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Biaxially oriented polypropylene lamination film base material as well as preparation method and application thereof

A technology of biaxial stretching and polypropylene, which is applied in the field of film substrates and its preparation, can solve the problems of space occupation and energy consumption, long drying tunnel and heat, flammability and explosion, etc., so as to reduce energy consumption and prevent hot melting High glue content, the effect of improving peel strength

Active Publication Date: 2016-04-13
GUANGDONG DECRO FILM NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a process is not only prone to flammable and explosive safety hazards, but at the same time, drying the AC agent often requires a long drying tunnel and heat, resulting in space occupation and energy consumption.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: Preparation of the biaxially oriented polypropylene precoat film base material of the present invention

[0027] Prepare the surface layer polypropylene resin: get 96wt% T36F polypropylene resin (manufacturer is China Petrochemical Corporation, melt index is 2.6g / 10min), and 4wt% AB6019PP anti-blocking masterbatch (manufacturer is Suzhou Constamp Engineering Plastic Co., Ltd.), mix the two evenly to obtain the surface layer polypropylene resin.

[0028] Prepare the core layer polypropylene resin: get 99wt% T36F polypropylene resin (manufacturer is Sinopec Corporation, melt index is 2.6g / 10min), and 1wt% AS2335PPTR antistatic masterbatch (manufacturer is Shantou Best Technology Co., Ltd.), and mix the two evenly to obtain the core layer polypropylene resin.

[0029] Prepare ethylene-vinyl acetate resin: take ethylene-vinyl acetate resin with a VA content of 4.3 wt % and a melt index of 1.1 g / 10 min.

[0030] The surface layer polypropylene resin (layer A)...

Embodiment 2

[0031] Embodiment 2: Preparation of the biaxially oriented polypropylene precoat film base material of the present invention

[0032] Prepare the surface layer polypropylene resin: take FM630H matting masterbatch (manufactured by Jiangyin Jingliang Plastic Co., Ltd.).

[0033] Prepare the core layer polypropylene resin: get 99wt% T36F polypropylene resin (manufacturer is Sinopec Corporation, melt index is 2.6g / 10min), and 1wt% AS2335PPTR antistatic masterbatch (manufacturer is Shantou Best Technology Co., Ltd.), and mix the two evenly to obtain the core layer polypropylene resin.

[0034] Prepare ethylene-vinyl acetate resin: take ethylene-vinyl acetate resin with a VA content of 6.0 wt % and a melt index of 4.5 g / 10 min.

[0035]The surface layer polypropylene resin (layer A), core layer polypropylene resin (layer B) and ethylene-vinyl acetate resin (layer C) are co-extruded through an extruder, and the extrusion temperature of layer A and layer B is controlled at 230 ℃, th...

Embodiment 3

[0036] Embodiment three: prepare the biaxially stretched polypropylene precoat film of the present invention

[0037] Prepare hot melt adhesive: take ethylene-vinyl acetate resin with VA content of 18wt% and melt index of 15g / 10min.

[0038] Get the biaxially stretched polypropylene precoat film base material that embodiment one or embodiment two make, on the surface coating above-mentioned ethylene-vinyl acetate hot melt adhesive of its ethylene-vinyl acetate layer, coating thickness is 5 μ m, After corona treatment, the biaxially stretched polypropylene precoat film is obtained.

[0039] After coating, use 3M adhesive tape to conduct interlayer peeling test to observe whether there is peeling of EVA hot melt adhesive layer. Experiments have proved that the precoat film of this embodiment does not have the phenomenon of hot melt adhesive peeling off.

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Abstract

The invention relates to a biaxially oriented polypropylene lamination film base material as well as a preparation method and an application thereof. The biaxially oriented polypropylene lamination film base material comprises a polypropylene surface layer, a polypropylene core layer and an ethylene-vinyl acetate layer, and is prepared by coextrusion and bidirectional stretching of surface-layer polypropylene resin, core-layer polypropylene resin and ethylene-vinyl acetate resin. The biaxially oriented polypropylene lamination film base material can be directly coated with EVA hot melt adhesive without coating a bottom sizing agent, thus simplifying a preparation process of a lamination film, avoiding potential safety hazard caused by organic solvents in the bottom sizing agent, being capable of improving production efficiency and reducing energy consumption, and avoiding the problem of color change in the storage period of a film base material caused by a conventional bottom coating method. The EVA priming coat has good binding force with EVA hot melt adhesive in the prior art and can also improve the stripping strength of the EVA hot melt adhesive coating.

Description

technical field [0001] The invention relates to a film base material and its preparation method and application, in particular to a biaxially stretched polypropylene precoat film base material and its preparation method and application. Background technique [0002] Lamination refers to the processing technology of coating adhesive on the plastic film, and bonding it with paper printed matter after heating and pressing to form a paper-plastic product. The coated printed matter has a smoother and brighter surface due to the addition of a thin and transparent plastic film on the surface, thereby improving the gloss and fastness of the printed matter, and at the same time it can also play waterproof, anti-fouling, wear-resistant, folding-resistant, Resistant to chemical corrosion etc. [0003] The pre-coating film process refers to the plastic film coated with hot melt adhesive on the surface, which is directly used for the lamination process of paper printed matter by hot pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B27/32B32B27/30B32B37/15B32B38/00
CPCB32B27/08B32B27/306B32B27/32B32B37/153B32B38/00B32B2038/0028
Inventor 胡卓荣徐文树
Owner GUANGDONG DECRO FILM NEW MATERIALS
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