JP3140804B2 - Decorative glass product and method of manufacturing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative glass product which can be used as a glass decorative material for building material walls, counter tops, furniture and the like, and a method for producing the same .

[0002]

2. Description of the Related Art When decorating a glass material such as painting, a method using a transfer foil is known, but has the following problems.

For example, a transfer foil in which a transfer layer of a transfer foil is made of a thermoplastic resin, or a transfer foil in which a decorative layer of the transfer layer is made of a thermosetting resin and an adhesive layer is made of a thermoplastic resin. The method of manufacturing a decorative glass product by applying a foil is simple, but the obtained glass product includes at least one layer made of a thermoplastic resin, and thus has a water resistance and a heat resistance. sex,
There is a drawback that only products having poor physical properties such as abrasion resistance and chemical resistance can be obtained.

[0004] In addition, a transfer layer portion of a transfer foil made of a usual thermosetting resin is used, and a primer layer (adhesive layer) on a glass material provided as necessary and a transferred layer A topcoat resin layer provided on the glass material surface,
Alternatively, there is a manufacturing method in which both of these layers are made of a usual thermosetting resin.

[0005] However, in the production method using such a normal thermosetting resin, it is necessary to first form a transfer layer made of the thermosetting resin on the transfer foil, and then wind and laminate the transfer layer. In the cured state, the resin of the transfer layer having a sticky surface must be cured, and the transfer operation to the glass material must be performed after the curing treatment. When the primer layer made of a usual thermosetting resin is completely cured, it does not adhere to the cured transfer layer of the transfer foil. Therefore, it is necessary to provide the primer layer immediately before the transfer and to perform a curing treatment after the transfer. Therefore, in order to completely cure these thermosetting resins, at least two baking hardening processes requiring a large amount of heat and time are required, which is not only uneconomical but also disadvantageous in terms of production efficiency.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and is capable of simple and efficient production, and has properties such as water resistance, heat resistance, abrasion resistance, and chemical resistance. An object is to provide an excellent decorative glass product and a method for producing the same.

[0007]

The present invention provides (1) a substrate filter.
To a thermosetting resin that is uncured and solid at room temperature.
Using a transfer foil provided with a transfer layer composed of
Decorative glass products characterized by sequentially performing the steps of
Manufacturing method, providing a thermosetting primer layer on a glass substrate
And semi-curing by baking and hardening. Above
Photo foil is solid in uncured state at room temperature on glass substrate
Transfer layer composed of thermosetting resin remains uncured
Overlay so that transfer layer and primer layer face each other
About. Peel the transfer film by peeling the transfer foil base film.
Transferring to the mer layer side. The base film was peeled off
A step of providing a thermosetting overcoat resin layer on the subsequent surface. Burning
After hardening treatment, primer layer, transfer layer and topcoat
The thermosetting resin of the oil layer is cured and integrated with the glass substrate.
Process to make it. (2) Thermosetting ply provided on glass substrate
Uncured on the base film at room temperature with the mer layer being semi-cured
A transfer layer made of a thermosetting resin that is solid in the state is provided.
The transfer layer of the transferred transfer foil faces the primer layer.
The transfer layer is superimposed and transferred in the uncured state,
A thermosetting overcoat resin layer is provided on the transfer layer surface, and
Heat of base material, primer layer, transfer layer, and overcoat resin layer
The curable resin is integrated by baking hardening
Characterized by decorative glassware, (3) primer layer
Decoration according to the above (2), wherein a coupling agent is added.
The main point is glassware.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a flow chart showing an embodiment of the production method of the present invention. First, a thermosetting primer layer 2 is formed on a glass substrate 1 as shown in FIG. As the glass substrate 1, any material can be applied as long as it can be transferred by a transfer foil.

As the resin material constituting the primer layer 2, known thermosetting resins such as acrylic, urethane and epoxy resins can be used. Preferably, a silane coupling agent is further added to these resins in 0.1. It is preferable to add about 0.5% by weight. The addition of the silane coupling agent can improve the adhesion to the glass substrate.

The primer layer can be formed by coating by a known printing method, coating method or the like, and the coating amount at the time of drying is preferably 1 to ²⁰ g / m ² . When the decorative glass product is of a type in which the decorative content of the transfer layer is seen through from the glass substrate side, the primer layer needs to be colorless and transparent or colored and transparent.

