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Extinction casting PE film and production process thereof

A casting and matting technology, applied in the field of film materials, can solve the problems of uneven thickness of matting PE blown film, easy stretching and extension under force, poor color registration accuracy, etc., and achieve excellent matting effect, high surface tension, and improved processing performance effect

Active Publication Date: 2019-10-08
HUANGSHAN NOVEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The matte PE blown film that is common in the market has uneven thickness, and is easy to be stretched and elongated under force. During gravure multi-color printing, due to the long printing channel and high tension, the color registration accuracy is poor, and it is easy to run off when the printing speed is fast.

Method used

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  • Extinction casting PE film and production process thereof
  • Extinction casting PE film and production process thereof
  • Extinction casting PE film and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Step 1, high-temperature plasticization: add the resins and additives of the heat-sealing layer, the intermediate layer and the corona layer into the corresponding hoppers respectively, and enter each section of the German Reifen machine extruder through the automatic feeding system, and then place the Plasticized into melt at high temperature;

[0030] The heat-sealing layer includes a mass ratio of 25:25:35:0.5:0.4:0.3 for cast PE matting masterbatch, PP elastomer, PP ternary coating resin, opening masterbatch, slip agent and processing aid. The intermediate layer includes cast linear PE resin, high-density polyethylene and processing aids in a mass ratio of 25:50:0.3; the corona layer is all cast linear PE resin.

[0031] The temperature settings of the German Reifen casting machine are as follows:

[0032]

[0033] Step 2, extrusion: through the action of the driving force generated by the thread when the extruder screw rotates, the molten material is extruded f...

Embodiment 2

[0047] Step 1, high-temperature plasticization: add the resins and additives of the heat-sealing layer, the intermediate layer and the corona layer into the corresponding hoppers respectively, and enter each section of the German Reifen machine extruder through the automatic feeding system, and then place the Plasticized into melt at high temperature;

[0048] The heat-sealing layer includes a mass ratio of 24:24:33:0.4:0.3:0.2 for cast PE matting masterbatch, PP elastomer, PP ternary coating resin, opening masterbatch, slip agent and processing aid. The intermediate layer includes cast linear PE resin, high-density polyethylene and processing aids in a mass ratio of 24:48:0.2; the corona layer is all cast linear PE resin.

[0049] The temperature settings of the German Reifen casting machine are as follows:

[0050]

[0051] Step 2, extrusion: through the action of the driving force generated by the thread when the extruder screw rotates, the molten material is extruded f...

Embodiment 3

[0062] Step 1, high-temperature plasticization: add the resins and additives of the heat-sealing layer, the intermediate layer and the corona layer into the corresponding hoppers respectively, and enter each section of the German Reifen machine extruder through the automatic feeding system, and then place the Plasticized into melt at high temperature;

[0063] The heat-sealing layer includes a mass ratio of 26:26:37:0.6:0.5:0.4 for cast PE matting masterbatch, PP elastomer, PP ternary coating resin, opening masterbatch, slip agent and processing aid. The intermediate layer includes cast linear PE resin, high-density polyethylene and processing aids in a mass ratio of 26:52:0.4; the corona layer includes cast linear PE resin.

[0064] The temperature settings of the German Reifen casting machine are as follows:

[0065]

[0066] Step 2, extrusion: through the action of the driving force generated by the thread when the extruder screw rotates, the molten material is extruded...

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Abstract

The invention relates to an extinction casting PE film and a production process thereof. The extinction casting PE film comprises a heat sealing layer, an intermediate layer and a corona layer, wherein the heat sealing layer comprises extinction masterbatch, a PP elastomer, PP ternary coating resin, opening masterbatch, a slipping agent and a processing aid; the intermediate layer comprises cast linear PE resin, high density polyethylene and a processing aid; and the corona layer comprises cast linear PE resin. The extinction cast PE film prepared by the composition is suitable for the requirements of printing equipment: excellent thickness uniformity, stable friction coefficient, 10% high tensile strength, high tensile breaking force, low surface gloss of extinction surface, high overallhaze of the film, fine appearance of the film surface, suitability for high-speed printing of intaglio and flexographic plates, accurate color coating and no deviation during intaglio multi-color printing.

Description

technical field [0001] The invention belongs to the field of film materials, in particular to a matte cast PE film and a production process thereof. Background technique [0002] In recent years, with the rapid development of the packaging industry, consumers have higher and higher requirements for the packaging of various products, and the matte PE film is one of the fastest growing ones. Matte PE film not only has a good visual presentation effect, but also can improve the product packaging grade. Compared with common PP, PET, NY and other matt film materials, matt PE film has the characteristics of low price, which is favored by more and more packagers. favor. The common matte PE blown film on the market has uneven thickness, and it is easy to stretch and extend under force. In gravure multi-color printing, due to the long printing channel and high tension, the color registration accuracy is poor, and it is easy to run off when the printing speed is fast. . SUMMARY OF...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/06C08K3/00C08K5/00C08J5/18B32B27/32B32B27/08B32B27/18B29D7/01
CPCB29D7/01B32B27/08B32B27/18B32B27/32C08J5/18C08J2323/06C08J2323/12C08J2423/06C08J2423/12C08K3/00C08K5/00
Inventor 查显宇汪学文胡忠立
Owner HUANGSHAN NOVEL
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