JP2000177038A - Suction sheet and its applied article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suction sheet which is not peeled off from the surface of glass and others in a usual condition but can be peeled off easily as required without leaving its trace. SOLUTION: On the surface of a printed base, an emulsion resin is added with a foam conditioner, a thickener, a crosslinking agent, a coloring agent, and others, agitated at a high speed, and expanded two-threefold to obtain a foamed emulsion. The foamed emulsion is supplied to a printed ground traveling in a coating machine, and the ground is coated while the thickness of the emulsion is controlled by a doctor knife. Immediately before entering a heat- drying oven, the coating layer is contacted with a scraper to open bubbles and to smooth the surface, and the shape of the bubbles is fixed by a crosslinking reaction generated during the passage through the oven to obtain a suction sheet 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adsorbing sheet which can be adsorbed on a smooth surface of glass, tile, enamel or the like and not peeled off in a normal use condition, and can be peeled off without leaving a trace when necessary. .

[0002]

2. Description of the Related Art Curtains have long been employed for the purpose of adjusting lighting in living spaces and blocking noise.

A sheet coated with a foamed emulsion resin has been disclosed as a sheet for light shielding, noise shielding, sound absorption, etc. (JP-B-59-10740).

[0004]

In the case of lighting control and noise blocking by a curtain, a curtain rail is necessary, and the lighting control depends on the degree of opening and closing of the curtain and adjusts the lighting evenly from the entire window. This is not possible, and when adjusting the ventilation, a hindrance occurs such that the suspended curtain swings and lighting becomes unstable.

[0005] In particular, there is a limit in the lighting control by a curtain in a huge glass window or a glass window (wall surface) having a curved surface, and measures such as imparting a light shielding property to the glass itself are taken.

[0006] In addition, since the surface of the coating layer of the foamed emulsion resin coating sheet has an uneven surface due to foaming, it cannot be adsorbed on a wall or glass surface by itself, and an adhesive layer is formed on the coated surface. Or using a double-sided adhesive tape.

[0007] In the conventional technique of sticking in this way, once pasted, it cannot be easily peeled off, and a trace of the sticking layer remains on the trace that has been peeled off. It must be done, and it is not easy to change the pattern.

In view of the above-mentioned problems of the prior art, the present invention adsorbs on the surface of glass, tile, enamel and the like and does not peel off in a normal state, but can be easily peeled off when necessary.
Woven fabric, non-woven fabric, paper,
Provide adsorption sheet made of plastic or metal foil sheet. Above all, it is difficult to adjust the lighting of huge glass window or curved glass window (wall surface), absorption and sound insulation, and change of interior design, which were difficult in the prior art. It is an object of the present invention to provide an adsorption sheet capable of easily performing the above.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a foamed emulsion obtained by adding a foam stabilizer to an emulsion resin and mechanically foaming the coated emulsion on one side of a sheet. By shaving the surface and opening the air bubbles, the sheet is selected from woven fabric, nonwoven fabric, paper, plastic, metal foil,
Alternatively, one obtained by laminating one selected from woven fabric, non-woven fabric, paper, and plastic with a metal foil, or one selected from woven fabric, non-woven fabric, paper, and plastic, And a resin composition containing a metal oxide on one selected from woven fabric, nonwoven fabric, paper and plastic.

[0010] The foam stabilizer is added in an amount of 2 to 5 parts by weight based on 100 parts by weight of the resin solid content, and 3 to 5 parts by weight of a crosslinking agent is added.

If the amount of the foam stabilizer is less than the above range, the size of the bubbles varies, and fine and fine bubbles cannot be obtained. On the other hand, if it exceeds the above range, the foaming is suppressed too much and the adsorbability is impaired.

If the amount of the crosslinking agent is less than the above range, the shape of the air bubbles is not fixed, and the air bubbles are crushed when the surface of the coating layer is shaved by a cutter, resulting in reduced adsorbability. Flexibility is impaired, resulting in poor adsorbability.

