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Instant dry type heat sublimation transfer digital paper

A thermal sublimation and digital paper technology, which is applied in printing, copying/marking methods, temperature recording methods, etc., can solve the problem that the drying speed cannot meet the printing production speed requirements, achieve ideal transfer effect, increase ink absorption, Improve the effect of fast delivery

Active Publication Date: 2017-02-01
杭州华大海天科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the shortcoming that the drying speed in the prior art cannot meet the requirement of printing production speed, and provides an instant dry sublimation transfer printing digital paper that can realize rapid drying, rapid ink absorption and high transfer rate

Method used

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  • Instant dry type heat sublimation transfer digital paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Instant dry sublimation transfer digital paper, such as figure 1 As shown, base paper 1, water-absorbing and permeable layer 2, porous layer 3, and surface channel layer 4 are sequentially included from bottom to top.

[0037] The surface channel layer 4 is calculated by mass percentage, and the components and contents are as follows:

[0038] Resin composite 92%;

[0039] Porous silica 8%;

[0040] Wherein, the resin compound is composed of polyvinyl acetate with a mass percentage of 70% and a vinyl alcohol-vinyl acetate copolymer with a mass percentage of 30%. The mass of the channel layer 4 on the upper surface of the substrate paper 1 per square meter is 2.0 g.

[0041] The porous layer 3 is made of 62% by mass of cellulose, 30% by mass of cationic modified polyacrylamide, and is prepared by reacting 8% by mass of diisocyanate, and the cellulose is made of 20% by mass of hydroxyethyl Cellulose and 80% by mass of hydroxypropyl cellulose, cationic modified polyacr...

Embodiment 2

[0047] Instant dry sublimation transfer digital paper, such as figure 1 As shown, base paper 1, water-absorbing and permeable layer 2, porous layer 3, and surface channel layer 4 are sequentially included from bottom to top.

[0048] The surface channel layer 4 is calculated by mass percentage, and the components and contents are as follows:

[0049] Resin composite 75%;

[0050] Porous silica 25%;

[0051] Wherein, the resin compound is composed of ethylene-vinyl alcohol-vinyl acetate copolymer with a mass percentage of 50% and sodium carboxymethyl cellulose with a mass percentage of 50%. The mass of the channel layer 4 on the upper surface of the substrate paper 1 per square meter is 3.0 g.

[0052] Porous layer 3 is made of 75% by mass percentage of cellulose, 20% by mass percentage of cationic modified starch by reacting 5% of diisocyanate by mass percentage, and the cellulose is made of 30% by mass of carboxymethyl cellulose and 70% by mass of hydroxyethyl cellulose, ...

Embodiment 3

[0058] Instant dry sublimation transfer digital paper, such as figure 1 As shown, base paper 1, water-absorbing and permeable layer 2, porous layer 3, and surface channel layer 4 are sequentially included from bottom to top.

[0059] The surface channel layer 4 is calculated by mass percentage, and the components and contents are as follows:

[0060] Resin composite 60%;

[0061] Porous silica 40%;

[0062] Wherein, the resin composite is composed of vinyl alcohol-vinyl acetate copolymer with a mass percentage of 45% and sodium carboxymethyl cellulose with a mass percentage of 55%. The mass of the channel layer 4 on the upper surface of the substrate paper 1 per square meter is 2.4 g.

[0063] Porous layer 3 is made by the reaction of 7% diisocyanate by mass percent of 68% sodium carboxymethyl cellulose, 25% by mass of cationic modified starch, and the diisocyanate is 50% by mass of H 12 MDI and 50% by weight of p-phenylene diisocyanate. The mass of the porous layer 3 on ...

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Abstract

The invention relates to the technical field of heat sublimation transfer, and discloses instant dry type heat sublimation transfer digital paper. The instant dry type heat sublimation transfer digital paper sequentially comprises base material paper, a water absorbing and permeating layer, a porous layer and a surface channel layer from bottom to top. The porous layer is interpenetrating polymer network resin formed by cross linking of cellulose or sodium carboxymethylcellulose or starch and cation modified polyacrylamide or formed through cross linking of polyacrylamide or cellulose or sodium carboxymethylcellulose and cation modified starch. On one hand, the interpenetrating polymer network resin can expand to pocket dyestuff, and rapid ink sucking is conducted; and on the other hand, resin components are adjusted, the network density is controlled, so that the water permeability is improved, and water molecules rapidly enter the water absorbing and permeating layer. Holes are formed in the hydrophilia end of the water absorbing and permeating layer, and water in ink is adsorbed into the holes and rapidly transmitted to the cellulose paper base material. The instant dry type heat sublimation transfer digital paper has the beneficial effects that dryness can be achieved immediately during printing, ink absorbing is rapid, and the transfer effect is good; and requirements of existing rapid printing and efficient manufacturing are met.

Description

technical field [0001] The invention relates to the technical field of thermal sublimation transfer printing, in particular to an instant dry thermal sublimation transfer digital paper. Background technique [0002] Thermal transfer printing technology refers to printing text, graphics and other content on plain paper or high-precision printing paper with thermal printing ink, and then heating it to 180-230°C within a few minutes by the corresponding thermal transfer equipment A special process in which the colors of images are transferred to different materials realistically. Transfer printing digital paper is the carrier of patterns and inks. It is transferred and printed on different material media by heating to 180-230°C, which basically ensures that all dye molecules are transferred to the media material. [0003] Patent application No. 99810480.9 discloses a transfer paper for inkjet printing, which has a release layer or a barrier layer on the side to be printed, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/44B41M5/42
CPCB41M5/426B41M5/44
Inventor 林贤福吕德水陈志春
Owner 杭州华大海天科技股份有限公司
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