JPS6084503A - Manufacture of light transmitting plate controllable in light transmission - Google Patents

Abstract

PURPOSE:To enable efficient manufacture of a light transmitting plate enhanced in strength through combination of a tape-formed material with a transparent resin base into one body by arranging said tape stretched within its elastic limit and impregnating it with a liquid transparent resin. CONSTITUTION:A black polyester film is selected as a tape-formed material 2, and it is hung on each round-sectioned protuberance 6a, 7a of a pair of supporting rods 6, 7 alternately in succession, and the latter rod 7 is pulled in the arrow direction by fixing a spring 8. The tape 2 is permitted to slip around each protuberance 6a, 7a, and it is stretched and every part of it is given the equal tension with the spring 8. This tape 2 is set in a cell together with the supporting rods 6, 7 with an acrylic resin prepolymer to polymerize and harden it.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a method for efficiently manufacturing a transparent plate capable of controlling transmitted light, which is useful for lighting louvers, window blinds, solar collectors, partitions, etc. It is something.

[Prior art]

Conventionally, the light regulating members in the application field of this building are:
Lattice louvers, strip blinds, Fresnel lenses, etc. have been used. However, among these, lattice-shaped louvers and strip-shaped blinds do not necessarily regulate light sufficiently, the louver pieces and blind pieces are exposed and get dirty easily, and many of them are expensive and difficult to use over long periods of time.
There was a concern that it might become deformed. In addition, Fresnel lenses are excellent as light regulating members, but they require precise molds to manufacture, and when manufacturing large Fresnel lens sheets, the equipment becomes large and manufacturing costs increase. .

From this point of view, sheet materials in which synthetic wood materials, other synthetic resin materials, or light reflecting members such as aluminum are laminated are disclosed, for example, in JP-A-48-98855 and JP-A-5.
Publication No. 1-126850, Special Publication No. 55-45140,
Special Publication No. 56-17649 and Meikai No. 58-5460
This is already known from Publication No. 1 and the like. However, these sheet materials are manufactured by laminating or winding a translucent film or sheet and another sheet that can control the material to create a block or rolled product, which is then completely sliced. There is. Therefore, in such a method,
The two steps of lamination and thin slicing are essential, which not only increases the number of steps, but also makes it difficult to create large sheets, which is why sheets are sometimes cut diagonally. As this is unavoidable, there is little change in the original regulations, and since different materials are laminated, the bonding strength is insufficient and there are concerns about delamination.

[Purpose of the invention]

In view of these circumstances, the present invention has a wide variety of types of restrictions on the direction of transmitted light and the width of the light, can be easily manufactured using a synthetic resin casting method, and furthermore, the member to be restricted and the base material are integrated. Efficient use of translucent plates with superior strength
This is what we are trying to manufacture.

[S composition of invention]

The present invention has been made to achieve the above-mentioned object, and its gist is that a transparent resin base material cured by cast polymerization is coated with an optical resin. This is a method for manufacturing a transparent plate by embedding tape-like materials of different properties in one piece, in which the tape-like materials are arranged in a manner that maintains their elasticity and tension, and while maintaining this state, a transparent liquid is formed. A method of manufacturing a transparent plate capable of controlling transmitted light, characterized in that a resin material is completely injected and cured.

The invention will be described below with reference to drawings of embodiments.

Figures 1 and 2 show a light-transmitting plate that can fully control the transmitted light obtained by the uninvented manufacturing method.
) is cured by cast polymerization, (2
) is a tape-like material having different optical properties from the transparent resin base material (ri). In this case, a large number of tape-like materials (2) are arranged in the shape of a paper, and at least the tape-like materials (2)
A part of is embedded in the transparent resin base material.
Furthermore, they form an integral plate-like body. In addition, as the transparent resin base material in the present invention, an acrylic resin or an unsaturated polyester resin, which is translucent and can be cast-polymerized, is used.

In addition, since the tape-like material is integrally embedded in the transparent resin base material, the liquid transparent resin material, which is the starting material for the transparent resin base material, is It is necessary to satisfy the following conditions: it does not dissolve or change the quality of the monomer or silica, it does not interfere with the reaction when these materials polymerize, and it does not have poor adhesion to the transparent resin substrate (removal). However, a transparent resin base material (with different optical properties) is used. Here, the difference in optical properties means that the transparent resin base material (substance inside υ that causes original absorption, refraction, or reflection) is used. -99 is specifically a colored film such as polyester.

Examples include polyester film or aluminum foil on which metals such as aluminum are vapor-deposited.However, if there is a risk that the material used for the tape-like material will dissolve or change in quality, provide a protective film layer on the surface. It is also possible to use

The present invention manufactures an integral plate-like body by arranging these tape-like materials (2)'t on the transparent resin base material (1), which can have various structures. be able to. An example of this is shown in FIG. 2, and FIG. 2(A) is a modification of the transparent plate shown in FIG. In the transparent plate of this example, since the tape-like material (2) is completely embedded in the transparent resin base material, a skin layer (1a) is formed on both surfaces, and the transparent resin base material (It is as if it were one layer.

Therefore, it can be handled in the same way as a general transparent plate, and there is no need to worry about delamination. The figure (1) is an example in which the skin layer (1a) is formed in the same way as above, and the other is an example in which the end of the tape-like material (2) is aligned with the surface of the transparent resin base material (1). Same < (0) is an example in which both sides of the tape-like material (2) and the transparent resin base material (ri) are the same. Case, same figure (D).

(EO is an example where a part of the tape-like material (2) protrudes to the outside, and (D) is an example where the opposite end is a transparent resin base material (1).
(K) is the epidermal layer (1a) on the opposite side.
) is provided.

