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A kind of transparent PE label film and production method thereof

A production method and label technology, applied in the field of film materials, can solve the problems of PE label film stiffness, poor yellowing resistance, difficulty in meeting printing and use requirements, etc., meet printing and use requirements, reduce film crystal points and The generation of burnt matter and the effect of improving optical properties

Active Publication Date: 2021-05-04
永新股份(黄山)包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing PE label film has poor performance in terms of crystal point, surface precipitation, stiffness, yellowing resistance, etc., and it is difficult to meet the printing and use requirements

Method used

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  • A kind of transparent PE label film and production method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The production method of described transparent PE label film is as follows:

[0036] In step 1, the raw materials of the outer film layer, the middle film layer and the inner film layer are subjected to dust removal treatment.

[0037] Step 2, put the raw materials of the outer film layer, middle film layer and inner film layer into the corresponding suction area of ​​the multi-layer co-extrusion film blowing machine according to the above-mentioned component ratio requirements, and transport them to the hopper of the extruder under vacuum negative pressure, through The corresponding barrel of the extruder is plasticized into a melt, and when the melt is extruded by the extruder, it is filtered through a filter to reach the die head; the outer film layer and the inner film layer respectively include 69.5wt% LDPE, 30wt% cast grade HDPE with 0.5wt% PPA, and the intermediate film layer includes 45wt% blown film grade HDPE, 54.5wt% LDPE and 0.5wt% PPA.

[0038] The barrel ...

Embodiment 2

[0049] The production method of described transparent PE label film is as follows:

[0050] In step 1, the raw materials of the outer film layer, the middle film layer and the inner film layer are subjected to dust removal treatment.

[0051] Step 2, put the raw materials of the outer film layer, middle film layer and inner film layer into the corresponding suction area of ​​the multi-layer co-extrusion film blowing machine according to the above-mentioned component ratio requirements, and transport them to the hopper of the extruder under vacuum negative pressure, through The corresponding barrel of the extruder is plasticized into a melt, and when the melt is extruded by the extruder, it is filtered through a filter to reach the die head; the outer film layer and the inner film layer respectively include 68.5wt% LDPE, 31wt% cast Grade HDPE and 0.5wt% PPA, the intermediate film layer includes 46wt% blown film grade HDPE, 53.5wt% LDPE and 0.5wt% PPA. The extrusion temperature...

Embodiment 3

[0059] The production method of described transparent PE label film is as follows:

[0060] In step 1, the raw materials of the outer film layer, the middle film layer and the inner film layer are subjected to dust removal treatment.

[0061] Step 2, put the raw materials of the outer film layer, middle film layer and inner film layer into the corresponding suction area of ​​the multi-layer co-extrusion film blowing machine according to the above-mentioned component ratio requirements, and transport them to the hopper of the extruder under vacuum negative pressure, through The corresponding barrel of the extruder is plasticized into a melt, and when the melt is extruded by the extruder, it is filtered through a filter to reach the die head; the outer film layer and the inner film layer respectively include 70.5wt% LDPE, 29wt% cast Grade HDPE and 0.5wt% PPA, the intermediate film layer includes 44wt% blown film grade HDPE, 55.5wt% LDPE and 0.5wt% PPA. The extrusion temperature...

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Abstract

The invention relates to a transparent PE label film. The transparent PE label film includes an outer film layer, an intermediate film layer and an inner film layer, and the outer film layer and the inner film layer respectively include 68.5-70.5wt% LDPE, 29-31wt% casting grade HDPE and 0.2-0.8wt% PPA , The intermediate film layer includes 44-46wt% blown film grade HDPE, 53.5-55.5wt% LDPE and 0.2-0.8wt% PPA. In addition, the present invention also provides a production method of the transparent PE label film. The transparent PE label film of the present invention has the characteristics of low crystal point, no surface precipitation, high stiffness and yellowing resistance, and meets printing and use requirements.

Description

technical field [0001] The invention belongs to the technical field of film materials, and in particular relates to a transparent PE label film and a production method thereof. Background technique [0002] In recent years, with the rapid development of my country's economy, especially the rapid development of industries such as food, daily chemicals, detergents, medicine, cosmetics, home appliances, supermarkets, and logistics, my country's label printing industry has made great progress, which in turn has driven label printing. Printing equipment companies and label material manufacturers have also developed accordingly. A relatively complete label printing industry chain has been formed in our country. With the growth of consumption capacity, the types of labels on the market are constantly enriched, and the development and upgrading of technology will bring new market space and business opportunities to the label printing industry. The existing PE label film has poor pe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09F3/02B32B27/32B32B27/06B32B27/18B32B33/00B29C48/21B29C69/00
CPCB29C69/00B32B27/08B32B27/18B32B27/32B32B33/00B32B2307/50G09F3/02G09F2003/0257
Inventor 汪飞胡鸿波汪云辉徐舟
Owner 永新股份(黄山)包装有限公司