JP2011231448A - Slip-resistant glove and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slip-resistant glove having antislip properties and abrasion resistance in a balanced manner, in particular, excellent in antislip properties on oil, and having a small content of anion or cation causing rust development.SOLUTION: The slip-resistant glove includes a fibrous glove and a rubber or resin coating layer over the surface of the glove, wherein recessed parts each having a width of 0.1 to 425 μm, a depth of 0.1 to 200 μm and a number density of 1,000 to 5,000 pieces/cmis formed on the surface of the coating layer.

Description

  The present invention relates to an anti-slip glove and a method for manufacturing the same, and more particularly to an anti-slip glove made of rubber or resin having a large number of extremely small recesses on the surface and having extremely excellent wear resistance, and a method for manufacturing the same.

2. Description of the Related Art Conventionally, rubber or resin gloves having a very small recess on the surface of the glove are known in order to improve the non-slip property of the glove.
For example, after adhering powder particles that dissolve in a solution that does not dissolve the solidified resin composition to the surface of an unsolidified liquid resin composition that becomes the surface of the product, the liquid resin composition is solidified and powdered. Disclosed is a glove characterized in that the skin made of the resin composition is made uneven by dissolving and removing the granules (see, for example, Patent Document 1). A glove having a large number of recesses and a method for manufacturing the same are disclosed (for example, Patent Document 2 and Patent Document 3).
In addition, as a glove having a large number of extremely small concave portions on its surface, a glove that is foamed with a chemical foaming agent or mechanically foamed rubber or resin is coated on a fibrous glove. It has been proposed (for example, Patent Document 4).

Japanese Patent No. 2639415 JP 2002-20913 A Special table 2007-52471 JP 2000-96322 A

However, the glove of Patent Document 1 has a large diameter of the concave portion provided on the surface, and the number of concave portions per unit area on the surface of the glove is small.
Further, although the gloves of Patent Documents 2 and 3 have improved anti-slip effect, they are actually not a shape in which concave and convex portions are arranged in the shape of the concave and convex portions, but are porous like sponges. Since it has a shape, there is a problem that the wear resistance is remarkably inferior.
Furthermore, since the glove of Patent Document 3 gels the salt particles by bringing them into contact with the latex and then removes the salt particles with water without curing, the latex film strength is weak and strong water washing is impossible. For this reason, the shape and number of recesses change during washing, and residual ions such as sulfate ions that cause rust, for example, cannot be removed, and the metal part in contact with the glove is rusted during work. Contains a problem. Even if the residual ions are subjected to measures such as extending the washing time, the ion concentration cannot be lowered, and the fiber glove may be discolored.
Furthermore, although the glove of patent document 4 is excellent in anti-slip properties, it is also poor in wear resistance, and furthermore, since the covering portion has a portion penetrated by air bubbles, it touches a part to which a chemical solution or the like is attached. In such a work, there is a problem that chemicals enter the inside of the glove, and there is a problem that the working environment in which the glove can be used is limited.

  In view of the above circumstances, the present invention provides a glove in which a large number of extremely small recesses are provided on the surface of a coating layer made of rubber or resin, with a specific width and a specific depth on the surface of the coating layer. The purpose of the present invention is to provide a glove that is excellent in anti-slip property by forming a concave portion of density, has excellent wear resistance without impairing workability, and particularly excellent in anti-slip property when in contact with oil. And

The present invention has been made to solve the above problems, and claim 1 of the present invention comprises a fiber glove and a coating layer of rubber or resin on the surface thereof, and a width of 0.1 on the surface of the coating layer. A non-slip glove characterized by being provided with recesses of ˜425 μm, a depth of 0.1 to 200 μm, and a number density of 1000 to 5000 / cm ² .

  According to a second aspect of the present invention, the anti-slip glove according to the first aspect is characterized in that the coating layer contains a film forming aid.

A third aspect of the present invention includes the anti-slip glove according to the first or second aspect, wherein at least one of the following residual ions in the coating layer has the following content.
Sulfate ion 100 ppm or less Nitrate ion 50 ppm or less Chlorine ion 1000 ppm or less Sodium ion 1000 ppm or less Ammonium ion 50 ppm or less.

  According to claim 4 of the present invention, a coating layer is formed on the surface of a fiber glove covered with a hand mold by using a rubber or resin compounding solution containing a film forming aid, and then the coating layer embeds soluble fine particles, The coating layer embedded with the soluble fine particles is pre-cured by heating, and further, the soluble fine particles are dissolved and removed from the coating layer, and then the coating layer is main-cured by heating. The manufacturing method of non-slip gloves is included.

  Claim 5 of the present invention forms a coating layer with a rubber or resin compounding liquid containing a film forming aid on the surface of a fiber glove put on a hand mold, and then the coating layer embeds soluble fine particles, The anti-slip glove according to claim 1, wherein the coating layer in which the soluble fine particles are embedded is cured by heating, and further, the soluble fine particles are dissolved and removed from the coating layer, and then the coating layer is dried. The manufacturing method is as follows.

  Claim 6 of the present invention is characterized in that the soluble fine particles are dissolved and removed by releasing a glove obtained by pre-curing the coating layer embedded with the soluble fine particles by heating from the hand mold. The manufacturing method of non-slip gloves is included.

  Claim 7 of the present invention is characterized in that the soluble fine particles are dissolved and removed by releasing a glove obtained by curing the coating layer embedded with the soluble fine particles by heating from the hand mold. The content of the manufacturing method is a glove.

  The eighth aspect of the present invention includes the method for producing a non-slip glove according to any one of the fourth to seventh aspects, wherein the soluble fine particles are dissolved and removed by a drum washer.

