File Photo
The classification standards of non-woven fabric grades are based on the type of non-woven fabric, quality grade, field of application and performance characteristics. For differentiation, non-woven fabrics are divided into Spunless Non-Woven Fabrics, Heat-Bonded Non-Woven Fabrics, Agricultural Non-Woven Fabrics, Spunbond Non-Woven Fabrics, Melt-Blown Non-Woven Fabrics, Needle-Punched Non-Woven Fabrics can go Woven fabrics, hydrophilic non-woven fabrics and medical non-woven fabrics and other various categories!
Non-woven grade classification standards:
Meltblown non-woven fabric is an important material used in masks, filters, 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 the price of the product. The molten layer and filtration efficiency are reciprocal. High-grade non-woven grade will bring good filtration efficiency. Poor-grade nonwovens come with poor filtration efficiency. Currently, meltblown nonwoven fabric filter grades are N, BFE, VFE, KN, and FFP.
Now non-woven bags are made of more confusing materials. Non-woven materials are divided into several grades and grades according to their quality and quality. The non-woven bags in the market are mainly divided into two types of non-woven fabrics: brand new non-woven fabrics. 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 fabric is non-woven fabric mixed with recycled materials or powder and calcium carbonate powder in a certain proportion. 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 recycled non-woven production. Due to the incorporation of cloth recycled materials, the non-woven bag made of this non-woven fabric is dull in color, thin in hand and weak in tension.
The difference between new nonwoven fabric and recycled nonwoven fabric is that a nonwoven fabric of the same gram weight feels thicker and a nonwoven fabric of the same thickness. The new non-woven fabric is lighter in weight and has higher tensile strength.
In the textile industry, the quality performance of non-woven fabrics will be graded according to the specification and use of non-woven products, and the grades will be determined according to the different quality grades of different non-woven fabrics. The higher the non-woven fabric grade, usually does not mean the higher the quality of the fabric, the more expensive it will be!
Source: Online/NAN
Comment Now