Abstract: Disclosed herein is a separator for an electrochemical element, comprising a fibrous structure, wherein the fibrous structure has a first fibrous layer part in which short fibers and/or pulp-like fibers are intertwined with each other, and a second fibrous layer part; some of the short fibers and/or the pulp-like fibers constituting the first fibrous layer part penetrates the second fibrous layer part; and a pore diameter distribution of the fibrous structure satisfies the following formula: 0 ?m<Dmax<18 ?m, and 0 ?m?(Dmax?Dave)<13 ?m, wherein Dmax is a maximum pore diameter (?m) of the fibrous structure, and Dave is an average pore diameter (?m) of the fibrous structure.

Abstract: The present invention relates to a molding base material (10) with which it is possible to prepare a vehicle exterior material such as an underbody shielding material. As a result of continued investigations, the applicant of the present application found that the objective of the present invention could be achieved by means of a “molding base material including a fiber base material layer (1) and a cover layer (3), wherein the fiber base material layer and the cover layer are integrally bonded to one another by means of a polypropylene-based resin layer (5) present at the interface between the fiber base material layer and the cover layer”, and wherein the fiber base material layer contains sheath-core type composite fibers of which the core portion is a polyester-based resin and the sheath portion is a polypropylene-based resin.

Abstract: Provided is a filter material for an automatic transmission oil filter that has excellent filtration performance and that can trap even dust having a small particle size. The filter material comprises an entangled nonwoven fabric in which fine fibers generated from dividable composite fibers are entangled with each other.

Abstract: The present invention relates to a molding substrate capable of realizing an exterior material for a vehicle from which the attached snow or ice is more easily peeled off. As a result of continuing studies by the applicant of the present application, it has been found that the problem that the adhered snow and ice hardly peels off, which occurs on a molding base material provided with a fiber base layer containing a core-sheath type conjugate fiber in which the sheath portion is a polypropylene-based resin and the core portion is a polyester-based resin, can be solved by adjusting the mass percentage of the core-sheath type conjugate fiber occupying the fiber constituting the fiber base material layer. Specifically, the present inventors have provided a molding substrate which can realize an exterior material such as an exterior material for a vehicle from which adhered snow or ice is easily peeled off, by being a molding substrate having a fiber base layer having a mass percentage of more than 70% by mass.

Abstract: To provide a surface material comprising main surfaces which are excellent feeling in touch and hardly cause fiber dropouts, and to provide a method for producing the same. In a surface material comprising binder and a monolayer fabric, it was found that a surface material satisfying both of the following configurations is a surface material with main surfaces which are excellent feeling and hardly cause fiber dropouts a configuration that there is no layer of binder on both main surfaces in the fabric, and, a configuration that there are one or more layers of binder between both main surfaces in the fabric.

Abstract: An object is to realize a base material nonwoven fabric for molding excellent in handling as a material, by preventing peeling between laminated components constituting the base material for molding; and even after the base material is reheated and molded, to provide a molded product having excellent elasticity resistant to external forces such as flying debris or the like, and while maintaining peeling resistance, capable of realizing excellent sound absorbing characteristics, by suppressing air permeability inhibition due to the adhesive component. A base material nonwoven fabric for molding in a predetermined shape by heat molding, characterized by having a two-layer structure of a long fiber nonwoven fabric layer comprising at least a polyester resin and a short fiber nonwoven fabric layer comprising a polyester resin, wherein a flow-solidified undrawn polypropylene layer is localized in the vicinity of an interface between the long fiber nonwoven fabric layer and the short fiber nonwoven fabric layer.

Abstract: The invention concerns a decorative fiber sheet having a print on one main surface of a fiber sheet, which has small variation in color of the decorative fiber sheet and is excellent in appearance quality due to small variation in printing amount in the decorative fiber sheet. When it contains cellulose nanofibers in a print, it is possible to provide a decorative fiber sheet which has small variation in color of the print contained in the decorative fiber sheet and is excellent in appearance quality.

