JP3004977U - Sheet with decorative aggregate - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a sheet for mounting decorative aggregate, which can remarkably improve workability of finishing and finishing products. [Structure] The above object is a decoration in which a decorative aggregate is embedded in a desired depth in a hot melt composition layer of a sheet formed by forming a hot melt composition layer on a heat-resistant and water-resistant film-like support. This can be achieved by providing a decorative aggregate-containing sheet characterized in that a decorative aggregate-non-mounting portion is provided in the peripheral portion of the aggregate-containing sheet.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sheet for mounting decorative aggregate used for exposing exposed aggregate of landscape decorative concrete, and more particularly to a sheet for mounting decorative aggregate capable of significantly improving workability of finishing.

[0002]

[Prior art]

 One of the methods that have been generally known so far for the exposed finish of concrete aggregates is the washout method. In this method, mortar or concrete in which aggregate is kneaded is cast on a concrete base or on a formwork, and while these are half hardened, the surface mortar etc. is washed away to expose a part of the aggregate. Alternatively, after injecting mortar or concrete in which aggregate has been kneaded, the surface hardening retarder is sprinkled on the surface, or the surface hardening is delayed by means such as coating the surface with a hardening retardation sheet, and the internal hardening is delayed. This is a method in which only the uncured surface layer is washed away at the stage when only the cement has hardened to expose a part of the aggregate.

In the above-mentioned washing method, since a large amount of water is used to wash away mortar and the like, a large amount of inorganic substances including heavy metals must be treated, and expensive decorative aggregates must be used in an unnecessarily large amount. Because of the problems that it must be done and that it takes a lot of time and labor, the present inventors have used a new adhesive sheet developed for exposing the aggregate, and We have proposed a method in which the aggregate is exposed after the adhesive sheet is removed after the adhesive sheet is hardened by embedding mortar or the like on it and hardening it (Fig. 4).

[0004]

[Problems to be solved by the device]

 The above-mentioned sheet-using aggregate exposing method has excellent characteristics such as being a dry type and obtaining a good aggregate exposed surface, but after the mortar etc. has hardened, the adhesive sheet is pulled from the surface. When peeling off and exposing the decorative aggregate, the entire surface of the sheet is in close contact with the mortar and the like, which requires a great deal of effort to start peeling, and there is a need for improvement.

An object of the present invention is to solve the problems of the above-mentioned conventional techniques and to provide a decorative aggregate-mounted sheet that can significantly improve the workability of finishing.

[0006]

[Means for Solving the Problems]

 The purpose of the above is to mount a decorative aggregate by embedding a decorative aggregate in a desired depth in the hot melt composition layer of a sheet formed by forming a hot melt composition layer on a heat-resistant and water-resistant film-like support. This can be achieved by providing a decorative aggregate-equipped sheet, which is characterized in that the peripheral portion of the seat is not provided with the decorative aggregate. More specifically, a decorative aggregate is mounted on a sheet formed by forming a layer of a hot-melt adhesive such as a hot-melt adhesive on a heat-resistant or water-resistant support, leaving a peripheral portion, or This can be achieved by using a hot-melt adhesive as the hot-melt composition, mounting the decorative aggregate while leaving the peripheral part thereof, and making a part of the peripheral part non-adhesive. Making a part of this pressure-sensitive adhesive sheet non-adhesive can be achieved by bonding a heat-resistant and water-resistant tape or paper to this part.

The above-mentioned sheet must be deformable and suitable for mounting a decorative aggregate, which comprises a hot-melt composition layer on a flexible heat-resistant sheet-like support. Can be formed by forming. As the flexible heat-resistant sheet, various materials such as plastic film, cloth, paper, and non-woven fabric can be used. However, in terms of strength and ease of handling, a plastic film such as polyethylene terephthalate is used. A suitable polyester film is suitable.

Further, the hot melt composition for fixing the aggregate has flexibility and peculiar adhesive properties, that is, has an adhesive force of sufficient strength for fixing the aggregate, and removes it. When doing so, use one that has the property of being easily peeled off. Further, in order to embed the aggregate in the hot-melt composition to a desired depth, a method of applying the pressure to the aggregate, adhering it to the surface of the hot-melt composition, heating it, or the like is used. Apply. The heating method is suitable for surely embedding the aggregate. Therefore, a material having properties suitable for such a method is used. Hot melt compositions with the above performance are based on elastomers such as styrene / butadiene / styrene block copolymers, styrene / isoprene / styrene block copolymers, styrene / ethylene / butylene / styrene block copolymers. The composition described below is suitable, and a hot-melt type pressure-sensitive adhesive is particularly suitable.

In order to mount the aggregate while leaving the peripheral portion of the sheet, a jig or the like for covering this portion may be used. Also, if the hot-melt composition is a hot-melt adhesive and you want to make the non-aggregate part around it non-tacky, attach a tape such as a polymer film or paper to this part. Method. The polymer film used should be heat resistant so that it can withstand the aggregate embedding process, and water resistant so that it will not be attacked by moisture when concrete paste or mortar paste is driven in. To do.

[0010]

[Action]

 To attach the above-mentioned decorative aggregate-loaded sheet to a concrete driving form, etc., a method such as pressing the non-aggregate-loaded part around the sheet to bring it into close contact with the form can be used. It is possible to completely prevent the leakage of the back to the back.

