JP2008274559A - Thin veneer blind slat and blind equipped with it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thin veneer blind slat constituted by a very thin laminated veneer causing no deformation of a shape of the veneer itself and having flexibility and restoration property. <P>SOLUTION: This thin veneer blind slat 10 is constituted by sticking the veneers 40, 40 to both faces of a core member 20 by using adhesive 30, 30 and forming a painted surface 50 on its surface to prevent moisture in the atmosphere from intruding into it. Preferably, the core member 20 is made of Japanese paper or nonwoven fabric, its areal density (weight by scale) is 30-200g/m<SP>2</SP>, and it contains natural fibers in a part or all the parts of it. Amount of the adhesive 30, 30 to be applied on both faces of the core member 20 is 10-500g/m<SP>2</SP>and is applied like a mesh or a thin mesh or in a form having an opening hole. The veneers 40, 40 having thickness of 0.1-2.0 mm are overlapped and heated and compressed to evaporate moisture in the veneers, melt the adhesive, shield them by an adhesive melted face, let them adhere closely, and memorize the shape of the veneers. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a thin single plate blind slat made of an extremely thin laminated single plate in which single plates are laminated and a blind including the same.

Conventionally, there are the following prior patent documents relating to a single-plate laminated structure that is likely to undergo shape deformation such as warping and twisting.
In Patent Document 1, a non-woven fabric layer is bonded and formed on the back surface of a thin plate (single plate) to form a wood sheet, and the wood sheet is adhered to the surface of a transparent plastic plate.
Patent Document 2 discloses that a molded member is formed by stacking a plurality of front and back single plates in an overlapped state with an adhesive on a core plate dried to a predetermined moisture content or less, and laminating on a mountain-shaped molded member and cold-pressing. A large number of plywoods having convex warpage along the upper surface shape of the plate are formed, the plywood is inserted into a hot press and pressed into a flat plywood, and the warping is reduced by the restoring force after pressing. When a decorative veneer is bonded to the surface of the floorboard plywood, the warp of the floorboard plywood is offset by shrinkage during drying of the decorative veneer It is.
In Patent Document 3, in a tray having a bottom wall and a peripheral wall extending across the bottom wall, the tray is made of a plurality of thin plate-like materials, and directions showing the same properties of these materials intersect each other. It is constructed by pasting together.
Patent Document 4 discloses that a wooden material is formed by press-fitting a pressurized gas that does not add water vapor such as air, nitrogen gas, and carbon dioxide into a sealed space where the wooden material is heated and pressurized to pressurize the sealed space to a predetermined pressure. Is permanently fixed.

Moreover, the following exists as a prior patent document regarding a blind slat using a laminated single plate.
In Patent Document 5, a fiber reinforced plastic layer is used as a core material, and wood-based thin plates are laminated on both surfaces of the core material.
In Patent Document 6, a board with natural wood is attached to a base material of slats, and this lacquer is applied to the surface of the board.
In Patent Document 7, a nonwoven fabric made of thermoplastic resin fibers is used as a core material, and wood is laminated and heated on the front and back surfaces to form a curved shape. .

JP 2002-144383 A Japanese Patent Laid-Open No. 08-132402 JP 09-169328 A Japanese Patent No. 3002197 Japanese Utility Model Publication No. 01-159094 Japanese Patent Laid-Open No. 08-042269 JP 2002-242556 A

However, the prior patent documents have the following problems.
(1) Patent Document 1 is combined with a thick non-deformable material (transparent plastic plate material) in order to prevent shape deformation of a single plate, and is not a combination of a single plate and a core material alone.
(2) Japanese Patent Application Laid-Open No. 2004-228561 is a technique that can be applied to a thick plywood for a floor board by compressing the plywood and reducing the warp by the restoring force after the pressing. It is not a technology that can be used for boards.
(3) Although patent document 3 is what makes the single board which shows the same property cross | intersect and cancels a curvature, it does not prevent the shape deformation of the single board itself.
(4) In Patent Document 4, a sealed space is prepared in a processing process of a wood material, and permanent fixation is achieved without giving moisture to the wood material by heating and pressurizing in the sealed space. Compared to the processing in a harsh environment, the burden of facilities and work is greater.
(5) Patent Documents 5 to 7 use a core material as a non-deformable material in order to prevent a single plate from being deformed and maintain a curved slat shape. Therefore, the deformation of the veneer itself cannot be prevented, and since the core material is made of a non-deformable material, there is a problem in the flexibility (flexibility) and the restoration property of the slats. In addition, Patent Document 7 has a problem in the flexibility and restoration of the slats because the scoring cuts are made over the entire length along the longitudinal direction.

