Spunbonded non-woven fabric is one of the main materials of non-woven fabric is polyester and polypropylene, which has high strength and high temperature resistance. After the polymer is extruded and stretched to form a continuous filament, the filament is laid into a net. The fiber net then becomes a non-woven fabric through self-bonding, thermal bonding, chemical bonding or mechanical reinforcement methods.
The main products of spunbonded non-woven fabrics are polypropylene, polyester (long fiber, staple fiber) non-woven fabrics, our most common and most commonly used applications are non-woven bags, non-woven packaging and so on; It is easy to identify the spunbonded non-woven fabric, generally good bidirectional fastness, the rolling point of the general spunbonded non-woven fabric is diamond.
Characteristics of spunbonded non-woven fabric
Good high temperature resistance, good low temperature resistance (polypropylene can be used in the environment of 150℃ for a long time, polyester can be used in the environment of 260°C for a long time), aging resistance, UV resistance, high elongation, good stability and air permeability, corrosion resistance, sound insulation, moth-proof, non-toxic.
Process flow
Polypropylene: polymer (polypropylene + feedback) - large screw high temperature melt extrusion - filter - metering pump (quantitative transmission) - spinning (spinning inlet up and down stretch suction) - cooling - air traction - net curtain into a net - up and down press roller (pre-reinforced) - rolling mill hot rolling (reinforced) - winding - inverted cloth cutting - weighing packaging - finished products storage
Polyester: Processed polyester slices -- high temperature melting extrusion of large screw culm -- Filter -- metering pump (quantitative transmission) -- Spinning (drawing up and down at the spinning entrance) -- cooling -- air traction -- net curtain into a net -- upper and lower press roller (pre-reinforcement) -- hot rolling mill (reinforcement) -- winding -- inverted cloth sashing -- weighing and packaging -- finished product storage.
Use of spunbonded non-woven fabric
The application level of spunbonded non-woven cloth can also be made of flower packaging cloth, bag cloth and so on, other is also widely used in agricultural harvest cloth; Medical, industrial disposable products, furniture linings, hotel hygiene products, etc.
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