WO2016103505A1 - ライトゴールド色を有する金属製ファスナー部材及びそれを備えたファスナー - Google Patents
ライトゴールド色を有する金属製ファスナー部材及びそれを備えたファスナー Download PDFInfo
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- WO2016103505A1 WO2016103505A1 PCT/JP2014/084673 JP2014084673W WO2016103505A1 WO 2016103505 A1 WO2016103505 A1 WO 2016103505A1 JP 2014084673 W JP2014084673 W JP 2014084673W WO 2016103505 A1 WO2016103505 A1 WO 2016103505A1
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- mass
- fastener member
- copper alloy
- metal fastener
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/06—Alloys based on copper with nickel or cobalt as the next major constituent
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/02—Slide fasteners with a series of separate interlocking members secured to each stringer tape
- A44B19/08—Stringers arranged side-by-side when fastened, e.g. at least partially superposed stringers
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/42—Making by processes not fully provided for in one other class, e.g. B21D53/50, B21F45/18, B22D17/16, B29D5/00
- A44B19/44—Securing metal interlocking members to ready-made stringer tapes
- A44B19/46—Securing separate interlocking members
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/42—Making by processes not fully provided for in one other class, e.g. B21D53/50, B21F45/18, B22D17/16, B29D5/00
- A44B19/60—Applying end stops upon stringer tapes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/46—Making other particular articles haberdashery, e.g. buckles, combs; pronged fasteners, e.g. staples
- B21D53/50—Making other particular articles haberdashery, e.g. buckles, combs; pronged fasteners, e.g. staples metal slide-fastener parts
- B21D53/54—Making other particular articles haberdashery, e.g. buckles, combs; pronged fasteners, e.g. staples metal slide-fastener parts slides
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/04—Alloys based on copper with zinc as the next major constituent
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
Definitions
- the present invention relates to a metal fastener member. Moreover, this invention relates to the fastener provided with the said metal fastener member.
- the slide fastener is a well-known component for opening and closing various items. It is known that elements and fasteners that are meshing parts of a slide fastener can be manufactured using a metal as a material, and in particular, those using a copper alloy as a material are frequently used. Conventional characteristics required for a copper alloy fastener member include high whiteness, excellent smoothness, high plating properties, and high castability. As copper alloy materials for fasteners, copper-nickel-zinc alloys such as iron white and copper-zinc alloys such as red and brass are well known, and various improvement proposals centered on these copper alloys. Has been made.
- Patent Document 1 in order to provide a method for manufacturing a slide fastener or a chain thereof having high gloss copper or copper alloy working teeth with excellent smoothness on the outer surface, Cu: Hydrogen peroxide, sulfuric acid, phosphoric acid, surfactant for elements consisting of copper or copper alloy having composition of 60-100%, Zn: 0-35%, Ni: 0-15%, and inevitable impurities And soaking in an acid treatment solution containing an aliphatic alcohol and smoothing the outer surface of the element by acid treatment.
- Patent Document 2 for the purpose of providing a copper alloy for a slide fastener having excellent whiteness, no nickel allergy problem, and excellent in continuous castability and casting quality, a general formula : CuaZnbMnc (where a, b, c are mass%, a is the balance, 10 ⁇ b ⁇ 20, 8 ⁇ c ⁇ 15, may contain inevitable elements) ing.
- Patent Document 3 surface whiteness, appearance decoration, and glossiness are improved by combining a copper alloy element member with electrolytic plating and electroless plating.
- copper alloys to be used include brass, brass, and general formula: CuaZnbMncMdXe (where M is at least one element selected from Al and Sn, X is at least one element selected from Si, Ti, and Cr, a, b , C, d and e are mass%, a is the balance, 0 ⁇ b ⁇ 22, 7 ⁇ c ⁇ 20, 0 ⁇ d ⁇ 5, 0 ⁇ e ⁇ 0.3, and may contain inevitable elements.)
- the alloy represented by is described.
- the color can be controlled by adjusting the color of the plating film, in a slide fastener, the members are rubbed when the fastener is operated, and therefore the plating film may be peeled off. Since the color of the material is exposed when the plating film is peeled off, there is a problem that the design is impaired. Also, if the material is subject to discoloration, it will not be possible to maintain aesthetics due to discoloration over time. Some plating solutions can be expensive. On the other hand, from the viewpoint of practicality, it is desired not only to have a desired color but also to have strength and workability with high practicality as a fastener member.
- the present invention was created based on the above circumstances, and provides a metal fastener member having a specific color of light gold color and having strength, discoloration resistance and processability to withstand practicality. This is one of the issues. Moreover, this invention makes it another subject to provide the fastener provided with such metal fastener members.
- the present inventor has intensively studied to solve the above problems, and as a result, a copper alloy containing a predetermined amount of Zn and Ni has a high-grade color tone similar to gold (hereinafter referred to as “light gold color” in this specification). It has been found that it exhibits high strength, discoloration resistance and processability as a fastener member. The present invention has been completed based on this knowledge.
