JPH042815A - Conjugate draw-formed product, its production and woven or knit fabric made of conjugate draw-formed product - Google Patents

Abstract

PURPOSE:To obtain the subject formed article having antislip properties, high elasticity and moist surface to give a unique feeling and exhibiting the characteristic features of two constituent resins by combining a resin containing a thermoplastic elastomer having a specific hardness with other thermoplastic resin at a specific ratio. CONSTITUTION:(A) A resin containing >=50wt.% of a thermoplastic elastomer (e.g. ethylene . alpha-olefin copolymer) having a hardness of >=40 (measured in conformity to JIS A) and (B) a resin composed mainly of a thermoplastic resin (e.g. polyolefin resin) other than the above thermoplastic elastomer are combined with each other and extruded in such a manner as to form a formed article containing the component A exposed to at least a part of the surface of the formed article in longitudinally continued state. The extrusion product is drawn as it is at a draw ratio of >=2 under a condition to obtain a drawn product in which the component A occupies >=10% of the cross-section perpendicular to the longitudinal direction.

Description

[Detailed description of the invention]

[Field of Industrial Application] The present invention relates to a composite stretched molded product, a method for producing the same, and a knitted fabric of the composite stretched molded product. and its manufacturing method, and knitted fabrics. [Prior Art] Conventional Stretch-molded filaments made of polyethylene terephthalate, polyamide, etc., that is, multifilaments, are made into fabric fibers by stretch-molding and are widely used for clothing, etc. Stretch-molded products made of polyolefins such as polypropylene, i.e., monofilaments, are widely used as materials for ropes, fishing nets, nets, strings, woven bags, etc. Furthermore, polyethylene terephthalate, polyamides, and polypropylene are used as materials. Composite fibers having one component (core component) and a second component (sheath component) of a thermoplastic resin with a lower softening point than the first component, such as polyethylene or ethylene-vinyl acetate copolymer, are also known as materials for nonwoven fabrics. [Problem to be solved by the invention] By the way, synthetic fiber products such as ropes, fishing nets, strings, fabrics, sheets, bags, gutters, brushes, non-woven fabrics, etc.
Both are made of an aggregate of many synthetic fibers. Certain textile products may be required to have a high coefficient of friction and high elasticity. This tendency is especially strong in products that require slip resistance, such as ropes, nets, strings, and sheets, which are widely used in a variety of applications. In light of these requirements, conventional stretch-molded fabrics made of polyolefin made of polyethylene terephthalate, polyamide, etc., and nonwoven fabrics made of composite fibers made of polyethylene terephthalate, polyamide, etc., both have a small coefficient of friction. Thermoplastic elastomers have been known as materials with high coefficients of friction and high elasticity, but they have had the problems of being slippery, lacking in elasticity, and insufficient to meet social demands. ing. Thermoplastic elastomers are already used as molded products such as automobile window frames, moldings, and bumpers. However, in the past, it was believed that thermoplastic elastomers had a defect in that they were weak in strength and easily broke when formed into thin threads. He discovered that even thermoplastic elastomers can be stretched, and that stretching improves their strength, a fact that no one had ever predicted. It was believed that even if stretched during manufacturing, the elastic force would return to the original state, making stretching virtually impossible.The present invention was developed as described above. It is a technology that attempts to solve the conventional problems based on the knowledge obtained from the fact that the stretched elastomer is slip-resistant, has elasticity, has a moist surface, and has a unique feel. A composite stretched molded product that has both the excellent properties inherent to a stretched thermoplastic resin, a method for producing such a composite stretched molded product, and a knitted fabric with such properties are the technical issues to be solved. . [Means for Solving the Problems] The composite stretch-molding initial speed thermoplastic elastomer of the present invention is
The first component is a resin containing 0% by weight or more, and the second component is a resin whose main component is a thermoplastic resin other than a thermoplastic elastomer. The magnification is 40 or more, and the magnification is 2 when the first component and the second component are both combined.
The ratio of the first component in the cross-sectional area in the direction perpendicular to the stretched length direction is 10% or more, and the first component covers at least a part of the surface portion in the length direction. formed continuously. In addition, it is further preferable that the first component is a resin containing a polyolefin resin in addition to the thermoplastic resin. First manufacturing method 1i of the composite stretched molded product of the present invention. Using a die equipped with a first orifice for extruding the first component and a second orifice for extruding the second component, the first orifice ζ extrudes a resin containing 50% by weight or more of a thermoplastic elastomer as the first component. 2nd orifice ＼ Extrudes a resin whose main component is a thermoplastic resin other than a thermoplastic elastomer as a second component. During extrusion, at least a part of the surface of the molded product is continuous with the first component in the length direction. The first component and the second component are combined so as to form a filament, and then the cooled composite undrawn filament is subjected to a drawing treatment at a magnification of 2 times or more. The second method for producing a composite stretched molded product of the present invention is to form the film A with a resin containing 50% by weight or more of a thermoplastic elastomer, while substantially containing a thermoplastic resin other than the thermoplastic elastomer. A film B is formed using resin as the main component, and each film is laminated with at least one surface having the above-mentioned film A. The resulting multilayer laminate is cut to form an unstretched flat yarn. The stretched flat yarn is stretched in the length direction at a magnification of 2 times or more. The multilayer laminate intermediately obtained in the third manufacturing method of the second manufacturing method of the composite stretched product of the present invention is stretched in the uniaxial direction at a magnification of 2 times or more.Then, the stretched multilayer laminate obtained is is cut into a tape shape with the long side parallel to the drawing direction to obtain a drawn flat yarn. Knitted fabric of the present invention (1) Contains the composite stretched product of the present invention as one of the fibers. [Detailed Description of the Invention] The composite stretched molded product of the present invention uses a first component consisting of a resin containing a thermoplastic elastomer (hereinafter sometimes referred to as "elastomer"). Examples of the elastomer used as the first component of the composite stretched molded product of the present invention are as follows. That is, the elastomer referred to here can be an IL. Specifically, a resin formed from a specific partially crosslinked copolymer composition (I) and, if necessary, a polyolefin resin (n) can be mentioned. . Below, the preparation method of partially crosslinked copolymer composition (I) forming an elastomer that can be used in the present invention will be explained in detail.
Next, after explaining specific examples of elastomers, the discussion will proceed to the composite stretch-molded product of the present invention.

