JP2885357B2 - Sport gloves - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to sports gloves used for golf, water skiing, baseball and the like.

[0002]

2. Description of the Related Art Conventionally, as a material for sports gloves,
Artificial materials such as natural leather or artificial leather are used. In the case of natural leather, most of them are silvered due to the problem of surface physical properties, and those with suede tone are relatively few,
There is no nubuck tone. For artificial materials,
In recent years, suede-like artificial leather consisting of a fiber entangled body of ultra-fine fibers or ultra-fine converging fibers of 0.5 denier or less and a polymer elastic body has been used as sports gloves, and has the same appearance, texture, and washable characteristics as natural leather. Yes, it came to be used a lot. Various proposals have been made as materials for sports gloves having a suede-like appearance, and many materials have been produced. Attempts to produce a nubuck-like material for sports gloves having a more delicate and luxurious appearance have been repeated, and many proposals have been made.

It is known that a sheet having various suede-like appearances can be produced by grinding a wet microporous surface made of polyurethane.
Japanese Patent No. 308279 discloses that a uniform and fine vertically long sponge structure having a good surface smoothness is produced by selecting a kind of polyurethane and a coagulation controlling agent, and by grinding this surface, a nubuck tone finer than a suede tone is obtained. A method for producing a leather-like sheet having an appearance has been proposed.

Japanese Patent Publication No. 62-42076 discloses a method for producing a nubuck-like sheet having naps with extra fine fibers on the surface. The nap is fixed by impregnating or applying a resin to a nap cloth having naps made of extra fine fibers. Then, the raised surface is pressed by a calender roll to make the raised hair fluff and adhere, and then a method of buffing the raised surface,
Further, Japanese Patent Publication No. 62-42075 discloses that a raised surface of a raised fabric made of ultrafine fibers is pressed by a calender roll to make the raised hair fluff and adhere, and then the resin is impregnated or coated on the raised fabric. Then, a method of buffing the raised surface of the raised fabric has been proposed.

JP-A-63-50580 discloses that an elastic polymer is applied to the surface of a fibrous sheet containing an elastic polymer on an entangled nonwoven fabric of ultrafine fibers having a single fineness of 0.3 dr or less, and embossing is performed if necessary. , 10% after buffing
A method has been proposed in which the above-described area shrinkage is applied to form a surface in which a raised portion and a silver surface are mixed. Japanese Patent Application Laid-Open No. 3-161576 discloses that only the surface layer of a nonwoven fabric made of a composite fiber capable of being made ultrafine is made into an ultrafine fiber, and then the nonwoven fabric is impregnated with an elastic resin and solidified. A method has been proposed in which the fibers are treated to form ultrafine fibers and the outermost surface is raised. Further, Japanese Patent Application Laid-Open No. 4-136280 discloses a non-fibrous, average particle size of 10 μm on the surface of a fibrous sheet containing a polymer mainly composed of an elastic polymer in a fiber assembly.
A method has been proposed in which a composition liquid of collagen powder having an apparent density of 0.1 to 0.3 g / cm ³ and a polymer mainly composed of polyurethane is applied, embossed, and then the coated surface is brushed. .

[0006]

In recent years, there has been an increasing demand for sports gloves having a higher-grade appearance than conventional ones having a suede-like appearance. In particular, a material having a nubuck-like appearance that is more delicate than a suede, and a material having good gripping properties are required. However, the conventionally proposed nubuck-like sheet is not always satisfactory in appearance, and furthermore, sufficient consideration has not been given to the gripping property of a sports glove. Gloves made of knitted and woven fabrics have been improved for a long time, such as attaching an elastic body such as rubber to dots, but sports gloves made of leather-like ultrafine fiber nap sheets have a woven fabric due to frictional resistance due to ultrafine fiber nap. Although it has a certain level of grip compared to that of the product made, it has not been actively improved and its performance is not enough.

