WO2016003189A1 - 부직포 바인더용 열접착형 복합섬유 - Google Patents
부직포 바인더용 열접착형 복합섬유 Download PDFInfo
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- WO2016003189A1 WO2016003189A1 PCT/KR2015/006759 KR2015006759W WO2016003189A1 WO 2016003189 A1 WO2016003189 A1 WO 2016003189A1 KR 2015006759 W KR2015006759 W KR 2015006759W WO 2016003189 A1 WO2016003189 A1 WO 2016003189A1
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- composite fiber
- center point
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- fiber
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/34—Core-skin structure; Spinnerette packs therefor
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
Definitions
- the present invention relates to a heat-adhesive composite fiber for a nonwoven fabric binder, and more particularly, to a heat-adhesive composite fiber for nonwoven fabric binders having various functions such as elasticity, bulkiness, heat retention, moisture permeability, and the like.
- the heat-bonded composite fiber can produce a nonwoven fabric by heat fusion using heat energy such as hot air.
- Heat-bonded composite fibers are generally composed of two components, and by melting only one component by heat, a bulky nonwoven fabric can be easily obtained through adhesion of the fibers, which is widely used in industrial materials.
- olefin-based heat-bonded composite fibers are widely used as sanitary materials such as diapers, napkins and pads, or as non-woven fabrics for household goods or filters.
- an olefin-based heat-bonded composite fiber forms a core with polypropylene or polyester as a first component, and a sheath with polyethylene or polypropylene having a melting point of 20 ° C. or more lower than the core as a second component. ) Is formed.
- the two-component heat-adhesive composite fibers having different melting points can be applied not only to the core-sheath form but also to the parallel form and the divided form.
- the core-sheath form may be manufactured in a core-sheath concentric form and a core-sheath eccentric form.
- the cross-sectional shape of the fiber may be a circular or non-round shaped cross section. In general, since the elasticity of the release cross-section fiber is superior to the circular cross-section, various types of release cross-section fibers are used.
- Korean Patent No. 1224095 discloses a heat-adhesive composite fiber composed of a first component made of a polyester resin and a second component made of a polyolefin resin having a temperature of 20 ° C. or more lower than the melting point of the polyester resin. Disclosed is a heat-adhesive composite fiber characterized by a retention rate of 20% or more.
- Patent Application No. 2013-9707 discloses a thermally adhesive composite fiber for a nonwoven binder having excellent elasticity and bulkiness by using a polyester resin containing a multifunctional component as a first component.
- the heat-adhesive composite fiber for nonwoven binder is very important to have excellent elasticity and bulkiness, so the research and development for this is continued.
- the inventors of the present invention have a circular cross section, a circular hollow, a mold release cross section, or a release hollow form in order to improve the elasticity, bulkiness, heat retention, moisture permeability, etc.
- the thermal adhesive composite fiber for the nonwoven fabric binder of the present invention which is more excellent in elasticity and bulkiness is developed.
- An object of the present invention is to provide a heat-bonded composite fiber for a nonwoven binder excellent in elasticity and bulkiness.
- Another object of the present invention is to provide a heat-adhesive composite fiber for a nonwoven fabric binder having excellent bulkiness and excellent heat retention and moisture permeability.
- the first embodiment of the present invention comprises a polyester-based resin or polypropylene resin as a first component and a polyolefin-based resin having a melting point of 20 ° C. or more lower than that of the polyester-based resin as a second component. It is a hollow composite fiber, and provides a heat-bonded composite fiber for a nonwoven binder, characterized in that having a hollow ratio of 5 to 30%.
- a second embodiment of the present invention is a hollow composite fiber composed of a polyester-based resin or polypropylene resin as a first component and a polyolefin-based resin having a melting point of 20 ° C. or more lower than that of the polyester-based resin as a second component. It provides a heat-bonding composite fiber for a nonwoven fabric binder, characterized in that the release rate by 1.5 or more.
- a third embodiment of the present invention is a composite fiber having a sheath-core structure which is formed by using a polyester resin or a polyolefin resin as a first component and a polyolefin resin as a second component, wherein the core is a shape retaining portion.
- the volume control unit provides a heat-bonded composite fiber for a nonwoven binder, characterized in that the form protrudes in the opposite direction of the fiber center.
- the polyester-based resin is a polycondensation product of aromatic dicarboxylic acid and glycol, polyethylene terephthalate, polyethylene 2, 6- dinaphthalate, polypropylene terephthalate, polybutylene terephthalate, polyethylene isophthalate or these
- the polyolefin-based resin is a high density polyethylene, low density polyethylene, polypropylene, ethylene-propylene copolymer, or provides a heat-adhesive composite fiber for a nonwoven binder, characterized in that a mixture thereof.
- the polypropylene resin is a heat-adhesive composite fiber for a nonwoven binder, characterized in that the propylene monopolymer, a copolymer of propylene-based ethylene, butene-1 or 4-methyl pentene-1, or the like, or a mixture thereof.
