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Removal of Spots and Stains: Bleaching

To Size Straw Hats.-Beat up the white of an egg and apply to the hat after cleaning with a small camel'shair brush or a sponge. BLEACHING VEGETABLE AND ANI- MAL FIBERS Bleaching.-Bleaching is the process of treating materials in such a way as to whiten them. Bleaching is commonly applied to textile goods, as linen, cotton, wool, and silk; also to paper, pulp, straw, ivory, wax, and animal and vegetable oils. The operation of bleaching textile fabrics consists of two parts: first, removing dirt and other impurities and all foreign substances, and afterwards altering the natural coloring matter of the fabric by chemicals having specific bleaching properties. The preliminary operation of cleansing fabrics for bleaching is much the same as ordinary washing in the domestic laundry. It depends upon the action of alkaline lyes and certain acids to dissolve the resinous and fatty substances and other impurities that may either be natural or may be introduced into the fabrics in the process of manufacture.