Ultraviolet-proof and biodegradable packaging film

A biodegradable and ultraviolet technology, applied in the field of packaging film, can solve the problem of poor anti-ultraviolet ability, achieve good physical and mechanical properties, strong ultraviolet blocking rate, and long-term packaging protection effect
CN104339797AActive Publication Date: 2015-02-11大连华诺塑胶科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
大连华诺塑胶科技有限公司
Publication Date
2015-02-11

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Abstract

The invention provides an ultraviolet-proof and biodegradable packaging film. The packaging film comprises a biodegradable ultraviolet reflecting layer and a photodegradable ultraviolet absorbing layer, wherein the biodegradable ultraviolet reflecting layer is prepared from a poly(beta-hydroxybutyric acid)-beta-hydroxypentanoic acid copolymer, aluminum powder, lubricant paraffin, a calcium-zinc compound stabilizer and maleic anhydride, and the photodegradable ultraviolet absorbing layer is prepared from an ethylene-carbon monoxide copolymer, an anti-ultraviolet mixture, titanium dioxide and the lubricant paraffin, wherein the thickness ratio of the biodegradable ultraviolet reflecting layer to the photodegradable ultraviolet absorbing layer is 1:(1-3), and the thickness of the photodegradable ultraviolet absorbing layer ranges from 0.005mm-0.12mm. The ultraviolet-proof and biodegradable packaging film is capable of rejecting more than 90% of ultraviolet, has excellent mechanical and physical properties, and can be degraded 100% without any pollution on the environment.
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Description

technical field

[0001] The invention relates to a packaging material, especially a packaging film. Background technique

[0002] Polyethylene plastic film is the preferred packaging material in the packaging industry. At present, the per capita consumption of packaging materials in the world is 145kg / year, of which plastic products account for about 10% to 15%, which is a huge amount. Waste plastics have caused serious pollution to the environment. Therefore, degradable packaging plastics and packaging products are on the rise. For example, CN102924890 has disclosed a fully biodegradable heat-shrinkable film and its preparation method. This invention solves the problem of non-degradable heat-shrinkable film and plays a role in protecting the environment, but it does not take into account the decomposition and endowment of the film during use. Questions about other functions. For example, its anti-ultraviolet ability is not as good as that disclosed in CN102248728A, a kin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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