Water Repellent Finishing of Nylon 66 for Umbrella

Fluorocarbon-based compound was used in this experiment to obtain water-repellent finish on nylon (Nylon 66) fabric intended for use as material for umbrella. This compound polymerizes when cured under suitable condition to form a film of low surface energy which subsequently lowers the critical surface tension of solid and hence renders it water-repellent and oil-repellent. The material was treated with finishing liquor containing: 10, 20, and 40 g/l, and then was subjected to various tests to evaluate the result. It was found that the best result was obtained by the use of fluorocarbon as much as 40 g/l. (Yanti W, Yayu R, Yullia P)

Water Repellent Polyester/Cotton Jacket

Water-repellent finishing is a chemical process by which a certain kind of textile material is made resistant to water penetration but at the same time still allows transportation of air. Fabric made of polyester-cotton is in general considered more comfortable than that of polyester alone. In this study, fluorocarbon-based chemical (Aversin KFC-I) was used to generate water-repellent properties on polyester-cotton fabric. This particular chemical has good properties as water-repellent finish: can be used for polyester-cotton fabric, good water-repellent properties, and does not change the color of the treated fabric. The addition of additives such as softener to the finishing liquor often produce an adverse effect to water-repellency, so experiment was also performed to investigate the effect of silicon type softener (Silicone N-100) to water-repellency. The data shows that the best result was obtained by the use of 90 g/l Aversin KFC-I without the addition of softener. Silicone N-100 only slightly improves the handle but it decreases the water-repellency of the treated fabric, which is obviously observed at higher concentration of Aversin KFC-I (90 g/l). (Esti Yuliani, Fernando S, Fina Dwi N, Ica Yuniarti)

Flame Retardant and Soil Release Curtain From 100% Polyester

Curtain is one of the most familiar examples of textile application in interior design and home decoration. It serves the purpose based on aesthetic as well as functional performance. Basically it provides a cover for a window to keep the light out or prevent people in the house from being seen by others outside. In addition to these, curtain must also meet some minimum requirements in relation to fire hazard; it must not propagate flame in case of fire. This study was directed toward the application of organic/inorganic salt of phosphor and perfluoro alkyl acrylic copolymer to obtain flame-retardant and durable-press as well as soil-release fabric made out of 100% polyester. The higher the concentration of chemicals used in the finishing the more pronounced the results: flame-retardancy, stiffness, and crease recovery angle (crease resistance) as well as soil-release ability. (Maskur, Muhamad Sofkhal Jamil, Mujib Islani, Risky Rinaldy)

Soil Release and Crease Resistant Pillow Slip

A pillowslip is a cover for a pillow, made of cotton or other fabric, that can be removed and washed. It adds an aesthetic value as well as provides protection to the pillow which otherwise looks dull and may cause some difficulties when gets dirty. The purpose of this work is to develop a process by which 100% cotton fabric, which is intended for use as a material for pillowslip, has the ability to resist creasing during its use and to release soil easily when washed. The type of dirt or soil that develops on a pillowslip normally comes from the perspiration and dust. In this experiment, we used water- and oil-repellent agent (Oleophobol SL) to impart soil-release property to the fabric. Silicone-based softener was added to improve the handle, which normally becomes somewhat stiff if fluorocarbon was used alone. The treated fabric was subsequently evaluated by its absorptivity, crease-resistance, stiffness, tensile strength and its fastness to crocking. It was found that the best result was obtained by treating the fabric with 30 g/l solution of Olephobol SL. The fabric was first impregnated with the finishing liquor at WPU of 60% and cured at 170°C for 45 seconds. (Selly, Sigit, Sri W, Ujang GP)

Water Repellent Polyester for Umbrella

In this work, we studied the application of perfluoro alkyl acrylic copolymer (Aversin KFC-I), a water-repellent agent, on 100% polyester fabric. The purpose of the study is to find an optimum recipe of water-repellent finishing that gives the fabric qualities required by an umbrella. The material for an umbrella is normally made of nylon or cotton. The latter is in general more expensive than the former. In addition to cost factor, cotton is normally much heavier than nylon, especially when gets wet. Polyester may offer some advantages over nylon both technically and economically. Technically, it has a lower moisture regain, which means that it retains less water than nylon does. It was found from the experiments that the best result was obtained by the use of 50 g/l Aversin KFC-I. Spray test showed a value of 100, which means wetting does not take place on the surface of 100% polyester fabric of concerned. (Ami Sebastian, Ari Rahmasari, Dini Nursari, Dreta Wulandari)

Quality Improvement for Mail Bag by Water Repellent Finishing Using Fluoro Chemical and Melamine Resin

Mail bag requires certain qualities to serve its purpose, one of which most important is that it must provide sufficient protection for postal material contained in it. Water-proof, in this case, is extremely important especially in region like Indonesia. Such a property is normally provided by treating mail bag, which is usually made of canvas, with wax emulsion. This type of coating is not permanent, in the sense that it may be removed either by rubbing and/or other severe condition during its use. Chemical treatment with fluorocarbon and melamine resin was proposed to improve its water-proof effect. The experiment shows that fluorocarbon and melamine resin can work together in improving the quality of mail bag. (Aris Hudayana, Aryaji, Berlian Zain, Eka Diasy)

Soil Release Baby Apron

Some of the most important features required for babies products are safety and comfort. In addition to that, textile products for babies require good stain release mechanism due to risks of food spill on the material on wear. Aversin KFC-I is a perfluoro alkyl acrylic copolymer that gives water- and oil-repellent effect and is safe for human, even for babies. The purpose of this study is to investigate optimum condition for stain-release finishing of polyester-rayon fabric intended for baby apron. The addition of silicon as a softener decreases stain repellency of finished product. The permanent effect of finished product is strongly influenced by the addition of dimethylol dihydroxy ethylene urea (Decaresin) as cross-linking agent. It was shown that the best result in this circumstances is obtained by the use of Aversin KFC-I at 60 g/l, DMDHEU (Decaresin) 30 g/l, and magnesium chloride 15 g/l. (Achmad Fadjry, Anita Puspita, Depi Natalia P, Emma Sukmawati)

Rot Proof and Soil Release Finishing for 100% Cotton Socks

Socks made from cotton offers more comfort in the sense that it readily absorbs sweat produced during its use. This is primarily due to the presence of hydroxy groups in the molecular structure of cotton fiber. This group may also form hydrogen bond with other polar molecules or particles such as fats, soil and dirt. Another consequence of the presence of hydroxy groups is that it is susceptible to microbial attacks under suitable condition like warm temperature and moist. The purpose of this study is to investigate ways of producing rot-proof (odor-free) and soil-resistant socks by chemical treatment. Fluorocarbon-based chemical (Oleophobol SL) and copper sulphate were used in this study as soil-resistant finish and rot-proofing agent respectively. It was found that 50 ml/l Oleophobol SL and 3,95 g/l CuSO4 was adequate to impart the above mentioned properties to cotton fabric as shown by reflectance data and tensile strength after soil burial. (Nia Khairun Nisa, Nur Fitri Yanti, Rina Prastiwi, Sari Nengsih)