JPH07112521A - Decoration sheet - Google Patents

Abstract

PURPOSE: To provide a decorative sheet or film wherein the trailing property to tertiary curved surface is favorable, the heat-resistance is excellent, a beautiful formation of hairline patterns or hologram patterns or the like is possible, and a UV device is not required. CONSTITUTION: In this decorative sheet including a stabilizing resin layer 1 and a decorative layer 2 which is adjacent to the rein layer 1, or a decorative sheet including a stabilizing resin layer which has a decorative surface comprising an unevenness, the stabilizing resin layer 1 is a urethane resin containing a siloxane bonding in the molecule.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to labels, stickers, stripes and the like used for decorative purposes and the like. The present invention relates to labels, stickers, stripes, etc. that can retain their original appearance, especially when applied to a substrate while it is thermally stressed or stretched.

[0002]

2. Description of the Related Art It can be attached (adhered) to a substrate,
Several films or composites are known which can protect the substrate or give the substrate a decorative appearance, such as a metallic appearance. A composite material obtained by vapor-depositing a metal such as aluminum, chromium, tin or the like on a polyester film or a film similar thereto or having a pressure-sensitive adhesive or an adhesive is known as a CH-2 film manufactured by US 3M Company. Due to the characteristics of the film, these films were poor in conformability to a curved surface and could be adhered substantially only to a quadric surface (a sphere having a diameter of 15 cm could be adhered only to a square having a side of 3 cm). Further, recently, there is a hologram (PET) film or a material similar to this on which a hologram pattern is reproduced, and there is a material which is adhered or adhered to it. It could not be attached to a base material having a curved surface.

Japanese Unexamined Patent Publication (Kokai) No. 2-64187 discloses a metallic luster pressure-sensitive adhesive film using a fluorine-containing resin film.
Although this film has flexibility, it has many fish eyes because it uses a fluorine-containing resin, so even if you try to make a hairline or form a hologram pattern, you can not make a commercially valuable and clean one,
Also, it is necessary to plasma-treat the surface during printing,
There is a problem that the price is high.

Japanese Unexamined Patent Publication (Kokai) No. 3-140242 discloses a decorative composite material in which a radiation curable resin is used for a stabilizing layer of a metal vapor deposition layer. However, since this composite material uses a radiation curable resin, the irradiation radiation is cured. There is a problem that a device is required and the heat resistance is generally poor.

[0005]

The objects of the present invention are as follows. (A) good followability to a three-dimensional curved surface, (b) excellent in heat resistance, (c) when there is a decorative layer, excellent adhesion between the decorative layer and the stabilizing resin layer, (d) beautiful hairline treatment, It is to provide a decorative sheet that is capable of hologram processing when required, and (e) is inexpensive and (f) does not require an irradiation device.

[0006]

The first aspect of the present invention comprises:
In the decorative sheet including the stabilizing resin layer and the decorative layer, the summary is a decorative sheet in which the stabilizing resin layer is a polyurethane resin having a siloxane bond in the molecule. In addition, in the present invention, the “sheet” is a concept including a so-called sheet or film.

A second aspect of the present invention is a decorative sheet comprising a stabilizing resin layer and a hologram-treated surface or a hairline-treated surface, wherein the stabilizing resin layer is a polyurethane resin having a siloxane bond in the molecule. Use as a summary.

In addition, the present invention may include a pressure-sensitive adhesive layer and / or a support layer depending on the use mode.

The constituent features of the present invention will be described below.

The stabilizing resin layer of the present invention mechanically holds the decorative layer when the decorative sheet is stretched to fit a three-dimensional curved surface while being heated at room temperature or at a temperature up to about 160 ° C. Have the function to It also has a function as a mechanical support layer when a decorative layer or a decorative surface is provided on the decorative sheet.

In the present invention, the reason why the polyurethane resin having a siloxane bond in the molecule is used in the stabilizing resin layer is as follows.

(A) Excellent elongation due to the properties of the siloxane bond and the urethane resin. Therefore, the ability to follow a three-dimensional curved surface is extremely good.

(B) Since it has a siloxane bond in the molecule, it has good heat resistance. Therefore, specifically, 160
It is possible to withstand temperatures of ~ 260 ° C.

