NON-SLIP FINISHED GLOVE AND METHOD FOR MANUFACTURING THE SAME

A non-slip finished glove includes: a glove main body made of fibers for covering a wearer's hand; a plurality of protrusions made of resin or rubber, the protrusions being fixed at least to a palm region of an outer face of the glove main body; and an air permeable coating layer that is laminated at least on a region other than the protrusions in the palm region of the outer face of the glove main body, in which the protrusions protrude from an outer face of the coating layer. The plurality of protrusions allows grip of an object and, since the coating layer is provided in regions other than the protrusions not to expose fibers of the glove main body, a sufficient gripping force can be exerted to firmly grip the object.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

Preferred embodiments of the present invention are described in detail hereinafter, with reference to the drawings as necessary.

A non-slip finished glove1ofFIG. 1includes: a glove main body3made of fibers for covering a wearer's hand; a plurality of protrusions5that is fixed in a form of dispersed dots to a palm region of an outer face of the glove main body3; and a coating layer7that is laminated on the palm region of the outer face of the glove main body3.

The glove main body3is formed in a glove shape by knitting fibers composed of woolly nylon and the like and is air permeable. A fabric of the glove main body3can be appropriately 0.6 mm in thickness, and preferably at least 0.2 mm and no greater than 1.0 mm, and more preferably at least 0.4 mm and no greater than 0.8 mm, in a center part of palm.

The thickness smaller than the abovementioned lower limit reduces strength of the glove main body3, and the thickness greater than the abovementioned upper limit reduces workability during use. The thickness can be, for example, an average of results of measurements in five sites by using a dial thickness gauge DS-1211 (trade name) (manufactured by Niigata Seiki Co., Ltd.).

The fiber composing the glove main body3is not limited to woolly nylon and various fibers can be employed. For example, the glove main body3can also be made of organic fibers such as: polyester; cotton; rayon; acrylic; aramid; high strength polyethylene; polyurethane; and the like, as well as stainless fiber and glass fiber. For a use in which a dust generation is undesirable, the fiber composing the glove main body3is preferably a long fiber of nylon and polyester. For a use that requires resistance to cutting, the fiber composing the glove main body3is preferably: para-aramid (paraphenylene terephthalamide, for example Kevlar (trade name) (manufactured by DuPont)); high strength polyethylene (for example Dyneema (trade name) (manufactured by Toyobo Co., Ltd.)); a composite fiber including metallic thin wire or glass fiber; and the like. As the fiber composing the glove main body3, the above listed fibers can be used singly or in combination. In addition, as a method for forming a glove shape, for instance, a seamless knitting method that knits a glove without a seam can be employed, and alternatively, for instance, a method of sewing a fabric composing a back-of-hand part and a fabric composing a palm part to obtain a glove shape can be employed.

A cuff portion3aof the glove main body3is stretchable in a peripheral direction and thus configured to be extendable and shrinkable in a radial direction. A portion on a fingertip side of the cuff portion3aof the glove main body3is also stretchable in the peripheral direction and thus configured to be extendable and shrinkable in the radial direction. Here, the cuff portion3apreferably has greater stretchability than that of other portions (portions next to the cuff portion3aon the fingertip side) and is configured to be smaller in diameter in a shrunk state than an expected wearer's wrist, thereby providing superior close-fitting properties during wearing.

The plurality of protrusions5is formed on an entire area of the palm region of the glove main body3. In the present invention, the protrusions5can be formed only in a limited area of the palm region, for example only in a finger area of the palm region or in an area (flat part) other than the finger area of the palm region. In addition, the plurality of protrusions5which are provided in a form of dispersed dots is provided in a manner substantially evenly spread in a formation region of the protrusions5(entire area of the palm region).

In addition, each of the protrusions5is configured in a substantially circular granular shape in a front view (the palm region is viewed from a vertical direction). In the present embodiment, the protrusion5is configured to be approximately 2 mm in diameter. The diameter of the substantially circular protrusion5is preferably at least 1.0 mm and no greater than 8.0 mm, and more preferably at least 1.5 mm and no greater than 5.0 mm. The diameter smaller than the above specified lower limit makes the gripping force of the protrusion5insufficient and the diameter greater than the above specified upper limit reduces the air permeability in the vicinity of the protrusion5and makes the wearer's hand sweaty. In addition, a proportion of a total area of the plurality of protrusions5to an area of the formation region of the protrusions5(entire area of the palm region) is preferably at least 1% and no greater than 80%, and more preferably at least 5% and no greater than 50%. The proportion smaller than the above specified lower limit makes the gripping force of the protrusions5insufficient and the proportion greater than the above specified upper limit reduces the air permeability of the palm region and makes the wearer's hand sweaty.

