The purpose of this project was to develop a chair for industrial sewing machines to suit the physiology of industrial machine users. And to study the satisfaction of industrial sewing machine users with adjustable chairs. The representative sample was student in Industrial Textile and Fashion Design at RMUTP as 40 samples. By allowing the sample group to sat on the sewing chair for the industrial machine and evaluate it by questionnaire the satisfaction with the use of the adjustable chair for the industrial machine. Statistics were usedfrequency percentage mean and standard deviation. The results of the study showed that the satisfaction assessment that affected the adjustable Industrial sewing machine chair. The most useful aspect was the adjustable chair which could be move to as scored as an average of 4. 13 at a high level. The safety of usage is average 3. 98 at a high level. The highest strength was durability and strength while using with an average of 4.2 in a high level. The highest material aspect was that the strong structure with an average of 4. 13 at a high level. The most beautiful aspect was the color of the adjustable chair which was beautiful and suitable with an average of 3.95 at a high level. And the overall summary of satisfaction was 4. 15 at a high level. Based on the research results using an industrial sewing machine table with a height of 73 cm and a 3 level adjustable chair was level 1 height 45 cm level 2 height 48 cm level 3 height 51 cm. It could be conclude that the level 1 chair was suitable for users with a height of 145-153 cm. The level 2 chair was suitable for users with a height of 154- 161 cm and a level 3 chair suitable for users with a height of 162- 170 cm

This research aims to design and development of Industrial sewing machines to use for people with disabilities. Including study of Efficiency and performance of the equipment the installed sewing to assist in the sewing machine for disabled legs Conducting experiments by the target audience disabled leg from accident and leg disability from birth must use a wheelchair. By the disabled been experimenting with industrial sewing machines. For disabled legs Sew aprons in the 2 weeks. The results showed. That sewn of aprons by industrial sewing machinesfor person of disabled legs Can be sewnusing time of sewing/piece in week 2 of disabled leg from accident. And leg disability from birth. Decrease 25.09 percent and 40.07. and the number of pieces that have increased of industrial from period use of sewing machines. The average satisfaction of the design and use of industrial sewing machines for person of disabled legs are highest levels of 4.5 and 4.6 respectively

The objective of the research was to identify the optimized thread tensile values for the setup of Model D – We 1218-55 computerized 18-needles sewing machine in order to minimize a number of times the machine halts. The cause of the sewing machine halting which reduced the efficiencies of the machine was found to be torn threads. In order to maximize the efficiencies the experimental design technique was utilized to find the optimal values for five types of cloth: polo tc-cool cotton jacket and shirt. The method involved three nested designs which are the type of thread number of sewing layers and thread-hole size. The three thread tensile levels experimented were low (2 oz.) medium (5 oz.) and high (8 oz.) and the response was the number of times the machine halted in the span of 30 minutes. The ANOVA (Analysis of Variance) used for the experimental design showed that the three factors significantly affected the machine’s halt. The number of times the machine halted was used to create Surface Plot with polynomial trend-lines and the quadratic equation was applied to determine the optimal value for each type of thread number of sewing layers and thread-hole size. The values obtained were then set for another experiment the results of which were that the sewing machine halted less frequently and the efficiencies thus increased about by 77.01%.

The objective of this research is 1) to develop Phajok designs by computer sewing machine 2) to study the opinions of consumers towards Phajok designs which have been developed by way of computer sewing machine and 3) to study the satisfactions of consumers towards lady hand bag products with Phajok designs developed by way of computer sewing machine. Sampling groups are 400 ladies in Bangkok Metropolis and its perimeter who are interested in Thai fabrics. Tools used are Questionnaires and 15 models of lady hand bag product prototype; data analysis by using statistics on percentage mean and standard deviation with the actions by conducting the study on the original 15 Jok Designs and then developing the sewing by computer on 3 designs for decorations on lady hand bags in 5 different designing models whereby 15 developed modeling bags are obtained. Result of the research finds that most of the consumers are 41 years old and over; their educations are in Bachelor Degree level or its equivalency; their marital status are married; occupations as the private enterprise staffs earning incomes ranging from 15001 Baht to 20000 Baht and buying Thai clothing goods from tourist attraction places; reasons for buying are to take them for giving as souvenirs and have ever bought Phajok products; thing for consideration in buying Phajok is the designs; Phajok are utilized in making dresses or decorating the dresses; interested in Phajok designs developed by computer sewing machine and are of the opinions Phajok can be used as the products in dress decorating. On the selections in buying the lady hand bangs consumers are found to consider the aspect of the model with the likes on the decorations with the designs sewn by silk threads and are of the opinions that the model of the lady hand bags decorated with Phajok designs developed by way of computer sewing machine is suitable. Result of the analysis on the satisfactions of the consumers towards lady hand bags sewn with Phajok designs developed by way of computer sewing machine of all models are in high level.