JP2015168863A - Method of manufacturing exterior part for timepiece, exterior part for timepiece, and timepiece - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of efficiently manufacturing an exterior part for timepiece with superior aesthetic appearance as a method which less wastes materials and is small in load on environment.SOLUTION: A method of manufacturing an exterior part 10 for timepiece includes: a process 1c of forming a mask P6 on a base material P1; a film forming process 1d of forming an opening part P61 in the mask by blowing aerosol, formed by dispersing particles in air, to the base material from a nozzle through the mask and then removing a part of a domain, coming into contact with the particles, of the mask with impart force of the aerosol, and thereby forming a film P3 on the base material by depositing particles P31; a mask removing process 1e of removing the mask; and a process 1f of forming an antireflective film P4 on the surface side of the base material where the film P3 is formed. Prior to the film forming process, at least one base formation layer is formed of a material, comprising one kind or more kinds selected from at least one layer of TiN, AlN, SiN, SiO, SiON, and AlO, on a top surface of the base material P1.

Description

  The present invention relates to a method for manufacturing a watch exterior part, a watch exterior part, and a watch.

  A watch is required to have a function as a practical product and to have excellent aesthetics (aesthetic appearance) as a decorative product.

  For this reason, materials having excellent texture such as various metal materials are used for the exterior parts for watches (for example, see Patent Document 1).

  In order to further improve aesthetics, a decorative layer (film) is provided in a predetermined pattern.

  Conventionally, in order to provide a decorative layer (film) with a predetermined pattern, vapor deposition such as vacuum deposition is performed with a mask (resist etc.) arranged, or film formation is performed on the entire surface of the substrate. After that, a method of removing unnecessary portions by etching or the like is adopted.

  However, in these methods, the constituent material of the coating contained in the final timepiece exterior part is a very small part of the material used for manufacturing, and the material is wasted, which is not preferable from the viewpoint of resource saving.

  In addition, the increase in processes accompanying the recovery of the film-forming material and the recycling of the recovered material has caused problems such as environmental burden and cost increase.

JP 2008-150660 A

  An object of the present invention is to provide a method for manufacturing a watch exterior part that can efficiently manufacture a watch exterior part having an excellent aesthetic appearance by a method with less waste of materials and a low environmental load. Providing watch exterior parts with excellent aesthetic appearance, less material waste during production, and less impact on the environment. Also, better appearance, less waste of materials during production, less impact on the environment. The object is to provide a watch with a small watch exterior part.

Such an object is achieved by the present invention described below.
The method for manufacturing a watch exterior part of the present invention includes a step of forming a mask on a base material,
An aerosol in which particles are dispersed in a gas is sprayed from a nozzle through the mask toward the base material, and a part of the mask that is in contact with the particles is removed by the impact force of the aerosol. Forming a coating on the substrate by forming an opening in the mask and forming a coating on which the particles are deposited;
And a mask removing process for removing the mask.

  Accordingly, it is possible to provide a method for manufacturing a watch exterior part that can efficiently manufacture a watch exterior part having an excellent aesthetic appearance by a method with less waste of materials and a low environmental load.

  In the method for manufacturing a watch exterior part of the present invention, the mask is made of polyimide, cycloolefin polymer (COP), acrylic resin, polyethylene, polypropylene, ethylene-propylene copolymer, polyethylene terephthalate, polytetrafluoroethylene (PTFE). It is preferably composed of a material including one or more selected from the group consisting of tetrafluoroethylene / perfluoroalkyl vinyl ether copolymer (PFA), nylon and polyethylene naphthalate (PEN). .

  Thereby, in the coating film forming step, the area to be protected can be more reliably protected while the opening is more reliably formed at the site where the film is to be formed, and the area where the film is not to be formed can be more reliably protected. The stability, durability, and handleability (ease of handling) of the mask shape can be made particularly excellent, and the formed film can have a desired shape more reliably. Further, the removal in the mask removal process is facilitated, and the productivity of the watch exterior part can be made particularly excellent.

  In the manufacturing method of the timepiece exterior component of the present invention, the thickness of the mask is preferably 5 nm or more and 10,000 nm or less.

  Thereby, in the coating film forming step, the area to be protected can be more reliably protected while the opening is more reliably formed at the site where the film is to be formed, and the area where the film is not to be formed can be more reliably protected. The stability, durability, and handleability (ease of handling) of the mask shape can be made particularly excellent, and the formed film can have a desired shape more reliably. Further, the removal in the mask removal process is facilitated, and the productivity of the watch exterior part can be made particularly excellent.

  In the method for manufacturing a timepiece exterior part of the present invention, it is preferable to have a base layer forming step of forming at least one base layer on the surface of the base material prior to the film forming step.

  Thereby, for example, the adhesion between the substrate and the coating can be made particularly excellent. Further, for example, by making the base layer function as a colored layer, the aesthetic appearance of the watch exterior part can be further improved. In addition, by making the underlayer function as a gap layer, it is possible to obtain a three-dimensional appearance such that the coating is lifted.

In the method for manufacturing an exterior part for a watch according to the present invention, a layer made of a material including one or more selected from the group consisting of TiN, AlN, SiN, SiOx, SiON, and AlOx is used as the base layer. It is preferable to form.
Thereby, the adhesiveness of a base material and a film can be made especially excellent.

  In the manufacturing method of the timepiece exterior component of the present invention, it is preferable to have an antireflection film forming step of forming an antireflection film after the film forming step.

  As a result, unintentional reflection of external light can be effectively prevented, and the aesthetic appearance of the watch exterior part can be made particularly excellent.

The timepiece exterior component of the present invention is manufactured using the manufacturing method of the present invention.
As a result, it is possible to provide an exterior part for a watch that is excellent in aesthetic appearance, has little waste of materials during manufacture, and has a low environmental impact.

The timepiece of the present invention includes the timepiece exterior component of the present invention.
Thereby, it is possible to provide a timepiece having an exterior part for a timepiece that is excellent in aesthetic appearance, has little waste of materials at the time of manufacture, and has a low environmental load.

It is sectional drawing which shows typically each process about suitable embodiment of the manufacturing method of the exterior components for timepieces of this invention. It is a figure for demonstrating the relationship between the energy per unit area which each particle | grain in an aerosol gives to a mask, and the formation location of an opening part. It is a longitudinal cross-sectional side view which shows suitable embodiment of the film formation apparatus used for formation of a film. It is a longitudinal cross-sectional side view which shows an example of a structure of the crusher with which a film forming apparatus is provided. It is a block diagram of the principal part of the film formation apparatus shown in FIG. It is a typical top view showing a suitable embodiment at the time of applying a timepiece exterior part of the present invention to a cover glass. It is sectional drawing which shows suitable embodiment of the timepiece (portable timepiece) of this invention.

  Hereinafter, a method for manufacturing a watch exterior part, a watch exterior part, and a watch according to the present invention will be described in detail based on preferred embodiments shown in the accompanying drawings.

