JP3466933B2 - Adsorption sheet manufacturing method - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for adhering to a smooth surface such as glass, tile or enamel, which does not peel off in a normal use state, and leaves a trace when necessary. The present invention relates to a method for producing an adsorption sheet that can be peeled off neatly. 2. Description of the Related Art Curtains have long been used 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 daylighting control and noise blocking by a curtain, a curtain rail is necessary, and the daylighting adjustment depends on the degree of opening and closing of the curtain, and the daylight is evenly spread over the entire window. It is not possible to adjust the lighting, and when adjusting the ventilation, the suspended curtain swings and swings, and the 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 manner, 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. [0008] The present invention has been made in view of the conventional technology, glass,
Adsorbed on the surface, such as tile or enamel, without peeling in normal use, when needed can take easily peeled, stripped fabric trace does not remain in after the nonwoven fabric, paper, plastic, It intended to provide a process for producing the adsorption sheet of metal foil and sheets, among others, lighting regulation and intake and sound insulation of the prior art with glass windows having a large glass window or a curved surface which has been a difficult (wall), interior design It is an object of the present invention to provide a method of manufacturing an adsorption sheet that can easily change the size of an adsorption sheet. [0009] SUMMARY OF THE INVENTION The present invention in order to solve the above problems, the surface of the sheet, coated with a foamed emulsion resin, the opening of the foamed surface layer of the coating
In the method for producing an adsorption sheet, at least a foam stabilizer and a crosslinking agent are added to the emulsion resin,
By mechanical foaming so that the viscosity of 20000cps and foamed emulsion resin composition, and supplies it to the doctor coater was applied to the surface of the sheet fed out from the supply, disk before the coating layer is crosslinked <br /> to smooth the surface with is opened bubbles against the Draper, it is allowed to of crosslinking and drying the coating layer passed through a heating furnace
It is something to make . [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 cross-linking agent is less than the above range, the shape of the bubbles is not stable. When the surface of the coating layer is scraped by the scraper , the bubbles are crushed and the adsorptivity is reduced. adsorption of flexibility is impaired is poor. 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. Next, an embodiment of the present invention will 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 or slightly hard at room temperature 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. EXAMPLE 1 10 parts by weight of water was added to 100 parts by weight of a mixture (solid content: 60%) obtained by emulsion-polymerizing a butyl acrylate ester copolymer and a methyl acrylate ester copolymer in one liquid. 20 parts by weight of aluminum oxide, 5 parts by weight of a foam stabilizer (anion activator), and 5 parts by weight of a cross-linking agent (carbodiimide) are charged into a high-speed stirrer, and high-speed stirring is performed while injecting air and a viscosity modifier to reduce the foaming rate to about A foam emulsion having twice the viscosity and 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. EXAMPLE 2 10 parts by weight of water was added to 100 parts by weight of a resin composition (solid content: 55%) in which a butyl acrylate copolymer and an ethylene vinyl acetate resin emulsion were mixed at a ratio of 50:50. 20 parts by weight of aluminum hydroxide, 5 parts by weight of titanium oxide, 5 parts by weight of a foam stabilizer (silicone type), and 5 parts by weight of a crosslinking agent (aqueous methylol melamine solution) are charged into a high-speed stirrer, and air and a viscosity modifier are injected. By high-speed stirring, a foamed emulsion having a foaming ratio 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. As described above, according to the method of the present invention ,
The adsorbent sheet thus produced is adsorbed on a smooth surface and does not peel off under normal use conditions, can be easily peeled off when necessary, and can provide an adsorbent sheet with no trace left after peeling off. Was. The sheet woven fabric, nonwoven fabric, paper, plastic, and metal foil and metal foil and, for example, plastic Ramine DOO, various by employing the coated sheet resin blends containing a metal powder or a metal oxide to the fabric The field of application expands. 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. FIG. 4 is a perspective view of (a) a sheet of an anti-frost and heat ray reflective sheet for an automobile, and (b) a perspective view of a state where the sheet is mounted on an automobile. Fig. 6 Diagram used for table cloth [Fig. 7] Diagram used for coaster [Fig. 8] Diagram used for indoor poster [Description of symbols] 1 Printed fabric 2 Foam emulsion 3 Coating machine 4 Doctor knife 5 Heat drying oven 6 Coating layer 7 Scraper 8 Opening (bubbles) 9 Adsorption sheet 10 Nonwoven fabric 11 Car 12 Windshield 13 String 14 Door 15 Door frame 16 Computer 17 Mouse 18 Mat 1 Table 20 table cloth 21 coaster 22 indoor posters 23 window glass 24 bathroom

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B32B 1/00-35/00 F16B 47/00

Claims (1)

(57) [Claim 1] In a method for producing an adsorption sheet comprising coating a foamed emulsion resin on the surface of a sheet and opening a foamed surface layer of the coating, at least a foam stabilizer is added to the emulsion resin. was added and a cross-linking agent, 1000
A step of preparing a foamed emulsion resin composition by mechanical foaming to a viscosity of 20,000 cps, a step of supplying the same to a doctor coater and coating the surface of a sheet fed from a supply , and a step of coating the coating layer
Adsorption but characterized by comprising the step of crosslinking and drying a step of smoothing the surface with is opened bubbles against the scrapers, the <br/> coating layer is passed through a heating furnace prior to being crosslinked Sheet manufacturing method.