JPH0137957B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to artificial leather golf gloves. More specifically, the present invention relates to artificial leather golf gloves that have good golf club grip and fit. Conventionally, natural leather has been mainly used for golf gloves, but the ones with good grip and fit tend to tear easily, become black due to friction with the grip and sweat from the hands, and are difficult to wash. However, there has been a need for a better material for golf gloves. On the other hand, in recent years, suede-like types of artificial leather have been used as golf gloves, and they have certainly improved functionality, such as being less likely to tear and being washable. However, in terms of the essential fit with the grip of a golf club (regardless of whether it is made of rubber or leather), it is still slippery and inferior, so there is a need for even better materials. An object of the present invention is to provide an artificial leather golf glove that has excellent fit with such a grip. Moreover, the present invention provides artificial leather golf gloves that are excellent in appearance quality, softness, and suppleness. The golf gloves of the present invention that achieve this purpose include:
A silver surface formed by a composite mainly consisting of a fiber structure in which ultrafine fibers of 0.05 denier or less and/or bundles thereof have a distance between fiber entanglements of 200 microns or less, and a resin existing in the voids thereof. layer on at least one side, and the lower layer of the grain layer is mainly entangled with ultrafine fiber bundles, and the grain layer is mainly composed of ultrafine fibers branched from the lower layer ultrafine fiber bundles and/or bundles thereof. The fibers in the lower layer and the grain layer are substantially continuous, and the boundary between the two layers shows the grain layer of the grain-covered artificial leather in which the degree of branching changes continuously. This is an artificial leather glove for golf, which is made by sewing. Hereinafter, the artificial leather golf glove of the present invention will be explained in more detail. That is, the artificial leather golf glove of the present invention has a fibrous grain layer in which ultrafine fibers branched from an ultrafine fiber bundle and/or bundles thereof are densely intertwined, and a resin is present in the voids. Because it comes into contact with the grip of a glove, it has a completely different fit than conventional silver-finished artificial leather with a silver surface layer of polyurethane film or suede-like artificial leather with a napped layer of ultra-fine fibers, especially the fit that sticks to the grip. It shows one's sexuality. Moreover, since the fiber itself is continuous with the grain layer inside, it has good resistance to peeling of the grain surface or tearing due to shearing, and since it is made of artificial leather, it can be washed easily, making it an excellent product. They become golf gloves. The ultrafine fibers of 0.05 denier or less used in the present invention are preferably ultrafine fiber-forming fibers described below, which are modified into ultrafine fibers at an appropriate time during the processing process. That is, the ultrafine fiber-forming fiber used in the present invention is, for example, a fiber made by converging ultrafine fibers immediately after spinning and lightly adhering them into a single fiber, or a fiber in which one component is radially interposed between other components. Fibers with a chrysanthemum-shaped cross section, multilayer bimetallic fibers, multilayer bimetallic fibers with a donut-shaped cross section, sea-island fibers made by melt-mixing two or more components and spinning them together, a large number of ultrafine fibers that are continuous in the fiber axis direction, and other fibers. Polymer mutual array fibers that are bonded and/or partially bonded by components to form one fiber, etc.
Two or more types of these fibers may be mixed or used in combination. Ultrafine fiber-forming fibers having a cross section in which multiple cores are interveningly bonded and/or partially bonded by other components can be relatively easily made into ultrafine fibers by applying physical action or removing bonded components. It is preferably used because it can be used.
In addition, ultrafine fiber-forming fibers made of multicomponents that, when at least one component is dissolved and removed, yield a bundle of fibers consisting mainly of ultrafine fibers, preferably 0.05 denier or less, more preferably 0.001 or less, have a particularly supple texture, It is more preferably used because it yields a leather-like sheet material with a smooth surface.
