JP2017154362A - Decorative sheet, decorative material, and method for producing decorative sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a decorative sheet with gloss matte printing with high design quality using vinyl chloride.SOLUTION: A lower base 11 including vinyl chloride, and a pattern layer 13 and a transparent upper base layer 15 on one face side of the lower base 11 are included in the order mentioned above. A urethane resin is applied to a side closer to the upper base layer 15 to dispose a conduit layer 19. In addition, a surface protective layer 17 formed by applying a urethane resin between the pattern layer 13 and the conduit layer 19 is included, thereby allowing the luster of the conduit layer 19 to be less than that of the surface protective layer 17.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a decorative sheet, a decorative material provided with the decorative sheet, and a method of manufacturing the decorative sheet.

  Currently, there are two types of clear films for protecting a base sheet and a printed layer that are bonded to a base of a decorative sheet, and those using a polyolefin resin and those using vinyl chloride. Such a base sheet is also referred to as “lower base”, and the clear film is also referred to as “upper base”. Polyolefin-based resins have favorable properties for the global environment, such as no generation of hydrogen gas or dioxin during combustion. On the other hand, vinyl chloride is inexpensive and has the characteristics of excellent flame retardancy and self-digestibility. For this reason, it is desirable to properly use a decorative sheet using polyolefin resin and a decorative sheet using vinyl chloride.

By the way, the decorative sheet has a technique called “gross mat printing” in which a conduit printing layer is formed and the unevenness is visually formed without forming physical unevenness on the surface. As a known technique of gloss mat printing, for example, there is Patent Document 1. The decorative sheet described in Patent Document 1 is a first ionizing radiation curable type in which a thermoplastic sheet such as vinyl chloride or polyolefin which is a base is embossed, and the processed thermoplastic sheet has a different gloss after coating and curing. It describes that a coating liquid and a second ionizing radiation curable coating liquid are applied.
In the cited document 2, a matte layer and a gloss improvement layer are provided on the lower base, and the molecular weight and composition of the resin contained in the gloss improvement layer are defined, so that the surface hardness, scratch resistance and design effect of the decorative sheet are provided. It is described to increase.

JP 2000-326446 A JP 2014-188842 A

However, the embossing includes a step of heating the thermoplastic sheet. It can be said that vinyl chloride has lower heat resistance than olefin resin and is not suitable for embossing. In addition, defining the molecular weight of the resin layer in order to express unevenness with resin layers with different glosses may limit the range of gloss of the resin layer and not sufficiently improve the design of gloss mat printing. There is sex.
The present invention has been made in view of the above points, and provides a decorative sheet for gloss mat printing having high design properties using vinyl chloride, a decorative material provided with the decorative sheet, and a method for manufacturing the decorative sheet. The purpose is to do.

In order to solve the above problems, a decorative sheet of one embodiment of the present invention includes a base sheet containing vinyl chloride, and a pattern layer and a transparent film layer formed in this order on one surface side of the base sheet. And a conduit layer having a lower gloss than the transparent film layer, which is formed by applying a first resin on the transparent film layer side.
Moreover, the decorative sheet of one aspect of the present invention has a surface protective layer formed by applying a second resin between the pattern layer and the conduit layer in the above aspect, The gloss is lower than that of the surface protective layer.

In the decorative sheet of one embodiment of the present invention, in the above embodiment, the surface protective layer is formed on the entire surface of the picture layer, and the conduit layer is formed on a part of the surface of the surface protective layer.
In the decorative sheet of one embodiment of the present invention, in the above embodiment, the first resin and the second resin contain a urethane resin.
In the decorative sheet of one embodiment of the present invention, in the above embodiment, the first resin includes an acrylic resin as an ink and an isocyanate resin as a curing agent, and the second resin is an acrylic resin. A modified resin and an isocyanate resin as a curing agent are included.

A decorative material according to one aspect of the present invention includes a decorative sheet according to any one of the above aspects, an adhesive layer provided on a surface opposite to the pattern layer of the base sheet of the decorative sheet, And a base material bonded to the base material sheet by an adhesive layer.
The method for producing a decorative sheet according to one aspect of the present invention includes a step of forming a picture layer on one side of a base sheet made of vinyl chloride, and a transparent film layer containing vinyl chloride on the picture layer. And a step of applying a first resin on the transparent film layer side to form a conduit layer having a lower gloss than the transparent film layer.