- the propylene monopolymer a copolymer of propylene-based ethylene, butene-1 or 4-methyl pentene-1, or the like, or a mixture thereof.
- the heat-bonding composite fiber is a core-sheath core form, core-sheath eccentric form, or side-by-side (side by side) and the heat-bonded composite fiber for a nonwoven binder characterized in that it has a hollow to provide.
- the first component is 30 to 70% by weight and the second component provides a heat-adhesive composite fiber for a binder, characterized in that consisting of 70 to 30% by weight.
- the cross-section of the composite fiber provides a heat-bonded composite fiber for a nonwoven binder, characterized in that the circular cross section having a circular hollow or a release cross section having a release hollow.
- the release cross-sectional composite fiber provides a heat-bonded composite fiber for a nonwoven binder, characterized in that the hollow composite fiber having a hollow in the core.
- the present invention also provides a heat-adhesive composite fiber for a nonwoven binder characterized by satisfying the following conditions when defining the peak at the top of the distal end of the volume control part and the valley between the volume control parts.
- thermoforming composite fiber for a nonwoven binder characterized by satisfying the following conditions.
- T1 The largest distance from the center point M to the peak 300
- T2 The smallest distance from the center point M to the peak 300
- CTmax A circle formed by connecting a tangent of the volume control unit 200 having a next highest value from the center point M to the peak 300 based on T1.
- CTmin: T2 is a circle formed by connecting the tangent of the volume control unit 200 having a distance from the center point M to the peak 300 with the next smaller value
- Ctmax A circle formed by connecting a tangent of the volume control unit 200 having a next highest value whose distance from the center point M to the peak 300 based on t1 is higher.
- Ctmin a circle formed by connecting a tangent of the volume control unit 200 having a distance t2 from the center point M to the peak 300 with the next smaller value
- CTmax-R The difference between the center point (CTmaxM) and the center point (M) of CTmax
- CTmin-R The difference between the center point (CTminM) and the center point (M) of CTmin
- Ctmax-r The difference between the center point (CtmaxM) and the center point (M) of Ctmax
- Ctmin-r The difference between the center point (CtminM) and the center point (M) of Ctmin
- volume control unit is provided with 4 to 12, and provides a heat-bonded composite fiber for a nonwoven binder, characterized in that formed in 40 to 60% in the fiber cross-sectional area.
- the present invention also provides a nonwoven fabric comprising the above-mentioned heat-bonded composite fiber for a nonwoven fabric binder.
- This invention has the effect of providing the heat-bonding composite fiber for nonwoven fabric binder which is excellent in elasticity and bulkiness, and is favorable in processability.
- an element for controlling the volume so as to be spaced between adjacent fibers to form an interstitial portion can increase the water permeability through the capillary phenomenon.
- the heat-bonded composite fiber for nonwoven binder of the release cross-section of the present invention has an effect that can minimize the skin irritation by minimizing the skin contact surface.
- Example 11 is a photograph of a cross section of a fiber of Example 11 of a second embodiment of a heat-adhesive composite fiber for a nonwoven fabric binder according to the present invention.
- Figure 2 is a cross-sectional conceptual view of a fiber according to an embodiment of a third embodiment of the heat-adhesive composite fiber for a nonwoven fabric binder according to the present invention.
- FIG 3 is a conceptual view of a fiber cross section according to another embodiment of the third embodiment of the heat-adhesive composite fiber for a nonwoven fabric binder according to the present invention.
- FIG. 4 to 7 is a cross-sectional conceptual view of a third embodiment of the heat-adhesive composite fiber for a nonwoven fabric binder according to the present invention.
- FIG. 8 is a conceptual diagram of a spinneret corresponding to the volume control part of the third embodiment of the heat-adhesive composite fiber for a nonwoven fabric binder according to the present invention.
- Fig. 9 is a cross-sectional conceptual view of a fiber assembly of a composite fiber of a third embodiment of a heat-adhesive composite fiber for a nonwoven fabric binder according to the present invention.
- FIG. 10 is a view showing a skin contact state of a fiber aggregate formed of the composite fibers of the third embodiment of the heat-adhesive composite fibers for the nonwoven fabric binder according to the present invention.
- the fiber assembly includes both long fibers and short fibers, and means non-limiting examples of one or more fibers such as woven fabrics, knitted fabrics, nonwoven fabrics, webs, slivers, tows, and the like.
- FIG. 1 is a photograph taken from the cross section of the fiber of Example 11 of the second embodiment of the heat-adhesive composite fiber for nonwoven fabric binder according to the present invention
- Figure 2 is a film of the heat-adhesive composite fiber for nonwoven fabric binder according to the present invention
- Fig. 3 is a conceptual view of the fiber cross section according to an embodiment of the third embodiment
- Fig. 3 is a conceptual view of the fiber cross section according to another embodiment of the third embodiment of the heat-adhesive composite fiber for a nonwoven fabric binder according to the present invention.
