JP2002180383A - Leather-like sheet with silver for sports gloves - Google Patents

Abstract

(57) [Problem] To provide a material which can be suitably used as a material for sports gloves which has good surface smoothness, feels a sense of inclination in the thickness direction, and particularly requires a balance of strength, texture and elongation behavior. provide. A layer (A) composed of ultrafine fibers (a) of 0.01 decitex or less and a layer (B) composed of fine fibers (b) having an average diameter three times or more of the ultrafine fibers (a) are provided.
The elastic polymer is contained in the nonwoven fabric laminated and entangled and integrated in a weight ratio of (A) / (B) = 25/75 to 50/50, and the surface on the (A) layer side has Characterized in that substantially no fibers other than the ultrafine fibers (a) are substantially present, and a resin layer serving as a silver surface layer is provided on the surface thereof. With leather-like sheet.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leather-like leather sheet with silver, which has a soft texture close to that of natural leather and an anti-stretch effect, and has a feeling of fitting to hands when processed into sports gloves. It is about gloves.

[0002]

2. Description of the Related Art Conventionally, artificial leather has been used for various applications, but in particular, artificial leather with silver has no appearance feature because its surface forming method is the same as that of synthetic leather. . The difference between artificial leather and synthetic leather here is
Artificial leather into ultra-fine fibers or non-woven fabrics made of fine fibers,
Whereas a surface is formed using a material impregnated and solidified with an elastic polymer, synthetic leather is a surface formed using a woven fabric, a knit or the like as a base. Therefore, since artificial leather has a nonwoven fabric base, it exhibits a natural leather-like expansion and contraction behavior, and thus has been characterized by a texture closer to that of natural leather. However, although the conventional artificial leather has a fineness variation, the upper to lower layers of the artificial leather are made of fibers of the same fineness. However, when fibers with relatively fine fineness are used, the appearance becomes luxurious, but the touch and texture tend to be paper-like and the tensile strength tends to be low. Actual natural leather consists of fiber bundles of ultra-fine fibers of collagen, and the fiber bundles are separated as the surface gets closer, and ultra-fine fibers are present. are doing. Therefore, several proposals have been made to approach such a structure of natural leather and achieve a more natural leather-like texture.

For example, Japanese Patent Publication No. 48-11925 discloses that two types of different fiber webs are laminated as artificial leather in which one surface is covered with naps of an ultrafine fiber bundle different from the other surface, and needle punching is performed. A method for impregnating and coagulating a non-woven fabric entangled with a polymer elastic material. Japanese Patent Publication No. Sho 60-43476 discloses that a floc made of ultrafine fibers of 0.5 dtex or less is laminated on a base fabric made of a woven fabric or a nonwoven fabric, and a high-pressure liquid flow is jetted from the floc side to be entangled and integrated. A method for producing a suede-like sheet is described. Further, Japanese Patent Publication No. 62-7309 discloses that a web of ultrafine fibers spun by a melt-blowing method and a web of other short fibers are laminated, and an entangled body entangled by a high-speed liquid flow is filled with a polymer elastic body. A method is described. Further, Japanese Patent Publication No. 63-54832 discloses a suede-like artificial leather in which a rubber-like elastic body is interposed in a tissue interval of a structure composed of a microfiber nonwoven fabric layer and a knitted fabric existing between the nonwoven fabric layers. The nonwoven fabric layers on both sides of the woven fabric are composed of different fibers, and a suede-like artificial leather is described which mixes with each other near the knitted fabric but has substantially no fiber mixing in the surface layer portion.