  According to a ninth aspect of the present invention, the film forming aid is a compound having a cloud point of 30 to 40 ° C., and is contained in an amount of 0.05 to 20 parts by weight based on 100 parts by weight of the solid content of rubber or resin. The manufacturing method of the anti-slip | skid glove of any one of Claims 4-8 made into content.

  According to a tenth aspect of the present invention, the film forming aid is an alcohol compound and is contained in an amount of 5 to 25 parts by weight based on 100 parts by weight of the solid content of rubber or resin. The manufacturing method of the glove according to item 1.

  The eleventh aspect of the present invention includes the method for producing a glove according to any one of the fourth to tenth aspects, wherein the soluble fine particles are sodium sulfate.

According to the present invention, concave portions having a width of 0.1 to 425 μm, a depth of 0.1 to 200 μm, and a number density of 1000 to 5000 / cm ² are formed on the surface of the rubber or resin coating layer on the fiber glove surface. Therefore, an anti-slip glove having excellent anti-slip property, particularly when it is in contact with oil, and having significantly improved wear resistance is provided.

  In addition, according to the present invention, a glove having a small content of sulfate ion, nitrate ion, chlorine ion, sodium ion, ammonium ion, etc. can be provided, and rusting of the metal part due to contact with the glove during work can be prevented. Can do.

  Further, according to the method for manufacturing a glove of the present invention, since the coating strength is increased by pre-curing or curing the coating layer in which the soluble fine particles are embedded, the soluble fine particles are dissolved and removed. A glove having a desired anti-slip can be manufactured without being affected by the removal and without changing the shape and number of the recesses.

  In addition, as described above, since the coating strength is increased, the gloves can be removed from the hand mold and powerfully dissolved and removed using a drum washer, etc., and the above-mentioned harmful residual ions can be greatly reduced. Even if the glove contacts the metal part during work, the metal part is not rusted.

It is an enlarged photograph (100 times) which image | photographed the surface of the palm part of the glove of Example 3 from right above by DIGITAL MICROSCOPE VHX-900 (made by KEYENCE). It is an enlarged photograph (100 times) which image | photographed the cross section of the palm part of the glove of Example 3 from right above by DIGITAL MICROSCOPE VHX-900 (made by KEYENCE). It is an enlarged photograph (100 times) which image | photographed the surface of the palm part of the glove of the comparative example 1 from right above by DIGITAL MICROSCOPE VHX-900 (made by KEYENCE). It is an enlarged photograph (100 times) which photographed the section of the palm part of the glove of comparative example 1 from right above by DIGITAL MICROSCOPE VHX-900 (made by KEYENCE). It is an enlarged photograph (100 times) which image | photographed the surface of the palm part of the glove of the comparative example 2 from right above by DIGITAL MICROSCOPE VHX-900 (made by KEYENCE). It is an enlarged photograph (100 times) which photographed the cross section of the palm part of the glove of comparative example 2 from right above by DIGITAL MICROSCOPE VHX-900 (made by KEYENCE). It is an enlarged photograph (100 times) which image | photographed the surface of the palm part of the glove of the comparative example 7 from right above by DIGITAL MICROSCOPE VHX-900 (made by KEYENCE). It is an enlarged photograph (100 times) which photographed the cross section of the palm part of the glove of comparative example 7 from right above by DIGITAL MICROSCOPE VHX-900 (made by KEYENCE). It is the photograph which image | photographed the surface of the palm part of the glove of Example 3 after a wear-resistance test with the digital camera from right above. It is the photograph which image | photographed the surface of the palm part of the glove of the comparative example 2 after an abrasion resistance test with the digital camera from right above. It is the photograph which image | photographed the surface of the palm part of the glove of the comparative example 7 after an abrasion resistance test with the digital camera from right above. It is the schematic which shows the hex socket head bolt and hex nut which were used for evaluation of anti-slip property.

The anti-slip glove of the present invention comprises a fiber glove and a rubber or resin coating layer on the surface thereof. The surface of the coating layer has a width of 0.1 to 425 μm, a depth of 0.1 to 200 μm, and a number density of 1000. It is characterized in that a recess of ˜5000 pieces / cm ² is provided.

  Using the DIGITAL MICROSCOPE VHX-900 (manufactured by KEYENCE) to enlarge the surface of the coating layer for the width and number density of the recesses on the surface of the coating layer of the glove and the cross section of the coating layer for the depth. Observed and measured.

The width of the recesses needs to be 0.1 to 425 μm, preferably 0.1 to 300 μm, more preferably 75 to 300 μm, and at least 99.5% of all the recesses have a width of 300 μm or less. The width of the concave portion is the width of the trace (recessed portion) from which the embedded soluble fine particles have escaped, and therefore is substantially the same as the particle size distribution of the fine particles, and can therefore be controlled by the particle size distribution of the soluble fine particles. The proportion of recesses with a width smaller than 0.1 μm is extremely small, and even if it is slightly present, the anti-slip effect is hardly affected, and if it exceeds 425 μm, the anti-slip effect is significantly reduced. .
The width of the concave portion means that two arbitrary points are set on the outer periphery when the concave portion is viewed from directly above, and indicates the maximum of the linear distances, and 1 mm ^{2 at} an arbitrary point on the surface of the coating layer. The widths of all the recesses present in the are measured and indicated by the minimum value and the maximum value of the measured values.

