The present invention provides a method for decontaminating a skin area contaminated with noxious substances by absorbing or capturing the substances, and the method comprises the steps of applying absorbent textile composite material to the contaminated skin area for a predetermined period of time, and removing the absorbent textile composite material from the contaminated skin area.

A method for producing an air-filter filter material according to the present disclosure includes: an adhesion step of adhering a polyvinyl alcohol aqueous solution to a support, having fluid permeability, and bringing the support into a wet state; and a drying step of drying the polyvinyl alcohol aqueous solution adhered to the support in a wet state at 140 C. or higher; in the method, the polyvinyl alcohol aqueous solution contains a cationic surfactant and a water repellent and is free of binder resins other than polyvinyl alcohol, and pores, serving as fluid permeation paths, of the support is, by the polyvinyl alcohol aqueous solution being dried after completion of the drying step, equipped with a mesh-like network of polyvinyl alcohol.

The present invention relates of a biodegradable and hydrophobic polylactic acid (PLA) non-woven material and a process for manufacturing thereof, said PLA non-woven material comprising a non-woven fabric for personal protective equipment, and a non-woven fabric for the three layer surgical mask; said PLA non-woven material comprising a layer of nanofiber membrane and a layer of biodegradable spunbond fabric which could fulfil the international biodegradation standard EN13432. Said non-woven fabric for the PPE has at least 45N breaking force, at least 15% elongation, and having passed level 3 fluid resistance test according to AATCC 42 and AATCC 127.

The present invention relates to an air-permeable stretchable circuit, which can be activated by stamping, preparation method and use thereof, belonging to the field of flexible electronic technology. The preparation method includes steps of: dissolving a thermoplastic polymer in a solvent, then adding liquid metal particles and mixing to obtain a mixed solution; performing electrospinning on the mixed solution to prepare a nanofiber membrane; performing stamping on the nanofiber membrane with a stamping mould having a circuit pattern, to obtain the air-permeable stretchable circuit. The invention ensures air-permeability and stretchability through using nanofiber membranes. Due to the matching diameters of the liquid metal particles and the fibers, stamping can cause the liquid metal inside the nanofibers to overflow and form conductive paths, thereby achieving high-precision preparation of circuits.

A method of electrospinning a plurality of fibers (150) is provided. The method includes providing at least one collector (120) and a single extruder (110). The extruder (110) includes a channel (112) housing a precursor liquid (190). The method includes dispensing the precursor liquid (190) from the extruder (110), and in response to an electric field, collecting fibers (150) formed from the precursor liquid (190) by a collector (120) to form a hollow casing (210) of fibers (150).

A method for manufacturing an electret melt blown nonwoven fabric, wherein, when a non-electroconductive polymer is melt-spun from a spinneret having a plurality of spinning holes in the width direction and a spun yarn is collected by a yarn collection device provided below to form a melt blown nonwoven fabric, water is sprayed by a spray nozzle to the spun yarn between the spinneret and the yarn collection device to electretize the melt blown nonwoven fabric, the spray nozzle includes a plurality of water discharge openings arranged in the width direction and a pair of air discharge openings that are opened continuously or intermittently in the width direction and arranged to face each other, and air discharged from the air discharge openings is made to collide with water discharged from the plurality of water discharge openings to spray the water on the spun yarn.

To provide a solid electrolyte layer configured to suppress an increase in resistance, a solid-state battery, and a method for producing the solid-state battery. A solid electrolyte layer for solid-state batteries, wherein the solid electrolyte layer comprises a nonwoven fabric and a solid electrolyte; wherein the solid electrolyte is disposed in an interior of the nonwoven fabric; wherein the solid electrolyte is solid electrolyte particles; and wherein a ratio of an average fiber diameter of the nonwoven fabric to an average particle diameter of the solid electrolyte particles, is 25 or more and 100 or less.

Provided is cloth that is excellent in dust protection and liquid protection with a first outermost layer of a layered nonwoven fabric containing a predetermined amount of an antistatic agent relative to the entire layer, a second outermost layer of the layered nonwoven fabric containing a predetermined amount or less of an antistatic agent relative to the entire layer, where a joint region includes a seam allowance located on the inner side of the cloth and a tape member, and the seam allowance is covered with the tape member, where at least both end portions of the tape member in a short-side direction are fixed to the second outermost layer, and water pressure resistance (A) of the layered nonwoven fabric is in a predetermined range, and a ratio of water pressure resistance (B) of the joint region to the water pressure resistance (A) is in a predetermined range.

The electret of the present invention comprises 90 mass % or more of polyolefin resin; 0.1 to 5 mass % of a hindered phenol compound having an amide bond; and 0.1 to 5 mass % of a nitrogen-containing compound having a hydroxylamine structure.

A honeycomb structure which is an aggregate of a plurality of microtubes comprising a cellulose nanofiber, wherein the microtubes have an opening shape which is polygonal, wherein the ratio of an average long diameter 2 (m) to an average short diameter 1 (m) (2/1) is 2.0 or less, when the average long diameter 2 (m) is an average of longest diameters of the opening diameters of the individual microtubes, and the average short diameter 1 (m) is an average of shortest diameters of the opening diameters of the individual microtubes, and wherein both standard deviations 1, 2 for the respective frequency distributions of the short diameter and long diameter in the opening shape of the microtubes are 20.0 m or less.