JP2009083347A - Decorative body and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a decorative body and its manufacturing method which can enrich the variety of the color tones and express the stereoscopic sense or the feel of a material of the various patterns more delicately than in the past while avoiding the decline in production efficiency and in the sudden cost increase. <P>SOLUTION: The decorative body 10 is composed of having an undercoating layer 14 consisting of a polarization coating applied on a shaping substrate 12 and a masking layer 16 which is liquid pressure transferred onto the top surface further above the undercoating layer 14 and bars fluoroscopic views of at least a part of the undercoating layer 14. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a decorative body and a manufacturing method thereof.

  Conventionally, in the field of interior parts for automobiles, there is a technology to improve the design of interior parts by applying patterns such as wood grain or marble on the surface of the molded base material molded into the shape of interior parts. Proposed.

For example, Patent Documents 1 and 2 disclose a technique in which two types of decorative print layers having different transfer patterns are laminated on a molded substrate in order to give a pattern a three-dimensional effect, a texture, and the like. Patent Documents 3 and 4 disclose techniques for processing the molded base material itself, such as kneading a luster pigment into the molded base material or generating the molded base material from a plurality of colored resin materials. . Furthermore, Patent Document 5 discloses a technique for forming a coating film of a magnetic paint on a molded substrate.
JP-A-6-166300 Japanese Patent Laid-Open No. 11-348223 JP 2000-71693 A JP 2006-224613 A Japanese Patent Laid-Open No. 11-348222

  However, in the techniques disclosed in Patent Documents 1 and 2, since the transfer operation of the transfer pattern needs to be performed twice, the production efficiency is low and the cost reduction is limited. In addition, since the film thickness is small in the case of transfer, there is a problem that there is a certain limit in the expression of the stereoscopic effect. Further, in the techniques disclosed in Patent Documents 3 and 4, since it is necessary to process the molded base material itself, in addition to high cost and lack of versatility, when printing is performed on the surface, the three-dimensional There was a problem that the feeling was easily buried. Furthermore, in the technique disclosed in Patent Document 5, it is necessary to deflect a part of the magnetic powder in one direction by magnetic force, and there is a limit in improving the production efficiency, and transfer printing on the magnetic paint is performed. There is a problem that the magnetic paint is buried by the ink pattern and the three-dimensional effect is lost.

  Also, with these conventional technologies, when a pattern is formed on the lower layer side of the decorative print layer, the pattern on the lower layer side and the pattern on the decorative print layer are mixed, resulting in a loss of pattern consistency and relevance. was there.

  The present invention has been made in order to solve such problems, and while avoiding a decrease in production efficiency and an increase in cost, the present invention enriches changes in color tone that did not exist in the past. An object of the present invention is to provide a decorative body that can delicately express the three-dimensional effect and texture of a pattern, and a method for manufacturing the decorative body.

  (1) In the present invention, an undercoat layer made of a polarizing paint applied on a molding substrate and a hydraulic pressure transfer to the upper surface side of the undercoat layer prevent the see-through of at least a part of the undercoat layer. It is a decorative body characterized by having a masking layer.

  (2) The present invention is also the decorative body according to (1) above, wherein the polarizing paint contains a luster pigment.

  (3) The decorative body according to (1) or (2), wherein the masking layer is an impermeable layer that renders at least part of the undercoat layer invisible. It is.

  (4) In the present invention, the masking layer also includes a first masking portion having a first transmittance and a second masking portion having a second transmittance different from the first transmittance. It is a decoration object as described in said (1) or (2) characterized by the above-mentioned.

  (5) The present invention is also characterized in that the masking layer includes a first masking portion having a first thickness and a second masking portion having a second thickness different from the first thickness. It is a decoration object given in the above (1) or (2).

  (6) The decorative body according to any one of (1) to (5), further including a decorative print layer on an upper surface of the masking layer.

  (7) The present invention is also the decorative body according to (5) above, wherein the decorative print layer contains a bright pigment.

  (8) The present invention also. The decorative body according to (6) or (7), wherein the decorative print layer and the masking layer are simultaneously hydraulically transferred.

  (9) The present invention also includes any one of the above (1) to (8), further comprising a color coat layer for preventing color fading or a top coat layer for protecting the surface. It is a decoration object given in the paragraph.

  (10) In the present invention, a polarizing coating is applied on a molding substrate to form an undercoat layer, and a masking layer that prevents the undercoat layer from being transparent on the upper surface side of the undercoat layer. Is a method for producing a decorative body.

  (11) The present invention is also the method for producing a decorative body according to (10), wherein a bright pigment is mixed into the polarizing paint before the undercoat layer is formed.