Further, the ultrafine fiber in the present invention is made of a polymeric substance having fiber-forming ability, such as nylon 6,
Polyamides such as nylon 66, nylon 12, copolymerized nylon, polyesters such as polyethylene terephthalate, copolymerized polyethylene terephthalate, polybutylene terephthalate, copolymerized polybutylene terephthalate, polyolefins such as polyethylene and polypropylene, polyurethane, polyacrylonitrile and vinyl polymers, etc. can be given. In addition, examples of the bonding component or the dissolving and removing component of the microfiber-forming fiber include polystyrene, polyethylene, polypropylene, polyamide, polyurethane, copolymerized polyethylene terephthalate that is easily soluble in alkaline solutions, copolymerized polyvinyl alcohol, and copolymerized polyvinyl alcohol. Alcohol, styrene-acrylonitrile copolymer, copolymer of styrene and higher alcohol ester of acrylic acid and/or higher alcohol ester of methacrylic acid, etc. are used. Polystyrene, styrene-acrylonitrile copolymers, and copolymers of styrene and higher alcohol esters of acrylic acid and/or higher alcohol esters of methacrylic acid are preferably used in terms of ease of spinning and ease of dissolution and removal. Furthermore, a copolymer of styrene and a higher alcohol ester of acrylic acid and/or a higher alcohol ester of methacrylic acid is more preferably used because it can obtain a fiber with a high draw ratio and high strength.
Further, in order to make the ultrafine fibers easier to branch, it is preferable to use a mixture of 0.5 to 30% by weight of a polymer such as polyethylene glycol in the binding component or the dissolving and removing component. The fineness of such microfiber-forming fibers is not particularly limited, but is preferably 0.6 to 10 deniers from the viewpoint of stability during spinning and ease of sheet formation. The ultrafine fibers in the grain layer of the present invention have a fineness of
It is preferably 0.05 denier or less. If the fiber is thicker than 0.05 denier, the rigidity of the fiber is too high, which not only impairs the flexibility of the grain layer and the form of wrinkles on the surface, but also makes it more likely to crack when rubbed, resulting in unevenness on the surface, making it dense and supple. It is difficult to form a silvery surface layer. By using ultrafine fibers, preferably 0.05 denier or less, more preferably 0.001 denier or less, the fibers can be tightly intertwined, and the silver is smooth, flexible, and resistant to cracks and fits comfortably in the hand. A leather-like sheet material having a surface layer is obtained. The fiber structure in the grain layer of the leather-like sheet of the present invention requires that ultrafine fibers and/or bundles thereof are densely intertwined with each other. In other words, the fiber entanglement density is high. One way to measure the fiber entanglement density is to measure the distance between fiber entanglement points, which will be described later, but the fibers in the grain layer have an entanglement density of 200μ or less as measured by this method. It is necessary. This value
Those with a structure larger than 200 μ, for example, those with a fiber structure with little entanglement in which fibers are entangled only by needle punching, or those with a structure in which ultrafine fibers or bundles thereof are simply arranged in a plane, or those with a structure in which ultrafine fibers or bundles thereof are arranged in a plane. Materials with a structure in which the surface is created by forming a dense fluff-like fluff on the surface of the base material have little or no entanglement of fibers, so the surface becomes fluffy or cracks when subjected to abrasion, kneading, repeated shearing force, etc. This is not desirable because it tends to cause In order to eliminate these drawbacks, the distance between fiber entanglement points must be 200μ or less. More favorable results can be obtained when the thickness is 100μ or less. Here, the distance between fiber entanglement points is a value obtained by the following method, and is a measure of the denseness of fiber entanglement, and the smaller the value, the more dense the entanglement. . FIG. 1 is an enlarged schematic diagram of the constituent fibers in the grain layer when observed from the surface side. The constituent fibers are f ₁ , f ₂ , f ₃ ,
...and the point where any two fibers f ₁ and f ₂ intertwine is a ₁ , and the fiber on top at a ₁
Trace the point where f ₂ intersects below the other fibers, and call the intersecting point a ₂ (intersection point of f ₂ and f ₃ )
shall be. Similarly, let a ₃ , a ₄ , a ₅ , .... Next, the linear horizontal distance a ₁ a ₂ between the intersecting points found in this way,
a ₂ a ₃ , a ₃ a ₄ , a ₄ a ₅ , a ₅ a ₆ , a ₆ a ₇ , a ₇ a ₃ , a ₃ a ₈ ,