- the base material is a copper alloy containing 1 to 30% by mass of Zn and 1 to 11% by mass of Ni, with the balance being Cu and inevitable impurities, and has a Vickers hardness of Hv120 or more. It is a metal fastener member of less than Hv220.
- the copper alloy is -2 ⁇ a * ⁇ 10, 10 ⁇ in the CIELAB color space defined by JIS Z8781-4 (2013). b * ⁇ 19 is satisfied.
- the base material is a copper alloy containing 14 to 30% by mass of Zn and 4 to 11% by mass of Ni with the balance being Cu and inevitable impurities, and has a Vickers hardness of Hv120 or more. It is a metal fastener member of less than Hv220.
- the metal fastener member according to the second aspect of the present invention is such that the copper alloy is -2 ⁇ a * ⁇ 2, 12 ⁇ in the CIELAB color space defined by JIS Z8781-4 (2013). b * ⁇ 19 is satisfied.
- the base material is a copper alloy having a composition containing 23 to 27% by mass of Zn and 4 to 8% by mass of Ni with the balance being Cu and inevitable impurities, and has a Vickers hardness of Hv120 or more. It is a metal fastener member of less than Hv220.
- the copper alloy is -2 ⁇ a * ⁇ 0, 15 ⁇ in the CIELAB color space defined by JIS Z8781-4 (2013). b * ⁇ 19 is satisfied.
- the base material is a copper alloy containing 2 to 14% by mass of Zn and 2 to 10% by mass of Ni with the balance being Cu and inevitable impurities, and has a Vickers hardness of Hv120 or more. It is a metal fastener member of less than Hv220.
- the copper alloy is 1 ⁇ a * ⁇ 10, 10 ⁇ b in a CIELAB color space defined by JIS Z8781-4 (2013). * ⁇ 17 is satisfied.
- the base material is a copper alloy containing 9 to 13% by mass of Zn and 3 to 7% by mass of Ni, with the balance being Cu and inevitable impurities, and a Vickers hardness of Hv120 or more. It is a metal fastener member of less than Hv220.
- the copper alloy is 1 ⁇ a * ⁇ 3, 12 ⁇ b in the CIELAB color space defined in JIS Z8781-4 (2013). * ⁇ 15.5 is satisfied.
- the base material is a copper alloy containing 2 to 6% by mass of Zn and 3 to 10% by mass of Ni with the balance being Cu and inevitable impurities, and has a Vickers hardness of Hv120 or more. It is a metal fastener member of less than Hv220.
- the copper alloy is 3 ⁇ a * ⁇ 10, 10 ⁇ b in the CIELAB color space defined by JIS Z8781-4 (2013). * ⁇ 17 is satisfied.
- the copper alloy further contains Mn at a maximum of 0.5 mass%.
- the arithmetic average roughness Ra of the surface is 0.1 ⁇ m or less.
- the total content of Zn and Ni is 2 mass% or more and 36 mass% or less.
- the metal fastener member according to the first to sixth aspects of the present invention has a plating film on the base material.
- the plating film in the CIELAB color space defined by JIS Z8781-4 (2013), is -2 ⁇ a * ⁇ 10, 10 ⁇ b * ⁇ 19 is satisfied.
- the metal fastener member according to the first to sixth aspects of the present invention is an element for a slide fastener.
- the present invention is a slide fastener comprising the metal fastener member according to the present invention.
- the metal fastener member according to the present invention exhibits a light gold color in which the base material itself is excellent in aesthetics. For this reason, since the cut surface after performing a cutting process has the same color as a non-cut surface, designability is not impaired by a cutting process. Moreover, it is not necessary to perform a plating process that may impair the design properties due to peeling. Since the gold color can be expressed by a relatively inexpensive material mainly composed of Cu without plating, a high-quality fastener member can be provided to the user at an affordable price. Furthermore, the metal fastener member according to the present invention is based on a copper alloy having excellent strength, discoloration resistance and workability, and can be said to be extremely practical from the viewpoint of productivity and service life.
- FIG. 1 It is a schematic diagram of a slide fastener. It is a figure explaining how to attach a lower stopper, an upper stopper, and an element to a fastener tape.
- the base material is made of a copper alloy having a predetermined composition, thereby aiming to develop a gold color.
- the metal fastener member according to the present invention contains, as a base material, a copper alloy containing 1 to 30% by mass of Zn and 1 to 11% by mass of Ni, with the balance being Cu and inevitable impurities. .
- the copper alloy may further contain 0.5% by mass of Mn at the maximum.
- the color tone of a copper alloy is determined in principle by the composition, and the copper alloy having the composition is -2 ⁇ a * ⁇ 10, 10 ⁇ b * in the CIELAB color space defined by JIS Z8781-4 (2013) . It can have a color tone satisfying ⁇ 19. Note that a * is a value indicating a magenta-green color tone (+ magenta,-is green), and b * is a yellow-blue color (+ is yellow,-is blue). It is.
- the base material is a copper alloy containing 14 to 30% by mass of Zn and 4 to 11% by mass of Ni, with the balance being Cu and inevitable impurities.
- the copper alloy may further contain 0.5% by mass of Mn at the maximum.
