Influence of Household Washing on the Colorimetric Properties of Intrinsically Natural Organic Cotton Fabrics

ABSTRACT

This research aimed to examine how household washing influences the colorimetric characteristics of natural colored organic cotton (NaCOC) fabrics. The colorimetric properties of (NaCOC) fabrics were assessed both before and after undergoing washing for up to 30 cycles. The findings indicated that washing significantly influenced the colorimetric properties of naturally dyed cotton fabrics, as evidenced by changes in lightness and saturation. The most significant difference in color between the two samples was observed after the initial wash, highlighting the reduction in both parameters, lightness and saturation, after this first washing. Between the second and fifth washes, there are notable differences in these parameters. However, from the fifth wash, the variation in color difference was minimal. Additionally, the FTIR-ATR analysis of the extracts in petroleum ether and subsequently in ethanol of the NaCOC fabrics, before and after home washing, in conjunction with a comparison with shrinkage, demonstrated that the latter process was accountable for the darkening of the sample.

摘要

本研究旨在检验家用洗涤如何影响天然彩色有机棉（NaCOC）织物的比色特性. （NaCOC）织物的比色性能在洗涤前和洗涤后进行了长达30个循环的评估. 研究结果表明，洗涤显著影响天然染色棉织物的比色性能，明度和饱和度的变化就是明证. 两个样品之间最显著的颜色差异是在初次洗涤后观察到的，这突出了第一次洗涤后亮度和饱和度这两个参数的降低. 在第二次和第五次洗涤之间，这些参数存在显著差异. 然而，从第五次洗涤开始，色差的变化最小. 此外，在家庭洗涤前后，对NaCOC织物的石油醚提取物和随后的乙醇提取物进行FTIR-ATR分析，并与收缩率进行比较，表明后一个过程是样品变暗的原因.

KEYWORDS:

• Natural colored cotton
• colorimetric
• color changes
• household washing

关键词:

• 天然彩色棉
• 比色法
• 颜色变化
• household washing家庭洗涤

Acknowledgments

The authors would like to express their gratitude to Mr. Francisco José Barahona, Mr. Oliver García, Mrs. Montserrat Guerrero, Mr. Ferran Parés and Mrs. Zurine Ramírez for their assistance in the experimental work.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Highlights

Innovation and Impact: This study introduces an approach to the field of sustainable textiles, focusing on the influence of domestic laundering on the colorimetric attributes of natural colored organic cotton (NaCOC) fabrics. Understanding how natural organic cotton materials react to routine domestic laundering is crucial for sustainable fashion and the textile industry.

Methodological Details: This article provides a detailed description of the experimental process, which includes fabric preparation, laundering, shrinkage and colorimetric analysis. The comprehensive nature of the methodology enhances the reliability of the study and allows for replication of the results.

Analytical Depth: This study conducted a thorough quantitative analysis of the color change of NaCOC fabrics, after repeated laundering cycles, relating these phenomena with the losses of pigments after each wash and with the shrinkage of the fabrics, providing important insights into the relationship among those variables. The inclusion of quantitative data and visual representations adds a level of scientific precision to this research.

Illustrative Elements: This study includes informative visual content, such as charts and images, to visually demonstrate the changes in color and lightness that occur in NaCOC) fabrics after domestic washing. These illustrative components are integral in clarifying the findings of this study.

Sustainability Implications: The findings of this study are crucial for promoting sustainable textile practices, as they shed light on the behavior of naturally colored cotton fabrics when subjected to domestic laundering. Understanding these characteristics is essential for advocating sustainable and environment-friendly textile options.