Figure 3 (~~(force) shows the arrangement state of the tape-like material (2) when manufacturing the present invention, (A) - (DJ is an example in which they are arranged in parallel to each other. Of which (A)
, (B) and (0) are examples of the case where the direction is perpendicular to the surface direction of the transparent plate, and (B) is an example in which the tape-like objects (2) are arranged at twice the interval based on (A) t-. (0) is an example in which the tape-like objects (2) are arranged at an angle of 172 degrees, and (D) in the same figure is an example in which the tape-like objects (2) are arranged at an angle.

In addition, (E) and (F) of the same figure show tape-like objects (2) arranged in a state that they are not parallel to each other, and (B) shows individual tape-like objects (2 ) are arranged at an angle, and (F) is one in which tape-like materials (2) are arranged in order to diffuse light.

In the next step, the tape-like objects (2) arranged in this way are injected with a liquid transparent resin material and cured, but at this time, the tape-like objects (2) are made so that they do not move or bend. There must be. The present invention is characterized in that at this time, the tape-like material (2) is arranged while maintaining its elasticity and being tensed, and when it is loaded into a cell for cast polymerization in this state, it becomes a liquid transparent resin material. When gold is injected, the tape-like material (2) does not move or bend as described above, and the desired arrangement is maintained. Note that such tensioning of the tape-like material (2) may be performed on each tape-like material (2), or may be performed on the entire tape-like material (2).

[Example 1] A transparent polyester film with a thickness of 50 μm and aluminum lamura vapor-deposited on one side was prepared as a tape-like product, and this was cut into a piece with a width of 5 m and a length of 1.400 mm, and this was cut as shown in Figures 4 and 4. The tape-like material (2) was fixed to the support frame (3) of 60, and the guide groove was (4a) There is a rubber ring (
5) It was fixed through the wire. With this, tape-like material (2)
was able to be arranged under tension while maintaining its elasticity.

In this case, the rubber rings (5) may be attached to both ends of the tape-like material (2).

Next, attach the tape-like objects (2) arranged in this way to the support rod (
5), together with (4), are loaded into a cast polymerization cell consisting of two sheets of tempered glass and a vinyl chloride resin gasket, and the partially polymerized acrylic resin is gently poured into this cell, and polymerized according to a conventional method. hardened.

Remove the translucent plate from the cell and cut the peripheral edge to a thickness of 8 m.
A transparent plate having a width of 300 mm and a length of 1.300 mm and having tape-like materials (2) as shown in FIG. 1 arranged in an orderly manner was obtained.

[Example 2] Black polyester with a thickness of 100 pm was selected as a tape-like material, and this was cut into a width of 5mm to prepare a length of 10mm. This tape-like material was then held as shown in FIGS. 6 and 7. In other words, the tape-like material (2) in a continuous state,
Circular protrusion (6a).

A pair of support frames (6), (7a) each having (7a)
), and the other support frame (7) has a spring (
8) was attached and pulled in the direction of the arrow. At this time, the circular protrusions (6a) and (7a) are arranged approximately one protrusion apart from each other, and the circumference of p1 is a circle, so the tape-like object (2) can slide between them. . Therefore, when the support frames (6) and (7) are pulled in opposite directions, or when a slight vibration is applied, the tape-like material (2) as a whole is brought into tension, and the spring ( 8) also imparts elasticity. Note that (a) in the figure is a presser plate.

The tape-like material (2) prepared as described above was loaded into a cell together with the support frames (6) and (7) in the same manner as in Example 1, and a partially polymerized acrylic resin was injected and polymerized. ,
hardened.

Cut around the board removed from the cell and bury a black tape inside. Thickness: 10 cm, width: 550 cm, length: 1.10 cm
A translucent plate with a length of 0 m could be obtained. Similar to Example 1, this light-transmitting plate was also good, with no distortion of the tape-like material.

〔Effect of the invention〕

Since the present invention has the configuration described in detail above, there are many types of regulations for the direction and amount of transmitted light, and a high-strength light-transmitting plate in which a tape-like material and a transparent resin base material are integrated is provided. t5
0.0 by making full use of the method of cast polymerization of synthetic resin. The advantage is that it can be manufactured easily and efficiently.

[Brief explanation of the drawing]

Figure wc1 is a perspective view of a transparent plate obtained by the manufacturing method of the present invention, Figures 2 (A) to (!i9 are partial sectional views showing examples of the transparent plate also obtained by the present invention, Figure 3 (
4) to (F) are side views showing the arrangement of the tape-like objects used in the present invention, and FIGS. 4 and 5 are the arrangement state kMf of the tape-like objects in the wX1 embodiment of the present invention: a partial plane shown The figures and perspective views, FIGS. 6 and 7 are the second embodiment of the present invention.
FIG. 3 is a partial plan view and a perspective view showing an arrangement of tape-like objects in an example. (1)...Transparent resin base material (2)...Tape-like material (5), (4), (6), (7)...
・Support rod (5)-・Yu・Rubber ring (8) Hatake・e1111
Spring Patent Applicant Mitsubishi Rayon Co., Ltd. Representative Patent Attorney Toshio Yoshizawa

Claims (1)

[Claims] A method of manufacturing a transparent plate by integrally embedding a tape-like material having optical properties different from that of the transparent resin base material into a transparent resin base material cured by cast polymerization, the tape-like material having elastic properties. A method for manufacturing a transparent plate capable of controlling transmitted light, characterized by holding and arranging under tension, and injecting and curing a liquid transparent resin material while maintaining this state wA.