Moisture management

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Moisture management or moisture-wicking is a functional property in textiles that enables them to transfer moisture from the skin, by capillary action through the fabric, spreading it over a large external surface area, which helps in drying quickly. [1] [2] The property is one of the most important for thermal comfort of textiles. [3]

Contents

Moisture wicking

Moisture-wicking clothes adsorb the liquid sweat on the skin and spread it along the surface of the fibres by capillary attraction to the external surface of the clothing, which is exposed to drier air, and where it evaporates more quickly, in comparison with a clothing item which absorba and retains the water in the fibres. Hence it avoids mass retention of the moisture and the associated feeling of dampness. [1] [4]

The transport of liquid water through an unsaturated textile is a combination of wetting and wicking, and diffusion of absorbed water through the fibre. Without wetting, there can be no wicking as the contact angle between water and fibre will have no tendency to pull he water along the contact surface. Capillary flow in the plane of the fabric is called in-plane wicking, transverse wicking, or horizontal wicking. Capillary flow orthogonal to the plane of the fabric may be called transplanar wicking, transplanar uptake, or transplanar flow. Several factors are known to influence wicking in a fabric. These include the arrangement of the fibres, the material of the fibres, the composition of the liquid, the shape and alignment of the wetted surface, the geometry of the channels through which wicking occurs, and absorption of the liquid into the material of the fibres. Ambient temperature and humidity also influence the rate of fluid transfer by wicking. [3]

The migration of moisture through multiple layers of clothing or through plated fabric is more complicated and is affected by the order of layers with different wicking and absorptive characteristics. [3]

Fibre properties: volume and arrangement

Mixtures of fibre types may be defined in terms of mass or volume ratio. This blending ratio is a strong predictor of moisture transport characteristics. Fibre arrangement is also important to moisture transport, and there are three basic classes, woven, knitted and non-woven fabrics. Wicking effects are governed by surface effects, so a large surface area of the fibres is more effective, and this is determined by fibre diameter and cross sectional form for a given mass of a given material. [3]


Moisture comfort

Moisture comfort in clothing is the preservation from the sensation of dampness. A study about the human body's response and sweating Hollies[ clarification needed ] suggests, '' When more than 50–65% of the body surface is wet, it feels uncomfortable.'' [5] [6]

Though cotton is a comfortable and skin-friendly natural fibre, its high absorbency ratio makes it very uncomfortable to wear once saturated. [7]

Cellulose and protein based natural fibres have a considerably higher water absorption capacity then most synthetic fibres. [3] :Ch.1

Application

An article of clothing with moisture-wicking properties helps in enhancing the performance of the wearer.[ clarification needed ] Hence it is helpful in sportswear and athleisure. [8] [9] [10]

Test

The property is quantifiable through various test procedures. Example tests are ISO 13029:2012, [11] and AATCC TM195. [12]

Objective test methods for water absorption and transport in fabrics include:

See also

Related Research Articles

<span class="mw-page-title-main">Textile</span> Various fiber-based materials

Textile is an umbrella term that includes various fiber-based materials, including fibers, yarns, filaments, threads, different fabric types, etc. At first, the word "textiles" only referred to woven fabrics. However, weaving is not the only manufacturing method, and many other methods were later developed to form textile structures based on their intended use. Knitting and non-woven are other popular types of fabric manufacturing. In the contemporary world, textiles satisfy the material needs for versatile applications, from simple daily clothing to bulletproof jackets, spacesuits, and doctor's gowns.

<span class="mw-page-title-main">Capillary action</span> Ability of a liquid to flow in narrow spaces

Capillary action is the process of a liquid flowing in a narrow space without the assistance of, or even in opposition to, any external forces like gravity.

<span class="mw-page-title-main">Lyocell</span> Regenerated cellulose fiber made from dissolving pulp

Lyocell is a semi-synthetic fiber used to make textiles for clothing and other purposes. It is a form of regenerated cellulose made by dissolving pulp and dry jet-wet spinning. Unlike rayon made by some of the more common viscose processes, Lyocell production does not use carbon disulfide, which is toxic to workers and the environment. Lyocell was originally trademarked as Tencel in 1982.

<span class="mw-page-title-main">Microfiber</span> Synthetic fiber

Microfiber is synthetic fiber finer than one denier or decitex/thread, having a diameter of less than ten micrometers.

<span class="mw-page-title-main">Dyeing</span> Process of adding color to textile products like fibers, yarns, and fabrics

Dyeing is the application of dyes or pigments on textile materials such as fibers, yarns, and fabrics with the goal of achieving color with desired color fastness. Dyeing is normally done in a special solution containing dyes and particular chemical material. Dye molecules are fixed to the fiber by absorption, diffusion, or bonding with temperature and time being key controlling factors. The bond between dye molecule and fiber may be strong or weak, depending on the dye used. Dyeing and printing are different applications; in printing, color is applied to a localized area with desired patterns. In dyeing, it is applied to the entire textile.

<span class="mw-page-title-main">Water content</span> Quantity of water contained in a material

Water content or moisture content is the quantity of water contained in a material, such as soil, rock, ceramics, crops, or wood. Water content is used in a wide range of scientific and technical areas, and is expressed as a ratio, which can range from 0 to the value of the materials' porosity at saturation. It can be given on a volumetric or mass (gravimetric) basis.

In fluid statics, capillary pressure is the pressure between two immiscible fluids in a thin tube, resulting from the interactions of forces between the fluids and solid walls of the tube. Capillary pressure can serve as both an opposing or driving force for fluid transport and is a significant property for research and industrial purposes. It is also observed in natural phenomena.