- the copper alloy having the composition can have a color tone satisfying ⁇ 2 ⁇ a * ⁇ 2, 12 ⁇ b * ⁇ 19 in the CIELAB color space defined by JIS Z8781-4 (2013). That is, in the composition range, a light gold color (yellow gold color) in which yellowishness is relatively emphasized can be obtained.
- the copper alloy having the composition can have a color tone satisfying ⁇ 2 ⁇ a * ⁇ 0 and 15 ⁇ b * ⁇ 19 in the CIELAB color space defined by JIS Z8781-4 (2013).
- a copper alloy having a composition containing 2 to 14% by mass of Zn and 2 to 10% by mass of Ni with the balance being Cu and inevitable impurities is used as a base.
- the copper alloy may further contain 0.5% by mass of Mn at the maximum.
- the copper alloy having the composition can have a color tone satisfying 1 ⁇ a * ⁇ 10, 10 ⁇ b * ⁇ 17 in the CIELAB color space defined by JIS Z8781-4 (2013). That is, in the composition range, a light gold color (pink or orange gold color) in which redness is relatively emphasized can be obtained.
- a copper alloy having a composition containing 9 to 13% by mass of Zn and 3 to 7% by mass of Ni, the balance being Cu and inevitable impurities is used as a base.
- the copper alloy may further contain 0.5% by mass of Mn at the maximum.
- the copper alloy having the composition can have a color tone satisfying 1 ⁇ a * ⁇ 3, 12 ⁇ b * ⁇ 15.5 in the CIELAB color space defined by JIS Z8781-4 (2013). That is, in the composition range, a light gold color (orange gold color) in which the orange color is more emphasized can be obtained.
- a copper alloy having a composition containing 2 to 6% by mass of Zn and 3 to 10% by mass of Ni, with the balance being Cu and inevitable impurities is used as a base.
- the copper alloy may further contain 0.5% by mass of Mn at the maximum.
- the copper alloy having the composition can have a color tone satisfying 3 ⁇ a * ⁇ 10, 10 ⁇ b * ⁇ 17 in the CIELAB color space defined by JIS Z8781-4 (2013). That is, in the composition range, a light gold color (pink gold color) in which the pink color is more emphasized can be obtained.
- Zn has the effect of changing the a * value more than the b * value when added to copper, and changes the color tone of Cu to a yellowish color tone. Furthermore, Zn has the effect of improving the mechanical properties and work hardening properties of the alloy by solid solution strengthening, the deoxidation effect in melt casting, and the effect of reducing the price of the fastener member. By increasing the Zn content, the cost can be reduced and high strength can be obtained. Moreover, the advantage that the oxidation resistance and castability of the molten metal are improved is also obtained. However, if the Zn content is excessive, cold workability is impaired.
- the Zn content is preferably 15% by mass or more, more preferably 19% by mass or more, and more preferably 23% by mass or more in the range exhibiting a yellow gold color. More preferably, it is preferably 30% by mass or less, and more preferably 27% by mass or less. Further, in the range exhibiting an orange gold color, the Zn content is preferably 9% by mass or more, more preferably 10% by mass or more, and even more preferably 10.5% by mass or more. And it is preferable that it is 12.5 mass% or less, It is more preferable that it is 12 mass% or less, It is still more preferable that it is 11.5 mass% or less.
- the Zn content is preferably 2.5% by mass or more, more preferably 3% by mass or more, and even more preferably 3.5% by mass or more. It is preferably 5.5% by mass or less, more preferably 5% by mass or less, and even more preferably 4.5% by mass or less.
- Ni plays an important role in color tone adjustment. Ni has the effect of changing the color tone of Cu to white. Since Ni is not easily oxidized, it is a useful element from the viewpoint of obtaining a light gold color having excellent resistance to discoloration. From this point of view, the Ni content is preferably 4% by mass or more, more preferably 5% by mass or more, and 11% by mass or less in the range of yellow gold color. Is more preferable, and it is still more preferable that it is 8 mass% or less. Further, in the range exhibiting an orange gold color, the Ni content is preferably 3.5% by mass or more, more preferably 4% by mass or more, and even more preferably 4.5% by mass or more.
- the Ni content is preferably 3.5% by mass or more, more preferably 4% by mass or more, and even more preferably 4.5% by mass or more. It is preferably 9% by mass or less, more preferably 8% by mass or less, and even more preferably 7% by mass or less.
- Mn has the effect of changing the color tone of Cu to white as in Ni. Mn is more easily oxidized than Ni, and is not an element that should be positively added because it reduces discoloration resistance. However, the effect of improving the mechanical properties of the copper alloy by solid solution strengthening can also be obtained. Since it also has a deoxidizing effect in the molten metal at the time of melting, a content of up to 0.5% by mass is acceptable.
- the Mn content is preferably 0.4% by mass or less, more preferably 0.2% by mass or less, and still more preferably 0.1% by mass or less.
- the content of each impurity element allowed as an inevitable impurity is generally 0.1% by mass or less, preferably 0.05% by mass or less.
