Anti-pollution low-temperature heat-sealing polyethylene film easy to tear off

A polyethylene film and low-density polyethylene technology, applied in the field of polyethylene film, can solve the problems of prolonging the mechanical action time, affecting the effect of heat sealing, and destroying the sealing, so as to shorten the mechanical action time, reduce the production cost, and reduce the sealing effect. low temperature effect

Inactive Publication Date: 2015-01-28
SICHUAN HUILI IND
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

[0002] At present, plastic products have been widely used in the market, among which plastic packaging accounts for an increasing proportion of plastic products, especially in the fields of medicine and chemical industry, and polyethylene film is widely used because of its non-toxicity and safety. Applied to the packaging of medicines, the plastic packaging bags made of ordinary PE film are all completed by large-scale machinery. Due to the characteristics of the existing PE film itself, the packaging bags often have the following disadvantages when sealing: heat sealing temperature High, usually up to 115-125 ° C, and du

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3

[0023] Mix the raw materials shown in the following Table 1 in parts by weight and put them into a film blowing machine to melt and blow the film for molding, wherein the melting temperature is 120-125° C. to obtain a polyethylene film.

[0024] Take the polyethylene film prepared above, make two polyethylene films with a size of 100mm×100mm, heat seal at 90°C-100°C after lamination, and test the peel strength and record it in Table 1. Take one of the polyethylene films with a small amount of powdered medicine attached to it, laminate two polyethylene films of different sizes (the side with the powder attached is sandwiched between the two polyethylene films), heat seal at a temperature of 90°C-100°C , the results show that the two films can still be effectively heat-sealed.

[0025] Table 1

[0026] raw material Example 1 Example 2 Example 3 LDPE 45 - 30 HDPE - 58 35 EVA 15 22 30 Oleamide 2.5 - 5 silica 1 3 - Peel s...

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PUM

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Abstract

The invention discloses an anti-pollution low-temperature heat-sealing polyethylene film easy to tear off. The polyethylene film consists of the following components in part by weight: 45 to 65 parts of polyethylene resin, 15 to 30 parts of EVA (ethylene-vinyl acetate) and 3 to 5 parts of an additive. According to the invention, the polyethylene resin is modified by matching of EVA and the additive; when the prepared polyethylene film is made into a plastic package, a sealing temperature is low, so that the phenomenon of false sealing is effectively avoided; after the plastic package is sealed, the polyethylene film is still easy to tear off, so that the use convenience is improved.

Description

technical field [0001] The invention belongs to the field of packaging films, in particular to an anti-pollution, low-temperature heat-sealable and easy-to-remove polyethylene film. Background technique [0002] At present, plastic products have been widely used in the market, among which plastic packaging accounts for an increasing proportion of plastic products, especially in the fields of medicine and chemical industry, and polyethylene film is widely used because of its non-toxicity and safety. Applied to the packaging of medicines, the plastic packaging bags made of ordinary PE film are all completed by large-scale machinery. Due to the characteristics of the existing PE film itself, the packaging bags often have the following disadvantages when sealing: heat sealing temperature High, usually up to 115-125 ° C, and due to the high temperature, it needs to reach a certain strength, prolong the mechanical action time, and increase the production force virtually; when the ...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/08C08K5/20C08K3/36C08J5/18
CPCC08L23/06C08L2203/16C08L2205/02C08L2205/025C08L2205/03C08L2207/062C08L2207/066
Inventor 柏金枝张辉肖世才
Owner SICHUAN HUILI IND
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