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Printing material of printing film and preparation method

A printing material, printing film technology, applied in conductive coatings, carboxyl rubber coatings, paints containing biocides, etc., can solve the problems of no peeling force of the ink layer, high resin brittleness, poor hydrophilicity, etc., to achieve good economic and social benefits, excellent pulverization resistance, excellent low temperature resistance

Active Publication Date: 2017-07-07
江苏耐斯数码科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the adhesion fastness of the existing primer adhesives (such as polyurethane, acrylic pressure-sensitive adhesive, etc.) cannot meet the requirements of the Indigo printing process. The phenomenon that the cloth sticks badly and sticks to the blanket
This pollutes the blanket very seriously, and it will cause the blanket to be scrapped over time
Although solvent-based coatings such as epoxy resins, alkyd resins, and vinyl acetate resins have good adhesion to PET substrates; however, due to the high brittleness of these resins, they do not have low-temperature flexibility and cannot be used as primers.
[0016] After the Indigo printing test, it was found that commonly used water-based resin coatings such as polyurethane, PVC resin, EVA resin, and PVAc emulsion, due to their poor hydrophilicity, are too different from the amphiphilic polymers in ElectroInk. ElectroInk is coated with the above three resins. The surface of the layer cannot be printed, and the ink layer has no peeling force; and the hydrophilic modified acrylate has better adhesion fastness to the electronic ink, but since the acrylate has a specific glass transition temperature, it is affected by the temperature. Larger, prone to "summer sticky and winter brittle", there are many problems in actual production

Method used

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  • Printing material of printing film and preparation method

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Experimental program
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preparation example Construction

[0060] A kind of preparation method of printing film class, described antistatic coating 2 comprises following preparation method:

[0061] A), in the water-based carboxy-modified styrene-butadiene latex, slowly mix polyaniline antistatic agent, stir 1 hour under 500rpm rotating speed, the material is mixed evenly;

[0062] B), then slowly add the diluted leveling agent and defoamer, and stir at a low speed for 20 minutes;

[0063] Add a small amount of leveling agent to adjust the surface tension of the coating to ≦30mN / m at 20°C, which is slightly lower than the surface tension of the PET substrate; control the solid content of the coating to 15%, and the viscosity to 150cps to meet the extrusion slope Process requirements for flow coating method;

[0064] C), finally adjust the viscosity of the coating to be 100cps, filter through a 300-mesh filter, and let it stand for defoaming;

[0065] Carboxyl-modified waterborne styrene-butadiene latex is selected as the film-formin...

Embodiment 1

[0083] Embodiment 1, the coating formula of antistatic coating 2, is made up of following raw materials according to weight parts: 95 parts of carboxy-modified water-based styrene-butadiene latex; 2 parts of polyaniline antistatic agent; 0.1 part of leveling agent; defoamer 0.1 part; 92 parts of water;

[0084] The coating formula of printing coating 1 is composed of the following raw materials according to parts by weight: 35 parts of acrylic modified polyurethane emulsion; 12 parts of silica sol; 20 parts of water; 10 parts of ethanol; 0.5 parts of leveling agent; 0.5 parts of defoaming agent;

[0085] The acrylic modified polyurethane emulsion includes a prepolymer and an emulsion. The prepolymer is a prepolymer of the polyurethane segment. The formula of the prepolymer consists of the following raw materials in parts by weight: 35 parts of diphenylmethane diisocyanate; 32 parts of polytetrahydrofuran diol 2.5 parts of triethylamine; 5 parts of dimethylolbutyric acid; 0.15 ...

Embodiment 2

[0086] Embodiment 2, the coating formula of antistatic coating 2, is made up of following raw material according to weight parts: 100 parts of carboxy-modified water-based styrene-butadiene latex; 5 parts of polyaniline antistatic agent; 0.1 part of leveling agent; defoamer 0.1 part; 95 parts of water;

[0087] The paint formula of printing coating 1 is composed of the following raw materials according to parts by weight: 40 parts of acrylic modified polyurethane emulsion; 14 parts of silica sol; 20 parts of water; 10 parts of ethanol; 0.5 parts of leveling agent; 0.5 parts of defoaming agent;

[0088] The acrylic modified polyurethane emulsion includes a prepolymer and an emulsion. The prepolymer is a prepolymer of the polyurethane segment. The formula of the prepolymer consists of the following raw materials in parts by weight: 40 parts of diphenylmethane diisocyanate; 40 parts of polytetrahydrofuran diol 2.5 parts of triethylamine; 9 parts of dimethylolbutyric acid; 0.15 pa...

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Abstract

The invention discloses a printing material of a printing film and a preparation method. An anti-static coating and a printing coating are successively arranged outward on the top surface and the bottom surface of a PET film. The paint formula of the anti-static coating is composed of the following raw materials in parts by weight: 90-110 parts of carboxyl modified aqueous styrene-butadiene latex, 1-10 parts of a polyaniline anti-static agent, 0.1 part of a flatting agent, 0.1 part of a defoamer and 90-105 parts of water. The paint formula of the printing coating is composed of the following raw materials in parts by weight: 30-50 parts of an acrylic acid modified polyurethane emulsion, 10-20 parts of a silica sol, 20 parts of water, 10 parts of ethanol, 0.5 part of a flatting agent and 0.5 part of a defoamer. The material disclosed by the invention is good in weather resistance and excellent in printing effect, and has good economical and social benefits in popularization and application.

Description

technical field [0001] The invention belongs to the field of digital printing technology and images, and relates to a printing material of PET printing film and a preparation method thereof, which is applied to a PET printing film material processed by special coating and outputted by HP Indigo color digital transfer printing technology. Widely used in commercial advertising, packaging, labeling and other industries. Background technique [0002] HP Indigo color digital transfer printing technology is an environmentally friendly and efficient printing technology that has just emerged. Relying on its color digital printing technology and process, HP Indigo series digital printing machines provide the industry's best printing quality, wide color gamut, load diversity, high speed, high efficiency and flexibility, and can print each printing copy variablely, Hundreds of different images can be printed with one typesetting. HP Indigo printing offers image processing capabilitie...

Claims

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Application Information

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IPC IPC(8): C08J7/04C09D113/02C09D179/02C09D5/24C09D5/16C09D151/08C09D5/14C09D7/12C08G18/76C08G18/66C08G18/48C08G18/34C08G18/10C08F283/00C08F220/06C08F220/56C08F222/06
CPCC08F283/006C08G18/0823C08G18/10C08G18/4854C08G18/7671C08J7/042C08J2367/02C08J2413/02C08J2451/08C08K3/36C08L2201/04C09D5/14C09D5/1687C09D5/24C09D7/61C09D113/02C09D151/08C08L79/02C08G18/348C08F220/06
Inventor 李冰洁李剑平
Owner 江苏耐斯数码科技股份有限公司
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