<< Method of manufacturing exterior parts for watches >>
First, the manufacturing method of the timepiece exterior part of the present invention will be described.

  In the present invention, a watch exterior part is a component part of a watch, and means a part that is visible from the outside when the watch is used. It is a concept that includes parts housed in

  Examples of watch exterior parts include cover glass (windshield), dial, hands (earthquake, minute hand, second hand, etc.), bezel, case, back cover, crown, disc hands, date wheel, day wheel, and age plate. Rotating display bodies such as

  FIG. 1 is a cross-sectional view schematically showing each step in a preferred embodiment of a method for manufacturing a watch exterior part according to the present invention, and FIG. 2 shows energy per unit area that each particle in aerosol gives to a mask. It is a figure for demonstrating the relationship with the formation location of an opening part. In the graph of (b) in FIG. 2, the vertical axis indicates the collision energy of particles contained in the aerosol, the horizontal axis indicates the coordinates, and the coordinates in FIG. 2 (b) are the coordinates in FIG. 2 (a). It corresponds.

  As shown in FIG. 1, the manufacturing method of this embodiment includes a base material preparation step (1a) for preparing a base material P1, a base layer formation step (1b) for forming a base layer P2 on the surface of the base material P1, and A mask forming step (1c) for forming the mask P6 on the base material P1 provided with the base layer P2, a film forming step (1d) for forming the coating P3, and a mask removing step (1e) for removing the mask P6. And an antireflection film forming step (1f) for forming an antireflection film P4 on the side of the substrate P1 on which the coating P3 is provided.

<Base material preparation process>
In the base material preparation step, a base material P1 is prepared (1a).

  Although the base material P1 may be comprised with what kind of material, it is preferable that it is transparent.

  Thereby, for example, the aesthetic appearance of the watch exterior part P10 can be made particularly excellent. Further, for example, in a timepiece equipped with a timepiece exterior component P10, even when the surface opposite to the surface provided with the coating P3 of the timepiece exterior component P10 is arranged to face the outer surface side, The user or the like can preferably visually recognize the coating P3, and can effectively prevent the coating P3 and the like from being damaged by friction or the like while effectively demonstrating the effects provided by the coating P3. The durability of the timepiece can be made particularly excellent. In the present specification, “the aesthetic appearance of the watch exterior part P10” means a state in which the watch exterior part P10 is incorporated in the watch in addition to the aesthetic appearance when the watch exterior part P10 is observed alone. The aesthetic appearance of the part is also included.

  The light transmittance of the substrate P1 (wavelength: 600 nm light transmittance) is not particularly limited, but is preferably 85% or more, more preferably 90% or more.

  Suitable constituent materials for the substrate P1 include, for example, sapphire glass, quartz, plastic, and the like.

  When the base material P1 is composed of a material including one or more selected from these groups, the aesthetic appearance of the watch exterior part P10 can be further improved. Further, the durability of the timepiece including the timepiece exterior component P10 can be further improved.

  The base material P1 may have a uniform composition in each part, or may have a different composition. For example, it may be composed of a laminated body in which layers having different compositions in the thickness direction are laminated, or a gradient material whose composition changes in a gradient manner.

  The substrate P1 prepared in this step may be subjected to a cleaning treatment such as water washing, alkali washing, acid washing, washing with an organic solvent, or the like.

  Moreover, the surface treatment may be performed for the purpose of improving the adhesion with the layer formed on the substrate P1.

<Underlayer formation process>
In the foundation layer forming step, the foundation layer P2 is formed on the surface of the substrate P1 (1b).

  Thereby, for example, the adhesion between the substrate P1 and the coating P3 (adhesion via the base layer P2) can be made particularly excellent. Further, for example, by making the base layer P2 function as a colored layer, the aesthetic appearance of the watch exterior part P10 can be further improved. Further, by making the underlayer P2 function as a gap layer, it is possible to obtain a three-dimensional appearance such that the coating P3 is lifted.

The average thickness of the underlayer P2 is preferably 0.01 μm or more and 10 μm or less.
Thereby, the foundation layer P2 can more effectively exhibit the functions as described above.

  The underlayer P2 may be composed of any material, and examples of the constituent material of the underlayer P2 include TiN, AlN, SiN, GaN, SiOx, SiON, AlOx, and the like. P2 is preferably composed of a material containing one or more selected from the group consisting of TiN, AlN, SiN, SiOx, SiON, and AlOx.

  As a result, adhesion between the substrate P1 and the coating P3 (adhesion through the base layer P2), particularly adhesion when the coating P3 is made of a metal material, metal oxide, or metal nitride. Can be made particularly excellent. Further, since TiN, AlN, SiN, SiOx, SiON and AlOx are materials having a high transparency as described above, it is more effective to adversely affect the appearance of the watch exterior part P10 as a whole. Can be prevented.

  In the configuration shown in the figure, the base layer P2 is formed on the entire surface of the base material P1 on which the coating P3 is provided. However, for example, the base layer P2 is selectively applied only to a portion in contact with the coating P3. It may be formed. In addition, the base layer P2 may be provided only in a part of the portion covered with the coating P3 of the substrate P1.

  In the configuration shown in the figure, one base layer P2 is formed, but two or more base layers may be formed.

  The underlayer P2 may have a uniform composition at each site or may have a different composition. For example, it may be composed of a laminated body in which layers having different compositions in the thickness direction are laminated, or a gradient material whose composition changes in a gradient manner.

  The underlayer P2 can be formed by, for example, a vapor deposition method (dry plating method) such as vacuum deposition, ion plating, sputtering, chemical vapor deposition (CVD), wet plating method, dipping, or the like.

  The underlayer P2 is formed in the same manner as the coating P3, that is, an aerosol in which particles (particles made of the constituent material of the underlayer P2) are dispersed in a gas is directed from the nozzle toward the substrate P1. A method of spraying and forming the base layer P2 by the impact force may be employed. Thereby, the foundation layer P2 can be selectively and efficiently formed at a desired site.

<Mask formation process>
Next, a mask P6 is formed on the substrate P1 provided with the foundation layer P2 (1c).

