Abstract: The present invention relates to a wound covering material containing at least a hydrogel, wherein the hydrogel contains fine fibrous celluloses having ionic substituents. The present invention also relates to a method of producing the wound covering material, including a process of obtaining a hydrogel using a mixture of hydrophilic polymers and fine fibrous celluloses having ionic substituents. Accordingly, there are provided a wound covering material having excellent water retention and strength and favorable adhesiveness and peelability with respect to a living body, and a method of producing the same.

Abstract: The present invention relates to a fiber treatment agent for electron beam fixing that contains an acrylic-modified organopolysiloxane (A) having two or more acrylic groups per molecule, as represented by the following general formula (I). MaMAbDcDAdTe??(I) (in the general formula (I), M=R1R2R3SiO1/2, MA=R4R5R6SiO1/2, D=R7R8SiO2/2, DA=R9R10SiO2/2, T=R11SiO3/2, R1 to R11 each independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or a phenyl group, R4 and R9 each independently represent a monovalent hydrocarbon group represented by the following general formula (II), a, to d each independently are 0 or a positive integer, e is an integer of 0 to 3, c+d is an integer of 10 to 1000, b+d is an integer of at least 2, and a+b is an integer equal to e+2.) (in the general formula (II), n is an integer of 1 to 3).

Abstract: The present invention relates to a fiber treatment agent for electron beam fixing that contains an acrylic-modified organopolysiloxane (A) having two or more acrylic groups per molecule, as represented by the following general formula (I). MaMAbDcDAdTe??(I) (in the general formula (I), M=R1R2R3SiO1/2, MA=R4R5R6SiO1/2, D=R7R8SiO2/2, DA=R9R10SiO2/2, T=R11SiO3/2, R1 to R11 each independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or a phenyl group, R4 and R9 each independently represent a monovalent hydrocarbon group represented by the following general formula (II), a, to d each independently are 0 or a positive integer, e is an integer of 0 to 3, c+d is an integer of 10 to 1000, b+d is an integer of at least 2, and a+b is an integer equal to e+2.) (in the general formula (II), n is an integer of 1 to 3.

Abstract: In one embodiment, the present invention relates to silicone-fixed fibers including fibers and silicone fixed to the fibers. The silicone includes an acrylic-modified organopolysiloxane (A) having two or more acrylic groups per molecule. A rate of decrease in the amount of Si after the silicone-fixed fibers are washed 10 times is less than 50%. The present invention relates to a method for producing silicone-fixed fibers. The method includes coating or impregnating the fibers with a fiber treatment agent containing silicone, and irradiating the fibers coated or impregnated with the fiber treatment agent with an electron beam so that the silicone is fixed to the fibers. The silicone includes an acrylic-modified organopolysiloxane (A) having two or more acrylic groups per molecule. Thus, the present invention provides silicone-fixed fibers that include fibers to which silicone is fixed by electron beam irradiation and have a good texture even after washing, and a method for producing the silicone-fixed fibers.

Abstract: The present invention relates to an atopic dermatitis suppressing fiber to which a compound containing a phosphate group is fixed by chemical bonding. The present invention further relates to an atopic dermatitis suppressing fiber assembly that includes the atopic dermatitis suppressing fiber arranged to contact skin. The present invention further relates to an atopic dermatitis suppressing fiber product that includes the atopic dermatitis suppressing fiber arranged to contact skin. The present invention further relates to a method for using the atopic dermatitis suppressing fiber and a method for suppressing atopic dermatitis that include: arranging the atopic dermatitis suppressing fiber to contact skin, thereby suppressing atopic dermatitis.

Abstract: The present invention relates to an atopic dermatitis suppressing fiber to which a compound containing a phosphate group is fixed by chemical bonding. The present invention further relates to an atopic dermatitis suppressing fiber assembly that includes the atopic dermatitis suppressing fiber arranged to contact skin. The present invention further relates to an atopic dermatitis suppressing fiber product that includes the atopic dermatitis suppressing fiber arranged to contact skin. The present invention further relates to a method for using the atopic dermatitis suppressing fiber and a method for suppressing atopic dermatitis that include: arranging the atopic dermatitis suppressing fiber to contact skin, thereby suppressing atopic dermatitis.

