JP2021165031A - Decorative mirror manufacturing method and decorative mirror - Google Patents

Abstract

To provide a decorative mirror that has a high-quality image printed in color on the surface of a glass.SOLUTION: Provided is a decorative mirror that has a transparent or translucent primer layer 3 printed on a glass substrate 1, an ultraviolet curable white ink layer 4 partially printed on the primer layer 3, an ultraviolet curable color ink layer 5 laminated on the entire surface of the white ink layer 4 and the exposed-state primer layer 3, and a reflective layer 2 provided on the entire back surface of the glass substrate, and in which the glass substrate contains silicon dioxide by 60 to 80 Wt% and calcium oxide by 2 to 20 Wt% as constituent material, and the glass substrate has a nominal thickness of 0.3 mm to 8 mm.SELECTED DRAWING: Figure 1

Description

The present invention relates to a decorative mirror in which a high-quality image is color-printed on a glass surface, and a method for manufacturing the same.

American cafes and bars are often decorated with ornaments called PUB MIRROR. Here, a pub mirror is an ornament in which a picture or a character is drawn on the surface of the mirror, and by hanging it on a wall or decorating it on a shelf, it creates a fashionable shop atmosphere.

On the other hand, this kind of product is becoming widespread in Japan as well, and it is attracting attention not only for decorating restaurants and taverns, but also for individuals as a product that depicts their favorite anime characters.

Jikkai Sho 57-142971 Japanese Unexamined Patent Publication No. 2016-106674 Japanese Unexamined Patent Publication No. 10-127449 Utility Model Registration No. 3182102 Japanese Unexamined Patent Publication No. 06-030832

However, it is not easy to fix pictures and characters on the glass, and there is a drawback that the ink on the glass surface is easily peeled off. Therefore, in general, a method of printing a picture or characters on the back surface of the glass (Patent Documents 1 to 2) or attaching a printed sheet or the like to the glass surface is adopted (Patent Documents 3 to 4).

There is also a document describing a technique for thermally transferring an image on the glass surface side (Patent Document 5). However, in the present invention, in order to leave a glass exposed portion where the mirror surface is exposed, it is necessary to partially attach a masking film coated with an adhesive to the glass surface prior to the primer step. It is not possible to make fine patterns such as.

Further, in the first place, in the present invention, the image thermally transferred from the transfer sheet on which the image of wood grain or stone grain is printed is merely a simple repetitive decoration that colors the circumference of the mirror surface, lacks impact, and is a mirror plate. It does not use thickness to express a three-dimensional effect.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a decorative mirror in which a high-quality image is color-printed on a glass surface, and a method for manufacturing such a decorative mirror.

In order to achieve the above object, the method for producing a decorative mirror according to the present invention contains _{60 to 80 Wt% of silicon dioxide (SiO 2) and 2 to 20} Wt% of calcium oxide (CaO) as constituent materials, and the plate thereof. A polishing step of polishing the surface of a glass substrate having a nominal thickness of 0.3 mm to 8 mm to an arithmetic average roughness Ra = 0.0007 to 0.0025 μm, and a polishing step of polishing the surface of the glass substrate after the first step, Prior to the primer step of forming a transparent or translucent primer layer and the color printing step, a base step of partially printing white ink and curing it with ultraviolet rays to make a main part of the design white. And a color printing step of printing a color ink on a glass surface or a base layer that has undergone the primer step and curing it with ultraviolet rays.

Further, the present invention is a transparent or translucent primer layer printed on a glass substrate polished to an arithmetic average roughness Ra = 0.0007 to 0.0025 μm, and partially printed on the primer layer. A decorative mirror composed of a white ink layer made of ultraviolet curable ink, the entire surface of the white ink layer, and a color ink layer made of ultraviolet curable ink printed on the exposed primer layer. The glass substrate contains _{60 to 80 Wt% of silicon dioxide (SiO 2) and 2 to 20} Wt% of calcium oxide (CaO) as constituent materials, and the plate thickness thereof is a nominal value of 0.3 to 8 mm. It is characterized by that.

