The colour printing of carpet yarns; a useful manual for colour-chemists and textile printers . Fig. 15 shows the corroding eftect of an excess of mordant (tin crystals) onthe wool fibre. This fibre was rough and harsh to the Fig. 1G.—(a) shows wool fibre steamed with an acid mordant (oxalic), showingopening up of external scales, (h) represents wool fibre destroyed by over-heating, revealing the fibrous nature of the interior of the wool fibre. MORDANTS IN STEAMING. Ill Colours composed of natural colouring matters, andhaving in their composition Acid Extract of Indigo, when•combined w
The colour printing of carpet yarns; a useful manual for colour-chemists and textile printers . Fig. 15 shows the corroding eftect of an excess of mordant (tin crystals) onthe wool fibre. This fibre was rough and harsh to the Fig. 1G.—(a) shows wool fibre steamed with an acid mordant (oxalic), showingopening up of external scales, (h) represents wool fibre destroyed by over-heating, revealing the fibrous nature of the interior of the wool fibre. MORDANTS IN STEAMING. Ill Colours composed of natural colouring matters, andhaving in their composition Acid Extract of Indigo, when•combined with a reducing mordant like tin crystals, re-quire to be aged after steaming, , left in a moist statefor twelve hours in order to develop the reduced indigo,and bring the colours back to their original hue. Withthe aniline colours, where no reducing agent is employed,this ageing process is unnecessary, and the steamed yarnsnaay be washed immediately after they have become cool. CHAPTEE XV. WASHING OF THE FEINTED AND STEAMED YAENS —HYDRO EXTRACTING. Washing of the Printed Yarn.—The printed yarns, afterbeing steamed, are hung to cool on a series of wooden pegs ;and, if left overnight, it is desirable to cover them
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Keywords: ., bo, bookcentury1900, bookdecade1900, bookidcolourprintingof00pate
