Food packaging film bag and preparation process thereof

A food packaging film and metallocene technology, applied in the field of plastic chemical industry, can solve the problems of incompetence, insufficient physical and mechanical properties of polyethylene blown film bags, etc., and achieve easy operation, good pollution resistance, and excellent physical and mechanical properties Effect

Pending Publication Date: 2020-12-25
SINBOLE PACKAGE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the plastic substrate film of food packaging is usually produced by blow molding with polyethylene raw material, but the polyethylene blown film bag has insufficient oxygen physical and mechanical properties, and it is difficult to meet the current demand.

Method used

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  • Food packaging film bag and preparation process thereof
  • Food packaging film bag and preparation process thereof
  • Food packaging film bag and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Mix the masterbatch according to the formula in Table 1, and number A~E.

[0028] Table 1

[0029]

Embodiment 2～9

[0031] A kind of food packaging film bag, by weight g, raw material comprises: matrix resin and masterbatch, described matrix resin comprises metallocene low-density polyethylene resin and metallocene linear low-density polyethylene resin, and raw material formula sees Table 2.

[0032] A preparation process of the above-mentioned food packaging film bag. The above-mentioned raw materials are plasticized, melted at 160-190°C, extruded, and then cooled by down-blown water cooling to obtain the food packaging film bag.

[0033] Table 2

[0034]

[0035]

Embodiment 8

[0037] The only difference from Embodiment 7 is that the raw materials also include auxiliary agents, and the auxiliary agent formulations are shown in Table 3.

[0038] table 3

[0039]

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PUM

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Abstract

The invention discloses a food packaging film bag which comprises the following raw materials in parts by weight: 45-65 parts of matrix resin and 35-55 parts of master batch; wherein the matrix resinis metallocene low-density polyethylene resin and/or metallocene linear low-density polyethylene resin; the master batch comprises low-density polyethylene, linear low-density polyethylene, an ethylene-vinyl acetate copolymer and metallocene linear polyethylene; the food packaging film bag is excellent in physical and mechanical properties, low in initial heat sealing temperature and high in heatsealing strength.

Description

technical field [0001] The invention relates to the field of plastic chemical industry, in particular to a food packaging film bag and a preparation process thereof. Background technique [0002] In recent years, due to the restriction of technical barriers in foreign trade, my country's export food has been frequently blocked by foreign countries due to packaging quality problems, causing serious economic losses. The safety of food packaging materials is facing severe challenges. As a big country, the requirements for food industry packaging are becoming increasingly stringent. [0003] At present, the plastic substrate film of food packaging is usually produced by blow molding with polyethylene raw material, but the polyethylene blown film bag has insufficient oxygen physical and mechanical properties, and it is difficult to meet the current demand. Contents of the invention [0004] In view of this, the present application provides a food packaging film bag and its prep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08L23/30C08K5/17C08K5/13C08K5/58C08J5/18
CPCC08L23/06C08L23/0815C08J5/18C08L2203/16C08L2205/035C08L2205/025C08L2205/02C08L2207/066C08L2201/08C08L2201/14C08J2323/06C08J2423/06C08J2423/08C08J2323/08C08L23/0853C08L23/30C08K5/17C08K5/13C08K5/58
Inventor 戴国军
Owner SINBOLE PACKAGE IND
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