WO2003008330A1 - Materiau multi-decoloration et procede d'observation correspondant - Google Patents

Materiau multi-decoloration et procede d'observation correspondant Download PDF

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Publication number
WO2003008330A1
WO2003008330A1 PCT/JP2002/007240 JP0207240W WO03008330A1 WO 2003008330 A1 WO2003008330 A1 WO 2003008330A1 JP 0207240 W JP0207240 W JP 0207240W WO 03008330 A1 WO03008330 A1 WO 03008330A1
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WO
WIPO (PCT)
Prior art keywords
light
layer
multicolor
selective transmission
transmission layer
Prior art date
Application number
PCT/JP2002/007240
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English (en)
Japanese (ja)
Inventor
Masayoshi Wada
Kenichi Sakuma
Tsuyoshi Miyamoto
Yukie Yoda
Asa Kimura
Original Assignee
Shiseido Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shiseido Co., Ltd. filed Critical Shiseido Co., Ltd.
Priority to JP2003513895A priority Critical patent/JPWO2003008330A1/ja
Publication of WO2003008330A1 publication Critical patent/WO2003008330A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B32B7/023—Optical properties

Definitions

  • the present invention relates to a discolored material exhibiting a different color tone depending on irradiated light and a method for observing the material, and particularly to an improvement in the composition of the material and a method for observing the material.
  • Japanese Patent Application Laid-Open No. 2000-81831 discloses a technique using a retroreflective material and a multicolored pearl pigment.
  • the retroreflective material is provided with an interfering substance layer that changes the color by causing interference with incident light using a multicolored pearlescent agent, and is used to control sunlight and illumination light. Under such normal light, light enters the retroreflective material from various directions, so that no interference color due to the interference substance layer is observed, and when light with a uniform traveling direction (referred to as linear light) is irradiated.
  • linear light uniform traveling direction
  • interference colors due to light interference were observed in the interference substance layer from almost the light incident direction.
  • Fig. 4 shows a schematic explanatory diagram of a conventional retroreflective material.
  • the retroreflectivity is given by the beads 104, and the focal length of the glass beads is adjusted by adjusting the layer thickness of the resin layer 106 to which the glass beads are fixed, and is described on the substrate 102.
  • the incident light 108 is fed back substantially in the direction of the incident light, and the return light 110 is obtained.
  • the color is changed by means such as providing an interference substance layer 112 that changes color by light interference between the substrate 102 and the resin layer 106.
  • the retroreflective material 100 is provided with a glass bead layer 104 or the like in order to provide retroreflectivity of light, and the diameter of the glass beads is very large compared to the particle size of the interfering substance. It was large and it was difficult to reduce the film thickness.
  • an interfering substance layer is provided on a substrate, and a resin layer is provided thereon while adjusting the focal length of the glass beads so as to maintain the focal length.
  • glass beads are provided on the resin layer. Are manufactured by spraying them so that they are in a single layer, and fixing them so that the adjusted focal length is not lost.Each process requires precise work, and the number of processes increases the cost. There was also a problem of doing so.
  • the present invention has been made in view of the above-mentioned problems of the prior art, and is capable of being formed into a thin film and relatively easily manufactured. It is an object to provide a material that can be recognized and to provide a method for observing the material.
  • the multicolor material according to the present invention has a multilayer structure in which two or more substances having different refractive indices are multiplexly laminated, and has a high transmittance of linear light incident from a substantially vertical direction, It is characterized by comprising: a selective transmission layer having a high scattering reflectance of ordinary light; and a colored pigment layer disposed below the selective transmission layer.
  • the selectively permeable layer preferably contains a pearl agent.
  • the selective transmission layer is a pearl agent layer comprising a hologram and / or optical diffraction recording material and a pearl agent formed below the hopper gram and / or optical diffraction recording material. It is preferable to include Further, in the multicolor-changeable material of the present invention, the pearl agent forming the selective transmission layer is made of a light-interfering powder, and the light-interfering powder is multiply laminated to form the selective transmission layer. Preferably, it is formed.
  • the pearl agent comprising the light coherent powder has a transmittance of light of 40% or more in a wavelength range of 420 nm to 700 nm, and It is preferable that the following relationship be satisfied when the luminance measured by applying the agent on black paper is represented by the hunter's Lab value.
  • a 0 and b 40 are the a and b values of the L ab value measured at the position of the acceptance angle of 4 °, a.