  According to such an invention, it is possible to provide a glossy matte print decorative sheet having high design properties using vinyl chloride, a cosmetic material provided with the decorative sheet, and a method for producing the decorative sheet.

It is sectional drawing for demonstrating the decorative material and decorative sheet of one Embodiment of this invention. It is process drawing for demonstrating the manufacturing method of the decorative sheet of one Embodiment of this invention. It is sectional drawing for demonstrating the decorative sheet of 2nd Example of this invention. It is sectional drawing for demonstrating the decorative sheet of the 1st comparative example of this invention. It is sectional drawing for demonstrating the decorative sheet of the 2nd comparative example of this invention.

Hereinafter, an embodiment of the present invention will be described.
In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic, and the relationship between the thickness and the planar dimensions, the ratio of the thickness of each layer, and the like are different from the actual ones. Therefore, specific thicknesses and dimensions should be determined in consideration of the following description. Moreover, it is a matter of course that portions having different dimensional relationships and ratios are included between the drawings.
Further, the embodiments described below exemplify configurations and methods for embodying the technical idea of the present invention, and the technical idea of the present invention is the material, shape, structure, and arrangement of component parts. Etc. are not specified below. The technical idea of the present invention can be variously modified within the technical scope defined by the claims described in the claims.

(Cosmetic materials)
<Base material layer>
FIG. 1 is a cross-sectional view for explaining a decorative material and a decorative sheet according to an embodiment of the present invention. In the present embodiment, the decorative material is configured as a plate-shaped decorative board. However, the decorative material of the present embodiment is not limited to a plate-shaped decorative board, and may be one in which a decorative sheet is attached to a curved surface.

  The decorative material 1 shown in FIG. 1 has a base material layer 21, an adhesive layer 22 formed on the base material layer 21, and a decorative sheet 10. As the base material layer 21, south plywood plywood, softwood plywood, particle board, medium density fiber board (MDF), and normal plywood stipulated in Japanese Agricultural Standard can be used. The thickness is preferably about 3 μm or more and 25 mm or less.

<Adhesive layer>
The adhesive layer 22 is used for bonding the base material layer 21 and the back surface of the decorative sheet 10. In this embodiment, an aqueous vinyl letane resin is used for the adhesive. Note that the present embodiment is not limited to the use of an aqueous vinylretane resin for the adhesive layer 22. As long as the adhesive layer of this embodiment can adhere | attach the base of the vinyl chloride used as the back surface of the decorative sheet 10, and the base material layer 21, what kind of thing may be sufficient as it.

(Decorative sheet)
Next, the decorative sheet 10 will be described. The decorative sheet 10 has a base sheet containing vinyl chloride. In the present embodiment, hereinafter, the base sheet is referred to as a lower base layer 11. Further, the decorative sheet 10 has a pattern layer 13 and a transparent film layer formed in this order on one surface side of the lower base layer 11. In the present embodiment, the transparent film layer is hereinafter referred to as the upper base layer 15.

The decorative sheet 10 is formed by applying a resin on the upper base layer 15 side, and has a mat conduit layer 19 having a lower gloss than the upper base layer 15 and the surface protective layer 17.
Furthermore, the decorative sheet 10 of the present embodiment has a surface protective layer 17 formed by applying a resin between the pattern layer 13 and the mat conduit layer 19. The gloss of the mat conduit layer 19 is lower than that of the surface protective layer 17.

  The decorative sheet 10 of the present embodiment has a surface subjected to a gloss sheet printing process. Gross sheet printing is a technique that gives an observer an impression that the surface is uneven by forming patterns with different gloss on the surface of the decorative sheet by printing. In the present embodiment, the mat conduit layer 19 is formed on the surface protective layer 17 and the gloss of the mat conduit layer 19 is lower than that of the surface protective layer 17.

