Connecticut western news., 1877-07-06
SCIENTIFIC.

Preparing Garments qcith Cotton aWGyps f0r DUeing.-In many dye works articles before being dyed are cleaned with soap, and then rinsed. Although this treatment cannot be pronounced irrational or bad, it is not to berecom- mended to every dyer. An inequality in the manner of rinsing the washed shades during dyeing. In dye works not provided with soft water other means are used in place of soap. The best agent for cleansing is carbonate of soda. A somewhat concentrated lye generally removes the greater part of the spots.
 To cleanse twenty garments for dye- ing, beck of the needfult size is filed with water at 155. Fah., in which 4 lbs. 6 ozs. of soda crystals are dissolved. In this the goods, well spread out, are allowed to steep for four or five hours. At the end of this time the garments upon very clean table close at hand. A strong and hot lye of soda is pre- pared in pail, and such parts as are spotted with grease, etc., are treated herewith, with the aid of a hard brush till they disappear. z V-y - B St 2
 To remove hardened spots of stearin, paraffin, tar, resin, etc., benZine (nOt benzoline) must be used. A rubber is steeped with it aud applied to the spot till it is completely removed. The rubber, thus used instead of the brush. is formed of piece. of woolen cloth rolled tightly up, and covered with 8 mall piece of cotton or linen. The whole must be large enough to be grasped firmly in the hand.
 In we'll organized dye houses no gar ment is washed in rivers, but In pro- perly arranged washing machines.
 Green on garments with cotton warps Gil lbs.): MOrdant for an hour at boil, with 3 lbs. 3 ozs. alum, 84 ozs. tartar, Al ozs. sulphuric acid, 64 Ozs. extract of indigo, 3 lbs. 3 ozs. fustic. Put it then in fresh beck, containing 174 ozs. alum, and the same weight of fustic. fresh. beck, with 3 lbs. 3 ozs. sumac. Leave 1t in this latter beck for two hours, turning it from time to time. Lift, wiring, and dye in a fresh cold beck, with methyl green. For deeper shades extract of logwood may be added.5 n f| = -..t
 Brown on garments with cotton warps (11 lbs.): Make decoction of 9 lbs. oZs. catechu in water; decant the clear liquid, and add to it the solution of 5 oZs. bluestone. Enter the garment, spread out, and steep for an hour. Lift, press, and enter in a boiling beck, made up in the proportion of lb. 10 ozs. argol, and 174 ozs. bichromate of potash. Boil for half an hour, then lift, and dye for the same length of time with 3 lbs. 3 ozs. peachwood, and I'll ozs- fustic. After boiling for half an hour, lift, and examine if the shade is as required. If not,. it ss may be reached by an addition of peachwood, fustic, or logwood, keeping up the boil. If the cotton is not of the same shade as the wool, B to Al ozs; of alum is added to the dye beck. and the goods are e-entered, but not boiled.
 Black on garments with cotton warps Gil lbs.): Dissolve 89 ozs. solid extract of haywood in boiling water, and boil the, goods in this. Lift and boil for 45 minutes in fresh beck, made up with g. ozs. bluestone, and 12 ozs. copperas. Return to the first logwood beck, to which 54 to 7 ozs. of soda ash has been added. If the color is not full enough, add little more extract of logwoOd. sSadden with 54 to B ozs. copperas.- Ieinturier Prat,Que. 4 >>S Er& I, . ,z-