  As a constituent material of the mask P6, for example, polyolefin such as polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer (EVA), cyclic polyolefin, modified polyolefin, polyvinyl chloride, polyvinylidene chloride, polystyrene , Polyamide (eg, nylon 6, nylon 46, nylon 66, nylon 610, nylon 612, nylon 11, nylon 12, nylon 6-12, nylon 6-66), polyimide, polyamideimide, cycloolefin polymer (COP), polycarbonate (PC), poly- (4-methylpentene-1), ionomer, acrylic resin, polymethyl methacrylate, acrylonitrile-butadiene-styrene copolymer (ABS resin), acrylonitrile-styrene Copolymer (AS resin), butadiene-styrene copolymer, polyoxymethylene, polyvinyl alcohol (PVA), ethylene-vinyl alcohol copolymer (EVOH), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), Polybutylene terephthalate (PBT), polyester such as polycyclohexane terephthalate (PCT), polyether, polyether ketone (PEK), polyether ether ketone (PEEK), polyether imide, polyacetal (POM), polyphenylene oxide, modified polyphenylene oxide , Polysulfone, polyethersulfone, polyphenylene sulfide, polyarylate, aromatic polyester (liquid crystal polymer), polytetrafluoroethylene (PTFE) , Tetrafluoroethylene / perfluoroalkyl vinyl ether copolymer (PFA), polyvinylidene fluoride, other fluororesins, styrene, polyolefin, polyvinyl chloride, polyurethane, polyester, polyamide, polybutadiene, transpoly Various types of thermoplastic elastomers such as isoprene, fluororubber, chlorinated polyethylene, epoxy resin, phenol resin, urea resin, melamine resin, unsaturated polyester, silicone resin, urethane resin, and copolymers thereof A resin material etc. are mentioned, It can be used combining 1 type (s) or 2 or more types (for example, as a blend resin, a polymer alloy, a laminated body etc.).

  Among them, the constituent materials of the mask P6 include polyimide, cycloolefin polymer (COP), acrylic resin, polyethylene, polypropylene, ethylene-propylene copolymer, polyethylene terephthalate, polytetrafluoroethylene (PTFE), tetrafluoroethylene par One or more selected from the group consisting of a fluoroalkyl vinyl ether copolymer (PFA), nylon and polyethylene naphthalate (PEN) are preferred.

  Thereby, in the subsequent coating film forming step, the opening P61 is more reliably formed at the site where the coating film P3 is to be formed, and the region to be protected (the region where the coating film P3 is not to be formed) is more reliably protected. In addition, the stability, durability, and handleability (ease of handling) of the shape of the mask P6 can be made particularly excellent, and the formed film P3 has a desired shape more reliably. Can be. Moreover, the removal in the mask removal process described later becomes easy, and the productivity of the watch exterior part P10 can be made particularly excellent.

  The mask P6 may be formed on the entire surface of the member on which the coating P3 is to be formed (the base material P1 provided with the base layer in the present embodiment), but selectively in the region where the coating P3 is to be formed and in the vicinity thereof. It may be formed. Even in such a case, the area to be protected (area where the coating P3 should not be formed) can be reliably protected.

  The mask P6 is, for example, a vapor deposition method (dry plating method) such as vacuum deposition, ion plating, sputtering, chemical vapor deposition (CVD), wet plating method, inkjet method, dipping, brush coating, or the like. Can be formed.

  The thickness of the mask P6 is not particularly limited, but is preferably 5 nm or more and 10000 nm or less, and more preferably 10 nm or more and 1000 nm or less.

  Thereby, in the subsequent coating film forming step, the opening P61 is more reliably formed at the site where the coating film P3 is to be formed, and the region to be protected (the region where the coating film P3 is not to be formed) is more reliably protected. In addition, the stability, durability, and handleability (ease of handling) of the shape of the mask P6 can be made particularly excellent, and the formed film P3 has a desired shape more reliably. Can be. Moreover, the removal in the mask removal process described later becomes easy, and the productivity of the watch exterior part P10 can be made particularly excellent.

<Film formation process>
Next, a coating P3 is formed (1d).

  The coating P3 is formed by spraying an aerosol formed by dispersing particles P31 in the gas from the nozzle toward the substrate P1 through the mask P6.

  By forming the coating P3 by such a method, it is possible to provide a timepiece exterior component P10 with little waste of materials at the time of manufacture and a small load on the environment. That is, the coating P3 can be selectively formed at a desired site, and waste of materials can be effectively prevented.

  By the way, when a film is formed by simply spraying an aerosol in which particles are dispersed in a gas from a nozzle toward a substrate and depositing (adhering) the particles by the impact force, the characteristics of the method The film to be formed has a predetermined distribution in thickness. That is, in the vicinity of the center of the nozzle, the thickness of the coating increases, and a thickness distribution (bell shape) with a normal distribution that decreases rapidly toward the edge portion is obtained.

  If the coating film to be formed has such a thickness distribution, the contrast between the portion where the coating film is provided and the portion where the coating film is not provided is low. The aesthetic appearance is inferior. Such a problem occurs more remarkably when the film width is small.

  In addition, when spraying an aerosol, in which particles are dispersed in a gas, from a nozzle toward a substrate, the energy given by the particles (energy per unit area) in each part of the region where the aerosol is sprayed is generally shown in FIG. It has a distribution as shown in 2 (b). That is, the energy given by the particles is large near the center of the area where the aerosol is sprayed, whereas the energy given by the particles becomes smaller toward the outer periphery of the area where the aerosol is sprayed.

  In this embodiment, aerosol (particles P31) is sprayed through the mask P6. In such a configuration, an opening P61 is formed in a part where the collision energy of the particle P31 is equal to or greater than a predetermined value (threshold), and the real part remains in the other part without forming the opening P61. (See FIG. 2). That is, even in the region where the aerosol (particle P31) is sprayed, no opening is formed at a site where the collision energy of the particle P31 is less than a predetermined value (threshold value). In the region where the opening P61 is formed, the particles adhere to the target portion (the surface of the base layer P2 in the illustrated configuration), and the coating P3 is formed, but the region where the opening P61 is not formed. In FIG. 5, the particles P31 are deposited on the mask P6 (real part). Thus, with the threshold value as a boundary, the particle P31 has a criticality as to whether or not the particle P31 adheres to a site where the coating P3 is to be formed.

  Accordingly, the coating P3 can be suitably formed as a film having no extremely small thickness compared to other parts (thickness variation is small). As a result, the coating P3 formed at the target site has a relatively large thickness at the outer periphery, and the contrast between the site where the coating P3 is provided and the site where the coating P3 is not provided is high. be able to. As a result, the aesthetic appearance of the watch exterior part P10 finally obtained is excellent. In particular, since the contrast can be sufficiently high even in the coating film P3 having a small width, it is possible to suitably cope with the formation of the coating film P3 having a complicated pattern and a fine pattern.

  In the illustrated configuration, the case where the aerosol is sprayed from the normal direction of the base material P1 is representatively described. However, the aerosol may be sprayed from a direction inclined from the normal direction of the base material P1.

The angle formed between the normal line of the substrate P1 and the spraying direction of the aerosol is preferably 0 ° or more and 70 ° or less, and more preferably 0 ° or more and 45 ° or less.
Further, the film formation may be performed while changing the spraying direction of the aerosol.

  Examples of the constituent material of the particles P31 include various metals, various metal oxides, various metal nitrides, various metal carbides, various metal borides, various metal sulfides, various carbon materials, various pigments, various resin materials, and the like. It is done.

