592

DYEING AND CALICO PRINTING.

Style Produced by Ltghtfoot’s Patent Process.

through this solution at the rate of 25 yards per minute. After this thepieces are winced in a pit of cold water fitted with a reel about 4 feet abovethe surface. By this process the indigotin attached to the fibre is renderedblue. If the green mixture has been printed on the pieces are next passedinto a solution of bichrome containing 1 oz. of bichromate of potash per gal. ofwater, at ioo° F. for five minutes, when the goods are washed. The piecesare next submitted to “ second dunging ” for fifteen to twelve minutes, in abeck containing cow-dung and water, at ioo° F. They are then washed inwater, and dyed with madder, munjeet, flower of madder, garancin, extra#of madder, cochineal, mixtures of garancin with sumac and bark. Thegrounds are then cleared in the ordinary manner, preferably with chloride oflime as applied to garancin colours.

The above and following patterns, which we owe to the courtesy ofMessrs. Grafton and Co., are produced by Lightfoot’s patent process.

Style Produced by Lightfoot’s Patent Process.