Abstract: The inhibitory fiber against virulence factors production of the present invention comprises a fiber and an inhibitor of virulence factors production fixed to the fiber by chemical bonding. The inhibitor of virulence factors production includes at least one compound selected from the group consisting of a phosphate group-containing compound, a carboxylic acid group-containing compound, and a ketone group-containing compound. The production method of the present invention comprises: irradiating the fiber with an electron beam; and bringing into contact with the fiber at least one compound selected from the group consisting of a phosphate group-containing compound, a carboxylic acid group-containing compound, and a ketone group-containing compound to chemically bond the at least one compound to the fiber.

Abstract: Disclosed is a method for producing a modified animal fiber, the method includes step 1 (31, 32) of pre-oxidizing a cystine bond (—S—S— bond) present in an epidermal cell of an animal fiber to bring the cystine bond into a low oxidation state, step 2 (33) of oxidizing with ozone the pre-oxidized —S—S— bond to bring the —S—S— bond into at least one high oxidation state selected from di-, tri-, and tetra-oxidation states, and step 3 (34) of reductively cleaving the —S—S— bond in a high oxidation state. The method imparts shrink resistance and pilling resistance to an animal fiber. In the step 2 (33) ozone is microdispersed in an aqueous solution comprising an anionic surfactant having a C8-24 alkyl group, and the animal fiber is contacted with the ozone.

Abstract: A method of manufacturing a cellulose/gelatin composite viscose rayon filament that is characterized by including a process in which a spinning process is carried out while a viscose spinning solution is mixed with a gelatin crosslinking solution, which makes it possible to produce a cellulose/gelatin composite viscose rayon having uniform strength and elongation without yarn disconnection.

Abstract: A sliver for spinning having a deodorizing and/or heat-generating moisture absorption function is provided, where a sliver for spinning formed as a bundle, in which staple fibers are aligned in one direction, is irradiated with an electron beam to provide an activating group and/or produce a radical on a surface of the fibers, and a compound including an ethylenic unsaturated double bond is chemically bonded to the surface of the fibers. A spun yarn of the invention is a spun yarn having a deodorizing and/or heat-generating moisture absorption function, including the above-described sliver for spinning that has been spun, or including the above-described sliver for spinning and a sliver other than the sliver for spinning that have been blended and spun. A fiber product of the invention has a deodorizing and/or heat-generating moisture absorption function, including the above-described spun yarn.

Abstract: The invention provides a fiber product wherein a zirconium phosphate layer is electrostatically fixed on a fiber substrate, and a photocatalyst is electrostatically fixed on the surface of the zirconium phosphate layer. Preferably, the fiber product has a zirconium phosphate multilayer of two or more zirconium phosphate layers laminated via an aluminum ion or a polyaluminum ion, wherein the zirconium phosphate layer, which is the innermost layer of the zirconium phosphate multilayer, is electrostatically fixed on a fiber substrate via an aluminum ion or a polyaluminum ion, and a photocatalyst is electrostatically fixed on the zirconium phosphate layer, which is the outermost layer of the zirconium phosphate multilayer.

Abstract: Disclosed is a method for producing a modified animal fiber, the method includes step 1 (31, 32) of pre-oxidizing a cystine bond (—S—S— bond) present in an epidermal cell of an animal fiber to bring the cystine bond into a low oxidation state, step 2 (33) of oxidizing with ozone the pre-oxidized —S—S— bond to bring the —S—S— bond into at least one high oxidation state selected from di-, tri-, and tetra-oxidation states, and step 3 (34) of reductively cleaving the —S—S— bond in a high oxidation state. The method imparts shrink resistance and pilling resistance to an animal fiber. In the step 2 (33) ozone is microdispersed in an aqueous solution comprising an anionic surfactant having a C8-24 alkyl group, and the animal fiber is contacted with the ozone.