  Examples of the metal material constituting the particle P31 include Au, Pt, Pd, Ni, Ag, Al, Cu, Ti, Cr and alloys containing at least one of these, but Au, Cr, Cu Alternatively, an alloy containing at least one of these is preferable.

  Examples of the metal oxide constituting the particle P31 include aluminum oxide, titanium oxide, chromium oxide, and silicon oxide.

  Examples of the metal nitride constituting the particle P31 include titanium nitride, chromium nitride, zirconium nitride, hafnium nitride, tantalum nitride, and silicon nitride.

  Examples of the metal carbide constituting the particle P31 include titanium carbide, chromium carbide, zirconia carbide, aluminum carbide, calcium carbide, tungsten carbide, hafnium carbide, vanadium carbide, tantalum carbide, niobium carbide, silicon carbide, and the like.

  Examples of the metal boride constituting the particle P31 include zirconium boride and molybdenum boride.

  Examples of the metal sulfide constituting the particle P31 include zinc sulfide, chromium sulfide, cadmium sulfide and the like.

  Examples of the carbon material constituting the particle P31 include graphite, graphene, diamond, carbon nanotube, and fullerene.

  Examples of the pigment constituting the particle P31 include the following.

  That is, examples of the black pigment include carbon black such as furnace black, channel black, acetylene black, and thermal black, copper oxide, manganese dioxide, titanium oxide, aniline black, activated carbon, nonmagnetic ferrite, and magnetite.

  Examples of yellow pigments include yellow lead, zinc yellow, yellow iron oxide, cadmium yellow, chrome yellow, Hansa yellow, Hansa yellow 10G, benzidine yellow G, benzidine yellow GR, selenium yellow, quinoline yellow, and permanent yellow NCG. Is mentioned.

  Examples of the orange pigment include red chrome yellow, molybdenum orange, permanent orange GTR, pyrazolone orange, vulcan orange, benzidine orange G, indanthrene brilliant orange RK, and indanthrene brilliant orange GK.

  Red pigments include Bengala, cadmium red, red lead, mercury sulfide, watch young red, permanent red 4R, risor red, brilliantamine 3B, brilliantamine 6B, dapon oil red, pyrazolone red, rhodamine B rake, lake red C , Rose bengal, oxin red, alizarin lake and the like.

  Examples of the blue pigment include, for example, bitumen, cobalt blue, alkali blue lake, Victoria blue lake, fast sky blue, indanthrene blue BC, aniline blue, ultramarine blue, calco oil blue, methylene blue chloride, phthalocyanine blue, and phthalocyanine green. And malachite green oxalelate.

  Examples of purple pigments include manganese purple, fast violet B, and methyl violet lake.

  Examples of the green pigment include chromium oxide, chromium green, pigment green, malachite green lake, final yellow green G, and the like.

Examples of white pigments include zinc white, titanium oxide, antimony white, and zinc sulfide.
Examples of extender pigments include barite powder, barium carbonate, clay, silica, white carbon, talc, and alumina white.

  Examples of the resin material include (meth) acrylic resins, polystyrene resins, styrene- (meth) acrylic resins, rosin-modified resins, terpene resins, polyester resins, polyamide resins, epoxy resins, vinyl chloride resins, Vinyl chloride-vinyl acetate copolymer, fiber-based resin (eg, cellulose acetate butyrate, hydroxypropyl cellulose, etc.), polyvinyl butyral, polyvinyl alcohol (PVA), polyvinyl pyrrolidone (PVP), polyurethane resin, urea resin, etc. Is mentioned.

A plurality of different types of particles may be used as the particles P31.
The average particle diameter of the particles P31 is preferably 1 nm or more and 150 μm or less, and more preferably 100 nm or more and 100 μm or less.

  Thereby, the aesthetic appearance of the timepiece exterior component P10 can be made particularly excellent. Further, the adhesion between the base material P1 and the coating P3 (adhesion through the base layer P2) can be made particularly excellent, and the durability of the watch exterior part P10 can be made particularly excellent. it can. Further, the formation efficiency of the coating P3 is particularly excellent, and the productivity of the watch exterior part P10 can be particularly excellent. Further, the above-described region where the collision energy of the particle P31 is equal to or greater than the threshold value and the region where the collision energy of the particle P31 is less than the threshold value can be more suitably controlled, and the coating P3 having a more suitable shape can be easily formed. The aesthetic appearance of the watch exterior part P10 can be made particularly excellent.

  In the present specification, “average particle diameter” refers to an average particle diameter based on mass. This average particle diameter can be obtained, for example, by measuring the mobility of the aerosol and determining the aerodynamic diameter. For the measurement of the particle diameter, for example, a differential electrostatic classifier manufactured by TSI can be used. In addition, you may obtain | require an average particle diameter from the measurement result of a scanning electron microscope or a transmission electron microscope.

  The coating P3 is preferably provided selectively on a part of the observable part in the state where the watch exterior part P10 is incorporated in the watch.

  As a result, due to the effect that the coating P3 itself has a specific pattern and the effect of the combination of the portion where the coating P3 is provided and the portion where the coating P3 is not provided, the watch exterior part P10, the watch The aesthetic appearance can be made particularly excellent.

  Further, conventionally, when the watch exterior part is incorporated in the watch, the material at the time of manufacturing the watch exterior part is provided when the coating is selectively provided on a part of the observable part. However, according to the present invention, it is possible to reliably prevent the occurrence of such a problem. Therefore, when the coating P3 is selectively provided on a part of the portion that can be observed in the state where the watch exterior part P10 is incorporated in the watch, the effect of the present invention is more remarkably exhibited. .

In the state where the timepiece exterior component P10 is incorporated in the timepiece, the area ratio occupied by the portion where the coating P3 is provided among the observable portions of the timepiece exterior component P10 (the surface of the base material P1 is flat). In some cases, the area ratio when observed from the normal direction of the surface is not particularly limited, but is preferably 70% or less, and more preferably 2% or more and 50% or less.
Thereby, the effects as described above are more remarkably exhibited.

  The average thickness of the coating P3 is preferably 0.01 μm or more and 300 μm or less, more preferably 0.05 μm or more and 160 μm or less, and further preferably 0.10 μm or more and 70 μm or less.

  Thereby, the aesthetic appearance of the timepiece exterior component P10 can be made particularly excellent. Further, the durability of the watch exterior part P10 can be made particularly excellent. Further, the productivity of the watch exterior part P10 can be made particularly excellent.

The coating P3 formed in this step may have a uniform composition at each site or may have a different composition. For example, the watch exterior part P10 may have a plurality of types of coatings P3 having different textures (for example, different colors) in a predetermined pattern. Thereby, the further improvement of the aesthetic appearance of timepiece exterior component P10 can be aimed at.
The film forming apparatus used in this step will be described in detail later.

<Mask removal process>
Next, the mask P6 is removed (1e).

  Thereby, the particles P31 deposited on the mask P6 are also removed together with the mask, and a film P3 having a target shape appears. In particular, a coating P3 having a relatively large thickness near the outer periphery appears.

