BOPE (biaxially-oriented polypropylene) coating composite film

A composite film and coating technology, applied in the field of coating film, can solve the problems of poor wiping resistance, low surface tension (generally no more than 32 dynes, difficult adhesion of UV ink, etc., to achieve the effect of enhanced printability)

Inactive Publication Date: 2014-07-09
HUBEI FIRSTA MATERIALS SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the label industry (coating film is the upper film for making label materials), because the surface of the coating film is non-polar, and the surface tension itself is not high (generally no more than 32 dyne) and drops very fast, so that UV ink can The adhesion of the coating film surface is extremely difficult
The existing coating film has the following disadvantages: the corona value can only reach 38 dynes in one month, the printing performance is poor, and the wiping resistance is poor

Method used

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  • BOPE (biaxially-oriented polypropylene) coating composite film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Such as figure 1 As shown, the BOPE coated composite film includes functional layer 1, core layer 2 and sub-functional layer 3, the core layer is located between the functional layer and the sub-functional layer, and the functional layer, core layer and sub-functional layer are co-extruded It is integrated by two-way stretching; the mass percentages of functional layer, core layer and sub-functional layer are: functional layer 1%, core layer 98%, and sub-functional layer 1%;

[0017] The material of the functional layer is composed of ethyl acetate, C9 hydrogenated petroleum resin (or C9 hydrogenated petroleum resin, hydrogenated C9 petroleum resin), metallocene polyethylene, polyvinyl alcohol, sodium hydroxide, antioxidant, dispersant, each The mass percentage of raw materials is: ethyl acetate 55%, C9 hydrogenated petroleum resin 10%, metallocene polyethylene 18%, polyvinyl alcohol 13%, sodium hydroxide 2%, antioxidant 1%, dispersant 1%;

[0018] The material of the ...

Embodiment 2

[0026] Such as figure 1 As shown, the BOPE coated composite film includes functional layer 1, core layer 2 and sub-functional layer 3, the core layer is located between the functional layer and the sub-functional layer, and the functional layer, core layer and sub-functional layer are co-extruded It is integrated by two-way stretching; the mass percentages of functional layer, core layer and sub-functional layer are: functional layer 8%, core layer 91%, and sub-functional layer 1%;

[0027] The material of the functional layer is composed of ethyl acetate, C9 hydrogenated petroleum resin (or C9 hydrogenated petroleum resin, hydrogenated C9 petroleum resin), metallocene polyethylene, polyvinyl alcohol, sodium hydroxide, antioxidant, dispersant, each The mass percentage of raw materials is: ethyl acetate 55%, C9 hydrogenated petroleum resin 10%, metallocene polyethylene 18%, polyvinyl alcohol 13%, sodium hydroxide 2%, antioxidant 1%, dispersant 1%;

[0028] The material of the ...

Embodiment 3

[0036] Such as figure 1 As shown, the BOPE coated composite film includes functional layer 1, core layer 2 and sub-functional layer 3, the core layer is located between the functional layer and the sub-functional layer, and the functional layer, core layer and sub-functional layer are co-extruded It is integrated by two-way stretching; the mass percentages of functional layer, core layer and sub-functional layer are: functional layer 3%, core layer 92%, and sub-functional layer 5%;

[0037] The material of the functional layer is composed of ethyl acetate, C9 hydrogenated petroleum resin (or C9 hydrogenated petroleum resin, hydrogenated C9 petroleum resin), metallocene polyethylene, polyvinyl alcohol, sodium hydroxide, antioxidant, dispersant, each The mass percentage of raw materials is: ethyl acetate 55%, C9 hydrogenated petroleum resin 10%, metallocene polyethylene 18%, polyvinyl alcohol 13%, sodium hydroxide 2%, antioxidant 1%, dispersant 1%;

[0038] The material of the ...

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Abstract

The invention belongs to the technical field of packaging materials, particularly relates to a coating film and discloses a BOPE (biaxially-oriented polypropylene) coating composite film, which is characterized by comprising a function layer, a core layer and an auxiliary layer. The core layer is positioned between the function layer and the auxiliary function layer, the function layer, the core layer and the auxiliary function layer are integrated by means of biaxially stretching after being in coextrusion, the mass percent of the function layer ranges from 1% to 8%, the mass percent of the core layer ranges from 91% to 98%, the mass percent of the auxiliary function layer ranges from 1% to 5%, raw materials of the function layer include, by mass percent, 55% of acetic ether, 10% of C9 hydrogenated petroleum resin, 18% of metallocene polyethylene, 13% of polyvinyl alcohol, 2% of sodium hydroxide, 1% of antioxidant and 1% of dispersing agent, raw materials of the core layer include, by mass percent, 97.95% of linear polyethylene, 0.05% of nucleating agent and 2% of antioxidant 1076, components of the auxiliary function layer include, by mass percent, from 97 to 98% of metallocene polyethylene, from 1 to 2% of SiO2 and 1% of antioxidant 1076. The BOPE coating composite film has the advantages of fine printing performances and wiping resistance.

Description

technical field [0001] The invention belongs to the technical field of packaging materials, and in particular relates to a coating film. Background technique [0002] Some characteristics of the coating film itself make it widely used in the flexible packaging industry, such as cigarette labels, laser, food packaging and so on. However, in the label industry (coating film is the upper film for making label materials), because the surface of the coating film is non-polar, and the surface tension itself is not high (generally no more than 32 dyne) and drops very fast, so that UV ink can Adhesion to the surface of the coating film was extremely difficult. The existing coating film has the following disadvantages: the corona value can only reach 38 dynes in one month, the printing performance is poor, and the wiping resistance is poor. Contents of the invention [0003] The purpose of the present invention is to provide a BOPE coated composite film with good printing perform...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/08B32B27/18B41M5/00
Inventor 褚峰林江四华朱红卫孙麟
Owner HUBEI FIRSTA MATERIALS SCI & TECH GRP
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