JP2925059B2 - How to make a mirror with a magnifying glass - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mirror provided with a magnifying mirror provided in a bathroom, a toilet, a restroom, and the like.

[0002]

2. Description of the Related Art Japanese Utility Model Publication No. 36-23819 discloses that a uniconvex lens is bonded and fixed to an appropriate position on the back surface of a base glass and a layer containing a silver mirror film is formed on the entire back surface including the bonded portion. A wall-mounted mirror is disclosed.

As shown in the enlarged cross-sectional views of FIGS. 5A and 5B attached to the present invention, such mirrors are manufactured by: 1) bonding a uniconvex lens 3 to an appropriate position on the back surface of the base glass 2 with an adhesive 5
2) Removing and shaping the adhesive exposed portions 6 and 6 around the lens with a knife or the like (6 ', 6' in the figure), and 3) Layer 4 including a silver mirror film, usually silver Film and protective metal film 7,
Forming a backing coating 8.

In this case, in the above item 2), if the adhesive erosion portions 6, 6 remain as they are, the silver film 8 will not be sufficiently uniform, so that the backing coating film will be magnified transparently in an uneven color, and the appearance will be reduced. Is easily damaged.

[0005] On the other hand, removing the adhesive-exposed portion requires labor and labor, and in that case, if there is dirt, it may cause shrinkage, and if there is a scratch, it may be magnified through and impair the appearance. In any case, the production yield is reduced, the appearance is poor, and the durability is reduced.

An object of the present invention is to provide a method of manufacturing an improved mirror with a magnifying glass which solves the above problems, improves the production yield, eliminates appearance defects, and has excellent durability.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a method for manufacturing a mirror with a magnifying mirror in which a uniconvex lens is adhered to an appropriate position on the back of the mirror. A small-sized masking film was formed, 2) after forming a laminated film including the reflection film as it was, the masking film was removed, and 3) a uniconvex lens was adhered to the uniconvex lens attachment portion with an adhesive. Step of forming a laminated film including a reflective film on the back surface of the one-convex lens, or 3 '), forming a laminated film including the reflective film on the back surface of the one-convex lens in advance, and attaching the one-convex lens Process, consisting of
Alternatively, in another manufacturing method of a mirror with a magnifying glass, 1) a coating film made of a colored paint is formed in an appropriate pattern on a portion of the base glass to which the convex lens is adhered, leaving a residual portion slightly smaller than the size of the convex lens. 2) adhering a uniconvex lens to the uniconvex lens attachment portion with an adhesive, and 3) forming a laminated film including a reflection film on the back surface of the raw glass including the uniconvex lens attachment portion as it is. , Consisting of

[0008] The base glass for the mirror may be organic glass, but inorganic glass is often used from the viewpoints of durability, hardness, water resistance, chemical resistance and the like.

As the reflection film, not only a silver mirror film utilizing a normal silver mirror reaction, but also various physical and chemical vapor deposition means, for example, an aluminum film, a chromium film, and other various reflective metal films by vacuum vapor deposition, sputtering or other vapor deposition means. Includes

[0010] Since the uniconvex lens is built into the mirror, it does not require hardness or other severe physical properties, and can be used with either organic glass or inorganic glass. desirable.

The adhesive may be any one which is transparent and has a certain degree of adhesiveness. For example, various adhesives such as epoxy-based, urethane-based and polyester-based adhesives can be employed.

Although the masking film is not specified,
Adopts a peelable resin sheet cut to a small size of, for example, about 80% to 90% of the lens outer shape, and adheres to the lens attachment planned portion on the back of the base glass, or a resin coating that can be peeled off Is formed on the portion where the lens is to be attached to prevent the silver mirror film from being applied.

Of course, the masking film can be formed by a known method as appropriate, and can be removed in a later step by an appropriate peeling and removing means, for example, erosion by a corrosive solution, blasting of sand particles or the like.

In the present invention, since the adhesive-exposed portion at the peripheral portion of the one-convex lens is concealed, the appearance is not deteriorated, the production yield is good, and a durable one can be obtained. It is effective.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the accompanying drawings.
FIG. 1 is a schematic overall front view according to one embodiment, and FIG.
FIG. 2 is a partially enlarged sectional view of FIG. 1, and FIG. 2A is a partially enlarged sectional view of the manufacturing process. 3A to 3C are schematic overall front views according to other examples, and FIG. 4 is a partially enlarged sectional view of FIG. 3A.

