dye stuff composition containing a dye cake and a sulphonated or sulphomethylated lignin dispersant

摘要

The dyestuff composition comprises a dye cake and a lignin dispersant. The dye cake is either a disperse dye or a vat dye and the lignin dispersant is either sulphonated lignin or sulphomethylated lignin. The lignin dispersant has a heat stability of no greater than 50 bar oC, a polydispersity value of less than 5 and is essentially free of molecules below a molecular weight of 3,000. Addition to 336267