- 3 is a cross-sectional conceptual view of a third embodiment of a heat-adhesive composite fiber for nonwoven binders according to the present invention
- FIG. 8 is a spinneret corresponding to a volume control unit of a third embodiment of the heat-adhesive composite fiber for nonwoven binders according to the present invention.
- 9 is a conceptual view of a cross-sectional view of a fiber aggregate of a composite fiber of a third embodiment of the heat-adhesive composite fiber for a nonwoven fabric binder according to the present invention
- FIG. 10 is a nonwoven fabric binder according to the present invention.
- the fiber aggregate formed of a composite fiber of the third embodiment of the adhesive composite fibers is a view showing a state in contact with skin.
- the present invention relates to a heat-adhesive composite fiber for a nonwoven fabric binder, and excellent in elasticity and bulkiness, and to a heat-adhesive composite fiber for a nonwoven fabric binder having excellent heat retention and moisture permeability according to the shape change of the fiber.
- the heat-adhesive composite fiber for a nonwoven fabric binder according to the present invention has a melting point of 20% than that of the polyester-based resin as the first component and the polyester-based resin or the polypropylene resin as the first component and excellent elasticity and bulky property. It is made of a polyolefin resin having a low C or more, and has a hollow ratio of 5 to 30%.
- the second embodiment of the heat-adhesive composite fiber for nonwoven fabric binder having excellent elasticity and bulkiness of the present invention the melting point of the polyester resin or polypropylene resin as the first component and the polyester resin as the second component is 20 °C It is made of a polyolefin resin of the above low, and the release rate is characterized by 1.5 or more.
- the release rate may be calculated by the following equation.
- the polyester-based resin is a condensation polymerization product of aromatic dicarboxylic acid and glycol, terephthalic acid, isophthalic acid, phthalic acid, naphthalenedicarboxylic acid, etc. may be used as the aromatic dicarboxylic acid, and ethylene glycol, 1,3- as glycol. Propanediol, 1,4-butanediol and the like can be used.
- the polyester-based resin is a polycondensation product of aromatic dicharbonic acid and glycol, and polyethylene terephthalate, polyethylene 2,6-dinaphthalate, polypropylene terephthalate, polybutylene terephthalate, polyethylene isophthalate, or a mixture thereof It is preferably used.
- polyethylene terephthalate Preferably polyethylene terephthalate can be used.
- the polyester resin preferably has an intrinsic viscosity (IV) of 0.50 to 0.80 dL / g measured according to ASTM 02857.
- the polyolefin resin is a part which is melted at the time of thermal bonding, it is preferable to use a polyolefin resin having a melting point of 20 °C or more lower than the polyester resin.
- Polyolefin resins are high density polyethylene (HDPE), medium density polyethylene (MDPE), low density polyethylene (LOPE), polypropylene, ethylene-propylene copolymers or mixtures thereof.
- HDPE high density polyethylene
- MDPE medium density polyethylene
- LOPE low density polyethylene
- polypropylene ethylene-propylene copolymers or mixtures thereof.
- HOPE high density polyethylene
- the flow flow index (MI, Melting lndex) of the polyolefin resin is not particularly limited, but is preferably 1 to 100 g / 10 minutes, more preferably 5 to 40 g / 10 minutes.
- the polypropylene resin is a polypropylene is a general term for a crystalline polymer containing propylene as a main component, and among these, a copolymer with propylene monopolymer, as well as propylene, ethylene, butene-1 or 4-methyl pentene-1, etc .; Or mixtures thereof may be preferably used. Preferably, homo polypropylene may be used.
- the copper flow index (MI, Melting lndex) of the polypropylene resin is not particularly limited, but is preferably 1 to 100 g / 10 minutes, more preferably 10 to 40 g / l0. Minutes.
- the heat-adhesive composite fiber for nonwoven fabric binder of the present invention is preferably made of 30 to 70% by weight of the first component and 70 to 30% by weight of the second component.
- the heat-adhesive composite fiber composed of the polyester resin and the polyolefin resin may contain 10 to 100,000 ppm of an ultraviolet absorber in order to suppress fluorescence.
- the ultraviolet absorber suppresses the ultraviolet fluorescence of the polyester-based resin, and thus may provide an environmental safety feeling when applied as a sanitary material.
- the ultraviolet absorber may be preferably used organic and inorganic compounds including benzophenone, benzotriazole, triazine, benzoic acid, anthranilic acid, cinnamic acid, phenyl acrylate, phenolic acid and acrylonitrile. have.
- the ultraviolet absorber is preferably in the form of a masterbatch kneaded in a polyester resin or a polyolefin resin.
- the ultraviolet absorber preferably contains 10 to 100,000 ppm with respect to the first component or the total fiber weight.
- the content of the ultraviolet absorbent is less than 10 ppm, it is impossible to achieve the desired ultraviolet absorbance suppression, and when the amount of the ultraviolet absorbent is greater than 100,000 ppm, interruption of the smooth melt flow of the resin may occur, causing frequent cutting in the spinning step or rapid pressure in the spinneret. It may increase the fairness.
