JP4600904B2 - Cosmetic material - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a decorative material used for interior or exterior building materials, joinery, construction members, furniture, and the like.
[0002]
[Prior art]
Conventionally, a decorative material having a structure in which a decorative sheet is laminated on the surface of an adherent substrate has been widely used as this type of decorative material. Among these, cosmetic materials that have a linear groove-like appearance on the surface are preferred for use on siding panels, coffin doors, waist walls, etc. This type of cosmetic material is manufactured by the following method. Yes.
[0003]
The first method is to cut a groove reaching the base material portion directly on the surface of the base material on which the decorative sheet is adhered (for example, see Japanese Patent Laid-Open Nos. 54-2307 and 2000-71696). And the 2nd method sticks the decorative sheet which printed the groove-shaped pattern on the flat-planar adherend base material. Further, the third method is the same as the second method, in which the groove-shaped pattern portion is further made to be less glossy (matte) than the surroundings, and visually appears as if it is recessed from the surroundings (for example, real fairness 5- No. 29294).
[0004]
[Problems to be solved by the invention]
However, in the first method described in the prior art, there is a problem that the decorative sheet is peeled off from the substrate to be coated at the time of cutting, or the decorative sheet of the cutting part is touched. Since the adherent substrate is exposed, it is necessary to select a material having a good appearance as the adherent substrate, and there are problems that the choice of the substrate is reduced and the price is increased. In addition, the decorative material obtained by the second method has a flat groove and is inferior in reproducing the appearance of the groove. In the third method, the planar appearance is improved as compared with the cosmetic material obtained by the second method, but the reproduction of the appearance of the concave portion is still insufficient, and it is understood that the surface is flat when touched with the hand. Can't be deceived.
[0005]
Therefore, after cutting the groove-shaped recesses on the surface of the substrate to be coated in advance, it was tried to attach the decorative sheet. The sharpness of the part was also blunted, and a sufficient appearance of the groove-shaped recess was not obtained. In addition, if the decorative sheet and the substrate to be attached are misaligned when the decorative sheet is attached, the unevenness of the groove and the pattern do not match, resulting in a defective product. The production yield of materials is poor.
[0006]
The present invention has been made in view of such problems, and an object of the present invention is to provide a cosmetic material having a groove-shaped recess having a good appearance design and a good production yield. .
[0007]
[Means for Solving the Problems]
  In order to achieve the above object, the decorative material of the present invention is formed by sticking a decorative sheet having a linear groove pattern on the surface of an adherend substrate having a linear groove recess on the surface. It is a decorative material, and the groove-like pattern of the decorative sheet is a straight belt shape corresponding to the groove-like recess of the adherend substrate,colorBoth sides of the relatively high concentration, and sandwiched between both sides than the sidesColor densityWith relatively low concentration in the middleBy,The groove pattern is darker and darker on both sides than the center,And the groove-like pattern of the decorative sheet is synchronized with the groove-like recess of the substrate to be adhered, and the outermost end of each side of the groove-like pattern is more than the outermost end of each side of the groove-like recess. It is characterized by being located inside.
[0008]
Further, in the decorative material having the above structure, the width W of the groove-like pattern_PAnd the width W of the bottom of the groove-shaped recess_TbAnd the width W of each side surface of the groove-shaped recess_TS1, W_TS2Between
W_Tb<W_P<(W_Tb+ W_TS1+ W_TS2)
It is preferable that the above relationship is established, and that the outermost end portion of each side portion of the groove-like pattern is located on the inner side of the outermost end portion of each side surface portion of the groove-like recess portion.
[0009]
Further, in the decorative material of the above configuration, each side portion of the groove-like pattern is located on the inner side, the uniform density side portion of the entire surface uniform density, the portion located on the outer side, and the portion in contact with the inner uniform density side portion are The density may be the same as that of the uniform density side portion, and the density continuously decreases toward the outside, and it may be composed of a continuous density gradation side portion where the density becomes 0 outside the outer end portion. .
[0010]
Further, in the decorative material having the above-described configuration, the central portion of the groove-shaped pattern may have a number of line-shaped patterns perpendicular to the running direction of the groove-shaped pattern, and in addition to the groove-shaped pattern. Other patterns may be formed.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a perspective view showing an example of the decorative material of the present invention, FIG. 2 is a cross-sectional view of an adherent base material constituting the decorative material of FIG. 1, and an explanatory view of a groove-shaped recess formed thereon, and FIG. FIG.
[0012]
[Substrate]
As shown in FIG. 2, the adherend base B has a linear groove-like recess T on the surface on which the decorative sheet S is to be attached._BThis groove-shaped recess T_BIs the bottom T_bAnd side parts T on both sides_sIt consists of. That is, the bottom portion T is vertical or inclined from the flat portion F on the surface of the adherend substrate._bSide part T toward_sIs a lowered shape. Usually, left and right side T_sWidth W_TS1And W_TS2Are equal, but of course not.