(C) Since it has a hydroxy group linked to silicon in the molecule, when the decoration layer is present, it partially reacts with it to mechanically reinforce the decoration layer and improve the adhesion with the decoration layer. . Therefore, even if the decorative film is stretched while being heated, there is no possibility that micro-cracks will occur in the decorative layer and whitening will occur.

(D) The heat resistance of the stabilizing resin layer is high, and when the decorative layer is provided, the adhesive force with the decorative layer is excellent, so that the vapor deposition process and the embossing process can be easily controlled, and the siloxane bond is not contained. The metal deposition, hairline treatment, and hologram treatment, which are beautiful and highly reproducible, are possible as compared with the conventional urethane resin.

(E) It is cheaper than conventional expensive fluorine-based resins.

(F) Further, unlike the radiation-curable resin, the radiation-ray device is not necessary, the variation is small, the reproducibility is good, and the resin can be easily manufactured.

The siloxane bond in the urethane resin containing the siloxane bond in the molecule means a -Si-O- unit, and in the present invention, the unit preferably has 1 to 1000 repeating units. This is because the heat resistance of the urethane resin is improved if there is at least one siloxane bond, while if it exceeds 1000, the reactivity between the hydroxy group and the isocyanate group at the time of forming a urethane bond is greatly reduced.

The urethane resin is a resin having a urethane bond in the molecule. Specifically, it can be obtained by reacting a hydroxyl group such as a polyol with an isocyanate group. In particular, a cross-linked urethane resin has good heat resistance and can be preferably used in the present invention.

The polyol means a compound having two or more hydroxy groups in the molecule and includes diol, triol and the like. The polyol used in the production of the urethane resin containing a siloxane bond in the molecule used in the present invention is disclosed in Japanese Patent Application Laid-Open No. HEI 5/1993.
Polyols having a siloxane bond in the molecule and having a diol or triol at the terminal described in -97868 are preferable. It is also possible to use a polysiloxane having two or more alkoxy groups bonded to a silicon atom which is easily hydrolyzed in the presence of water. Since this polyol has a siloxane bond in the molecule, the resulting urethane resin has good heat resistance, oxidation resistance, extensibility, and surface property. Furthermore, the adhesiveness and adhesion to metal, glass and the like are good, and it is particularly suitable for the decorative sheet of the present invention. Furthermore, since it has a hydroxy group at the terminal, it has good reactivity with isocyanate groups, and since a polyol with a wide range of molecular weights can be used, it can be used in various ways depending on the application requiring heat resistance and high elongation. This is because it can be used.

In addition, various functional groups such as polyester, polyether, carboxyl, phenyl, methyl, ethyl, acryl and amino groups may be introduced into the polyol suitable for the present invention. This is because the decorative sheet can be controlled in heat resistance, adhesive strength, extensibility and the like. In particular, the polyol having a benzene ring described in JP-A-4-41493, such as 1,3-bis (p-hydroxybenzyl) -1,1,3,3-tetramethyldisiloxane and its derivative is particularly resistant to heat. It is suitable for the present invention in that it has good properties.

Isocyanates suitable for use in the production of the urethane resin used in the present invention include aromatic, araliphatic, aliphatic, and alicyclic isocyanates, for example,
Diphenylmethane-4,4'-diisocyanate (MD
I), tolylene diisocyanate (TDI), hexamethylene diisocyanate, isophorone diisocyanate, dicyclohexylmethane-4,4'-diisocyanate, naphthylene diisocyanate (NDI), and end block types thereof can be exemplified. Trimers of these isocyanates have excellent heat resistance,
Particularly, trimers such as isophorone diisocyanate (IPDI) and hexamethylene diisocyanate (HDI) are suitable for the present invention because they have excellent heat resistance and can form a urethane resin that does not yellow.

The above-mentioned polyol and isocyanate can be reacted to produce a polyurethane resin containing a siloxane bond in the molecule, which is suitable for use in the present invention.

