JP2005225006A - Method for tautomeric expression of color-storing optical discoloration function in sticking material for decoration, and sticking material for decoration having tautomeric color-storing optical discoloration properties - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for tautomerically storing and maintaining a developed state of color and an extinguished state of the color of a sticking material for decoration having optical discoloration properties, and to provide the sticking material for decoration having tautomeric color-storing optical discoloration properties and utilizing the method. <P>SOLUTION: The sticking material for decoration provided with an optical discoloration image which contains a photochromic compound having an optical memory function (color-storing optical discoloration properties) and which colors by exposure to ultraviolet rays or sunlight containing the ultraviolet rays and maintains the developed state of the color, while it extinguishes the color by exposure to visible light and is displaced into the extinguished state of the color, and a color conversion means which contains an ultraviolet absorber and/or a light-intercepting pigment intercepting the ultraviolet rays at least and cuts the ultraviolet rays of the sunlight and which extinguishes the color of the photochromic compound in the developed state of the color by exposure to the visible light, displaces the compound into the extinguished state of the color and maintains it, are provided. A function of storing and maintaining the developed and extinguished states of the color tautomerically is expressed by disposing the color conversion means in a state of contact or noncontact with the optical discoloration image. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a tautomeric expression method of a color memory photochromic function in a decorative adhesive material and a tautomatic color memory photochromic decorative adhesive material. Specifically, the photochromic image is developed by irradiating with ultraviolet rays or sunlight containing ultraviolet rays to maintain a colored state, decolored by irradiating with visible light, and displaced to a decolored state. A tautomatic expression method of a color-memory photochromic function in a decorative adhesive material, which is configured to express a function of reversibly storing and holding a colored state and a decolored state by intervening a specific color conversion means; Further, the present invention relates to an adhesive material for decorative color change and photochromic decoration.

Conventionally, a photochromic adhesive material using a photochromic material has been disclosed as a color-changing adhesive material (see, for example, Patent Document 1).
The photochromic adhesive material uses a photochromic material that changes color when exposed to sunlight and can be easily discolored, but it changes color when exposed to sunlight and does not receive sunlight. When left in place, the original color is reversibly restored to its original color, so that it does not have reciprocal memory of colors before and after the color change.
JP 2000-6745 A

In the process of studying the applicability of photochromic compounds having thermal irreversibility required for optical memory (color memory photochromic property) to various fields, the present inventors have selected alternative colors before and after the color change. The present invention has been completed by finding a convenient method for storing and holding the data interchangeably.
In order to embody the method, the present invention further examines, applies a specific photochromic compound as a photochromic material, arranges a specific color conversion means at a specific position, and stores the color of the photochromic compound. The method for making the color-changing photochromic function of a decorative adhesive material reversible and making the adhesive material effectively express the color-changing photochromic function in an adhesive material, An object of the present invention is to provide a sticking material for decorative color memory and photochromic decoration.

The first invention is a decorative paste provided with a photochromic image that develops color by irradiation with ultraviolet light or sunlight containing ultraviolet light, maintains a colored state, is erased by irradiation with visible light, and is displaced to a decolored state. It contains an ultraviolet absorber and / or at least a light-shielding pigment that blocks ultraviolet rays, cuts the ultraviolet rays of sunlight, and erases the photochromic image in the colored state by irradiation with visible light. The color converting means that is displaced and maintained in the decolored state is arranged in a contact or non-contact state, and a function for storing and holding the colored state and the decolored state in an alternating manner is exhibited. A requirement is a tautomeric expression method of the color memory photochromic function in the adhesive material.
Furthermore, it is a requirement that the photochromic image contains a diarylethene photochromic compound.