- the metal fastener member according to the present invention has a Vickers hardness of Hv120 or more and less than 220. Vickers hardness within this range is preferable in that a sufficient strength to function as an element of a metal fastener can be obtained while ensuring the life of the molding die. Moreover, in the process of manufacturing the element of the metal fastener, a Y-shaped continuous deformed line to be described later is produced. When the Vickers hardness of the metal fastener member is in the above range, the Y-shaped continuous deformed line The Vickers hardness of the cross section is usually Hv120 or more and less than 220 on average. In the present invention, in addition to those in the form of the final part such as an element, a Y-shaped continuous deformed line is included in the metal fastener member.
- the element of the metal fastener is given its shape by cold working a round wire made of a copper alloy.
- work strain is introduced into a round wire made of a copper alloy, the material strength is increased by work hardening, and the strength of the element can be obtained.
- the strength and workability of the element are as follows: (1) processing strain introduced into the round wire made of copper alloy, (2) crystal grain size of the copper wire before cold working, (3) Zn and Ni It varies depending on the amount added. Therefore, these factors are important for obtaining the strength and workability of the element.
- the work strain introduced into the round wire made of copper alloy is too small, the work hardening rate becomes small and the element strength cannot be obtained.
- the processing strain is too large, the workability is inferior and the life of the molding die is reduced. In some cases, the element is cracked due to the processing limit, and the function of the metal fastener as an element is impaired.
- the crystal grain size of the round wire made of copper alloy is too small after the final heat treatment (in the case of elements, after heat treatment just before producing a Y-shaped continuous deformed wire by cold rolling), it is processed in the subsequent cold working It becomes easy to harden, the workability is inferior, the life of the molding die is reduced, and in some cases, the element is cracked due to the processing limit, and the function as a metal fastener is impaired. Conversely, if the crystal grain size of the round wire made of the copper alloy before the final cold working is too large, irregularities due to the crystal grain size occur on the element surface, and the appearance of the metal fastener is impaired.
- the crystal grain size can be adjusted by the temperature condition and time condition of the final heat treatment (recrystallization annealing).
- the crystal grain size after the final heat treatment is preferably 1 ⁇ m or more, more preferably 10 ⁇ m or more, and even more preferably 30 ⁇ m or more.
- the suitable crystal grain size after the final heat treatment is preferably 200 ⁇ m or less, more preferably 150 ⁇ m or less, and even more preferably 90 ⁇ m or less.
- a “comparative method” based on JIS H 0501: 1986 (a method for measuring crystal grain size of a copper product) is adopted.
- the total addition amount of Zn and Ni is less than 2% by mass, the Vickers hardness does not reach Hv120 even when a working strain with a reduction ratio of 70% or more is applied by cold working, so that high element strength cannot be obtained. . Therefore, the total content of Zn and Ni is preferably 2% by mass or more, and more preferably more than 10% by mass. On the other hand, when the total addition amount of Zn and Ni exceeds 41% by mass, if a processing strain of 70% or more is applied at the rolling reduction by cold working, the Vickers hardness is locally Hv220 or more, and the working stress is increased. The life of the mold used at the time of molding increases and the workability deteriorates. Therefore, the total content of Zn and Ni is preferably 41% by mass or less, more preferably 36% by mass or less, and still more preferably 34.5% by mass or less.
- the processing strain introduced into the copper alloy needs to be 70% or more in terms of rolling reduction, and preferably 80% or more is optimal.
- the rolling reduction is the rolling reduction at the time of final rolling of the fastener member. For example, as shown in the examples described later, after performing heat treatment for 1 h to 6 h in a temperature range of 300 ° C. to 650 ° C., Y-shaped by cold rolling. It is the rolling reduction when processing the continuous deformed wire.
- the metal fastener member according to the present invention can be subjected to various surface treatments as necessary. For example, smoothing treatment, rust prevention treatment, clear coating treatment, and plating treatment can be performed.
- an uneven cut trace remains on the outer surface through machining such as cutting, punching, and die, but this can be smoothed by smoothing treatment.
- the smoothing process also serves to smooth the feel of the metal fastener member and to improve the slidability of the slider when the slide fastener member is used. It also has the effect of improving luster and aesthetics.
- the smoothing treatment include chemical polishing treatment.
- a chemical polishing solution containing hydrogen peroxide and sulfuric acid can be used. Degreasing and / or pickling may be appropriately performed before and after the chemical polishing treatment.
- a preferred smoothing treatment is a method in which a metal fastener member is immersed in an acid treatment solution containing hydrogen peroxide, sulfuric acid, phosphoric acid, a surfactant and an aliphatic alcohol, and then washed and dried.
- a metal fastener member such as a slide fastener element is directly subjected to hydrogen peroxide: 50 to 250 g / L, sulfuric acid: 10 to 150 g / L, phosphoric acid: 0.5 to 5 g / L without going through a degreasing process.
- a method of immersing in an acid treatment solution comprising an acidic aqueous solution containing surfactant: 0.01 to 2 g / L and aliphatic alcohol: 1 to 100 g / L is more preferable.
- the smoothing treatment can be performed in a very short time by a single step of immersing in the acid treatment solution.