<span class="mw-page-title-main">Sun protective clothing</span> Clothing which blocks light

Sun protective clothing is clothing specifically designed for sun protection and is produced from a fabric rated for its level of ultraviolet (UV) protection. A novel weave structure and denier may produce sun protective properties. In addition, some textiles and fabrics employed in the use of sun protective clothing may be pre-treated with UV-inhibiting ingredients during manufacture to enhance their effectiveness.

<span class="mw-page-title-main">Nanofabrics</span> Textiles engineered with small particles that give ordinary materials advantageous properties

Nanofabrics are textiles engineered with small particles that give ordinary materials advantageous properties such as superhydrophobicity, odor and moisture elimination, increased elasticity and strength, and bacterial resistance. Depending on the desired property, a nanofabric is either constructed from nanoscopic fibers called nanofibers, or is formed by applying a solution containing nanoparticles to a regular fabric. Nanofabrics research is an interdisciplinary effort involving bioengineering, molecular chemistry, physics, electrical engineering, computer science, and systems engineering. Applications of nanofabrics have the potential to revolutionize textile manufacturing and areas of medicine such as drug delivery and tissue engineering.

<span class="mw-page-title-main">Technical textile</span> Textile product valued for its functional characteristics

"Technical textile" refers to a category of textiles specifically engineered and manufactured to serve functional purposes beyond traditional apparel and home furnishing applications. These textiles are designed with specific performance characteristics and properties, making them suitable for various industrial, medical, automotive, aerospace, and other technical applications. Unlike conventional textiles used for clothing or decoration, technical textiles are optimized to offer qualities such as strength, durability, flame resistance, chemical resistance, moisture management, and other specialized functionalities to meet the specific needs of diverse industries and sectors.

Layered clothing is the wearing of multiple garments on top of each other. Flexible clothing can be worn to suit the requirements of each situation by adding or removing layers, or by changing one layer and leaving the others. Two thin layers can be warmer yet lighter than one thick layer, because the air trapped between layers serves as thermal insulation.

Ventile, is a registered trademark used to brand a special high-quality woven cotton fabric first developed by scientists at the Shirley Institute in Manchester, England. Originally created to overcome a shortage of flax used for fire hoses and water buckets, its properties were also useful for pilots' immersion suits, but expensive and leaky if exposed to sweat or oils.

<span class="mw-page-title-main">Finishing (textiles)</span> Manufacturing process

In textile manufacturing, finishing refers to the processes that convert the woven or knitted cloth into a usable material and more specifically to any process performed after dyeing the yarn or fabric to improve the look, performance, or "hand" (feel) of the finish textile or clothing. The precise meaning depends on context.

Dimensional stability pertains to a fabric's ability to maintain its initial size and shape even after undergoing wear and care, which is a desirable property. Dimension stability in fabrics or Shrinkage is the change of dimensions in textile products when they are washed or relaxed. The change is always expressed relative to the dimensions before the exposure of washing or relaxing. Shrinkage is also called residual shrinkage and measured in percentage. The major cause of shrinkages is the release of stresses and strains introduced in manufacturing processes. Textile manufacturing is based on the conversion of fiber into yarn, yarn into fabric, includes spinning, weaving, or knitting, etc. The fabric passes through many inevitable changes and mechanical forces during this journey. When the products are immersed in water, the water acts as a relaxing medium, and all stresses and strains are relaxed and the fabric tries to come back to its original state.

<span class="mw-page-title-main">Comfort</span> Sense of physical or psychological ease

Comfort is a sense of physical or psychological ease, often characterised as a lack of hardship. Persons who are lacking in comfort are uncomfortable, or experiencing discomfort. A degree of psychological comfort can be achieved by recreating experiences that are associated with pleasant memories, such as engaging in familiar activities, maintaining the presence of familiar objects, and consumption of comfort foods. Comfort is a particular concern in health care, as providing comfort to the sick and injured is one goal of healthcare, and can facilitate recovery. Persons who are surrounded with things that provide psychological comfort may be described as being "in their comfort zone". Because of the personal nature of positive associations, psychological comfort is highly subjective.

Colour fastness is a term—used in the dyeing of textile materials—that characterizes a material's colour's resistance to fading or running. Colour fastness is the property of dyes and it is directly proportional to the binding force between photochromic dye and the fibre. The colour fastness may also be affected by processing techniques and choice of chemicals and auxiliaries.

Green textiles are fabrics or fibres produced to replace environmentally harmful textiles and minimise the ecological impact. Green textiles are part of the sustainable fashion and eco-friendly trends, providing alternatives to the otherwise pollution-heavy products of conventional textile industry, which is deemed the most ecologically damaging industry.

<span class="mw-page-title-main">Hand feel</span> Feel of the fabrics to the skin or hand

Hand feel is the property of fabrics related to the touch that expresses sensory comfort. It refers to the way fabrics feel against the skin or in the hand and conveys information about the cloth's softness and smoothness. Hand feel is an estimated and subjective property of different fabrics, but nowadays, hand feel could be measured and assessed statistically.

<span class="mw-page-title-main">Textile performance</span> Fitness for purpose of textiles

Textile performance, also known as fitness for purpose, is a textile's capacity to withstand various conditions, environments, and hazards, qualifying it for particular uses. The performance of textile products influences their appearance, comfort, durability, and protection. Different textile applications require a different set of performance parameters. As a result, the specifications determine the level of performance of a textile product. Textile testing certifies the product's conformity to buying specification. It describes product manufactured for non-aesthetic purposes, where fitness for purpose is the primary criterion. Engineering of high-performance fabrics presents a unique set of challenges.

<span class="mw-page-title-main">Textile testing</span> Process of measuring the properties and performance of textiles

Textile testing is the process of measuring the properties and performance of textile materials—textile testing includes physical and chemical testing of raw materials to finished products.

References

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