JP2003266610A - Decorative sheet and decorative material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a decorative sheet 1 having a lustrous print layer 13 having a metallic style lustering feeling and/or a high concealability and excellent chemical resistance such as alkali resistance or the like and to provide a decorative material using the same. <P>SOLUTION: A lustering pigment to be blended in the lustrous print layer 13 contains a metal powder pigment such as an aluminum powder or the like, and a pearly luster pigment such as a titanium oxide-coated mica or the like. Preferably, 5 to 20 pts.wt. of the pearly luster pigment is blended with 10 to 25 pts.wt. of the metal powder pigment, and blended with 20 to 30 pts.wt. of a binder. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interior material such as a wall material, a ceiling material, a floor material and a building material in a building such as a house, a fitting such as a door, a furniture fixture, an electric home appliance and an exterior of a household appliance. TECHNICAL FIELD The present invention relates to a decorative sheet for use in surface makeup such as materials, interior materials for transportation equipment such as vehicles, and a decorative material using the same. More specifically, for the purpose of imparting a metallic-like glittering design expression or a high degree of hiding, a glittering printing layer containing a glittering pigment is provided on the surface of the base material sheet, and a decorative sheet, The present invention relates to a decorative material using the same.

[0002]

2. Description of the Related Art As described above, a metallic-like (metallic-like) glittering design expression that cannot be realized by a printing layer using a usual coloring pigment, and a cosmetic material are used. As a decorative sheet for applications requiring extremely high concealing properties such that the surface of the base material cannot be seen through, conventionally, a base material sheet made of paper or a synthetic resin film is provided with a bright pigment made of light-reflecting fine particles. Decorative sheets provided with a glittering printing layer containing them are already widely used. As the glitter pigment, for example, a metal powder pigment having excellent light-reflecting property and light-shielding property, such as aluminum powder or bronze powder, is generally used (Japanese Patent Laid-Open No. 5-64870 and Japanese Patent Laid-Open No. 5-67070). 111991, etc.).

However, the above-mentioned metal powder pigments generally have a drawback that they are poor in chemical resistance, for example, they are easily dissolved, oxidized or discolored by the action of acid or alkali. In particular, aluminum powder, which is most commonly used as a metal powder pigment, has very weak alkali resistance, and when a decorative sheet using this, for example, a household alkaline detergent adheres, the aluminum powder dissolves in alkali. Therefore, there is a problem that the brilliance and the concealing property are lost.

Generally, a top coat layer made of, for example, a urethane resin, an aminoalkyd resin, an acrylic resin or the like is often applied on the printed layer of the decorative sheet,
Since this top coat layer is originally formed of a resin that can be applied by being dissolved in a solvent, its shielding property against chemicals is not so high as compared with a thermoplastic resin film, and its thickness is also high. At most several μm to several tens of μm
Partly thin, the function of protecting the glitter printing layer from chemicals is not always sufficient.

On the other hand, a transparent thermoplastic resin film is used as the base sheet, and a glitter printing layer is formed on the back side thereof, or on the glitter printing layer on the surface of the base sheet. The above-mentioned problem of chemical resistance can be sufficiently solved by adopting a constitution in which transparent thermoplastic resin films that do not allow chemicals to permeate are laminated.

[0006] However, first, in the former case, as a base sheet for a decorative sheet, in the case of using a paper which is inexpensive and has excellent printability, and a colored and opaque thermoplastic resin film which is excellent in hiding property and stability of color tone, , Of course, cannot be applied. On the other hand, the latter requires additional material costs such as a transparent thermoplastic resin film to be laminated and adhesives for lamination, and processing costs in the lamination process. Since the thickness of the decorative sheet is increased by the amount of the laminated plastic resin film, it is difficult to cope with the use where an inexpensive decorative sheet or a thin decorative sheet is required.

Therefore, as a method capable of improving the chemical resistance of the glitter printing layer without changing the entire structure of the decorative sheet or the material of the base sheet, a metal powder pigment is used instead of the above-mentioned metal powder pigment. There is also one using a pearlescent pigment such as titanium oxide-coated mica which has a light reflectivity similar to that of the above and is more excellent in chemical resistance than a metal powder pigment (JP-A-6-262735, JP-A-2000). -62081).

