Preparation method of composite non-woven fabrics fibrous membranes
A fiber membrane, non-woven technology, applied in non-woven fabrics, textiles and papermaking, etc., can solve the problems of uneven micropores, large pore size deviation, poor filtration effect, etc., to improve pore uniformity, improve density, The effect of reducing the aperture
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[0012] Example 1
[0013] A preparation method of a composite non-woven fabric, which includes the steps of mixing, opening, pre-carding, cross-laying, combing, hot rolling, winding and cloth formation, which adopts the use of fiber denier of 1.5D and 3D The short fiber is the raw material, and the ratio of the short fiber with 1.5D fiber denier and the short fiber with 3D fiber denier is: 1.5D accounts for 70-50%, and 3D accounts for 30-50%.
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[0014] Example 2
[0015] A method for preparing a composite non-woven fabric, which includes the steps of mixing, opening, pre-carding, cross-laying, combing, hot rolling, winding and cloth formation, and adopts the steps of circular and trilobal fiber section Short fibers are used as raw materials, and the ratio of short fibers with circular cross-sections to short fibers with trilobal cross-sections is 70-30% for circular cross-sections and 30-70% for trilobal cross-sections.
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[0016] Example 3
[0017] A method for preparing a composite non-woven fabric, which includes the steps of mixing, opening, pre-carding, cross-laying, combing, hot rolling, winding and cloth formation, and adopts short fiber sections with circular and cross-shaped fibers. The fiber is the raw material, and the ratio of short fibers with a circular cross-section and short fibers with a cross-shaped cross-section is as follows: the circular cross-section accounts for 70-30%, and the trilobal shape accounts for 30-70%.
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