3/24/2023 0 Comments Does polyester absorb water![]() Superabsorbent polymers and their medical applications This particular aspect of home laundering has never been given much attention until now, but in the current changing scenario, these properties also have their importance. Home laundering also affects other properties, such as the texture, appearance, compression, friction, etc., of the terry fabric. ![]() Repeated washing of the fabric affects the water absorbing and retaining capacity of fabric. In addition to absorbency, other properties, such as texture, appearance, compression, friction, etc., are modern requirements. A fabric may become unattractive sooner than it becomes worn out. A customer may declare a fabric unusable if it loses its aesthetic appeal. The life span of any product plays a crucial role in its costing and sale. Terry fabric, which has become a luxury item in today's world, may easily wear out after repeated use, thus leading to a short life. How does terry fabric absorb high amounts of water? Does the number of loops alone affect the absorbency if it is made from high absorbent yarn? Does loop geometry affect the absorbency and water-retaining capacity of terry fabrics? Is there any interaction between the various factors contributing to absorbency? These are some of the issues undertaken in this research to understand the absorbency behaviour of terry fabrics. Still, the hunt is on to further improve the absorbency of terry fabric. A lot of effort, including use of zero twist and low twist pile yarns, has been made with the primary aim of increasing the absorbency of the fabrics. Static and dynamic water absorption, water retaining capacity, wicking, rate of absorption, etc., have all been studied in relation to fabric construction and yarn properties. Several developments have been made towards increasing the absorbency of terry fabrics. The absorbency behaviour of terry fabric refers to both the rate at which the fabrics absorb water and the total water retention ability of the fabric. Jitendra Pratap Singh, Swadesh Verma, in Woven Terry Fabrics, 2017 17.1 Introduction 5Ībsorbency and serviceability of terry fabrics The principle of this method is: a drop of water is allowed to fall from a fixed height onto the taut surface of a test specimen the time required for the water drop to disappear is measured and recorded as wetting time the average of five readings is taken the shorter the average time, the more absorbent the textile. Wettability or absorbency of the textile fabrics or yarns can be determined by this method. Standard Test Method for Surface Water Absorption of Terry Fabrics (Water Flow)ĪATCC Test Method 79–2000, ‘Absorbency of Bleached Textiles’ proposed a standard test method, which can be applied to determine the suitability of a fabric for a particular use, as in the case of gauze or toweling. ![]() Standard Test Method for Surface Wettability and Absorbency of Sheeted Materials Using an Automated Contact Angle Tester Read more Navigate DownĪbsorption – liquid absorbency time, capacity and wicking rate ( ASHRAE Handbook: Systems) A more critical examination of fabric absorbency can be achieved using a 50% or 65% sucrose solution, because the sucrose solution is more viscous and is absorbed more slowly than water, thus distinguishing between samples with very small differences in their water absorbency. ![]() The longer the time, the lower the absorbency. One sample should be measured at least five times to get an averaged result. The time starting from the moment the water drop touches the surface of the sample to the moment the water drop is completely absorbed by the sample (disappearance of the liquid reflection) is taken on a stopwatch. The sample under a set tension (mounted on an embroidery hoop) is placed vertically at the prescribed distance from the end of a burette with water. ![]() Sample conditioning is extremely important as the residual moisture on the sample to be measured can affect the absorbency results considerably. The absorbency of the fabrics is determined by the time the sample takes to absorb a fixed amount (usually a drop) of distilled or deionized water. Fan, in Fabric Testing, 2008 5.3.3 Absorbency 6 ![]()
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