Educating the changing world in the science of colour

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The Use of SI Units

This paper, sponsored by the Publications Committee, is designed to serve as a guide to SI units and the use of the SI system.  It owes its inception to Mr R Murphy of the Department of Industrial Chemistry, The Queen’s University, Belfast.  It was his \notes on the Use of SI Units  submitted to the […]

C B Stevens 01/10/1978 Journal of the Society of Dyers and Colourists

Blue Thread of the Tzitzit: Was the Ancient Dye a Prussian Blue or Tyrian Purple?

The Radzin process for renewing the use of the Biblical blue thread on the Jewish ritual fringed garment (tzitzit) is examined.  The colouring matter formed proved to be Prussian blue. Since a natural dye obtained from a shellfish is required, the Radzin product is disqualified as an authentic revival.  An alternative identification of the ancient […]

I I Ziderman 01/08/1981 Coloration of Textiles, Journal of the Society of Dyers and Colourists

Application of the Channel Flow Cell to the Investigation of Dyeing Kinetics and Mechanism: A New Perspectives on Dyeing Processes

The ability of the channel flow cell to probe reactions at a solution/non-conducting solid interface makes it a powerful method for investigating dyeing reactions. The technique gives direct information about the surface concentrations of dye at the fibre surface and thus allows the elucidation of dyeing mechanisms and the determination of kinetic parameters. The experimental […]

J J Gooding, R G Compton, C M Brennan And J H Atherton 01/03/1998 Journal of the Society of Dyers and Colourists

Synthesis of HMFAN and its Chromium and Cobalt Complexes and their Application on Nylon 6 and Wool

The synthesis of the dye o,o’-dihydroxyazo-HMFAN and its chromium and cobalt complexes, is described. These dyes have been applied to nylon 6 and wool fabrics. Dye exhaustion has been calculated according to the absorbances of the original and residual dyes in the dyebath. The fastness to light, washing and rubbing of the dyed fabrics have […]

H Kocaokutgen, E Erdem And I E Gumrukcuoglu 01/03/1998 Journal of the Society of Dyers and Colourists

Aftertreatment of 1:2 Metal Complex Acid Dyes on Conventional and Microfibre Nylon 6.6 with a Commercial Syntan/cation System

Dyeing (2 % owf) were produced on conventional and microfiber nylon 6.6 fabrics using unsulphonated, monosulphonated and disulphonated 1:2 metal complex acid dyes. When subjected to the ISO 105:C06/C2 wash test, the wash fastness behaviour of the dyeings was related to the degree of sulphonation of the dyes. Aftertreatment of the dyeings using a commercial […]

R S Blackburn And S M Burkinshaw 01/03/1998 Journal of the Society of Dyers and Colourists

Dyeing of Cationised Cotton with Acid Dyes

The production of cationised cotton fabrics, via Sandene 8425, 1,1-dimethyl-3-hydroxyl azetidinium chloride and 1,1-diethyl-3-hydroxy azetidinium chloride, greatly enhances the exhaustion and fixation of acid dyes. This paper shows that these dyes can be used in the absence of salt in a neutral medium. Wash fastness, light fastness and other properties were studied

M Kamel, M M Kamel, B M Youssef And G M Shokry 01/03/1998 Journal of the Society of Dyers and Colourists

Biodeterioration of Natural Fibres

Elaine Evans and Brian McCarthy review the current theories on microbial deterioration of cellulosic fibres and consider some of the methods currently employed to control microbial activity

E Evans And B McCarthy 01/04/1998 Journal of the Society of Dyers and Colourists

Reducing the toxicity of Textile Effluent

Clair Moran talks about activated sludge digestion as a method of industrial waste treatment

C Moran 01/04/1998 Journal of the Society of Dyers and Colourists

Profile – Jim Guthrie

Profile of Jim Guthrie

L A W 01/04/1998 Journal of the Society of Dyers and Colourists

Convective Mass Transfer in Liquid Treatment Processes

A mathematical description of convective mass transfer in the processes of solution flow round a single fibre and through a layer of fibres is proposed. It is shown that theoretical dependence of the rate of mass transfer on flow rate, viscosity of dye solution and rate of diffusion of soluble substances is similar to those […]

F Y Telegin 01/02/1998 Journal of the Society of Dyers and Colourists
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