  In response to these prior patent documents, the present invention provides a thin single plate blind slat composed of an ultra-thin laminated single plate having no shape deformation in the single plate itself and having flexibility and resilience, and a blind including the same. The present invention has been completed after extensive research and development.

To achieve the above object, a first aspect of the present invention, the basis weight a (basis weight) of ^{30g / m 2 ~200g / m 2} , natural fibers or synthetic fibers part or all for absorbing moisture Using the Japanese paper or non-woven fabric contained, after applying 10 g / m ^{2 to} 500 g / m ² of adhesive on both sides of the Japanese paper or non-woven fabric in a mesh or fine mesh shape or a form having an aperture, the thickness is 0.1 mm. 〜2.0mm single plate is stacked and heat-compressed for the purpose of single plate moisture evaporation, adhesive fusion, shielding / adhesion by adhesive melt surface, shape memory of single plate, total with flexibility and resilience A thin single plate blind slat comprising a thin laminated single plate having a smooth or two-dimensional or three-dimensional shape with a thickness of 0.2 mm to 5 mm.
Here, “natural fiber” refers to cocoon, cocoon, and cellulose, and “artificial fiber” refers to rayon.
As the “adhesive”, for example, a hot-melt resin, a vinyl acetate resin, or a rubber-based adhesive may be used as a thermoplastic adhesive. However, it is not restricted to these.
Further, the form of the “adhesive” may be an emulsion type, solvent type, mesh sheet type adhesive or the like.
In order to make flame retardant or non-combustible products, “single plate” can be made by impregnating a single plate with a flame retardant or flame retardant, but an oil-based flame retardant or flame retardant is added to the coating material. It can also be applied.
“Two-dimensional shape” means a curved shape that can show a cross-sectional shape by X-axis / Y-axis, and “three-dimensional shape” means a cross-sectional shape by X-axis / Y-axis / Z-axis This means a propeller shape that can be used.
The second invention uses the same or any combination of sliced veneers without selecting veneer material, thickness, wood cut direction, cutting method, compressed veneer or artificial veneer. A thin single plate blind slat characterized by
Here, “materials of veneer” include ebony, rosewood, persimmon, persimmon, planting, paulownia, persimmon, cedar, pine, walnut, cherry, beech, oak, birch, walnut, balsa, etc. The material of various materials can be used without being limited to. Similarly, the “thickness of wood” is not particularly limited, and various thicknesses can be used.
The "cutting direction of the wood" includes glazed and regular eyes (thawed so that it is almost perpendicular to the annual ring from the bark to the center, and has a grain that passes straight vertically), planks (in the annual ring from the bark to the bark) Timbers that are timbered and have a grain shape and corrugated grain), and annual rings (those that are sawn from wood and have grain of annual rings).
The single plate by the “cutting method” includes a rotary single plate (single plate sliced by a machine called rotary lace), a sliced single plate (also called a attached plate, processed by a machine called a slicer), a half rotary single plate ( This is an intermediate process of the former two, and is used for processing of precious wood.
According to a third aspect of the present invention, a heating mold set at a temperature of 100 ° C. to 120 ° C. is compressed at 10 MPa or less, preferably 5 MPa or less, and moisture in a single plate plant cell in contact with the heating mold is reduced from 5 seconds. Heating for 15 seconds evaporates the water on the veneer, passes through the gap between the adhesive layers applied to the Japanese paper or non-woven fabric, absorbs the water vapor on the veneer to the Japanese paper or non-woven fabric that is dried at a lower temperature than the veneer. A thin veneer blind slat in which moisture in plant cells is removed to prevent the deformation of veneer.
The invention prevents the penetration of moisture in the composition into the veneer that occurs when the adhesive having moisture in the composition adheres to the non-dried vinyl acetate resin applied to Japanese paper or nonwoven fabric. At the same time, moisture remaining on the veneer can be removed by evaporation (to be ensured by the combined use with the fourth invention).
Here, “single-plate plant cells” refer to large-diameter pipes, wood fibers, small-diameter pipes, axially soft tissues, and the like.
4th invention is the adhesive melt | dissolved in the metal mold | die high temperature environment by making thickness of Japanese paper or a nonwoven fabric into 0.05 mm-1.2 mm in order to make an adhesive osmose | permeate in the plant cell of a board | plate. A thin veneer blind slat that prevents excessive penetration into Japanese paper or nonwoven fabric and is formed by stress-penetrating adhesive into the broken plant cells of the veneer during high-pressure compression of the mold. is there.
The fifth invention pre-presses the mold pressure from 90% to 99.5%, transfers the shape and heat of the mold to the veneer, and removes moisture from the veneer while reducing the heat of the veneer. By transferring the heat of the mold to the adhesive with a time difference using conductivity, at a stage where the adhesive is melted, pressing at a pressure that does not destroy the wood cells or at 100% pressure at which the wood cells are restored after compression, The air remaining in the cells of the veneer is pushed out by a momentary press, and if necessary, the pressure of the mold is returned again from 90% to 99.5%, so that the adhesive melted by the veneer plant cell restoring force is planted. It is a thin single plate blind slat characterized by being cooled and formed by sucking and penetrating into cells.
According to a sixth aspect of the present invention, the adhesive that has penetrated into the plant cell is cooled at room temperature (at atmospheric temperature or lower) for 10 seconds with the upper and lower molds in a state of continuing the pressurization, and the molten adhesive is outside the cell and inside the plant cell. It is a thin single plate blind slat that is solidified to maintain a smooth or two-dimensional or three-dimensional shape.
In the seventh invention, the mouth including the front and back surfaces and the laminated surface of a thin single plate that is press-molded into a smooth or two-dimensional or three-dimensional shape is processed to a coating film thickness of 20 μm to 80 μm in the atmosphere. It is a thin single plate blind slat characterized by preventing moisture and moisture from entering.
The eighth invention is a blind provided with the first to seventh thin single plate blind slats.

