Study of the Water and Energy Consumptions in the Dyeing of Cotton with Curcuma Longa by Pad-Batch Process Using Response Surface Methodology

ABSTRACT

Mathematical modeling was employed in order to optimize pad-batch process using C. longa natural dyestuff applied in dyeing of cotton, against the conventional dyeing by exhaustion with the same dyestuff under best applications parameters recommended by dyestuff supplier. Ecological costs, consumption of water, electrical, and thermal energy, were assessed. The application of the model in the studied process versus the conventional process demonstrated that is possible to obtain an economy of 1.418 × 10⁶ J kg^‒1 of energy, in addition to an economy of 95% in water consumption, without significant detriment in the color fastness assessed.

摘要

采用数学建模的方法，用C.Longa龙卡天然染料应用于棉织物的染色，在染料供应商推荐的最佳应用参数下，与传统的同一种染料上染进行对比. 评估了水、电和热能的生态成本. 将该模型应用于所研究的工艺与传统工艺进行比较，结果表明，该模型可获得1.418的经济性× 能量为106 Jkg‒1，耗水量经济性为95%，且不会对评估的色牢度造成重大损害.

KEYWORDS:

• Natural dyestuff
• textile dyeing
• ecological costs
• consumption of energy
• consumption of water
• response surface methodology

关键词:

• 天然染料
• 纺织品染色
• 生态成本
• 能源消耗
• 用水量
• 响应面法

Acknowledgments

The authors are grateful to Golden Technology and SENAI-SP.

Additional information

Funding

This work was supported by the Golden Technology [USP 1011045].