Abstract: A structure for manufacturing a cast article includes an organic component, at least a portion thereof being an organic fiber. The structure has a mass reduction rate of 1 mass % or greater to less than 20 mass % when heated under nitrogen atmosphere at 1000° C. for 30 minutes. The cast-article-manufacturing structure includes an inorganic particle. The cast-article-manufacturing structure includes, as the inorganic particle, a first inorganic particle having a predetermined shape and/or physical property, and a second inorganic particle having a predetermined shape and/or physical property different from the first inorganic particle. In addition thereto or instead thereof, the cast-article-manufacturing structure has a maximum bending stress of 9 MPa or greater measured in conformity with JIS K7017, and a bending strain of 0.6% or greater at the maximum bending stress.

Abstract: A hair holder (1) includes a tubular body (2) constructed in such a manner that a hair bundle (H) is insertable from an opening (1a) at one end toward an opening (1b) at the other end. The hair holder (1) has a longitudinal direction (X) and a width direction (Y). The hair holder (1) is constructed in such a manner that the hair holder can be rolled up along the longitudinal direction (X). The hair holder (1) includes a first sheet (21) to be located on an inner side in the rolled-up state, and a second sheet (22) to be located on an outer side. One or both of the two sheets (21, 22) satisfies at least one of condition (1) or (2) below: (1) the sheet includes a polyester-based nonwoven fabric, and the sheet’s storage modulus E? in dynamic viscoelasticity measured at 100° C. at a frequency of 1 Hz is 50 MPa or greater; or (2) the sheet includes a polyester-based nonwoven fabric, and the sheet’s storage modulus E? in dynamic viscoelasticity measured at 150° C. at a frequency of 1 Hz is 19.2 MPa or greater.

Abstract: A structure for manufacturing castings, containing an inorganic fiber, a layered clay mineral, and an inorganic particle other than the layered clay mineral and having an organic content of 5 mass % or lower or having a mass loss of 5 mass % or lower when heated at 1000° C. for 30 minutes. The inorganic particle preferably contains one or more selected from obsidian, graphite, and mullite. The inorganic fiber preferably contains carbon fiber. The inorganic fiber preferably has an average length of 0.5 to 15 mm. The layered clay mineral preferably contains one or more selected from bentonite and montmorillonite.

Abstract: A hair holder (1) includes a tubular body (2) that is constituted by a sheet and through which a bundle of hair can be inserted from an opening (21) at a one end toward an opening (22) at the other end, and has a flat shape. The tubular body (2) includes a first surface sheet (23A) and a second surface sheet (23B) that are located on the inside and the outside, respectively, in a state in which the hair holder (1) is rolled up. Side regions of the first surface sheet (23A) and side regions of the second surface sheet (23B) are joined to each other, thereby forming a pair of side joined regions (24) in the tubular body (2). The side joined regions (24) have a plurality of second-surface-sheet-side recesses (25) along a longitudinal direction (X) of the side joined regions (24), the recesses being recessed from the second surface sheet (23B) side toward the first surface sheet (23A) side.

Abstract: A hair holder (1) of the present invention includes a tubular body (2) and a fixing member (5). The tubular body (2) has a first surface sheet (23A) and a second surface sheet (23B). The second surface sheet (23B) has a plurality of slits (25) that extends in a width direction and that is intermittently arranged along a longitudinal direction. The fixing member (5) has a first member (5a) and second members (5b) that can be detachably joined together. The first member (5a) is arranged on the first surface sheet (23A) on the side of a first opening (21) located at a first end in the longitudinal direction. The second surface sheet (23B) has a central region (M) in the width direction, where the plurality of slits is provided, and a pair of side regions (S) each of which is located on opposite sides of the central region (M). The second members (5b) are arranged in the pair of side regions (S), respectively, so as to extend in the longitudinal direction.

