The biosorption of Rhodamine B using modified water hyacinth roots was studied. The adsorption experiments were conducted in a batch setup. Parameters affecting the adsorption of Rhodamine B including pH of a solution adsorption time adsorbent dose and dyes concentration were investigated. With the 80 mg/L Rhodamine B solution of pH 6.0 adsorption time of 60 min and 0.10 g of modified water hyacinth roots the kinetic models pseudo-first order and pseudo-second order kinetic model were applied to examine the kinetic adsorption. The adsorption kinetic data correlates with pseudo-second order kinetic model. The Langmuir and Freundlich adsorption models were applied to describe the isotherms and isotherm constants. Adsorption isotherm data correlates with Langmuir adsorption model. The maximum adsorption capacity of modified water hyacinth roots for Rhodamine B was found to be 63 mg/g

This research studies dyeing with Thai herbs for UV protection properties in textile products applications and aimed to: study procedures and techniques for this; investigate the use of herbal plant for UV protection; study UV protection properties in fabrics dyed with Thai herbs that can protect against UV rays. The process involved dyeing from natural surplus materials (militia kityana leaves lemongrass leaves and areca palm seeds) extracting the dyes for use in silk dyeing with a mordant to increase the affinity of the dye and fiber then rating the percentage of UV light blocked. Finally the fabric was used to design clothes as a prototype for five Muslim outfits. The research team chose dyed silk fabric with the percentage of UV light blocked are 95.67 – 96.24 which is in good to excellent protection level. Five outfits were designed for this study: 1) Silk dyeing with dyes extracted from the lemongrass leaves – using the first method of fabric dyeing with clear muddy water 1% as mordant 2) Silk dyeing with dyes extracted from lemongrass leaves – using the fourth method of fabric dyeing with the fabric fermented for 30 minutes in mud before dyeing 3) Silk dyed with dyes extracted from areca palm seeds – using the first method of fabric dyeing with 3% tamarind water as mordant 4) Silk dyed with dyes extracted from areca palm seeds – using the fourth method of fabric dyeing with the fabric fermented for 30 minutes in mud before dyeing and 5) Silk dyed with natural dyes extracted from militia kityana leaves – using the first method of fabric dyeing with 1% tamarind water as mordant.

The objective of this research is to preparation of dye powder from natural dyes. The conditions of preparation of dye powder and properties of natural dye powder were studied. The natural dyes were used in this research containing of Lac Ebony heart wood Sappan heart wood Turmeric and dried Butterfly pea. The natural dyes powder were prepared by three methods; oven drying salt adsorption and salting out. The natural dyes powder were dyed on silk fabric and then characterized by colour strength (K/S) washing fastness and light fastness. The results showed that the dye powder from dried Butterfly pea could not be prepared by dye powder preparation used in this research because of the dye power was not stable. The dyes powder from Lac Ebony heart wood Sappan heart wood and Turmeric were prepared by all three methods. The oven drying and salting out methods showed higher K/S than salt adsorption method. And the K/S of dyes powder from oven drying and salting out methods were not significant. In the oven drying method showed good K/S on silk fabric dyed from the turmeric dye powder. And salting out method showed good K/S on silk fabrics dyed from Lac Ebony heart wood and Sappan heart wood dyes powder. The different dye powder preparation methods did not effect on the colour appearance. The washing fastness of dyed silk fabric from different preparation methods were not significant. The dye powder of Lac Ebony heart wood Sappan heart wood showed good light fastness and the Turmeric dye powder showed poor light fastness on silk fabric.

This research aims to experiment with natural dye from the longan leaves Color fastness UV protection Designed textile products from Textile dyeing of longan leaves. and to teach the dye from longan leaves for design and processing of textile products to the community under the concept of the creative economy. The study consisted of two parts The first part is Color fastness and UV protection from fabric dye from longan leaves. The second part is Designed textile products from Textile dyeing of longan leaves. The research area at Yu Wa San Pa Tong district Chiang Mai province area planted with longan. This research is part of the solution to the problem of waste longan leaves. In addition farmers have to produce compost leaves and fruits are often destroyed by the fire. Impact on air pollution and Haze occurred in Chiang Mai now. Natural dye extracted from longan leaves was applied to a silk fabric by exhaustion dyeing process. Aluminium potassium sulfate ferrous sulfate copper sulfate and stannous chloride were used as mordants. The dyeing was conducted with and without metallic salt mordants using three different mordanting methods pre-mordanting meta-mordanting and post-mordanting. The colour of each dyed material was investigated in term of the CIELAB (L* a* and b*) and K/S value. The color fastness to washing rubbing perspiration light and water of the dyed samples was determined according to ISO test method. The results show that the optimal results were achieved when dyeing at 80 ?C for 50 minutes and at pH 3. Silk fabric dyed in a solution composed of a Longan from leaves without mordant showed a shade of pale yellowish-brown while those mordanted with stannous chloride alum and copper sulfate produced a variety of medium to dark yellowish-brown color shades. However duller and darker brown shade was obtained with ferrous sulfate mordant. The color fastness to washing water perspiration and rubbing were good to very good. However the light fastness results showed fair level except fabric without mordanted whose colour change rating was poor. The results confirmed that natural dyes from longan leaves extract with metal mordants have potential applications in fabric dyeing and in producing very good UV-protective silk fabrics. The second part is research data collected from literature research related research and field data was collected by interviewing recording a career field research brainstorming sessions and participatory action research between the villagers to researchers. The findings presented by descriptive analysis. The result is Textile product design of longan leaves dyed fabrics must take into account the capacity of the group. The villagers have restrictions on the production of textile products. There is no potential for forming other products. In addition to the garment as well as the group was started. The natural dyes of the longan leaves is new knowledge for the group. Therefore textile products in the early to conclude that the textile products the group members have expertise in manufacturing mens casual shirts ladies casual shirts and scarf. Create patterns with a variety of tie-dye technique. The silk material used as the main material used is cotton minority. Users is a group of conservative tastes nature lovers and those with artistic taste. The procession design and production-oriented textile products are Green Design

Water Hyacinth Yarns and Their Transformed Materials Dyeing Machine for Developing Small and Medium-Sized Enterprises was a research project what an aim for producing a prototype dyeing machine. The machine was used at the small enterprise in Nakhon Prathom province. The dyeing machine was contributed by stainless steel. The outer dimension was 100 centimeters in height 130 centimeters in length and 90 centi-meters in width. The inner structure contains with perforate stainless steel drum. It had diameter as 80 centimeters with 90 centimeters length. The container capacity was 27 liters for the raw material as 10 kg of the dry Water Hyacinth Yarns or 5 kg of the dry Water Hyacinth roots. The machine was running test for reactive dyeing process at 80oC for 30 minutes. The machine was achieved for reduce time operation as 5 times and gas consumption as 2.38 times. The break-even point was 1.09 year and B/C as 2.22. Moreover it can solve the fuzzy yarns problem and the volatile smoke during the tradition dyeing. The knowledge was transferred to the stakeholders at the target area as “Chumchonjaksanpaktobchawha Bann klongnokkratum” enterprise in Nakhon Pra thom province. They were satisfied in this benefit in good to very good level.