However, the above pearlescent pigment obtains a light reflection effect by utilizing the light interference effect of the transparent thin film,
Compared with the metal powder pigment, both the light reflectance and the light shielding property (low light transmittance) are inferior. Therefore, depending on the decorative sheet using the pearlescent pigment, there is a problem in that it is not possible to obtain a decorative sheet having a high-luminance metallic luster comparable to a decorative sheet using a metallic powder pigment and a high hiding property.

[0009]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems in the prior art. The object is to provide a metallic (metallic) luster feeling. And / or a decorative sheet having a glittering printing layer having a high degree of hiding on the surface of a substrate sheet, wherein the glittering printing layer has excellent chemical resistance such as alkali resistance, and a glittering feeling and / or It is an object of the present invention to provide a decorative sheet capable of maintaining the hiding property for a long period of time and a decorative material using the decorative sheet.

[0010]

SUMMARY OF THE INVENTION The present invention provides a decorative sheet (provided that at least a glitter printing layer formed of a glitter printing ink containing a glitter pigment is provided on the surface of a substrate sheet, provided that the heat (Except for decorative paper for curable resin decorative board), the glittering pigment contained in the glittering printing layer is a mixture of a metal powder pigment and a pearlescent pigment.

The present invention also provides the above decorative sheet,
The luster pigment is a mixture of 10 to 25 parts by weight of a metal powder pigment and 5 to 20 parts by weight of a pearlescent pigment.

The present invention also provides the above decorative sheet,
The glitter printing ink has a solid content of metal powder pigment 1
It is characterized in that it contains 0 to 25 parts by weight, 5 to 20 parts by weight of pearlescent pigment, and 20 to 30 parts by weight of binder.

The present invention also provides the above decorative sheet,
It is characterized in that the base sheet is a paper selected from thin paper, resin-impregnated paper, resin-mixed paper and inter-paper reinforced paper.

The present invention also provides the above decorative sheet,
It is characterized in that a top coat layer is provided on the surface.

Further, the present invention is a decorative material characterized in that any one of the above decorative sheets is laminated on the surface of a base material for decorative material.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a decorative sheet and a decorative material of the present invention will be described below in detail with reference to the drawings. 1 and 2 are side sectional views showing an embodiment of a decorative sheet of the present invention, and FIG. 3 is a side sectional view showing an embodiment of a decorative material of the present invention.

As shown in FIG. 1, the decorative sheet 1 of the present invention has a substrate sheet 11 on which a metallic powder pigment such as aluminum powder and a pearlescent pigment such as titanium oxide-coated mica are brilliant pigments. And at least a glitter printing layer 13 formed by the glitter printing ink containing.

The glitter printing layer 13 may be provided in any pattern, or may be provided in a solid shape as shown in FIG. Further, the same glitter printing ink or a plurality of glitter printing inks having different types, particle diameters, blending ratios, etc. of glitter pigments are used, and a plurality of solid and / or patterned glitter printing layers are used. 13 may be provided in combination.

Further, in addition to the glitter printing layer 13, a solid print and / or a normal printing ink containing no glitter pigment is used.
Alternatively, the pattern-like ordinary print layers 12 and 14 may of course be provided together.

In the present invention, the material of the base sheet 11 is not particularly limited, and the same material as that used in the conventional decorative sheet can be used. Specifically, for example, thin paper, resin-impregnated paper, resin-mixed paper, paper such as inter-paper reinforced paper,
Woven or non-woven fabric, polyvinyl chloride resin, polyolefin resin, polyester resin, film or sheet made of thermoplastic resin such as acrylic resin, synthetic paper, metal foil, veneer, etc., or a mixture or mixture of two or more of them. A body, a laminated body or the like can be arbitrarily used.

In particular, thin paper, resin-impregnated paper, resin-mixed paper,
Paper such as inter-paper reinforced paper is rich in the acceptance of printing ink due to the entangled structure of the fibers, so it contains a bright pigment with a particle size larger than that of ordinary coloring pigments, so it has a low internal cohesive power. Printing inks have good ink receptivity and good adhesion to the glitter printing layer 13, and when the normal printing layers 12 and 14 are provided, selection of printing inks usable therefor It is most desirable for the purpose of the present invention because it has a wide range, can express various designs, is inexpensive, and has good workability such as adhesion.