Further, when concrete or mortar is driven and cured on the decorative aggregate-loaded sheet, the portion of the aggregate exposed from the hot melt composition layer is fixed in the concrete or mortar, and the sheet is pulled. By peeling off, the part embedded in the hot melt composition is exposed to the outside. When concrete or the like is cast on the sheet and cured as described above, the aggregate is firmly fixed to the concrete or the like, and the concrete or the like adheres to the soft hot melt composition layer and partially digs into it. It is formed in such a state. When peeling a sheet in such a state from a concrete or the like, there is considerable difficulty in starting peeling. This tendency is particularly remarkable when a hot melt adhesive is used. However, if polyester tape or the like is attached to a part of the peripheral part, this part can be easily peeled off from concrete or the like, and the sheet can be peeled off very easily. Further, when the end portions of the sheet are evenly peeled off as described above, the sheet can be peeled off more easily by, for example, winding this portion around an appropriate pipe.

[0012]

【Example】

 Hereinafter, the decorative aggregate mounting sheet of the present invention will be specifically described with reference to examples.

[0013]

Example 1 First, a hot melt composition based on a styrene / butadiene / styrene block copolymer was applied on a polyester film having a size of 600 mm × 500 mm and a thickness of 38 μm to a thickness of 500 μm. A sheet for mounting the decorative aggregate was produced. Next, leaving 10 mm width around the periphery of this sheet, sprinkle with decorative natural stone having an average diameter of about 8 mm and heating at 140 ° C for 20 minutes to partially embed the natural stone in the hot melt composition. A mounting sheet was prepared. A partial cross-sectional view of the decorative aggregate-loaded sheet thus produced is shown in FIG. 1, and a top view thereof is shown in FIG. In the figure, 1 is a polyester film, 2 is a hot melt composition, and 5 is a decorative aggregate.

The above-mentioned sheet for mounting the decorative aggregate is placed in a mold of 600 mm × 500 mm and 50 mm in depth, the peripheral non-aggregate portion is crimped with a holding jig, and then mortar is poured in, and the mortar is poured at 60 ° C. for 5 hours. The mortar was cured to be hardened, and the portion exposed from the hot melt composition layer of the decorative aggregate was fixed in the mortar. When the solidified mortar was taken out of the mold and the sheet was peeled off, a decorative aggregate exposed block with a very good finish could be obtained.

[0015]

Example 2 A hot melt adhesive based on styrene / butadiene / styrene block copolymer was applied to a thickness of 500 μm on a polyester film having a size of 600 mm × 500 mm and a thickness of 38 μm. A sheet for mounting the decorative aggregate was produced. A natural stone for decoration having an average diameter of about 8 mm was embedded in the hot melt composition layer in the same manner as in Example 1 except that the peripheral portion of the sheet had a width of 10 mm, and was further provided on one side of the natural stone-free portion of the sheet. A 10 mm wide polyester tape was attached to produce a decorative aggregate-loaded sheet. A partial cross-sectional view and a top view of the thus-prepared decorative aggregate-carrying sheet are shown in FIGS. In the figure, 3 is a hot-melt adhesive, 4 is a polyester tape, and the others are the same as in the case of Example 1.

The above-described decorative aggregate-carrying sheet was mounted on a formwork in the same manner as in Example 1, and after mortar was poured on the surface to cure the sheet, the sheet was peeled off and the aggregate was exposed. I checked the condition. The results were extremely good in terms of ease of peeling the sheet and exposure of the aggregate.

[0017]

[Effect of device]

 As described above, by using the sheet with the decorative aggregate as the sheet of the present invention, it is possible to solve the problems of the prior art and significantly improve the workability of finishing and finishing the product. We were able to provide a sheet with a decorative aggregate that can be used.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view of an embodiment of a sheet for mounting a decorative aggregate of the present invention.

FIG. 2 is a top view of the seat of FIG.

FIG. 3 is a partial cross-sectional view of another embodiment of the decorative aggregate mounting sheet of the present invention.

FIG. 4 is a top view of the seat of FIG.

[Explanation of symbols]

1 ... Polyester film, 2 ... Hot melt composition,
3 ... Hot melt adhesive, 4 ... Polyester tape, 5
… Decorative aggregate.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location B44C 1/20 9134-3K 5/00 9134-3K E04F 13/08 A 9127-2E (72) Device Kazuhisa Ishigaki 1-4-3, Kotobuki-cho, Fuchu-shi, Tokyo (72) Inventor, Eiaki Kobayashi 3819 Noborito, Tama-ku, Kawasaki-shi, Kanagawa Sliontech Co., Ltd. (72) Inventor, Hiroyuki Enomoto Kawasaki-shi, Kanagawa 3819 Noborito, Tama-ku, Sliontech Co., Ltd.

Claims (3)

[Scope of utility model registration request] 1. A decorative aggregate in which a decorative aggregate is embedded in a desired depth in a hot melt composition layer of a sheet formed by forming a hot melt composition layer on a heat-resistant and water-resistant film-like support. A sheet for mounting decorative aggregate, characterized in that a portion not mounting decorative aggregate is provided on the periphery of the mounting sheet. 2. The sheet for mounting decorative aggregate according to claim 1, wherein the hot melt composition layer is a layer made of a hot melt adhesive. 3. The decorative aggregate-loaded sheet according to claim 1, wherein the hot-melt composition layer is made of a hot-melt adhesive and a portion of the decorative aggregate-free portion is non-adhesive. .