  • b are the L values measured at the position of the acceptance angle of 0 °.
  • the a value and the b value of the ab value shall be indicated.
  • the colored pigment layer may be any of a non-pigment, an organic dye, or a multicolor-changeable pigment that exhibits various colors when the incident direction of light is changed, or a plurality of these pigments and dyes Preferably, it consists of
  • the multicolor-changeable material of the present invention is adhered or integrally formed on a substrate or an article such as paper or film.
  • the observation method of the present invention has a multilayer structure in which two or more substances having different refractive indexes are multiplexed and stacked, and has a high transmittance of linear light incident from a substantially vertical direction, and a high scattering reflectance of ordinary light.
  • a multicolor material composed of a selective transmission layer, a colored pigment layer disposed below the selective transmission layer, and a linear light is irradiated with a linear light to change the color to a color tone different from that under normal light.
  • the linear light is irradiated from a substantially vertical direction of the multicolored material, and the multicolored material is observed in a substantially vertical direction.
  • FIG. 1 is a schematic cross-sectional view of one embodiment of the multicolor material according to the present invention.
  • FIG. 2 is a cross-sectional view of an embodiment of the multicolor material according to the present invention in which the configuration of the selective transmission layer is enlarged.
  • Fig. 3 shows the pearl agent used in the present invention and the light interference powder used in the pearl agent. It is explanatory drawing for demonstrating the measuring method of discoloration.
  • FIG. 4 is a schematic explanatory view of a conventional retroreflective material.
  • FIG. 1 shows a schematic cross-sectional view of one embodiment of the multicolor material according to the present invention.
  • the multicolor material 2 shown in the figure is adhered to the base 4 and has a multilayer structure in which two or more substances having different refractive indices are multiply laminated, and the transmittance of linear light incident from a substantially vertical direction is increased. It comprises a selective transmission layer 6 having a high scattering reflectance of ordinary light and a colored pigment layer 8 disposed below the selective transmission layer.
  • the selective transmission layer 6 transmits only light of relatively high intensity that is incident from the vertical direction of the multicolor material and from the vicinity thereof by multiplexing two or more substances having different refractive indexes. Light incident at an angle that deviates greatly from the vertical direction of the multicolor material acts to be reflected.
  • the selective transmission layer changes the color tone observed under normal light and the color tone observed under linear light.
  • the pigment material is observed, it is observed in a color tone different from that normally observed under light. Therefore, by adjusting the color to be changed in advance so that different patterns, patterns, characters, etc. can be observed, the design can be further enhanced, and only when irradiated with linear light. In order to display specific information, it can be used to prevent counterfeiting.
  • the selective transmission layer preferably contains a pearl agent that changes the color tone by light interference.
  • a transparent or translucent film capable of reproducing an image composed of a hologram and / or an optical diffraction recording material together with a pearl agent for the selective transmission layer.
  • a transparent layer is formed, the design of the multicolor material can be significantly improved.
  • Examples of such an image reproducing body are a rainbow hologram that can reproduce a stereoscopic image with white light, and a general aperture that can reproduce an image with laser light. Recording medium.
  • Ordinary light is light in sunlight or light environment by general lighting. Specifically, light of various wavelengths exists and the light travels in various directions. To say.
  • linear light refers to light in which light of various wavelengths exists but whose traveling directions are aligned.
  • Coherent light such as laser light can be said to be a special form of linear light. In this sense, laser light is also included as straight light.
  • the multicolor material in the present invention returns colored light having a color tone different from the color tone of the incident light.
  • a multicolored material is used, different color tones are observed under normal light and under linear light, so that it is possible to impart higher designability.
  • the pearl agent forming the selective transmission layer is made of light coherent powder, and the light coherent powder is Multiple layers Preferably, the selectively permeable layer is formed.
  • FIG. 2 is a cross-sectional view of an embodiment of the multicolor material according to the present invention in which the configuration of the selective transmission layer is enlarged to explain the structure of the selective transmission layer of the multicolor material according to the present invention.
  • components corresponding to the same components as those in FIG. 1 are denoted by the same reference numerals, and description thereof is omitted.