In this embodiment, the surface protective layer 17 is formed on the entire surface of the pattern layer 13, and the mat conduit layer 19 is formed on a part of the surface of the surface protective layer 17. For this reason, on the surface of the decorative sheet 10, a part of the surface protective layer 17 and the mat conduit layer 19 are visible at the same time.
In the decorative sheet 10 of the present embodiment, the surface protective layer 17 having a relatively high gloss appears to protrude, and the mat conduit layer 19 having a relatively low gloss appears to be depressed. For this reason, the decorative sheet 10 produces a visual effect such that concave portions of the pattern of the mat conduit layer 19 and convex portions of the surface protective layer 17 visible from the mat conduit layer 19 are formed on the surface.

  In addition, this embodiment is not limited to the structure which provides the pattern of the layer with relatively low gloss on the layer with relatively high gloss. For example, a pattern of a layer having a relatively high gloss may be provided on a layer having a relatively low gloss. Further, the pattern of the surface protective layer 17 and the pattern of the mat conduit layer 19 may be respectively formed on the upper base layer 15. Such a configuration is visually recognized by an observer such that a layer having a relatively high gloss protrudes and a layer having a relatively low gloss is depressed.

Hereinafter, each layer of the decorative sheet 10 shown in FIG. 1 will be specifically described.
<Lower base layer>
The lower base layer 11 is a sheet made of polyvinyl chloride. Polyvinyl chloride is a thermoplastic resin that is superior to, for example, polyolefins in terms of flame retardancy, self-extinguishing properties, and cost. The lower base layer 11 may be a combination of polyvinyl chloride and other resins as appropriate.

  Polyvinyl chloride is transparent, but can be colored by adding a pigment or dye when used as the lower layer 11. As the colorant, for example, inorganic pigments such as titanium dioxide, carbon black and iron oxide, organic pigments such as phthalocyanine blue, and various dyes can be used. These can be selected from one or more known or commercially available. Further, the addition amount of the colorant may be appropriately set according to the desired color tone.

Furthermore, various additives such as a filler, a matting agent, a foaming agent, a flame retardant, a lubricant, an antistatic agent, an antioxidant, an ultraviolet absorber, and a light stabilizer are added to the lower layer 11 as necessary. May be added.
The thickness of the lower base layer 11 can be set as appropriate depending on the use of the final product, the method of use, and the like.
If necessary, the lower base layer 11 may be subjected to corona discharge treatment on the surface in order to enhance the adhesion of the ink forming the pattern layer 13. What is necessary is just to implement the method and conditions of a corona discharge process according to a well-known method. Moreover, you may give a corona discharge process to the back surface of a base material sheet, and may form the back surface primer layer mentioned later as needed.

<Pattern layer>
The pattern layer 13 is a layer that imparts a desired pattern (design) to the decorative sheet. Examples of the pattern include a wood grain pattern, a leather pattern, a stone pattern, a grain pattern, a tiled pattern, a brickwork pattern, a cloth pattern, a geometric figure, a character, a symbol, and an abstract pattern.
The pattern layer 13 is formed on the lower layer 11 by, for example, a printing method using an ink obtained by dissolving (or dispersing) a known colorant together with a binder resin in a solvent (or dispersion medium).

  Examples of colorants include inorganic pigments such as carbon black, titanium white, zinc white, dial, bitumen, cadmium red; azo pigments, lake pigments, anthraquinone pigments, quinacridone pigments, phthalocyanine pigments, isoindolinone pigments, dioxazine pigments. Organic pigments such as aluminum powder, metal powder pigments such as bronze powder, pearlescent pigments such as titanium oxide-coated mica and bismuth oxide chloride; fluorescent pigments; These colorants can be used alone or in admixture of two or more. These colorants may be used together with fillers such as silica, extender pigments such as organic beads, neutralizing agents, surfactants and the like.

