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

Environment-friendly and degradable thermal insulation food packaging bag

A packaging bag and food technology, applied in the field of new materials, can solve the problems of weakened heat insulation effect of packaging bags and peeling off of heat insulation coating, and achieve excellent heat insulation effect, avoid softening deformation, and good biodegradability

Active Publication Date: 2020-02-14
安徽天路新材料股份有限公司
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN2014104285151 discloses a method for making a metal-zinc oxide nanocomposite heat-insulating packaging film. The polyethylene plastic film is dipped in a composite sol composed of aluminum sol and silver-zinc oxide sol, and coated on the surface of the polyethylene plastic film. In this way, a film with excellent heat insulation effect can be obtained, but the biggest problem with this heat insulation film is that during the transportation process, the collision and friction between the packaging bags will easily cause the heat insulation coating to fall off, resulting in the weakening of the heat insulation effect of the packaging bag

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
  • Environment-friendly and degradable thermal insulation food packaging bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] An environmentally friendly and degradable heat-insulating food packaging bag, the specific preparation method is as follows:

[0024] 1) Mix ethyl orthosilicate, absolute ethanol, deionized water and concentrated hydrochloric acid according to a certain ratio of substances, stir at a high speed of 800r / min for 2h, then add trimethylchlorosilane and February Dibutyltin silicate, under the condition of 30°C, stirred and reacted at a speed of 150r / min for 3h, and then stood still for 40h to obtain a modified silica sol;

[0025] 2) Mix butyl titanate, triethanolamine and absolute ethanol according to a certain ratio of substances and stir evenly, then add the mixed solution composed of absolute ethanol and deionized water dropwise, and stir at 700r / min for 2h, Then add it to the modified silica sol, stir for 3 hours at a rotating speed of 150r / min, and let it stand for 40 hours to obtain a composite sol;

[0026]3) Pour the composite sol into a high-pressure spray gun, s...

Embodiment 2

[0036] An environmentally friendly and degradable heat-insulating food packaging bag, the specific preparation method is as follows:

[0037] 1) Mix ethyl orthosilicate, absolute ethanol, deionized water and concentrated hydrochloric acid according to a certain ratio of substances, stir at a high speed of 900r / min for 1.5h, then add trimethylchlorosilane and dichlorosilane Dibutyltin lauricate was stirred and reacted at a speed of 180r / min for 2.5h at 35°C, and then left to stand for 45h to obtain a modified silica sol;

[0038] 2) Mix butyl titanate, triethanolamine and absolute ethanol according to a certain ratio of substances and stir evenly, then add the mixed solution composed of absolute ethanol and deionized water dropwise, and stir at 800r / min for 1.5h , then added to the modified silica sol, stirred for 2.5 hours at a rotational speed of 200r / min, and left to stand for 42 hours to obtain a composite sol;

[0039] 3) Pour the composite sol into a high-pressure spray ...

Embodiment 3

[0049] An environmentally friendly and degradable heat-insulating food packaging bag, the specific preparation method is as follows:

[0050] 1) Mix ethyl orthosilicate, absolute ethanol, deionized water and concentrated hydrochloric acid according to a certain ratio of substances, stir at a high speed of 1100r / min for 1h, then add trimethylchlorosilane and February Dibutyltin silicate, under the condition of 40°C, stirred and reacted at a speed of 200r / min for 2h, and then stood still for 50h to obtain a modified silica sol;

[0051] 2) Mix and stir butyl titanate, triethanolamine and absolute ethanol according to a certain ratio of substances evenly, then add the mixed solution composed of absolute ethanol and deionized water dropwise, and stir at 1000r / min for 1h, Then add it to the modified silica sol, stir for 2 hours at a rotating speed of 250r / min, and let it stand for 45 hours to obtain a composite sol;

[0052] 3) Pour the composite sol into a high-pressure spray gun...

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 an environment-friendly and degradable thermal insulation food packaging bag. A preparation method comprises the following steps that (1) a modified silica sol is prepared; (2)a prepared titanium dioxide sol is added to the modified silica sol to obtain a composite sol; (3) the composite sol is sprayed on the surface of a substrate, after drying, cyclic heat treatment is performed, and a coating is removed after cooling and pulverized and ground to obtain composite powder; (4) sodium periodate is added into a sodium alginate solution, and a light avoiding reaction is performed to obtain modified sodium alginate; and (5) polyvinyl alcohol is dissolved and then added with the modified sodium alginate for reaction, an obtained product and the composite powder are added into molten polyethylene, then citric acid, calcium stearate and talc are added, and processing is performed to obtain the required packaging bag. The food packaging bag has an excellent thermal insulation effect, can effectively avoid softening and deformation of candy, has good biodegradability, can achieve complete degradation, meets the environmental protection requirements and is easy to popularize and apply.

Description

technical field [0001] The invention belongs to the technical field of new materials, and in particular relates to an environmentally friendly and degradable heat-insulating food packaging bag. Background technique [0002] The food industry is one of the main pillars of the development of the national economy, and with the rapid development of the food industry, food without added preservatives has become the most popular type in the current food industry. This type of product solves the hidden dangers of food additives that people worry about. However, what follows is the problem of how to effectively preserve food during packaging, transportation and storage. [0003] Food packaging is an important part of food commodities. Food packaging bags are used to protect food and prevent damage from biological, chemical, and physical external factors during the circulation of food from the factory to consumers. It can also have The function of maintaining the stable quality of t...

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): C08L23/06C08L29/04C08L5/04C08K13/06C08K9/06C08K3/36C08K3/34C08K5/098C08K5/092C08J5/18C08B37/04B65D65/46
CPCC08J5/18C08B37/0084B65D65/466C08J2323/06C08J2429/04C08J2405/04C08J2400/16C08K13/06C08K9/06C08K3/36C08K3/34C08K5/098C08K5/092Y02W90/10Y02A40/90
Inventor 独少培
Owner 安徽天路新材料股份有限公司
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