The thickness of the stabilizing resin layer in the present invention is not particularly limited, but it is 0.1 to 500 μm when a supporting layer is provided separately, and 1 when there is no supporting layer.
0 to 1000 μm is preferable. This is because, if the support layer is not separately provided, if it is less than 10 μm, the mechanical reinforcing effect is poor, and if it exceeds 1000 μm, the three-dimensional followability is poor, and the cost may be increased. On the other hand, when the support layer is separately provided, the stabilizing resin layer can be made thinner than when the support layer is not provided.
If it is at least μm, the above-mentioned effect of the stabilizing resin layer can be obtained. Further, when the support layer is separately provided, if the thickness exceeds 500 μm, the thickness of the entire decorative sheet becomes large, and the three-dimensional followability may be poor.

The decorative layer is defined as a layer having a decorative effect adjacent to the stabilizing resin layer, and includes a printing layer, a metal thin film layer, a hologram layer, a hairline layer, etc., or a combination thereof. The decorative layer may be provided on at least one side of the stabilizing resin layer, and may be provided on both sides of the stabilizing resin layer. The effect of the present invention is remarkably obtained when a metal thin film layer, a hologram layer or a hairline layer, of which heat resistance is a problem, is provided as the decorative layer.

Next, the decorative layer will be specifically described. The decorative layer is composed of a print layer, a metal thin film layer, a hologram layer, a hairline layer, etc., alone or in combination.

(A) Printed layer: The printed layer is a vinyl chloride sheet or polyester sheet on which characters, symbols, figures, etc. are displayed by ink, a decorative tape, or the like, or a direct ink is used. It can be provided on the resin layer or the support layer. In particular, when a decorative sheet is provided with a support layer, it generally has good adhesion to ink and the like, which is preferable.

(B) Metal thin film layer: This layer is made of Al, C
It is made of a metal such as r, Sn, Au, Ag, Ni, Ti, or TiO ₂ , a metal oxide, or a metal sulfide such as ZnS. The thickness is not particularly limited, but a thickness of 50 to 5000 angstroms is preferable in consideration of productivity, decorativeness, adhesion to the stabilizing resin layer, mechanical strength, and the like. Note that this layer can be formed by a sputtering method, an electron beam method, a vacuum vapor deposition method, a plating method, a laminating method, or the like.

(C) Hologram layer: What is a hologram layer?
Depending on the viewing angle, the light reflection direction and amount should be different,
The surface has fine irregularities (hereinafter referred to as hologram pattern),
It is defined as a so-called holographically processed decorative layer.
This layer can be provided by finely embossing a polyester sheet, a polypropylene sheet, an acrylic sheet, a vinyl chloride sheet, or the like.

(D) Hairline layer: What is a hairline layer?
It is defined as a decorative layer having a hairline pattern, and is provided with a fine wavy, straight line, semicircular pattern or the like having a length of several μm or more and a depth of several angstroms to several μm on the surface. This layer can be provided by subjecting a polyester sheet, a polypropylene sheet, an acrylic sheet, a polyvinyl chloride sheet or the like to a fine polishing roll process.

When the present invention is used as a decorative sheet, it is practically preferable that a pressure-sensitive adhesive layer is provided in advance so that it can be directly applied to a decorative base material. The position of the adhesive layer may be on the outer surface of the decorative sheet, may be in contact with the decorative layer as shown in FIG. 1, or may be in contact with the stabilizing resin layer or the support layer as shown in FIGS. It may be. When the pressure-sensitive adhesive layer is in contact with the decorative layer, the decorative layer can be protected from the external enemy environment by the stabilizing resin layer and the supporting layer, so that the durability of the decorative layer is significantly improved. However, when the pressure-sensitive adhesive layer is in contact with the decorative layer, it is desirable that the pressure-sensitive adhesive layer is substantially transparent so as not to impair the decorative property of the decorative sheet. When the pressure-sensitive adhesive layer is in contact with the stabilizing resin layer or the supporting layer and a vinyl chloride resin is used for the decorative layer,
A plasticizer is indispensable for this decorative layer, but it is possible to prevent a decrease in adhesive strength due to bleeding of the plasticizer.

