Heat shrink film

A heat-shrinkable film and base layer technology, applied in the field of packaging materials, can solve the problems of poor material rheology or melt fluidity, difficult to control the sealing anti-pollution ability, and poor heat-sealing properties of materials, etc., to achieve excellent resistance to environmental stress Crack resistance, strong sealing anti-pollution ability, and strong comprehensive performance

Inactive Publication Date: 2013-11-06
KUNSHAN RONGAO WEIJIE TRADE
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

The shrink film must have high puncture resistance, good shrinkage and certain shrinkage stress. During the shrinking process, the film cannot produce holes. The traditional heat shrinkable film is mainly used in different categories, and its comprehensive performance is generally poor, such as PE shrink film has the characteristics of good flexibility, not easy to be damaged, not afraid of moisture, and large shrinkage rate. It is mainly used for the overall packaging of various beverages, cloth and other products. The heat sealability of the material is not good, and it is difficult to control the anti-pollution ability of the seal, so a heat shrinkable film with strong comprehensive performance is needed

Method used

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  • Heat shrink film

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Embodiment Construction

[0011] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0012] A heat-shrinkable film, comprising a base layer 1 and a buffer layer 2, the base layer 1 is a composite material of LLDPE and OPS, the mass ratio of the LLDPE and OPS is 2.5-3.5:1, and the buffer layer 2 is a POF material Compounded with UV anti-ultraviolet agent, LDPE is applied to heat shrinkable film to enhance the properties of tensile resistance, penetration resistance, impact resistance and tear resistance, making LLDPE suitable for film. Its excellent resistance to environmental stress cracking, resistance to Low-temperature impact and warpage resistance make LLDPE attractive for pipe, sheet extrusion and all molding applications. At the same time, it has good heat-sealability, easy processing, and strong anti-pollution ability for se...

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Abstract

The invention discloses a heat shrink film and relates to the field of packing materials. The heat shrink film comprises a base layer and a buffer layer, wherein the base layer is an LLDPE and OPS composite material, the mass ratio of LLDPE to OPS is (2.5-3.5):1, and the buffer layer is formed by composition of a POF material and an anti-UV agent. The heat shrink film is simple in producing technology and high in combination property.

Description

technical field [0001] The invention relates to the field of packaging materials, in particular to a heat shrinkable film. Background technique [0002] Heat shrinkable film is used for sales and transportation of various products, and its main function is to stabilize, cover and protect products. The shrink film must have high puncture resistance, good shrinkage and certain shrinkage stress. During the shrinking process, the film cannot produce holes. The traditional heat shrinkable film is mainly used in different categories, and its comprehensive performance is generally poor, such as PE shrink film has the characteristics of good flexibility, not easy to be damaged, not afraid of moisture, and large shrinkage rate. It is mainly used for the overall packaging of various beverages, cloth and other products. The heat-sealability of the material is not good, and it is difficult to control the anti-pollution ability of the seal, so a heat-shrinkable film with strong comp...

Claims

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Application Information

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IPC IPC(8): B32B27/06B32B27/32B32B27/30B32B27/20C08L23/08C08L25/06B65D65/40
Inventor 徐思伟
Owner KUNSHAN RONGAO WEIJIE TRADE
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