Full-degradation water transfer printing paper surface coating film and coating process thereof

A water transfer printing paper, fully degradable technology, applied in the field of fully degradable water transfer printing paper surface coating film and its production process, can solve the problems of low surface smoothness, poor coating leveling, complex coating processing, etc., to achieve coating technology Simple, environmentally friendly, good printing effect

Active Publication Date: 2014-05-07
SHENZHEN WANJI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its shortcomings are: 1. It is not environmentally friendly and contains a large amount of inorganic chemicals; 2. The processing of coatings is complicated and costly, and cannot be widely promoted in the market; 3. Its surface smoothness is low (poor leveling of coatings), and printing poor effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] (1) Mix water and cornstarch in a reaction kettle at a weight ratio of 10:1;

[0049] Heating from room temperature to 60°C, stirring while heating, the stirring speed is 150r / min, stirring at 60°C for 1 hour; then raising the temperature to 90°C, and adjusting the stirring speed to 200r / min, stirring at 90°C for 40 minutes later;

[0050] Stop stirring and keep warm for 15 minutes;

[0051] After the heat preservation is completed, use NaOH according to the ratio of dry solid content NaOH: cornstarch is 1:180-200, evenly sprinkle it into the reaction kettle, set the speed of the mixer to 220 rpm when sprinkled with NaOH, start stirring, and measure When the pH value of the pasty surface coating is adjusted to 6.8, stop sprinkling NaOH and continue stirring for 5 minutes;

[0052] Then the coating is rapidly cooled to 40°C to obtain the surface coating, which is ready for use, and the solidification time of the surface coating is measured to be 15s;

[0053] (2) Pour...

Embodiment 2

[0056] (1) Mix water and cornstarch in a reaction kettle at a weight ratio of 10:3;

[0057] Heat the mixed water and cornstarch from normal temperature to 60°C, stir while heating, the stirring speed is 150r / min, and stir at 60°C for 1 hour; then raise the temperature to 95°C, and adjust the stirring speed to 220r / min min, after stirring at 95°C for 40 minutes;

[0058] Stop stirring and keep warm at 95°C for 10 minutes;

[0059]After the heat preservation is finished, use NaOH according to the ratio of dry solid content NaOH: cornstarch is 1:180-200, evenly sprinkle in the reaction kettle, set the speed of the mixer to 220 rev / min while sprinkle NaOH, start stirring, measure When the pH value of the pasty surface coating is adjusted to 7.0, stop sprinkling NaOH and continue stirring for 5 minutes;

[0060] Then the coating is rapidly cooled to 40°C to obtain the surface coating, which is ready for use, and the solidification time of the surface coating is measured to be 17...

Embodiment 3

[0064] (1) Mix water and cornstarch in a reaction kettle at a weight ratio of 10:5;

[0065] Heat the above-mentioned mixed water and cornstarch from normal temperature to 65°C, stir while heating, the stirring speed is 200r / min, stir at 65°C for 1 hour; then raise the temperature to 90°C, and adjust the stirring speed to 250r / min, after stirring at 90°C for 35 minutes;

[0066] Stop stirring and keep warm for 10 minutes;

[0067] After the heat preservation is completed, sprinkle NaOH evenly into the reaction kettle according to the weight ratio of dry solid content NaOH to corn starch of 1:180-200, and set the speed of the mixer to 220 rpm while sprinkling NaOH. Stir, measure the paste surface coating and adjust the PH value to 7.2, stop sprinkling NaOH, and continue stirring for 5 minutes;

[0068] Then the coating is rapidly cooled to 45°C to obtain the surface coating, which is ready for use, and the solidification time of the surface coating is measured to be 20s;

...

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Abstract

The invention relates to the technical field of transfer printing, in particular to a degradation water transfer printing paper surface coating film and a production process thereof. According to a formula, the degradation water transfer printing paper surface coating film comprises water serving as a component a and corn starch serving as a component b in the mass ratio of 10:(1-5); and the film is prepared by the production process of the degradation water transfer printing paper surface coating film. The degradation water transfer printing paper surface coating film prepared by the production process has the advantages of high smoothness, environment friendliness, no pollution, high demoulding speed, good water transfer printing coloring effect and the like; and the process is simple and low in cost.

Description

technical field [0001] The invention relates to the technical field of transfer printing, in particular to a surface coating film of fully degradable water transfer printing paper and a production process thereof. Background technique [0002] Water transfer printing is a special chemically treated film, which is printed on the required color lines and then sent flat on the surface of the water. Using the effect of water pressure, the color lines and patterns are evenly transferred to the surface of the product. Automatically dissolve in water, after cleaning and drying, then apply a layer of transparent protective coating, at this time the product has shown a completely different visual effect. With the improvement of people's requirements for product packaging and decoration, the use of water transfer printing is becoming more and more extensive. The principle of indirect printing and perfect printing effect solve the problem of surface decoration of many products, and it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H19/12
Inventor 张锋
Owner SHENZHEN WANJI TECH CO LTD
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