JP2022156824A - Decorative member - Google Patents

Abstract

To provide a decorative member in which a pattern diversely changes visually in a simple configuration.SOLUTION: A decorative member includes a decorative layer in which at least a pattern layer, and a light transmission control layer composed of at least one light transmission control cell part comprising louver structure in which a light transmission band and a glare protection band are disposed alternately in a face direction are laminated in this order on a surface of a base material. In the decorative member, the light transmission control layer is disposed so as to overlap with at least one portion of the pattern layer, at least one of the light transmission control cell parts has a region having different louver structure, and at least one of width, height, an interval, and an angle preferably differs in the region having different lover structure.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a decorative member having a decorative layer whose design changes according to an observation angle, and a manufacturing method thereof.

Conventionally, as a decoration technology in which the pattern changes according to the viewing angle (hereinafter referred to as "observation angle"), a printing technology (also called lenticular printing) consisting of a structure in which lenticular lenses are laminated on the pattern has been put into practical use. For example, in Patent Document 1, a light-transmissive sheet having a curved first sheet surface, a lens portion, and an image forming portion are provided, and the lens portion is provided curved along the curved surface of the first sheet surface. A decorative member has been proposed in which a design changes depending on an observation angle by providing a plurality of lenses with ridges arranged in parallel. Decoration technology using this lenticular lens is widely used for postcards, stationery, toys such as stickers, and advertising POP. There is an increasing need for more diverse pattern changes.

However, in the decoration technique using a lenticular lens as in Patent Document 1, it is necessary to accurately match the pitch of the printed matter that is the pattern with the optical pitch of the lenticular lens, and the pattern changes according to the observation angle. In the case of increasing the number of elements to diversify the variable vision effect, more complicated design and higher assembly accuracy are required, which raises the issue of higher production costs. In addition, with lenticular lenses, if the regular arrangement of convex lenses is disrupted, the pattern cannot be recognized, and the decorative surface of the lenticular lens has a textured texture due to the uneven shape of the lens. In some cases, it is difficult to apply to the intended use, and the use has been limited. As a means for solving this problem, a decorating technique has been proposed in which a polarizing plate is used in place of the lenticular lens so that it is invisible when viewed from the front but is visible when viewed from an angle. Patent Document 2 discloses a circularly polarizing plate having a laminate of a linearly polarizing plate and a uniaxial retardation layer or a biaxial retardation layer, and a circularly polarizing plate for transmitting light in the vertical direction from the linearly polarizing plate side. A decorative film has been proposed that has a circularly polarized light reflecting layer that reflects circularly polarized light in the direction opposite to the direction of rotation.

Japanese Patent No. 6731051 Japanese Patent No. 6757424

However, the technique of decorating a structure using a polarizing plate as exemplified in Patent Document 2 is based on the principle of controlling the transmission path of transmitted light and reflected light, so that the pattern can be varied according to the viewing angle. In order to achieve this, it is necessary to stack multiple types of polarizing plates so that they are aligned in a predetermined polarizing direction. There is also room for improvement in terms of

SUMMARY OF THE INVENTION Accordingly, the present invention is intended to solve the above-described problems of the prior art, and its object is to provide a decorative member which has a simple structure and whose pattern changes in various ways according to the viewing angle, and a method for manufacturing the same. It is in.

In order to solve the above problems, the decorative member of the present invention has at least one pattern layer, a louver structure in which a light transmission band and a light shielding band are alternately arranged in the plane direction on the surface of a base material. A decorative member comprising a light transmission control layer composed of a transmission control cell portion and a decorative layer laminated in this order, wherein the light transmission control layer is arranged so as to overlap at least a part of the pattern layer. and at least one of the light transmission control cell portions has regions with different louver structures. Here, the planar direction is a direction substantially parallel to the surface of the pattern layer. Further, the form in which the light transmission control layer is arranged so as to overlap at least a part of the pattern layer is not limited to being in direct contact with the pattern layer, but also includes a form in which it is arranged without contact with the pattern layer.

