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Transforming post-consumer cotton waste textiles into viscose staple fiber using hydrated zinc chloride

Bågenholm-Ruuth, Edvin LU ; Sanchis Sebastia, Miguel LU orcid ; Hollinger, Nadine ; Teleman, Anita ; Larsson, Per Tomas and Wallberg, Ola LU orcid (2023) In Cellulose
Abstract
Large amounts of cellulose-based waste textiles are generated every year, yet little is done to recycle this waste. Alternatives such as fiber-to-fiber recycling, where a significant part of the value of the waste textiles is recovered, are attractive possibilities. In this study, we have investigated the viability of using hydrated zinc chloride (ZnCl2·4H2O) as a solvent and swelling agent to convert cotton waste textiles (the most abundant cellulose-based waste textile) into a dissolving pulp that can be used as raw material for the production and spinning of viscose fibers. The solvent produced an accessible dissolving pulp and exhibited excellent recyclability, maintaining good dissolving power even after repeated recycling. The... (More)
Large amounts of cellulose-based waste textiles are generated every year, yet little is done to recycle this waste. Alternatives such as fiber-to-fiber recycling, where a significant part of the value of the waste textiles is recovered, are attractive possibilities. In this study, we have investigated the viability of using hydrated zinc chloride (ZnCl2·4H2O) as a solvent and swelling agent to convert cotton waste textiles (the most abundant cellulose-based waste textile) into a dissolving pulp that can be used as raw material for the production and spinning of viscose fibers. The solvent produced an accessible dissolving pulp and exhibited excellent recyclability, maintaining good dissolving power even after repeated recycling. The dissolving pulp was subsequently used to produce viscose dope, a spinning solution which was spun and cut into viscose staple fibers. The viscose dope exhibited good properties (moderate filter clogging value and gamma number), and the resulting staple fibers were strong and of good quality (high linear density, elongation, and tenacity). These results illustrate the potential of using hydrated zinc chloride for the production of viscose grade dissolving pulp from cotton waste textiles. (Less)
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organization
publishing date
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Contribution to journal
publication status
epub
subject
in
Cellulose
publisher
Springer
external identifiers
  • scopus:85180523175
ISSN
0969-0239
DOI
10.1007/s10570-023-05646-2
language
English
LU publication?
yes
id
2f6726ee-20c1-4e34-83e0-aead02a72eab
date added to LUP
2024-01-18 16:45:17
date last changed
2024-01-29 04:03:52
@article{2f6726ee-20c1-4e34-83e0-aead02a72eab,
  abstract     = {{Large amounts of cellulose-based waste textiles are generated every year, yet little is done to recycle this waste. Alternatives such as fiber-to-fiber recycling, where a significant part of the value of the waste textiles is recovered, are attractive possibilities. In this study, we have investigated the viability of using hydrated zinc chloride (ZnCl2·4H2O) as a solvent and swelling agent to convert cotton waste textiles (the most abundant cellulose-based waste textile) into a dissolving pulp that can be used as raw material for the production and spinning of viscose fibers. The solvent produced an accessible dissolving pulp and exhibited excellent recyclability, maintaining good dissolving power even after repeated recycling. The dissolving pulp was subsequently used to produce viscose dope, a spinning solution which was spun and cut into viscose staple fibers. The viscose dope exhibited good properties (moderate filter clogging value and gamma number), and the resulting staple fibers were strong and of good quality (high linear density, elongation, and tenacity). These results illustrate the potential of using hydrated zinc chloride for the production of viscose grade dissolving pulp from cotton waste textiles.}},
  author       = {{Bågenholm-Ruuth, Edvin and Sanchis Sebastia, Miguel and Hollinger, Nadine and Teleman, Anita and Larsson, Per Tomas and Wallberg, Ola}},
  issn         = {{0969-0239}},
  language     = {{eng}},
  month        = {{12}},
  publisher    = {{Springer}},
  series       = {{Cellulose}},
  title        = {{Transforming post-consumer cotton waste textiles into viscose staple fiber using hydrated zinc chloride}},
  url          = {{http://dx.doi.org/10.1007/s10570-023-05646-2}},
  doi          = {{10.1007/s10570-023-05646-2}},
  year         = {{2023}},
}