JP2006239926A - Decorative material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To well keep surface smoothness while making it possible to visually confirm unevenness excellent in depth feeling in a decorative material. <P>SOLUTION: The decorative material 10 is constituted of a surface layer 11 comprising a transparent thermoplastic resin film or sheet, a printing layer 12 formed by applying decorative printing to the surface layer 11 and the base material 13 made of a thermoplastic resin laminated on the surface layer 11 on the side of the predetermined layer 12. The thickness of the printing layer 12 is set to 10-500 μm. When the melt softening temperature of the surface layer 11 is set to t1, the melt softening temperature of the predetermined layer 12 is set to t2 and the melt softening temperature of the base material 13 is set to t3, t3<t2≤t1(°C) is satisfied. The printing layer 12 is formed into a shape having unevenness in a cross-sectional view and the unevenness is provided so as to be embedded in the base material 13. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a decorative material, and more particularly, to a decorative material capable of making the surface smooth while allowing the surface to have a sense of unevenness.

  2. Description of the Related Art Conventionally, an interior material for a bathroom or the like is known in which a sheet-like decorative material is bonded to a predetermined plate-like member or the like. In such a decorative material, when a pattern or pattern with a feeling of unevenness is exposed, a form (hereinafter referred to as Conventional Technology 1) in which unevenness is formed by embossing the surface of the decorative material with a roll or a mold, A form (hereinafter, referred to as Conventional Technology 2) in which printing is performed to express unevenness on the surface is used.

  However, in the prior art 1, when the depth of the recessed part by embossing is made small, the unevenness | corrugation which appears on the surface becomes inconspicuous. On the other hand, when the depth is increased, irregularities are also formed on the back surface of the decorative material, resulting in another inconvenience that the adhesive area with the plate member is reduced and the adhesive force is reduced. In addition, not only is the cleaning property insufficient, for example, dust and other contaminants are likely to remain inside the recessed portion, but, for example, when a shower hook is attached to the surface of the decorative material, moisture from the joint surface thereof There is also an inconvenience that water enters and impairs the water stoppage.

  Further, even in the conventional technique 2, since the surface is uneven by printing, there arises a disadvantage that the cleaning property and the water stoppage are lowered as in the conventional technique 1. In order to eliminate such inconvenience, it is possible to apply a clear coating to the printed surface, and then polish the painted surface to ensure surface smoothness. In addition to being enormous, it also causes a reflective inconvenience that the burden of the polishing work becomes large.

[Object of invention]
The present invention has been devised by paying attention to such inconveniences, and the object thereof is to easily manufacture, maintain good surface smoothness, and excel in depth. It is providing the cosmetics which can make an unevenness | corrugation visible.

In order to achieve the above object, the present invention provides a surface layer composed of a transparent thermoplastic resin film or sheet, a printed layer formed by decorative printing on the surface layer, and a heat layer laminated on the printed layer side of the surface layer. A decorative material comprising a base material made of plastic resin,
When the thickness of the printed layer is set to 10 μm to 500 μm, the melt softening temperature of the surface layer is t1, the melt softening temperature of the printed layer is t2, and the melt softening temperature of the substrate is t3.
t3 <t2 ≦ t1 (° C.)
While satisfying
The printing layer has a configuration in which the printed layer is formed in a shape having unevenness in a cross-sectional view, and the unevenness is provided so as to be buried in the base material.

  In the present invention, the thickness of the surface layer is preferably set to 25 μm to 100 μm.

  The decorative printing may be screen printing, and the ink used for the screen printing may be UV ink, or one-component or two-component reactive ink kneaded with glass beads or crosslinked acrylic beads.

  In addition, a configuration in which at least one auxiliary printing layer is provided between the surface layer and the base material and the auxiliary printing layer and the printing layer are exposed in the depth direction is preferably employed.

  Moreover, the structure that the said base material is formed with a multilayer structure is employable.

