Question 15 (Textile Engineering & Fibre Science)
In air-jet loom
|(A)||All the relay nozzles start jetting at the same time|
|(B)||Each relay nozzle has separate jetting time|
|(C)||Relay nozzles of a group start jetting at the same time|
|(D)||Main and relay nozzles have same jetting time|
Frequently Asked Questions | FAQs
What is the principle of air jet loom?
The air jet loom is a type of textile weaving loom that uses high-velocity air jets to propel the weft yarn through the shed to create woven fabric. The principle of air jet loom is based on the use of compressed air to propel the weft yarn through the warp shed, thereby forming the interlacement of warp and weft threads to create the woven fabric.
The main principle of operation of an air jet loom can be summarized in the following steps:
Shedding: The shed is created by raising or lowering the warp threads using shedding devices, such as a dobby or a Jacquard mechanism, which determines the pattern of the fabric to be woven.
Picking: The weft yarn is inserted into the shed by a high-velocity air jet, which carries the weft yarn across the width of the loom. The air jet is created by compressed air, which is directed through a narrow nozzle or jet located in the weft insertion system of the loom.
Beat-up: After the weft yarn is inserted, the reed, which is a comb-like structure, is used to push the newly inserted weft yarn against the previously inserted weft yarn to form a tightly packed fabric structure.
Take-up: The woven fabric is wound onto the cloth roll or take-up roll, which is driven by the loom’s take-up mechanism, and the woven fabric is advanced in the loom for the next cycle of weaving.
Shedding Reset: The shedding devices are reset to create the next shed for the next pick of weft yarn, and the process repeats to create the desired fabric pattern.
The key principle of the air jet loom is the use of high-velocity air jets to propel the weft yarn through the warp shed, which allows for high-speed weaving and efficient production of woven fabrics. Air jet looms are known for their high productivity, versatility, and ability to weave a wide range of fabric types, making them popular in the textile industry for producing a variety of fabrics, including cotton, polyester, and blended fabrics.
What is air jet loom used for?
Air jet looms are widely used in the textile industry for weaving a variety of fabrics. They are particularly known for their high productivity, efficiency, and versatility, making them suitable for a wide range of fabric types and applications. Some common uses of air jet looms include:
Apparel Fabrics: Air jet looms are used to weave a wide range of apparel fabrics, such as cotton, polyester, rayon, silk, and their blends. These fabrics are used for making garments, including shirts, trousers, dresses, skirts, and other clothing items.
Home Textiles: Air jet looms are used to weave home textile fabrics, such as bed sheets, pillowcases, towels, bathrobes, curtains, upholstery fabrics, and other household textiles.
Technical Textiles: Air jet looms are used to weave technical textiles, which are specialized fabrics used for various industrial, automotive, aerospace, medical, and other technical applications. Examples of technical textiles include filter fabrics, geotextiles, medical textiles, automotive textiles, and protective textiles.
Industrial Fabrics: Air jet looms are used to weave industrial fabrics used in various applications, such as conveyor belts, canvas for tents and tarpaulins, packaging materials, and other industrial applications.
Fashion Fabrics: Air jet looms are used to weave fashion fabrics with intricate patterns, designs, and textures, such as jacquard fabrics, dobby fabrics, and other specialty fabrics used in fashion and apparel industry for creating unique and stylish garments.
Upholstery Fabrics: Air jet looms are used to weave fabrics for upholstery applications, such as furniture upholstery, automotive interiors, and other upholstery products.
Carpet and Rug Fabrics: Air jet looms are used to weave fabrics for carpets and rugs, which are used in residential, commercial, and industrial settings for floor coverings and decorative purposes.
Air jet looms are widely used in textile mills and factories for mass production of woven fabrics due to their high speed, efficiency, and flexibility in producing a wide variety of fabric types and designs. They are favored for their ability to weave complex patterns, intricate designs, and specialty fabrics, making them suitable for a wide range of textile applications.