[First component] Structure of partially crosslinked copolymer composition (r)> Partially crosslinked copolymer composition (1) that is a component of an elastomer that can be used as the first component of the composite stretched molded product of the present invention is the following substance. That is, for example, it contains an ethylene/a-olefin copolymer (A) and, if necessary, a polyolefin resin (hereinafter referred to as "polyolefin resin (B)" to distinguish it from the polyolefin resin (n)). At least one of the ethylene/a-olefin copolymer (A) and the polyolefin resin (B), usually the ethylene/a-olefin copolymer (A) alone or the ethylene/a-olefin It is formed by partially crosslinking both the copolymer (A) and the polyolefin resin (B). As a representative example, 14 partially crosslinked copolymer compositions obtained by dynamically heat-treating a predetermined mixture in the presence of a crosslinking agent (
r). Here, the predetermined mixture is mixed with an ethylene/a-olefin copolymer (A), a polyolefin resin (B), and, if necessary, a peroxide non-crosslinked hydrocarbon rubber-like substance, a mineral oil softener, etc. Consisting of: ethylene/a-olefin copolymer (A)
and the polyolefin resin (B) is 100 parts by weight,
Among them, ethylene/a-olefin copolymer (A)
is 100 to 20 weight clothing polyolefin resin (B) is 0
- 80 weight clothes In addition, peroxide non-crosslinked hydrocarbon rubbery material is O - 100 weight clothes, mineral oil softener is 0 - 2
00 weight clothing preferably comprises 0 to 100 parts by weight of iL. <Method for Preparing Partially Crosslinked Copolymer Composition (■)> The partially crosslinked copolymer composition (1), which is a component of the elastomer used in the present invention, may be prepared, for example, by the following method. That is, partially crosslinked copolymer composition (I) L ethylene.
a-olefin copolymer (A), or preferably 6
Dai The ethylene/a-olefin copolymer (A)
It is preferable that the polyolefin resin (B) and the like be added to the mixture and dynamically heat-treated and mixed using a specific method. Ethylene/α-olefin copolymer (A) which is preferably dynamically heat treated together with polyolefin resin (B) etc.
For example, ethylene-propylene copolymerization, ethylene-propylene-nonconjugated diene ternary or multi-component copolymerization, ethylene-butadiene copolymer, ethylene-1-
Butene soldier combination Ethylene-1-butene-nonconjugated diene multi-component polymer Substantially amorphous copolymer containing ethylene and an a-olefin having 3 to 14 carbon atoms as main monomers, or a copolymer thereof. Mixtures may be mentioned. Among these, preferred are ethylene-propylene copolymerized ethylene-propylene-nonconjugated diene terpolymers. Among these, example number f1 is 6 as a non-conjugated diene monomer that is preferably used in a polymer such as an ethylene-propylene-non-conjugated diene terpolymer.Dicyclopentadiene, 1,4-hexadiene, cycloocta Jien,
Examples include methylenenorbornene and 5-ethylidene-2-norbornene. These may be used alone or in combination. In particular, I as an ethylene/a-olefin copolymer
A terpolymer containing a monomer such as t, dicyclopentadiene or 5-ethylidene-2-norbornene as a non-conjugated diene monomer is preferred. The Mooney viscosity of these binary, ternary or multi-component copolymers [
ML (100° C.)] Usually 10 to 180, preferably 40 to 140, and its iodine value is preferably 16 or less. The composition ratio of each monomer constituting the above ethylene/a-olefin copolymer (A) may be as follows. That is, the molar ratio between ethylene and α-olefin is 50,150 to 90/10, defined as “ethylene unit/molefin unit”. Preferably,
It is good if it is 70/30 to 85/15. In addition, in the case of a ternary or multicomponent copolymer containing a non-conjugated diene as a monomer, the molar specific force between the non-conjugated diene and the 1-olefin, which includes ethylene and a-olefin, is In the ratio defined as “olefin unit/non-conjugated diene unit”,
Usually, it is 98/2 to 90/10, preferably Idai 9773 to 94/6. In addition, when the above-mentioned ethylene/a-olefin copolymer (A) is dynamically heat-treated, as a polyolefin resin (B) that is preferably mixed with the ethylene/a-olefin copolymer (A), Specifically, an example +
f, ethylene, propylene, 1-butene, 1-
Examples include homopolymers of 1-olefins such as hexene and 4-methyl-1-pentene. Alternatively, a copolymer composed of two or more of these 1-olefins bonded to each other can be mentioned. Or a co-electrochemical combination of a-olefin and other polymerizable monomers contained in a proportion of 15 mol% or less, such as ethylene-acetate vinyl military combination, ethylene-acrylic acid military combination ethylene-acrylic Acid methyl copolymerization book Ethylene-ethyl acrylate military combination Ethylene-methacrylic acid military combination Ethylene-methyl methacrylate military combination order Examples include resinous polymeric substances. Note that these may be used alone or in combination. Of these, melt flowray)
(ASTM-D-1238-657, 190°C, 230°C for heated propylene polymers) (hereinafter referred to as "MFRJ") is 0.1 to 50 g71
A polyolefin resin (B) having a crystallinity of 40% or more as determined by X-ray diffraction measurement is preferably used. Among these, more preferable polyolefin resin (B)
Reported as MFR5f0. 1~50g/10m1n
, a peroxide-decomposed polyolefin resin with a crystallinity of 40% or more, specifically a peroxide-decomposed isotactic polypropylene, or propylene and 1
Co-electrochemical combination with other a-olefins contained in a proportion of 5 mol% or less, such as propylene-ethylene military combination, propylene-L-butene military combination, propylene-1-hexene combination, propylene-4-methyl Examples include -1-pentene copolymer. The peroxide-decomposed polyolefin resin referred to here is a polyolefin resin in which both peroxide and a mixture are kneaded under heat and thermally decomposed to reduce the molecular weight and improve fluidity. When the polyolefin resin (B) is dynamically heat-treated together with the ethylene/a-olefin copolymer (A), the peroxide-decomposed polyolefin resin and the peroxide-crosslinked polyolefin resin are further mixed together and these treatments are performed. It would be good if it was done. Note that peroxide crosslinked polyolefin is a polyolefin resin in which polyolefin is mixed with peroxide and both are kneaded under heating to crosslink the polyolefin and reduce fluidity. For example, as a mixture of peroxide decomposition type polyolefin resin and peroxide crosslinked polyolefin resin,
Examples include a mixture of peroxide decomposed polypropylene and peroxide crosslinked polyethylene. Peroxide crosslinked polyethylene has a density of 0.910 to 0.94
It is preferable to use low, medium or high density polyethylene of 0 g/, , I. In particular, the above mixture is a/b with polypropylene as a1 and peroxide cross-linked polyethylene as b.
The weight ratio defined by 10010 to 30/70, especially 40/20 to 2°/40
It is best to mix the mixture in such a proportion that Furthermore, in addition to the above-described polyolefin resin (B), a peroxide non-crosslinked hydrocarbon rubber-like substance may be added to the elastomer used in the present invention. Such a peroxide non-crosslinked hydrocarbon rubber material is preferably added together with the ethylene/a-olefin copolymer (A) and the polyolefin resin (B).
L refers to a resin that does not crosslink or reduce fluidity even when mixed with peroxide and kneaded under heat. Specific examples of peroxide non-crosslinked hydrocarbon rubber-like substances include CI, polyisobutylene, butyl rubber, etc.In addition, propylene monomer content is 70 mol%.
Examples of the above-mentioned copolymers include propylene-ethylene copolymer, propylene-1-butene copolymer, and the like. Further examples include atactic polypropylene. Note that these may be used alone or in combination. , ::tt, U17) Polyisobutylene rubber, butyl rubber and propylene-1-butene copolymer are most preferred. In addition, it is recommended to add mineral oil-based softeners in the same way as the peroxide non-crosslinked hydrocarbon-based rubbery substances mentioned above.