According to the said invention, it has the following effects.
(1) A total thickness of 0.2 mm to 5 mm is extremely thin and has no shape deformation, and has a flexible (flexible) and restorative (flat), two-dimensional (curved) or three-dimensional (curved + twisted) A thin single plate blind slat composed of laminated single plates having a shape) can be provided.
(2) Since warpage and twisting of a single plate is prevented in the laminated structure / lamination method regardless of the material of the single plate or the cutting method, the single plate can be used. As a result, the wood can be used so that the blind slat pattern becomes a single plate with the blinds closed. In other words, by using a single plate of high-grade wood such as a precious wood, it is possible to represent the grain when the blind slats are shielded at night or when the slat surface is vertical during shading.
(3) Since the residual moisture of the veneer can be efficiently absorbed by the Japanese paper or the nonwoven fabric during the laminating step, shape stability (prevention of warpage and twist) is given to the veneer.
(4) Adhesive can be penetrated into single plate and core material (Japanese paper or non-woven fabric) reliably, evenly and three-dimensionally. As a result, not only adhesive performance but also shape stability (preventing warpage and twisting) in laminated single plate. ) And flexible and flexible.
(5) By using the grain of a single plate for a blind slat, it is possible to give a 1 / f fluctuation effect in which the curve of the grain is one of healing.
(6) By making the blind slats thinner, the blind winding structure can be reduced in weight. For example, it can be used for a gear-type rotating mechanism to a string stopper type.

Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an explanatory view (FIG. 1-1 is a perspective view, and FIG. 1-2 is a cross-sectional view) showing a structure of a thin single plate blind slat according to the present invention.
As shown in FIG. 1, the thin single plate blind slat 10 is formed in a two-dimensional shape (curved shape), and the single plate 40, 40 is attached to both surfaces of the core material 20 via adhesives 30, 30. The surfaces are laminated, and the surface is provided with a painted surface 50 for preventing moisture and moisture from entering the atmosphere.

