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Anti-slip shrink film and preparation method thereof

A shrink film, anti-slip technology, used in flexible coverings, packaging, wrapping paper, etc., can solve the problems of slippage, loss, and low adhesion of contacting objects, and achieve the effect of high coefficient of kinetic friction

Active Publication Date: 2014-05-28
JINWEILONG BRANCH OF GUANGZHOU PLASTICS IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These commonly used LDPE shrink films all have a major defect, that is, the bonding force with the contact object is not strong, and it is easy to cause slippage and loss during transportation after packaging.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] An anti-slip shrink film, which comprises 65% of low-density polyethylene, 22% of high-density polyethylene, 10% of ethylene-vinyl acetate copolymer, 1% of blocking agent, 1% of lubricant, and 1% of antistatic agent by weight percentage. % Put it into the mixer and mix it thoroughly, and then put the mixed material into the extruder to extrude and cool it.

[0021] The density of the above-mentioned low-density polyethylene is 0.91-0.925, and the density of the above-mentioned high-density polyethylene is 0.941-0.965.

[0022] The anti-blocking agent is a mixture of silicon dioxide and polyethylene, the weight ratio of silicon dioxide and polyethylene is 1:8, and the density of the polyethylene is 0.926-0.940.

[0023] The above-mentioned lubricant is a mixture of fluoropolymer processing aid (PPA) and polyethylene, and the weight ratio of the two is 5:90. The above-mentioned fluoropolymer processing aid (PPA) is composed of difluoroethylene and hexafluoro It is prepar...

Embodiment 2

[0027] An anti-slip shrink film, which contains 73% of low-density polyethylene, 17% of high-density polyethylene, 7% of ethylene-vinyl acetate copolymer, 1% of anti-blocking agent, 1% of lubricant, and 1% of antistatic agent by weight percentage. % Put it into the mixer and mix it thoroughly, and then put the mixed material into the extruder to extrude and cool it.

[0028] The density of the above-mentioned low-density polyethylene is 0.91-0.925, and the density of the above-mentioned high-density polyethylene is 0.941-0.965.

[0029] The anti-blocking agent is a mixture of silicon dioxide and polyethylene, the weight ratio of silicon dioxide and polyethylene is 1:9, and the density of the polyethylene is 0.926-0.940.

[0030] The above-mentioned lubricant is a mixture of fluoropolymer processing aid (PPA) and polyethylene, and the weight ratio of the two is 5:110. The above-mentioned fluorine-containing polymer processing aid (PPA) is prepared by the copolymerization react...

Embodiment 3

[0034] An anti-slip shrink film, which comprises 50% low-density polyethylene, 30% high-density polyethylene, 16% ethylene-vinyl acetate copolymer, 1.5% anti-blocking agent, 1.5% lubricant, and 1 antistatic agent by weight percentage. % Put it into the mixer and mix it thoroughly, and then put the mixed material into the extruder to extrude and cool it.

[0035] The density of the above-mentioned low-density polyethylene is 0.91-0.925, and the density of the above-mentioned high-density polyethylene is 0.941-0.965.

[0036] The anti-blocking agent is a mixture of silicon dioxide and polyethylene, the weight ratio of silicon dioxide and polyethylene is 1:9, and the density of the polyethylene is 0.926-0.940.

[0037] The above-mentioned lubricant is a mixture of fluoropolymer processing aid (PPA) and polyethylene, and the weight ratio of the two is 5:100. The above-mentioned fluoropolymer processing aid (PPA) is composed of difluoroethylene and hexafluoro It is prepared by cop...

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Abstract

The invention discloses an anti-slip shrink film and a preparation method thereof. The anti-slip shrink film comprises the following components in mass percent: 50%-73% of low density polyethylene, 17%-30% of high density polyethylene, 7%-16% of ethylene-vinyl acetate copolymer, 1%-1.5% of anti-block agent, 1%-1.5% of lubricating agent, and 1%-1.5% antistatic agent, which are all placed into a mixing mill for mixing fully, then the mixed material is charged into an extruder for extrusion forming, and finally the material is cooled to obtain the anti-slip shrink film. Compared with the prior art, the anti-slip shrink film has higher dynamic friction coefficient, and is detected according to detection method in the national standard GB1006-88; the dynamic friction coefficient Mu is higher than 0.6; the commodity packaged by the anti-slip shrink film can be prevented from being damaged due to slipping during transportation.

Description

technical field [0001] The invention relates to the technical field of packaging materials, in particular to an anti-slip shrink film and a preparation method thereof. Background technique [0002] Shrink films are polymer films that shrink in one or both directions when heat is applied. Shrink film is widely used for large and small products, such as: food, medicine, disinfection tableware, stationery, printed matter, hardware and plastics, telephones, electronic devices and other products, especially in the combination of irregular shapes In terms of packaging. [0003] At present, the most widely used shrink films in the packaging field are mainly heat shrinkable films and stretch stretch films. Most of the existing heat-shrinkable films are formed by mixing low-density polyethylene (LDPE) and other additives. These commonly used LDPE shrink films all have a major defect, that is, the bonding force with the contact object is not strong, and it is easy to cause slipping...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L23/08C08L31/04C08L27/16C08L27/20C08K13/02C08K3/36C08K5/103C08K5/17B65D65/38
Inventor 不公告发明人
Owner JINWEILONG BRANCH OF GUANGZHOU PLASTICS IND
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