Furthermore, each of the protrusions5is configured in a substantially semielliptical shape having a cross-section (a face obtained by vertically cutting the palm region) narrowing from the base part to a tip end (outer face side). The base part of the protrusion5is impregnated in a superficial layer of the glove main body3. This allows firm fixation of the protrusions5to the glove main body3and can appropriately prevent the protrusions5from separating from the glove main body3. It should be noted that, althoughFIG. 3only illustrates the protrusion5and not the glove main body3in the base part of the protrusion5, the protrusion5and the fibers of the glove main body3are both present in the base part. In other words, the base part of the protrusion5impregnates into gaps between the fibers of the glove main body3. In addition, the base part of the protrusions5is preferably impregnated in the superficial layer of the glove main body3by at least 50 μm, and more preferably by 100 μm. A degree of the impregnation smaller than the above specified lower limit cannot make the fixation of the protrusions5to the glove main body3firm. An upper limit of the degree of the impregnation is the thickness of the glove main body3. There may be a case in which some of the plurality of protrusions5has the base parts not impregnated in the superficial layer of the glove main body3. However, it is preferable that at least a half of the protrusions5provided in areas corresponding to phalanges (areas corresponding to fingers and an area in the flat part corresponding to bases of fingers), among the plurality of protrusions5, are impregnated in the superficial layer of the glove main body3as described above.

Moreover, the protrusion5is formed in a hollow shape. More specifically, the protrusion5preferably has a hollow part5aformed thereinside. It should be noted that such a hollow part5amay be provided in each of the plurality of protrusions5or may be provided in only some of the plurality of protrusions5. However, it is preferable that at least a half of the protrusions5provided in areas corresponding to phalanges, among the plurality of protrusions5, are formed in hollow shapes.

The protrusions5are provided to protrude from the outer face of the coating layer7. It should be noted that, in the present invention, although the protrusions5can be provided to protrude the outer face of the coating layer7to thereby become exposed, in the present embodiment, a thin film of the coating layer7covers an outer face of the protrusions5while the protrusions5protrude from an average interface of the outer face of the coating layer7, as shown inFIG. 3. Here, a height of protrusion of the protrusions5with respect to the outer face of the coating layer7is preferable at least 0.02 mm and no greater than 0.50 mm, and more preferably at least 0.04 mm and no greater than 0.40 mm. The height smaller than the above specified lower limit makes the gripping force of the protrusions5insufficient and the height greater than the above specified upper limit makes the protrusions5damageable upon grip of an object. Even a case in which a part of the plurality of protrusions5do not protrude from the outer face of the coating layer7is within an intended scope of the present invention. However, it is preferable that at least a half of the protrusions5provided in the areas corresponding to phalanges, among the plurality of protrusions5, are provided to protrude from the coating layer7.

In addition, the protrusions5are made of a resin or rubber and formed to be elastically deformable. Here, the protrusions5are formed by attaching a liquid protrusion forming material in a form of dispersed dots to an outer face of the glove main body3and then curing the material.

The resin or rubber as a material for the protrusions5can be appropriately selected from conventionally known materials, for example: natural rubber; nitrile butadiene rubber; silicone elastomer; acrylic rubber; acrylic elastomer; polyurethane rubber; polyurethane elastomer; and the like. However, a synthetic resin such as a vinyl chloride resin is preferable. By employing a synthetic resin such as a vinyl chloride resin, which produces less volume change between before and after the curing in a forming process compared to latex rubber and the like, adjustment of size (for example, the height of protrusion) of the protrusion5becomes easy and certain, making manufacture of the glove easy and certain.

The vinyl chloride resin employed as a resin composing the protrusions5may be: a soft vinyl chloride resin; a vinyl chloride resin; or a vinyl chloride-vinyl acetate copolymer resin. As such resins, PSM-30 (trade name, manufactured by Kaneka Corporation), PSH-31 (trade name, manufactured by Kaneka Corporation), PCH-843 (trade name, manufactured by Kaneka Corporation) and the like can be exemplified.