The core material 20 uses a Japanese paper or nonwoven fabric having a basis weight (basis weight) of a ^{30g / m 2 ~200g / m 2} , she is preferable that natural fiber having a water absorbing property is included in some or all.
Here, one of the advantages of using Japanese paper or non-woven fabric for the core material 20 is excellent heat insulation performance.
That is, the following experimental results were obtained for the thermal conductivity of Japanese paper and nonwoven fabric.
・ 15 non-woven fabric layers 0.0246
・ Japanese paper (60g) 8 layers 0.0311
・ Japanese paper (65g) 8 layers 0.0320
(Unit: W / m · K)
On the other hand, the comparison value of other materials is
・ Styrofoam foam 0.03
・ Urethane foam material 0.02
・ PE 0.3-0.4
・ EP (epoxy) 0.19
・ PET 0.15
・ PP 0.12
From the above experimental results, it can be said that the thermal insulation property of the Japanese paper layer is the same as that of the foam material, and the thermal insulation property of the nonwoven fabric layer is similar to that of the foam material. In addition, although the nonwoven fabric is used for the core material in the said prior patent document 7, since this nonwoven fabric is heat-melted and made the state close | similar to a board, it is thought that thermal conductivity is close to PET etc., and this book It is understood that high heat insulation performance as in the invention cannot be obtained.

The adhesive 30, 30 applied to both sides of the core material 20 is applied to form a mesh or fine mesh-like or open hole in an amount of ^{10g / m 2 ~500g / m 2} .
Then, the single plates 40 and 40 having a thickness of 0.1 mm to 2.0 mm are stacked and heat-compressed for the purpose of single plate moisture evaporation, adhesive melting, shielding / adhesion by the adhesive melting surface, and shape memory of the single plate.
By adopting such an ultra-thin laminated structure with a total thickness of 0.2 mm to 5 mm, there is no deformation such as warping or twisting, and it has a smooth or two-dimensional or three-dimensional shape having flexibility and resilience. A thin veneer blind slat 10 can be provided.
Hereinafter, the reason will be described in detail based on the work process diagram.

FIG. 2 is an operation process diagram showing an operation process of the thin single plate blind slat 10 according to the present invention.
First, a portion related to “moisture evaporation” in the work process shown in FIG. 2 will be described.
FIGS. 3-6 is an image figure which shows the non-pressurization state, pressurization state initial stage, middle period, and late stage in order, and shows the mechanism of the water evaporation from the single plate 40 at the time of pressure compression.
When the single plates 40 and 40 are stacked on both surfaces of the core member 20 as shown in FIG. 3 (non-pressurized state) and heated and compressed from above and below by the molds 60 and 60, as shown in FIG. At the same time, the moisture 41 in the veneer 40 starts to evaporate. At this time, since the adhesive 30 interposed between the veneer 40 and the core material 20 is applied in a mesh or fine mesh shape or a form having an opening hole, the moisture 41 is as shown in FIG. Then, it passes through the gap between the adhesive layers and is absorbed by the core material 20. In this way, the moisture 41 in the single plate 40 is reliably removed, and the deformation of the single plate 40 is prevented from occurring. Here, when the moisture 41 passes through the adhesive layer, not only the natural passage through the gap of the adhesive layer but also a pinhole-like gap may be formed in the dissolved adhesive layer due to the pressure of evaporation of the moisture and crushed and ejected. .
In addition, in order to evaporate the water | moisture content 41 in the single plate 40, it is preferable to set the temperature of a heating-type metal mold to 100 to 120 degreeC, and to compress at 10 Mpa or less.

Further, as shown in FIG. 6 (late stage of the pressurization state), after the single plate 40 is heated and compressed, the adhesive 30 spreads evenly and securely bonds the core material 20 and the single plate 40.
As shown in the graph of FIG. 7, the temperature rise of the veneer 40 and the temperature rise of the adhesive 30 are shifted due to the heat insulating action of the plant cells of the veneer. Since the temperature rise of the adhesive 30 is delayed, the moisture 41 from the veneer 40 evaporates faster than the adhesive 30 is dissolved, and the core material 20 can absorb the moisture 41 through the gaps in the adhesive layer. Become. On the contrary, after the heat compression, the adhesive 30 spreads evenly, so that the movement of moisture from the core material 20 to the single plate 40 is prevented by the adhesive layer.

Such a technique for evaporating (removing) the moisture 41 from the veneer 40 is based on an extremely clever structure that uses the temperature increase between the veneer 40 and the adhesive 30.
In addition, as is often seen in conventional techniques, a single plate that has been dried in advance is often used in order to prevent deformation of the single plate. However, even if it is a dried veneer, when it is stored in a general indoor environment, it may absorb moisture in the atmosphere and may be deformed in some cases. Therefore, the water removal method according to the present invention is extremely effective for the purpose of maintaining the uniformity of the product.