The depth of the concave portion needs to be 0.1 to 200 μm, preferably 30 to 200 μm, more preferably 30 to 150 μm. The depth of the recess can be controlled by the particle size distribution of the soluble fine particles and the gelation speed by the addition of a film forming aid. If the depth is less than 0.1 μm, the significance of providing the concave portion is lost and the intended effect cannot be obtained. If the depth is greater than 200 μm, the wear resistance may be lowered or the coating layer may be penetrated.
The depth of the recess means the lowest point of the gap located on the fiber glove side among the gaps existing in the coating layer when the cross section of the glove is observed with the coating layer on top and the fiber glove on the bottom. It refers to the distance from the surface of the glove (the surface of the coating layer), and indicates the minimum and maximum values of the depth when measuring a 2 mm wide cross section at any 10 locations on the coating layer.

The number density of the concave portions needs to be 1000 to 5000 pieces / cm ² , preferably 1000 to 4000 pieces / cm ² , more preferably 1500 to 3500 pieces / cm ² . When the number density is less than 1000 pieces / cm ² , a sufficient anti-slip effect, particularly an anti-slip effect against oil, cannot be obtained, while it is extremely difficult to produce gloves exceeding 5000 pieces / cm ^2. It is. The number density can be controlled by the particle size distribution of the soluble fine particles.
The number density of recesses is the number of recesses present in an arbitrary 1 mm ² on the surface of the coating layer, which is performed at 10 locations on the surface of the coating layer, and the maximum value and minimum value among the 10 measured values obtained. The average value of the eight measured values excluding the value is calculated, and this average value is multiplied by 100 to obtain the number of recesses per 1 cm ² .

  The sulfate ion content in the coating layer of the glove of the present invention is preferably 100 ppm or less, more preferably 50 ppm or less, still more preferably 30 ppm or less, and the sodium ion content is preferably 1000 ppm or less, more preferably 700 ppm or less, still more preferably. Is 50 ppm or less, the chlorine ion content is preferably 1000 ppm or less, more preferably 100 ppm or less, still more preferably 30 ppm or less, the ammonium ion content is preferably 50 ppm or less, and the nitrate ion content is preferably 50 ppm or less. . If the content of these ions exceeds the above range, the metal part may rust when the glove contacts the metal part during work.

  The anti-slip glove of the present invention is formed by forming a coating layer on a surface of a fiber glove covered with a hand mold by using a rubber or resin compounding solution containing a film-forming aid, and then the coating layer is embedded with soluble fine particles. The coating layer in which the soluble fine particles are embedded is pre-cured by heating, and further, the soluble fine particles are dissolved and removed from the coating layer, and then the coating layer is main-cured by heating.

  First, a coating layer is formed on a surface of a fiber glove put on a hand mold by using a rubber or resin compounding liquid containing a film forming aid. Various types of fibers can be applied to the gloves made of fiber. Known filament yarn or spun yarn such as cotton, polyester, polyurethane, high-strength stretched polyethylene such as Dyneema (registered trademark), aramid, such as Kevlar (registered trademark), etc. Gloves, knitted fabrics, woven fabrics, gloves made by sewing non-woven fabrics, etc. that are seamlessly knitted alone or in combination can be used.

  As rubber or resin, natural rubber (NR), nitrile butadiene rubber (NBR), chloroprene rubber (CR), acrylic resin, urethane resin, styrene butadiene rubber (SBR), isoprene rubber (IR), butyl rubber (IIR), chloride Examples include vinyl resin (PVC). These are generally aqueous dispersion latexes, but can also be used in solvent-based solutions and solvent-based dispersions.

  Among the above rubbers or resins, NBR which is general purpose and inexpensive is preferable. Commercially available NBRs include Nipol (registered trademark) Lx-550 (manufactured by Nippon Zeon Co., Ltd.), Nipol (registered trademark) Lx-551 (manufactured by Nippon Zeon Co., Ltd.), Nipol (registered trademark) Lx-550L (Nihon Zeon). Nipol (registered trademark) Lx-556 (manufactured by Zeon Corporation), PERBUNAN (registered trademark) N LATEX VT-LA (manufactured by Polymer Latex), PERBUNAN (registered trademark) N LATEX X 1130 (Polymer Latex) PERBUNAN (registered trademark) N LATEX X 1138 (PolymerLatex), PERBUNAN (registered trademark) N LATEX X 1150 (Polymer Latex), PERBUNAN (registered trademark) N LATEX X 1172 (Polymer Latex) , PERBUNAN (registered trademark) N LATEX 2000 (manufactured by Polymer Latex), PERBUNAN (registered trademark) N LATEX426C (manufactured by Polymer Latex), Synthomer (registered trademark) 6810 (manufactured by Synthomer), Synthomer (registered trademark) 6311 (Synthomer) ), Synthomer (registered trademark) 6501 (Synthomer), S ynthomer (registered trademark) 6617 (manufactured by Synthomer), Synthomer (registered trademark) 6710 (manufactured by Synthomer) and the like can be used. These may be used alone or in combination of two or more as required.

These are preferably blended with additives used in general rubber, that is, metal oxide, vulcanization accelerator, sulfur, surfactant, anti-aging agent, filler and the like.
Examples of the metal oxide include zinc oxide, lead oxide, and trilead tetraoxide. These may be used alone or in combination of two or more as required. The compounding amount of the metal oxide is preferably 1 to 3 parts by weight with respect to 100 parts by weight of the solid content of the rubber latex. If it is less than 1 part by weight, sufficient strength cannot be obtained, so that it is difficult to obtain the basic properties of tensile strength and modulus. If it exceeds 3 parts by weight, the modulus becomes too high and the feel becomes stiff when used as a glove. Tend.

