Switzerland-based Bluesign Technologies has revealed plans to publish threshold limits for chemical substances in finished chemical products like auxiliaries or dyes.
The firm will launch Bluesign System Black Limits (BSBL) on 1 July and says the move is different from the MRSL approach.
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“Unlike MRSL, the BSBL is not intended to be sent out to the supply chain for the purpose of obtaining a less substantial and conclusive compliance declaration from the supply chain maze,” Bluesign explains. “Rather, its main purpose is to manage hazardous substances in finished chemical products. When limits are publicly available, transparency increases. With our Input Stream Management that includes chemical assessment and management – of which the BSBL is just one building block – Bluesign is a driving force behind a powerful, conscientious, and sustainable switch to safer chemicals in textile manufacturing.”
The chemical substances listed on the BSBL are an extract from the Bluesign Tool – introduced in 2002 – and include all substances from the publicly available Bluesign System Substance List (BSSL) for which a usage ban is defined. These include substances with carcinogenic, mutagenic, or reprotoxic properties, or those falling under the POPs regulation.
In addition, the BSBL contains monomers such as acrylamide, acrylonitrile, or ethylene oxide. All these substances could be contained in polymers and must be monitored by system partners in the chemical industry during the manufacture of polymers, including the widely-used fatty alcohol ethoxylates.
Textile industry relevant SVHC per the EU definition are mentioned in the BSBL directly with limits which are mostly lower than the EU threshold of 1000 ppm. For SVHCs which are not specifically listed, there is a fixed threshold limit of 1000 ppm.
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