Zipper fabric dyeing requirements
1. Azo dyes that do not contain carcinogenic aromatic amines under specific conditions or do not contain free carcinogenic aromatic amines in the dyes;
2, the dye itself has no carcinogenicity and sensitization;
3. The extractable heavy metals are below the limit value;
4. Formaldehyde content is below the limit value;
5. No environmental hormones;
6. Persistent organic pollutants without pesticides and chlorine-containing organic carriers;
7. Chemicals that do not pollute the environment;
8. Clean production and new technology are adopted for non-structural factors.
In addition to the above content, green dye is also shown in dyeing performance (including color light and brightness, dyeing rate, fixation rate, improvement rate, evenness, reproducibility, etc.), fastness, simplify application process, reduce energy consumption, water consumption, reduce printing and dyeing sewage and price more than the level of banned dyes and current non-banned dyes.
Generally speaking, the characteristics of the above dyes can be called "green dye".
Pull the head requirements, non lat environmental protection, the end of the work also requires non Lat environmental protection.
Copper chain should not contain nickel
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