Dyeing or printing olefin polymers
Номер патента: GB967307A
Опубликовано: 19-08-1964
Автор(ы):
Принадлежит: ACNA Chimica Organica SpA, Aziende Colori Nazionali Affini ACNA SpA
Опубликовано: 19-08-1964
Автор(ы):
Принадлежит: ACNA Chimica Organica SpA, Aziende Colori Nazionali Affini ACNA SpA
Реферат: Polyolefin material is dyed with vat dyes by impregnating the material with a dispersion of the vat dye or with the leuco form of the dye, the impregnation is followed by a heat treatment at 120 DEG C. or above, reduction of the non-leuco vat dye is then carried out, and the dyeing completed by oxidation and soaping at the boil. The oxidation and soaping may be carried out in the same bath. Materials specifically referred to are the polymers of ethylene, propylene and methylpentene-(1). Conventional levelling, dispersing and thickening agents may be used. The impregnation is preferably carried out at 10-60 DEG C. and the thermal treatment at 120-125 DEG C., hydrogen peroxide preferably being used as oxidising agent: Vat dyes of the anthraquinone, indigo, thio-indigo, carbazole, benzanthrone, and anthanthrone types are referred to.
Process for the pad-dyeing or printing of textile material of natural or synthetic polyamide fibers or mixtures thereof with other fibers with reactive dyestuffs
Номер патента: CA1186457A. Автор: Siegfried Glander,Franz Schon. Владелец: Hoechst AG. Дата публикации: 1985-05-07.