Indigo
Indigo is the blue matter extracted from a plant Indigofera
tinctoria and other species, growing in Asia, South America and
Egypt. It reaches the market in a fine powder, which is insoluble in
water. There are two ways of dyeing with Indigo. It may be dissolved
in sulphuric acid or oil of vitriol, thereby making an indigo extract.
This process was discovered in 1740. It gives good blue colours but is
not very permanent, darker colours are more so than the paler. It does
not dye cotton or linen.
The other method is by the Indigo vat process which produces fast
colours but is complicated and difficult. In order to colour with
indigo it has to be deprived of its oxygen. The deoxidized indigo is
yellow and in this state penetrates the woollen fibre; the more
perfectly the indigo in a vat is deoxidized, the brighter and faster
will be the colour. For wool dyeing the vats are heated to a
temperature of 50 deg.C. Cotton and linen are generally dyed cold.
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Cotton Fabrics
=Albatross.= Cotton albatross cloth is a fabric made in imitation of a worsted fabric of the same name. It has a fleecy surface. The name is taken from the bird whose downy breast the finish of the fabric resembles. The warp is usually 28s cotton,... Drying
Following on the washing comes the final operation of the dyeing process, that of drying the dyed and washed goods. Now textile fabrics of all kinds after they have passed through dye-baths, washing machines, etc., contain a large amount of water, o... Dyeing And Finishing
=Dyeing.= When a fabric or fiber is impregnated with a uniform color over its whole surface, it is said to be "simply dyed." On the other hand, if distinct patterns or designs in one or more colors have been impressed upon a fabric, it is called p... Dyeing Machinery And Dyeing Manipulations
Wool is dyed in a variety of forms, raw, loose wool; partly manufactured fibre in the form of slubbing or sliver; spun fibres or yarns, in hanks or skeins and in warps, and lastly in the form of woven pieces. These different forms necessitate the ... Dyeing Machines
Dye-tubs and vats, such as those described above, have been largely superseded by machines in which the handling or working of the materials being dyed is effected by mechanical means. There have been a large number of dyeing machines invented, some... Dyeing Of Gloria
Gloria is a material which during the last few years has become of considerable importance as furnishing a fine lustrous fabric at a comparatively low price. The perfection to which the art of dyeing has attained and the facilities now available t... Dyeing Union (mixed Cotton And Wool) Fabrics
There is now produced a great variety of textile fabrics of every conceivable texture by combining the two fibres, cotton and wool, in a number of ways. The variety of these fabrics has of late years considerably increased, which increase may be l... Dyer's Broom
Genista Tinctoria. The plant grows on waste ground. It should be picked in June or July and dried. It can be used with an alum and tartar mordant and gives a good bright yellow. It is called greening weed and used to be much used for greening blue w... Experimental Dyeing And Comparative Dye Testing
Every dyer ought to be able to make experiments in the mordanting and dyeing of textile fibres for the purpose of ascertaining the best methods of applying mordants or dye-stuffs, the best methods of obtaining any desired shade, and for the purpos... Fibers
All the materials used in the manufacture of clothing are called textiles and are made of either long or short fibers. These fibers can be made into a continuous thread. When two different sets of threads are interlaced, the resulting product is c... Flax
=Flax.= Flax or linen occupies the first position in the group of stem fibers,[18] being not only the oldest, but next to cotton the most important vegetable spinning material known. Its value is increased by the fact that the flax plant readily a... Green
Green results from the mixing of blue and yellow in varying proportions according to the shade of colour required. Every dyer has his particular yellow weed with which he greens his blue dyed stuff. But the best greens are undoubtedly got from w... Green Shades On Wool
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The three fundamental industries that have developed from necessity are the feeding, sheltering, and clothing of the human race. These primary wants were first gratified before such conveniences as transportation and various lines of manufacture wer... History Of The Organization Of Textile Industries
The development of the textile industry may be divided into four stages or periods: first, the family system; second, the guild system; third, the domestic system; and fourth, the factory system. =The Family System.= Under the family system the wo... Hydrosulphite-soda Vat For Wool
2 ozs. powdered indigo. 7 fluid ozs. Caustic Soda solution (SG 1.2). 4 pints Sodium Hydrosulphite (SG 1.1). The Stock Solution.--Take 2 ozs. of well pounded indigo, with enough warm water (120 deg.F.) to make a paste, and grind in a pestle and m... Indigo
Indigo is the blue matter extracted from a plant Indigofera tinctoria and other species, growing in Asia, South America and Egypt. It reaches the market in a fine powder, which is insoluble in water. There are two ways of dyeing with Indigo. It may ... Indigo Extract 4 To 6 Lbs Wool
Mordant[E] 25% Alum. Stir 2 to 3 ozs. Indigo extract into the water of dye bath. The amount is determined by the depth of shade required. When warm, enter the wool and bring slowly to boiling point (about 1/2 an hour) and continue boiling for anothe... Indigo Vat Tin For Wool
To 2 quarts of water add 1/4 lb. lime, and make hot. Then add 1 oz. indigo pounded up with a little of the lime water; let it stand and get warmer. Pound up 1/2 oz. tin, Stannous Chloride, in a little lime water and add, together with 1/2 oz. zinc. ... Iron
(Ferrous Sulphate, copperas, green vitriol.) Iron is one of the oldest mordants known and is largely used in wool and cotton dyeing. It is almost as important as alum. The temperature of the mordanting bath must be raised very gradually to boiling... Kermes
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The art and process of forming fabrics by looping a single thread, either by hand with slender wires or by means of a machine provided with hooked needles, is called knitting. Crocheting is an analogous art, but differs from knitting in the fact t... Lace
=Lace.= Lace is the name applied to an ornamental open work of threads of flax, cotton, silk, gold, or silver, and occasionally of mohair or aloe fiber. The latter are used by the peasants of Italy and Spain. Lace consists of two parts, the grou... Lace Terms Defined
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(For 6 lbs.) 1 oz. cutch, 1 oz. iron. Boil for 1/2 an hour in the cutch, then put into boiling iron, being very careful to stir well. Wash very thoroughly. These proportions can be varied according to the shade of grey required; the more iron mak... Linen
Linen is flax, derived from the decomposed stalks of a plant of the genus Linum. It grows chiefly in Russia, Belgium, France, Holland and Ireland. The plants after being gathered are subjected to a process called "retting" which separates the fib... List Of Lichens Used By The Peasantry Of Different Countries For Wool Dyeing
SHADES OF RED, PURPLE AND ORANGE Borrera ashney. Chutcheleera. India. Conicularia aculeata. var. spadicea. Brown prickly cornicularia. Canary Islands, Highland Mountains. Evernia prunastri. Ragged hoary Lichen. Stag's horn... Logwood
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Under the general designation of mode colours are included a great variety of tints or shades unusually described more specifically (p. 165) as drabs, buffs, greys, fawns, slates, etc. It is impossible here to do more than give a few recipes for t... Mordants
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Prepare by mordanting with alum. Take a sufficient quantity of onion skins and boil for 30 minutes. This gives a good yellow. The addition of tin will make the colour more orange. ... Operations Following Dyeing Washing Soaping Drying
After loose wool, or woollen yarns or piece goods of every description have been dyed, before they can be sent out for sale they have to pass through various operations of a purifying character. There are some operations through which cloths pass ...