The decorative member of the present invention comprises: a light transmission control layer composed of at least one light transmission control cell portion having a louver structure in which a light transmission layer and a light shielding layer are alternately arranged; and a light transmission control layer. By having a structure in which a pattern layer is laminated on at least one side of the base material side, the pattern layer is visible only through the light transmission band constituting the light transmission control cell part, and the viewing angle of the decorative layer is changed. As a result, the pattern of the decorative layer changes according to the viewing angle and is visually recognized due to the viewing angle control action in which the visibility of the pattern layer is hindered by the light shielding band that constitutes the light transmission control cell portion. Since the light transmission control cell section has regions with different louver structures, it is possible to partially change (non-linearly change) the viewing angle control action described above. A decorative member having a decorative layer with more diversified pattern changes can be obtained.

Further, in the decorative member of the present invention, it is preferable that at least one of the width, height, and angle of the light-shielding band is different in the regions having different louver structures. This makes it possible to further diversify the partial changes in the viewing angle control action in the light transmission control layer that constitutes the decorative layer, so that it is possible to further diversify the pattern changes of the decorative layer according to the viewing angle.

Further, in the decorative member of the present invention, it is also preferable that the regions having different louver structures are arranged such that at least one of the width, height, and angle of the light shielding band is gradually changed. As a result, the viewing angle control action of the light transmission control layer that constitutes the decorative layer can be changed in a gradational manner. can be obtained.

Further, in the decorative member of the present invention, the light transmission control layer includes a plurality of light transmission control cell portions, and at least one of the light transmission control cell portions is arranged apart from the other light control cell portions. is also preferred. As a result, the light transmission control cell portion can be arranged in a discontinuous manner at a desired position according to the structure of the pattern layer, so that the design can be changed in accordance with the pattern according to the viewing angle. It is possible to further increase the diversity of design changes of the decorative layer.

Further, in the decorative member of the present invention, it is also preferable that the pattern layer has a plurality of pattern regions, and that the light transmission control cell portion is arranged corresponding to at least one pattern region. As a result, it is possible to form a decorative layer in which the pattern changes in synchronism with the pattern according to the observation angle are more conspicuous.

The method for manufacturing a decorative member of the present invention includes at least a picture layer, and a light transmission control layer composed of at least one light transmission control cell section having a louver structure in which light transmission bands and light blocking bands are alternately arranged. a heat softening step of heating and softening a decorative film having a thermoplastic decorative layer laminated in this order; and simultaneously or after the deformation step, the decorative film stretched and deformed is laminated on the surface of the base material to form the light transmission control layer, and the louver structure of the light transmission control cell portion is partially different. and a lamination step of forming layers. According to this manufacturing method, even if all the louver structures of the light transmission control cell portions constituting the light transmission control layer of the decorative film before the heat softening process are the same, light can be easily transmitted by the heat softening process and the deformation process. Since regions with different louver structures can be formed in the control cell part, manufacturing of decorative members equipped with decorative layers in which patterns change in a variety of ways with the action of partially changing the viewing angle control action according to the observation angle. can do. Further, when the light transmission control layer of the decorative film before the heat softening process is a decorative film composed of light transmission control cell portions having regions with different louver structures, the heat softening process and the deformation process can Since the areas with different louver structures are further changed, it is also possible to obtain a decorative member having a decorative layer with more diversified pattern changes depending on the viewing angle.

In the decorative member of the present invention, a light transmission control layer having a viewing angle control action, which is composed of one or more light transmission control cell portions having a louver structure, is laminated on a pattern layer, and at least one light transmission control cell is laminated. Since the part has a decorative layer with a structure having regions with different louver structures, it is possible to diversify pattern changes accompanied by the action of partially changing the viewing angle control action according to the observation angle. It is possible to provide a decorative member whose design changes uniquely and diversely. Further, in the method for manufacturing a decorative member of the present invention, a light transmission control layer having a viewing angle control action, which is composed of one or more light transmission control cell portions having a louver structure, is laminated on the pattern layer, and at least one The two light transmission control cell parts heat-soften a decorative film having a decorative layer with a structure having regions with different louver structures in a heat-softening process. Since it is a method in which a decorative layer having a partially different structure is used and the decorative layer is laminated on the surface of the base material in the lamination process, the light transmission control cell part constituting the light transmission control layer of the decorative film Since regions with different louver structures can be easily formed in the light transmission control cell section regardless of the presence or absence of regions with different louver structures, the pattern can be displayed with the action of partially changing the viewing angle control action according to the viewing angle. It is possible to manufacture a decorative member having a decorative layer that varies in many ways.

