Ultra-thin PE (polyethylene) film for packaging bag

An ultra-thin, packaging bag technology, applied in the field of plastic film, can solve problems such as melt fracture, poor film transparency, affecting product molding and quality, and achieve good heat sealing performance and good anti-aging performance

Inactive Publication Date: 2016-05-04
TIANJIN XINZI SCI & TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology helps prevent damage caused from long exposure to sunlight or other environmental factors that can cause degradation over time on products made with this type of plastic films. It also improves resistance against aging compared to traditional methods for producing these materials due to its thin nature and durability at high temperatures. Additionally, it provides strong adhesion between layers when they are laminated together, resulting in improved mechanical properties such as tension retention and impact absorption capabilities.

Problems solved by technology

This patented describes how current methods for producing flexible packages such as those made from polyethylene terephthalate (PET) have limitations when trying to use thinner layers or higher levels of polymeric resin due to their lack of heat tolerance during manufacturing processes that involve melting down PE onto other components like metal foils. Additionally, these techniques result in irregularities on the surface where they were applied, making them hard to clean up after each usage period. These issues make it challenges to achieve consistently good results over multiple uses cycles without compromising package integrity.

Method used

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  • Ultra-thin PE (polyethylene) film for packaging bag
  • Ultra-thin PE (polyethylene) film for packaging bag
  • Ultra-thin PE (polyethylene) film for packaging bag

Examples

Experimental program
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Effect test

example 1

[0022] An ultra-thin PE film for packaging bags, comprising the following components according to the mass fraction ratio:

[0023]

[0024] The above-mentioned components according to the mass fraction ratio can be produced according to the process: raw material weighing, metering and stirring of various raw materials, feeding, melt extrusion, film shaping and cooling, traction, cutting and coiling, and the ultra-thin film can be produced. Type PE film, experiments show that the ultra-thin PE film can still maintain the same physical and chemical indicators when the thickness is only 80% of the current plastic film thickness, and has better transparency and no linear lines.

example 2

[0026] An ultra-thin PE film for packaging bags, comprising the following components according to the mass fraction ratio:

[0027]

[0028] The above-mentioned components according to the mass fraction ratio can be produced according to the process: raw material weighing, metering and stirring of various raw materials, feeding, melt extrusion, film shaping and cooling, traction, cutting and coiling, and the ultra-thin film can be produced. Type PE film. Experiments show that the ultra-thin PE film can also maintain the same physical and chemical indicators when the thickness is only 80% of the current plastic film thickness, and has better transparency and no linear lines.

example 3

[0030] An ultra-thin PE film for packaging bags, comprising the following components according to the mass fraction ratio:

[0031]

[0032] The above-mentioned components according to the mass fraction ratio can be produced according to the process: raw material weighing, metering and stirring of various raw materials, feeding, melt extrusion, film shaping and cooling, traction, cutting and coiling, and the ultra-thin film can be produced. Type PE film. Experiments show that the ultra-thin PE film can maintain the same physical and chemical indicators when the thickness is only 80% of the current plastic film thickness, and has better transparency, no linear lines, meets the drop test, and has a tensile strength higher than The national standard is 20%, and the shelf life of the film is 6-8 months longer than the current product.

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PUM

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Abstract

The invention relates to an ultra-thin PE (polyethylene) film for a packaging bag. The ultra-thin PE film comprises components in parts by mass as follows: 20-40 parts of EVA (ethylene vinyl acetate) FL0014, 10-30 parts of MLLDPE (metallocene linear low-density polyethylene) 1018 FA, 30-40 parts of linear HDPE (linear high-density polyethylene) 2045Q, 20-35 parts of HDPE LD100AC, 0.5-1.0 part of a slipping agent and 0.2-0.8 parts of an antioxidant. The ultra-thin PE film has the advantages that linear grains in a production process of the film are eliminated, the film has better heat sealing property and ageing resistance, the tensile strength is higher than the national standard by 20%, and the shelf life of the film is prolonged by 6-8 months than the conventional products.

Description

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Claims

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Application Information

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Owner TIANJIN XINZI SCI & TECH DEV CO LTD
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