WO2023013054A1

WO2023013054A1 - Production method for fastener stringer, fastener chain, and slide fastener, and electroplating apparatus

Info

Publication number: WO2023013054A1
Application number: PCT/JP2021/029394
Authority: WO
Inventors: 侑己瓜田; 誠佐々木; 卓也阿部; 隆志中村; 雅之飯森; 諒佑竹田
Original assignee: Ykk株式会社
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2023-02-09
Also published as: TW202307277A; JPWO2023013054A1; JP7600407B2; CN117836472A; TWI787066B

Abstract

A production method for a fastener chain (1) or fastener stringers (2a, 2b) comprising: a step for applying a voltage between at least one anode (20) and at least one cathode (10) at least partially immersed in an electrolyte solution in a plating bath (30); a step for generating an alternating magnetic field in the electrolyte solution when or during periods in which voltage is applied between at least one cathode (10) and at least one anode (20); a step for controlling the position and orientation of the fastener chain (1) or fastener stringers (2a, 2b) so that at least the metal elements (4a, 4b) of the fastener chain (1) or fastener stringers (2a, 2b) are disposed in the space in which the alternating magnetic field is generated; and a step in which a plurality of magnetic media (9) are moved in response to the alternating magnetic field, the metal elements (4a, 4b) are electrically connected to the cathode (10) via the plurality of magnetic media (9), and the plurality of magnetic media (9) are made to impact the plating film that is developing on the metal elements (4a, 4b).

Description

Method for manufacturing fastener stringer, fastener chain and slide fastener, and electroplating device

The present disclosure relates to methods for manufacturing fastener stringers, fastener chains and slide fasteners, and electroplating equipment.

Patent Documents 1 and 2 disclose electroplating metal elements of fastener chains. As shown in FIGS. 3, 4, 5, etc. of Patent Document 1, a conductive medium 111 is accommodated in an insulating container 110, and a fastener chain 7 is passed through it. The metal element 3 of the fastener chain 7 and the plate-like cathode 118 are electrically connected via the conductive medium 111 . The insulating container 110 is provided with an opening 116 to ensure contact between the metal element 3 and the plating solution. The anode 119 is arranged to face the fastener chain 7 with the opening 116 of the insulating container 110 interposed therebetween. A plating film is formed on the metal element 3 mainly on the side facing the anode 119 . A similar technique is also disclosed in Patent Document 2 (see FIGS. 2, 3, etc. of Patent Document 2).

Patent Documents 3 and 4 disclose that a substrate such as a button is put into a plating tank and electroplated. In particular, a special plating layer is formed by using a permanent magnet to flow the magnetic media together with the base material such as the button, and plating while the magnetic media collides with the base material such as the button. is disclosed (see, for example, FIG. 20 of Patent Document 3 and FIG. 20 of Patent Document 4). Patent Documents 3 and 4 are plating methods intended for small items such as buttons and sliders, and are not intended for long fastener chains in which elements are attached to fastener tapes.

Patent Document 5 discloses a technique in which a fastener chain is passed between an anode 23 and a cathode 24, and the fastener element on the anode 23 side is given a first metallic color, and the fastener element on the cathode 24 side is given a second metallic color. disclosed. In order to obtain these two metallic colors, the fastener element is arranged away from the cathode (see FIG. 1, paragraph 0012 of Patent Document 5).

WO2018/109983 WO2018/109998 WO2018/189916 WO2018/190202 WO2016/075828

　There is significance in forming a plating film on the metal elements of the fastener chain using a new method that is different from existing methods. In addition, when a fastener stringer or fastener chain is put into the plating tank as a substitute for the base material (simply, button shell) of Patent Documents 3 and 4, the agitation cannot be performed well, and the fastener tape prevents the metal element from and cathode electrical connection may be disturbed.

A manufacturing method according to an aspect of the present disclosure is a method for manufacturing a fastener chain or fastener stringer in which a plating film is formed on a metal element, and includes one or more fasteners at least partially immersed in an electrolytic solution in a plating bath. applying a voltage between the cathode and the one or more anodes; generating an alternating magnetic field in the electrolyte when or during the time the voltage is applied between the one or more cathodes and the one or more anodes; controlling the position and orientation of the fastener chain or fastener stringer so that at least the metallic elements of the fastener chain or fastener stringer are disposed in the space in which the alternating magnetic field is generated; and moving the plurality of magnetic media in response to the alternating magnetic field. and electrically connecting the metal elements of the fastener chain or fastener stringer to the cathode through a plurality of magnetic media, and colliding the plurality of magnetic media against the plated film growing on the metal elements. . The position and orientation of the fastener chain or fastener stringer may be controlled as a result of the fastener chain or fastener stringer traveling continuously or intermittently in a predetermined travel path, although this need not be the case. The fastener chain manufacturing method can also be understood as an electroplating method for forming a plating film on the metal elements of the fastener chain.

A method for manufacturing a slide fastener according to another aspect of the present disclosure includes steps of cutting the fastener chain obtained by the above-described manufacturing method, and attaching a slider to the short fastener chain obtained by the cutting to form a short fastener. It includes enabling the engagement and disengagement of the metallic elements of a pair of fastener stringers of the chain.

An electroplating apparatus according to yet another aspect of the present disclosure is an electroplating apparatus for producing a plating film on metallic elements of fastener chains or fastener stringers, wherein one or more cathodes and one or more anodes are at least partially A plating bath for storing an electrolytic solution to be immersed in the plating bath, an alternating magnetic field generating section for generating an alternating magnetic field in the electrolytic solution of the plating bath, and a space where at least the metal element of the fastener chain or fastener stringer generates an alternating magnetic field. one or more supports for fastener chains or fastener stringers arranged to be placed in the The cathode allows a plurality of magnetic media to move in response to an alternating magnetic field between the cathode and the metallic elements of a fastener chain or fastener stringer supported by one or more supports, and through the plurality of magnetic media. is electrically connectable to the metal element.

In some embodiments, the position and orientation of the fastener chain or fastener stringer is controlled such that the longitudinal direction of the fastener chain or fastener stringer is along a predetermined direction with alternating different magnetic poles for generating an alternating magnetic field. . One or more supports may be provided for this purpose.

In some embodiments, (i) the major faces of the metallic elements are substantially perpendicular to the magnetic axis with respect to the magnetic poles, and/or (ii) the fastener chains or stringers are aligned with the magnetic poles in their width direction. The position and orientation of the fastener chains or fastener stringers are controlled so that they face each other in a flat position.

In some embodiments, the fastener chain runway includes one or more helical runways and/or the one or more cathodes include one or more helical cathodes.

In some embodiments, generating an alternating magnetic field in the electrolyte includes rotating one or more magnetic rotating parts with different magnetic poles alternating in the direction of rotation.

In some embodiments, the position and orientation of the fastener chain or fastener stringer is controlled as a result of running the fastener chain or fastener stringer (eg, spirally) around the magnetic rotating portion.