The thickness of the base sheet 11 is not particularly limited, but in general, the basis weight of paper is 20 to 150 g / m ²
Degree, 10 to 200μ if it is a thermoplastic resin film, etc.
The thing of about m is used.

It is important that the glitter printing layer 13 formed on the surface of the base sheet 11 is formed of a glitter printing ink containing both a metal powder pigment and a pearlescent pigment as glitter pigments. is there.

As the metal powder pigment, gold powder, silver powder, copper powder,
Aluminum powder, bronze powder, zinc powder, stainless powder,
Nickel powder, etc. can be used, but the glitter (reflectance),
Aluminum powder is most preferable in terms of dispersibility in printing ink, economy (price), and the like.

As the metal powder pigment such as aluminum powder,
It is also possible to use a paste which is prepared by adding a solvent such as propylene glycol monomethyl ether or a surface treating agent to metal powder and kneading the mixture.

As the pearlescent pigment, fish scale powder such as swordfish, basic lead carbonate, lead hydrogen arsenate, bismuth oxide chloride, titanium oxide-coated mica, iron oxide-coated mica and the like can be used. Titanium oxide-coated mica is most preferable in terms of harmlessness, brilliance (reflectance) and the like.

The titanium oxide-coated mica is classified into white gloss and interference gloss depending on the thickness of the titanium oxide coating, and any of them can be used for the purpose of the present invention. However, in the case where the glitter printing layer 13 is required to have a high degree of hiding, it is desirable to use a white glossy one that exhibits a high light reflectance for light in a wide range of wavelengths.

As for the particle shape of the bright pigment, it is general to use a scale-like particle for both the metal powder pigment and the pearlescent pigment.

The particle size of the bright pigment is 1 to 25 in average particle size.
Various materials having a particle size of about 0 μm are commercially available, and those having an appropriate particle diameter may be selected from them depending on the desired glitter feeling. In the present invention, the average particle diameter is determined from the glitter feeling and printability. The one having a thickness of about 5 to 50 μm can be most preferably used.

Incidentally, in addition to the bright pigment, for example, a dye, a coloring pigment, an extender pigment, etc. may be appropriately added to the bright printing ink.

In the present invention, the reason why the metal powder pigment and the pearlescent pigment are used in combination as described above is that the glitter printing layer 13 is used.
The decorative sheet 1 has high light reflectivity and light shielding property, is excellent in metallic luster and hiding power, and is also excellent in chemical resistance (particularly alkali resistance) of the glitter printing layer 13. Is to get.

That is, as described above, the pearlescent pigment is excellent in chemical resistance and the like, but is inferior in brilliance and hiding power. On the other hand, the metal powder pigment (especially aluminum powder) is
It has excellent brilliance and hiding power, but poor chemical resistance (especially alkali resistance).

On the other hand, when the metal powder pigment and the pearlescent pigment are used in combination, the presence of the metal powder pigment having a higher light reflectance and a lower light transmittance as compared with the case where only the pearlescent pigment is used, It is possible to obtain an excellent metallic luster and a high degree of hiding, which cannot be obtained only by the pearlescent pigment.

On the other hand, as compared with the case where only the metal powder pigment is used, the presence of the pearlescent pigment having excellent chemical resistance causes the metal powder pigment to be affected by the chemicals to have the light reflecting ability and the light shielding ability. Even if it is lost at all, the glittering feeling and the hiding power of the decorative sheet 1 are not completely lost.

Not only the brilliance of the metallic powder pigment,
The disappearance due to the action of chemicals is much slower than the case where the metal powder pigment is used alone, and it is difficult to completely disappear.

This is because both the scaly metal powder pigment and the pearlescent pigment overlap each other in the film of the glitter printing layer 13, so that the pearlescent pigment is placed on the surface or both surfaces are pearlescent pigment. The metal powder pigment that is present in the film in a state of being sandwiched between is shielded from chemicals by the pearlescent pigment that has excellent chemical resistance, and thus is less susceptible to the action of chemicals, and therefore its excellent It is considered that the luster and the concealing property can be maintained for a long period of time.

