Page:Paper and Its Uses.djvu/131

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some being quite plain, others covered with coloured or fancy papers.

Bright Enamel Papers.—Enamelled papers, coated on one side only, finished with a high polish produced by calendering and brushing. Used for labels for various purposes, the design printed in several colours and bronze.

Bristol Boards.—Fine boards for black and white drawings. Various boards are called "Bristol," but the name rightly applies to those boards made of fine rag paper throughout, hot pressing being the method employed for obtaining the high surface. They are manufactured with the utmost care, free from all defects. Stock sizes, foolscap, demy, medium, royal, and imperial, and as papers of these sizes are pasted, and the finished boards trimmed all round, the boards are slightly smaller than the sizes of the papers.

Browns.—Brown wrapping papers are made of various materials and in many qualities and substances. Rope browns, air-dried, cylinder-dried are three kinds, "rope" being properly made from old ropes, but some papers sold under the name have wood pulps in their composition. Browns are made on the Fourdrinier machine, either dried on cylinders as ordinary papers, or cut up and hung to become air-dried. Air-dried browns are much more flexible and more durable than cylinder-dried papers. Browns are usually sold by the cwt., prices ranging from 8s. 6d. to 22s. 6d. per cwt. Usual sizes are shown on page 142. See also Wrappings.

Butter Papers.—These are greaseproof papers used for wrapping butter and similar articles. Vegetable parchment papers are used, imitation parchments, and papers treated with a solution of albumen and salt. Butter papers are glazed or unglazed.

Cable Papers.—Also known as insulating papers, which better describes their purpose. These papers are made from various materials, such as manilla, jute, and sometimes all wood; some are unsized, but others are hard-sized. Strength is essential, as they are cut to narrow widths, from one-sixth of an inch upwards, wound round the individual wires which go to make up cables. The