JP2001192916A - Anti-slipping-processed glove - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a working glove which has an excellent gripping force and a sufficient strength as the working glove, can exhibit a sufficient holding property, even when used in an environment in which a dry state and a wet state coexist, and is rich in workability and safety. SOLUTION: This anti-slipping glove has a coating film formed of a rubber latex or resin emulsion containing spherical ceramic powder on the surface of the glove body comprising a knitted fabric or woven fabric.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work glove having a high gripping force, the surface of which is provided with a non-slip surface, and which is particularly suitable for use in an environment where a dry state and a wet state coexist.

[0002]

2. Description of the Related Art Gloves made of rubber or resin are of a so-called support type having a glove body made of, for example, cotton as a lining, and a so-called non-support type having no lining. Things are known. Among them, the support type glove is, for example, a glove body (lining) is put on a mold and immersed in a surface material solution such as rubber latex or resin emulsion, or the glove body is put on the mold by a shower method. It is produced by dripping and has higher strength than non-support type gloves. Therefore, it is particularly suitably used as heavy and light work gloves for civil engineering, construction, fishing and the like.

[0003] In such work gloves, the grip force is an important factor and has a great influence on the workability. The greater the grip force, the lighter the burden on the hands during work and the higher the safety during use. Therefore, various studies have been made to increase the grip force, and a large number of protrusions made of synthetic resin such as polyvinyl chloride (PVC) and urethane resin, natural rubber, and synthetic rubber are provided on the surface of the glove body. Gloves (registered utility model No. 30560)
No. 42), a glove provided with a plurality of convex portions made of a soft synthetic resin on the surface of a glove body (registered utility model No. 301449)
JP-A-5-5180), a glove made of a woven fabric and a polyvinyl chloride resin paste containing a foaming agent applied to the surface of the glove.
No. 4) has been proposed.

However, like the gloves described in the above publication, the surface of the glove body (lining) is simply provided with a projection made of the above material, or merely provided with a coating made of resin or rubber. Did not provide gloves having excellent gripping power. In particular, when handling both dry and wet ones, the gripping force is insufficient, the grip on wet ones is significantly reduced, and the problem of so-called slippage is remarkable. Met.

Further, as a glove having an enhanced grip force, a glove body having a thermoplastic polyurethane resin containing calcium carbonate or talc particles formed on the surface of the glove body and having a large number of fine projections on the surface (Japanese Patent Laid-Open Publication No. However, since such gloves are not a support type having a glove body (lining) but a non-support type without a lining, they are heavy and light in civil engineering, construction, fishing, and the like. The strength is not enough for work gloves.

Accordingly, an object of the present invention is to provide a working glove having sufficient strength and excellent gripping force, and even when used in an environment where a dry state and a wet state coexist. An object of the present invention is to provide a working glove that can exhibit excellent gripping properties and is excellent in workability and safety.

[0007]

Means for Solving the Problems and Effects of the Invention The present inventors have made intensive studies to solve the above-mentioned problems, and as a result, have found that the surface of a glove body made of a knitted or woven cloth as a lining is provided. When a film of rubber latex or resin emulsion containing spherical ceramic powder is formed, it has a high gripping power, and furthermore, it can maintain good gripping properties even in an environment where a dry state and a wet state coexist. The present inventors have found a new fact that the working gloves can be obtained, and therefore, have high workability and safety, and have completed the present invention.

That is, the non-slip glove according to the present invention has a glove body made of a knitted or woven fabric having a film formed on the surface of a rubber latex or a resin emulsion containing spherical ceramic powder. There is a feature. According to the non-slip gloves of the present invention, a rubber latex or resin emulsion film is formed on the surface of the glove body, thereby increasing the coefficient of friction on the surface. Since it contains, the frictional force on the surface becomes even greater, and even if the surface of the glove gets wet and the frictional force can be reduced, it shows a sufficient gripping force and excellent Demonstrate grip. Further, since the gripping property is excellent, workability and safety are also excellent.

[0009] In the anti-slip glove of the present invention, it is preferable that the spherical ceramic powder mixed with the rubber latex or the resin emulsion has an average particle diameter of 10 to 100 µm. The compounding amount of the spherical ceramic powder is preferably 10 to 100 parts by weight based on 100 parts by weight of the rubber solid content of the rubber latex or the resin solid content of the resin emulsion. When the particle diameter and the amount of the spherical ceramic powder satisfy the above ranges, the gripping force and the gripping property of the working glove can be further improved.