  • the multicolor material 2 according to the embodiment of the present invention shown in FIG. 1 is composed of a selectively permeable layer 6, a light interference powder coated on a mica serving as a mother nucleus in the order of titanium dioxide, silica, and titanium dioxide. And a pearl agent layer 10 in which the light coherent powder is multiply laminated is formed. A colored pigment layer 8 is provided below the pearl agent layer 10.
  • the incident light 14 When the incident light 14 enters the present embodiment having such a configuration, it passes through the hologram made of a transparent or translucent film and the Z or optical diffraction recording layer 12 and enters the pearl agent layer 10. The incident light is transmitted while being reflected at the boundary between each layer and the boundary between the powder and the powder due to the layered structure inside the powder of the pearl agent layer. Then, the transmitted light is reflected by the colored pigment layer 8, transmitted through the pearl agent layer 10 again while being reflected at the boundaries between the layers inside the powder and at the boundaries between the powders, and again transparent or semi-transparent. It is observed through the hologram made of a transparent film and the Z or optical diffraction recording layer 12.
  • the incident light 14 is ordinary light, since the traveling directions of the light are not the same, clear interference light in the pearl agent layer 10 is not recognized, and the incident light is reflected by the colored pigment layer 8 and becomes pearl again. As a result, the color of the powder of the pearl agent layer 10 and the color tone of the colored pigment layer 12 are observed as a mixed color.
  • the incident light 14 is linear light
  • the traveling directions of the light are the same.
  • the interference of the powder of the pearl agent layer 10 occurs, and the interference color is observed.
  • the appearance color of the powder of the pearl agent layer 10 the color tone emphasized by the interference, and the color pigment layer 8
  • the color tone will be observed as a mixed color tone.
  • the illuminance of the irradiated linear light be 40 Olux or more.
  • the powder used as a pearling agent has a spherical equivalent particle diameter of 1 ⁇ ! It is preferably from 100 to 100 ⁇ m, more preferably from 5 ⁇ m to 60 / im. If it is less than 1 ⁇ m, it becomes difficult to produce interference colors, If it exceeds 100 / m, the orientation of the powder will be reduced, and the reflectivity will be too low to obtain uniform interference in the plane of linear light.
  • the thickness of the pearl agent layer formed by using powder having such a particle size is 1 m to 50 ⁇ m, and more preferably 5 ⁇ m to 2 Q! ⁇ m is preferred. If it is less than 1 ⁇ m, it becomes difficult to observe the interference color of the pearl agent layer 1 ° with linear light, and if it exceeds 50 ⁇ m, it becomes difficult to observe the colored pigment layer 8 with ordinary light.
  • the transparency of the pearl agent forming the selective transmission layer 6 is such that when formed into a coating film, the transmittance of light in a wavelength range of 420 nm to 700 nm is improved. It is preferably from 40% to 90%. If it is less than 40%, it becomes difficult to observe the colored pigment layer 8 with ordinary light, and if it exceeds 90%, it becomes difficult to observe the interference color of the pearl agent layer 10 with linear light.
  • the peak wavelength of the interference Wataruiro is 5 5 0 nm ⁇ 6 0 0 nm (yellow), (a 2 + b 2 ) 1 2 in ⁇ 1 3, the peak wavelength of the interference color 6 00 nm ⁇ 7 0 0 nm (orange-red), it is preferable that a (a 2 + b 2) 1 2 ⁇ 2 0. If such a relationship can be satisfied, the interference of the pearl agent layer can be favorably observed when irradiating linear light.
  • the powder used in the pearl agent layer it is preferable to use a discolorable powder having high transparency and high brightness.
  • a discolorable powder having high transparency and high brightness.
  • lamellar compounds such as muscovite, biotite sericite, force-oliminite, talc, plate-like silica, plate-like titanium oxide, plate-like acid such as plate-like alumina, PET resin film, acrylic resin
  • scaly powders such as organic polymer foil such as a film as a mother nucleus.
  • the metal oxide to be coated examples include titanium dioxide, iron oxide, silicon oxide, aluminum oxide, cobalt oxide, lithium cobalt titanate, and the like.
  • the metal oxide is not particularly limited as long as it can be realized.
  • the coating of these metal oxides on the flaky powder can be carried out by heating or neutralizing and hydrolyzing the organic or inorganic salts of these metal oxides, or by vapor deposition such as CVD or PVD.
  • the material used in the colored pigment layer include polychromatic powder, inorganic colored powder, organic pigment, metal powder, fluorescent pigment, ink, paint, and a mixture thereof.
  • multicolor-changeable powders include layered compounds such as muscovite, biotite, sericite, olizonite, and talc, plate-like oxides such as plate-like silica, plate-like titanium oxide, and plate-like alumina, and PET resin. Films and powders in which the surface of the powder is coated with a metal oxide using scaly powder such as an organic polymer foil such as an acrylic resin film as a mother nucleus. It is not particularly limited to these.
  • Inorganic colored powders include iron pigments such as red iron oxide, yellow iron oxide and black iron oxide, titanium pigments such as titanium yellow, titanium oxide, and titanium cobalt green, cobanoleto blue, cobanoletanomiriphonore, kononoreto
  • iron pigments such as red iron oxide, yellow iron oxide and black iron oxide
  • titanium pigments such as titanium yellow, titanium oxide
  • titanium cobalt green cobanoleto blue
  • cobanoletanomiriphonore cobalt-based pigments
  • kononoreto inorganic colored powders having a svinenole type structure
  • inorganic colored powders having a svinenole type structure are exemplified, but the inorganic colored powders are not particularly limited as long as they are inorganic colored powders.
  • Organic dyes include organic dyes such as azo dyes, xanthene dyes, quinoline dyes, triphenylmethane dyes, anthraquinone dyes, and organic pigments such as permaton red, helindon pink CN, and phthalocyanine blue; And natural dyes such as calsamine and cochineal.
  • organic dyes are not particularly limited thereto.
  • Examples of the metal powder include aluminum, titanium, gold, silver, copper and the like, but are not particularly limited as long as they are colored metal powders.
  • fluorescent pigments, inks and paints can be used as long as they do not impair the discoloration exhibited by the selective transmission layer to the irradiated light. Yes, there is no particular limitation.
  • the multicolored material of the present invention can change the color presented by the selective transmission layer depending on the irradiated light, so that the design can be improved, and the selective transmission can be achieved only when linear light is irradiated.
  • Adhering to or integrating with a substrate or article, such as paper or film, because it is effective to distinguish counterfeit products and prevent counterfeit alteration by configuring so that specific information appears on the layer Preferably, it is formed.
  • the polychromatic powder as described above can change the color of the selective transmission layer and observe specific information such as characters, pictures, and patterns only when irradiated with linear light. It is preferable to irradiate and change the color to a color tone different from that under normal light for observation.
  • the selective transmission layer of the multicolor material of the present invention does not have retroreflective properties. Therefore, when the multicolor material of the present invention is irradiated with linear light, the linear light is reflected at the same reflection angle as the angle of incidence incident on the multicolor material.
  • the selective transmission layer reflects incident light as it deviates greatly from the vertical direction, even if it is linear light, the colored pigment layer cannot be observed once the critical angle is exceeded. Therefore, when observing the polychromatic material of the present invention, it is preferable to irradiate the linear light at an angle of 30 °, more preferably 20 ° or less, from the vertical axis of the multicolor material of the present invention. At this time, it is preferable that the observer also observes the multicolored material of the present invention at an angle of 30 ° or even 20 ° or less from the vertical axis of the multicolored material of the present invention.
  • characteristics of various pearling agents suitably used in the multicolor material of the present invention and the light-interfering powder used in the pearling agent were examined for the characteristics of discoloration and transmittance.
  • Hikari Senshin Powder and 15 parts by weight of -Tron Lacquer are uniformly dispersed and mixed to form a pearl agent, and a bar coater is applied to a transparent PET film (thickness ⁇ ⁇ ⁇ ). Each sample was coated at each thickness and dried at room temperature for 30 minutes to prepare a finolem to be measured.
  • this film was subjected to a goniospectrophotometer GCM S-3 Using a light source 30 (manufactured by Murakami Color Research Laboratory), the light source 30 is fixed so that the angle of incidence is 1 45 degrees from the vertical axis of the film 32 to be measured. The ab value was measured at position 36, which is the degree.
  • the thickness of the pearl coating applied to the transparent PET film was set at 0.025 mm, 0.050 mm, 0.101 mm, and 0.204 mm for the Perco overnight clearance.
  • the thickness of these dried coatings was about 4 xm, about 8 zm, about 16 / zm, and about 32 mm, respectively.
  • the pearl agent used in the present invention and the light interference powder used in the pearl agent, the Lab value measured in the gonio gloss measurement, the Lab value measured in the gonio gloss measurement,
  • the coating be performed so as to satisfy the following.
  • One part by weight of the light coherent powder and 15 parts by weight of NITRON lacquer are uniformly dispersed and mixed to form a pearl agent, which is then transferred to a transparent PET film (100 m thick) by Barco.
  • the film was coated at each thickness and dried at room temperature for 30 minutes to prepare a film to be measured.
  • the transmittance of this film was measured using a haze meter HR100 TM (manufactured by Murakami Color Research Laboratory).
  • the C light source JI SK7361 was used as the light source.
  • the light interference powder to be measured a powder having interference colors of yellow, red, green, blue and green was used.
  • the thickness of the pearl coating applied to the transparent PET film is as follows: Barco overnight clearance 0.025 mm, 0.05 Omm, 0.10 oo