Although not particularly limited, in the present invention, the base process and the color printing process are preferably performed using one or a plurality of inkjet printers. More preferably, the primer step is also performed using an inkjet printer.

By inkjet printing the primer, an exposed portion of the glass mirror surface (that is, an exposed portion of the glass) in which the primer layer does not exist can be arbitrarily formed. That is, by inkjet printing the primer, it is possible to form an exposed glass portion having an arbitrary shape even if it is a fine and complicated pattern such as a character or a logo.

Generally, in an inkjet printer, ink that has become fine particles due to pressure or heat is sprayed onto a printing substrate. Suitable. The UV-cured ink preferably has a pencil hardness of about 3H based on JIS K-5400 8.4.

In any case, in the present invention, since the glass substrate is polished by providing a polishing step, it is possible to reliably remove long-distance oil stains and hand stains that cannot be recognized by the naked eye, and the final finish is significantly good. Be transformed. If the polishing step is not provided, stains that cannot be recognized by the naked eye may be lifted due to the influence of the ink printed thereafter.

Further, in the present invention, since the base process for whitening the main part area in the design is provided prior to the color printing step, the silhouette of the main part area in the design is formed on the back surface of the glass through the thickness of the glass plate. As a result, there is an effect that the main part area appears to be slightly raised.

Here, when a decorative mirror is formed from a single glass substrate as in the first embodiment, the second embodiment, and the fourth embodiment, the glass plate thickness is a nominal value of 2 mm (measured value 1. If it is thinner than 7 to 2.3 mm), the lifting effect is slightly lacking and there is a problem in strength. On the other hand, if the glass plate thickness is 8 mm or more, the weight becomes heavy and it becomes a little unnatural. ..

Therefore, when a decorative mirror is formed from a single glass base material, the glass plate thickness has a nominal value of 3 mm (measured value of about 2.7 mm to 3.3 mm) or a nominal value of 5 mm (measured value of 4.7 mm). A glass plate thickness (about 5.3 mm) is preferable, and a glass plate thickness with a notarized value of about 2.0 mm to 8.0 mm, and optimally a nominal value of about 3 mm should be selected.

On the other hand, when the first base material and the second base material are polymerized to form a decorative mirror as in the third embodiment and the fifth embodiment, the first base material reinforces the second base material. From the viewpoint of weight reduction, the plate thickness of the glass base material should be 2 mm or less (preferably 1 mm or less), and the plate thickness can be reduced to about 0.3 mm.

The white ink is not particularly limited, but one containing 40 to 60 Wt% of a photosensitive resin, 10 to 20 Wt% of an acrylic acid ester, and 5 to 10 Wt% of a phosphine oxide derivative is preferably selected. Here, examples of the acrylate ester include ethyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, and 2-hydroxyethyl acrylate. ) And the like can be preferably exemplified.

In addition, the white ink should preferably contain titanium oxide as a pigment. However, since the white ink having this composition is inferior in adhesion to glass, it is essential to provide a primer layer on the glass base material from the viewpoint of preventing peeling off. The point that the adhesiveness to glass is inferior is the same not only for white ink but also for other color inks.

The primer is not particularly limited as long as it is a material having excellent adhesion to glass, but preferably, the total amount of the acrylic acid ester, the photosensitive resin, and the phosphine oxide derivative is 98 to 99.9 Wt%. The one is selected. It is also preferable to further contain a polymerization inhibitor.

In any case, the primer layer should be transparent or translucent, and since the primer layer is transparent or translucent, the design essential area drawn on the base layer and the base layer are not provided. It is possible to make a difference in transparency from the background part in the design. That is, since the background portion that can be seen through slightly and the main part region that cannot be seen through are clearly distinguished visually, the main part region is more clearly appealed. The main part area is, for example, a display area for an animated character or the like, and is preferably located substantially in the center of the glass surface, and the periphery thereof is a background part.