As binder resin, in addition to acrylic resin, vinyl chloride, vinyl acetate copolymer resin, polyester urethane resin treated with hydrophilicity, polyester, polyacrylate, polyvinyl acetate, polybutadiene, polyvinyl chloride, chlorinated polypropylene, Polyethylene, polystyrene, polystyrene-acrylate copolymers, rosin derivatives, alcohol adducts of styrene-maleic anhydride copolymers, cellulose resins, and the like can be used in combination. More specifically, for example, polyacrylamide resins, poly (meth) acrylic resins, polyethylene oxide resins, poly N-vinyl pyrrolidone resins, water-soluble polyester resins, water-soluble polyamide resins, water-soluble amino acids. Also usable are water-based resins, water-soluble phenolic resins, other water-soluble synthetic resins; water-soluble natural polymers such as polynucleotides, polypeptides, polysaccharides, and the like. In addition, for example, natural rubber, synthetic rubber, polyvinyl acetate resin, polyvinyl chloride resin, polyurethane-polyacrylic resin modified, a mixture of natural rubber, and other resins can be used. . The binder resin can be used alone or in combination of two or more.
The thickness of the pattern layer 13 is not particularly limited and can be set as appropriate according to product characteristics. The layer thickness at the time of ink application is about 1 μm to 15 μm, and the layer thickness after drying is 0.1 μm to 10 μm. The degree is preferred.

<Upper layer>
The upper layer 15 is a transparent vinyl chloride resin sheet. Although there is no restriction | limiting in particular in the thickness of the upper base layer 15, The range of about 50 micrometers or more and 300 micrometers or less is preferable.
<Surface protective layer>
The surface protective layer 17 is formed of a urethane resin. This urethane resin contains a gloss resin of acrylic modified resin, a mat resin, and a curing agent. In this embodiment, an isocyanate resin as an ultraviolet curing agent is added to the urethane resin. In this embodiment, such a urethane resin is a two-component urethane resin. The composition and amount of the gloss resin and the mat resin are appropriately determined according to the gloss required for the surface protective layer 17.

In the present embodiment, the surface protective layer 17 is formed by a printing method using an ultraviolet curable resin. For this reason, in the present embodiment, no heat is applied to the lower base layer 11 and the upper base layer 15 in forming the surface protective layer 17, and the lower base layer 11 and the upper base layer 15 made of vinyl chloride are not damaged.
The thickness of the surface protective layer 17 is not particularly limited, but generally a range of about 0 μm to 6 μm is preferable.

<Matte conduit layer>
The mat conduit layer 19 is made of urethane resin. This urethane resin contains an acrylic resin as a mat ink and an isocyanate resin as a curing agent. The composition and amount of the mat ink are appropriately determined according to the gloss required for the mat conduit layer 19.

  In this embodiment, like the surface protective layer 17, the mat conduit layer 19 is formed by a printing method using an ultraviolet curable resin. For this reason, in the present embodiment, no heat is applied to the lower base layer 11 and the upper base layer 15 in forming the surface protective layer 17, and the lower base layer 11 and the upper base layer 15 made of vinyl chloride are not damaged.

(Manufacturing method of decorative sheet)
Next, the manufacturing method of the decorative sheet 10 of this embodiment is demonstrated.
FIG. 2A to FIG. 2D are process diagrams for explaining the method for manufacturing the decorative sheet 10 of the present embodiment. In the manufacturing method of the decorative sheet 10 of the present embodiment, first, as shown in FIG. 2A, the pattern layer 13 is formed on the lower base layer 11 by printing. Printing for forming the pattern layer 13 can be realized by, for example, a gravure printing method, an offset printing method, a screen printing method, a flexographic printing method, a letterpress printing method, an ink jet printing method, a transfer printing method, or the like. When the pattern is a so-called solid printing in which the pattern of the layer is one color, the pattern layer 13 can be realized by a gravure coating method or the like.

Next, as shown in FIG. 2B, the upper base layer 15 is formed on the pattern layer 13. Since the upper base layer 15 is made of vinyl chloride, it can be bonded to the pattern layer 13 by heating without using an adhesive. As a matter of course, the heating performed for bonding the upper base layer 15 to the pattern layer 13 does not apply a temperature at which the upper base layer 15 is damaged.
Next, as shown in FIG. 2C, the surface protective layer 17 is formed on the upper base layer 15. The surface protective layer 17 is formed by applying the two-component urethane resin containing the above-described gloss resin, mat resin, and curing agent, and curing the resin by irradiating with ultraviolet rays. There is no pattern on the upper base layer, and it is transparent so that the design of the pattern layer 13 can be visually recognized. For this reason, the urethane resin can be applied by solid printing.

