D04H1/498

FIBROUS NONWOVEN WEB
20210222335 · 2021-07-22 ·

The present invention relates to a fibrous nonwoven web, a method for its preparation as well as to uses of the novel fibrous nonwoven web.

FILTER MEDIUM COMPRISING A REINFORCED NON-WOVEN FABRIC

The invention relates to a filter medium comprising a reinforced non-woven fabric, to a method for the production thereof, and to the use thereof.

FILTER MEDIUM COMPRISING A REINFORCED NON-WOVEN FABRIC

The invention relates to a filter medium comprising a reinforced non-woven fabric, to a method for the production thereof, and to the use thereof.

STITCHBONDED, WASHABLE NONWOVEN TOWELS AND METHOD FOR MAKING
20210229396 · 2021-07-29 ·

A stitchbonded washable towel made from a stitchbonded fabric having a cellulosic nonwoven sheet of cellulosic fibers, and an integrated nonwoven sheet of an outer sublayer of wood pulp fibers, and an inner layer of textile fibers substantially entangled with the wood pulp fibers, and confronting the cellulosic nonwoven sheet of cellulosic fibers. The stitchbonded fabric as uses a pattern of stitching yarns that fixes the cellulosic nonwoven sheet to the integrated nonwoven sheet. A post-treatment of the stitchbonded fabric in a heated aqueous solution containing soil release polymer gathers the fabric into the towel, and provides stain and soil re-deposition resistance.

Electret-containing filter media
11077394 · 2021-08-03 · ·

Filter media, such as electret-containing filtration media for filtering gas streams (e.g., air), are described herein. In some embodiments, the filter media may be designed to have desirable properties such as stable filtration efficiency over the lifetime of the filter media, increased normalized gamma, relatively low pressure drop (i.e. resistance), and/or relatively low basis weight. In certain embodiments, the filter media may be a composite of two or more types of fiber layers where each layer may be designed to enhance its function without substantially negatively impacting the performance of another layer of the media. For example, one layer of the media may be designed to have a relatively low basis weight and/or a relatively high air permeability, and another layer of the media may be designed to have stable filtration efficiency and/or a relatively high efficiency throughout the filter media's lifetime. The filter media described herein may be particularly well-suited for applications that involve filtering gas streams (e.g., face masks, cabin air filtration, vacuum filtration, room filtration, furnace filtration, respirator equipment, residential or industrial HVAC filtration, high-efficiency particulate arrestance (HEPA) filters, ultra-low particular air (ULPA) filters, medical equipment), though the media may also be used in other applications.

LAYERED FLEECE FOR POUCHED PRODUCT

The disclosure provides oral pouched products in the form of a porous pouch defining a cavity containing a composition adapted for oral use, wherein the porous pouch is formed from a fleece material comprising two or more layers, wherein the two or more layers are in direct contact with one another. The disclosure also provides pouched products that include at least one layer of fleece material and at least one layer of a gel that is in direct contact with the fleece material. The disclosure also provides methods of forming such pouched products and for controlling/tailoring certain properties of pouched products using such multi-layered and/or gel-based approaches.

VERTICALLY LAPPED NONWOVEN IN EYEWEAR
20210244569 · 2021-08-12 ·

Provided are vertically lapped nonwoven layers in eyewear with the effect of reducing condensation and moisture buildup near the face of the wearer while simultaneously improving antifogging and comfort in wearing the eyewear. Exemplary vertically lapped nonwoven dual layers comprise one or more hydrophobic layers and one or more hydrophilic layers that are adhered to each other by a plurality of methods and are further integrated into the frame of the eyewear so that the hydrophilic layer is in direct contact with the wearer's face. The hydrophilic part of the dual layer wicks sweat or bodily fluid from the wearer into the nonwoven and transports the moisture to the hydrophobic layer for fast evaporation, thus eliminating the tendency to develop fogging while keeping the skin dry. The nonwoven dual layer is environmentally friendly as the layers can be made of recycled materials and may be fully recyclable.

Continuous fiber brake rotor preform and apparatuses and methods for manufacturing same
11047443 · 2021-06-29 · ·

A continuous fiber brake rotor preform and apparatuses and methods for manufacturing the preform are disclosed herein. The preform comprises a plurality of continuous fiber streams or filaments forming a substantially helical structure having layers or flights compressed together in the preform's longitudinal direction. Each continuous fiber stream or filament may comprise the same or different types of fiber, extends substantially between longitudinally disposed preform ends, and resides laterally adjacent to another continuous fiber stream or filament within each layer or flight of the helical structure. The radial distance between each continuous fiber stream or filament and the preform's longitudinal axis varies with angular location about the longitudinal axis. The preform further comprises web or z-direction fiber interspersed within the helical structure with certain of the web or z-direction fibers and continuous fiber streams or filaments extending at least partially in the longitudinal direction between the preform's layers or flights.

Continuous fiber brake rotor preform and apparatuses and methods for manufacturing same
11047443 · 2021-06-29 · ·

A continuous fiber brake rotor preform and apparatuses and methods for manufacturing the preform are disclosed herein. The preform comprises a plurality of continuous fiber streams or filaments forming a substantially helical structure having layers or flights compressed together in the preform's longitudinal direction. Each continuous fiber stream or filament may comprise the same or different types of fiber, extends substantially between longitudinally disposed preform ends, and resides laterally adjacent to another continuous fiber stream or filament within each layer or flight of the helical structure. The radial distance between each continuous fiber stream or filament and the preform's longitudinal axis varies with angular location about the longitudinal axis. The preform further comprises web or z-direction fiber interspersed within the helical structure with certain of the web or z-direction fibers and continuous fiber streams or filaments extending at least partially in the longitudinal direction between the preform's layers or flights.

FLEXIBLE AND COMPLIANT MECHANICALLY-DEFORMED NONWOVENS FOR USE IN ABSORBENT ARTICLES

A mechanically deformed nonwoven comprising a plurality of protrusions extending outwardly from a first surface of the nonwoven and having openings c corresponding to the protrusions in a second surface of the nonwoven. The nonwoven has a Horizontal Bending Drop at 100 mm of at least 75 mm and a Z-Compliance Index of at least 50 mm.sup.3/N. The nonwoven can be used in absorbent articles such as diapers as an acquisition layer between the absorbent core and the backsheet and/or as a masking layer between an absorbent layer core and the backsheet.