According to the present invention having the above-described structure, the coating layer formed on the surface of the sheet becomes a fine microbubble layer of 100 μm to 300 μm having appropriate flexibility, and the surface of the coating layer is removed. As a result, an adsorption sheet having a smooth surface in which irregularities due to bubbles are scraped off and fine bubbles are opened is obtained. Especially when the printed fabric is used as a sheet, the interior decoration can be applied according to the season.

The adsorbing sheet thus obtained can be used for controlling the lighting and decoration of a glass wall, especially a curved glass surface, a defrosting sheet for a front or rear glass of an automobile,
It can be used as a heat ray reflection sheet for automobile front, rear or window glass, a deodorizing sheet that also serves as interior decoration, a computer mouse operation mat, a table cloth, a coaster, a poster, and a projection screen.

[0015]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is an enlarged schematic sectional view of an embodiment according to the present invention. The suction sheet 9 is used for the printing fabric 1.
Foam stabilizer, thickener, cross-linking agent,
A coloring agent or the like is added, and the mixture is foamed 2 to 3 times by high-speed stirring, coated with the foamed emulsion 2, and the surface of this coating layer is shaved to make the surface smooth and to open bubbles.

The adsorption sheet 9 is made of the foamed emulsion 2
Is supplied to the print fabric 1 running on the coating machine 3 shown in FIG. 2 and coated while adjusting the thickness with a doctor knife 4. Immediately before entering the heating and drying furnace 5, a scraper 7 is applied to scrape the surface to remove air bubbles. The opening 8 forms a smooth surface, which is crosslinked and dried in the heating and drying furnace 5 to fix the shape of the opened bubble.

As the emulsion resin, acrylate copolymer emulsion, ethylene vinyl acetate emulsion, urethane resin emulsion, synthetic rubber latex and the like can be used. Preferably, it is soft at room temperature or slightly hard and has high elasticity. It is necessary to select and use resin.

The acrylate resin preferably has a glass transition temperature in the range of -30 to 25 ° C., and includes acrylic acid and methyl acrylate, ethyl acrylate,
Copolymers with acrylamide, butyl acrylate, styrene, methyl methacrylate, methacrylic acid, butyl methacrylate, and the like can be used.

As the foam stabilizer, an anionic activator or a silicone-based surfactant can be used, and the addition amount thereof is in the range of 2 to 5 parts by weight based on 100 parts by weight of the emulsion resin (solid content).

As the thickener, water-soluble glue, hydroxyethyl cellulose, carboxymethyl cellulose, ammonia thickened polyacrylate, or activator-based polyethylene glycol distearate can be used. The viscosity of the foamed emulsion is adjusted so as to be 1000 to 20,000 cps.

In order to cause a cross-linking reaction in the process of passing through a heating and drying oven to fix the shape of bubbles,
5 parts by weight of crosslinking agent are added. As the cross-linking agent, when water-soluble methylol melamine or non-formalin is required, carbodiimide-based, aridylin-based (ethyleneimine-based) can be used.

When light shielding properties are required, 20 to 30 parts by weight of titanium oxide and aluminum hydroxide are added. If the amount is less than the above amount, the light-shielding property cannot be obtained. If the amount exceeds the above amount, the flexibility is impaired, and as a result, the adsorptivity decreases.

[0023]

EXAMPLE 1 10 parts by weight of water, 20 parts by weight of aluminum hydroxide and 20 parts by weight of a mixture (solid content: 60%) obtained by emulsion-polymerizing a butyl acrylate copolymer and a methyl acrylate copolymer in one liquid Parts by weight, 5 parts by weight of a foam stabilizer (anion activator), and 5 parts by weight of a crosslinking agent (carbodiimide) are charged into a high-speed stirrer, and high-speed stirring is performed while injecting air and a viscosity modifier, so that the foaming ratio is about twice. A foamed emulsion having a viscosity of 3000 cps was prepared.

The foamed emulsion 2 is supplied to the print fabric 1 running on the coating machine 3 shown in FIG. 2, and the doctor knife 4 is adjusted to coat the fabric to a thickness of 0.5 mm to 1.0 mm. Just before entering, coating layer 6
The scraper 7 is applied to the surface of the glass to open the air bubbles and smooth the surface. A cross-linking reaction is caused during the passage through a heating and drying oven adjusted to 150 ° C. (passing time: 5 minutes) to fix the shape of the air bubbles. The suction sheet 9 of the invention is obtained.