The material for the protrusions5can also contain known plasticizer, stabilizer, thickening agent, coloring agent and the like. Here, as the plasticizer: a phthalate ester plasticizer; an adipate ester plasticizer; a citrate ester plasticizer; a benzoate ester plasticizer; a polyester plasticizer; an acrylic copolymer plasticizer; and the like can be exemplified.

An amount of the plasticizer to be added is preferably at least 90 parts by mass and no greater than 180 parts by mass, more preferably at least 120 parts by mass and no greater than 160 parts by mass, relative to 100 parts by mass of the resin. The amount smaller than the above specified lower limit makes the protrusions5rigid and makes the gripping force of the protrusions5insufficient; and the amount greater than the above specified upper limit makes the protrusions5excessively soft and makes the protrusions5damageable upon grip of an object.

The thickening agent is added for viscosity adjustment. The viscosity (V2 viscosity) of a material composing the protrusions5measured by a BH type viscometer is preferably at least 100,000 mPa·s and no greater than 1,500,000 mPa·s, and more preferably at least 200,000 mPa·s and no greater than 1,000,000 mPa·s. The viscosity lower than the above specified lower limit makes fluidity of the material excessively high and may make the protrusions5flat. On the other hand, the viscosity higher than the above specified upper limit may cause air bubbles to form in the material and unintentionally form concavities and the like on the outer face of the protrusions5. In addition, in a case of using a masking plate with punched holes at positions corresponding to the protrusions5in order to arrange the material for the protrusions5in a form of dispersed dots onto the glove main body3, the viscosity higher than the above specified upper limit makes the material for the protrusions5difficult to flow into the punched holes on the masking plate and may make it difficult to form the protrusions5as desired.

The coating layer7is laminated at least on a region other than the protrusions5in the palm region of the outer face of the glove main body3. In the present embodiment, the coating layer7is formed in such a way that a liquid coating layer forming material composing the coating layer7is laminated onto an entire area of the palm region including the protrusions5and then the material is cured. In the illustrated examples, the coating layer7is provided in a so-called non coated back manner, in which the coating layer7is formed not only in the palm region of the glove main body3but also in the periphery of a back-of-hand region (a region next to a wrist and extending to fingertips on a face directed outward upon grip of an object) which is on an opposite side of the palm region as shown inFIG. 2, but not in a central part of the back-of-hand region. It should be noted that, although it is preferable that the coating layer7is not formed in the cuff portion3a, the coating layer7being formed in the cuff portion3afor the sake of manufacturing process is also within the intended scope of the present invention. Alternatively, the coating layer may be provided in an area from fingertips to the bases of fingers in the back-of-hand region, for protection of a hand.

The coating layer7is configured to be porous and air permeable. Here, as the material composing the coating layer7, latex or vinyl chloride sol that are machine foamed, latex or vinyl chloride sol that include a chemical foaming agent, and the like may be used. However, a machine foamed material is high in viscosity and may make the coating layer7high in thickness and the protrusions5buried in the coating layer7. On the other hand, with a material including a chemical foaming agent, thickness control of a foamed layer is difficult and the protrusions5may also be buried in the coating layer7. Given this, it is preferable to employ a polyurethane solution for wet processing as the coating layer forming material. By a polyurethane solution dipping process, a desired coating layer7can easily and infallibly be formed. In other words, the polyurethane solution for wet processing that is low in viscosity can make the coating layer7a relatively thin layer and can facilitate protrusion of the protrusions5from the outer face of the coating layer7. In addition, in a case of employing the polyurethane solution as the coating layer forming material, for example a polyurethane resin for wet processing dissolved in DMF (N,N-dimethylformamide) can be used. As the polyurethane resin for wet processing, for example CRISVON 8006 HVLD (trade name, manufactured by DIC Corporation) can be employed.

The coating layer7is provided such that, in a region in which the protrusions5are not formed (regions between the plurality of protrusions5), an interface (outer surface) thereof is positioned more on an outer face side than an outer surface (surface of the superficial layer) of the glove main body3. More specifically, a superficial layer of the coating layer7that is positioned more on an outer face side than the outer face of the glove main body3is provided, for example, in a thickness of 0.23 mm (a distance between the outer face of the glove main body3to the outer face of the coating layer7). It should be noted that the thickness of the superficial layer of the coating layer7is preferably at least 0.05 mm and no greater than 0.80 mm and more preferably at least 0.10 mm and no greater than 0.40 mm. The thickness smaller than the above specified lower limit makes formation of the superficial layer of the coating layer7difficult and the thickness greater than the above specified upper limit may give a rough sensation to a wearer.

