Hydroentanglement to reinforce webs: an environmentally friendly and efficient textile technology innovation

In the vast field of nonwoven production, reinforcing webs is a key step to ensure product quality and performance. Traditionally, the needle punching process has been widely used due to its efficiency and practicality, but with the increasing awareness of environmental protection and the continuous advancement of technology, a more environmentally friendly and efficient reinforcement method, hydroentanglement, has gradually emerged.

The reinforcement principle of hydroentanglement is similar to that of needle punching, but it has made revolutionary innovations in the implementation method. Unlike the needle punching process, which uses metal needles to directly penetrate the web, the hydroentanglement method uses multiple fine water jets generated by high pressure. These water jets, which are vividly called "high-pressure water needles", have become a new tool for reinforcing webs with their powerful impact.

When high-pressure water needles are sprayed onto the web at extremely high speeds, they penetrate the fiber layer of the web and rebound when they encounter the net curtain below. This rebound process not only enhances the penetration of the water flow, but also gives the water needle the opportunity to penetrate the web multiple times. Inside the web, the fibers will undergo a series of physical changes such as displacement, interlacing, entanglement and cohesion under the action of these water needles that penetrate at high speed from different directions. These changes form a close connection between the originally loose fibers, thereby significantly strengthening the overall structure of the web.

Compared with the needle punching process, the biggest advantage of the spunlace method is that it does not require the use of chemical adhesives. In traditional textile processes, a large amount of chemical adhesives are often added to enhance the strength and stability of the web. However, these adhesives not only increase production costs, but may also cause environmental pollution. The spunlace method completely avoids this problem. It relies on pure hydraulic action, which is both environmentally friendly and efficient.

In addition, the non-woven fabrics reinforced by the spunlace method also perform well in terms of strength and stability. Due to the close entanglement and cohesion between the fibers, the non-woven fabrics can better resist stretching and tearing when subjected to external forces. This high strength and stability make spunlace non-woven fabrics show a wide range of application potential in many fields.

It is worth mentioning that the spunlace method also has high flexibility in the production process. By adjusting the parameters of the high-pressure water needle, such as the jet speed, jet angle and jet time, the structure and performance of the non-woven fabric can be precisely controlled. This flexibility enables the spunlace method to meet the special needs of non-woven fabrics in different fields and different application scenarios.

As an environmentally friendly and efficient textile technology innovation, the spunlace reinforced fiber web plays an increasingly important role in the production of non-woven fabrics. With its unique reinforcement principle, environmentally friendly production method and excellent product performance, it has injected new vitality into the development of the non-woven fabric industry. With the continuous advancement of technology and the continuous expansion of the market, we have reason to believe that the spunlace method will play a more important role in the future production of non-woven fabrics.