- the method is described in detail in Japanese Patent Application Laid-Open No. 10-018046, the entire text of which is incorporated herein by reference.
- the arithmetic average roughness Ra of the surface of the metal fastener member can be set to 0.1 ⁇ m or less, preferably 0.01 ⁇ m or less, for example, 0.001 to 0.1 ⁇ m. It can be.
- the arithmetic average roughness Ra of the surface is measured with a contact type roughness meter in accordance with JIS B0601 (2001).
- a rust prevention treatment rust prevention step + water washing step + drying step.
- a clear coating treatment paint step + drying step
- a plating treatment can be further performed to improve the corrosion resistance, weather resistance, and the like.
- the rust prevention treatment is a process for preventing re-oxide formation on the surface of the metal fastener member smoothed by the acid treatment, and improving the adhesion of the coating film when performing clear coating or plating treatment later. . Rust prevention treatment is not necessary when the next process such as clear coating or plating treatment is performed immediately after smoothing treatment, and is omitted when slight oxide formation does not become a problem even in other treatments. be able to.
- the rust-preventing step can be performed by dipping or spraying using a known benzotriazole-based aqueous solution, phosphate-based aqueous solution, or other rust-preventing solution.
- a surfactant may be added.
- the water washing step after the rust prevention step can be omitted if the rust inhibitor does not adversely affect the fastener tape.
- the drying step is preferably performed at a temperature of 150 ° C. or less that does not affect the dyeing fastness of the fastener tape by hot air or other heat source.
- the clear coating process can improve the corrosion resistance of metal fastener members.
- the clear coating treatment can be performed, for example, by applying a clear paint to the surface of the metal fastener member by a roll coater or other methods and then drying the coating film.
- the plating process is not necessary for utilizing the color of the base material, but the plating process is performed for the purpose of improving the corrosion resistance and decorating.
- electroplating method electroless plating is preferably performed before electroplating
- it does not preclude the use of various methods such as vacuum plating, dry plating such as sputtering and ion plating. .
- the plating film When the plating treatment is performed in the same color as the base material, there is an advantage that the design property can be maintained even after the plating film is peeled off.
- the plating film preferably satisfies ⁇ 2 ⁇ a * ⁇ 2, 12 ⁇ b * ⁇ 19 in the CIELAB color space defined by JIS Z8781-4 (2013). Further, it is more preferable that the plating film has a * and b * within ⁇ 2 with respect to a * and b * of the base material, respectively, and the plating film has a * and b * within ⁇ 1 respectively. Is even more preferred.
- the same color plating is possible by making the composition of the plating film substantially the same as the composition of the base material.
- waxing may be applied to reduce sliding resistance. This step may be omitted if the sliding resistance is sufficiently light.
- FIG. 1 is a schematic diagram of a slide fastener.
- a slide fastener has a pair of fastener tapes 1 having a core portion 2 formed on one side end side and a predetermined portion on the core portion 2 of the fastener tape 1.
- a pair of elements facing each other, with the element 3 being caulked and fixed (attached) at intervals, the upper stopper 4 and the lower stopper 5 being caulked and fixed to the core 2 of the fastener tape 1 at the upper and lower ends of the element 3 3 is provided with a slider 6 that is slidable in the vertical direction to engage and disengage the element 3.
- a state in which the element 3 is attached to the core portion 2 of one fastener tape 1 is called a slide fastener stringer, and the element 3 attached to the core portion 2 of the pair of fastener tapes 1 is engaged. What is present is called a slide fastener chain 7.
- the slider 6 shown in FIG. 1 is not shown in the figure, but a long body made of a plate-like body having a rectangular cross section is subjected to press processing in multiple stages, cut at predetermined intervals, and a slider body is produced. Furthermore, a spring and a handle are mounted as necessary. Further, the puller is also punched out from the plate-like body having a rectangular cross section for each predetermined shape, and is caulked and fixed to the slider body.
- the bottom stop 5 may be a break-and-fit insert composed of a butterfly stick, a box stick, and a box, and the pair of slide fastener chains can be separated by a slider opening operation. .
- FIG. 2 is a drawing showing a method of manufacturing the slide fastener element 3, the upper stopper 4 and the lower stopper 5 shown in FIG. 1 and how to attach the fastener tape 1 to the core 2.
- the element 3 is formed by cutting a deformed wire 8 having a substantially Y-shaped cross section for each predetermined dimension, and press-molding this to form an engaging head 9, and then the fastener tape 1. It is attached by caulking both leg portions 10 to the core portion 2.
- the upper stopper 4 is formed by cutting a rectangular wire 11 (rectangular wire) having a rectangular cross section into a predetermined dimension, forming it into a substantially U-shaped cross section by bending, and then caulking the core portion 2 of the fastener tape 1. Is attached.
- the lower stopper 5 is mounted by cutting a deformed wire 12 having a substantially X-shaped cross section for each predetermined size, and then caulking the core wire 2 of the fastener tape 1.
- the element 3 and the upper and lower stoppers 4 and 5 are attached to the fastener tape 1 at the same time.