For the pressure-sensitive adhesive layer, specifically, an acrylic, urethane, epoxy, rubber or silicone adhesive or the like can be used. In particular, a silicone-based tackifier or adhesive is suitable for the present invention because it has high heat resistance, good extensibility, and good adhesion with the stabilizing resin layer. In addition,
In addition, a filler, a cross-linking agent, a reinforcing material and the like can be added to the pressure-sensitive adhesive layer of the present invention in order to improve heat resistance, hiding power and handleability.

The thickness of the pressure-sensitive adhesive layer is not particularly limited, but usually 1 μm to 5 mm is preferable in consideration of the pressure-sensitive adhesive force and the ease of production. The pressure-sensitive adhesive layer can be provided on the decorative sheet by a laminating method or a coating method. In such a case, since a polyurethane resin having a siloxane bond in the molecule is used for the stabilizing resin layer, it has excellent heat resistance and solvent resistance, and it is possible to directly coat an adhesive on the stabilizing resin layer. Is.

The decorative sheet of the present invention can include a support layer. The support layer has the following functions in the present invention.

Step (a) Film: When the raw material of the stabilizing resin layer is coated on the supporting layer to cure the stabilizing resin layer or when laminating the stabilizing resin layer, further, It serves as a process film when the pressure-sensitive adhesive layer is provided.

(B) Reduction of the amount of the stabilizing resin layer used: The polyurethane resin having a siloxane bond in the molecule, which is used for the stabilizing resin layer, is much cheaper than the fluororesin, This is because it is more expensive than an ordinary urethane resin, and therefore it is preferable that the amount used is as small as possible.

(C) Reinforcement of self-supporting property and heat resistance: This is for further enhancing the self-supporting property and heat resistance of the decorative film depending on the application.

(D) Improving the durability of the decorative sheet: This is to protect the decorative surface of the decorative sheet from external environmental influences such as ultraviolet rays, oxygen, mechanical stimuli, etc. to improve the durability of the decorative sheet.

Therefore, in order to ensure such a function,
Specifically, it is preferable to use a resin film of polyvinyl chloride, polyurethane, acrylic, polyester, polypropylene, polyimide, polyamide or the like as the support layer. The thickness of the support layer is not particularly limited, but the support layer can be used within a range not impairing the three-dimensional conformability and decorativeness, which are the objects of the present invention. Specifically, a thickness of 10 μm to 3 mm is suitable.

The supporting layer is in contact with the stabilizing resin layer in order to fulfill the function as a process film, but for other purposes, it is in contact with the stabilizing resin layer. , You don't have to be in touch.

The support layer can be peeled off if necessary after the decorative sheet is applied to the base material, or can be left as it is.

Further, in order to improve the adhesion between the support layer and the stabilizing resin layer, it is possible to separately provide an adhesive layer between them.

Next, the hologram processing surface and the hairline processing surface will be described. The above-mentioned hologram treatment or hairline treatment may be directly applied to the stabilizing resin layer, or a support layer may be provided and the support layer may be subjected to hologram treatment or hairline treatment. Further, it is also possible to combine metal deposition processing after performing such hologram processing or hairline processing.

In the present invention, it is possible to improve the usability of the decorative sheet by providing a release film on the adhesive layer without departing from the objects, effects and the like of the present invention.

An example of the first aspect of the present invention is shown in FIG.
In this figure, 1 is a stabilizing resin layer, 2 is a decorative layer, 3 is a support layer, and 4 is an adhesive layer. In this example, one surface of the stabilizing resin layer 1 is in contact with the decorative layer 2, for example, a metal vapor deposition layer or a hologram layer, the other surface is in contact with the supporting resin layer 3, and the adhesive layer 4 is in contact with the outside of the decorative layer. There is. After attaching this adhesive layer to the substrate, the supporting resin layer may or may not be stripped off. The decorative layer 2 may have a smooth surface or may have an uneven pattern forming a hairline pattern or a hologram pattern.

