01a/2003 - 2003
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.Back to list Request brochure