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Water-based gravure ink for BOPP film inner printing and preparation method thereof

A gravure ink, water-based technology, applied in the field of water-based gravure ink and its preparation, can solve the problems of low production and use costs, environmental pollution, etc., achieve fast drying speed, reduce the risk of safety accidents, and good compatibility.

Pending Publication Date: 2021-05-07
GUANGDONG YINGKE GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the object of the present invention is to provide a water-based gravure ink for back printing of BOPP films, which can solve the problem of environmental pollution of traditional film back printing solvent-based gravure inks. The VOCs emission in the printing process of the water-based gravure ink can meet the national standard, that is, the VOCs of the non-absorbent substrate gravure ink is less than or equal to 30%; the water-based ink has strong color reproduction performance, fast drying speed, low odor, and clear printing dot restoration , Thick, plump advantages; the water-based gravure ink is designed with high solid content and low viscosity formula to adapt to high-speed and low-viscosity printing of inks, no obvious bubbles, good dilution resistance, and excellent adhesion to BOPP film substrates , composite fastness and composite suitability, low production and use costs, and environmentally friendly

Method used

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  • Water-based gravure ink for BOPP film inner printing and preparation method thereof

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preparation example Construction

[0029] In one embodiment of the present invention, a kind of preparation method of the above-mentioned water-based gravure ink that is used for BOPP film inner printing comprises the steps:

[0030](1), after stirring and mixing the raw materials in the composite intermediate in proportion, grinding to a fineness of ≤20 μm to obtain the composite intermediate;

[0031] (2) Mix quick-drying modified acrylic resin liquid, water-based polyurethane dispersion, matte powder, deionized water, absolute ethanol, defoamer and composite intermediate in proportion, and stir evenly to prepare BOPP Water-based gravure ink printed on film.

Embodiment 1

[0033] A water-based gravure ink used for back printing of BOPP films, comprising the following raw materials in parts by weight: 18 parts of quick-drying modified acrylic resin liquid, 10 parts of water-based polyurethane dispersion, 1 part of matte powder, 8 parts of deionized water, 7 parts of absolute ethanol, 40 parts of composite intermediate, and 0.08 parts of defoamer.

[0034] Further, each part of the composite intermediate includes the following raw materials by weight: 30 parts of quick-drying modified acrylic resin liquid, 20 parts of pigment, 0.2 part of defoamer, 18 parts of deionized water, 18 parts of absolute ethanol, 15 parts of nano calcium carbonate.

[0035] Further, the particle size of the nano-calcium carbonate is 30-60 nm.

[0036] Further, the aqueous polyurethane dispersion is Joncryl FLX5201. The quick-drying modified acrylic resin liquid is Li Jiaqiao RT5313 resin liquid.

[0037] Further, the matte powder is precipitated silica. The average p...

Embodiment 2

[0043] A water-based gravure ink used for back printing of BOPP films, comprising the following raw materials in parts by weight: 10 parts of quick-drying modified acrylic resin liquid, 5 parts of water-based polyurethane dispersion, 0.5 parts of matte powder, 5 parts of deionized water, 5 parts of absolute ethanol, 30 parts of composite intermediate, 0.05 part of defoamer.

[0044] Further, each part of the composite intermediate includes the following raw materials by weight: 20 parts of quick-drying modified acrylic resin liquid, 15 parts of pigment, 0.1 part of defoamer, 15 parts of deionized water, 15 parts of absolute ethanol, 10 parts of nano calcium carbonate.

[0045] Further, the defoamer is organically modified silicone emulsion, which does not contain VOCs.

[0046] A kind of preparation method of the above-mentioned water-based gravure ink that is used for printing in BOPP film comprises the steps:

[0047] (1), after stirring and mixing the raw materials in the...

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Abstract

The invention relates to the technical field of ink, in particular to water-based gravure ink for BOPP film inner printing and a preparation method thereof. The water-based gravure ink is prepared from the following raw materials in parts by weight: 10-25 parts of quick-drying modified acrylic resin liquid, 5-15 parts of waterborne polyurethane dispersion, 0.5-1.5 parts of matte powder, 5-10 parts of deionized water, 5-10 parts of absolute ethyl alcohol, 30-50 parts of composite intermediate and 0.05-0.1 part of defoaming agent. The water-based gravure ink disclosed by the invention has the advantages that the content of VOCs reaches the national standard limit requirement, the water-based gravure ink is environment-friendly, the stability is good, the color developing property is excellent, the color reduction performance is strong, the water-based gravure ink has excellent adhesive force on a BOPP film, the compounding firmness and the compounding suitability are excellent, and the 'after-tack' effect is particularly obvious; the preparation method is simple and convenient to operate, easy to control and low in production cost; and the printing ink is easy to print and good in adaptability, and is particularly suitable for compounding with paper and aluminum-plated CPP.

Description

technical field [0001] The invention relates to the technical field of gravure water-based ink, in particular to a water-based gravure ink used for back printing of BOPP films and a preparation method thereof. Background technique [0002] Traditional film printing is mainly based on gravure solvent-based ink, but as we all know, the biggest shortcoming of traditional gravure solvent-based ink is also a problem that is difficult to improve, because it is mainly composed of organic compounds, such as toluene, ester Most of the organic matter will volatilize during the ink printing or drying process, causing a series of harm to the human body and the environment that cannot be ignored. The current policy requires enterprises to achieve environmental protection production and environmental protection emissions. Solvent-based inks are obviously to be phased out, and the new water-based inks meet the green and environmental protection requirements advocated by the policy. Its dev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/107C09D11/102C09D11/03C09D11/033
CPCC09D11/107C09D11/102C09D11/03C09D11/033
Inventor 刘润林连坤鹏谢亚喜姚征
Owner GUANGDONG YINGKE GRP CO LTD
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