Carbon-black-based water-based paint as well as preparation method and application thereof

A water-based, carbon black-based technology, applied in paper coatings, hyaluronic acid coatings, chitin polysaccharide coatings, etc., can solve the problems of prominent environmental pollution, complex production equipment, high production costs, etc., to achieve improved opacity and high production efficiency , The effect of low production energy consumption

Active Publication Date: 2017-12-22
ZHEJIANG XINFENG SPECIAL PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the Yuguo bag paper factory basically adopts the lamination method to produce the outer bag paper. The inner surface is black because the carbon black is dyed in the pulp

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) Stir 384g of distilled water and 3g of sodium hexametaphosphate with a high-speed disperser at a speed of 1000r / min for 10min to dissolve the dispersant.

[0020] (2) Add 55g of kaolin, 20g of heavy calcium carbonate, 25g of carbon black in sequence, and add 0.5g of polyether defoamer, and continue stirring at a speed of 4000r / min for 15min to fully disperse the pigment.

[0021] (3) After the pigment is dispersed, add 20g of modified starch, 5g of carboxymethyl cellulose and 1g of modified chitosan, stir at a speed of 2000r / min for 5min, then add a certain amount of NaOH and stir at a low speed of 200r / min for 5min , adjust the pH of the solution to 10. After filtering, the finished mixture is obtained.

Embodiment 2

[0023] (1) Stir 384g of distilled water and 3g of sodium hexametaphosphate with a high-speed disperser at a speed of 1000r / min for 10min to dissolve the dispersant.

[0024] (2) Add 60g of kaolin, 20g of heavy calcium carbonate, 20g of carbon black in sequence, and add 0.5g of polyether defoamer, and continue stirring at a speed of 4000r / min for 15min to fully disperse the pigment.

[0025] (3) After the pigment is dispersed, add 20g of modified starch, 5g of carboxymethyl cellulose and 1g of modified chitosan, stir at a speed of 2000r / min for 5min, then add a certain amount of NaOH and stir at a low speed of 200r / min for 5min , adjust the pH of the solution to 10. After filtering, the finished mixture is obtained.

Embodiment 3

[0027] (1) Stir 384g of distilled water and 3g of sodium hexametaphosphate with a high-speed disperser at a speed of 1000r / min for 10min to dissolve the dispersant.

[0028] (2) Add 65g of kaolin, 20g of heavy calcium carbonate, 15g of carbon black, and 0.5g of polyether defoamer in sequence, and continue stirring at a speed of 4000r / min for 15min to fully disperse the pigment.

[0029] (3) After the pigment is dispersed, add 20g of modified starch, 5g of carboxymethyl cellulose and 1g of modified chitosan, stir at a speed of 2000r / min for 5min, then add a certain amount of NaOH and stir at a low speed of 200r / min for 5min , adjust the pH of the solution to 10. After filtering, the finished mixture is obtained.

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PUM

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Abstract

The invention relates to carbon-black-based water-based paint as well as a preparation method and application thereof. The carbon-black-based water-based paint uses carbon black, kaolin and calcium carbonate as pigments to be subjected to high-speed shearing dispersion for a certain time together with sodium hexametaphosphate dispersing agent solution and polyether type defoaming agents so as to prepare pigment water phase dispersion liquid; then, ingredients such as carboxymethyl cellulose, adhesive modification starch and antibacterial agent modification chitosan are added according to the specific programs; the carbon-black-based water-based paint is obtained through high-speed shearing dispersion. The carbon-black-based water-based paint is mainly applied to surface coating of fruit bearing bag outer bag paper; the process is simple; the production cost is low; the utilization rate of carbon black is improved; the cleanness and the environment protection of production workshops are facilitated.

Description

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Claims

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Application Information

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Owner ZHEJIANG XINFENG SPECIAL PAPER
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