Abstract: Disclosed are an inorganic nanofiber characterized in that the average fiber diameter is 2 ?m or less, the average fiber length is 200 ?m or less, and the CV value of the fiber length is 0.7 or less; and a method of manufacturing the same. In the manufacturing method, an inorganic nanofiber sheet consisting of inorganic nanofibers having an average fiber diameter of 2 ?m or less is formed by electrospinning, and then, the inorganic nanofiber sheet is pressed using a press machine and crushed so that the average fiber length becomes 200 ?m or less, and the CV value of the fiber length becomes 0.7 or less.

Abstract: Provided are a cell-holding substrate holder for preparing an observation specimen, and a cell-holding substrate kit, wherein the cell-holding substrate can be easily attached and detached. Also provided is a method of preparing an observation specimen, wherein cell organelles can be satisfactorily observed using an optical microscope, while three problems of cell detachment, drying, and loss of the three-dimensional properties can be simultaneously solved. The cell-holding substrate holder comprises (1) a support plate 1 having a cell-holding substrate arrangement portion 12 having a window portion through which water can pass; and (2) a removable sandwiching plate 2, 3 which has a window portion through which water can pass, and is capable of working in conjunction with the support plate 1 to sandwich and fix a cell-holding substrate 9 in the cell-holding substrate arrangement portion 12. The cell-holding substrate kit 10 comprises the cell-holding substrate holder and a cell-holding substrate 9.

Abstract: A composite polymer electrolyte membrane has a high proton conductivity even under low-humidity, low-temperature conditions, a reduced dimensional change rate, a high mechanical strength and high chemical stability, and produces a solid polymer electrolyte fuel cell with a high output and high physical durability, a membrane electrode assembly, and a solid polymer electrolyte fuel cell containing the same. This composite polymer electrolyte membrane contains a composite layer composed mainly of a polyazole-containing nanofiber nonwoven fabric (A) and an ionic group-containing polymer electrolyte (B), the polyazole-containing nanofiber nonwoven fabric (A) being basic.

Abstract: The object of the present invention is to provide an interior trim surface material with a more excellent texture. The interior trim surface material of the present invention comprises a print layer on at least one main surface of a fiber aggregate, and has a main surface (a main surface on which the print layer is exposed in the interior trim surface material) with a surface roughness (SMD) of less than 2.71 ?m and an average frictional coefficient (MIU) of more than 0.27. When these conditions are satisfied, it is possible to provide an interior trim surface material that has an excellent texture, such as a feeling of high moistness, while still imparting a sensation that feels smooth and fine texture.

Abstract: A filtration material of the present invention comprises a bulky fiber sheet layer having a thickness of 0.5 mm or more, and a triboelectrically-charged nonwoven fabric layer in which two or more types of fibers different in constituent resin are mixed, wherein constituent fibers of the triboelectrically-charged nonwoven fabric layer penetrate into the bulky fiber sheet layer. A three-layer filtration material of the present invention comprises bulky fiber sheet layers having a thickness of 0.5 mm or more, and a triboelectrically-charged nonwoven fabric layer, which is located between the bulky fiber sheet layers, wherein the constituent fibers of the triboelectrically-charged nonwoven fabric layer penetrate into the bulky fiber sheet layers, and both bulky fiber sheet layers contain fibers having a limiting oxygen index of 20 or more, and have a mass per unit area 0.5 times or more than that of the triboelectrically-charged nonwoven fabric layer.

Abstract: Provided is an air-permeable sheet (3) to be used in a state of being interposed between a suction stage (1) and an air-impermeable substrate (4) when printing is performed by a sheet-fed method on the surface of the substrate (4) fixed by suction to the suction stage (1), the air-permeable sheet capable of printing a desired printing pattern on the surface of the substrate with high accuracy. The air-permeable sheet (3) includes a non-woven fabric layer (3b) and a support layer (3a) constituted by a woven fabric or knitted fabric.

Abstract: Disclosed are an inorganic nanofiber characterized in that the average fiber diameter is 2 ?m or less, the average fiber length is 200 ?m or less, and the CV value of the fiber length is 0.7 or less; and a method of manufacturing the same. In the manufacturing method, an inorganic nanofiber sheet consisting of inorganic nanofibers having an average fiber diameter of 2 ?m or less is formed by electrospinning, and then, the inorganic nanofiber sheet is pressed using a press machine and crushed so that the average fiber length becomes 200 ?m or less, and the CV value of the fiber length becomes 0.7 or less.

Abstract: Disclosed are an inorganic nanofiber characterized in that the average fiber diameter is 2 ?m or less, the average fiber length is 200 ?m or less, and the CV value of the fiber length is 0.7 or less; and a method of manufacturing the same. In the manufacturing method, an inorganic nanofiber sheet consisting of inorganic nanofibers having an average fiber diameter of 2 ?m or less is formed by electrospinning, and then, the inorganic nanofiber sheet is pressed using a press machine and crushed so that the average fiber length becomes 200 ?m or less, and the CV value of the fiber length becomes 0.7 or less.

Abstract: An object of the present invention is to provide a nonwoven fabric for molding with a good moldability, even when it is a binder-bonded and/or printed nonwoven fabric; and a surface material for automobile. In the nonwoven fabric for molding of the present invention, a binder for fiber bonding and/or a printing is applied to a fiber web, and a stress at 20% elongation in the cross direction of the nonwoven fabric for molding is 24 to 36 N/3-cm-width. The surface material for automobile of the present invention consists of the nonwoven fabric for molding. In the present invention, it has been found that a good moldability is achieved when a stress at 20% elongation in the cross direction is 24 to 36 N/3-cm-width.

Abstract: An object is to realize a base material nonwoven fabric for molding excellent in handling as a material, by preventing peeling between laminated components constituting the base material for molding; and even after the base material is reheated and molded, to provide a molded product having excellent elasticity resistant to external forces such as flying debris or the like, and while maintaining peeling resistance, capable of realizing excellent sound absorbing characteristics, by suppressing air permeability inhibition due to the adhesive component. A base material nonwoven fabric for molding in a predetermined shape by heat molding, characterized by having a two-layer structure of a long fiber nonwoven fabric layer comprising at least a polyester resin and a short fiber nonwoven fabric layer comprising a polyester resin, wherein a flow-solidified undrawn polypropylene layer is localized in the vicinity of an interface between the long fiber nonwoven fabric layer and the short fiber nonwoven fabric layer.

Abstract: The object of the present invention is to realize a separator that has excellent thermal stability in size, shape, and the like even in a high temperature environment. The separator comprises a nonwoven fabric obtained by subjecting a nonwoven fabric consisting of homo-PAN fibers to a flame proofing treatment in a temperature range of 210° C. to 300° C., wherein an ID/IN value, which is a ratio of an absorption peak intensity ID of a carbon double bond-derived region (1580-1610 cm?1) of the homo-PAN nonwoven fabric to an absorption peak intensity IN derived from a nitrile group (2240 cm?1), as determined by infrared absorption spectroscopy, is 0.07 or more; and wherein a fiber shape and size are stably maintained after immersion for 30 minutes in an electrolytic solution containing propylene carbonate at 140° C.

Abstract: Provided is a fiber sheet for molding, characterized in that a print resin is applied on the surface of the fiber sheet containing highly crimped fibers, and the amount of the print resin is 30 g/m2 or less, and the air permeability of the fiber sheet is 5 to 30 cm3/cm2/sec. The fiber sheet for molding can be molded without generating wrinkles, and has a good sound absorbing property. When a pattern is formed with the printing resin, the fiber sheet for molding is also excellent in design properties.

Abstract: Disclosed are an inorganic nanofiber characterized in that the average fiber diameter is 2 ?m or less, the average fiber length is 200 ?m or less, and the CV value of the fiber length is 0.7 or less; and a method of manufacturing the same. In the manufacturing method, an inorganic nanofiber sheet consisting of inorganic nanofibers having an average fiber diameter of 2 ?m or less is formed by electrospinning, and then, the inorganic nanofiber sheet is pressed using a press machine and crushed so that the average fiber length becomes 200 ?m or less, and the CV value of the fiber length becomes 0.7 or less.