For example, in the method of grinding the surface of a polyurethane wet sponge as disclosed in Japanese Patent Application Laid-Open No. 4-308279, a slimy feeling can be obtained with a fine polyurethane sponge, but the fine collagen fiber of the original nucleus nubuck is used. No lighting effect is obtained, and color unevenness and gloss unevenness due to surface grinding unevenness are not eliminated, and an original nubuck tone appearance is not obtained.

[0008] In addition, a method for producing a satisfactorily satisfactory nubuck fluffed sheet has not been obtained in a method for raising the surface of a base layer composed of a three-dimensionally entangled ultrafine fiber bundle and an elastic resin. For example, in the method disclosed in JP-A-3-161576, the surface layer resin is deformed due to swelling or the like due to treatment with a solvent or the like when the internal fibers are ultrafine, and the smoothness required for nubuck tone cannot be obtained. No uniform and delicate nap can be obtained over the entire surface. Furthermore, Japanese Patent Publication No. 62-42
No. 076 or Japanese Patent Publication No. Sho 62-4207, relatively long and rough naps raised from a cloth not impregnated with a resin are compacted by hot pressing with a calender roll before and after resin application, substantially When a resin having a binder amount of the base layer fiber is applied to the base layer, a dense wet sponge cannot be formed on the surface of the base layer, and a sufficiently smooth surface cannot be obtained. Therefore, this method of buffing the substrate surface does not provide a smooth surface sufficient to be referred to as nubuck, nor does it provide a uniform and fine nap. Further, the method described in JP-A-63-50580 is to obtain a mixed surface of the nap and the silver surface, and it is not possible to obtain uniform nap and smooth nap with short nubuck hair over the entire surface. Further, in the method described in Japanese Patent Application Laid-Open No. 4-136280, a mixed surface of a surface composed of collagen powder and polyurethane and a raised surface is obtained. I can't get it.

Regarding grip properties, a method of attaching an elastic body such as rubber to dots as in a knitted fabric for a sports glove made of a leather-like napped sheet remarkably impairs the appearance and lowers the commercial value. In addition, it cannot be carried out because the wearing feeling is impaired. An object of the present invention is to provide a nubuck-like sport glove having uniform, extremely short hair and delicate nap, and having an elegant appearance similar to that of natural leather nubuck and a unique slimy feeling.

[0010]

That is, the present invention relates to a surface comprising a three-dimensional entangled nonwoven fabric comprising ultrafine fibers and / or ultrafine fiber bundles and a dense foam of an elastic polymer existing in the entangled space. On the surface of the smooth fibrous base material layer, there is a mixed layer of a resin mainly composed of non-entangled fine fibers and an elastic polymer continuous with the fine fibers of the base layer, and a part of the non-entangled fine fibers is A sports glove formed by sewing a nubuck-like sheet material having a tip portion exposed in a napped state on the surface of the seat.

The nubuck-like sport glove of the present invention is obtained by sewing a nubuck-like sheet obtained by combining the following steps, for example. That is, the step of producing the ultrafine fiber-generating fiber, the step of producing an entangled nonwoven fabric made of the fiber, the step of temporarily fixing the nonwoven fabric, if necessary, impregnating the entangled nonwoven fabric with an elastic resin liquid,
The step of forming a dense foam, the step of modifying the fibers into a bundle of ultrafine fibers, and the step of smoothing the surface by press treatment or the like, if necessary, form a fibrous base, and the surface of the fibrous base is raised. Forming, a step of applying a resin to the nap surface, a step of forming fine nap by buffing the surface, a step of dyeing the obtained nap sheet, and a softening agent as necessary. By the step of impregnation or application to the surface, a nubuck-like sheet-like material can be obtained.

The ultrafine fiber bundle constituting the fibrous base layer of the nubuck sheet-like material used in the present invention is made of a conventionally known ultrafine fiber-generating fiber obtained by mixing or spinning at least two kinds of polymers. Can be For example,
Extractable fibers in which island components are fibrillated by dissolving or decomposing sea components with a solvent or a decomposing agent such as sodium hydroxide, or split-type fibers that fibrillate into ultrafine fibers consisting of each polymer mechanically or by a treatment agent Is raised.

