Page:Paper and Its Uses.djvu/173

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to light of colouring matters, 103 Featherweight paper, 45, 64, 81 — — durability of, 45, 64 Fibre composition, examination of, 106 Fibres, bamboo, 110 — cellulose in, 61 — classification of, 64 — cotton, 4, 61, 108 — esparto, 5, 62, 110 — flax, 62 — hemp, 4, 109 — jute, 5, 109 — linen, 4, 109 — manilla, 5, 109 — microscopical examination of, 107 — straw, 5, 109 — wood, 5, 62, 1 10 Filling, 6 Filter papers, manufacture of, 51 Finish, machine, 25 Finish of paper, testing, 101 Finishing paper, 28 Flax fibres, 62 Flint glazed papers, 32, 49 Fluff from papers, 75 Folding machine, 101 — tests, 101 Fourdrinier machine, 18 Friction glazing, 31

papers, 55 — non-curling, 55

, 10, 12 Hand- and machine-made papers, distinguishing between, 85, 86 — — mould-made papers, distinguishing between, 87 — — — and machine-made papers, comparison between, 87 Hand-made papers, 14 — printings, 44 Hemp fibres, 4, 109 — microscopical examination of, 109 Hollander, 9

art paper, 47 — — loading in, 20 Impression paper, 52 Index cards, characteristics of, 58 — table of sizes and methods of cutting, 140 — — prices, 141 Ink for coated papers, 75 Insides, 30, 33 Iodine solution, 108 Ivory boards, manufacture of, 35

paper, 80 Jute fibres, 5, 109 — microscopical examination of, 109

papers, 56 — — weights and prices, 142

dandy roll, 23 Leather boards, manufacture of, 36 Ledger papers, characteristics of, 39 Leunig paper-testing machine, 98 Letterpress printers, stock papers for, 91 Linen fibres, 4, 109 — — microscopical examination of, 109 Lithographers, stock papers for, 93 Litho. papers, 46, 82 stretching of, 46, 71 Loading, 6 — amount of, permissible in printings, 26, 64 — — writings, 20, 64 — — present in imitation art papers, 20 — china clay as, 20 — testing for, 105 Loan papers, 39 Loft drying, 17 Loss of strength in papers, 64

finish (M.F.), 25, 30 — made papers, 18 — — writing papers, 30 — — — tub sizing, 30 Manilla fibres, 5, 109 — microscopical examination of, 1 06 Manufacture of art paper, 48 — of blotting paper, 51 — of Bristol boards, 36 — of duplex boards, 35 — of filter paper, 51 — of ivory boards, 35 — of millboards, 36 — of pasteboards, 36