Another example of the first aspect of the present invention is shown in FIG. In this figure, 1, 2, 3, and 4 have the same meaning as in FIG. In this example, a decorative layer 2, for example, a metal vapor deposition layer or a hologram layer is in contact with one surface of the stabilizing resin layer 1, a supporting layer 3 is in contact with the outer surface of this decorative layer, and an adhesive layer 4 is provided outside the stabilizing resin layer. Are in contact with. After the pressure-sensitive adhesive layer is attached to the substrate, the supporting resin layer may or may not be peeled off. The surface of the metal vapor deposition layer may be smooth and may have an uneven pattern forming a hairline pattern or a hologram pattern.

Another example of the first aspect of the present invention is shown in FIG. In this figure, 1, 2, 3 and 4 have the same meaning as in FIG. In this example, the adhesive layer 4 is shown in FIG.
Unlike the above example, it is outside the support layer 3.

An example of the second aspect of the present invention is shown in FIG.
In this figure, 1, 3, and 4 have the same meanings as in FIG. 5 is a decorative surface, for example, a hairline pattern or a hologram pattern. This example is constructed in the order of 4, 5, 1, and 3 layers and planes. Even if the stabilizing resin layer 1 is a transparent resin, it is possible to give a hairline pattern, a hologram pattern, or the like to the human eye by reflecting light due to the unevenness of 5. In this case the support layer is of course transparent.

Another example of the second aspect of the present invention is shown in FIG. In this figure, 1, 3, 4 and 5 have the same meanings as in FIG. In this example, the stabilizing resin layer 1 has hologram patterns 5, 5a on both sides. This example is 4,
Each of the layers 5a, 1, 5, and 3 and the surface are formed in this order.

Another example of the second aspect of the present invention is shown in FIG. In this figure, 1, 3, 4, and 5 have the same meanings as in FIG. In this example, each layer of 4, 1, 5, and 3 and the surface are arranged in this order.

Another example of the second aspect of the present invention is shown in FIG. In this figure, 1, 3, 4, and 5 have the same meanings as in FIG. 6 is a metal thin film layer. This example is 4, 1,
Each of the layers 5 and 3 and the surface are formed in this order.

Another example of the second aspect of the present invention is shown in FIG. In this figure, 1, 3, 4, 5 and 6 have the same meanings as in FIG. This example is constructed in the order of 4, 6, 1, 5, 3 layers and faces.

Another example of the second aspect of the present invention is shown in FIG. In this figure, 1, 3, 4, 5, and 6 have the same meanings as in FIG. In this example, 4, 1, 6, 5, and 3 layers and faces are arranged in this order.

Another example of the second aspect of the present invention is shown in FIG. In this figure, 1, 3, 4, 5, and 6 have the same meanings as in FIG. In this example, layers 4, 5, 1, 6, 3 and layers are arranged in this order. In this example, the metal layer 6 is translucent and the pattern on the surface 5 is visible.

[0055]

【Example】

(Example 1) Silicon modified polyester (Baisilon resin (trademark) UD-460 manufactured by Bayer Synthetic Silicon Co., Ltd.) was formed on the deposition surface of a PET film of 50 μm on which a 700 Å-thick aluminum vapor deposition film was applied by a vacuum deposition method. And isophorone diisocyanate (Z4370 manufactured by Sumitomo Bayer Japan Ltd.) were mixed at a weight ratio of 100: 75,
This was coated and dried at 180 ° C. for 3 minutes (thickness after drying was 2 μm) to form a stabilized resin layer. Next, polyol polyester (manufactured by Sumitomo Bayer Urethane Co., Desmohen (trademark) D-670) and diisocyanate (manufactured by Sumitomo Bayer Urethane Co., Desmodur (trademark) N35)
00) and 100: 50 in a weight ratio, and this is coated and dried at 120 ° C. for 5 minutes (thickness after drying 5
A support layer was formed. Then, the PET film is peeled off from the metal vapor deposition surface, and a thickness of 3
After laminating a 0 μm acrylic pressure-sensitive adhesive, the decorative sheet of the present invention was obtained, and the following tests were conducted. The results are shown in Table 1.

Test A (heat resistance test): A decorative sheet is attached to an aluminum substrate. After that, it is left in a hot air oven at 160 ° C. for 30 minutes to observe the appearance.
As a result, "good" means "no change" and "bad" means "whitening phenomenon".