Alternatively, aromatic compounds may be mentioned. These compounds usually weaken the intermolecular forces of the rubber during roll processing, making processing easier. They also help disperse carbon black, white carbon, etc., or reduce the hardness of vulcanized rubber. It is used to increase flexibility or elasticity. In the present invention, when preparing the partially crosslinked copolymer composition (I), it is not necessarily necessary to incorporate a peroxide non-crosslinked hydrocarbon rubber-like substance or a mineral oil softener. The flow characteristics of the material, that is, the moldability may be further improved. For the preparation of partially crosslinked copolymer composition (r), ethylene/
A blend containing an a-olefin copolymer (A), a polyolefin resin (B), and, if necessary, a peroxide non-crosslinked hydrocarbon rubber material, or a mineral oil softener is used. τ, and at the same time, a crosslinking agent is also blended and used for partial crosslinking. Examples of the crosslinking agent used in the preparation of the partially crosslinked copolymer composition (I) include organic peroxides, sulfur, and phenolic vulcanizate polyamines. These 41 organic peroxide or phenolic vulcanizing agents are preferably selected in order to impart excellent physical properties to the resulting partially crosslinked copolymer composition (r) and further to the elastomer. An example of the above-mentioned phenolic vulcanizing agent used as a crosslinking agent is alkylphenol formaldehyde tree! Examples include 11 triazine-formaldehyde resin and melamine-formaldehyde resin. In addition, the above-mentioned organic peroxides include dicumyl peroxide, di-tert-butyl peroxide,
2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane, 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane-3,1,
3-bis(tert-butylperoxyisopropyl)
Benzene, 1,1-bis(tert-butylperoxy)-3,3,5-)limethylcyclohexane, n-
Butyl-4,4-bis(tert-butylperoxy)
Valerate, dibenzoyl peroxide, tert-butyl peroxybenzoate, and the like. Note that these may be used alone or in combination. Among these, bisperoxide compounds are preferred because of their low odor and high scorch stability, particularly 1. 3
-bis(tart-butylperoxyisopropyl)benzene is most suitable. In addition, if a crosslinking agent or a polyfunctional vinyl monomer as described above is added at the same time, the crosslinking reaction may be carried out under more uniform and gentle conditions. A crosslinking aid that may be used in addition to the crosslinking agent is p-
Examples include quinone dioxime, p,p'-dibenzoylquinone dioxime, and the like. Examples of polyfunctional vinyl monomers that may be used in addition to the crosslinking agent include IL divinylbenzene (DVB), diethylene glycol methacrylate, and polyethylene glycol methacrylate. Note that these may be used alone or in combination. In particular, divinylbenzene (DVB) aL is most preferred because it has the effect of homogenizing the crosslinking effect caused by heat treatment and enables the preparation of an elastomer with well-balanced fluidity and physical properties. Blending ratio of ethylene/a-olefin copolymer (A) and polyolefin resin (B) used in preparing partially crosslinked copolymer composition (■) Ethylene/a-
The sum of the olefin copolymer and polyolefin resin (B) is 100 parts by weight, of which 100 to 20 parts by weight, preferably 50 to 30 parts by weight, of the ethylene/a-olefin copolymer (A) are added. For polyolefin resin (B) car 〇~80 weight, preferably 50~70
It is best to use parts by weight. Moreover, polyolefin resin (B
) Polypropylene and polyethylene may be used together, and in this case, polypropylene is preferably used in an amount of 20 to 40 parts by weight and polyethylene is preferably used in an amount of 20 to 40 parts by weight. Peroxide non-crosslinked hydrocarbon rubber-like substance or mineral oil softener usage ratio IL is as follows for 100 parts by weight of the total amount of ethylene/a-olefin copolymer (A) and polyolefin resin (B). It is good for the sake of That is, when only one of the peroxide non-crosslinked hydrocarbon rubbery material or the mineral oil softener is used, the amount of IL used is the same, and when both are used together, the amount of both is used. The total amount of the ingredients is preferably 200 parts by weight or less, preferably in the range of 5 to 100 parts by weight. Sarabanmi Crosslinking agent usage ratio IL Ethylene/a-olefin copolymer (A), polyolefin resin (B)
005 to 2% by weight, preferably 01 to 2% by weight of the entire blend, which is further mixed with a peroxide non-crosslinked hydrocarbon rubbery substance and a mineral oil softener as required.
0.5% by weight is good. In preparing the partially crosslinked copolymer composition (1), a mixture of the above-mentioned ethylene/a-olefin copolymer (A), polyolefin resin (B), etc. is dynamically heat-treated.
Partial crosslinking may be performed. Dynamic heat treatment here refers to performing a crosslinking reaction while kneading jL in a molten state. It is preferable that cross-talk is carried out in a molten state in a non-release type apparatus, and particularly preferably in an atmosphere of an inert gas such as nitrogen or carbon dioxide gas. Reaction temperature L Usually 1.50-280℃, preferably 1.5℃
A temperature of 70 to 240°C is desirable. Interference time ↓ play Normally 1~2
0 minutes, preferably 1 to 10 minutes,
This is carried out until the a-olefin copolymer (A) or polyolefin resin (B) is partially crosslinked. Partially crosslinked state and +1 Partially crosslinked copolymer composition after crosslinking means that it is crosslinked to such an extent that the original properties such as flexibility and elasticity as a nilastomer are still sufficiently retained. do. Usually, it means a state in which the gel content force f1 is 40% by weight or more as measured by the method described below. That is, the crosslinking reaction 14 due to crosslinking is preferably continued until the gel content reaches 45% by weight or more, more preferably 70 to 995% by weight. The gel content of the composition after crosslinking may be measured as follows. After crosslinking, approximately 100 g of a sample pellet of the partially crosslinked copolymer composition is weighed and immersed in 30 cc of cyclohexane at 23° C. for 48 hours in a closed container, and then the sample is taken out and dried. From the weight of the residue obtained by drying, ethylene/a-olefin copolymer (A), polyolefin resin (B),
The corrected final weight after drying (Y) is the value obtained by subtracting the weight of all coexisting substances other than the peroxide non-crosslinked hydrocarbon rubbery material. On the other hand, from the weight of the sample pellet, the weight of cyclohexane-soluble components other than the ethylene/a-olefin copolymer (A), the polyolefin resin (B), and the peroxide non-crosslinked hydrocarbon rubber material, such as the weight of the mineral oil softener. ,
Furthermore, the corrected initial weight (X) is obtained by subtracting the weight of the bridge bridge and other components such as carbon black, clay talc, and silica that may be added as necessary.
shall be. From these values, the gel content is determined by the following formula. By such a method, the ethylene/a-olefin copolymer (A) and, if necessary, the polyolefin resin (B
) and an ethylene/a-olefin copolymer (
At least one of A) and polyolefin resin (B),
Usually 14 Ethylene/a-olefin copolymer (A
) A partially crosslinked copolymer composition (1) is obtained in which the ethylene/a-olefin copolymer (A) and the polyolefin resin (B) are partially crosslinked. <Polyolefin resin (■)> Il is added to the elastomer used as the first component in the present invention.
