[EN] COLORING AGENTS NATURALISED WITH THE 6'-DEOXY-6'-(PIPERAZINYL)LACTOSE MOIETY<br/>[FR] COLORANTS RENDUS À L'ÉTAT NATUREL AU MOYEN DE LA FRACTION 6'-DÉSOXY-6'-(PIPÉRAZINYL)LACTOSE
申请人:UNIV FIRENZE
公开号:WO2014177528A1
公开(公告)日:2014-11-06
The present application refers to colouring products of formula (I) soluble in water at room temperature. Here a piperazine unity is inserted, bonded directly to the saccharidic unity. This moiety afford to the final glycoconjugated colorants some very advantageous characteristics for dyeing leather, textiles, wood and hairs.
The Application describes disperse dyes soluble in water of general formula (I)
D-L-Sn (I)
wherein:
D is a disperse dye insoluble in water
L is a linker
S is a sugar
n is comprised between 2 and 4
that are able to dye in an homogeneous way natural fibres and textiles and also textile materials including different fibres, and have high biodegradability through digestion by micro organisms, that found in the molecule itself a useful nourishment for their survival and proliferation; processes for the preparation of the above said dyes and their use are also described.