Simultaneous Dyeing and Finishing of Silk Fabric With Natural Color and Itaconic Acid

Das, Debasish; Datta, Dibyendu Bikash; Bhattacharya, Pinaki

doi:10.1177/0887302x14520964

Cited by 16 publications

(12 citation statements)

References 6 publications

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“…The FTIR spectra of untreated silk fabric and eri silk treated with maleic acid and Aloe vera gel under conventional curing are shown in Figure 4. A broad absorption band over 3200 cm -1 characteristic of hydrogen-bonded (N-H) stretching vibration and an absorption band in the range of 1621 cm -1 to 1637 cm -1 characteristic of amide stretching are common to all spectra (Das et al, 2014). Two notable absorption bands at 1316.14 cm 1 and 1426.65 cm -1 appearing in different intensities in the spectrum of unmodi ed silk [spectrum 1 of Figure 4] are characteristic of carboxylate anion stretching and phenolic (-OH) bending, respectively.…”

Section: Ftir Analysismentioning

confidence: 99%

In-Situ Polymerization of Maleic Acid in Presence of Aloe vera Gel for Development of Eco-Friendly Eri Silk based Handlooms

Banerjee¹,

Majumdar²,

Datta³

et al. 2021

Preprint

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Polycarboxylic acid compounds such as butane-tetra-carboxylic acid, cyclopentane-tetra-carboxylic acid, and citric acid offer an environmentally friendly, non-toxic, and safe alternative to toxic formaldehyde condensate resin as a silk cross-linking agent. However, the sodium salts of phosphorus-containing mineral acids used as esterification catalysts with such polycarboxylic acids are not environmentally friendly because of their reported adverse effects on the aquatic environment and soil. Also, finishes based on such non-polymeric polycarboxylic acids cannot retain or improve the strength and moisture-regain characteristics of silk. Moreover, most polycarboxylic acids are too expensive for practical exploitation. In view of the above, the present work was aimed at establishing the optimum condition for the application of vinyl monomer containing carboxylic acid like maleic acid in presence of initiator and catalysts on silk fabric in the presence of ammonium persulphate as the free radical polymerization catalyst and trisodium citrate as the esterification catalyst. In this study, eri silk-based handloom fabrics were finished with Aloe vera gel and maleic acid as a cross-linking agent using the pad-dry-cure method. Water-soluble Aloe vera gel with varying concentrations of 5 to 15% (w/v) was also added in the finishing bath to add antibacterial activity to the fabric along with the anti-crease properties. Evaluation of attainable changes or improvements in the eri silk based handloom fabric properties in respect of tensile strength, wrinkle recovery, flexibility, antimicrobial, porosity and moisture regain on such treatments have been done. Besides this, changes in the chemical nature of silk fabric on such modifications have been studied by infrared (IR) spectroscopy and reported in this research article. The study proposes thermal curing system is conducive for in-situ polymerization of maleic acid in presence of Aloe vera for the development of eco-friendly eri silk based handlooms with antibacterial and anti-crease properties, without a significant loss in strength properties. The effects of the antimicrobial agent were assessed even after the 10 wash cycle.

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Section: Ftir Analysismentioning

confidence: 99%

In-Situ Polymerization of Maleic Acid in Presence of Aloe vera Gel for Development of Eco-Friendly Eri Silk based Handlooms

Banerjee¹,

Majumdar²,

Datta³

et al. 2021

Preprint

Self Cite

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“…For this reason, it is necessary to introduce a linking agent that enhances compatibility with the polymeric matrix. Most of the natural dyes present hydroxylic groups (–OH) in their structure and for example can be esterified with polycarboxylic acids such as citric acid or itaconic acid (IA) [ 15 ]. These, and others such as amino groups, are considered color helpers.…”

Section: Introductionmentioning

confidence: 99%

Color Fixation Strategies on Sustainable Poly-Butylene Succinate Using Biobased Itaconic Acid

Quiles¹,

Vidal²,

Luzi

et al. 2020

Polymers

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Biopo-lybutylene succinate (bioPBS) is gaining attention in the biodegradable polymer market due to its promising properties, such as high biodegradability and processing versatility, representing a potential sustainable replacement for fossil-based commodities. However, there is still a need to enhance its properties for certain applications, with aesthetical and mechanical properties being a challenge. The aim of the present work is to improve these properties by adding selected additives that will confer bioPBS with comparable properties to that of current counterparts such as polypropylene (PP) for specific applications in the automotive and household appliances sectors. A total of thirteen materials have been studied and compared, being twelve biocomposites containing combinations of three different additives: a commercial red colorant, itaconic acid (IA) to enhance color fixation and zirconia (ZrO2) nanoparticles to maintain at least native PBS mechanical properties. The results show that the combination of IA and the coloring agent tends to slightly yellowish the blend due to the absorbance spectra of IA and also to modify the gloss due to the formation of IA nanocrystals that affects light scattering. In addition, for low amounts of IA (4 wt %), Young’s Modulus seems to be kept while elongation at break is even raised. Unexpectedly, a strong aging affect was found after four weeks. IA increases the hydrophilic behavior of the samples and thus seems to accelerate the hydrolization of the matrix, which is accompanied by an accused disaggregation of phases and an overall softening and rigidization effect. The addition of low amounts of ZrO2 (2 wt %) seems to provide the desired effect for hardening the surface while almost not affecting the other properties; however, higher amounts tends to form aggregates saturating the compounds. As a conclusion, IA might be a good candidate for color fixing in biobased polymers.

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“…Coloring substances can be extracted from the different parts of the plant like roots, barks, leaves, fruits and flowers and also from the other natural sources. Natural colorants are not only used for their medicinal value and anti-oxidant properties but also to enhance the aesthetic value of the textile product [4,5]. Therefore, to address some of these issues this study was aimed to dye silk fabric with eco-friendly natural dye extracted from bark of Bauhinia vahlii plant.…”

Section: Introductionmentioning

confidence: 99%

Dyeing and flame retardant finishing of silk fabric: an ecofriendly approach

Bar

2020

SN Appl. Sci.

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In the current context of environmental contamination due to disposal of textile-manufacturing waste, substitution of synthetic dyes and chemicals with bio-colour or bio-extract is a big confront. Thus, the need of the hour is to develop green chemicals or dyes for sustainable textile processing with an eco-friendly approach. In light of above, a bio-colour has been extracted from Bauhinia vahlii bark and applied on the degummed and bleached silk fabric along with a bioacid (citric acid). Dyed silk fabrics were tested for their color strength and fastness properties like color fastness to washing, water crocking and light and found satisfactory results. Banana peduncle extract (BPE) is also applied on the dyed fabric to improve the fastness properties and enhance the functional properties like flame retardant by pad-dry-cure method. Dyed and BPE treated silk fabric was tested and analysed for their color fastness properties and mechanical properties, like thickness, bending length, flexural rigidity and crease recovery and the results were recorded. Notably, evaluation of dyed and BPE treated silk fabric was carried out for flame retardancy according to ASTM D1230 standards and promising result was obtained.

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Simultaneous Dyeing and Finishing of Silk Fabric With Natural Color and Itaconic Acid

Cited by 16 publications

References 6 publications

In-Situ Polymerization of Maleic Acid in Presence of Aloe vera Gel for Development of Eco-Friendly Eri Silk based Handlooms

In-Situ Polymerization of Maleic Acid in Presence of Aloe vera Gel for Development of Eco-Friendly Eri Silk based Handlooms

Color Fixation Strategies on Sustainable Poly-Butylene Succinate Using Biobased Itaconic Acid

Dyeing and flame retardant finishing of silk fabric: an ecofriendly approach

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