scholarly journals Ultraviolet Protection by Fabric Engineering

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Mukesh Kumar Singh ◽  
Annika Singh
Keyword(s):  
Areal Density ◽  
Woven Fabrics ◽  
Uv Protection ◽  
Comfort Level ◽  
Protection Factor ◽  
Ultraviolet Protection Factor ◽  
Wear Comfort ◽  
Ultraviolet Protection ◽  
Multifilament Yarns ◽  
Fabric Structures

Background. The increasing emission of greenhouse gases has evoked the human being to save the ozone layer and minimize the risk of ultraviolet radiation (UVR). Various fabric structures have been explored to achieve desired ultraviolet protection factor (UPF) in various situations. Objective. In this study, the effect of various filament configurations like twisted, flat, intermingled, and textured in multifilament yarns on fabric in different combinations is assessed in order to engineer a fabric of better ultraviolet protection factor (UPF). Methods. In order to engineer a fabric having optimum UV protection with sufficient comfort level in multifilament woven fabrics, four different yarn configurations, intermingled, textured, twisted, and flat, were used to develop twelve different fabric samples. The most UV absorbing and most demanding fibre polyethylene terephthalate (PET) was considered in different filament configuration. Results. The combinations of intermingled warp with flat, intermingled, and textured weft provided excellent UVR protection comparatively at about 22.5 mg/cm2 fabric areal density. The presence of twisted yarn reduced the UV protection due to enhanced openness in fabric structure. Conclusion. The appropriate combination of warp and weft threads of different configuration should be selected judiciously in order to extract maximum UV protection and wear comfort attributes in multifilament woven PET fabrics.

Influence of Metal Mordants Concentration to Improve UV Protection and Fastness Properties of Silk Fabric Dyed with Purple Corn Cob

2014 ◽  
Vol 1030-1032 ◽  
pp. 430-433
Author(s):  
Rattanaphol Mongkholrattanasit ◽  
Charoon Klaichoi ◽  
Pannarai Rug-Ngam ◽  
Monthon Nakpathom ◽  
Manat Paengsai ◽  
...  
Keyword(s):  
Uv Protection ◽  
Silk Fabric ◽  
Fastness Properties ◽  
Protection Factor ◽  
Ultraviolet Protection Factor ◽  
Metallic Salts ◽  
Ultraviolet Protection ◽  
Purple Corn ◽  
Protection Property ◽  
Silk Fabrics

In the present study, natural dye from cob of purple corn and various metallic salts have been used to identify the proper dyeing condition for attaining high quality natural dyeing along with imparting UV protection property to the dyed silk fabric. Silk fabrics dyed with cob of purple corn extract showed a violetish-pink shade, while those dyed with alum light violetish-pink shade colour. Silk substrates dyed with CuSO4 and FeSO4 gave a yellowish grey and violetish-gray colour, respectively. The fastness properties ranged from fair to good. The ultraviolet protection factor (UPF) values of silk fabric dyed with and without metal mordants ranged between very good and excellent.

Ultraviolet Protection Properties of Single Jersey Knit Outerwear: Part I - Effect of Stretch

2016 ◽  
Vol 848 ◽  
pp. 191-194
Author(s):  
Chi Wai Kan ◽  
Kin Cheung ◽  
Rattanaphol Mongkholrattanasit
Keyword(s):  
Uv Protection ◽  
Experimental Results ◽  
Protection Factor ◽  
Ultraviolet Protection Factor ◽  
Ultraviolet Protection ◽  
Single Jersey

In this study, 6 commercially available single jersey knit outerwears were collected from the market which claimed to have ultraviolet protection factor of 25. In vitro method with the use of spectrophotometer was used for evaluating their ultraviolet protection properties under different stretch conditions. Experimental results revealed that the stretch would greatly reduce the UV protection properties of knit outwears.

Development and characterization of three-dimensional woven fabric for ultra violet protection

2018 ◽  
Vol 30 (4) ◽  
pp. 536-547
Author(s):  
Adeela Nasreen ◽  
Muhammad Umair ◽  
Khubab Shaker ◽  
Syed Talha Ali Hamdani ◽  
Yasir Nawab
Keyword(s):  
3D Structure ◽  
Three Dimensional ◽  
Air Permeability ◽  
Woven Fabrics ◽  
Woven Fabric ◽  
Protection Factor ◽  
Content Type ◽  
Ultraviolet Protection Factor ◽  
Ultraviolet Protection

