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

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Problems solved by technology

The earliest back coating used in China is a silicone resin system, but its curing temperature is high, its adhes

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

Examples

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Example Embodiment

[0088] According to the second aspect of the present invention, the present invention provides a method for preparing the aforementioned silicone-modified acrylate emulsion, which includes the following steps: dissolving acrylate monomer and silicone-modified acrylate active monomer in a solvent, and then adding The initiator, the acrylate monomer and the organic silicon modified acrylate active monomer undergo polymerization reaction to obtain the organic silicon modified acrylate emulsion.

[0089] The organosilicon modified acrylate emulsion provided by the invention has simple preparation process, convenient operation, convenient realization of large-scale production, and lower 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 an initiator is added to further improve the polymerization efficiency and shorten the polymerization time. ...

Example Embodiment

[0111] Example 1

[0112] This embodiment provides a silicone modified acrylate emulsion. The raw materials include the following raw materials in parts by mass: 60 parts of acrylate monomers, 40 parts of silicone modified acrylate active monomers, and diphenyl peroxide Formyl (BPO) 0.3 parts, in which 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.

Example Embodiment

[0113] Example 2

[0114] This embodiment provides a silicone modified acrylate emulsion. The raw materials include the following raw materials in parts by mass: 80 parts of acrylate monomers, 20 parts of silicone modified acrylate active monomers, and diphenyl peroxide 0.3 parts of formyl, wherein the silicone-modified acrylate and acrylate monomers 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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