Abstract: A hair holder (1) of the present invention includes a tubular body (2) and a fixing member (5). The tubular body (2) has a first surface sheet (23A) and a second surface sheet (23B). The second surface sheet (23B) has a plurality of slits (25) that extends in a width direction and that is intermittently arranged along a longitudinal direction. The fixing member (5) has a first member (5a) and second members (5b) that can be detachably joined together. The first member (5a) is arranged on the first surface sheet (23A) on the side of a first opening (21) located at a first end in the longitudinal direction. The second surface sheet (23B) has a central region (M) in the width direction, where the plurality of slits is provided, and a pair of side regions (S) each of which is located on opposite sides of the central region (M). The second members (5b) are arranged in the pair of side regions (S), respectively, so as to extend in the longitudinal direction.

Abstract: A hair holder (1) of the present invention has a tubular body (2) which has: a first opening (21) located at one end; and a second opening (22) located at the other end, and which is configured to allow a lock of hair (H) to be inserted from the first opening (21) toward the second opening (22) and to be capable of being rolled up. The tubular body (2) has a longitudinal direction and a width direction that is orthogonal to the longitudinal direction. The tubular body (2) has two sheets that form outer surfaces. At least one of the two sheets is formed of a color-changeable sheet that satisfies conditions (1) and (2) below: (1) an L* value in an L*a*b* color coordinate space is 90 or less; and (2) a color difference ?E*ab value in the L*a*b* color coordinate space between before and after impregnation with a standard hair treatment agent is 1.0 or greater.

Abstract: A hair treatment method for curling a lock of hair using a hair holder. The hair holder includes a tubular body which has an opening located at a first end and an opening located at a second end of the tubular body, and configured to allow a lock of hair be inserted from the first end opening of the tubular body toward the second end opening and to be capable of being rolled up. The method includes inserting a lock of hair into the hair holder, rolling up the tubular body together with the lock of hair inserted therein, so that the number of turns of the lock of hair is less than one, and curling the lock of hair in this wound state. A hair holder in which the tubular body is configured to be wound less than one turn is suitably used in this hair treatment method.

Abstract: A hair holder (1) of the present invention includes a tubular body (2) and a fixing member (5). The tubular body (2) has a first surface sheet (23A) and a second surface sheet (23B). The second surface sheet (23B) has a plurality of slits (25) that extends in a width direction and that is intermittently arranged along a longitudinal direction. The fixing member (5) has a first member (5a) and second members (5b) that can be detachably joined together. The first member (5a) is arranged on the first surface sheet (23A) on the side of a first opening (21) located at a first end in the longitudinal direction. The second surface sheet (23B) has a central region (M) in the width direction, where the plurality of slits is provided, and a pair of side regions (S) each of which is located on opposite sides of the central region (M). The second members (5b) are arranged in the pair of side regions (S), respectively, so as to extend in the longitudinal direction.

Abstract: A hair holder (1) includes a tubular body (2) that is constituted by a sheet and through which a bundle of hair can be inserted from an opening (21) at a one end toward an opening (22) at the other end, and has a flat shape. The tubular body (2) includes a first surface sheet (23A) and a second surface sheet (23B) that are located on the inside and the outside, respectively, in a state in which the hair holder (1) is rolled up. Side regions of the first surface sheet (23A) and side regions of the second surface sheet (23B) are joined to each other, thereby forming a pair of side joined regions (24) in the tubular body (2). The side joined regions (24) have a plurality of second-surface-sheet-side recesses (25) along a longitudinal direction (X) of the side joined regions (24), the recesses being recessed from the second surface sheet (23B) side toward the first surface sheet (23A) side.

Abstract: A structure for manufacturing castings, containing an inorganic fiber, a layered clay mineral, and an inorganic particle other than the layered clay mineral and having an organic content of 5 mass % or lower or having a mass loss of 5 mass % or lower when heated at 1000° C. for 30 minutes. The inorganic particle preferably contains one or more selected from obsidian, graphite, and mullite. The inorganic fiber preferably contains carbon fiber. The inorganic fiber preferably has an average length of 0.5 to 15 mm. The layered clay mineral preferably contains one or more selected from bentonite and montmorillonite.