  The removal of the mask P6 can be performed, for example, by peeling the mask P6, dissolving the mask P6, or the like.

<Antireflection film formation process>
In the antireflection film forming step, the antireflection film P4 is formed on the side of the substrate P1 on which the coating P3 is provided (1f).

  Thereby, unintentional reflection of external light can be effectively prevented, and the aesthetic appearance of the watch exterior part P10 can be made particularly excellent.

  Further, when the watch exterior part P10 is applied to a cover glass (windshield), the effect of improving the aesthetic appearance as described above can be obtained, and the visibility of the dial can be improved. The overall aesthetic appearance can be made particularly excellent. In addition, the function as a practical product is improved, for example, the distinguishability such as time is improved.

  The antireflection film P4 can be formed by, for example, a vapor deposition method (dry plating method) such as vacuum deposition, ion plating, sputtering, chemical vapor deposition (CVD), wet plating method, dipping or the like. When the antireflection film P4 is formed by a vapor deposition method, the vapor deposition may be performed from a direction inclined by a predetermined angle from the normal direction of the substrate P1.

  The thickness of the antireflection film P4 is not particularly limited, but is preferably 0.2 μm or more and 10 μm or less, and more preferably 0.3 μm or more and 7 μm or less.

  Thereby, the functions as described above can be more effectively exhibited while effectively preventing the watch exterior part P10 from becoming larger and thicker.

  In the illustrated configuration, the antireflection film P4 is formed on the entire surface of the base material P1 on which the coating P3 is provided. For example, the antireflection film P4 is provided with the coating P3 of the base material P1. It may be selectively provided only on a part of the surface on the other side.

<Film forming device>
Next, a film forming apparatus used for forming the film P3 will be described.

  FIG. 3 is a longitudinal sectional side view showing a preferred embodiment of a coating film forming apparatus used for forming a coating film, FIG. 4 is a longitudinal sectional side view showing an example of the configuration of a crusher included in the coating film forming apparatus, and FIG. FIG. 4 is a block diagram of a main part of the film forming apparatus shown in FIG. 3. In the following, for convenience of explanation, in FIG. 3, the x axis, the y axis, and the z axis are illustrated as three axes orthogonal to each other. The x-axis is an axis along one of the horizontal directions, the y-axis is an axis along the horizontal direction and perpendicular to the x-axis, and the z-axis is a vertical direction (up and down Direction). In addition, the tip side of each illustrated arrow is a “positive side (+ side)” and the base end side is a “negative side (− side)”. Further, the upper side in FIG. 3 is referred to as “upper (upper)”, and the lower side is referred to as “lower (lower)”. Further, in FIG. 3, the illustration of the base layer P2 and the mask P6 provided on the base material P1 is omitted.

  As shown in FIGS. 3, 4, and 5, the film forming apparatus 1 includes an aerosol generator 15, a disintegrator 4, a film forming chamber 16, a connecting pipe 2, a connecting pipe 8, and a gas supply unit. 3, a pressure adjusting means 5, a displacing means 6, and a control unit 7.

  The aerosol generator 15 is configured so as to be able to maintain airtightness, and can accommodate therein particles P31 that become the coating P3.

The crusher 4 is connected to an aerosol generator 15 by a connecting pipe 8.
The crusher 4 has a function of crushing the particles P31 contained in the aerosol generated by the aerosol generator 15.

  The film forming chamber 16 is provided independently of the aerosol generator 15 and the crusher 4. The film forming chamber 16 is also configured to maintain airtightness, and the base material P1 can be accommodated therein.

  The room temperature in the film forming chamber 16 is adjusted to 25 ° C. or higher and 30 ° C. or lower by, for example, water cooling, that is, by a refrigerant passing through the piping.

  The connecting pipe 2 connects the crusher 4 and the film forming chamber 16, and the inner cavity portion 22 functions as a flow path through which the particles P <b> 31 that become the coating P <b> 3 pass.

  The connecting pipe 2 has a first opening (one end opening) 25 opened at one end thereof facing the inside of the crusher 4, and a second opening (other end opening) 21 opened at the other end. It faces the film forming chamber 16.

  With such a configuration, the aerosol generator 15 and the film forming chamber 16 communicate with each other via the connecting pipe 8, the disintegrator 4 and the connecting pipe 2.

  The particles P31 passing through the connecting tube 2 (lumen portion 22) are sprayed from the second opening 21 to the base material P1. Thereby, the film P3 is formed on the base material P1. Thus, in the connecting pipe 2, the portion on the second opening 21 side functions as the nozzle portion 24.

  The average inner diameter of the connecting tube 2 is not particularly limited, but is preferably 1 mm or more and 10 mm or less, for example. Moreover, the internal diameter of the 2nd opening part 21 is although it does not specifically limit, For example, it is preferable that they are 0.1 mm or more and 5 mm or less.

  Thereby, the conveyance property of the particle | grains P31 in the connection pipe 2 can be made especially excellent.

  Moreover, it does not specifically limit as a constituent material of the connection pipe 2, For example, metal materials, such as stainless steel, can be used.

  Moreover, it is preferable that a heating mechanism 90 for heating the connection pipe 2 is provided on the outer peripheral portion of the connection pipe 2. The heating mechanism 90 can prevent the particles P31 passing through the connecting pipe 2 from adhering to the inner peripheral portion (inner wall) of the connecting pipe 2. In addition, it does not specifically limit as heating temperature, For example, 100 to 300 degreeC is preferable and 250 to 300 degreeC is more preferable.

  As shown in FIG. 3, the gas supply means 3 supplies gas into the aerosol generator 15. In addition, it does not specifically limit as this supply amount, For example, it is preferable that they are 1 L / min or more and 90 L / min or less.

  The gas supply means 3 includes a tank 31 filled with gas, a connection pipe 32 that connects the tank 31 and the aerosol generator 15, and an electromagnetic valve 33 that is installed in the middle of the connection pipe 32.

The tank 31 can store gas in an airtight manner.
The gas stored in the tank 31 is not particularly limited. For example, nitrogen gas can be used, and other inert gas such as helium or argon can also be used. Moreover, when using what was comprised with the metal oxide as particle | grains P31, what contains oxygen can be used suitably as the said gas. Thereby, unintentional reduction of the particles P31 can be prevented.

  The tank 31 and the aerosol generator 15 are in communication with each other via a connecting pipe 32. The connecting tube 32 may be hard or flexible.

  The connecting pipe 32 is provided with an electromagnetic valve 33 in the middle of the longitudinal direction. The electromagnetic valve 33 opens and closes the connecting pipe 32. When the electromagnetic valve 33 is in the open state, the tank 31 and the aerosol generator 15 communicate with each other. Thereby, the gas is supplied from the tank 31 to the aerosol generator 15. Further, when the electromagnetic valve 33 is closed, the communication between the tank 31 and the aerosol generator 15 is blocked. Thereby, the supply of gas from the tank 31 to the aerosol generator 15 is stopped.

