The diffionltv of removing the printer's ink Tins hitherto rendered it impossible to use up old newspapers in Pinking new p"per.- A German invention described i* tho ** S-cient’fio .American** claims tohav* overcome tins difficulty. The paper pulp is first treated with n solution of the peroxides ‘of the alkalies and alkaline earths. By this treatment the preasy n«rt of lh*' ink ceases to hind the lampblack. Then by einuUifyinv pulp with gelatinous silica the latter is removed.
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https://paperspast.natlib.govt.nz/newspapers/NZTIM19100423.2.16.2
Bibliographic details
New Zealand Times, Volume XXXII, Issue 7110, 23 April 1910, Page 1
Word Count
77Page 1 Advertisements Column 2 New Zealand Times, Volume XXXII, Issue 7110, 23 April 1910, Page 1
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