JPS62202733A - Plate glass/thrust board/plate glass laminate, plate glass/thrust board backing sheet laminate and these manufacture - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention is a completely new decorative material and is useful for furniture and office supplies. This article relates to laminates and methods of using them.

(Prior art and its problems) Conventionally, as a decorative material with transparent front and back surfaces, a transparent sheet 7 made of, for example, acrylic resin is used as a decorative veneer 8 (decorative veneer) of a precious wood, as shown in FIG. Decorative material 11 buried inside
has been developed and used.

However, this type of decorative material 11 generally has
In addition to lacking gloss and luster on the front and back surfaces, it also had the drawbacks of being easily degraded by light and heat, and having insufficient weather resistance and heat resistance.

Further, this decorative material 11 is conventionally manufactured by a method of embedding a sandwich plate 8 of a predetermined thickness into molten resin in a shallow container, and then solidifying the resin.

However, with this manufacturing method, it is extremely difficult to make the decorative material 11 so that the plate 8 is positioned completely parallel to the front and back surfaces 10a and 10b of the decorative material 11, and in addition, in the manufacturing process, the When the board 8 is embedded, air is easily drawn into the molten resin, and as a result, the resin solidifies while the air bubbles 9 remain, often resulting in a decorative material product with air bubble defects.

On the other hand, some furniture items have traditionally been manufactured and sold in which a glass plate is placed on top of a sandwich plate on the surface of the furniture item. However, in such furniture, the glass plate and the 12-plate are not in close contact with each other, and it is not always possible to clearly see the wood grain on the surface of the sandwiched plate through the glass plate.

The present invention has been made in consideration of the above-mentioned circumstances, and its first purpose is to solve the above-mentioned problems and to provide a structure in which the sandwiching plate has both front and back surfaces ζ.
It is an object of the present invention to provide a plate glass 77a plate/plate glass laminate product which is arranged in parallel to the glass plate 77a and is rich in gloss and luster and has excellent weather resistance.

In addition, the second object of the present invention is to
To provide a plate glass/pinch plate lining sheet laminate product that allows the grain of the sandwich plate to be visually recognized clearly and has a unique elegance not found in conventional products.

Furthermore, the third and fourth objects of the present invention are a plate glass/slip plate/plate glass laminate product and a plate glass/crosspiece backing sheet laminate product that can produce the above two types of laminate products reliably and with high productivity. The objective is to provide each manufacturing method.

(Means for Solving the Problems) In the plate glass/formed plate/plate glass laminate product of the present invention, two glass plates are arranged on both sides of a wedge plate or a sandwich backing sheet via an adhesive film or a liquid adhesive, respectively. This is a novel decorative material that is made by laminating and molding.

In addition, the plate glass/V plate backed sheet laminate product of the present invention is
This decorative material is characterized in that it is made by arranging plate glass on the sandwich side of a sandwich backing sheet with an adhesive film or liquid adhesive interposed therebetween and laminating it.

The plate glass used in the present invention may be any plate glass whose front and back surfaces are kept parallel and have a uniform thickness. Invention 1 can be applied. Also, the plate glass is suitably about 2 to 6 meters thick.

Further, in order to maintain good adhesion with the adhesive film over time, the plate glass is preferably treated with an appropriate primer before lamination.

It is preferable that the primer has high transparency and good adhesion.

The 7' nail board used in the present invention can be made of various natural woods, such as Japanese cypress, oak, zelkova, Japanese elm, dotbo, Tochigi, yellowfin, shioji, tabatsuki, akadamo, teak, rosewood, mahogany, bar. Imported materials such as Zy maple, walnut, zebrawood, ebony, abodilla, dao, satinwood, brarian rose, etc., for example, IIL1~[1L
6111II! A sandwich plate cut to a certain thickness is used. The horizontal plate used preferably has a moisture content of about 12s or less, and the thicker the plate, the lower the moisture content.

Further, the horizontal plate backing sheet used in the present invention has a backing material of 8
The use of a sheet stuck to the board is advantageous because it prevents the sandwiching board from fraying (waving phenomenon) and prevents the board from being damaged during handling. The backing material used in the present invention may be any conventionally used material, specifically,
Examples include sheet-like materials such as nonwoven fabric, Japanese paper, kraft paper, resin-impregnated paper, cloth, felt, flocked hair, and plastic. The backing material varies depending on the material and purpose, but usually weighs 20
~zooog/- is used. The bonding between the plate and the backing material is usually carried out by a hot press method using a thermoplastic adhesive, and this method is preferable because it allows easy adjustment of the moisture content of the sandwich plate. The door backing sheet may be applied to the glass/72 plate/glass laminate as an alternative to the end panels.