In the present specification and claims, the “melt softening temperature” is used for the temperature by the following measuring method.
That is, the measurement is carried out by placing a coin (if it has heat resistance and a high heat conductivity and can be a mark that does not deform) on the hot plate, and raising the temperature of the hot plate to place the film or sheet in the coin. It is carried out by placing a weight on the top and applying a constant pressure (about 1 Kgf / cm ² ) from above. In the case of a sheet, after leaving it to stand for about 30 seconds, the temperature at which coin marks (matte and dent deformation) start to be attached to the coin contact surface, and in the case of ink used for a printing layer, the ink is the film or sheet. The temperature at which the film is transferred to a coin, and in the case of a film, the temperature at which it is matted and melted is defined as the melt softening temperature.

  The term “transparent” is used as a concept including colored and transparent, colorless and transparent.

  According to the present invention, since the printed layer formed on the back surface side of the surface layer is buried in the base material, the surface layer can be exposed by forming irregularities on the depth side by the thickness of the surface layer. A design effect with a feeling can be produced. In addition, since the melt softening temperature is set as described above, when the surface layer on which the print layer is formed and the base material are laminated, the print layer is heated by pressing to a temperature at which only the base material is melted. It can be easily and smoothly embedded in the base material, and the surface smoothness of the surface layer can be kept good. Thereby, it becomes possible to improve the cleaning property and water-stopping property of the cosmetic material surface.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
FIG. 1 is a cross-sectional view illustrating a layer structure of a decorative material according to the first embodiment. In this figure, a decorative material 10 includes a surface layer 11, a printed layer 12 formed on the lower surface side of the surface layer 11 in FIG. 1, and a base layer laminated on the printed layer 12 side (lower surface side in the drawing) of the surface layer 11. The material 13 is provided.

  The surface layer 11 is made of a transparent thermoplastic resin film or sheet. Specifically, polyester films such as O-PET (biaxially stretched PET), A-PET (amorphous PET), PBT, PET-G (amorphous PET film), acrylic (PMMA) films, polycarbonate (PC ) -Based film, and polyolefin-based films such as PP and PO (polyolefin resin). The thickness of the surface layer 11 is set to 25 μm to 100 μm. If it is less than 25 μm, it causes wrinkles and tears during printing of the printing layer 12, while if it exceeds 100 μm, it causes warpage of the entire decorative material 10.

  The printing layer 12 can be exemplified by screen printing and gravure printing, but in this embodiment, the printing layer 12 is formed by screen printing. The printed layer 12 is formed in a shape having irregularities in a cross-sectional view so as to represent a pattern or a pattern on the surface side of the surface layer 11. The printing layer 12 is set so that the thickness is in the range of 10 μm to 500 μm. When the thickness is less than 10 μm, the printed layer 12 is thin, so that it is difficult to visually recognize the depth and the three-dimensional effect from the outside of the surface layer 11. The load for burying in 13 becomes large, and the surface smoothness of the surface layer 11 is impaired. Examples of the ink used for the printing layer 12 include a one-component or two-component reactive ink in which UV ink, glass beads, or crosslinked acrylic beads are kneaded so that the ink can be efficiently formed to the above-described thickness.

  The base 13 is made of a thermoplastic resin having a sheet shape with a thickness of 0.8 to 5.0 mm, and specific examples include ABS, PP, (HI) PS, PS, AES and the like. The base material 13 is formed by arbitrarily selecting and using concealing pellets and transparent pellets by pigmentation.

Here, when the melt softening temperature of the surface layer 11 is t1, the melt softening temperature of the printing layer 12 is t2, and the melt softening temperature of the substrate 13 is t3,
t3 <t2 ≦ t1 (° C.) (Formula A)
Configured to meet. Specifically, the temperature t1 is set in the range of 100 to 250 ° C., the temperature t2 is 90 to 170 ° C., and the temperature t3 is set to 70 to 130 ° C. while satisfying the above (formula A). When t3 ≧ t2 or t3 ≧ t1, the surface layer 11 and the print layer 12 are stretched or distorted during heat sealing to be described later, and the pattern reproducibility is lowered. On the other hand, when t2> t1, the surface layer 11 is melted at the time of heat-sealing, and the surface specularity is impaired or the surface performance is changed.