In some embodiments, the magnetic rotating portion is housed in a magnetically permeable housing that is rotatably sealed.

In some embodiments, the step of generating an alternating magnetic field in the electrolyte comprises rotating each of the different magnetic rotators provided as one or more magnetic rotators, wherein the fastener chain is rotated across the different magnetic rotators. The position and orientation of the fastener chain or fastener stringer is controlled as a result of running the .

In some embodiments, running the fastener chain over the different magnetic rotating parts includes running the fastener chain in opposite directions in a helical track around the different magnetic rotating parts.

In some embodiments, the position and orientation of the fastener chain or fastener stringer is controlled as a result of the fastener chain running along the direction of rotation of the magnetic rotating portion.

According to one aspect of the present disclosure, a plating film can be formed on the metal element of the fastener chain by a new method different from existing methods.

1 is a schematic diagram of a method of electroplating a metal element of a fastener chain according to one aspect of the present disclosure; FIG. It is a schematic diagram which shows an example of a fastener chain. FIG. 4 is a schematic cross-sectional view showing a state in which a plating film is formed on the base material of the metal element; It is a time chart regarding an electroplating method. 4 is another time chart relating to the electroplating method; 1 is a schematic diagram of an electroplating apparatus according to one aspect of the present disclosure; FIG. 1 is a schematic side view of a magnetic rotating portion rotatably received in a magnetically permeable housing of an electroplating apparatus; FIG. FIG. 3 is a schematic side view showing an arrangement example of permanent magnets in a magnetic rotating section; FIG. 4 is a schematic side view of a frame for mounting an anode outside the magnetically permeable housing of the electroplating apparatus; FIG. 4A is a schematic diagram for explaining the behavior and action of a plurality of magnetic media, where (a) shows a state in which the magnetic media are placed in a magnetic field formed by a magnetic flux directed radially outward from the north pole of a permanent magnet; , (b) show the magnetic media placed in the magnetic field formed by the magnetic flux directed radially inward toward the S pole of the permanent magnet. FIG. 4 is a schematic top view showing that the fastener chain is turned upside down between the spiral running paths. 1 is a schematic diagram showing an electroplating apparatus provided with four helical tracks; FIG. FIG. 13 is a schematic diagram showing an electroplating apparatus according to another example provided with four spiral running paths, and the direction of rotation of the magnetic rotating portion is different from that in FIG. 12 ; FIG. 4 is a schematic diagram of an electroplating apparatus according to another aspect of the present disclosure; FIG. 4A is a schematic diagram for explaining the behavior and action of a plurality of magnetic media in an electroplating apparatus according to another aspect of the present disclosure; (b) shows a state in which the lower cathode is arranged between the bottom surface of the metallic element and the south pole, and (b) shows a state in which the upper cathode is arranged between the top surface of the metallic element and the south pole. 4, showing the bottom cathode positioned between the bottom surface of the metallic element and the north pole. FIG. 4 is a schematic diagram of an electroplating apparatus according to another aspect of the present disclosure; It is a table|surface which shows the evaluation result regarding washing processing and dyeing processing.

Various embodiments and features will be described below with reference to the drawings. A person skilled in the art can combine each embodiment and/or each feature without undue explanation, and can also understand the synergistic effect of this combination. Redundant explanations among the embodiments will be omitted in principle. The referenced drawings are primarily for the purpose of describing the invention and are simplified for drawing convenience. Each feature is effective not only for the electroplating apparatus and fastener chain manufacturing method disclosed herein, but also for various other electroplating apparatuses and fastener chain manufacturing methods not disclosed herein. It is understood as a common universal feature.

A method for manufacturing a fastener chain according to the present disclosure includes four steps S1 to S4 schematically shown in FIG. In step S1, a voltage is applied between a cathode and an anode that are at least partially immersed in the electrolyte of the plating bath. In step S2, an alternating magnetic field is generated in the electrolyte when or during the time a voltage is applied between the cathode and the anode. In step S3, the position and orientation of the fastener chain are controlled such that at least the metallic elements of the fastener chain are arranged in the space in which the alternating magnetic field is generated. For example, the fastener chain is caused to travel continuously or intermittently along a predetermined path so that the fastener chain passes through an alternating magnetic field, thereby controlling the position and orientation of the fastener chain. In step S4, a plurality of magnetic media move according to the alternating magnetic field, the metal elements of the fastener chain are electrically connected to the cathode through the plurality of magnetic media, and the plating film growing on the metal elements A plurality of magnetic media collide with each other. The step S4 can be achieved by performing the steps S1 and S2 while the magnetic media are put into the plating bath. When step S3 is performed as a result of running of the fastener chain, it can be performed so as to overlap with steps S1, S2, and S4 on the time axis, but this is not necessarily the case.

According to the manufacturing method described above, the growth of the plating film and the collision of the magnetic media against the plating film occur simultaneously, which promotes the formation of a plating film of sufficient quality (for example, sufficient processing resistance). The position and orientation of the fastener chain is controlled to prevent the fastener tape from interfering with the electrical connection between the metallic element and the cathode.

In order to increase the utilization efficiency of the alternating magnetic field, it is preferable to control the position and orientation of the fastener chain 1 so that the longitudinal direction of the fastener chain 1 is along a predetermined direction in which different magnetic poles are alternately arranged for generating the alternating magnetic field. Furthermore, the fastener chain 1 is arranged so that the main surface of the metal element is substantially perpendicular to the magnetic axis of the magnetic pole and/or so that the fastener chain 1 faces the magnetic pole in a flat posture in its width direction. It is preferable to control the position and orientation of . This promotes formation of a plated film with uniform quality and/or thickness. The flat posture means that the fastener chain 1 is not greatly bent in its width direction, and does not mean that both fastener tapes of the fastener chain 1 are flat enough to be arranged on the same plane. It also includes the occurrence of local bending and waviness in the fastener tape. Of course, the bent state in which the metal elements of the fastener chain 1 are covered with the fastener tape is not included in the above-described flat posture. Substantially orthogonal, with respect to the orientation of the metallic elements, means an angle within the range of 80° to 100°.

Electroplating can be performed efficiently if the position and orientation of the fastener chain 1 are controlled as a result of the fastener chain 1 running continuously or intermittently on the predetermined running path 80 . The predetermined travel path 80 may be defined by a plurality of support members 78, but this is not necessarily the case. The process of controlling the position and orientation of the fastener chain 1 can also be read as a process of continuously or intermittently running the fastener chain along a predetermined running path so that the fastener chain passes through the alternating magnetic field.

As an alternative to the fastener chain, the above process can be performed on (one side) fastener stringer. In this specification, the method of manufacturing the fastener chain will be exclusively described, but the method of manufacturing (one side) of the fastener stringer can also be similarly applied, and redundant description will be omitted.

