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Water-based ink for film printing and preparation method of ink

A water-based ink and film printing technology, applied in the field of printing materials, can solve the problems of water-based ink adhesion fastness, low tinting strength, etc.

Inactive Publication Date: 2019-03-19
长沙浩然医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a water-based ink for film printing and its preparation method to solve the problems disclosed in the Chinese patent application document "A high-adhesion water-based ink for PVC printing (patent number: ZL201710629708.7)" How to optimize the composition, dosage, process, etc., to improve the adhesion fastness and low tinting strength of water-based ink

Method used

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preparation example Construction

[0031]The preparation method of the described water-based ink for film printing, comprises the following steps:

[0032] S1: Add deionized water to the dispersion tank, add calcium carbonate and kaolin under stirring conditions, add the specified amount of pigment after stirring evenly, and prepare the pigment into an aqueous dispersion with a concentration of 40%-60%;

[0033] S2: Add water-based polyurethane-acrylic resin emulsion, defoamer, sodium alkyl sulfate, polyacrylamide, and monoalkoxy titanate to the water dispersion, stir evenly, and then use a high-speed disperser at 5000-6000r / min After dispersing for 60-80 minutes, add it to a sand mill and grind until the particle size is <10μm, and then leave the water-based ink for 30-35 days to obtain the finished product.

Embodiment 1

[0035] The water-based ink for film printing, in parts by weight, includes the following components: 50 parts of water-based polyurethane-acrylic resin emulsion, 55 parts of deionized water, 5 parts of iron oxide red, 5 parts of organic yellow, 2.5 parts of ammonia water 3 parts, 3 parts of calcium carbonate, 3 parts of kaolin, 1.6 parts of polyoxyethylene polyoxypropanol amine ether, 2.5 parts of sodium alkyl sulfate, 1.8 parts of polyacrylamide, 0.3 part of monoalkoxy titanate;

[0036] The water-based polyurethane-acrylic resin emulsion uses butyl acrylate, methyl methacrylate, and methacrylic acid as monomers, and adopts emulsion polymerization to prepare a water-based acrylic resin emulsion, and then it is modified by water-based polyurethane to make water-based polyurethane-acrylic acid. Acrylic resin emulsion; the water-based polyurethane is made of toluene diisocyanate under the effect of dibutyltin dilaurate and polypropylene glycol, methacrylic acid, 1,6-hexanediol, h...

Embodiment 2

[0041] The described water-based ink for film printing comprises the following components in parts by weight: 55 parts of water-based polyurethane-acrylic resin emulsion, 60 parts of deionized water, 4 parts of organic yellow, 4 parts of titanium dioxide, 4 parts of carbon black 2.3 parts of ammonia water, 1 part of calcium carbonate, 4 parts of kaolin, 1.2 parts of polyoxypropylene glyceryl ether, 3.8 parts of sodium alkyl sulfate, 3.5 parts of polyacrylamide, and 0.35 parts of monoalkoxy titanate;

[0042] The water-based polyurethane-acrylic resin emulsion uses butyl acrylate, methyl methacrylate, and methacrylic acid as monomers, and adopts emulsion polymerization to prepare a water-based acrylic resin emulsion, and then it is modified by water-based polyurethane to make water-based polyurethane-acrylic acid. Acrylic resin emulsion; the water-based polyurethane is made of toluene diisocyanate under the effect of dibutyltin dilaurate and polypropylene glycol, methacrylic aci...

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PUM

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Abstract

The invention discloses a water-based ink for film printing, and belongs to the technical field of printing. The water-based ink for film printing comprises the following components: a water-based polyurethane-acrylic resin emulsion, deionized water, a pigment, ammonia water, calcium carbonate, kaolin clay, a defoaming agent, sodium alkyl sulfate, polyacrylamide and monoalkoxytitanate, wherein thewater-based polyurethane-acrylic resin emulsion takes butyl acrylate, methyl methacrylate and methacrylic acid as monomers, adopts an emulsion polymerization method to prepare the water-based acrylicresin emulsion, and then modifies the water-based polyurethane to prepare the water-based polyurethane-acrylic resin emulsion. A reinforcing system consisting of sodium alkyl sulfate, polyacrylamideand monoalkoxytitanate is adopted to improve the tinting strength and adhesion strength of the water-based ink.

Description

technical field [0001] The invention belongs to the technical field of printing materials, and in particular relates to a water-based ink for film printing and a preparation method thereof. Background technique [0002] Although solvent-based inks are currently widely used in the printing and packaging industry, environmental protection agencies around the world have successively issued restrictive policies because of their VOC content, and water-based inks have emerged as the times require. Whether in the production process or printing, water-based inks hardly emit VOC to the atmosphere, which is unmatched by solvent-based inks. At this stage, although domestic water-based flexo inks have occupied a large market share, plastic flexo inks are still mainly alcohol-soluble, and the printing performance of flexo water-based inks is still insufficient compared with solvent-based inks. For example, in BOPP plastics Adhesion is poor when printing on film, therefore, its applicati...

Claims

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Application Information

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IPC IPC(8): C09D11/102C09D11/107C09D11/03
CPCC09D11/03C09D11/102C09D11/107
Inventor 不公告发明人
Owner 长沙浩然医疗科技有限公司
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