After the formation of the primer layer 2, a bake hardening treatment is performed until the coating film is in a semi-hardened state in which tackiness (adhesion) is eliminated. Here, if the primer layer is completely cured, the adhesion of the transfer foil provided thereon to the transfer layer deteriorates, and if tack remains, air enters the bonding interface when the transfer foils are overlapped. It is not preferable because it is easy to make, the design is inferior, and the physical properties are lowered.

Next, as shown in FIG. 1 (B), a base film 3 prepared separately and a thermosetting resin which is uncured and solid at room temperature are formed on a primer layer 2 of a glass substrate 1.
The transfer foil 5 comprising the transfer layer 4 to be formed is kept in an uncured state.
The transfer layer 4 and the primer layer are superposed so as to face each other. The transfer foils 5 can be overlapped by means such as a roll transfer method or an up-down transfer method.

FIG. 2 is a cross-sectional view showing an example of a transfer foil used in the production method of the present invention. In the figure, reference numeral 6 denotes a release layer provided as needed. The transfer layer 4 includes at least a decorative layer for decorating the glass substrate, and is a layer that is finally transferred to the glass substrate and transferred. Specifically, it is a layer such as a pattern printing layer and a metal vapor deposition layer. The picture contents are arbitrary, such as stained glass, marble, colored transparent solid, colored concealed solid, and the like.

The transfer layer 4 of the transfer foil used in the present invention
Is formed using a thermosetting resin which is a solid in an uncured state at room temperature. As the specific thermosetting resin, thermosetting acrylic, melamine, urethane, epoxy, etc. can be used, but if there is tack at room temperature, blocking is prevented by adding additives such as silica, calcium carbonate, talc, etc. Plan. As the curing agent for the above resin, it is preferable to use a block type curing agent whose reaction temperature is equal to or lower than the temperature condition for curing the overcoating resin layer. If the time from when the transfer foil is made to when it is transferred to the glass substrate is long, the thermosetting resin reacts in the transfer foil and begins to harden, resulting in adhesion during transfer and transfer workability. However, by adding a block-type curing agent, the thermosetting resin hardly reacts at room temperature, and there is little change over time in the state of the transfer foil alone, and the physical properties can be stabilized.

The substrate film 3 is not particularly limited.
For example, resin materials such as polyethylene terephthalate (PET), polyvinyl chloride (PVC), polypropylene, polymethyl methacrylate (PMMA), and polycarbonate, as well as film materials formed by coating paper with polyolefin, silicone resin, etc., are used. Is done. A release layer 6 is formed on the base film so that the release during transfer is easy.
The release layer may be of any type as long as it has good releasability from the transfer layer 4.

After the transfer foil 5 is overlaid, the base film
3 is peeled off to transfer the transfer layer 4 to the primer layer 2 side (FIG. 1 (C)). Next, a thermosetting type overcoat resin layer 7 is formed on the surface of the glass substrate 1 on which the transfer layer 4 is present, by a suitable method such as a printing method or a coating method.

As the thermosetting resin material constituting the overcoating resin layer 7, a resin material having the same composition as that used for forming the primer layer 2 is used. By using a resin material having the same composition as described above, not only the treatment of the resin in the manufacturing process is unified and advantageous, but also there is little variation in curing distortion in each layer (the primer layer 2 and the overcoating resin layer 7). Thus, a decorative glass product having more stable quality can be obtained. The resin constituting the overcoat resin layer 7 may be colored. By using the colored overcoating resin layer, a thick feeling as a design property or a hiding effect can be obtained in the glass product as viewed from the glass substrate side, and a high-grade feeling can be obtained.

At the stage when the overcoating resin layer 7 has been applied and formed, baking and curing treatment are performed to form the primer layer 2, the transfer layer 4, and the overcoating layer.
All of the thermosetting resin of the resin layer 7 is completely cured, and the glass substrate 1, the primer layer 2, the transfer layer 4, and the overcoat resin layer 7 are integrated. Thus, a decorative glass product according to the production method of the present invention is obtained. As the heat treatment method, conventionally known means can be applied, and the heat curing conditions are appropriately selected so that each curable resin is completely cured.

