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Primer-free BOPP digital matt film with high adhesive strength, and preparation method thereof

A technology of high adhesion and primer, applied in chemical instruments and methods, lamination, layered products, etc., can solve the problems of increasing the energy consumption of the pre-coating film process, difficult control of the processing process, and affecting the brightness of the pre-coating film. , to achieve beautiful appearance effect, beautiful high-tech anti-counterfeiting function, and improve the effect of anti-scratch performance

Inactive Publication Date: 2019-11-15
ANHUI GUOFENG PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The current coating technology is roughly divided into two types: coating film and pre-coating film. In the coating film technology, there is volatilization and overflow of toxic substance benzene, which can easily form air bubbles between the film and paper and affect the appearance, and the adhesive strength is low. There are safety hazards in the production process, which have been gradually replaced by pre-coating film technology; most of the pre-coating films currently have a primer, that is, the primer is coated on the surface of the base film, dried and then combined with hot melt adhesive ; but after the pre-coating film is coated on the surface of the printed matter, the primer will precipitate and pollute the film surface, and the primer will also affect the brightness of the pre-coating film. Process energy consumption makes the processing process difficult to control

Method used

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  • Primer-free BOPP digital matt film with high adhesive strength, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A primer-free high-bond strength BOPP digital matting film in this embodiment, from top to bottom is an upper surface layer, a subsurface layer, a core layer and a lower surface layer, wherein the upper surface layer and the subsurface layer are matting layers, Composed of 55 wt% copolymerized polypropylene and 45 wt% high density polyethylene.

[0031] The core layer consists of 0.5 wt% antistatic agent and 99.5 wt% homopolypropylene.

[0032] The lower surface layer is made of 90wt% metallocene linear low density polyethylene and 10wt% organic polymer anti-adhesive masterbatch.

[0033] Wherein the organic polymer anti-adhesive masterbatch in the lower surface layer is composed of spherical acrylate particles with a particle size of 2 μm and copolymerized polypropylene.

[0034] Based on the total thickness of the BOPP digital matting film, in this embodiment, the thickness of the upper surface layer and the subsurface layer accounts for 30%, the thickness of the low...

Embodiment 2

[0041] A primer-free high-bond strength BOPP digital matting film in this embodiment, from top to bottom is an upper surface layer, a subsurface layer, a core layer and a lower surface layer, wherein the upper surface layer and the subsurface layer are matting layers, Composed of 50 wt% copolymerized polypropylene and 50 wt% high density polyethylene.

[0042] The core layer consisted of 1.5 wt% antistatic agent and 98.5 wt% homopolypropylene.

[0043] The lower surface layer is composed of 97wt% metallocene linear low density polyethylene and 3wt% organic polymer anti-adhesive masterbatch.

[0044] Wherein the organic polymer anti-adhesive masterbatch in the lower surface layer is composed of spherical acrylate particles with a particle size of 1 μm and copolymerized polypropylene.

[0045] Based on the total thickness of the BOPP digital matting film, in this embodiment, the thickness of the upper surface layer and the subsurface layer accounts for 12%, the thickness of the...

Embodiment 3

[0052] A primer-free high-bond strength BOPP digital matting film in this embodiment, from top to bottom is an upper surface layer, a subsurface layer, a core layer and a lower surface layer, wherein the upper surface layer and the subsurface layer are matting layers, Composed of 45 wt% copolymerized polypropylene and 55 wt% high density polyethylene.

[0053] The core layer consisted of 2.5 wt% antistatic agent and 97.5 wt% homopolypropylene.

[0054] The lower surface layer is composed of 95wt% metallocene linear low density polyethylene and 5wt% organic polymer anti-adhesive masterbatch.

[0055] Wherein the organic polymer anti-adhesive masterbatch in the lower surface layer is composed of spherical acrylate particles with a particle size of 3 μm and copolymerized polypropylene.

[0056] Based on the total thickness of the BOPP digital matting film, in this embodiment, the thickness of the upper surface layer and the subsurface layer accounts for 20%, the thickness of the l...

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Abstract

The invention relates to a primer-free BOPP digital matt film with a high adhesive strength, and a preparation method thereof. The film is sequentially composed of an upper surface layer, a secondarysurface layer, a core layer and a lower surface layer, and each of the upper surface layer and the secondary surface layer is composed of co-polypropylene and high density polyethylene; the core layeris composed of homopolypropylene and an antistatic agent; the lower layer is composed of an organic high-molecular anti-stick master batch and metallocene linear low density polyethylene; and the organic high-molecular anti-stick master batch is composed of spherical acrylate particles and co-polypropylene. The lower surface is directly coated with an EVA melt, and hot pressing compounding is carried out to prepare a pre-coating film, so the pollution of a primer to the environment is avoided; and the organic high-molecular anti-stick master batch added to the lower surface plays a role in anti-sticking, and also can reduce the influences on the optical properties of the film and ensure the light transmittance of the matt film.

Description

technical field [0001] The invention relates to the technical field of thin films, in particular to a BOPP digital matting film with high bonding strength free of primer and a preparation method thereof. Background technique [0002] In recent years, due to the rapid development of digital printing, digital photos and digital advertising prints have been widely used, and have also developed rapidly in the field of packaging; digital matte pre-coating film has an excellent matte effect, which preserves image color while minimizing glare . [0003] In view of the excellent color contrast of the digital matte pre-coating film, the digital pre-coating film can be widely used in the post-press lamination of mainstream digital printing products in the world today. It has the characteristics of high transparency and high gloss, and can improve the color saturation of digital printing. , has a strong combination with digitally printed paper and toner / ink, and complies with US FDA 2...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/32B32B27/08B32B27/18B32B37/00
CPCB32B27/08B32B27/18B32B27/32B32B37/00
Inventor 王恒煜王红兵张少伟张涛谢城城
Owner ANHUI GUOFENG PLASTIC
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