Non-woven fabrics are moisture-proof and breathable and are widely used in different industries. Non-woven fabric is a kind of fabric that can be made without spinning. The material is first laid to form a mesh structure, and then made by mechanical methods. There are many factors that affect the adhesion of non-woven fabrics. Let's learn more about them with the editor below!
1. Get wet
Wetting is a phenomenon in which the adhesive is evenly distributed on the surface of the adherend due to the force between molecules. Generally speaking, the contact angle can be used to indicate the degree of wetting of a solid surface by a liquid, and can be used as the three-phase interface point where droplets, solids and gases come into contact. The smaller the contact angle, the better the wettability of the non-woven fabric will be.
2. Diffusion of adhesive effects
The adhesive for non-woven fabrics needs to have certain diffusion properties. Through diffusion, the adhesive molecules and some fragments can pass through the interface to form a diffusion interface area, which is fully moistened and diffused, which is beneficial to the adhesive molecules and adhesion. Proximity of agent materials. If the distance is less than 0.5 nanometers, molecular attraction or binding force that is conducive to binding can be generated.
3. Mechanical adhesion
Mechanical bonding of non-woven fabrics means that the adhesive penetrates into the pores or surface of the adhesive material, and the adhesive material is bonded through anchor hooks or cured adhesive coating.
The above are the factors that affect the adhesion of non-woven fabrics and can be used as a reference when using them. Nowadays, non-woven fabrics are used more and more widely, breaking through the traditional textile principles, and have the characteristics of short process flow, high output and low cost.
