JPH0838394A - Toilet seat - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a toilet seat that can prevent positional displacement when placed on a toilet seat and has excellent handleability. [Structure] A toilet seat sheet in which a water-soluble plastic film 3 is laminated on a toilet seat mounting side of a paper 2 having water disintegration.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toilet seat, and more particularly to a toilet seat that is used by mounting it on the toilet seat of a Western flush toilet.

[0002]

2. Description of the Related Art Conventionally, in Western style flush toilets provided in theaters, movie theaters, and other places where an unspecified number of people use, in order to prevent hygiene and a cold sensation when sitting, It is widely practiced to prepare a toilet seat sheet to be placed on the toilet seat.

[0003]

However, in the conventional toilet seat sheet made only of paper, if the thickness of the paper is made thin for the purpose of cost reduction, there is a disadvantage that the waist is lost and the seat is displaced when sitting. . In addition, in order to prevent misalignment, some toilet seats are fixed by sandwiching them between the toilet seat and the toilet bowl, but the shape becomes complicated, and the toilet seat must be lifted during use. It is troublesome to handle.

Further, in the case of a toilet seat having a structure in which the central portion of the toilet seat mounting portion is cut off, although the cutout for cutting is provided in the cutting off portion, it may not be cut by a simple procedure, which is uncomfortable. Sometimes it happened.

[0005] Therefore, an object of the present invention is to provide a toilet seat sheet which can prevent positional displacement when it is placed on the toilet seat and is excellent in handleability.

[0006]

In order to achieve the above-mentioned object, the toilet seat sheet of the present invention is characterized in that a water-soluble plastic film is laminated on the toilet seat mounting side on one surface of a water-decomposable paper. I am trying.

That is, as shown in FIG. 1, the toilet seat sheet 1 of the present invention is a laminate comprising a water-decomposable paper 2 and a water-soluble plastic film 3, with the plastic film 3 facing downward. It is used by placing it on the toilet seat. When this toilet seat sheet 1 is placed on the toilet seat with the plastic film 3 side down and moved lightly, static electricity peculiar to plastic is generated in the plastic film 3. Although this static electricity is not felt by the body, it has a sufficient magnitude to prevent displacement of the toilet seat 1.
The toilet seat 1 is attracted to the toilet seat by static electricity and fixed, and the positional displacement of the toilet seat 1 can be prevented.

Further, since it is a combination of the water-decomposable paper 2 and the water-soluble plastic film 3, there is no problem in using it in a flush toilet. Further, compared with the conventional paper only, the plastic film 3 is laminated, so that it is strong and easy to handle.

As the paper 2, water dispersible paper or water-soluble paper having a thickness of about 30 to 70 μm, which has been conventionally used for toilet seat sheets and toilet paper of this type, can be used. The plastic film 3 is a water-soluble film such as a polyalkylene oxide-based film containing ethylene oxide as a main component or a polyvinyl alcohol film and has a thickness of about 30 μm. In particular, the polyalkylene oxide-based film containing ethylene oxide as the main component does not impair the water solubility even when heat-welded with the paper 2,
Furthermore, since it has a lower hygroscopicity than polyvinyl alcohol and does not become sticky even in high humidity such as the rainy season, it is particularly suitable as the water-soluble plastic film 3 used for the toilet seat sheet of the present invention.

As the polyalkylene oxide resin containing ethylene oxide as a main component, various kinds can be used, but a weight average molecular weight obtained by reacting the following compounds (A) and (B) is used. A resin of 50,000 or more is preferable.

(A) A polymer obtained by addition-polymerizing an alkylene oxide mainly composed of ethylene oxide to an organic compound having two active hydrogen groups. (B) At least one of a polyvalent carboxylic acid compound and a diisocyanate compound. Since this resin has excellent thermoplasticity, it can be easily formed by sheet processing and the thickness can be freely selected, and is suitable for mass production.

Examples of the organic compound having two active hydrogen groups include ethylene glycol, propylene glycol, bisphenol A, aniline polypropylene glycol and polytetramethylene glycol.

