RESTRICTED SUBSTANCES
The Issue
It is extremely important to continuously monitor and control the content of Restricted Substances in Acid Black 210 products. There are literally hundreds of restricted substances which can be found in the various restricted substance lists published by governments, brands and associations around the world. Whereas it is always possible that any restricted substance could appear in a dyestuff due to contamination, there are only a few select groups of substances which run a higher risk of being present, especially in poor quality dyestuffs, and therefore they need to be carefully controlled.
The Causes
The main cause of restricted substances appearing in dyestuffs is poor manufacturing practices. Producers who do not control their incoming raw materials and intermediates, who synthesize with poor control over reaction conditions, who save costs on purification steps and who use contaminated solvents due to excessive recycling, are likely to offer products with significant restricted substance issues.
The Consequences
The consequences for tanners processing leathers with dyes which contain restricted substances can be very serious. Claims from downstream customers can be very large and difficult to handle. Loss of reputation can also have a serious impact on future orders ands ongoing business. Your business can collapse like a house of cards. It is much better to know that the restricted substances are being controlled and to avoid sleepless nights.
The Solution
Rockdale sources only from high quality manufacturers in order to minimize the risk of Restricted Substances appearing in the products. However, Rockdale also runs and monitors regular testing programs to ensure that the restricted substance contents stay within acceptable limits. Rockdale controls the high risk restricted substances on a routine basis but will also control other, specific restricted substances if desired by a client.