[0013]
This groove-shaped recess T_BIs for reproducing the appearance of the joint material D, such as siding plates, sizing materials, floor grooves, cutting grooves for design representation of doors, furniture, etc., or recesses for connecting members, etc. For example, only one strip may be formed on the adherend substrate B as in the example shown in FIG. 12, or two or more strips may be formed on the adherend substrate B as in the example shown in FIG. May be. In any case, it suffices to form the required number according to the design appearance, function, and the like.
[0014]
Groove-shaped recess T_BCan be formed on a molded adherend by cutting with a milling machine (router), scissors, etc., or by press molding (or embossing), or in the same shape as the groove-shaped recess in the mold in advance. In this case, the convex and concave portions having reverse irregularities can be formed and formed simultaneously with the forming process of the adherend substrate.
[0015]
The overall shape (envelope surface shape) of the adherend substrate is not only a flat plate, but also an uneven surface having a step, a curved curved surface, or a shape formed by a combination thereof, and the like on the surface. A groove-shaped concave portion having a desired shape is formed at a desired position in this portion.
[0016]
There is no particular limitation on the material of the adherend substrate. For example, wood, inorganic non-metal, metal, plastic, etc. are optional. Specifically, in the wood system, for example, there are a single board, plywood, particle board, fiber board, laminated wood made of cedar, straw, firewood, lauan, teak and the like. In inorganic non-metallic systems, for example, extruded cement, slag cement, ALC (lightweight cellular concrete), GRC (glass fiber reinforced concrete), pulp cement, wood chip cement, asbestos cement, calcium silicate, gypsum, gypsum slag, etc. There are inorganic materials such as non-ceramic ceramic materials, earthenware, ceramics, porcelain, setware, glass and ceramics. Moreover, in a metal system, there exist metal materials, such as iron, aluminum, copper, for example. In the plastic system, for example, there are resin materials such as polypropylene, ABS resin, phenol resin, and various FRPs (fiber reinforced plastics).
[0017]
In addition, you may perform base treatments, such as a well-known sealing process, a sealer process, an easily bonding process, and a coloring coating process suitably, as needed. Of course, these treatments are performed before the formation of the adhesive layer when the adhesive layer is formed on the substrate side.
[0018]
[Decorative sheet]
The decorative sheet S has a straight belt-like groove pattern P, and the groove pattern P has a side portion P._S1And P_S2And central part P_CIt consists of.
[0019]
Note that the color tone of the groove pattern P is relatively the side portion P._S1And P_S2Concentration in the center P_CThe concentration is higher than that of (high concentration). Here, “density” is a value defined as a common logarithm of the reciprocal of the light reflectance (or transmittance) of the pattern. That is, the intensity of incident light with respect to the pattern is expressed as I_O, The intensity of the reflected light I_R(Or the intensity of transmitted light is I_T), The reflection density d_R= LOG_Ten(I_O/ I_R) Or transmission density d_t= LOG_Ten(I_O/ I_T). In simple terms, both sides should be darker and darker than the center. By doing in this way, it becomes the appearance that the shadow was given to the both sides or both sides of a groove-like crevice, and the bottom, and the appearance of a crevice becomes natural. In addition, the contrast and the depth and depth of the groove-like recesses are visually emphasized clearly.
[0020]
In general, the groove pattern P often has a color tone of black (or gray achromatic color), brownish brown, or yellowish brown, but can also be a color tone of amber, dark green, rosin, or the like. Furthermore, printing can be performed using an ink to which a matting agent made of powder of silica, calcium carbonate or the like is added, so that the grooved pattern P has a lower gloss (matte) than other portions. In this way, the depth of the groove-like recess is visually emphasized, and the appearance is more natural.
[0021]
The grooved pattern P is the side portion P._S1And P_S2And central part P_CIn both cases, solid printing is usually performed in many cases, but other patterns are also possible. Especially the central part P_CThe pattern is often made of grain, pear, hairline, line, etc.
[0022]
As one embodiment of the groove pattern of the present invention, as shown in FIG. 6 or FIG._CLAnd the traveling direction of the linear pattern is the Y direction perpendicular to the traveling direction of the grooved pattern. It is preferable to form the groove-like pattern in this way because the groove-like pattern becomes clearer and sharper due to visual effects, and the groove is felt deeper than the actual depth. The reason for this is not clear, but the side parts P that run perpendicular to each other_SAnd central part P_CIt is thought that this is to visually enhance and emphasize each other.
[0023]
As shown in FIGS. 4A and 4B, the layer structure of the decorative sheet S includes a base sheet 1 and a pattern layer 2 including at least a grooved pattern P.
[0024]
The substrate sheet 1 has printability for the grooved pattern P, and is not melted or broken by pressure or heat pressure at the time of sticking to the adherent substrate, and is formed in the groove-like recess of the adherent substrate. The sheet is not particularly limited as long as it is a flexible sheet that can be follow-molded, and may be selected from conventionally known sheets according to the intended use. A thermoplastic resin sheet is more preferable, but paper, non-woven fabric, or metal foil can also be used. However, these are appropriately selected depending on the intended design expression, application, and the like.
