Silk Degumming with Dried Latex of Carica Papaya Linn

Degumming process is a fundamental finishing process for silk yarn and silk fabric. The main objective is scouring the substrate such as silk gum (sericin), wax and some impurities from silk fiber.Degumming process is a fundamental finishing process for silk yarn and silk fabric. The main objective is scouring the substrate such as silk gum (sericin), wax and some impurities from silk fiber. The principle of degumming process is breaking the peptide linkage of amino acid in sericin structure into a small molecule, which is soluble in water. The hydrolysis reaction performed by acid and alkaline, but they have a big problem on the surface area of silk. Proteolytic enzyme be used to solve this problem but it has some disvantages such as it was using a specific condition and expensive. For this reason, this research chooses papain enzyme form dried latex of Carica payapa Linn. to degum the raw silk. The efficiency of degumming process was evaluated by determination of tensile strength and staining test with direct dyes (C.I. Direct Red 80). The result was revealed; the appropriate conditions for silk degumming with dried Carica payapa Linn.’s latex be recommended as follows: the amount of dried latex solution of 4 % owf at 75 degree Celsius for 30 minutes, in this condition was not harm to strength and fiber surface. The degummed fibers still had lustrous, soft and smooth surface

Preparation of Ceria Fibers Via Electrospinning Process

Electrospinning is an interesting technique with various potential applications. CeO2 fibers production was achieved via this technique.Electrospinning is an interesting technique with various potential applications. CeO2 fibers production was achieved via this technique. In this work, the prepared condition and the fiber morphology were investigated and described. The optimum condition was 15 kV, 7 cm in distance between needle tip and ground collector, 50 wt% of i-propanol in the co-solvent. The obtained fibers were continuous with a diameter of 900 nm. The smooth electrospun fibers produced were dried for one hour, and then calcined at 450 OC for 3 hours. The calcined fibers were reduced to 600 nm and cracked on the fibers. They were ceria fibers, what verified by EDX, and XRD pattern. They had high specific surface area to volume ratio, and monolith fibers, which is applied for catalytic applications

การพัฒนาและแปรรูเครื่องแต่งกายและส่วนประกอบการแต่งกายจากผ้าทอกะเหรี่ยง ภายใต้แผนงานวิจัย การจัดการองค์ความรู้ทางสิ่งทอในการพัฒนาและอนุรักษ์ภูมิปัญญาชุมชน กรณ๊ศึกษาผ้าทอกะเหรี่ยง

รายงานวิจัย -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2556This research had an objective to research and development the garments and accessory products from Karen Woven Fabric. There were 3 product types as dress:D, shirt:S and accessory:A what they were 15 styles/type. This research was survey research that used the Index of item-Objective congruence questionnaires (IOC) as the major tool. Addition, the computer graphic aided was used to design the products under the design principle. The results showed the good level consumer responsibility. The consumer favored of the products followed: for dress was D8 > D7 > D3 > D5 > D1 > D4 > D2 > D10 > D11 > D6 > D14 > D10 > D13 > D12 > D15, for shirt was S8 > S7 > S3 > S5 > S1 > S11 > S10 > S9 > S1 > S4 > S6 > S14 > S13 > S15 > S12 and accessory was A5 > A2 > A4 > A1 > A3 > A11 > A6 > A7 > A10 > A14 > A15 > A8> A9 > A13 > A12. Moreover, the whole satisfactions level of the consumer for all products in term of the useful, modern style, Karen conservation style and color theme were good. All of results were transfer to the target group at Bann YangNamkladtai school, Phetchaburi province. The transfer group was satisfied and gain the worth knowledge. This cognition was a way for building the career and produces the commercial products in the future.Rajamangala University of Technology Phra Nakho

Preparation of Thickener from Dry Dioscorea hispida powder for Textile Printing

วารสารวิชาการและวิจัย มทร.พระนคร, 8(2) : 107-114The objective of this research was to study the feasibility for producing the dry Dioscorea hispida powder as a thickener. The product was investigated in their properties, the compatibility with dye and chemicals in print paste, color appearance by indicated with color hue value, the time durability storage, the residual substance after washing treatment and the color fastness in washing and rubbing methods. The results shown the dry Dioscorea hispida powder was used as thickener that it was the good characteristic like the famous textile printing thickener as alginate. The dry Dioscorea hispida powder thickener was 10%w/w had the equivalent viscosity as 8%w/w alginate. It had 3 days stability storage and good compatibility for direct dye, reactive dye, acid dye, and disperse dye print pastes. The color appearances were corresponding with owned hue in color index databases. The thickener was completely in washing process. And, the washing and rubbing fastness were good to excellent.Rajamangala University of Technology Phra Nakho