[0025]

Example 2 10 parts by weight of water, 100 parts by weight of water, and 100 parts by weight of aluminum hydroxide were prepared by mixing a butyl acrylate copolymer and an ethylene vinyl acetate resin emulsion at a ratio of 50 to 50 (solid content: 55%). 20 parts by weight, 5 parts by weight of titanium oxide, 5 parts by weight of a foam stabilizer (silicone), and 5 parts by weight of a cross-linking agent (aqueous methylol melamine solution) are charged into a high-speed stirrer, and rapidly stirred while injecting air and a viscosity modifier. Thus, a foamed emulsion having a foaming rate of about 3 times and a viscosity of 3000 cps was prepared.

The foamed emulsion 2 is supplied to the printed fabric 1 running on the coating machine 3 shown in FIG. 2, and the doctor knife 4 is adjusted to coat the foamed emulsion 2 to a thickness of 0.5 mm to 1.0 mm. Just before entering, coating layer 6
The scraper 7 is applied to the surface of the glass to open the air bubbles and smooth the surface. A cross-linking reaction is caused during the passage through a heating and drying oven adjusted to 150 ° C. (passing time: 5 minutes) to fix the shape of the air bubbles. The suction sheet 9 of the invention is obtained.

In the above two embodiments, the foamed emulsion resin was coated on the print fabric. However, as the sheet to be coated, ordinary woven fabric, nonwoven fabric, paper, plastic, metal foil can be adopted. , A nonwoven fabric, paper, or a sheet obtained by laminating a metal foil on plastic can also be used. What coated the resin composition containing an oxide can also be employ | adopted.

As described above, various sheets can be coated with the foamed emulsion resin. However, if the sheet has fluff or irregularities, it is preferable to apply a surface smoothing treatment before coating the foamed emulsion resin. When it is necessary to improve the bonding with the foamed emulsion resin, the surface of the sheet may be subjected to an activation treatment or an intermediate layer of an adhesive medium may be provided.

The suction sheet described above can be used in the following fields.

As shown in FIG. 3, the suction sheet obtained by adopting the printed fabric 1 as the sheet is adsorbed to the window glass 23 to provide a lighting control, light shielding, and sound insulation sheet also serving as interior decoration. The print fabric 1 may be impregnated with a deodorant and a deodorant to perform both deodorization and deodorization.

The sheet is used as the non-woven fabric 10 for sound insulation, sound absorption,
It can be used as a heat insulating sheet, and it can be used for both deodorization and deodorization by impregnating the nonwoven fabric with a deodorant and a deodorant. In particular, as shown in FIG. 4, when employed in the window, rear, and windshield 12 of the automobile 11, a defrosting effect can be obtained.

As a sheet, an aluminum foil, a laminate sheet of a plastic film and an aluminum foil,
If various cloths are coated with a resin admixture containing aluminum scaly powder, the sheet becomes a heat ray reflective sheet. For example, as shown in FIG. Can be suppressed. In addition, if the strings 13 attached to both ends of the upper part of the suction sheet 9 are sandwiched between the door 14 and the door frame 15, it is possible to prevent theft and flying by strong wind.

[0033] A sheet employing a cloth coated with a resin admixture containing aluminum scale powder can also be used for a projection screen (not shown).

As shown in FIG. 5, a mat 18 for operating a mouse 17 of a computer 16 using the suction sheet 9 can be provided.

As shown in FIG. 6, the use of the elaborately designed printed fabric 1 makes it possible to obtain a table cloth 20 which is attracted to the table 19 and does not move.

As shown in FIG. 7, a coaster 21 can be obtained by cutting this suction sheet 9 into an appropriate shape.

As shown in FIG. 8, an indoor poster 22 to be adsorbed on a wall surface such as a bathroom 24 can be obtained by the adsorbing sheet 9.

