Heat transfer printing antistatic paint special for plastics and preparation method

An antistatic plastic and thermal transfer printing technology, applied in conductive coatings, polyester coatings, coatings, etc., can solve the problems of roughening, spots, patterns, paper scraps, and dust absorption on full-page parts, and achieve improved anti-static Static performance, antistatic effect, long-lasting effect, quality improvement effect

Inactive Publication Date: 2019-03-29
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] It can be seen that in the actual application of thermal transfer printing in the prior art, the existence of static electricity will lead to frequent failures in the thermal transfer process, such as: spots, patterns, roughness appearing on the full plate, printing color drops, reverse sticky etc.
Although the carbon ribbon is used to eliminate static electricity during the thermal transfer process to reduce the absorption of paper scraps and dust and prolong the life of the thermal print head, but its cost is relatively high

Method used

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  • Heat transfer printing antistatic paint special for plastics and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] a, adding graphene oxide into deionized water, uniformly dispersed to obtain a graphene oxide dispersion; wherein, 20 parts by weight of graphene oxide and 80 parts by weight of deionized water;

[0032] b. Add hydrogen bromide solution and oxalic acid with a mass concentration of 55% to the graphene oxide dispersion prepared in step a, mix and stir for 45 minutes, carry out carboxylation modification to graphene oxide, filter and dry after completion , to obtain carboxylated graphene oxide; wherein, 68 parts by weight of graphene oxide dispersion, 12 parts by weight of hydrogen bromide solution, 20 parts by weight of oxalic acid;

[0033] c. Dissolve the carboxyl-terminated PET resin in an organic solvent, then add the carboxylated graphene oxide prepared in step b, ultrasonically disperse for 15 minutes, further add a reactive crosslinking agent, stir and react for 20 minutes, then add a reducing agent and stir 60min, graphene oxide is reduced, and antistatic plastic ...

Embodiment 2

[0035] a, adding graphene oxide into deionized water, uniformly dispersed to obtain a graphene oxide dispersion; wherein, 10 parts by weight of graphene oxide and 90 parts by weight of deionized water;

[0036] b. Add hydrogen bromide solution and oxalic acid with a mass concentration of 50% to the graphene oxide dispersion prepared in step a, mix and stir for 30 minutes, carry out carboxylation modification to graphene oxide, filter and dry after completion , to obtain carboxylated graphene oxide; wherein, 72 parts by weight of graphene oxide dispersion, 10 parts by weight of hydrogen bromide solution, 18 parts by weight of oxalic acid;

[0037] c. Dissolve the carboxyl-terminated PET resin in an organic solvent, then add the carboxylated graphene oxide prepared in step b, ultrasonically disperse for 15 minutes, further add a reactive crosslinking agent, stir and react for 20 minutes, then add a reducing agent and stir 45min, the graphene oxide was reduced to prepare the spec...

Embodiment 3

[0039]a, adding graphene oxide into deionized water, uniformly dispersed to obtain a graphene oxide dispersion; wherein, 30 parts by weight of graphene oxide and 70 parts by weight of deionized water;

[0040] b. Add hydrogen bromide solution and oxalic acid with a mass concentration of 60% to the graphene oxide dispersion prepared in step a, mix and stir for 30 minutes, carry out carboxylation modification to graphene oxide, filter and dry after completion , to obtain carboxylated graphene oxide; wherein, 63 parts by weight of graphene oxide dispersion, 15 parts by weight of hydrogen bromide solution, 22 parts by weight of oxalic acid;

[0041] c. Dissolve the carboxyl-terminated PET resin in an organic solvent, then add the carboxylated graphene oxide prepared in step b, ultrasonically disperse for 20 minutes, further add a reactive crosslinking agent, stir and react for 15 minutes, then add a reducing agent and stir 45min, the graphene oxide was reduced to prepare the speci...

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Abstract

The invention discloses a heat transfer printing antistatic paint special for plastics and a preparation method. The method includes: a. preparing a graphene oxide dispersion liquid; b. preparing carboxylated graphene oxide; and c. adding carboxyl-terminated PET resin and carboxylated graphene oxide into an organic solvent, carrying out cross-linking reaction, and then reducing graphene oxide to obtain the antistatic paint special for plastics. During use, the paint is applied to uniform scrape coating and drying curing, the formed graphene-containing multi-network structure has an effective conductive path, can significantly improve the antistatic performance of a PET base layer, also no antistatic finish paint layer or brushing process is needed for modification, the antistatic effect ismore durable and long-acting, and the heat transfer printing quality can be effectively improved.

Description

technical field [0001] The invention relates to the field of printing materials, in particular to the preparation of a thermal transfer film, in particular to a special coating for thermal transfer antistatic plastics and a preparation method thereof. Background technique [0002] Thermal transfer printing technology is a special printing method that uses gravure printing, first prints graphics and text on the carrier film, and then transfers the graphics and text to the substrate through a thermal transfer machine, so that the product has a decorative effect. The specific implementation of thermal transfer technology includes two parts: the production of thermal transfer film and thermal transfer processing. Thermal transfer film consists of five parts, including: base film, release layer, protective layer, ink layer, adhesive layer. The coatings are closely related and affect each other. [0003] The base film is also called the carrier film. During the thermal transfer ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/02C09D5/24
CPCC09D167/02C09D5/24C08K9/04C08K3/042
Inventor 陈庆昝航
Owner CHENDU NEW KELI CHEM SCI CO LTD
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