Described herein is an acoustic building panel comprising: a body comprising a fibrous material and having a first major surface opposite a second major surface and a side surface extending there-between, the fibrous material comprising polyester fiber in an amount of at least 70 wt. % based on the total weight of the fibrous material; wherein the body has a bulk density as measured between the first major surface, the second major surface, and the side surface, the bulk density ranging from about 4.8 lb./ft.sup.3 to about 6.0 lb./ft.sup.3.

Described herein is an acoustic building panel comprising: a body comprising a fibrous material and having a first major surface opposite a second major surface and a side surface extending there-between, the fibrous material comprising polyester fiber in an amount of at least 70 wt. % based on the total weight of the fibrous material; wherein the body has a bulk density as measured between the first major surface, the second major surface, and the side surface, the bulk density ranging from about 4.8 lb./ft.sup.3 to about 6.0 lb./ft.sup.3.

Provided are bicomponent fibers. The bicomponent fiber comprises a first region and a second region. The first region comprises a first ethylene/alpha-olefin interpolymer, and the second region comprises a second ethylene/alpha-olefin interpolymer. The first ethylene/alpha-olefin interpolymer has a highest peak melting temperature (Tm) less than 130° C. and at least 3.5° C. greater than a highest peak melting temperature of the second ethylene/alpha-olefin interpolymer. The bicomponent fibers can be used for forming nonwovens that in aspect have improved tensile strength, elongation at break, and/or abrasion resistance.

Provided are bicomponent fibers. The bicomponent fiber comprises a first region and a second region. The first region comprises a first ethylene/alpha-olefin interpolymer, and the second region comprises a second ethylene/alpha-olefin interpolymer. The first ethylene/alpha-olefin interpolymer has a highest peak melting temperature (Tm) less than 130° C. and at least 3.5° C. greater than a highest peak melting temperature of the second ethylene/alpha-olefin interpolymer. The bicomponent fibers can be used for forming nonwovens that in aspect have improved tensile strength, elongation at break, and/or abrasion resistance.

A cleaning member includes a nonwoven structure whose shape is retained by entanglement between single fibers having a median fiber diameter of from 100 to 2000 nm. The nonwoven structure has an apparent density of from 0.05 to 0.60 g/cm.sup.3. Preferably, the cleaning member may further include a support, and the support and the nonwoven structure may be arranged in contact with one another. Preferably, the single fiber may be an electrospun fiber. A method for manufacturing a cleaning member includes: a step of performing spinning by electrospinning, and thereby forming a deposit of a single fiber; and a step of pressing the deposit, and thereby forming a nonwoven structure having an apparent density of from 0.05 to 0.60 g/cm.sup.3.

A 3D shaped packaging product (20) for cushioning and/or thermal insulation of packaged goods is formed by hot pressing at an average pressure equal to or below 200 kPa of an air-laid blank (10) comprising natural fibers at a concentration of at least 70% by weight of the air-laid blank (10) and a thermoplastic polymer binder at a concentration selected within an interval of from 4 up to 30% by weight of the air-laid blank (10). The 3D shaped packaging product (20) has a density that is less than four times a density of the air-laid blank (10) and the density of the 3D shaped packaging product (20) is selected within an interval of from 15 to 240 kg/m.sup.3. The 3D shaped packaging product (20) maintains at least a significant portion of the porosity of the air-laid blank (10) even after hot pressing and therefore provides excellent shock absorbing and damping properties and thermal insulation.

A folded 3D shaped packaging product (30) is folded at at least one crease (22A, 22B, 22C, 22D, 22E) constituting a folding line in a 3D shaped product (20) formed by hot pressing of an air-laid blank (10) comprising natural fibers at a concentration of at least 70% by weight of the air-laid blank (10) and a thermoplastic polymer binder at a concentration selected within an interval of from 4 up to 30% by weight of the air-laid blank (10). The folded 3D shaped packaging product (30) is useful for cushioning and/or thermal insulation of packaged goods and can protect multiple sides of the packaged goods.

The invention relates to a nonwoven fabric sheet comprising at least two adjacent layers of spunbonded nonwoven webs, one of which is an elastic layer in the form of a spunbonded nonwoven web comprising elastic fibers formed from a thermoplastic elastomer polymer material. The invention further relates to a method of manufacturing such nonwoven and the use of such nonwoven.

The invention relates to a nonwoven fabric sheet comprising at least two adjacent layers of spunbonded nonwoven webs, one of which is an elastic layer in the form of a spunbonded nonwoven web comprising elastic fibers formed from a thermoplastic elastomer polymer material. The invention further relates to a method of manufacturing such nonwoven and the use of such nonwoven.

A method for recycling a nonwoven fabric, including: a waste nonwoven fabric pulverization step of pulverizing a waste nonwoven fabric to obtain pulverized waste nonwoven fabric particles; a material mixing step of dispersing and mixing the pulverized nonwoven fabric particles and a filler in water to obtain a nonwoven fabric mixture; a raw material mixing step of adding a fixing agent for agglomeration of the pulverized waste nonwoven fabric particles and the filler to the nonwoven fabric mixture, followed by mixing, to form a raw material; a draining step of separating and removing water from the raw material to form a recycled nonwoven fabric sheet; a first lamination step of laminating the plurality of recycled nonwoven fabric sheets to form a laminate; and a compressing/dehydrating step of compressing and dehydrating the laminate.