[0038]

As described above, according to the present invention, it is adsorbed on a smooth surface and does not peel off in a normal use state, but can be easily peeled off when necessary, and a trace remains after peeling off. No suction sheet can be provided. In addition, woven fabric, non-woven fabric, paper, plastic,
Use of a metal foil, a laminated sheet of a metal foil and, for example, plastic, or a sheet in which a cloth is coated with a resin mixture containing a metal powder or a metal oxide expands various fields of application. When the sheet is impregnated with a deodorant / deodorant, a deodorizing / deodorizing effect can be obtained. If a printed fabric is used for the sheet, the interior decoration can be easily changed according to the season.

[Brief description of the drawings]

FIG. 1 is an enlarged schematic sectional view of a suction sheet according to the present invention.

FIG. 2 is a schematic front view of an apparatus for manufacturing the suction sheet according to the present invention.

FIG. 3 is a diagram showing the use of shading and lighting of a window glass.

FIG. 4 is a perspective view of (a) a sheet of a frost-resistant and heat ray reflecting sheet for an automobile, and (b) a perspective view of a state where the sheet is mounted on an automobile.

FIG. 5 is a diagram used for a mouse operation mat.

FIG. 6 is a diagram used for a table cloth.

FIG. 7 is a diagram used for a coaster.

FIG. 8 is a diagram used for an indoor poster.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Printed fabric 2 Foam emulsion 3 Coating machine 4 Doctor knife 5 Heating / drying oven 6 Coating layer 7 Scraper 8 Opening (of air bubbles) 9 Adsorption sheet 10 Nonwoven fabric 11 Automobile 12 Windshield 13 String 14 Door 15 Door frame 16 Computer 17 Mouse 18 Mat 19 table 20 tablecloth 21 coaster 22 indoor poster 23 window glass 24 bathroom

 ──────────────────────────────────────────────────続 き Continued on the front page F-term (reference) 4F100 AA17C AA19H AB01A AB01C AB33A AB33C AK01A AK01C AK25 AT00A BA02 BA03 BA07 BA10B BA10C CA02B CA23C CA30B DE01C DG10A DG12A DG15A DJ01BJEJBJEJB EJ02B08 JM01B YY00B

Claims (14)

[Claims] 1. An adsorbing sheet in which a foamed emulsion obtained by adding a foam stabilizer to an emulsion resin and mechanically foaming is coated on one surface of a sheet, and the surface of this coating layer is shaved to open air bubbles to smooth the surface. 2. The sheet according to claim 1, wherein the sheet is one selected from woven fabric, nonwoven fabric, paper, plastic, and metal foil.
4. The adsorption sheet according to 1. 3. The sheet according to claim 1, wherein the sheet is formed by laminating one selected from woven fabric, nonwoven fabric, paper, and plastic with a metal foil, and coating the non-metal foil surface with the foamed emulsion. 4. The adsorption sheet according to 1. 4. The sheet according to claim 1, wherein the sheet is one selected from a woven fabric, a nonwoven fabric, a paper, and a plastic, and a surface of the sheet not coated with the foamed emulsion is coated with a resin mixture containing a metal powder. 2. The adsorption sheet according to 1. 5. The method according to claim 1, wherein the sheet is one selected from a woven fabric, a nonwoven fabric, a paper, and a plastic, and a surface of the sheet not coated with the foamed emulsion is coated with a resin mixture containing a metal oxide. Item 2. The adsorption sheet according to Item 1. 6. An amount of the foam stabilizer added to the resin solid content of 100.
2 to 5 parts by weight to 3 parts by weight of the crosslinking agent.
The adsorption sheet according to any one of claims 1 to 5, further comprising parts by weight. 7. The adsorption sheet according to claim 1, wherein a sheet portion of the adsorption sheet is impregnated with a deodorant or a deodorant. 8. A mat for operating a mouse of a computer using the suction sheet according to any one of claims 1 to 6. 9. A coaster using the suction sheet according to claim 1. 10. An automobile frost protection sheet obtained by cutting and sewing the suction sheet according to claim 1 into a shape of a front or rear glass of an automobile. 11. A heat ray reflective sheet for an automobile, wherein the suction sheet according to claim 1 is cut and sewn into the shape of a front, rear or window glass of an automobile. 12. A table cloth using the suction sheet according to claim 1. 13. A poster using the suction sheet according to claim 1. 14. A projection screen using the suction sheet according to claim 4. Description: