What is the meaning of to intermingle while weaving?5 answersIntermingling in weaving refers to the process of combining different types of yarns, such as thermoplastic resin fibers and reinforcing fibers, to create a hybrid yarn with enhanced strength and unique properties. This technique involves intertwining multifilament yarns at entanglement points and open parts along the yarn's length, altering the tensile strength and knot numbers of the yarn. By utilizing methods like air spraying or fluid streams to intermingle yarn filaments, a fine irregular structure is formed on the fabric's surface, enhancing glossiness, touch, and weaving processability while maintaining easy care properties. Intermingling is becoming a preferred method over traditional techniques like sizing and twisting due to its ability to improve filament yarn resistance to stress and create sophisticated fabric effects.
What is the counterpart of "woven fabric" in the context of cloth modeling?4 answersCloth modeling in the context of woven fabric has been approached using various methods and techniques. Meiklejohn et al. propose a methodology that uses parametric modeling and simulation to design woven fabrics with specific dimensional qualities. Guarnera et al. present a fast image-based technique for reverse engineering woven fabrics at a yarn level, which includes estimating the 3D structure and yarn parameters from spatial and frequency domain cues. Yunying introduces a counter design that prevents the cloth cover from skidding. Cobanoglu et al. disclose a woven textile fabric with electrically conductive layers and piezoelectric properties in the structural and binding yarns. Bukenya et al. analyze the effect of curing parameters on the residual stress distribution in woven polymer matrix composites. Therefore, the counterpart of "woven fabric" in the context of cloth modeling can refer to the design and simulation of woven fabrics, reverse engineering of fabric structures, prevention of skidding in cloth covers, or the use of woven textiles with specific properties.
How to bond synthetic and natural fiber?3 answersSynthetic and natural fibers can be bonded together using various methods. One method involves swelling the individual fibers with an ionic liquid-based solvent system to form a congealed network. Another method involves adding auxiliary materials and an assistant to corn protein as the main raw material, then spinning the resin with spinning equipment to prepare the natural plant synthetic fiber. Additionally, a method for bonding fibers includes providing a first and second fiber layer, along with first and second buffer layers, and directing energy at the first buffer layer to bond the fiber layers. Furthermore, a dyed synthetic fiber can be produced by fixing a natural protein to the surface of a synthetic fiber and dyeing the natural protein with a natural dye. These methods offer different approaches to bond synthetic and natural fibers, providing options for various applications.
What is wire bond process?4 answersWire bond process is a method used in semiconductor packaging to create interconnections between wires and bond pads. It involves the use of a wire bonder to manipulate bond force and ultrasonic control to achieve reliable bond quality. The process begins with a wire bondability assessment, where different bond force, ultrasonic power, and time are manipulated to ensure good bond quality. Numerical simulation techniques are often used to analyze and understand the wire bond mechanism, as it can be challenging to quantify with existing measurement equipment. The wire bonding method also includes selecting and correcting the position of bonding points on a bonding pad in real time using an image recognition system. Additionally, wire bonding involves arranging wires with exposed conductors onto an anvil and a horn for ultrasonic bonding. The wires are then bonded together by ultrasonic bonding between the horn and the anvil.
What is wire bond process?5 answersWire bond process is a method used in semiconductor packaging to create interconnections between wires and bond pads. It involves the use of a wire bonder to manipulate bond force and ultrasonic control to achieve reliable bond quality. The process begins with a wire bondability assessment, where different bond force, ultrasonic power, and time are manipulated to ensure good bond quality. However, the fundamental understanding of the wire bond mechanism is still not well understood, and it is challenging to quantify it with existing measurement equipment and techniques. Numerical simulation techniques are often used to analyze and understand the wire bond process mechanism through reverse engineering approaches. The wire bond process can also involve methods such as image recognition systems for precise positioning of bonding points and air flotation isolation devices to control vibration disturbance during bonding.
What pre treatment processes are done on khaddar fabric?5 answersKhaddar fabric undergoes various pre-treatment processes. These include singeing, desizing, scouring, bleaching, and mercerization. In the pre-treatment process, the fabric is subjected to a step of clear water boiling, a step of biological agent immersion, and a step of pre-treatment of dyeing in an overflow tank. Another pre-treatment process involves singeing, rolling cold-batch working solution, piling, washing in hot water, washing by cold water, and drying. Additionally, a pre-treatment process for dying cotton and cotton elastic fabric involves a scutching step, a cloth boiling step, and a biological enzyme bio-washing step. Furthermore, sustainable reuse and recycle strategies have been investigated to reduce water consumption in textile wet processing, including the reuse of unexhausted chemicals from the scouring and bleaching process. These pre-treatment processes aim to improve the quality of the fabric, enhance dye-uptake, and reduce water and energy consumption.