Investigated on Removal of Residual Dyestuff in Effluent from Dyeing Process: Physical Method

รายงานการวิจัย--มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2553This study was investigated the pretreatment of dye effluent from dyeing process by activated carbon. The study parameters were color strength, operating time, and types of dyestuff such as direct dye, reactive dye, acid dye, basic dye, and disperse dye. The results found, the activated carbon was achieved to adsorb the colorant. The pretreatment process used 100 – 200 gram activated carbon to one liter of dye effluent. The contact time was 2 hours at room temperature. The dyeing conditions had an influent for pretreatment process. The acidic condition was favored than neutral and basic condition. In addition, the dye removal efficiency was basic dye > acid dye > disperse dye > direct dye > reactive dye.Rajamangala University of Technology Phra Nakho

การพัฒนาสารข้นจากแป้งกลอย

รายงานวิจัย -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2553Thickening agent is a substance, when it was using to increase viscosity of an aqueous solution but other properties were not substantially modifying. it had major roles in textile printing process via adjust the print paste viscosity. transfer dye and auxiliaries into fabric. Thickening agent type starch had used in textile printing but it was a troublesome production also high cost. In this research had and feasible study to placement of dry Dioscorea hispida Dennst for textile printing processes such as direct dye and reactive dye printing on cotton woven fabric, acid dye printing on nylon woven fabric, and disperse dye on polyester woven fabric. The results found, dry Dioscorea hispida Dennst successfully applied used as thickening agent, stable time to collected as 3 days. The textile printing quality and viscosity propertied equivalent as the industrial thickener at 10% of weight print paste (owp). The steam fixation applied for direct dye and reactive dye printing at 100c for 10 minutes, and gor flue fixation foracid dye and disperses dye and disperses dye printing at 150c for 5 minutes. The printed quality was good at rubbing fastness, true color appearance. Theresidual paste was removed completely in washing off process.Rajamangala University of Technology Phra Nakho

การบำบัดน้ำเสียจากกระบวนการฟอกย้อมด้วยเทคนิคโฟโตแคตตาไลติคร่วมกับกระบวนการดูดซับ

รายงานวิจัย -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2553Dye effluent treatment with photocatalytic technique and adsorption process had an objective for studying the combination process between Titanium dioxide and activated carbon from dye effluent. The dye effluents were prepared from the direct dye, reactive dye, acid dye, disperse dye, and basic dye. The effluent dyes from the completely dyeing process at 1 % owf initially. All of dye structures were azo. From the study, direct dye and reactive were successfully using combination process between photocatalytic technique and adsorption process whereas disperse dye favored in adsorption process. However, acid dye and basic were ignored in this experiment cause of they were a bit of dye concentration in their effluent. The optimum condition for direct dye was 10g/l Titanium dioxide for 6 hours and 5 g/l activated carbon for 6 hours continuously. Reactive dye was performed in continuous condition as 10g/l Titanium dioxide for 6 hours and 10 g/l activated carbon for 6 hours. Disperse dye was the particular process in adsorption by activated carbon 15 g/l for 4 hours. It was summarized that the treatment of photocatalytic technique and adsorption process were upon on the type of dye.Rajamangala University of Technology Phra Nakho

การเตรียมผ้าไม่ทอจากใบอ้อย

รายงานวิจัย -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2552This research was concerned with the fiber separation and non-woven preparation form sugar cane's leaves. The separation process was carried out by chemical pulping method at 100 degree Celsius. In order to study the suitable condition for separation process, the concentration of sodium hydroxide ranging from 0 -20 grams per liter and boiling time 15, 30, 45, 60, 75, 90, 105 and 120 minutes were performed. Web formation process was performed by wet laid method and polyvinyl alcohol was selected as binder in web bonding process. in order to study the suitable amount of binder in bonding process, concentration of polyvinyl alcohol ranging from 1, 2, 4, 6, 8 and 10 % w/v coated on web surface and cured at 120 degree Celsius. Bursting strength as well as physical properties evaluation of non-woven fabrics was performed. For antimicrobial finishing process was performed by spray method and pad method. The finishing result was evaluated by MTCC test method 147-1998 (Qualitative) and 100 -1999 (Quantitative) The result was found that appropriate condition for fiber separation was recommended as follows: the amount of sodium hydroxide of 10 grams per liter and boiling time 60 minutes. The suitable amount of polyvinyl alcohol for web bonding process was 2 % w/v. Bursting strength of non-woven fabric was 53 kN/m 3 and padding method was a suitable method for antimicrobial finishing (antimicrobial area 0.3 millimeters )Rajamangala University of Technology Phra Nakho