As the vulcanization accelerator, for example, thiuram, dithiocarbamate, thiourea, and guanidine vulcanization accelerators can be used. Of these, thiuram and dithiocarbamate are preferable. Examples of thiuram-based vulcanization accelerators include tetraethylthiuram disulfide and tetrabutylthiuram disulfide. Examples of the dithiocarbamate vulcanization accelerator include sodium dibutylthiodicarbamate, zinc dibutylthiodicarbamate, and zinc diethylthiodicarbamate. These may be used alone or in combination of two or more as required.
The blending amount of the vulcanization accelerator is preferably 0.1 to 3.0 parts by weight with respect to 100 parts by weight of the solid content of the rubber latex. If it is less than 0.1 parts by weight, the effect of promoting vulcanization is not sufficient, and if it exceeds 3.0 parts by weight, even if it is a glove, it becomes a glove having a hard touch, or the initial vulcanization proceeds, causing a scorch phenomenon, etc. The problem may occur.

  When vulcanization is insufficient with only the vulcanization accelerator, sulfur is usually used in combination. As for the compounding quantity of sulfur, 0.1-3.0 weight part is preferable with respect to 100 weight part of solid content of rubber latex. If less than 0.1 part by weight, crosslinking is not sufficient, so that it is difficult to obtain the basic properties of tensile strength and modulus, and if it exceeds 3.0 parts by weight, the modulus is too high and the tactile sensation when used as a glove Tend to be.

Examples of the emulsifier include sodium alkyl sulfate, sodium alkylbenzene sulfonate, sodium naphthalene sulfonate formaldehyde condensate, rosin acid soap, and fatty acid soap. These may be used alone or in combination of two or more as required.
The blending amount of the emulsifier is preferably 0.1 to 10.0 parts by weight with respect to 100 parts by weight of the solid content of the rubber latex. If the amount is less than 0.1 parts by weight, the stability of the latex tends to be insufficient, and if it exceeds 10.0 parts by weight, the latex tends to be too stable and a coating tends to be difficult to form.

Anti-aging agents include naphthylamine, diphenylamine, p-phenylenediamine, quinoline, hydroquinone derivative, monophenol, bisphenol, polyphenol, imidazole, dithiocarbamate nickel salt, phosphite, Examples include organic thioacid-based compounds and thiourea-based compounds. These may be used alone or in combination of two or more as required.
The blending amount of the antioxidant is preferably 0.5 to 3.0 parts by weight with respect to 100 parts by weight of the solid content of the rubber latex. If the amount is less than 0.5 parts by weight, it is difficult to obtain a sufficient effect of delaying the deterioration. If the amount exceeds 3.0 parts by weight, the effect of particularly delaying the deterioration does not increase, and the strength further decreases. In some cases.

Examples of inorganic fillers include oxide fillers, carbonate fillers, silicate fillers, and nitride fillers. Examples of the oxide filler include silica, titanium oxide, magnesium oxide, diatomaceous earth, alumina, iron oxide, tin oxide and the like. Among these, silica, titanium oxide, and iron oxide are preferable. Examples of the carbonate-based filler include calcium carbonate, magnesium carbonate, and zinc carbonate, among which calcium carbonate is preferable. Silicate fillers include aluminum silicates such as clay, kaolinite and pyrophyllite, magnesium silicates such as talc, calcium silicates such as wollastonite and zonotlite, bentonite, glass beads and glass fibers. Of these, aluminum silicate, magnesium silicate, and bentonite are preferable. These may be used alone or in combination of two or more as required.
The blending amount of the filler is preferably 1 to 40 parts by weight with respect to 100 parts by weight of the solid content of the rubber latex. If the amount is less than 1 part by weight, the effect of the filler cannot be obtained so much, and if it exceeds 40 parts by weight, the stability of the rubber latex may be impaired.

In the present invention, additives other than the above, for example, pigments, colorants, wetting agents, plasticizers, antifoaming agents, and the like can be appropriately blended as necessary.
The viscosity of the blend obtained as described above is preferably 1000 to 3500 mPa · sec, more preferably 1500 using a carboxylic acid thickener, a cellulose thickener, a polysaccharide thickener and the like. It is preferable to adjust to ˜3000 mPa · sec, more preferably 2000 to 3000 mPa · sec. When the viscosity is less than 1000 mPa · s, the raw material penetrates into the inside of the fibrous glove at the time of making the glove, and there is a tendency that the touch feeling when it is made into a glove tends to be extremely bad. Tends to be inefficient gloves.

In the present invention, a film-forming aid is added to the basic composition obtained as described above. The film-forming aid affects the gelation speed due to the coagulant and heat, and is necessary to achieve the width, depth and number density of the recesses that are the object of the present invention. As such a film forming aid, a film forming aid made of a compound having a cloud point of 30 to 40 ° C. or a film forming aid made of an alcohol compound is preferable. If the cloud point exceeds 40 ° C, the gelation speed of the latex due to heat decreases, and a recess having the desired depth cannot be obtained. On the other hand, if it is less than 30 ° C, the gelation speed of the latex is fast and the raw material becomes unstable. There is a risk of inviting.
As the film-forming aid made of a compound having a cloud point of 30 to 40 ° C., polyvinyl methyl ether (34 ° C.) and functional organopolysiloxane (35 ± 5 ° C.) are preferable. Here, the functional organopolysiloxane is an organosiloxane having a lower alkoxy group, a polyoxy lower alkylene group, a poly lower alkylene amino group or a derivative thereof as a functional group, and in particular, an alkylene oxide added. preferable. Further, it may be a modified product of this functional polyorganosiloxane. These may be used alone or in combination of two or more as required.
The addition amount of the film-forming aid comprising a compound having a cloud point of 30 to 40 ° C. is 0.05 to 20 parts by weight, preferably 0.05 to 5 parts by weight, more preferably 0.1 to 1 part by weight, Preferably it is 0.2-0.5 weight part. If it is less than 0.05, it is difficult to produce a glove having a concave portion, which is the object of the present invention, and if it exceeds 20 parts by weight, blisters tend to occur and the defect rate becomes high, which is not preferable.