The magnetic media moves in response to an alternating magnetic field and has sufficient conductivity to ensure electrical connection (that is, short circuit) between the cathode 10 and the

metal elements

4a and 4b. Various shapes of magnetic media can be used, and in some cases non-spherical media are used. For example, pin media such as cylinders or prisms are used. The pin media can be stainless steel pins with a diameter or maximum width on the order of 0.2 mm to 1.0 mm and a length of 3 mm to 15 mm. Ferromagnetic materials other than stainless steel can also be used.

The pin media rotates according to the alternating magnetic field (when the direction of the magnetic field changes, the pin media changes from the first posture corresponding to the direction of the magnetic field before the change to the second posture corresponding to the direction of the magnetic field after the change). do). Also, the pin media are displaced by being entrained by the magnetic poles. In addition to such pin media behavior, pin media collide with each other, and pin media collide with fastener chains (especially metal elements). Although the individual behavior of the pin media is chaotic, the collection of pin media maintains an electrical connection between the cathode and the metallic element continuously or intermittently rather than accidentally. Here, collision means that the rotational momentum and translational momentum obtained from the alternating magnetic field when the magnetic media are separated from the metal element (the magnetic media need not be separated from each other) are applied to the metal element. In the existing plating technology described in Patent Document 1 and Patent Document 2, when the electrode and the object to be plated are in constant contact, the electrode and the object to be plated move relative to each other. They are different.

By appropriately setting the change speed of the magnetic field, it is possible to optimize the impact force of the magnetic media on the plated film. The collision of the magnetic media may flatten the plated film or scrape a part of its surface, resulting in a delay in the growth of the plated film. However, the collision of the magnetic media with the plated film can improve the quality of the plated film (for example, processing resistance or adhesion to the substrate). When the adhesion to the base material is enhanced, the collision can be said to mean collision with momentum that affects the change in the crystal structure of the plating layer.

As shown in FIG. 2, the fastener chain 1 is a long object that extends in a predetermined direction with a predetermined width, and has a pair of

fastener stringers

2a and 2b. Each

fastener stringer

2a, 2b has a fastener tape 3a, 3b and

metallic elements

4a, 4b attached to the side edges of the fastener tape 3a, 3b. A fastener chain 1 is formed by engaging

metal elements

4a and 4b of a pair of

fastener stringers

2a and 2b. The

metal elements

4a, 4b of the pair of

fastener stringers

2a, 2b are engageable and disengageable in the same way using sliders (not shown).

The metal elements 4a are attached to the side edges of the fastener tape 3a at predetermined intervals, and therefore are not electrically connected to each other on the fastener tape 3a. Similarly, the metallic elements 4b are attached to the side edges of the fastener tape 3b at predetermined intervals and are therefore not electrically connected to each other on the fastener tape 3b. When the metallic element 4a and the metallic element 4b are engaged, they can be in contact and have a common electrical potential. The contact state between the metal element 4a and the metal element 4b may change due to collision of magnetic media or the like while the fastener chain 1 is running.

After electroplating the

metal elements

4a and 4b, the fastener chain 1 is made into a short fastener chain by a cutting process, a slider is attached to the short fastener chain, and then, if necessary, the fastener chain is cut. A fastener is attached. A short fastener chain to which a slider (or a fastener in addition to this) is attached is generally called a slide fastener. The fastener chain 1 is not attached with a slider, which is a constituent part of the slide fastener as the final product, and can be efficiently and smoothly conveyed downstream.

The fastener tapes 3a, 3b are flexible belts made of woven fabric, knitted fabric, or a mixture thereof. The fastener tapes 3a and 3b have a pair of main surfaces, a surface visible from the front side of the fastener chain 1 and a back surface visible from the back side of the fastener chain 1, and have a thickness defined by the pair of main surfaces. The

metal elements

4a, 4b are attached to the core cords of the fastener tapes 3a, 3b through their plastic deformation. The

metal elements

4a, 4b have a pair of legs attached to the side edges (typically core cords) of the fastener tapes 3a, 3b and a head connecting the pair of legs. In some cases, with respect to a pair of side surfaces of the head portion intersecting the longitudinal direction of the fastener chain 1, one side surface is provided with an engaging projection and the other side surface is provided with an engaging recess. Alternatively, each of the aforementioned pair of side surfaces is provided with an engaging projection. The

metal elements

4a and 4b have a pair of main surfaces, a front surface visible from the front side of the fastener chain 1 and a rear surface visible from the back side of the fastener chain 1, and have a thickness defined by the pair of main surfaces.

After the electroplating process of the present disclosure, the base material 4g of the

metallic elements

4a, 4b is coated with a plating film 4h, as shown in FIG. FIG. 3 is a conceptual diagram showing how the base material 4g of the

metal elements

4a and 4b is coated with the plating film 4h.

A case where the base material 4g of the metal element is made of brass (CuZn) and tin (Sn) is used as the anode will be described as an example. According to the electroplating of the present disclosure, the plated film 4h also contains the metal elements (Cu, Zn) of the substrate 4g in addition to tin (Sn). The ratio of Cu and Zn (referred to as first plating film metal elements) in the plating film 4h decreases continuously as the plating film 4h is separated from the substrate 4g in the thickness direction. The ratio of Sn corresponding to the anode (referred to as a second plating film metal element) decreases in the thickness direction of the plating film 4h as it approaches the substrate 4g. The ratio of the second plating film metal element is maximum on the top surface of the plating film 4h, and the ratio of the first plating film metal element is minimum or zero on the top surface of the plating film 4h. Needless to say, it is also possible to form one or more additional plating films on the plating film 4h. Various combinations are possible with respect to the metallic elements of the substrate 4g and the metallic elements of the anode, and it should be understood that the ones mentioned here are only non-limiting examples.

The order of the above steps S1 to S4 will be supplementarily explained. Step S1 and step S2 do not have to be performed completely synchronously, and there may be a time difference between the start timing and the end timing (see FIG. 4). Moreover, step S1 and step S2 may be performed intermittently (see FIG. 5). When step S3 is performed as a result of the running of the fastener chain, it is performed overlapping steps S1 and S2 along the time axis (see FIG. 4), or it is performed without overlapping steps S1 and S2 along the time axis. (complementary) (see FIG. 5). Step S4 is superimposed on steps S1 and S2 along the time axis.

In FIG. 4, after time t2, the metal element is supplied with electrons from the cathode, and metal ions derived from the anode are continuously deposited on the metal element. In addition, the magnetic media continuously collide with the plated film that grows with the deposition of metal ions. In FIG. 5, a plated film is formed on the metal element of the stopped fastener chain during the period between time t1 and time t2, and the magnetic media continuously collides with the plated film. During the period between time t2 and time t3, the fastener chain is run for a predetermined distance. This is repeated to form a desired plating film on the metal element.

