Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Foodstuff packaging membrane and its manufacturing method

A technology of food packaging film and manufacturing method, which is applied in the directions of packaging, wrapping paper, transportation and packaging to achieve the effects of good meat stickiness, increased heat distortion temperature and low production cost

Inactive Publication Date: 2011-01-12
朱春英
View PDF12 Cites 0 Cited by
  • 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

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Foodstuff packaging membrane and its manufacturing method
  • Foodstuff packaging membrane and its manufacturing method
  • Foodstuff packaging membrane and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0064] In one embodiment of the present invention, the packaging film has a three-layer structure of RF-PA / nano-polymer or EVOH / PA, wherein the nano-polymer is one of nano-PA, nano-EVOH or nano-PET.

[0065] In another embodiment of the present invention, the packaging film has a five-layer structure of RF-PA / nano-PA / MXD6 or EVOH / PA / RF-PA.

[0066] The production method is as follows: select a plasticizing extruder according to the number of layers of the food packaging film bag, extrude through a co-extrusion die, and wind and water cool (up blowing or down blowing) and then draw and coil.

[0067] The production method of the heat-shrinkable stretch film is as follows: through multiple plasticizing extruders, extruding through a co-extrusion film head, down-blown water cooling, synchronous biaxial stretching, heat setting, and rolling to obtain a heat-shrinkable stretch film.

[0068] The transparency of the product of the present invention is that the total light transmitta...

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
Login to View More

PUM

PropertyMeasurementUnit
glass transition temperatureaaaaaaaaaa
melting pointaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a production of food packaging film and the method for preparation, specifically a degradable complex film prepared with degradable nanometer PA polymer as the obstruct material. Said complex film has a layer structure containing at least two outer layers and one interlayer, at least one layer among which is the obstruct layer, the obstruct layer being made up of degradable nanometer PA polymer, and others being made up of degradable polyolefin or polyolefin. Compared with the high-obstruct film prepared with PVDC, the invention overcomes the shortcomings that the manufacture is hard, the cost is high, environmental pollution is serious, and the recovery is hard. And the high-obstruct packaging film prepared mainly with nanometer PA has identical obstruct effect with PVDA film.

Description

technical field [0001] The invention relates to a food packaging film and a manufacturing method thereof, belonging to the technical field of nano-plastics. 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 requirements, non-toxic and harmless to human body. [0009] Since the development in Europe and...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B65D65/40B32B27/00B29C49/04B29C47/06B29C55/28
Inventor 朱春英
Owner 朱春英
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products