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Method for producing laser transfer directly-plating paper

A technology of laser transfer and production method, applied in special paper, paper, papermaking and other directions, can solve the problems of poor laser gloss and clarity, greater harm to the environment and human body, and difficulty in production quality control, so as to avoid environmental problems. and harm to human body, good effect, good flatness effect

Inactive Publication Date: 2010-06-09
SHANGHAI HONGDUN ANTI COUNTERFEIT MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The transfer method is complex and the coating used contains a large amount of organic solvents, which makes it difficult to control the production quality and is harmful to the environment and human body
[0005] The direct plating process is as follows: (1) Coating a layer of paint on the paper; (2) Laser molding the coated paper; (3) Vacuum aluminum plating on the molded paper surface; (4) Aluminum plating The final paper surface is coated with a layer of paint; because the flatness of the substrate is not as good as the transfer method, it is easier to produce black spots after laser molding, and the laser gloss and clarity are not very good, which affects the laser effect.
[0006] Chinese patent 101037852 discloses a production method of direct-coated laser paper for cigarette lining. Compared with the transfer method, the adhesive is removed and the process is simplified; water-based paint is used, which eliminates the impact of the organic solvent of the transfer method on the environment and the environment. Harm to the human body; but the laser aluminized paper produced by this method is prone to black spots when laser molded, and the laser gloss and clarity are not as good as the transfer method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Laser molding the BOPP film, preheating temperature: 50℃; (2) Use a compound machine to coat a layer of paint on the molded surface of the laser molded BOPP film, then 100g / m 2 The paper is compounded with the BOPP film coating surface and enters the oven to dry. The coating moisture content of the coating is 5g / m 2 , Coating weight solid content: 40%, drying temperature 90℃, composite locomotive speed: 80m / min; (3) Peel the BOPP film from the paper; (4) Put the peeled paper into the aluminizing machine and transfer the coating surface Aluminized; (5) Coat a layer of paint on the aluminized surface of the paper with a coating moisture of 4g / m 2 , Coating weight solid content: 15%, drying at 70°C for 7 seconds, coating machine speed: 60m / min.

Embodiment 2

[0030] (1) Laser molding the BOPP film, preheating temperature: 80℃; (2) Use a compound machine to coat a layer of paint on the molded surface of the laser molded BOPP film, and then 80g / m 2 The paper is compounded with the BOPP film coating surface and enters the oven to dry. The coating moisture content of the coating is 6g / m 2 , Coating solid content: 42%, drying temperature 100℃, compound locomotive speed: 100m / min; (3) Peel the BOPP film from the paper; (4) Put the peeled paper into the aluminum plating machine and coat the transfer coating surface Aluminum; (5) Coat a layer of paint on the aluminized surface of the paper with a moisture content of 6g / m 2 , Coating solid content: 15%, drying at 90°C for 6 seconds.

Embodiment 3

[0032] (1) Laser molding the BOPP film, preheating temperature: 100℃, (2) Use a compound machine to coat a layer of paint on the molded surface of the laser molded BOPP film, then 40g / m 2 The paper is compounded with the BOPP film coating surface and enters the oven to dry. The coating moisture content of the coating is 7g / m 2 , Coating weight solid content: 45%, drying temperature 110℃, compound locomotive speed: 100m / min; (3) Peel the BOPP film from the paper; (4) Put the peeled paper into the aluminizing machine and transfer the coating surface Aluminized; (5) Coat a layer of paint on the aluminized surface of the paper with a coating moisture of 7g / m 2 , Coating weight solid content: 20%, dry at 100°C for 5 seconds.

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Abstract

The invention provides a method for producing laser transfer directly-plating paper, comprising the following steps of: (1) carrying out laser mould pressing on a BOPP thin film; (2) coating a layer of coating on a mould pressing surface of the BOPP thin film and with a compound machine after mould pressing, immediately compounding the paper and the coating surface of the BOPP thin film, wherein the size of the paper is 30-100g / m<2>; (3) stripping the BOPP thin film from the paper; (4) placing the stripped paper into an aluminizing machine and aluminizing on the transfer coating surface; and (5) coating a layer of coating on an aluminizing surface of the paper and drying. The invention avoids the defects of two methods, combines a transfer method and a directly-plating method, omits a composite adhesive used by the transfer method, simplifies the process flow, uses an environment-friendly water-based coating, avoids the harm of organic solvents with high content in the coating used by the transfer method to the environment and human body and simultaneously has more excellent laser mould pressing effect, higher glossiness and definition in comparison with the directly-plating method.

Description

Technical field [0001] The invention relates to a method for producing laser transfer direct-coated paper, which is used for a basis weight of less than 100g / m 2 The production of laser aluminized paper. technical background [0002] 100g / m 2 The following laser aluminized paper is a kind of flexible packaging printing material with laser anti-counterfeiting effect and metal "aluminum luster" with good barrier properties. It has been used in high-end cigarette lining paper, beer label paper, health care products, medicine, cosmetics, etc. In the inner packaging and trademark label of social products. In order to obtain the laser and metallic luster effect of the paper, the surface of the paper must be coated to meet the requirements of laser molding and vacuum aluminum plating. The surface coating of the paper can be obtained by directly coating the paper surface (direct plating method). It can be obtained by first coating on a film and then compositely transferring it to paper ...

Claims

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Application Information

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IPC IPC(8): D21H19/04D21H27/22
Inventor 施晓旦徐鹏王养臣
Owner SHANGHAI HONGDUN ANTI COUNTERFEIT MATERIAL
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