Measure a ₈ a ₇ , a ₇ a ₉ , a ₉ a ₆ , . . . , find the average value of these many measured values, and use this as the distance between fiber entanglement points. In addition, the lower layer of the grain layer is mainly entangled with ultrafine fiber bundles, and the ultrafine fibers and/or bundles thereof in the grain layer are branched ultrafine fiber bundles in the lower layer and further entangled, A golf glove with a fiber structure in which the fibers are substantially continuous in the grain layer and the lower layer, and the degree of branching changes continuously at the boundary between the two layers provides a golf glove with a unified feel. It is preferably used because the silver surface layer and the lower layer do not peel off. Here, the thickness of the ultrafine fiber bundles in the grain layer does not need to be the same for all bundles, but is as thin as possible compared to the thickness of the bundle in the lower layer (the main body of the fibers contained in the bundle is in the bundle in the lower layer). It is preferable that the surface of the sheet is less likely to have unevenness on the surface of the sheet. In addition, conventional golf gloves made from leather-like sheets that use nonwoven fabric as the base material are easy to stretch due to external force and are difficult to return to their original shape because the deformation is plastic. ,
To prevent this, resin has been applied to the base material. However, the golf glove of the present invention, which has a fiber structure in which ultrafine fibers and/or bundles thereof are densely intertwined, does not stretch abnormally even if no resin is added to the lower layer, and has good shape retention. be. This is also a major feature of the present invention. Of course, a resin such as a polyurethane elastomer may be applied to the lower layer, and the amount of resin applied varies depending on the intended use of the sheet material. When used for golf gloves, the amount applied is preferably 0 to 50 parts based on the weight of the fiber. Examples of the resin used for the silver layer include polyamide, polyester, polyvinyl chloride, polyacrylate copolymer, polyurethane, neoprene, styrene-butadiene copolymer,
Synthetic resins or natural polymer resins such as acrylonitrile butadiene copolymers, polyamino acids, polyamino acid polyurethane copolymers, silicone resins,
Or a mixture of these resins. Furthermore, if necessary, plasticizers, fillers, stabilizers, pigments, dyes, crosslinking agents, etc. may be added. Polyurethane resins or polyurethane resins to which other resins and additives are added are preferably used because they yield a grain layer that has a particularly soft texture and touch and has good bending resistance. There are no particular restrictions on the adhesion structure of the resin on the grain layer, and it can vary depending on the purpose, but if flexibility and soft feel are particularly required, the closer the surface of the grain layer is, the more resin will adhere. those with a structure that
Items with a structure in which the very thin layer on the outermost surface of the silver layer has a particularly large amount of resin attached, and the rest have no resin attached at all or only a small amount of resin attached, or resin on the surface part. It is preferable that the structure is non-porous and the rest is porous. Also,
If particularly high scratch resistance is required, a structure in which the voids in the grain layer are almost completely filled with resin is preferred. The method of constructing the golf glove of the present invention includes:
First, the ultrafine fiber-forming type fibers, for example,
It is manufactured using the spinning apparatus shown in Japanese Patent No. 18369, stapled, passed through a card and a cross wrapper to form a web, and then needle punched to entangle the ultrafine fiber-forming fibers to form a fiber sheet. Alternatively, following the spinning of the microfiber-forming fibers, they are stretched and placed randomly on a wire mesh, and the obtained web is needle punched in the same manner as described above to form a fiber sheet. Alternatively, the ultrafine fiber-forming fibers are placed on a nonwoven fabric, woven fabric, or knitted fabric made of ordinary fibers or other ultrafine fiber-forming fibers, and the fibers are entangled and inseparably integrated to form a fiber sheet. Next, the fiber sheet thus obtained is brought into contact with a high-speed fluid stream to cause the portion corresponding to the grain layer to branch into ultrafine fibers and/or bundles thereof, and at the same time to intertwine them densely. The fluid referred to here is a liquid or a gas, and in special cases, it may contain extremely fine solids.
Water is most preferably used in terms of ease of handling, cost, and amount of collision energy as a fluid.
Furthermore, depending on the purpose, various organic solvents capable of dissolving some components of the ultrafine fiber-forming fibers, or aqueous solutions of alkalis or acids such as sodium hydroxide can also be used. These fluids are pressurized and injected from small-diameter nozzles or narrowly spaced slits to form a high-speed columnar or curtain-like flow, which is brought into contact with the fiber sheet to branch and entangle the fibers. The pressure applied to the liquid varies depending on the ease with which the ultrafine fiber-forming fiber or ultrafine fiber bundle branches. For fibers that are easy to branch, a relatively low pressure of 5 to 70 kg/cm ² may be sufficient, but for fibers that are difficult to branch. For fibers, high pressures of 70-300 Kg/cm ² are required. It is also possible to increase the degree of branching and entanglement by increasing the number of contacts, and the pressure may be changed each time the contacts are made.
