http://repository.rmutp.ac.th/handle/123456789/673 2026-04-04T15:17:55Z http://repository.rmutp.ac.th/handle/123456789/740 The Improvement Of Carbon Black From Waste Tires For Offset Printing Ink Using Coupling Agent Thinnoi, Pairin; Luangsaard, Nucharin; Komasatitaya, Juntira This work was aimed to improve the carbon black from waste tires for printing ink using coupling agent to disperse carbon black particle for making an oil-based offset ink. This experiment used 2 coupling agent, these were silane coupling and derivative fatty acid and used to produce offset inks for the 7 formulas. Formula 1 Commercail carbon black,Formula 2 carbon black was not washed by Nitric acid, formula 3 carbon black was not washed by Nitric acid and was added silane coupling agent, formula 4 carbon black was not washed by Nitric acid and was added fatty acid modified emulsifier , formula 5 carbon black was washed by nitric acid, formula 6 carbon black was washed by nitric acid and was added silane coupling, formula 7 carbon black was washed by nitric acid and was added fatty acid modified emulsifier. Bring all 6 formulas to test property to compare with offset ink commercial. First find the smallest particle of carbon black for 90 minutes. It was found that formula 4 took 20 minutes to make particles 12 micron and it is smalles particle of all. Then measured ink flow by Spread-O-Meter and measured diameter after 1 minute. It was found that formula 3 and 3 were 77 mm. and approximate commercial ink. Then measured tack of ink with Ink-O-Meter, it was found that formula 2, 3, 4, 6 and 7 were 2.4 and formula 5 was 2. Then measured viscosity and yield value of ink by Lary viscometer. It was found that formula 2 had 77 poise of ink viscosity and 670 dyne.s/cm2 of ink yield value that was approximate commercial ink. Finally measured Emulsification capacity (%) by Kershaw Water Pick up Tester. It was found that formula 6 had 74% and it was approximate commercial ink. บทความวิชาการ -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2553 2010-11-23T09:22:14Z http://repository.rmutp.ac.th/handle/123456789/739 Development of Additional Skill Toy from dust mite defending Fabric. Krajangpo, Wipada The objective of this research is to develop the additional skill toy from dust mite defending fabric. There are categories into three products : 1) Non decorated dust mite defending Fabric 2) Printed cartoon of dust mite defending Fabric 3) Covered colorful cloth of dust mite defending fabric. It can be divided into 3 patterns of this product : 1) the geometric style (triangle, square, hexagon), the ring toss style and the jigsaw style. The findings of this research were as follow : In term of children between 2-6 year old they like the covered colorful cloth of dust mite defending Fabric and they choose mostly the ring toss style, followed by the printed cartoon of dust mite defending Fabric and the ring toss style. In term of parents group have never seen this product and they think that the using material is suitable. Besides, they prefer the geometric style in vibrant colors for decorating the printing method and covered colorful cloth of dust mite defending fabric as well as the choosing product should realize the important health. Moreover, they prefer very much the decoration of printed cartoon of dust mite defending fabric in the ring toss. In case of product, they prefer the geometric about size, style and suitability. In term of general interested people group have never seen this product and they think that the using material is suitable. Besides, they prefer the jigsaw style in vibrant colors for decorating the printing method. Moreover, they prefer the decoration of covered colorful cloth of dust mite defending fabric in the geometric style. In case of product , they prefer the geometric about size, style and suitability.. รายงานการวิจัย--มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2553 2010-11-23T09:17:47Z http://repository.rmutp.ac.th/handle/123456789/738 Clothes Production from Remnant Fabrics Yanwiroj, Kanyuma This research was concerned about clothes production from remnant fabrics that can increase product value and meet market demand by using patchwork and appliqué technique. The research was conducted into 3 phases : data collecting, prototype production and consumer satisfaction evaluation. Questionnaires were used as instrument for data collecting. The first one the researcher inquired; what kind of products that consumer expected to see from remnant fabrics and collected data as market demand in order to produce 9 prototypes by using patchwork and appliqué technique. Finally, the prototype was provided to the sample group with the questionnaire in order to evaluate consumer satisfaction toward the prototype. The obtained data from the first questionnaire showed the most of sample was believed that product from remnant fabrics was a low price with poor quality and has no attractive design. The majority of sample interested in apparel product produced from remnant fabrics and sign of the zodiac was selected for decorative pattern. In comparison the result between the first and second questionnaire found that, patchwork and appliqué technique could change people attitude toward the product from remnant fabrics. The satisfaction of sample group towards prototype product was ranging in high level. The most of sample group agree to patchwork and appliqué was appropriate technique for transformation and value added to remnant fabric. A price of prototype estimated by consumer was 2,001 - 3,000 baht per item. รายงานการวิจัย--มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2553 2010-11-23T09:15:54Z http://repository.rmutp.ac.th/handle/123456789/737 Development of Batik Painting Technique Silk Fabric via Natural Dyes Klaichoi, Charoon; Padungtos, Wiroj The aim of this research is to paint silk fabric with batik technique using five natural dyes from margosa bark, lac, mango leaves, marigold and otaheite gooseberry bark. The pre-mordant and after-mordant techniques were used in this work. Ten mordants, Aluminum potassium sulphate, Copper (II) sulphate, Sodium dichromate, Tannic acid, Tartaric acid, Tin (II) chloride and Calcium acetate-monohydrate were applied. The batik fabrics were characterized in color strength, rubbing fastness, washing fastness, light fastness and stiffness. The result indicated that silk fabric painted with natural dye from margosa bark could use all 10 mordants to improve color strength and gave various shades of color. The silk fabric painted with natural dye from lac could not use all 10 mordants to improve color strength, but it gave various shade. The silk fabric painted with natural dye from mango leaves, marigold and otaheite gooseberry bark showed that almost 10 mordants gave higher color strength and various shade. The mordanting technique would give good fastness and reduce the stiffness of batik fabric. รายงานการวิจัย--มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2553 2010-11-23T09:13:37Z