Eleven-layer coextrusion runner system

A laminar flow channel and split flow channel technology is applied in the field of eleven co-extrusion split flow channel systems, which can solve the problems of raw material waste, rising material costs, solvent residues, etc., and achieve the effect of saving energy and production costs

Active Publication Date: 2009-11-04
张春华
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional food packaging materials have always relied on dry lamination of various films and barrier materials to meet the requirements of food packaging. However, dry lamination is due to the increase in material costs, waste of raw materials in the lamination process, and solvent residues during lamination. Problems, can no longer meet the requirements of food packaging
At present, multi-layer co-extruded high-barrier films have gradually replaced dry composite barrier materials. However, the three- to five-layer co-extrusion runner systems commonly used in the market cannot meet the requirements of some special multi-layer and multi-color composite films.

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
  • Eleven-layer coextrusion runner system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] See attached figure 1 As shown, this embodiment is mainly composed of a distributor 100, an adapter 200, and a three-channel die head 300. The channel switching valve 400 is fixed in the main body hole at the top of the distributor 100 with screws. The channel switching valve 400 can be processed into a suitable process. If the required flow path sequence needs to be converted to other flow path sequence, only one flow path switching valve needs to be replaced. A total of nine layers of flow channels are set in the distributor 100, the sixth layer of flow channel 106 is located in the center, and other flow channels are arranged in pairs around the sixth layer of flow channel 106 in a clothes hanger shape from inside to outside. Among them, the fifth layer of flow channels The channel 105 and the seventh channel 107 are the first group, the fourth channel 104 and the eighth channel 108 are the second group, the third channel 103 and the ninth channel 109 are the third g...

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 provides an eleven-layer coextrusion runner system, which consists of a distributer, an adaptor and a three-runner die head; a runner converting valve is fixed in a main body hole on the top of the distributor; nine layers of runners are arranged in the distributer; the sixth runner is positioned in the center; and the other runners are grouped in pairs around the sixth runner and arranged in a cloth hanger shape from inside to outside in turn, wherein the first runner and the eleventh runner pass through the distributer and extend into the three-runner die head, and the first runner and the eleventh runner and other five groups of the runners are together converged to a die head compression section in the three-runner die head; and one side of the adaptor is connected with a main body of the distributer, while the other side is connected with the three-runner die head. The eleven-layer coextrusion runner system has eleven composite layers, is a runner system converted in different composite ratios, can solve the problem of monopoly position of oversea multilayer coextrusion high barrier film production lines on inland, and saves a great deal of energy and production cost for domestic food packing market.

Description

Technical field: [0001] The invention relates to the technical field of film production, in particular to an eleven-time co-extrusion runner system. Background technique: [0002] Traditional food packaging materials have always relied on dry lamination of various films and barrier materials to meet the requirements of food packaging. However, dry lamination is due to the increase in material costs, waste of raw materials in the lamination process, and solvent residues during lamination. The problem is that it can no longer meet the requirements of food packaging. At present, multi-layer co-extruded high-barrier films have gradually replaced dry composite barrier materials. However, the three- to five-layer co-extrusion runner systems commonly used in the market cannot meet the requirements of some special multi-layer and multi-color composite films. . Invention content: [0003] The purpose of the present invention is to overcome the deficiencies of the prior art and pr...

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 Applications(China)
IPC IPC(8): B29C47/58B29C47/70B29C47/06B29C48/50
Inventor 张春华
Owner 张春华
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