FIG. 2 is a schematic cross-sectional view for explaining a structural example of the decorative member according to the first embodiment of the present invention; FIG. 3 is a schematic cross-sectional view for explaining an example of a louver structure of a light transmission control cell portion that constitutes a light transmission control layer of the decorative member of the present invention. FIG. 11 is a schematic cross-sectional view for explaining a structural example in which the light transmission control cell part constituting the light transmission control layer of the decorative member according to the first embodiment of the present invention has regions with different louver structures; be. Schematic for explaining a structural example in which the louver structure of a partial region of the light transmission control cell portion constituting the light transmission control layer of the decorative member according to the first embodiment of the present invention is gradually changed. It is a cross-sectional view. FIG. 4 is a schematic cross-sectional view for explaining a structural example in which the light transmission control layer constituting the decorative member of the present invention is composed of a plurality of regions with different louver structures. FIG. 5 is a schematic cross-sectional view for explaining a structural example of a decorative member according to a second embodiment of the present invention; FIG. 11 is a schematic cross-sectional view for explaining a structural example in which a plurality of light transmission control cell portions constituting a light transmission control layer are arranged apart from each other in the decorative member according to the second embodiment of the present invention; be. FIG. 4 is a schematic cross-sectional view for explaining a structural example in which the pattern layer of the decorative layer that constitutes the decorative member of the present invention is composed of a plurality of pattern regions; FIG. 4 is a schematic cross-sectional view for explaining a structural example in which the decorative layer that constitutes the decorative member of the present invention has a second pattern layer.

The decorative member of the present invention comprises at least a pattern layer and at least one light transmission control cell portion having a louver structure in which light transmission bands and light blocking bands are alternately arranged in the plane direction on the surface of a base material. and a light transmission control layer laminated in this order, wherein the light transmission control layer is arranged so as to overlap at least a part of the pattern layer, and a light transmission control cell portion has regions with different louver structures. A specific example will be described below with reference to the drawings.

(First embodiment)
The decorative member according to the first embodiment of the present invention comprises a decorative layer 3 in which a pattern layer 4 and a light transmission control layer 5 are laminated in this order on the surface of a substrate 2, as shown in FIG. . The light transmission control layer 5 is composed of one light transmission control cell portion 5P having a louver structure in which light transmission bands 5A and light shielding bands 5B are alternately arranged, and the region is located between two regions 5a having the same louver structure. It has a region 5b with a different louver structure from 5a. In FIG. 1, the louver structure region 5b is a structural example in which the distance between the light shielding layers 5B is narrower than that of the louver structure region 5a. In addition, in the following description, the area of the louver structure is also simply referred to as "area".

(Base material)
The base material 2 that constitutes the decorative member 1 according to this embodiment is a base material formed by molding a known material such as resin, metal, ceramic, or natural material. The resin is not particularly limited, and known resin materials used for decorative members can be applied. Examples include acrylonitrile-butadiene-styrene copolymer (ABS resin), polyethylene resin, polypropylene resin, polystyrene resin, polyethylene terephthalate resin, polyvinyl alcohol resin, polyvinyl chloride resin, polyamide resin, polyacetal resin, polycarbonate resin, ionomer resin, acrylic resin, and the like. In particular, in applications where rigidity, workability and impact resistance are required, it is preferable to contain an acrylonitrile-butadiene-styrene copolymer. Examples of metals include iron, copper, aluminum, stainless steel, and alloys thereof. The shape of the substrate is not particularly limited, and the surface on which the decorative layer is laminated may be flat or curved. As a means for molding the base material 2, known molding methods such as injection molding and heat press can be applied. Further, known surface treatments such as corona treatment, excimer treatment, and Itro treatment may be applied to improve adhesion of the decorative layer.

