An object of the present invention is to provide a process for producing fiberous board with which fiberous board exhibiting high bending strength and high stiffness at a wide range of heating temperatures and a wide range of compressing and heating times. In the present invention, fiberous board having an initial flexural modulus of at least 300 MPa in three point bending test is obtained by forming a web by correcting sheath-core composite fibers of which a core component is formed from a copolymer of ethylene glycol and terephthalic acid and the sheath component is formed from ethylene glycol, adipic acid, terephthalic acid, isophthalic acid; and/or diethylene glycol. The web is then compressed in a direction of thickness and heated, so that the sheath component softens and melts and the sheath-core composite fibers are melt bonded together and molded into a flat plate shape.

An object of the invention is to provide thermo-fusible conjugated fibers capable of suppressing damage to the fibers upon processing the fibers into a nonwoven fabric web. The thermo-fusible conjugated fibers of the invention contain a first component containing a polyester-based resin and a second component containing a polyolefin-based resin, in which a melting point of the second component is 10° C. or more lower than a melting point of the first component, and a work load at break obtained by a tensile test is 1.6 cN.Math.cm/dtex or more. The damage to the fibers is suppressed by the thermo-fusible conjugated fibers of the invention, and therefore the nonwoven fabric with higher quality can be obtained with higher productivity than ever before.

Extensible nonwoven fabrics having improved elongation, extensibility, abrasion resistance and toughness. In particular, embodiments of the invention are directed to extensible spunbond fabrics comprising a polymeric blend of a metallocene catalyzed polypropylene, polyethylene, and a third polymer component.

A nonwoven paper and method of manufacturing the same, where the nonwoven paper includes a thermally treated, wet-laid fiber mixture that includes a plurality of cellulosic fibers or pulp comprising about 60% to about 90% of the fiber mixture and a plurality of bicomponent binder fibers comprising about 10% to about 40% of the fiber mixture.

A moisture-retentive fabric medium includes a hydrophilic, thermoplastic polyester fiber as a blend of from 10-905% or 20-80% by total weight of textile fibers and 90-10% or 80-20% by total weight of hydrophilic textile fibers and less than 0.5% by weight of total fabric medium as microfibrillated cellulose fiber and less than 0.05% by weight superabsorbent polymers, the polyester having a melting point between 190-500 F when measured in accordance with ASTM D-3418.

A gas filtering medium is composed of hydrophobic polyester fiber as from 20-80% by total weight of textile fibers and 80-20% by total weight of hydrophilic textile fibers and a microfibrillated cellulose fiber in a weight/weight ratio of 1.5-8.5/100 parts by weight of total textile fiber.

A nonwoven fabric having polylactic acid-containing fibers forming a nonwoven web is provided. The web has a side having an alternating pattern of individualized bonded areas which bonded areas define rods arranged in the cross direction of the web. The rods are arranged so that in the machine direction of the web no uninterrupted regions exist along the web while in the cross direction the arrangement of rods defines uninterrupted regions that extend continuously along the web, the alternating pattern of individualized bonded areas defines a non-bonded area. The web has a basis weight from 5-50 g/m.sup.2, the surface of the bonded areas is from 5-20% of the total surface of the side, and the surface of the non-bonded area is from 80-95% of the total surface of the side. Processes for forming the nonwoven fabric and an absorbent article including the nonwoven fabric are also provided.

Shown are thermo-fusible conjugate fibers having a high degree of crystallinity, while a degree of orientation is suppressed, and a bulky and soft nonwoven fabric using the same. The thermo-fusible conjugate fibers have, as a first component, a polyester-based resin, and as a second component, an olefin-based resin having a melting point lower than a melting point of the first component, in which the degree of orientation in the polyester-based resin is 6.0 or less, and the degree of crystallinity therein is 20% or more. The conjugate fibers are preferably sheath-core conjugate fibers in which the first component is a core component and the second component is a sheath component.

[Problem] To provide a nonwoven fabric (pasting mat) that does not undergo bonding between the nonwoven fabrics (pasting mats) even under severe conditions (a pressure in winding and a high temperature and a high humidity in transportation, storage, and production).

[Means for Resolution] A pasting mat for lead acid batteries, containing a microglass fiber and a heat-fusible binder fiber, the pasting mat having a thickness under a pressure of 20 kPa of 0.1 mm or more and 0.5 mm or less, and having a bonding strength between the pasting mats after being left for 48 hours under a pressure of 5 to 10 kPa in an environment of a temperature of 70 to 90° C. and a humidity of 75% of less than 0.05 N.

A method for producing a nonwoven element particularly for hygiene products, has at least the following steps: forming a fibrous web sheet with a width direction extending transverse to the production direction and a thickness direction perpendicular thereto by supplying staple fibers from at least a first group which are formed from a thermoplastic material, consolidating the fibrous web sheet to form a nonwoven web by heating exclusively a first side of the fibrous web sheet through contact with a heated surface such that the staple fibers of the first group are partially melted, and cooling the nonwoven web.