Nattadon Rungruangkitkrai

Eco-friendly Dyeing and UV Protection Properties of Wool Fabric Using Natural Dye from Eucalyptus

This research examined a dye extracted from eucalyptus leaves and its application to wool fabric using pad-batch and pad-dry techniques under various conditions. A wool fabric dyed in a solution containing eucalyptus extract gave a shade of pale yellowish brown except when it was dyed with FeSO4, resulting in a shade of dark grayish brown. The fastness properties of dyed fabrics ranged from good to excellent, while light fastness was fair to good. It was observed that the fabric had excellent ultraviolet protection factor (UPF) values. In addition, a darker colour provided by FeSO4 gave better protection because of its higher UV absorption.

Ecological dyeing of silk fabric with lac dye by using padding techniques

This research focuses on silk fabrics exhibiting different colour values and fastness properties. The samples were prepared by dyeing with lac as a natural colourant. Two padding techniques were used in the process, namely, the pad-batch and pad-dry techniques, under different conditions. Aluminium potassium sulphate, ferrous sulphate, copper sulphate and stannous chloride were used as mordants. The effects of differing dye concentrations added to the silk fabrics using a pre- and post-mordant method were studied and recorded. The colour fastness to washing, light, rubbing, water and perspiration of the dyed samples was performed according to the present ISO standard. Silk fabric dyed without mordant showed a pink shade, while those samples mordanted with stannous chloride and aluminium potassium sulphate displayed noticeably brighter red coloured shades. With the additional use of copper sulphate, the colour shade produced was violet, while darker grey shades were obtained by adding ferrous sulphate mordant. The test results regarding fastness properties ranged from fair to very good, while wash fastness ranged from very poor to poor.

Dyeing Studies with Eucalyptus, Quercetin, Rutin, and Tannin: A Research on Effect of Ferrous Sulfate Mordant

Natural dyes from Eucalyptus leaf extract, quercetin, rutin, and tannin were applied to silk fabric by pad-batch and pad-dry techniques under different conditions. Ferrous sulfate was used as a mordant. The dyeing properties were evaluated by measuring K/S and CIELAB values. In addition, the different fastness properties were evaluated. The effect of dyes at different concentration levels with respect to their colour strength was also studied.

Eco-Dyeing of Silk Fabric with Garcinia Dulcis (Roxb.) Kurz Bark as a Source of Natural Dye by using The Padding Technique

Silk fabrics were put through a process of dyeing with natural colorants extracted and used from the bark of the Garcinia dulcis (Roxb.) Kurz. Two padding techniques, pad-batch and pad-dry, were used under different study conditions. The effects of mordant agents used on the fabrics and the natural colorant in the dyeing process, color values, color strength, and the fastness properties of silk fabric were investigated and the results recorded in the following study. The results showed that color values can be changed using various metallic salts as mordants. The fastness properties ranged from fair to very good, while perspiration and light fastness was poor to fair.

UV Protection and Fastness Properties of Silk Fabric Dyed with Garcinia dulcis (Roxb.) Kurz Bark by Using Pad-Dry Technique. A Focus on Effect of Mordant Concentration

This research was concerned with dye extraction from the bark of Garcinia Dulcis (Roxb.) Kurz and with the application of this dye for silk fabric dyeing by the pad-dry process. Silk fabrics dyed with Garcinia Dulcis (Roxb.) Kurz bark extract showed a pale yellow shade, while those dyed with alum and stannous chloride bright yellow and light yellow colour, respectively. Silk substrates dyed with CuSO4 gave a yellowishgreen colour, while those dyed with FeSO4 had a dark brown colour. The colour fastness to rubbing after dyeing the silk fabric treated with the mordant was investigated, the results of which showed fair to good fastness. The results confirmed that natural dyes from Garcinia Dulcis (Roxb.) Kurz bark extract have potential applications for fabric dyeing and producing ultraviolet (UV) protective silk fabric.

An Evaluation of UV Protection Property of Silk Fabric Dyed with Mangrove Bark (Rhizophora apiculata Blume) Extract

Natural dye extracted from the mangrove bark was applied to a silk fabric by an exhaustion dyeing process. The dyeing was conducted with and without metallic salt mordants using pre-mordanting. It was observed that with an increase in the dye concentration, the ultraviolet (UV) protection factor (UPF) values ranged between good and excellent for the silk fabric. In addition, a darker color, such as that provided by a CuSO4 mordant, gave better protection because of higher UV absorption. The results confirmed that natural dyes from mangrove bark extract with metal mordants have potential applications in fabric dyeing and in producing UV-protective silk fabrics.

Dyeing of Nylon Fabric with Natural Dye from Cassia Fistula Fruit: A Research on Effect Metal Mordants Concentration

The present paper deals with the application of natural dyes extracted from cassia fistula fruit or golden shower tree seed pods on nylon fabric. The dyeing properties were evaluated by measuring K/S and CIELAB values. In addition, the different fastness properties were evaluated. The effect of metal mordants at different concentration levels with respect to their colour strength was also studied. Nylon fabrics dyed with golden shower tree seed pods extract without mordant showed a light brownish-yellow shade, while those dyed with ferrous sulfate and stannous chloride brighter brownish-yellow colour. Nylon substate dyed with alum and CuSO4 gave a duller brownish-yellow colour. The fastness properties ranged from fair to good level.

Application of Tamarind Gum Thickener for Polyester Disperse Printing

Tamarind gums from different areas in Thailand (Uthaithani, Ang Thong, and Nakhon Sawan) as a thickening agent were used for printing on polyester fabric with disperse dye in comparison to the commercial tamarind gum from India as presently used in textile printing. All tamarind gum samples presented high polysaccharide and protein contents. The obtained results indicated that the properties as colour values, colour strength (K/S), overall fastness properties, handling, and sharpness of printed polyester fabric were good to very good levels. Only slight differences were observed between our tamarind gum samples and commercial one.

An Evaluation of Silk Fabric Dyed with Lac Dye by Using Pad-Dry Technique - A Research on Effect of Mordant Concentration

A natural dye extracted from lac was applied to a silk fabric by the use of pad-dry technique under different conditions. The dyeing properties were evaluated by measuring K/S and CIELAB values. In addition, the different fastness properties were evaluated. The effect of dyes at different mordant concentration levels with respect to their colour strength was also studied. 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 CuSO4 gave a purple red colour, while those dyed with FeSO4 had a reddish-gray colour. The fastness properties ranged from fair to good, while washing fastness was poor level.

Examining the Overall Moisture Management Capability of Fabric-Foam-Fabric Plied Material

Moisture management is an important behaviour during engineering of textile material. In case of intimate apparel (which is in close contact with skin), its moisture management property would affect the comfort behaviour during use. Fabric-foam-fabric plied materials are commonly used materials for making intimate apparel. In this study, we prepared different fabric-foam-fabric plied materials by plying polyurethane foams (non-laminated and laminated) with different fabrics. Their performance on absorption rate, accumulative one-way transport capability and spreading speed had been measured objectively in previous works using instrument (moisture management tester) according to AATCC Test Method 195. Based on the data, we can calculate the overall moisture management capability (OMMC) of the piled materials. Therefore, we reported the OMMC values of different plied samples and the results were discussed properly.