By supplying gas from the tank 31 to the aerosol generator 15, an aerosol is generated in which the particles P <b> 31 stored in the aerosol generator 15 are dispersed in the gas.
The aerosol generated in the aerosol generator 15 in this way is introduced into the crusher 4 through the connecting pipe 8 when the gas from the tank 31 functions as a carrier gas.

  As shown in FIG. 4, the crusher 4 includes a container 41 into which an aerosol containing particles P31 is introduced, an aerosol inlet 42 into which an aerosol containing particles P31 is introduced from a connecting pipe 8, and crushing of the particles P31. A crushing tool 43 for performing the above, an aerosol outlet 44 for leading the aerosol containing the crushed particles P31 to the connecting pipe 2, a brush 45 for removing the particles P31 when they adhere to the crushing tool 43, Gas inlets 46 a and 46 b for introducing gas into the container 41 and an ultrasonic vibration device 47 are provided.

  In the crusher 4, an aerosol inlet 42 is installed in a container 41, and a cylindrical crusher 43 is disposed at the tip of the crusher 4 so that the shaft can be rotated by a motor (not shown). The opening of the aerosol inlet 42 has a slit shape in which the cylindrical axis direction of the crushing tool 43 has a long side. The width of the slit is not particularly limited, but is preferably 1 mm or less.

  As the crushing tool 43, it is preferable that the cylindrical side surface on which the aerosol collides is made of a high hardness material such as titanium carbide.

  An aerosol outlet 44 is disposed above the crusher 43. Moreover, the brush 45 is installed so that the crushing tool 43 may be contact | connected. Gas inlets 46 a and 46 b are arranged in a space from the crushing tool 43 to the aerosol outlet 44, and an ultrasonic vibration device 47 is installed on the outer periphery of the aerosol outlet 44.

  The aerosol generated in the aerosol generator 15 is accelerated at the aerosol inlet 42 and collides with the cylindrical side surface of the crushing tool 43. Thick arrows in the figure indicate the traveling direction of the aerosol. The crushing tool 43 rotates in the clockwise direction as shown by the arrow in the figure. Therefore, the aerosol which changes the introduced position one after another collides with the cylindrical side surface of the crushing tool 43 while always changing the collision surface. Thereby, even if the aerosol generated in the aerosol generator 15 contains a relatively large amount of aggregated particles, the aggregated particles can be efficiently crushed.

  The particles P31 in the aerosol may adhere to the side surface of the cylinder to some extent, but the adhering powder is scraped off by the brush 45 and accumulated on the bottom of the container 41. Colliding with the crushing tool 43, the aggregated particles are crushed and converted into an aerosol rich in primary particles. Since the aerosol introduced from the aerosol inlet 42 obliquely collides with the cylindrical side surface of the crushing tool 43, most of the aerosol reflects along the tangential direction of the cylindrical side surface, but has a certain diffusion width. It is conceivable to collide with and adhere to the inner wall of the aerosol outlet 44. To prevent this, gas is introduced from the gas inlets 46a and 46b, and a curtain-like gas film is formed on the inner surface of the aerosol outlet 44. It is preferable to prevent the adhesion or to operate the ultrasonic vibration device 47 to vibrate the aerosol outlet 44 so that the adhesion does not proceed. The small arrows from the gas inlets 46a and 46b indicate the flow of gas introduced from here. Furthermore, it is preferable to neutralize the surface charge of the pulverized particles P31 by previously ionizing the gas to be introduced and prevent reaggregation in the aerosol.

  The aerosol converted into the primary particle-rich aerosol in this way is led to a nozzle (not shown), and thus can efficiently form a structure with no defects over a long period of time with few defects. Is possible.

  The aerosol that has been converted into a material rich in primary particles in the crusher 4 is introduced into the connecting pipe 2 and sprayed onto the base material P1 from the second opening 21. And this particle | grain P31 will collide and adhere to the base material P1, As a result, the film P3 is formed.

  The pressure adjusting means 5 makes the pressure in the film forming chamber 16 lower than the pressure in the aerosol generator 15 and the pressure in the disintegrator 4.

  By providing such a pressure adjusting means (first pressure adjusting means) 5 together with the gas supply means (second pressure adjusting means) 3 described above, the pressure between the film forming chamber 16 and the aerosol generator 15 is increased. The difference can be adjusted more suitably, and the spraying speed of the aerosol (particles P31) from the nozzle part 24 can be controlled more suitably. In addition, unintended pressure fluctuations in the film forming chamber 16 can be more effectively suppressed, and a more stable film forming environment can be maintained.

  As shown in FIG. 3, the pressure adjusting means 5 is installed in the middle of the connecting pipe 52, a pump 51 that sucks the inside of the film forming chamber 16, a connecting pipe 52 that connects the pump 51 and the film forming chamber 16. And an electromagnetic valve 53.

The pump 51 sucks the gas G ₂ in the film forming chamber 16. Due to this suction, the gas G ₂ in the film forming chamber 16 is discharged through the connecting pipe 52, so that the pressure in the film forming chamber 16 is higher than the pressure in the aerosol generator 15 and the pressure in the disintegrator 4. Definitely lower. Thus, the particles P31 can surely flow out into the film forming chamber 16, and thus the coating P3 can be reliably formed.

  The pressure in the film forming chamber 16 depends on the pressure in the aerosol generator 15 and the like, but can be, for example, less than 10 kPa when the pressure in the aerosol generator 15 is 10 kPa or more and 1 MPa or less. .

  Thereby, the injection speed of aerosol (particle P31) from nozzle part 24, etc. can be controlled more suitably.

  Further, when the pump 51 is capable of exhaust pressure up to 10 −5 Pa, the coating P3 in which the occurrence of defects is prevented can be formed at a higher deposition rate.

  Moreover, it does not specifically limit as the pump 51, For example, a turbo-molecular pump, a dry pump, a mechanical booster pump, a rotary pump etc. can be used.

  The pump 51 is connected to the film forming chamber 16 through a connecting pipe 52. The connecting pipe 52 may be hard or flexible.

  The connecting pipe 52 is provided with an electromagnetic valve 53 in the middle of its longitudinal direction. The electromagnetic valve 53 opens and closes the connecting pipe 52. When the electromagnetic valve 53 is in the open state, the inside of the film forming chamber 16 can be sucked by the suction force of the pump 51, and thus the inside of the film forming chamber 16 can be decompressed. Further, when the electromagnetic valve 53 is in a closed state, the suction force of the pump 51 is prevented from reaching the film forming chamber 16.