The polymers constituting the ultrafine fibers are melt-spun polyamides such as 6-nylon and 66-nylon, melt-spun polyamides such as polyethylene terephthalates, polybutylene terephthalate and cationic dyeable modified polyethylene terephthalate. It is at least one polymer selected from possible polyesters and the like.

The component to be extracted or decomposed and removed by the extractable fiber is a polymer having a difference in solubility or decomposability with respect to a solvent or a decomposer from the microfiber component, and having low compatibility with the microfiber component. A polymer having a lower melt viscosity or a lower surface tension than the ultrafine fiber component below, for example, at least one polymer selected from polymers such as polyethylene, polystyrene, polyethylene propylene copolymer, and modified polyester.

[0015] The ultrafine fiber generating fiber is defibrated with a card,
A web is formed through a webber, and the obtained fiber web is laminated to a desired weight and thickness, and then subjected to an entanglement process by a known method such as needle punching or water entanglement to form a fiber entangled nonwoven fabric. I do. The fiber entangled nonwoven fabric may be a laminate in which a knitted fabric or the like is laminated. Prior to the impregnation with the resin liquid, the fiber-entangled nonwoven fabric is preferably impregnated with a resin liquid for temporary fixing such as a water-soluble resin, if necessary, or its surface is smoothed by press treatment.

Next, the fiber entangled non-woven fabric is impregnated with an elastic resin liquid and gelled by heating and drying, or is immersed in a liquid containing a non-solvent of the elastic resin and wet-solidified to form a dense foamed sponge. Formed into a fibrous substrate. The elastic resin to be impregnated here is, for example, an average molecular weight of 500 to 3000.
And at least one polymer diol selected from complex diols such as polyester diols, polyether diols, polycarbonate diols and polyester polyether diols, and aromatic compounds such as 4,4'-diphenylmethane diisocyanate, isophorone diisocyanate and hexamethylene diisocyanate. Obtained by reacting at least one diisocyanate selected from alicyclic and aliphatic diisocyanates with at least one low-molecular compound having two or more active hydrogen atoms at a predetermined molar ratio. Polyurethane and modified products thereof, other elastic resins such as polyester elastomer and acrylic resin may be used. Also,
A polymer composition obtained by mixing these may be used. However, the above polyurethane is preferably used because of its flexibility, elastic recovery property, sponge forming property and the like.

A polymer liquid obtained by dissolving or dispersing the above polymer in a solvent or dispersant is impregnated into a fiber-entangled nonwoven fabric and sponge-formed to obtain a fibrous substrate.
If necessary, additives such as a colorant, a coagulation regulator, an antioxidant, and a dispersant are added to the polymer liquid. The proportion of the polymer in the fibrous substrate is to provide the substrate with a soft feel and elastic recovery, and most importantly, to form a highly smooth substrate surface before applying the resin to the nap surface. The solid content is preferably 10% or more, preferably 30 to 50% by weight. If the elastic body ratio is less than 10%, a dense elastic sponge is not formed, the fine fibers cannot be fixed sufficiently when raising the substrate surface, and the elastic sponge itself is not dense and smooth, so the resin is applied. The raised surface before the cleaning is not sufficiently smooth. Therefore, the surface of the product coated with the resin and buffed cannot have a sufficiently dense smooth surface enough to be called a high-grade nubuck tone.

Next, the fibrous base material containing the polymer is treated with a solvent or a decomposer or the like which is a non-solvent for the ultrafine fibers and the polymer and is a dispersing medium component of the ultrafine fiber generating fibers, or is mechanically treated. An ultrafine fiber bundle is generated by performing the treatment.

