JPH08157804A - Seaming liquid for sheet-shaped floor material and seaming of sheet-shaped floor material - Google Patents

Abstract

PURPOSE: To obtain a seaming liquid for a sheet-shaped floor material capable of seaming joints in an excellent frosted state and free from clogging and to provide a method for seaming the joints of sheet-shaped floor materials. CONSTITUTION: This seaming liquid for a sheet-shaped floor material is composed of a binder resin, an organic solvent for the binder resin, a plasticizer and a water-containing silica powder having particle diameters of 0.5-5μm whose surfaces are coated with a silicone oil. The water-containing silica powder is mixed in an amount of 5-15 pts.wt. based on 100 pts.wt. of the binder resin. The objective seaming method is as follows. The seaming liquid 2, which contains a binder resin, an organic solvent for the binder resin, a plasticizer and a water-containing silica powder 3 having particle diameters of 0.5-5μm whose surfaces are coated with a silicone oil and is filled in a container 1, is injected into joint parts of the sheet-shaped floor materials laid on a bed of the floor in a state where edges closely contact to each other. Here, the liquid 2 is injected into the joints from a through hole 8 having a tip diameter of 0.2-1.0mm of a seaming tool. The seaming liquid 2 covers the upper faces of the edges of the both sheet-shaped floor materials and solidifies.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to polyvinyl chloride (PV
The present invention relates to a joint seam solution for a plastic sheet flooring such as C) and a joint seam method.

[0002]

2. Description of the Prior Art Most of the conventional sheet floor materials are PVC.
It is a sheet floor material. A seam method for this PVC sheet flooring is known as disclosed in, for example, Japanese Utility Model Publication No. 55-41320.

[0003]

In the conventional seam method, the luster of the joints was too great to generate a shine, and this shine impaired the aesthetics of the seat floor material that was constructed, and was disliked by the customer. A similar shine was also produced when jointing the joints using a cyanoacrylate instant adhesive such as Aron-α (trade name). Therefore, the particle size of 0.005
When 0.05 μm of dry Aerosil was added to the seam solution to seam the joint, it became matte, but in many cases, the Aerosil granules were clogged in the construction tool and the construction could not be performed.

[0004]

DISCLOSURE OF THE INVENTION The present invention provides a seam solution and a seam method for joints, which can joint seams with high efficiency and which also has a matting effect and does not spoil the aesthetics of the seam of a floor sheet. With the goal.

The present invention includes a seam for a sheet floor, which comprises a binder resin, an organic solvent for the binder resin, a plasticizer, and a hydrous silica powder having a particle size of 0.5 to 5 μm, which has been surface-treated with silicone oil. Liquid is the first gist,
Moisture-containing particles having a particle size of 0.5 to 5 μm, which are surface-treated with a binder resin, an organic solvent for the binder resin, a plasticizer, and silicone oil in the joint portion of the sheet flooring material in which the ends are adhered to each other on the floor substrate. A container is filled with a seam solution containing silica powder, the seam solution is injected into the joint through a hole having a diameter of the tip of the seam tool of 0.2 to 1.0 mm, and the seam solution is applied to both sheet floor ends. A second gist is a method for seaming a sheet floor material, which comprises coating and solidifying the upper surface of the part.

The present invention uses PVC as the binder resin.
And vinyl chloride-vinyl acetate copolymers are preferred. 100 parts by weight of this binder resin (hereinafter referred to as "part")
5 to 30 parts, preferably 10 to 15 parts or less of D
Add a plasticizer such as OP.

The solvent is also methyl-isobutyl ketone (M
IBK), acetone, xylene, and tetrahydrofuran (THF) are each preferably added to 20 parts with respect to 100 parts of PVC.
Add ~ 300 parts. The binder resin is dissolved from these organic solvents.

To the seam liquid of the present invention, silica powder in which the silanol groups of wet silica powder which is hydrous silica is surface-treated with silicon oil such as dimethylpolysiloxane having a low polymerization degree is added. Thus, the silanol group Si-
OH is changed to Si-OCH _3. The above-mentioned wet silica powder has a particle size of 0.5 to 5 μm, 5 to 15 parts, preferably 7-1.
Added in 2 parts seam. The surface-treated wet silica used in the present application has good dispersibility, and even if a relatively large amount is added to the seam solution, clogging does not occur in the seam solution container.

