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    Excessive azo dyes on sewing thread affect the export of European clothing

    Hits:Updated:2018-07-11 16:07:26【Print】

    On December 12, 2012, the Inspection and Quarantine Bureau of Nantong City, Jiangsu Province, after sampling and testing the surface materials and accessories that a company was about to produce for export, found that the sewing thread used the banned azo dye, 4-amino azo The benzene content is as high as 1734 mg/kg, far exceeding the 30 mg/kg specified in EU Directive 2002/61/EC. After the inspection and quarantine department reminded, the company adjusted the production plan in time and replaced the qualified clothing sewing thread, thus avoiding the loss caused by the quality hazard. It is understood that this is the second case of the ban on azo exceeded in the sewing thread in Nantong this year.

    Coincidentally, not long ago, a company in Jiangsu exported 10,000 windbreakers to the European Union. Because the polyester mesh cloth woven into the polyester sewing thread was found to contain banned azo dyes, it was returned. Another group of casual clothes exported to Germany was found to contain banned azo dyes due to the sewing thread embroidery pattern on the clothing. Not only did it encounter returns, but it was also claimed to claim more than RMB 400,000. A group of children's nylon jackets exported to the EU, because the sewing thread used for the products is not inspected according to the requirements, the product contains 69.9mg/kg of 4-aminoazobenzene in the gray sewing thread after the product is exported. Bankruptcy.

     To this end, the inspection and quarantine department reminds foreign trade units and export garment manufacturers that the clothing exported to the EU should not only be banned from banned azo dyes, but also banned from azo in sewing thread, embroidery thread, lace and other accessories. The control of dyes should not be neglected because of the small proportion of excipients used in clothing. In addition, the inspection of garment surface accessories should be checked in advance, and the quality hazards should be eliminated early in the limited production cycle to avoid the use of accessories. The entire batch of export clothing returns or claims.

    Background information: Azo dyes are a class of synthetic dyes widely used in textile and garment printing and dyeing processes for the dyeing and printing of a variety of natural and synthetic fibers. Studies have shown that under special conditions, banned azo dyes may cleave carcinogenic aromatic hydrocarbons, causing direct contact with human skin lesions, which can cause cancer in severe cases.

    The banned azo dye has become one of the most important quality control projects in the international textile and apparel trade due to its high risk, and it is also one of the most basic quality indicators of ecological textiles.

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