Provided is an alloy having antiviral properties. This antiviral alloy contains 2.5-10.0 wt% of tin (Sn) and 0.01-1.0 wt% of gold (Au), wherein the remaining portion is composed of silver (Ag).
A61L 2/02 - Procédés ou appareils de désinfection ou de stérilisation de matériaux ou d'objets autres que les denrées alimentaires ou les lentilles de contactAccessoires à cet effet utilisant des phénomènes physiques
Provided are: a filter sheet that exhibits antibacterial action and antiviral action; and a mask equipped with said filter sheet. The mask 1 (1A) is provided with a mask body 2 for covering at least the nose and the mouth of a wearer's face, wherein: the mask body 2 is formed by laminating an inner face sheet 20, a filter sheet 21 for trapping microparticles, a filter sheet 10 obtained by stacking a silver thin film 12 having a thickness of 0.1-50 nm on a substrate 11 made of a non-woven cloth, and an outer face sheet 22 in this order from the wearer side; and the silver thin film 12 is laminated at least on the outer face sheet 22 side of the filter sheet 10.
A decorative sintered metal article and a process for producing the decorative sintered metal article, the metal article comprising: a patterned-member production step which comprises alternately disposing a copper paste which comprises one or more copper powders selected from copper and copper-alloy powders, an organic binder, and water and has a water content of 10-35 wt.% and a silver paste which comprises one or more silver powders selected from silver and silver-alloy powders, an organic binder, and water and has a water content of 10-35 wt.%, deforming at least the upper-surface arrangement of the alternately disposed copper paste and silver paste to thereby draw a pattern and form a patterned paste, and thereafter drying the patterned paste to produce a patterned member; a decorative-object formation step in which the patterned member thus produced is processed to form a decorative object; and a burned-object production step in which the decorative object is burned to obtain a burned decorative object.
METHOD FOR MANUFACTURING ORNAMENTAL METAL ARTICLE PROVIDED WITH CROSS-SHAPED WOOD-GRAIN METAL PATTERN AND ORNAMENTAL METAL ARTICLE PROVIDED WITH CROSS-SHAPED WOOD-GRAIN METAL PATTERN
Disclosed are a method for manufacturing an ornamental metal article with a cross-shaped wood-grain metal pattern and the ornamental metal article with the cross-shaped wood-grain metal pattern. The method includes: a plate forming process for generating copper plates and silver plates; a multi-layering and tightly adhering process wherein the copper plates and silver plates are superposed on each other and extended so as to be reduced in thickness by 10% or more, tightly adhering to each other; a cross-shaped pattern wood-grain metal plate forming process wherein the multi-layered plate, the resultant of the multi-layering and tightly adhering process, is twisted, and the twisted multi-layered plate is cut along the torsion axis, and thereafter the cut multi-layered plate is extended so that the cut surface thereof becomes a surface; a process for forming an ornament with the cross-shaped wood-grain metal pattern wherein the ornament is formed using the cross-shaped pattern wood-grain metal plate; an ornament drying process for drying; and a calcined object generation process for obtaining the calcined ornamental object by calcination.
METHOD FOR MANUFACTURING ORNAMENTAL METAL ARTICLE PROVIDED WITH WOOD-GRAIN METAL PATTERN AND ORNAMENTAL METAL ARTICLE PROVIDED WITH WOOD-GRAIN METAL PATTERN
Disclosed are a method for manufacturing an ornamental metal article provided with a wood-grain metal pattern made of calcined copper portions obtained by calcining a copper-containing plastic component and calcined silver portions obtained by calcining a silver-containing plastic component, and the ornamental metal article provided with the wood-grain metal pattern. The method comprises: a plate forming process for generating copper plates and silver plates; a multi-layering and tightly adhering process wherein the copper plates and the silver plates are alternately superposed on each other with water on the adhering surfaces and extended so as to reduce the thickness of the superposed plates by 10% or more, adhering tightly to each other; a wood-grain metal plate forming process wherein the surface of the multilayered plate, the resultant of the multi-layering and tightly adhering process, is shaved so as to expose at least a part of the plates, and the multilayered plate is extended so as to flatten the shaved surface thereof, forming the wood-grain metal pattern; a process for forming an ornament with the wood-grain metal pattern wherein the ornament is formed using the formed wood-grain metal plate; an ornament drying process for drying the ornament; and a calcined object generation process for obtaining the calcined ornamental object by calcining the ornament, the resultant of the ornament drying process.