The partially crosslinked copolymer composition (r) alone may be formed by combining and mixing the polyolefin resin (n) if necessary. Plate as a polyolefin resin (n) used as necessary with the partially crosslinked copolymer composition (1) as a component of the elastomer used in the present invention Resin similar to the polyolefin resin (B) added during dynamic heat treatment can be used. However, the MFR of these polyolefin resins (n) is 5 to 100. Especially 10-50 g710ml1n
It is preferable that Note that the resin actually used as the polyolefin resin (n) may be the same or different from the resin used as the polyolefin resin (B). Such polyolefin resin (n) is preferably used in an amount of 0 to 70 parts by weight in the entire elastomer. The partially crosslinked copolymer composition (r) as described above, or the partially crosslinked copolymer composition (r) with a polyolefin resin (
The hardness of the elastomer used as the first component of the composite stretch molded product in the present invention is JI
Hardness measured by S A of 40 or more, preferably 5
It is desirable that it is 5 or more. An elastomer having a hardness of less than 40 when measured according to JIS A is not preferred because sufficient strength as a composite stretch-molded product cannot be obtained. Specific examples of elastomers> Examples of the above-mentioned elastomers used as the first component of the composite stretched molded product in the present invention include the following substances. −
As an example, a mixture of a partially crosslinked copolymer composition (r) and a polyolefin resin (+r), the total of which is 100 parts by weight, of which the proportion of the partially crosslinked copolymer composition (r) is 100 to 3000 to 3000 parts by weight. Examples include compositions in which the proportion of the fin resin (n) is 0 to 70 parts by weight. More specifically, these elastomers used in the present invention may be exemplified by the following compositions. (1) Comprised of a mixture of an ethylene/a-olefin copolymer (A) and a polyolefin resin (B).This mixture is further supplemented with a peroxide non-crosslinked hydrocarbon rubber material and/or The sum of the ethylene/a-olefin copolymer (A) and the polyolefin resin (B) is 100 parts by weight, of which the ethylene/a-olefin copolymer ( A) is 100-20 weight clothes, preferably 80-300
~30 parts by weight of the refin resin (B) is 0 to 80 parts by weight, preferably 20 to 70 parts by weight, or 10 parts by weight like this.
0 parts by weight of mixture number: Peroxide non-crosslinked hydrocarbon rubbery substance or mineral oil softener, and if both are used in combination, the total proportion of both. is 0~200 weight clothes preferably 0
An elastomer composition (namely, partially crosslinked copolymer composition (1)) obtained by dynamically heat-treating and partially crosslinking a mixture blended in a proportion of ~100 parts by weight in the presence of a crosslinking agent can be mentioned. (2) The above partially crosslinked copolymer composition (r) and polyolefin resin (n) are mixed, and an additional 700/3 parts by weight ( 233 parts by weight) of polyolefin resin (n). In the present invention, the following substances can also be used as the elastomer. (3) An elastomer composition obtained by mixing a partially crosslinked product (I) of an ethylene/a-olefin copolymer (A) and a polyolefin resin (n), which
- Partially crosslinked product (I) of olefin copolymer (A) is 1
00 to 20 parts by weight, preferably 80 to 20 parts by weight.On the other hand, examples include elastomer compositions containing 20 to 80 parts by weight of polyolefin resin (n). However, as the partially crosslinked product (I) of the ethylene/a-olefin copolymer (A), the following compounds can be mentioned. That is, two types of compounds can be mentioned as the partially crosslinked product (r) of the ethylene/a-olefin copolymer (A). Type 1 includes ethylene a-
An ethylene/a-olefin copolymer obtained by partially crosslinking a homogeneous composition of the olefin copolymer (A) in the presence of a crosslinking agent by statically, for example, pressing and heat treating it. Partially crosslinked product (I) of (A) is mentioned. On the other hand, the second generation was originally not a single composition,
A mixed composition of an ethylene/a-olefin copolymer and a peroxide non-crosslinked hydrocarbon rubber material and/or a mineral oil softener, the composition ratio being 1.
For 100 parts by weight of a-olefin copolymer (A)
Peroxide non-crosslinked hydrocarbon rubber-like material or mineral oil softener L. If both are used in combination, the combined composition is preferably up to 200 parts by weight, preferably up to 100 parts by weight. A partially crosslinked product of the ethylene/a-olefin copolymer (A) obtained by partially crosslinking such a mixed composition by statically, for example, pressing and heat treatment in the presence of a crosslinking agent. (1) is mentioned. Among these, the elastomers shown in (1) or (2) are preferably used in the present invention. Note that these may be used alone or in combination. Arbitrary Components of the First Component> In the composite stretch-molded product of the present invention, a resin containing an elastomer formed with the above structure is used as the first component. The first component is a new polyolefin resin (hereinafter referred to as polyolefin resin (■), polyolefin resin (B)) separately from the polyolefin resin (n) contained in the elastomer. "Polyolefin resin (C)"
”) It is preferable to use it together with the elastomer. Types of polyolefin resin (C) that may be used in combination with the elastomer in the first component include resins similar to the above-mentioned polyolefin resin (B). However, M F RL of these polyolefin resins (C) is 0. 1
~50 g/fOmfn, especially 02-10 g7
It is preferable that it is 10 m1n. Note that the resin actually used as the polyolefin resin (C) may be the same or different from the resin used as the polyolefin resin (B). First component used in the present invention +1 Furthermore, the following fillers or additive components may be included as subcomponents. We regret that such subcomponents include fillers such as 1i, carbon black, clay talc, calcium carbonate, heavy calcium carbonate, kaolin, diatomaceous silica, aluminum 9, aspesk, graphite, glass fiber, or phenyl-a- Naphthylamine, 2.6-
Antioxidant life such as tert-butylphenol, tetrakis [methylene-3-(3°, 5'-di-tert-butyl-4'-hydroxyphenyl)propionate comethane, etc.] Weather-resistant vessel, heat-stable vessel, flame-retardant vessel, antistatic effect, coloring Qi L Other additive components may be mentioned. Note that such fillers or additives may be added at the stage of preparing the partially crosslinked copolymer composition (r). The proportion of the elastomer in the first component of the composite stretched molded product of the present invention may be 100% by weight, but it is desirably 50% by weight or more, preferably 60% by weight or more of the total weight. If the proportion of elastomer is less than 50% by weight of the total weight, the inherent properties of the elastomer will decrease in almost proportion to the blending ratio, and if the blending ratio is too low, the feel and friction coefficient of the stretched product will deteriorate due to composite stretching using only polyolefin resin as raw material. There is no substantial difference from the case of molded products. To obtain the first component, the thermoplastic elastomer and the polyolefin resin (C) may be melt-mixed in advance using an extruder or the like, or may be mechanically mixed using a blender or the like. r Second component] In the composite stretched molded product of the present invention, 1i, together with the first component obtained by forming the structure as described above, a resin whose main component is a thermoplastic resin other than a thermoplastic elastomer is the main component. A second component in which is formed is used. Specific examples of the thermoplastic resin used as the main component of the second component of the composite stretched molded product of the present invention include the following resinous polymeric substances. For example, low-density polyethylene, high-density polyethylene, polypropylene, poly-1-butene, poly-4-methyl-1-
Pentene or ethylene, propylene 1-butene, 4
- Polyolefins such as random or block copolymers of a-olefins such as methyl-1-pentene;
Ethylene/acrylic acid military combination Ethylene/vinyl acetate military combination 1 cup ethylene/vinyl alcohol (iE
, ethylene/vinyl chloride military combination, etc.