[0004]

However, in the method disclosed in Japanese Patent Publication No. 48-11925, two kinds of webs which have been needle-punched in advance are used because fibers on the other surface are mixed on one surface during needle punching. This is avoided by superimposing and needle-punching again, but there is a feeling of being divided into two layers (discontinuity) when grasping, and a continuous inclination feeling cannot be obtained. In other methods, although there is virtually no mixing of fibers in the surface layer,
Therefore, it was difficult to adjust the high-speed liquid flow, and it was undeniable that there was a sense of discontinuity in the thickness direction. The sense of discontinuity in the thickness direction leads to poor balance, particularly when a silver surface layer is provided on the surface. The present invention provides a silver-coated material that has a good surface smoothness, feels a sense of inclination in the thickness direction, and can be suitably used as a material for sports gloves in which the balance of strength, texture, and elongation behavior is particularly required. It is an object of the present invention to provide a sports glove having excellent fit using the same.

[0005]

Means for Solving the Problems The present inventors have intensively studied a silver-skinned leather-like sheet for sports gloves having a feeling close to that of natural leather and having a feeling of fitting to hands when processed into sports gloves. As a result, the present invention was completed. That is, in the present invention, the layer (A) composed of the ultrafine fibers (a) having a density of 0.01 decitex or less and the layer (B) composed of the fine fibers (b) having an average diameter three times or more the diameter of the ultrafine fibers (a) are provided. , Weight ratio (A) / (B) = 25 / 75-
The nonwoven fabric laminated and entangled and integrated in the range of 50/50 contains an elastic polymer, and the surface of the (A) layer side has substantially no fibers other than the ultrafine fibers (a). A leather-like sheet with silver for sports gloves, characterized in that a resin layer serving as a silver surface layer is provided on the surface of the leather-like sheet. The present invention also includes, as a preferred embodiment, the leather-like sheet with silver for sports gloves having an overall thickness of 0.4 to 0.6 mm. Further, the present invention is a sports glove obtained by cutting and sewing the leather-like sheet so that the direction in which the Young's modulus of the leather-like sheet is highest coincides with the longitudinal direction of the sports glove.

Hereinafter, the present invention will be described in detail. The leather-like sheet with silver constituting the present invention has a web composed of ultrafine fibers of 0.01 decitex or less (may be a fiber that generates such ultrafine fibers) and an average diameter of three times or more thereof. A non-woven fabric obtained by laminating a web of fibers having the following (which may be a fiber capable of generating such fibers) and then entangled with the web, and an elastic polymer impregnated and coagulated with the non-woven fabric: ing. Hereinafter, a non-woven fabric obtained by impregnating and solidifying an elastic polymer is simply referred to as a sheet. The fineness of the fiber (a) constituting the leather-like sheet needs to be 0.01 dtex or less, and preferably in the range of 0.005 to 0.0001 dtex. If it exceeds 0.01 decitex, the surface feel becomes rough, and when a tension is applied to the silver surface layer in the direction of pushing up from the opposite surface, surface irregularities appear and the high-grade appearance is reduced. On the other hand, if it is less than 0.0001 decitex, the strength of the fiber decreases, and the strength of the leather-like sheet tends to decrease, which is not preferable. The fineness of the fiber (b) is at least three times the fineness of the fiber (a), and preferably the fineness is in the range of 1 to 0.001 dtex. Preferably, the fineness of the fiber (b) is a fineness having a diameter at least four times that of the ultrafine fiber (a). When the fineness of the fiber (b) exceeds 1 decitex, although fine fibers are present on the surface, a rough touch tends to be transmitted to the surface touch through the silver surface layer, and is less than 0.001 decitex. Then, the physical properties of the leather-like sheet tend to be low. Further, the fineness of the fiber (b) must be at least three times the average diameter of the fiber (a). If it is less than three times, each fiber itself also has a fineness distribution, so that the fineness difference between the two layers becomes small, and characteristics due to the lamination, for example, the elongation preventing effect is not exhibited. The term "stretch preventing effect" as used herein refers to a recovery rate when a stress is released after being stretched, and is evaluated by a 30% stretching recovery rate (width) specified in JIS L-1096 in the present invention. 30% elongation recovery rate (horizontal)
According to the study of the present inventors, a value suitable for a sports glove is 70 to 90. If it is less than 70, the use of gloves will be repeated, and the elongation will not be fully recovered, which will cause the mold to lose shape. Conversely, if it exceeds 90, the rubber-like elastic behavior is obtained, which is different from the behavior of natural leather.

