High-gloss direct plating method binding layer coating as well as preparation method and application thereof

A high-gloss, bonding layer technology, applied in the direction of cellulose coating, coating, fiber raw material treatment, etc., can solve the problems of low cost, rough surface effect, etc., and achieve the effect of low production cost, high gloss, and environmental protection advantages

Active Publication Date: 2010-03-17
ZHEJIANG JINGHUA LASER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cost of direct-plating aluminum-sprayed paper is low and environmentally friendly, but the surface effect is rough, which is only suitable for low-end packaging

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The preparation steps of the high-gloss direct plating bonding layer coating are as follows:

[0041] (1) Prepare materials according to the following components and content (parts by weight):

[0042] components

parts by weight

Water-based carboxymethyl styrene-butadiene latex

10

Water-based cellulose emulsion (W-CAB)

20

Water-Based Acrylic Emulsion

20

Co-solvent ethanol

13

Deionized water

36

pH adjuster ammonia water

2

Leveling agent modified silicone

0.2

Defoamer Modified Polysiloxane

0.1

[0043] The glass transition temperature Tg of the water-based acrylic emulsion is 50°C, and the weight-average molecular weight Mw is 60,000; the glass transition temperature Tg of the water-based carboxymethyl styrene-butadiene latex is 15°C, and the weight-average molecular weight Mw is 30,000; the water-based cellulose emulsion (W-CAB) The glass transitio...

Embodiment 2

[0053] The preparation steps of the high-gloss direct plating bonding layer coating are as follows:

[0054] (1) Prepare materials according to the following components and content (parts by weight):

[0055] components

parts by weight

Water-based carboxymethyl styrene-butadiene latex

20

Water-based cellulose emulsion (W-CAB)

22

Co-solvent isopropanol

20

Deionized water

37.2

pH adjuster triethylamine

0.5

Leveling agent modified silicone

0.3

Defoamer Nonionic Surfactant

0.05

[0056] The glass transition temperature Tg of water-based carboxymethyl styrene-butadiene latex is 80°C, and the weight-average molecular weight Mw is 150,000; the glass transition temperature Tg of water-based cellulose emulsion (W-CAB) is 110°C, and the weight-average molecular weight Mw is 160,000 .

[0057] (2) Put the water-based resin into the reaction kettle and stir evenly at a low spee...

Embodiment 3

[0066] The high-gloss direct plating method binding layer coating is prepared according to the following components and contents (parts by weight):

[0067] components

parts by weight

Water-Based Acrylic Emulsion

18

Water-based cellulose emulsion (W-CAB)

12

Co-solvent ethanol

23

Deionized water

37.2

pH adjuster Dimethylethylamine

0.5

Leveling agent modified silicone

0.2

Defoamer modified silicone defoamer

0.1

[0068] The glass transition temperature Tg of the water-based acrylic emulsion is 130°C, and the weight-average molecular weight Mw is 300,000; the glass transition temperature Tg of the water-based cellulose emulsion (W-CAB) is 110°C, and the weight-average molecular weight Mw is 160,000;

[0069] The preparation method of coating is identical with embodiment 1.

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Abstract

The invention discloses a direct plating method binding layer coating as well as a preparation method and an application thereof. The existing transferring method has higher cost of spray aluminium paper, uses a great amount of organic solvent, and does not accord with related requirements; and the direct plating method has low cost of spray aluminium paper and environmental protection, while is rough in surface effect, thus only being suitable for low-end package. The invention is characterized in that: the coating is prepared by the following materials by weight parts: 30-50 parts of waterborne resin, 13-30 parts of cosolvent, 36-40 parts of deionized water, 0.1-2 parts of pH value conditioning agent, 0.2-0.3 parts of leveling agent, and 0.05-0.1 parts of defoaming agent. The direct plating method binding layer coating takes water as main dispersing medium, does not contain organic solvent substantially, has extremely low content of volatile organic compounds and low production cost, and can achieve mirror effect in the finished paper prepared by using the coating due to high glossiness.

Description

technical field [0001] The invention relates to the field of water-based coatings, in particular to a high-gloss direct-plating bonding layer coating and a preparation method and application thereof. Background technique [0002] The aluminum spraying process began to develop in the early 1960s. It is a process of vacuum-depositing a layer of aluminum on OPP and PET films. Due to its bright and eye-catching appearance and good barrier (water, vapor, light) properties, Widely used in flexible packaging industry. In the 1970s, Europe began to process aluminum sprayed paper with direct plating method, which can be used for spraying aluminum on light silver thin paper. In the early 1980s, Europeans invented the transfer method of spraying aluminum paper. At present, due to its environmental protection and aesthetic characteristics, aluminum-sprayed paper by transfer method is more and more favored by the packaging industry; but the cost of aluminum-sprayed paper by transfer me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D109/08C09D101/02D21H23/72D21H23/52D21H19/66
Inventor 熊建华袁坚峰孙建成
Owner ZHEJIANG JINGHUA LASER TECH CO LTD
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