Vinyl compound copolymers: polystyrene, acrylonitrile/styrene copolymer & ABS, styrene resins such as methyl methacrylate/styrene copolymer & a-methylstyrene/styrene copolymer, polyvinyl chloride,
Polyvinylidene chloride Vinyl chloride resin such as vinyl chloride/vinylidene chloride copolymer Polyacrylic acid ester such as polymethyl acrylate and polymethyl methacrylate, Nylon 6, Nylon 6-6, Nylon 6-10, Nylon 11, Nylon 12 Polyamides such as: thermoplastic polyesters such as polyethylene terephthalate and polybutylene terephthalate, polycarbonates, and the like. Note that these may be used alone or in combination. Among these, polyolefins are preferred, and among polyolefins, polyethylene or polypropylene is particularly preferred. Such polyolefins are advantageous over thermoplastic resins other than polyolefins in that they have good affinity with the elastomer, which is the first component, and improve adhesion between the first and second components. The thermoplastic resin forming the second component preferably has the following properties. That is, when spun as a single drawn monofilament with a diameter of 0.08 to 2.0 mA+≠ at a draw ratio of 2 to 12 times, the strength is 1.0 mA.
0-8. 0 g/melon A resin whose linear elongation can take a value in the range of 5 to 80%.
When formed into a drawn flat yarn with a draw ratio of 3 to 9 times, the strength is 1. 0-7. 0 g/cL A resin whose linear elongation can take a value in the range of 5 to 80% is suitable. The second component of the composite stretched molded product of the present invention is a car that contains the resinous polymer material as described above as a substantial main component.In exceptional cases, if the amount is extremely small, specifically if it is less than 15% by weight. The above-mentioned elastomer used in the first component may also be included. When the elastomer is contained even in a very small amount, the adhesiveness between the first component and the second component may be improved. In addition, fillers such as the above-mentioned carbon black that can be included in the second component of the composite stretched molded product of the present invention in the first IL component, oxidation-proofing material, weather-resistant material, heat-stable material, flame-retardant material, etc. Anti-static sheath Colored unicorn Other additive components may be included together with a very small amount of the elastomer resin mentioned above, or may be included alone without adding the elastomer resin. Filling vessel actually used for the second component, additive components, etc.
The filler and additive components actually included in the first component may be the same or different. The first generation of composite stretch molding of the present invention formed from such components The first component and the second component are combined at a magnification of 2.
It has been stretched more than twice as much. If the stretching ratio is less than 2 times, it is not preferable because sufficient strength as a composite drawn product cannot be obtained. Further, in the composite stretched molded product of the present invention, the proportion of the first component in the cross-sectional area in the direction perpendicular to the stretched length direction is 10% or more. If the proportion of the first component is less than 10%, it is not preferable because the characteristics of the thermoplastic elastomer, that is, a sufficient coefficient of friction that appears as a feel of the composite stretched molded product will not appear on the surface of the composite stretched molded product. Furthermore, in the composite stretch-molded product of the present invention, the first component forms at least a portion of the surface portion continuously in the length direction. Specifically, the following examples are given. For example, 1f, there is a filament made of the first component with a semicircular cross section, a filament made of the second component with a semicircular cross section, and a force C1 so that the cross section is circular. In addition, the filament formed by the first component and the filament formed by the second component may be twisted together to form one filament, and the filament formed by the second component At least a portion of the surface of the thread-like material being formed may be covered with the first component over its entire length. Alternatively, as shown in FIG. 1, it is preferable that the sheath portion l formed of the first component is formed of the second component and covers the entire length of the core portion 2 in a cylindrical shape. In addition, in the case of a so-called sheath/core type monofilament as shown in Figure 1, the core may be located at the center of the sheath, or it may be slightly offset from the center, and as a result of the offset, the part that corresponds to the core may be slightly offset. It may stick out. Furthermore, although the core part 2 formed of the first component is surrounded by the sheath part 1 formed of the second component, the core part 2 is largely offset from the center,
A portion of the core portion 2 made of the first component may be exposed from the sheath portion 1 made of the second component. In the above cases, any of them can be used as a filament. The first generation of composite stretch molding of the present invention may also have the following shape. That is, as shown in FIG. 3, a tape-like material made of the first component and a tape-like material 4 made of the thermoplastic resin of the second component are pasted together. in this case,
At least one of the back and front image surface layers, preferably the same surface layer 1a
, lb are both formed of the first component, and the same surface layer 1
A tape-like material 4 made of a thermoplastic resin as a second component is sandwiched between a and lb and pasted together. At the time of bonding, some type of adhesive may be used. Direct heat fusion may be used as shown in Figure 3. In this case, (a monofilament that can be used as a flat yarn) As described above, the composite drawn composite product of the present invention is generally used by being formed into a monofilament or a flat yarn. When a monofilament is used, the physical properties are as follows. It is preferable that the fineness is as follows: The fineness is preferably 100 to 25,000 deniers. When the fineness is 100 to 25,000 deniers, the stiffness of the monofilament will be appropriate, and the strength of one monofilament may also be high. The linear strength of the monofilament is preferably 1.0 g/d or more.When the strength is 1.0 g/d or more, it exhibits the normally required mechanical strength.The linear elongation is preferably 100% or less. When the linear elongation is 100% or less, the knitting machine can be used sufficiently, and the resulting net has a good appearance and sufficient dimensional accuracy. It is preferable to manufacture the elastomer composite drawn monofilament by the following method.As shown in FIG. 26, and a first winder 30 is preferably provided.First extrusion device 111k A cooling tank 12 for cooling a plurality of unstretched molten resins to obtain unstretched monofilaments is used for extruding the molten resin. The die 13a connected to the extruder 13 has a first orifice for the sheath and a second orifice for the core, so that the first component can mix the second component with the sheath and the core. It is preferable to use a conjugate die that can continuously coat a mold to form a composite undrawn monofilament. Around the first drawing device 20, for example, the first roll mechanism 21, the first drawing heating tank 22, and the second The first annealing device 26 has a first annealing heating tank 24 and a third roll mechanism 25. The first annealing device 26 has a first roll mechanism 216. It is composed of a mechanism that cools the extruded molten resin and takes it as a composite undrawn monofilament, the take-up speed can be variably adjusted, and the composite undrawn monofilament is sent to the next stage.First drawing heating tank 221 The composite undrawn monofilament sent out from the first roll mechanism 21 is heated and easily stretched between the two inner tank rolls 22a and 22b. The first stretching heating tank 22 may be a 100° C. hot water bath or an open hot air heating tank. The second roll mechanism 23 can variably adjust the drawing speed faster than the first roll mechanism 21 in order to turn the composite undrawn monofilament obtained by heating in the first drawing heating tank 22 into a drawn monofilament. It consists of a sending mechanism. The first annealing heating tank 24 receives the composite drawn monofilament sent from the second roll mechanism 23.The first annealing heating tank 24 receives the composite drawn monofilament sent from the second roll mechanism 23.Like the first drawing heating tank 22, it is a mechanism that can heat water, etc. in the tank. It is made up of. The third roll mechanism 25 can variably adjust the feed speed to be slightly slower than the feed speed of the second roll mechanism 23 so that the composite drawn monofilament undergoes heat shrinkage during annealing treatment in the first annealing heating tank 24. It is composed of a mechanism that feeds the winder to the winder 30 of No. 1. First winder 301 It is preferable to have a plurality of winding rolls 31 for simultaneously winding a plurality of composite drawn monofilaments sent from the third roll mechanism 25. In order to obtain the composite drawn monofilament of the present invention, the first extrusion device 11, first drawing device 20, first annealing device 26, and first winding machine 30 are operated as follows. good. A heat-molten resin containing 50% by weight or more of a thermoplastic elastomer is extruded as a first component through the sheath orifice of the Funschgate die 13a of the extruder 13, and a second component is extruded through the core orifice. L A sheath-core type composite monofilament having the same composition is cooled in a cooling bath 12 to obtain a composite undrawn monofilament. Next, the composite undrawn monofilament is sent from the first roll mechanism 21 to the first drawing heating tank 22, heated in the first drawing heating tank 22, and the composite drawn monofilament is made by adjusting the speed of the second roll mechanism 23. Form. With this speed adjustment, 2
Obtain a stretching ratio of more than 100%. Furthermore, the second roll mechanism 23
Then, annealing treatment is performed in the first annealing heating tank 24 by adjusting the speed of the third roll mechanism 25, and the composite drawn monofilament is collected by a winder 30. The stretching step may be carried out in one stage as described above, but may be carried out in two stages as shown in FIG. 6, or in multiple stages. In the case of two-stage stretching, a second stretching device 40 as described below may be added between the first stretching device 20 used in the one-stage bottom stretching described above and the first annealing device 26. The second stretching device 40 If has a second stretching heating tank 41 and a fourth roll mechanism 42. Around the second drawing heating tank 41 In the first drawing heating tank 22
The first stage composite drawn monofilament is heated and the speed of the second roll mechanism 23 is adjusted.