  (12) The decoration according to (10) or (11), wherein the masking layer includes an opaque layer that makes at least a part of the undercoat layer not transparent. It is a manufacturing method of a body.

  (13) The present invention is also the method for manufacturing a decorative body according to any one of (10) to (12), wherein a decorative print layer is formed on the masking layer. .

  (14) The invention is any one of the above (10) to (13), wherein a color coat layer for preventing color fading or a top coat layer for protecting the surface is further applied. It is a manufacturing method of the decoration object according to item 1.

  According to the decorative body and the manufacturing method thereof according to the present invention, while avoiding a decrease in production efficiency and a rise in cost, the color change is enriched more than before, and the three-dimensional feeling and texture of various patterns are delicately expressed. An excellent effect that it can be performed can be achieved.

  Hereinafter, a decorative body according to an embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1A is a schematic plan view of a decorative body 10 according to this embodiment, and FIG. 1B is a schematic side sectional view taken along line AA in FIG. It should be noted that the layers shown in FIG. 2B are drawn with exaggerated thicknesses for ease of understanding, and the thickness ratios between the layers are also different from the actual ones.

  <Overall configuration>

  The decorative body 10 according to the present embodiment includes an undercoat layer 14 applied on a molding substrate 12, a masking layer 16 and a decorative print layer 18 that are hydraulically printed on the undercoat layer 14, and the decorative print layer. 18 and the undercoat layer 14 and the like, and a top coat layer 22 that covers the entire surface of the color coat layer 20.

  <Molded substrate>

  The molding substrate 12 is made of a synthetic resin member such as acrylic, polycarbonate, ABS, or nylon, and is molded into a shape such as an automobile interior part (for example, an instrument panel or a door panel). The “molding substrate” according to the present invention is not limited to a synthetic resin member, and other members such as a wooden member may be applied.

  <Undercoat layer>

  The undercoat layer 14 applied to the molding substrate 12 is composed of a polarizing paint produced by depositing a polarizing material on multiple layers of aluminum-based ultrafine particles of 3 to 12 μm. The “polarizing paint” according to the present invention means a paint whose color tone changes in response to a change in the viewpoint of the viewer who sees the decorative body 10, and is not limited to the polarizing paint exemplified in this embodiment. Absent. The thickness of the undercoat layer 14 is not particularly limited, but in order to express the three-dimensional effect of the pattern more strongly, the thickness is larger than the thickness of the masking layer 16 described later (for example, about several tens to several hundred times). Preferably there is. Furthermore, the “undercoat layer” according to the present invention is not limited to an undercoat layer made of only a polarizing paint, and may be, for example, an undercoat layer formed by mixing a glittering pigment with a polarizing paint. Good. Examples of the luster pigment include natural pigments produced by pulverizing the inner wall and pearls of shells, and synthetic pigments produced by baking titanium oxide or iron oxide in a thin film on mica fine particles (for example, pearl pigments, Gold pigments), metal powder pigments made of fine particles of metals such as copper, aluminum, brass, gold and silver.

  <Masking layer>

  The masking layer 16 is formed of a hydraulic transfer film that is hydraulically transferred to the undercoat layer 14. In this embodiment, the masking layer 16 is opaque so that the undercoat layer 14 cannot be seen through from the topcoat layer 22 side. It is as a layer. The masking layer 16 includes a first masking portion 16A having a first thickness t1 and a second thickness t2 (in this example, t1 <t2) different from the first thickness t1. A masking portion 16B is provided. This masking layer 16 can be formed by a known hydraulic transfer method. For example, a molding in which a transfer film is floated in a transfer tank filled with water and an undercoat layer 14 is applied on the transfer film. The substrate 12 is pressed and submerged in water, and a hydraulic transfer film (masking layer) is transferred to the undercoat layer 14 by water pressure. The masking layer 16 has a predetermined pattern (a wood grain pattern in this embodiment) depending on the presence / absence of the layer itself. In particular, the undercoat layer 14 laminated on the back side is partially exposed, and an integrated design is formed by the combination of the undercoat layer 14 and the masking layer 16. In particular, since the color of the undercoat layer 14 changes greatly depending on the viewing angle, for example, if the undercoat layer 14 is exposed as a node portion of a tree, a three-dimensional effect close to an actual wood grain pattern can be expressed. .

