The treatment of paper for special purposes : a practical introduction to the preparation of paper products for a great variety of purposes such as parchment paper, transfer papers, preservative papers, grained transfer papers, fireproof and antifalsification papers, polishing papers, tracing and copying papers, chalk and litho transfer papers, leather papers, luminous papers, tortoiseshell and ivory papers, metal papers, coloured papers, etc. etc., and paper articles (1907)
Andés, Louis Edgar, 1848-1925 · London : Scott, Greenwood & Son ; New York : D. Van Nostrand · leaf 256
232 Treatment of Paper for Special Purposes loss being starch. To allow for the dissolved mineral matters in paper free from loading ingredients, yy of the weight of the resin may be deducted. Some papers are acid or contain free chlorine, and in either case turn brittle and perish. Since litmus is… … Fig. 48.— Jute fibre ; l with contracted lumen ; e ends of fibres. which will give a deep rose-red in presence of 0 01 grm. of free acid per litre. Chlorine is detected in the extract by the cloudy precipitate given by silver nitrate (1 per cent, solution). Free chlorine is revealed by the blue to…
Paper · Papermaking
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