It is constructed with a mechanism that can heat the water, etc. in the tank so that the second stage of stretching can be easily performed between the two tank rolls 41a and 41b. The conditions are the same as in the one-stage heating and stretching bath, and a hot water bath at 100°C or hot air may be used. The fourth roll mechanism 42 can be variably adjusted slightly faster than the second roll mechanism 23 in order to convert the first stage composite drawn monofilament heated in the second drawing heating tank 41 into the second stage composite drawn monofilament. It consists of a sending mechanism. In addition, these above 1. Second. Third. Fourth roll mechanism 21. 23. 25.42 is preferably a godet roll type or a nip roll type with two or more. Also, as in the first stage drawing, the first annealing heating tank 24 of the first annealing device 26 is placed in a position to receive the second stage drawn monofilament from the fourth roll mechanism 42. The feed rate is changed to the fourth roll mechanism 42.
The feed rate is adjusted to be slightly slower than the feed rate. To obtain a composite drawn monofilament, such a first
The extrusion device 11, the first stretching device 20, the second stretching device 40, the first annealing device 26, and the first winding machine 30 may be operated as follows. Similarly to the above, a component corresponding to the first component, which is a heat-molten resin containing 50% by weight or more of a thermoplastic elastomer, is extruded from the first orifice for the sheath portion of the conjugate die 13a. The two components are extruded from the second core orifice, and a composite monofilament of the same components is cooled in a cooling bath 12 to obtain a composite undrawn monofilament. Then the first
．． Second. a fourth roll mechanism 21°23.42; a first roll mechanism 21°23.42;
The composite undrawn monofilament is drawn in the second drawing heating tank 2241 and the drawing ratio is finally adjusted to 2 times or more.
A composite drawn monofilament is obtained. Further, the composite drawn monofilament is annealed in the first annealing heating tank 24 and the third roll mechanism 25, and the obtained composite drawn monofilament is collected by the first winder 30. In the case of two-stage stretching, the ratio of the stretching ratio of the first stage to the second stage is 1
Stage ゛ It is preferable to set the ratio of the second stage to 7525 to 955. In the stretching process, the resin is heated to a temperature slightly lower than its softening point. After annealing, the composite drawn monofilament is wound up using a winding machine. As mentioned above, when manufacturing the composite stretched molded product of the present invention, if a rotational feeding method is adopted in which all parts of the feeding portion of the thermoplastic elastomer that come into contact with the resin are rolls, the friction coefficient of the elastomer will be relaxed during manufacturing. The productivity is not much different from that of composite drawn monofilaments made of general thermoplastic polyolefin resins. Elastomer drawn flat yarn> The composite drawn product of the present invention may be formed into a flat yarn and used. The fineness of the composite drawn flat yarn of the present invention is 100 to 25.
000 denier is preferable. Fineness is 100-2500
When the denier is in the range of 0, yarn breakage may be small and the strength per flat yarn may be sufficient. The strength is 1. It is preferable that it is Og/d or more. Strength is 1. 0g/d
In this case, the strength required for flat yarn can be obtained. In the linear direction, the linear elongation up to the breaking point is preferably 200% or less. When the linear elongation is 200% or less, it is preferable because it is easy to use on a knitting machine, the appearance of the net becomes straight, and the dimensional accuracy is improved. Composite drawn flat yarn of the present invention 1 can be obtained by one-step drawing using, for example, the following apparatus and the following method. As shown in FIG. 7, the apparatus for obtaining a composite drawn flat yarn is equipped with a second extrusion apparatus 14, a first film forming apparatus 18, a third drawing apparatus 50, and a second annealing apparatus 57.
Preferably, +L is provided with a second winder 60 for collecting the composite drawn flat yarn. Around the second extrusion device 14: A second die nozzle 13b having a mechanism for forming unstretched molten resin into a two-layer thin film.
is provided in the extruder 13. Further, the first film forming apparatus 18 is provided with a near ring 15 that air-cools the molten resin discharged from the second die nozzle 13b, and a stabilizing plate 17 that folds in two the circular film solidified into a thin film by the near ring 15. It is formed. A film-forming take-off roll 16 is provided on the stabilizing plate 17 . The second die nozzle 13b connected to the extruder 13 is preferably a T-die or a blown film die. The third stretching device 50 includes a cutter mechanism 51 that cuts the resin film folded and formed by the second extrusion device 14 and the film forming device 18 into a tape shape to form an unstretched tape-like object. There is. Further, the third stretching device 50 includes a fifth roll mechanism 52, a third stretching heating tank 53, and a sixth stretching device 50.