- the element 3 is continuously attached to the fastener tape 1, and the fastener chain is first attached.
- the element 3 in the fastener attaching region of the fastener chain is removed, and a predetermined upper and lower stopper 4 or 5 is mounted in the vicinity of the element 3 in this region.
- manufacture and attachment are performed as described above, the elements and fasteners that are constituent members of the slide fastener need to be made of materials having excellent cold workability.
- the metal fastener member according to the present invention is excellent in cold workability, and, for example, can be processed with a rolling reduction of 70% or more, and thus is suitable as a material for elements and upper and lower stops.
- ⁇ Slide fasteners can be attached to various items, and function especially as an opening / closing tool.
- the article to which the slide fastener is attached is not particularly limited, and examples thereof include daily necessaries such as clothing, bags, shoes, and miscellaneous goods, and industrial articles such as water storage tanks, fishing nets, and space suits.
- the metal fastener member concerning the present invention is not necessarily limited to the slide fastener. It can also be applied as a member for snap fasteners and other metal fasteners.
- the obtained fastener chain was subjected to acid treatment by being immersed in an acid treatment solution at 30 ° C. for 2 minutes.
- the acid treatment liquid polyoxyethylene oleyl ether as a surfactant is 1 g / L, hydrogen peroxide is 80 g / L, sulfuric acid is 20 g / L, phosphoric acid is 0.5 g / L, and methyl alcohol is 20 g / L.
- the contained acidic aqueous solution was used.
- the acid treatment liquid contained in the fastener tape was removed by vacuum dehydration.
- water washing step water was strongly sprayed on the fastener chain, and then immediately vacuum dehydrated, followed by immersion in water and immediately vacuum dehydration.
- the water washing step including spraying, dehydration, dipping, and dehydration was performed three times.
- a copper alloy continuous wire having a composition corresponding to the test number was prepared in the same procedure as described above, and the workability when processed under conditions of a rolling reduction of 70% corresponding to element molding was evaluated in 1 to 3 stages. .
- the above condition is a test that simulates the production of a Y-shaped continuous deformed wire by cold rolling after heat treatment for 1 h to 6 h in a temperature range of 300 ° C. to 650 ° C. This is because the distortion is once canceled due to recrystallization by heat treatment.
- the evaluation criteria are as follows. The results are shown in Table 1. (1) Processing crack After the said processing, it was checked whether there was any crack on the side of the wire.
- ⁇ Surface roughness test> The arithmetic average roughness Ra of the element surface of the fastener chain after the smoothing treatment was measured with a contact-type roughness meter in accordance with JIS B0601 (2001), and all were in the range of 0.02 to 0.06 ⁇ m. .