- the heat-bonded composite fiber for a nonwoven fabric binder of the present invention may further include an inorganic additive of 0 to 20% by weight relative to 100% by weight of the heat-bonded composite fiber for a nonwoven fabric binder.
- an inorganic additive of 0 to 20% by weight relative to 100% by weight of the heat-bonded composite fiber for a nonwoven fabric binder.
- Inorganic additives are titanium dioxide, calcium carbonate, zirconium oxide, zirconium silicate, barium carbonate, alumina, carbon black and mixtures thereof.
- the heat-bonded composite fibers for nonwoven fabric binders of the first and second embodiments of the present invention are core-sheath concentric, core-sheath eccentric, side-by-side, and hollow. to be.
- the size of the hollow occupies 1-50% in the core-sheath cross section, preferably 5-30%.
- the cross-sectional shape of the heat-adhesive composite fiber for nonwoven fabric binder according to the second embodiment of the present invention is circular or heteromorphic in cross section, and the hollow shape is circular hollow or hetero hollow as in the cross-sectional form.
- the release rate increases, and when the hollow rate is 4% or more, the release rate has a value of 1.5 or more.
- the release rate of the form of circular hollow or mold release hollow of the present invention is 1.5 or more, preferably 1.5 to 5.
- the release cross section of the second embodiment of the present invention may be provided in various shapes such as triangular, square, ellipse, and the like, but is not necessarily limited thereto.
- the release cross section has a higher bending stiffness as the shape factor is changed, thereby improving the elasticity of the fiber.
- the cross section of the fiber is a triangular cross section
- the bending rigidity is about 1.2 times higher than that of the circular cross section, and the hollow is about three times higher.
- the single yarn fineness of the fiber excellent in the elasticity of this invention is 1-20 denier, Preferably it is 3-5 denier.
- the third embodiment of the heat-adhesive composite fiber for a nonwoven fabric binder according to the present invention is a release cross-section composite fiber, which is used as a polyester resin or a polyolefin resin as a first component, and a polyolefin resin as a second component.
- the first component and the second component form a composite fiber in a sheath-core structure, and the first component may form a sheath or a core. It is preferable that the resin having the higher melting point among the first component and the second component used as the second component capable of forming the core or the sheath constitutes the sheath with the resin having the lower melting point.
- the polyester resin is a polyolefin resin is as described above.
- the composite fibers of the third embodiment of the present invention be formed of hollow composite fibers having a hollow in the core in order to increase the moisture content in the fibers.
- the shape maintaining part 100 is preferably formed of 40 to 60% in the fiber cross-sectional area. If it exceeds the above range may be a problem in fiber formability, if it is below the above range may have a limit in expressing the morphology and various functionalities of the present invention.
- the shape maintaining part 100 means a fibrous shape between the center point M and the volume control part 200.
- the volume control unit 200 may protrude in a direction opposite to the center of the fiber, and the distal end may have a round shape. As illustrated in FIGS. 2 and 3, the uppermost portion of the distal end may be defined as the peak 300 and the valley 310 may be defined between the volume controllers. In this case, the radius of curvature of the peak may be defined as R, and the radius of curvature of the valley may be defined as r, and different and equal R and r values may be determined for each volume control unit.
- the value with the largest distance from the center point M to the peak 300 is T1
- the value with the smallest distance from the center point M to the peak 300 is called T2
- the valley 310 from the center point M is defined.
- the value with the largest distance can be defined as the value t2 having the smallest distance from the t1 center point M to the valley 310.
- CTmax the circle formed by connecting the tangential line of the volume control unit 200 having the next highest value whose distance from the center point M to the peak 300 based on T1
- T2 is defined as the peak (from the center point M).
- the circle formed by connecting the tangent of the volume control unit 200 having the next smaller value to the distance 300 is called CTmin, and the distance from the center point M to the valley 310 is the next highest value based on t1.
- CTmin The circle formed by connecting the tangential line of the volume control unit 200 has a Ctmax, and t2 is the distance from the center point M to the valley 310 by connecting the tangential line of the volume control unit 200 having the next smaller value.
- the fiber according to the present invention can satisfy the following conditions. 3-7)
- Z may be formed under the following conditions (1) and (2).
- CTmax-R, CTmin-R, Ctmax-r, Ctmin-r may satisfy the following conditions.
- T1 The largest distance from the center point M to the peak 310
- T2 The smallest distance from the center point M to the peak 310
- CTmax A circle formed by connecting a tangent of the volume control unit 300 having a next higher value from the center point M to the peak 310 based on T1.
- CTmin: T2 is a circle formed by connecting the tangent of the volume control unit 300 having a distance from the center point M to the peak 310 with the next smaller value
- Ctmax A circle formed by connecting a tangent of the volume control unit 300 having a next higher value from the center point M to the peak 310 based on t1.