(picture layer)
The pattern layer 4 that constitutes the decorative layer 3 of the decorative member 1 according to this embodiment is arranged on the base material 2 side of the light transmission control layer 5 and is visually recognized through the light transmission control layer 5 . The picture layer 4 is formed of a picture pattern formed using printing ink used for conventional decoration, or a pattern made of printing ink, a thin film of a metal or an inorganic substance, or the like, alone or in combination. A picture pattern using printing ink can be formed by a known printing method such as gravure printing, offset printing, silk screen printing, transfer printing using a transfer sheet, sublimation transfer printing, ink jet printing, and the like. Known inks such as nitrocellulose resins, urethane resins, and acrylic resins can be used as printing inks. Also, the metal thin film can be formed by a known method such as a vacuum deposition method, a sputtering method, a plasma CVD (Chemical Vapor Deposition) method, or the like. The metal species can be selected according to the formation method and appearance, such as aluminum and indium. A hologram effect may be imparted to the metal thin film by imparting fine unevenness to it by means of an embossing roll or application of a transparent resin. Any pattern can be used as the pattern of the pattern layer 4. For example, a wood grain pattern, a stone pattern, a texture pattern, an abstract pattern, a geometric pattern, or the like can be used alone or in combination of two or more. The pattern layer 4 also includes a colored plain transparent or opaque structure having no pattern.

(Light transmission control layer)
In the decorative member 1 according to this embodiment, the light transmission control layer 5 constituting the decorative layer 3 has a louver structure in which light transmission bands 5A and light shielding bands 5B are alternately arranged as shown in FIG. The light transmission control cell portion 5P is configured singly or in combination, and the light transmission control layer 5 constituting the decorative layer 3 of the decorative member 1 illustrated in FIG. Thus, the region 5b of the light transmission control cell portion 5P has a different louver structure from the region a. When light is incident on the light transmission control layer 5, the light is transmitted in the thickness direction only through the light transmission band of the light transmission control cell portion 5P. Since the light is blocked, the light transmittance of the light transmission control layer 5 changes depending on the viewing angle. When the pattern layer 4 is observed through the light transmission control layer 5 while the viewing angle control action is performed in which the light transmittance of the light transmission control layer 5 changes according to the incident angle of light, the pattern changes according to the observation angle. The visibility of the layer 4 changes, and it is visually recognized as a design change of the decorative layer 3 .

The louver structure of the light transmission control cell section 5P is, for example, a sheet obtained by alternately stacking a plurality of light transmission sheets as the light transmission band 5A and light shielding sheets as the light shielding band 5B and laminating them to an arbitrary width in the stacking direction. It can be sliced by 2 to form the light transmission control cell portion 5P and the light transmission control layer 5 can be obtained. Further, the light transmission control cell portion 5P may be formed using an imprint technique. The material for the light-shielding band 5A is poured into the concave-convex transparent sheet obtained by pouring and solidifying the material for the transmission band 5A and peeled off, or the material for the light-shielding band 5B is applied to the concave portion of the concave-convex transparent sheet obtained by pressing a mold against the sheet made of the material for the light-transmitting band to transfer the concave-convex pattern. A louver structure may be formed by pouring and solidifying.

As a material for forming the light transmission band 5A, a highly transparent resin is used. A thermoplastic resin or a thermosetting resin can be applied as appropriate. The material forming the light shielding band 5B is a colored resin composition obtained by adding a coloring agent such as a pigment to a resin. Appropriately set. The color tone of the light-shielding band is not particularly limited as long as a preferable light-shielding property can be obtained, and a desired color tone such as black, blue, red, or yellow can be used. As the colorant, for example, known inorganic or organic pigments such as carbon black, iron oxide, titanium oxide and phthalocyanine blue can be applied.

A region 5b having a different louver structure in the light transmission control cell portion 5P constituting the light transmission control layer 5 has, for example, a partial thickness of the light transmission band 5A and the light shielding band 5B, as shown in FIG. 3(b), a structure in which the width of the light shielding band 5B is changed, as shown in FIG. 3(c), a structure in which the angle of the light shielding band 5B is changed, and FIG. A structure in which the interval of the light shielding band 5B is changed as in (d) can be used alone or in combination.

