Closely woven fabrics

As with tissue, woven glass cloth is used for decorative or acoustic purposes. Additionally, close-woven fabrics give improved fire-safety properties and are resistant to mechanical abuse. Glass cloth or scrim of an extremely open weave is used on insulants as a key for mastic or hard-setting finishes. 

Filter elements may be divided into two classes surface and depth. Surface filters are made of closely woven fabric or treated paper with a uniform pore size. Fluid flows through the pores of the filter material and contaminants are stropped on the filter s surface. This type of filter element is designed to prevent the passage of a high percentage of solids of a specific size. 

For protection from cuts and bruises, a special closely woven fabric (duck) as well as any lightweight protecting cloth is helpful. Disposable suits of plastic are particularly important for protection from dusty materials. For specific chemicals, the manufacturer s guide should be consulted for effective protection. 

The mechanism of water vapour transmission through uncoated textiles involves simple diffusion of water vapour through the inter- and intra-yam spaces and diffusion through individual fibres the former is the most efficient for diffusion. In closely woven fabrics, both intra- and inter-yam spaces should be as small as possible to give maximum protection against wind and rain, whilst the fabric outer surface should be non-absorptive and hydrophobic to minimise wetting ont by rain, sleet, or snow. Inevitably, therefore, the design of the outerwear fabric must be a compromise between waterproofness, wind resistance, and water vapour transmission properties. ... 

Ticking ti-kig [ tick] (1649) n. A durable, closely woven fabric used for covering box springs, mattresses, and pillows. Ticking may be woven in a plain, satin, or twill weave, usually with strong warp yarns and soft filling yarns. 

Velour v3- lur [F velours velvet, velour, fr. MF velours, velour, fr. OF velous, fr. L villo-sus shaggy, fr. villus shaggy hair] (ca. 1706) n. (1) Generally, a soft, closely woven fabric with a short, thick pile, weighting about 10-20 ounces per yard and made in a plain or satin weave. Velour is usually made of cotton or wool, or with a cotton warp in wool, silk, or mohair velour. It is also made in blends of spun manufactured fiber and wool. Velours are used for coats, draperies, upholstery, powder puffs, and other pile items. (2) A felt with velvet-like texture used for men s and women s hats. Complete textile glossary. Celanese Corporation, Three Park Avenue, New York. 

Duck, a closely woven fabric, is good for light-duty protective clothing. It can protect against cuts and bruises on jobs where employees handle heavy, sharp, or rough material. 

The stitches or eyelets should not be so close together that there is risk that the pieces might tear. For similar reasons, tension and strain on the join should be avoided. The fixing (clips, eyelets, thread, etc.) should be compatible with the articles to be joined, not harder or more abrasive. Film, non-woven, and woven fabrics all may be finished in this way. With film and non-wovens the stitches should be loose and separated fairly widely thread should be of about the same diameter as the thickness of film or fabric. When selecting thread or other fixings for woven fabrics the gauges should be compatible with the warp and weft (not too thick, and not too fine). 

Theoretical values of the effective thermal conductivity of polyester fabrics (6J (estimated by an expression developed for fibers placed in parallel with each other surrounded by a known amount of air and vice versa) agreed well with line heat source measurements of the thermal conductivity of fabrics varying in thickness, construction, and fiber content (7.). These results also indicate that the thermal conductivity of fabrics in directions parallel to the surface is greater than that perpendicular to the surface, especially for filament yarn the thermal conductivity of woven fabrics in directions parallel to the warp yarns, which were arranged more closely, was greater than in directions parallel to the filling yarns (7.) ... 

Canvas A closely woven cloth of flax, hemp, or cotton, which is sometimes used in industrial laminated plastics. It usually represents fabric weighing more than 4 oz/yd (0.14 kg/m ). 

Textile fibers that absorb moisture also change their axial and transverse dimensions. This phenomenon has important practical consequences for example, the swelling of fibers could effectively close the pores in a tightly woven fabric and alter its mechanical characteristics. 

Different types of breathable components can be classified into following groups, based on the basic component used in the multilayer constfuction. A suitable substrate is essential to support a membrane and/or coating whereas in some cases, such as closely woven construction, a single fabric can be used in isolation. Examples of these include ... 

---