In addition to the above, the addition of a pearlescent pigment can be used to reduce the blending amount of the metal powder pigment, which is a factor of deteriorating the printability of the glittering printing ink, to the extent that the glittering and hiding properties are compensated for. As a result, the printability of the glitter printing ink is improved, and defective printing, uneven printing, and plate picking in multicolor printing (a part of the printing ink once printed adheres to the printing ink plate to be printed next). Of the top coat layer 15 and the like during handling before coating (a phenomenon in which the printed film becomes fine powder and peels off when the printed surface is rubbed), etc. It also has the advantage of enabling clear printing.

In order to sufficiently achieve the above object, the compounding ratio of the metal powder pigment and the pearlescent pigment is such that the metal powder pigment is 10 to 10.
It is preferable to set the ratio in the range of 5 to 20 parts by weight to 25 parts by weight of the pearlescent pigment.

However, in the above range, the total amount of the metal powder pigment and the pearlescent pigment is preferably 30 to 40 parts by weight.

When the amount of the metal powder pigment is relatively less than the above range, it is difficult to obtain a sufficient luster and hiding power.
On the other hand, if the amount of pearlescent pigment is small, it is difficult to obtain sufficient chemical resistance (alkali resistance), and it also causes deterioration of printability.

There are no particular restrictions on the type of binder that is blended in the glitter printing ink together with the glitter pigment, and it is used in the glitter printing ink or conventional printing ink that has been conventionally used in the printing and manufacturing of decorative sheets. It can be used by arbitrarily selecting it from the various binders that have been used.

Specifically, for example, an oily binder such as nitrified cotton, cellulose acetate, acrylic resin, urethane resin, vinyl chloride-vinyl acetate copolymer resin, casein, polyacrylamide resin, polyvinyl alcohol resin, water-soluble salt. Type acrylic resin, emulsion resin (acrylic, vinyl acetate, urethane, styrene, etc.),
Aqueous binders such as latex-based resins (styrene-butadiene-based, acrylonitrile-butadiene-based, methylmethacrylate-butadiene-based, etc.) and the like can be used.

Regarding the compounding ratio of the luster pigment and the binder, if the amount of the binder is relatively too large, the luster feeling and the hiding property become insufficient, and conversely, if the amount of the binder is too small, printing of the luster printing ink is carried out. There is a case where the suitability is deteriorated, and it is easy to cause inking defects during printing, uneven printing, plate picking, and the like, or the chalking of the glitter printing layer 13 is likely to occur during handling after printing. .

Therefore, the blending ratio of the bright pigment and the binder needs to be appropriately designed within the range where the above-mentioned inconvenience does not occur. According to a trial study by the present inventors, 10 to 25 parts by weight of the metal powder pigment and 5 of the pearl luster pigment are contained as the solid content.
When the blending ratio is in the range of 20 to 20 parts by weight and the binder is 20 to 30 parts by weight, the result is that the decorative sheet 1 has the best balance in all performance aspects.

As described above, the decorative sheet 1 of the present invention can be provided with the ordinary printing layers 12 and 14 which are solid and / or patterned in addition to the glitter printing layer 13. As the printing ink used to form the normal printing layers 12 and 14, the same binder as the binder of the glitter printing ink used to form the glitter printing layer 13 is added to a pigment other than the glitter pigment (organic pigment and / or An ordinary printing ink prepared by blending an inorganic pigment) and / or a coloring agent such as a dye may be used.

The glitter print layer 13 and the ordinary print layers 12 and 14
As a printing method for forming the, for example, gravure printing method, gravure offset printing method, offset printing method,
Flexographic printing method, dry offset printing method, screen printing method, letterpress printing method, electrostatic printing method, various conventionally known printing methods such as inkjet printing method, in the case of solid state, for example, roll coating method, gravure coating method, From various conventionally known coating methods such as microgravure coating method, rod coating method, kiss coating method, knife coating method, air knife coating method, die coating method, lip coating method, comma coating method, spray coating method, flow coating method, etc. It may be selected appropriately.

The topcoat layer 15 is applied to the decorative sheet 1 of the present invention in order to impart excellent surface physical properties such as surface hardness, abrasion resistance, scratch resistance, solvent resistance and stain resistance to the surface thereof.
Can be provided.

The top coat layer 15 may be provided by laminating a decorative sheet before the formation of the top coat layer 15 on the surface of the base material 2 for decorative plate and then applying a coating, but the top coat is previously formed on the surface. When the decorative sheet 1 provided with the layer 15 is provided, the decorative material can be easily produced by simply laminating the decorative sheet 1 on the surface of the base material 2 for decorative plate, and further, up to the lamination. There is an advantage that each printed layer can be protected during handling.

