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

Electron crosslinking enhanced PE film and preparation method thereof

An electronic cross-linking and film technology, which is applied in chemical instruments and methods, flat products, and other household appliances, etc., can solve the problems of insufficient strength of PE base film, easy stretching and deformation, overprinting, puncture and broken bags, etc., and reach the heat sealing temperature Wide range, resistance to mechanical scratches on the surface, and high heat-sealing strength

Pending Publication Date: 2021-03-30
SUNRISE PACKAGING MATERIAL JIANGYIN CO LTD
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The first purpose of the present invention is to provide a PE film enhanced by electronic cross-linking. The prepared PE film material can be recycled, can meet the accuracy of printing overprint, and is resistant to high temperature and easy to be thermoformed, which solves the problem of the PE cover film in the printing process. The problem of inaccurate overprinting due to easy stretching and deformation, and the problem of sealing and melting due to the low melting point of PE; at the same time, the problem of puncture and bag breakage of the PE backing film due to insufficient strength is solved

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
  • Electron crosslinking enhanced PE film and preparation method thereof
  • Electron crosslinking enhanced PE film and preparation method thereof
  • Electron crosslinking enhanced PE film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A kind of preparation method of the PE film that electronic cross-linking strengthens, comprises the following steps:

[0054] Blown film→electronic cross-linking→(printing)→composite→curing→slitting

[0055] Firstly, the raw materials required for the PE film are blown, then electronically cross-linked, printed as required, then compounded, matured, and cut to obtain the electronically cross-linked enhanced PE film.

[0056] Blown film: PE film thickness uniformity control: average deviation ≤ 3%, limit deviation ≤ 5%.

[0057] Described film blowing comprises the following steps:

[0058] In the first layer, HDPE, the raw material of the heat-resistant layer, is added to the hopper of the extruder, melted at a temperature of 170-200°C, and enters the die;

[0059] In the second layer, the raw material LDPE of the first cross-linking layer is put into the hopper of the extruder, melted at a temperature of 170-200°C, and enters the die;

[0060] In the third layer, t...

Embodiment 2

[0098] A PE film enhanced by electronic cross-linking, from top to bottom: heat-resistant layer, first cross-linked layer, second cross-linked layer, third cross-linked layer, fourth cross-linked layer, fifth cross-linked layer , the sixth cross-linked layer, the seventh cross-linked layer, and the composite layer;

[0099] The material of the heat-resistant layer is HDPE, and the layer thickness is 25%; the material of the first cross-linked layer is LDPE, and the layer thickness is 8%; the material of the second cross-linked layer is LDPE, and the layer thickness is 8%; The material of the third cross-linked layer is LDPE, and the layer thickness is 8%; the material of the fourth cross-linked layer is LDPE, and the layer thickness is 8%; the material of the fifth cross-linked layer is LDPE, and the layer thickness is 8%; The material of the sixth cross-linked layer is LDPE, and the layer thickness is 8%; the material of the seventh cross-linked layer is LDPE, and the layer t...

Embodiment 3

[0102] A PE film enhanced by electronic cross-linking, from top to bottom: heat-resistant layer, first cross-linked layer, second cross-linked layer, third cross-linked layer, fourth cross-linked layer, fifth cross-linked layer , the sixth cross-linked layer, the seventh cross-linked layer, and the composite layer;

[0103] The material of the heat-resistant layer is HDPE, and the layer thickness is 20%; the material of the first cross-linked layer is LDPE, and the layer thickness is 10%; the material of the second cross-linked layer is LDPE, and the layer thickness is 10%; The material of the third cross-linked layer is LDPE, and the layer thickness is 10%; the material of the fourth cross-linked layer is LDPE, and the layer thickness is 10%; the material of the fifth cross-linked layer is LDPE, and the layer thickness is 10%; The material of the sixth cross-linked layer is LDPE, and the layer thickness is 10%; the material of the seventh cross-linked layer is LDPE, and the l...

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

No PUM Login to View More

Abstract

The invention discloses an electronic crosslinking enhanced PE film which sequentially comprises a heat-resistant layer, a first cross-linking layer, a second cross-linking layer, a third cross-linking layer, a fourth cross-linking layer, a fifth cross-linking layer, a sixth cross-linking layer, a seventh cross-linking layer and a composite layer from top to bottom. Compared with a non-electroniccrosslinking film, the electronic crosslinking enhanced PE film is high in heat sealing strength and wide in heat sealing temperature range; the stiffness and the surface hardness of the electronic crosslinking enhanced PE film are increased, and the electronic crosslinking enhanced PE film is resistant to surface mechanical scratch; the impact strength of the electron crosslinking enhanced PE film is higher than that of the non-electron crosslinking film.

Description

technical field [0001] The invention belongs to the technical field of packaging films, and in particular relates to an electronically cross-linked and enhanced PE film used as a single recyclable material for thermoforming and packaging frozen meat products and a preparation method thereof. Background technique [0002] At present, BOPA, BOPET, and BOPP are used in thermoforming packaging frozen meat packaging films. These materials are not a single material when combined with polyolefins with heat-sealing functions; currently common heat-sealing layer materials are propylene (PP), ethylene (PE) and other olefin polymers, PE is suitable for freezing meat products, PP materials will become brittle and easy to break under freezing conditions; ethylene materials are easier to electronically cross-link than other materials, and the degree of cross-linking is relatively low. high. [0003] The patent application with the publication number CN112009058A discloses a PE film for p...

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
IPC IPC(8): B32B27/32B32B27/06B32B27/08B32B33/00B65D65/40B29D7/01
CPCB29D7/01B32B27/06B32B27/08B32B27/32B32B33/00B32B2307/31B32B2307/54B32B2307/558B65D65/40
Inventor 陈德元杨伟刘金花
Owner SUNRISE PACKAGING MATERIAL JIANGYIN CO LTD
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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com