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Polyethylene embossed packaging film and production process thereof

A polyethylene and packaging film technology, applied in the field of film materials, can solve the problems of general film heat-sealing performance, high film transparency, poor impact strength, etc., achieve good surface corona treatment effect, protect physical structure, and ensure smoothness Effect

Inactive Publication Date: 2018-12-18
HUANGSHAN NOVEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantages of cast embossed film are soft material, poor stiffness effect, poor impact strength, high film transparency, and general film heat sealing performance (not high pressure resistance)

Method used

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  • Polyethylene embossed packaging film and production process thereof
  • Polyethylene embossed packaging film and production process thereof
  • Polyethylene embossed packaging film and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The technical solution of the present invention will be described more specifically below in conjunction with the embodiments.

[0022] The source of raw materials used in the following examples is shown in Table 1 below:

[0023] Table 1

[0024]

[0025] The production process of the polyethylene embossed packaging film of the present invention comprises the following processing steps:

[0026] Step 1, adding the raw material particles of the corona layer, the middle layer and the heat-sealing layer into the extruder to melt and extrude, and obtaining the polyethylene blown film after blowing the film, cooling and shaping, the polyethylene blown film The film thickness is 40 microns.

[0027] The preparation of described polyethylene blown film implements according to the prescription in following table 2 respectively:

[0028] Table 2

[0029] film layer

Example 1

Example 2

Example 3

corona layer

50wt.%L420+50wt.%2045G

48wt....

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Abstract

The invention relates to a polyethylene embossed packaging film and a production process thereof. The polyethylene embossed packaging film is obtained by heating and softening of a polyethylene blownfilm and embossing treatment. The polyethylene blown film comprises a corona layer, an intermediate layer and a heat seal layer. The corona layer comprises 48-52wt.% of low density polyethylene (LDPE)and 48-52wt.% of linear low density polyethylene (LLDPE), the intermediate layer includes linear low density polyethylene (LLDPE), and the heat seal layer comprises 32-36wt.% low density polyethylene(LDPE) and 64-68wt.% linear low density polyethylene (LLDPE). Compared with cast embossed films, the polyethylene embossed packaging film provided by the invention can show good stiffness effect andhaze effect, and has high heat seal strength, impact resistant strength, other excellent physical and mechanical properties, etc.

Description

technical field [0001] The invention belongs to the technical field of film materials, and in particular relates to a polyethylene embossed packaging film and a production process thereof. Background technique [0002] With the improvement of people's quality of life, consumers not only pay attention to the brand effect of products, but also pay more and more attention to the packaging of products when purchasing daily necessities and other products. At present, domestic composite flexible packaging materials are changing with each passing day, and the packaging is becoming more and more exquisite, which attracts more attention from consumers. In order to effectively prevent products from being imitated, many manufacturers and packaging companies have spent a lot of energy on anti-counterfeiting. At present, the embossed films with anti-counterfeiting effects circulated and used in the market are all produced by tape casting. Cast film is a kind of non-stretched, non-direc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/06B32B27/32B65D65/40B29C69/02
CPCB29C69/02B32B27/08B32B27/32B32B2250/242B32B2307/31B32B2307/558B32B2553/00B65D65/40
Inventor 胡忠立汪学文查显宇
Owner HUANGSHAN NOVEL
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