The film thickness of the white ink is not particularly limited, but is preferably 20 μm to 50 μm, and more preferably about 30 μm. By providing a film thickness of this degree, it is possible to prevent the color of the subsequent color ink from being transparent to the glass, and to make the finish of the color printing surface more natural.

In general, it is preferable to print the white ink directly on the primer layer, but it is not prohibited to print the white ink on the black layer or the color layer printed on the primer layer. Here, when the white ink is printed directly on the primer layer, a white silhouette is formed on the back surface of the glass, but by printing the black ink on the primer layer, a black silhouette can be formed on the back surface of the glass.

However, when the color ink is printed by the inkjet method in order to realize the original design by superimposing it on the black ink layer for forming the black silhouette, the color ink particles get into the fixed black ink particles. The color becomes dull and the finish is not good. Therefore, in this case, the color ink should be printed in order to realize the original design after providing one or two layers of white ink having a film thickness of about 30 μm on top of the black ink layer.

Similarly, by printing the color ink on the primer layer, a silhouette similar to that on the front surface side may be formed on the back surface of the glass. However, even if the design is the same, if the color inks are printed in duplicate, the outline of the image becomes unclear. Therefore, a white ink layer having a thickness of about 30 μm is layered on the color print layer printed on the primer layer, or After providing two layers, color ink should be printed to realize the original design.

As described above, in the present invention, in addition to the embodiment in which the white ink is directly printed on the primer layer to form a white silhouette on the back surface of the glass, the black ink is printed on the primer layer to form a black silhouette, and Color ink can also be printed on the primer layer to form a silhouette similar to the surface side. However, when the manufacturing cost and the finish are comprehensively evaluated, it is generally optimal to print the white ink layer directly on the primer layer.

In any case, in the present invention, a color image is printed on the glass surface except for the exposed glass portion through the color printing step. That is, when the glass surface is viewed in a plan view at the timing before color printing, the glass surface is divided into a primer layer, a base layer on which white ink or the like is printed on the primer layer, and a glass exposed portion in which no primer is present. However, a color image is printed on the primer layer and the base layer excluding the exposed glass portion.

Here, the film thickness of the color ink should also be 20 μm to 50 μm, and more preferably about 30 μm.

The color inks used in the color printing process include at least cyan, magenta, yellow, and black inks. These inks are not particularly limited as long as they are ultraviolet (UV) curable inks, but the cyan inks include 1 to 20 Wt% of photosensitive resin, 60 to 90 Wt% of acrylic acid esters, and 1 to 20 Wt of phosphine oxide derivative. A material containing% as a main component and 1 to 5% of a pigment is preferably selected. Here, the pigment is preferably a copper compound. In addition, it should contain a photopolymerization initiator and a polymerization inhibitor.

The photopolymerization initiator is a component that generates an active species by receiving light to initiate a polymerization reaction of a photopolymerizable monomer, and examples thereof include a radical photopolymerization initiator and a cationic photopolymerization initiator. Further, in the present invention, by containing a polymerization inhibitor, the polymerization of the photopolymerizable monomer can be suppressed at a high level, and the storage stability and stability of the ink can be improved.

The above points also apply to magenta inks and yellow inks, and these inks should preferably contain a photopolymerization initiator and a polymerization inhibitor. Further, the main components are photosensitive resin 1 to 20 Wt%, acrylic acid esters 60 to 90 Wt%, and phosphine oxide derivative 1 to 20 Wt%. Magenta ink contains 1 to 5% magenta colorant, and yellow ink contains 1 to 5% magenta colorant. , Those containing a pigment of a nickel compound are preferably selected.