The displacement means 6 displaces the base material P1.
As shown in FIGS. 3 and 5, the displacement means 6 includes a stage (table) 61 on which the base material P1 is installed, an x-direction moving means 62x that translates the stage 61 (base material P1) in the x-axis direction, A y-direction moving means 62y that translates the stage 61 (base material P1) in the y-axis direction, a z-direction moving means 62z that translates the stage 61 (base material P1) in the z-axis direction, and a stage 61 (base material P1). An x-axis rotation means 63x that rotates around the x-axis, a y-axis rotation means 63y that rotates the stage 61 (base material P1) around the y-axis, and a stage 61 (base material P1) as the z-axis Z-axis rotation means 63z that rotates around is provided.

  Since the stage 61 is rotatable about the x axis, the y axis, and the z axis, the aerosol (particle P31) is suitably sprayed while changing the incident direction of the aerosol (particle P31) to the base material P1. be able to.

  In addition, if the stage 61 can be arbitrarily operated in the xy direction with respect to the nozzle portion 24, the particles P31 can be easily and surely supplied to a desired portion of the base material P1 in a desired pattern. Even the coating P3 can be easily and reliably formed.

  Further, even when the stage 61 can be arbitrarily operated in the z direction with respect to the nozzle portion 24, even if there is a relatively large unevenness on the surface of the substrate P1 (the surface on which the coating P3 is to be formed). The film can be suitably formed.

  Each operation | movement of the gas supply means 3, the pressure adjustment means 5, the displacement means 6, etc. is controlled by the control part 7, respectively. The control unit 7 is, for example, a personal computer (PC) with a built-in CPU (Central Processing Unit).

  As shown in FIG. 5, the control unit 7 includes the electromagnetic valve 33 of the gas supply means 3, the pump 51 and the electromagnetic valve 53 of the pressure adjusting means 5, the x-direction moving means 62x and the y-direction moving means 62y of the displacing means 6. , Z-direction moving means 62z, x-axis turning means 63x, y-axis turning means 63y and z-axis turning means 63z, respectively. And the control part 7 can operate these each independently. The control program is stored in advance in a storage unit (recording medium) 71 built in the control unit 7.

  The storage unit 71 includes, for example, RAM (Random Access Memory: including both volatile and nonvolatile), FD (Floppy Disk (Floppy is a registered trademark)), HD (Hard Disk), CD-ROM (Compact It is composed of a magnetic or optical recording medium such as a disc read-only memory or a semiconductor memory.

Next, the operation of the film forming apparatus 1 in the film forming process will be described in detail.
In the film forming step, as shown in FIG. 3, the stage 61 is aligned with the second opening 21 of the connecting pipe 2 so that the second opening 21 of the connecting pipe 2 faces the base material P1. Do. This alignment is performed using a CCD (Charge Coupled Device) camera based on an image captured by the CCD camera.

At this time, the pressure adjusting means 5 is operating in the film forming apparatus 1. Thereby, the pressure in the film forming chamber 16 becomes lower than the pressure in the aerosol generator 15. This state is maintained until the formation of the coating P3 on the substrate P1 is completed.
In the film forming apparatus 1, the gas supply means 3 is also operating.

  Then, the displacing means 6 is operated so that the aerosol (particle P31) collides with a desired portion of the base material P1 at a desired angle.

  As described above, the gas supply means 3, the pressure adjustment means 5, the displacement means 6, etc. are operated, so that the aerosol containing the particles P 31 generated in the aerosol generator 15 passes through the connecting pipe 2 toward the film forming chamber 16. Pass through reliably. The particles P31 can pass through the connecting pipe 2 smoothly by the carrier gas. Thereafter, the particles P31 are discharged from the second opening 21, and are sprayed and adhered to the respective bases P1 in order at a desired angle on a desired part. Thereby, the coating P3 which has a desired shape can be rapidly formed in the desired site | part of the base material P1.

  According to the method for manufacturing a timepiece exterior component of the present invention as described above, it is possible to efficiently manufacture a timepiece exterior component excellent in aesthetic appearance by a method with less waste of materials and less burden on the environment. A method for manufacturing a watch exterior part can be provided.

<< Exterior parts for watches >>
Next, the timepiece exterior component of the present invention will be described.

The timepiece exterior component of the present invention is manufactured using the above-described method of the present invention.
As a result, it is possible to provide an exterior part for a watch that is excellent in aesthetic appearance, has little waste of materials during manufacture, and has a low environmental impact.

  Hereinafter, a specific example when the exterior part for a watch of the present invention is applied to a cover glass (windshield) will be described.

  FIG. 6 is a schematic plan view showing a preferred embodiment when the timepiece exterior component of the present invention is applied to a cover glass.

  As shown in FIG. 6, the watch exterior part P <b> 10 as the cover glass is selectively provided with a coating P <b> 3 in the vicinity of the outer periphery when viewed in plan.

  In particular, in the configuration shown in FIG. 6, the film is provided in a predetermined pattern (arabesque pattern). As described above, even if the coating film P3 has a complicated pattern, according to the present invention, it is possible to obtain the coating material P3 with a small waste of material at the time of manufacture and a small environmental load.

  The timepiece exterior component is preferably arranged so that the surface on which the coating film of the base material is provided faces inward when it is incorporated in the timepiece. Thereby, unintentional peeling of the film can be prevented more effectively, and the durability of the watch can be made particularly excellent.

<< Clock >>
Next, the timepiece of the invention will be described.

The timepiece of the present invention has the timepiece exterior component of the present invention as described above.
Thereby, it is possible to provide a timepiece having an exterior part for a timepiece that is excellent in aesthetic appearance, has little waste of materials at the time of manufacture, and has a low environmental load.

  Further, the watch as a whole can have an excellent aesthetic appearance, can be made with little waste of materials during manufacture, and can have a low environmental impact.

  In addition, the timepiece of the present invention only needs to have the timepiece exterior part of the present invention as at least one timepiece exterior part, and other parts may be known ones, Next, an example of the configuration of the timepiece of the present invention will be described.

FIG. 7 is a cross-sectional view showing a preferred embodiment of the timepiece (watch) of the present invention.
As shown in FIG. 7, a wristwatch (portable watch) P100 of the present embodiment includes a trunk (case) P82, a back cover P83, a bezel (edge) P84, and a glass plate (cover glass) P85. . Further, in the case P82, a timepiece dial plate P7, a solar battery P94, and a movement P81 are housed, and a hand (pointer) (not shown) and the like are housed.

  The glass plate P85 is usually made of highly transparent transparent glass, sapphire, or the like. As a result, the visibility of the timepiece dial P7, hands, etc. can be made sufficiently excellent, and a sufficient amount of light can be made incident on the solar cell P94.

Movement P81 drives the pointer using the electromotive force of solar cell P94.
Although omitted in FIG. 7, in the movement P81, for example, an electric double layer capacitor for storing the electromotive force of the solar battery P94, a lithium ion secondary battery, a crystal oscillator as a time reference source, and a crystal vibration A semiconductor integrated circuit that generates a driving pulse for driving a clock based on the oscillation frequency of the child, a step motor that drives the pointer every second in response to this driving pulse, and a wheel that transmits the movement of the step motor to the pointer A row mechanism is provided.

