Process for the dyeing of paper material

Details Process for the dyeing of paper material Process for the dyeing of paper material

1977-02-10

1978-05-16

Schofer, Joseph L.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 1W, 8177AB, 162162, D21H 146

Patent

active

040896471

ABSTRACT:
A process for the dyeing of paper material from an aqueous medium, comprising the use of at least one water-soluble dye of the formula ##STR1## wherein Py represents a pyridyl group of the formula ##STR2## R.sub.1 represents lower alkyl, substituted lower alkyl, allyl, or benzyl, R.sub.2 represents hydrogen, halogen, methyl or ethyl,

REFERENCES:
patent: 2695290 (1954-11-01), Finkelstein et al.
patent: 2906588 (1959-09-01), Brunkhorst et al.
patent: 3409626 (1968-11-01), Cavallito et al.
patent: 3653899 (1972-04-01), Haefner et al.
patent: 3832184 (1974-08-01), Sato et al.
patent: 3888850 (1975-06-01), Entschel et al.
Castle, L. N. et al., Journal of Organic Chemistry, vol. 24, (1959), pp. 1189-1192).
Allen, R. C. et al., Jour. of Med. Chem., vol. 13, No. 15, 1970, pp. 909-912.
Cavallito, C. J. et al., J. Med. Chem., vol. 13, No. 2, 1970, pp. 221-224.
Akkerman, A. M. et al., Recueil, 1954, pp. 629-647.

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