FIG. 5B is a partially enlarged sectional view of the prior art, and FIG. 5A is a partially enlarged sectional view of the manufacturing process.

Embodiment 1 In the schematic overall front view of FIG. 1 , 1 is a mirror with a magnifying mirror, 2 is a plate glass constituting the mirror, and 3 is a one-convex lens stuck on the back side. Further, a laminated film 4 including a reflective film (a silver mirror film in the first embodiment) is formed over the entire back surface.

More specifically, as shown in the partially enlarged cross-sectional views of FIGS. 2A and 2B, a size L 'slightly smaller than the size L of the one-convex lens is first placed at a position where the one-convex lens on the sheet glass 2 (back side) is to be adhered. A masking material, for example, a resin sheet 9 having a peelable adhesive layer on one side is adhered, and a laminated film 4 including a silver mirror film, that is, a silver film and a protective metal film (normally a copper film) 7, A film 8 is formed.

It is a usual technical means to separately apply an edge coating film made of a urethane resin, an epoxy resin, or the like to the back coating film and the silver film and the protective metal film exposed portion at the edge of the glass sheet.

Next, the masking resin sheet 9 is
Peel off as shown in 10. Further, a uniconvex lens 3 made of, for example, polycarbonate and having an adhesive 5 such as urethane is adhered on the flat surface side so as to cover the peeling portion. Adhesive 5 is the protruding part
Although there are 6 and 6, there is no need to perform shaping or other operations as in the above-mentioned known example, and if such operations are performed, shrinkage or the like easily occurs.

In addition, a laminated film 4 'including a silver mirror film, that is, a silver film and a protective metal film (usually a copper film) 7' and a backing coating film 8 'are formed on the back side of the one-convex lens 3, and It is completed by forming an edge coating film made of epoxy resin on the backing coating film on the periphery of the convex lens.

The exposed portions 6, 6 of the adhesive 5 are concealed by the ends 4a, 4a of the laminated film 4 including the silver mirror film, so that the appearance is not impaired.

In addition, a method in which a laminated film including a silver mirror film is formed in advance on the back side of the one-convex lens, or a one-convex lens is adhered after further applying an edge coating film can also be suitably employed.

A mirror with a magnifying glass (Example 1) obtained according to the present invention and the known example described above are used, and a one-convex lens is adhered to an appropriate position on the back surface of the base glass with an adhesive. The following test was carried out on a mirror with a magnifying mirror (comparative example) in which the protruding portion was removed and shaped with a blade, and a silver film, a protective metal film, and a backing coating film were formed.

Warm water resistance test (Sample is immersed in hot water at 60 ° C. for 10 days, then taken out and observed for appearance); No abnormality was observed in Example 1; Was observed.

Moisture resistance test (The sample is exposed to steam at 60 ° C. for 8 hours, and then left to cool at room temperature for 16 hours. This is repeated as one cycle, repeated 10 times, then taken out and observed for appearance);
No abnormality was found in both Example 1 and Comparative Example.

Hydrochloric acid resistance test (Sample was immersed in a 0.1 vol% hydrochloric acid aqueous solution for 48 hours, then taken out and observed for appearance); No abnormality was observed in Example 1; Was observed. As described above, the mirror of the first embodiment is also excellent in durability.

[Embodiment 2] As another means instead of Embodiment 1, there is the following method.

FIGS. 3A to 3C show examples in which a colored film is applied in various forms, and a glass plate 2 constituting a mirror 1 with a magnifying glass is shown.
On the back surface of the colored coating film 11a, 11b, 11c of various patterns
, And a one-convex lens 3 are adhered and formed.
Further, a reflection film (a silver mirror film in the second embodiment) is provided on the back surface.
Is formed. The colored coatings 11a to 11c are white,
One or a plurality of various concealable coloring paints including black can be employed, and the pattern is not limited to the illustration, and various design patterns can be employed.

