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White winding membrane and production method thereof

A wrapping film, white technology, applied in white wrapping film, wrapping film manufacturing, and the production field of the above wrapping film, can solve problems such as large environmental impact, high production cost, unfavorable environmental protection, etc., achieves small environmental impact, firm coloring, cost low effect

Inactive Publication Date: 2012-11-28
太仓市鸿运包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, although the stretch film used in the market has better tensile properties, its production cost is relatively high, and it has a great impact on the environment, which is not conducive to environmental protection.
Moreover, the color quality of the colored stretch film used in specific occasions is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1) Fully mix 88% linear polyethylene, 8% tackifier and 4% white masterbatch by weight, and heat the above raw materials to 245°C to melt the raw materials;

[0020] 2) Extrude the molten raw material, and control the extrusion temperature at 220°C;

[0021] 3) Casting and cooling the extruded raw material to obtain the product of the present invention.

Embodiment 2

[0023] 1) Fully mix 90% linear polyethylene, 5% tackifier and 5% white masterbatch by weight, and heat the above raw materials to 245°C to melt the raw materials;

[0024] 2) Extrude the molten raw material, and control the extrusion temperature at 210°C;

[0025] 3) Casting and cooling the extruded raw material to obtain the product of the present invention.

Embodiment 3

[0027] 1) Fully mix 90% linear polyethylene, 6% tackifier and 4% white masterbatch by weight, and heat the above raw materials to 245°C to melt the raw materials;

[0028] 2) Extrude the molten raw material, and control the extrusion temperature at 230°C;

[0029] 3) Casting and cooling the extruded raw material to obtain the product of the present invention.

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PUM

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Abstract

The invention discloses a white winding membrane and a production method thereof. The white winding membrane comprises the following raw materials by weight percent: 88-90% of linear polyethylene, 5-8% of tackifier and 4-5% of master batch; firstly the raw materials by weight percent are mixed sufficiently and heated to 245 DEG C to be melted; the melted raw materials are extruded, wherein the extruding temperature is controlled to be 210-230 DEG C; and the extruded raw materials are cast and cooled so as to obtain the product. The white winding membrane provided by the invention is low in cost, firm in coloring and hardly affects the environment in production.

Description

technical field [0001] The invention relates to a stretch film, in particular to a white stretch film, belonging to the technical field of stretch film manufacture. The present invention also relates to a method for producing the above-mentioned stretch film. Background technique [0002] Stretch film, also known as stretch film, was the first in China to produce PVC stretch film with PVC as the base material and DOA as the plasticizer and self-adhesive effect. Due to environmental protection issues, high cost (compared to PE, relatively large proportion, small unit packaging area), poor stretchability and other reasons, when PE stretch film was produced in China from 1994 to 1995, it was gradually eliminated. PE stretch film first uses EVA as self-adhesive material, but its cost is high and tasteful. Later, PIB and VLDPE are used as self-adhesive material. The base material is now LLDPE, including C4, C6, C8 and metallocene PE. (MPE). [0003] Stretch stretch film is a k...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/08C08L31/04B29C69/02B29C47/92B65D65/02B29C48/92
CPCB29C48/911B29C48/08B29C48/92B29C2948/92704B29C2948/92895
Inventor 王向东
Owner 太仓市鸿运包装材料有限公司
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