[0010] In the non-slip glove of the present invention, the difference in the coefficient of static friction between the dry state and the wet state of the film is 0.
In a more preferred embodiment, the ratio is not more than 05. A glove in which the difference in the coefficient of static friction between dry and wet conditions (measurement method is described later) satisfies the above range is when the surface of the object to be grasped is dry and wet. The change in grip force is sometimes small. Therefore, in an environment where a dry state and a wet state coexist, even when the surface state of the object to be grasped changes suddenly, it shows a constant grip force and graspability, and secures work safety. Can be.

[0011]

Next, the non-slip glove of the present invention will be described in detail. As described above, the non-slip processed glove of the present invention has a film formed on the surface of a glove body made of a knitted or woven fabric, using a rubber latex or a resin emulsion mixed with a spherical ceramic powder. . Such a coating is provided on the entire surface of the glove body, and provided that the glove body itself is sufficiently waterproofed, for example, it is provided only on the surface of at least the palm and the fingers of the palm. There may be.

[Glove Body] The glove body used as a backing in the working glove of the present invention is not particularly limited, and may be any of a knitted cloth and a woven cloth. You may. Further, any of those having no seams (not sewing) and those having seams may be used. The material of the glove body is not particularly limited, and natural fibers such as cotton, cotton, hemp, and wool; regenerated fibers such as cellulose; and synthetic fibers such as acetate, polyamide-based fibers, and polyester-based fibers are known in the art. Various materials can be used.

The shape of the glove body is not particularly limited, and may be, for example, a so-called straight finger shape or a so-called bent finger shape. [Coating] The coating provided at least on the palm of the working glove according to the present invention is formed by using rubber latex or synthetic resin emulsion containing spherical ceramic powder as described above.

(Rubber Latex) Examples of the rubber latex used in the above film include natural rubber (NR) latex and acrylonitrile-butadiene rubber (NBR).
Various conventionally known rubber latexes such as latex, styrene-butadiene rubber (SBR) latex, and ethyl methacrylate graft (MG) latex are exemplified. Above all, NR latex and MG latex are suitable for improving the strength of the film and the flexibility of the working gloves.

The above-mentioned natural rubber (NR) latex is a so-called deproteinized natural rubber (treated in addition to various known natural rubber latexes such as field latex and ammonia latex) which has been subjected to a treatment for removing proteins in the latex. DPNR) latex. (Resin emulsion) Examples of the resin emulsion used for the film include a vinyl chloride resin emulsion,
Examples include urethane resin emulsions.

(Additives) The rubber latex is compounded with a vulcanizing agent, a vulcanization accelerator, a vulcanization accelerating aid, and, if necessary, other additives. As a vulcanizing agent,
For example, sulfur; organic sulfur-containing compounds such as trimethylthiourea and N, N'-diethylthiourea can be used, and these can be used alone or in combination of two or more. The amount of the vulcanizing agent is determined depending on the degree of pre-vulcanization and the amount of the vulcanization accelerator and the like, and is usually 0.1% based on 100 parts by weight of the rubber solid content in the rubber latex. It is set in the range of 1 to 5 parts by weight, preferably 0.5 to 2 parts by weight.

As the vulcanization accelerator, for example, N-ethyl-
Zinc N-phenyldithiocarbamate (PX), Zinc dimethyldithiocarbamate (PZ), Zinc diethyldithiocarbamate (EZ), Zinc dibutyldithiocarbamate (BZ), Zinc salt of 2-mercaptobenzothiazole (MZ), Tetramethylthiuram disulfide (T
T) and the like. These can be used alone or in combination of two or more. The amount of the vulcanization accelerator is
For 100 parts by weight of the rubber solid content of the rubber latex, 0.
It is preferable to adjust to about 5 to 3 parts by weight.

[0018] Examples of the vulcanization accelerating aid include zinc white. The amount of the vulcanization accelerator is preferably adjusted to about 0.5 to 3 parts by weight based on 100 parts by weight of the rubber solid content of the rubber latex. On the other hand, the resin emulsion preferably contains a cross-linking agent in order to make the cross-linking property of the resin sufficient and to improve the strength of the glove. When the resin emulsion has a self-crosslinking property, the film can be formed without blending a crosslinking agent, but the blending of the crosslinking agent can further improve the strength of the glove.

Examples of the crosslinking agent include various known crosslinking agents used for processing polymers, such as zinc white, melamine resin and epoxy resin. The amount of the crosslinking agent is not particularly limited.
It is preferably 5 parts by weight. (Other Additives) In the present invention, in addition to the above additives, various conventionally known additives such as an antioxidant, a filler and a dispersant may be added to the rubber latex or the resin emulsion forming the film. You may mix.

In general, non-staining phenols are preferably used as the anti-aging agent, but amines may be used. The compounding amount is preferably about 0.5 to 3 parts by weight based on 100 parts by weight of rubber solids or resin solids. Examples of the filler include kaolin clay, hard clay, calcium carbonate and the like. The compounding amount is preferably 10 parts by weight or less based on 100 parts by weight of the rubber solid content or the resin solid content. In addition, a dispersant may be blended in order to improve the dispersion of the above-mentioned additives in the rubber latex or the resin emulsion. Examples of such a dispersant include various anionic surfactants. The compounding amount of the dispersant is preferably about 0.3 to 1.0% by weight of the weight of the component to be dispersed.

(Spherical Ceramic Powder) Spherical ceramic powder is blended with the rubber latex or resin emulsion which forms the film in the non-slip glove of the present invention, as described above. The spherical ceramic powder is not particularly limited, but has an average particle size of 10
Preferably it is あ る 100 μm. By using a spherical ceramic powder having an average particle diameter in the above range, regardless of the surface condition of the object to be gripped, a constant gripping force, a gripping property can be exhibited, and a non-slip processing with even more excellent gripping force. You can get gloves. If the average particle diameter of the spherical ceramic powder is too small, when the surface state of the object to be grasped changes suddenly, there is a possibility that a constant grip force, it may not be possible to show the graspability, or the grip force is improved. The effect may not be obtained. Conversely, if the average particle size is too large, the unevenness of the glove surface becomes remarkable, and the handleability of the glove may be reduced.

The average particle size of the spherical ceramic powder is particularly preferably 30 to 80 μm in the above range, preferably 4 to 80 μm.
More preferably, it is 0 to 70 μm. The mixing amount of the spherical ceramic powder is 1 to 100 parts by weight of the rubber solid content of the rubber latex or the resin solid content of the resin emulsion.
It is preferably from 0 to 100 parts by weight. By setting the compounding amount of the spherical ceramic powder in the above range, regardless of the surface state of the object to be gripped, a constant gripping force and gripping property can be exhibited, and the gripping force is further improved by a non-slip processing. You can get gloves. If the blending amount of the spherical ceramic powder is too small, when the surface state of the object to be grasped changes rapidly, there is a possibility that a constant grip force, it may not be possible to show the gripping property, or the effect of improving the grip force. May not be obtained. Conversely, if the blending amount is too large, the handleability of the glove may be reduced due to a decrease in the flexibility of the glove surface.

[Manufacturing method of working gloves] The working gloves according to the present invention are obtained by immersing the above-mentioned glove body in a rubber latex or resin emulsion containing spherical ceramic powder, or by applying the rubber latex or resin emulsion. The rubber latex or the resin emulsion is adhered to a desired region of the glove body by spraying it on the above-mentioned glove body, and then vulcanized or heated and dried.

The adhesion amount of the rubber latex or the resin emulsion is appropriately set according to the use of the working glove, etc., and usually, 35 to 50 per one glove is used.
g, preferably about 40 to 45 g.
Vulcanization, heating or drying after the rubber latex or resin emulsion is adhered to the surface of the glove body may be performed according to a conventional method. The film formed on the surface of the glove body may be further subjected to a polishing treatment for the purpose of making the surface unevenness due to the spherical ceramic powder more remarkable.

As a method of forming a film, in addition to the above-mentioned method, the above-mentioned rubber latex or resin emulsion is formed into a film in advance and adhered to a glove body with an adhesive, or simultaneously sewn at the time of sewing the glove body. It is also possible to adopt a method of wearing.

[0026]

The present invention will be described below with reference to examples and comparative examples. Example 1 (Preparation of latex for glove body) For 100 parts by weight of rubber solids of natural rubber latex [NR latex, total solid content (TSC) 60% by weight], zinc white (Zn)
O) 1 part by weight, 1 part by weight of zinc dibutylcarbamate (vulcanization accelerator, BZ), 1 part by weight of sulfur and 1 part by weight of potassium hydroxide are added and diluted with water to give a total solid content (T
SC) was adjusted to 50% by weight. Then, the mixture was sufficiently stirred and pre-vulcanized at 50 ° C. for 5 hours to obtain a latex for a glove body.

(Preparation of powder-containing latex) 25% -methacrylic acid graft latex (MG latex, TS
(C50%), 100 parts by weight of rubber solid content, 10 parts by weight of granular ceramic powder (particle size: 20 to 75 μm, ceramic powder manufactured by Taiheiyo Cement Co., Ltd., trade name “SL75”) 10
0 parts by weight and 200 parts by weight of water were added and sufficiently stirred to obtain a powder-containing latex.