For example, FIG. 4 is a partially enlarged cross-sectional view of FIG. 3A, and a paint containing, for example, a titanium white pigment is left on the back surface of the glass plate 2 while leaving a portion L ′ of a uniconvex lens smaller than the size L of the uniconvex lens. Is printed and applied by an appropriate means such as screen printing, letterpress printing, intaglio printing, brush coating, or brush coating. At the time of applying the above-mentioned brush coating or the like, a design contrivance such as pasting a masking sheet on the one-sided lens adhering portion in advance and peeling off after application is also possible.

Next, a one-convex lens 3 made of, for example, polycarbonate and having an adhesive 5 such as urethane is adhered on the flat surface side. The adhesive 5 has the protruding portions 6 and 6, but is left as it is.

Further, a laminated film 4 including a silver mirror film, that is, a silver film and a protective metal film (usually a copper film) 7, and a backing coating film 8 are formed on the back surface of the glass plate 2 including the back surface of the uniconvex lens 3. Complete. Although not shown, it is needless to say that an edge coating film is applied to the edge portion of the plate glass as in the first embodiment. The exposed portions 6, 6 of the adhesive 5 are colored coating films 11a.
The end portions 11a 'and 11a' are not concealed because they are concealed.

The mirror with a magnifying glass obtained according to the present invention (Example 2) and the known example described above were used to bond a one-convex lens to an appropriate position on the back surface of the base glass with an adhesive. After removing the protruding portion with a blade and shaping, the following test was performed on a mirror with a magnifying mirror (comparative example) on which a silver film, a protective metal film, and a backing coating film were formed.

Warm water test (test method is the same as that in the previous example); no abnormality was observed in Example 2, and occurrence of edge shrinkage at the periphery of the lens was observed in Comparative Example. .

Moisture resistance test (test method is the same as the method in the previous example); no abnormality was observed in both Example 2 and Comparative Example.

Hydrochloric acid resistance test (test method is the same as that in the previous example); no abnormality was observed in Example 2, and occurrence of edge shrinkage at the periphery of the lens was observed in Comparative Example. . As described above, the mirror according to the second embodiment is excellent in durability.

[0037]

According to the present invention, the adhesive-extruded portion at the time of adhering the one-convex lens is not concealed and the appearance is not impaired, and the design having a colored coating film is added to the design. Further, there is an effect that the production efficiency is good, there is no occurrence of shrinkage or the like, and the durability is excellent.

[Brief description of the drawings]

FIG. 1 is a schematic overall front view according to one embodiment.

FIG. 2B is a partially enlarged sectional view of FIG. 1, and FIG. 2A is a partially enlarged sectional view of a manufacturing process thereof.

3A to 3C are schematic overall front views according to other embodiments.

FIG. 4 is a partially enlarged sectional view of FIG. 3A.

FIG. 5B is a partially enlarged sectional view of a conventional technique, and FIG. 5A is a partially enlarged sectional view of a manufacturing process thereof.

[Explanation of symbols] 1 -------- Mirror with magnifying glass 2 -------- Glass plate 3 -------- One-convex lens 4, 4 '---- Silver mirror film 5 -------- Adhesive 11a-11c --Colored coating

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-30832 (JP, A) JP-A 63-83073 (JP, U) JP-A 61-40968 (JP, U) Jiko 36- 23819 (JP, Y1) (58) Fields investigated (Int. Cl. ⁶ , DB name) A47G 1/00 G02B 5/08 G02B 25/00

Claims (2)

(57) [Claims] 1. A method of manufacturing a mirror with a magnifying mirror in which a uniconvex lens is stuck at an appropriate position on the back surface of the mirror, comprising: 2) After forming the laminated film including the reflection film as it is, the masking film is removed.3) The reflection film is applied to the back surface of the one-convex lens after attaching the one-convex lens to the one-convex lens attachment portion with an adhesive. Forming a laminated film including a reflective film on the back surface of the one-convex lens in advance, and then attaching a one-convex lens. Manufacturing method of mirror with magnifying glass. 2. A method of manufacturing a mirror with a magnifying mirror in which a uniconvex lens is adhered to an appropriate position on the back surface of the mirror. A coating film composed of a colored paint is appropriately formed into a pattern, 2) a uniconvex lens is adhered to the uniconvex lens adhered portion with an adhesive, and 3) a reflection film is included on the glass plate surface including the back surface of the uniconvex lens as it is. A method of manufacturing a mirror with a magnifying mirror, comprising a step of forming a laminated film.