Furthermore, the adhesive film or liquid adhesive used in the present invention can also be used for plate glass/embedded plate/plate glass laminate products J.
For plate glass/pinch plate backing sheet laminates, any transparent material may be used as long as it is capable of adhering the plate glass to the transfer plate or final plate backing sheet through press forming of the present invention (described below). Examples of materials for the adhesive film include polyolefin, ionomer, and nylon-1.
The thickness of the film varies depending on the type of material board, the adhesive ability of the film, etc., but is preferably about 3A to 160μ. On the other hand, liquid adhesives include, for example, acrylic emulsion adhesives, which have a relatively low viscosity (approximately 2000 cp) so that uniform application is easier.

It is preferable to use one that has high fluidity at 55°C.

Further, the plate glass/shio board/plate glass laminate and the plate glass/pinch plate backing sheet laminate of the present invention can be produced by hot press molding followed by cold press molding while keeping the press pressure constant during molding. , so to speak, can be reliably manufactured by a hot/cold flat press method.

That is, the method for producing plate glass/dredged plate/plate glass of the present invention includes the following steps:
Preferably, plate glass that has been previously treated with a primer is laminated with an adhesive film or liquid adhesive interposed therebetween, and then the laminate is placed in a hot press machine, and a cushioning material is preferably placed between the laminate and the hot plate. After heating and pressing with the same pressure, the temperature is preferably room temperature or slightly higher (e.g., about 40 to 60°C).
) until it cools down to 4! It is a sign. In addition, the method for producing a glass plate/board backing sheet of the present invention includes laminating a plate glass, preferably treated with a primer in advance, on the surface of the planing plate side of the corrugated board backing sheet via an adhesive film or liquid adhesive. Then, the laminate is heated and pressed in the same manner as above, and then pressed at the same pressure until cooled to an appropriate temperature, preferably room temperature or a slightly higher temperature (for example, about 40 to 60°C). t-
This is a characteristic feature.

The press molding conditions of the production method of the present invention need to be changed as appropriate depending on the type of adhesive film or liquid adhesive and the thickness of each laminated material. For example, when a nylon-12 film is used as the adhesive film, the laminate of the plate and plate glass is pressed at a pressure of 5 to 10 kg/C for 7 days.
d.

Pressing temperature 130-150°C and pressing time 5-15
Hot press molding is carried out under conditions of 10 minutes, then cooled while maintaining the same pressure, and when the temperature has dropped to an appropriate temperature, preferably room temperature or slightly higher (e.g. 40 to 60°C), the press pressure is released and the molding is completed. It is necessary to carry out lamination molding by taking the laminated product out of the press machine. In this case, under the above press forming conditions, a laminate product that is free from defects and damage and is stable over time can be obtained.
If the press pressure is set to a low pressure of less than 3 kg/-, the air between the broken plate, etc. and the plate glass may not be sufficiently removed;
If a press pressure higher than kv- is set, the YQ plate etc. will be damaged due to the pressure of the melt of the adhesive film. In addition, if the press temperature is set at a low temperature of 120 to 130°C, the sheet glass and the adhesive film will naturally peel off after a long period of time after forming. In the case of manufacturing, it is preferable to carry out hot/cold press molding by keeping the press pressure t the same as above and setting the press temperature to, for example, 120 to 130°C.

In addition, even if it is a plate glass/board backing sheet laminate, it is recommended to manufacture it under the same press forming conditions (press pressure, press temperature, etc.) as above, but in the case of this laminate, especially the backing material For example, when using a sandwich backing sheet made of kraft paper (basis weight 60g/m") or 7L (2+W thickness) as the backing material, it is necessary to adjust the total press time accordingly depending on the type of It is preferable to set the pressing time to 5 to 7 minutes or 10 to 12 minutes, respectively, under the same press forming conditions as above.

Furthermore, in the manufacturing method of the present invention, when primer-treated plate glass is applied, the adhesion between the plate glass and the sandwich plate (straight plate backing sheet) is dramatically improved, making the laminated product sufficiently durable for long-term use. (because it will) is preferable. The brimer treatment in this case, for example, using a nylon-12 adhesive film, is carried out by applying a silane coupling agent as a primer to the surface of the glass plate and drying it.

As described above, the quality (finish feel) of the laminate of the present invention is greatly influenced by the type of adhesive film, press molding conditions, etc., such as the transparency, melting point, and permeability of the adhesive film into the plaque. It is necessary to appropriately select the film and adjust the press molding conditions accordingly, so that the laminate has the desired finish.

(Function) Compared to acrylic resins and the like, plate glass is much superior in terms of transparency and light reflection characteristics.

