Microwave-assisted improvement in dyeing behavior of chemical and bio-mordanted silk fabric using safflower (Carthamus tinctorius L) extract

ABSTRACT

The resurgence of natural colorant in textile dyeing is gaining popularity due to their ecofriendly benefits. The current study has been concerned with dyeing of silk fabric using extract obtained from safflower (Carthamus tinctorius L.) which was microwave irradiated for 1–5 min. To make dyeing process more ecofriendly, bio-mordants and chemical mordants have been employed at optimal conditions. It is found that microwave treatment to the extract for 3 min is suitable to get darker shades with acceptable color characteristics using un-irradiated silk. It has been found that dyeing of un-irradiated silk fabric for 60 min using acidic extract of Safflower (pH 2) has given high color strength. Rating of colorfastness reveals that 7% of curcumin and lawsone as bio-mordant has not only given high color depth but also rated excellent fastness properties as compared to chemical mordants used. It is found that microwave treatment has not only improved the dyeing behavior of carthamin but also enhanced the color characteristics.

摘要

天然染料在纺织印染死灰复燃的日益普及，由于其生态友好的好处。目前的研究已涉及丝绸织物通过红花提取物染色（carthamustinctoriusl），1-5分钟照射使染色工艺更环保的微波，生物和化学媒染剂媒染剂已在最佳条件下。结果表明，微波处理3分钟后，用未经辐照处理的真丝织物，可获得色泽较佳的较暗色调。结果表明，用红花酸浸提液（pH 2）对未辐照真丝织物进行60分钟染色，赋予了较高的染色强度。评色牢度表明7%的姜黄素和指甲花醌作为生物媒介不仅给高色彩深度也堪称优秀的牢度性能相比，使用化学媒染剂。发现微波处理不仅提高了红花的染色性能也提高了颜色特征。

KEYWORDS:

• Bio-mordant
• carthamin
• curcumin
• lawsone
• microwave
• silk

关键词:

• 生物媒介
• 微波
• 丝绸

Acknowledgments

We are grateful to Mr. Zafar Iqbal Manger QA & QC of Noor Fatima fABRICS (Pvt.) Limited, Faisalabad, and Muhammad Abbas Director Harris Dyes and Chemical (Pvt.) Limited, Faisalabad, for providing the technical assistance and facilities of fastness testers and spectra flash (SF650).