As the film-forming aid composed of an alcohol compound, a compound having a plurality of alcoholic hydroxyl groups such as alcohol, polyol and ether polyol is used. Specifically, 2,2,4-trimethyl-1,3- Pentanediol monoisobutyrate, diethylene glycol monoethyl ether, diethylene glycol monoethyl ether acetate, diethylene glycol monobutyl ether, diethylene glycol monobutyl ether acetate, diethylene glycol dibutyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol monobutyl ether acetate, hexylene Examples include glycol, benzyl alcohol, and isopropyl alcohol. These may be used alone or in combination of two or more as required.
The addition amount of the film-forming aid made of an alcohol compound is preferably 5 to 25 parts by weight, and more preferably 10 to 25 parts by weight. If the amount is less than 5 parts by weight, it is difficult to produce a glove having a concave portion, which is the object of the present invention, and if it exceeds 25 parts by weight, blisters are likely to occur and the defect rate increases, which is not preferable.

  Dissolving fine particles are embedded in the coating layer formed as described above. As the soluble fine particles, water or a solvent, preferably those soluble in water are suitably used. For example, metal salts such as sodium chloride, sodium bicarbonate, sodium carbonate, calcium nitrate, sodium phosphate, calcium carbonate, sodium nitrate, sodium sulfate, sugars such as granulated sugar, organic acids such as citric acid and ascorbic acid, In addition, a wax etc. are mentioned, These are used individually or in combination of 2 or more types as needed. However, for example, when a commercially available product such as sodium chloride is obtained, the particle size is often around 500 μm, and it is necessary to work such as crushing the particles to satisfy the following particle size. Therefore, sodium sulfate which does not require such pulverization and can be easily prepared is most preferable.

The particle diameter of the soluble fine particles is preferably 0.1 to 425 μm, more preferably 0.1 to 300 μm, and still more preferably 75 to 300 μm. Furthermore, it is preferable that the particle diameter of at least 99.5% of all the used particles is 300 μm or less.
Here, the particle size is a value obtained by measurement based on the British standard (BS812: Part103: 1985) using an apparatus manufactured by Endecotts.

The adhesion amount of the soluble fine particles to the coating layer is an amount sufficient to adhere to and embed the area of the coating layer on which the soluble fine particles adhere, that is, the area of the coating layer forming the recess. Therefore, the adhesion amount of the soluble fine particles varies depending on the area where the fine particles are adhered and embedded and the number density of the concave portions to be formed.
The soluble fine particles are embedded in the coating layer before the coating layer is pre-cured. As the method of embedding, methods such as fluid dipping, electrostatic coating, spraying, and sprinkling are used.

  Next, the coating layer in which the soluble fine particles are embedded is pre-cured by heating. The pre-curing is to give the coating layer strength that does not cause the coating layer to flow away or deform in the next dissolution and removal step. Usually, the solid content of the coating layer is preferably 65 to 100%, More preferably 70 to 100%, and still more preferably 85 to 100%. Specifically, it is heated at 100 to 150 ° C. for about 5 to 10 minutes.

Next, the soluble fine particles embedded in the coating layer are dissolved and removed with water or a solvent. Removal of the soluble fine particles is preferably performed by washing with water or warm water. Since the strength of the coating layer is increased by the preliminary curing, it can be dissolved and removed under strong conditions. If necessary, the glove can be removed from the hand mold and dissolved and removed with a drum washer, etc. It is.
In this case, for example, in order to obtain a glove that prevents rusting of the metal part due to contact during work, it is preferable to wash so that the content of anions and cations that cause rusting is as low as possible. The sulfate ion is preferably 100 ppm or less, the nitrate ion is 50 ppm or less, the chlorine ion is 1000 ppm or less, the sodium ion is 1000 ppm or less, and the ammonium ion is preferably 50 ppm or less.

Next, the coating layer in which the soluble fine particles are removed and the concave portions that are traces of the fine particles are formed is finally cured by heating. The coating layer in which the concave portions are formed by the main curing is cured, and the width, depth, and number density of the formed concave portions are maintained. The main curing is usually performed at 100 to 160 ° C. for 15 to 60 minutes.
The fully cured glove is released from the hand mold. The resulting glove has a good balance of anti-slip and wear resistance, has a low content of anions and cations that cause rusting, and even when it comes into contact with the metal part when wearing gloves Rusting of the metal part is prevented.
In place of the above-described preliminary curing, dissolution removal, and main curing methods, curing (main curing), dissolution removal, and drying methods may be employed.

  EXAMPLES Hereinafter, although an Example demonstrates this invention further in detail, this invention is not limited to these Examples at all.