In addition, by forming the coating layer7by impregnating the glove main body3with the coating layer forming material, the coating layer7is provided to appear on an inner face of the glove main body3. In other words, the coating layer7is provided on a face in contact with the wearer's palm. Furthermore, an inner face side of a region in which the protrusion5is formed of the glove main body3(region immediately below the base part of the protrusion5) is also impregnated with the material composing the coating layer7.

Furthermore, the coating layer7is provided in close contact with an outer periphery of an buried part of the protrusion5. Here, the buried part of the protrusion5is a part of the protrusion5that is positioned more on an inner face side than the superficial layer of the coating layer7(a non protruding part of the protrusion5).

It should be noted that, by employing a vinyl chloride resin or a vinyl chloride-vinyl acetate copolymer resin as a main component of a resin material composing the protrusions5and by employing polyurethane as a main component of a rubber material composing the coating layer7, a main component of a rubber material composing the coating layer7is non-penetrable with respect to the protrusions5. As a result, the coating layer7is not easily formed on the outer surface of the protrusion5, or the coating layer7formed on the outer surface of the protrusion5can be made a relatively thin film.

Moreover, in the non-slip finished glove1, moisture permeability between the outer face and the inner face on a palm side is preferably at least 1000 g/m2·24 h and no greater than 15000 g/m2·24 h, and more preferably at least 4000 g/m2·24 h and no greater than 12000 g/m2·24 h. Because the moisture permeability lower than the above specified lower limit causes a problem of sweaty hands after long-time, wearing and the moisture permeability higher than the above specified upper limit makes the coating layer7insufficient so that a sufficient gripping force thereof can not be achieved. It should be noted that the above discussed moisture permeability is a numerical value measured according to JIS-L-1099A (moisture permeability testing method for fiber products).

In the non-slip finished glove1according to the present embodiment configured as described above, since the protrusions5protrude from the outer face of the coating layer7, a gripping force acts more appropriately on the plurality of protrusions5upon grip of an object. Especially, since the protrusions5are provided to be elastically deformable, the protrusions5deform appropriately upon grip and such deformation increases a contact area between the protrusions5and the object, thereby obtaining a sufficient gripping force. Furthermore, since the protrusions5are formed in hollow shapes, the above described deformation can be caused more easily and more sufficient gripping force can be obtained.

In addition, since the material composing the coating layer7is non-penetrable with respect to the protrusions5, the coating layer7is not easily formed on the outer face of the protrusion5. Since no coating layer7, or only a relatively thin coating layer7, is formed on the outer surface of the protrusion5, the protrusions5can deform appropriately upon grip of an object to exert a sufficient gripping force. In a case in which no coating layer7is formed on the outer face of the protrusions5, the protrusions5are brought into direct contact with the object and a friction force (gripping force) can be obtained between the material (resin) composing the protrusions5and the object. Furthermore, even if the thin coating layer7is formed on the outer face of the protrusions5, the coating layer7formed thereon is thin and may remove from and expose the protrusions5during use or the like. The friction force can thus be obtained between the material composing the protrusions5and the object as described above. As a result, a friction force can be obtained in contact with the material of the protrusions5that is different from that of the coating layer7and can exert an appropriate gripping force for various objects.

For the coating layer7, employing the same material as that of the protrusions5or employing a material with high adhesiveness with respect to the protrusions5may generally be conceived for preventing the protrusions5from dropping off. However, in a case of employing the same material for the coating layer7and the protrusions5, the coating layer may be formed thickly on the outer face of the protrusions5and the protrusions5may easily be buried in the coating layer7. Especially in a case of configuring the coating layer7porous, the coating layer forming material is high in viscosity and the protrusions5may easily be buried in the coating layer7as described above. Given this, a configuration of the present non-slip finished glove in which the protrusions5protrude from the coating layer7is remarkable, and the configuration provides an effect of exerting an appropriate gripping force.