Next, a portion related to “additional pressure (heating)” (during a two-stage shot) in the work process shown in FIG. 2 will be described.
FIG. 8 is an image diagram showing an additional compression state at the time of two-stage shot.
That is, in the first stage, the pressure of the mold 60 is pre-pressed at 90% to 99.5%, and the shape and heat of the mold 60 are transmitted to the veneer 40 and the moisture 41 of the veneer 40 is removed. The heat of the mold 60 is transmitted to the adhesive 30 with a time difference using the low thermal conductivity of the single plate.
In the second stage, when the adhesive 30 is melted, by pressing at a pressure that does not destroy the wood cells, or at 100% pressure at which the wood cells are restored after compression (at the time of the two-stage shot), as shown in FIG. Then, air (residual air) 42 remaining in the cells of the veneer 40 is pushed out by a momentary press, and if necessary, the pressure of the mold 60 is again returned from 90% to 99.5% (see “Addition” in FIG. 2). Pressure release "), the adhesive 30 melted by the plant cell restoring force of the veneer 40 is sucked into the plant cells and penetrated.
Reference numeral 61 denotes a heater for heating provided in the mold 60, and reference numeral 62 denotes a water-cooled tube for cooling.

FIG. 9 is an image diagram showing a penetration state of the adhesive 30 into the plant cells.
As shown in FIG. 9, since the adhesive 30 surely penetrates the plant cells of the veneer 40, the adhesion between the core material 20 and the veneer 40 is made strong. In the first place, unless the adhesive 30 penetrates both the core material 20 and the single plate 40, high adhesiveness and excellent flexibility / restorability effects cannot be expected. Even if it is highly possible that most of the adhesive melted depending on the thickness or material of the core material 20 penetrates into the core material 20, according to this method, the adhesive 30 is bonded between the core material 20 and the veneer 40. It is possible to penetrate both.

FIG. 10 is a graph showing a deformation state in the stacking process section of the single plate 40.
The lamination process division of the single plate 40 corresponds to * 1 to * 4 in the work process diagram shown in FIG.
According to the graph shown in FIG. 10, * 1 (single plate only), * 2 (at the end of lamination bonding), * 3 (at the end of cooling and solidification), * 4 (at the end of moisture-proof coating) alone or continuously It can be seen that the veneer 40 is greatly deformed when the above is performed. On the other hand, when the above steps are all or selectively performed continuously or within 3 hours, the veneer 40 is not deformed.
Here, when the pre-dried veneer is continuously used, it is possible to proceed to the subsequent process without using the moisture evaporation process (work process diagram / D).
However, if the pre-dried veneer is stored in a non-humidity controlled environment, or if cutting, slitting, and punching processes are added, the moisture in the atmosphere is higher or higher than the dry state of the veneer cells. In a short time, moisture and moisture in the air is absorbed into the veneer cells from the cut end or cut surface, and re-pre-drying or drying in the subsequent process is required. Not suitable for mass production.
Further, in order to finish the production process within a short time, the shape must be stored in the laminated single plate while being compressed into a mold. Further, if the moisture-proof treatment is not performed, the shape is deformed.
In addition, about (* 3) in the deformation state in a process division, in the case of non-cooling, since it takes time to dry an adhesive, it is not suitable for mass production.

In addition to the above, other embodiments of the present invention include the following (not shown).
(1) The veneer 40 may be colored arbitrarily by coloring the veneer 40 or coloring the paint.
(2) The longitudinal direction of the blind slats 10 may be a grain of wood in the combination of the front and the plate, and the width direction of the blind slats 10 may be a grain of wood. By setting the width direction as the grain, when the blind slat 10 is used vertically (when the blind is closed), the grain is expressed in the vertical direction.
(3) Even if the single board sliced from the same timber is used by combining the grain of the single board 40, 40 bonded to both sides of the core material 20 into the horizontal and vertical lines ((2) above), the slats are different on both sides. Available.
(4) Examples of the paint constituting the painted surface 50 applied to the surface of the veneer 40 include beeswax and lacquer. In addition, nitrocellulose paint, alkyd resin paint, amino alkyd resin paint, acrylic resin paint, amino acrylic resin paint, vinyl resin paint, enamel paint, epoxy paint, urethane paint, oil-based Paints, oil varnishes, resin varnishes, polyurethane resin paints, polyester resin paints, chlorinated rubber paints, silicone resin paints, phthalic acetate resin paints, ash paints, fluororesin paints, etc. It is not limited to.

  The present invention can be widely used for a thin single plate blind slat and a blind including the same.