Example 1
Nylon seamless gloves knitted with a 13 gauge knitting machine are put on a metal hand mold, heated to 70 ° C., and immersed in a coagulant bath composed of 100 parts by weight of methanol and 1.0 part by weight of calcium nitrate. The hand mold surface temperature immediately before immersion in the rubber compounding solution was adjusted to 38 ° C. by leaving it at room temperature of 30 to 40 ° C. for 30 seconds.
On the other hand, TPA-4380 (manufactured by GE Toshiba Silicone Co., Ltd., cloud point: 35 ° C.) is added to the rubber compounding solution shown in Table 1 as an alkylene oxide-modified organopolysiloxane that is a film forming aid. It was immersed in the bathtub of the rubber | gum compounding liquid which added 0.05 weight part with respect to the, and pulled up from the bathtub. Then, it was left to stand at room temperature for 20 seconds and immersed in a fluidized immersion tank filled with sodium sulfate having a particle size of 0.1 to 300 μm as soluble fine particles. Thereafter, it was preliminarily cured by heating at 100 ° C. for 10 minutes, washed with water with 35 ° C. lukewarm water for 60 minutes to dissolve and remove soluble fine particles, and then heated at 135 ° C. for 30 minutes for main curing. Thereafter, the mold was released from the hand mold to obtain a glove.

Example 2
A glove was obtained in the same manner as in Example 1 except that the addition amount of the alkylene oxide-modified organopolysiloxane TPA-4380 was changed to 0.10 parts by weight.

Example 3
A glove was obtained in the same manner as in Example 1 except that the addition amount of the alkylene oxide-modified organopolysiloxane TPA-4380 was changed to 0.25 parts by weight.
Fig. 1 shows a magnified photo (100x) taken from directly above the palm surface of the resulting glove with DIGITAL MICROSCOPE VHX-900 (manufactured by KEYENCE). ) Is shown in FIG. As shown in FIGS. 1 and 2, the recess is formed on the surface of the coating layer, and the porous layer is not substantially formed inside the coating layer.

Example 4
A glove was obtained in the same manner as in Example 1 except that the addition amount of the alkylene oxide-modified organopolysiloxane TPA-4380 was changed to 1.00 parts by weight.

Example 5
A glove was obtained in the same manner as in Example 1 except that the addition amount of the alkylene oxide-modified organopolysiloxane TPA-4380 was 2.50 parts by weight.

Example 6
A glove was obtained in the same manner as in Example 1 except that the addition amount of the alkylene oxide-modified organopolysiloxane TPA-4380 was changed to 5.00 parts by weight.

Example 7
A glove was obtained in the same manner as in Example 1 except that the addition amount of the alkylene oxide-modified organopolysiloxane TPA-4380 was 10.00 parts by weight.

Example 8
A glove was obtained in the same manner as in Example 1 except that the addition amount of the alkylene oxide-modified organopolysiloxane TPA-4380 was changed to 18.00 parts by weight.

Example 9
A glove was obtained in the same manner as in Example 1 except that the amount of the alkylene oxide-modified organopolysiloxane TPA-4380 was 0.25 parts by weight, and sodium sulfate adjusted to a particle size of 100 to 200 μm was used as the soluble fine particles. It was.

Example 10
A glove was obtained in the same manner as in Example 1 except that the amount of addition of the alkylene oxide-modified organopolysiloxane TPA-4380 was 0.25 parts by weight, and sodium sulfate adjusted to a particle size of 75 to 250 μm was used as the soluble fine particles. It was.

Example 11
Example except that 1.00 parts by weight of polyvinyl methyl ether (PVME) Lutonal (registered trademark, manufactured by M / BASF Corporation, cloud point: 34 ° C.) was added to the rubber compounding solution described in Table 1 as a film forming aid. A glove was obtained in the same manner as in 1.

Example 12
A glove was obtained in the same manner as in Example 1 except that 5.00 parts by weight of polyvinyl methyl ether (PVME) Lutonal (registered trademark, manufactured by M / BASF Corporation, cloud point: 34 ° C.) was added.

Example 13
A glove was obtained in the same manner as in Example 1 except that 0.25 parts by weight of siloxane-based Coagulant WS (manufactured by LANXESS, cloud point: 38 ° C.)) was added as a film forming aid.

Example 14
A glove was obtained in the same manner as in Example 1 except that 5.00 parts by weight of Coagulant WS was added.

Example 15
A glove was obtained in the same manner as in Example 1 except that 10.00 parts by weight of Coagulant WS was added.

Example 16
A glove was obtained in the same manner as in Example 1 except that 6.00 parts by weight of butylsenol 20 acetate (Kyowa Hakko Chemical Co., Ltd.), which is diethylene glycol monobutyl ether acetate, was added as a film forming aid.

Example 17
As in Example 1, except that 10.00 parts by weight of 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate Kyowanol-M (Kyowa Hakko Chemical Co., Ltd.) was added as a film forming aid. I got gloves.

Example 18
A glove was obtained in the same manner as in Example 1 except that 20.00 parts by weight of butylsenol 20 acetate which is diethylene glycol monobutyl ether acetate was added.

Example 19
Same as Example 1 except that the rubber compounding solution shown in Table 1 used in Example 1 was changed to the resin compounding solution shown in Table 2, and the crosslinking at 135 ° C. for 30 minutes was changed to drying at 115 ° C. for 20 minutes. And got gloves.

Example 20
In Example 1, 0.25 parts by weight of an alkylene oxide-modified organopolysiloxane, TPA-4380 (manufactured by GE Toshiba Silicone Co., Ltd., cloud point: 35 ° C.), which is a film forming aid, is used with respect to 100 parts by weight of rubber solid content. The pre-curing is changed to main curing by heating at 110 ° C. for 15 minutes and further at 130 ° C. for 15 minutes. After the main curing, the fine particles are washed with 40 ° C. lukewarm water for 30 minutes to dissolve and remove soluble fine particles. After that, a glove was obtained in the same manner as in Example 1 except that it was dried at 130 ° C. for 20 minutes.