[0025]
Examples of the base sheet having flexibility as described above include, for example, polyethylene terephthalate, polybutylene terephthalate, ethylene-terephthalate-isophthalate copolymer, ethylene glycol-1,4-cyclohexanedimethanol-terephthalic acid copolymer. Polymers, thermoplastic polyester resins such as polyester thermoplastic elastomers, polypropylene resins, polyethylene, polymethylpentene, ethylene-propylene copolymers, ethylene-propylene-butene copolymers, polyolefin resins such as olefinic thermoplastic elastomers, chlorides Polyolefin resin for vinyl resin, ethylene-vinyl acetate copolymer, ethylene-vinyl alcohol copolymer, resin film (sheet) such as acrylic resin, polyamide resin, or fine paper, thin paper, Coated paper in which a resin layer is laminated such vinyl resins, glassine paper, paper such as parchment paper, using a single-layer body or a laminated body by like.
[0026]
Although the thickness of the base material sheet 1 should just be a thickness according to a use, a required physical property, etc., in order to make a decorative sheet follow the shape of the groove-shaped recessed part of a to-be-coated base material, the thinner one is preferable. However, since the mechanical strength of the decorative sheet S decreases if it is too thin, it is usually about 20 to 200 μm, although it depends on the depth of the groove-shaped recess or the material.
[0027]
The pattern layer 2 may be provided on the back side of the base sheet 1 as shown in FIG. 4 (A), or may be provided on the front side of the base sheet 1 as shown in FIG. 4 (B). In particular, when it is desired to increase the durability of the pattern layer 2, such as wear resistance, stain resistance, weather resistance, etc., the back side of the base sheet 1 is used and the base sheet 1 is used as a protective layer for the pattern layer 2. Is preferred. However, when the pattern layer 2 is formed on the back surface side of the base sheet 1, a transparent one is naturally selected as the base sheet 1.
[0028]
As illustrated in FIGS. 5 and 6, the pattern layer 2 includes a groove-shaped pattern P and another pattern P._MMay be added. Other patterns P like this_MIn addition to the wood grain pattern as shown in FIG. 5 and FIG. 6, stone pattern, cloth pattern, sand pattern, geometric pattern, hairline, character, full face, or two of these different types Combinations of the above are used.
[0029]
As a pattern layer forming method, for example, a pattern layer in which a pattern or the like is printed by a conventionally known method and material such as gravure printing, silk screen printing, offset printing, ink jet printing, and hand drawing, aluminum, chromium, gold, silver, etc. A metal thin film layer or the like formed by partially or entirely forming a metal, a metal compound, or an alloy using a known vapor deposition method or the like, and a film suitable for the intended use is used.
[0030]
The ink for forming the pattern layer is composed of a vehicle composed of a binder and the like, a colorant such as a pigment and a dye, and various additives appropriately added thereto, as in a general ink. As the binder resin, for example, an acrylic resin, a vinyl chloride-vinyl acetate copolymer, a polyester resin, a cellulose resin, a urethane resin, or the like is used as one kind or a mixture of two or more kinds. As colorants, inorganic pigments such as titanium white, carbon black, petal, yellow lead, ultramarine blue, organic pigments such as aniline black, quinacridone red, isoindolinone yellow, phthalocyanine blue, aluminum foil powder, titanium dioxide coated mica, etc. Bright pigments such as foil powder or other dyes are used.
[0031]
[Positional relationship between groove-shaped recess and groove-shaped pattern]
When the decorative sheet S is adhered to the surface of the adherend substrate B, the groove pattern P of the decorative sheet S is the groove-like recess T of the adherent substrate B._BAlign to match (match). The registration (registration) may be performed by a known means. The registration mark on the decorative sheet is detected by visual confirmation and manual operation, or a sensor such as a photoelectric tube, and the decorative sheet S or the substrate B to be adhered is detected. A method for controlling the feed is appropriately adopted.
[0032]
In the present invention, the width W of the groove pattern P_PAnd groove-shaped recess T_BBottom width W_TbAnd groove-shaped recess T_BWidth W of each side part_TS1, W_TS2The relationship of W_Tb<W_P<(W_Tb+ W_TS1+ W_TS2). Further, the width W of the side portion of the groove pattern P_PS1, W_PS2And width W at the center_PCFor (Fig. 3), the full width W_PIs appropriately determined within a range satisfying the above inequality. Normally, the width W of the central part of the groove pattern_PCIs the width W of the bottom of the groove-shaped recess._TbThe width should be approximately equal to
[0033]
Where W_P<(W_Tb+ W_TS1+ W_TS2) Is a groove-shaped recess T_BThis corresponds to the effective width of the concave portion measured along the inner peripheral portion, and means that the width of the groove-like pattern P is narrower than the effective width. And the outermost edge part of the both sides of this groove-shaped pattern is located inside the outermost edge part of each side part of this groove-shaped recessed part. That is, as shown in the positional relationships shown in FIGS._BThis means that the groove pattern P does not deviate outside. As shown in FIGS. 8A to 8C, the groove-shaped recess T_BWhen the groove-shaped pattern P deviates outside the groove-shaped recess T_BThis is because the discrepancy between the groove pattern P and the groove-shaped pattern P becomes clear by visual observation and exhibits a very unnatural appearance.