In addition, since the base part of the protrusion5is impregnated into the superficial layer of the glove main body3, the protrusions5firmly adhere to the glove main body3and dropping off of the protrusions5from the glove main body3during use can be appropriately prevented. Especially since the coating layer7is provided in close contact with the outer periphery of the buried part of the protrusion5, dropping off of the protrusions5can be prevented even more effectively. As described above, the protrusions firmly adhere to the glove main body and do not easily drop off from the non-slip finished glove. This can prevent the reduction in gripping force after long-term use.

Moreover, since the coating layer7is thus provided to surround the outer periphery of the buried part of the protrusions5, upon grip of an object, the protrusions5lift a first end side of the fabric of the glove main body3toward an outer face side, with restricting the movement of the base part away from the wearer's palm. In other words, if the protrusions5are simply provided on the glove main body3without the coating layer7, when a force in a planar direction of the palm (for example in a direction toward fingertips) is applied to the protrusions5upon grip of an object, the protrusions5pull the first end side (cuff side) of the glove main body3toward the outer face side and move the base parts of the protrusions5away from the palm. This may hinder an appropriate gripping force from acting. On the other hand, in the present non-slip finished glove1, the coating layer7is provided in close contact with the outer periphery of the buried part of the protrusions5. The glove main body3with the coating layer7is greater in rigidity than a simple glove main body3. This can prevent the first end side of the glove main body3and the coating layer7from being lifted toward the outer face side, allowing an appropriate gripping force to exert. Especially, since the coating layer7is provided also on the inner face of a region in which the protrusion5is formed of the glove main body3(region immediately below the base part), the coating layer7supports the protrusions5not only from the periphery but also from the inner face (lower face). This can prevent the above described movement of the protrusions5away from the palm even more efficiently, allowing an appropriate gripping force to exert.

On the outer face of the glove main body3, the coating layer7is provided in regions other than the protrusions5and the fibers of the glove main body3are not exposed. This allows the coating layer7to exert a sufficient gripping force to firmly grip an object.

In addition, the coating layer7appears on the inner face of the glove main body3. This provides a sufficient friction force between the inner face of the non-slip finished glove1and the wearer's palm, and can appropriately prevent the non-slip finished glove1from sliding on a hand during grip of an object.

Furthermore, the coating layer7is air permeable and therefore prevents the wearer's hand from being sweaty. Specifically, the coating layer7is provided in non coated back manner and therefore prevents the wearer's hand from being sweaty.

A manufacturing method of the non-slip finished glove1of the present embodiment configured as described above is outlined hereinafter; however, the manufacturing method according to the present invention is not limited thereto. In addition, in the following explanation of the manufacturing method, descriptions overlapping with those of the above discussed non-slip finished glove may be omitted.

The manufacturing method according to the present embodiment includes: a glove forming step S1of forming the glove main body3made of fibers for covering a wearer's hand; a protrusion forming step S2of applying the protrusion forming material that contains a resin as a main component in a form of dispersed dots in the palm region of the glove main body3thus formed; and a coating layer forming step S3of forming the coating layer7in the palm region of the glove main body3with the protrusions5thus formed, in such a way that an outer face (average interface) thereof is positioned lower than the protrusions5.

The glove forming step S1is a step of forming the glove main body3by knitting fibers made of woolly nylon and the like into a glove shape.

The protrusion forming step S2is a step of obtaining the glove main body3with the protrusions5adhering thereto by: placing a masking plate onto the palm region of the glove main body3formed by the glove forming step S1; filling punched holes provided on the masking plate with the material composing the protrusions5to thereby apply the material onto the glove main body3; removing the masking plate from the palm region of the glove main body3; and heating the glove main body3with the material of the protrusions5applied thereto. Upon lifting the masking plate away from the palm region of the glove main body3as described above, an outer peripheral part of the protrusion5in contact with an inner face of the punched hole, among the material of the protrusion5that fills the punched hole of the masking plate, is first lifted along with the masking plate. In accordance with further elevation of the masking plate, the outer peripheral part of the protrusion5separates from the masking plate, inclines toward the center, and drops under its own weight. This combines a plurality of outer peripheral parts to form the hollow part5ainside the protrusion5.

The coating layer forming step S3further includes: a coating layer material laminating step S31of laminating the coating layer forming material that contains a resin or rubber as a main component and a solvent onto the glove main body3; and a pore forming step S32of extracting the solvent in the coating layer forming material laminated onto the glove main body3.

The coating layer material laminating step S31is a step of putting the glove main body3onto a hand mold and immersing the palm region of the glove main body3in the coating layer forming material.

