How many standards are there for non-woven fabrics?
1. According to the gram weight, the square gram weight is usually 10g/m^2~340g/m^2 in China, compared with the commonly used standard is 50g~140g, for example, shopping bags on the market are 60g~120g.
2. Divided by thickness: 0.1mm~1mm of PP non-woven fabric. The relationship with the weight is proportional, that is, the larger the square gram, the thicker, and the other non-woven fabrics can reach 3mm~5mm, such as needles. Barbed non-woven fabric.
3. According to the width: the usual width of non-woven production line is 1.6m, 2.4m, 3.2m. Those that are not in this standard are special standards. For non-woven fabric factories with slitting machines, there is no production technology. Difficulty, only the processing costs and data loss costs are charged.
4. According to the quality: usually there are brand new materials, semi-new materials and normal materials. Of course, brand new materials are the most expensive, semi-new materials are second, and usually materials are again. Generally speaking, the expensive quality will keep up. , The poor can be used, and the good should be easy to use, but the price is low.
5. Divided by color: right and wrong are commonly used, and color cloth is special. Usually, you need to go to the color master batch factory to make a board when it is used, and it will be more or less different from the sample, the so-called color difference, due to transition in the production process Color, there is loss in the early stage, and many non-woven fabric manufacturers are unwilling to stock, so the minimum order quantity of color non-woven fabrics is relatively large, usually more than one ton is required
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