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Wpływ budowy chemicznej dwufunkcyjnych barwników reaktywnych na ich właściwości barwiarskie

Matyjas-Zgondek E.

Zeszyty Naukowe. Włókiennictwo / Politechnika Łódzka

2005

z. 61

71-84

Praca dotyczy badań wpływu rodzaju diaminy podwajającej cząsteczką barwnika szeregu dwu- i czterofunkcyjnych czerwieni reaktywnych, pochodnych kwasu 1-amino-8-hydroksynaftaleno-3,6-disulfonowego (kwas H), na ich właściwości fizyko-chemiczne oraz aplikacyjno-użytkowe.

Dissertation concerns researches on influences of diamine doubled the dye molecule of several di- and tetrafunctional reactive red dyes based on 1-amine-8-hydroxynephthalene-3,6-disulphonic acid (H acid) on their physic-chemistry and application characteristic. The investigations showed that substantivity of the dyes resulted from structure of whole dye molecule has significant influences on the degree of dye exhaustion and the fixation yield. The presence in the dye molecule four reactive groups increases the fixation ratio. The presence of the reactive groups differed from reactivity widens range of optimal temperatures and pH of the dyebath.

Novel reactive red dyes

Matyjas E., Rybicki E.

Autex Research Journal

2003

Vol. 3, no. 2

90--95

Dyes with two monochlorotriazine or with two monochlorotriazine and two vinylsulphone reactive groups have been investigated for establishing an enhancement of the dyeability of cotton fabrics. The effect of the diamine bridge linking two chromophore systems on the degree of dye exhaustion from the dyebath and dye bonding with the cellulose fibre was examined. The excellent water solubility of these dyes make them useful in the exhaustion method of dyeing. The kind of diamine used as a bridging group has a significant influence on exhaustion and fixation values. The application of diamine, which assures the chemically linear structure of the dye, affects the increase in the amount of the dye fixed on the fibres. Apart from the derivatives of ethylene-1,2-diamine and phenylene-1,2-diamine, the remaining dyes are characterised by a very high degree of dye exhaustion from the dyebath. The dyes examined can be successfully used for dyeing cellulose fibres by the exhaustion process.