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High-strength puncture-resistant auto-adhesive protective film

A self-adhesive protective film and puncture-resistant technology, which is applied in the field of plastic packaging, can solve problems such as performance defects, and achieve the effects of good compatibility, good compatibility, puncture resistance, and optical transparency

Active Publication Date: 2017-04-05
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the packaging films on the market are often unable to meet the wider application requirements due to some performance defects. The preparation of packaging films with good comprehensive properties is an urgent need of the modern packaging industry.

Method used

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  • High-strength puncture-resistant auto-adhesive protective film
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  • High-strength puncture-resistant auto-adhesive protective film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6

[0021] See Table 1 and Table 2 for the raw material composition and properties of Examples 1-6.

Embodiment 1-5

[0023] The raw material composition and properties of Comparative Examples 1-5 are shown in Table 3 and Table 4 respectively.

[0024] Wherein the melt mass flow rate of the mLLDPE used in Examples 1-3 and Comparative Examples 1-5 is 2.5g / 10min, and the density is 0.925g / cm 3 , Molecular weight distribution Mw / Mn between 5-6. The melt mass flow rate of the mLLDPE used in Examples 4-6 is 28g / 10min, and the density is 0.925g / cm 3 , Molecular weight distribution Mw / Mn between 2-3.

[0025] Table 1 embodiment 1-3 raw material composition and performance

[0026]

[0027] Table 2 embodiment 4-6 raw material composition and performance

[0028]

[0029]

[0030] Table 3 comparative example 1-3 raw material composition and performance

[0031]

[0032]

[0033] Table 4 comparative example 4-5 raw material composition and performance

[0034]

[0035] It can be seen from Comparative Example 1 and Comparative Example 4 that when the self-adhesive layer formulatio...

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Abstract

The invention belongs to the technical field of plastic package, in particular to a high-strength puncture-resistant auto-adhesive protective film. The high-strength puncture-resistant auto-adhesive protective film is prepared through three layers of coextrusion blow molds , the inner layer is obtained by mixing mLLDPE and EVA, the middle layer is obtained by mixing the mLLDPE and LLDPE, and the outer layer is obtained by mixing random anti-shock co-polypropylene and the LLDPE. The high-strength puncture-resistant auto-adhesive protective film is obtained by screening, preparing and coextrusion blow molding of three layers of raw materials, all layers have good consistency and a high caking property, and the obtained thin film is high in auto-adhesive performance, strength and puncture resistant and has excellent optical transparence. The high-strength puncture-resistant auto-adhesive protective film meets the packaging requirements of frozen fishes and shrimps, spike ices, sharp objects and the like owing to high strength and puncture resistance, the high-strength puncture-resistant auto-adhesive protective film can be widely used in the fields of normal temperature foods, frozen foods, electric equipment products, home furnishing, building materials, medicine, chemical engineering and the like.

Description

technical field [0001] The invention belongs to the technical field of plastic packaging, in particular to a high-strength puncture-resistant self-adhesive protective film. Background technique [0002] Plastic packaging film products are widely used in home furnishing, building materials, food, medicine, chemical industry and other fields. They are used for packaging, storage and transportation of various products, and can play a good protective role. Self-adhesive film is widely used because it can reduce the use of adhesives, reduce the labor and process of packaging, reduce the possible pollution of adhesives to products, and facilitate the removal of packaging films. The wide range of packaging products in the modern packaging industry has higher and higher requirements for packaging films, and higher requirements are put forward for the comprehensive properties of film products such as self-adhesiveness, strength, toughness, puncture resistance, hygiene, good appearanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B27/32B32B27/30B32B33/00
CPCB32B27/08B32B27/30B32B27/32B32B33/00B32B2307/412B32B2307/558
Inventor 李丽李延亮唐岩陈智能苑东兴裴小静明月陈华赉黄峰王晓蕾
Owner CHINA PETROLEUM & CHEM CORP
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