The Society of Dyers and Colourists (SDC) is an international

professional society A professional association (also called a professional body, professional organization, or professional society) usually seeks to further a particular profession, the interests of individuals and organisations engaged in that profession, and the ...

, with headquarters in

Bradford Bradford is a city and the administrative centre of the City of Bradford district in West Yorkshire, England. The city is in the Pennines' eastern foothills on the banks of the Bradford Beck. Bradford had a population of 349,561 at the 2011 ...

West Yorkshire West Yorkshire is a metropolitan and ceremonial county in the Yorkshire and Humber Region of England. It is an inland and upland county having eastward-draining valleys while taking in the moors of the Pennines. West Yorkshire came into exis ...

, UK, specializing in colour in all its manifestations. Founded in 1884, it was granted a

Royal Charter of Incorporation A royal charter is a formal grant issued by a monarch under royal prerogative as letters patent. Historically, they have been used to promulgate public laws, the most famous example being the English Magna Carta (great charter) of 1215, but s ...

in 1963. The SDC is a registered

charity Charity may refer to: Giving * Charitable organization or charity, a non-profit organization whose primary objectives are philanthropy and social well-being of persons * Charity (practice), the practice of being benevolent, giving and sharing * C ...

. Together with the

American Association of Textile Chemists and Colorists AATCC—the American Association of Textile Chemists and Colorists— is a 501(c)(6) not-for-profit professional association that provides test method development, quality control materials, educational development, and networking for textile and a ...

, SDC publishes the

Colour Index International Colour Index International is a reference database jointly maintained by the Society of Dyers and Colourists and the American Association of Textile Chemists and Colorists. It currently contains over 27,000 individual products listed under 13,00 ...

, which is recognized as the authoritative source on

colourant A colourant/colour additive (British spelling) or colorant/color additive (American spelling) is a substance that is added or applied in order to change the colour of a material or surface. Colourants can be used for many purposes including printing ...

s. Colour Index International is used to identify the

pigment A pigment is a colored material that is completely or nearly insoluble in water. In contrast, dyes are typically soluble, at least at some stage in their use. Generally dyes are often organic compounds whereas pigments are often inorganic compou ...

s and

dye A dye is a colored substance that chemically bonds to the substrate to which it is being applied. This distinguishes dyes from pigments which do not chemically bind to the material they color. Dye is generally applied in an aqueous solution and ...

s used in manufacturing inks, paints, textiles, plastics, and other materials. Since 1884 SDC have published the ''Journal of the Society of Dyers and Colourists'', a journal relaunched in 2001 as ''Coloration Technology''. The Society is a member of the

Science Council The Science Council is a UK organisation that was established by Royal Charter in 2003. The principal activity of The Science Council is the promotion of the advancement and dissemination of knowledge of and education in science pure and applie ...

External links

Society of Dyers and Colourists

References

{{Reflist Color organizations Textile industry of the United Kingdom Dyers and Colourists