  Next, as shown in FIG. 2D, the mat conduit layer 19 is printed on the surface of the surface protective layer 17. In the printing of the mat conduit layer 19, a pattern that covers a part of the surface protective layer 17 is formed. The pattern forming printing is realized by, for example, gravure printing method, offset printing method, screen printing method, flexographic printing method, letterpress printing method, ink jet printing method, transfer printing method and the like used for forming the pattern layer 13. Can do.

  As described above, the mat conduit layer 19 has a lower gloss than the upper base layer 15. Further, the mat conduit layer 19 has a lower gloss than the surface protective layer 17 which is a direct lower layer. For this reason, the pattern printed as the mat conduit layer 19 appears to be recessed from the surface, and the surface protective layer 17 appears to protrude relatively. Due to this visual effect. The decorative sheet of this embodiment appears to have irregularities formed on the surface. In this embodiment, after providing the base layer 11 made of vinyl chloride, the surface protective layer 17 and the mat conduit layer 19 are formed by printing. For this reason, this embodiment can form a glossy matte printed decorative sheet without damaging the lower base layer 11 and the upper base layer 15 made of vinyl chloride by heat.

The inventor of the present invention made the above-described decorative sheet and decorative material, and conducted an experiment to verify the effect. Hereinafter, the first example and the second example of the decorative sheet and the decorative material of the present embodiment will be described.
<First embodiment>
The decorative sheet of the first embodiment has the same configuration as the decorative sheet 10 shown in FIG. For this reason, illustration of a decorative sheet is omitted in the first embodiment. The conditions for producing each layer of the decorative sheet of the first example are as follows.

Substrate layer: plywood, thickness 5mm
Adhesive layer: aqueous vinylretane resin, coating amount 6 g / m ² (after drying)
Bottom layer: colored vinyl chloride resin, thickness 80 μm, composition plastic 17PHR
Pattern layer: acrylic resin, vinyl chloride resin, organic pigment, total coating amount 3 g / m ² (after drying)
Upper base layer: vinyl chloride resin, thickness 80 μm, composition plastic 20 PHR
Surface protective layer: two-component urethane resin, coating amount 2.24 g / m ² (after drying)
Matt conduit layer: two-component urethane resin, coating amount 1.46 g / m ² (after drying)

  The composition of the two-component urethane resin of the transparent resin layer is 20 parts by weight of a gloss resin, 80 parts by weight of a mat resin, and 10 parts by weight of a curing agent. Further, the gloss resin contains 24.5% (solid content) of an isocyanate-reactive acrylic modified resin, 69% of an organic solvent, and 6.5% of an organic additive such as an ultraviolet absorption type, and its specific gravity is 0.95. The mat resin contains 23.5% (solid content) of an isocyanate-reactive acrylic-modified resin, 65% of an organic solvent, 4% of an organic additive such as an ultraviolet absorption type, and 7.5% of silica, and has a specific gravity of 1.0. is there. The curing agent is an isocyanate resin having a solid content of 75% and a specific gravity of 1.10.

  The composition of the two-component urethane resin of the mat conduit layer is 100 parts by weight of mat ink and 16 parts by weight of the curing agent. Further, the mat ink is an acrylic mat ink having a solid content of 36% and a specific gravity of 1.01. The composition of the acrylic mat ink is 25% acrylic resin, 4% organic additive, and 7% silica. The composition of the curing agent is an isocyanate resin, a solid content of 75%, and a specific gravity of 1.10.

<Second embodiment>
FIG. 3 is a cross-sectional view for explaining the decorative material 3 and the decorative sheet 30 of the second embodiment of the present invention. The decorative sheet 30 of the second embodiment has a configuration obtained by removing the surface protective layer 17 from the decorative sheet 10 of the embodiment of the present invention. For this reason, description of each layer is abbreviate | omitted in description of the decorative sheet 30 shown in FIG.

In the decorative sheet 30 shown in FIG. 3, the vinyl chloride upper base layer 15 is heated and pressure-bonded to the pattern layer 13, and the mat conduit layer 19 is formed by printing. In the second embodiment, a high temperature that damages the lower base layer 11 is not applied to the decorative sheet 30. Further, the mat conduit layer 19 of the second embodiment has a lower gloss than the upper base layer 15 and appears on the upper base layer 15 to be depressed by the observer.
In addition, the inventors of the present invention produced a decorative sheet outside the scope of the present invention as a comparative example in order to verify the effects obtained by the decorative sheets of the first and second examples. The decorative sheet of the comparative example has a basic function required for a decorative sheet at present and is put into practical use. Hereinafter, the decorative sheets of the first comparative example and the second comparative example will be described.

