File:Dyeing- comprising the dyeing and bleaching of wool, silk, cotton, flax, hemp, china grass &c. (1888) (14593520227).jpg

Identifier: dyeingcomprising01sans (find matches)
Title: Dyeing: comprising the dyeing and bleaching of wool, silk, cotton, flax, hemp, china grass &c.
Year: 1888 (1880s)
Authors: Sansone, Antonio
Subjects: Dyes and dyeing
Publisher: Manchester, Heywood
Contributing Library: NCSU Libraries
Digitizing Sponsor: NCSU Libraries

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Text Appearing Before Image:
rpurine 4 b, but by increasing thequantity of mordant, as already stated, they dye strongerand more quickly. On cotton not mordanted.—Dye boiling for one hourwith :— 3 to 5 per cent, carbonate of potash.2^ per cent. soap.3 per cent, of the respective dye-staff. The use of water containing lime must be avoided, there-fore before dissolvinfj the colour, and before adding: thesoap or the respective mordant, remove the lime. Instead of carbonate of potash, the following mordantswill also do— 0—10 per cent, phosphate of soda,or 8—5 per cent, soda crystals,or 5 per cent, borax,or 0 per cent, silicate of soda,or 5 per cent, stannate of soda,or 5—10 per cent, glaubersalts.To improve the resisting properties of this colour to lightand air, pass the goods, after dyeing, through a cold bath,to which add 5 per cent, soda crystals. A brighter and deeper shade of red is obtained bygiving the goods after dyeing a second cold bath, towhich 5—10 per cent. Turkey red oil solutionis added.
Text Appearing After Image:
PRACTICAL PROCESSES. 75 This Turkey red oil solution is made up as follows—5 parts soda dissolvedin 75 ,, water, then 25 ,, Turkey red oil (neutral)added and the whole well mixed. After taking the goods through the above-mentioned coldwater bath (with from 5 to 10 per cent, of this Turkey redoil solution added), dry without further washing. If this Turkey red oil bath is applied, of course the sodabath mentioned above is left out. The dyebaths may be kept for further use, and for newlots of cotton proportionately less colour and mordanthave to be added to the original bath. Pink shades are got by adding very little, say one-tenthper cent, of dye-stuff. On silk a full red shade is dyed with : 5 per cent, phosphate of soda,or 5 per cent, olive oil soap,and 3 per cent dye-stuff,kept just under the boiling point for three-quarters ofan hour; and the baths may be retained for furtheruse. Half-silken goods are dyed same as silk, and a fine red isobtained in one bath. Half-woollen goods: I

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