The laminate of the present invention is made by closely adhering this glass plate to a mating plate or a hardboard backing sheet, and the optical properties of the glass make the grain (grain, straight grain, etc.) of the plate more clearly visible. (It can be projected clearly and clearly, giving the viewer a unique wood grain tone and color tone that are completely absent from conventional similar decorative materials.)

Seventh, in the present invention, by using an adhesive film in addition to the plate for the plate glass and gamma, that is, by using materials of uniform thickness, the Hisakura plate can be applied to both the front and back sides of the laminate, respectively. A parallel laminate of constant thickness is thus obtained. In addition, even when liquid adhesives (e.g. vinyl acetate resin adhesives or acrylic resin adhesives) are used instead of adhesive films, uniform application of the adhesive allows the front and back surfaces of the laminate to be bonded to the sandwich plate. can be kept parallel. Also in this case, the same excellent design effect as above can be obtained.

Furthermore, in the present invention, by using the above-mentioned hot/cold flat press molding method using an adhesive film, the air between the screen plate (72 plate lining sheet) and the glass plate can be completely removed to the outside air during molding. , the occurrence of air bubble defects (air traps) can be prevented.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

Example 1 The laminate 1 of Example 1 shown in FIG.
．． 2 (ordinary plate glass with a thickness of 5 wm) is formed by laminating and forming nylon-12 adhesive films 4, 4 (thickness: 120 μm) on both sides of a sandwich backing sheet 3, respectively. The lock plate lining sheet 5 is made of barzy maple (L2) as a sandwich plate.
5. A thick veneer is used, and this is coated with vinyl acetate adhesive and dried backing paper (pure white roll scale fi 30g/m")
Sheet 3 was pasted by hot press molding [press temperature 105°C, press pressure 6 kg/-4, and press time 1 minute].
The moisture content of the kusuban is adjusted to 1.0%.

Next, to explain the manufacturing process of the laminated product 1, first, each plate glass 2 is cleaned to remove oil and dust from the surface, and each adhesive surface is coated with a silane-based primer and dried. Adhesive films 4, 4 and glass plates 2, 2 are sequentially laminated on both sides of the backing sheet 50, respectively, and then this laminate is placed in a hot press (not shown) to form a 2-inch thick paper cushion. 6.6 was inserted between the laminate and the hot plate of the press machine, and the press temperature was 145°C, the press pressure cuff was -74 kg/(-74, and the press time was 10 minutes) as shown in Figure 2. Then, the same press pressure was maintained and the product was cooled for several minutes while being pressed. When the temperature dropped to 25° C., the press pressure was released, and then the molded 1JRr rectangular product 1 was taken out.

The obtained laminate 1 of Example had a very good finish of υ, the wood grain and joints of parzy maple were clearly visible, and the surface of the skin plate was coated with polyurekne resin or polyester resin. It was a product with a deep, dignified quality that cannot be obtained with wood. Moreover, the thickness of the laminate 1 was uniform, and the skin backing sheet 5 was kept parallel to the front and back surfaces of the laminate. Furthermore, in Laminated Product 1, no remaining air bubbles could be confirmed.

Example 2 The laminated product sFi of the example shown in FIG.
12 adhesive film 4 (thickness: 120 μm) interposed therebetween and laminated. The sandwich backing sheet 3 is α
Craft paper with a weight of 60 g/d or felt with a thickness of 2 m was adhered to the back side of a board (barzai maple) with an adhesive of 25ffi11 thickness.

Next, to explain the manufacturing process of the laminate 5, first, the plate glass 2f is cleaned and the surface to be bonded is treated with a silane coupling agent, and then nylon-12 adhesive is applied. The film 4 and the primer-treated glass plate 2 are sequentially laminated on the gamma plate side surface of the backing sheet 3, and then this laminate is placed in a hot press machine, and a paper cushion 6.6 is placed between the laminate and the press machine. As shown in FIG. 4, the press molding was performed under the same press forming conditions as in Example 1 (however, if the backing material of the sheet 5 is kraft paper, the pressing time was 5 to 7 minutes). (If the material is felt, the pressing time is 10 to 12 minutes), followed by pressing while maintaining the same pressing pressure until the laminate cools to room temperature, and then pressing. The pressure is released and the formed plate glass I plate backing sheet laminate 5 is taken out.

The obtained laminate 5, like the one in Example 1, has a good finish, the grain of the skin board can be seen very clearly, and it has a deep and heavy texture that is not found in conventional decorative materials. It was dignified. There was no occurrence of bubbles or breakage of the glass.

Example 3 The laminate 1 of Example 5 shown in FIG.
, 4] except that liquid adhesive 12.12 (acrylic emulsion adhesive) was applied.
Layer structure similar to that of Example 1
It is a laminated plate glass product.

