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Moisture-resistant double-drawing polypropylene pearl label base film and preparation method thereof

A double-drawn polypropylene, polypropylene technology, applied in the directions of labels, chemical instruments and methods, flat products, etc., can solve problems such as label collapse, and achieve the effect of good moisture resistance and good moisture resistance.

Active Publication Date: 2022-03-08
GUANGDONG DECRO PACKAGE FILMS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Based on this, the object of the present invention is to provide a moisture-resistant double-stretched polypropylene pearl label base film to improve the moisture-resistant performance of the film and improve the above-mentioned label "collapse" during processing or shelf life when the film is used as a label substrate problem, which is conducive to improving the use effect and the aesthetics of the product

Method used

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  • Moisture-resistant double-drawing polypropylene pearl label base film and preparation method thereof
  • Moisture-resistant double-drawing polypropylene pearl label base film and preparation method thereof
  • Moisture-resistant double-drawing polypropylene pearl label base film and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0046] The moisture-resistant double-drawn polypropylene pearl label base film of the present embodiment and its preparation method are as follows:

[0047] The moisture-proof double-drawing polypropylene pearl label base film of the present embodiment is as follows: figure 1 shown.

[0048] (1) Prepare raw materials:

[0049] The first surface layer 1: get 75wt% through twin-screw blending process and the resin of granulation (the resin comprises high-density polyethylene, ethylene propylene butene terpolymer, high density polyethylene, ethylene propylene butene terpolymer The weight ratio of the product is 45:55, wherein the melt index of HDPE is 0.03g / 10min, the MFR of ethylene propylene butene copolymer is 7g / 10min), 25wt% ethylene norbornene copolymer (Nippon Polyplastics 8007F, Tg 78℃, MVR is 1cm 3 / 10min) and mix evenly to obtain the first surface layer 1 resin.

[0050] Core layer 2: take 86.5wt% L5D98C polypropylene resin (manufacturer is China National Petroleum ...

Embodiment 2

[0055] The moisture-resistant double-drawn polypropylene pearl label base film of the present embodiment and its preparation method are as follows:

[0056] The moisture-proof double-drawing polypropylene pearl label base film of the present embodiment is as follows: figure 1 shown.

[0057] (1) Prepare raw materials:

[0058] The first surface layer 1, the second surface layer 3: take 70wt% respectively through the twin-screw blending processing and granulated resin (the resin includes high-density polyethylene, ethylene propylene butene terpolymer, high-density polyethylene, ethylene Propylene butene terpolymer wherein the weight ratio is 45:55, wherein the melt index of HDPE is 0.03g / 10min, the MFR of ethylene propylene butene copolymer is 7g / 10min), 30wt% ethylene norbornene copolymer ( Polyplastics 9056F, Tg is 65°C, MVR is 1cm 3 / 10min), and mix evenly to obtain the first surface layer 1 and the second surface layer 3 resins with the same formulation.

[0059] Core l...

Embodiment 3

[0063] The moisture-resistant double-drawn polypropylene pearl label base film of the present embodiment and its preparation method are as follows:

[0064] The moisture-proof double-drawing polypropylene pearl label base film of the present embodiment is as follows: image 3 shown.

[0065] (1) Prepare raw materials:

[0066] The first surface layer 1: take 65wt% of the resin (the resin includes high-density polyethylene, ethylene propylene butene terpolymer, high density polyethylene, ethylene propylene butene terpolymer) through twin-screw blending and granulation The weight ratio of the product is 45:55, wherein the melt index of HDPE is 0.03g / 10min, the MFR of ethylene propylene butene copolymer is 7g / 10min), 35wt% of the ethylene norbornene copolymer (Baoli Japan 8007F , Tg is 78℃, MVR is 1cm 3 / 10min), and mix evenly to obtain the first surface layer 1 resin.

[0067] Core layer 2: take 78.5wt% L5D98C polypropylene resin (the manufacturer is China National Petroleum C...

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Abstract

The invention relates to a moisture-resistant double-drawing polypropylene pearl label base film and a preparation method thereof. The moisture-resistant double-drawing polypropylene pearl label base film is characterized by comprising a first surface layer, a core layer and a second surface layer which are arranged in sequence, the first surface layer comprises an ethylene norbornene copolymer; the core layer comprises hydrogenated petroleum resin, and the softening point Ts of the hydrogenated petroleum resin is greater than or equal to 135 DEG C. The invention also provides a preparation method of the moisture-resistant double-drawing polypropylene pearl label base film. The moisture-resistant double-drawing polypropylene pearl label base film disclosed by the invention has excellent moisture-resistant performance, does not influence the pearl effect and stiffness of a film, is beneficial to printing and labeling of a film base material, is beneficial to improving the quality of a water bottle or a bottled beverage product, and is beneficial to prolonging the shelf life of a commodity.

Description

technical field [0001] The invention relates to the technical field of films, in particular to a moisture-resistant double-drawn polypropylene pearl label base film and a preparation method thereof. Background technique [0002] White opaque BOPP pearl film has a satin-like texture, soft and pleasing pearl luster, low density, excellent flatness, and gas barrier properties. It can be widely used in direct packaging of dried fruits, ice cream, candy, high-end soap, gifts, etc. The most representative of these is the organic cavitation pearl film, which has high stiffness at relatively low density. Generally, the BOPP pearl film of the co-extruded composite biaxially stretched structure includes but is not limited to three layers, including the first surface layer, the middle layer (core layer) and the second surface layer, preferably a five-layer co-extruded double-stretched structure. Its pearl effect comes from the mother-of-pearl material added in the middle layer or in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/32B32B27/18B32B27/08B32B27/06B32B27/22B32B27/20C08L23/08C08L23/06C08L23/12C08L57/02C08L67/02B29D7/01G09F3/02
CPCB32B27/32B32B27/18B32B27/08B32B27/22B32B27/205C08L23/0815C08L23/12B29D7/01G09F3/02C08L2207/062B32B2307/7246B32B2519/00C08L23/06C08L57/02C08L67/02
Inventor 徐文树何文俊邹晓明梁杰兴乔胜琦梁啟骞
Owner GUANGDONG DECRO PACKAGE FILMS
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