As another configuration of the region 5b having a different louver structure in the light transmission control cell portion 5P constituting the light transmission control layer 5, the configuration and arrangement of the light shielding band 5B may be gradually changed. A structure in which the width of the light shielding band 5B gradually changes, such as the region 5b' of the louver structure of the light transmission control cell portion 5P shown in FIG. A structure in which the width of the light transmission band 5A is gradually changed like the region 5b' of the light transmission control cell part 5P, and an angle of the light shielding band 5B is changed like the region 5b' of the light transmission control cell part 5P shown in FIG. 4(c). The purpose is to provide a gradually changing structure, a structure in which the heights of the light transmission band 5A and the light shielding band 5B are gradually changed like the region 5b' of the light transmission control cell portion 5P shown in FIG. 4(d). can be applied alone or in combination depending on As a result, it is possible to obtain a decorative member provided with a decorative layer in which the pattern layer 4 changes in gradation and is visually recognized according to the viewing angle.

Further, the light transmission control cell portion 5P constituting the light transmission control layer 5 may be continuously composed of a plurality of regions having different louver structures. For example, the light transmission control cell portion 5P shown in FIG. This is an example composed of three different regions 5a, 5b, and 5c. By combining a plurality of areas with different louver structures, it is possible to design a wide variety of decorative layers that change patterns depending on the viewing angle.

(Second embodiment)
A decorative member according to a second embodiment of the present invention includes a plurality of light transmitting members having a louver structure in which at least a pattern layer and light transmitting bands and light blocking bands are alternately arranged in the plane direction on the surface of a base material. A light transmission control layer comprising a control cell portion is a decorative member provided with decorative layers laminated in this order, and at least one of the light transmission control cell portions has a region with a different louver structure. there is A specific description will be given below with reference to FIG.

The decorative member 10 shown in FIG. 6( a ) includes a decorative layer 30 in which a pattern layer 4 and a light transmission control layer 50 are laminated in this order on the surface of a base material 2 . The control layer 50 has three light transmission control cell portions 50a, 50b, and 50a, each having a louver structure in which light transmission bands 5A and light shielding bands 5B are alternately arranged in the plane direction. The light transmission control cell portions 50a and 50b are arranged adjacent to each other in a row, and the entire light transmission control cell portion 50b has a region having a different louver structure from that of the light transmission control cell portions 50a. has a different louver structure. In the example of FIG. 6A, the light transmission control cell portion 50b has a louver structure in which the interval between the light shielding bands 5B is narrower than that of the light transmission control cell portion 50a. The decorative member 10 shown in FIG. 6(b) has a light transmission control layer 50 having a louver structure in which the light transmission bands 5A and the light shielding bands 5B are alternately arranged in the plane direction. 50a, light transmission control cell section 50b, and light transmission control cell section 50c are arranged adjacent to each other in this order, and the three light transmission control cell sections 50a, 50b, and 50c each have a different louver structure, The light transmission control cell portion 50b has a louver structure in which the distance between the light shielding bands 5B is narrower than that of the light transmission control cell portion 50a, and the light transmission control cell portion 50c has a louver structure in which the light shielding bands 5B are inclined. The decorative member 10 shown in FIGS. 6(a) and 6(b) is composed of a light transmission control layer 50 composed of a plurality of light transmission control cell portions, and a part of the light transmission control cell portions has a louver structure. By using different structures, it is possible to freely design the partial change behavior of the viewing angle control action according to the layout design of the light transmission control cell section, so that the picture pattern of the decorative layer 30 changes according to the viewing angle. A more diversified decorative member is obtained. In addition, in the decorative member 10 illustrated in FIGS. 6A and 6B, the entire light transmission control cell portion 50b has a region having a different louver structure from that of the light transmission control cell portion 50a. A region having a different louver structure may be provided in a part of the light transmission control cell portion 50b.

Further, the light transmission control cell portion 5P may be configured such that at least part of the boundary with other light transmission control cell portions is non-contact with each other. For example, the decorative member 11 shown in FIG. Reference numeral 51 denotes an array of light transmission control cell portions 51a, 51b, and 51a having a louver structure in which light transmission bands 5A and light shielding bands 5B are alternately arranged in the plane direction. are spaced apart from each other, and the light transmission control cell portion 51a and the light transmission control cell portion 51b have different louver structures. In the example of FIG. 7, the light transmission control cell portion 51b has a louver structure in which the interval between the light shielding bands 5B is narrower than that of the light transmission control cell portion 51a. With these configurations, the light transmission control cell portion 51P can be arranged at a desired position of the pattern element of the pattern layer 4, so that the design change in synchronization with the pattern can be imparted according to the viewing angle, and design freedom of the design change can be achieved. can be increased.