The alkylene oxide mainly composed of ethylene oxide to be addition-polymerized with these includes ethylene oxide alone or 70% or more of ethylene oxide.
Examples include a mixture with propylene oxide, butylene oxide, styrene oxide, α-olefin epoxide and the like.

The above-mentioned (A) is obtained by block-polymerizing or random-adding an alkylene oxide containing ethylene oxide as a main component to an organic compound having two active hydrogen groups. The weight average molecular weight of the reaction product (A) is obtained. Is 100
It is 0 or more, preferably 5000 to 30000.

Among the compounds (B) to be reacted with the above (A), the polyvalent carboxylic acid compounds include carboxylic acids such as phthalic acid, isophthalic acid, terephthalic acid, sebacic acid, dimer acid, pyromellitic acid, and the like. An anhydride or carboxylic acid lower alkyl ester can be mentioned.

As the diisocyanate compound,
Examples include tolylene diisocyanate, diphenylmethane diisocyanate, isophorone diisocyanate, xylidene diisocyanate, and the like.

The film can be easily formed from the above-mentioned polyalkylene oxide resin containing ethylene oxide as a main component by ordinary thermoplastic molding such as extrusion molding. The film may contain a heat stabilizer, an antioxidant, a colorant, etc., if necessary.

The paper 2 and the plastic film 3
Can be laminated by various bonding methods,
If both are adhered over the entire surface, curling may occur due to the difference in thermal expansion coefficient between them, which may impair the handleability during use. Therefore, it is preferable to adhere by laminating with point adhesion or a grid pattern. For example, a heat roll having a convex portion corresponding to a predetermined adhesive pattern and a receiving roll (the surface of which is preferably covered with an elastic body such as rubber) are heat-welded to each other by a normal method of nipping. Thereby, a laminated body can be easily obtained.

When the paper 2 and the plastic film 3 are adhered in a grid pattern, the grid spacing is 5 to 20.
It is preferable that the width is 1 mm and the width of the adhesive portion is 1 to 5 mm. At this time, if the lattice spacing is less than 5 mm, curling is likely to occur as in the case of whole surface adhesion, and if the lattice spacing exceeds 20 mm, the sheet is spread due to the floating between the paper 2 and the film 3, It is easy to tear when you slide it. Also in the case of spot bonding (spot welding), the spacing between the bonding points may be set to about 5 to 20 mm in the same manner as above.
Further, if the width (size of the dots) of the adhesive portion is too small, the adhesive force becomes weak, and conversely if it is too large, curling or waviness is likely to occur.

The shape of the toilet seat sheet is arbitrary, and for example, it may be U-shaped or O-shaped according to the shape of the toilet seat, but as shown in FIG. 2, the outer shape of the toilet seat sheet 1 is quadrangular. And a separation portion (front hanging portion) corresponding to the inner peripheral shape of the toilet seat 4 in the central portion of the toilet seat mounting portion of the seat 1.
5 may be provided, and the separating portion 5 may be cut out at the time of use.

When the separating portion 5 is provided, as shown in FIG. 2, the cutting line 6 is removed except for the rear side 5a of the separating portion 5.
In addition to the above, it is preferable to provide a front surface 5b with a full-surface adhesive portion 5c in which the paper 2 and the film 3 are adhered over the entire surface. When the toilet seat sheet thus formed is used, the toilet seat sheet 1 is placed on the toilet seat 4 with the film 3 on the lower side, and the front end portion 5b is pushed downward to cut the cutting portion 6 from the cutting line 6 to cut the front end portion 5b. Since the entire surface adhesive portion curls downward and hangs down in the toilet bowl, the separating portion 5 can be cut off more easily than in the past and the application can be quickly added. In the case of a toilet seat with a cleaning device, the front and back may be reversed.

Further, by forming the outer shape into a quadrangle as described above, it becomes easy to make a large number of toilet seat sheets continuous with each other through cut lines to form a roll shape.