The method and apparatus for manufacturing (electroplating) a fastener chain according to the present disclosure will be described in detail below. It should be noted that various electroplating apparatuses can be used for the methods of the present disclosure, and the electroplating apparatus disclosed in this disclosure is merely one example. As shown in FIG. 6 , the electroplating apparatus 100 has a plating bath 30 , a transport mechanism 40 , an alternating magnetic field generator 50 , and a running path 80 for the fastener chain 1 . The fastener chain 1 enters the plating bath 30 from outside the plating bath 30 via the

rollers

41 and 42 of the transport mechanism 40, and passes from the inside of the plating bath 30 to the outside of the plating bath 30 via the

rollers

43 and 44 of the transport mechanism 40. exit. A specific method for conveying the fastener chain 1 is arbitrary, and for example, a take-up roller, a gripper, or a roller pair (a combination of a drive roller and a pressure roller) can be used for the conveyance. The fastener chain 1 travels along the running path 80 in the plating bath 30 and includes a immersed portion immersed in the electrolytic solution 35 of the plating bath 30 and other portions.

The plating bath 30 stores an electrolytic solution 35 in which one or more cathodes 10 and one or more anodes 20 are immersed. Plating bath 30 is an insulating vessel having a bottom plate 31 and side plates 32, optionally closable by a lid. The electrolytic solution 35 in the plating tank 30 is, for example, a cyanide plating solution, which is circulated between the external sub tanks. From the viewpoint of reducing the burden on the environment, it is preferable to use a plating solution that does not contain specific harmful substances such as cyanide, chromium, and selenium. A cathode 10 and an anode 20 are connected to a DC power supply E1, and a voltage is applied between them. The voltage application state can be controlled by turning on/off the switch SW. Anode 20 can be a soluble or insoluble anode. The metal element of the anode 20 is appropriately determined according to the target metal element of the plating film. The cathode 10 is provided in the electrolyte 35 away from the anode 20 in order to supply electrons to the

metal elements

4a, 4b of the fastener chain 1 (to bring the

metal elements

4a, 4b to a cathodic potential).

The alternating magnetic field generator 50 generates an alternating magnetic field in the electrolytic solution 35 of the plating bath 30 . An alternating magnetic field means a magnetic field that changes in magnitude and direction with time. The running path 80 of the fastener chain 1 is provided so that the fastener chain 1 is arranged in the alternating magnetic field generated by the alternating magnetic field generating section 50 . When the generation of the alternating magnetic field and the running of the fastener chain 1 are performed at the same time or during the same period, the

metal elements

4 a and 4 b of the fastener chain 1 pass through the alternating magnetic field generated by the alternating magnetic field generator 50 .

In this electroplating apparatus 100, a plurality of magnetic media move (for example, (rotation) and electrically connectable to the

metal elements

4a and 4b via a plurality of magnetic media. In other words, (i) between the

metal elements

4a, 4b of the fastener chain 1 supported by the support member 78 and the cathode 10, a space is provided in which a plurality of magnetic media move according to the alternating magnetic field, and (ii) ) In this space, the

metal elements

4a and 4b are electrically connected to the cathode 10 via a plurality of magnetic media, and the plurality of magnetic media are provided for the plated film growing on the

metal elements

4a and 4b. It is set so that it can collide.

According to the above configuration, it is possible to ensure that both the growth of the plating film on the

metal elements

4a and 4b and the collision of the magnetic media against the plating film occur simultaneously. This promotes formation of a plating film of sufficient quality (for example, processing resistance). Further, when the fastener chain is caused to run continuously or intermittently on the running path 80 defined by the support member 78, the electroplating process can be performed efficiently.

The support member 78 extends along a predetermined direction in which different magnetic poles are alternately arranged for generating an alternating magnetic field (for example, the circumferential direction and/or the rotational direction of the magnetic rotating portion 60 described later) in the longitudinal direction of the fastener chain 1 and , to control the position and orientation of the fastener chain 1 so that the fastener chain 1 faces the magnetic poles in a flat posture in its width direction. This promotes formation of a plated film with uniform quality and/or thickness.

The alternating magnetic field generating section 50 includes a motor 61 and a magnetic rotating section 60 rotated by the motor 61 . Motor 61 is, for example, a DC or AC motor. In the magnetic rotating portion 60, different magnetic poles (ie, N poles and S poles) are alternately arranged in the direction of rotation. Permanent magnets, electromagnets, or combinations thereof can be used as the magnetic poles. In the case shown in FIG. 7, permanent magnets are used for the magnetic poles. The magnetic rotating section 60 has a rotating body 63 rotatably fixed to a rotating shaft 62 of a motor 61 and a plurality of permanent magnets 64 provided on the outer surface of the rotating body 63 . The rotating body 63 is, for example, a hollow cylindrical member made of stainless steel. Permanent magnets 64 may be rare earth magnets such as neodymium magnets, although other types are also possible. It is not essential to provide one motor 61 corresponding to one magnetic rotating portion 60 . The output of the motor 61 can also be supplied to multiple magnetic rotating parts 60 via a suitable drive train. The rotating shaft 62 of the motor 61 can be fixed to the opening of the bottom plate 31 of the plating tank 30 via waterproof bearings.

The plurality of permanent magnets 64 are arranged so that the S poles and the N poles are alternately arranged in the rotation direction of the magnetic rotating portion 60 (see FIG. 8). When the magnetic rotating portion 60 rotates in response to the operation of the motor 61 , the magnetic rotating portion 60 is alternately switched between the S pole and the N pole when viewed from a predetermined radially outer position of the magnetic rotating portion 60 . A magnetic medium (e.g., a pin medium) at a predetermined position radially outside the magnetic rotating section 60 rotates according to a change in the magnetic pole (closest to the magnetic medium) and flows in the rotating direction of the magnetic rotating section 60. do. The rotational speed of the magnetic rotating portion 60 is, for example, 100 to 4,000 rpm.

As shown in FIG. 8, on the outer surface of the magnetic rotating portion 60, N pole placement zones Z1, Z3, Z5 in which permanent magnets 64 with N poles facing outward and permanent magnets 64 with S poles facing outward are arranged. The arranged S pole arrangement zones Z2 and Z4 can be provided alternately in the rotation direction of the magnetic rotating part 60. FIG. In FIG. 8, the north pole zones Z1, Z3, Z5 and the south pole zones Z2, Z4 extend straight up and down in parallel with the rotation axis of the magnetic rotating part 60, but the configuration is not limited to this. In some cases, the north pole placement zones Z1, Z3, Z5 and the south pole placement zones Z2, Z4 extend obliquely up and down non-parallel to the rotation axis of the magnetic rotating part 60, taking into consideration the sedimentation of the magnetic media due to gravity. , or extend in a zigzag up and down direction non-parallel to the rotation axis of the magnetic rotating portion 60 .