(Manufacture of anti-slip gloves) A knitted glove made of cotton (glove body) is put on a ceramic mold, and this is put at 140 ° C.
After heating in the oven, add 1 g
The mold was pulled up and left for 60 seconds. Thus, a film of the glove body latex was formed on the entire surface of the knitted glove. Next, the glove mold was immersed in the powder-containing latex for 3 seconds to form a film of the powder-containing latex on the entire surface of the film made of the latex for the glove body.

Further, the glove mold is placed in an oven at 100 ° C., and the film formed on the surface of the knitted glove is vulcanized and dried for 60 minutes. A knitted glove made of cotton (an anti-slip glove), on which a film made of the latex was formed, was obtained. (Measurement of Coefficient of Static Friction) The coefficient of static friction μ _s was measured using a 30 mm cut out of the knitted gloves (anti-slip gloves).
A sample having a size of 80 mm was used, as shown in FIG. 1 for the dry surface, and as shown in FIG. 2 for the wet surface.

That is, the friction tester Haydon 10 [“Tribogear” manufactured by Shinto Chemical Co., Ltd., TYPE: HEIDON-10DR] was placed with the surface 2 of the sample 1 on which the film made of latex was formed facing upward. ], And a stainless steel slide table 4 (30 m
m × 80 mm) and a 200 g weight 5. next,
In the above state, the coefficient of static friction on the dry surface was measured by pulling the slide table horizontally at a speed of 50 mm / min using an autograph 6 manufactured by Shimadzu Corporation.

On the other hand, when measuring on a wet surface,
Further, the measurement was performed after the entire surface of the sample was immersed in water 7. The measurement was performed with a weight of 700
g, 1200 g and 1700 g, and a total of 4
The average of the two measured values was defined as the static friction coefficient _μs . Comparative Example 1 Acrylonitrile-butadiene rubber (NBR) powder [average particle size 50 μm, trade name “Nitrobe” manufactured by Showa Co., Ltd. was used as a powder compounded latex for 100 parts by weight of a rubber solid content of 25% -MG latex (TSC 50%). ]]
A knitted glove made of cotton (anti-slip glove) was obtained in the same manner as in Example 1 except that 100 parts by weight and 200 parts by weight of water were used.

Comparative Example 2 As a powder-containing latex, a natural rubber (NR) powder [average particle size: 45 μm, trade name: Nankai Co., Ltd., based on 100 parts by weight of rubber solid content of 25% -MG latex (TSC: 50%) Hylon "] Cotton knitted gloves (anti-slip gloves) were obtained in the same manner as in Example 1, except that 100 parts by weight and 200 parts by weight of water were added.

Comparative Example 3 As a powder-containing latex, butadiene rubber (BR) powder [average particle size: 280 μm, trade name: Atom Co., Ltd., based on 100% by weight of rubber solid content of 25% -MG latex (TSC: 50%) Rubber Saver "] 100 parts by weight,
A knitted glove made of cotton (anti-slip glove) was obtained in the same manner as in Example 1 except that water added with 200 parts by weight of water was used.

For the knitted gloves obtained in Comparative Examples 1 to 3, the coefficient of static friction was measured in the same manner as in Example 1. Table 1 shows the measurement results of the static friction coefficient in Example 1 and Comparative Examples 1 to 3.

[0035]

[Table 1] As is clear from Table 1, the anti-slip glove of Example 1 has a sufficient grip force on both the dry surface and the wet surface, and has a difference in the coefficient of static friction between when dry and when wet. However, it turned out that it is extremely small compared with the gloves of Comparative Examples 1-3. Example 1
Gloves showed a constant gripping force and gripping property even when the surface condition of the object to be gripped was changed abruptly, thereby ensuring the safety of work.

On the other hand, even though the gloves of Comparative Examples 1 to 3 had a high coefficient of friction in the dry state, the coefficient of friction in the wet state was low and the difference was extremely large. When the surface condition of the
Changes in grip force and gripping property were large, and work safety was not obtained.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a method for measuring a static friction coefficient in a dry state.

FIG. 2 is a schematic diagram showing a method of measuring a static friction coefficient when wet.

Claims (4)

[Claims] 1. A glove body made of a knitted or woven fabric,
A non-slip glove having a film formed using a rubber latex or a resin emulsion mixed with a spherical ceramic powder. 2. The spherical ceramic powder has an average particle diameter of 10 to 1
The non-slip glove according to claim 1, which has a thickness of 00 µm. 3. The non-slip processing according to claim 1, wherein the compounding amount of the spherical ceramic powder is 10 to 100 parts by weight based on 100 parts by weight of the rubber solid content of the rubber latex or the resin solid content of the resin emulsion. gloves. 4. The non-slip glove according to claim 1, wherein the difference in the coefficient of static friction between the dry state and the wet state of the coating is 0.05 or less.