It should be noted that the thicker the topcoat layer 15 is, the more advantageous it is to improve the surface physical properties.
If the thickness is too thick, the decorative sheet 1 loses flexibility, and the suitability for laminating on the base material 2 for decorative material may deteriorate. In such a case, a thin top coat layer 15 having repaintability is provided in advance on the decorative sheet 1, and after being laminated with the base material 2 for decorative material, coating is performed again to obtain a sufficient thickness. It is preferable to provide the top coat layer 15.

The material of the top coat layer 15 is not particularly limited, but generally, from the requirements of physical properties, for example, a two-component curable urethane resin, aminoalkyd resin, curable acrylic resin, melamine resin, epoxy resin. Curable resins such as thermosetting resins such as resins, phenolic resins, unsaturated polyester resins, and ionizing radiation curable resins such as (meth) acrylate resins, unsaturated polyester resins, epoxy resins, etc. Often adopted.

If necessary, the top coat layer 15 may include, for example, an ultraviolet absorber, a light stabilizer, a heat stabilizer, an antistatic agent, an antibacterial agent, an antifungal agent, a lubricant, a luster modifier, and an antifriction agent. The additive can be added as appropriate.

The top coat layer 15 has a structure in which it is uniformly provided on the entire surface as in the examples shown in FIGS. 1 and 2, and for example, a plurality of types of paints having different gloss states are used, and at least a part thereof is used. By providing the pattern in an arbitrary pattern, a three-dimensional design is provided by a change in the gloss state of the surface, or printing with a resin-absorbent printing ink or a liquid-repellent printing ink is performed before the top coat layer 15 is applied. By forming the layer, the top coat layer 15 can be formed only on the portion where the printing layer is not formed, and a three-dimensional design feeling due to unevenness or gloss change can be imparted.

The surface of the top coat layer 15 is printed with a normal printing ink, a glitter printing ink, a matte printing ink or the like in an arbitrary pattern so that the glitter printing layer under the top coat layer 15 can be formed. It is also possible to give a three-dimensional design feeling by changing the positional relationship with the standard printing layer 13 and the normal printing layer 14 depending on the viewing angle.

As shown in FIG. 3, the decorative material of the present invention comprises the above decorative sheet 1 of the present invention laminated on the surface of a base material 2 for decorative material.

The material of the base material 2 for decorative material is not particularly limited in the present invention, and the same material as that in the conventional decorative material can be used.

Specifically, for example, wood (solid wood), plywood, laminated wood, veneer laminated wood, oriented board, medium density fiber board, hard fiber board, particle board, and other wood-based base materials, glass, Ceramics, gypsum board, diatomite board, calcium silicate board, slate board, wood wool cement board, slag cement board, slag gypsum board, glass fiber reinforced concrete, inorganic base materials such as lightweight cellular concrete, iron, brass, aluminum, stainless steel And the like, synthetic resin-based materials such as fiber reinforced plastics, and the like, or a mixture, a composite, a laminate of a plurality of types thereof, and the like can be used.

The method of laminating the base material 2 for decorative material and the decorative sheet 1 is not particularly limited in the present invention, and is the same as in the case of the conventional decorative material. Specifically, it is most common to adhere with the adhesive layer 3, but in addition,
Depending on the material of both, for example, thermocompression bonding method, ultrasonic fusion method,
The decorative sheet 1 is formed at the same time as the bonding method such as the high-frequency fusion method, the extrusion laminating method, or the base material 2 for the decorative material is formed by, for example, the hot pressing method, the extrusion molding method, the injection molding method, the cast molding method, or the like.
It is also possible to apply a method of laminating the.

[0058]

EXAMPLES Using various glitter printing inks having the compositions shown in the table below, a glitter printing layer having an abstract pattern and a normal printing ink (nitrification ink) were formed on the surface of the inter-paper reinforced paper having a basis weight of 30 g / m ^2. An ordinary print layer (three-color overprint) of an abstract pattern using cotton is sequentially printed and formed by a multi-color printing machine, and finally a coating amount of the two-component curable urethane resin is 5 g / m2 after drying. Was applied to form a top coat layer, and the decorative sheets of Example 1 and Comparative Examples 1 to 3 were produced.