Thereafter, if necessary to make the used ultrafine fiber-forming fibers ultrafine, the obtained fiber sheet is treated with a solvent that dissolves some components of the ultrafine fiber-forming fibers. Dissolve and remove the solids. Further, if necessary, it is impregnated with a solution or dispersion of a resin such as a polyurethane elastomer and coagulated by a wet or dry method. Here, the part of the component may be dissolved and removed before the treatment with the high-speed fluid flow, and in this case, by dissolving and removing the part of the component, the ultrafine fiber-forming fiber of the fiber sheet becomes the ultrafine fiber. This is a preferred method because it is transformed into bundles and can be easily and highly branched and entangled at low fluid pressures. Furthermore, high-speed fluid flow treatment may be performed before and after the step of dissolving and removing the partial components. In addition to the above, the step of applying the resin can also be carried out between the high-speed fluid flow treatment step and the step of dissolving and removing some components of the fibers. It is necessary that the applied resin does not dissolve in the solvent used for dissolving and removing it, but a space where some of the components were present may be created between the ultrafine fiber bundles of the obtained fiber sheet and the resin, causing mutual interaction. This is a preferred method for making the texture more flexible as it increases the degree of freedom of movement. On the other hand, performing a high-speed fluid flow treatment after applying the resin is not a preferable method because when a large amount of resin is applied, the fibers are bound by the resin, so branching and entangling are hardly performed. Thereafter, the solution or dispersion of the resin for the grain layer described above is applied to the layer of the obtained fiber sheet in which the ultrafine fibers and/or their bundles are intertwined by reverse roll coating, gravure coating, knife coating, slit coating, spraying, etc. The resin is applied by the method described above, solidified using a wet or soft method, placed on a roll surface or sheet surface, pressed, and heated as necessary to integrate the fibers and resin and at the same time smooth the surface. Here, it is also a preferable method to subject the fiber sheet to a treatment such as pressing to smooth the surface before applying the resin. At this time, it is preferable to use an emboss roll or a textured sheet with a textured pattern on the surface because integration, smoothing, and texture formation can be performed at the same time. Furthermore, treatments such as applying a finishing agent, dyeing, and rubbing may be performed as necessary. In the golf glove of the present invention, the drape coefficient is
0.3 to 0.7 is preferred. Within this range, durability,
An extremely good fit can be obtained.
The drape coefficient here is a value measured according to the method of JIS-L-1096. Drapability is determined by the degree of branching and entanglement of the ultrafine fiber-generating fibers, the presence or absence of binder resin and its application method (dry or wet), the amount and type of binder resin, the amount of resin for the grain layer, Control is possible by appropriately selecting the type, etc. Moreover, the golf glove of the present invention preferably has a thickness of 0.3 to 1.5 mm with a load of 50 g/cm ² (round shape). Furthermore, the golf glove of the present invention is made by sewing the above-mentioned artificial leather with the grain layer facing up as shown in FIG. If the grain layer is not exposed, it is undesirable because, like conventional suede-like artificial leather, it becomes slippery and difficult to fit. Those with holes in the fingers are preferable because they allow ventilation and sweat to escape. The examples shown below are intended to clarify the present invention, and the present invention is not limited thereto. Example 1 95 parts of polystyrene and 5 parts of polyethylene glycol
45 parts of a mixture of 5 parts as a binding component and 55 parts of polyethylene terephthalate as an ultra-fine fiber component.
A nonwoven fabric was made in the same manner as in Example 1 using a 3.8 denier, 51 mm piece. The purpose of this nonwoven fabric was 400 g/m ² and the thickness was 2.0 mm. One side of this nonwoven fabric was brought into contact with a columnar flow of water injected at a pressure of 100 kg/cm ² using a nols with holes of 0.1 mm diameter arranged in a row at 0.6 mm pitch, and the pressure was applied 5 times under the same conditions. Two treatments were carried out at a lower concentration of 30 Kg/cm ² . Furthermore, they were placed in hot water at 95°C for shrinkage treatment and mangle nips. The thickness of the obtained intertwined nonwoven fabric was reduced to about 1.2 mm, and the layer of about 1/4 of the thickness from the water-treated surface was made of ultrafine fibers with an average fineness of about 0.001 denier branched from the polymeric mutual array fibers and their The bundles were mainly densely intertwined, and the surface had very few irregularities. Next, after slicing into 0.8 mm pieces, a paint made by adding carbon black and dye to a polyurethane solution is applied to the surface layer of the water-treated side using a gravure coater, dried, and pressed to integrate to form a composite and grain. I did the molding. Furthermore, polystyrene and polyethylene glycol were dissolved and removed using trichlorethylene, the other side was buffed to fluff the ultrafine fibers, and then dyed at a high temperature of 120°C using a disperse dye and finished as usual. The thickness was approximately 0.7 mm. Furthermore, golf gloves as shown in Fig. 2 were sewn from the artificial leather of the present invention, a commercially available napped type suede-like artificial leather, and a silvered artificial leather having a thin polyurethane layer as a silver surface.