Subsequently, the surface of the substrate is raised to form a smooth raised surface mainly having ultrafine fibers.
As the raising method, raising with a needle cloth raising machine or the like is also used, but buffing with sandpaper or the like is preferably performed because delicate and uniform raising is possible. The standing hair here has a fineness of less than 0.5dr, preferably 0.1 to
The ultrafine fibers of 0.001 dr can be nubuck-like fine naps. If it is 0.5dr or more, it becomes a so-called naped hair with a little lack of fineness. If it is less than 0.001 dr, the coloring property is not sufficient. The length of the nap is 2 mm or less, preferably 0.5 mm or less. With a nap of 2 mm or more, the elastic resin layer cannot sufficiently fix the nap, and a delicate nap cannot be obtained, and a smooth surface cannot be obtained.

Further, an elastic resin liquid is applied to the raised surface to form a layer in which the ultrafine fiber raised and the elastic resin are mixed. Specifically, for example, a 100% modulus is 40 kg /
A flexible polyurethane solution or an aqueous emulsion having a size of not more than cm ² is applied by gravure at a solid content of 0.1 to 10 g / m ² , preferably 0.2 to 5 g / m ² . When the amount is less than 0.1 g / m ² , the nap face cannot be sufficiently covered, and as a result, a smooth surface cannot be obtained and a uniform nap cannot be obtained. Also, 1
When an elastic resin of 0 g / m ² or more is applied, the resin layer becomes too thick, and even if buffing is performed, no nap is obtained and so-called silver tone is obtained. Here, from the smoothness of the coating surface and the ease of buffing later, the softness of the buffing surface and the slimy feeling can be easily obtained, so that it is not a so-called dry film-like non-porous film, but a porous structure. It is preferable to form an elastic resin layer having the following. Such a porous structure is, for example, heated to 50 ° C. or higher, gelled, and coated with an aqueous polyurethane resin emulsion forming a porous structure, and heated and dried at 50 ° C. or higher for 1 minute or more,
Further, by heating at 100 ° C. to 140 ° C. for 2 minutes or more, a surface layer in which ultrafine fibers and polyurethane having a porous structure are mixed and integrated is formed. Alternatively, after applying and drying a polyurethane resin composition liquid in which water-soluble fine particles such as gelatin and salts are dispersed, the water-soluble fine particles are eluted and removed in hot water at 50 to 90 ° C. to form a microporous structure. A surface layer in which fibers and microporous polyurethane are mixed and integrated is formed. However, it is difficult to form an elastic porous layer by the so-called wet coagulation method with such an amount of application, and it is irrational in terms of cost.

Polyurethane is preferably used as the elastic body to be applied here. Polyurethanes, polyethers, polycarbonates and other polyurethanes can be used as the elastic body. Ether type and polycarbonate type are preferably used. Among them, the non-yellowing type in which the diisocyanate and the chain extender constituting the hard segment are made of alicyclic, aliphatic, etc. are more preferable without discoloration or fading. Examples of the coating method include direct coating, reverse roll coating, and a transfer method using release paper. However, as in the present invention, a gravure coating method is used as a coating method in which a small amount is uniformly applied and the substrate is appropriately penetrated. The method is preferably used.

Next, the surface of this layer is buffed with a sandpaper or the like to grind the polyurethane resin layer to smooth the surface and raise the ultrafine fibers contained in the resin layer. Forms a nap of fine fibers of 0.2 mm or less to give a nubuck sheet. If the nap length exceeds 0.5 mm, it is not in the category of nubuck tone but is referred to as suede tone. At this time, sandpaper is preferably used, but # 400, # 6
The use of a material having the smallest possible particle size, such as 00, can form a smoother surface and short and uniform nap.

This napped sheet is dyed with a gold-containing complex dye, an acid dye, a sulfur dye or the like in a conventional manner, and if necessary, rubbed, trimmed, and slimmed to obtain a delicate and uniform napped. And a nubuck-like raised hair sheet having a delicate appearance and a slimy feeling. The resulting sports gloves obtained by sewing the obtained nubuck-like sheet-like material are full of luxurious feeling, and moderate elastic friction resistance is expressed by the soft elastic resin and extra-fine fiber napped on the napped surface, and grip performance is improved. It is excellent.