The pore forming step S32is a step of making the coating layer7porous by placing the glove main body3in a hot water bath longer than a certain time in order to replace the solvent in the coating layer forming material having impregnated into the glove main body3with water, and then drying.

According to the above described method, the non-slip finished glove1with the abovementioned advantages can be manufactured.

It should be noted that the present invention is not limited to the above described mode, and can be embodied in modes with various modifications and improvements.

In other words, in the above described embodiment, dot-like protrusions5have been described; however, the protrusion5is not particularly limited in shape and various shapes can be selected for the protrusions5. For example, providing a plurality of protrusions5in elongated rectangular shapes as shown inFIG. 7is also within an intended scope of the invention of the present application.

Furthermore, the material composing the protrusions and the material composing the coating layer are preferably selected such that the material composing the coating layer is non-penetrable with respect to the protrusions, as is already described. More specifically, in a case of employing vinyl chloride resin as the material composing the protrusions, it is preferable to employ polyurethane rubber or polyurethane elastomer as the material composing the coating layer. In a case of employing silicone elastomer as the material composing the protrusions, it is preferable to employ polyurethane rubber, polyurethane elastomer, natural rubber, or nitrile butadiene rubber as the material composing the coating layer. In addition, in a case of employing natural rubber as the material composing the protrusions, it is preferable to employ polyurethane rubber, polyurethane elastomer, or nitrile butadiene rubber as the material composing the coating layer.

EXAMPLES

The present invention is described more specifically with Examples hereinafter; however, the present invention is not limited thereto.

A protrusion forming material composed of 100 mass parts of vinyl chloride-vinyl acetate resin (trade name: PCH-843 (manufactured by Kaneka Corporation)), 150 mass parts of a plasticizer (trade name: Mesamoll ASEP (manufactured by Lanxess K.K.)), 3 mass parts of stabilizer (trade name: SC-72 (manufactured by Adeka Corporation)), and 7.5 mass parts of a thickening agent (trade name: REOLOSIL QS-102 (manufactured by Tokuyama Corporation)) was prepared. The viscosity of the protrusion forming material measured by using a BH type viscometer (manufactured by TOKIMEC INC. (currently TOKI SANGYO Co., Ltd)) was 700,000 mPa·s.

A polyurethane resin for wet processing (trade name: CRISVON 8006 HVLD (manufactured by DIC Corporation)) was dissolved in DMF to prepare the coating layer forming material. The solid content concentration was adjusted to be 10% by mass of the coating layer forming material.

Woolly nylon of 280 denier was knitted into a glove main body by using a 13 gauges glove knitting machine (trade name: N-SFG (manufactured by Shima Seiki Mfg., Ltd)).

The glove main body was placed on a flat board and a masking plate was placed on the glove main body. The masking plate used herein was 0.50 mm in thickness and provided with a plurality of punched holes of which inner diameter was 2 mm. The above described protrusion forming material was then supplied from an upper face of the masking plate to fill the punched holes on the masking plate with the protrusion forming material. More specifically, the protrusion forming material was placed on the upper face of the masking plate and the protrusion forming material was scraped into the punched holes with a spatula. The masking plate was then lifted away from an upper face of the glove main body. Thereafter, the flat board was heated at 180° C. for 10 minutes to thereby cure the protrusion forming material attached in a form of dispersed dots to the glove main body and form the protrusions.

The glove main body with the protrusions formed thereon was removed from the flat board, put onto a hand mold, and immersed in the coating layer forming material. This immersion process was performed in such a way that a palm region of the glove main body is immersed in the coating layer forming material while avoiding a back-of-hand region, which is a reverse face of the palm region, from being immersed as much as possible. The glove main body in which the palm region was thus impregnated with the coating layer forming material was then immersed in a water bath of 50° C. for 40 minutes. The glove was dried at 120° C. for 30 minutes, followed by removing the glove from the hand mold, thereby obtaining the non-slip finished glove of Example 1. A micrograph ofFIG. 4shows the protrusion of the non-slip finished glove of Example 1.

Comparative Example 1

In Comparative Example 1, only a coating layer, without protrusions, was formed on a glove main body. Palm Pit B0500 (trade name) (manufactured by Showa Glove Co.) was used as Comparative Example 1.

