Transfer printing process with naphtholactam dyes

Details Transfer printing process with naphtholactam dyes Transfer printing process with naphtholactam dyes

1978-10-18

1980-05-20

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Diffusion transfer dyeing process, transfer sheet and product

160 20, 160 22, 2602393R, D06P 370, D06P 500

Patent

active

042037220

ABSTRACT:
Acid-modified fibre materials may be dyed in brilliant color shades in accordance with the transfer printing principle if dyestuffs of the formula ##STR1## are used in which A is a residue of the formula ##STR2## wherein R.sub.1, R.sub.3, R.sub.4, R.sub.6 -R.sub.9 are H or lower alkyl, R and R.sub.2 are lower alkyl and R.sub.5 is phenyl.
The resulting transfer prints are distinguished by good fastness to light, wet processing and rubbing.

REFERENCES:
patent: 3399191 (1968-08-01), Brack
patent: 3969071 (1976-07-01), Hugelin
patent: 3999939 (1976-12-01), Psaar
patent: 4000141 (1976-12-01), Kuhlthau
patent: 4040779 (1977-08-01), Loew et al.
Holland G. and Litherland, A., J. Soc. Dyers and Colourists, 1971, 87, (No.12), pp. 488-495. _
Venkataraman, K, "The Chemistry of Synthetic Dyes,"vol. VIII, (Academic Press), 1978, pp. 191-220.

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