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PE colorful heat-shrinkable film and preparation method thereof

A heat-shrinkable film and colorful technology, applied in the field of packaging materials, to achieve the effects of good surface gloss, easy operation, and improved thermoforming performance

Active Publication Date: 2020-02-28
ZHEJIANG BILI PACKAGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention application provides the advantages of good air permeability, heat sealability, impact resistance and tear resistance, but it still does not solve the above problems

Method used

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  • PE colorful heat-shrinkable film and preparation method thereof
  • PE colorful heat-shrinkable film and preparation method thereof
  • PE colorful heat-shrinkable film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This embodiment provides a PE colorful heat-shrinkable film, which includes 40 parts by mass of low-density polyethylene, 30 parts of metallocene polyethylene, 10 parts of high-density polyethylene, and 8 parts of colorful synthetic polyethylene. Vinyl, 1 part antioxidant, 1 part heat stabilizer, 1 part UV blocker, and 1 part antiblocking agent.

[0035] Wherein, the colorful synthetic polyethylene is formed by mixing polyethylene resin and toner, and the mass ratio of the polyethylene resin to toner is 1:0.02; the melt flow rate of the low-density polyethylene is 0.2g / 10min , the density is 0.920g / cm 3 low-density polyethylene; the high-density polyethylene is selected as a melt flow rate of 0.5g / 10min, a density of 0.950g / cm 3 Antioxidant is PS-802 antioxidant; Heat stabilizer can be selected commercially available product, such as organotin stabilizer; Ultraviolet blocking agent can be selected commercially available product, such as polyvinyl alcohol.

[0036] PS-...

Embodiment 2

[0049]This embodiment provides a PE colorful heat-shrinkable film, including 30 parts by mass of low-density polyethylene, 40 parts of metallocene polyethylene, 15 parts of high-density polyethylene, 12 parts of colorful synthetic polyethylene Vinyl, 3 parts of antioxidant, 3 parts of heat stabilizer, 3 parts of UV blocker and 3 parts of antiblocking agent.

[0050] Wherein, the colorful synthetic polyethylene is formed by mixing polyethylene resin and toner, and the mass ratio of the polyethylene resin to toner is 1:0.2; the melt flow rate of the low-density polyethylene is 0.3g / 10min , the density is 0.940g / cm 3 low-density polyethylene; the high-density polyethylene is selected as a melt flow rate of 0.8g / 10min, a density of 0.970g / cm 3 high-density polyethylene; antioxidant is antioxidant 1010; heat stabilizer can be selected commercially available products, such as organotin stabilizer; ultraviolet blocking agent can be selected commercially available products, such as p...

Embodiment 3

[0053] This embodiment provides a PE colorful heat shrinkable film, including 35 parts by mass of low-density polyethylene, 35 parts of metallocene polyethylene, 12 parts of high-density polyethylene, 10 parts of colorful synthetic polyethylene Vinyl, 2 parts antioxidant, 2 parts heat stabilizer, 2 parts UV blocker and 2 parts antiblocking agent.

[0054] Wherein, the colorful synthetic polyethylene is formed by mixing polyethylene resin and toner, and the mass ratio of the polyethylene resin to toner is 1:0.1; the melt flow rate of the low-density polyethylene is 0.25g / 10min , the density is 0.930g / cm 3 low-density polyethylene; the high-density polyethylene selected melt flow rate is 0.6g / 10min, density is 0.960g / cm 3 Antioxidant is PS-802 antioxidant; Heat stabilizer can be selected commercially available product, such as organotin stabilizer; Ultraviolet blocking agent can be selected commercially available product, such as polyvinyl alcohol.

[0055] Anti-blocking agent...

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Abstract

The invention belongs to the technical field of packaging materials, and particularly relates to a PE colorful heat-shrinkable film and a preparation method thereof. The PE colorful heat-shrinkable film comprises low-density polyethylene, metallocene polyethylene, high-density polyethylene, colorful synthetic polyethylene, an antioxidant, a heat stabilizer, an ultraviolet blocking agent and an anti-blocking agent. According to the heat-shrinkable film provided by the invention, the anti-blocking agent is used, so a packaging bag prepared from the heat-shrinkable film is not prone to adhesion and has good opening ability; and the high-density polyethylene and low-density polyethylene with a low melt index are added the low-density polyethylene for modification, so the obtained heat-shrinkable film is good in transparency and surface gloss, and greatly improved in mechanical properties.

Description

technical field [0001] The invention belongs to the technical field of packaging materials, in particular to a PE colorful heat-shrinkable film and a preparation method thereof. Background technique [0002] With the continuous development of my country's economy, the demand for heat-shrinkable films in the packaging industry is increasing, and the scope of application is also expanding. Because heat-shrinkable films not only have excellent mechanical properties, novel appearance, packaging, storage, transportation, moisture-proof and appearance, etc. Good comprehensive performance, easy recycling and recycling of raw materials, meet the requirements of environmental protection, and improve the packaging efficiency on the automatic packaging line, reduce the overall packaging cost, and are gradually replacing traditional packaging as the first choice for bulk packaging. Openness is an indicator that is often mentioned in the composite flexible packaging industry. Openness re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K5/20C08J5/18
CPCC08J5/18C08J2323/06C08J2423/06C08K5/20
Inventor 李俊强
Owner ZHEJIANG BILI PACKAGING
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