The dyeing of paper pulp; a practical treatise for the use of papermakers, paperstainers, students and others (1901)
Erfurt, Julius · London, Scott, Greenwood · leaf 110
ful colour forthe toning of white papers. Erythrine P ° dyes bright strong shades, and produces the cheapestBordeaux reds. Its affinity to vegetable fibres is a mi ystrong one. Mixed with auramine and saffranine red shades areobtained which cannot be produced as advantageouslyby any other method.… … 1 lb. Paper Scarlet P.(Pattern No. 19.) Soluble in hot water; not as fast to light as erythrineor cotton scarlet, but faster to alkalies. The colourexhausts well on mechanical wood and unbleached sul-phite pulp, producing a colourless backwater. 94 THE DYEING OF lAIT.i; PI LP. Saffranine PP .
Dyes and dyeing · Papermaking
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