[0034]
W_P<(W_Tb+ W_TS1+ W_TS2) Means that the registration error between the decorative sheet and the adherent substrate when the decorative sheet is attached to the adherent substrate can be absorbed. The maximum allowable registration error in the left-right width direction is ΔY = ± ΔW = ± [{(W_TS1+ W_TS2) + W_Tb} -W_P] / 2.
[0035]
This point will be described in detail. W_P<(W_Tb+ W_TS1+ W_TS2), The groove-shaped concave portion T as shown in FIG._BA state where the center in the width direction and the center in the width direction of the grooved pattern P coincide with each other is an ideal positional relationship. Therefore, this state is assumed to be a registration (matching) error ΔY = ± 0. Groove-shaped recess T_BThe direction crossing the Y axis is the Y axis, and the right direction is the + direction.
[0036]
Now, as shown in FIG. 7B, the decorative sheet S is maximum in the left (−Y) direction with respect to the adherend substrate B, ΔY = −ΔW = − [{(W_TS1+ W_TS2) + W_Tb} -W_P] / 2 for the first time, the outermost end of the left side of the groove pattern P is the groove-shaped recess T for the first time._BCoincides with the outermost end of the left side surface portion of. Accordingly, this is the left maximum allowable registration error left (−Y direction).
[0037]
On the other hand, as shown in FIG. 7C, the decorative sheet S is the maximum in the right (+ Y) direction with respect to the adherend substrate B, ΔY = + ΔW = + [{(W_TS1+ W_TS2) + W_Tb} -W_P] / 2 is displaced for the first time, the outermost end of the right side of the groove-like pattern P becomes the groove-like concave portion T._BCoincides with the outermost end of the right side surface of the plate. Therefore, this is the maximum allowable registration error right (+ Y direction) in the right direction.
[0038]
If only the maximum allowable registration error ΔY = ± ΔW in the lateral width direction is to be increased, the width W of the grooved pattern P_PIt is better to be as small as possible. However, it is too small, and as shown in FIGS. 9 (A) and 9 (B), W_P≦ W_TbIn contrast, the appearance becomes unnatural and the maximum allowable error in registration is almost eliminated.
[0039]
First, as shown in FIG._P= W_TbConsider the case. Just a groove-shaped recess T_BIf the center in the width direction coincides with the center in the width direction of the grooved pattern P, and the register (alignment) error ΔY = ± 0, the groove-shaped recess T_BConcentrated side P on both sides of the bottom_S1, P_S2  Is located, and groove-shaped recess T_BBoth ends of the bottom of the pattern coincide with both ends of the pattern. Therefore, in this state, there is no unnatural appearance.
[0040]
However, if the decorative sheet S is slightly displaced in the right and left direction, for example, the right (+ Y) direction from here, as shown in FIG. Move to the center (originally less shaded area). Therefore, the external appearance of the groove-like recess becomes unnatural. Although not shown, the same applies to the case where the decorative sheet S is displaced in the left (-Y) direction. Therefore, W_P> W_TbIt is preferable that
[0041]
Furthermore, just in case, W_P≧ (W_Tb+ W_TS1+ W_TS2). In this case, as shown in FIG._BEven when the center in the width direction coincides with the center in the width direction of the groove-like pattern P and the register (alignment) error ΔY = ± 0, the groove-like recess T_BOn both sides of the groove pattern P_S1, P_S2Deviates. This is because the groove-shaped recess T, which should have no shadow,_BIt appears that there is a shadow on the outside of the screen, which is unnatural and undesirable.
[0042]
When the decorative sheet is leftward, ΔY = −W ′ = [{W_P-{W_TS1+ W_TS2) + W_Tb}] / 2 is displaced on the right side, there is no deviation of the side portions (shadows) of the groove pattern. However, on the left side, the side (shading) deviation is further increased. Similarly, when the decorative sheet is displaced to the right by ΔY = + ΔW ′, on the contrary, the deviation of the side part (shadow) is eliminated on the left side, but the deviation of the side part (shadow) increases on the right side instead. . Therefore, W_P≧ (W_Tb+ W_TS1+ W_TS2) Is not acceptable for the present invention.
[0043]
In the decorative sheet S shown in FIG. 10A, any one of the outermost end portions on both sides of the groove pattern P is a groove-shaped recess T due to an error in position synchronization (registering)._BThis is an example of a preferred embodiment for making it difficult to visually discriminate even if the outer side of each side portion deviates from the outermost end. That is, the side portion P of the groove pattern P_S1Is the continuous density gradation side portion P located on the outer side._S1 ^GRADAnd the uniform density side portion P located further inside._S1 ^UNIFIt consists of. And the uniform density side part P_S1 ^UNIFIs a solid linear strip region having the same density on the entire surface, and the continuous density gradation side portion P_S1 ^GRADIs the same density (and same hue, same saturation) as the uniform density side, and the density decreases continuously as going to the outside. Part P_S1 ^GRADThe density is 0 on the outer side of the outer end portion. Further, the side portion P of the groove pattern P_S2, The continuous density gradation side portion P located on the outer side._S2 ^GRADAnd the uniform density side portion P located further inside._S2 ^UNIFIt consists of.