The electroplating apparatus 100 further has a magnetically permeable housing 70, in which the magnetic rotating part 60 is rotatably and hermetically accommodated. The magnetically permeable housing 70 transmits the magnetic flux directed from the N pole to the S pole of the permanent magnet 64 of the magnetic rotating part 60 inside thereof, so that a magnetic field can be formed outside the magnetically permeable housing 70 . The magnetically permeable housing 70 does not rotate with the magnetic rotating part 60 under the operation of the motor 61 and remains stationary in place, e.g. are connected via By providing the magnetically permeable housing 70, the magnetic rotating part 60 can be protected from the electrolyte 35 and/or the rotational resistance of the magnetic rotating part 60 can be reduced. The magnetically permeable housing 70 is made of resin such as polypropylene, acryl, vinyl chloride, or the like.

A plurality of support members 78 are provided on the outer surface of the magnetically permeable housing 70 as one or more supports for supporting the fastener chain 1 . As a result, the position and posture of the fastener chain 1 are controlled and the running path 80 is defined. Preferably, the fastener chain 1 is supported in a flat posture by a support (for example, a support member 78). The fastener chain 1 can run in the circumferential direction around the magnetic rotating portion 60 , more specifically, at a radially outer position of the rotating shaft 62 of the magnetic rotating portion 60 . Although the magnetic flux density decreases with increasing distance from the magnetic rotating portion 60 in the radial direction, the fastener chain 1 can run in the vicinity of the magnetic rotating portion 60 by providing the support member 78 in the magnetically permeable housing 70 . Between the magnetically permeable housing 70 and the fastener chain 1, the magnetic media can move greatly according to the alternating magnetic field, and the magnetic media can strongly collide with the plating film. In some cases, a plurality of support members 78 are attached to the outer surface of magnetically permeable housing 70 to define a helical runway 80 for fastener chain 1 . Making the running path 80 spiral makes it possible to avoid an increase in the size of the electroplating apparatus 100 .

Each support member 78 is an L-shaped member, more specifically, a first rod portion 78a extending radially outward from the rotation axis 62 of the magnetic rotating portion 60 and spaced apart from the outer surface of the magnetically permeable housing 70 by a predetermined distance. It has a second rod portion 78b extending upwardly. The first rod portion 78a prevents the fastener chain 1 from settling in the electrolytic solution 35 due to gravity. The second rod portion 78b prevents the fastener chain 1 from falling away from the outer surface of the magnetically permeable housing 70 due to gravity, magnetic media, water flow, or the like. Support member 78 may be secured to the perimeter of magnetically permeable housing 70 in any manner, such as by screwing or gluing.

A cathode 10 can be provided on the outer surface of the magnetically permeable housing 70 . Cathode 10 is provided so as to extend along the running path of fastener chain 1 . This is expected to improve the electrical connection of the

metal elements

4a and 4b to the cathode 10 via the magnetic media. In some cases, the cathode 10 is provided spirally around the permeable housing 70 corresponding to the spiral running path 80 of the fastener chain 1 . Additionally or alternatively, the cathode 10 is provided at a position where the

metal elements

4 a and 4 b of the fastener chain 1 running on the running path 80 face the cathode 10 . The permanent magnet 64 , the magnetically permeable housing 70 , the cathode 10 , the magnetic media, and the

metal elements

4 a and 4 b are arranged coaxially in the radial direction with respect to the rotation axis of the magnetic rotating portion 60 .

When the cathode 10 is provided on the outer surface of the magnetically permeable housing 70 , an induced electromotive force is generated in the cathode 10 by the rotation of the magnetic rotating part 60 and an induced current flows through the cathode 10 . To reduce this effect, the cathode 10 is linear (rather than cylindrical) on the outer surface of the magnetically permeable housing 70 . The magnetic flux interlinking with the cathode 10 is reduced, and the induced electromotive force and induced current can be suppressed. The spiral cathode 10 can be constructed by spirally winding the linear cathode 10 around the outer surface of the magnetically permeable housing 70 . The linear cathode 10 may be provided on the outer surface of the magnetically permeable housing 70 in a manner other than spiral. Cathode 10 may be secured to the outer surface of magnetically permeable housing 70 by means of screws, adhesives, snap fit, or the like.

When the cathode 10 is provided linearly or spirally, the length of the cathode 10 becomes long. In order to stabilize the cathode potential, in one magnetically permeable housing 70, the cathode 10 can be provided with a plurality of contacts with the DC power supply E1, or the cathode 10 can be divided to provide individual contacts with the DC power supply E1. can be provided.

A frame 72 can be used to arrange the anode 20 in the vicinity of the running path 80 of the fastener chain 1 (see FIG. 9). A plurality of anodes 20 can be arranged at different locations along the running path 80 of the fastener chain 1 by directly or indirectly attaching the plurality of anodes 20 to the frame 72 via a basket or the like. As a result, the uneven concentration of metal ions along the running path 80 of the fastener chain 1 can be reduced. For example, a mesh basket is attached to the frame 72, and a metal plate (functioning as the anode 20) is placed in the basket.

The frame 72 is located radially outside the magnetically permeable housing 70 with respect to the rotating shaft 62 of the magnetic rotating portion 60 . The frame 72 is a cylindrical net member having horizontal members 73 spaced apart in the vertical direction and vertical members 74 connecting the horizontal members 73 together in the vertical direction. The frame 72 is constructed so as not to interfere with the running path 80 of the fastener chain 1. - 特許庁Metal ions eluted from the anode 20 can reach the

metal elements

4 a and 4 b of the fastener chain 1 on the running path 80 through the mesh of the frame 72 . As will be apparent to those skilled in the art, the anode 20 can also be placed near the running path 80 of the fastener chain 1 without using the frame 72 .

The role of the magnetic media will be further explained with reference to FIG. 10(a), the north pole arrangement zone of the magnetic rotating part 60 is located inside a predetermined position on the outer circumference of the magnetically permeable housing 70. In FIG. 10(b), at a predetermined position on the outer periphery of the magnetically permeable housing 70, the south pole arrangement zone of the magnetic rotating part 60 is positioned inside thereof. An appropriate amount of the magnetic media 9 exists between the cathode 10 and the

metal elements

4a and 4b in either state of FIGS. 10(a) and 10(b). The magnetic flux is indicated by dashed lines in FIGS. 10(a) and 10(b).

Each magnetic medium 9 rotates and displaces in the process of changing the direction of the magnetic flux from FIG. 10(a) to FIG. 10(b). The

metal elements

4a and 4b can be electrically connected to the cathode 10 through a plurality of media before, after, or in the entire process regardless of changes in the orientation and displacement of each magnetic medium 9. FIG. Some magnetic media 9 collide with the growing plating film on the

metal elements

4a, 4b as they rotate. In the fastener chain 1, the

metal elements

4a and 4b are electrically connected to the cathode 10 via the

other metal elements

4a and 4b even if they are not electrically connected to the cathode 10 via the magnetic media 9. can be

Although not necessarily limited to this, the magnetic media 9 can be used to assist the transportation of the fastener chain 1. For example, the rotational direction of the magnetic rotating portion 60 and the running direction of the fastener chain 1 running around it are set to be the same. The magnetic medium 9 not only rotates according to the alternating magnetic field, but also flows in the same direction as the magnetic rotating section 60 along with the permanent magnets 64 of the magnetic rotating section 60 . The flow of the magnetic media 9 pushes the fastener chain 1, making it easier for the fastener chain 1 to run in the same direction.

