METHOD OF WHITENING TEXTILE MATERIAL OF ANIMAL-ORIGIN FIBERS

textile industry. SUBSTANCE: invention relates to chemical technology of whitening textile material of wool and real silk fibers. Material is impregnated at pH 2- 3 and 45-50 C with aqueous solution of bleaching composition containing hydrogen peroxide, hydroxyethylidenediphosphonic acid-based compo...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BONDARENKO V.I, STULOV V.S, KOVAL'CHUK L.S, AKULOVA L.K, ALEKSEEV E.E, AFTAEVA N.S
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	BLEACHING LEATHER OR FURS DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS,YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR LAUNDERING TEXTILES TREATMENT OF TEXTILES OR THE LIKE
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Beschreibung
Zusammenfassung:	textile industry. SUBSTANCE: invention relates to chemical technology of whitening textile material of wool and real silk fibers. Material is impregnated at pH 2- 3 and 45-50 C with aqueous solution of bleaching composition containing hydrogen peroxide, hydroxyethylidenediphosphonic acid-based composition, sulfamic acid, isopropyl alcohol, nonionic wetting agent based on oxyethylated fatty alcohols, and optical bleacher for acidic media, after which material is squeezed, held in closed space during 18-26 h, and washed. EFFECT: improved quality of whitening due to assured undamaged state of fibers. 2 tbl, 5 ex