[0007] As a method for producing ultrafine fibers, a cross section is prepared by a spinning method such as a mixed spinning method or a composite spinning method using two or more kinds of polymers which are not compatible and have different solubility or degradability. Obtain ultrafine fiber-generating fibers having a sea-island structure or a splittable bonded structure, extract or decompose and remove a part of the fiber (for example, sea component), and peel off the bonded portion to obtain an ultrafine fiber. After forming a sheet having a nap structure, a part of the fiber (for example, sea component)
A method of extracting or decomposing and removing ultrafine fibers, or a method of manufacturing a known ultrafine fiber such as a so-called melt blow method, in which the fiber is blown off with a high-speed gas immediately after the fiber-forming polymer is discharged from the melt spinning nozzle to thin the fiber. Although it is possible to control the fiber thickness and the stability of the ultrafine fibers, it is preferable to use the above-mentioned ultrafine fiber generation type fiber.

[0008] The resin constituting the ultrafine fibers is not particularly limited, but polyethylene terephthalate,
Aromatic polyesters such as polybutylene terephthalate, polyethylene naphthalate, and copolymerized polyesters based on these, nylon-6, nylon-6
6, a polymer selected from known resins such as polyamides such as nylon-610 and polyolefins such as polyethylene and polypropylene. Among them, the aromatic polyesters and polyamides are preferable in that natural leather-like artificial leather can be obtained and dyeability is excellent. In addition, a coloring agent such as carbon black may be added to these resins as long as stability during spinning is not impaired.

Examples of the resin component which is extracted or decomposed and removed from the ultrafine fiber-generating fiber include polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, polystyrene, styrene-acryl. Examples include at least one polymer selected from polymers such as a system monomer copolymer, a styrene-ethylene copolymer, and a copolymerized polyester. Among them, polyethylene, polystyrene, copolymers mainly composed of these, and the like are preferable in terms of ease of extraction.

Next, a method for forming a substrate using the above-mentioned ultrafine fibers or ultrafine fiber-generating fibers will be described. As a method of forming a nonwoven fabric, a known method, for example, a step of producing an entangled nonwoven fabric made of ultrafine fiber generating fibers, a step of impregnating and coagulating the entangled nonwoven fabric with an elastic polymer solution,
This can be achieved by sequentially performing the step of modifying the ultrafine fiber-generating fibers into ultrafine fibers. Needless to say, the step of modifying into ultrafine fibers and the step of impregnating and coagulating an elastic polymer may be reversed.

As a method for producing an entangled nonwoven fabric using the ultrafine fiber-generating fiber, the ultrafine fiber-generating fiber is subjected to spinning, drawing, heat treatment, crimping, cutting, and the like by a conventionally known method. A raw cotton of the same fiber is prepared, the raw cotton is defibrated with a card, and formed into a random web or a cross-wrap web with a weber.

At this time, a fiber layer made of the fiber forming the fiber (a) and a fiber layer made of the fiber forming the fiber (b) are laminated. The webs are laminated and brought to the desired weight. The lamination weight ratio of the web composed of each of the fibers (a) and (b) is (a) / (b) = 25/75 to 50
/ 50, more preferably (a) / (b) = 30 /
70-45 / 55. When the weight ratio of (a) is less than 25%, the stretch-preventing effect is reduced, and it is difficult to obtain a fit when processed into sports gloves.
Repeated use may cause the mold to break. If it exceeds 50%, the texture tends to be hard, which is not preferable.