Glittering printing ink composition (solid content, numerical values are parts by weight) Glittering pigment binder Aluminum powder Pearl powder Nitrified cotton Example 1 12.5 10 20 Comparative Example 1 17.5 20 Comparative Example 2 10 20 Comparative Example 3 17.5 20 Note) Aluminum powder: Aluminum powder (particle size 10 to 15μ) Pearl powder: Titanium oxide coated mica (particle size 10 to 60μ)

For each of the above decorative sheets, printing stability, glitter and alkali resistance (alkali resistance test of JAS special plywood: 1% sodium carbonate aqueous solution, watch glass coating 6
When the time) was evaluated (all were visually evaluated), the results are shown in the table below.

Evaluation results (excellent: ○ ← → △ ← → ×: poor) Printing stability Brightness Alkali resistance Example 1 ○ ○ ○ Comparative example 1 × ○ × Comparative example 2 ○ × △ Comparative example 3 ○ × ◎

[0062]

As described above in detail, the decorative sheet of the present invention and the decorative material using the same use the metal powder pigment and the pearlescent pigment together as the bright pigment to be blended in the bright printing layer. Therefore, it could not be realized when either one of them was used alone, it had an excellent metallic luster and a high degree of hiding and chemical resistance (especially alkali resistance).
It has a remarkable effect that it can be compatible with both.

Further, as compared with the case where only the metal powder pigment is used, the printability of the glitter printing ink is improved, and it is possible to stably manufacture a decorative sheet having a metallic (metallic) luster and a high concealing property. Become. Further, by appropriately designing the compounding ratio of the metal powder pigment and the pearlescent pigment within the range specified in the present invention, from a high metallic luster close to specular reflection to a soft pearly luster, any stage It is also possible to express the glossiness, and it is possible to express the design of various glosses that have never existed before.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an embodiment of a decorative sheet of the present invention.

FIG. 2 is a side sectional view showing an embodiment of a decorative sheet of the present invention.

FIG. 3 is a side sectional view showing an embodiment of a decorative material of the present invention.

[Explanation of symbols]

1 ... Makeup sheet 11. Base material sheet 12 ... Solid normal printing layer 13 ... Bright printing layer 14 ... Patterned normal printing layer 15 Topcoat layer 2 ... Base material for cosmetics 3 ... Adhesive layer

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 4F100 AB01B AB01H AB10H AC05H                       AJ06 AK01B AK51 AT00A                       BA02 BA03 BA10A BA10C                       CA13B CC00B CC00C DG10A                       GB08 GB48 HB31B JB01                       JN22B JN22H JN24B JN24H                       YY00B YY00H                 4J038 CG001 DA041 DA161 DB001                       DD181 DG001 NA04 NA05                       NA11 PA17                 4J039 AB02 AB07 AD01 AD03 AD04                       AD06 AD08 AD09 AD11 AD12                       AD15 AE04 BE01 CA03 CA06                       GA01 GA02 GA03 GA10 GA24

Claims (6)

[Claims] 1. A decorative sheet having at least a glitter printing layer formed of a glitter printing ink containing a glitter pigment on the surface of a base sheet (provided that a decorative paper for a thermosetting resin decorative plate is provided. The decorative sheet according to claim 1, wherein the glitter pigment contained in the glitter printing layer is a mixture of a metal powder pigment and a pearlescent pigment. 2. The bright pigment is a metal powder pigment 10 to 25.
The decorative sheet according to claim 1, which is a mixture of 5 parts by weight and 5 to 20 parts by weight of the pearlescent pigment. 3. The glitter printing ink, as a solid content,
10 to 25 parts by weight of metal powder pigment and 5 to 20 pearlescent pigment
The decorative sheet according to claim 1 or 2, which comprises 20 parts by weight of a binder and 20 to 30 parts by weight of a binder. 4. The base sheet is thin paper, resin-impregnated paper,
The decorative sheet according to any one of claims 1 to 3, which is a paper selected from resin-mixed paper and inter-paper reinforcing paper. 5. The decorative sheet according to claim 1, wherein a top coat layer is provided on the surface. 6. A decorative material, characterized in that the decorative sheet according to any one of claims 1 to 5 is laminated on the surface of a base material for decorative material.