[0024]

EXAMPLES Next, the implementation of the present invention will be described specifically with reference to examples, but the present invention is not limited to these examples. In the examples, parts and percentages relate to weight unless otherwise specified.

Example 1 A sea-island type composite fiber comprising 60 parts of 6-nylon (island component) and high-flowability low-density polyethylene (sea component) was obtained by melt spinning, and this was heated in hot water at 70 ° C. for 2.5 times. It was stretched twice, a fibrous oil agent was applied thereto, mechanically crimped and dried, and then cut into 51 mm to obtain staples. The thickness of the sea component of this sea-island composite fiber was 0.005 dr on average. This staple is defibrated with a card and the basis weight is 500 g / m ² by the cross wrap method.
And then alternately from both sides for about 5
00 punch / m ² and needle-punching, and further heating,
Pressing with a calender roll produced an entangled nonwoven fabric with a smooth surface. The basis weight of this entangled nonwoven fabric is 540 g /
m ² , and apparent density was 0.3 g / cm ³ . This entangled nonwoven fabric is impregnated with a DMF solution of polyurethane mainly composed of polytetramethylene ether-based polyurethane,
After immersion in a / water mixture and wet coagulation, sea components in the conjugate fiber were eluted and removed in hot toluene to express ultrafine fibers, and a fibrous substrate was obtained. After dividing the obtained fibrous base material into two in the thickness direction, the divided surface is buffed to adjust the thickness to 0.5 mm, and the opposite surface is brushed with # 400 and # 600 sandpaper, and the surface has raised hair. A fibrous substrate was used. The nap surface is coated with an aqueous polyurethane emulsion by gravure at 15 g / m ² , gelled by heating to 70 ° C., heated and dried, and further heated at 100 ° C. to 140 ° C. for 3 minutes to form ultrafine fibers. A surface layer in which polyurethane having a porous structure was mixed and integrated was formed. This resin-applied surface was ground again with # 400 and # 600 sandpaper to obtain a napped sheet.

The nap sheet was dyed brown under the following conditions. Dyeing conditions Ranyl Brown GR (Sumitomo Chemical Co., Ltd.) 4% owf Leveran NK-D 1g / l Dyeing temperature 90 ° C After drying, rubbing and hair-dressing treatments give an elegant and slimy appearance with uniform and delicate napped hair Was obtained. The sports gloves obtained by sewing this sheet-like material were full of luxury and had good grip properties.

Example 2 A water-based polyurethane emulsion having the following composition was applied to the raised surface of the fibrous base having raised hairs of Example 1 by a gravure coating method at a rate of 20 g / m ^{2, and then} applied at 100 ° C. for 2 minutes and further at 120 ° C. for 4 minutes. After heating and drying for a minute, a layer in which the microfiber naps and the resin having microporosity were mixed was formed. And again, # 400 and #
The surface was buffed with 600 sandpaper to obtain a napped sheet. Aqueous polyurethane emulsion (solid content: 40%) 100 parts Coagulation accelerator 20 parts Water 50 parts The napped sheet was dyed brown under the same conditions as in Example 1. After drying, rubbing and hair treatment were performed to obtain a nubuck-like sheet-like material having an elegant appearance with uniform and delicate nap and a slimy feeling. The sports gloves obtained by sewing this sheet-like material were full of luxury and had good grip properties.

Example 3 The napping surface of the fibrous base having napping on the surface of Example 1
After applying 20 g / m ² of a polyurethane solution containing water-soluble fine particles of the following composition by gravure and drying, the resultant is treated in hot water at 70 ° C. for 30 minutes to elute and remove the water-soluble fine particles, and dried to obtain fine fiber nap. A layer in which a resin having microporosity was mixed was formed. Then, the surface was buffed again with # 400 and # 600 sandpaper to obtain a napped sheet. Polyurethane solution Ether-based polyurethane (solid content 30%) 100 parts Isoban (registered trademark: manufactured by Kuraray Co., Ltd.) 60 parts MEK 50 parts Toluene 50 parts The napped sheet was dyed brown under the same conditions as in Example 1. After drying, rubbing and hair treatment were performed to obtain a nubuck-like sheet-like material having an elegant appearance with uniform and delicate nap and a slimy feeling. The sports gloves obtained by sewing this sheet-like material were full of luxury and had good grip properties.

