The purpose of this research was to design and develop products from polyester yarn scraps according to an eco-economic design concept. The workpiece is formed by the compression molding machine used in the industrial system. Researchers studied the waste materials used in various processes of manufacturing in textile establishments to increase their value by designing a new product or by developing polyester yarn scraps. According to the research process with the upcycle method that focuses on using resources for maximum value by turning the scarps into new products and eco-design concepts to increase the value of plastic polymer waste one of the concepts of resource efficiency (4Rs) by recycling and design process. The research focuses on the process of polyester yarn scrap forming especially from the textile industry with the potential to be re formed to create new products with beautiful shapes and unique patterns. From polyester yarn scarps through the extrusion process. By using the compression molding machine with a compression force of 80 tons the temperature range and the time are controlled appropriately. Under the mold prototype hat from or flash mold.

This research is a qualitative research. The objective is to study and analyze information about The pattern of Pha Sin Tin Jok (Traditionally Sarong )Thai Yuan Saraburi cloth including the changes and the existence of the Thakok Thai Sarong Saraburi in the present (2017 - 2018). Using the concept of social and cultural change and the theory of globalization concepts for analysis. Research area is Mueang District and Sao Hai District Saraburi. The research population is Weaving sarongs Sarong user and local sages. Analytical study issues are Clothing culture in Thailand Saraburi Promotion from the government Pha Sin Tin Jok (Traditionally) Sarong Thai Yuan Saraburi style and pattern weavers and wisdom transfer. The research results are Saraburi is a province where Thai Yuan people from Chiang Saen Chiang Rai province Settled in the reign of King Rama I of Rattanakosin Due to war and have inherited the lineage until now. In Sao Hai District Saraburi is the district where most Thai people live and has a unique Lanna cultural foundation Whether language lifestyle food and beliefs In the folk textile Has a unique pattern that has been passed down for over 200 years. Clothing culture in Thailand Saraburi There is also a conservative costume. Especially on special occasions The pattern of Pha Sin Tin Jok (Traditionally Sarong )Thai Yuan Saraburi cloth remains the same style. From the era that migrated from Chiang Saen In addition there are other sarong fabrics that are used in everyday life namely woven sarong muk kai and kan. There is a succession of sarong weaving wisdom from the generation to the present most of which are woven with flowers. In the ancient pattern there is a conservation of ancient Pha Sin Tin Jok Thai Yuan Saraburi by re-woven according to the original pattern from the ancient Thai sarong that remains in Saraburi. Pha Sin Tin Jok Thai Yuan Saraburi has been promoted by various government agencies. There may be changes in the times that have changed with the adaptation to various product designs or the application of sarong work to the era. The existence of Thai people in Saraburi has seen the value of wisdom in their ethnicity. Together with promotion from various sectors That encourages Thai people to be proud Inspired in the conservation of Thai culture and arts. The establishment of Thai Folk Culture Hall in Saraburi The new weaving of the Sarawak sarong from the ancient Pha Sin Tin Jok Thai Yuan Saraburi style Including the floating market That shows the existence of the Thai culture of Saraburi living.