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Primary coat dope for treating vacuum aluminum plating paper

A vacuum aluminized paper and coating technology, applied in the field of surface treatment of beer label base paper, can solve problems such as wear resistance, poor alkali resistance, unfavorable for safe production, strong toxic smell, etc., and achieve excellent alkali resistance and wear resistance Good sex, high gloss effect

Inactive Publication Date: 2008-07-02
浙江爱迪尔包装股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using xylene and other organic substances as solvents has a strong toxic smell, which is not conducive to safe production and improvement of working conditions, and is likely to cause environmental pollution
[0004] Chinese patent CN1944790A discloses a preparation method of water-based base material for vacuum aluminized paper treatment. The coating film has excellent water resistance, high gloss, and good adhesion, but poor wear resistance and alkali resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1) Add 5g of acrylic resin (acid value 150 (mgKOH / g), molecular weight 1000g / mol), 0.4g of diethylamine, and 29.4g of water into a 500ml flask, mix and stir, heat up to 60°C, keep warm for 2 hours, and dissolve into aqueous solution, spare;

[0031] 2) The acrylic resin aqueous solution prepared in step 1), 100g acrylate resin (Tg=-10°C), 5g vinyl resin (Tg=110°C), 0.011g leveling agent (polyether modified organosiloxane, BD-3033, Hangzhou Baoerde Co., Ltd.), 0.11g defoamer (modified polysiloxane, GX-100, Shanghai Dayu Chemical Co., Ltd.) and 100g ethanol and 5.16g deionized water were added to a 500ml flask, Mix and stir for 30 minutes to prepare a primer for vacuum aluminized paper treatment, with a solid content of 44.96 wt % and a pH of 7.02.

Embodiment 2

[0033] 1) Add 30g of acrylic resin (acid value 400 (mgKOH / g), molecular weight 5000g / mol), 6g diethanolamine, and 31.5g deionized water into a 500ml flask, mix and stir, heat up to 80°C, keep warm for 2 hours, and dissolve into Aqueous solution, spare.

[0034] 2) The acrylic resin aqueous solution prepared in step 1), 100g acrylate resin (Tg=20°C), 20g vinyl resin (Tg=50°C), 0.15g leveling agent (polyether modified organosiloxane, BNK -A900, Ruyi Road, Central City, Longgang District, Shenzhen), 0.75g defoamer (modified polysiloxane, GX-200, Shanghai Dayu Chemical Co., Ltd.), 1.5g water-soluble wax emulsion (DS-RH325M, Shanghai Dongsheng New Material Co., Ltd., 25wt%) and 597.6g deionized water were added in a 1000ml flask, mixed and stirred for 30 minutes to prepare a primer for vacuum aluminized paper treatment, with a solid content of 20.04wt%, pH=9.93.

Embodiment 3

[0036] 1) Add 15g of acrylic resin (acid value 300 (mgKOH / g), molecular weight 2500g / mol), 3g of triethanolamine, and 30g of deionized water into a 500ml flask, mix and stir, heat up to 70°C, keep warm for 2 hours, and dissolve into an aqueous solution ,spare.

[0037] 2) The acrylic resin aqueous solution prepared in step 1), 100g acrylate resin (Tg=0°C), 10g vinyl resin (Tg=90°C), 0.1g leveling agent (polyether modified organosiloxane, LH -855, Foshan Linghui Chemical Co., Ltd.), 0.4g defoamer (modified polysiloxane, SAG622, General Electric (China) Co, Ltd.Silicones), 1.0g water-soluble wax emulsion (DS-RH325M, Shanghai Dongsheng New Material Co., Ltd., 25wt%) and 80g ethanol and 190.42g deionized water were added in a 1000ml flask, mixed and stirred for 30 minutes to prepare a primer for vacuum aluminized paper treatment, solid content 30.08wt%, pH=8.40.

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Abstract

The invention provides a bottom coating for processing vacuum aluminum-plated paper and a preparation method and application thereof. The bottom coating comprises, by weight parts, acrylic resin 5 to 30 parts, a neutralizing agent 0.4 to 6 parts, acrylate resin 100 parts, vinyl resin 5 to 20 parts, a leveling agent 0.011 to 0.15 parts, a defoaming agent 0.11 to 0.75 parts, a wear-resisting agent 0 to 1.5 parts, ethanol 0 to 100 parts and water 30 to 650 parts, wherein the neutralizing agent is selected from one or more of diethylamine, triethylamine, diethanolamine or triethanolamine, and the wear-resisting agent is water-soluble wax emulsion. The bottom coating for vacuum aluminum-plated paper treatment can be used for surface treatment of beer label paper. The bottom coating for the vacuum aluminum-plated paper treatment can meet the requirement of high performance and environment protection for vacuum aluminum-plating coating, and has the advantages of water solubility, safety, environment protection, excellent alkali tolerance, high glossiness and good abrasion resistance.

Description

technical field [0001] The invention relates to a primer coating for vacuum aluminized paper treatment, which is used for surface treatment of beer label base paper. Background technique [0002] Vacuum aluminum-coated paper is a new type of packaging paper with low cost and can replace composite aluminum foil. Its use can greatly reduce the amount of aluminum used. Since vacuum aluminizing has high requirements on the surface gloss and smoothness of the aluminized base paper (white glossy paper) used, the surface of the aluminized base paper must be treated before aluminizing. That is, use a coating machine to coat a layer of coating paint on its surface, and then send it to a vacuum coating machine for aluminum plating. The purpose of applying a layer of coating paint is to solve the unevenness of the paper surface, improve the surface gloss and smoothness, and facilitate vacuum aluminum plating. [0003] At present, the paper coatings used in the production of vacuum a...

Claims

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Application Information

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IPC IPC(8): D21H19/20
Inventor 施晓旦王养臣尹东华
Owner 浙江爱迪尔包装股份有限公司
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