A coating for high-sulfur-resistant protein beverage cans and preparation method thereof

A technology of protein drink and high sulfur resistance, applied in the field of coatings, can solve problems such as aging, yellowing, and unstable anti-sulfur performance, and achieve the effects of good performance stability, short production cycle and long service life

Active Publication Date: 2022-04-26
SUZHOU SANXIN PACKAGING MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the coating will yellow and age during long-term use, making the anti-sulfur performance unstable

Method used

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  • A coating for high-sulfur-resistant protein beverage cans and preparation method thereof

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[0021] Another object of the present invention is to provide a method for preparing a high-sulfur-resistant protein beverage can coating, comprising the following steps: mixing the components by weight, and performing anchor stirring at 60-80 rpm for 30-50 Minutes, dispersed and filtered, then packaged, the grade of the filter element ≤ 5 μm, to obtain a coating for beverage cans with high anti-sulfur protein.

[0022] Due to the application of the above-mentioned technical solutions, the present invention has the following advantages compared with the prior art: the present invention provides a coating for a high-sulfur-resistant protein beverage can, which mainly uses a conventional high-equivalent epoxy resin, combined with a highly flexible phenolic resin, and then Supplemented with wax and a small amount of additives, it can significantly improve the sulfur resistance of the inner coating, especially the sulfur resistance of the processed part, and prevent the formation of...

Embodiment 1

[0025] Embodiment 1 provides a kind of coating for high anti-sulfur protein beverage can, it is characterized in that, comprises following each component by weight: 20 parts of bisphenol A type epoxy resins, 2 parts of tert-butylphenol phenolic resins, pigment phenolic resin 1 part, 10 parts of xylene, 2 parts of n-butanol, 6 parts of propylene glycol methyl ether acetate, 5 parts of ethylene glycol monobutyl ether, 10 parts of S100# aromatic hydrocarbon, 0.05 part of wax, and 0.01 part of leveling agent.

[0026] Described bisphenol A epoxy resin is the bisphenol A epoxy resin that the model that Shell Company produces is the bisphenol A epoxy resin of Epon1007.

[0027] The phenolic pigment includes the following components in parts by weight: 13 parts of QX-60 titanium complex, 20 parts of natural rosin, and 30 parts of p-tert-butylphenol novolac resin.

[0028] The wax comprises the following raw materials in parts by weight: 3 parts of polyethylene wax micropowder, 15 par...

Embodiment 2

[0032] Embodiment 2 provides a coating for high sulfur-resistant protein beverage cans, its formula and preparation method are basically the same as in Embodiment 1, the difference is that it includes the following components in parts by weight: bisphenol A epoxy resin 23 3 parts, 3 parts of tert-butylphenol phenolic resin, 1.5 parts of pigment phenolic resin, 15 parts of xylene, 4 parts of n-butanol, 8 parts of propylene glycol methyl ether acetate, 7 parts of ethylene glycol monobutyl ether, 13 parts of S100# aromatic hydrocarbon, wax 0.25 parts, 0.08 parts of leveling agent.

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Abstract

The invention discloses a coating for a high-sulfur-resistant protein beverage can, which comprises the following components in parts by weight: 20-30 parts of bisphenol A epoxy resin, 2-8 parts of tert-butylphenol phenolic resin, pigment 1‑3 parts of phenolic formaldehyde, 10‑25 parts of xylene, 2‑10 parts of n-butanol, 6‑15 parts of propylene glycol methyl ether acetate, 5‑20 parts of ethylene glycol monobutyl ether, 10‑20 parts of S100# aromatics, Wax 0.05-1 part, leveling agent 0.01-0.3 part. The invention also discloses a preparation method of the coating for the antisulfur protein beverage can. A coating for anti-sulfur protein beverage cans disclosed by the present invention mainly uses conventional high-equivalent epoxy resin, combined with high-flexibility phenolic resin, supplemented with wax and a small amount of additives, and can significantly improve the performance of the inner coating by comparison of anti-sulfur tests. Sulfur resistance, especially the sulfur resistance of the processed part, prevents the formation of sulfide black spots; the finished coating has high sulfur resistance, strong adhesion to the substrate, good performance stability, excellent mechanical properties, and long service life long.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a coating for beverage cans with high sulfur-resistant protein and a preparation method thereof. Background technique [0002] Protein is the basis of living matter and a nutrient that plays an important role in human health. Protein beverages, including vegetable protein beverages and animal protein beverages, have become an important way for people to obtain protein, with high protein titer, biological potency and protein net utilization rate. Protein drinks are one of the best ways for the human body to supplement protein, especially for the elderly, convalescent patients, pregnant and lactating women, dieters, athletes and bodybuilding enthusiasts, it is more scientific to take protein drinks. [0003] There is a huge market for protein beverages in China. Because of the special high-temperature sterilization process, these beverages are currently packaged in th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D161/06C09D191/06C09D193/04C09D123/06C09D7/47
CPCC09D163/00C09D7/47C08L2205/035C08L2205/025C08L61/06C08L91/06C08L93/04C08L23/06C08L67/00
Inventor 顾峻陈飞
Owner SUZHOU SANXIN PACKAGING MATERIAL TECH CO LTD
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