The black ink contains 1 to 5% carbon black as a coloring material, and preferably contains a photopolymerization initiator and a polymerization inhibitor. Further, it is preferably composed of 1 to 10 Wt% of a photosensitive resin, 60 to 90 Wt% of acrylic acid esters, and 5 to 10 Wt% of a phosphine oxide derivative.

An appropriate protective layer or antireflection layer may be provided on the entire surface of the glass after the color printing process. However, in order to increase the color gloss and luster of the entire design, printing a gloss material having a film thickness of 30 μm on the entire glass surface is effective as a substitute for the protective layer. Here, the gloss material is also preferably of the ultraviolet curable type, and the hardness after the ultraviolet cure is preferably about 3H in the pencil hardness based on JIS K-5400 8.4.

The glass base material is _{not particularly limited as long as it contains 60 to 80 Wt% of silicon oxide (SiO 2) and 2 to 20} Wt% of calcium oxide (CaO), but is preferably silicon oxide (SiO ₂ ) 60. ~ 80 Wt%, Aluminum (Al ₂ O ₃ ) 0-7 Wt%, Calcium Oxide (CaO) 2-18 Wt%, Magnesium Oxide (MgO) 0-8 Wt%, Sodium Oxide (Na ₂ O) and Potassium Oxide (K ₂₎ A glass material having a total amount of O) of 5 to 25 Wt% should be used.

Here, the content of iron oxide (Fe ₂ O ₃ ) should be suppressed to 1 Wt% or less, and if the content is suppressed to 0.05 Wt% or less, a product with high transmittance and a higher sense of quality is manufactured. can do.

By the way, in order to enhance the sense of quality, it is preferable to provide a transfer step of thermally transferring the metal foil to a necessary position after the color printing step. In this case, the metal foil sheet to which the metal foil is uniformly adhered is placed on top of the color ink layer, and the metal foil is thermally transferred by irradiating the metal foil sheet with laser light in a spot shape. It will be. It is also preferable to transfer the metal foil based on heat and pressure instead of the laser beam. In these cases, since the color ink layer is already laminated on the glass base material, the metal foil can be thermally transferred.

According to the above-described invention, it is possible to realize a decorative mirror in which a high-quality image is color-printed on a glass surface.

It is a drawing explaining 1st Example. It is a drawing explaining the 2nd Embodiment. It is a drawing explaining the 3rd Embodiment. It is a drawing explaining the 4th Embodiment. It is a drawing explaining the 5th Embodiment.

Hereinafter, the method for manufacturing the decorative mirror of the examples will be described in more detail, but the specific description content is not limited to the present invention. First, FIG. 1 (a) is a flow chart schematically showing a manufacturing method according to the first embodiment, and FIGS. 1 (b) and 1 (c) are glass base materials showing the middle of the manufacturing process. It is a cross-sectional view.

FIG. 1A describes a manufacturing process after a reflective layer made of aluminum or silver is formed on the back surface of glass. The reflective layer is formed by, for example, vacuum deposition, and FIG. 1B shows a glass base material 1 provided with the reflective layer 2.

The plate thickness of the glass base material 1 is not particularly limited, but preferably a nominal value of 3 mm (actual measurement value of about 2.7 mm to 3.3 mm) is selected. Such a glass substrate is brush-washed with warm water to remove surface stains (ST10), and then cut into an appropriate size (ST11). The cutout size is not particularly limited, but preferably A2 (420 x 594 mm), A3 (297 x 420 mm), A4 (210 x 297 mm), and B5 (182 x 257 mm) sizes are selected.

When the above cutting process (ST11) is completed, polishing and cleaning with cesium is executed (ST12). Specifically, the glass surface to be the printing surface is polished using cerium oxide particles having a particle size of about 1.2 to 1.4 μm. As a result of this polishing process, the glass fine powder generated in the cutting process, including the deposits on the glass surface, is completely removed. It also completely removes hand stains and other oil stains.

