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Film-forming process of nitrile latex on cotton liner by non-coagulant method

A non-coagulant and nitrile latex technology, which is applied to flat products, household utensils, and other household utensils, etc., can solve the problems such as the adverse effects of the production process of oil-resistant gloves, poor strength of nitrile film, and poor surface brightness. Effects of preventing glue seepage, reducing glue seepage, and reducing energy consumption

Inactive Publication Date: 2015-09-16
TIANJIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Ca(NO 3 ) 2 , CaCl 2 The methanol coagulant method has become an important method for the production of oil-resistant gloves from nitrile latex due to the advantages of fast film formation and difficult penetration. Although this method is widely used, it also has many defects in the use process: such as the formed nitrile The strength of the film is poor, not wear-resistant, and the surface brightness is poor. The processing process requires washing, dehydration, and drying. Therefore, the existing methanol coagulant method has a great adverse effect on the quality of oil-resistant gloves and the entire production process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of non-coagulant method nitrile latex film-forming process on cotton liner, comprises the following steps:

[0034] (1) The viscosity of the nitrile latex solution is adjusted to 200cp by a thickener, which is sodium polyacrylate.

[0035] (2) Control the temperature of the mold itself on the production line to be 65-80°C.

[0036] (3) the mold that has been fitted with the cotton liner is rotated into the nitrile latex solution according to the speed of 20 revolutions per minute, and the mold enters at an angle of 20° with the nitrile latex solution, and the nitrile latex makes the surface of the cotton liner form a uniform liquid film. The part of the cotton liner that is not impregnated is poured with nitrile latex for about 3 seconds by using the characteristics of mold rotation.

[0037] (4) After the mold treated in step (3) leaves the dipping tank, let the mold go down for three minutes to drain the excess nitrile latex solution on the surface of the cott...

Embodiment 2

[0041] A kind of non-coagulant method nitrile latex film-forming process on cotton liner, comprises the following steps:

[0042] (1) The viscosity of the nitrile latex solution is adjusted to 250 cp by a thickener, which is sodium polyacrylate.

[0043] (2) Control the temperature of the mold itself on the production line to 70°C.

[0044] (3) the mold that has been fitted with the cotton bladder is rotated into the nitrile latex solution according to the speed of 25 revolutions per minute, and the mold enters at an angle of 30° with the nitrile latex solution, and the nitrile latex makes the surface of the cotton bladder form a uniform liquid film. The part of the cotton liner that is not impregnated is poured with nitrile latex for about 3 seconds by using the characteristics of mold rotation.

[0045] Steps (4)-(6) are the same as in Example 1.

Embodiment 3

[0047] A kind of non-coagulant method nitrile latex film-forming process on cotton liner, comprises the following steps:

[0048] (1) The viscosity of the nitrile latex solution is adjusted to 300cp by a thickener, which is sodium polyacrylate.

[0049] (2) Control the temperature of the mold itself on the production line to be 80°C.

[0050] (3) the mold that has been fitted with the cotton bladder is rotated into the nitrile latex solution according to the speed of 30 revolutions per minute, and the mold enters at an angle of 40° with the nitrile latex solution, and the nitrile latex makes the surface of the cotton bladder form a uniform liquid film. The part of the cotton liner that is not impregnated is poured with nitrile latex for about 3 seconds by using the characteristics of mold rotation.

[0051] Steps (4)-(6) are the same as in Example 1.

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PUM

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Abstract

The invention relates to a non-coagulator method butyronitrile latex film forming technology on cotton cores, which includes the steps of adjusting the viscosity of butyronitrile latex solution; controlling the temperature of moulds themselves on the production line; putting moulds fitted with cotton cores into the butyronitrile latex solution; filming integrally; submerging the integrally filmed cotton cores into the non-thickening butyronitrile latex solution; and solidifying and molding all the cotton cores. The non-coagulator method film forming technology on cotton cores of butyronitrile latex has the advantages of reasonable design, simple process and high production efficiency; butyronitrile gel films processed and molded with the technology have the advantages of being high in strength, good in abrasion resistance and oil resistivity, and high in surface finish quality. The non-coagulator method is important for the cleaner production at present and in future.

Description

technical field [0001] The invention relates to a film-forming process of nitrile latex in the field of oil-resistant gloves, in particular to a film-forming process of nitrile latex on cotton liner by non-coagulant method. Background technique [0002] Ca(NO 3 ) 2 , CaCl 2 The methanol coagulant method has become an important method for the production of oil-resistant gloves from nitrile latex due to the advantages of fast film formation and difficult penetration. Although this method is widely used, it also has many defects in the use process: such as the formed nitrile The strength of the film is poor, not wear-resistant, and the surface brightness is poor. The processing process requires washing, dehydration, and drying. Therefore, the existing methanol coagulant method has a great adverse effect on the quality of oil-resistant gloves and the entire production process. . Contents of the invention [0003] The purpose of the present invention is to overcome the defi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C41/04B29L7/00
Inventor 王昶顾萍
Owner TIANJIN UNIV OF SCI & TECH
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