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High-barrier multilayer co-extrusion plastic film

A multi-layer co-extrusion, plastic film technology, applied in the field of plastic film, to achieve the effect of improving barrier properties and good tensile properties

Inactive Publication Date: 2014-01-22
JIANGSU HAODA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In recent years, with the improvement of environmental protection awareness, many countries have banned or restricted the use of toxic packaging products. Although there are no clear laws and regulations in China to prohibit or restrict the use of toxic packaging materials, guided and regulated by the international market, many domestic The company has stopped the use of toxic plastic flexible packaging materials and switched to high-grade environmentally friendly heat shrinkable film materials

Method used

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  • High-barrier multilayer co-extrusion plastic film

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Embodiment Construction

[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0014] see figure 1 , a high-barrier multilayer co-extruded plastic film, comprising: an outer seal layer 1, a barrier layer 2, a TPU film layer 3, a protective layer 4 and an adhesive layer, the outer seal layer 1, the TPU film layer 2 and the barrier layer 3 are arranged in sequence from top to bottom and are connected by an adhesive layer. The protective layer 4 is respectively arranged on the outer sealing layer 1 and the barrier layer 2 and connected by an adhesive layer.

[0015] In addition, the TPU film laye...

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Abstract

The invention discloses a high-barrier multilayer co-extrusion plastic film which comprises a covering layer, a barrier layer, a TPU (thermoplastic polyurethane) film layer, protective layers and bonding layers, wherein the covering layer, TPU film layer and barrier layer are sequentially arranged from top to bottom, and every two layers are connected through one bonding layer; the protective layers are respectively arranged on the covering layer and the barrier layer, and connected through the bonding layers. The high-barrier multilayer co-extrusion plastic film can enhance the barrier property, and has the advantages of higher stretching resistance, wear resistance and high firmness.

Description

technical field [0001] The invention relates to the field of plastic films, in particular to a high-barrier multilayer co-extruded plastic film. Background technique [0002] Commodity packaging plays an important role in the storage, quality assurance and beautification of commodities. Shrink film has a good display effect, trademarks, icons, and packaged objects are clearly visible, beautiful and tidy, shrinks tightly and brightly, and also has excellent toughness and stiffness. It can provide excellent packaging integrity during transportation and loading and unloading. The shrinkage tension generated by its high shrinkage rate can tightly wrap a group of items to be packaged, which is very suitable for the collective packaging of multiple items, especially for the packaging of special-shaped items. In the early stage of the market, due to the high price of heat shrinkable film, the market capacity is not very large except for domestic enterprises with high packaging req...

Claims

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Application Information

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IPC IPC(8): B32B27/08B32B7/12
Inventor 沈敬栋
Owner JIANGSU HAODA