Textile Materials: Fabrics (7): Structure of Nonwoven Fabrics
Many people have misunderstandings or understanding of “Textile Materials: Fabrics (7): Structure of Nonwoven Fabrics“. Next, let me take you with me and share it with your friends. Explore knowledge about “Textile Materials Fabrics (7): Structure of Nonwoven Fabrics“…
Non-woven fabrics are composed of fibers as the main body and entangled structures or adhesive fixing components. Therefore, it mainly depends on the arrangement of fibers, the packing density and the interaction between fibers. The main structure is the fiber mesh main structure and the reinforcement structure between fibers.
1. Main structure of nonwoven fabric
The main structure of nonwoven fabrics is the structure of fiber mesh, that is, the structure of fiber arrangement and collection. Depending on the way the fibers are gathered into a network, they are divided into ordered structures and disordered structures.
1. Unidirectional fiber arrangement
By adopting the parallel laying method, the fibers in the fiber web are obviously arranged along the finishing direction (longitudinal). The appearance of the parallel fiber web is flat and uniform, and the oriented arrangement of the fibers makes the fiber web anisotropic.
2. Fiber cross arrangement
The cross-laying method is used to form a web, so that the fibers in the fiber web are arranged and laid at a certain angle, which can reduce the longitudinal orientation of the fiber web. Increased transverse orientation.
3. Fibers are randomly arranged
The random and chaotic web formation of fibers can form a randomly arranged fiber web. Air-laid, felted, polymer extruded web-laid, and wet-laid webs all have the characteristics of randomly arranged fibers.
2. Reinforcement structure of nonwoven fabric
The reinforcement structure of nonwoven fabrics is a auxiliary (secondary) structure, which is produced during fiber fixation and entanglement. It is a local additive structure. The main structure of the fiber mesh is loose and has no strength, while the added structure gives the fiber mesh a stable structure and performance, so it is called a reinforced structure. The auxiliary structure depends on the method of fiber mesh reinforcement, including applying adhesive, thermal bonding, fiber-to-fiber entanglement, and additional spinning yarn entanglement.
1. Fiber entanglement reinforcement structure: self-entanglement due to the felting (felting) property of wool; needle punching and hydroentangling consolidation
2. Additive reinforcement structure: additional spinning yarn reinforcement structure; chemical bonding reinforcement structure; thermal bonding reinforcement structure
3. Structural characteristic indicators of nonwoven fabrics
The structural characteristic indicators of nonwoven fabrics include density γ, square meter weight ω, thickness T, fiber arrangement, reinforcement structural parameters, voids and distribution, etc. Among them,
Square meter weight: Square meter weight is an indicator of fabric weight, and the same applies to non-woven fabrics.
Density: refers to the ratio of the mass and apparent volume of nonwoven fabrics (g/cm3).
Thickness: The thickness of non-woven fabric refers to the distance between the two surfaces of the fabric under specified pressure.
Fabric Materials – Fabrics (7): The Structure of Non-woven Fabrics
AAANHJJGHSFW
Through the above description of “Textile Materials – Fabrics (7): The Structure of Non-woven Fabrics” , what is your understanding and thoughts on “Textile Materials Fabrics (7): Structure of Nonwoven Fabrics“, or if you are interested in purchasing fabrics, you are welcome Leave your comments below on the website!
Disclaimer:
Disclaimer: Some of the texts, pictures, audios, and videos of some articles published on this site are from the Internet and do not represent the views of this site. The copyrights belong to the original authors. If you find that the information reproduced on this website infringes upon your rights and interests, please contact us and we will change or delete it as soon as possible.
AA
