JPH0133636Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention improves the workability of glass cloth used to strengthen the coating layer of synthetic resin. It is suitable for use for the purpose of strengthening synthetic resin-coated floors during construction.

Conventional technology When constructing a painted floor using polyurethane resin, etc., a primer is first applied to the base material surface made by applying cement, mortar, etc. in advance, and then a glass cloth is attached using an adhesive, and then It is known to apply polyurethane resin by pouring it. However, in this method, in order to prevent the glass cloth from floating or shifting during coating with polyurethane resin, it is cumbersome to attach the glass cloth to the surface of the substrate using an adhesive. In other words, there is the inconvenience of requiring unnecessary materials each time.

Problems to be solved by the invention In the present invention, the above-mentioned drawbacks of the conventional technology,
That is, the purpose is to eliminate the inconvenience and complexity of attaching glass cloth by using an adhesive.

Means for Solving the Problems In the present invention, a glass cloth is placed on one side of the sheet, and the entire surface is coated with an adhesive, thereby solving the above-mentioned drawbacks of the conventional technology. be.

FIG. 1 is a cross-sectional view schematically showing the present invention,
A glass cloth 2 is placed on one side of the sheet 1, and an adhesive 3 is applied on top of it to adhere to the threads of the glass cloth 2 except for the lower surface of the threads in the parts where the threads are present, and to adhere to the threads in the parts where there are no threads of the sheet. By directly adhering to one side, the entire surface is coated and laminated, and the glass cloth 2 is adhered onto the sheet by the adhesive 3 coated and laminated in this way.

In principle, the release sheet 1 used here can be used as long as it is laminated to the adhesive layer of a normal adhesive-treated sheet, such as polyolefin in-film with a thickness of 30 to 200 μm such as polyethylene or polypropylene. , composite paper coated or laminated with polyethylene or polypropylene. In the latter case, the coated surface or the laminated surface is releasable, and in the former case, both surfaces are releasable unless specially treated. In addition to these, paper coated with silicone resin can also be used.

In the present invention, it is preferable that the release property of the back surface (top surface in FIG. 1) of the release sheet 1 is greater than that of the front surface (bottom surface) due to the manufacturing method of the adhesive-treated glass cloth (described later). Both surfaces of the moldable sheet 1 are preferably made of the above-mentioned polyolefin resin, and further preferably the back surface (upper surface) is processed with silicone to improve mold releasability.

In principle, a sheet of any material can be used as the sheet 1 used here, but
Normally, this kind of sheet is processed continuously and wound up after processing, and since the adhesive-treated glass cloth of the present invention is manufactured using the manufacturing method described below, the glass cloth 2. It is desirable that the releasability of the surface of the sheet on which it is placed is smaller than that of the opposite side of the sheet.

Examples of sheets that have a difference in releasability on both sides of the sheet as described above include the following: (a) The sheet base material is made of polyethylene resin or polypropylene resin on at least both surfaces (these resins are These resins are laminated either as a single sheet or on both sides of paper), and have release treatment, such as silicone processing, applied to only one side. In this case, a glass cloth is placed on the side that has not been subjected to mold release treatment.

(b) The sheet base material itself is the same as (a) above, but only one side has been surface treated, such as corona treatment. In this case, place the glass cloth on the surface-treated side.

(c) The sheet base material is paper laminated with a resin layer of polyethylene resin or polypropylene resin, and the surface of the resin layer has been subjected to mold release treatment, for example, silicone processing. In this case, it is necessary to select and use paper that will not peel when the glass cloth is removed.

The glass cloth 2 used here strengthens the synthetic resin coating floor, and during coating, the synthetic resin is sufficiently filled in the holes of the glass cloth and becomes one, so that the glass cloth 2 8 pieces, preferably 1~
The openings are woven at a density of five and have a rectangular or similar shape. FIG. 2 shows an example of the glass cloth 2.

As the material for the adhesive 3, there may be used solvent-soluble adhesives such as acrylic or rubber-based adhesives, water-soluble or emulsion-type adhesives such as acrylic adhesives, and hot-melt adhesives such as rubber-based block polymers. Any of the three types mentioned above can be used as the adhesive, but in the present invention, it is preferable to use a solvent-soluble type or an emulsion type from the viewpoint of ease of processing during production.

The amount of adhesive 3 to be applied is approximately 30 to 300 g/m ² (at the time of application), depending on the thickness of the glass cloth thread.

The adhesive-treated glass cloth of the present invention is manufactured as follows.

First, as shown in FIG. 3, an adhesive 3 is applied to the release surface (upper surface) of the release sheet 1, a glass cloth is attached to the coated surface, and the sheet is once rolled up.

After applying the adhesive, stick them together so that the adhesive-applied side of the glass cloth and the releasable side of the release sheet are in contact with each other, and evaporate the solvent or water contained during the application of the adhesive by drying. .

Next, when unwinding from the rolled up state, when the part between the release sheet 1 and the adhesive 3 is peeled off and pulled out, a stacked body 4 as shown in FIG. 4 is created as an intermediate body. being pulled out.

