A nonwoven filtration medium that includes a fibrous base media including synthetic and/or natural fibers and micro fibrillated cellulose fibers.

The present invention is a novel improved process and apparatus for making polymeric fibers and combining these with cellulosic fibers so as to form a fibrous-containing nonwoven, and in particular fibrous material containing spunmelt nonwoven.

A multilayer nanofiber sheet (10) includes: a nanofiber layer (11) including nanofibers which comprise a water-soluble polymer compound; a substrate layer (12) arranged on one surface side of the nanofiber layer (11); and a water-insoluble porous layer (13) arranged on the other surface side of the nanofiber layer (11). The three layers are layered, and the multilayer nanofiber sheet is used in a state in which a surface thereof on the porous layer side is arranged so as to face a surface of an object. Preferably, the three layers are layered in a fixed state. Preferably, the porous layer (13) has a thickness of from 3 to 1000 m.

Provided is a sheet of nonwoven fabric having excellent cleaning performance. The sheet of nonwoven fabric includes a web layer formed by an air-laid method. The sheet of nonwoven fabric includes powder producing alkalinity when in contact with moisture, and has a water-absorbing material as a main component.

A method to prepare nonwoven webs suitable for use as an industrial wipe which have good MD and CD strength is provided. The method includes hydroentangling an airlaid web of natural cellulose fibers having a fiber length of no more than 3.5 mm, bonding fibers having a fiber length of from 6.0 to 12.0 mm and optionally, manmade fibers having a fiber length of from 6.0 to 12.0 mm. The airlaid web is a homogeneous mat of the natural cellulose fibers, the optional manmade fibers and the bonding fibers and is not laid on a precursor web. No non-fiber adhesive or binder is utilized. The airlayering and hydroentangling are conducted in a continuous operation. The method to manufacture the nonwoven web may include an embossing or crepeing operation.

The present invention addresses the problem of providing: a polishing pad that is long-lasting, has a high polish rate, and is capable of producing a high degree of flatness on polished articles; and a method for manufacturing the polishing pad. The solution provided is to eliminate a sea component from a non-woven fabric that includes a binder fabric and a sea-island type composite fiber composed of the sea component and an island component, the island component having a diameter of 10-2500 nm, and to add a polymer elastic body to the non-woven fabric.

Self-regulating insulative batting is provided. The batting includes a blend of a plurality of fibers including functional fibers and non-functional fibers. The plurality of fibers are non-woven and oriented substantially vertically along a thickness direction of the batting. The functional fibers are configured to self-regulate at least one insulative quality of the batting based on changes in at least one environmental condition interacting with the batting. At least one of the length and thickness of the functional fibers changes based on changes in at least one environmental condition interacting with the batting. Articles comprising the self-regulating batting and methods of making the self-regulating batting are also provided.

A light weight composite thermally insulating sheet is comprised of down insulation mixed with binding fibers and plant-based material fibers. The plant-based material fibers maintain their original state during heat treatment to bind the core material together. As the binding fibers soften, they bind together at their crossing and also attach to the plant-based material fibers which remain in their original state creating an inner bonded support fiber structure made of plant-based material fibers and binding fibers. This fiber structure maintains the loft in the core by resisting to heat deformation of the binder material during the heat treatment to reduce compression of core material. The plant-based material fibers also act as wicking conductors to conduct moisture out of the down material and providing a faster drying of the thermally insulating sheet. Carbon fibers may be added to the core mixture of the scrim sheets, if used, may be formed of charcoal yarn to absorb odors.

A fluid management layer having an integrated, carded, nonwoven is described. The fluid management layer has a basis weight of between about 115 grams per square meter (gsm) and about 200 gsm; a plurality of absorbent fibers; a plurality of stiffening fibers; and a plurality of resilient fibers. The absorbent fibers make up from about 20 percent to about 60 percent by weight of the fluid management layer. The stiffening fibers have a dtex of between 4 and 10, and the resilient fibers have a dtex of between 3 and 12.

Nonwoven webs having excellent fluid handling characteristics are disclosed. The nonwoven webs are made from a combination of binder fibers and structure fibers. The structure fibers are made from multicomponent, hollow fibers. The structure fibers include first polymer component zones that alternate with second polymer component zones around the circumference of the fiber. The first polymer component zone is made from a polymer having a lower melting temperature than the polymer contained in the second polymer component zone. In this manner, the fibers have a three-dimensional conformation that produces significant void volume within the nonwoven web.