The

metal elements

4a, 4b of the fastener chain 1 have a first surface 5 facing the cathode 10 and a second surface 6 facing away from the cathode 10 (see FIG. 10). It is assumed that the anode 20 is arranged radially outside the fastener chain 1 from the magnetically permeable housing 70, and equivalent magnetic media are present on the first surface 5 side and the second surface 6 side of the

metal elements

4a and 4b. Then, the growth rate of the plating film on the second surface 6 side of the

metal elements

4a and 4b becomes higher than the growth rate of the plating film on the first surface 5 side of the

metal elements

4a and 4b. In order to suppress the difference in the thickness of the plating film between the front and back surfaces of the

metal elements

4a and 4b, it is preferable to turn over the fastener chain 1 on the travel path of the fastener chain 1.

In the case shown in FIG. 6, the plating tank 30 is provided with two alternating magnetic field generators 50, and the upstream spiral running path is provided on the outer periphery of the magnetically permeable housing 70 of the upstream alternating magnetic field generator 50. , a spiral running path on the downstream side is provided on the outer circumference of the permeable housing 70 of the alternating magnetic field generating section 50 on the downstream side, and a reversing section 90 of the fastener chain 1 is provided between these spiral running paths.

　In the case shown in FIG. The reverse of the fastener chain 1 is achieved by reversing the running direction of the fastener chain 1 between the magnetically permeable housing 70 on the upstream side and the magnetically permeable housing 70 on the downstream side. That is, as shown in FIG. 11, when the plating bath 30 is viewed from above, the fastener chain 1 runs clockwise on the spiral running path on the upstream side and rotates counterclockwise on the spiral running path on the downstream side. run. In this manner, the fastener chain 1 is turned upside down, and the thickness of the plating film on the front and back sides of the

metal elements

4a and 4b is made uniform. Note that the fastener chain 1 can be turned upside down by various other methods.

The operation method of the electroplating apparatus 100 will be described with a focus on a predetermined portion of the fastener chain 1. First, as the fastener chain 1 is conveyed, a predetermined portion of the fastener chain 1 is guided by the

rollers

41 and 42 and reaches the running path 80 in the electrolytic solution 35 . Before a predetermined portion of the fastener chain 1 runs on the running path 80, the magnetic rotating part 60 is rotating based on the operation of the motor 61, and an alternating magnetic field is generated around it. The running path 80 of the fastener chain 1 is arranged in an alternating magnetic field, where the magnetic media 9 are in motion. A voltage is applied between the cathode 10 and the anode 20 by a DC power supply E1.

When a predetermined portion of the fastener chain 1 runs on the running path 80 , the

metal elements

4 a and 4 b are electrically connected to the cathode 10 provided on the outer surface of the magnetically permeable housing 70 via the magnetic media 9 . In addition, the magnetic media 9 repeatedly collide with the plated films formed on the

metal elements

4a and 4b. Growth of the plated film and collision of the magnetic media 9 against the plated film occur continuously during a period in which a predetermined portion of the fastener chain 1 travels from the lower end to the upper end of the spiral travel path 80 . In this way, formation of a sufficiently thick plated film is promoted while avoiding an increase in size of the electroplating apparatus 100 .

A predetermined portion of the fastener chain 1 is then turned inside out and runs on the next spiral running path 80 in the opposite direction, that is, from its upper end to its lower end. During this running period, growth of the plated film and collision of the magnetic media 9 with the plated film occur continuously in the same manner as described above. In this manner, plating films are formed on the front and back surfaces of the

metal elements

4a and 4b of the fastener chain 1. As shown in FIG. After running along the spiral running path 80 , a predetermined portion of the fastener chain 1 is guided by the

rollers

43 and 44 and leaves the electrolytic solution 35 .

Metal ions are also deposited on the contact portions of the

metal elements

4a and 4b, forming a plating film. During electroplating, the engagement rows of the

metal elements

4a and 4b along the longitudinal direction of the fastener chain 1 are continuously electrically connected to the cathode 10 through the magnetic media 9, thus The occurrence of a potential gradient in the engagement rows of the

metal elements

4a, 4b along is suppressed. A sequencer can be used for on/off control of each motor 61 and on/off control of the switch SW. The sequencer may also be able to control the start/stop of transport of the fastener chain.

In the above description, mainly with reference to FIG. 6, a configuration in which two alternating magnetic field generating sections 50, two spiral running paths, and one front/back reversing section 90 are provided has been described. A configuration in which only the portion 50 and one spiral track is provided is also envisioned. The running path 80 of the fastener chain 1 is not necessarily helical, but may be linear, zigzag, or the like. Alternatively, the fastener chain 1 may be meanderingly wound around a plurality of magnetically permeable housings 70 , and this may be repeated along the rotation axis of the magnetic rotating portion 60 .

Variations will be described below with reference to FIGS. 12 to 16. FIG. 12 and 13 show a configuration in which four alternating magnetic field generators 50, four spiral running paths, and two front/back reversing sections 90 are provided. In FIG. 12, the fastener chain 1 runs clockwise on the first spiral running path, runs counterclockwise downward on the second spiral running path, and runs on the third spiral running path. Run counter-clockwise upwards, then clockwise downwards on the fourth spiral track. In FIG. 13, the fastener chain 1 runs counterclockwise upward on the first spiral running path, runs clockwise downward on the second spiral running path, and runs on the third spiral running path. Run clockwise upwards and counterclockwise downwards on the fourth spiral track. By providing four or more alternating magnetic field generators 50 and four spiral running paths, a sufficient thickness of the plating film can be ensured even if the running speed of the fastener chain 1 is increased.

14 and 15 show a form in which the position and orientation of the fastener chain 1 are controlled by the

rollers

41, 42 of the transport mechanism 40 rather than the support member 78 (that is, the

rollers

41, 42 of the transport mechanism 40 control the direction of the fastener chain). 1). Even in such a case, the same effect as described above can be obtained within a consistent range.

14 and 15, alternating magnetic field generators 50' are provided above and below the horizontal running path of the fastener chain 1. As shown in FIG. Similar to the above description, the alternating magnetic field generator 50' has a magnetic rotor 60' (the magnetic rotor is schematically shown in FIG. 15) and a magnetically permeable housing 70'. As before, the magnetic rotating portion 60' is rotatably enclosed in a magnetically permeable housing 70' and rotates in response to motor operation. A plurality of magnetic rotating parts 6' may be provided in the magnetically permeable housing 70'. In addition, here, the rotating shaft of the motor is arranged horizontally. A running path 80 for the fastener chain 1 is provided between the upper and lower magnetically permeable housings 70'. The cathodes 10 are arranged vertically with a predetermined interval so as to sandwich the

metal elements

4a and 4b of the fastener chain 1 running on the running path 80. As shown in FIG. Anodes 20 are arranged on both upper and lower sides of the fastener tape of the fastener chain 1 . The magnetic medium 9 rotates according to the rotation of the magnetic rotating part 60, the electrical connection between the cathode 10 and the

metal elements

4a and 4b is ensured, and the plating film grows on the

metal elements

4a and 4b. During growth of the plating film, the magnetic media 9 repeatedly collide with the plating film. As a result, a plated film of good quality similar to that described above is formed. In FIG. 14, the fastener chain 1 passes through the pair of alternating magnetic field generators 50' only once. You may make it pass several times.