Descriptions of the base material 2, the pattern layer 4, and the louver structure according to the present embodiment are the same as those of the first embodiment, and are therefore omitted.

Moreover, in the decorative members according to the first and second embodiments of the present invention, the pattern layer 4 may be composed of a plurality of pattern regions. The pattern areas are different from each other in at least one of the pattern and the shape of the area, and the pattern of the pattern layer 4 is formed by the arrangement pattern of the pattern areas. The arrangement of the pattern areas is not limited to an arrangement in which the pattern areas are adjacent to each other, but may be an arrangement in which the pattern areas are separated from each other. Then, by arranging and laminating the light transmission control cell portions constituting the light transmission control layer 5 (50) corresponding to each pattern region, the design of the decorative layer is synchronized with the pattern region according to the observation angle. The changing effects can be more diverse. For example, in the decorative member 12 shown in FIG. 8A, in the first embodiment, the pattern layer 40 is composed of three pattern regions 40a, 40b, and 40c having different patterns and shapes, and the pattern regions 40a, 40b, and 40c The three louver structure regions 5a, 5b and 5c of the light transmission control cell portion 5P constituting the light transmission control layer 5 are respectively arranged and stacked in correspondence with the louver structure regions 5a, 5b and 5c. different. In FIG. 8A, the louver structure of the louver structure region 5b has a narrower interval between the light shielding bands 5B than that of the louver structure region 5a, and the louver structure of the louver structure region 5c has a structure in which the light shielding bands 5B are inclined. In the second embodiment, the decorative member 12 shown in FIG. 8B is composed of three pattern regions 40a, 40b, and 40c in which the pattern layer 40 has different pattern configurations and shapes. Three light transmission control cell portions 50a, 50b, and 50c constituting the light transmission control layer 50 are arranged and laminated corresponding to 40a, 40b, and 40c. Structure is different. In FIG. 8B, in the louver structure of the light transmission control cell portion 50b, the interval between the light shielding bands 5B is narrower than in the light transmission control cell portion 50a, and in the louver structure of the light transmission control cell portion 50c, the light shielding bands 5B are inclined. Structure. In the decorative member 14 shown in FIG. 8(c), the pattern layer 41 has three pattern regions 41a, 41b, and 41c that are different from each other in pattern configuration and shape. The three light transmission control cell portions 51a, 51b, and 51c constituting the light transmission control layer 51 are respectively arranged and laminated correspondingly to each other, and the light transmission control cell portions 51a, 51b, and 51c have different louver structures. . In FIG. 8C, in the louver structure of the light transmission control cell portion 51b, the interval between the light shielding bands 5B is narrower than in the light transmission control cell portion 51a, and in the louver structure of the light transmission control cell portion 51c, the light shielding bands 5B are inclined. Structure. Further, the combination of arrangement of the pattern region forming the pattern layer 4 and the light transmission control cell portion forming the light transmission control layer is similar to the structural examples shown in FIGS. 8B and 8C. In addition to the structure in which the light transmission control cell portions are combined in pairs, four pattern regions 42a, 42b, 42c, and 43d having different patterns and shapes are used, as in the decorative member 15 shown in FIG. 8(d). In the structure in which the three light transmission control cell portions 52a, 52b, and 52c constituting the light transmission control layer 52 are arranged and laminated on the pattern layer 42 having the structure in which the pattern region 42b and the pattern region 42c are spaced apart. , a structure that is arranged and laminated in a part of the pattern region 42c like the light transmission control cell part 52b, and a structure that is arranged and laminated so as to overlap both the pattern regions 42c and 42d like the light transmission control cell part 52c. Alternatively, a structure having a portion where the light transmission control cell portion is not arranged, such as the pattern region 42b, may be provided.

In addition, in the decorative members according to the first and second embodiments of the present invention, a second pattern layer may be provided on the surface of the light transmission control layer opposite to the pattern layer. As a result, the effect of changing the pattern according to the viewing angle is combined with the second pattern layer, thereby further diversifying the design change. At least a part of the second pattern layer 6 allows the pattern layer 4 to be visually recognized through the light transmission control layer 5 (50). It is possible to apply a color clear pattern having The pattern of the second pattern layer 6 may be the same as that of the pattern layer 4, or may be different. The components and formation method of the second picture layer 6 are the same as those of the decorative layer 4 . Also, the second pattern layer 6 may be formed on a part of the surface of the light transmission control layer 5 (50). As a specific example of the decorative member having the second pattern layer 6, the decorative member 16 shown in FIG. 9A is based on the structure of the decorative member 1 of the first embodiment shown in FIG. A structure example in which a decoration layer 36 in which a second pattern layer 6 is laminated on the light transmission control layer 5 side of the decoration layer 3 composed of the pattern layer 4 and the light transmission control layer 5 is provided on the surface of the base material 2. is. A decorative member 17 shown in FIG. 9B is based on the structure of the decorative member 10 of the second embodiment shown in FIG. This is a structural example in which the surface of the base material 2 is provided with a decorative layer 37 in which the second pattern layer 6 is laminated on the light transmission control layer 50 side surface of the base material 2 .

In addition, in the decorative members according to the first and second embodiments of the present invention, when the substrate 2 is a light-transmissive substrate, the pattern layer constituting the decorative layer 3 (30) 4 may be arranged on the back surface of the base material 2 (the surface opposite to the side on which the light transmission control layer 5 (50) is arranged). In addition, although the decorative layer constituting the decorative member exemplified in FIGS. A structure in which the light transmission control layer is arranged without contact with the pattern layer may be employed, such as when a transparent adhesive layer is interposed between the layers.

(Manufacturing method of decorative member)
A specific embodiment of the method for manufacturing a decorative member of the present invention will be described by taking the decorative member 1 according to the first embodiment shown in FIG. 1 as an example. The decorative member 1 is manufactured by laminating a decorative layer 3 composed of a pattern layer 4 and a light transmission control layer 5 on a substrate 2 by a known method. As a method of laminating the decorative layer 3 on the base material 2, for example, a method of individually laminating the pattern layer 4 and a sheet-like light transmission control layer 5 on the surface of the base material 2, or a method of laminating the pattern layer 4 and the light transmission control layer 5 separately in order. A method of laminating a decorative film formed by laminating the control layer 5 on the substrate 2 may be used. The decorative film in which the pattern layer 4 and the light transmission control layer 5 are laminated is obtained by forming the pattern layer 4 on the surface of the sheet-like light transmission control layer 5 by a known printing method such as inkjet or gravure printing. . In the case of laminating the above decorative film on the base material 2, or in the case of laminating the sheet-like light transmission control layer 5 on the printing layer 4 preliminarily formed on the base material 2, as a specific means, a roll A method of pressing and pasting by pressing, vacuum compression molding, in-mold molding, and the like can be applied. Moreover, in order to ensure the adhesion of each lamination interface between the base material 2, the pattern layer 4, and the light transmission control layer 5, it is preferable to form an adhesive layer on at least one of the lamination interfaces before lamination. In addition, as in the decorative member 16 exemplified in FIG. After the pattern layer 4 and the light transmission control layer 5 are laminated, a second pattern layer may be formed on the surface of the light transmission control layer 5 by inkjet printing or various transfer methods. The decorative film, in which the control layer 5 and the second pattern layer 6 are laminated in this order, may be laminated on the surface of the substrate 2 by the lamination means exemplified above.

