Die pressing coating capable of being transferred onto composite metal surface and laser film comprising die pressing coating

A technology of composite metal surface and laser film, which is applied in the direction of metal coating, metal layered products, coatings, etc., can solve the problems of bubble points on the surface of the molded layer, affect the embossing effect, and have no brightness, etc., to achieve weather resistance and flexibility Good performance, reduced solvent usage, and smooth molding process

Inactive Publication Date: 2013-02-06
GUANGDONG XINRUI NEW MATERIAL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the materials used as the lining paper of cigarette packs on the market mainly include three traditional materials: aluminum foil composite paper, transfer paper, and direct-plating lining paper; aluminum foil composite paper is made by wet or dry compounding of pure aluminum foil and base paper Composite wrapping paper; transfer paper is based on PET and BOPP, coated with color, vacuum aluminized and compounded with base paper, and then the substrate is peeled off to transfer the aluminized layer to the base paper; direct plating backing paper The coated base paper is directly placed in a vacuum aluminum coating machine for aluminum spraying; aluminum foil composite paper is used most because of its sealing performance, forming performance, and barrier properties compared with the other two traditional materials, but aluminum foil composite paper is due to The appearance is not bright enough, there is no laser visual effect produced by transfer paper for molding, the grade is low, and it cannot be used for high-end cigarette packaging
In order to solve this problem, those skilled in the art carry out compound transfer by adopting the aluminum plating effect base film containing the molded layer and the aluminum layer of

Method used

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  • Die pressing coating capable of being transferred onto composite metal surface and laser film comprising die pressing coating
  • Die pressing coating capable of being transferred onto composite metal surface and laser film comprising die pressing coating
  • Die pressing coating capable of being transferred onto composite metal surface and laser film comprising die pressing coating

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Embodiment 1

[0028] 1. Preparation of stock solution for molded coating

[0029] Put 9kg of cellulose acetate butyrate, 7kg of acrylic resin, 4kg of nitrocellulose solution, 32kg of methyl ethyl ketone, 17kg of propylene glycol methyl ether, 30.5kg of ethyl acetate and 0.5kg of mold release agent into a stainless steel container, and add 10 ㎏ mixed solvent (ethyl acetate: n-propyl = 1:1), after stirring for 5-10 minutes, the coating solution with a viscosity of 18-22 seconds as measured by Tu-4# cup is obtained.

[0030] 2. Preparation of laser film with molded coating

[0031] Choose a PET carrier film 1 with a thickness of 15 μm, use a 120-mesh honeycomb hexagonal anilox roller to coat to form a moldable coating 2, and control the dry coating amount between 1.2-1.4g / ㎡ when coating, and the drying temperature Set it at 110-160°C, set the machine speed at 100m / min, mold the dried PET film with hard press and medium pressure, control the molding temperature between 140-150°C,...

Embodiment 2

[0033] 1. Preparation of stock solution for molded coating

[0034] Put 8kg of cellulose acetate butyrate, 8kg of acrylic resin, 5kg of nitrocellulose solution, 32kg of methyl ethyl ketone, 16kg of propylene glycol methyl ether, 30.5kg of ethyl acetate and 0.5kg of mold release agent into a stainless steel container, and add 10 ㎏ mixed solvent (ethyl acetate: n-propyl = 1:1), after stirring for 5-10 minutes, the coating solution with a viscosity of 18-22 seconds as measured by Tu-4# cup is obtained.

[0035] 2. Preparation of base film containing molded coating

[0036] Choose a PET carrier film with a thickness of 18 μm, and use a 120-mesh honeycomb hexagonal anilox roller to coat to form a moldable coating. When coating, the dry coating amount is controlled between 1.2-1.4g / ㎡, and the drying temperature is set to 100-160°C, machine speed is set at 100m / min, the dried PET film is molded by hard pressing or medium pressure, the molding temperature is controlled ...

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Abstract

The invention discloses a die pressing costing capable of being transferred onto a composite metal surface. The die pressing costing comprises 6-10% of cellulose acetate butyrate, 4-8% of acrylic resin, 2-6% of nitrocotton liquid, 25-35% of butanone, 10-20% of propylene glycol monomethyl ether and 28-32% of ethyl acetate, and is 1.3-1.5 micrometers in thickness. The die pressing coating is compact in surface, not easy to erode by solvent utilized in follow-up processing, suitable in strength for die pressing, good in stripping, and particularly suitable for being transferred onto an aluminum foil surface of composite aluminum foil paper to be colored and embossed after the die pressing, so that the composite aluminum foil paper with laser effect can be obtained. The invention further provides a laser film comprising the die pressing coating. The laser film comprises a basic film, and the die pressing coating which is provided with laser patterns after die pressing treatment is coated on the basic film, and a vacuum aluminum coated layer is arranged on the die pressing coating. The composite aluminum foil paper with bright, smooth and massive laser effect can be obtained by compositing the laser film with the composite aluminum foil paper and peeling the same off, and the process is easy to control.

Description

technical field [0001] The present invention relates to a coating, in particular to a molded coating which can produce a laser effect on a substrate through transfer and molding, and more particularly to a molded coating which can be transferred to a composite metal surface and then molded to produce a laser effect. layer. The present invention also relates to a laser film containing the above molded coating. Background technique [0002] At present, the materials used as the lining paper of cigarette packs on the market mainly include three traditional materials: aluminum foil composite paper, transfer paper, and direct-plating lining paper; aluminum foil composite paper is made by wet or dry compounding of pure aluminum foil and base paper Composite wrapping paper; transfer paper is based on PET and BOPP, coated with color, vacuum aluminized and compounded with base paper, and then the substrate is peeled off to transfer the aluminized layer to the base paper; direct plat...

Claims

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Application Information

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IPC IPC(8): D21H19/08D21H19/34D21H19/20D21H19/14B32B15/12B32B7/12
Inventor 张东亮赵希华郑建武
Owner GUANGDONG XINRUI NEW MATERIAL TECH
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