FIG. 16 shows that the fastener chain 1 is supplied in the electrolytic solution of the plating bath 30 at a predetermined position and orientation, and a plating film is formed on the metal element by electroplating. In the longitudinal direction of the fastener chain 1 , one end is supported by one or more supports 120 and the other end is supported by another one or more supports 120 . The position and orientation of the fastener chain 1 can also be controlled in this way. The specific configuration of the support 120 may vary, and the number thereof may also vary. In the illustrated example, a total of four supports 120 are provided, two of which are assigned to one end of the fastener chain 1 and the other two to the other end of the fastener chain 1 .

Each support 120 is composed of fixing

members

121 , 124 , springs 122 and pressing balls 123 . The fixing

members

121 and 124 are fixed at predetermined positions in the plating bath 30 . One end of the spring 122 is fixed to the fixing member 121 and the other end of the spring 122 is fixed to the pressing ball 123 . The fastener tape of the fastener chain 1 is sandwiched and positioned between the pressing ball 123 and the supporting surface of the fixing member 124 . As is clear from FIG. 16, running the fastener chain is not essential. As a reminder, the fastener stringers can also be supported in place and orientation by supports 120 in FIG.

Example A plating film was formed on a metal element of a fastener chain using the plating apparatus shown in FIG. 13 of the present application. The rotational speed of the magnetic rotating portion is 400 rpm. The running speed of the fastener chain is 3.5 m/min. The power supply voltage was 1 V, and a current of 10 A was passed through each cathode. Electroplating time is 7 minutes. This fastener chain was sewn onto the denim fabric and washed. As the washing process, a dark color process to maintain the dark color of the denim fabric and a light color process to lighten the denim fabric were performed.

In the washing process, the denim fabric with a zipper chain was pretreated, stonewashed, biowashed, and eco-bleached in this order. In light color processing, strong bleaching was further performed after eco-bleaching. The pretreatment was a step of hot water washing for desizing, which included washing with hot water at 90°C for 20 minutes, washing with hot water at 60°C for 5 minutes, and washing with hot water at 30°C for 5 minutes. Stonewashing is the process of co-washing with pumice stone and was washed for 30 minutes. Bio-washing is a process in which fibers are dissolved using an enzyme to soften the denim fabric, and the denim fabric is washed for 20 minutes with cellulase added to hot water at 55°C. Eco-bleaching is a process of removing the color of the denim fabric using glucose to bring out the whiteness. Glucose (20 g/L) and NaOH (15 g/L) were added to hot water at 90° C. and washed for 20 minutes. Bleaching is a process of removing the color of the denim fabric with a bleaching agent to bring out whiteness, and sodium hypochlorite was added and washed with hot water at 50° for 15 minutes.

In addition to the washing process, dyeing was also applied. As the dyeing process, the dyeing process using a sulfur dye and the dyeing process using a reactive dye were performed. In the dyeing process using sulfur dyes, alkaline materials, dyes, dyeing accelerators, and reducing agents (thiogen) are added to hot water at 50°, and denim fabric with a zipper chain is immersed at 85° for 20 minutes. rice field. In the dyeing process using a reactive dye, the reactive dye was put into hot water at a predetermined temperature, and the denim fabric with a fastener chain was immersed in it for a predetermined period of time. A further 24-hour salt spray test was carried out separately from the washing and dyeing processes.

Comparative Examples 1 and 2
In Comparative Example 1, electroplating was performed by directly contacting the cathode electrode (for example, the conductive medium of Patent Documents 1 and 2) to the metal element. In Comparative Example 2, a plating film was formed on the metal element by an electroless plating method. The running speed of the fastener chain is 30 m/min. Subsequently, washing processing, dyeing processing, and a salt spray test were performed in the same manner as in Examples.

As shown in FIG. 17, it was confirmed that a plating film of quality equal to or higher than that of Comparative Examples 1 and 2 was formed in the example. Before and after the washing process, although there was some peeling in both Comparative Examples 1 and 2 and the example, it was confirmed that the peeling was milder in the example. Further, in dyeing with a reactive dye, as in Comparative Examples 1 and 2, peeling of the plating film was not observed before and after dyeing in the example. As for dyeing with a sulfur dye, although discoloration is observed in the same manner as in Comparative Examples 1 and 2, the area in which discoloration occurs is smaller in Example than in Comparative Examples 1 and 2. In addition, when a test in which salt water was continued to be sprayed for 24 hours was also confirmed, no discoloration of the surface was observed in the Example, as in Comparative Examples 1 and 2.

From the above results, it can be concluded that the plating film of the metal element of the fastener chain manufactured by the manufacturing method (electroplating method) of the present disclosure is the same as the metal plating film of the fastener chain manufactured by the existing manufacturing method (electroplating method or electroless plating method). It was confirmed that it has processing resistance comparable to that of the plated film of the element.

Specifically, with regard to the light-colored washing process, in comparison with Comparative Examples 1 and 2, the uniformity of the surface of the plating layer of the metal element is higher in the example. As for dyeing with reactive dyes, in the example, the degree of glossiness of the plated layer of the metal element is kept high compared to the comparative examples 1 and 2. As described above, in the example, compared with the comparative examples 1 and 2, the uniformity and glossiness of the surface of the plating layer are improved.

Based on the above disclosure, a person skilled in the art can make various modifications to each embodiment and each feature. Reference signs in the claims are for reference only and should not be construed for the purpose of limiting the scope of the claims.

