Plastic film having light extinction effect, and preparation method thereof

A technology of plastic film and polyethylene, which is applied in the field of plastic film, can solve problems such as reflection, glare, and human discomfort, and achieve the effects of simple preparation method, stable smoothness, and improved effect

Inactive Publication Date: 2015-12-23
广东炜鸿塑料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the existing plastic film, under the light irradiation, will produce the phenomenon of reflection, giving people a dazzling feeling, making the human body feel uncomfortable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5、 comparative example 1-2

[0021] Table 1: Formula table of embodiment 1-5, comparative example 1-2

[0022]

[0023] Wherein, in embodiment 1-2, 5, comparative example 1-2, the density of described LDPE is 0.925g / cm 3 ; The density of the LLDPE is 0.924g / cm 3 ;The density of HDPE is 0.955g / cm 3 ; Example 1, the anti-blocking agent in Comparative Examples 1-2 is a mixture of silicon dioxide and polyethylene according to the mass ratio of 1:8.5; the anti-blocking agent in Example 2 is silicon dioxide and polyethylene according to the mass ratio of 1 : the mixture of 8; The opening agent in embodiment 5 is the mixture that silicon dioxide and polyethylene are 1:7 according to mass ratio.

Embodiment 3

[0024] In Example 3, the density of the LDPE is 0.926g / cm 3 ; The density of the LLDPE is 0.922g / cm 3 ;The density of HDPE is 0.945g / cm 3 ; The opening agent in Example 3 is a mixture of silicon dioxide and polyethylene in a mass ratio of 1:9.

Embodiment 4

[0025] In Example 4, the density of the LDPE is 0.922g / cm 3 ; The density of the LLDPE is 0.926g / cm 3 ;The density of HDPE is 0.965g / cm 3 ; The opening agent in Example 4 is a mixture of silicon dioxide and polyethylene in a mass ratio of 1:10.

[0026] Lubricants in Examples 1-5 and Comparative Examples 1-2 are magnesium stearate.

[0027] In the preparation method of the plastic film with matting effect, the temperature of extrusion molding in the extruder in Examples 1-2, 5 and Comparative Example 1-2 is 180°C. The temperature of the extrusion molding treatment in Example 3 is 130°C; the temperature of the extrusion molding treatment in Example 4 is 190°C.

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Abstract

The present invention relates to a plastic film having a light extinction effect, wherein the plastic film comprises, by weight, 23-35 parts of low density polyethylene, 10-15 parts of high density polyethylene, 48-65 parts of linear low density polyethylene, 1-1.5 parts of an opening agent, and 1-1.5 parts of a lubricant. The present invention further provides a preparation method of the plastic film having the light extinction effect. The plastic film of the present invention has effects of no dazzling under light irradiation, reflection light weakening and the like. In addition, the preparation method of the present invention is simple and easy to operate.

Description

technical field [0001] The invention relates to a plastic film, in particular to a plastic film with matting effect and a preparation method thereof. Background technique [0002] Plastic films, used for packaging, and as laminations. Plastic packaging and plastic packaging products account for an increasing share in the market, especially composite plastic flexible packaging, which has been widely used in food, medicine, chemical and other fields, among which food packaging accounts for the largest proportion, such as beverage packaging , quick-frozen food packaging, cooking food packaging, fast food packaging, etc., these products have brought great convenience to people's lives. But the existing plastic film, under light irradiation, can produce the phenomenon of reflection, gives the feeling of dazzling, makes human body feel uncomfortable. Contents of the invention [0003] The object of the present invention is to provide a plastic film with a matting effect that i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08K3/36C08K5/098
CPCC08L23/0815C08J5/18C08J2323/08C08J2423/06C08L2203/16C08L2205/025C08L2205/035C08L2207/062C08L2207/066C08L23/06C08K3/36C08K5/098
Inventor 彭海松余建光
Owner 广东炜鸿塑料科技有限公司
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