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High-block degradable membrane and its manufacturing method

A degradable film, high barrier technology, applied in the direction of chemical instruments and methods, layered products, synthetic resin layered products, etc., to achieve the effect of good transparency

Inactive Publication Date: 2005-07-20
包头市恒瑞新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, PVDC film raw materials have always been dependent on imports. At present, the total investment of 60,000 tons of PVDC resin under construction and planned in China is nearly 2 billion yuan. It is difficult for all kinds of packaging films on the market to meet the above-mentioned advantages at the same time. , especially the degradable environmental protection characteristics, therefore, it is urgent to develop packaging film materials that are degradable, meet the requirements of environmental protection, and meet the requirements of food packaging

Method used

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  • High-block degradable membrane and its manufacturing method
  • High-block degradable membrane and its manufacturing method
  • High-block degradable membrane and its manufacturing method

Examples

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Embodiment Construction

[0073] In one embodiment of the present invention, the packaging film and bag are PO / nano-PPC or nano-PVA / PO three-layer structure.

[0074] In another embodiment of the present invention, the food packaging film and bag are at least one of PO / nano-modified PPC, (PCL) or (APC) or a combination thereof / PVA / PPC, PCL or APC At least one or its combination / POD five-layer structure. The thickness of various embodiments is 5-50um / 10-100um / 5-50um5-30um / 5-30um / 10-50um / 5-30um / 5-30um.

[0075] See attached picture:

[0076] figure 1 The structure is PO / nano-PPC or nano-PVA / PO three-layer structure, wherein the A layer is PO, and the B layer is one of nano-PPC, nano-PVA or a combination thereof.

[0077] figure 2 It is at least one of PO / nano-modified PPC, (PCL) or (APC) or its combination / at least one of PVA / PPC, PCL or APC or a combination / POD five-layer structure, wherein the A layer is PO , The B layer is at least one of nano-modified PPC, (PCL) or (APC) or a combination thereo...

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Abstract

The invention provides a high-block degradable membrane product and its manufacturing method, in particular, a degradable membrane using carbon dioxide resin as a barrier material. The high-block degradable membrane of the invention comprises a layer structure having at least two outer layers and a barrier layer, the barrier layer is nanometer polymers or degradable nanometer polymers; the outer layers are polyolefin or degradable polyolefin. The high-block degradable membrane of the invention has good transparency, gas barrier property, heat sealing property, printing ability, solves a problem that a current domestic and foreign dry type composite or coextruded plastic food membrane bag have no environmental protection characteristics, satisfies characteristic request of generally used thermoduric cooking food packing membranes and bags, is capable of being degraded to small molecule materials under action of light and / or organism, is a high performance environmental protection product.

Description

technical field [0001] The invention relates to a high-barrier degradable film and a manufacturing method thereof, in particular to a degradable film processed with carbon dioxide resin as a barrier material and a manufacturing method thereof. Background technique [0002] In the field of food packaging, it is usually required that high-temperature cooking food packaging films or bags meet the following requirements: [0003] √It can withstand heating and cooking at 121°C for 40 minutes, without deformation inside and outside the packaging bag, without cracking or permeation at the heat seal, and without separation of layers. [0004] √ High barrier to oxygen, water vapor, food aroma, seasoning aroma, etc. [0005] √Good chemical stability, no chemical reaction with acid, alkali, salt solvent, oil. [0006] √Good mechanical strength and good heat sealing performance. [0007] √ Make ham sausage packaging with meat stickiness. [0008] √Comply with food hygiene requiremen...

Claims

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Application Information

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IPC IPC(8): B29C47/06B32B27/32
Inventor 朱春英
Owner 包头市恒瑞新材料科技有限公司
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