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Deinking agent for screen-net printing electrolytic nickel polar sheet and preparation thereof

A technology of screen printing and electrolytic nickel, applied in chemical paint/ink remover, coating, etc., can solve the problems of unusable electrode plate, leakage of electrode insulation layer, damage of surface insulation layer, etc.

Inactive Publication Date: 2008-09-03
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] After a certain period of electrolysis and stripping the insulation layer of the electrolytic nickel buckle plate prepared by screen printing, the surface insulation layer will be damaged, resulting in leakage of the insulation layer of the pole plate, an increase in the defective rate of the nickel buckle, and the plate cannot be used. The damaged ink layer can only be removed and reprinted
The ink layer on the damaged plate can be removed by mechanical sandblasting, high-temperature carbonization and chemical removal. However, the mechanical sandblasting method is labor-intensive and low in production efficiency. Only one plate is sandblasted for about 30 minutes, which cannot meet large-scale Industrialized production; high-temperature carbonization method has high energy loss and large plate thermal stress deformation; chemical removal method can achieve fast, efficient, energy-saving and convenient purposes, and is the preferred solution for ink removal on screen printing electrolytic nickel buckle plate
At present, the deinking agent is mainly developed and researched for the removal of paper ink, and the existing paper deinking agent cannot meet the deinking requirements of screen printing electrolytic nickel buckle plate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Put 28kg of paraffin into the batching kettle with electric stirring, reflux condenser and jacket heat exchange, close the system, pass steam to the jacket for heating, stir intermittently, completely melt the paraffin at 60°C, stop heating; Add 488.8kg of dichloromethane, stir for 30 minutes, pass tap water into the jacket to cool to normal temperature; continue to stir and add 112kg of phenol, 66.4kg of formic acid, 44kg of acetic acid into the kettle, stir to dissolve the phenol completely, then add 11.2kg of methyl Cellulose, 5.6kg of organic bentonite, 22.4kg of maleic rosin octylphenol polyoxyethylene ether carboxylate sodium, 16kg of hexamethylenetetramine, 5.6kg of benzotriazole are stirred evenly, and the viscosity is measured to pass the material and packed. Screen printing electrolytic nickel buckle plate deinking agent.

Embodiment 2

[0034] Put 22.4kg of paraffin into the batching kettle with electric stirring, reflux condenser and jacket heat exchange, close the system, pass steam to the jacket for heating, stir intermittently, completely melt the paraffin at 60°C, stop heating; continue stirring Slowly add 388.8kg of dichloromethane, stir for 30 minutes, pass tap water into the jacket to cool to room temperature; continue to stir and add 155.2kg of phenol, 100kg of formic acid, 66.4kg of acetic acid into the kettle, stir to dissolve the phenol completely, then add 16.8kg of Methyl cellulose, 3.2kg of organic bentonite, 24.8kg of maleic rosin octylphenol polyoxyethylene ether carboxylate, 22.4kg of hexamethylenetetramine were stirred evenly, and the viscosity was measured and passed the packaging to obtain screen printing electrolytic nickel. Button plate deinking agent.

Embodiment 3

[0036] Put 33.6kg of paraffin into the batching kettle with electric stirring, reflux condenser and jacket heat exchange, close the system, pass steam to the jacket for heating, stir intermittently, completely melt the paraffin at 60°C, stop heating; continue stirring Slowly add 533.6kg of dichloromethane, stir for 30 minutes, pass tap water into the jacket to cool to normal temperature; continue to stir and add 133.6kg of formic acid and 22.4kg of acetic acid into the kettle, stir to completely dissolve the phenol, then add 22.4kg of methyl cellulose in turn Primer, 16kg organic bentonite, 16kg maleic rosin octylphenol polyoxyethylene ether sodium carboxylate, 11.2kg hexamethylenetetramine, 11.2kg benzotriazole are stirred evenly, and the measured viscosity is qualified and the material is packaged to obtain the silk screen Printed electrolytic nickel buckle plate deinking agent.

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PUM

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Abstract

The invention provides a deinking agent of electrolytic nickel button plate for screen printing and preparation method thereof, comprising(by weight percentage): 61.1-66.7% of methylene chloride, 0-19.4% of phenol, 8.3-16.7% of formic acid, 2.8-8.3% of acetic acid, 1.4-2.8% of methyl cellulose, 0.7-2% of organobentonite, 2-3.1% of maleic rosin octylphenol polyoxyethylene ether sodium dicarboxylic acid, 1.4-2.8% of hexamethylenetetramine, 0-1.4% of benzotriazole, 2.8-4.2% of olefin. The preparation method comprises: getting the materials ready; putting the olefin into the blending kettle with jacket; steam heating the jacket and intermediately stirring and stopping heating when the olefin completely fuses at 60 degree; continually stirring and slowly adding methylene chloride and cooling the jacket to normal temperature by tap water; continually stirring and slowly adding phenol, formic acid and acetic acid and then adding the methyl cellulose, organobentonite, maleic rosin octylphenol polyoxyethylene ether sodium dicarboxylic acid, hexamethylenetetramine, benzotriazole in turn, when the phenol completely dissolves.

Description

technical field [0001] The present invention relates to C09D9 / 00 in the International Patent Classification, that is, ink remover, in particular to an ink remover for screen printing machine parts located in B41F15 / 00 classification. Background technique [0002] After a certain period of electrolysis and stripping the insulation layer of the electrolytic nickel buckle plate prepared by screen printing, the surface insulation layer will be damaged, resulting in leakage of the insulation layer of the pole plate, an increase in the defective rate of the nickel buckle, and the plate cannot be used. The damaged ink layer can only be removed and reprinted. The ink layer on the damaged plate can be removed by mechanical sandblasting, high-temperature carbonization and chemical removal. However, the mechanical sandblasting method is labor-intensive and low in production efficiency. Only one plate is sandblasted for about 30 minutes, which cannot meet large-scale Industrialized pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D9/00
Inventor 王希靖崔锦峰杨保平姚向民
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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