Puffed food gas packing composite film suitable for plateau areas and preparation method thereof

A technology for puffed food and inflatable packaging, which is applied in chemical instruments and methods, packaging, household packaging, etc., and can solve problems such as pinhole air leakage, poor pressure resistance, and explosive bags

Inactive Publication Date: 2018-12-07
湖北宏裕新型包材股份有限公司
View PDF6 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned composite films have certain packaging problems in the marketing process in plateau and high-altitude areas, that is, with the change of altitude, the external air pressure also decreases with the increase of altitude, so the atmospheric pressure will decrease by 1KPa for every increase of 1000m
Therefore, the packaging problems caused by the atmospheric pressure difference are mainly reflected in: (1) During the prod

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
  • Puffed food gas packing composite film suitable for plateau areas and preparation method thereof
  • Puffed food gas packing composite film suitable for plateau areas and preparation method thereof
  • Puffed food gas packing composite film suitable for plateau areas and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 2

[0043] Such as figure 1 A preparation method of an inflatable packaging composite film suitable for puffed food in plateau environment is shown, including a printing layer BOPE film 1, a barrier layer VMBOPP film 2, and a heat-sealing layer modified polyethylene film 3.

[0044] The printing layer is BOPE film with a thickness of 25 microns, and the composite surface is corona treated to 50 dynes, and the polyester ink of the electronic axis gravure printing machine is used to complete the printing of color graphics on the corona surface.

[0045] The barrier layer VMBOPP is vacuum aluminized polyester film with a thickness of 19 microns, the wetting tension of the aluminized surface is 50mN / m, and the thickness of the aluminum layer is 1.95Ω.

[0046] Adopt Varex type three-layer co-extrusion blow molding machine of German W@H company, longitudinal stretching and blowing process, layer thickness ratio = 1:2:1, inflation ratio = 2.5:1, frost cold line height = 3DD. Blown film...

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
Compressive strengthaaaaaaaaaa
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention discloses a preparation method of a puffed food gas packing composite film suitable for plateau areas. The composite film is composed of three layers: a printed layer, a barrier layer, and a heat-seal layer, preferably, the printed layer is a biaxially oriented polyethylene (BOPE) film, the barrier layer is a VMPET film or a VMBOPP film, the heat-seal layer is made of modified polyethylene with an interlayer design, and the layers are adhered together by a technology using a polyether modified solvent-free adhesive. The prepared composite film has a soft/rigid/soft layered structure, is flexible, is capable of sustaining a pressure of 80 KPa or more, has the characteristics of simple technology and low cost, and is suitable of puffed food gas packing in plateau areas.

Description

technical field [0001] The patent belongs to the technical field of packaging, and specifically relates to a preparation method of a composite film suitable for inflatable packaging of puffed food in a plateau environment. Background technique [0002] Potato chips, shrimp crackers and other puffed foods are popular among consumers as a kind of leisure snacks, and their packaging forms are mostly inflatable composite film flexible packaging. Take the most common biaxially oriented polypropylene / vacuum aluminized biaxially oriented polyethylene terephthalate / polyethylene (BOPP / VMPET / PE) three-layer structure as an example, that is, BOPP is used as the printing film layer, and VMPET is used as the printing layer. Light-proof barrier film layer, PE heat-sealing film layer. The main process is currently divided into two types: (1) The polyurethane adhesive dry lamination process is used to bond the layers to form a composite film; (2) The BOPP / VMPET layer is laminated by PE mel...

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): B32B27/36B32B27/08B32B27/30B32B27/00B32B7/12B32B33/00B65D30/08B29C47/06
CPCB32B7/12B32B27/08B32B27/30B32B27/36B32B33/00B32B2307/50B32B2439/06B32B2439/70B65D11/20
Inventor 邓锐俞学锋李知洪邹家武
Owner 湖北宏裕新型包材股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap