Candy wrapping capable of reducing oxygen permeability and preparation method thereof

A technology of oxygen permeability and candy, which is applied in the field of candy packaging, can solve the problems of affecting barrier performance, fatal packaging materials, mechanical damage, etc., and achieve the effect of improving the performance of oxygen barrier, reducing oxygen permeability and prolonging the shelf life

Active Publication Date: 2015-03-25
SHANGHAI GUANSHENGYUAN FOOD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] (1) Due to the difference in coating process and coating amount of PVDC coated substrates, it is easy to cause uneven thickness of the coating layer, easy to produce pinholes and blind spots, and affect the barrier performance of the substrate
[0008] (2) During the printing process of two-layer packaging materials, the coating surface is the printing surface. The ink and solvent in printing will corrode the coating layer, forming more uneven surfaces, pinholes and blind spots, which will affect the barrier performance
[0009] (3) During the compounding process of the two-layer packaging material, due to the direct contact between the printed coating layer and the multi-track rollers, mechanical damage is prone to occur, which affects the barrier performance
Once the coating supplier and the printing composite packaging material supplier lack the necessary detection means, or even neglect quality control, it may be fatal to the user of the packaging material
Moreover, the test data shows that the oxygen permeability rate of this two-layer composite packaging material is difficult to be lower than 7, mostly between 8-12, and the result is high

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

[0033] 1) Printing process: Print a single-color pattern on the surface of the PE film through a multi-color gravure printing roller, and then dry it to remove the ethyl acetate solvent in the printing ink and solidify the ink.

[0034] 2) Composite process: First, apply a layer of adhesive on one side of the PET film by screen printing, then dry the PET film coated with adhesive at 60°C for 48 hours; secondly, at 50°C, the KPET film The material is compounded with the side of the above-mentioned PET film material coated with adhesive;

[0035] Again, apply a layer of adhesive on the other side of the above PET film by screen printing, and dry the PET film coated with adhesive at 65°C for 48 hours; then, at 50°C, dry the PE film without The patterned side is compounded with the side of the PET film material coated with an adhesive to obtain a PET / KPET / PE composite film material;

[0036] The adhesive is ethyl acetate solvent-based polyurethane adhesive.

[0037] 3) Slitting ...

Embodiment 2

[0041] 1) Printing process: Print a single-color pattern on the surface of the PET film through a multi-color gravure printing roller, and then dry it to remove the ethanol solvent in the printing ink and solidify the ink.

[0042] 2) Composite process: First, apply a layer of adhesive on the printed side of the PET film with a screen printing method, and then dry the PET film coated with the adhesive at 75°C for 48h; secondly, at 60°C , composite the KPET film material with the side of the above PET film material coated with adhesive;

[0043] Again, apply a layer of adhesive on the other side of the above PET film by screen printing, and dry the PET film coated with adhesive at 75°C for 48h; then, at 60°C, put the PE film with the The side of the PET film material coated with adhesive is compounded to obtain a PET / KPET / PE composite film material;

[0044] The adhesive is an ethanol solvent-based polyurethane adhesive.

[0045] 3) Slitting process: the wide-width composite ...

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 a candy wrapping capable of reducing oxygen permeability and a preparation method thereof. The candy wrapping comprises three layers of membrane materials, which are respectively made from PET (Polyethylene Terephthalate), KPET (Kaolin Polyethylene Terephthalate) and PE (Poly Ethylene). According to the invention, through the blocking wrapping of the three layers of materials, the oxygen permeability of the candy wrapping material can be greatly reduced, and the blocking performance can be improved, so that a goal of prolonging shelf lives of nut candies is achieved. Data acquired through testing shows that oxygen permeability of the candy wrapping disclosed by the invention can be controlled below 6.

Description

technical field [0001] The invention relates to candy packaging with reduced oxygen permeability and a preparation method thereof, belonging to the field of candy packaging. Background technique [0002] As a popular food, candy is deeply loved by consumers and has maintained a rapid development momentum. There are many types of candies, but the main ingredients are granulated sugar, maltose, milk powder, cream, etc., and some are added with essence, edible gum or starch. [0003] The protective function of candy packaging is related to the quality of candies. Due to the large differences in the composition of candies themselves, the selection requirements for packaging materials are also different for different types of candies. For example, candies with low water content tend to absorb moisture and cause the product to swell and return to sand; candies with high water content are prone to shrinkage and mildew, and starch, cream, etc. are prone to oxidation and deteriorati...

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 Patents(China)
IPC IPC(8): B32B27/32B32B27/36B32B37/12B65D65/40B65H35/02B31B1/64B31B50/64
Inventor 王国军梁镖窦晓燕程与俭郭永红龚爱萍
Owner SHANGHAI GUANSHENGYUAN FOOD
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