Treatment of Textile Fibres in Dense Gases — An Overview

Bach, Ernstwendelin; Cleve, E.; Schmidt, Andrew J.; Schollmeyer, Eckhard

doi:10.1002/1522-2640(200106)73:6<719::aid-cite7192222>3.0.co;2-8

Cited by 2 publications

(3 citation statements)

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“…The best result was obtained dyeing two bobbins with Disperse Blue 79 (total amount of yarn was 7.6 kg) in 76 min and with a flow rate of 75 l/min; the amount of dyestuff had to be increased to 65 g to guarantee a similar dye uptake. This result is quite successful if compared with similar ones in the literature where the total amount of treated yarn per run was approximately 2 kg [17].…”

Section: Pilot Plant Tests and Fastness Resultssupporting

confidence: 71%

“…An average mass fraction of dye in the yarn of 11.2 10 -3 was found. This result is quite interesting when compared with a previous work in the literature [17] where a maximum uptake of 4.3 10 -3 for Disperse Red 167 was found with a similar dye/yarn ratio (20 g of dye and 2 kg of PET yarn). The dye uptake of Disperse Blue 79 in the bobbin can also be compared with the equilibrium uptake results shown in Figure 4; this value corresponds to approximately 1/3 of the saturation datum.…”

Section: Pilot Plant Layoutsupporting

confidence: 76%

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Supercritical Dyeing of Textiles — From the Laboratory Apparatus to the Pilot Plant

Banchero

Sicardi

Ferri

et al. 2008

Textile Research Journal

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Supercritical dyeing can be an interesting alternative to traditional dyeing due to the unquestionable advantage of the use of a clean solvent that can be easily recovered and separated from the excess dye at the end of the process. The experience achieved by our research group during a research project supported by the Italian government is reported in this work. The aim of the project was to set up a pilot plant where supercritical dyeing could be performed with yarn bobbins. In particular, this work shows the results obtained for polyester textiles. In the first part of the project, laboratory scale experiments were performed to determine the equilibrium partition of each dye between the two phases. In the second part, the pilot plant was set up. The dyeing results were successful: good reproducibility, together with a good dye uniformity and fastness (comparable with that of the traditional process) were obtained. The maximum productivity of the pilot plant is about 5 kg/h and the total duration of the dyeing process (approximately 1.5 h) is much shorter than that of the tradional method (3—4 h).

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Section: Pilot Plant Tests and Fastness Resultssupporting

confidence: 71%

Section: Pilot Plant Layoutsupporting

confidence: 76%

Supercritical Dyeing of Textiles — From the Laboratory Apparatus to the Pilot Plant

Banchero

Sicardi

Ferri

et al. 2008

Textile Research Journal

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“…Zur Ermittlung der Staubungsneigung können verschieden Messsysteme eingesetzt werden 9–11. Diese Messtechnik ermöglicht es, das Potenzial von Staubemissionen zu ermittelt, die z.…”

Section: Stand Der Technikunclassified

Einfluss der Partikelgröße auf die Staubungsneigung von partikulären Recyclingbaustoffen

Teipel,

Schreiber,

Wolf

2023

Chemie Ingenieur Technik

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Partikuläre Recyclingbaustoffe weisen oft eine breite Partikelgrößenverteilung auf und neigen somit zur Staubentwicklung. Diese Staubfreisetzung in gasförmiger Umgebung ist in vielen Fällen unerwünscht, da sie oft mit einem Ressourcenverlust, einer Belastung der beteiligten Personen und der Umwelt verbunden ist. Im Rahmen dieser Arbeit wurden verschiedene mineralische Materialien mit unterschiedlicher Größenverteilung und identischem Feuchtegehalt auf ihre Staubungsneigung untersucht.

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Treatment of Textile Fibres in Dense Gases — An Overview

Abstract: J o a n n a S t a s i a k G r z e g o r z R o g a c k i P a w e ø W a w r z y n i a k

Cited by 2 publications

References 0 publications

Supercritical Dyeing of Textiles — From the Laboratory Apparatus to the Pilot Plant

Supercritical Dyeing of Textiles — From the Laboratory Apparatus to the Pilot Plant

Einfluss der Partikelgröße auf die Staubungsneigung von partikulären Recyclingbaustoffen

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