Environmentally friendly coloration of cotton by the <scp>UV</scp>‐induced photografting of α‐bromoacrylamido dyes

Dong, Youming; Jang, Jinho

doi:10.1111/cote.12094

Cited by 11 publications

(3 citation statements)

References 30 publications

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“…The reaction propagates by radical formation and then leads to the covalent bonding of the dye to the fabric surface. This technique has many advantages: (i) many functional monomers can be grafted to the substrate, (ii) the reaction is fast and controllable, (iii) it occurs at room temperature and thus can be applied to thermo-sensitive substrates, and (iv) more importantly it guarantees long grafting durability (Dong and Jang, 2014).…”

Section: Introductionmentioning

confidence: 99%

Surface Functionalization of Cotton Fabrics by Photo-Grafting for pH Sensing Applications

et al. 2020

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This paper investigates the photo-grafting of a halochromic molecule on cotton fabric surfaces. Nitrazine yellow (NY) dye was modified with a methacrylate moiety (GMA) obtaining a photo-reactive dye (GMA-NY), which was covalently grafted onto the cellulosic substrate by means of UV irradiation. The photo-grafting reaction was studied by FT-IR spectroscopy, while the pH response of the functionalized fabric was evaluated at different pH conditions (i.e., acidic and alkaline conditions) both in wet and vapor environments by spectrophotometric analyses. The results showed that the photografting of the modified dye onto the fabric was successful: treated cotton clearly changed color when subjected to different pH. It was thus demonstrated that the GMA-NY dye, photo-grafted on cotton, can successfully impart pH sensing properties to the fabric, which can therefore find numerous applications in the area of smart textiles.

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Section: Introductionmentioning

confidence: 99%

Surface Functionalization of Cotton Fabrics by Photo-Grafting for pH Sensing Applications

et al. 2020

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“…Supercritical fluid carbon dioxide (scCO 2 ) facilitates the transference of colourants by liquid/vapour transformation. Above the triple point, an increase in temperature drives state transformation .…”

Section: Introductionmentioning

confidence: 99%

Environmentally friendly aspects in coloration

Kan

Man

2016

Coloration Technology

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People are paying increasing attention to environmental protection and prefer products to be manufactured and consumed in an environmentally friendly way. These are the main trends likely to persist in the near future. In the past two decades, academic research on environmentally friendly coloration has proliferated significantly. In this study, the current status of environmentally friendly coloration research and the future research trends are reviewed systematically, covering the literature from 1995 to 2014. The environmentally friendly coloration literature is classified by objectives into four categories: ingredient preparation; coloration process; wash‐off process; reuse. After reviewing the accumulated knowledge of coloration, future directions of ecological coloration development are discussed.

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“…On the other hand, Dong and Jang [18] proposed the direct photografting of wool-reactive dyes themselves onto cotton fabric. This coloration utilizes the photoreactivity of certain dyes under UV irradiation, through photopolymerization, photografting, and photocross-linking processes, to form a polymerized and cross-linked dye network.…”

Section: Introductionmentioning

confidence: 99%

UV Treatments on Cotton Fibers

Ferrero¹,

Migliavacca²,

Periolatto³

2016

Cotton Research

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Ultraviolet (UV) radiations can act in different ways on the functionalization of textiles, through pre-or posttreatments, in order to modify their behavior in dyeing and finishing processes. In cotton fiber, unlike the wool, the UV absorption is not due to any of the structural groups of the normal cellulosic chains and can only be attributed to "impurities" or "faults" bearing carbonyl and/or carboxyl groups. In fact, UV irradiation coupled with mild oxidation can improve some properties of the cotton fibers such as pilling resistance, water swelling, and dyeability. Therefore, the process of differential dyeing with direct and reactive dyes assisted by UV irradiation was studied and interesting differential chromatic effects were obtained by a UV posttreatment capable to fade dyeing. On the other hand, the surface modification of cotton fabrics by UV curing and UV grafting with suitable chemicals was pursued to obtain finishing treatments able to confer oil and/or water repellency. Finally, antimicrobial finishing by chitosan UV grafting was proposed as valid environmental friendly method to confer a satisfactory washing-resistant antimicrobial activity to cotton fabrics even with low polymer add-on.

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Environmentally friendly coloration of cotton by the UV‐induced photografting of α‐bromoacrylamido dyes

Cited by 11 publications

References 30 publications

Surface Functionalization of Cotton Fabrics by Photo-Grafting for pH Sensing Applications

Surface Functionalization of Cotton Fabrics by Photo-Grafting for pH Sensing Applications

Environmentally friendly aspects in coloration

UV Treatments on Cotton Fibers

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