Example 4 Latent release type composite which can be transformed into microfibers of polyethylene terephthalate and 6-nylon having an average fineness of 0.1 dr in place of the composite fibers of microfine fiber components of Example 1 having an average fineness of 0.005 dr Using the fiber, an entangled non-woven fabric was made in the same manner as in Example 1, and the same polyurethane solution as in Example 1 was impregnated and wet-coagulated, and then treated with a solution containing benzyl alcohol to peel off each component of the composite fiber. And ultrafine fibers were developed. Then, the substrate is divided into two parts, back buffed and raised as in Example 1, and a water-based polyurethane emulsion that gels at 50 ° C. or higher and has a porous structure is applied to the raised surface, dried by heating, surface buffed and dyed. By finishing, a nubuck-like sheet having an elegant appearance and a slimy feeling was obtained. Sports gloves obtained by sewing this sheet-like material,
It was full of luxury and had excellent grip.

Example 5 The ultrafine fiber-generating conjugate fiber staple of Example 1 was entangled with a knitted fabric made of polyethylene terephthalate fiber by hydroentanglement, and then impregnated with the same polyurethane solution as in Example 1 and wet coagulated. Then, the fiber was treated in hot toluene to elute and remove the sea component of the composite fiber to express ultrafine fibers, thereby obtaining a fibrous substrate. This was raised in the same manner as in Example 1, and the raised surface thereof was coated with an aqueous polyurethane emulsion that gelled at 50 ° C. or higher to have a porous structure, dried by heating, and then subjected to surface buffing.
By dying, a nubuck-like sheet having a similarly elegant appearance and slimy feeling was obtained. The sports gloves obtained by sewing the sheet material were full of luxury and excellent in gripping property.

COMPARATIVE EXAMPLE 1 The same fibrous substrate as in Example 1 was dyed and finished without raising the surface of the polyurethane emulsion by application and surface buffing only by brushing to obtain a napped sheet. This napped sheet-like material was a suede-like napped sheet material having a high-grade appearance, but could not have a delicate appearance with nubuck-like short hairs and uniform nappedness. The sports gloves obtained by sewing this sheet-like material lacked a sense of quality and had insufficient grip properties.

Comparative Example 2 A water-based polyurethane emulsion was applied at a solid content of 30 g / m ² on the surface of a fibrous substrate composed of polyurethane and ultra-fine fibers of 6-nylon having the same surface as in Example 1, and
Buffed with sandpaper, but the polyurethane layer was too thick, could not be ground sufficiently and did not have a smooth surface, and the nap of fine fibers could not be obtained sufficiently, so a nubuck-like delicate appearance could not be obtained . Sports gloves obtained by sewing this sheet-like material lacked luxury.

[0033]

The sports gloves of the present invention have a smooth surface, differing from the conventional suede-like nap-formed sheet-like material, and have an extremely short microfiber nap on the surface, and have an elegant appearance very similar to natural leather nubuck. Since it is made of a nubuck leather-like sheet having the appearance and texture, it is full of luxury and is excellent in texture and grip when worn, and thus is useful as gloves for golf, water skiing, baseball, and the like. In particular, it has a good grip even when wet with sweat or water, and has high easy-care properties as compared with natural leather and the like.

Claims (1)

(57) [Claims] 1. A surface of a fibrous base material layer having a smooth surface made of a three-dimensional entangled nonwoven fabric made of ultrafine fibers and / or ultrafine fiber bundles and a dense foam of an elastic polymer existing in the entangled space, The base layer has a mixed layer of non-entangled ultrafine fibers continuous with the ultrafine fibers and a resin mainly composed of an elastic polymer, and a part of the non-entangled ultrafine fibers is exposed in a raised state on the sheet surface at the leading end. Sports gloves made by sewing nubuck-like sheet materials.