The main process principle of spunbond non-woven fabric

With the continuous improvement of my country's social and economic water products, the use of spunbonded non-woven fabrics is also increasing. Spunbond non-woven fabric is the first non-woven fabric introduced in China and the most mature technical water products at present, and its market is currently showing a growing trend. Let's take a look at the main process principles of spunbond non-woven fabrics: 1. Rolling mill: Flower stick embossing: straight, cross, and dot patterns. Surface treatment: Nitriding treatment. Heating form: heating by thermal oil. 2. The cooling temperature of the circulating cooling air drafting system is controllable, the air volume is controllable, and the regulating valve controls the uniformity of the network. The drafting fineness can reach: 3dtex3. Spinneret: Hole density: 3910 holes/m Hole diameter: φ0.42mm 4. Metering pump: Drive: frequency conversion control. Working capacity: 150～250cc/r5. Material return screw: Heating mode: five temperature zones, electric heating package heating. Screw form: single screw form. 6 Main screw: Heating mode: five temperature zones, electric heating package heating. Screw type: single screw type, automatic speed adjustment. 7. Addition of color masterbatch: ≤10% 8. Automatic suction device: 220~400 kg/hr 9. High-level silo: 0.6m3 (capacity), made of stainless steel. 10. Suction tube: inner diameter 40mm, inner wall with metal support frame. 11. Low-position silo: 3-4m3 (capacity), made of stainless steel. Detailed explanation of the production process of spunbond non-woven fabric technology: 1. Consolidate the laid fiber web. 2. The circulating cooling air draws the tow and sends it to the netting curtain. 3. The melt is ejected from the spinneret. 4. After the melt is filtered by the filter, it is metered out by the metering pump. 5. The PP raw materials and the masterbatch enter the main screw extruder together, and the electric heating device outside the main screw heats and melts the slices. 6. The automatic suction device sucks PP slices from the low-level bin into the high-level bin. Production process-related parameters (rough statistics): Fabric surface defects: The fabric surface is in good condition, and there is basically no wire hanging or broken wire. Aspect-strength ratio: 1.5:1～1:1CV value: ≤5% Product ration: 10～230 g/m2 Power consumption: 800 kw/t Output: 1500～3000 t/a The above is the summary of related spunbond materials For a summary of the main process principles of woven fabric production, if you don’t understand, you can consult the relevant personnel on the official website of Fujian Nonwovens Co., Ltd.