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Abstract
Description
本発明に係る金属製ファスナー部材では、所定の組成をもつ銅合金で母材を構成することにより、ゴールド色を発現することを狙いとしている。
なお、ここでの結晶粒径の測定方法はJIS H 0501:1986(伸銅品結晶粒径測定法)に基づく“比較法”を採用する。
本発明に係る金属製ファスナー部材には必要に応じて、各種の表面処理を行うことができる。例えば、平滑化処理、防錆処理、クリア塗装処理、及び鍍金処理などを行うことができる。
本発明に係る金属製ファスナー部材(エレメント、上止具及び下止具)を備えたスライドファスナーの例を図面に基づき具体的に説明する。図1は、スライドファスナーの模式図であり、図1に示すようにスライドファスナーは、一側端側に芯部2が形成された一対のファスナーテープ1とファスナーテープ1の芯部2に所定の間隔をおいてかしめ固定(装着)されたエレメント3と、エレメント3の上端及び下端でファスナーテープ1の芯部2にかしめ固定された上止具4及び下止具5と、対向する一対のエレメント3間に配され、エレメント3の噛合及び開離を行うための上下方向に摺動自在なスライダー6を備える。なお、一本のファスナーテープ1の芯部2にエレメント3が装着された状態のものをスライドファスナーストリンガーといい、一対のファスナーテープ1の芯部2に装着されたエレメント3が噛合状態となっているものをスライドファスナーチェーン7という。
原材料として、Cu(純度99.99質量%以上)、Zn(純度99.9質量%以上)、Ni(純度99.9質量%以上)を使用して、表1に記載の試験番号に応じた各成分組成をもつようにこれら原材料を配合して連続鋳造装置内で溶解し、次いで連続鋳造により連続ワイヤを作製した。得られた連続ワイヤに減面率70%以上の伸線処理し、300℃~650℃の温度範囲で1h~6hの熱処理を施した。このときの各ワイヤの横断面の結晶粒径をJIS H 0501に基づく伸銅品結晶粒度試験方法で観察したところ、45~60μmであった。その後、冷間圧延により圧下率70%以上の加工歪を付与して断面略Y字状の連続異形線を製造した。その後、切断、プレス、曲げ、かしめの各種冷間加工を施してYKK株式会社カタログ「FASTENING専科(2009年2月発行)」で規定する「5R」の大きさのエレメント形状とした後、これをポリエステル製ファスナーテープに装着してファスナーストリンガーを作成し、更に一対のファスナーストリガーの対向するエレメント同士を噛み合わせてファスナーチェーンを作製した。
得られたファスナーチェーンに対して、30℃の酸処理液中に2分間浸漬して酸処理を行った。酸処理液としては、界面活性剤としてポリオキシエチレンオレイルエーテルを1g/L、過酸化水素を80g/L、硫酸を20g/L、リン酸を0.5g/L、及びメチルアルコールを20g/L含有する酸性水溶液を使用した。次に、次工程での水洗洗浄を容易にするために、ファスナーテープに含まれた酸処理液を真空脱水により除去した。その後、水洗工程として、ファスナーチェーンに水を強力にスプレーした後、直ちに真空脱水し、続いて水に浸漬した後、直ちに真空脱水を行った。ファスナーテープに含まれた酸処理液を充分に除去するために、スプレー、脱水、浸漬、脱水からなる前記の水洗工程を3回行った。
平滑化処理後のファスナーチェーンのエレメント表面に対して、ミノルタ(株)製の色彩色差計CR-300を用いて、0~40℃、85%RH以下の条件で、JIS Z8781-4(2013)にて規定されるCIELAB色空間におけるa*及びb*を求めた。光源はパルスキセノンランプを使用した。結果を表1に示す。色調は、-2<a*<10、10<b*<19を満たす場合を○とし、満たさない場合を×とした。
試験番号に応じた組成をもつ銅合金製の連続ワイヤを上記と同様の手順で作製後(伸線熱処理を含む)、エレメント成型に相当する圧下率70%の条件でY字状の連続異形線に加工したときの横断面のビッカース硬度(JIS 2244:2009に準拠)を複数個所で測定し、その平均値に基づいて1~3段階で評価した。評価基準は以下の通りである。結果を表1に示す。2を○、3を◎とした。
1:平均ビッカース硬度がHv120未満
2:平均ビッカース硬度がHv120以上、Hv220未満
3:平均ビッカース硬度がHv220以上
試験番号に応じた組成をもつ銅合金製の連続ワイヤを上記と同様の手順で作製後、エレメント成型に相当する圧下率70%の条件で加工したときの加工性を1~3段階で評価した。上記条件は、300℃~650℃の温度範囲で1h~6hの熱処理を施した後の冷間圧延によるY字状の連続異形線の製造を模擬した試験となる。熱処理によって再結晶するため歪みが一度キャンセルされるからである。評価基準は以下の通りである。結果を表1に示す。
(1)加工割れ
当該加工後にワイヤ側面に割れがないかを確認した。
(2)加工負荷
硬度が高くなると金型に負荷をかけるという観点から、上述したビッカース硬度の値を基に、圧下率70%の加工後のビッカース硬度が220Hv未満は○、220Hv以上は△とした。
平滑化処理後のファスナーチェーンのエレメント表面の算術平均粗さRaをJIS B0601(2001)に準拠して接触式粗さ計で測定したところ、いずれも0.02~0.06μmの範囲であった。
表1より、実施例1~14においては、ライトゴールド色という特定の色彩を有しつつ、実用性に耐える強度及び加工性が得られた。また、データは掲載していないが、実施例1~14に係るサンプルはNiの存在によって耐変色性についても優れていることが確認されている。一方、比較例1~7においては、何れもライトゴールド色が得られなかった。更に、比較例1についてはZn及びNiの添加量が多すぎたことで硬くなりすぎ、比較例2についてはZn及びNiを添加しなかったことで強度が不足した。
2 芯部
3 エレメント
4 上止具
5 下止具
6 スライダー
7 スライドファスナーチェーン
8 断面略Y字状の異形線
9 係合頭部
10 脚部
11 矩形線
12 断面略X字状の異形線
Claims (19)
- Znを1~30質量%及びNiを1~11質量%含有し、残部がCu及び不可避的不純物からなる組成の銅合金を母材とし、ビッカース硬度がHv120以上Hv220未満の金属製ファスナー部材。
- 前記銅合金がJIS Z8781-4(2013)にて規定されるCIELAB色空間において、-2<a*<10、10<b*<19を満たす請求項1に記載の金属製ファスナー部材。
- Znを14~30質量%及びNiを4~11質量%含有し、残部がCu及び不可避的不純物からなる組成の銅合金を母材とし、ビッカース硬度がHv120以上Hv220未満の金属製ファスナー部材。
- 前記銅合金がJIS Z8781-4(2013)にて規定されるCIELAB色空間において、-2<a*<2、12<b*<19を満たす請求項3に記載の金属製ファスナー部材。
- Znを23~27質量%及びNiを4~8質量%含有し、残部がCu及び不可避的不純物からなる組成の銅合金を母材とし、ビッカース硬度がHv120以上Hv220未満の金属製ファスナー部材。
- 前記銅合金がJIS Z8781-4(2013)にて規定されるCIELAB色空間において、-2<a*<0、15<b*<19を満たす請求項5に記載の金属製ファスナー部材。