[0044]
In the embodiment illustrated in FIG. 10A, both side portions P_S1And P_S2Inside edge (P_S1 ^UNIFAnd P_S2 ^UNIFThe density is zero from the uniform density discontinuously at the inner end). Of course, both sides P_S1And P_S2Similarly to the outer end portion, the continuous density gradation side portion may be formed at the inner end portion. However, since the inner end portion of the groove pattern P becomes a shadow inside the groove recess and is not noticeable, it is not always necessary to form the continuous density gradation side portion. Rather, it is preferable that the inner end portion has a discontinuous concentration because the depth of the groove-like unevenness can be visually enhanced. Similarly, the uniform density side P_S2 ^UNIFIs a solid linear strip region having the same density on the entire surface, and the continuous density gradation side portion P_S2 ^GRADIs the same density (and same color tone, same saturation) as the uniform density side, and the density decreases continuously as going to the outside, and the continuous density gradation side The density is 0 outside the outer end of the part.
[0045]
The effect in such an aspect is represented by the side portion P._S1Will be described (side P_S2The same applies to. As shown in FIG. 10B, it is assumed that the decorative sheet S is displaced from the normal position by + ΔY (ΔY in the right direction in the drawing) in the Y direction (right side in the width direction) with respect to the adherend substrate B. . If the decorative sheet S shown in FIG._S1If the density discontinuously changes from the predetermined uniform density to 0 at the outer edge, even if the maximum allowable registration error ΔY = ± ΔW is taken in the left-right width direction as described above, the decorative sheet is applied. When a registration error of ΔY> ΔW occurs in the attaching process, the side portion P is formed on the outer side of the groove-like recess on the adherend substrate._S1Deviates to the right (Y direction) by ΔY ′ = ΔY−ΔW. Since this deviating portion is a flat portion of the adherend substrate, it is very conspicuous and the registration error (positional deviation) becomes clear.
[0046]
On the other hand, like the decorative sheet S shown in FIG._S1Is the continuous density gradation side P_S1 ^GRADIn this case, as shown in FIG._S1 ^GRADAt the outer end of the side P_S1Concentration of the side P continuously_S1Other external pattern P_MAs the density of the part gradually approaches, it is difficult to visually recognize the presence of the deviated part. Further, as described above, the uniform density side portion P_S1 ^UNIFAnd central part P_CLIs the groove-shaped recess T_BSide part T_SThe side surface T_SIs a narrow groove-shaped concave portion, and has a small cross-sectional area with respect to the line-of-sight direction from the front and is also a shadow, so the boundary line is hardly noticeable visually. Also, the uniform density side P on the left side of the figure_S2 ^UNIFThe inner end of the groove is a groove-shaped recess T_BBottom T_bAlthough it moves in, it is also not conspicuous because it is also a shadowed part in a narrow groove-like recess. Therefore, the decorative sheet S as shown in FIG. 10A has a much larger allowable width for the registration error when sticking to the adherend substrate B.
[0047]
[Method of sticking decorative sheet to substrate]
When sticking a decorative sheet to an adherend substrate, it is usually attached (adhesive lamination) with an adhesive layer in between. However, when the decorative sheet or the adherend substrate itself has adhesiveness, it may be attached without an adhesive. The adhesive is formed on the decorative sheet side, the adherent substrate side, or both the decorative sheet side and the adherent substrate side.
[0048]
Adhesives include polyvinyl acetate, vinyl chloride-vinyl acetate copolymer, vinyl acetate resin of ethylene-vinyl acetate copolymer, poly (meth) acrylate, poly (meth) acrylate, (meth) Acrylic resin such as methyl acrylate- (meth) butyl acrylate copolymer (however, (meth) acryl means acrylic or methacrylic), polyamide resin, chlorinated polypropylene, thermoplastic urethane resin, etc. A thermosetting resin such as a resin, a thermosetting urethane resin, an epoxy resin, a phenol resin, or a melamine resin is used.
[0049]
The thermosetting urethane resin is usually a two-component curable urethane resin that uses a polyol as a main component and an isocyanate as a crosslinking agent (curing agent). As the polyol, one having two or more hydroxyl groups in the molecule, for example, polyethylene glycol, polypropylene glycol, acrylic polyol, polyester polyol, polyether polyol, polycarbonate polyol, polyurethane polyol and the like are used. As the isocyanate, a polyvalent isocyanate having two or more isocyanate groups in the molecule is used. For example, aromatic isocyanate such as 2,4-tolylene diisocyanate, xylene diisocyanate, 4,4′-diphenylmethane diisocyanate, or 1,6-hexamethylene diisocyanate, isophorone diisocyanate, hydrogenated tolylene diisocyanate, hydrogenated diphenylmethane diisocyanate, etc. Aliphatic (or alicyclic) isocyanates, or adducts or multimers of the above-mentioned various isocyanates can also be used. For example, there are tolylene diisocyanate adducts, tolylene diisocyanate trimers, and the like.