- Ctmin a circle formed by connecting the tangent of the volume control unit 300 having a distance t2 from the center point M to the peak 310 with the next lowest value
- CTmax-R The difference between the center point (CTmaxM) and the center point (M) of CTmax
- CTmin-R The difference between the center point (CTminM) and the center point (M) of CTmin
- Ctmax-r The difference between the center point (CtmaxM) and the center point (M) of Ctmax
- Ctmin-r The difference between the center point (CtminM) and the center point (M) of Ctmin
- the condition (3), (4) may be related to the formability of the fiber according to an embodiment of the present invention. Ideally, the value should be 1, but cannot be 1 due to the rheological properties of the polymer.
- the condition (3) may be related to the formation of the volume control part, but outside of the above range, the deviation of the volume control part may increase, and the variation of the r value may also increase, which may affect the carding properties or the bulkiness in the fiber assembly.
- Condition (4) can be interpreted as fibrous morphology, which can affect the formability of the shape retaining part 100. Outside the above range, the shape retention of the fiber may be unstable.
- the spinneret of the volume control part 200 may be formed in a radial shape to form the fiber cross section as shown in FIG. 8.
- the angle ⁇ may be formed at an angle of 11 to 15 ° based on the center point M.
- the cross-sectional shape of the release cross section fiber of the third embodiment used in the present invention may be formed with 4 to 12 volume control sections on the fiber surface.
- a space is secured between the contact points at the point where the volume control part contacts the neighboring fiber surface as shown in FIG. 9 to cause a capillary shape or to hold dead air. Is formed.
- the space formed between the fibers and the neighboring fibers may be fixed, fixed, and maintained in shape through heat treatment.
- the skin contact surface is limited to the peak 300 of the volume control part 200, thereby minimizing the skin contact surface.
- the skin contact surface is limited to the peak 300 of the volume control part 200, thereby minimizing the skin contact surface.
- the release cross-section composite fiber of the third embodiment according to the present invention can contribute to improving the bulkiness and elasticity of the fiber through spontaneous crimp expression due to the difference in crystallization rate in the cooling and solidification process, thereby improving the bulkyness and elasticity of the fiber assembly. You will be able to improve.
- the method for producing the heat-adhesive composite fibers for nonwoven fabric binders of the first, second and third embodiments according to the present invention described above includes a first component and a polyolefin of a polyester resin or a polypropylene resin. Injecting and melting the second component composition containing the resin based on a separate extruder, the first component and the second component composition melted into the composite spinning device to spin at a spinning speed of 100 ⁇ 2,000 m / min And stretching the spun composite fiber. In general, when the spinning speed is 1,500 m / min or less, since the strength is 2.0 g / d or less, it is possible to improve the strength of the composite fiber to 3.0 g / d or more through the calculating step.
- the method of manufacturing the heat-adhesive composite fiber for sanitary materials of the present invention may further comprise the step of applying a crimp (crimp) in order to non-woven composite fiber to prepare a heat-adhesive composite fiber for a nonwoven binder of the present invention
- the method may further comprise cutting the stretched composite fiber to 30-64 mm.
- 60 wt% polyethylene terephthalate having an intrinsic viscosity of 0.64 dL / g as the first component composition and 40 wt% of high density polyethylene having a flow flow index of 20 g / 10 min as the second component composition were each melted by being introduced into a separate extruder.
- the molten first component and second component composition were introduced into a conventional core-sheath core hollow composite spinning device and spun at a spinning speed of 800 m / min.
- the composite fiber spun at 3.5 times or more at a temperature above the glass transition temperature of polyethylene terephthalate was stretched, crimped, and cut to 38 mm to prepare a core-sheath core hollow composite fiber.
- a composite fiber was prepared in the same manner as in Example 1, except that the hollow fiber of the prepared fiber was controlled to 10%.
- a composite fiber was prepared in the same manner as in Example 1, except that the hollow fiber of the prepared fiber was controlled to 30%.
- a composite fiber was prepared in the same manner as in Example 1, except that the cross-sectional shape of the prepared fiber was controlled by a core-sheath eccentric hollow form.
- Composite fibers were prepared in the same manner as in Example 1, except that the first component composition of the prepared fibers was 60% by weight of polypropylene (PP).
- PP polypropylene
- Composite fibers were prepared in the same manner as in Example 1, except that 3,000 ppm of trimethylol propane in the form of a master batch chip was added.
- a composite fiber was prepared in the same manner as in Example 6, except that 100,000 ppm of titanium dioxide (TiO 2) inorganic material was added instead of trimethylol propane in the form of a master batch chip.
- a composite fiber was prepared in the same manner as in Example 1, except that the hollow fiber of the prepared fiber was controlled to 5%.
- Composite fibers were prepared in the same manner as in Example 1, except that the hollow fiber of the prepared fiber was controlled to 40%.
- a composite fiber was prepared in the same manner as in Example 6, except that 10 ppm of trimethylol propane in the form of a master batch chip was added.
