Co-extruded self-adhesive polypropylene film and production process thereof

A polyethylene film and production process technology, applied in the direction of layered products, synthetic resin layered products, chemical instruments and methods, etc., can solve the problems of environmental pollution, glue residue, easy residue, etc., and achieve cost reduction and release Good strength, solve the effect of destruction

Inactive Publication Date: 2019-03-08
湖北冠誉塑料包装制品有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing protective film widely used in industry is mainly coated on the surface of ordinary film with glue. It is very easy for the glue to remain on the surface of the protected product during use, which cannot improve the value of the product. The product has long-distance freight transportation and sea shipping, and the temperature reaches 70°C, which is more likely to produce residues and cannot protect industrial products; in addition, because the traditional glue-coated polyethylene film glue will contain toluene components, it cannot be truly environmentally friendly, so it is environmentally friendly. serious pollution

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1, wherein the polymer material accounts for 8.8% by weight, polyethylene accounts for 90% by weight, and silicon dioxide accounts for 1.2% by weight. The polymer material is thermoplastic elastomer (POEdow8150).

Embodiment 2

[0021] Embodiment 2, wherein the polymer material accounts for 12% by weight, polyethylene accounts for 87% by weight, and silicon dioxide accounts for 1% by weight. The polymer material is thermoplastic elastomer (POEdow8150).

[0022] Embodiment 2, wherein the polymer material accounts for 15.2% by weight, polyethylene accounts for 84% by weight, and silicon dioxide accounts for 0.8% by weight. The polymer material is thermoplastic elastomer (POEdow8150).

[0023] A kind of production technique of co-extrusion self-adhesive polyethylene film of the present invention comprises following technique and step:

[0024] 1). The polymer masterbatch is made by mixing polymer materials and polyethylene to granulate. The granulation temperature is between 220°C and 240°C to solve the problem of residue and product high temperature protection. The time is 28-32 minutes; In this example it was 30 minutes.

[0025] 2). Drier for drying.

[0026] 3). To solve the release problem, the ...

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 relates to a production process of co-extruded self-adhesive polypropylene film, comprising the steps of 1) manufacturing polymeric masterbatch, to be specific, mixing a polymeric material and polypropylene for granulating; 2) drying with a dryer; 3) mixing well polypropylene and release material silicon dioxide proportionally with a mixer; 4) matching three tiers of material via a bucket, namely dispensing for film blowing; 5) heating to 210-240 DEG C at a time; 6) melting the master batch in a screw, namely melting the mater nearly in water state in the screw; 7) blowing film with a film blowing machine; 8) finishing a product. The damage of common glued polypropylene film is overcome, energy is saved, the cost is reduced, damage to industrial products due to glue is overcome, and the film herein can tolerate a high temperature of 130 DEG C. The film produced via the production process reaches 400 g / 25 cm<2> in adsorbing power, has good release capacity and low cost, isenvironmentally friendly, can tolerate the high temperature of 130 DEG C, and is widely applicable to surface protection for industrial products.

Description

technical field [0001] The invention relates to a surface protection film, in particular to a co-extruded self-adhesive polyethylene film and its production process. Background technique [0002] The existing protective film widely used in industry is mainly coated on the surface of ordinary film with glue. It is very easy for the glue to remain on the surface of the protected product during use, which cannot improve the value of the product. The product has long-distance freight transportation and sea shipping, and the temperature reaches 70°C, which is more likely to produce residues and cannot protect industrial products; in addition, because the traditional glue-coated polyethylene film glue will contain toluene components, it cannot be truly environmentally friendly, so it is environmentally friendly. serious pollution. [0003] Therefore, the industry is badly in need of a co-extruded self-adhesive polyethylene film and a production process thereof that can solve the ...

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): B32B27/06B32B27/08B32B27/20B32B27/32B32B7/06B29C55/28
CPCB32B27/08B29C55/28B32B7/06B32B27/20B32B27/32B32B2250/03B32B2250/24B32B2264/102B32B2307/306B32B2307/748
Inventor 蔡学林
Owner 湖北冠誉塑料包装制品有限公司
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