  The movement P81 includes a radio wave receiving antenna (not shown). And it has the function to perform time adjustment etc. using the received electromagnetic wave.

  The solar cell P94 has a function of converting light energy into electric energy. The electric energy converted by the solar battery P94 is used for driving the movement.

  In the solar cell P94, for example, a p-type impurity and an n-type impurity are selectively introduced into a non-single-crystal silicon thin film, and a p-type non-single-crystal silicon thin film and an n-type non-single-crystal silicon thin film It has a pin structure provided with an i-type non-single-crystal silicon thin film with a low impurity concentration in between.

  A winding stem pipe P86 is fitted and fixed to the trunk P82, and a shaft portion P871 of a crown P87 is rotatably inserted into the winding stem pipe P86.

  The body P82 and the bezel P84 are fixed by a plastic packing P88, and the bezel P84 and the glass plate P85 are fixed by a plastic packing P89.

  Further, a back cover P83 is fitted (or screwed) to the body P82, and a ring-shaped rubber packing (back cover packing) P92 is inserted in a compressed state at the joint (seal part) P93. Has been. With this configuration, the seal portion P93 is sealed in a liquid-tight manner, and a waterproof function is obtained.

  A groove P872 is formed on the outer periphery of the shaft portion P871 of the crown P87, and a ring-shaped rubber packing (crown packing) P91 is fitted in the groove P872. The rubber packing P91 is in close contact with the inner peripheral surface of the winding stem pipe P86 and is compressed between the inner peripheral surface and the inner surface of the groove P872. With this configuration, the space between the crown P87 and the winding stem pipe P86 is sealed in a liquid-tight manner to obtain a waterproof function. When the crown P87 is rotated, the rubber packing P91 rotates together with the shaft portion P871 and slides in the circumferential direction while being in close contact with the inner peripheral surface of the winding stem pipe P86.

  In the above description, a wristwatch (portable clock) as a solar radio timepiece has been described as an example of a clock. Can be applied similarly. Further, the present invention can be applied to any timepiece such as a solar timepiece excluding a solar radio timepiece and a radio timepiece excluding a solar radio timepiece.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above.

  For example, in the timepiece exterior part and timepiece of the present invention, the configuration of each part can be replaced with any configuration that exhibits the same function, and any configuration can be added.

  In the above-described embodiment, the case where the watch exterior part includes a base layer and an antireflection film in addition to the base material and the coating has been mainly described. What is necessary is just to be provided with a film, and the thing which is not provided with the base layer and the antireflection film may be sufficient.

  Moreover, in the manufacturing method of the timepiece exterior component of the present invention, a pretreatment process, an intermediate treatment process, and a posttreatment process may be performed as necessary.

  In the above-described embodiment, a single nozzle is used. However, in the present invention, a plurality of nozzles may be used.

  In the above-described embodiment, the film is formed while the base material is displaced. However, the film may be formed while the nozzle for injecting the aerosol is displaced.

  In the above-described embodiment, the case where the film is formed by using separately prepared particles has been mainly described. However, in the present invention, particles generated in the apparatus (obtained by condensing gas). The film may be formed using particles.

  Moreover, although embodiment mentioned above demonstrated as a film forming apparatus having a crusher, you may use what does not have a crusher for formation of a film.

  Moreover, although embodiment mentioned above demonstrated as a film forming apparatus provided with the heating mechanism which heats a connecting pipe, you may use the thing which is not provided with the said heating mechanism for formation of a film.

P100 …… Watch (portable watch)
P10: Watch exterior parts P1: Base material P2: Underlayer P3: Coating P31: Particles P4: Antireflection film P6: Mask P61: Opening P7: Watch dial P81: Movement P82 …… Body (Case)
P83 …… Back cover P84 …… Bezel (edge)
P85 …… Glass plate (cover glass)
P86 ... Winding pipe P87 ... Crown P871 ... Shaft P872 ... Groove P88 ... Plastic packing P89 ... Plastic packing P91 ... Rubber packing (Crown packing)
P92 …… Rubber packing (back cover packing)
P93 …… Joint part (seal part)
P94 …… Solar cell 1 …… Film forming device 2 …… Connecting pipe 21 …… Second opening (other end opening)
22 …… Luminous part 24 …… Nozzle part 25 …… First opening (one-end opening)
3. Gas supply means 31 ... Tank 32 ... Connecting pipe 33 ... Solenoid valve 4 ... Crusher 41 ... Container 42 ... Aerosol inlet 43 ... Crusher 44 ... Aerosol outlet 45 ... ... Brush 46a ... Gas inlet 46b ... Gas inlet 47 ... Ultrasonic vibration device 5 ... Pressure adjusting means 51 ... Pump 52 ... Connecting pipe 53 ... Solenoid valve 6 ... Displacement means 61 ... Stage (table)
62x …… x direction moving means 62y …… y direction moving means 62z …… z direction moving means 63x …… x axis turning means 63y …… y axis turning means 63z …… z axis turning means 7 ... ... Control part 71 ... Storage part (recording medium)
8 ...... connecting pipe 15 ...... aerosol generator 16 ...... deposition chamber 90 ...... heating mechanism G ₂ ...... gas

Claims (8)

Forming a mask on the substrate;
An aerosol in which particles are dispersed in a gas is sprayed from a nozzle through the mask toward the base material, and a part of the mask that is in contact with the particles is removed by the impact force of the aerosol. Forming a coating on the substrate by forming an opening in the mask and forming a coating on which the particles are deposited;
And a mask removing process for removing the mask.   The mask is polyimide, cycloolefin polymer (COP), acrylic resin, polyethylene, polypropylene, ethylene-propylene copolymer, polyethylene terephthalate, polytetrafluoroethylene (PTFE), tetrafluoroethylene / perfluoroalkyl vinyl ether copolymer. The method for manufacturing a watch exterior part according to claim 1, wherein the watch exterior part is made of a material containing one or more selected from the group consisting of (PFA), nylon and polyethylene naphthalate (PEN).   The method for manufacturing a watch exterior part according to claim 1 or 2, wherein the mask has a thickness of 5 nm to 10,000 nm.   4. The watch exterior part manufacturing method according to claim 1, further comprising a base layer forming step of forming at least one base layer on the surface of the base material prior to the film forming step. 5.   The timepiece exterior component according to claim 4, wherein a layer made of a material including one or more selected from the group consisting of TiN, AlN, SiN, SiOx, SiON, and AlOx is formed as the underlayer. Manufacturing method.   The method for manufacturing a watch exterior part according to any one of claims 1 to 5, further comprising an antireflection film forming step of forming an antireflection film after the coating formation step.   A timepiece exterior part manufactured using the manufacturing method according to any one of claims 1 to 6.   A timepiece comprising the timepiece exterior component according to claim 7.

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