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Polyethylene film resistant to high-temperature steaming and production process of polyethylene film

A polyethylene film and production process technology, applied in the packaging field, can solve the problems of low heat-sealing strength, high energy consumption, and high heat-sealing temperature of CPP film, and achieve broad market application prospects, excellent optical properties, and wide heat-sealing window Effect

Active Publication Date: 2017-10-24
永新股份(黄山)包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, CPP film with strong rigidity has low heat sealing strength, high heat sealing temperature (more energy consumption during packaging), poor toughness, and easy to break the package in low temperature storage environment.

Method used

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  • Polyethylene film resistant to high-temperature steaming and production process of polyethylene film
  • Polyethylene film resistant to high-temperature steaming and production process of polyethylene film
  • Polyethylene film resistant to high-temperature steaming and production process of polyethylene film

Examples

Experimental program
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Effect test

Embodiment 1-5

[0049] The raw material composition and formula of the polyethylene film of Examples 1-5 are shown in Table 1.

[0050] M3410EP and M4707EP are medium and high-density metallocene PE produced by TOTAL, 10090-K is the smooth agent with color matching, and AB-20LD is the anti-blocking agent of Beijing Yalun.

[0051] Table 1

[0052]

[0053] Wherein the thickness ratio is the thickness ratio of the corona layer, the intermediate layer and the heat-sealing layer.

[0054] figure 1 It is a flow chart of the production process of the polyethylene film of the present invention. The polyethylene film of the present invention is made of PE film through a film blowing process from PE particles.

[0055] The specific production process is as follows:

[0056] Co-extruding the raw materials of the corona layer, the middle layer and the heat-sealing layer to obtain a hot-melt drum film comprising the corona layer, the middle layer and the heat-sealing layer in sequential contact; ...

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Abstract

The invention provides a polyethylene film resistant to high-temperature steaming and a production process of the polyethylene film. The polyethylene film comprises a corona layer, a middle layer and a heat sealing layer, wherein raw materials of the corona layer, the middle layer and the heat sealing layer comprise metallocene medium-density polyethylene and metallocene high-density polyethylene independently; the difference between the vicat softening point and the melting point of each of metallocene medium-density polyethylene and metallocene high-density polyethylene does not exceed 10 DEG C. The polyethylene film has high mechanical strength, excellent optical performance, low-temperature freezing performance, high heat-sealing strength, high thermo-viscous force, a wide heat-sealing window, low odor, resistance to steaming for 30 min at the temperature of 121 DEG C and other excellent performance and can be used as an inner material of a composite film resistant to high-temperature steaming.

Description

technical field [0001] The invention belongs to the field of packaging, and in particular relates to a high-temperature-resistant cooking polyethylene film and a production process thereof. Background technique [0002] In recent years, with the improvement of people's living standards, food has become increasingly diversified, hygienic, convenient and high-end, and composite film flexible packaging has gradually occupied an important position. High temperature resistant retort food packaging bags, as a kind of film flexible packaging, are generally used for the storage of food at room temperature, and are often used in the packaging of meat, soybean products and other foods. store. Retort-resistant packaged food is easy to carry, ready to eat after opening the bag, hygienic and convenient, and can well maintain the flavor of the food, so it is deeply loved by consumers. [0003] High temperature resistant retort food is heat sterilization after packaging the food together...

Claims

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Application Information

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IPC IPC(8): B32B27/32B32B27/06B32B37/15B32B38/00
CPCB32B27/08B32B27/327B32B37/153B32B38/0008B32B38/0012B32B2038/0028B32B2307/306B32B2307/31B32B2439/70
Inventor 潘健高淼汪飞胡鸿波
Owner 永新股份(黄山)包装有限公司
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