Bidirectional stretching heat-sealing extinction film used for package and manufacturing method thereof

A biaxial stretching and food packaging technology, applied in the field of matting film and its manufacturing, can solve the problems of matting film without heat sealing performance, increase processing procedures and costs, environmental pollution, etc., achieve exquisite matte patterns, and simplify processing procedures , cost reduction effect

Inactive Publication Date: 2008-02-20
DAQING PETROLEUM ADMINISTRATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The matting film is a film made of a single surface layer using a matting masterbatch and biaxially stretched. At present, the base film of the common matting film on the market is three layers, of which the upper and lower layers are matting layers, and the middle layer is the core layer. , these three layers are integrated by hot-melt and co-extrusion. This kind of matte film does not have heat-sealing performance. Compounding increases the processing procedures and costs in the downstream production process, and at the same time, the adhesive used for compounding will pollute the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment one: the used raw and auxiliary materials of heat-sealing layer, core layer, matting layer are by following weight percent:

[0020] Heat seal layer: heat seal masterbatch 98%

[0021] Anti-sticking agent 2%

[0022] Core: Homopolypropylene 98%

[0023] Antistatic agent 2%

[0024] Matting layer: matting masterbatch 100%

[0025] Among them, the isotacticity of homopolypropylene is 96%, and the melt index is 2.8-3.2g / 10min; the antistatic agent is an antistatic masterbatch containing compound polymer amines, and GAS982 can be selected; the heat-sealing masterbatch is ethylene- Propylene copolymer; the matting masterbatch is an ethylene-propylene copolymer containing @vinyl; the anti-sticking agent is a functional masterbatch containing synthetic silica, and ABPP05 brand anti-sticking agent can be selected.

[0026] Mix the above-mentioned raw and auxiliary materials that have been weighed and mix them evenly, and then send the evenly mixed...

Embodiment 2

[0029] Embodiment two: the used raw and auxiliary materials of heat-sealing layer, core layer, matting layer are by following weight percent:

[0030] Heat seal layer: heat seal masterbatch 97%

[0031] Anti-sticking agent 3%

[0032] Core: Homopolypropylene 97%

[0033] Antistatic agent 3%

[0034] Matting layer: matting masterbatch 100%

[0035] Concrete manufacturing method is the same as embodiment one.

Embodiment 3

[0036] Embodiment three: the used raw and auxiliary materials of heat-sealing layer, core layer, matting layer are by following weight percent:

[0037] Heat seal layer: heat seal masterbatch 96%

[0038] Anti-sticking agent 4%

[0039] Core: Homopolypropylene 96%

[0040] Antistatic agent 4%

[0041] Matting layer: matting masterbatch 100%

[0042] The specific manufacturing method is the same as in Embodiment 1.

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Abstract

The present invention relates to a biaxial tension heat-sealing type extinction membrane used for foods packing and a production method, wherein, a basement membrane of the extinction membrane is provided with an upper surface layer, a middle core layer and a lower surface layer which are packed into a whole through heat melt and jostling together. The upper surface layer is an extinction layer and the lower surface layer is a heat-sealing layer. The production method is mainly that the lower surface of the extinction has the heat-sealing performance by changing the materials that the lower surface uses, and the extinction collects the heat-sealing performance and extinction performance as a whole. Taking the basement membrane as food packing membrane is able to simplify the processing procedure of back procedure, reduce the cost in the backward position production process, decrease the pollution to environments, and simultaneously high heat-sealing intensity and fancy flat gloss pictures are provided.

Description

Technical field: [0001] The invention relates to a matting film for the food packaging industry and a manufacturing method thereof, in particular to a biaxially stretchable and directly heat-sealable matting film and a manufacturing method thereof. Background technique: [0002] The matting film is a film made of a single surface layer using a matting masterbatch and biaxially stretched. At present, the base film of the common matting film on the market is three layers, of which the upper and lower layers are matting layers, and the middle layer is the core layer. , these three layers are integrated by hot-melt and co-extrusion. This kind of matte film does not have heat-sealing performance. Compounding increases the processing procedures and costs in the downstream production process, and at the same time, the adhesive used for compounding will pollute the environment. Invention content: [0003] The technical problem to be solved by the present invention is to provide a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D65/40B32B27/06B32B33/00B29C69/00B29C47/06B29C55/12B29C55/14B29C71/00B29K23/00
Inventor 尹廷发叶华
Owner DAQING PETROLEUM ADMINISTRATION
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