- Composite fibers were prepared in the same manner as in Example 6, except that 200,000 ppm of trimethylol propane in the form of a master batch chip was added.
- Example 6 the fluorescence of PET was also controllable.
- Example 7 it was possible to manufacture a fiber that can be added to the inorganic additives and excellent in bulkiness but also fluorescent shielding by the inorganic material.
- Comparative Examples 1 to 4 the comparative examples of the hollow-core hollow sheath type having a small, no hollow, or a large hollow were deteriorated in modulus and bulkiness compared to Examples 1 to 8.
- Comparative Example 2 having a hollow ratio of 40%, the hollow part is deformed while the hollow part is pressed in the cream part applying step, which is a short fiber manufacturing step, and it is confirmed that the elasticity and bulkiness of the fiber are lowered.
- 60 wt% polyethylene terephthalate having an intrinsic viscosity of 0.64 dL / g as the first component composition and 40 wt% of high density polyethylene having a flow flow index of 20 g / 10 min as the second component composition were each melted by being introduced into a separate extruder.
- the molten first component and the second component composition were introduced into a triangular cross-sectional shaped cross-section core-sheath hollow composite spinning device and spun at a spinning speed of 800 m / min.
- the composite fiber spun at 3.5 times or more at a temperature above the glass transition temperature of polyethylene terephthalate was stretched, crimped, and cut to 38 mm to prepare a core-sheath core hollow composite fiber.
- Composite fibers were prepared in the same manner as in Example 8, except that the first component composition of the prepared fiber was 50% by weight polyethylene terephthalate and the second component composition was 50% by weight high density polyethylene.
- Composite fibers were prepared in the same manner as in Example 8, except that the fineness of the prepared fibers was controlled by 3 denier.
- Composite fibers were prepared in the same manner as in Example 8, except that the hollow fiber of the prepared fibers was controlled to 15%.
- Composite fibers were prepared in the same manner as in Example 1, except that the first component composition of the prepared fibers was 60% by weight of polypropylene (PP).
- PP polypropylene
- a composite fiber was prepared in the same manner as in Example 8 except that the cross-sectional shape of the prepared fiber was controlled by an elliptical cross section having an elliptical hollow.
- a composite fiber was prepared in the same manner as in Example 8, except that the cross sectional shape of the prepared fiber was controlled by a rectangular cross section having rectangular hollow holes.
- Composite fibers were prepared in the same manner as in Example 8, except that the cross-sectional shape of the prepared fibers was controlled by a circular cross section having circular hollows.
- a composite fiber was manufactured in the same manner as in Example 15, except that the hollow fiber of the prepared fiber was controlled to 5%.
- a composite fiber was manufactured in the same manner as in Example 15, except that the hollow fiber of the prepared fiber was controlled to 0%.
- Examples 8 to 15 having a release rate of 1.5 or more included in the scope of the present invention were superior in bulkiness compared to Comparative Examples 5 and 6 having a release rate of less than 1.5.
- the comparative example of the hollow-core hollow sheath-shaped hollow form was small or there was no hollow, and the bulkiness was lowered as compared with Examples 8-15.
- Example 13 which is an elliptical section having elliptical hollow
- Example 14 which is a square section having square hollow
- Example 15 which is a circular cross section having circular hollow, and a triangular hollow having The release rate of the cross section was measured highest.
- 60 wt% polyethylene terephthalate having an intrinsic viscosity of 0.64 dL / g as the first component composition and 40 wt% of high density polyethylene having a flow flow index of 20 g / 10 min as the second component composition were each melted by being introduced into a separate extruder.
- the first component was composed of a core and the second component was composed of a sheath and spun at a spinning speed of 800 m / min with 6 volume control members.
- a composite fiber spun at 3.5 times or more at a temperature above the glass transition temperature of polyethylene terephthalate was stretched, crimped, and cut to 38 mm to prepare a sheath-core composite fiber having 5 deniers of fineness.
- the preparation was carried out in the same manner as in Example 16, but the first component was 60% by weight of polyethylene terephthalate and the second component was used by 40% by weight of high density polyethylene. Made of hollow composite fiber.
- the preparation was carried out in the same manner as in Example 17, but the first component was made of 50% by weight of polyethylene terephthalate and the second component was made of hollow composite fiber in the form of cis-core.
- Example 17 It was prepared in the same manner as in Example 17, but was made of a hollow composite fiber in the form of a sheath-core formed with 2 deniers.
- Example 17 It was prepared in the same manner as in Example 17, but the first component was made of hollow composite fiber in the form of sheath-core using 50% by weight of polypropylene and 50% by weight of high density polyethylene.
- Example 17 The same preparation as in Example 17 was performed, but the hollow cross-section of the sheath-core was made of hollow composite fibers having a circular cross-section of the sheath and the core.
- sheath-core was made of a sheath-core composite fiber having a circular cross section.
- Fineness in accordance with ASTM D 1577, measured by Fechmat equipment of Textechno.