The perspective view for explanation which shows the structure of the thin single board blind slat concerning the present invention. Sectional drawing for description which shows the structure of the thin single-plate blind slat which concerns on this invention. The work process figure which shows the work process of the thin single board blind slat which concerns on this invention. Explanatory drawing of the non-pressurization state of the laminated single board in a work process. Explanatory drawing of the pressurization state initial stage of the laminated single board in a work process. Explanatory drawing of the pressurization state middle period of the laminated single board in a work process. Explanatory drawing of the latter half of the pressurization state of the laminated single board in a work process. The graph which shows the relationship between a metal mold | die pressure, a single plate temperature, and adhesive agent temperature. The image figure which shows the additional compression state at the time of a two step shot. The image figure which shows the osmosis | permeation state to the plant cell of an adhesive agent. The graph which shows the deformation | transformation state in the lamination process division of a single plate.

Explanation of symbols

10 Thin single plate blind slats 20 Core material (Japanese paper or non-woven fabric)
30 Adhesive 40 Single plate 41 Moisture 42 Residual air 50 Paint surface 60 Mold 61 Heater 62 Water-cooled tube

Claims (8)

Basis weight and (basis weight) of a ^{30g / m 2 ~200g / m 2} , using a paper or non-woven natural fibers or artificial fibers for absorbing moisture contained in part or all,
After application to both surfaces of the paper or nonwoven fabric adhesive 10g / m ² ~500g / m ² to form a mesh or fine mesh-like or open hole,
A single plate having a thickness of 0.1 mm to 2.0 mm is stacked and heated and compressed for the purpose of single plate moisture evaporation, adhesive melting, shielding by the adhesive melt surface, adhesion, and shape memory of the single plate, A thin single plate blind slat composed of a thin laminated single plate having a smoothness or a two-dimensional or three-dimensional shape having a total thickness of 0.2 mm to 5 mm.   The thin unit according to claim 1, wherein the sliced single plate is used in the same kind or in any combination without selecting a single plate material, thickness, wood cut direction, cutting method, compressed single plate or artificial single plate. Board blind slats. The heating mold set at a temperature of 100 ° C. to 120 ° C. or less is compressed at 10 MPa or less, and the moisture in the veneer plant cells in contact with the heating mold is heated for 5 seconds to 15 seconds, so that the moisture on the veneer is reduced. Evaporate
3. The prevention of occurrence of deformation of the veneer by absorbing the vapourized moisture of the veneer into the washi paper or the nonwoven fabric that has been dried at a lower temperature than the veneer through a gap between the adhesive layers applied to the washer or nonwoven fabric. Thin veneer blind slats.   In order to allow the adhesive to penetrate into the veneer plant cells, the thickness of the Japanese paper or non-woven fabric is set to 0.05 mm to 1.2 mm, so that the adhesive melted in the mold high temperature environment can be applied to the Japanese paper or non-woven fabric. The thin veneer blind slat according to any one of claims 1 to 3, which is formed by preventing excessive penetration and stress-penetrating an adhesive into a plant cell in which a veneer is broken during high-pressure compression of a mold.   Pre-pressing the mold pressure from 90% to 99.5%, transferring the shape and heat of the mold to the veneer, and taking advantage of the low thermal conductivity of the veneer while removing moisture from the veneer The heat of the mold is transferred to the adhesive with a time lag, and when the adhesive melts, the pressure that does not destroy the wood cells is pressed. The remaining air is pushed out by a momentary press, and the pressure of the mold is restored again from 90% to 99.5% as necessary, and the adhesive melted by the veneer plant cell restoring force is sucked into the plant cells. The thin single plate blind slat according to any one of claims 1 to 4, wherein the thin single plate blind slat is formed by cooling by penetration.   The adhesive that has penetrated into the plant cells is cooled for 10 seconds with the upper and lower molds at room temperature (below the ambient temperature) while the pressure is continuously applied. The thin single-plate blind slat according to any one of claims 1 to 5, wherein a three-dimensional shape is maintained.   Prevents moisture and moisture from entering the atmosphere by treating the lip including the front and back surfaces and laminated surfaces of thin single plates that have been pressed into a smooth or two-dimensional or three-dimensional shape to a coating thickness of 20 to 80 μm. The thin single-plate blind slat according to any one of claims 1 to 6.   A blind comprising the thin single plate blind slat according to claim 1.

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