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

High-barrier composite food packaging film and preparation method thereof

A composite food, high barrier technology, applied in the direction of packaging, wrapping paper, wrapping paper, etc., can solve the problems of poor mechanical strength of composite packaging film, limit the use of composite packaging film, puncture, etc.

Active Publication Date: 2017-02-01
佛山德信诚包装有限公司
View PDF6 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the composite packaging film has excellent water resistance, corrosion resistance and weather resistance, the mechanical strength of the composite packaging film is poor, and it is often prone to tearing, stretching deformation and puncture, which limits the composite packaging film. further use

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

preparation example Construction

[0013] The invention provides a method for preparing a high-barrier composite food packaging film, comprising:

[0014] 1) Extruding starch, white carbon black, methylcellulose, carbon nanotubes and water to obtain puffed products;

[0015] 2) Mix PP (polypropylene), PVAL (polyvinyl alcohol), n-butyl methacrylate, white oil, lactic acid, rare earth oxides, tea polyphenols, globulin and puffed products to obtain a mixed product;

[0016] 3) The paper substrate is roughened, and then the coupling agent is coated on the surface of the paper substrate to form a coupling layer, and then the kneaded material is coated on the surface of the coupling layer to form a protective layer, and finally dried to produce High barrier composite food packaging film.

[0017] In step 1) of the present invention, the specific conditions of the puffing treatment can be selected within a wide range, but in order to further improve the excellent mechanical properties of the prepared high-barrier com...

Embodiment 1

[0031] 1) Starch, white carbon black, methyl cellulose, carbon nanotubes (with a particle size of 20nm) and water are puffed at 80°C for 13 hours at a weight ratio of 100:12:2:0.7:180 to obtain puffed products ;

[0032] 2) Mix PP, PVAL, n-butyl methacrylate, white oil, lactic acid, lanthanum oxide, tea polyphenols, globulin and puffed products according to the ratio of 100:58:37:14:20:5:1.4:7:35 Mixing at 190°C for 10 hours by weight to obtain a kneaded product;

[0033] 3) The paper substrate (vellum, thickness 10 silk) is roughened until the surface roughness is 3-8Ra, and the coupling agent KH550 is coated on the surface of the paper substrate to form a coupling layer (thickness 0.2 silk). Cover the surface of the coupling layer to form a protective layer (thickness is 0.7 silk), and finally dry (from 25°C to 55°C at a rate of 2°C / min and hold for 3 hours, then at a rate of 0.7°C / min to 78 ℃ and keep warm for 11h) to prepare high barrier composite food packaging film A1....

Embodiment 2

[0035] 1) Starch, white carbon black, methylcellulose, carbon nanotubes (with a particle size of 10nm) and water are puffed at 70°C for 10 hours at a weight ratio of 100:10:1:0.5:150 to obtain puffed products ;

[0036] 2) Mix PP, PVAL, n-butyl methacrylate, white oil, lactic acid, rubidium oxide, tea polyphenols, globulin and puffed products according to the ratio of 100:45:35:9:14:3:1.1:5:30 Mixing at 185°C for 8 hours by weight to obtain a mixture;

[0037] 3) The paper substrate (jute paper, thickness 5 filaments) is roughened until the surface roughness is 3Ra, and the coupling agent KH560 is coated on the surface of the paper substrate to form a coupling layer (thickness 0.1 filaments). On the surface of the coupling layer to form a protective layer (thickness of 0.5 silk), and finally dry (from 20°C at a rate of 1°C / min to 50°C and keep it for 2 hours, then at a rate of 0.5°C / min to 75°C and heat preservation for 9 hours) to prepare high barrier composite food packagi...

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
Particle sizeaaaaaaaaaa
Surface roughnessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a high-barrier composite food packaging film and a preparation method thereof. The preparation method includes the steps: 1) expanding starch, white carbon black, methylcellulose, carbon nano-tubes and water to prepare expanded materials; 2) mixing PP (polypropylene), PVAL (polyvinyl alcohol), n-butyl methacrylate, white oil, lactic acid, rare earth oxide, tea polyphenol, globulin and the expanded materials to obtain mixed materials; 3) matting a paper substrate, coating the surface of the paper substrate with coupling agents to form a coupling layer, coating the surface of the coupling layer with the mixed materials to form a protective layer, and finally drying the protective layer to prepare the high-barrier composite food packaging film. The high-barrier composite food packaging film prepared by the method has excellent mechanical property, the preparation method is simple in procedure, raw materials are easily obtained, and further popularization of the method is facilitated.

Description

technical field [0001] The invention relates to a food packaging film, in particular to a high-barrier composite food packaging film and a preparation method thereof. Background technique [0002] At present, the most widely used food and drug composite packaging films in China are made of ordinary BOPP film (biaxially oriented polypropylene plastic film) and PP film (polypropylene blown film); the composite packaging film is cheap and easy to make , is very popular in the packaging industry. [0003] Although the composite packaging film has excellent water resistance, corrosion resistance and weather resistance, the mechanical strength of the composite packaging film is poor, and it is often prone to tearing, stretching deformation and puncture, which limits the composite packaging film. for further use. Contents of the invention [0004] The purpose of the present invention is to provide a high-barrier composite food packaging film and its preparation method. 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
IPC IPC(8): D21H27/10D21H19/14D21H19/20D21H19/22D21H21/16D21H21/38D21H21/14
CPCD21H19/14D21H19/20D21H19/22D21H21/14D21H21/16D21H21/38D21H27/10
Inventor 李千林程环明
Owner 佛山德信诚包装有限公司
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