  • the transmittance measured in the transmittance measurement is 40% or more, more preferably 50% ⁇ It is preferable that the coating be performed so as to satisfy ⁇ ⁇ 90%.
  • the pigment obtained has a strong green interference color.
  • Each part of the Ti 0 2 layer is as follows.
  • First layer about 170 nm
  • Second layer approx. 8511 m
  • the whole layer about 26011 m
  • the thickness of the 5 i O 2 interlayer is about 5 nm.
  • the film As a pearl agent layer, a multi-coloring powder having high transparency and high luminance, the pearl agent having a white appearance color obtained in Production Example 1 and exhibiting a purple interference color is used. It was dispersed in a top lacquer, coated with a clearance of 0.10 lmm, and dried at 70 ° C for 20 minutes to form a selectively permeable layer.
  • Shiseido's Preveil BP TM (a multicolor-changing pearl agent that exhibits a blue and purple interference color) as a colored pigment layer is dispersed in nitrone lacquer and selectively permeated at a clearance of 0.10 lmm. After applying to the lower layer and drying at 70 ° C for 20 minutes, further disperse pigment grade titanium oxide in ditron lacquer, apply with 0.10mm clearance and dry at 70 ° C for 20 minutes I let it.
  • Example 2 the multicolor-changeable material of the present invention.
  • a multi-color powder with high transparency and high brightness was produced in Production Example 1.
  • the resulting pearlescent agent which exhibits a white and purple interference color, is dispersed in a two-tone lacquer, coated with a 0.10 mm clearance, and dried at 70 ° C for 20 minutes to be selective. A transmission layer was formed.
  • Supineruburu one as colored pigments layer (C o A 1 2 0 4 ) dispersed in nits port Nrakka was coated on the lower layer of the selectively permeable layer in clearance 0. 101 mm, 2 0 min 70 After drying, pigment-grade titanium oxide is further dispersed in a ditron lacquer and applied with a clearance of 0.1 mm. C was dried for 20 minutes.
  • Example 2 a multicolored material of the present invention (Example 2) was obtained.
  • the combination of these materials changes color under normal light and under linear light. It was decided to conduct an experiment to confirm the sex.
  • Shiseido's Preveil BP TM (a multicolor pearlescent agent that has a blue appearance and develops a purple interference color) is dispersed in a double-coated lacquer and coated with a clearance of 0.11 mm. After drying at 20 ° C. for 20 minutes, pigment-grade titanium oxide was further dispersed in a nitrone lacquer, coated with a clearance of 0.11 mm, and dried at 70 for 20 minutes to obtain Comparative Example 1 i-. Comparative Example 2
  • Shiseido's Preveil BP TM (a multicolored pearl agent with a blue appearance color and a purple interference color) is used as an etron. Disperse in lacquer, apply with a clearance of 0.202 mm, dry at 70 ° C for 20 minutes, and further disperse pigment grade titanium oxide in a ditron lacquer and apply a clearance of 0.101 mm After drying at 70 ° C. for 20 minutes, Comparative Example 2 was obtained. Comparative Example 3
  • Each sample is irradiated with linear light from the vertical direction, and each sample is visually observed from the substantially vertical direction to evaluate whether or not it is configured to recognize the discoloration of the selective transmission layer below the hologram film. went.
  • Comparative Example 1 which was composed of only the pearlescent agent having relatively low light sensitivity, no discoloration was recognized under normal light and good results were obtained.
  • the peak wavelength is 450 ⁇ ⁇ ! Although it is at 5500 nm, discoloration due to interference was not sufficient and was not preferable.
  • Comparative Example 2 the layer thickness of the light-interfering pearlescent agent having a relatively low luminance was doubled, but the discoloration due to interference was small even under normal light, although some improvement was observed under linear light. It was recognized and was not preferred.
  • Comparative Example 3 in which the selective transmissive layer was formed using only the pigment without using the light-interfering pearlescent agent, no discoloration was recognized under normal light, and the linear light having good results was obtained. Irradiation was not preferable because no discoloration was recognized. In Comparative Example 4 in which the thickness of the pigment layer was doubled, the characteristics of the sample were not improved.
  • Examples 1 and 2 of the present invention use a pearl agent having high transparency and high luminance in the selective transmission layer, and the pearl agent has a peak wavelength of interference color of 40%. It is between 0 nm and 450 nm, and the brightness measured when applied to black paper and irradiated with light is ((a .10 -a 0 ) 2 + (b 0 -b 0 ) 2 ) Since it satisfies 220, no discoloration was recognized under normal light, and a good and good discoloration was shown under linear light.
  • multivariable dye in the present invention is not limited to only the examples described here.
  • the multicolor-change material according to the present invention exhibits good color change due to irradiation light. By utilizing such discoloration properties, it can be used for improving design properties, preventing forgery and falsification, and discriminating forged products. Furthermore, since the selectively permeable layer can be formed by a pearl agent having a small particle diameter, the element can be made thinner, and can be manufactured by a relatively simple process.

