A further study of dye batch variation in textile and carpet fibres

The discrimination of (non-denim) blue cotton

“…Whilst variation is evident in most spectra, it is a characteristic of cotton fibres (and other natural fibres) that this is a reflection of the variation in dye uptake -not only between fibres but along the length of individual fibres. It is also possible that in some garments different panels may be dyed using different dye batches before final assembly [17,18]. Nevertheless, the spectra obtained from the different areas of wear were reflected in the observed range from the main body of the garment in question.…”

Forensic comparison of synthetic fibers

“…TLC can be used with other techniques such as microscopy and UV-vis microspectrophotometry in the comparison of fiber batches. [68] TLC can separate more dye classes than other technique can do. TLC requires relatively large quantities of dye and different solvent systems for different dye classes.…”

Extraction and Analysis of Disperse Dyes from Colored Polyester Single Fibers Using Liquid Chromatography/Linear Ion Trap Tandem Mass Spectrometry

“…1,2 Many studies have been conducted to analyze the dyes in colored fibers using microspectrophotometry, [3][4][5][6][7][8][9][10] TLC, [11][12][13][14][15][16][17][18][19] HPLC, [20][21][22][23][24][25] and LC/MS, [26][27][28][29][30] because these dyes can provide significant information in forensic analyses.…”

“…31 Dye-extractions are performed by heating colored fibers in various solvents and solvent mixtures, [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30] including the recommended pyridine/water (4:3, v/v) mixture by the SWGMAT guidelines. 32 We reported a method for extracting a residual surfactant from threads using centrifugal filtration of a methanol solution extracted into a glass capillary.…”