GATE (TF) Textile 2018 Question Paper Solution | GATE/2018/TF/33

Plain weave is the most basic and simple type of weaving pattern, where the weft yarn passes over and under alternate warp yarns in a repeated pattern. This results in a flat, closely woven fabric with a checkerboard-like appearance.
Plain weave fabrics are very versatile and can be made from a variety of fibers, including cotton, wool, silk, and synthetic materials. They can also be produced in various weights and densities, ranging from sheer, lightweight fabrics to heavy, sturdy ones.
Plain weave fabrics have a wide range of uses, including clothing such as dress shirts, blouses, and skirts, as well as home textiles such as bed linens, curtains, and upholstery fabrics. They are also commonly used in industrial applications for products such as canvas, tents, and filters.

Twill weave is a type of weaving structure that creates a diagonal pattern on the fabric surface. It is created by interlacing the warp and weft threads in a way that each weft thread goes over one or more warp threads and then under one or more warp threads in a regular pattern, which creates a diagonal line or “twill line” on the fabric.
The twill weave can be identified by its distinctive diagonal pattern, which may be very subtle or very pronounced depending on the number of threads interlaced in each repeat of the weave. The direction of the twill line can also vary depending on the direction of the weave, and can be oriented from the bottom left to the top right (called “right-hand twill”), or from bottom right to top left (called “left-hand twill”).
Twill weave fabrics are known for their durability and strength, as well as their ability to drape and hold shape well. Common examples of twill weave fabrics include denim, gabardine, and tweed. The twill weave is also used in industrial applications, such as for heavy-duty workwear and military uniforms.

Satin weave is a type of weaving pattern that creates a smooth and lustrous surface on the fabric. Unlike plain weave or twill weave, where each warp and weft thread interlaces in an alternating pattern, in a satin weave, the weft thread passes over several warp threads before going under one, creating long, floating sections of the weft thread on the surface of the fabric. This results in a high number of “floats” or unbound threads on the surface of the fabric, which can be seen as a shiny finish.
Satin weave fabrics have a distinctive soft and silky texture and a smooth and shiny surface that reflects light beautifully. They are typically made from silk, but can also be made from other fibers such as cotton, polyester, or rayon.
Satin weave fabrics are commonly used for high-end apparel, such as formal dresses, lingerie, and luxury bedding. They are also used in home decor applications, such as curtains and upholstery. Because of their delicate and smooth nature, satin weave fabrics require special care and handling to maintain their luster and beauty.

Mock Leno weave is a type of weave pattern that resembles the Leno weave, but is actually different. In the Leno weave, two or more warp yarns are twisted around each other, while the weft yarn is passed between them, creating a stable and open mesh.
In the Mock Leno weave, the weft yarn is used to create the twisted effect, and no additional warp yarns are twisted. Instead, the weft yarns are crossed over each other in a regular pattern, creating an illusion of twisted warp yarns. This weave structure creates a textured fabric with a unique look that can be used for a variety of applications, such as home decor, clothing, and accessories.
Mock Leno weave is often used to imitate the look of traditional Leno weaves, but with simpler weaving techniques. Additionally, the mock Leno weave can be created using a variety of materials, such as cotton, linen, silk, and wool, which allows for a wide range of textures and finishes.