Next, the present invention will be described in more detail with reference to specific examples. Example 1 After printing on a 25 μm-thick PET film (manufactured by Toray: X-42) using a gray-colored acrylic thermosetting ink (manufactured by Morohoshi Ink) by a gravure printing method in a stone-grain pattern. The coating film was dried under heating conditions of 100 ° C. × 1 minute to form a decorative transfer layer, and a transfer foil was prepared. on the other hand,
A glass plate having a thickness of 5 mm was coated with an acrylic urethane-based glass primer (manufactured by Morohoshi Ink) to which 1% by weight of a silane coupling agent was added, and then applied by a flow coater so that the coating amount when dried was 10 g / m2. , 100 ° C
The coating film was semi-cured by performing baking hardening treatment for 5 minutes to form a primer layer. Next, a separately prepared transfer foil was placed on the primer layer of this glass plate at 100 ° C ×
Roll transfer was performed at a feed speed of 2 m / min, and the PET film was peeled off. Then, an acrylic urethane-based overcoating resin was applied on the surface after the film was peeled off by a flow coater so that the coating amount at the time of drying was 30 g / m2.
A heat curing treatment was performed at 20 ° C. for 20 minutes to obtain a decorative glass product. This glass product exhibited a decorative appearance like marble, and exhibited high physical properties that clear the physical properties (conditions) of warm water resistance at 60 ° C. for 10 days.

[0020]

As described above, according to the present invention, the substrate filter is provided.
Thermosetting resin which is solid in uncured state at room temperature
Using a transfer foil with a transfer layer
Immer layer, overcoat resin layer is composed of thermosetting resin,
The bake hardening process makes the thermosetting resin in these layers glass
Because it is integrated with the base material,
The baking hardening process, which requires heat and time, is different from the conventional method
It only needs to be done once and as a result, it is easy to manufacture and efficient
Production of decorative glass products becomes possible.

[0021] The decorative glass product of the present invention has a glass substrate removed.
The resin in each layer is made of thermosetting resin.
Therefore, the portion formed using a thermoplastic resin as in the past
Water resistance, heat resistance, abrasion resistance, chemical resistance, etc.
Excellent in nature. Further, the manufacturing method of the present invention provides
Decorative glass products can be efficiently and economically manufactured.
You.

Further, the decorative glass product of the present invention comprises a transfer layer and a press.
When the plymer layers are stacked so that they face each other, the glass
The primer layer of the substrate is not completely cured and transferred
Because the layer is uncured, the transfer layer and primer layer
Good adhesion.

The present invention also relates to a transfer layer of a transfer foil to be used.
Using a thermosetting resin that is solid in the uncured state at room temperature
As a result, the transfer layer is
Extremely handling because it can be laminated on the layer surface
, Convenient, easy manufacturing and high production efficiency.

[Brief description of the drawings]

FIG. 1 is a process chart showing one embodiment of the production method of the present invention.

FIG. 2 is a sectional view showing one embodiment of a transfer foil used in the manufacturing method of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Glass base material 2 Thermosetting primer layer 3 Base film 4 Transfer layer 5 Transfer foil 7 Thermosetting topcoat resin layer

Claims (3)

(57) [Claims] 1. A method according to claim 1, wherein the following steps are sequentially performed using a transfer foil having a transfer layer composed of a thermosetting resin which is solid in an uncured state at room temperature on a base film. Manufacturing method of decorative glass products. Heat on glass substrate
A step of providing a curable primer layer, performing a bake hardening treatment, and semi-curing. Place the transfer foil on a glass substrate at room temperature
A step of superposing a transfer layer composed of a thermosetting resin that is solid in an uncured state so that the transfer layer and the primer layer face each other in an uncured state . Removing the base film of the transfer foil and transferring the transfer layer to the primer layer side .
A step of providing a thermosetting overcoat resin layer on the surface after the base film has been peeled off. Bake hardening treatment, primer
Layer, transfer layer and overcoat resin layer
And integrating it with the glass substrate . 2. A thermosetting ply provided on a glass substrate.
Uncured on the base film at room temperature with the mer layer being semi-cured
A transfer layer made of a thermosetting resin that is solid in the state is provided.
The transfer layer of the transferred transfer foil faces the primer layer.
The transfer layer is superimposed and transferred in the uncured state,
A thermosetting overcoat resin layer is provided on the transfer layer surface, and
Heat of base material, primer layer, transfer layer, and overcoat resin layer
The curable resin is integrated by baking hardening
Decorative glassware characterized by the following. 3. A primer layer containing a silane coupling agent.
3. The decorative glass product according to claim 2, which is added.