UV-Vis microspectrophotometric study of wool and polyamide fibres dyed with analogous gryfalan dyes

作者：Starczak Roza^*; Was Gubala Jolanta

来源：Dyes and Pigments, 2016, 132: 58-63.

DOI：10.1016/j.dyepig.2016.04.041

• Textile
• Wool
• Polyamide
• Gryfalan dyes
• Microspectrophotometry
• Forensic science

The presented study was dedicated to the comparison between wool and polyamide fibres, dyed with metal-complex (gryfalan) dyes being analogous regarding type and concentration, with the use of UV-Vis microspectrophotometry. The affinity of used dyes to the particular fibre type as well as the influence of fibre polymer on the quality of spectra obtained were subjected to evaluation. The absorbance spectra, obtained with the use of a 20/20 PV (TM) microspectrophotometer (CRAIC Technologies) for single fibres selected from 15 woolen and 15 polyamide fabrics, were studied. The results indicated that at the same concentration of dye, the dyes' affinity is higher for polyamide fibres than for wool. Thus, the conduction of the examination of single wool fibres in the visible and in the UV-A range can be recommended, and in the case of analysing fibres with similar microscopic colour, the chemometric treatment seems to be an effective way of discrimination.

• 出版日期2016-9