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Chemical resistant glove

a glove and glove technology, applied in the field of chemical resistance gloves coated with rubber, can solve the problems of rubber gloves being prone to slippage, gloves are difficult to use, and the glove is not easy to clean, so as to achieve excellent chemical resistance, good protection and reliability, and good tactile feeling and abrasion resistance.

Inactive Publication Date: 2010-06-10
SHOWA GLOVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008]In the light of the aforementioned situations, it is hence an object of the present invention to solve the above-mentioned problems in the prior art and to provide gloves for works handling chemicals such as acidic chemicals and alkaline chemicals which are not only improved in safety and reliability against chemicals, without impairing tactile feeling and workability, but also are excellent in abrasion resistance.
[0017]According to the present invention, a glove that is excellent in chemical resistance, good in protection and reliability, and good in tactile feeling and abrasion resistance is provided by forming a chloroprene-based rubber layer as the first layer and a mixed rubber layer containing a nitril butadiene-based rubber and a chloroprene-based rubber as the second layer sequentially on a fabric glove.
[0018]Moreover, a glove that has more improved chemical resistance is provided by further forming a chloroprene-based rubber layer as an intermediate layer between the first layer and the second layer.
[0019]Furthermore, a glove that is excellent in slip resistance addition to the above mentioned effects is provided by causing the mixed rubber layer to contain nitrile-butadiene-based rubber particles.

Problems solved by technology

However, even if a chloroprene-based polymer such as mentioned above is applied, when a coat layer is formed of only a single layer of a chloroprene rubber, overlooked defects of the coating may result in an accident caused by a hazardous liquid during use.
On the other hand, if a multilayer structure is formed in order to solve these problems, a resulting glove becomes hard and stiff in tactile feeling, resulting in a problem that the glove is difficult to use.
In addition, rubber-coated gloves are problematic in that when a person grips an object with a gloved hand, the object is prone to slip.
This problem is more serious particularly when the surface of the glove is wet with a chemical liquid.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0059]A cotton-polyester (50:50) mixed-spun seamless glove knitted with a 18-gauge knitter was set on a ceramic hand mold, followed by dipping into a coagulant bath. A coagulant liquid composed of methanol and calcium nitrate (100:2.0) was used. Subsequently, the glove was dwelled for about 3 seconds in a bath containing a rubber compound liquid of the first layer given in Table 2 and then was picked up from the bath, immediately followed by dipping into a 15% aqueous calcium nitrate solution. Furthermore, the hand mold with the rubber-coated was dried for 3 minutes in a dryer of 75° C., so that a chloroprene-based rubber layer as the first layer was formed.

TABLE 2Parts by weight(solidRubber compound liquid of the first layercontent basis)Chloroprene rubber latexSHOPRENE 671A100SurfactantDARVAN WAQ1SurfactantDARVAN SMO1pH adjusterpotassium hydroxide0.18Fillerclay10Vulcanizing agentsulfur1Metal oxidezinc oxide10Vulcanization acceleratorNOCCELER BZ2Antiaging agentVulkanox BKF2Inorgani...

example 2

[0061]A chemical resistant glove in which a chloroprene-based rubber layer as the first layer and a mixed rubber layer as the second layer had been formed on a fabric glove was obtained in the same way as in Example 1 except for changing the mixed rubber compound liquid of the second layer to the mixed rubber compound liquid shown in Table 4.

TABLE 4Parts by weight(solidMixed rubber compound liquid of the second layercontent basis)NBR latexPERBUNAN N LATEX20X 1150Chloroprene rubber latexSHOPRENE 671A80SurfactantDARVAN WAQ1SurfactantDARVAN SMO1pH adjusterpotassium hydroxide1Vulcanizing agentsulfur1Metal oxidezinc oxide5Vulcanization acceleratorNOCCELER BZ1Antiaging agentVulkanox BKF2Inorganic fillertitanium oxide0.4PigmentCHROMOFINE BLUE HS-40.5Defoaming agentNopco DF-122-NS0.05ThickenerA-70751water48.1Concentration of the solid content35% by weightV6 viscosity2000 mPa · sec

example 3

[0062]A chemical resistant glove in which a chloroprene-based rubber layer as the first layer and a mixed rubber layer as the second layer had been formed on a fabric glove was obtained in the same way as in Example 1 except for changing the mixed rubber compound liquid of the second layer to the mixed rubber compound liquid shown in Table 5.

TABLE 5Parts by weight(solidMixed rubber compound liquid of the second layercontent basis)NBR latexPERBUNAN N LATEX25X 1150Chloroprene rubber latexSHOPRENE 671A75SurfactantDARVAN WAQ1SurfactantDARVAN SMO1pH adjusterpotassium hydroxide1Vulcanizing agentsulfur1Metal oxidezinc oxide5Vulcanization acceleratorNOCCELER BZ1Antiaging agentVulkanox BKF2Inorganic fillertitanium oxide0.4PigmentCHROMOFINE BLUE HS-40.5Defoaming agentNopco DF-122-NS0.05ThickenerA-70751water45.3Concentration of the solid content35% by weightV6 viscosity2000 mPa · sec

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Abstract

A chemical resistant glove is provided which comprises a chloroprene-based rubber as a first layer and a mixed rubber layer containing a nitrile-butadiene-based rubber and a chloroprene-based rubber as a second layer sequentially formed on a fabric glove, wherein a mixing ratio of the nitrile-butadiene-based rubber and the chloroprene-based rubber in the mixed rubber layer as the second layer is 60:40 to 10:90 in a solid weight ratio. The chemical resistant glove of the present invention is excellent in chemical resistance, tactile feeling and the abrasion resistance.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a chemical resistant glove coated with a rubber, and particularly to a chemical resistant glove that is obtained by coating a fabric glove with a chloroprene-based rubber, which has not only greatly improved chemical resistance, safety and reliability, but also tactile feeling and abrasion resistance.[0003]2. Description of the Prior Art[0004]Liquid proof gloves in which the surface of a fabric glove has been coated with a rubber or a resin are widely used as working gloves. Examples of the rubber or the resin to be applied include a natural rubber (NR), a styrene-butadiene rubber (SBR), a nitrile-butadiene rubber (NBR), a chloroprene rubber (CR), a polyurethane (PU), and a vinyl chloride resin (PVC). Among these, a chloroprene rubber is known to be excellent in weather resistance, thermal resistance, oil resistance, and chemical resistance, especially in acid resistance and alkali resis...

Claims

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Application Information

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IPC IPC(8): A41D19/00
CPCA41D19/0065A62B17/006D06N3/18D06N3/10C08L11/02B29C41/14B29C41/22B29L2031/4864C08K3/22C08L9/02C08L9/04C08L11/00C08L2666/08D06N3/183
Inventor IKEDA, YUJISHUDO, KATSUKIAOYAGI, YUKARI
Owner SHOWA GLOVE
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