Food tank inner coating thermal curing waterborne ecological paint as well as preparation method and construction method thereof

A heat-curing, food canning technology, applied in the direction of anti-corrosion coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problem of acid resistance, alkali resistance, anti-corrosion, anti-rust, anti-oxidation and other functions that are not strong and cannot fully meet environmental protection , There are no safety and zero emission issues, and it can be used in a wide range of applications, with excellent sulfur resistance and good compatibility.

Inactive Publication Date: 2019-10-01
SHENZHEN NENGYU TECH CO LTD
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these coatings have low technical content, contain toxic substances, do not have real safety and zero emissions, and are not strong in acid resistance, alkali resistance, anti-corrosion, anti-rust, anti-oxidation, etc., and cannot fully meet the standards of environmental protection standards and food contact requirements.

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
  • Food tank inner coating thermal curing waterborne ecological paint as well as preparation method and construction method thereof
  • Food tank inner coating thermal curing waterborne ecological paint as well as preparation method and construction method thereof
  • Food tank inner coating thermal curing waterborne ecological paint as well as preparation method and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0055] A preparation method for coating a food can with a thermosetting water-based ecological coating, comprising the following steps:

[0056] Material preparation step: take each raw material respectively according to the formula ratio, and set aside;

[0057] Stirring step: Add the water-based film-forming resin, water-based amino resin, water-soluble solvent, deionized water, defoamer, and dispersant in the formula quantity into the disperser in sequence, and after stirring evenly, a stirring mixture is obtained; the stirring speed is 1000- 1200 rpm, stirring time is 30 minutes;

[0058] Grinding step: adding the stirring mixture into a grinder for grinding, and grinding for 3 to 5 times until the particle size reaches 50-100 nanometers to obtain the grinding mixture;

[0059] Dispersion step: add the antirust agent, adhesion promoter, metal antioxidant, film-forming aid, wetting agent, leveling agent, anti-cratering agent, and thickener to the grinding mixture in sequen...

Embodiment 1

[0063] A thermosetting water-based ecological coating for food cans, prepared from the following components by weight percentage: 65% water-based film-forming resin, 9% water-based amino resin, 5% water-based solvent, 0.3% dispersant, 0.1% rust inhibitor, 5% adhesion promoter, 0.3% metal antioxidant, 2% film-forming aid, 0.5% wetting aid, 0.3% leveling aid, 0.5% defoaming aid, anti-cratering 0.5% of auxiliary agent, 0.5% of thickener, and the rest of deionized water.

[0064] A preparation method for coating a food can with a thermosetting water-based ecological coating, comprising the following steps:

[0065] Material preparation step: take each raw material respectively according to the formula ratio, and set aside;

[0066] Stirring step: Add the water-based film-forming resin, water-based amino resin, water-soluble solvent, deionized water, defoamer, and dispersant in the formula quantity into the disperser in sequence, and after stirring evenly, a stirring mixture is ob...

Embodiment 2

[0070] A thermosetting water-based ecological coating for food cans, prepared from the following components by weight percentage: 60% water-based film-forming resin, 8% water-based amino resin, 7% water-based solvent, 0.3% dispersant, 0.1% rust inhibitor, 5% adhesion promoter, 0.3% metal antioxidant, 2% film-forming aid, 0.5% wetting aid, 0.5% leveling aid, 0.5% defoaming aid, anti-cratering Auxiliary 0.5%, thickener 1%, the balance deionized water.

[0071] A preparation method for coating a food can with a thermosetting water-based ecological coating, comprising the following steps:

[0072] Material preparation step: take each raw material respectively according to the formula ratio, and set aside;

[0073] Stirring step: Add the water-based film-forming resin, water-based amino resin, water-soluble solvent, deionized water, defoamer, and dispersant in the formula quantity into the disperser in sequence, and after stirring evenly, a stirring mixture is obtained; the stirri...

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 food tank inner coating thermal curing waterborne ecological paint which is prepared from the following ingredients in percentage by weight: 50 to 80 percent of waterborne filmforming resin, 5 to 20 percent of waterborne amino resin, 5 to 10 percent of waterborne solvents, 0.1 to 3 percent of dispersing agents, 0.1 to 2 percent of anti-rust agents, 4 to 10 percent of adhesion promoters, 0.3 to 4 percent of metal antioxidants, 0.3 to 3 percent of coalescing agents, 0.5 to 1 percent of wetting auxiliary agents, 0.3 to 1 percent of leveling auxiliary agents, 0.5 to 1 percent of anti-foaming auxiliary agents, 0 to 3 percent of anti-cratering auxiliary agents, 0.01 to 5 percent of thickening agents and the balance deionized water. The invention also discloses a preparation method and a construction method of the food tank inner coating thermal curing waterborne ecological paint. The food tank inner coating thermal curing waterborne ecological paint provided by the invention does not contain toxic and harmful substances, and conforms to the highly environment-friendly and energy-saving characteristics required for human health; meanwhile, a film layer prepared from the paint has strong attachment force and adhesion performance; excellent sulfur tolerance, solvent resistant, acid resistant, alkali resistant, high-temperature resistant, anti-corrosion, anti-rust, anti-oxidization and anti-bending performance is realized; the separation of harmful substances of coated articles can be effectively prevented.

Description

technical field [0001] The invention relates to the technical field of food packaging materials, in particular to a heat-curing water-based ecological coating for internal coating of food cans suitable for food containers and packaging cans such as metal, glass, ceramics, and natural stone, and a preparation method and construction method thereof. Background technique [0002] At present, the coatings painted on the inside of food metal packaging cans are all benzene-based solvent-based coating products; in this coating product, the benzene-based solvent contains more than 100 substances that are harmful to human health. The skin and digestive tract are inhaled into the human body, leading to the elderly, children's resistance, decreased immunity, colds, skin allergies, cough, pharyngitis, chest tightness, dyspnea, headache, dizziness, nausea, vomiting, convulsions, blood pressure drop and even breathing and circulatory failure, neurasthenia syndrome, decreased hematopoietic...

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): C09D175/04C09D133/04C09D125/14C09D151/08C09D161/20C09D5/08B05D7/22B05D7/24
CPCB05D7/227B05D7/24C09D5/08C09D125/14C09D133/04C09D151/08C09D175/04C08L61/20
Inventor 潘卫方潘序晋潘序晧
Owner SHENZHEN NENGYU TECH CO LTD
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