Abstract: A sliver for spinning of the invention is a sliver for spinning having a deodorizing function and/or a heat-generating moisture absorption function, wherein a sliver for spinning formed as a bundle in which staple fibers are aligned in one direction is irradiated with an electron beam to provide an activating group and/or produce a radical on a surface of the fibers, and a compound including an ethylenic unsaturated double bond is chemically bonded to the surface of the fibers. A spun yarn of the invention is a spun yarn having a deodorizing function and/or a heat-generating moisture absorption function, including the above-described sliver for spinning that has been spun, or including the above-described sliver for spinning and a sliver other than the sliver for spinning that have been blended and spun. A fiber product of the invention has a deodorizing function and/or a heat-generating moisture absorption function, including the above-described spun yarn.

Abstract: A method of manufacturing a cellulose/gelatin composite viscose rayon filament that is characterized by including a process in which a spinning process is carried out while a viscose spinning solution is mixed with a gelatin crosslinking solution, which makes it possible to produce a cellulose/gelatin composite viscose rayon having uniform strength and elongation without yarn disconnection.

Abstract: A method for producing a colored cellulose fiber, comprising: a step (1) of introducing a carboxylic group or a sulfonic acid group into cellulose fiber, and a step (2) of treating the cellulose fiber having the carboxylic group or the sulfonic acid group introduced with an aromatic derivative having one or more hydroxyl groups and a metal salt simultaneously or separately, and a colored cellulose fiber produced by the same method.

Abstract: A coloring method of a tangible matter having a polyamide bond, characterized in that the tangible matter having a polyamide bond is treated with an aqueous solution containing an aromatic derivative having one or more hydroxyl groups and a metal salt at a temperature of 40° C. or more, and a polyamide tangible matter colored by such a method.

Abstract: A coloring method of a tangible matter having a polyamide bond, characterized in that the tangible matter having a polyamide bond is treated with an aqueous solution containing an aromatic derivative having one or more hydroxyl groups and a metal salt at a temperature of 40° C. or more, and a polyamide tangible matter colored by such a method.

Abstract: A method for producing a colored cellulose fiber, comprising: a step (1) of introducing a carboxylic group or a sulfonic acid group into cellulose fiber, and a step (2) of treating the cellulose fiber having the carboxylic group or the sulfonic acid group introduced with an aromatic derivative having one or more hydroxyl-groups and a metal salt simultaneously or separately, and a colored cellulose fiber produced by the same method.

Abstract: Animal adhesive cells, particularly human vascular endothelial cells, are cultured in serum-free condition by coating at least one polymer having cell adhesive activity on an inner surface of a culture vessel or surface of a carrier for cell culture, and culturing the cells in the coated vessel or with the coated carrier using a serum-free medium for animal cell culture containing isolated serum albumin, and preferably also transferrin. The polymer is a synthetic polymer modified with a peptide having cell adhesive activity or a natural polymer having cell adhesive activity or a combination thereof. Preferably, the peptide is RGDV, RGDS, RGDN, DGEA or YIGSR and the natural polymer is collagen, gelatin, keratin, fibronectin, vitronectin or laminin. A preferred medium for culturing human vascular endothelial cells is basal medium MCDB 131 or MCDB 107 containing isolated serum albumin, transferrin, hydrocortisone and epithelial growth factor.

Abstract: Disclosed is a coating compositions for culturing animal adhesive cells comprising a water-insoluble polymer dissolved in a lower alcohol or an aqueous lower alcohol which enable to enhance the adhesive ability and growth of the adhesive cells. Also disclosed is serum-free cell culturing method using culture vessels or carrier coated with the water-insoluble polymer having cell adhesive activity on at least a part of the surface which enable to not only culture but also subculture a variety of adhesive cells including vascular endothelial cell under serum-free condition.