Question 15 (Textile Engineering & Fibre Science)
In the context of thermal bonding of nonwoven web, the statement which is not true is
|(A)||A thermoplastic component has to be present in the web|
|(B)||Heat is applied until the thermoplastic component melts|
|(C)||The polymer flows by surface tension and capillary action to fibre cross over points|
|(D)||Chemical reaction takes place|
Answer / Solution
Frequently Asked Questions | FAQs
What is thermal bonding of fabrics?
Thermal bonding is a process of joining non-woven fabrics together using heat and pressure. It is a common method used in the manufacturing of non-woven fabrics to create a strong and durable material.
During the thermal bonding process, the fibers in the non-woven fabric are first spread out evenly. Then, heat and pressure are applied to the fabric, causing the fibers to melt and fuse together at the points of contact. This process creates a bond that holds the fibers together, resulting in a non-woven fabric that is strong and tear-resistant.
The thermal bonding process can be done in various ways, such as through hot calendering, hot air bonding, and infrared bonding. Each method uses heat and pressure to melt and fuse the fibers together in a different way.
Thermal bonding is a popular method for creating non-woven fabrics because it is efficient, cost-effective, and produces high-quality materials. Non-woven fabrics created using thermal bonding are used in a wide range of applications, including filtration, medical products, packaging, and more.
What is web bonding in nonwoven fabric?
Web bonding is a process used in the manufacturing of non-woven fabrics to create a strong and durable material. It is a method of joining the fibers in the fabric together without the use of any adhesives or chemicals.
During web bonding, the fibers in the non-woven fabric are first laid out in a web-like structure. Then, a combination of heat, pressure, and/or mechanical action is applied to the web to bond the fibers together. This process causes the fibers to entangle and interlock with each other, creating a strong and cohesive fabric.
There are several types of web bonding methods used in non-woven fabric manufacturing, including needle punching, hydroentangling, and spunbonding. Each method uses a different combination of heat, pressure, and/or mechanical action to bond the fibers together.
Web bonding is a popular method for creating non-woven fabrics because it is cost-effective, energy-efficient, and produces high-quality materials. Non-woven fabrics created using web bonding are used in a wide range of applications, including filtration, medical products, geotextiles, and more.