As shown in the table, the artificial leather golf glove of the present invention exhibited the most excellent properties, especially the fit with the grip.

[Table] After removing the polyurethane and finishing agent from the silver layer of the golf glove of the present invention, the average distance between fiber entanglement points of the constituent fibers was measured and found to be 98μ. Further, the drape coefficient of this example was 0.45. Example 2 A vinyl polymer (hereinafter referred to as AS resin) copolymerized with 20 parts of 2-ethylhexyl acrylate and 80 parts of styrene was used as a bonding component, and nylon 6 was used as a microfiber component in a ratio of 40 parts. 4.0 denier of polymer interlayer array fibers as shown in Japanese Patent Publication No. 1983-37648, which has 16 island components in the filament and further contains many ultrafine fiber components of 0.001 to 0.0003 denier. A web was formed through a card cross wrapper using 51 mm staples, and then needle punched using a needle with one hook to entangle the polymeric interlayer fibers to form a nonwoven fabric. The nonwoven fabric had a basis weight of 405 g/m ² and an apparent density of 0.20 g/cm ² . The four types of sheets shown in Table 2 are produced by contacting the surface of a nozzle with a high-speed jet of water while rocking the nozzle, in which holes with a diameter of 0.1 mm are arranged in a row with a pitch of 0.6 mm between the centers of the holes. Ivy. The obtained sheet had a fiber structure in which the surface layer of mutually arranged polymer fibers branched into ultrafine fibers or bundles thereof, and were densely intertwined with each other. Next, for only sheet D in Table 2, 7% dimethyl polyurethane was prepared by chain-extending a prepolymer of mixed diol of polyethylene adipate and polybutylene adipate and p,p'-diphenylmethane diisocyanate with ethylene glycol. It was impregnated with a formamide (hereinafter referred to as DMF) solution, the liquid adhering to the surface was removed with a scraper, and the material was introduced into water and solidified. Thereafter, the DMF was removed by thorough washing in hot water at 80°C. Next, from the surface of these four types of sheets, a solution of a 10% solution of polyurethane, which has the same composition as the polyurethane used for impregnation but is slightly harder, and a pigment added thereto, was applied using a gravure coater, and after drying. It was passed through a heated embossing roll and pressed to emboss a leather-like grain model. Next, the resin was immersed in trichlorethylene, and the immersion and squeezing were repeated to almost completely extract and remove the AS resin, followed by drying to evaporate and remove the remaining trichlorethylene. Furthermore, it was dyed using a jet dyeing machine under normal pressure, and finishing processing was performed using a conventional method. The thickness of all four types of sheets is approximately
It was 0.5mm. The drape coefficients of these four types of sheets, the fit to the grips of golf gloves made of these sheets, the appearance, and the durability were as follows.

【table】 [Brief explanation of drawings]

FIG. 1 is an enlarged schematic view of the constituent fibers in the grain layer on the surface of the artificial leather golf glove of the present invention when observed from the surface side. FIG. 2 is a conceptual diagram of the artificial leather golf glove of the present invention.

Claims (1)

[Claims] 1 Silver formed by a composite mainly consisting of ultrafine fibers of 0.05 denier or less and/or a fiber structure in which the distance between fiber entanglement points of bundles thereof is 200 microns or less, and resin present in the voids. It has a surface layer on at least one side, and the layer below the grain layer is mainly entangled with ultrafine fiber bundles, and the grain layer is mainly composed of ultrafine fibers and/or bundles thereof, which are branched microfiber bundles in the lower layer. The fibers in the lower layer and the grain layer are substantially continuous, and furthermore, the boundary between the two layers represents the grain layer of the grain-covered artificial leather in which the degree of branching continuously changes. Artificial leather gloves for golf, which are made by sewing.