A meltblown material formed from bicomponent fibers that can withstand the effects of a gamma irradiation sterilization process without negatively impacting bacterial filtration, particulate filtration, and/or breathability of personal protective equipment products formed from the meltblown material (e.g., facemasks, surgical gowns, surgical caps, etc.) is provided. The bicomponent fibers include a polyester-based sheath and a polyolefin-based core. Further, both the sheath and core include specific antioxidants and charge enhancer packages that allow for the effective electret treatment of the resulting meltblown material prior to sterilization, where the filtration efficiency and pressure differential of the material are still adequate post-sterilization.

Systems, devices and methods are provided for producing fibrous materials and products, such as filters. A system comprises a first device for generating one or more fiber stream(s), and a second device for isolating nanoparticles within a gaseous medium. The second device forms the nanoparticles into a stream and feeds this stream into the fiber streams to form the fibrous material. This distributes the nanoparticles more uniformly throughout the fibrous material. In addition, the nanoparticles increase the overall surface area within the material, which, in certain applications, increases its filtration efficiency and allows for the capture of submicron contaminants without significantly compromising other factors, such as pressure drop through the filter. Filters produced with these systems and methods are capable of withstanding rigorous conditioning, which allows the filter to achieve substantially the same level of filtration performance throughout the lifetime of the filter.

Systems, devices and methods are provided for producing fibrous materials and products, such as filters. A system comprises a first device for generating one or more fiber stream(s), and a second device for isolating nanoparticles within a gaseous medium. The second device forms the nanoparticles into a stream and feeds this stream into the fiber streams to form the fibrous material. This distributes the nanoparticles more uniformly throughout the fibrous material. In addition, the nanoparticles increase the overall surface area within the material, which, in certain applications, increases its filtration efficiency and allows for the capture of submicron contaminants without significantly compromising other factors, such as pressure drop through the filter. Filters produced with these systems and methods are capable of withstanding rigorous conditioning, which allows the filter to achieve substantially the same level of filtration performance throughout the lifetime of the filter.

A cleaning product including: a first sheet; a second sheet joined to the first sheet; an absorbent core between the first sheet and the second sheet, wherein the absorbent core extends along a longitudinal axis between opposing transverse edges that cross the longitudinal axis and longitudinal edges spaced apart from the longitudinal axis and extending between the transverse edges, wherein the cleaning product has a sagittal plane coincident with the longitudinal axis; and an outer strip joined to the first sheet and extending along a strip axis parallel to and offset from the longitudinal axis, wherein the outer strip has a trailing edge inboard of the strip axis and a leading edge outboard of the strip axis, wherein the trailing edge is nearer to the sagittal plane than the longitudinal edge and the leading edge is further from the sagittal plane than the longitudinal edge.

A cleaning product including: a first sheet; a second sheet joined to the first sheet; an absorbent core between the first sheet and the second sheet, wherein the absorbent core extends along a longitudinal axis between opposing transverse edges that cross the longitudinal axis and longitudinal edges spaced apart from the longitudinal axis and extending between the transverse edges, wherein the cleaning product has a sagittal plane coincident with the longitudinal axis; and an outer strip joined to the first sheet and extending along a strip axis parallel to and offset from the longitudinal axis, wherein the outer strip has a trailing edge inboard of the strip axis and a leading edge outboard of the strip axis, wherein the trailing edge is nearer to the sagittal plane than the longitudinal edge and the leading edge is further from the sagittal plane than the longitudinal edge.

The present application provides methods of secondary oil containment comprising lining a liquid hydrocarbon containment basin with a fibrous textile comprising a styrenic block copolymer (SBC), wherein the fibrous textile comprising SBC is produced by a melt blown process. Also provided are fibrous textiles produced by melt blowing styrenic block copolymers (SBC).

The present application provides methods of secondary oil containment comprising lining a liquid hydrocarbon containment basin with a fibrous textile comprising a styrenic block copolymer (SBC), wherein the fibrous textile comprising SBC is produced by a melt blown process. Also provided are fibrous textiles produced by melt blowing styrenic block copolymers (SBC).

A contaminant sorptive buoyant pad is provided to preferentially absorb or adsorb contaminants from a water body surface. The pad includes a laminar core which is formed from side-by-side stacked layers of superabsorbent meltblown polypropylene microfiber fabric, and which has a density less than water. The porosity and inter-layer spacing between adjacent stacked layers is selected to facilitate contaminate absorptive and the capillary movement and wicking of hydrocarbons and other contaminants from the water surface into the pad interior.

A contaminant sorptive buoyant pad is provided to preferentially absorb or adsorb contaminants from a water body surface. The pad includes a laminar core which is formed from side-by-side stacked layers of superabsorbent meltblown polypropylene microfiber fabric, and which has a density less than water. The porosity and inter-layer spacing between adjacent stacked layers is selected to facilitate contaminate absorptive and the capillary movement and wicking of hydrocarbons and other contaminants from the water surface into the pad interior.

The present application discloses a single sided hydrophilic nonwoven fabric with high tensile strength and a CSR wrap made therefrom, wherein the single sided hydrophilic nonwoven fabric has a spunbonded/meltblown/spunbonded (SMS) structure consisting of a top spunbonded layer, a middle meltblown layer and a bottom spunbonded layer, wherein one side of the nonwoven fabric is hydrophilic, and the other side of the nonwoven fabric is hydrophobic.