The plasticisation model of dye diffusion: Part 4.
Saved in:
| Title: | The plasticisation model of dye diffusion: Part 4. |
|---|---|
| Authors: | Burkinshaw, Stephen M.1 (AUTHOR) s.m.burkinshaw@leeds.ac.uk |
| Source: | Coloration Technology. Feb2026, Vol. 142 Issue 1, p119-141. 23p. |
| Subjects: | Polyamides, Material plasticity, Physisorption, Mathematical models, Desorption, Temperature effect, Thermal diffusivity |
| Abstract: | Previously published data reported for the temperature dependency of the diffusion of an organic acid within PA 6 film, as well as the desorption of three acid dyes from dyed nylon 66 fabric, diffusion of an acid dye within nylon 6 film and the adsorption of a sulphur dye onto nylon 66 fabric, over a diverse range of application/washing/dyeing temperatures and conditions, were re‐evaluated using the Williams‐Landel‐Ferry (WLF) equation. As the experimentally observed diffusion/desorption/adsorption of the organic acid, each of the anionic dyes and the sulphur dye within/from/onto each of the respective polyamide substrates adhered to a WLF relationship, the thermally activated diffusivity of the various anionic species is governed by the thermally regulated structural relaxation times of the water‐saturated, water‐swollen, water‐plasticised, poly(ε‐caprolactam) or poly(hexamethylene) adipamide macromolecules. The plasticisation model of dye diffusion seems to offer a reasonable explanation of the observed temperature dependency of the diffusivity of the simple organic acid, each of the four acid dyes and the sulphur dye within both types of aliphatic polyamide. [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 |
|
Full text is not displayed to guests.
Login for full access.
|
|
| Abstract: | Previously published data reported for the temperature dependency of the diffusion of an organic acid within PA 6 film, as well as the desorption of three acid dyes from dyed nylon 66 fabric, diffusion of an acid dye within nylon 6 film and the adsorption of a sulphur dye onto nylon 66 fabric, over a diverse range of application/washing/dyeing temperatures and conditions, were re‐evaluated using the Williams‐Landel‐Ferry (WLF) equation. As the experimentally observed diffusion/desorption/adsorption of the organic acid, each of the anionic dyes and the sulphur dye within/from/onto each of the respective polyamide substrates adhered to a WLF relationship, the thermally activated diffusivity of the various anionic species is governed by the thermally regulated structural relaxation times of the water‐saturated, water‐swollen, water‐plasticised, poly(ε‐caprolactam) or poly(hexamethylene) adipamide macromolecules. The plasticisation model of dye diffusion seems to offer a reasonable explanation of the observed temperature dependency of the diffusivity of the simple organic acid, each of the four acid dyes and the sulphur dye within both types of aliphatic polyamide. [ABSTRACT FROM AUTHOR] |
|---|---|
| ISSN: | 14723581 |
| DOI: | 10.1111/cote.12816 |