This laminate 1 is first placed on the surface of the cleaned plate glass 20.
Liquid adhesive 12 (acrylic emulsion adhesive, viscosity 2200 cp (30°C), solid content 50%) was wet weighed 1
aag/rr? (dry weight: 70 g/W?), and then the two sheets of glass plate 2, 2 are laminated on both sides of the backing sheet 30, and then this laminate is placed in a hot press machine. together with a paper cushion 6.6, and hot/cold press molded as shown in Figure 6, specifically at a press temperature of 125°C and a press pressure of 8kg/
cJ, heat compaction under the conditions of press time 8 minutes, then continue compaction with the same press pressure until cooled to tl-60℃,
Thereafter, the press pressure is released and the molded laminate is taken out, thereby producing the product. The adhesive 12 preferably has low viscosity and high fluidity, and the amount of the adhesive applied is preferably 50 to 150 g// in terms of solid content. Uniform application of the adhesive can eliminate the formation of residual air bubbles in the laminate.

The obtained laminate 1 of Example 5 was equivalent to that of Example 1,
The finish was of good quality.

(Effects of the Invention) As explained above, the plate glass/board/plate glass laminated M product and the plate glass/board backing sheet & layered product of the present invention are made of adhesive film, plate glass and board (end plate backing sheet). ) is a completely new decorative material. Therefore, compared to conventional similar decorative materials, the laminated product of the present invention allows the grain of the sandwich plate to be more clearly seen, and is superior to conventional products in terms of transparency, gloss, solidity, color tone, etc. It has a unique elegance and taste. Further, the plate glass/slip plate/plate glass laminate of the present invention has a uniform thickness, and the inner plate is always kept parallel to the front and back surfaces of the laminate.

In addition, the method for producing the laminate of the present invention employs a hot/cold press molding method, thereby ensuring that the above two types of laminates of the present invention are free from internal air bubbles, damage to the gamma plate, adhesive exudation, etc. It can be manufactured with high productivity without any generation.

[Brief explanation of drawings]

Figure 1 is a sectional view showing a plate glass/slip plate/plate glass laminate product according to Example 1 of the present invention, Figure 2 is a diagram showing the manufacturing process of the laminate product of Figure 1, and Figure 3 is an example of the present invention. FIG. 4 is a diagram showing the manufacturing process of the laminate product shown in FIG. 3; FIG. 6 is a sectional view showing the manufacturing process of the laminate product shown in FIG. 5, and FIG. 7 is a sectional view showing a conventional decorative material. In the figure, 1...Plate glass/skin plate/plate glass lamination product 2...Plate glass 3...Nippet backing sheet 4...Adhesive film 5...Plate glass 71 Lamination of backing plate backing sheet Item 12...
Liquid adhesive patent applicant Hiroshi Mitsumata and one other person Figure 1 Figure 2 Figure 3 Figure 4 Figure 7 Figure 5 F Amendment of procedures and April 1986 ton 3, Supplement 11:. Relationship with Gfl Patent Applicant 5-Mlril:, Attachment 11 of the Instruction (Voluntary) 6, F+li Positive Target 7, Contents of Amendment (1) “Uniform spraying” on page 17, line 12 of the specification Apply it.”
Corrected by saying "spray applied and dried evenly". Procedural amendment power October 1986 3 Electrical plate glass / 1 veneer-backed sheet laminate product and their manufacturing method 3, Supplement 11:, Person + J (Relationship with the case Patent applicant (and 1 other person) 7 , Contents of amendment (11 specification, page 7, line 1) r 20-20001/r
d j "e "20-200 f/n?" Correct.

Claims (4)

[Claims] (1) A plate glass characterized by being formed by laminating two glass plates arranged on both sides of a plate or a plate lining sheet with an adhesive film or liquid adhesive interposed therebetween.
Laminated plate glass products. (2) A plate glass/plate lining sheet laminate product, which is made by laminating and forming a plate glass on the plate side of a plate lining sheet with an adhesive film or liquid adhesive interposed therebetween. (3) Plate glass is laminated on both sides of the ■board or ■board backing sheet, respectively, via an adhesive film or liquid adhesive, and then the laminate is placed in a hot press machine and heated and pressed. A method for manufacturing plate glass/plate/plate glass laminates, characterized in that the product is pressed under the same pressure until cooled to an appropriate temperature. (4) Plate glass is laminated on the board-side surface of the board backing sheet via an adhesive film or liquid adhesive, and then the laminate is placed in a hot press machine and heated and pressed, followed by the same pressure. A method for manufacturing a plate glass/■ plate-backed sheet laminate product, which is characterized by pressing the product while it is still in its original state until it is cooled to an appropriate temperature.