The invention relates to an extensible non-woven, in particular, cover sheet material for a multi-layer laminate comprising hydroentangled staple fibers, where the non-woven contains 5 to 25 wt % of binder fibers made of thermoplastic material, in particular 10-15 wt % of binder fibers, and is in addition to hydroentanglement thermally bonded. Furthermore, the invention relates to an elastic multi-layer laminate for use in an elastic component for personal hygiene products composed of elastic base material covered on one or both sides by cover material, where the cover material is formed from extensible non-woven fabric.

Systems and methods of filtering particulate matter from a fluid are provided. In one exemplary embodiment, a system for filtering particulate matter from a liquid comprises a filter having a filter housing, inlet and outlet ports, and compressible filter media with synthetic fibers. Further, the filter media is disposed in the housing between the inlet and outlet ports and is operable to filter particulate matter from the liquid. Also, a pressure difference between the inlet and outlet ports with the filter media disposed in the housing is no more than four pounds per square inch differential. In addition, the system includes a pump that is operationally coupled to the filter and operable to move the liquid through the filter media with a flux rate of at least eighteen gallons per minute per square foot of the filter media while operating at less than one electrical horsepower.

A semipermeable membrane support containing polyolefin-based fibers, which can withstand repeated washing and backwashing, makes it easy for a semipermeable membrane component to permeate thereinto and difficult for the component to strike therethrough, and is excellent in adhesion to the semipermeable membrane and adhesion between a non-coating surface thereof and a resin frame. The semipermeable membrane support which is used by forming the semipermeable membrane thereon is a wet-laid nonwoven fabric containing core-sheath type conjugate fibers composed of polypropylene as a core component and polyethylene as a sheath component and has a burst strength of 300 to 1,000 kPa, or the Bekk smoothness and 75? mirror surface glossiness of the coating surface on which the semipermeable membrane is to be formed of the semipermeable membrane support being more than the Bekk smoothness and 75? mirror surface glossiness of a non-coating surface on the opposite side.

The present invention relates to a molded object and a method for manufacturing the same. The molded object according to the present invention has high density and enhanced properties such as flexural strength or tensile strength, has a small weight change caused by moisture absorption even when used for a long period of time, and has small changes in flexural strength, tensile strength and the like, and therefore, is suited to be used as household materials, industrial materials or the like.

A carded staple fiber nonwoven comprising three or more stratums. The carded staple fiber nonwoven has a basis weight of up to about 175 gsm and includes a blend of absorbing fibers, stiffening fibers and filler fibers. The carded staple fiber nonwoven is heat stiffened and the three or more stratums are integrated without adhesives.

The present invention relates to a melt-blown fiber web having improved elasticity and cohesion, and a manufacturing method therefor. The objective of the present invention is accomplished by a melt-blown fiber web comprising a thermoplastic resin which comprises 10 to 60 wt % of thermoplastic resin microfibers and 40 to 90 wt % of non-circular cross-sectional hollow conjugated staple fibers with respect to the total weight of the fiber web.

A thermally bonded filtration media that can be used in high temperature conditions in the absence of any loss of fiber through thermal effects or mechanical impact on the fiber components is disclosed. The filter media can be manufactured and used in a filter unit or structure, can be placed in a stream of removable fluid, and can remove a particulate load from the mobile stream at an increased temperature range. The combination of bi-component fiber, other filter media fiber, and other filtration additives provides an improved filtration media having unique properties in high temperature, high performance applications.

The invention addresses the problem of providing a filter medium for a liquid filter, which has a low weight per unit and yet has high strength, high collectability, and a long life, and also a liquid filter. As a means for resolution, using a main fiber having a fiber diameter of 4.0 m or less and an aspect ratio of 100 to 2,500 and a binder fiber having a fiber diameter of 3.0 m or less and an aspect ratio of 100 to 2,500, a filter medium for a liquid filter in which the weight proportion of the binder fiber relative to the weight of the filter medium is 10 to 50 wt %, and the weight per unit is within a range of 5 to 80 g/m.sup.2, and also a liquid filter are obtained.

Systems and methods of filtering particulate matter from a fluid are provided. In one exemplary embodiment, a system for filtering particulate matter from a liquid comprises a filter having a filter housing, inlet and outlet ports, and compressible filter media with synthetic fibers. Further, the filter media is disposed in the housing between the inlet and outlet ports and is operable to filter particulate matter from the liquid. Also, a pressure difference between the inlet and outlet ports with the filter media disposed in the housing is no more than four pounds per square inch differential. In addition, the system includes a pump that is operationally coupled to the filter and operable to move the liquid through the filter media with a flux rate of at least eighteen gallons per minute per square foot of the filter media while operating at less than one electrical horsepower.

A heat resistant fiber assembly contains heat resistant fibers having a glass transition temperature of 100 C. or more, the heat resistant fibers being bonded together.