The weight of the fiber per unit area of the laminate after laminating the fiber layer made of the fiber forming the fiber (a) and the fiber layer formed of the fiber forming the fiber (b) The size is appropriately selected depending on the intended field of use of the final sports glove, and is generally 100 to 3000 g.
/ M ² is preferred. For the purpose of cost reduction, etc., an elastic polymer solution is impregnated and coagulated into a nonwoven fabric about twice the required weight, and then divided in the thickness direction with a band knife or the like, so that the nonwoven fabric can be efficiently processed at a time. One piece of substrate can also be manufactured. In this case, (a) / (b)
/ (A) and (b) / (a) / (b). Although not particularly limited, (a) / (b) /
The lamination of (a) is more preferable because a denser surface can be obtained more easily.

After laminating the web, an entangled nonwoven fabric is formed by performing an entanglement treatment using a known means, for example, a needle punching method. The number of needle punches and the conditions for needle punching vary depending on the shape of the needle used and the thickness of the web, but are generally 200 to 2500 punches / cm ^2.
It is better to set within the range. Here, a method of the needle punch will be described. In the following description, (a) and (b) may mean a fiber that forms (a) or a fiber that forms (b). A needle punch typically pierces the needle evenly from both sides of the web and adjusts the piercing depth such that the barb portion of the needle penetrates the web completely to provide sufficient entanglement. However, in the present invention, for the purpose of improving the physical properties of the obtained leather-like sheet, it is important that the needle hit from the surface of the ultrafine fiber (a) hits a depth at which the barb penetrates the laminated web. Usually, the needle is hit to a depth where the barb penetrates the laminated web by about 0 to 5 mm. If the barb does not penetrate, the resulting leather-like sheet will have poor tensile and tear properties,
The effect of improving the physical properties cannot be obtained even if the piercing is performed more than mm. On the other hand, in order to improve the smoothness of the silver surface and the smoothness of the touch, it is essential that the needle hit from the surface (b) hits only to a depth where the barb portion does not penetrate the laminated web. Usually, the needle is hit under the condition that the barb stops just before protruding about 0 to 2 mm. Further, when the piercing depth of the needle is reduced, the physical properties tend to decrease, and when the barb penetrates, fibers having different fineness are mixed on the surface. If the fineness is different, the coloring properties when dyeing are different, and when the obtained leather-like sheet is dyed so as to have the same color as the color of the grain surface layer, the surface becomes mottled. In the present invention, particularly for the purpose of a material for sports gloves, thinness and a soft texture are required, and the thickness of the grain surface layer must necessarily be reduced. Therefore, when tension is applied in a direction to push up from the opposite surface of the obtained leather-like sheet toward the silver surface, the silver surface layer is stretched,
Since the base may be seen through, the appearance may be reduced, which is not preferable. In the above description, the direction of the barb is such that the fiber is brought into the web when the needle is pierced into the web, and conversely, the fiber is brought into the web when the needle is pulled out. If the barb is oriented, the driving depth of the needle may be determined based on the above description.

Prior to the process of containing the elastic polymer, the surface of the entangled nonwoven fabric may be subjected to a smoothing treatment by a known method such as hot pressing, if necessary. When the fiber constituting the entangled nonwoven fabric is a sea-island type ultrafine fiber-generating fiber having, for example, polyethylene as a sea component and polyester or polyamide as a very fine island component, the sea component polyethylene is melted by hot pressing, The fusion of the fibers is particularly preferable because an entangled nonwoven fabric having extremely excellent surface smoothness can be obtained. In addition, when the fibers constituting the entangled nonwoven fabric are not multicomponent fibers that can be dissolved and removed as one component to be modified into ultrafine fibers, the elastic polymer contained therein is prevented from sticking to the fibers and hardening the hand. For this purpose, it is preferable to cover the fiber surface with a temporary filling material such as polyvinyl alcohol prior to the impregnation treatment, and to remove the temporary filling material after applying the elastic polymer. Also in the case where the ultra-fine-graining step is performed after the step of impregnating and coagulating the elastic polymer, a more flexible sheet can be obtained by applying the temporary filling substance at the stage of the entangled nonwoven fabric.

