The Experts below are selected from a list of 2568 Experts worldwide ranked by ideXlab platform
Andreas J Irche - One of the best experts on this subject based on the ideXlab platform.
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irritant contact dermatitis from a black Henna tattoo without sensitization to para phenylendiamine
Pediatrics, 2013Co-Authors: Fabiola Kind, Kathrin Schere Hofmeie, Andreas J IrcheAbstract:Allergic contact dermatitis from nonpermanent black Henna tattoos has been frequently reported, particularly in children. Contamination or adulteration of the dyes with para-phenylendiamine has been identified as major cause of active sensitization and elicitation of severe allergic contact dermatitis. Sequelae include permanent sensitization, hyper- or hypopigmentation, scarring, keloids, and hypertrichosis. We report a rare case of irritant dermatitis to an unknown ingredient in a black Henna tattoo with consecutive hypopigmentation. Sensitization to para-phenylendiamine and other para-compounds was excluded by patch test evaluation. This is relevant for future exposure to consumer products such as hair dyes or in occupational settings. Generally, black Henna tattoos, particularly if done with dyes of unknown composition, should be strongly discouraged. * Abbreviations: PPD — : para-phenylendiamine
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contact dermatitis to para phenylenediamine in hair dye following sensitization to black Henna tattoos an ongoing problem
Journal Der Deutschen Dermatologischen Gesellschaft, 2012Co-Authors: Fabiola Kind, Kathri Schere, Andreas J IrcheAbstract:Summary Background: The increased frequency of case reports of allergic contact dermatitis from non-permanent black Henna tattoos in recent years shows the popularity of this form of body painting. Patients and methods: Seven patients presented with allergic contact dermatitis after initial hair or eyelash dyeing. They all had a history of a previous reaction from a black Henna tattoo. All were patch tested with the European standard patch test series and the standard supplemental series, as well as special series for dyes and hairdressers. Results: All seven patients showed a positive reaction in patch testing with para-phenylenediamine (PPD) (0.3 % and/or 1.0 % in pet.). Five patients also had positive reactions to other dyes such as aminophenol, para-toluene diamine, disperse orange and yellow and four patients reacted to benzocaine. These were interpreted as cross-reactions. The time from sensitization by the black Henna tattoo to the onset of allergic contact dermatitis after hair dyeing was an average of 6.2 years. Conclusions: The most common cause of allergic contact dermatitis after black Henna tattoos is PPD. Both the long skin contact and the high concentrations of PPD increase the risk of sensitization. Allergic contact dermatitis may be followed by post-inflammatory hyper- or hypopigmentation, scarring and lifelong sensitization, which can have occupational impact, especially for hair dressers and cosmeticians.
Fabiola Kind - One of the best experts on this subject based on the ideXlab platform.
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irritant contact dermatitis from a black Henna tattoo without sensitization to para phenylendiamine
Pediatrics, 2013Co-Authors: Fabiola Kind, Kathrin Scherer Hofmeier, Andreas J BircherAbstract:Allergic contact dermatitis from nonpermanent black Henna tattoos has been frequently reported, particularly in children. Contamination or adulteration of the dyes with para-phenylendiamine has been identified as major cause of active sensitization and elicitation of severe allergic contact dermatitis. Sequelae include permanent sensitization, hyper- or hypopigmentation, scarring, keloids, and hypertrichosis. We report a rare case of irritant dermatitis to an unknown ingredient in a black Henna tattoo with consecutive hypopigmentation. Sensitization to para-phenylendiamine and other para-compounds was excluded by patch test evaluation. This is relevant for future exposure to consumer products such as hair dyes or in occupational settings. Generally, black Henna tattoos, particularly if done with dyes of unknown composition, should be strongly discouraged.
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irritant contact dermatitis from a black Henna tattoo without sensitization to para phenylendiamine
Pediatrics, 2013Co-Authors: Fabiola Kind, Kathrin Schere Hofmeie, Andreas J IrcheAbstract:Allergic contact dermatitis from nonpermanent black Henna tattoos has been frequently reported, particularly in children. Contamination or adulteration of the dyes with para-phenylendiamine has been identified as major cause of active sensitization and elicitation of severe allergic contact dermatitis. Sequelae include permanent sensitization, hyper- or hypopigmentation, scarring, keloids, and hypertrichosis. We report a rare case of irritant dermatitis to an unknown ingredient in a black Henna tattoo with consecutive hypopigmentation. Sensitization to para-phenylendiamine and other para-compounds was excluded by patch test evaluation. This is relevant for future exposure to consumer products such as hair dyes or in occupational settings. Generally, black Henna tattoos, particularly if done with dyes of unknown composition, should be strongly discouraged. * Abbreviations: PPD — : para-phenylendiamine
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contact dermatitis to para phenylenediamine in hair dye following sensitization to black Henna tattoos an ongoing problem
Journal Der Deutschen Dermatologischen Gesellschaft, 2012Co-Authors: Fabiola Kind, Kathri Schere, Andreas J IrcheAbstract:Summary Background: The increased frequency of case reports of allergic contact dermatitis from non-permanent black Henna tattoos in recent years shows the popularity of this form of body painting. Patients and methods: Seven patients presented with allergic contact dermatitis after initial hair or eyelash dyeing. They all had a history of a previous reaction from a black Henna tattoo. All were patch tested with the European standard patch test series and the standard supplemental series, as well as special series for dyes and hairdressers. Results: All seven patients showed a positive reaction in patch testing with para-phenylenediamine (PPD) (0.3 % and/or 1.0 % in pet.). Five patients also had positive reactions to other dyes such as aminophenol, para-toluene diamine, disperse orange and yellow and four patients reacted to benzocaine. These were interpreted as cross-reactions. The time from sensitization by the black Henna tattoo to the onset of allergic contact dermatitis after hair dyeing was an average of 6.2 years. Conclusions: The most common cause of allergic contact dermatitis after black Henna tattoos is PPD. Both the long skin contact and the high concentrations of PPD increase the risk of sensitization. Allergic contact dermatitis may be followed by post-inflammatory hyper- or hypopigmentation, scarring and lifelong sensitization, which can have occupational impact, especially for hair dressers and cosmeticians.
