 | 1874 - 634 páginas
...containing a little ammonia. Or it may be made by immersing the same kind of paper for a few seconds in sulphuric acid, diluted with half to a quarter of its bulk of water, the mixture having been allowed to cool before immersing the paper, and afterwards washing in ammoniacal... | |
 | Arnold James Cooley - 1880 - 1054 páginas
...and afterwards in water containing a little ammonia. 2. (WE Gaine, Patent 1S57.) Plunge unsized paper for a few seconds into sulphuric acid diluted with half to a quarter its bulk of water (this solution being of the same temperature as the air), and aftervards wash with... | |
 | Alexander Watt (F. R. S. A.) - 1890 - 370 páginas
...just enough to smooth slightly. 1'842, and afterwards in water containing a little ammonia. By Game's process (1857) unsized 'paper is plunged for a few...added to the water), and the solution allowed to cool unt1l of the same temperature as the air. The paper is afterwards washed with weak ammonia. This process,... | |
 | Arnold James Cooley - 1892 - 942 páginas
...and afterwards in water containing a little ammonia. 2. (WE Gaine, Patent 1857.) Plunge unsized paper for a few seconds into sulphuric acid diluted with half to a quarter its bulk of water (this solution being »f the same temperature as the air), and afterwards wash with... | |
 | Gardner Dexter Hiscox - 1914 - 818 páginas
...specific gravity, 1.S44, and afterwards in water containing a little ammonia. II. — Plunge unsized paper for a few seconds into sulphuric acid diluted with half to a quarter its bulk of water (this solution being of the same temperature as the air), and afterwards wash with... | |
 | Gardner Dexter Hiscox - 1924 - 872 páginas
...specific gravity, 1.842, and afterwards in water containing a little ammonia. II. — Plunge unsized paper for a few seconds into sulphuric acid diluted with half to a quarter its bulk of water (this solution being of the same temperature as the air), and afterwards wash with... | |
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... of the same temperature as the air. The paper is afterwards washed with weak ammonia. This process, which has been extensively worked by Messrs. De la Rue and Co., produces a far better material than the foregoing. Mill and Card-board. — In the... 