As the elastic polymer to be contained in the entangled nonwoven fabric, known polymers can be used, but it is preferable to use a polyurethane resin from the viewpoint of hand. Preferred polyurethane resins are selected from the group consisting of polyester-based diols, polylactone-based diols, polycarbonate-based diols, and polyether-based diols obtained by reacting a diol with a dicarboxylic acid or an ester-forming derivative thereof as a soft segment. A so-called segmented polyurethane obtained by using at least one kind of polymer diol having a number average molecular weight of 500 to 5,000 and reacting this with a diisocyanate compound and a low molecular chain extender is used.

The diol compound constituting the soft segment is preferably a compound having 6 to 10 carbon atoms in terms of durability or leather-like texture.
Examples thereof include 3-methyl-1,5-pentanediol, 1,6-hexanediol, 2-methyl-1,8-octanediol, 1,9-nonanediol, and 1,10-decanediol. Representative examples of dicarboxylic acids include aliphatic dicarboxylic acids such as succinic acid, glutaric acid, adipic acid, azelaic acid and sebacic acid, and aromatic dicarboxylic acids such as terephthalic acid and isophthalic acid.

The number average molecular weight of the polymer diol is 500
If it is less than 10%, it is not preferable because it lacks flexibility and a natural leather-like texture cannot be obtained. When the number average molecular weight of the polymer diol exceeds 5,000, the urethane group concentration decreases, and it is difficult to obtain a well-balanced composition in flexibility, durability, heat resistance and hydrolysis resistance.
Examples of the diisocyanate compound include diphenylmethane-4,4′-diisocyanate, tolylene diisocyanate, isophorone diisocyanate, hexamethylene diisocyanate, dicyclohexylmethane-4,
4'-diisocyanate and the like. Examples of the low molecular chain extender include ethylene glycol, propylene glycol, butanediol, hexanediol,
Low-molecular compounds having two active hydrogen atoms having a molecular weight of 300 or less, such as N-methyldiethanolamine and ethylenediamine, may be mentioned. If necessary, a coagulation regulator, a stabilizer and the like may be added to the elastic polymer, and two or more polymers may be used in combination. Further, a coloring agent such as carbon black may be added.

The method of incorporating the elastic polymer into the entangled nonwoven fabric is not particularly limited, but from the viewpoint of the balance of the texture, a method of directly impregnating the entangled nonwoven fabric with the elastic polymer solution and, if necessary, squeezing with a mangle. Also, a method of impregnating an elastic polymer solution while coating it with a coater is preferable. Further, from the viewpoint of a natural leather-like soft texture, the weight ratio between the fibers constituting the nonwoven fabric (the fibers after the ultrafine fiber treatment in the case of the ultrafine fiber generating fibers) and the elastic polymer is 20/80 to 95/95. / 5 is preferred, and more preferably in the range of 25/75 to 90/10. If the ratio of the fibers is too low, the leather-like sheet has a rubber-like texture, which is not preferable. If the ratio of the fibers is too high, the texture becomes a paper-like texture, and the target natural leather-like texture cannot be obtained.

After the elastic polymer is contained in the entangled nonwoven fabric, a liquid which acts as a non-solvent for the island component of the elastic polymer and the microfiber-generating fiber and acts as a solvent or decomposer for the sea component. To convert the microfiber-generating fibers into microfiber bundles to obtain a sheet comprising a microfiber entangled nonwoven fabric and an elastic polymer. Needless to say, the sheet may be formed by a method of modifying the ultrafine fiber-generating fibers into an ultrafine fiber bundle prior to containing the elastic polymer.