  In the manufacturing method of the decorative material 10 of the present invention, first, after the printing layer 12 is formed on the back side of the surface layer 11 by decorative printing, as shown in FIG. 2, the printing layer 12 side of the surface layer 11 (in FIG. 2) The base material 13 is heat-sealed and laminated on the lower surface side. Examples of the heat-sealing method include simultaneous lamination with a mirror roll and hot press with a mirror plate. Moreover, the heating temperature of the surface layer 11 and the base material 13 at the time of heat sealing is set to a temperature lower than the melt softening temperature t2 of the printing layer 12 and higher than the melt softening temperature t3 of the base material 13. Thereby, only the base material 13 is melt-softened without the surface layer 11 and the printing layer 12 being melt-softened, the surface layer 11 and the base material 13 are heat-sealed, and printing is performed while maintaining the reproducibility of the pattern of the printing layer 12. The unevenness of the layer 12 is provided so as to be buried in the base material 13.

  As shown in FIG. 3, the decorative board 10 formed in this way is attached to the surface of the panel base material 15 made of plywood, MDF, particle board, inorganic board, or the like via an adhesive 16 such as reactive hot melt. A laminated body is used as interior and exterior materials such as bathrooms, kitchens, and furniture, office supplies, automobile parts, and the like.

  Therefore, according to the first embodiment, since the print layer 12 is heat-sealed so as to be absorbed into the base material 13, not only the surface smoothness of the surface layer 11 can be maintained but also the base material 13. The lower surface in FIG. 1 can also be kept smooth. As a result, it is possible to improve the production efficiency by reducing the step of separately finishing the surface of the surface layer 11 and to improve the adhesion to the panel base material 15. In addition, the unevenness of the printed layer 12 can be visually recognized on the depth side from the back surface (the lower surface in FIG. 1) of the surface layer 11, and a design effect excellent in stereoscopic effect can be exhibited.

  Next, embodiments other than the first embodiment of the present invention will be described. In the following description, the same or equivalent components as those in the first embodiment are denoted by the same reference numerals as necessary, and the description is omitted or simplified.

[Second Embodiment]
FIG. 4 shows a second embodiment according to the decorative material of the present invention. In the second embodiment, a primer ink layer or an adhesive layer 20 is provided between the printing layer 12 and the substrate 13. According to this, even when the surface layer 11 is made of a polyester film and the base material 13 is made of ABS, it is possible to increase their adhesive strength.

[Third Embodiment]
FIG. 5 shows a third embodiment according to the decorative material of the present invention. In the third embodiment, the primer ink layer 20 of the second embodiment is constituted by a gravure-printed primer ink that exposes a pattern. The primer ink layer 20 is formed by printing between the printing layer 12 and the base material 13 (hereinafter referred to as “solid printing”). According to this, the screen-printed printing layer 12 and the primer ink layer 20 overlap in the depth direction, and the three-dimensional effect of the pattern can be further improved.

[Fourth Embodiment]
FIG. 6 shows a fourth embodiment according to the decorative material of the present invention. In the fourth embodiment, a gravure printing layer 22 is provided between the surface layer 11 and the printing layer 12 as compared with the third embodiment. The gravure printing layer 22 is configured using inks of 1 to 4 colors and is not solid printing, that is, is formed so as to partially provide a non-printing area. According to this, the gravure printing layer 22 appears to overlap with the printing layer 12 and the primer ink layer 20, and the expressive power of the pattern can be further enriched.

