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Patch Testing with a Textile Dye Mix in Two Concentrations - A Multicentre Study by the Swedish Contact Dermatitis Research Group

Journal article
Authors Kristina Ryberg
Johanna Bråred Christensson
Malin Engfeldt
Marléne Isaksson
Magnus Lindberg
Mihaly Matura
Berndt Stenberg
Cecilia Svedman
Magnus Bruze
Published in Acta dermato-venereologica
Volume 95
Issue 4
Pages 427-431
ISSN 1651-2057
Publication year 2015
Published at Institute of Clinical Sciences, Department of Dermatology and Venereology
Pages 427-431
Language en
Subject categories Dermatology and Venereal Diseases


Disperse dyes, which are used for colouring synthetic textile fibres, are well-known contact sensitisers. To investigate the outcome of patch-testing with a textile dye mix (TDM) at 7 dermatology clinics in Sweden, a TDM tested at 2 concentrations was included into the baseline series during one year. The mix consisted of Disperse (D) Blue 35, D Yellow 3, D Orange 1 and 3, D Red 1 and 17, all 1.0%, and D Blue 106 and D Blue 124, each 0.3% in the mix 6.6% and 1.0% each in the mix 8.0%. In 2,122 tested patients, contact allergy to the TDM 8.0% was found in 2.8% and to the TDM 6.6% in 2.5% of the patients. The contact allergy to the TDM could explain or contribute to the dermatitis in about 35% of the patients. Conclusion: contact allergy to the TDM is common and inclusion into the Swedish baseline series should be considered.

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