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Materiale Plastice
Cite as: Mater. Plast.
https://doi.org/10.37358/Mat.Plast.1964

OSIM Nr. R102356
ISSN Print 0025-5289
ISSN Online 2668-8220
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Materiale Plastice (Mater. Plast.), Year 2015, Volume 52, Issue 4,





ALINA RADITOIU, VALENTIN RADITOIU, VIORICA AMARIUTEI, VIOLETA PURCAR, MARIUS GHIUREA, MONICA RADULY, LUMINITA WAGNER Surface Coating on Cellulose Fabrics with Nonionic Dyes - silica Hybrids


Abstract:
Coatings obtained on cellulose fabrics with nonionic dyes - silica hybrids have been investigated. Composition of the impregnation bath and parameters having a major influence on coloring properties were studied in relationship with washing and light fastness. It was found that cotton can be coated with organic-inorganic nonionic dyes - silica hybrids exhibiting fair washing and light fastness. Properties of the coated materials can be controlled by variation of parameters affecting sol obtaining procedures or impregnation conditions. The presence of only one trialkoxysilane group per chromogen makes the formation of a highly crosslinked silica network to be difficult. The partial condensation of DR1-PTES (Disperse Red 1 dye covalently linked to 3-isocyanatopropyltriethoxysilane) to the stage of oligomeric structures, together with the existence of silanol and unhydrolyzed alkoxysilane groups can explain leaching behavior of the coatings obtained with this type of hybrid materials. Keywords: nonionic dyes, silica hybrids, surface coating, cotton fabrics, sol-gel process



Issue: 2015 Volume 52, Issue 4
Pages:
Publication date: 2015/12/30
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