The seam method of the seat flooring material of the present application is shown in FIG.
The method shown in the sectional view of the construction method of FIG. Reference numeral 1 is a container, 2 is a seam liquid filled in the container, and 3 is wet silica well dispersed in the seam liquid. A cap 4 is fixed to the tip of the container by a screw 5, and a cap 6 and fins 7 are attached to the tip of the cap.

The mouthpiece and the fins are integrally filled with the seam liquid in a stable state and have a through hole 8 having a diameter of 0.2 to 1.0 mm from which wet silica does not solidify. , Is a very good dispersion, and is injected into the joint portion 9 of the sheet floor material that is constructed by adhering the ends to each other on the floor substrate, the seam liquid is filled in the joint interior 10, and both sheet floor material ends The upper surface 11 is covered and solidified. Thus, the construction method of the present invention is completed.

[0011]

The seam liquid contains hydrous silica powder surface-treated with silicone oil, and the through holes on the container side are filled with 0.2
By setting the thickness to 1.0 mm, the dispersibility of the silica powder is extremely good, and a matte seam of the joint can be formed without causing clogging.

[0012]

【The invention's effect】

1. Good mattness was obtained. 2. The wet silica dispersibility in the seam solution was good. 3. The seam fluid container did not become clogged and the joint construction could be performed with high efficiency.

[0013]

[Example] Two PVC foam sheet floor materials (CF-P Tori Co., Ltd.) were installed on the floor substrate with their joints so that their ends were in close contact with each other. The seam liquid of the formulation example of "Table 1" was poured into the joint portion in a container having a through hole having a diameter of 0.5 mm between the die and the fin portion.

[0014]

Table 1 Examples Comparative Example 1 Comparative Example 2 PVC 16 16 16 DOP 3 3 3 MIBK 33 33 33 33 Acetone 22 22 22 Xylene 22 22 22 THF 4 4 4 Wet silica (surface treatment) 1.6 7 Dry Aerosil 1. 6 Wet silica (untreated surface) 1.6 Matte resistance ◎ ○ ◎ Clogging resistance ◎ × ×

However, the average particle size of wet silica (both surface-treated and surface-untreated) is 2μ, and dry silica (dry aerosol) is 0.012μ.

The products of the examples of the present invention were free from clogging during the working process, and good matte seam portions were obtained with high workability.

On the other hand, when the seam solutions having the formulations of Comparative Examples 1 and 2 in "Table 1" were put in the same container as in Example 1 to seam the joints of the sheet floor material, the seam liquid was clogged in the container.

[Brief description of drawings]

 "Fig. 1" is a cross-sectional view of the seam construction method.

[Explanation of symbols]

1 ... container, 2 ... seam liquid, 3 ... hydrous silica powder, 8 ...
..Through holes, 9 ... Joints of seat floor materials

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location E04F 15/14 8702-2E 15/16 E 8702-2E

Claims (6)

[Claims] 1. A seam liquid for a sheet floor, comprising a binder resin, an organic solvent for the binder resin, a plasticizer, and a hydrous silica powder having a particle size of 0.5 to 5 μm which has been surface-treated with silicon oil. . 2. The hydrous silica powder is a binder resin 100.
The seam liquid according to claim 1, which is added in an amount of 5 to 15 parts by weight based on parts by weight. 3. The seam liquid according to claim 1, wherein 5 to 30 parts by weight of the plasticizer is added to 100 parts by weight of the binder resin. 4. The grain size of the surface of the sheet flooring material, which is constructed by closely adhering the end portions to each other on the floor substrate, a binder resin, an organic solvent of the binder resin, a plasticizer, and a silicone oil. A container is filled with a seam solution containing 5 to 5 μ of hydrous silica powder, and the seam solution is injected into the joint through a hole having a tip diameter of the seam tool of 0.2 to 1.0 mm, and the seam solution A method for seaming a sheet floor material, characterized in that the upper surface of both end portions of the sheet floor material is covered and solidified. 5. The diameter of the seam container is 0.2 to 1.0.
The method for constructing a sheet floor material according to claim 4, wherein a fin having a mm through hole is attached. 6. The method for constructing a sheet flooring material according to claim 4, wherein 5 to 15 parts by weight is added to 100 parts by weight of the hydrous silica powder binder resin.