The arithmetic mean roughness (Ra) of the glass surface after polishing is about 0.0007 to 0.0025 μm, preferably 0.0011 to 0.0020 μm, and more preferably 0.0011 to 0.0016 μm. Will be done.

Subsequently, a transparent primer layer 3 is provided on a flatly polished glass substrate to a film thickness of about 30 μm (ST13). The primer liquid may be applied or sprayed on the glass surface of the plummer, but in order to leave a finely patterned glass exposed portion, it is preferable to print the primer by inkjet printing. In this embodiment, the processes of steps ST13 to ST15 and steps ST17 are executed using an inkjet printer.

Next, the color image manuscript on which the animation character or the like is drawn is appropriately color-corrected, and the main part area on which the character or the like is drawn is poured out from the color-corrected image manuscript. Then, the image data for specifying the main part area is supplied to the printer, and the printer is instructed to print the main part area with white ink.

As a result, a white base layer 4 of about 30 μm is formed in the main part region of the glass surface provided with the primer layer 3 (ST14). In the process of this step ST14, an ultraviolet curable white ink is used, and after the main part region is inkjet printed in white, the main part region is quickly cured by ultraviolet rays by irradiating with ultraviolet rays.

Subsequently, by supplying the image data of the color-corrected image document composed of the main part region and the background region to the printer, the glass surface divided into the base layer 4 and the primer layer 3 (however, the glass is exposed). The original image is color-printed on (excluding the part) (ST15). In color printing, cyan, magenta, yellow, and black inks are used, all of which are UV curable inks.

Then, after each part is inkjet printed in an appropriate color, the color ink is quickly cured by ultraviolet rays by irradiating with ultraviolet rays. The color ink layer 5 also has a film thickness of about 30 μm, and FIG. 1C shows a cross section of the glass base material after the treatment in step ST15.

Subsequently, the metal foil is thermally transferred to the ultraviolet-cured color ink (ST16). Specifically, the glass base material after the treatment in step ST15 is placed in the thermal transfer machine, and the metal foil sheet is placed at the place where the metal foil should be transferred. Then, by sending the position data indicating the transfer position from the personal computer, the laser beam is irradiated to the required portion, and the metal foil of the metal foil sheet is thermally transferred to the color ink (ST16).

Although not particularly limited, characters, symbols, logos, etc. are drawn close to any of the four vertices of the glass surface by thermal transfer of the metal foil.

Finally, an inkjet printer is used to print the gloss material to increase the gloss (ST17). When gloss is not required, an appropriate protective layer is provided instead of the gloss layer. The hardness of the gloss layer and the protective layer is about 3H in the pencil hardness based on JIS K-5400 8.4.

As described above, in the first embodiment, the primer step (ST13) and the base step (ST14) are provided prior to the color printing step (ST15), so that the silhouette of the main part region in the design is formed through the glass plate thickness. Is formed on the back surface of the glass, and as a result, there is an effect that the main part area appears to be slightly raised. Further, since the polishing step (ST12) is provided first, there is no possibility that an unintended pattern emerges.

Although the embodiment in which the base layer 4 which is the main part region is white has been described above, it is also preferable to make the base layer black or to have the original color. FIG. 2 is a flow chart for explaining the second embodiment.

The processing of steps ST10 to ST13 is the same as in the case of the first embodiment, but in the base printing step (ST14), the base layer, which is a main part region, is divided into a silhouette layer 6 and a white layer 4.

That is, first, black ink or color ink is printed to form a silhouette layer 6 in a main part area on which a character or the like is drawn, and then white ink is printed so as to cover the silhouette layer 6. The white layer 4 is formed. When each ink layer is about 30 μm, white ink particles enter into the gaps between black or various color ink particles, resulting in a dull color such as gray. Therefore, it is preferable that the white layer 4 is provided in a double layer so that the white layer 4 is completely formed without dullness.