Purpose The purpose of this paper is to investigate the effect of materials, three dimensional (3D) structure and number of fabric layers on ultraviolet protection factor (UPF), air permeability and thickness of fabrics. Design/methodology/approach Total 24 fabrics samples were developed using two 3D structures and two weft materials. In warp direction cotton (CT) yarn and in weft direction polypropylene (PP) and polyester (PET) were used. Air permeability, thickness and UPF testings were performed and relationship among fabric layers, air permeability, thickness and UPF was developed. Findings UPF and thickness of fabrics increases with number of fabric layers, whereas air permeability decreases with the increase in number of fabric layers. Furthermore, change of multilayer structure from angle interlock to orthogonal interlock having same base weave does not give significant effect on UPF. However, change of material from polyester (PET) to polypropylene (PP) has a dominant effect on UPF. Minimum of three layers of cotton/polyester fabric, without any aid of ultraviolet radiation (UV) resistant coating, are required to achieve good. Cotton/polyester fabrics are more appropriate for outdoor application due to their long-term resistance with sunlight exposure. Originality/value Long-term exposure to UV is detrimental. So, there is need of proper selection of material and fabric to achieve ultraviolet protection. 3D fabrics have yarns in X, Y as well as in Z directions which provide better ultraviolet protection as compared to two dimensional (2D) fabrics. In literature, mostly work was done on ultraviolet protection of 2D fabrics and surface coating of fabrics. There is limited work found on UPF of 3D woven fabrics.

scholarly journals Evaluating the ultraviolet protection factor (UPF) of various knit fabric structures

2018 ◽  
Vol 459 ◽  
pp. 012051 ◽  
Author(s):  
E Louris ◽  
E Sfiroera ◽  
G Priniotakis ◽  
R Makris ◽  
H Siemos ◽  
...  
Keyword(s):  
Protection Factor ◽  
Ultraviolet Protection Factor ◽  
Ultraviolet Protection ◽  
Fabric Structures

UV Protection Property of Colorant from Lac for Silk Fabric Dyeing by Cold Pad-Batch: The Influence of Metal Mordants Concentration

2014 ◽  
Vol 884-885 ◽  
pp. 257-260 ◽  
Author(s):  
Rattanaphol Mongkholrattanasit ◽  
Nattadon Rungruangkitkrai ◽  
Nitaya Tubtimthai ◽  
Nuttanan Sasivatchutikool
Keyword(s):  
Stannous Chloride ◽  
Uv Protection ◽  
Silk Fabric ◽  
Protection Factor ◽  
Ultraviolet Protection Factor ◽  
Metallic Salts ◽  
Lac Dye ◽  
Ultraviolet Protection ◽  
Protection Property ◽  
Silk Fabrics

In the present study, natural dye from lac dye and various metallic salts have been used to identify the proper dyeing condition for attaining high quality natural dyeing along with imparting UV protection property to the dyed silk fabric. Silk fabrics dyed with lac extract showed a light pink shade, while those dyed with alum and stannous chloride pinkish-red colour. Silk substrates dyed with CuSO4gave a purple red colour, while those dyed with FeSO4had a reddish-gray colour. The fastness properties ranged from fair to good, while washing fastness was poor level. The ultraviolet protection factor (UPF) values of silk fabric dyed with and without metal mordants ranged between very good and excellent for the silk fabric.

Studies on Nano – UV Protective Finish on Apparel Fabrics for Health Protection

2011 ◽  
Vol 15 (3) ◽  
pp. 11-20 ◽  
Author(s):  
Dr. Hireni Mankodi ◽  
Dr. Bipin Agarwal
Keyword(s):  
Skin Cancer ◽  
Protective Clothing ◽  
Cell Function ◽  
Sun Exposure ◽  
Uv Protection ◽  
Protection Factor ◽  
Ultraviolet Protection Factor ◽  
Ultraviolet Protection ◽  
Harmful Effects ◽  
Made In

There is a growing demand in the marketplace for textile apparel that offers comfort and protection from the harmful effects of ultraviolet (UV) radiation. The UV rays of the sun when they come into contact with skin lead to all kinds of skin problems. The accumulated effects damage the skin’s DNA and cell function. In addition to skin cancer, excessive sun exposure also causes pre-malignant actinic keratoses, wrinkles, dark and unsightly blotches, leathery skin and prone to destabilizing the immune system. Research has shown that sun (UV) protective clothing is one of the most effective ways to protect against skin cancer. Such fabrics are specifically designed for sun protection by covering a maximum amount of skin and made from a fabric rated for its level of UV protection. Throwing on a sun protective shirt with an ultraviolet protection factor (UPF) of 30+ value is a proactive decision, which can simply help to live a healthier life. Hence, an attempt has been made in this study to visualize the effect of an application of titanium dioxide nano finish onto cotton and its blends with viscose and polyester to provide nano UV protection, without hampering the strength of the substrate.

