Slide fastener and method of manufacturing attachment having constituent members

Abstract

An object of the present invention is to provide, through plating, a slide fastener which has high decorativeness, and which does not have problems in terms of functionality or product quality such as corrosion resistance. Another object is to provide a method of manufacturing an attachment having constituent members. In a slide fastener in which a large number of elements are mounted on an edge of a pair of mutually facing slide fastener tapes, each of the elements has a facing surface where elements face one another in a longitudinal direction of the slide fastener tapes, and a surface other than the facing surface, a coating is formed through electroless plating on the facing surface, and a coating is formed through electrolytic plating on the surface other than the facing surface. The coating on the surface other than the facing surface is made to be a single-layer or multi-layer coating selected from Sn, Cu—Sn alloy, Cu—Sn—Zn alloy, Rh, Pd, and Cu plating, and the coating on the facing surface is Sn plating.

What is claimed is:  
     
         1 . A slide fastener comprising: 
 a pair of mutually facing slide fastener tapes;    a plurality of elements being mounted on an edge of each of the slide fastener tapes, each of the elements having a facing surface where the elements face one another in a longitudinal direction of said slide fastener tapes and having a surface other than the facing surface;    a coating formed on said facing surface through an electroless plating;    a coating formed on said surface other than the facing surface through an electrolytic plating; and    a slider for engaging or separating said elements.    
     
     
         2 . A slide fastener according to  claim 1 , wherein a thickness of the coating on said surface other than a facing surface is 0.005 to 5 μm, and the thickness of the coating on said facing surface is 0.005 to 0.2 μm.  
     
     
         3 . A slide fastener according to  claim 1 , wherein the coating on said surface other than the facing surface is a single-layer or multi-layer coating selected from Sn, Cu—Sn alloy, Cu—Sn—Zn alloy, Rh, Pd, and Cu plating, and the coating on said facing surface is Sn plating.  
     
     
         4 . A slide fastener according to  claim 1 , further comprising a stop mounted at an end of each of the slide fastener tapes in a longitudinal direction thereof, said stop having a coating formed through the electroless plating on a surface thereof perpendicular to said longitudinal direction, and having a coating formed through the electrolytic plating on a surface thereof parallel to said longitudinal direction.  
     
     
         5 . A slide fastener according to  claim 1 , wherein a base material thereof is one selected from red brass, brass, and an alloy represented by an undermentioned general formula:  
       Cu a Zn b Mn c M d X e    
       where M is at least one element selected from Al and Sn, X is at least one element selected from Si, Ti and Cr, and regarding a, b, c, d and e, in mass %, 0≦b≦22, 7≦c≦20, 0≦d≦5, 0≦e≦0.3, and a is a remainder, with unavoidable impurities being contained.  
     
     
         6 . A method of manufacturing an attachment having a plurality of constituent members comprising: 
 electrolytic plating a surface of an elongated body made of a metal or an alloy;    cutting the elongated body into a plurality of constituent members;    mounting the constituent members on an attachment; and    electroless plating the constituent members on the attachment.    
     
     
         7 . A method of manufacturing an attachment having a plurality of constituent members according to  claim 6 , wherein said attachment having a plurality of constituent members is a slide fastener or a slide fastener chain, said attachment is a pair of slide fastener tapes, and the constituent members are a plurality of elements and/or stops.  
     
     
         8 . A method of manufacturing an attachment having a plurality of constituent members according to  claim 6 , wherein a thickness of a coating formed through the electrolytic plating is 0.005 to 5 μm, and a thickness of a coating formed through the electroless plating is 0.005 to 0.2 μm.  
     
     
         9 . A method of manufacturing an attachment having a plurality of constituent members according to  claim 6 , wherein a single-layer or multi-layer coating selected from Sn, Cu—Sn alloys, Cu—Sn—Zn alloys, Rh, Pd, and Cu is formed through the electrolytic plating, and a coating of Sn is formed through the electroless plating.