FIBROUS LAMINATE CONTAINING ULTRAFINE FIBERS AND FILTER COMPRISING SAME

摘要

To provide a fibrous laminate having excellent secondary processability in processing into a filter or the like by laminating a fibrous layer composed of ultrafine fibers with another fibrous layer and strongly adhering and uniting each interlayer while reduction of characteristics of the ultrafine fibers is suppressed at a minimum to compensate insufficiency of mechanical strength and rigidity of a layer of ultrafine fibers.;The fibrous laminate includes fibrous layer I composed of ultrafine fibers having a mean fiber diameter of 10 to 1,000 nm and fibrous layer II composed of thermo-fusible conjugate fibers having a mean fiber diameter of 5 to 100 μm, in which contact points between the ultrafine fibers and the thermo-fusible conjugate fibers are bonded by melting of the thermo-fusible conjugate fibers composing the fibrous layer II, and the fibrous layer I and the fibrous layer II are laminated and united by the formed bonding points.

主权项

1. A fibrous laminate, comprising a fibrous layer I composed of ultrafine fibers having a mean fiber diameter of 10 to 1,000 nanometers, and a fibrous layer II composed of thermo-fusible conjugate fibers having a mean fiber diameter of 5 to 100 micrometers, wherein contact points between the ultrafine fibers and the thermo-fusible conjugate fibers are bonded by melting of the thermo-fusible conjugate fibers composing the fibrous layer II, and the fibrous layer I and the fibrous layer II are laminated and united by the formed bonding points.