Nonwovens under wet forming machine: How to ensure precise cutting to meet specific needs?

As the core equipment of nonwoven production, wet forming machine transforms fiber raw materials into nonwovens with specific structure and performance through a series of complex process steps. This process starts with the dispersion and deposition of fibers. The fiber raw materials are evenly dispersed in a wet state and form a continuous fiber web on a water-permeable curtain belt or a porous roller. Subsequently, the fiber web undergoes initial pressing, drying and other processes to finally form a nonwoven with certain strength and stability.

Even a carefully designed and strictly controlled wet forming process cannot completely avoid irregularities or dimensional deviations on the edges of nonwovens. These tiny defects may be magnified in subsequent processing and use, affecting the overall performance and aesthetics of the product. Therefore, cutting and trimming have become an indispensable part of nonwoven production.

In order to ensure the cutting accuracy of nonwovens, wet forming machines are usually equipped with precision cutting equipment. These devices use advanced cutting technologies, such as laser cutting, mechanical blade cutting or water jet cutting, and can perform precise and efficient cutting according to different non-woven fabric materials and thicknesses, as well as predetermined sizes and shapes.

Laser cutting: Laser cutting has been widely used in the field of non-woven fabric cutting due to its high precision, high speed and low pollution. The laser beam is focused on the surface of the non-woven fabric through a focusing lens, generating high temperatures to melt, vaporize or reach the ignition point of the material instantly, thereby achieving cutting. Laser cutting can easily cope with the cutting needs of complex shapes and fine patterns while ensuring the flatness and smoothness of the edges.

Mechanical blade cutting: Mechanical blade cutting is more suitable for large-scale, continuous cutting operations. The blade cuts the non-woven fabric by high-speed rotation or reciprocating motion. Although this cutting method is fast, it has high requirements on the material and precision of the blade to ensure the flatness and consistency of the cutting edge.

Water jet cutting: Water jet cutting uses high-pressure water flow to cut non-woven fabrics, with the advantages of no pollution, no heat-affected zone, and good cutting edge quality. Especially suitable for non-woven materials that are heat-sensitive or flammable.

As a multifunctional material, non-woven fabrics are widely used in many fields such as medical, health, construction, automobile, packaging, etc. Different fields have different requirements for the size, shape and performance of non-woven fabrics. Therefore, cutting accuracy has become one of the important indicators for measuring the quality of non-woven fabrics.

In the medical field, non-woven fabrics are used to make medical supplies such as surgical gowns, masks, and dressings. These products have extremely high requirements for dimensional accuracy and edge flatness to ensure the sealing and comfort of the products. In the construction industry, non-woven fabrics are used as waterproof materials, thermal insulation materials or foundation reinforcement materials. These applications require non-woven fabrics to have specific sizes and shapes to adapt to different building structures and construction requirements. In the automotive field, non-woven fabrics are used to make sound insulation materials, filter materials or interior materials. These applications have strict regulations on the dimensional accuracy and cutting shape of non-woven fabrics to ensure the performance and safety of the car.

The non-woven fabric cutting process under the wet forming machine must select appropriate cutting equipment and cutting parameters according to the specific application requirements of the product. Through precise cutting and trimming, the dimensional accuracy and edge quality of non-woven fabrics are ensured to meet the quality requirements of non-woven fabrics in different fields.

Although the non-woven fabric cutting process under the wet forming machine has made significant progress, it still faces some challenges. For example, non-woven fabrics of different materials and thicknesses have different requirements for cutting equipment and cutting parameters. How to choose the appropriate cutting method and parameters to achieve the best cutting effect is a complex and important issue. In addition, with the continuous expansion of the application field of non-woven fabrics and the increase in personalized needs, the requirements for cutting accuracy and cutting shape are also getting higher and higher. How to further improve cutting accuracy and cutting efficiency to meet the continuous changes and upgrades of the market is a common challenge faced by wet forming machine manufacturers and cutting equipment suppliers.

In order to meet these challenges, wet forming machine manufacturers and cutting equipment suppliers are constantly exploring and innovating. They improve cutting accuracy and cutting efficiency by developing more advanced cutting technology and equipment; reduce production costs and energy consumption by optimizing cutting processes and parameter settings; and strengthen communication and cooperation with customers to understand market needs and changing trends to provide more customized and personalized cutting solutions.