[0050]
Alternatively, these isocyanates may be used as blocked isocyanates, and the reaction may be initiated by releasing the blocks by heating. The blocked isocyanate is a compound obtained by temporarily reacting the isocyanate with a blocking agent such as alcohols, phenols, amines and the like to prevent (block) isocyanate group reactivity. Usually, in order to lower the dissociation temperature of the blocking agent to an appropriate temperature range, a known product such as a metal soap or an amine is used as the dissociation catalyst.
[0051]
The amount of adhesive applied varies depending on the substrate and decorative sheet material, adhesive material, required adhesive strength, physical properties, etc., but usually 5-100 g / m.²Degree.
[0052]
The method of sticking the decorative sheet to the adherend substrate is based on a method such as a vacuum forming method or a roller pressing method.
[0053]
As disclosed in Japanese Patent Publication No. 56-45768 and Japanese Patent Publication No. 60-58014, the vacuum forming method is performed by placing a decorative sheet on the surface of the substrate to be adhered via an adhesive layer. In this method, the decorative sheet is adhered to the surface of the substrate to be adhered by following the surface shape by the pressure difference caused by vacuum suction from the material side. If necessary, pressurizing means may be used in combination. For example, pressure is applied to the decorative sheet from the side opposite to the substrate to be applied (so-called “vacuum pressure forming”), or pressure is applied by a rubber film (so-called “vacuum press forming”). . Usually, prior to vacuum suction, the decorative sheet is heated and softened by an infrared radiation heater or the like.
[0054]
As the roller pressing method, when the laminate surface is flat, there is a normal so-called roller pressing method in which a decorative sheet is pressed and adhered to a substrate by (usually) a single pressing roller (laminating roller), For a columnar base material having a laminated surface composed of a plurality of side surfaces, a corresponding so-called wrapping method using a plurality of pressing rollers (laminate rollers) (Japanese Patent Publication No. 61-5895, Japanese Patent Publication No. 57-5183, Japanese Patent Publication No. 59-51898). And in order to follow the inside of a groove-shaped recessed part and to stick a decorative sheet, as disclosed in Japanese Patent Publication No. 57-5183, a ridge part that can be fitted into the groove-shaped recessed part on the surface of the laminating roller Is preferably provided. Or it is also one of the preferable aspects to use the roller which made the surface of the lamination roller the soft rubber whose JIS rubber hardness is 60 degrees or less.
[0055]
FIG. 11 is a schematic configuration diagram showing an example of a sticking method to which the wrapping method is applied, and this will be described below.
[0056]
In FIG. 11, in a state where the columnar adherent substrate B is placed on the plurality of feed rollers 10, the adherend substrate B is conveyed in the longitudinal direction (arrow direction) to convey the adherent substrate B. The decorative sheet S is supplied to the adherent substrate B at a speed synchronized with the speed, and the decorative sheet S is pressed against the adherent substrate B by the laminating rollers 11a to 11d to be pressure bonded. Such pressure bonding is performed stepwise for each small area in the Y direction that is substantially perpendicular to or perpendicular to the longitudinal direction of the adherend substrate B. In the figure, each side to be laminated of the substrate B to be laminated is a plane whose cross section is a polygonal line, and each side forms a single flat surface, so a dedicated laminating roller is provided for each side. Use. Lamination of the decorative sheet S to the substrate B is performed in the order of the laminating rollers 11a, 11b, 11c, and 11d, so that the laminating process is sequentially performed by sequentially pressing the adjacent side surfaces for each small area. To do. Note that only the portion of the laminating roller provided on the front side of the drawing with respect to the adherend substrate B is displayed for the sake of simplicity. As shown in FIG. 11B, the upper surface of the laminating roller 11a is a flat portion 11a having a cylindrical surface (pressurized surface).₁And a ridge 11a that can be fitted into the groove-shaped recess of the adherend substrate B₂It consists of. Other laminating rollers consist only of cylindrical surfaces.
[0057]
The laminating roller is usually a metal roller such as iron (or an iron alloy) or copper, an elastic roller in which an elastic body such as silicon rubber is coated around a metal shaft core, or a known ceramic roller. Can be used.
[0058]
The laminating roller may be used in a heated state. By doing so, it is possible to omit preheating the adhesive layer and the adherend substrate in advance so that the decorative sheet is easily formed in the groove-shaped recess, or to perform the preheating temperature at a lower temperature. it can. Conversely, if the adhesive layer, the substrate to be adhered, etc. are sufficiently preheated, the laminating roller can be cooled and used without being heated. Here, cooling or heating refers to heating when the temperature is higher than the temperature of the decorative sheet and / or the adhesive layer immediately before reaching the laminating roller, and cooling when it is lower.
[0059]
And after passing each lamination roller 11a-11d in order to laminate the decorative sheet S on the adherend base material B, the decorative sheet S is laminated on the adherent base material B, and the decorative sheet S is The decorative material D adhered to the desired surface including the inside of the groove-shaped recess of the adherend substrate B is obtained.