  The “masking layer” according to the present invention is not limited to a non-transparent layer that makes the undercoat layer invisible, but prevents the undercoat layer from being transparent. In other words, the transmittance is 0%. Most of the undercoat layer is not transparent, but a part of it can be seen through, or most of the undercoat layer is transparent through 100%, but a part of it is not transparent. Things are included. Moreover, you may form several site | parts from which the transmittance | permeability differs as a masking layer, for example, a masking layer is the 1st masking part which has 1st transmittance | permeability (for example, transmittance | permeability 20%), and 1st You may comprise with the 2nd masking part which has the 2nd transmittance | permeability (for example, 70%) different from the transmittance | permeability of. With such a configuration, a change in color tone can be made more complicated due to a difference in transmittance, and it is possible to express an unprecedented three-dimensional effect, texture, and the like. Moreover, it is good also as a gradation pattern which changed the transmittance | permeability of the masking layer in steps between 0%-100%. In addition, it is also preferable to form a gradation pattern by making the masking layer itself a halftone dot (dot shape) by the density of the halftone dots.

  <Decorative printing layer>

  The decorative print layer 18 is previously laminated on the masking layer 16 of the transfer film, and is hydraulically transferred to the molding substrate 12 simultaneously with the masking layer 16. The decorative print layer 18 contains a luster pigment (a natural pigment having a color such as pearl or gold, a synthetic pigment, or a metal powder pigment), and has a predetermined pattern (wood grain pattern in this embodiment). Have. Note that the transmittance of the decorative print layer 18 does not need to be uniform in the entire region, and may be a gradation pattern in which the transmittance in the region is changed between 0% and 100%.

  <Color coat layer>

  The color coat layer 20 is made of a colorless and transparent (or colored and transparent) paint applied so as to cover the decorative print layer 18 and the undercoat layer 14, and is for preventing color fading of the decorative body 10.

  <Topcoat layer>

  The topcoat layer 22 is made of a colorless and transparent (or colored and transparent) paint applied to the color coat layer 20, and is for protecting the surface of the decorative body 10 from scratches and the like.

  <Method for producing decorative body>

  Next, the manufacturing method of the decorative body 10 is demonstrated using FIG. FIG. 2 is a diagram schematically showing the manufacturing process of the decorative body 10.

  First, the undercoat layer 14 is formed by applying a polarizing paint to the molding substrate 12 molded into a shape such as an interior part for an automobile. Next, a masking layer (impermeable layer) 16 (16A, 16B) that renders a portion of the undercoat layer 14 non-transparent to the undercoat layer 14 and a decorative print layer 18 containing a glittering material are applied to a known hydraulic pressure. Simultaneously hydraulic transfer by transfer method. The integrated masking layer 16 and decorative print layer 18 and the partially exposed undercoat layer 14 are visually integrated to form a predetermined pattern (wood pattern in this embodiment). Finally, the color coat layer 20 is formed so as to cover the decorative print layer 18 and the undercoat layer 14, and the top coat layer 22 is formed on the color coat layer 20 to complete the decorative body 10.

  As described above, the decorative body 10 according to the present embodiment is hydraulically transferred to the undercoat layer 14 made of a polarizing paint applied on the molding substrate 12 and the undercoat layer 14. It is a decorative body characterized by having a masking layer 16 that prevents at least a part of see-through.

  According to the decorative body 10 according to the present embodiment, while avoiding a decrease in production efficiency and a rise in cost, the change in color tone is richer than before, and the three-dimensional feeling and texture of various patterns are expressed delicately. Can do. For example, taking a wood grain pattern as an example, the reflectance of the surface of a natural tree partially changes depending on the density of the fiber of the wood, and the reflectance differs greatly between the node portion of the tree and other portions. Therefore, a natural tree has a characteristic that the luminance and color largely change depending on the viewing angle.

  Therefore, in the decorative body 10, by creating a portion where the undercoat layer 14 having polarization characteristics can be seen through and a portion where the undercoat layer 14 cannot be seen through, a dense fiber portion and a rough portion in the wood are produced. Can be expressed in a pseudo manner. In particular, in the case of polarizing paint, the color tone can be changed greatly when the observer's viewpoint moves. It can be demonstrated. For this reason, in actual wood, the hue, depth, shine, etc. slightly change in response to changes in the viewer's viewpoint. Such subtle three-dimensionality, texture, etc. It can be expressed faithfully by partially exposing (see-through). In addition, although the wood grain pattern was given as an example, other patterns such as a stone pattern, a grain pattern, and a carbon tone pattern can also be applied. For these other patterns, color tone, depth, and shine Can be expressed more faithfully than before. In addition, by applying a polarizing paint on the molding substrate, the degree of change in color tone can be increased as compared with the case where a pattern is transferred and printed as in the prior art.

  Further, if the polarizing paint of the undercoat layer 14 contains a glitter pigment, the three-dimensional effect and texture of the pattern can be further enhanced.