การผลิตกระดาษผักตบชวาเพื่องานบรรจุภัณฑ์

รายงานวิจัย -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2554งานวิจัยนี้เรื่องการพัฒนากระดาษผักตบชวาเพื่องานบรรจุภัณฑ์ ได้แนวคิดจาการนำผักตบชวามาใช้ประโยชน์ แต่จากการศึกษาที่ผ่านมาพบว่าปริมาณเยื่อผักตบชวามีน้อยจึงมีแนวคิดที่จะเพิ่มปริมาณเยื่อด้วยวัสดุเหลือใช้จากการเกษตรเช่นสับปะรดและกล้วย การทดลองทำโดยการเตรียมเส้นใยด้วยโซเดียมไฮดรอกไซด์ปริมาณ 10 g/1 อุณหภูมิ 100 C เวลา 3 ชั่วโมง ฟอกเยื่อด้วยไฮโดรเจนเปอร์ออกไซดฺปริมาณ 5 g/1 อุณหภูมิ 90 C เวลา 30 นาที และเพิ่มคุณสมบัติด้านการกระจายเยื่อด้วยสารช่วยกระจายเยื่อ (Acramin) 5 g/1 และสารเพิ่มความแข็งแรง (น้ำถ่านกัมมันต์) 5%w/v จากการศึกษาพบว่า กระดาษที่มีคุณสมบัติเหมาะสมต่อการสำไปในงานบรรจุภัณฑ์ได้ องค์ประกอบดังนี้ ปริมาณเส้นใยฝักตบชวา 70 % เส้นใยสับปะรด 10 % เส้นใยกล้วย 20 % เพิ่ม คุณสมบัติด้านการกระจายตัวด้วย Acramin 5 g/1 เพิ่มความแข็งแรงด้วย น้ำถ่านกัมมันต์ 5 %w/v กระดาษที่ได้เที่ยมเท่าคุณสมบัติของกระดาษคราฟท์ K1 คือ ความหนา 0.537 มิลลิเมตร ความต้านทางแรงดันทะลุ 35.4 กิโลนิวตันต่อตารางเมตร ความคงทนต่อการฉีดขาด 356 มิลลินิวตัน น้ำหนัก 185 กรัมต่อตารางเมตร มีความเหมาะสมที่จะนำไปใช้งานเป็นกล่องสินค้าทั่วไป หรือกล่องสำเร็จรูปRajamangala University of Technology Phra Nakho

การพัฒนาหม้อนึ่งแรงดันสูงเพื่อการสกัดสีและย้อมสีธรรมชาติภายใต้แผนงานวิจัย การจัดการองค์ความรู้ทางสิ่งทอในการพัฒนาและอนุรักษ์ภูมิปัญญาชุมชน กรณีศึกษาผ้าทอกะเหรียง

รายงานวิจัย -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2556This research had an aim to develop an autoclave for using in natural dyes extraction and dyeing process. The autoclave used the stainless steel as the major material what it was a noble durable material and good resistance for the chemical used in the processes. The achievement results showed by the comparison data between the conventional process and the development using autoclave in term of extraction efficiency, deep of shade (K/S), time equivalent, process time and amount of gas consumption saver. The knowledge from the research would transfer to the target group at Bann Yang Nam Klad Tai, Phetchaburi province. The results were following as 1. For the extraction process: the extraction process using 100oC for 45 min. They obtained product was the same dye quality but the autoclave process was smaller water evaporation as 26.71% whereas the conventional process was 41.99%. 2. For the dyeing process: All condition from the autoclave using make a deeper dye shade (K/S) than conventional process. The dyeing time equivalent as 15 minutes to make the depth shape via autoclave process as alike the conventional process for 45 min. 3. Saving time and gas consumption: the autoclave process could save 66.67% time process and 88.99% amount of gas consumption. 4. The Complacency for knowledge assignment: the satisfaction level in the content, time, and period was good. Furthermore, the utilization, the instructors, and the value obtained were excellent. This research accomplished the study objectives. The results were not only corresponding to energy conservation but them also reducing the chemical toxic and pollutant vapor inhalant to the worker.Rajamangala University of Technology Phra Nakho