The Discrimination of Colored Acrylic, Cotton, and Wool Textile Fibers Using Micro-Raman Spectroscopy. Part 1 : In Situ Detection and Characterization of Dyes

Raman spectroscopy has been applied to characterize fiber dyes and determine the discriminating ability of the method. Black, blue, and red acrylic, cotton, and wool samples were analyzed. Four excitation sources were used to obtain complementary responses in the case of fluorescent samples. Fibers that did not provide informative spectra using a given laser were usually detected using another wavelength. For any colored acrylic, the 633-nm laser did not provide Raman information. The 514-nm laser provided the highest discrimination for blue and black cotton, but half of the blue cottons produced noninformative spectra. The 830-nm laser exhibited the highest discrimination for red cotton. Both visible lasers provided the highest discrimination for black and blue wool, and NIR lasers produced remarkable separation for red and black wool. This study shows that the discriminating ability of Raman spectroscopy depends on the fiber type, color, and the laser wavelength.

The demand for textile fibers in the United States /

Includes bibliographical references (p. 101-105).

The changing uses of textile fibers in clothing and household articles /

Caption title.

Identification of fibers in textile materials.

Mode of access: Internet.

Composite materials obtained from textile fiber residue

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

LYOCELL AND COTTON FIBERS AS REINFORCEMENTS FOR A THERMOSET POLYMER

Cellulose fibers obtained from the textile industry (lyocell) were investigated as a potential reinforcement for thermoset phenolic matrices, to improve their mechanical properties. Textile cotton fibers were also considered. The fibers were characterized in terms of their chemical composition and analyzed using TGA, SEM, and X-ray. The thermoset (non-reinforced) and composites (phenolic matrices reinforced with randomly dispersed fibers) were characterized using TG, DSC, SEM, DMTA, the Izod impact strength test, and water absorption capacity analysis. The composites that were reinforced with lyocell fibers exhibited impact strengths of nearly 240 Jm(-1), whereas those reinforced with cotton fibers exhibited impact strengths of up to 773 Jm(-1). In addition to the aspect ratio, the higher crystallinity of cotton fibers compared to lyocell likely plays a role in the impact strength of the composite reinforced by the fibers. The SEM images showed that the porosity of the textile fibers allowed good bulk diffusion of the phenolic resin, which, in turn, led to both good adhesion of fiber to matrix and fewer microvoids at the interface.

Questions and answers relating to the Textile Fiber Products Identification Act and regulations.

"April 1986."

The textile fibres; their physical, microscopical, and chemical properties.

"Bibliography of the textile fibres": p. 275-278.

Textile testing : physical, chemical and microscopical /

Mode of access: Internet.

An introduction to textile bleaching /

Printed in Great Britain.

High strength, high modulus fibers by pyrolysis of polymeric fibers

Mode of access: Internet.

A possible application of organic fibers in high temperature environment /

This report was prepared by Fabric Research Laboratories, Inc. under USAF Contract No. AF33 (616)--6234 under Project No. 7320, Task No. 73201.

Textile antistats and lubricants

Includes bibliography.