- Znを2~14質量%及びNiを2~10質量%含有し、残部がCu及び不可避的不純物からなる組成の銅合金を母材とし、ビッカース硬度がHv120以上Hv220未満の金属製ファスナー部材。
- 前記銅合金がJIS Z8781-4(2013)にて規定されるCIELAB色空間において、1<a*<10、10<b*<17を満たす請求項7に記載の金属製ファスナー部材。
- Znを9~13質量%及びNiを3~7質量%含有し、残部がCu及び不可避的不純物からなる組成の銅合金を母材とし、ビッカース硬度がHv120以上Hv220未満の金属製ファスナー部材。
- 前記銅合金がJIS Z8781-4(2013)にて規定されるCIELAB色空間において、1<a*<3、12<b*<15.5を満たす請求項9に記載の金属製ファスナー部材。
- Znを2~6質量%及びNiを3~10質量%含有し、残部がCu及び不可避的不純物からなる組成の銅合金を母材とし、ビッカース硬度がHv120以上Hv220未満の金属製ファスナー部材。
- 前記銅合金がJIS Z8781-4(2013)にて規定されるCIELAB色空間において、3<a*<10、10<b*<17を満たす請求項11に記載の金属製ファスナー部材。
- 前記銅合金が更に、Mnを最大で0.5質量%含有する請求項1~12の何れか一項に記載の金属製ファスナー部材。
- 表面の算術平均粗さRaが0.1μm以下である請求項1~13の何れか一項に記載の金属製ファスナー部材。
- ZnとNiの含有量の合計が2質量%以上36質量%以下である請求項1~14のいずれか一項に記載の金属製ファスナー部材。
- 母材上に鍍金皮膜を有する請求項1~15の何れか一項に記載の金属製ファスナー部材。
- 前記鍍金皮膜がJIS Z8781-4(2013)にて規定されるCIELAB色空間において、-2<a*<10、10<b*<19を満たす請求項16に記載の金属製ファスナー部材。
- スライドファスナー用のエレメントである請求項1~17の何れか一項に記載の金属製ファスナー部材。
- 請求項1~18の何れか一項に記載の金属製ファスナー部材を備えるスライドファスナー。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016565843A JP6393343B2 (ja) | 2014-12-26 | 2014-12-26 | ライトゴールド色を有する金属製ファスナー部材及びそれを備えたファスナー |
| DE112014007286.9T DE112014007286B4 (de) | 2014-12-26 | 2014-12-26 | Reißverschlussteil aus Metall mit hellgoldener Farbe und Reißverschluss damit |
| US15/537,511 US10161019B2 (en) | 2014-12-26 | 2014-12-26 | Metallic fastener member having light gold color, and fastener provided therewith |
| PCT/JP2014/084673 WO2016103505A1 (ja) | 2014-12-26 | 2014-12-26 | ライトゴールド色を有する金属製ファスナー部材及びそれを備えたファスナー |
| CN201480084308.7A CN107105833B (zh) | 2014-12-26 | 2014-12-26 | 具有淡金色的金属制紧固构件和具有其的紧固件 |
| TW104140833A TWI627296B (zh) | 2014-12-26 | 2015-12-04 | 具淡金色之金屬製扣結件構件及具備其之扣結件 |
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| WO2016157337A1 (ja) * | 2015-03-27 | 2016-10-06 | Ykk株式会社 | スライドファスナー用エレメント |
| WO2018020583A1 (ja) * | 2016-07-26 | 2018-02-01 | Ykk株式会社 | 銅合金製ファスナーエレメント及びスライドファスナー |
| CN108783773B (zh) * | 2018-07-19 | 2021-05-07 | 浙江伟星实业发展股份有限公司 | 一种增加塑钢拉链链牙上色牢度的处理工艺及塑钢拉链 |
| EP3847921B1 (en) * | 2018-09-06 | 2025-06-04 | YKK Corporation | Fastener member |
| JP7344855B2 (ja) * | 2019-12-11 | 2023-09-14 | 日本碍子株式会社 | 意匠性に優れた物品及びその製造方法 |
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| JP3396658B2 (ja) * | 1999-05-05 | 2003-04-14 | オリン コーポレイション | 金色外観の銅合金 |
| JP3713233B2 (ja) | 2001-12-14 | 2005-11-09 | Ykk株式会社 | 連続鋳造性に優れたスライドファスナー用銅合金 |
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- 2014-12-26 DE DE112014007286.9T patent/DE112014007286B4/de active Active
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- 2014-12-26 US US15/537,511 patent/US10161019B2/en active Active
- 2014-12-26 JP JP2016565843A patent/JP6393343B2/ja active Active
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| JP6393343B2 (ja) | 2018-09-19 |
| JPWO2016103505A1 (ja) | 2017-07-13 |
| CN107105833A (zh) | 2017-08-29 |
| TWI627296B (zh) | 2018-06-21 |
| CN107105833B (zh) | 2020-04-10 |
| DE112014007286T5 (de) | 2017-10-19 |
| US20170349976A1 (en) | 2017-12-07 |
| DE112014007286B4 (de) | 2023-12-07 |
| TW201629238A (zh) | 2016-08-16 |
| US10161019B2 (en) | 2018-12-25 |
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