The second annealing device 57 preferably has an annealing tank 55 and a seventh roll mechanism 56 . The fifth roll mechanism 52 is configured with a mechanism that can adjust the speed of the unstretched film to the next stage and send it to the next stage so that the cutter mechanism 51 can cut the unstretched film into tape shapes. The third stretching/heating tank 53 (a mechanism that can perform variable heating to transfer heat to the unstretched tape so that it can be easily stretched) receives the unstretched tape-like material sent out from the fifth roll mechanism 52. The third stretching heating tank 53 may be either a hot plate hole, a hot roll dog, or a hot air heating tank type.The set temperature of the third stretching heating tank 53 is determined by the rotation speed of each roll mechanism. Six roll speeds may be selected as appropriate.The sixth roll mechanism 54 receives the stretched tape-like material from the third stretching heating tank 53.The stretching speed can be variably adjusted to a speed higher than that of the fifth roll mechanism 52. The fifth and sixth roll mechanisms 52 and 54 described above are preferably of a godet roll system and two or more nipple roll systems. 2 annealing heating tank 5
Around 5, the speed of the stretched tape-shaped material is adjusted by the sixth roll mechanism 54, and the tape is subjected to a large loss.It is composed of a mechanism that can conduct heat to the stretched tape and variably heat it to a temperature that allows heat shrinkage treatment. The seventh roll mechanism 56 is a mechanism that can variably adjust the feed speed to be slightly slower than the feed speed of the sixth roll mechanism 54 so that it can be heat-shrinked in the second annealing heating tank 55, and sends it to the second winding machine 60. It is configured. To obtain a composite drawn flat yarn, one such second
The extrusion device 14, the first film forming device 18, the third stretching device 50, the second annealing device 57, and the second winding device 60 may be operated as follows. As in the case of obtaining a composite drawn monofilament, 50% of the thermoplastic elastomer was
The heat-molten resin containing at least % by weight of the component to be omitted from the first component is extruded from one of the two discharge holes of the extrusion device 14. On the other hand, the second component is extruded from the other discharge hole to form a sheet-like two-layer laminate of the same component. Next, the two-layer laminate thus obtained is cooled by nearing 15, and an unstretched film is formed by a stabilizer plate 17 and a film-forming take-off roll 6. Next, the cutter mechanism 51 of the third stretching device 50 cuts the unstretched film into a tape shape to form an unstretched tape-like product. Next, the undrawn tape-like material is sent from the fifth roll mechanism 52 to the third drawing heating tank 53, heated in the third drawing heating tank 53, and formed into a drawn flat yarn by adjusting the speed of the sixth roll mechanism 54. do. With this speed adjustment, 2
Obtain a stretching ratio of more than 100%. Next, it is heated in the second annealing heating tank 55 and annealed by heat shrinkage by adjusting the speed of the seventh roll mechanism 56, and then passed from the seventh roll mechanism 56 to the second winder 60. GL when trying to obtain multi-stage composite drawn flat yarn
Another stretching heating tank and a roll mechanism similar to the third stretching device 50 may be added between the third stretching device 50 and the second annealing device 57 to apply the second stretching. It can also be obtained by the following method. That is, a film formed by the T-die method or the inflation method is pre-stretched in a uniaxial direction at a magnification of 2 times or more in a stretching heating tank at 50 to 180°C, and then the obtained composite stretched film is stretched parallel to the stretching direction. You may cut with the direction of the long side as the long side. In addition to the above, j3 is a method for obtaining an unstretched composite film.
There is also a method of laminating a separately molded thermoplastic resin film onto an elastomer film obtained by the 7-die method or the inflation method. In addition to this, the two-layer laminate intermediately obtained as described above is pre-stretched in the uniaxial direction at a magnification of 2 times or more, and then the obtained stretched two-layer laminate is stretched in a direction parallel to the stretching direction. There is a method of cutting it into a tape shape with the long side as the long side. In a composite drawn flat yarn obtained by such a method using a two-layer or multilayer laminate, both the elastomer and the thermoplastic resin are stretched in the machine direction, and the elastomer constitutes at least one surface layer. An adhesive component may be interposed between the elastomer and the thermoplastic resin to connect them together. For example, such adhesive components include adhesive polyolefin resins having LL polar groups. <Knitted fabric> The thermoplastic composite drawn monofilament or thermoplastic elastomer flat yarn obtained by the method described above may be spun alone or blended with other monofilaments or flat yarns to form a blended yarn (see Figure 2 or Figure 2). 4. Textile product 3 as shown in Figure 4 has a flat plate.
Satin, pile, double-layered, used for woven patterns such as pattern weaving. In that case, only monofilaments or flat yarns in one direction are used as the composite drawn product of the present invention, and 4L
It may partially be made into a composite stretch molded product of the present invention. Since the composite drawn monofilament of the present invention is hard to slip, the coefficient of friction of the entire woven fabric can be adjusted by changing the number of composite drawn monofilaments inserted into the woven fabric. The required anti-slip property varies depending on the use of the fabric, and in order to obtain the anti-slip effect according to the present invention, it is desirable to have at least 10 filaments per 100 filaments required for the original fabric. The woven fabric of the composite drawn monofilament of the present invention is processed into, for example, the following textile product 3. Analogy number! It can be used as an anti-slip backing, or as a raw material. As nets, nets are used for various fisheries for aquaculture such as seaweed.
Examples include nets for golf practice. Examples of mesh fabrics include construction nets, insect-repellent nets, mosquito nets, light edges, and high-strength nets for civil engineering. It can also be used to make vegetable bags for storing onions, oranges, etc. Other threads include interlining tapes for rugs, shrink curtains, etc., and continuous warp threads for filters. Sarabanmi: For hats, sandals, cushions, etc. Also used for general interior threads such as bags. It can also be used for products made of corn, bamboo, etc. It is also possible to use a drawn monofilament made of elastomer alone or a drawn elastomer composite monofilament for the warp threads, and weave the weft threads with conventional threads to create a shiny edge for a tatami surface with anti-slip properties. Other examples include insect repellents, rugs, and brushes, but there is no need to limit them to these. Specific examples of uses of the woven fabric according to the composite drawn flat yarn of the present invention include the following. Examples of IC cloth bags include L rice and wheat bags, grain bags, flexible container bags, sandbags, tobacco bags, futon bags, etc. Examples of sheets include IL agricultural sheets, automobile covers, specialty sheets, construction sheets, and tents. Examples of bags include shoving bags and airbags. Special textiles include IL interior cloth, tatami lining, covers, light-shielding nets, windproof nets, carpets, and interlining fabrics. Examples of nets include nets for various fisheries, agricultural nets, etc. It can also be used as a covering material for covered electric wires. Furthermore, it can also be used as a flexible container bag, its anti-slip lining, or as a raw material. Specifically, it can also be used as anti-slip backings for overlays, flower mats, cushioned carpets, etc. Furthermore, if heat embossing is further applied to the surface of the fabric according to the present invention, the embossing will add anti-slip properties, making it suitable for counter-sleeving.