Comparative Example 2

In Comparative Example 2, a coating layer was first formed on a glove main body and protrusions were formed on the coating layer. It should be noted that the same glove main body, the same coating layer forming material, and the same protrusion forming material as those of Example 1 were used.

Comparative Examples 3 to 5

Comparative Examples 6 and 7

In Comparative Examples 6 and 7, only a coating layer made of natural rubber, without protrusions, was formed on a glove main body. 340 Fitto Gurippu [fit grip](trade name) (manufactured by Showa Glove Co.) was used as Comparative Example 6; and 310 Grip (trade name) (manufactured by Showa Glove Co.) was used as Comparative Example 7.

Moisture permeability of a palm region side of the glove was measured in Example 1 and Comparative Examples 1 to 7, respectively. The moisture permeability was measured by a method according to JIS-L-1099A-1, under conditions of 40° C. in temperature and 90% in humidity.

As a result of the moisture permeability test, it was confirmed that gloves other than Comparative Examples 6 and 7 have high moisture permeability and can prevent sweaty hand even after long-time wearing, as shown inFIG. 8.

An abrasion test was conducted for Example 1 and Comparative Examples 1 to 7, respectively, using a Gakushin-Type Rubbing Tester (a rubbing tester for color fastness RT-200 (manufactured by DAIEI KAGAKU SEIKI MFG. Co., Ltd.)) by reciprocating a sample of 20×40 mm adhered to a rubbing head (rubbed face: 20×20 mm) for 150 times on abrasive paper (WATER PROOF ABRASIVE PAPER #1500 DCC CC-Cw (manufactured by SANKYO-RIKAGAKU Co., Ltd.)) with 500 g load on the rubbing head, and then measuring abrasion loss.

As a result of the abrasion test, it was confirmed that gloves other than Comparative Examples 2, 3 and 6 had only small abrasion loss as shown inFIG. 8. These gloves can prevent deterioration due to abrasion after long-term use, and can exert an appropriate gripping force for an extended period of time.

(Measurement of Kinetic Coefficient of Friction)

A kinetic coefficient of friction was measured in Example 1 and Comparative Examples 1 to 7, respectively, according to ASTM D1894-01 Standard in such a way that: a sample was adhered to a sled of 200 g in weight and 63.5×63.5 mm in rubbed face to entirely cover the rubbed face; and then a kinetic coefficient of friction was measured under 150 mm/min pulling speed on a horizontal test plate. Measured were: a kinetic coefficient of friction between an outer face (side of protrusion of the protrusions) of the non-slip finished glove and a stainless surface; a kinetic coefficient of friction between the outer face of the non-slip finished glove and a cardboard box surface; and a kinetic coefficient of friction between an inner face (side of contact with wearer's palm) of the non-slip finished glove and a stainless surface.

As a result of the measurement, it was confirmed that the outer faces of the non-slip finished gloves of Example 1 and Comparative Example 2 showed high kinetic coefficients of friction with respect to both of the stainless surface and the cardboard, as shown inFIG. 8, and therefore it is possible to exert a high gripping force regardless of the material of the object to be gripped.

In addition, the inner faces of the non-slip finished gloves of Example 1 and Comparative Examples 1 and 2 showed extremely high kinetic coefficients of friction, allowing exertion of a sufficient friction force between the inner face of the non-slip finished glove and the palm during wearing to thereby appropriately prevent the non-slip finished gloves from sliding on a hand during grip of an object.

Example 1 and Comparative Examples 1 to 7 were evaluated by testers actually wearing the non-slip finished gloves and lifting a box of 3.0 kg (a stainless steel box or a cardboard box) by pressing opposite side faces of the box between the tester's palms and lifting the box. An outer face, an inner face, and overall grip properties of the non-slip finished gloves were rated as: A (very good); B (good); C (moderate); D (poor).FIG. 8shows averages of evaluations made by 5 testers.

As a result of the test, the outer faces of the non-slip finished gloves of Example 1 and Comparative Examples 2, 6 and 7 were highly evaluated with respect to both of the stainless steel box and the cardboard box, as shown in a row “Sensory test 1” inFIG. 8. In addition, as shown in a row “Sensory test 2” inFIG. 8, the inner faces of the non-slip finished gloves of Example 1 and Comparative Example 2 were extremely highly evaluated. Furthermore, Example 1 and Comparative Example 2 were extremely highly evaluated for the overall grip properties.

