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01a/2003 - 2003

PES is often blended with elastane.

Even after conventional afterclearing such articles still exhibit unsatisfactory fastness properties in medium and deep shades.

This is caused by the specific dye absorption capacity of the elastane-portion, i.e. the elastane fibre absorbs the disperse dyestuff which is only partly removed by conventional afterclearing and gradually released in later washing processes.

®RUCORIT RAZ, however, contains a component that carries the reducing agent deep into the elastane fibre during afterclearing with acidic pH - i.e. gentle conditions for the EL-portion - and thus ensures full clearing of both EL- and PES-portion.

®RUCORIT RAZ has the same advantages in a cooled dye bath as ®RUCORIT RAL.

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