[0023]

EXAMPLES Examples and comparative examples of the present invention will be described below. A polyalkylene oxide-based water-soluble film having a thickness of 30 μm and containing ethylene oxide as a main component
Lattice spacing 10 mm, on water-degradable sheet paper of μm
It is heat-welded with a grid width (heat seal width) of 2 mm, and the tip of the cut-off portion has a length of 10 before and after the cutting line.
A portion of 0 mm and a width of 100 mm was welded on the front surface to prepare a toilet seat sheet having a shape shown in FIG. 2 (Example 1).

Further, a toilet seat sheet was prepared in the same manner as in Example 1 except that the heat-welding pattern was dots having a diameter of 2 mm and the point spacing was 10 mm (Example 2). Furthermore, a conventional toilet seat sheet made of paper (comparative example) was prepared.

Then, the static friction coefficient and the dynamic friction coefficient between the plastic film surface of the toilet seat sheets of Examples 1 and 2 and the flat plate surface of the ABS resin, which is used as a toilet seat, are defined by JIS.
It was measured according to K-7125. Similarly, with respect to the toilet seat sheet of Comparative Example, the static friction coefficient and the dynamic friction coefficient with the flat plate surface of the ABS resin were measured. The measurement results are shown in the table below.

[0026]

Further, the electrification voltage of each toilet seat sheet when 10 kV was applied was measured by a measuring device (Static Honest meter: Shishido Shokai Co., Ltd.), but none of the toilet seat sheets could be measured.

Furthermore, when the toilet seat sheets of Examples 1 and 2 were placed on the toilet seat of the Western style flush toilet and moved lightly,
The toilet seat was stuck to the toilet seat due to static electricity. When the tip of the separating part was pushed downward in this state to break the cutting line, the tip of the separating part curled downward, and the separating part smoothly dropped into the toilet bowl. On the other hand, in the case of the comparative example, when it was placed on the toilet seat, the position was displaced, and the cutting of the separating portion was troublesome.

[0029]

As described above, since the toilet seat sheet of the present invention is formed by laminating the water-degradable paper and the water-soluble plastic film, it is placed on the toilet seat with the plastic film facing down. By lightly moving, static electricity peculiar to the plastic film is generated, and the toilet seat sheet is attracted to the toilet seat by the static electricity and is fixed, so that the positional displacement of the toilet seat sheet can be prevented.
Moreover, since the plastic films are laminated, it is strong and easy to handle.

Further, by curling the toilet seat sheet, it is possible to prevent curling from occurring by sticking the paper and the plastic film to each other by point bonding or a grid pattern.
By completely adhering only one end of the separating portion provided in the central portion of the toilet seat mounting portion, the separating portion can be cut off smoothly by curling the front bonding portion.

Further, by using a polyalkylene oxide film containing ethylene oxide as a main component as the water-soluble plastic film, there is almost no problem in terms of water solubility and hygroscopicity.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a configuration of a toilet seat sheet of the present invention.

FIG. 2 is a plan view showing an embodiment of the toilet seat sheet of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Toilet seat sheet, 2 ... Water-degradable paper, 3 ... Water-soluble plastic film, 4 ... Toilet seat, 5 ... Separation part, 5c ... Full adhesion part, 6 ... Cutting line

Claims (4)

[Claims] 1. A toilet seat sheet comprising a water-degradable paper and a water-soluble plastic film laminated on one side thereof. 2. The paper and the plastic film are laminated by point-adhesion, a separation part that can be separated from the toilet seat mounting part is provided in the central part of the toilet seat mounting part, and only one end of the separation part is entirely covered. It adhere | attached, The toilet seat sheet of Claim 1 characterized by the above-mentioned. 3. The toilet seat sheet according to claim 2, wherein the paper and the plastic film are adhered in a grid pattern instead of spot adhesion. 4. The toilet seat sheet according to claim 1, wherein the water-soluble plastic film is a polyalkylene oxide film containing ethylene oxide as a main component.