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Application of Non-wovens: Non-woven fabrics appear in a wide variety of products for apparel, home-furnishings, business, industry and specialized applications such as aerospace. The list of products made from non-woven fabrics is long and growing each year. Some typical end-use items include diapers, handkerchiefs, shirts, dresses, apparel interfacings, bandages, curtains, decontamination clothing, garment bags, industrial […]
NON-WOVEN: Non-wovens are defined as fabric structures produced directly from fibers by bonding or entangling the fibers or filaments by mechanical, thermal or chemical means. Use of adhesive heat, fusion or entanglement of the fiber may be carried out. The input material for non-wovens are 1. Any fibers 2. Some kinds of Bonding Agent. 3. […]
KNITTING: Knitting is the second most important method used in fabric construction. In 1589, Rever and William Lee, English men invented the first knitting machine. Today the modern machine is based onthe same general principles estabilished by William Lee. Knitting is the construction of the fabric by forming the yarn into loops which hang upon […]
Basic Weaving Operation: Basic Loom Operations: Selvedges: Thread Count: Basic Weave Structures: Surface figured weaves: Basic Weaving Operation: The machine used for weaving fabrics is a loom. Before weaving yarns intended forwarp must pass through such operations as spooling, wraping and slashing to preparethem to withstand the strain of weaving process. These processes do not […]
WARP: 1.Most Garments are cut in lengthwise 2.These are parallel to the selvedge 3.Yarns are finer in warp-wise direction as they have higher twist as warps have to go through lots of processing. 4.Filamentous yarns are preferred as warps 5.Yarns are stronger 6.Twist is more and yarns per inch is also more 7.Ply are preffered […]
Yarn forms: (a) A number of fibers twisted together. (b) A number of filaments laid together without twist. (c) A number of filaments laid together with more or less twist. (d) A single mono filament. E.g . Silk TYPES OF YARNS: Yarns can be made either from short staple length fibers or from filament fibers. […]
“Yarn is defined by the American Society for Testing and Materials (ASTM) as “A generic term for a continuous strand of textile fiber, filament, or material suitable for knitting, weaving to form a textile fabric”. YARN MANUFACTURING SYSTEM: The twisting process by which fibers are formed into a yarn is referred to as spinning. Spinning […]
Daily CA One Liners 05 January 2020 Delhi Govt Department Of Art , Culture & Language Has Set-Up A Tamil Academy To Promote The Language & Culture Of The Southern State Of Tamil Nadu Amit Shah Has Released The Inaugural Issue Of The National Police K-9 Journal A Special Police K9 Cell Was Established In […]
POLYESTER: Polyester is sometimes referred to as the “workhorse” fiber of the industry. The filament form of the fiber has been said to be the most versatile fiber and the staple form has been called the “big mixer” because it can be blended with so many other fibers, contributing its good properties to the blend […]
NYLON Nylon was the first synthetic fiber. In 1928 the Dupont company decided to establish a fundamental research program. If anything was discovered it would be good for the company – a means of diversification. It was noticed that when a glass rod was taken out of one of the polyester stills the solution adhering […]
ACETATE AND TRIACETATE: Acetate, which is properly called cellulose acetate (chemically di-acetate or secondary acetate) was first made by Paul Schutzenberger in 1869. The first use of this substancewas as a coating on cotton fabric or as a film similar to cellophane or plastic wrap. As a coating the substance was applied to fabric used […]
Daily CA One Liners 30 December 2020 Scientists Have Discovered A New Species Called ” Portulaca Lalji ” Portulaca Lajii Was Found In The Prakasam Area Of Andhra Pradesh Indian & French Rafale Fighter Jets Will Be Carrying Out Wargames Codenamed ” SKYROS ” In Jodhpur In Jan 2021 CJI Arvind Bobde Unveiled e-Sewa Kendra […]
RAYON: Rayon was the first fiber to be produced commercially. By the passage of time increasing number of new fibers came into existence. A generic name is the name of a family of fibers all having similar chemical composition. All man-made fiber spinning processes are based on three general steps. 1. Preparing a viscous solution […]
Daily CA One Liners 28 December 2020 Virat Kohli Named Captain Of ” ICC Men’s Test Team Of The Decade ” M S Dhoni Named Captain Of ” ICC Men’s ODI & T20I Team Of The Decade ” Rohit Sharma Included In ” ICC Men’s ODI & T20I Team Of The Decade ” R Ashvin […]
Wool: The word wool was wull in old English. Wool is the fiber from the fleece of domesticated sheep. Principal Origin : Natural Generic name : Animal hair Chemical type : Proteinaceous Common name : Wool History: When wild sheep were killed by primitive people for food they used the pelts as body coverings. It […]
Daily CA One Liners 26 December 2020 India’s Largest Hockey Stadium To Be Set Up At Rourkela , Odisha The Stadium Will Be Constructed In The Biju Patnaik University Of Technology Campus , Rourkela It Will Have A Sitting Capacity Of 20,000 People , Spread Over 15 Acres Of Land Ministry Of Finance & Corporate […]
History: The possibility of making cloth from the filament that the silkworm spins into a cocoon was first discovered in China about 2600 B.C. Legends tells us that a cocoon accidently dropped into a cup of tea that a Chinese Princess was having in her garden. The hot liquid softened and loosened the fiber, which […]
ANIMAL FIBERS: High resistance. Good Good Burns readily Natural protein fibers are obtained from animal sources like hair and other secretion, fibers include covering from such animals as sheep, mohair goat, cashmere goat and camel. Secretions are obtained from the larva, or worm stage, of the silkworm, which spins the cocoon from which silk fibers […]
Retting: The bundles of plants are then steeped in water so that the tissue or woody bark surrounding the hairlike flax fiber will decompose, thus loosening the gum that binds the fiber to the stem. The decomposition is called retting. Retting only loosens the woody bark. If flax is not retted enough, the removal of […]
The word flax is derived from Old English “flax”. Linen is the term applied to the yarn spun from flax fibres and to the cloth or fabric woven from this yarn, flax fibers are held together under the stem’s bark principally by a gummy substance (pectin) from the body of flax plant. It is composed […]