[0060]
In the laminating apparatus conceptually shown in FIG. 11, when the decorative sheet S is pressed against the substrate B and laminated, an adhesive layer is formed on the decorative sheet S side by the adhesive coating apparatus 12 (performed appropriately). A preheating device for drying the solvent portion in the layer or preheating the decorative sheet is not shown). Further, the adherend base B may be supplied after being preheated by a preheating device 13 such as hot air or an infrared heater. The same applies to the roller heating method often used for laminating on a flat plate.
[0061]
In addition, in FIG. 11, the preheating device 13 for the adherend substrate B, when the adhesive layer is formed on the adherend substrate B side, can be used for a solvent or the like in the adhesive if the heating means is hot air or the like. You may use as a drying apparatus of a volatile component. Similarly, a preheating device may be provided on the decorative sheet S side, and this may be used as a drying device for the volatile components in the adhesive. Such a preheating device may be a device using known heating means such as hot air, an infrared heater, a dielectric heater, or the like. When the organic solvent in the adhesive is also dried, it is preferable that the preheating device uses hot air instead of an infrared heater from the viewpoint of explosion and fire prevention.
[0062]
[Uses of cosmetic materials]
The decorative material of the present invention is an interior material such as a building wall, floor and ceiling, an exterior material such as an outer wall, a surface material of furniture such as a fence, a desk and a cabinet, and a surface of a fitting such as a door, a door frame and a window frame. It is used as a surface material for construction members such as wood, skirting boards, waist walls, and rounded edges. Among them, typical examples include a molding material 23 of the heel door 20 as shown in FIG. 12 and a siding decorative material 30 as shown in FIG.
[0063]
【Example】
Here, a concrete description will be given by taking as an example the mallet material of a coffin door of the type shown in FIG. As shown in FIG. 12 (A), the eaves door 20 includes an eaves 21 (a vertical eave 21a, a horizontal eaves 21b, an intermediate eaves 21c), an end plate 22, a molding material 23, a handle 24, and a hinge 25. Among these, the molding material 23 has a structure as shown in the sectional perspective view of FIG. 12B, and the dimensions are a = 32 mm, b = 3 mm, and c = 14 mm.
[0064]
The adherend substrate B was processed into a shape as shown using a medium density fiberboard as a material. That is, one groove-shaped recess T on the surface_BThe angle α between the normal line of the bottom and the side surface of the groove-shaped recess is cut by milling₁, Α₂Was 30 ° on both sides. Each dimension of the groove-shaped recess is W in FIG._TS1= 1 mm, W_Tb= 7mm, W_TS2= 1 mm.
[0065]
As the decorative sheet S, a decorative sheet having a pattern layer 2 printed on the back surface of the base sheet 1 was prepared as shown in FIG. As the base sheet 1, a polypropylene thermoplastic elastomer sheet having a thickness of 100 μm was used. Then, a two-part curable urethane resin is used as a binder resin, and an ink formed by adding a pigment mainly composed of a petal, yellow lead, and carbon black to the grooved pattern P (2 ) Was printed. In addition, other patterns P made of wood grain around the perimeter_MFinally, a concealed solid layer was printed on the entire surface using an ink formed by adding a two-component curable urethane resin as a binder resin and a pigment mainly composed of titanium white to the back surface thereof. All these printings were performed by a gravure printing method.
[0066]
The groove pattern P formed on the decorative sheet S is a pattern as shown in FIG. In order from the right side of the figure, a continuous density gradation side portion P having a width of 0.5 mm._S1 ^GRAD, Uniform density side part P of width 0.5mm_S1 ^UNIF, 6mm wide central part P_CL, Uniform density side part P of width 0.5mm_S2 ^UNIF, Continuous density gradation side part P having a width of 0.5 mm_S2 ^GRADWidth W as a whole_P= 8 mm straight strip pattern.
[0067]
Here, the continuous density gradation side portion P_S1 ^GRADIs a brownish brown color, and the reflection density is the value when only the pattern is printed on a white sheet (the other pattern is not overprinted), the inner edge (left edge) Was 1.5 and the outer end (right side) was 0. Further, the uniform density side portion P_S1 ^UNIFIn the same measurement method, the reflection density was adjusted to be 1.5 over the entire surface. And the uniform density side part P_S2 ^UNIF, Continuous density gradation side P_S2 ^GRADThe reflection density of the uniform density side portion P is the same measurement method value._S1 ^UNIF, Continuous density gradation side P_S1 ^GRADAnd left-right symmetry. The central part P_CLThe pattern was a line segment as shown in the figure, and the ink color was reddish brown.