M.n. Islam - One of the best experts on this subject based on the ideXlab platform.
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Coloration of polyester fiber with natural dye Henna (Lawsonia inermis L.) without using mordant: a new approach towards a cleaner production
Fashion and Textiles, 2018Co-Authors: M. A. Rahman Bhuiyan, S. M. Fijul Kabir, M.a. Hannan, A. Islam, A. Ali, M.n. IslamAbstract:The demand of natural colorants for the dyeing of textile fibers has been increasing gradually in recent years due to a growing global ecological awareness as well as a greater emphasis on a cleaner and greener production process. The eco-friendly dyeing of polyester fiber with natural dye Henna is a novel approach that has extensively been studied in this article. To this end, the dyeing of polyester fiber with Henna dye was conducted at different temperatures without using hazardous metallic mordants. Then the dyeing performance was investigated in terms of depth of shade measurement, analysis of colorimetric properties of color and assessment of color fastness properties of Henna dyed polyester fabric samples. The amount of dye absorption by fiber and the resulting depth of shade were found to increase with increasing dyeing temperature. In case of colorfastness properties, all dyed substrates demonstrated excellent fastness ratings against washing, rubbing and perspiration with little to no deterioration of color. Moreover, the detailed morphological study revealed that surface structure of fiber remained unchanged after dyeing at an elevated temperature and pressure. So, the findings suggest that dyeing of polyester fiber with Henna dye without any metallic mordants is a promising approach to get the desired dyeing performance alongside opening up an avenue for eco-friendly dyeing.
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Color and chemical constitution of natural dye Henna (Lawsonia inermis L) and its application in the coloration of textiles
Journal of Cleaner Production, 2018Co-Authors: Mohiuddin Ahmed Bhuiyan, A. Islam, A. Ali, M.n. IslamAbstract:The natural dye Henna usually being recognized as lawsone is a red-orange pigment that has long been used for the coloration of skin and hair as well as textile materials. This natural colorant garners the attention of researchers throughout the globe for the coloration of textile materials due to the fact that its color can easily be harmonized with nature besides its slight chemical reactivity without posing any environmental problems. So, a large number of studies were carried out on both extraction and application of Henna dye in textile fibers along with the standardization and simplification of dyeing techniques. This review article is mainly focused on the contemporary research works on Henna dye highlighting the general characteristics alongside its chemical composition and chromatic properties. A greater emphasis is also placed on the dyeing chemistry of the natural dye Henna as well as its applications in the dyeing of cellulosic, protein and synthetic textile fibers including the effects of different mordants and mordanting methods on the dye uptake. Moreover, the scope of improvement in terms of dyeability and overall colorfastness properties through chemical modification of textile fibers has also been mentioned.
Andreas J Bircher - One of the best experts on this subject based on the ideXlab platform.
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irritant contact dermatitis from a black Henna tattoo without sensitization to para phenylendiamine
Pediatrics, 2013Co-Authors: Fabiola Kind, Kathrin Scherer Hofmeier, Andreas J BircherAbstract:Allergic contact dermatitis from nonpermanent black Henna tattoos has been frequently reported, particularly in children. Contamination or adulteration of the dyes with para-phenylendiamine has been identified as major cause of active sensitization and elicitation of severe allergic contact dermatitis. Sequelae include permanent sensitization, hyper- or hypopigmentation, scarring, keloids, and hypertrichosis. We report a rare case of irritant dermatitis to an unknown ingredient in a black Henna tattoo with consecutive hypopigmentation. Sensitization to para-phenylendiamine and other para-compounds was excluded by patch test evaluation. This is relevant for future exposure to consumer products such as hair dyes or in occupational settings. Generally, black Henna tattoos, particularly if done with dyes of unknown composition, should be strongly discouraged.
J. Bellido - One of the best experts on this subject based on the ideXlab platform.
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Contact Allergy to Henna
International Archives of Allergy and Immunology, 1997Co-Authors: J. C. Garcia Ortiz, M. Terron, J. BellidoAbstract:Vegetable dyes can be recommended to patients sensitized to oxidative dyes due to their low allergenic power. The most important of these is Henna which is used as a reddishbrown hair dye in some parts of the world. Different pathologies have been described caused by Henna but the incidence of contact dermatitis appears to be extremely rare. In the present paper, we describe the case of a 30-year-old woman who developed allergic contact dermatitis following application of Henna, but who did not work with the dye professionally.