<First comparative example>
FIG. 4 is a diagram for explaining the decorative material 4 and the decorative sheet 40 of the first comparative example. The decorative sheet 40 of the first comparative example is configured by removing the mat conduit layer 19 from the decorative sheet 30 of the second embodiment. For this reason, in description of the decorative sheet 40 shown in FIG. 4, description of each layer shall be omitted. The decorative sheet 40 has an upper base layer 15 formed on the surface thereof, and a layer having a gloss different from that of the upper base layer 15 is not provided on the upper base layer 15. Such a configuration cannot provide a decorative sheet in which no depression is seen on the upper base layer 15 and the surface appears uneven.

<Second Comparative Example>
FIG. 5 is a diagram for explaining the decorative material 5 and the decorative sheet 50 of the second comparative example. The decorative sheet 50 of the second comparative example is obtained by providing a wiping layer 53 between the upper base layer 15 and the surface protective layer 17 except for the mat conduit layer 19 of the decorative sheet 10 of the embodiment. The wiping layer 51 is provided with a wiping layer 53 obtained by embossing a vinyl chloride sheet on the upper base layer 15, and after applying the ink 51 on the embossed front surface, the ink 51 is embedded in the embossed recess. Formed with. According to such processing, the gloss of the ink 51 portion becomes lower than that of the upper layer 15 on the lower surface.

<Effect>
Table 1 is a diagram for explaining visual effects obtained by the first example, the second example, the first comparative example, and the second comparative example. As shown in Table 1, the inventors of the present invention generally need the appearance observation of the decorative sheet and the decorative sheet for the first example, the second example, the first comparative example, and the second comparative example. And other basic performances confirmed.

(A) Chemical resistance As a basic performance required for a decorative sheet, the inventors of the present invention investigated chemical resistance and stain resistance. The chemical resistance experiment was carried out by dropping a target chemical solution onto the cut decorative sheet surface and covering with a chronograph for 6 hours. And after 6 hours passed, the inventors uncovered the decorative sheet, washed it with water, wiped it off, and observed the surface of the decorative sheet. Alternatively, the decorative sheet with the coating removed was wiped with a dry member and washed with water.
In this example, the observation result of the surface was performed by “◯”, “Δ”, and “×”. “◯” indicates that it was determined that there was no change in the appearance of the decorative sheet. “Δ” indicates that it was determined that a change in gloss on the surface of the decorative sheet was observed. “X” indicates that it was determined that a change other than gloss was found on the surface of the decorative sheet.

The chemicals used in the chemical resistance experiment are 10% hydrochloric acid aqueous solution (10% hydrochloric acid in the figure), n-hexane, toluene, methyl ethyl ketone (MEK), 10% aqueous ammonia solution (10% ammonia water in the figure), 10% aqueous sodium hydroxide solution (10% sodium hydroxide in the figure) and acetone.
As a result of the chemical resistance experiment, in each of 10% hydrochloric acid, n-hexane, 10% aqueous ammonia and 10% caustic soda, all of the first example, the second example, the first comparative example and the second comparative example Has a rating of “〇”. Such a result represents that the decorative sheets of the first example and the second example have chemical resistance equivalent to that of the first comparative example and the second comparative example. In all the experiments where the evaluation of “◯” was obtained, the surface of the decorative sheet was wiped after being washed, but in all other experiments, the surface of the decorative sheet was wiped dry and washed with water.

(B) Contamination resistance In the same manner as chemical resistance, the contamination resistance experiment was performed by dropping a target sample on the cut decorative sheet surface and covering it with a time-lapse dish for 6 hours. Then, after 6 hours had passed, the inventors uncovered the decorative sheet and wiped it with water or detergent or alcohol, and observed the surface of the decorative sheet. Alternatively, the decorative sheet with the coating removed was wiped with a dry member and washed with water.
In this example, the observation result of the surface was performed by “◎”, “◯”, “Δ”. “◎” indicates that the sample adhering to the decorative sheet was wiped off with a neutral detergent. “◯” indicates that the sample adhered to the decorative sheet was wiped off with alcohol. “Δ” indicates that some stains remain even if the sample adhering to the decorative sheet is wiped off.