Test B (elongation test): length of decorative sheet 1
Cut into strips with a width of 0 cm and a width of 1 cm to obtain measurement samples. Such a sample is placed in a tensile tester at a length of 10
% Extend and observe the appearance. As a result expression,
“Good” represents “no change”, and “bad” represents “whitening phenomenon”.

Test C (curved surface test): A decorative sheet is cut into a 5 cm square and used as a measurement sample. The sample is attached to a SUS ball having a diameter of 15 cm, and the appearance is observed. As a result, "good" means "no change" and "bad" means "whitening phenomenon".

Test D (curved surface test + heat resistance test): test C
While the decorative sheet is attached to the ball, it is left in a hot air oven at 160 ° C. for 30 minutes to observe the appearance. As a result, "good" means "no change" and "bad" means "whitening phenomenon".

Example 2 A decorative sheet was prepared in the same manner as in Example 1 except that the PET film surface to be metal-deposited was previously subjected to hairline treatment, and tests A to D were performed. The results are shown in Table 1.

Example 3 A decorative sheet was prepared in the same manner as in Example 1 except that the PET film surface to be metal-deposited was subjected to a hologram treatment in advance, and tests A to D were performed. The results are shown in Table 1.

Example 4 Polyol polyester (manufactured by Sumitomo Bayer Urethane Co., Desmohen (trademark) D-670) and diisocyanate (manufactured by Sumitomo Bayer Urethane Co., Desmodur (trademark) N3500) were weighed on a 50 μm PET film. The mixture was mixed at a ratio of 100: 50, and this was coated and dried at 120 ° C. for 5 minutes (thickness after drying 50 μm) to form a support layer. Next, a silicone-modified polyester (Baylon Synthetic Silicon Co., Ltd., Baysilon resin (trademark) UD-460) and isophorone diisocyanate (Sumitomo Bayer Japan Co., Z437).
0) and 100: 75 in a weight ratio, which is coated and dried at 180 ° C. for 3 minutes (thickness of 5 μm after drying).
m) A stabilizing resin layer was formed. Then, after a vapor deposition film of aluminum having a thickness of 500Å was applied by a vacuum vapor deposition method, the PET film was peeled from the support layer. Furthermore, 3
After laminating a 0 μm thick acrylic pressure-sensitive adhesive on the metal vapor-deposited surface, the decorative sheet of the present invention was prepared, and the test A of Example 1 was performed.
~ D. The results are shown in Table 1.

(Embodiment 5) A hologram pattern was pressed on the metal vapor-deposited surface and subjected to a hologram treatment.
Using the decorative sheet prepared by the method of Example 4, tests A to D of Example 1 were performed. The results are shown in Table 1.

Example 6 A decorative sheet was prepared in the same manner as in Example 5 except that the support layer was screen-printed with Scotchcal 3900 series, silk screen ink manufactured by 3M Co., USA. Tests A to D were conducted. The results are shown in Table 1.

(Example 7) A thickness of 50 was obtained by a vacuum vapor deposition method.
50μm PET coated with 0Å aluminum vapor deposition film
Silicon modified polyester (Basilon resin (trademark) UD manufactured by Bayer Synthetic Silicon Co., Ltd.)
-460) and isophorone diisocyanate (Z4370 manufactured by Sumitomo Bayer Japan Ltd.) in a weight ratio of 100: 7.
The resulting mixture was mixed at 5, coated multiple times, and dried at 180 ° C. for 3 minutes (thickness after drying 100 μm) to form a stabilized resin layer. Then, the PET film was peeled off from the metal vapor-deposited surface, and an acrylic pressure-sensitive adhesive having a thickness of 30 μm was laminated on the metal vapor-deposited surface to obtain a decorative sheet of the present invention, and tests A to D of Example 1 were performed. went. The results are shown in Table 1.

(Comparative Example 1) A decorative sheet was prepared in the same manner as in Example 1 except that the stabilizing resin layer was not used, and tests A to D of Example 1 were conducted. The results are shown in Table 2.

