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A kind of matting cast PE film and its production process

A technology of casting and matting masterbatch, 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 achieves obvious matting effect and tensile breaking force. Large, good printing effect

Active Publication Date: 2021-11-12
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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  • A kind of matting cast PE film and its production process
  • A kind of matting cast PE film and its production process
  • A kind of matting cast PE film and its production process

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. Plasticized into a melt under high temperature conditions;

[0030] The heat-sealing layer includes casting PE special matting masterbatch, PP elastomer, PP ternary coating resin, opening masterbatch, slip agent and processing aid with a mass ratio of 25:25:35:0.5:0.4:0.3. agent; the intermediate layer includes cast linear PE resin, high-density polyethylene and processing aids with 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 driving force generated by the thread when the screw of the extruder rotates, the melt 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. Plasticized into a melt under high temperature conditions;

[0048] The heat-sealing layer includes casting PE special matting masterbatch, PP elastomer, PP ternary coating resin, opening masterbatch, slip agent and processing aid with a mass ratio of 24:24:33:0.4:0.3:0.2. agent; the intermediate layer includes a mass ratio of 24:48:0.2 cast linear PE resin, high-density polyethylene and processing aids; 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 driving force generated by the thread when the screw of the extruder rotates, the melt is extruded from t...

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. Plasticized into a melt under high temperature conditions;

[0063] The heat-sealing layer includes casting PE special matting masterbatch, PP elastomer, PP ternary coating resin, opening masterbatch, slip agent and processing aid with a mass ratio of 26:26:37:0.6:0.5:0.4. agent; the intermediate layer includes a mass ratio of 26:52:0.4 cast linear PE resin, high-density polyethylene and processing aids; 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 driving force generated by the thread when the screw of the extruder rotates, the melt is extruded from...

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Abstract

The invention relates to a matting cast PE film and a production process thereof. The matting cast PE film includes a heat-sealing layer, an intermediate layer and a corona layer; the heat-sealing layer includes matting masterbatches, PP elastomers, PP ternary coating resins, opening masterbatches, slip agents and processing aids; The layers include cast linear PE resin, high density polyethylene and processing aids; the corona layer includes cast linear PE resin. The matte cast PE film prepared by the above formula is suitable for the requirements of printing equipment: excellent thickness uniformity, stable friction coefficient, high 10% tensile strength, large tensile breaking force, low surface gloss on the matte surface, The overall haze of the film is high, and the appearance of the film surface is delicate, which can adapt to high-speed gravure and flexographic printing, and the color registration is accurate during gravure multi-color printing without deviation.

Description

technical field [0001] The invention belongs to the field of film materials, and in particular relates to a matting 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 product packaging, and matte PE film is one of the fastest growing types. Matte PE film not only has a good visual presentation effect, can improve the product packaging grade, but also compared with common PP, PET, NY and other matt film materials, matte PE film has the characteristics of low price, and is favored by more and more packagers. favor. The matte PE blown film common in the market has uneven thickness and is easy to stretch and elongate 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. . Contents of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/06C08J5/18B32B27/32B32B27/08B32B27/18B29D7/01
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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