Comparative Example 1
A glove was obtained in the same manner as in Example 1 except that no film forming aid was added and no soluble fine particles were used.
Fig. 3 shows an enlarged photograph (100x) taken from above the palm surface of the resulting glove with DIGITAL MICROSCOPE VHX-900 (manufactured by KEYENCE). ) Is shown in FIG.

Comparative Example 2
A glove was obtained in the same manner as in Example 1 except that the film forming aid was not added.
Fig. 5 shows a magnified photograph (100x) taken from above the palm surface of the resulting glove with DIGITAL MICROSCOPE VHX-900 (manufactured by KEYENCE). ) Is shown in FIG.

Comparative Example 3
A glove was obtained in the same manner as in Example 1 except that 0.01 parts by weight of polyvinyl methyl ether (PVME) Lutonal was added.

Comparative Example 4
A glove was obtained in the same manner as in Example 1 except that 50.00 parts by weight of alkylene oxide-modified organopolysiloxane TPA-4380 was added.

Comparative Example 5
A glove was obtained in the same manner as in Example 1 except that 2.00 parts by weight of Kyowanol-M was added.

Comparative Example 6
A glove was obtained in the same manner as in Example 1 except that 30.00 parts by weight of Kyowanol-M was added.

Comparative Example 7
A glove was obtained in the same manner as in Example 1 except that no film-forming auxiliary was added and sodium chloride having a particle diameter adjusted to 500 to 1000 μm was used as the soluble fine particles.
Fig. 7 shows an enlarged photograph (100x) taken from above the palm surface of the resulting glove with DIGITAL MICROSCOPE VHX-900 (manufactured by KEYENCE). ) Is shown in FIG.

Comparative Example 8
A glove was obtained in the same manner as in Example 1 except that the addition amount of alkylene oxide-modified organopolysiloxane TPA-4380 was 0.25 parts by weight and sodium chloride adjusted to a particle size of 500 to 1000 μm was used as the soluble fine particles. It was.

Comparative Example 9
A glove was obtained in the same manner as in Example 19 except that no film forming aid was added and no soluble fine particles were used.

  About the glove obtained in the said Examples 1-20 and Comparative Examples 1-9, the outline | summary of each manufacture is shown in Table 3, Table 4. In addition, the width | variety, depth, and number density of a recessed part were measured or counted by the above-mentioned method. Tables 3 and 4 show the results obtained by measuring and evaluating the anti-slip property, abrasion resistance and blister of the glove by the following methods together with the thickness of the coating layer.

(1) Non-slip test SUNOCO IRM 903 (manufactured by SUN OIL COMPANY, hereinafter “test oil”), which is an industrial oil, is poured into a 100 mL beaker, and as shown in FIG. A set of screws consisting of a bolt and a hexagon nut (hereinafter “screw set A”) and a set of screws consisting of a hexagon socket bolt and a hexagon nut called M6 (hereinafter “screw set B”) were inserted. . Thereafter, the two sets of screws were taken out from the oil bath on a petri dish using tweezers.
The time when the screw set was taken out was set to 0 second, and the time required for a series of operations until the two sets of screw sets were assembled and removed was measured.
Here, the screw set A called M4 is a steel hexagon socket head cap screw and a corresponding hexagon nut, and the screw thread interval of the bolt is 0.7 mm. 0.0 mm, ds is 4.0 mm, t is 2 mm, k is 4.0 mm, l is 25 mm, s is 3 mm, and e is 3.4 mm.
Further, the screw set B called M6 is a steel hexagon socket head cap screw and a corresponding hexagon nut, and the screw thread spacing of the bolt is 1.0 mm. 0.0 mm, ds is 6.0 mm, t is 3 mm, k is 6.0 mm, l is 25 mm, s is 6 mm, and e is 5.7 mm.
Incidentally, the shorter the measurement time, the better the assembly workability when using the OIL. The time was measured by 10 subjects and the average value (sec) was shown.

(2) Abrasion resistance test Abrasion resistance test was conducted according to European standard EN 388. Nu-Martindale Abrasion and Pilling Tester Model 406-6 Positions (manufactured by James H. Heal & Co. Ltd.) were used as the test machine. In addition, at the time of the test, a test piece cut out to φ40 mm and a sandpaper (OAKEY GLASS PAPER F2, # 100, manufactured by SAINT-GOBA IN ABRASIVES LTD.) Were prepared, and the test was carried out with a frictional load of 9 kPa. The weight of the specimen before and after 2000 wears was measured.
Then, the difference between the weight of the test piece before the start of wear and the weight of the test piece at the time of 2,000 wear was calculated, and the wear strength was judged from the amount of decrease in the test piece due to wear (hereinafter referred to as “wear reduction amount”).
Therefore, the smaller the amount of wear reduction, the better the wear resistance.
9, 10, and 11 are photographs obtained by photographing the palm surface of each glove of Example 3, Comparative Example 2, and Comparative Example 7 after the abrasion resistance test with a digital camera from directly above.

(3) Evaluation of blister The coating layer was visually observed and the presence or absence of the blister was measured.