The surface of the obtained sheet made of the entangled nonwoven fabric of ultrafine fibers and the elastic polymer may be used as it is on a surface with silver as it is, but buffing and hair styling are performed for the purpose of improving the smoothness of the silver surface. It is preferable to smooth the particles by a known method such as the above. In addition, the thickness is preferably 0.4 to 0.6 mm in terms of texture and strength. If it is less than 0.4 mm, the tensile properties and wear properties are reduced, and the value is less than 0.4 mm.
If it exceeds 6 mm, the texture is hard, and it is not suitable as a material requiring a delicate grip feeling, such as a golf glove. Regarding the adjustment of the thickness, there are a method of adjusting the basis weight of the web and the amount of the elastic polymer impregnated so as to have a desired thickness, and a method of adjusting the thickness by buffing a thick sheet with a buff. However, since the leather-like sheet with silver of the present invention has a structure in which fibers having different finenesses are laminated, the leather-like sheet is also configured when one surface is shaved off by buffing or the like for thickness adjustment. Fiber (a), (b)
Is required to be within the range of 25/75 to 50/50 as described above.

Next, a method of providing a silver surface layer on the sheet obtained as described above will be described. The method for providing the silver surface layer is not particularly limited, and can be performed by a known method. For example, a coating layer forming material such as a polyurethane composition solution is applied onto a sheet by a method such as gravure and solidified to form a coating layer. A coating layer is formed by bonding a porous layer or a non-porous layer of a polymer mainly composed of an elastic polymer such as polyurethane formed on a support such as release paper to a sheet. A coating layer is formed by laminating a porous or non-porous film, a melt blown nonwoven fabric, or the like to a sheet. Further, if necessary, finishing treatment such as embossing treatment, softening, and dyeing is performed to obtain a leather-like sheet with silver. Since the thickness of the grain surface layer has a large effect on the texture of the obtained leather-like sheet, it is preferable that the thickness is small. For example, in the case of a dry-formed surface, at least two layers, a skin layer and an adhesive layer, are stacked on the silver surface layer. The thickness at which the silver layer is finally formed, that is, in this example, the total thickness of the skin layer and the adhesive layer is preferably 15 to 100 μm. 30-70 microns is more preferred. If the thickness is less than 15 microns, the surface strength is lowered, and the amount of resin in the adhesive layer is inevitably reduced. Conversely, if it exceeds 100 microns, the texture becomes hard.

Next, a method of processing the leather-like sheet into sports gloves will be described. Cutting and sewing of glove parts are performed by a generally used method. The leather-like sheet of the present invention may be used for any part of a glove,
Also, it may be used entirely. However, in order to take advantage of the anti-stretch effect and express a feeling of fit to the hand,
It is preferably used for parts cut from the wrist to the index finger, and is preferably used for parts on the back side of the hand, which is under tension during use.

When the leather-like sheet is processed into sports gloves, it is preferable that the direction in which the Young's modulus of the leather-like sheet is highest coincides with the longitudinal direction of the sports glove. . In general, the direction in which the leather-like sheet has the highest Young's modulus coincides with the traveling direction during production. As described above, artificial leather tends to have a high Young's modulus because tension is applied in the traveling direction at the time of production, and the Young's modulus tends to decrease in a direction at 90 degrees to the traveling direction. It should be noted that “substantially coincident” here means that the angle is within a range of an angle of 30 degrees even if it is shifted. When gripping a golf club, baseball bat, or the like while wearing sports gloves, cut and sew the leather-like sheet so that the direction of the highest Young's modulus of the leather-like sheet matches the longitudinal direction of the glove, which is the direction in which the gloves are most stretched. By
It does not stretch more than necessary and gives a feeling of fitting to the hand.
Conversely, cut the glove parts so that the vertical direction of the glove and the direction with the highest Young's modulus of the leather-like sheet are shifted by 90 degrees,
When sewn, the finger portion of the glove becomes tight and hard to bend, and the glove as a whole stretches and loses its shape, and a fit cannot be obtained.

