Reference : On the frequency of occurrence of a peculiar polyester fibre type found in blue denim...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
On the frequency of occurrence of a peculiar polyester fibre type found in blue denim textiles
De Wael, Kris [ > > ]
Baes, Christiaan [> > > >]
Lepot, Laurent mailto [> > > >]
Gason, Fabrice [ > > ]
Science & Justice
Yes (verified by ORBi)
[en] Jeans ; Blue denim ; Indigo ; Polyester ; Microspectrophotometry (MSP) ; Raman spectroscopy
[en] In a double murder investigation, the victims were found after a prolonged stay in a drainage canal. In spite of the expectations, fibre examination established a multitude of primary and secondary transferred fibres. One of these fibre types was a colourless polyester fibre possessing a blue coloured molten fibre end. These matched one of the types present in the suspect's blue denim trousers. The aim of this study was to verify the rarity of this peculiar fibre type and more precisely its presence in blue denim textiles. Over five hundred different blue jeans textiles were examined and only one of these presented exactly the same type. The comparison involved microscopy, microspectrophotometry in the visible range and Raman spectroscopy. The results indicate this fibre type is extremely rare in a blue jeans fabrics and that "standard" blue denim should not be disregarded in case work.

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