Weaving; a practical guide to the mechanical construction, operation, and care of weaving machinery, and all details of the mechanical processes involved in weaving . duced from wheat, should be free from color,bad odors and acidity. When exposed in a damp place it quicklymildews ; it contains a large proportion of gluten. Potato Starch, or Farino, from the potato. It makes a stiffpaste. Maize, or Corn Flour, has great stiffening qualities; expen-sive, and requires additional softening. Rice, not much used for gray cloths; gives hard feeling andis expensive. Sago, from sago palm, gives very ha
Weaving; a practical guide to the mechanical construction, operation, and care of weaving machinery, and all details of the mechanical processes involved in weaving . duced from wheat, should be free from color,bad odors and acidity. When exposed in a damp place it quicklymildews ; it contains a large proportion of gluten. Potato Starch, or Farino, from the potato. It makes a stiffpaste. Maize, or Corn Flour, has great stiffening qualities; expen-sive, and requires additional softening. Rice, not much used for gray cloths; gives hard feeling andis expensive. Sago, from sago palm, gives very harsh feeling and requiresbut little to make size, though plenty of fatty matter to soften,particularly cocoanut oil, 1 ounce to 1 gallon of size. It soonbecomes watery. Tapioca has little starchy matter. Fatty Matter. Tallow. Good tallow is white. Should beused in the proportion of about 8 pounds to 1 sack of flour. Bone G-rease, cheapest, but has a tendency to become rancid. Cocoanut Oil, used principally in sago sizing ; becomes rancid. Bleached Palm Oil, next to tallow for valuable qualities; alsoused m sago sizing. Castor Oil, sometimes used with tallow. 58. WARP PREPARATION. 51 Waxes. Japan and American waxes are soft, brittle, fatty-substances. Paraffin Wax is not saponifiable by alkalies; that is, cannotafterwards be removed from the cloth during the bleaching process. Grlycerin gives a soft feeling to the cloth, especially whenweighted with China clay. The quantity used should be limited,as it becomes sticky and keeps the yarn moist. Dulcine, a mixture of glycerin, gum and Chinese wax. Irish Moss contains a large amount of vegetable mucilage. Soaps have a tendency to make the size lumpy. Mineral as weight givers. China Olay, produced by thedisintegration of feldspar; it is best when milk white. French Chalk, or /Silicate of Magnesia, has a tendency todiscolor. Sulphate of Magnesia, or Epsom Salts, the best cleanser,permeates the yarn; it also gives weight and should be p
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