Influence of reactive dyes on ultraviolet protection of cotton knitted fabrics with different fabric constructions

Wong, Wai Yeung; Lam, Jimmy; Kan, Chi Wai; Postle, R.

doi:10.1177/0040517515591776

Cited by 13 publications

(16 citation statements)

References 33 publications

(90 reference statements)

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“…When a mask is available in multiple colors, black and blue make a better choice. 26,31 The darkness of a shade also correlates, albeit weakly, with UPF. 26 Nevertheless, the bottom line is that the depth/strength of a color is the most important factor as it indicates a higher concentration of UV-absorbing dye molecules.…”

Section: Color and Dyesmentioning

confidence: 99%

“…26 The color of a fabric is only its reflection in the visible spectrum and unfortunately doesn't correlate well with its absorbance in the UV spectrum. 26 The chemical composition of dye molecules holds greater weight on the resulting UPF than the hue or darkness of the fabric. 9,26 Many studies demonstrate the large impact that colorants and chemical finishing compounds can have on UPF.…”

Section: Color and Dyesmentioning

confidence: 99%

“…26 The chemical composition of dye molecules holds greater weight on the resulting UPF than the hue or darkness of the fabric. 9,26 Many studies demonstrate the large impact that colorants and chemical finishing compounds can have on UPF. 11,32 Zinc oxide (ZnO) and titanium dioxide (TiO 2 ), the active ingredients in mineral sunscreens, are primarily used for other purposes in the textiles industry.…”

Section: Color and Dyesmentioning

confidence: 99%

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An Added Benefit of Masks During the COVID-19 Pandemic: Ultraviolet Protection

2021

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The widespread use of masks during the COVID-19 pandemic presents a new avenue for protecting the lower half of the face from the harms of sun exposure. The increased social acceptability of masks, which may persist post-pandemic, has the potential to impact prevention of photosensitive disorders, photoaging, and skin cancer. The authors sought to review clinically relevant information on the ultraviolet (UV) shielding properties of masks. This synthesis of current research will help physicians counsel patients on optimal mask choices, from both dermatological and public health viewpoints. The variables impacting the UV protection of masks were reviewed, including fabric type, construction, porosity, and color. Other factors related to wear and use such as moisture, stretch, laundering, and sanitization are discussed in the context of the pandemic. Black, tightly woven, triple-layered polyester cloth masks were determined to be optimal for UV protection. The most protective choice against both SARS-CoV-2 and UV radiation is a medical mask worn underneath the aforementioned cloth mask. In order to preserve the filtration capacity of the fabric, masks should be changed once they have become moist. Washing cotton masks before first use in laundry detergents containing brightening agents increases their UV protection. Overall, cloth masks for the public that are safest against SARS-CoV-2 are generally also the most protective against UV damage. People should be encouraged to procure a high-quality mask to simultaneously help reduce the spread of SARS-CoV-2 and shield against sun exposure. Further investigation is needed on the UV-protective properties of medical masks.

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Section: Color and Dyesmentioning

confidence: 99%

Section: Color and Dyesmentioning

confidence: 99%

Section: Color and Dyesmentioning

confidence: 99%

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An Added Benefit of Masks During the COVID-19 Pandemic: Ultraviolet Protection

2021

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“…Various kind of synthetic dyes are commercially available to enhances the UPF of the fabric. Direct, vat and reactive dyes increases the UPF of fabric [85][86][87]. Various researches reported that natural dyes can also enhances the UPF of the fabric.…”

Section: Uv Protective Dyesmentioning

confidence: 99%

Application of Smart and Functional Dyes in Textiles

Pargai¹

2021

Dyes and Pigments - Novel Applications and Waste Treatment

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Our future will be based on functional and AI based smart products, where every industry wants to develop these kinds of products. Textile industry also cannot remain untouched with this technological innovation. Dyes have been utilising for coloration of textiles since ancient time. But at present with various advancement in technology as well as requirements of consumers, the need for functional and smart dyes arises. Various current researches are based on application of smart and functional dyes on textile to develop smart and functional textiles. The dyes which add the functional and smart properties to the textiles can be called as functional and smart dyes. Functional and smart dyes are available in both synthetic and natural form. But with the environment concern, the researchers are going on to find out natural source of these dyes. Functional dyes such as UV protective dye, antimicrobial dye, moth repellent dye offer specific function after application on textiles. Smart dyes like photochromic, thermochromic, electrochromic and solvatochromic etc. are playing very imp role to develop a smart textile which can offer reversible colour change which leads to impart various properties such as thermoregulation, camophlage properties into the textiles. Functional dyes generally limited to the textiles sector but smart dyes are not just restricted to it. Application of smart dyes is extended to various fields such as automobiles, robotics, aircrafts, medicine and surgery etc. This chapter will mainly deal with the types, application methods and application area of functional and smart dyes especially in connection with textiles.

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“…[1][2][3] Dyeing of cotton fabrics with reactive dye is an extremely complex process which must take into account a large number of physical and chemical properties, such as fiber micronaire/maturity, reactive dye affinity, dyeing methods, dyeing equipment, dye dosage, electrolyte concentration, pH value, dyeing time, temperature, pressure, and dye liquor circulation speed in the dye-bath. [4][5][6][7][8] While modern dyeing factories can carefully control these factors, there are other parameters which are less easily controlled, such as water quality, atmospheric pressure conditions, measuring instrument errors, dyeing equipment errors, and operator experience. 9 Practice has shown that to achieve high one-time success at low costs, it is necessary to improve the dyeing device and the equipment level, control accurately dyeing process and quality of dyeing products and optimize dye concentrations and processing conditions.…”

mentioning

confidence: 99%

K/S value prediction of cotton fabric using PSO-LSSVM

et al. 2020

Textile Research Journal

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Cotton is one of the world’s most common natural clothing materials. It is dyed mainly using the exhaustion, cold pad-batch, and pad-dry-pad-steam dyeing methods. The K/S value, an important index for measuring the depth of color, of cotton fabric dyed with reactive dyes is greatly influenced by various factors of the dyeing process. In this study, three models were developed incorporating least squares support vector machine (LSSVM) to predict the K/S values of dyed cotton fabrics, while particle swarm optimization (PSO) was applied to optimize and tune the parameters of the LSSVM model (PSO-LSSVM). Model inputs include dye concentration and process conditions, which are both easily obtainable variables. The K/S values from the PSO-LSSVM model are consistent with actual measured K/S values of dyed cotton fabrics. Moreover, a comparison among PSO-LSSVM, LSSVM and back propagation neural network results shows the superiority of the PSO-LSSVM approach. Results of this work indicate that a PSO-LSSVM model is a powerful tool for predicting the K/S value in cotton fabric dyed with reactive dye and thus a means to improve production processes and reduce costs.

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Influence of reactive dyes on ultraviolet protection of cotton knitted fabrics with different fabric constructions

Cited by 13 publications

References 33 publications

An Added Benefit of Masks During the COVID-19 Pandemic: Ultraviolet Protection

An Added Benefit of Masks During the COVID-19 Pandemic: Ultraviolet Protection

Application of Smart and Functional Dyes in Textiles

K/S value prediction of cotton fabric using PSO-LSSVM

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