The leather-like sheet with silver obtained as described above has a smooth and high-grade appearance, has an effect of preventing elongation, and is suitable as a material for sports gloves. ) Using a surface with a silver layer on the outside and cutting and sewing the leather-like sheet so that the direction of the highest Young's modulus of the leather-like sheet matches the longitudinal direction of the glove, sports gloves with a high fit can be obtained. can get.

[0026]

EXAMPLES Next, the present invention will be described with reference to specific examples, but the present invention is not limited to these examples. The parts in the examples relate to weight unless otherwise specified. 30% elongation recovery rate (horizontal)
It is measured according to L-1096, and the direction perpendicular to the direction of progress during the production of the substrate is defined as the horizontal direction. The thickness is J
It is measured by the method shown in IS L-1096 and is 2
This is the thickness under a load of 40 g / cm ² . The appearance was evaluated by the inventors with emphasis on the smoothness of the surface, and expressed as good: 、, normal: Δ, and poor: x.

Fiber Production Example Nylon-6 and polyethylene in a state of a chip in a ratio of 50: 5
When the mixture is mixed at a weight ratio of 0 and melt-spun with an extruder to spin the mixed sea-island cross-section spun fiber of polyethylene as the sea component, the relative viscosity of nylon is set to 3.2, 2.6, 2.1, and Stretched, crimped and cut the resulting fiber to 4 dte
x, short fiber having a length of 51 mm was produced. The prepared short fibers are referred to as fiber A, fiber B, and fiber C, respectively. The number of nylon islands was counted from the electron micrograph of the cross section of the obtained fiber, and the average fineness was calculated. Average fineness = spun fiber fineness ÷ 2 ÷ number of nylon islands As a result, the average fineness of each of the fibers A, B, and C is 0.
003dtex, 0.006dtex, 0.12dte
x.

Example 1 After the fibers A and C obtained in the fiber production example were laminated at a weight ratio of 30/70, the fibers A and C were mixed using a needle punching machine.
Needle punching of 0 punch / cm ² was performed to obtain an entangled nonwoven fabric. At this time, the needle is punched under the condition that the barb penetrates the piercing depth of the needle formed from the surface composed of the fiber A by 4 mm, and the piercing depth of the needle pierced from the surface composed of the fiber C is 0.5 mm.
Needle punching was performed under the condition of hitting to the near side. Fiber A
Surface and the number of punches from the fiber C surface were each 350 punches / cm ² . The fibrous sheet is impregnated with a dimethylformamide solution of a poly (3-methylpentane adipate / polyethylene glycol copolymer polyurethane resin) and wet-coagulated, and then polyethylene, which is a sea component of the fiber, is extracted with toluene at 80 ° C. 160 g / m ² ,
0.5mm thick, polyurethane resin and fiber ratio is 30 /
70 sheets were obtained. After buffing and smoothing the surface of the obtained sheet made of fiber A with sandpaper,
Dye (Kayakaran Black 2RL) was subjected to core dyeing and relaxation treatment in hot water of 10%. Subsequently, on the surface of the dried substrate composed of the microfibers (a), a polyurethane mainly composed of a polyurethane obtained by polymerization from polycarbonate diol, polytetramethylene glycol, polyethylene glycol, and 4,4′-dicyclohexylmethane diisocyanate is applied. Then, a polyurethane composition solution to which black was added by adding carbon black was applied on release paper and dried to obtain a film having a thickness of 15 μm. Then, a mixture of a two-component polyurethane, a polyisocyanate curing agent, an amine-based catalyst, and a solvent as a bonding layer is applied thereon at a solid content of 20 g / m ² , dried, and dried to obtain a tacky state immediately after drying. The sheet was pressed and laminated. Then 6
After leaving at 0 ° C. for 48 hours, the release paper was peeled off to obtain artificial leather with silver and silver. The obtained leather-like sheet with silver is
It had a smooth, luxurious appearance and a soft texture. Table 1 shows the results.