[Fifth Embodiment]
FIG. 7 shows a fifth embodiment according to the decorative material of the present invention. In the fifth embodiment, the printing layer 12 is set to be transparent with respect to the second embodiment, and a high-brightness ink layer 24 is provided between the printing layer 12 and the primer ink layer or the adhesive layer 20. It is. That is, the printing layer 12 is printed using a medium ink, or an ink having a matte tone by adding a pigment in an amount not concealed in the medium ink or by adding bead particles to the medium ink. The high-brightness ink layer 24 is applied by printing on the printing layer 12 side of the surface layer 11 using a pearl-based or mirror-based ink. According to this, the three-dimensional effect of the printing layer 12 can be made more conspicuous by diffusing the reflected light entering from the outside of the surface layer 11.

[Sixth Embodiment]
FIG. 8 shows a sixth embodiment according to the decorative material of the present invention. The sixth embodiment is different from the fifth embodiment in that a gravure printing layer 22 is provided as in the fourth embodiment, and the base material 13 has a two-layer structure including an inner layer 13A and an outer layer 13B. is there. The inner layer 13 </ b> A and the outer layer 13 </ b> B are each formed using concealment pellets by pigmentation. According to this, since the outer layer 13B is not exposed to the outside of the surface layer 11, the design effect can be maintained even if a recycled material or the like with a low cost burden is used for the outer layer 13B.

[Seventh Embodiment]
FIG. 9 shows a seventh embodiment according to the decorative material of the present invention. In the seventh embodiment, the inner layer 13A is made transparent using transparent pellets as compared to the sixth embodiment. According to this, the depth feeling can be further improved by the thickness of the inner layer 13A.

  The primer ink layer 20, the gravure printing layer 22, and the high brightness ink layer 24 constitute an auxiliary printing layer.

Although the best configuration, method and the like for carrying out the present invention have been disclosed in the above description, the present invention is not limited to this.
That is, the present invention has been particularly shown and described with respect to particular embodiments, but without departing from the scope of the technical idea and purpose of the present invention. Alternatively, various modifications can be made by those skilled in the art in the direction and other detailed configurations.

The schematic fragmentary sectional view which shows the layer structure of the decorative material which concerns on 1st Embodiment. The exploded view of FIG. The fragmentary sectional view which shows the state made into the decorative panel using the said decorative material. Sectional drawing similar to FIG. 1 of the decorative material which concerns on 2nd Embodiment. Sectional drawing similar to FIG. 1 of the decorative material which concerns on 3rd Embodiment. Sectional drawing similar to FIG. 1 of the decorative material which concerns on 4th Embodiment. Sectional drawing similar to FIG. 1 of the decorative material which concerns on 5th Embodiment. Sectional drawing similar to FIG. 1 of the decorative material which concerns on 6th Embodiment. Sectional drawing similar to FIG. 1 of the decorative material which concerns on 7th Embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Cosmetic material, 11 ... Surface layer, 12 ... Printed layer, 13 ... Base material

Claims (5)

A makeup comprising a surface layer made of a transparent thermoplastic resin film or sheet, a printed layer formed by decorative printing on the surface layer, and a thermoplastic resin substrate laminated on the printed layer side of the surface layer Material,
When the thickness of the printed layer is set to 10 μm to 500 μm, the melt softening temperature of the surface layer is t1, the melt softening temperature of the printed layer is t2, and the melt softening temperature of the substrate is t3.
t3 <t2 ≦ t1 (° C.)
While satisfying
The printing layer is formed in a shape having unevenness in a sectional view, and is provided so that the unevenness is buried in the base material.   The cosmetic material according to claim 1, wherein the thickness of the surface layer is set to 25 μm to 100 μm.   The decorative printing is screen printing, and the ink used for the screen printing is UV ink, or one or two-component reactive ink kneaded with glass beads or crosslinked acrylic beads. The cosmetic material according to claim 1 or 2.   The at least one auxiliary printing layer is provided between the surface layer and the substrate, and the auxiliary printing layer and the printing layer are exposed in the depth direction. Cosmetics.   The decorative material according to any one of claims 1 to 4, wherein the base material has a multilayer structure.

Images