After the white base layer 4 is formed in this way, the base layer 4 and the primer are supplied to the printer by supplying the image data of the color-corrected image document composed of the main part region and the background region to the printer. The image original is color-printed on the glass surface (excluding the exposed glass portion) divided into layers 3 (ST15). Then, the subsequent processing is the same as in the case of the first embodiment. In this embodiment, there is an effect that a black or natural color silhouette of the main part area in the design is formed on the back surface of the glass through the thickness of the glass plate.

As described above, in the first embodiment and the second embodiment, the reflective layer 2 is provided on the back surface side of one glass substrate, while the color printing layer (3, 4, 5, 6, etc.) is provided on the front surface side thereof. However, there is no particular limitation.

For example, as shown in FIG. 3, a first base material BS1 having a reflective layer 2 on the front surface or a back surface (see FIG. 3A) and a second base material BS2 not provided with a reflective layer (FIG. 3 (b)). ) And, and after providing a color printing layer (3 to 5 or 3 to 6, etc.) on the front surface or the back surface of the second base material BS2, the first unit is applied to the color printing layer of the second base material BS2. It is also preferable to adopt a structure in which the materials BS1 are stacked (see FIG. 3C). In this third embodiment, the second base material BS2 is a glass material, but the first base material BS1 is not necessarily limited to a glass material and may be a plastic material.

In this third embodiment, not only can a deep color printing surface be expressed, but also the color printing surface is not exposed, so that there is an advantage that the color printing surface is surely protected. From the viewpoint of protecting the printed surface, the configuration of Patent Document 2 can be adopted, but in this case, a reflective layer is vacuum-deposited on the printed surface of the glass substrate that has undergone the printing steps (ST10 to ST17). In the process of doing so, defective parts due to stains adhering to the printed surface may occur in the reflective layer, and the yield rate drops. On the other hand, in the third embodiment, since the glass base material BS1 can be reliably polished prior to the vacuum deposition of the reflective layer (see ST3 in FIG. 1A), problems that occur in the reflective layer can be prevented. can.

In the third embodiment shown in FIG. 3, as the first base material BS1 and the second base material, preferably, the above-mentioned suitable glass material, that is, silicon oxide (SiO ₂ ) 60 to 80 Wt%, aluminum oxide ( Al ₂ O ₃ ) 0 to 7 Wt%, calcium oxide (CaO) 2 to 18 Wt%, magnesium oxide (MgO) 0 to 8 Wt%, sodium oxide (Na ₂ O) and potassium oxide (K ₂ O) total amount 5 to 5 25 Wt% glass material is used.

However, as the first base material BS1 and the second base material BS2, a glass material having a composition other than the above may be used, and for the first base material BS1, a plastic material may be used instead of the glass material. .. By using a plastic material for the first base material BS1, the weight can be reduced as compared with the case of using a glass base material, and the glass second base material BS2 is reinforced by the plastic first base material BS1. This has the advantage of being hard to break.

Therefore, when a glass material is used, the plate thickness of the second base material BS2 and / or the first base material BS1 is preferably about 0.3 mm to 1.0 mm. This point also applies to the fifth embodiment described below.

In the third embodiment, when a plastic material is used for the first base material BS1, a plastic material having a film mirror attached to one of the front and back surfaces or a plastic material having a specular reflection layer 2 vapor-deposited on one of the front and back surfaces. It is preferable to use. Here, the film mirror means, for example, a mirror-finished polyester film.

Examples of plastic materials include ABS resin (Acrylonitrile butadiene styrene), which has excellent rigidity, chemical resistance, and heat resistance, PET resin (polyethylene terephthalate), which has excellent transparency, toughness, rigidity, and heat resistance, and polymethyl methacrylate. In particular, an acrylic resin having excellent transparency and durability, such as the resin PMMA (Polymethylcrylic), can be preferably exemplified.