  Further, if the masking layer 16 is a non-transparent layer that makes at least a part of the undercoat layer 16 non-transparent, the effect is as if a part of the molded substrate was polarized with the transparent part. Can be obtained. That is, by using the undercoat layer 16, the design of the masking layer 16 and the decorative print layer 18 can be drawn more delicately.

  The three-dimensional feel and texture of the pattern can be enhanced than before.

  Further, the masking layer 16 may be configured to include a first masking portion 16A having a first thickness t1 and a second masking portion 16B having a second thickness t2 different from the first thickness t1. The color tone can be changed according to the difference in thickness, and by changing the thickness, it is possible to faithfully express a subtle three-dimensional effect, texture, and the like.

  Further, if it is configured to further include a decorative print layer 18 that is hydraulically transferred simultaneously with the masking layer 16, the polarization characteristics (change in hue) due to the coating of the undercoat layer 14 and the transfer printing of the decorative print layer 18 are achieved. A more complicated pattern can be expressed by the difference in the characteristic of deflection (change in shine).

  If the decorative print layer 18 contains a bright pigment, the three-dimensional effect and texture of the pattern can be further enhanced.

  Further, if it is configured to further have a color coat layer 20 for preventing color fading or a top coat layer 22 for protecting the surface, it is possible to suppress changes over time such as color fading and scratches, The quality of the body can be maintained over the long term.

  Note that the decorative body and the method for manufacturing the same according to the present invention are not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the scope of the present invention.

  For example, in the above-described embodiment, an example in which the masking layer is laminated on the undercoat layer has been described. However, the present invention is not limited to this, for example, a transparent clear layer between the undercoat layer and the masking layer. In some cases, the three-dimensional effect and texture of the pattern can be expressed more strongly.

  Further, the shape and size of the masking layer are not limited to the shape and size shown in the above embodiment.

  In the above embodiment, the decorative print layer is hydraulically transferred simultaneously with the masking layer. However, when the pattern can be sufficiently expressed by the undercoat layer and the masking layer, the decorative print layer may not be formed.

  Further, the color coat layer and the top coat layer may be appropriately formed as necessary, and either one or both may not be formed.

  The decorative body and the manufacturing method thereof according to the present invention can be applied, for example, when a pattern such as a wood grain pattern or a marble pattern is applied to an interior part of an automobile.

(A) It is a schematic front view of the decorative body according to the present embodiment. (B) It is the rough side cross section along the AA line in the figure (a). It is the figure which showed typically the manufacture process of the decoration body which concerns on this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Decorative body 12 Molding base material 14 Undercoat layer 16 Masking layer 18 Decorative print layer 20 Color coat layer 22 Clear coat layer

Claims (14)

An undercoat layer made of a polarizing paint applied on a molding substrate;
It is configured to have a masking layer that is hydraulically transferred to the upper surface side than the undercoat layer and prevents at least a part of the undercoat layer from being seen through,
Decorative body. The polarizing paint contains a luster pigment,
The decorative body according to claim 1. The masking layer is an impermeable layer that renders at least a part of the undercoat layer invisible,
The decorative body according to claim 1 or 2. The masking layer includes a first masking portion having a first transmittance and a second masking portion having a second transmittance different from the first transmittance.
The decorative body according to claim 1 or 2. The masking layer has a first masking portion having a first thickness and a second masking portion having a second thickness different from the first thickness,
The decorative body according to claim 1 or 2. It further has a decorative printing layer on the upper surface of the masking layer,
The decorative body according to any one of claims 1 to 5. The decorative print layer contains a glitter pigment,
The decorative body according to claim 6. The decorative printing layer and the masking layer are simultaneously hydraulically transferred,
The decorative body according to claim 6 or 7. It further has a color coat layer for preventing color fading or a top coat layer for protecting the surface,
The decorative body according to any one of claims 1 to 8. On the molding substrate, a polarizing paint is applied to form an undercoat layer,
It is characterized by hydraulically transferring a masking layer that prevents see-through of at least a part of the undercoat layer on the upper surface side than the undercoat layer.
A method for manufacturing a decorative body. Before forming the undercoat layer, it is characterized by mixing a bright pigment in the polarizing paint,
The method for manufacturing a decorative body according to claim 10. As the masking layer, it is characterized by forming an impermeable layer that renders at least a part of the undercoat layer transparent.
The method for manufacturing a decorative body according to claim 10 or 11. A decorative print layer is formed on the masking layer,
The manufacturing method of the decoration body of any one of Claims 10-12. A color coat layer for preventing color fading or a top coat layer for protecting the surface is further applied,
The manufacturing method of the decoration body of any one of Claims 11-13.