Papers by Keyword: Cotton

Abstract: Cellulose and TiO₂ nanoparticles were coated on the surface of cotton fabric for photocatalytic self-cleaning. Cellulose-TiO₂ dispersion was prepared by mixing TiO₂ in cellulose solution (Cellulose in 60%H2SO₄ solution). Surface morphology of Cellulose-TiO₂ nanoparticles coated sample was analyzed in specimen by SEM. White particles appeared on the surface of the cotton fabrics confirmed that TiO₂ was coated successfully. Orange II dye was used as stain and its degradation was observed under UV light. Washing study showed that self-cleaning properties are stable with 1, 3 and 5% TiO₂ coated samples. Air and water vapor permeability was not decreased significantly after coating. Tensile strength also was increased significantly after coating.

Abstract: Warp yarn of cotton samples were printed with pigment dyes has been investigated. The printed warp yarn was weaved by using white cotton yarn as a weft yarn. The physical properties were evaluated to testing in tensile strength and tearing strength of weaved samples, the test were determined according to ISO standard. The results showed that the tensile strength of three samples are shown to be in the range between 210 and 342 Newtons whereas tearing strength was in the range between 30 and 110 Newtons. The results indicated that the properties of printed samples (handling) were good to very good level.

Abstract: The purpose of this research was undertaken to use flour of wild taro corm (Colocasia Esculenta (L.) Schott) as a resist paste for batik on cotton fabric and using dye solution from pigment dyestuffs. Colour value, K/S values, sharpness of cotton batik fabric were evaluated. The washing and rubbing fastness of the batik fabric was also evaluated. From the result of experiment it can be concluded that the pattern at resist area of cotton batik fabrics show sharpness. Colour fastness to washing and rubbing were ranging between good to very good level. Pigment dye solution can be painted on cotton fabric by using batik technique.

Abstract: In this research work, effect of plasma on metal absorption of cotton fabric is investigated. For this purpose the Air and Nitrogen plasma were used. Cotton samples were treated with the optimum conditions of plasma. Then both treated and untreated samples were inoculated by Silver and Iron metallic salts. The amounts of metal particle on the surface of samples were analyzed using Inductively Coupled Plasma (ICP) and Scanning Electron Microscope (SEM). The results show that, air plasma is more effective as compared with Nitrogen plasma for improving the metal absorption of cotton fabric. It can be concluded that, plasma can be a useful method for improving the sorption active materials properties.

Abstract: The pad dyeing offers the most economical and convenient method of dyeing cotton fabric. The energy and water consumptions are at the lowest, thus rendering it more eco friendly. The dyeing of cotton fabric was carried out with dye extraction from the uncaria gambir by using two padding techniques, namely the pad-batch and pad-cure techniques under different conditions. The effect of dyeing method and mordant on color strength and colorimetric parameters (L*, a*, b*, and ΔE) were evaluated. The color fastness to wash, light and perspiration after dyeing the cotton fabric treated with the mordant was determined according to AATCC test method. The study showed that the color strength (K/S) of the dyed cotton fabric using pad-cure method higher than those dyed cotton fabric using pad-batch method. Meta-mordanting showed increase dye uptake and color fastness of cotton fabrics.

Abstract: This paper reports on the moisture management properties of fabrics made from yarns of 100% cotton, 100% bamboo and combination of bamboo and cotton yarns. The fabrics were knitted on a circular knitting machine and scoured before measuring them for moisture management capability, air permeability and water vapour permeability. The results showed that all fabrics have good overall moisture management capability which classified them as water penetration fabric with small spreading area. The fabric consisting of the combination of bamboo and cotton yarns of 83/17 ratio gave the highest air and water vapour permeability.

Abstract: Water silicon sol was prepared in this paper using sol-gel technology, which tetraethoxysilane (TEOS) was used as precursor. And the sol-Si/direct dye was prepared by doping dyes into sol-Si, then the sol-Si/direct dye was used to dye cotton woven fabric. The particle sizes of sol-Si and sol-Si/direct dye, the effects of sol-Si dosage, electrolyte dosage on the dyeing performance of sol-Si/direct dye were discussed. It showed that the particle sizes was really stable and under the influence of sol-Si the fastness were improved evidently, and the K/S value can be able to meet the requirements.

Abstract: Cotton fabric samples were printed with pigment dye using warp yarn printing technique has been investigated. The color fastness was evaluated to testing in with washing, light, rubbing, water, and perspiration of the printed samples, the test were determined according to ISO 105-C06 A1S: 2010, ISO 105-B02: 1994, ISO 105-X12: 2001, ISO 105-E01: 2010, and ISO 105-E04: 2008 respectively. The results showed that the colour fastness to washing, water, and perspiration were in very good level whereas colour fastness to rubbing was in good. The results indicated that the properties of printed samples (handling and sharpness) were good to very good level.

Abstract: Synthesis of carbon fibers of cotton by chemical vapor deposition (CDV) method is the main focus of this study. Having ferocene as the catalyst, the study explored effects of synthesis process at different temperatures (750°C, 850°C and 950°C). Analysis of size, shape and structure were conducted using scanning electron microscope (SEM), transmission electron microscope (TEM) and Raman spectroscope. The result showed that average diameter of carbon fibers tended to increase according to temperature. In addition, it was found that surface of the fiber is bend and helical. Also, higher temperature affected graphitic of the fiber.

Abstract: Cotton fabric was dyed with Liyuan Blue FL-RN reactive dye. The dye exhaustion and fixation percentages were calculated for all light, medium and dark shades. The dye shows very good exhaustion and fixation properties. Dyed samples were tested for light fastness property as per international standards. The results indicates the dye has a good light fastness property. The effect of UV absorber was studied in order to improve light fastness property. Cationic UV absorber CANFIX SUN was applied on the dyed cotton fabric by exhaust method. The results show that the color depth was similar after UV absorber treatment. In all the cases the use of UV absorber improved the light fastness of dyed fabrics as compared to untreated dyed samples.