Skip to main content
Log in

Post-treatment of reactive dyed cotton fabrics by caustic mercerization and liquid ammonia treatment

  • Original Research
  • Published:
Cellulose Aims and scope Submit manuscript

Abstract

The influence of caustic mercerization (CM) and liquid ammonia (LA) treatments on the properties of reactively dyed cotton fabrics were schematically studied. The cotton fabrics were dyed using different commercial reactive dyes such as Reactive Red 2 (R2), Reactive Blue 21 (B21), and Reactive Orange 5 (O5) via industrial dyeing procedures. The dyed fabrics were then treated using 260 g·L−1 of caustic soda solution at 23 °C for 180 s and pure LA at −40 °C for 3 min in slack and tension conditions. The dyeing properties of the fabrics such as dye removal percentage, color strength, color uniformity, reflectance, and fastness properties (washing, rubbing, hot pressing and light) were examined. The changes in tensile strength, elongation, bending property, decomposition temperature, crystal structure, and surface morphology of the samples were also investigated using a tensile strength tester, thermogravimetric analyzer (TGA), scanning electron microscope (SEM), and an X-ray diffractometer (XRD). Results revealed that the fabric dyed with O5 showed the best stability in CM and LA treatment, and the color strength and color uniformity of the dyed fabrics increased extensively after both treatments, while the reflectance of the fabrics decreased. The washing and rubbing fastness of the fabrics were also improved, which was mainly attributed to the diffusion of the dye molecules inside the fibers and enhanced bonding between fiber and dye molecules. The fastness to hot pressing and light was unaffected and all the samples retained fastness rating between 4 and 5 after being post-treated with the CM and LA, respectively. The tensile strength of the fabrics improved from 287 to 291 and 301 N, and the elongation at break increased from 11 to 21.5 and 26% after CM and LA treatment in slack conditions, respectively. Additionally, the tensile strength of the fabrics improved from 287 to 312 and 330 N, and the elongation at break increased from 11 to 12% after applying tension during both treatments. However, the total bending length and total flexural rigidity of the samples slightly increased after both the treatments either treated with or without tension, which was mainly attributed to the orientation of the cellulose microfibril angle along the fiber axis. The surface morphology and X-ray diffraction examination revealed that the treated samples consisted of smooth rod-like structure and the cellulose I allomorph was converted to cellulose II and cellulose III after CM and LA treatments. This developed treatment method could have application potential within the textile wet-processing industry, as it could be used to improve the dyeing properties and mechanical properties of cotton fabrics.

Graphic abstract

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10

Similar content being viewed by others

Data availability

The datasets generated during the current study are available from the corresponding author on reasonable request (Prof. Yingjie Cai).

Code availability

No code was created during the current manuscript.

References

Download references

Funding

This work was financially supported by the China National Textile & Apparel Council (2013 “Textile Vision” Applied Basic Research, 2013–153).

Author information

Authors and Affiliations

Authors

Contributions

Conceptualization: Yonghong Liang, Wenju Zhu, Cong Zhang, Yingjie Cai; Methodology: Yonghong Liang, Wenju Zhu, Cong Zhang, Md Shipan Mia, Md. Nahid Pervez, Rahul Navik; Formal analysis and investigation: Yonghong Liang, Wenju Zhu, Cong Zhang, Md Shipan Mia, Md. Nahid Pervez, Rahul Navik, Xiao Ding, Md. Ibrahim H. Mondal, Yingjie Cai; Writing—original draft preparation: Yonghong Liang, Wenju Zhu, Cong Zhang, Md Shipan Mia, Md. Nahid Pervez, Rahul Navik; Writing—review and editing: Yingjie Cai, Lina Lin; Funding acquisition: Yingjie Cai; Supervision: Yingjie Cai, Lina Lin.

Corresponding authors

Correspondence to Lina Lin or Yingjie Cai.

Ethics declarations

Conflict of interest

The authors have no conflicts of interest to declare that they are relevant to the content of this article.

Human and animal rights

This article does not contain any studies with human participants or animals performed by any of the authors.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Liang, Y., Zhu, W., Zhang, C. et al. Post-treatment of reactive dyed cotton fabrics by caustic mercerization and liquid ammonia treatment. Cellulose 28, 7435–7453 (2021). https://doi.org/10.1007/s10570-021-03984-7

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10570-021-03984-7

Keywords

Navigation