. Journal. 1ST. April 10, 1905. inimical manufacture of cellulose threads it itaut to recover all the copper dissolved (from the uprammonium ) in the alkaline forming <n& Tu accomplish this, it is proposed to utilise such : nlutions for the preliminary treatment of cotton or htm of cellulose, previous to their conversion into id silk. Cellulose thus treated is said to be readilj 8 in ammonia, the extra copper required being lo the solution ill the form of animoniacal copper -T. F. B. ting Vegetable Textiles by Means of Sodium Process of . E. Saint-Hilaire and E. de i. First Addition, dated
. Journal. 1ST. April 10, 1905. inimical manufacture of cellulose threads it itaut to recover all the copper dissolved (from the uprammonium ) in the alkaline forming <n& Tu accomplish this, it is proposed to utilise such : nlutions for the preliminary treatment of cotton or htm of cellulose, previous to their conversion into id silk. Cellulose thus treated is said to be readilj 8 in ammonia, the extra copper required being lo the solution ill the form of animoniacal copper -T. F. B. ting Vegetable Textiles by Means of Sodium Process of . E. Saint-Hilaire and E. de i. First Addition, dated March 28, 1905, toIn 346,831, Oct, 5, 1904. ices necessary for carrying out the processthe principal patent (see this J., 1905, 238),out and kept as two separate mixtures, ready-lying when required. One mixture consists of thea peroxide and boric acid, and the other of the causticand alkali silicate, together with an absorbent earth,ic a kieselguhr.—T. F. B. Bleaching • Proi I. i 353,113, i lull. All- the operations of bleaching are earned out in a singleapparatus, consisting of several units, one of which isshown in the accompanying diagram. The fabric passesover roller 1 and between rollers 2 and .{, and thenover roller 0 and down into tank /;, which contains tin-necessary liquid ; a certain amount of the fabric is allowedto hang slack in the tank so as to permit sufficient material leaving the tank again passes over roller 1,and thence between rollers 2 and :i. and 4 and 5, when n issqueezed ; it now passes over roller 7 and down into asmall receptacle /, in which a length is allowed to go shirk,ill order that, if one of the units has to be stopped for ashort time, the whole apparatus need not bo stopped. [—T. F. B. Hants • Preparing Dried for Bleaching and Dyeing. Seibt and Becker. First Addition, dated April 7. 1905,to Fr. Pat. 349,323, Dec. 21, 1904 (this J., 1905, 071). When the alkaline substances, , alkali carbonates,mentioned in the main
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882