Example 2 A leather sheet with silver was obtained in the same manner as in Example 1 except that the fibers B and C obtained in the fiber production example were laminated at a weight ratio of 70/30. The obtained leather-like sheet with silver is
It had a smooth, luxurious appearance and a soft texture. Table 1 shows the results.

Example 3 The fiber B and the fiber C obtained in the fiber production example are laminated at a weight ratio of 45/55, and the piercing depth of the needle is set to the piercing depth of the needle struck from the surface composed of the fiber B. Was needle-punched under the condition that the barb penetrated 3 mm, and the needle was punched under the condition that the barb was punched to a depth of 0.5 mm before penetrating the needle at the penetration depth from the surface composed of the fiber C. Example 1 except that the number of punches from the fiber B side and the fiber C side was 350 punches / cm ² each.
A leather-like sheet with silver was obtained in the same manner as described above. The obtained leather-like sheet with silver had both a smooth and luxurious appearance and a soft texture. Table 1 shows the results.

Comparative Example 1 A leather-like sheet with silver was obtained in the same manner as in Example 1 except that only the fiber A obtained in the fiber production example was used. The obtained leather-like sheet with silver had a smooth and high-grade appearance, but had a paper-like texture. Table 1 shows the results.

Comparative Example 2 A leather-like sheet with silver was obtained in the same manner as in Example 1 except that only the fiber C obtained in the fiber production example was used. Although the obtained leather-like sheet with silver had a smooth and high-grade appearance and a soft texture, it was hard to recover when stretched. Table 1 shows the results.

Comparative Example 3 A leather-like sheet with silver was obtained in the same manner as in Example 1 except that the fiber A and the fiber B obtained in the fiber production example were laminated at a weight ratio of 30/70. The obtained leather-like sheet had a smooth and high-grade appearance, but had a slightly hard texture. Table 1 shows the results.

[0034]

[Table 1]

Glove Production Examples 1 to 6 The leather-like sheets with silver obtained in Examples 1 to 3 and Comparative Examples 1 to 3 were prepared such that the direction in which the Young's modulus was highest coincided with the longitudinal direction of the glove. , Cut. Sewing was performed in Comparative Example 1,
Except for the leather-like sheet with silver obtained in Step 2, the surface composed of finer fibers was turned outward to produce a glove. Table 2 shows each evaluation.

Glove Production Examples 7 to 9 The leather-like sheets with silver obtained in Examples 1 to 3 were cut so that the direction in which the Young's modulus was highest and the longitudinal direction of the gloves crossed at right angles. The sewing was performed with the surface made of the finer fibers facing outward, thereby producing a glove. Table 2 shows each evaluation.

[0037]

[Table 2]

[0038]

The leather-like sheet with silver obtained according to the present invention has good surface smoothness, feels a sense of inclination in the thickness direction, and is particularly excellent in the balance of strength, texture, and elongation behavior. It is a material that can be suitably used as a material, and sports gloves using it are excellent in fit.

Claims (3)

[Claims] 1. A layer (A) composed of ultrafine fibers (a) having a density of 0.01 decitex or less and a layer (B) composed of fine fibers (b) having an average diameter three times or more the diameter of the ultrafine fibers (a). ,
The elastic polymer is contained in the nonwoven fabric laminated and entangled and integrated in a weight ratio of (A) / (B) = 25/75 to 50/50, and the surface on the (A) layer side has Characterized in that substantially no fibers other than the ultrafine fibers (a) are substantially present, and a resin layer serving as a silver surface layer is provided on the surface thereof. With leather-like sheet. 2. The method according to claim 1, wherein the thickness is 0.4 to 0.6 mm.
A leather-like sheet with silver for sports gloves as described. 3. A sports glove obtained by cutting and sewing the leather-like sheet according to claim 1 such that the direction having the highest Young's modulus coincides with the longitudinal direction of the sports glove.