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A working knowledge of fibers and yarns enables our customers to understand the unique qualities of BYORK FABRICS premier circular knit fabrics. In addition to knitting with a wide variety of branded fibers BYORK FABRICS has registered and is the owner of several proprietary brands.
Acetate/triacetate – man-made from modified and chemically changed cellulose, fabrics from these fibers are silky and luxurious, quick-drying, and can be crisp or soft in hand depending on the end use.
Animal or protein fibers – wool and silk. These natural fibers have excellent resiliency and thermal properties, drape well and are comfortable to wear.
Cellulosic – a fiber made from plants. Cotton, linen, ramie, and hemp are natural cellulosic fibers. Rayon and lyocell are regenerated cellulosics; acetate and triacetate are modified cellulosic fibers.
Cotton Count or English Count – the yarn numbering system based on length and weight originally used for cotton yarns and now employed for most staple yarns spun on the cotton system. Under this system, the higher the number, the finer the yarn.
Cut – The number of needle slots per inch in the cylinder of a circular knit machine determines the cut of the machine. ABF produces fabrics primarily knit on machines from 12-cut to 28-cut. See Gauge.
Denier – The numbering system used in the U.S. for filament yarns. The lower numbers represent the finer sizes and the higher numbers the coarser sizes. Filament yarns are usually represented by both denier (size) and filament count, for example, 1/70/68 would mean a single 70 denier yarn containing 68 filaments.
Filament – Synthetic fibers are extruded trough spinnerets into filaments; silk is the only natural yarn which is a single filament. Filament yarns may be composed of single or multiple filaments, which may be variously textured, twisted, crimped, or left flat. Yarns with low numbers of filaments per denier tend to be harsh and wirey; yarns with a high number of filaments per denier are usually more expensive and more desirable.
Gauge – The number of needles per given distance in a knitting machine, relating to the number of wales per inch in a knit fabric.
BDone ® BYORK FABRICS registered brand for a collection of circular knits made from full dull, textured Meryl® microfiber nylon and processed with BYORK FABRICS exclusive dyeing and finishing techniques for a smooth, supple hand.
BFone ® BYORK FABRICS registered brand for a collection of circular knits made from TENCEL A-100®. These new TENCEL knits have the aesthetics of the finest spun yarns with the performance of a synthetic.
LYCRA® SPANDEX – DuPont’s registered brand of elastomeric synthetic fiber.
LYCRA® 164 B – Du-Pont’s new matte luster LYCRA® spandex which minimizes grin through and glitter and promotes a uniform appearance in circular knits. LYCRA® 164B has superior chlorine resistance and retains its whiteness, making it ideal for BYORK FABRICS’s swimwear and high-performance knits.
Lyocell – A man-made or regenerated cellulosic fiber with a manufacturing process that is separate and unique from that of its cousin, rayon. Lyocell’s manufacturing process is environmentally-friendly. The fiber is strong and silky, quick-drying, and has an excellent affinity for dye. Fabrics made of lyocell traditionally have a warm, peach-skin handle due to the fiber’s tendency to fibrillate when dyed and finished.
Meryl® -Nylstar, registered brand of microfiber nylon.
Microdenier/microfiber – A yarn in which the number of filaments equals or exceeds the denier of the yarn, resulting in a denier per filament (dpf) count of 1.0 or less. (For example, a 1/150/200 yarn.) Microfibers offer superior aesthetics and performance and result in synthtic fabrics which are drapey and comfortable. Yarns that are near microdenier, such as 1/70/68, are considered for all intents and purposes to perform as microfibers.
Modal® – Lenzing’s registered brand for high wet-modulus rayon.
BYLoom ® – BYORK FABRICS’S registered process for making our synthetic fabrics more comfortable to wear by changing the ability of nylon and polyester fibers to manage moisture. Synthetics treated with BYNYF ® become hydrophilic, wicking and dispersing moisture to the outside of the fabric where it quickly evaporates. The BYNYF ® process is permanent and does not affect the aesthetics or performance of the fabric.
Rayon – A manufactured fiber composed of regenerated cellulose such as wood pulp (viscose rayon) or cotton linter (cupro rayon). Rayon yarn can be either spun or filament. Fabrics made of rayon tend to be soft with good drape, are highly absorbant , with low strength and abrasion resistance. High-wet modulus or polynosic rayon is a staple fiber (spun yarn) with a longer molecular chain for improved wet strength and abrasion resistance.
Spandex – A manufactured stretch fiber composed of at least 85% polyurethane. Spandex is lighter in weight, more durable, and more supple than conventional elastic or rubber threads. The use of spandex has revolutionized knitted fabrics, providing comfort, stretch, recovery, wrinkle-resistance, and ease of care to a variety of products, from bathing suits, hosiery and intimate apparel to T-shirts and knit dressing in general.
Staple/spun – Staple fibers are natural fibers such as cotton or wool, or filament fibers which are chopped or cut into smaller lengths. The staple fiber is then spun into yarns on the cotton, woolen, or worsted systems.
Supplex® – DuPont’s registered brand for air-jet textured nylon, which gives the product a cottony hand.
Synthetic – Manufactured or man-made fibers synthesized from chemical compounds or minerals (fiberglass). These include acrylic, nylon, polyester, polyurethane, polypropylene, etc. synthetic fibers are strong and hydrophobic (low affinity for moisture) and are generally considered to be uncomfortable in hot weather. Synthetic fibers are extruded in filament form; the yarns may be filament or chopped into staple to be spun.
Tactel® – DuPont’s registered brand of premium microfiber and near-microfiber nylons, usually false-twist textured. Tactel Diablo® are bright flat yarns with unique cross-sections for high luster effects.
TENCEL® – Acordis Fibers’ registered brand of lyocell.
TENCEL A – 100® – Accordis Fibers’ second generation of lyocell, which is chemically treated in the fiber form to prevent fibrillation. BYORK FABRICS’s BYN® of piece-dyed TENCEL knits uses TENCEL A-100 exclusively.