Two-way linear easy-to-tear polyethylene film and production process thereof

A polyethylene film and production process technology, applied in the field of packaging film materials, can solve the problems of general linear tearability, low tensile strength, poor mechanical properties, etc., and achieve excellent linear tearability, high tensile strength, and production. low cost effect
CN109263200AActive Publication Date: 2019-01-25HUANGSHAN NOVEL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUANGSHAN NOVEL
Publication Date
2019-01-25

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Abstract

The invention relates to a two-way linear easy-to-tear polyethylene film and a production process thereof. The polyethylene film is obtained through the processing by a tape casting process; the polyethylene film comprises a hot sealing layer, a middle layer and a corona layer; the hot sealing layer is prepared from the following ingredients by weight: 80 to 84 percent of low density polyethylene,15 to 18 percent of polybutylene, 0.5 to 1.0 percent of smoothening agent and 0.5 to 1.0 percent of opening master batch; the middle layer is prepared from the following ingredients by weight: 65 to70 percent of low density polyethylene, 20 to 25 percent of high density polyethylene, 0.1 to 0.5 percent of processing auxiliary agent and 8 to 12 percent of polybutylene; the corona layer is prepared from the following ingredients by weight: 99.5 to 99.9 percent of low density polyethylene and 0.1 to 0.5 percent of processing auxiliary agent. The polyethylene film has the advantages that the mist degree is low; the light transmission rate is high; the mechanical performance is good; the linear easy-to-tear performance is excellent; the processing cost is low.
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Description

technical field

[0001] The invention belongs to the field of packaging film materials, and in particular relates to a bidirectional linear easy-tear polyethylene film and a production process thereof. Background technique

[0002] With the improvement of packaging technology, people are no longer satisfied with the necessary functions of food packaging, such as simply protecting food and prolonging the shelf life of food, but put forward higher and higher requirements for the ease of use of food packaging in actual use. Among them, the easy tearability of packaging is one of the practical functions that people pay more attention to. The traditional linear easy-to-tear PE film on the market is mostly modified by cyclic olefin copolymer (COC), which has high haze, low light transmittance, and poor mechanical properties (including low tensile strength and low impact resistance. ), and the linear easy-to-tear performance is average, it needs to be used in combination with other...

Claims

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