Matt finish scratch-resistant film with high surface energy and preparation method thereof

A high surface energy, anti-scratch technology, applied in the field of packaging, can solve problems such as long curing time and prolong production cycle, achieve good anti-scratch performance, improve production efficiency, and low gloss.

Active Publication Date: 2018-10-09
张家港保税区康得菲尔实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the coating made by this technology adopts thermal curing process requires a long curing time, which prolongs the production cycle of the product. People urgently need an efficient new process to improve production efficiency and shorten the product cycle.

Method used

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  • Matt finish scratch-resistant film with high surface energy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A matte scratch-resistant film with high surface energy is a matte scratch-resistant film, comprising a matte scratch-resistant functional coating and a film substrate;

[0053] A method for preparing a matte scratch-resistant film with high surface energy, comprising the steps of:

[0054] 1) Coat the methacrylate curing system coating on the outside of the biaxially stretched polypropylene film with a thickness of 15 μm. The coating thickness is controlled at 2 μm, and then dried at 80 ° C for 5 seconds. The stretched polypropylene film is cured at a speed of 80m / min through a curing device with an oxygen concentration of ≤1000ppm, and the cured coating is subjected to corona treatment at a power of 2-5KW to obtain a 17um thick coating with high surface energy. matte anti-scratch film.

[0055] Wherein, in the methacrylate curing system coating, the non-volatile component content is 100%, and the average functionality is 3, including the NeoRad U-6288 (DSM company pr...

Embodiment 2

[0058] When a matte scratch-resistant film with high surface energy is a matte scratch-resistant functional precoating film, it includes a matte scratch-resistant functional coating and a film-based precoating film; the film-based precoating film is made of polyparaphenylene It is composed of ethylene glycol diformate film, primer layer and hot melt adhesive layer.

[0059] A method for preparing a matte scratch-resistant film with high surface energy, comprising the steps of:

[0060] Firstly, an aqueous solution of polyethyleneimine is coated on the inner side of a 100um polyethylene terephthalate film (PET), and dried in an oven to form a 0.01um primer layer. The ethylene-vinyl acetate copolymer is coated on the primer layer by extrusion compounding process to form a 100um hot melt adhesive layer to obtain a 200um thick PET pre-coated film. Apply the acrylate-epoxy compound system coating on the outside of the PET pre-coating film with a coating thickness of 10um, and dry ...

Embodiment 3

[0064] When a matte scratch-resistant film with high surface energy is a matte scratch-resistant functional precoating film, it includes a matte scratch-resistant functional coating and a film-based precoating film; the film-based precoating film is made of nylon film, Composed of base coat and hot melt adhesive layer. .

[0065] A method for preparing a matte scratch-resistant film with high surface energy, comprising the steps of:

[0066] First, the mixed system of methacrylate-vinyl compound is coated on the outside of a 12 μm thick nylon film, the coating thickness is 5um, and dried at 80°C for 5s. The speed is cured by a curing device with an oxygen concentration of ≤500ppm, and the cured coating is flame-treated at a power of 5-10KW to obtain a 17um thick matte scratch-resistant film with high surface energy. Then, the polyurethane aqueous solution is coated on the inner side of the nylon film, and an undercoat layer is formed after being dried in an oven. The ethyle...

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Abstract

The invention discloses a matt finish scratch-resistant film with high surface energy. The matt finish scratch-resistant film is a matt finish scratch resistant thin film or a matt finish scratch-resistant functional precoating film; the matt finish scratch-resistant thin film comprises a matt finish scratch resistant functional coating and a film substrate; the matt finish scratch resistant functional precoating film comprises a matt finish scratch resistant functional coating and a film-based precoating film. The invention also discloses a preparation method of the matt finish scratch-resistant film. By using the preparation method, the twice curing processes and the surface treatment processes of corona discharge or plasma treatment and the like are combined; the high surface energy andlow luster degree are given to the matt finish scratch-resistant film; the storage and service life of the matt finish scratch-resistant film can be greatly prolonged; the printing applicability andthe coating applicability of the surface of the matt finish scratch-resistant film can be improved; the requirements of the subsequent processing work procedures can be met; the high market competition advantages are realized in the film product.

Description

technical field [0001] The invention belongs to the technical field of packaging. More specifically, it relates to a matte scratch-resistant film with high surface energy and a preparation method thereof. Background technique [0002] At present, the matte film used for packaging in the market can give people a simple and heavy feeling when covered on the packaging material, and the color is rich but unobtrusive, which is deeply loved by consumers. However, the packaging materials covered with conventional matte films are often scratched or scratched under the action of external force due to mechanical contact during transportation and normal use, which affects the appearance of the packaging materials. Thereby the matte film with higher scratch resistance just arises at the historic moment. [0003] There are also related anti-scratch film products in the packaging industry. In order to reduce its surface gloss and improve wear resistance and scratch resistance, the metho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/50
CPCC08J5/18C08J7/04C08J2323/12C08J2433/04C08J2479/02C09D4/00C09J2423/106C09J2433/00C09J2467/006C09J2477/006C09J2479/00C09J2301/122C09J2301/304C09J2301/40
Inventor 张震鲁王慧荣张涛赵斌武俊
Owner 张家港保税区康得菲尔实业有限公司
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