study of the dyeing of Hercosett wool
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study of the dyeing of Hercosett wool a kinetic and equilibrium study.-. by Dev Raj Gupta

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Published in Bradford .
Written in English

Book details:

Edition Notes

Ph. D. thesis. Typescript.

The Physical Object
Number of Pages122
ID Numbers
Open LibraryOL13729662M

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   The theoretical basis of wool dyeing Anionic or so-called acid dyes in wool dyeing. Wool is a heterogeneous polymer, mainly made up of many different amphoteric proteins; it may be coloured with a variety of water-soluble dyes but in practice it is invariably dyed and printed with sulphonated ://   is a very comprehensive book on the subject of wool dyeing, with contributed chapters from ten experts in the field. Dyestuff classes for wool fabrics Dyes employed in the colouration of wool fabrics are generally supplied as powders, granules or in liquid form. They are soluble in water, so that wool dyeing recipes are aqueous :// In this two-part series we will use the conversation with Cliff to dive into the deep mysteries of Superwash Wool and the ways it is made. Interview Notes: The structure of wool and wool scales up close; Why and how wool felts/shrinks (DFE) Wool before and after the chlorine/Hercosett process; Wool before and after the Chlorination portion Ann Milner studied art, ceramics and weaving at Coventry Teacher Training College in England. Her weaving tutor was the late Constance Towers. In she emigrated to New Zealand and began a study of New Zealand flora for her book on natural dyeing, Natural Wool Dyes and Recipes, which was published in  › Books › Crafts, Hobbies & Home › Crafts & Hobbies.

L. Aizpurua's 5 research works with 16 citations and reads, including: A Comparative Study of Bleaching Untreated, Chlorinated and Hercosett-treated Wool with Hydrogen Peroxide   Wool fibers are shrink-resist treated to make the wool garments machine washable. • The scales available on wool fiber surface are responsible for felting shrinkage. • Various treatments have been investigated to make wool garments shrink-resistant. • The chlorine-Hercosett process is the most effective but harmful to the environment. • Some batch dyeing machines only operate at temperatures up to ºC. However, the system can be pressurized, allowing for the use of temperatures above ºC. Cotton, rayon, nylon, wool and some other fibers dye well at temperatures of ºC or below. Polyester and some other synthetic fibers dye more easily at temperatures above ://   The modified Donnan model is used to explain quantitatively both the de crease and increase of acid dye sorption on wool with increasing salt concentration. Alberghina, G., Fisichella, S., and Occhipinti, S., Donnan Approach to Equilibrium Sorption: Influence of Electrolytes on Dyeing of Dralon X with CI Basic Blue 3, Textile Res. J

  The above analyses are approximations and are governed by the acid dissociation constants of the –NH3 + 3 and –COOH residues, conveniently expressed as pK a values; for example at 25 °C lysine ε-amino has a pK a value of about and the glutamic acid terminal carboxylate is about Possibly of even greater significance, in terms of positive charge contribution, is the guanidyl side Lee YH () Dyeing, fastness, and deodorizing properties of cotton, silk, and wool fabrics dyed with coffee sludge (Coffea arabica L.) extract. J Appl Polym Sci – Google Scholar Mansour HF, Heffernan S () Environmental aspects on dyeing silk fabric with sticta coronata lichen using ultrasonic energy and mild ://   Acid dyes: The dye molecules possess sulphonic or carboxylic groups in their structure, which produce affinity for wool and silk fibre. The dyeing is done at acidic pH of – After dyeing the fastness improvement is done with tannic acid. The dyeing of wool and silk with saffron is done by acid dyeing As the dyeing of wool is generally carried out in an aqueous system at the boil it was felt that the model system would be more accurate if the compounds studied were water soluble. This paper reports on the synthesis of the sulfonated version of the model reactive dye compound used in Part I of this study and its subsequent reaction with model