Investigation into the aqueous and supercritical carbon dioxide dyeing of polyester and cellulose acetate: The influence of temperature and carriers on fabric coloration and dye levelling.
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| Title: | Investigation into the aqueous and supercritical carbon dioxide dyeing of polyester and cellulose acetate: The influence of temperature and carriers on fabric coloration and dye levelling. |
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| Authors: | Broadbent, Peter J.1 (AUTHOR), Carr, Chris M.1 (AUTHOR), Lewis, David M.1 (AUTHOR), Rigout, Muriel L.1 (AUTHOR), Siewers, Ernst J.2 (AUTHOR) c.carr@leeds.ac.uk, Kaveh, Maryam Shojai2 (AUTHOR) n.shojaikaveh@dyecoo.com, Desai, Pankaj3 (AUTHOR) |
| Source: | Coloration Technology. Apr2026, Vol. 142 Issue 2, p196-207. 12p. |
| Subjects: | Textile dyeing, Dyes & dyeing, Textile recycling, Disperse dyes |
| Abstract: | This paper investigated the effect of temperature and time on the dyeing of polyester and cellulose diacetate and demonstrated the benefits of supercritical carbon dioxide (SC‐CO2) dyeing. It was evident that the SC‐CO2 medium enabled effective coloration of polyester at lower temperatures, ca. 100°C, and lower dyeing times in comparison with aqueous dyeing, and also reduced the necessity for water. By contrast, the comparable aqueous disperse dyeing of polyester needed to be at 120°C to achieve full coloration. Energy costs are important in textile dyeing and lowering the dyeing temperature is one approach to minimising energy consumption. In this study, we demonstrated for the first time the beneficial effect of a range of dyebath carriers/accelerants in lowering the SC‐CO2 dyeing time and temperature for polyester, while still achieving effective coloration. The beneficial effect of salicylic acid carrier was similarly observed in the SC‐CO2 dyeing of cellulose acetate, where the dyeing temperature could be reduced from 85 to 60°C and dyeing time similarly reduced. The recycling of textiles is an ongoing challenge for the textile industry. In this study, we have further explored the use of the SC‐CO2 fluid as a medium for reprocessing of discarded dyed polyester and the potential reuse of the "locked‐in" colourant. It was evident that the p‐Vanillin accelerated the SC‐CO2 colour mixing of the blue and yellow dyed polyester fabrics and could assist in producing new colours in "first life and second life" polyester at lower processing temperatures. [ABSTRACT FROM AUTHOR] |
| Copyright of Coloration Technology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 194015012 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Investigation into the aqueous and supercritical carbon dioxide dyeing of polyester and cellulose acetate: The influence of temperature and carriers on fabric coloration and dye levelling. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Broadbent%2C+Peter+J%2E%22">Broadbent, Peter J.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Carr%2C+Chris+M%2E%22">Carr, Chris M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lewis%2C+David+M%2E%22">Lewis, David M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rigout%2C+Muriel+L%2E%22">Rigout, Muriel L.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Siewers%2C+Ernst+J%2E%22">Siewers, Ernst J.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> c.carr@leeds.ac.uk</i><br /><searchLink fieldCode="AR" term="%22Kaveh%2C+Maryam+Shojai%22">Kaveh, Maryam Shojai</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> n.shojaikaveh@dyecoo.com</i><br /><searchLink fieldCode="AR" term="%22Desai%2C+Pankaj%22">Desai, Pankaj</searchLink><relatesTo>3</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Coloration+Technology%22">Coloration Technology</searchLink>. Apr2026, Vol. 142 Issue 2, p196-207. 12p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Textile+dyeing%22">Textile dyeing</searchLink><br /><searchLink fieldCode="DE" term="%22Dyes+%26+dyeing%22">Dyes & dyeing</searchLink><br /><searchLink fieldCode="DE" term="%22Textile+recycling%22">Textile recycling</searchLink><br /><searchLink fieldCode="DE" term="%22Disperse+dyes%22">Disperse dyes</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This paper investigated the effect of temperature and time on the dyeing of polyester and cellulose diacetate and demonstrated the benefits of supercritical carbon dioxide (SC‐CO2) dyeing. It was evident that the SC‐CO2 medium enabled effective coloration of polyester at lower temperatures, ca. 100°C, and lower dyeing times in comparison with aqueous dyeing, and also reduced the necessity for water. By contrast, the comparable aqueous disperse dyeing of polyester needed to be at 120°C to achieve full coloration. Energy costs are important in textile dyeing and lowering the dyeing temperature is one approach to minimising energy consumption. In this study, we demonstrated for the first time the beneficial effect of a range of dyebath carriers/accelerants in lowering the SC‐CO2 dyeing time and temperature for polyester, while still achieving effective coloration. The beneficial effect of salicylic acid carrier was similarly observed in the SC‐CO2 dyeing of cellulose acetate, where the dyeing temperature could be reduced from 85 to 60°C and dyeing time similarly reduced. The recycling of textiles is an ongoing challenge for the textile industry. In this study, we have further explored the use of the SC‐CO2 fluid as a medium for reprocessing of discarded dyed polyester and the potential reuse of the "locked‐in" colourant. It was evident that the p‐Vanillin accelerated the SC‐CO2 colour mixing of the blue and yellow dyed polyester fabrics and could assist in producing new colours in "first life and second life" polyester at lower processing temperatures. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Coloration Technology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1111/cote.12821 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 196 Subjects: – SubjectFull: Textile dyeing Type: general – SubjectFull: Dyes & dyeing Type: general – SubjectFull: Textile recycling Type: general – SubjectFull: Disperse dyes Type: general Titles: – TitleFull: Investigation into the aqueous and supercritical carbon dioxide dyeing of polyester and cellulose acetate: The influence of temperature and carriers on fabric coloration and dye levelling. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Broadbent, Peter J. – PersonEntity: Name: NameFull: Carr, Chris M. – PersonEntity: Name: NameFull: Lewis, David M. – PersonEntity: Name: NameFull: Rigout, Muriel L. – PersonEntity: Name: NameFull: Siewers, Ernst J. – PersonEntity: Name: NameFull: Kaveh, Maryam Shojai – PersonEntity: Name: NameFull: Desai, Pankaj IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 14723581 Numbering: – Type: volume Value: 142 – Type: issue Value: 2 Titles: – TitleFull: Coloration Technology Type: main |
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