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Organosilicon-modified acrylate emulsion and preparation method thereof, heat transfer printing back coating liquid, heat transfer printing carbon ribbon back coating and carbon ribbon

An acrylate and silicone technology, used in coating, printing, ink ribbon, etc., can solve the problems of inability to meet the transfer process, poor adhesion performance of substrates, short service life, etc., to facilitate large-scale production, durable The effect of good thermal and slip properties and long service life

Active Publication Date: 2019-10-01
HANGZHOU TODAYTEC DIGITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The earliest back coating used in China is a silicone resin system, but its curing temperature is high, its adhesion to the substrate is poor, and its service life is short, which cannot meet the needs of the transfer process.

Method used

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  • Organosilicon-modified acrylate emulsion and preparation method thereof, heat transfer printing back coating liquid, heat transfer printing carbon ribbon back coating and carbon ribbon
  • Organosilicon-modified acrylate emulsion and preparation method thereof, heat transfer printing back coating liquid, heat transfer printing carbon ribbon back coating and carbon ribbon
  • Organosilicon-modified acrylate emulsion and preparation method thereof, heat transfer printing back coating liquid, heat transfer printing carbon ribbon back coating and carbon ribbon

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preparation example Construction

[0088] According to the second aspect of the present invention, the present invention provides the preparation method of the above-mentioned organosilicon-modified acrylate emulsion, comprising the following steps: dissolving the acrylate monomer and the organosilicon-modified acrylate active monomer in a solvent, and then adding The initiator, the acrylate monomer and the organosilicon-modified acrylate active monomer are polymerized to obtain the organosilicon-modified acrylate emulsion.

[0089] The organosilicon-modified acrylate emulsion provided by the invention has simple preparation process, convenient operation, facilitates large-scale production, and reduces preparation cost.

[0090] In a preferred embodiment of the present invention, the acrylate monomer and the organically modified acrylic oligomer are dissolved in a solvent, heated to 30-35°C, and then an initiator is added to further improve the polymerization efficiency and shorten the polymerization time .

...

Embodiment 1

[0112] This embodiment provides a silicone-modified acrylate emulsion, the raw materials of which include the following raw materials in parts by mass: 60 parts of acrylate monomers, 40 parts of silicone-modified acrylate active monomers, diphenyl peroxide 0.3 parts of formyl (BPO), wherein the molecular formula of silicone modified acrylate is R 1 -Si(CH 3 ) 2 -(O-Si(CH 3 ) 2 ) n -O-Si(CH 3 ) 2 -OCO-C(CH 3 )=CH 2 , the number average molecular weight is 10000, R 1 is n-butyl, R 2 It is a propyl group, and the acrylate monomer is a mixture of methyl methacrylate and butyl acrylate, and the mass ratio of the two is 65:8.

Embodiment 2

[0114] This embodiment provides a silicone-modified acrylate emulsion, the raw materials of which include the following raw materials in parts by mass: 80 parts of acrylate monomers, 20 parts of silicone-modified acrylate active monomers, diphenyl peroxide 0.3 parts of formyl, wherein the silicone-modified acrylate and the acrylate monomer are the same as those in Example 1, and will not be repeated here.

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Abstract

The invention provides an organosilicon-modified acrylate emulsion and a preparation method thereof, a heat transfer printing back coating liquid, a heat transfer printing carbon ribbon back coating and a carbon ribbon, and relates to the technical field of chemical coatings. The organosilicon-modified acrylate emulsion is prepared from, by mass, 60-80 parts of acrylate monomers and 20-40 parts oforganosilicon-modified acrylate activated monomers, wherein the number-average molecular weight of the organosilicon-modified acrylate activated monomers is 5000-20000, and the chemical general formula of the organosilicon-modified acrylate activated monomers is shown as R1 Si(CH3)2 (O Si(CH3)2)n O Si(CH3)2 R2OCO C(CH3)=CH2. The organosilicon-modified acrylate emulsion has the advantages of beinggood in adhesion property, low in curing temperature, good in heat resistance and smoothness, and capable of effectively meeting the needs of a transfer printing process.

Description

technical field [0001] The invention relates to the technical field of chemical coatings, in particular to an organosilicon-modified acrylate emulsion and a preparation method thereof, a thermal transfer printing back coating liquid, a thermal transfer carbon ribbon back coating and a carbon ribbon. Background technique [0002] Ribbon back coating is where the ribbon is in direct contact with the print head of the printer. Its function is to protect the print head during the unwinding of the ribbon (from the winding state), providing excellent heat transfer so that the ink can be absorbed Delivered to the media, reducing the build-up of static that can be harmful to the printer and printer operators, extending printhead life. Since the carbon ribbon needs to bear the instantaneous high temperature generated by the thermal print head during the thermal transfer process, it is necessary to coat one side of the substrate with a back coating, which not only needs to have high h...

Claims

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Application Information

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IPC IPC(8): C08F220/14C08F220/18C08F230/08C09D133/12C09D133/08B41J31/08
CPCC08F220/14C08F220/18C09D143/04B41J31/08C08F220/1804C08F230/08
Inventor 梁永峰
Owner HANGZHOU TODAYTEC DIGITAL
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