[0068]
Using the decorative sheet S thus obtained and the adherend substrate B, using a lapping machine similar to that shown in FIG. 11 (the shape of the adherend substrate is slightly different), the groove shape of the decorative sheet S While aligning the position of the pattern and the groove-shaped concave portion of the adherend substrate B with an optical detector, the ridge portion 11a is formed at the center portion.₂And both sides are cylindrical flat portions 11a₁Using the silicon rubber-coated laminating roller 11a, the decorative sheet S is adhered to the adherend substrate B in the groove-shaped recess, and then the pressing roller 11b, By adhering the decorative sheet S using 11c and 11d, the decorative sheet S was adhered to the surface of the adherend substrate B including the inner surface of the groove-shaped recess as shown in the sectional perspective view of FIG. . Note that the pattern layer side of the decorative sheet S faces the surface side of the adherent substrate B between the decorative sheet S and the adherent substrate B via an adhesive made of a vinyl acetate resin emulsion. I went in the direction.
[0069]
【The invention's effect】
As described above, the decorative material of the present invention has a groove-shaped recess that is well recognized by both visual and tactile senses on the surface, and has a good appearance design. Moreover, since the groove-shaped recess is not formed by cutting as in the prior art, the groove-shaped recess is not exposed, and it is not necessary to select a substrate having a good appearance design as the adherend substrate, and the decorative sheet is peeled off by cutting. No worries In addition, even if a misalignment (registration error) occurs between the decorative sheet and the substrate to be adhered, there is no sense of incongruity, and the allowable range of alignment accuracy during processing is widened. Yield is also improved.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of a decorative material of the present invention.
FIG. 2 is a cross-sectional view of an adherend base material constituting the decorative material of FIG. 1 and an explanatory view of a groove-like recess formed thereon.
3 is a plan view of a decorative sheet constituting the decorative material of FIG. 1. FIG.
FIG. 4 is a cross-sectional view of a decorative sheet used in the present invention.
FIG. 5 is a plan view of a decorative sheet obtained by adding another pattern to the groove pattern.
FIG. 6 is a plan view of a decorative sheet obtained by adding another pattern to the groove pattern.
FIG. 7 is an explanatory diagram showing a favorable positional relationship between the groove-shaped concave portion of the adherend substrate and the groove-shaped pattern of the decorative sheet.
FIG. 8 is an explanatory diagram showing an unfavorable positional relationship between the groove-shaped concave portion of the adherend substrate and the groove-shaped pattern of the decorative sheet.
FIG. 9 is an explanatory diagram showing a positional relationship when the width of the groove pattern on the decorative sheet is small.
FIG. 10 is an explanatory view showing a preferred example of the decorative material of the present invention.
FIG. 11 is a schematic configuration diagram showing an example of a sticking method to which a wrapping method is applied.
FIG. 12 is an explanatory view showing a coffin door as a typical example of the decorative material of the present invention.
FIG. 13 is an explanatory view showing a siding decorative material as a typical example of the decorative material of the present invention.
[Explanation of symbols]
B Substrate
D Cosmetic material
S decorative sheet
1 Base sheet
2 Pattern layer
10 Feed roller
11a to 11d Laminating roller
11a₁  Flat part
11b₂  Ridge
12 Adhesive coating equipment
13 Preheating device
20 Amber door
21 框
22 End plate
23 Mall material
24 Handle
25 Hinge
30 paneling decorative material
T_B  Groove-shaped recess
T_b  bottom
T_s  Side part
P groove pattern
P_S1, P_S2  side
P_C  Center
P_CL  Linear pattern

Claims (5)

A decorative material obtained by sticking a decorative sheet having a linear groove pattern on the surface of a substrate to be coated having a linear groove recess on the surface, the groove pattern of the decorative sheet having a shape covered It has a linear strip shape corresponding to the groove-shaped recess of the wearing base, and both side portions having a relatively high color density, and a color density relatively lower than both sides sandwiched between the both side portions. in Rukoto such from a central portion, a groove-like pattern thereof has both sides is a dark color tone darker than the central portion, and a groove-like pattern of the decorative sheet is located synchronized with recessed grooves of the Chakumotozai The outermost end portion of each side portion of the groove-like pattern is located on the inner side of the outermost end portion of each side surface portion of the groove-like recess portion. Between the width W _P of the groove-shaped pattern, the width W _Tb of the bottom of the groove-shaped recess, and the widths W _TS1 and W _TS2 of the side surfaces of the groove-shaped recess,
W _Tb <W _P <(W _Tb + W _TS1 + W _TS2 )
The makeup of claim 1, wherein the outermost end portion of each side portion of the groove-shaped pattern is located inside the outermost end portion of each side surface portion of the groove-shaped recess. Wood.   Each side of the groove-shaped pattern is located on the inner side, the uniform density side part of the uniform density on the entire surface, and the part located on the outer side and in contact with the uniform density side part on the inner side has the same density as the uniform density side part 3. The cosmetic material according to claim 1, further comprising a continuous density gradation side portion having a density continuously decreasing toward the outside and having a density of 0 outside the outer end portion. .   The decorative material according to any one of claims 1 to 3, wherein the central portion of the groove-shaped pattern has a number of line-segment patterns perpendicular to the running direction of the groove-shaped pattern.   The decorative material according to any one of claims 1 to 4, wherein another pattern is formed in addition to the groove-shaped pattern.

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