The dyeing of paper pulp; a practical treatise for the use of papermakers, paperstainers, students and others by Erfurt Julius

Author:Erfurt, Julius
Language: eng
Format: epub, pdf
Tags: Dyes and dyeing, Papermaking
Publisher: London, Scott, Greenwood
Published: 1901-03-25T05:00:00+00:00

(Pattern No. 92.

Without tannin.

495 lb. = 75 per cent, unbleached sulphite wood. 33 lb. = 5 „ No. 23.

132 lb. = 20 ,, mechanical wood (pine).

DYED PATTERNS ON VARIOUS PULP MIXTURES. 139

32 lb. 13 oz. logwood extract. 4 lb. 14f oz. copper sulphate. 8 lb. 12 oz. sodium bichromate. 6 lb. 3| oz. coal black. 2 lb. 1) oz. brilliant black B Then add : 10 lb. 15 oz. logwood extract. 10! oz - methyl violet 2 B. 5] oz. diamond green B. 10i oz. vesuvine extra. 14 oz. chrysoidine A. \ sized.

(Pattern No. 93.)

660 lb. = 100 per cent, unbleached sulphite wood. Decoct of 105 lb. sumac. 1 hour later: 26 lb. 4 oz. coal black.

P.S. —The coal black solution must be added to the beater slowly and through a sieve, and care should be taken that sufficient water has been used for the dissolving.

Three-quarter-sized.

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