If the composite stretched products are fused to each other by embossing, it is possible to prevent the weave from shifting. Sara & Mi Conventional Materials for stringed objects made of elastic materials 1 Like rubber strings, practically only synthetic rubber or natural rubber is known, and therefore heat-sealing is almost impossible. Invention No. 9 The elastic body can also be heat-sealed, making it possible to apply striped objects formed of the elastic body to a wide range of unknown uses. [Example] Examples will be described below. In the implementation, the following elastomers 1 to 3, polyethylene, and polypropylene were prepared by the method described above.Elastomer-1 Density: 0. 89g/cd, MFR (230℃, 2.16kg load) 1g/
10m1n. JIS A Hardness 48 Elastomer-2 Density 0. 89 g/am'. MFR (230℃, 10kg load) 15 g 71
0m1n. JIS A Hardness 85 Elastomer-3 Density 0. 89 g /CrIp1 MFR (230°C, 10 kg load) 50 g 71
0m1n. JIS A hardness 60 High-density polyethylene using the following polyolefin resin: Density 0. 953g/car, MFR (190℃, 2.16kg load) 0. 8g
710m1n. Low density polyethylene: Density 0. 920g/cm', MFR (190°C, 2.16kg load) 2. 0
g/10m1n. Polypropylene MFR (230°C, 2.16kg load) 2. 4g
/10m1n, <Examples 1 to 9> Using the above elastomers 1 to 3 and further using high density polyethylene, low density polyethylene or polypropylene, composite drawn monofilaments were produced under the conditions shown in Table 1, such as the predetermined molding temperature and stretching ratio. Table 1 shows the physical properties of the manufactured and investigated physical properties. In addition, Autograph S manufactured by Takasugi Seisakusho Co., Ltd. was used for the test.
-500 was used, and the load cell used was 10 kg. In addition, the strength and linear elongation were measured at a room temperature of 21°C at a tensile speed of 1 and 500 mm/win. The chart speed was 5 Q Q Hm/win, and the distance between chucks was 500 mm. In addition, the elasticity, surface slip resistance, and feel were evaluated by touch, and the items were ranked from less slippery to more slippery.
To x Toshi 9 <Comparative Example 1> Using the same testing machine as in Example 1, in which monofilament was manufactured using polypropylene under the conditions shown in Table 1 and its physical properties were investigated, the tensile speed, chart speed, and chuck distance were Table 1 shows the physical properties obtained in the same manner as in Example 1. The evaluation criteria for feel, slip resistance, and touch were the same as in Example 1 (hereinafter referred to as blank spaces). <Examples 10 to 16> Using the above elastomers 1 to 3, high density polyethylene, low density polyethylene, or polypropylene was further used. Using the same testing machine as in Example 1, in which a composite drawn flat yarn was manufactured under the conditions shown in Table 2, including the prescribed forming temperature and stretching ratio, and its physical properties were investigated, the tensile speed, chart speed, and chuck distance were measured. was the same as in Example 1 (hereinafter referred to as the margin). Table 2 shows the physical properties. The evaluation criteria for feel, slip resistance, and feel were the same as in Example 1. Comparative Example 2.3> Example 1 in which stretched flat yarn was produced using polypropylene under the conditions shown in Table 2 and its physical properties were investigated. Table 2 shows the physical properties using the same testing machine as in Example 1, with the same tensile speed, chart speed, and chuck distance as in Example 1. The evaluation criteria for feel, slip resistance, and touch are actual reference experiments> Polypropylene MFR (230°C, 2.16 kg load) 2.4 g 710 m1n and the above Elasto v-1
, 3 to produce a single layer or multilayer film as shown in Table 3, and calculate the static friction coefficient and kinetic friction coefficient according to JIS K 712.
Table 4 shows the results of the anti-slip properties measured in Table 5. From the above results, the properties of the stretched elastomer, which is hard to slip, has elasticity, has a moist surface and has a unique feel, and [Effects of the Invention] The composite stretched molded product of the present invention and the knitted fabric and cloth of the composite stretched molded product have the above-mentioned configuration. It combines the properties of a stretched elastomer, which is non-slip, elastic, has a moist surface and a unique feel, and the excellent properties inherent to a stretched thermoplastic resin. Moreover, the method for producing a composite stretched molded product of the present invention can obtain a composite stretched molded product having such properties.

[Brief explanation of the drawing]

Figure 1 shows a cross section of a sheath-core type composite drawn monofilament. Figure 2 shows a sheath-core type monofilament fabric. Figure 3 shows an enlarged cross-section of a flat yarn laminated in three layers. Enlarged 1 showing the cross section of a knitted flat yarn fiber product. Figure 5 shows 1 of the monofilament.
FIG. 6 shows the concept of a two-stage drawing device for monofilament. FIG. 7 shows the concept of a one-stage drawing device for flat yarn. 1...Sheath 1b...Surface layer 2...Core...Textile product...Second component tape-like material 1...First extrusion device 2...Cooling tank 3...Extruder 4. Second extrusion device 0.40. 50...Stretching device

Claims (1)

[Scope of Claims] [1] A first component consisting of a resin containing 50% by weight or more of a thermoplastic elastomer, and a second component consisting of a resin whose substantial main component is a thermoplastic resin other than the thermoplastic elastomer. JIS of the thermoplastic elastomer
The hardness based on A is 40 or more, and the first component and the second component are stretched at a magnification of 2 times or more in a combination, and the first component in the cross-sectional area in the direction perpendicular to the stretched length direction is
A composite stretch-molded article in which the component accounts for 10% or more, and the first component forms at least a portion of the surface portion continuously in the length direction. [2] The composite stretch molded product according to claim 1, wherein the main component of the second component is a polyolefin resin. [3] The composite stretched molded product according to claim 1 or 2, which is formed as a monofilament, has a fineness of 100 to 25,000 deniers, a linear strength of 1.0 g/d or more, and a linear elongation of 100% or less. [4] The composite stretch molded product according to claim 1 or 2, which is formed as a flat yarn, has a fineness of 100 to 25,000 deniers, a linear strength of 1.0 g/d or more, and a linear elongation of 100% or less. [5] The composite stretch-molded product according to any one of claims 1 to 4, wherein the first component is a resin comprising a polyolefin resin in addition to the thermoplastic resin. [6] Using a die equipped with a first orifice for extruding the first component and a second orifice for extruding the second component, the first orifice extrudes 50% by weight of the thermoplastic elastomer.
The resin containing the above is extruded as a first component, and the second orifice extrudes a resin whose main component is a thermoplastic resin other than a thermoplastic elastomer as a second component. The first component and the second component are combined such that at least a portion of the first component is formed continuously in the length direction, and then cooled in a cooling bath, and the resulting composite undrawn filament is given a magnification of 2. A method for producing a composite stretched product, characterized by applying a stretching treatment of twice or more. [7] The method for producing a composite stretched product according to claim 6, wherein the stretching process is performed multiple times and in multiple stages. [8] Film A is formed from a resin containing 50% by weight or more of a thermoplastic elastomer, while film B is formed from a resin whose substantial main component is a thermoplastic resin other than the thermoplastic elastomer; Each film is laminated with at least one surface having the above-mentioned film A, and the resulting multilayer laminate is cut to form an unstretched flat yarn, and then the unstretched flat yarn is 2 1. A method for producing a composite stretch-molded product, which comprises stretching at a magnification of at least 2 times. [9] Stretching the multilayer laminate according to claim 8 in a uniaxial direction at a magnification of 2 times or more, and then cutting the obtained stretched multilayer laminate into a tape shape with the long side parallel to the stretching direction. 1. A method for producing a composite drawn product, characterized in that the drawn flat yarn is produced by stretching. [10] A knitted fabric containing the composite stretched product according to any one of claims 1 to 5 as one of the fibers.