  Samples used in the contamination resistance experiment include black tea (Lipton Yellow Label tea bag extracted with boiling water for 45 seconds and then cooled to room temperature), vinegar (Mitsukan grain vinegar stock solution), 10% citric acid aqueous solution (10% citric acid), shoe ink (manufactured by Columbus, Night Liquid (black)), aqueous marker pen (manufactured by Pentel Co., Ltd., product number S520-AD, black), hair dye (Hoyu Corporation, Bigen, cream treatment) 3G).

  As a result of the stain resistance experiment, in any of the first example, the second example, the first comparative example, and the second comparative example, it is not possible to wipe off unless the shoe ink and the hair dye use alcohol. It was. Further, other samples could be wiped with a neutral detergent in any of the first example, the second example, the first comparative example, and the second comparative example. From these results, it can be said that the decorative sheets of the first example and the second example have the same function as the decorative sheet as in the first comparative example and the second comparative example.

(C) Appearance Observation Next, the results of appearance observation of the first example, the second example, the first comparative example, and the second comparative example will be described. The appearance observation is performed by an observer's visual observation, and determines whether or not the design of the decorative sheet feels uneven on the surface. In appearance observation, when the observer feels unevenness on the surface of the decorative sheet (has a glossy matte feeling), “◯”, when it does not appear to be uneven (no glossy matte feeling) Is evaluated as “×”.
As shown in Table 1, the decorative sheets of the first example and the second example have been evaluated as “◯” because they have a glossy matte design. However, Comparative Example 1 and Comparative Example 2 were evaluated as “x” because no glossy matte feeling was felt on the surface.

(D) Comprehensive evaluation From the above, it was found that the decorative sheets of the first and second examples satisfy the necessary conditions in both the basic function necessary for the decorative sheet and the gloss matte feeling. . On the other hand, the decorative sheet of the second comparative example was not able to obtain a glossy matte feeling even though a layer having different glossiness was provided on the surface of the upper base layer 15 by wiping.

  The decorative sheet of the present invention described above can be used as a building material by sticking to a wallpaper, an outer wall, or a flooring material. Moreover, the decorative material of the present invention can be used for building materials such as wallpaper and outer walls, and furniture.

1, 3, 4, 5 Cosmetic material 11 Lower base layer 13 Picture layer 15 Upper base layer 17 Surface protective layer 19 Mat conduit layer 21 Base material layer 22 Adhesive layer

Claims (7)

A base sheet containing vinyl chloride, and a picture layer and a transparent film layer are formed in this order on one surface side of the base sheet,
A decorative sheet comprising a conduit layer formed by applying a first resin on the transparent film layer side and having a lower gloss than the transparent film layer.   It has a surface protective layer formed by applying a second resin between the picture layer and the conduit layer, and the gloss of the conduit layer is lower than that of the surface protective layer. Item 10. A decorative sheet according to Item 1.   The decorative sheet according to claim 2, wherein the surface protective layer is formed on the entire surface of the pattern layer, and the conduit layer is formed on a part of the surface of the surface protective layer.   The decorative sheet according to claim 3, wherein the first resin and the second resin contain a urethane resin.   The first resin includes an acrylic resin as an ink and an isocyanate resin as a curing agent, and the second resin includes an acrylic-modified resin and an isocyanate resin as a curing agent. The decorative sheet according to claim 4, wherein The decorative sheet according to any one of claims 1 to 5,
An adhesive layer provided on a surface opposite to the pattern layer of the base sheet of the decorative sheet;
A substrate bonded to the substrate sheet by the adhesive layer;
A cosmetic material comprising: Forming a pattern layer on one side of the base sheet made of vinyl chloride;
Forming a transparent film layer containing vinyl chloride on the pattern layer;
Applying a first resin on the transparent film layer side to form a conduit layer having a lower gloss than the transparent film layer, and a method for producing a decorative sheet.

Images