Disclosed are a method for producing a decorative metallic article to be used in jewelry goods, ornaments, clothing accessories and so on, in which a silver alloy composition for sintering that comprises silver or a silver alloy is combined with another composition for sintering that comprises copper or a copper alloy, and a decorative metallic article. The aforesaid method for producing a decorative metallic article is characterized by comprising: a step for forming a shaped and fired copper part which comprises forming a shaped copper part from a plastic copper composition that contains a powder of at least one member selected from copper and a copper alloy together with an organic binder, and then firing the shaped copper part to give a shaped and fired copper part (3); and a step for forming a shaped and fired copper/silver article which comprises forming a decorative article (6) from the shaped and fired copper part (3) obtained above and a plastic silver composition that contains a powder of at least one member selected from silver and a silver alloy together with an organic binder, and then firing the decorative article (6) to give a fired decorative article (7).
B22F 7/06 - Fabrication de couches composites, de pièces ou d'objets à base de poudres métalliques, par frittage avec ou sans compactage de pièces ou objets composés de parties différentes, p. ex. pour former des outils à embouts rapportés
7.
METHOD FOR PRODUCING SINTERED COPPER ARTICLE FOR CRAFT OR DECORATIVE USE AND COPPER-CONTAINING PLASTIC COMPOSITION
Disclosed are a method for producing sintered copper article for craft or decorative use relating to copper or a copper alloy which can be fired in the atmosphere using a heating furnace commonly employed in the art, and a copper-containing plastic composition. Specifically disclosed is a method for producing sintered copper article for craft or decorative use, which comprise forming a shaped copper article from a copper-containing plastic composition that contains a powder of at least one member selected from copper and a copper alloy containing 50 wt% or more of copper together with an organic binder, and firing the shaped copper article to give a shaped and fired copper article, characterized in that said powder contained in said copper-containing plastic composition has an average grain size of 10 μm or less and the shaped and fired copper article is obtained by firing said shaped copper article in the atmosphere.
Disclosed are a method for manufacturing a decorative metal article provided with extremely fine and beautiful inlay-tinted patterns obtained by combining a silver alloy sintering composition of silver or silver alloy and a sintering composition of copper or copper alloy, which are used for jewelry, ornaments, accessories, or the like, and the decorative metal article. Specifically disclosed is a method for manufacturing a decorative metal article, which includes a body forming step for forming a body molding compact, a body drying step for drying the body molding compact, a dried surface groove forming step for providing grooves on the surface of the resultant dried body molding compact, a copper-silver molding compact forming step for embedding the other of plastic compositions in the grooves of the dried body molding compact for integration, a copper-silver molding compact drying step for drying the resultant copper-silver molding compact, a removing/polishing step for removing or polishing a part of the other of the plastic compositions, which is raised from the surface of one of the plastic compositions of the dried copper-silver molding compact, and a fired body manufacturing step for firing the removed or polished copper-silver molding compact to obtain a decoration fired body (49).
Disclosed are a method for manufacturing an inlay-tinted decorative metal article obtained by combining a silver alloy sintering composition of silver or silver alloy, and a sintering composition of copper or copper alloy, which are used for jewelry, ornaments, accessories, or the like, and the decorative metal article. Specifically disclosed is a method for manufacturing a decorative metal article, which includes a push-in molding compact forming step for forming a push-in molding compact, a push-in molding compact drying step for drying the push-in molding compact, a copper-silver molding compact forming step for molding a body molding compact by the other of plastic compositions, and pushing the dried push-in molding compact into the body molding compact for integration, a copper-silver molding compact drying step for drying the resultant copper-silver molding compact, a copper-silver molding compact polishing step for polishing so that the surface of one of the plastic compositions of the dried copper-silver molding compact and the surface of the other of the plastic compositions are integrated, and a fired body manufacturing step for firing the polished copper-silver molding compact to obtain a decoration fired body (57).
