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Polyamide fabric coated with a DHA-loaded chitosan hydrogel for a cosmeto-textile application
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Cosmeto-textiles, which allow the administration of molecules when in contact with the skin, are increasingly being developed by cosmetic industries. We have designed an innovative approach for cosmeto-textile products, based on the impregnation of textile fibers with chitosan hydrogels, which have been cross-linked with genipin and loaded with dihydroxyacetone, which is an active component that induces sunless tanning. Dihydroxyacetone-loaded chitosan hydrogels have been prepared and characterized by means of cryogenic scanning electron microscopy (cryo-SEM). The images showed that genipin cross-linking decreases the mesh distance of hydrogels. The release of dihydroxyacetone from these cross-linked genipin chitosan hydrogels has been studied by a dialysis membrane method. These dihydroxyacetone-loaded chitosan hydrogels have been incorporated to polyamide textiles by a simple padding technique. The presence of dihydroxyacetone on these textiles has been detected by hyperspectral imaging on a dark field high resolution optical microscope. Finally, the performance of fabrics as cosmeto-textiles, with a tanning effect, has been evaluated by skin-colorimetry measured with an evaluation panel of 10 people. The results have demonstrated that dihydroxyacetone-loaded textiles produce a tanning effect on skin, and incorporation of dihydroxyacetone-loaded chitosan hydrogels into polyamide fabrics represents a friendly and appropriate strategy to obtain a cosmeto-textile with tanning effect.
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SOLÉ, Isabel, VÍLCHEZ MALDONADO, Susana, MONTANYÀ TANYÀ, Núria, GARCÍA CELMA, Ma josé, FERRÁNDIZ, Marcela, ESQUENA, Jordi. Polyamide fabric coated with a DHA-loaded chitosan hydrogel for a cosmeto-textile application. _Journal of Industrial Textiles_. 2020. Vol. 50, núm. 4, pàgs. 526-542. [consulta: 31 de gener de 2026]. ISSN: 1528-0837. [Disponible a: https://hdl.handle.net/2445/159987]