A pure bending test was conducted for Example 1 and Comparative Examples 1 to 7, by: obtaining a sample of 6 cm in width from the palm region of the non-slip finished glove; and, using a pure bending tester KES-FB2 (manufactured by KATO TECH CO., LTD.), making measurements for 5 times by bending the sample in a direction of clenching under conditions of SENS50 and bending of 2 cm−1and obtaining an average thereof. A smaller B value (softness) and a smaller 2H8value (return force) both indicate softer texture.

As a result of the pure bending test, it was confirmed that the samples of Example 1 and Comparative Examples 1, 4 and 5 were soft and not likely to give a rough sensation to a wearer upon wearing.

A test of fixation strength of protrusions was conducted for Example 1 and Comparative Example 2, according to EN ISO12947-1, using Nu-Martindale AA-K01 (manufactured by James H. Heal & co. Ltd.) as a test apparatus, by counting the number of dropped protrusions after rubbing for 50 times and 100 times (44 protrusions and 50 protrusions were fixed to a sample of Example 1 and a sample of Comparative Example 2 respectively). Abrasive paper used here was NORTON Oakey 117 Cabinet Quality Glasspaper grit 100 GRADE F2 (manufactured by Saint-Gobain Abrasives, Inc.).

As a result of the test, it was confirmed that the fixation strength of the protrusions was greater in Example 1 than in Comparative Example 2, as shown inFIG. 8, and therefore it is possible to prevent dropping of the protrusions even after long-term use and to exert an appropriate gripping force for an extended period of time.

Example 2 was configured substantially similarly to Example 1, except for the height of protrusion of the protrusions. More specifically, the height of protrusion of the protrusion was made to be 0.05 mm by using a masking plate of 0.30 mm in thickness. In Example 1, the height of protrusion of the protrusions was 0.20 mm. It should be noted that the values of thickness and the like of Examples 1 and 2 shown inFIG. 9(except for kinetic coefficients of friction) are in units of mm, and are averages of results of measurement at 5 sites using a dial thickness gauge DS-1211 (trade name) (manufactured by Niigata Seiki Co., Ltd.). The same applies to Comparative Examples 8 and 9 described later.

Comparative Example 8

In Comparative Example 8, the coating layer was formed by the same method as in Examples 1 and 2 described above, but the protrusions were not formed thereon.

In Comparative Example 9, the protrusions and the coating layer were formed by the same method as in Examples 1 and 2 described above, but the protrusions were buried in the coating layer as a result of using a masking plate of 0.18 mm in thickness.

(Measurement of Kinetic Coefficients of Friction)

A kinetic coefficient of friction between the outer face of the non-slip finished glove and a stainless steel surface; and a kinetic coefficient of friction between the outer face of the non-slip finished glove and a cardboard surface were measured in Examples 1 and 2 as well as Comparative Examples 8 and 9, according to ASTM D1894-01 Standard.

Examples 1 and 2, and Comparative Examples 8 and 9 were evaluated by testers actually wearing the non-slip finished gloves and lifting a box of 10 kg (a stainless steel box or a cardboard box) by pressing opposite side faces of the box between the tester's palms and lifting the box. An outer face of the non-slip finished gloves was rated as: A (very good); B (good); C (moderate); D (poor).

(Evaluation of Kinetic Coefficients of Friction and Sensory Test)

As a result of these tests, Examples 1 and 2 were highly evaluated for showing higher kinetic coefficient of friction with respect to both of the stainless surface and the cardboard than Comparative Examples 8 and 9, as shown inFIG. 9, allowing exertion of a high gripping force.

Example 2 was configured substantially similarly to Example 1, except for the glove main body being formed by knitting aramid spun yarn (paraphenylene terephthalamide) of yarn count equivalent to 4 (Ne), using a 10 gauges glove knitting machine (trade name: N-SFG (manufactured by Shima Seiki Mfg., Ltd)).

The glove of Example 3 was flexible, while showing non-slip properties on the inner face and the outer face thereof, as well as high resistance to cutting of level 3 measured by a testing method of EN388:2003 Protective gloves against mechanical risks, 6.1 Abrasion resistance.

INDUSTRIAL APPLICABILITY

As described above, the non-slip finished glove of the present invention is suitable for various uses, for example: wear by workers at factories; wear by workers involved in transportation; wear by drivers during driving, and wear by sport players during game.

EXPLANATION OF REFERENCE NUMERALS