The purpose of the present invention is to provide a method for producing a decorative metallic article to be used in jewelry goods, ornaments, clothing accessories and so on, which has an intricate marbled pattern comprising a combination of a composition for sintering that comprises silver or a silver alloy with another composition for sintering that comprises copper or a copper alloy, and a decorative metallic article. For this purpose, disclosed is a decorative metallic article produced by a method comprising: a step for forming rod-shaped members which comprises shaping a copper-containing plastic composition, that contains a powder of at least one member selected from copper and a copper alloy together with an organic binder, and a silver-containing plastic composition, that contains a powder of at least one member selected from silver and a silver alloy together with an organic binder, respectively into rods to thereby give a rod-shaped copper member and a rod-shaped sliver member; a step for forming mixed rod-shaped member which comprises entwining and blending the rod-shaped copper member and the rod-shaped silver member, each obtained in the above step for forming rod-shaped members, to thereby give a mixed rod-shaped member; a step for producing decorative article which comprises flattening at least a part of said mixed rod-shaped member obtained in the above step for forming mixed rod-shaped member to thereby give a decorative article; and a step for producing fired member which comprises firing the thus obtained decorative article to give a fired decorative article.
Disclosed are a method for producing a decorative metallic article having a woodgrain metal (mokumegane) pattern, which is composed of a fired copper part formed by firing a copper-containing plastic composition and a fired silver part formed by firing a silver-containing plastic composition, and a decorative metallic article having a woodgrain metal pattern. Specifically disclosed is a method for producing a decorative metallic article having a woodgrain metal pattern, comprising: a plate-forming step for shaping each of a copper-containing plastic composition and a silver-containing plastic composition into a plate to give a copper plate and a silver plate; a laminating and bonding step for alternately laminating the copper plate and the silver plate on each other, then stretching the obtained multilayered plate in such a manner as to reduce the thickness thereof by 10% or more, and bonding the same; a decorative article-forming step for forming a copper-silver multilayered decorative article by using said multilayered plate; a copper-silver multilayered decorative article-drying step for drying said copper-silver multilayered decorative article; a woodgrain metal pattern-forming step for cutting or polishing the surface of the copper-silver multilayered decorative article thus dried to visualize a woodgrain metal pattern, and forming a notch; and a fired product-forming step for firing the decorative article thus notched to give a fired decorative article (69).
A composition for precious metal sintering that, by firing, yields a precious metal sinter for use in jewelry, ornaments, accessories, etc., especially that realizes not only production of a precious metal sinter even when the precious metal content per volume of the composition for precious metal sintering is reduced but also striking reduction of the weight of the precious metal sinter. Further, there are disclosed a process for producing the precious metal sinter and the precious metal sinter. This composition for precious metal sintering is characterized by consisting of a mixture of precious metal powder, hollow glass powder and organic binder solution.
A technique by which oxidation proceeding from a surface in a heating step in producing a thermoformed metallic object can be inexpensively and easily prevented without fail. A process for producing a thermoformed metallic object containing a metal which oxidizes upon heating in the air is provided. The process is characterized by comprising: a step in which a silver-particle-containing composition comprising silver particles and an organic binder is applied to an exposed surface of a work to be heat-treated; a step in which the coated work is heated in the air to thereby thermoform the work while inhibiting air from flowing by the action of the silver-particle-containing composition; and a step in which the sintered coating formed from the silver-particle-containing composition by the heating is at least partly removed from the thermoformed metallic object obtained after the atmospheric heating.
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