Comparative Example 2 As a stabilizing resin layer, a urethane resin having no siloxane bond in the molecule (Elitel (trademark) UE-3600, manufactured by Unitika Ltd. and Z437).
0 was mixed in a weight ratio of 100: 3), and a decorative sheet was prepared in the same manner as in Example 1 and tests A to D of Example 1 were performed. The results are shown in Table 2.

In Tables 1 and 2, for each layer used in each example, its thickness and material number or material itself (A
1) is shown.

[Table 1] Implementation Stabilization Decoration Decoration Support Adhesive Test Test Test Test Example No. Resin layer Layer surface layer Layer ABCD 1 2 μm 700 Å 50 μm 30 μm Good Good Good Good UD-460 Al D-670 Acrylic / Z4370 / N3500 2 2 μm 700 Å Hair 50 μm Same as above Good Good Good Good UD-460 Al in D-670 / Z4370 / N3500 3 2 μm 700 Å Holog 50 μm Same as good Good UD-560 Al Ram D-670 / Z4370 / N3500 45 5 μm 500 50 μm Same as above Good Good Good Good UD-460 Al D-670 / Z4370 / N3500 5 5 μm 500Å Holog 50 μm Same as above Good Good Good UD-460 Al Ram D-670 / Z4370 / N3500 6 5 μm 500Å Holog 50 μm Same as good UD Good -460 Al Ram D-670 / Z4370 / N3500 7 100 μm 500 Å Same as above Good Good Good Good UD-460 Al / Z4370

[Table 2] Comparative Stabilization Decorative Support Adhesive Test Test Test Test Example No. Layer Layer Layer Layer ABCD 1 None 500Å 50 μm Acrylic Bad Good Bad Al D-670 / N3500 2 5 μm 500Å 50 μm Same Bad Bad Good Bad ELITEL-UE- Al D-670 3300 / Z4370 / N3500

[0071]

EFFECTS OF THE INVENTION According to the present invention, (a) good followability to a three-dimensional curved surface, (b) excellent heat resistance, (c) excellent adhesion with a decorative layer, and (d) ) Beautiful hairline processing and hologram processing are possible if desired,
It is possible to provide a decorative sheet that is (e) inexpensive and (f) easily manufactured.

Further, according to the present invention, it is possible to prevent bleeding of the plasticizer or the like from the decorative layer and maintain an excellent adhesive force, or the stabilizing resin layer has solvent resistance and heat resistance. Since the adhesiveness is good, there is an advantage in the process such that the pressure-sensitive adhesive layer can be directly provided on the stabilizing resin layer.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an example of the present invention.

FIG. 2 is a sectional view of another example of the present invention.

FIG. 3 is a cross-sectional view of another example of the present invention.

FIG. 4 is a sectional view of another example of the present invention.

FIG. 5 is a cross-sectional view of another example of the present invention.

FIG. 6 is a sectional view of another example of the present invention.

FIG. 7 is a cross-sectional view of another example of the present invention.

FIG. 8 is a cross-sectional view of another example of the present invention.

FIG. 9 is a cross-sectional view of another example of the present invention.

FIG. 10 is a sectional view of another example of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Stabilizing resin layer 2 ... Decorative layer 3 ... Supporting resin layer 4 ... Adhesive layer 5, 5a ... Decorative surface 6 ... Metal thin film layer

Claims (7)

[Claims] 1. A decorative sheet comprising a stabilizing resin layer and a decorative layer adjacent thereto, wherein the stabilizing resin layer is a polyurethane resin having a siloxane bond in the molecule. 2. The decorative sheet according to claim 1, wherein the decorative layer is a metal thin film layer, a hologram processing layer, or a hairline processing layer. 3. The decorative sheet according to claim 1, wherein the decorative layer is a combination of a metal thin film layer and a hologram processing layer or a hairline processing layer. 4. A decorative sheet including a stabilizing resin layer and a hologram-treated surface or a hairline-treated surface, wherein the stabilizing resin layer uses a polyurethane resin having a siloxane bond in the molecule. 5. The decorative sheet according to claim 4, wherein the decorative sheet includes a metal thin film layer. 6. The decorative sheet according to claim 1, wherein the decorative sheet includes a support layer. 7. The decorative sheet according to claim 1, wherein the decorative sheet includes an adhesive layer.