PERIBLANC APP

PERIBLANC APP is an optical whitening agent with neutral shade for polyester, polyester blends and acetate fibres. PERIBLANC APP can be applied in discontinuous as well as continuous processes. It is very well suitable for the usage in bleaching liquors PERIBLANC APP provides the following fastness properties: fastness test norm change of whiteness light fastness (ISO 105-B02) 5 – 6 water fastness (ISO 105-E01) 5 wash fastness at 40 °C (ISO 105-C06 A1S) 5 wash fastness at 60 °C (ISO 105-C06 C1S) 5 wash fastness at 95 °C (ISO 105-C06 E1S) 4 – 5 nitrogen oxides fastness (ISO 105-G01) 5 sea water fastness (ISO 105-E02) 5 dry heat fastness (ISO 105-P01) 180 °C 5 210 °C 5 perspiration fastness (ISO 105-E04) acid 5 alkaline 5 The fastness properties may vary depending on the type of fabric, the kind of application and the quantity used of PERIBLANC APP. When using optical brighteners in general it must be noted that already minor traces of heavy metals lead to an impairment of the degree of whiteness. This can be avoided by adding a complexing agent such as PERIQUEST BSD.