BOPP film with endurable and smoothness characteristics and preparation method therefor

A smooth and thin film technology, applied in packaging film materials, BOPP film with durable and smooth characteristics and its preparation field, can solve the problems of decreased gloss, shortened timeliness of use by downstream customers, increased haze, etc., to delay migration The speed to the surface of the film, the stability of product quality, and the effect of increasing the action time

Inactive Publication Date: 2015-12-23
ZHONGSHAN FLASHLIGHT POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, after a period of time, the slip agent migrated from the inner layer of the BOPP film will cause loss through other methods such as volatilization and precipitation. If the migration speed to the surface of the film is too f...

Method used

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  • BOPP film with endurable and smoothness characteristics and preparation method therefor

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Embodiment Construction

[0028] The BOPP film with durable and slippery properties of the present invention is mainly formed by a core layer, a surface layer on both sides of the core layer and an inner layer co-extruded and formed, and the surface layer is made of the following raw materials in weight percentage: homopolypropylene resin 96.0 %-96.8%, slip agent 0.1%-2.0%, anti-blocking agent 0.1%-2.0%; the core layer is made of the following weight percentage of raw materials: homopolypropylene resin 99.5%-99.7%, antistatic agent 0.3%-0.5%; The inner layer is made of the following weight percentages of raw materials: homopolypropylene resin 84.1%-84.9%, slip masterbatch 14.0%-14.9%, anti-blocking agent 0.1%-2.0%, so The isotacticity of the homopolypropylene resin is above 95%.

[0029] The slipping masterbatch used in the inner layer is made by blending homopolypropylene resin, nano-inorganic materials and slip agents. The nano-inorganic materials are selected from among nano-silica, nano-calcium carbon...

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Abstract

The invention discloses a BOPP film with endurable and smoothness characteristics. The BOPP film is formed by a core layer, a surface layer and an inner layer through co-extrusion and combination. The surface layer comprises, by weight, 96.0%-96.8% of homo-polypropylene resins, 0.1%-2.0% of slipping agents and 0.1%-2.0% of antiblocking agents. The core layer comprises, by weight, 99.5%-99.7% of homo-polypropylene resins and 0.3%-0.5% of antistatic agents. The inner layer comprises, by weight, 84.1%-84.9% of homo-polypropylene resins, 14.0%-14.9% of slipping master batches and 0.1%-2.0% of antiblocking agents. The invention also discloses a preparation method for the BOPP film. The slipping master batches are prepared from homo-polypropylene resins, nano inorganic materials and slipping agents through the synergistic effect and are added in the inner layer components, the finally prepared BOPP film has various performances same as a common BOPP film, and can delay loss of the slipping agents in the product. Thus the slipping system plays a lasting and effective role, the packaging film has durable slipping characteristics in a certain time quantum, and the packaging speed is ensured.

Description

Technical field [0001] The invention belongs to the technical field of plastic film production, and relates to a packaging film material, in particular to a BOPP film with durable and smooth characteristics and a preparation method thereof. Background technique [0002] BOPP film, the abbreviation of BiaxiallyOrientedPolypropylene", that is, biaxially oriented polypropylene film, is an important flexible packaging material with a wide range of applications. It can be used as the surface layer material of composite film for food, daily necessities, etc. packaging, and also for coating. Secondary processing production. [0003] In actual production, the addition of a slip agent can make the surface of the BOPP film slippery and reduce the friction coefficient of the surface to the required level or value, which is beneficial to improve the smoothness of the composite flexible packaging material through the automatic packaging machine. The slip agent is usually added to the surface l...

Claims

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Application Information

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IPC IPC(8): B32B27/08B32B27/20B32B27/32C08L23/12C08L83/04C08K7/20C08K3/36
CPCB32B27/08B32B2250/03B32B2250/242B32B2264/10B32B2264/104B32B2264/12C08K2201/003C08K2201/011C08K2201/017C08L2203/16C08L2205/025C08L2205/03C08L2205/035C08L23/12C08L83/04C08K7/20C08K3/36C08K5/103
Inventor 张莉琼涂志刚赵素芬刘晓艳熊立贵
Owner ZHONGSHAN FLASHLIGHT POLYTECHNIC
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