Mainstream Technology of Nonwovens

Unlike the situation in the past, the operation of mainstream technology for nonwovens has attracted a great deal of attention from the industry. The implementation of many technologies and the improvement of equipment, etc. have been transformed in strict accordance with the relevant norms and standards. This article briefly analyses the characteristics and classification of mainstream technologies for nonwovens worldwide.

Characteristics of mainstream nonwovens technology

In the process of research and development and innovation of many materials, China has made efforts to strengthen the effective adjustment and optimisation of technology. The purpose is to promote the use of materials to better improve the experience, for many products and daily life needs to meet, have a good effect, can create economic and social benefits on the whole. Combined with past work experience and current work standards, the characteristics of the mainstream technology of nonwoven fabrics are mainly reflected in two aspects: first, there is no warp and weft. In the process of using it, whether it is cutting or sewing, it shows high convenience, and the overall texture is very good, which is favoured by handmade enthusiasts; secondly, it is a special fabric itself, which can be made without spinning and weaving. In the process of reinforcement, the production is done through mechanical, thermal bonding and chemical methods together, so it has an outstanding degree of firmness and will not be easily broken.

Classification of mainstream nonwoven technologies

At present, the research and development of the mainstream technology of nonwoven fabrics is constantly reflecting the concept of diversification, which is classified into the following six categories.

(1) Spunlace nonwoven fabrics. This type of process operation, mainly high-pressure fine water jet to one or more layers of the fibers network. The advantage of this operation is that it can promote the fibers to remain in a state of entanglement with each other, which ultimately promotes the fiber network itself to have a good reinforcing effect, and better improves the strength of the reinforcement.

(2) Thermally bonded nonwoven fabrics. The implementation of this technology, mainly in the fiber network to add fiber state or powder hot melt bonded reinforcement materials, by adding a variety of fiber network materials, followed by hot melt cooling technology, and finally effective reinforcement products, and thus widely acclaimed.

(3) Needle-punched nonwoven fabric. This technology makes use of the piercing effect of felting needles to effectively reinforce the relatively fluffy fiber network, which has the characteristics of mechanization and is not high in cost.

(4) The mainstream technology of meltblown nonwoven fabrics can not only improve the efficiency of BFE and PFE filtration, but also to meet the requirements of the breathing resistance, the two are both contradictory and antagonistic unity.

(5) Pulp airflow into a network of nonwoven fabrics, in the application of this technology, it is also known as dust-free paper. It is in the process of operation, the main application of airflow network technology, prompting the wood pulp fiber board open loosening into a single-fiber state, and then using airflow technology and methods, prompting the effective cohesion of fibers in the net curtains, the fiber network operation after the reinforcement of the system.

(6) Hydrophilic nonwoven fabric. In terms of the operation of this technology, the most important feature is that it can produce good results for the production of medical and hygienic materials. At the same time, it excels in feel and basically does not scratch the skin. For example, it is involved in the production of sanitary napkins and sanitary pads.

In the process of innovation of nonwovens mainstream technology, China is continuously adjusting according to the original model. The operation level of many technologies is at the international leading level, and it is believed that the mainstream technology of nonwovens will have better development in the future.