- Compression bulkiness The sum of the load values at 10 mm intervals during compression to 50 to 100 mm and the total sum of 1/2 load values at 40 mm after compression were measured.
- Recovery bulkiness The sum of the sum of the load values at 40 mm after compression and the load values at 10 mm intervals during recovery from 50 to 100 mm was measured.
- Non-fluorescence UV fluorescence was compared and evaluated by irradiating UV of 320 ⁇ 360nm wavelength in the outside and the light-blocked space.
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Abstract
Description
| 구분 | 제1성분 | 제2성분 | 1성분/2성분 비율 | 단면 | 물성 | ||
| 섬도 | 중공율 | Rewet(g) | |||||
| 실시예16 | PET | HDPE | 6/4 | 이형단면 | 5 | 0 | 0.09 |
| 실시예17 | PET | HDPE | 6/4 | 이형단면 | 5 | 10 | 0.08 |
| 실시예18 | PET | HDPE | 5/5 | 이형단면 | 5 | 10 | 0.09 |
| 실시예19 | PET | HDPE | 6/4 | 이형단면 | 2 | 10 | 0.08 |
| 실시예20 | PET | HDPE | 6/4 | 이형단면 | 5 | 15 | 0.08 |
| 실시예21 | PP | HDPE | 5/5 | 이형단면 | 5 | 10 | 0.07 |
| 비교예7 | PET | HDPE | 6/4 | 원형단면 | 5 | 10 | 0.23 |
| 비교예8 | PET | HDPE | 6/4 | 원형단면 | 5 | 0 | 0.33 |
Claims (13)
- 제1성분으로 폴리에스테르계 수지 또는 폴리프로필렌 수지 및 제 2성분으로 상기 폴리에스테르계 수지보다 융점이 20℃ 이상 낮은 폴리올레핀계 수지로 이루어지는 중공형 복합섬유이고, 5~30 %의 중공율을 갖는 것을 특징으로 하는 부직포 바인더용 열접착형 복합섬유.
- 제1성분으로 폴리에스테르계 수지 또는 폴리프로필렌 수지 및 제2성분으로 상기 폴리에스테르계 수지보다 융점이 20℃ 이상 낮은 폴리올레핀계 수지로 이루어지는 중공형 복합섬유이고, 하기 식에 의한 이형율이 1.5 이상인 것을 특징으로 하는 부직포 바인더용 열접착형 복합섬유.[식]이형율(%): (단면외각둘레 + 중공외각둘레)2 / (4π x 단면적)
- 제1성분으로 폴리에스테르계 수지 또는 폴리올레핀계 수지로 사용되고, 제2성분으로 폴리올레핀계 수지를 사용하여 형성되는 시스-코어 구조의 복합섬유로,코어는 형태유지부로 시스는 부피제어부로 이루어지되,상기 부피제어부는 섬유 중심의 반대 방향으로 돌출된 형태인 것을 특징으로 하는 부직포 바인더용 열접착형 복합섬유.
- 제l항 내지 제3항의 어느 한 항에 있어서 ,상기 폴리에스테르계 수지는 방향족 디카르본산과 글리콜의 축중합물로, 폴리 에 틸렌 테레 프탈레이트, 폴리에틸렌 2 , 6- 디 나프탈레이트, 폴리프로필렌 테레프탈레이트, 폴리부틸렌 테레프탈레이트 , 폴리에틸렌 이소프탈레이트 또는 이들의 혼합물이고, 상기 폴리올레핀계 수지는 고밀도 폴리에틸렌, 저밀도 폴리에틸렌 , 폴리프로필렌, 에틸렌-프로필렌 공중합체, 또는 이들의 혼합물인 것을 특징으로 하는 부직포 바인더용 열접착형 복합섬유.
- 제1항 또는 제2항에 있어서,상기 폴리프로필렌 수지는 프로필렌 단목중합체, 프로필렌을 주성분으로 하는 에틸렌, 부텐-1 또는 4-메틸 펜텐-1 등과의 공중합체, 또는 이들의 흔합물인 것을 특정으로 하는 부직포 바인더용 열접착형 복합섬유.
- 제1항 또는 제2항에 있어서,상기 열접착형 복합섬유가 코어-쉬스 정심형태, 코어-쉬스편심형태, 또는 사이드-바이-사이드(side by side) 형태이면서 중공을 갖는 것을 특징으로 하는 부직포 바인더용 열접착형 복합섬유.
- 제l항 내지 제3항의 어느 한 항에 있어서 ,상기 제 1성분이 30~70 중량% 및 제 2성분이 70~30 중량%로 이루어지는 것을 특징으로 하는 부직포 바인더용 열접착형 복합섬유.
- 제2항에 있어서,상기 복합섬유의 단면이 원형중공을 갖는 원형단면 또는 이형중공을 갖는 이형단면인 것을 특징으로 하는 부직포 바인더용 열접착형 복합섬유.
