Adhesive Nonwovens Summary Research in the Development of Spunlace Industry




Spunlace nonwoven fabric, also known as a non-woven fabric in the textile industry, is not woven and does not follow the conventional process. Instead, it has a cloth-like material made of directional or messy fiber mesh without traditional weaving methods or techniques. It uses the water and friction between fibers or its adhesive force or the external adhesive's tenacious strength, or two forces.

The above details combine threads, i.e., by friction reinforcement, strengthening and hold, or a method of bonding a fiber-reinforced feature obtained.

Nonwovens originated in the late 1940s and early 1950s. Its technology involves many fields such as chemical industrial manufacture, papermaking, plastics, polymer, etc. It has the advantages of a simple product process, high production contact efficiency, comprehensive sources of fiber raw materials, multiple products, unique properties, wide applications, and significant economic interest. Nonwoven products have been applied to many fields, such as the medical field, agricultural protection, cosmetic cleaning, hygiene wipes, household cleaning (e.g., wet wipes), decoration and decoration, automotive interiors, clothing fabrics, geotechnical building materials, national defense aviation, and other fields.
 
The production and processing of nonwoven fabrics mainly include two parts: First part is the network formation and the fixed network process. The second part is the finishing and finishing process of nonwoven fabrics.
 
According to the net forming technology can be divided into three categories:
(1) dry method (2) wet method, and (3) polymer direct method.
The fixed net technology can be divided into a needle punching method, spunlace method, stitching method, thermal bonding method, chemical bonding method, etc.
 
 In recent years, in China, active development use of petrochemical, polymer, polyester, cotton, viscose materials; swift expansion of the chemical fiber industry; and the adhesive sector contributed to the fast growth of non-manufacturing technology. However, the nonwoven manufacturing cloth industry's rapid development also caused some pollution to the environment, mainly driven by many adhesives and polymer materials. 
 
Green and environmentally friendly adhesives and composite materials have become the key to promoting the development of nonwovens. In the nonwoven fabric production process, the adhesive application is the primary finishing process, which affects the nonwoven fabric's physical and chemical properties.
 
How to make a potent combination of web and sticking chemistry?
For excellent nonwovens, we must first understand the adhesion hypothesis of the adhesive. Only by understanding the adhesion hypothesis can a bond with excellent performance be developed, and nonwovens can be promoted.



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