Three-layer co-extrusion ultra-low temperature heat-sealing package thin film

A low-temperature heat-sealing and three-layer co-extrusion technology, applied in packaging, wrapping paper, household packaging, etc., can solve the problems of low friction coefficient, high composite fastness, and difficult to reduce, and achieve good softness, improved quality, Increased effect of heat-sealed windows

Active Publication Date: 2019-04-12
HENAN YINFENG PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has the characteristics of flexibility, low-temperature sealing, low-temperature impact resistance, and transparency. The heat-sealing temperature is also reduced by 3-5°C. However, its heat-sealing temperature is only about 110°C, and it is difficult to reduce it to about 85°C. ; CN201810097733.X reported ultra-low temperature high-speed environmental protection food packaging film, which is made of polypropylene, has low friction coefficient, high composite fastness, good heat sealing under high-speed packaging, and improves customer packaging speed. The sealing temperature is also around 100°C, it is difficult to continue to drop

Method used

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  • Three-layer co-extrusion ultra-low temperature heat-sealing package thin film
  • Three-layer co-extrusion ultra-low temperature heat-sealing package thin film
  • Three-layer co-extrusion ultra-low temperature heat-sealing package thin film

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Experimental program
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Effect test

Embodiment 1

[0031] Raw material formula of the present invention is as follows: each component is by weight percentage,

[0032] inner layer:

[0033] Yamba linear polyethylene material 20%, metallocene linear material imported from Japan 55%, low density polyethylene material 19.5%, opening smooth agent: 2.5%, PPA masterbatch 3%.

[0034] Middle:

[0035] 38% metallocene linear material imported from Japan, 15% low-density polyethylene material, 44.5% domestic linear polyethylene material, and 2.5% PPA masterbatch.

[0036] Outer layer:

[0037] Yamba linear polyethylene material is 54%, metallocene linear material imported from the United States is 25%, low-density polyethylene material is 18%, and PPA masterbatch is 3%.

[0038] The Yamba linear polyethylene material is Yamba 7050H, the metallocene linear material imported from Japan is Japan KF360T, the low-density polyethylene material is China Shipping Shell 2420D, the domestic linear polyethylene is Lanzhou Petrochemical 7042, a...

Embodiment 2

[0041] Raw material formula of the present invention is as follows: each component is by weight percentage,

[0042] 15% Yamba linear polyethylene material, 65% metallocene linear material imported from Japan, 15% low-density polyethylene material, 2% opening smoothing agent, 3% PPA masterbatch.

[0043] Middle:

[0044] 38% metallocene linear material imported from Japan, 20% low-density polyethylene material, 40% domestic linear polyethylene material, and 2% PPA masterbatch.

[0045] Outer layer:

[0046] Yamba linear polyethylene material is 45%, metallocene linear material imported from the United States is 30%, low-density polyethylene material is 22%, and PPA masterbatch is 3%.

[0047] The Yamba linear polyethylene material is Yamba 7050H, the metallocene linear material imported from Japan is Japan KF360T, the low-density polyethylene material is China Shipping Shell 2420D, the domestic linear polyethylene is Lanzhou Petrochemical 7042, and the metallocene linear pol...

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Abstract

The invention discloses a three-layer co-extrusion ultra-low temperature heat-sealing package thin film, and belongs to the field of package films. America imported metallocene is added into an outerlayer, Japanese imported metallocene is added into a middle layer and an inner layer, the outer layer, the middle layer and the inner layer are different in formula and uniformly mixed according to formulas, three-layer thin film extrusion is formed through a co-extrusion die head, and finally the three-layer co-extrusion ultra-low temperature heat-sealing package thin film is prepared. Compared with a common package thin film, the three-layer co-extrusion ultra-low temperature heat-sealing package thin film has improved transparency and strength, and is quite low in heat sealing temperature and quite suitable for high-speed low-temperature package, wherein the heat sealing temperature can reach 80 DEG C or below to the minimum degree.

Description

technical field [0001] The invention relates to a three-layer co-extruded ultra-low temperature heat-sealable packaging film and its preparation process, in particular to the preparation of a three-layer co-extruded ultra-low temperature heat-sealable packaging film using high-grade imported olefin raw materials and other additives as raw materials, belonging to the field of packaging films . Background technique [0002] Packaging film is a large type of film used for packaging food, pharmaceuticals, daily necessities, etc. Packaging film can prolong the storage time of food, especially the current vacuum-packed food can be stored for more than half a year; it is also very convenient for food transportation. People's lives are more convenient. [0003] Low-temperature heat-sealable packaging film has a lower heat-sealing temperature of 15-45°C than ordinary films, which can significantly reduce the heat-sealing temperature during bag making, significantly reduce energy con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/32B32B27/06B32B27/18B65D65/40B29C48/18B29C48/49C08L23/08C08L23/06
CPCB32B27/08B32B27/18B32B27/32B32B27/327B32B2307/31B32B2307/54B32B2439/00B65D65/40C08L23/0815C08L2203/16C08L2205/025C08L2207/066C08L23/06
Inventor 李永勃孙美菊孙爱亲豆开畅陈振富王耀正王勇
Owner HENAN YINFENG PLASTIC
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