การย้อมสีเส้นตอกไม้ไผ่ด้วยสีธรรมชาติจากดอกอัญชันสำหรับผลิตภัณฑ์ดอกไม้ประดิษฐ์

บทคัดย่อ

This study has objectives to 1. study a method of dyeing the bamboo strips with natural colors from butterfly pea, 2. develop artificial flower products using dyed bamboo strips, and 3. study the satisfaction of questionees towards a prototype. A methodology for phase 1 the study a method of dyeing the bamboo strips with natural colors from butterfly pea is studying three types of adhesion consisting of salt, alum, and ash water at three concentrations which are 1%, 10%, and 20%. Then, color intensity before and after dyeing is measured and analyzed using Ducan’s multiple tests. Phase 2 is the development of artificial flower products using dyed bamboo strips and phase 3 is the evaluation of satisfaction towards the product prototype. Tools are interview forms, product drafts, and satisfaction questionnaires. Samples are 20 representatives from the Wichak Bamboo  Weaving Community Enterprise Group who are selected using purposive sampling and 100 persons to evaluate the satisfaction towards the prototype who are selected using accidental sampling. Data is analyzed using frequency, percentage, mean, and standard deviation. Results present that suitable dyeing is boiling bamboo strands in dyeing water extracted from butterfly pea with the proportion of 100 ml per 1,000 ml of water at 100 °C for one hour. The average color intensity of each adhesion is significantly different based on the statistic (p≤0.05). Using salt at the concentration of 1% provides the lowest average lightness L*  of 55.72^a 1.56 which means the highest adhesion and a* of -0.89^a 0.55 that is negative and means the adhesion of green and b* of 3.57^a 1.56.  For the development of the prototype and satisfaction evaluation, the levels of satisfaction towards artificial flower products of orchids, lotuses, amaranths, hydrangeas, and tulips are very high, high, high, high, and medium respectively.