Effect of different filters on the extraction of norbixin from Bixa orellana for synthetic fiber dyeing and development of a post-dyeing process for removal of the unfixed dye

Angolan Industry and Chemical Engineering Journal Pub Date : 2021-09-28 DOI:10.47444/aincej.v1i1.3

M. J. Gonçalves, Cynthia Baptista Pereira, Nathália Meyer Manske, Crisleine Regina Hillesheim, Amábile Colla Prando, S. Bertoli, R. C. C. R. Valle, I. O. Barcellos, L. Tavares

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引用次数: 1

Abstract

The aim of this study was to compare the efficiency of three types of filters for the extraction of the annatto dye from Bixa orellana for polyester dyeing. In addition, post-dyeing washing processes were proposed to improve the wash and rubbing fastness. In the extraction procedure the paper filter presented the highest yield (13.3%), followed by the polypropylene (11.4%), but there was no significant difference in the results for the exhaustion percentage (average of 87.4%) and K/S values (1.68 to 2.24). Results showed the polypropylene filter was the most suitable and can be reused. The post-dyeing washing processes with detergent improved the fastness increasing the color transfer score from 1.5 (large change) to 3 (small change). An acceptable color difference between the dyed fabric samples before and after washing was observed. Results indicate that the post-dyeing washing process improves the quality of dyed fabrics to levels acceptable for industrial application.

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不同滤料对海参合成纤维染色中去甲酚素提取的影响及脱除不固定染料的染后工艺研究

本研究的目的是比较三种过滤器提取红木染料用于涤纶染色的效率。此外，还提出了提高织物洗涤牢度和摩擦牢度的染色后洗涤工艺。在提取过程中，纸滤器的提取率最高(13.3%)，其次是聚丙烯滤器(11.4%)，但其回收率(平均为87.4%)和K/S值(1.68 ~ 2.24)的结果无显著差异。结果表明，聚丙烯过滤器是最合适的，可以重复使用。染色后加洗涤剂的洗涤工艺提高了染色牢度，将颜色转移分数从1.5(变化大)提高到3(变化小)。染色织物样品水洗前后的色差是可以接受的。结果表明，染后洗涤工艺可将染色织物的质量提高到工业应用可接受的水平。

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Angolan Industry and Chemical Engineering Journal

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