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  • Laminated Bodies (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)

Abstract

L'invention concerne un matériau multi-décoloration caractérisé en ce qu'il comprend une couche de transmission sélective consistant en une structure multicouche formée par lamination d'au moins deux substances à indice de réfraction différent dans les couches et ayant un facteur de transmission élevé à un faisceau de lumière linéaire incident provenant d'une direction sensiblement verticale ainsi qu'une réflectance de diffusion élevée à une lumière ordinaire, et une couche de pigment de couleur disposée sur la couche inférieure de la couche de transmission sélective, cette couche de transmission sélective contenant de préférence un agent perlé. L'invention concerne également un procédé d'observation consistant à irradier le matériau multi-décoloration au moyen d'un faisceau de lumière linéaire afin d'observer le matériau décoloré dans un ton de couleur différent de celui qu'il a sous une lumière ordinaire.
PCT/JP2002/007240 2001-07-17 2002-07-17 Materiau multi-decoloration et procede d'observation correspondant WO2003008330A1 (fr)

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JP2003513895A JPWO2003008330A1 (ja) 2001-07-17 2002-07-17 多変色素材及びその観察方法

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JP2001-216875 2001-07-17
JP2001216875 2001-07-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105137519A (zh) * 2015-09-29 2015-12-09 厦门汉盾光学科技有限公司 一种纯红色光学变色防伪颜料及其制备方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0161061U (fr) * 1987-10-14 1989-04-18
JPH0789526A (ja) * 1993-06-29 1995-04-04 Toyo Seikan Kaisha Ltd キャッツアイ効果を有する多層包装容器
JPH09263035A (ja) * 1996-03-28 1997-10-07 Shiseido Co Ltd ２色性塗装体
JPH1071665A (ja) * 1996-06-26 1998-03-17 Pentel Kk 装飾体
JPH10204798A (ja) * 1997-01-16 1998-08-04 Matsui Shikiso Kagaku Kogyosho:Kk 可変虹彩色建装材
JP2000033334A (ja) * 1998-07-16 2000-02-02 Toyota Motor Corp 塗膜構造
JP2000221916A (ja) * 1999-02-04 2000-08-11 Toppan Printing Co Ltd Ｏｖｄ画像付き画像表示媒体及びこの作製方法並びにこれに用いる複合型転写シート

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0161061U (fr) * 1987-10-14 1989-04-18
JPH0789526A (ja) * 1993-06-29 1995-04-04 Toyo Seikan Kaisha Ltd キャッツアイ効果を有する多層包装容器
JPH09263035A (ja) * 1996-03-28 1997-10-07 Shiseido Co Ltd ２色性塗装体
JPH1071665A (ja) * 1996-06-26 1998-03-17 Pentel Kk 装飾体
JPH10204798A (ja) * 1997-01-16 1998-08-04 Matsui Shikiso Kagaku Kogyosho:Kk 可変虹彩色建装材
JP2000033334A (ja) * 1998-07-16 2000-02-02 Toyota Motor Corp 塗膜構造
JP2000221916A (ja) * 1999-02-04 2000-08-11 Toppan Printing Co Ltd Ｏｖｄ画像付き画像表示媒体及びこの作製方法並びにこれに用いる複合型転写シート

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105137519A (zh) * 2015-09-29 2015-12-09 厦门汉盾光学科技有限公司 一种纯红色光学变色防伪颜料及其制备方法

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TW548192B (en) 2003-08-21

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