Further, as another embodiment of the method of manufacturing the decorative member 1 by laminating a decorative film in which the pattern layer 4 and the light transmission control layer 5 are laminated on the base material 2, the light transmission control layer 5 is heated. When a plastic decorative film is used, the light transmission control layer 5 is formed by a heat softening step of heating and softening the decorative film, and stretching and deforming at least a part of the softened decorative film in the plane direction. A deformation step of partially differentiating the louver structure of the light transmission control cell portion 5P to be constructed, and simultaneously with or after the deformation step, laminating an elongated and deformed decorative film on the surface of the substrate 2 to partially differ the louver structure. The decorative member 1 may be manufactured by a lamination step of forming the decorative layer 3 having the light transmission control layer 5 . In the deformation step, the means for partially changing the louver structure of the light transmission control cell portion 5P by stretching a part of the light transmission control layer 5 of the softened decorative film is not particularly limited. A method of stretching in the plane direction, a method of partially stretching the decorative film by pressing a presser against a portion to be stretched, and the like can be applied. In addition, when a curved surface portion or an uneven portion is formed on the surface of the decorating base material 2, the decorative film is softened by heat and then decorated along the curved surface portion or the uneven portion of the base material 2. The deformation step may be performed by attaching a film, pressing the decorative film against the curved surface portion or the uneven portion, and stretching the decorative film. According to this embodiment of the manufacturing method, even when the decorative film having the light transmission control layer 5 that does not have regions with different louver structures is used, the louver structure can be easily partially removed by the thermal softening process and the deformation process. It is possible to manufacture the decorative member 1 having the decorative layer 3 having the light transmission control layer 5 having a different optical property. In addition, when a decorative film having a light transmission control layer 5 with a partially different louver structure is used, the viewing angle control effect accompanied by the deformation of the louver structure imparted by the thermal change softening process and the deformation process, It is also possible to obtain a decorative member provided with a decorative layer in which pattern changes of the decorative layer are more diversified according to observation angles. Three-dimensional surface decoration molding typified by vacuum molding, TOM construction method and NGF construction method can be applied as effective processing methods for carrying out the embodiment of this manufacturing method. This embodiment is also effective when the sheet-like light transmission control layer 5 is laminated on the printing layer 4 preliminarily formed on the substrate 2 .

All of the above-described embodiments relating to the decorative member and the manufacturing method thereof are illustrative of the present invention and are not intended to be limiting, and the present invention can be implemented in various other variations and modifications. be able to. Accordingly, the scope of the present invention is defined only by the scope of the claims and their equivalents.

INDUSTRIAL APPLICABILITY The decorative member of the present invention has a simple structure and the design of the decorative layer visually changes in various ways according to the viewing angle.

Reference Signs List 1, 10 Decorative member 2 Base material 3, 30 Decorative layer 4, 40, 41, 42 Pattern layer 40a, 40b, 40c Pattern region of pattern layer 5, 50, 51, 52 Light transmission control layer 5a, 5b, 5b ', 5c louver structure region 5P, 50a, 50b, 50c light transmission control cell portion 5A light transmission zone 5B light shielding zone 6 second pattern layer

Claims (6)

At least a picture layer and a light transmission control layer composed of at least one light transmission control cell portion having a louver structure in which light transmission bands and light blocking bands are alternately arranged in a plane direction are provided on the surface of the base material. A decorative member having decorative layers laminated in this order,
The light transmission control layer is arranged so as to overlap at least a part of the pattern layer,
A decorative member, wherein at least one of the light transmission control cell portions has a region with a different louver structure. 2. The decorative member according to claim 1, wherein at least one of the width, height, interval, and angle of the light-shielding band is different in the regions having different louver structures. 3. The decorative member according to claim 2, wherein at least one of the width, height, interval and angle of the light shielding band is gradually changed in the regions with different louver structures. The light transmission control layer comprises a plurality of light transmission control cell portions, and at least one of the light transmission control cell portions is arranged apart from other light transmission control cell portions. Item 3. The decorative member according to item 3. 5. The pattern layer according to any one of claims 1 to 4, wherein the pattern layer has a plurality of pattern regions, and the light transmission control cell portion is arranged corresponding to at least one of the pattern regions. The decorative member described. At least a pattern layer and a light transmission control layer composed of at least one light transmission control cell portion having a louver structure in which light transmission bands and light shielding bands are alternately arranged on the surface of the substrate are arranged in this order. A method for manufacturing a decorative member having laminated thermoplastic decorative layers,
A thermal softening step of heating and softening the decorative film having the decorative layer, a deforming step of stretching and deforming at least a portion of the softened decorative film to partially change the louver structure, and deformation. A laminating step of forming a decorative layer having a partially different louver structure by laminating an elongated decorative film on the surface of the base material simultaneously or after the step. Production method.

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