An energy storage cell, including at least one electrode/separator assembly received in a housing. The energy storage cell further includes a covering. The covering is disposed at least in some regions between the electrode/separator assembly and the housing. The covering is made of porous material. The porous material of the covering is open-cell.

The invention relates to nonwoven sheets that have an ability to elastically stretch in machine direction to a significant extent, while showing low elongation in cross machine direction. The invention also relates to a method for making such sheets.

A sea-island composite fiber in which island components are interspersed in a sea component on a fiber cross-section, wherein the island components have a composite structure formed with two or more different polymers joined together, and the ratio (L/D) of the length (L) of the joint section of the island component and the diameter (D) of the composite island component is 0.1 to 10.0. The sea-island composite fiber has satisfactory high-order processability, and therefore can be produced with high productivity and quality using existing equipment, and thin fibers obtained by removing the sea component have functions of structure control while having an excellent tactile impression.

A moldable composite with high heat resistance and noise absorption properties utilizes nonwoven fabrics and a heat resistance additive. The composition that provides both superior acoustic performance and excellent flex modulus that may be utilized in automotive products and applications in interior and exterior structures. A blowing agent may be utilized to create micro porous cells in a polymer non-woven structure. The cells or voids make the material lighter and allow the material to have superior acoustic properties that are useful in automotive applications.

Methods and apparatuses for producing a zoned and/or layered substrate are described. A substrate can include a first layer including a first zone, a second zone, and an interface between zones. The first zone can include a plurality of fibers. The second zone can include a plurality of fibers and can be offset from the first zone in a cross-direction. The interface can include at least some of the plurality of fibers of the first zone and at least some of the plurality of fibers of the second zone to provide a purity gradient with a transition width less than 3.8 cm as defined by the Purity Gradient Test Method as described herein.

Disclosed is an arrangement and a method for manufacturing of a web of packaging material for an oral pouched snuff product. The web is a saliva-permeable nonwoven web includes fibres, whereof 0%-95% of said fibres are of a first type and 5%-100% of a second type, the fibres of the first type being cellulose-based staple fibres, and the fibres of the second type being thermoplastic fibres, which are meltable and/or softenable at least at the surface. The arrangement includes a carding unit for carding the fibres to form a pre-web, an air-through bonding unit for bonding the pre-web by means of at least partial melting and/or softening of the fibres of the second type to form the web, and a calendering unit for surface treatment of the web.

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.

A filtration member for an antiviral air filter, having an upstream fiber layer for which the contact angle with respect to water is 60 or less, and a downstream fiber layer for which the contact angle with respect to water is 90 or greater, wherein the filtration member has an antiviral agent and a dispersant either on the upstream fiber layer or on the upstream-fiber-layer-side surface of the downstream fiber layer, and the solid fraction mass ratio of the antiviral agent and the dispersant ((mass of solid fraction of antiviral agent)/(mass of solid fraction of dispersant)) is 0.20-5.0.

The present invention provides a filtration member for an antiviral air filter in which the dust collection performance of the filter is ensured, and the amount of antiviral agent adhering to the filter is reduced and a high virus inactivation rate is achieved irrespective of changes in the environment around the filter.

A bonded and entangled non-woven structure made of at least 50% staple fibers by weight of the bonded and entangled non-woven structure, and at least a partial bonding of the fibers of the non-woven structure. The at least partial bonding including thermally activated bonds between a first polyolefin material produced with a catalyst including at least one metallocene catalyst and having a melting point in the range 130-170 C. and a second material having a melting point which is at least 10 C. higher than the melting point of the first material, the weight of the first material in the non-woven structure being at least 3% of the weight of the nonwoven structure.

This application relates to a protective cloth with moisture permeability and a manufacturing method thereof. The method includes: providing a first fiber thread and a second fiber thread; respectively forming a moisture-permeable membrane on a surface of an arrangement layer formed by the first fiber thread and a surface of an arrangement layer formed by the second fiber thread; and combining the first fiber thread and the second fiber thread in pairs by intersecting and laminating to form laminated bonding, where the first fiber thread and the second fiber thread with the moisture-permeable membrane are used as two opposite surface layers of the laminated bonding to allow the laminated bonding to form a corresponding moisture-permeable membrane layer. This application provides a high-level protective cloth with excellent moisture permeability and protective performance, and optimizes the moisture permeability of the protective cloth.