Modeling Ultraviolet Protection Factor of Polyester-Cotton Blended Woven Fabrics Using Soft Computing Approaches

2014 ◽  
Vol 9 (3) ◽  
pp. 155892501400900 ◽  
Author(s):  
Piyali Hatua ◽  
Abhijit Majumdar ◽  
Apurba Das
Keyword(s):  
Soft Computing ◽  
Fuzzy Inference ◽  
Woven Fabrics ◽  
Good Prediction ◽  
Protection Factor ◽  
Inference System ◽  
Ultraviolet Protection Factor ◽  
Good Prediction Accuracy ◽  
Input Parameters ◽  
Ultraviolet Protection

Ultraviolet protection factor (UPF) of woven fabrics is modeled by using two soft computing approaches, namely adaptive network based fuzzy inference system (ANFIS) and artificial neural network (ANN). Three fabric parameters: proportion of polyester in weft yarns, weft count, and pick density are used as input parameters for predicting fabric UPF. Two levels (low and high) of membership function for each of the input parameters are used to reduce the complexity of ANFIS. The eight linguistic fuzzy rules trained by ANFIS are able to explain the relationship between fabric parameters and UPF. A comparison between ANFIS and ANN models is also presented. Both the models predict the UPF of fabrics with very good prediction accuracy in the testing data sets.

scholarly journals Antimicrobial Activity and Barrier Properties against UV Radiation of Alkaline and Enzymatically Treated Linen Woven Fabrics Coated with Inorganic Hybrid Material

Molecules ◽  
2020 ◽  
Vol 25 (23) ◽  
pp. 5701
Author(s):  
Joanna Olczyk ◽  
Jadwiga Sójka-Ledakowicz ◽  
Anetta Walawska ◽  
Anna Antecka ◽  
Katarzyna Siwińska-Ciesielczyk ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Uv Radiation ◽  
New Technologies ◽  
Barrier Properties ◽  
Dip Coating ◽  
Sem Analysis ◽  
Woven Fabrics ◽  
Protection Factor ◽  
Ultraviolet Protection Factor ◽  
Harmful Effects

One of the directions of development in the textiles industry is the search for new technologies for producing modern multifunctional products. New solutions are sought to obtain materials that will protect humans against the harmful effects of the environment, including such factors as the activity of microorganisms and UV radiation. Products made of natural cellulose fibers are often used. In the case of this type of material, it is very important to perform appropriate pretreatment before subsequent technological processes. This treatment has the aim of removing impurities from the surface of the fibers, which results in the improvement of sorption properties and adhesion, leading directly to the better penetration of dyes and chemical modifiers into the structure of the materials. In this work, linen fabrics were subjected to a new, innovative treatment being a combination of bio-pretreatment using laccase from Cerrena unicolor and modification with CuO-SiO2 hybrid oxide microparticles by a dip-coating method. To compare the effect of alkaline or enzymatic pretreatment on the microstructure of the linen woven fabrics, SEM analysis was performed. The new textile products obtained after this combined process exhibit very good antimicrobial activity against Candida albicans, significant antibacterial activity against the Gram-negative Escherichia coli and the Gram-positive Staphylococcus aureus, as well as very good UV protection properties (ultraviolet protection factor (UPF) > 40). These innovative materials can be used especially for clothing or outdoor textiles for which resistance to microorganisms is required, as well as to protect people who are exposed to long-term, harmful effects of UV radiation.

Anti-ultraviolet properties of β-cyclodextrin-grafted cotton fabrics dyed by broadleaf holly leaf extract

2020 ◽  
Vol 90 (21-22) ◽  
pp. 2441-2453 ◽  
Author(s):  
Jinshu Liu ◽  
Xiaoyan Ma ◽  
Wenzhao Shi ◽  
Jianwei Xing ◽  
Chaoqun Ma ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Leaf Extract ◽  
Cotton Fabrics ◽  
Sodium Hypophosphite ◽  
Crosslinking Reaction ◽  
Ultraviolet Spectrophotometry ◽  
Protection Factor ◽  
Ultraviolet Protection Factor ◽  
Ultraviolet Protection ◽  
Macerated Extract

The aim of the study was to investigate the anti-ultraviolet properties of β-cyclodextrin-grafted cotton fabrics dyed with broadleaf holly leaf extract. Flavonoids were extracted from broadleaf holly leaf by maceration and a stoichiometry of 1:1 inclusion complex with β-cyclodextrin was formed. Characterized by the fluorescence spectrum and ultraviolet spectrophotometry, the fluorescence intensities and ultraviolet absorption of the macerated extract were enhanced by increasing the amount of cyclodextrin. Cotton fabrics were grafted with β-cyclodextrin through a crosslinking reaction based on citric acid in the presence of sodium hypophosphite then dyed with the macerated extract of broadleaf holly leaf used as a natural ultraviolet absorbent. The anti-ultraviolet property of fabrics dyed by a macerated extract was characterized in terms of the ultraviolet protection factor. It was noted that the cotton fabrics grafted with β-cyclodextrin exhibit enhanced anti-ultraviolet and wrinkle recovery properties compared to the unmodified samples and show an excellent durability against 30 washing cycles, accompanied by a loss of tensile strength.

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