レーヨンパルプ品質の目標とその技術的諸問題

Yamamoto, Junzaburo

doi:10.2115/fiber.11.696

Cited by 1 publication

(1 citation statement)

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“…These properties make polypropylene versatile and useful for home‐furnishing and industrial applications [1]. However, its market in clothing and apparel is limited because of the poor dyeability in general dyeing systems [2]. Polypropylene fibres are extremely difficult to dye with commonly used methods because of their high crystallinity and non‐polar aliphatic structure, which does not contain reactive sites for dyestuffs in the molecule [3,4].…”

Section: Introductionmentioning

confidence: 99%

Relationship between colour fastness and colour strength of polypropylene fabrics dyed in supercritical carbon dioxide: effect of chemical structure in 1,4‐bis(alkylamino)anthraquinone dyestuffs on dyeing performance

Miyazaki

Tabata

Hori

2011

Coloration Technology

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A series of 1,4‐bis(alkylamino)anthraquinone dyestuffs were applied for supercritical fluid dyeing of unmodified polypropylene fabric, which is known to be difficult to dye in a conventional aqueous system. A marked tendency was shown that the dyeability improved as the carbon number of alkyl substituents on the anthraquinone chromophore increased. By evaluating the build‐up curves of the dyestuff, it was found that the carbon number of optimum alkyl chain length for 1,4‐bis(alkylamino)anthraquinone was 8–12. From the relationship between the build‐up curve and the colour fastness, it was concluded that the upper limit of dyeing depth for good colour fastness was 40 mmol/kg of fibre.

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Section: Introductionmentioning

confidence: 99%