As is apparent from Table 3, the gloves of the present invention represented by Examples 1 to 20 are excellent in anti-slip properties and wear resistance, and no blisters are observed.
On the other hand, the gloves of Comparative Example 1 and Comparative Example 9 that do not use the film forming aid and the soluble fine particles are inferior in slip resistance. Moreover, the glove of the comparative example 2 which does not use the film-forming auxiliary | assistance and uses the soluble fine particle has the depth of a recessed part too large, and is inferior to abrasion resistance. Further, the gloves of Comparative Example 3 and Comparative Example 5 with a small amount of film-forming auxiliary added have a recess having a too large depth and poor wear resistance, while Comparative Example 4 with a large amount of film-forming auxiliary added. Blisters are observed in the gloves of Comparative Example 6. Further, the glove of Comparative Example 7 using NaCl having a large particle size as a soluble fine particle without using a film forming aid has a width of the concave portion that is too large, so that the number density becomes too small, and slip resistance is improved. In both cases, the abrasion resistance is inferior, and in this case, the gloves of Comparative Example 8 using a film-forming aid have the same result. In Comparative Examples 7 and 8, the thickness of the coating layer is as thin as about half, but the reason is unknown.

Moreover, the enlarged photograph (FIG. 1, FIG. 2) about the glove of Example 3, the enlarged photograph (FIG. 3, FIG. 4) about the glove of Comparative Example 1, the enlarged photograph about the glove of Comparative Example 2 (FIG. 5, In comparison with FIG. 6), the glove of the present invention represented by Example 3 has relatively regular recesses of appropriate width, depth and number density formed on the coating layer, whereas Comparative Example 1 This glove does not have such a recess, and the gloves of Comparative Example 2 and Comparative Example 3 both have a large depth of the recess.
Furthermore, the enlarged photograph (FIG. 9) about the glove of Example 3 after an abrasion-resistance test, the enlarged photograph (FIG. 10) about the glove of the comparative example 2, The enlarged photograph about the glove of the comparative example 7 (FIG. 11) Compared with 11), the gloves of the present invention represented by Example 3 have small wear peeling of the coating layer and excellent wear resistance even after the wear resistance test. It can be seen that all of the gloves No. 7 have large wear peeling and inferior wear resistance.

Example 21
In Example 1, the pre-cured glove was released from the hand mold, and the soluble fine particles were dissolved and removed by rinsing with a drum washer for 60 minutes while replacing 5% of water per minute (warm water). The same operation as in Example 1 was performed.
The anion and cation ions on the surface of the obtained glove were extracted, and the amount of ions was measured using ion chromatography. As a method for extracting ions, 1 g of the coating layer was collected from the obtained glove, placed in 200 g of water, and extracted by heating at 85 ° C. for 1 hour. The results are shown in Table 5.

Comparative Example 10
In Example 1, operation was performed in the same manner as in Example 1 except that it was immediately rinsed with warm water of 40 ° C. for 60 minutes without being precured.
The amount of anions and cations on the surface of the glove thus obtained was measured. The results are shown in Table 5.

  As apparent from Table 5 above, the present invention can greatly reduce the amount of anions and cations on the surface of the coating layer of the glove. In particular, since sulfate ions, sodium ions, chlorine ions, and the like that cause rust can be significantly reduced, it is possible to prevent rusting of the metal part caused by contact with gloves during work.

As described above, according to the glove of the present invention, the anion that has anti-slip properties and wear resistance in a well-balanced manner, particularly excellent in anti-slip properties when in contact with oil, and causes rusting. And gloves with low cation content are provided.

Claims (11)

It consists of a fiber glove and a rubber or resin coating layer on its surface, and a recess having a width of 0.1 to 425 μm, a depth of 0.1 to 200 μm, and a number density of 1000 to 5000 / cm ² is formed on the surface of the coating layer. An anti-slip glove characterized by being provided.   The anti-slip glove according to claim 1, wherein the coating layer contains a film forming aid. The anti-slip glove according to claim 1 or 2, wherein at least one of the following residual ions in the coating layer has the following content.
Sulfate ion 100 ppm or less Nitrate ion 50 ppm or less Chlorine ion 1000 ppm or less Sodium ion 1000 ppm or less Ammonium ion 50 ppm or less.   A coating layer is formed on a surface of a fiber glove covered with a hand mold by using a rubber or resin compounding liquid containing a film-forming aid, and then the soluble fine particles are embedded in the coating layer, and the soluble fine particles are embedded in the coating. The method for producing anti-slip gloves according to claim 1, wherein the layer is pre-cured by heating, and further, the soluble fine particles are dissolved and removed from the coating layer, and then the coating layer is fully cured by heating.   A coating layer is formed on a surface of a fiber glove covered with a hand mold by using a rubber or resin compounding liquid containing a film-forming aid, and then the soluble fine particles are embedded in the coating layer, and the soluble fine particles are embedded in the coating. The method for producing a non-slip glove according to claim 1, wherein the layer is cured by heating, and further, the soluble fine particles are dissolved and removed from the coating layer, and then the coating layer is dried.   5. The method for producing an anti-slip glove according to claim 4, wherein the glove obtained by pre-curing the coating layer in which the soluble fine particles are embedded is released from the hand mold, and the soluble fine particles are dissolved and removed.   6. The method for producing a non-slip glove according to claim 5, wherein the glove obtained by curing the coating layer in which the soluble fine particles are embedded by heating is released from the hand mold, and the soluble fine particles are dissolved and removed.   The method for producing a non-slip glove according to any one of claims 4 to 7, wherein the soluble fine particles are dissolved and removed by a drum washer.   The film-forming auxiliary is a compound having a cloud point of 30 to 40 ° C, and is contained in an amount of 0.05 to 20 parts by weight based on 100 parts by weight of the solid content of rubber or resin. A method for producing a non-slip glove according to claim 1.   The film-forming aid is an alcohol compound and is contained in an amount of 5 to 25 parts by weight with respect to 100 parts by weight of a solid content of rubber or resin. The glove according to any one of claims 4 to 8, Production method.   The method for producing a glove according to any one of claims 4 to 10, wherein the soluble fine particles are sodium sulfate.