Classification standard of non-woven fabrics
The classification standard of non-woven grades is based on the types, quality grades, application fields, performance characteristics and other aspects of non-woven fabrics. Non-woven fabrics can be divided into spunlace non-woven fabrics, heat-sealed non-woven fabrics, agricultural non-woven fabrics, spunbond non-woven fabrics, melt-blown non-woven fabrics, needle-punched non-woven fabrics, and hydrophilic non-woven fabrics. Different categories such as woven and medical non-woven fabrics!
Non-woven grade classification standard:
Meltblown non-woven fabric is an important material used in masks, filtration, wiping products, and composite fabrics. It is a non-manufacturing non-woven fabric with polypropylene as the main raw material. Its filtration efficiency is one of the factors affecting product price. Meltblown level and filtration efficiency are mutual. High-grade non-woven grades will bring good filtration efficiency. Poor grade nonwovens bring poor filtration efficiency. At present, the filter grades of meltblown non-woven fabrics are N, BFE, VFE, KN, and FFP.
Nowadays, the materials used for making non-woven bags are extremely confusing. Non-woven materials are divided into several grades and grades according to their quality and quality. The fabrics of non-woven bags on the market are mainly divided into two types: new Non-woven fabrics, recycled non-woven fabrics. The non-woven material of the new material is made of new PP particles. The non-woven bag produced by this non-woven material is bright in color, thick in hand and strong in tension.
Recycled non-woven fabrics are non-woven fabrics mixed with a certain proportion of recycled materials or powders and calcium carbonate powder. Non-woven fabrics, discarded polypropylene plastic bags, non-woven bags, and woven plastic bags can all be used as the primary raw materials of non-woven fabrics, which can be cleaned, melted and granulated for the production of recycled non-woven fabrics. Due to the incorporation of recycled materials, the non-woven bag made of this non-woven fabric is dull in color, thin in hand and poor in tension.
The difference between the new non-woven fabric and the recycled non-woven fabric is that the non-woven fabric of the same gram weight feels thicker and feels like the non-woven fabric of the same thickness. The new non-woven fabric is lighter in weight and has a greater tensile force .
In the textile industry, non-woven fabrics will be graded according to the quality performance, specifications and uses of non-woven products, and different quality grades of various non-woven fabrics will be determined according to the grade. Generally speaking, the higher the quality of the non-woven fabric, the more expensive it will be!
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