A kind of micro-coating sublimation thermal transfer paper and preparation method thereof

A technology of sublimation heat and transfer printing paper, which is applied in the field of papermaking, can solve the problems of low pigment content, affect the transfer printing accuracy, and fall off, and achieve the effects of accelerating absorption and drying, ensuring ink absorption performance, and improving binding force

CN111636242BActive Publication Date: 2022-06-21XIANHE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2022-06-21

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Abstract

The invention relates to the technical field of papermaking, and discloses a micro-coated sublimation thermal transfer paper and a preparation method thereof, comprising base paper and an ink-absorbing coating coated on the base paper, and the coating used for preparing the ink-absorbing coating is recorded in parts by weight, The raw materials include: 0.6~2 parts of polyepichlorohydrin-dimethylamine modified nano-silica, 6~16 parts of acrylamide modified polyvinyl alcohol, 100~200 parts of water, and the coating amount of the paint is 3 ~5g / m 2 . The invention modifies the binder and the pigment in the coating, utilizes the reaction between the binder and the pigment, connects the pigment and the binder through chemical bonds, and prevents the pigment from coming out of the binder when the coating is thin. Shedding affects the absorption of ink; and the modified binder and pigment can not only accelerate the absorption of ink, but also fix the ink in the coating to prevent ink from penetrating into the paper surface.
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Description

technical field

[0001] The invention relates to the technical field of papermaking, in particular to a micro-coated sublimation thermal transfer paper and a preparation method thereof. Background technique

[0002] The sublimation heat transfer technology is to use inkjet printing, offset printing, silk screen printing and other printing methods to print the pattern on the heat transfer paper, and then attach the patterned side of the heat transfer paper to the substrate, and then use the heat-pressed The method of making the ink on the paper into a gaseous state and combining with the substrate, thereby transferring the pattern to the printing material such as fabric, has the advantages of simplicity, high efficiency, and high personalization, and is widely used in the advertising industry, clothing industry and other fields.

[0003] The thermal transfer paper used in sublimation thermal transfer is mainly composed of base paper and a coating on the base paper. The coating...

Examples

Embodiment 1

[0038] A micro-coated sublimation heat transfer paper, including base paper and an ink-absorbing coating coated on the base paper, the basis weight is 98.54g / m 2 , the pulp for preparing the base paper includes 30% bleached uncolored softwood pulp and 70% bleached hardwood pulp, the pulp degree is 35oSR, the wet weight is 3.5g, and the amount of light calcium carbonate per ton of paper is 180kg. , 0.5-1.0kg of degassing agent, 17kg of PPE wet strength agent with a solid content of 13%, 8kg of cationic starch and 25kg of alkyl ketene dimer.

[0039] The paint used for preparing the ink-absorbing coating is recorded in parts by weight, and the raw materials include: 1.5 parts of polyepichlorohydrin-dimethylamine-modified nano-silicon dioxide, 10 parts of acrylamide-modified polyvinyl alcohol, 150 parts of water, The coating weight is 4g / m 2 , the preparation method of the coating is:

[0040] A) Preparation of polyepichlorohydrin-dimethylamine-modified nano-silica: Disperse na...

Embodiment 2

[0052] A micro-coated sublimation heat transfer paper, including base paper and an ink-absorbing coating coated on the base paper, with a base paper weight of 80.77g / m 2 , the pulp for preparing the base paper includes 20% bleached uncolored softwood pulp and 80% bleached hardwood pulp, the pulp is 30oSR, the wet weight is 2.5g, and the amount of light calcium carbonate per ton of paper is 150kg. , 0.5kg of degassing agent, 15kg of PPE wet strength agent with a solid content of 15%, 5kg of cationic starch and 20kg of alkyl ketene dimer.

[0053] The paint used for preparing the ink-absorbing coating is recorded in parts by weight, and the raw materials include: 0.6 parts of polyepichlorohydrin-dimethylamine modified nano-silicon dioxide, 6 parts of acrylamide-modified polyvinyl alcohol, 100 parts of water, The coating weight is 3g / m 2 , the preparation method of the coating is:

[0054] A) Preparation of polyepichlorohydrin-dimethylamine-modified nano-silica: disperse nano-s...

Embodiment 3

[0066] A micro-coated sublimation heat transfer paper, including base paper and an ink-absorbing coating coated on the base paper, the base paper is 100.31g / m2 in basis weight 2 , the pulp for preparing the base paper includes 40% bleached uncolored softwood pulp and 60% bleached hardwood pulp, with a pulp degree of 40oSR and a wet weight of 4.5g. The amount of light calcium carbonate per ton of paper added to the pulp is 200kg. , 1.0kg of degassing agent, 20kg of PPE wet strength agent with a solid content of 12%, 10kg of cationic starch and 30kg of alkyl ketene dimer.

[0067] The paint used in preparing the ink-absorbing coating is recorded in parts by weight, and the raw materials include: 2 parts of polyepichlorohydrin-dimethylamine-modified nano-silica, 16 parts of acrylamide-modified polyvinyl alcohol, 200 parts of water, The coating weight is 5g / m 2 , the preparation method of the coating is:

[0068]A) Preparation of polyepichlorohydrin-dimethylamine-modified nano-s...