Reference Signs List 1: Fastener chain 2a: Fastener stringer 2b: Fastener stringer 4a: Metal element 4b: Metal element 7: Fastener chain 10: Cathode 20: Anode 30: Plating tank 35: Electrolyte 50: Alternating magnetic field generator 60: Magnetic rotation Part 70: magnetically permeable housing

Claims

A method for manufacturing a fastener chain (1) or a fastener stringer (2a, 2b) in which a plating film is formed on metal elements (4a, 4b), comprising:
applying a voltage between one or more cathodes (10) and one or more anodes (20) at least partially immersed in the electrolyte of a plating bath (30);
generating an alternating magnetic field in the electrolyte when or during a voltage is applied between the one or more cathodes (10) and the one or more anodes (20);
The fastener chain (1) or the fastener is arranged such that at least the metal elements (4a, 4b) of the fastener chain (1) or the fastener stringer (2a, 2b) are arranged in the space where the alternating magnetic field is generated. controlling the position and orientation of the stringers (2a, 2b);
A plurality of magnetic media (9) are moved in accordance with the alternating magnetic field, and the metal elements (4a, 4b) of the fastener chain (1) or the fastener stringers (2a, 2b) move the plurality of magnetic media (9). ) to the cathode (10) and impinging the plurality of magnetic media (9) against a plated film growing on the metal elements (4a, 4b); Production method.
The fastener chain (1) or the fastener is arranged such that the longitudinal direction of the fastener chain (1) or the fastener stringers (2a, 2b) is along a predetermined direction in which different magnetic poles are alternately arranged for generating the alternating magnetic field. Method according to claim 1, characterized in that the position and orientation of the stringers (2a, 2b) are controlled.
(i) the major faces of the metallic elements (4a, 4b) are substantially perpendicular to the magnetic axes with respect to the magnetic poles; and/or (ii) the fastener chain (1) or the fastener stringers (2a, 4b). The position and orientation of the fastener chain (1) or the fastener stringers (2a, 2b) are controlled so that the fastener chain (1) or the fastener stringers (2a, 2b) face the magnetic poles in a flat posture in the width direction thereof. Item 2. The manufacturing method according to item 2.
As a result of the fastener chain (1) or the fastener stringers (2a, 2b) running continuously or intermittently on a predetermined running path (80), the fastener chain (1) or the fastener stringers (2a, 2b) ) is controlled in position and orientation.
A method according to claim 4, characterized in that said predetermined travel path (80) is defined by a plurality of support members (78).
The manufacturing method according to claim 4 or 5, characterized in that the cathode (10) extends along the running path (80) of the fastener chain (1).
7. Any one of claims 4 to 6, wherein said one or more anodes (20) comprises a plurality of anodes (20) arranged at different locations along the running path (80) of said fastener chain (1). The manufacturing method described in .
The runway (80) of the fastener chain (1) comprises one or more helical runways (80) and/or the one or more cathodes (10) comprise one or more helical cathodes (10) 8. The manufacturing method according to any one of claims 4 to 7, comprising:
9. The method of any one of claims 1 to 8, wherein the step of generating an alternating magnetic field in the electrolyte comprises rotating one or more magnetic rotating parts (60) in which different magnetic poles are alternately arranged in the direction of rotation. The manufacturing method according to any one of the items.
position and position of the fastener chain (1) or the fastener stringers (2a, 2b) as a result of running the fastener chain (1) or the fastener stringers (2a, 2b) around the magnetic rotating part (60); 10. The method of claim 9, wherein orientation is controlled.
As a result of running the fastener chain (1) or the fastener stringers (2a, 2b) spirally around the magnetic rotating part (60), the fastener chain (1) or the fastener stringers (2a, 2b) 11. A method according to claim 9 or 10, characterized in that the position and orientation of the are controlled.
The manufacturing method according to any one of claims 9 to 11, characterized in that the magnetic rotating part (60) is housed in a magnetically permeable housing (70) which is sealed in a rotatable manner.
The manufacturing method according to claim 12, wherein the outer surface of the magnetically permeable housing (70) is provided with a plurality of support members (78) for supporting the fastener chain (1).
The manufacturing method according to claim 12 or 13, wherein the cathode (10) comprises a linear or spiral cathode (10) provided on the outer surface of the magnetically permeable housing (70).
The step of generating an alternating magnetic field in the electrolytic solution includes rotating each of the different magnetic rotating parts (60) provided as the one or more magnetic rotating parts (60),
characterized in that the position and orientation of the fastener chain (1) or the fastener stringers (2a, 2b) are controlled as a result of running the fastener chain (1) over the different magnetic rotating parts (60). The manufacturing method according to any one of claims 9 to 14.
Running the fastener chain (1) over the different magnetic rotating parts (60) means that the fastener chain (1) is reversed in the spiral running path (80) around the different magnetic rotating parts (60). 16. The method of claim 15, comprising running 1).
The manufacturing method according to claim 15 or 16, wherein the fastener chain (1) is turned upside down between the different magnetic rotating parts (60).
The position and orientation of the fastener chain (1) or the fastener stringers (2a, 2b) are controlled as a result of the fastener chain (1) running along the rotational direction of the magnetic rotating part (60). 18. The manufacturing method according to any one of claims 9 to 17, characterized by:
A step of cutting a fastener chain (1) obtained by the manufacturing method according to any one of claims 1 to 18;
A slider is attached to the short fastener chain (1) obtained by the cutting, and the metal elements (4a, 4b) of the pair of fastener stringers (2a, 2b) of the short fastener chain (1) are cut. A method of manufacturing a slide fastener, comprising a step of enabling engagement and disengagement.
An electroplating apparatus (100) for forming a plating film on metal elements (4a, 4b) of a fastener chain (1) or fastener stringers (2a, 2b),
a plating bath (30) containing an electrolyte in which one or more cathodes (10) and one or more anodes (20) are at least partially submerged;
an alternating magnetic field generator (50) for generating an alternating magnetic field in the electrolytic solution of the plating bath (30);
The fastener chain (1) provided such that at least the fastener chain (1) or the metal elements (4a, 4b) of the fastener stringers (2a, 2b) are arranged in the space where the alternating magnetic field is generated. or one or more supports (78, 42, 43, 120) of said fastener stringers (2a, 2b),
The cathode (10) comprises the metal elements (4a, 4b) of the fastener chain (1) or fastener stringers (2a, 2b) supported by the one or more supports (78, 42, 43, 120). ) and the cathode (10), allowing a plurality of magnetic media (9) to move in response to the alternating magnetic field, and through the plurality of magnetic media (9), the metal elements (4a, 4b) is electrically connectable to the electroplating apparatus.
The fastener chain (1) or the fastener is arranged such that the longitudinal direction of the fastener chain (1) or the fastener stringers (2a, 2b) is along a predetermined direction in which different magnetic poles are alternately arranged for generating the alternating magnetic field. 21. Electroplating apparatus according to claim 20, characterized in that the one or more supports (78, 42, 43, 120) are provided to control the position and orientation of the stringers (2a, 2b).
The electroplating apparatus according to claim 20 or 21, wherein the alternating magnetic field generator (50) includes one or more magnetic rotating parts (60) in which different magnetic poles are alternately arranged in the rotating direction.
23. Electroplating apparatus according to claim 22, characterized in that said magnetic rotating part (60) is housed in a magnetically permeable housing (70) that is rotatable and sealed.
24. The method of claim 23, wherein said one or more supports (78, 42, 43, 120) comprise one or more support members (78) provided on an outer surface of said magnetically permeable housing (70). electroplating equipment.
The cathode (10) travels along the running path (80) of the fastener chain (1) or the fastener stringers (2a, 2b) supported by the one or more supports (78, 42, 43, 120). 25. The electroplating apparatus of any one of claims 20-24, wherein the electroplating apparatus extends.