Further, regardless of whether the first base material BS1 is made of glass or plastic, the contact surface between the first base material BS1 and the second base material BS2 does not necessarily have to be fixed by adhesion or the like. In the case of not immobilizing, the peripheral edges of the two superposed base materials BS1 and BS2 may be held by an appropriate holding portion FIX (see FIG. 3C). It may be directly held by a frame or other member, but in any case, when a glass material is used as the first base material BS1, the plate thickness t1 of the first glass base material BS1 is set to the second glass base material. It is preferable to suppress the overall glass plate thickness t1 + t2 to about 2 mm to 5 mm by making it thinner than the plate thickness t2 of BS2.

By the way, from the viewpoint of weight reduction, it is also preferable to use a mirror-processed polyester film (film mirror) as the first base material BS1. FIG. 4 shows the fourth embodiment, and shows a configuration in which the first base material BS1 called a film mirror is attached to the printing surface of the second base material BS. In addition, in order to reduce the weight and ultimately increase the breaking strength, a plastic material such as an acrylic resin may be used for the second base material BS2.

Further, the first base material BS1 shown in FIG. 3 (a) and the second base material BS2 shown in FIG. 3 (b) do not necessarily have to be overlapped with each other in the state of FIG. 3 (c), and the stacking direction is changed. It may be reversed. FIG. 5 shows a fifth embodiment showing such a configuration, in which the second base material BS2 functions as a decorative mirror, while the first base material BS1 has an advantage of functioning as a normal mirror.

1 Glass substrate 2 Reflective layer 3 Primer layer 4 White ink layer 5 Color ink layer

Claims (10)

Arithmetic the surface of a glass substrate containing 60 to 80 Wt% of silicon dioxide (SiO _{2) and 2 to 20} Wt% of calcium oxide (CaO) as constituent materials and having a plate thickness of 0.3 mm to 8 mm. A polishing step of polishing to an average roughness Ra = 0.0007 to 0.0025 μm, and
A primer step of forming a transparent or translucent primer layer on the surface of the glass substrate after the first step,
Prior to the color printing process, a base process that partially prints white ink and cures it with ultraviolet rays to make the main part of the design white.
A method for manufacturing a decorative mirror, comprising a color printing step of printing color ink on a glass surface or a base layer that has undergone the primer step and curing the color ink with ultraviolet rays. The manufacturing method according to claim 1, further comprising a back surface step of providing a reflective layer on the back surface of the glass substrate or another auxiliary substrate. The manufacturing method according to claim 2, further comprising an additional step of laminating the auxiliary base material on the glass base material that has undergone the color printing step and integrally holding the auxiliary base material. The production method according to claim 1, further comprising a polymerization step of fixing a reflective sheet on the surface side of the glass substrate that has undergone a color printing step. The method for manufacturing a decorative mirror according to any one of claims 1 to 4, wherein in the color printing step, a character is drawn in the main part area. The method for manufacturing a decorative mirror according to any one of claims 1 to 5, further comprising a foil forming step of fixing a metal foil at an appropriate position on a glass surface after a color printing step. The method for manufacturing a decorative mirror according to any one of claims 1 to 6, further comprising a final step of printing a polish on a glass surface. The method for manufacturing a decorative mirror according to claim 2 or 3, wherein the auxiliary base material is made of a plastic material or a glass material. A transparent or translucent primer layer printed on a glass substrate polished to an arithmetic mean roughness Ra = 0.0007 to 0.0025 μm, and
A white ink layer made of UV-curable ink partially printed on the primer layer,
A color ink layer made of ultraviolet curable ink printed on the entire surface of the white ink layer and the exposed primer layer, and
It is a decorative mirror constructed with
The glass substrate contains _{60 to 80 Wt% of silicon dioxide (SiO 2) and 2 to 20} Wt% of calcium oxide (CaO) as constituent materials, and the plate thickness thereof is a nominal value of 0.3 to 8 mm. A characteristic decorative mirror. The decorative mirror according to claim 9, wherein a metal foil is partially thermally transferred to the color ink layer.

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