- 제3항에 있어서,상기 이형단면 복합섬유는 코어 내에 중공을 갖는 중공형 복합섬유인 것을 특징으로 하는 부직포 바인더용 열접착형 복합섬유.
- 제3항에 있어서,하기 조건을 만족하는 것을 특징으로 하는 부직포 바인더용 열접착형 복합섬유.여기서,T1 : 중심점(M)으로부터 피크(300)까지의 거리가 가장 큰 값T2 : 중심점(M)으로부터 피크(300)까지의 거리가 가장 작은 값t1 : 중심점(M)으로부터 밸리(310)까지의 거리가 가장 큰 값t2 : 중심점(M)으로부터 밸리(310)까지의 거리가 가장 작은 값CTmax : T1을 기준으로 중심점(M)으로부터 피크(300)까지의 거리가 다음 차순위 큰 값을 갖는 부피제어부(200)의 접선을 연결하여 형성된 원CTmin : T2를 중심점(M)으로부터 피크(300)까지의 거리가 다음 차순위 작은 값을 갖는 부피제어부(200)의 접선을 연결하여 형성된 원Ctmax : t1을 기준으로 중심점(M)으로부터 피크(300)까지의 거리가 다음 차순위 큰 값을 갖는 부피제어부(200)의 접선을 연결하여 형성된 원Ctmin : t2를 중심점(M)으로부터 피크(300)까지의 거리가 다음 차순위 작은 값을 갖는 부피제어부(200)의 접선을 연결하여 형성된 원CTmax-R : CTmax의 중심점(CTmaxM)과 중심점(M)간의 차이값CTmin-R : CTmin의 중심점(CTminM)과 중심점(M)간의 차이값Ctmax-r : Ctmax의 중심점(CtmaxM)과 중심점(M)간의 차이값Ctmin-r : Ctmin의 중심점(CtminM)과 중심점(M)간의 차이값
- 제3항에 있어서,상기 부피제어부는 4 내지 12개가 형성되며, 섬유 단면 면적에서 40 내지 60%로 형성되는 것을 특징으로 하는 부직포 바인더용 열접착형 복합섬유.
- 제1항 내지 제3항의 어느 한 항에 따른 부직포 바인더용 열접착형 복합섬유를 포함하는 것을 특징으로 하는 부직포.
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| KR1020140082296A KR20160004416A (ko) | 2014-07-02 | 2014-07-02 | 탄성 및 벌키성이 우수한 부직포 바인더용 열접착형 복합섬유 |
| KR10-2014-0082296 | 2014-07-02 | ||
| KR1020140120122A KR20160031091A (ko) | 2014-09-11 | 2014-09-11 | 탄성 및 벌키성이 우수한 부직포 바인더용 열접착형 복합섬유 |
| KR10-2014-0120122 | 2014-09-11 | ||
| KR10-2015-0049612 | 2015-04-08 | ||
| KR1020150049612A KR101703348B1 (ko) | 2015-04-08 | 2015-04-08 | 이형단면 복합섬유 및 이를 이용한 섬유집합체 |
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| CN113652765A (zh) * | 2020-05-12 | 2021-11-16 | 现代自动车株式会社 | 具有优异吸声性能的聚酯中空纤维 |
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| KR102378415B1 (ko) | 2018-11-05 | 2022-03-24 | 주식회사 엘지화학 | 이성분계 섬유용 수지 조성물 |
| KR102697900B1 (ko) * | 2022-09-30 | 2024-08-23 | 주식회사아이웰 | 소변진단키트를 내장한 반려동물용 소변패드 |
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| KR20040054607A (ko) * | 2001-11-30 | 2004-06-25 | 데이진 가부시키가이샤 | 잠재 3차원 권축성을 갖는 기계 권축 합성 섬유 및 이의제조 방법 |
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| JPS63264915A (ja) * | 1987-04-15 | 1988-11-01 | Teijin Ltd | 熱接着性中空複合繊維 |
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| KR100284511B1 (ko) * | 1992-11-02 | 2001-03-15 | 이시하라 소이치 | 울트라 벌키 섬유 집합체 및 그 제조방법 |
| KR20040054607A (ko) * | 2001-11-30 | 2004-06-25 | 데이진 가부시키가이샤 | 잠재 3차원 권축성을 갖는 기계 권축 합성 섬유 및 이의제조 방법 |
| JP2005307378A (ja) * | 2004-04-20 | 2005-11-04 | Toray Ind Inc | 芯鞘中空型複合繊維および繊維構造体の製造方法 |
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| CN113652765A (zh) * | 2020-05-12 | 2021-11-16 | 现代自动车株式会社 | 具有优异吸声性能的聚酯中空纤维 |
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| CN113652765B (zh) * | 2020-05-12 | 2024-05-10 | 现代自动车株式会社 | 具有优异吸声性能的聚酯中空纤维 |
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| JP2017526834A (ja) | 2017-09-14 |
| JP2018188792A (ja) | 2018-11-29 |
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