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ALPHABETICAL LIST OF PAPERS
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protective purposes. Usual size and weight: double crown 7 Ib. per ream of 500 sheets.
Tobacco Papers.—Papers used for packing small quantities of the cheaper tobaccos; with good printing surface. Substance and sizes, 28 to 30 Ib. demy.
Toilet Papers.—Very thin M.G. papers put up in packets of cut pieces, or in rolls with or without perforation.
Tracing Papers.—Thin papers specially treated with a coating consisting of a mixture of certain gums and turpentine. Other papers used for tracing are glazed imitation parchments. Used for tracing maps, plans, drawings, etc.
Transfer Papers.—Specially coated papers for transferring designs to lithographic printing surfaces. Opaque or transparent papers are used, according to the use of the paper, whether it is merely as a transfer paper or also as a tracing paper. The coating mixture is such as will readily strip from the paper when put down on stone and the back is damped, all the ink of the transfer being left on the stone.
Triplex Boards are made on a cylinder machine, three webs being brought together in the wet state, but rolled, dried, and finished as a single web.
Tube Papers.—Soft unsized papers, made with a good percentage of rag, for making tubes or spools on which the yarn for spinning machines is wound.
Typewriting Papers.—Strong bank papers of good appearance, unglazed, used for correspondence and other typewritten matter. The extra superfine qualities are all-rag, tub-sized; some of the lower grades, chemical wood, engine-sized.
Vegetable Parchment.—Another name for parchment or parchmented paper. See Parchment Paper.
Vellum Papers.—(1) Name applied to writing papers with a good writing surface, not so smooth as super-calendered papers, but nearer to the surface of a well-finished vellum. Usually vellum woves, although laid papers with vellum finish are supplied. (2) Thick, strong, fine papers, used for engravings. See Japanese Vellum.
Waterproof Papers for packing purposes are made by coating strong wrappings with tar or bitumen, and rolling