In order to smoothly obtain such an intermediate 4 without causing breakage of the adhesive 3, it is preferable that the upper surface of the releasable sheet 1 has high releasability, and as described above, the surface of the polyolefin resin is further coated with silicone. Processed ones are better.

As shown in FIG. 5, the intermediate 4 in FIG. 4 can be produced by applying pressure using a roll 5 that is soft and releasable (for example, a silicone rubber roll), so that the adhesive 3 can be attached to the glass cloth and the glass cloth can be released. The glass cloth is coated except for the part that is in contact with the mold sheet, and the adhesive 3 is directly attached to the opening of the glass cloth.
An adhesive-treated glass cloth having a cross-sectional structure as shown in FIG. 1 is obtained.

Function: The adhesive-treated glass cloth of the present invention is placed, for example, on a concrete floor surface coated with a primer, with the release adhesive 3 side in contact with the primer, and is preferably pressed by hand, with a trowel, with a roller, etc. and then peel off the release sheet 1. after that,
After pouring polyurethane resin, leveling it with a trowel, etc., and curing it, it is integrated into the floor surface.

In the above, when pasting the adhesive-treated glass cloth on the floor, there is a height difference in the surface of the adhesive between the parts of the glass cloth with threads and the parts without, so only the parts with threads are adhered, and the mold is released. When the sheet 1 is peeled off, the adhesive 3A at the position corresponding to the opening of the glass cloth adheres to the release sheet 1 and is removed.
Only the adhesive 3B at the position corresponding to the thread part of the glass cloth adheres to the floor surface 6, thereby bonding the glass cloth to the floor surface.

In this way, unlike conventional glass cloth, the glass cloth is fixed to the floor surface with an adhesive, so when the synthetic resin is poured, it will not shift or float due to the pressure of the flow, and it can also be used to smooth the surface on which the synthetic resin is applied. Even if you touch it with a saw iron, etc., it will not shift or float.

Effects The adhesive-treated glass cloth of the present invention does not shift or lift when applied to synthetic resin floors, etc., so a finished state in which the glass cloth is correctly fixed in the proper position can be obtained.

Furthermore, since the adhesive-treated glass cloth of the present invention is coated with adhesive in advance, there is no need to apply adhesive each time at the coating site.

Furthermore, in the present invention, the glass cloth is covered over the entire surface, and is fixed to the release sheet at the opening with an adhesive bonded to the surface of the release sheet, so that the glass cloth is not attached to the floor before it is attached to the floor. The glass cloth does not peel off while being handled, and when it is pasted on the floor, the adhesive only on the threads of the glass cloth contributes to adhesion to the floor, and the adhesive on the openings is a release sheet. Since the synthetic resin adheres to and is removed, the synthetic resin is fully filled into the holes of the glass cloth during the synthetic resin coating, so the adhesive strength between the coating layer and the floor surface is high in the final finish, and the glass cloth also has a reinforcing effect. You can get enough.

Applications: Therefore, the adhesive-treated glass cloth of the present invention can be used for reinforcing various painted floors using synthetic resins such as polyurethane resin, epoxy resin, acrylic resin, or polyester resin, or for use with similar synthetic resins, other paints, or It is useful as a means for reinforcing various types of painting such as wall painting using mortar, and is also useful for making the coating thickness uniform during these applications.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing an example of the present invention, Fig. 2 is a perspective view showing an example of the glass cloth used in the present invention, and Figs. Both are sectional views, and FIG. 6 is a sectional view showing the state in which the one shown in FIG. 1 is attached to a floor surface. 1... Release sheet, 2... Glass cloth, 3
...Adhesive, 4...Intermediate, 5...Roll, 6...
…Floor.

Claims (1)

[Claims for Utility Model Registration] (1) On one side of the sheet, a glass cloth with square openings woven at a density of 2 to 8 fibers per 1 cm in length and width is placed, and an adhesive is further applied on top of the glass cloth. Adhesive processed glass cloth characterized by being coated over the entire surface. (2) The glass according to claim 1 of the utility model registration, characterized in that the releasability of the side of the sheet on which the glass cloth is placed is smaller than the releasability of the opposite side of the sheet. cross. (3) Utility model registration claim No. 1, characterized in that at least both surfaces of the sheet are made of polyethylene resin or polypropylene resin, and the surface on which the glass cloth is not placed is further subjected to mold release treatment. The adhesive-treated glass cloth described in item 2. (4) Claim 2 of the utility model registration, characterized in that at least both surfaces of the sheet are made of polyethylene resin or polypropylene resin, and the surface on which the glass cloth is placed is corona treated. Adhesive glass cloth as described. (5) The sheet is provided with a resin layer of polyethylene resin or polypropylene resin on one side of the paper, and the surface of the resin layer is further subjected to mold release treatment, as stated in claim 2 of the utility model registration claim. Adhesive treated glass cloth.