The second invention includes a diarylethene-based photochromic compound, which develops color by irradiation with ultraviolet rays or sunlight containing ultraviolet rays and maintains a colored state, and is discolored by irradiation with visible light to discolor to a decolored state. A photochromic compound that includes a decorative adhesive material and a UV absorber and / or a light-shielding pigment that shields at least UV light, cuts UV light of sunlight, and is in the colored state by irradiation with visible light Color conversion means for erasing and displacing and maintaining the color erasure state is provided, and the color conversion means is arranged in contact or non-contact state with the photochromic image to change the color development state and the color erasure state alternately. A reversible color memory and photochromic decorative adhesive material that expresses the function of storing and storing the image is required.
Furthermore, the photochromic image is at least one of a printed image, a coated image, a printed image, or a written image containing at least a diarylethene photochromic compound and a binder resin, and the photochromic image is integrated with the diarylethene photochromic compound in the plastic. The color conversion means is a sheet-like molded body obtained by integrally blending a transparent plastic with an ultraviolet absorber and / or a light-shielding pigment that shields at least ultraviolet rays, The molded body is provided with a die-cut image inside, and the color conversion means has an ultraviolet absorber and / or at least a light-shielding pigment that shields ultraviolet rays fixed in a binder resin in a dissolved or dispersed state. It must be either a printed or coated image, a printed image or a written image, or a printed or coated image, printed image or written image. This is directly arranged on the photochromic image of the decorative sticking material, and either the printed or coated image, the printed image or the written image is arranged on the transparent plastic sheet. The color conversion means is a plastic or fluid form in which an ultraviolet absorber and / or a light-shielding pigment that shields at least ultraviolet rays is dissolved or dispersed; The visible light irradiating device, the ultraviolet irradiating device that irradiates ultraviolet rays, the color changing means is set as an accessory of the decorative sticking material, It is a requirement that a general-purpose dye or pigment coexists.

The photochromic decorative adhesive material of the present invention has a color memory property and can selectively store and retain both aspects before and after the color change by applying a specific color conversion means. The product can be developed as a sticking material having duality.
In addition, since the color conversion means is light and safe, it can be used practically with peace of mind even in an infant or the like.

The photochromic image in the above is effective as long as it contains a photochromic compound having optical memory properties (color memory photochromic properties), and examples thereof include fulgide compounds and diarylethene compounds.
Examples of fulgide-based compounds include dimethylaminoindolyl fulgide, furyl fulgide, thienyl fulgide and the like.
The diarylethene compound is a photochromic material with significantly improved thermal irreversibility, durability against repetition, long wavelength sensitivity, high sensitivity, etc., satisfying applicability to decorative adhesives and is particularly effective This is illustrated below.

前記一般式（１）の環Ａは、フッ化（フルオロ化）又はペルフルオロ化されていてもよい炭化水素環又は複素環を示す。 The diarylethene photochromic compound is exemplified below, but the diarylethene photochromic compound used in the present invention is not limited to the following compounds.
Examples of the basic skeleton of the diarylethene photochromic compound include compounds represented by the general formula (1).

The ring A in the general formula (1) represents a hydrocarbon ring or a heterocyclic ring which may be fluorinated (fluorinated) or perfluorinated.

前記一般式（２）で示される化合物は、５個の炭素原子を含むフッ化又はペルフルオロ化されていてもよい環を有する。

前記一般式（３）で示される化合物は、４個の炭素原子を含む無水環を形成してなり、Ｘは酸素原子又はＮＲ基（ここで、Ｒは炭素数２乃至１６のアルキル及び／又はヒドロキシアルキル基である）を示す。 The compound represented by the general formula (1) is specifically exemplified by the general formula (2) or (3).

The compound represented by the general formula (2) has a ring containing 5 carbon atoms, which may be fluorinated or perfluorinated.

The compound represented by the general formula (3) forms an anhydrous ring containing 4 carbon atoms, and X is an oxygen atom or an NR group (where R is an alkyl having 2 to 16 carbon atoms and / or Which is a hydroxyalkyl group).

前記一般式（４）で示される化合物のＡ１基及びＡ２基は、二重結合に対して常にシス形にあり、互いに独立した置換或いは非置換のアルキル基、脂肪酸エステル基、ニトリル基を示す。 Furthermore, examples of the basic skeleton of another diarylethene photochromic compound include compounds represented by the general formula (4).

The A1 group and A2 group of the compound represented by the general formula (4) are always in a cis form with respect to the double bond, and represent a substituted or unsubstituted alkyl group, fatty acid ester group, and nitrile group independent of each other.

前記一般式（６）で示される化合物のＲ１及びＲ２はそれぞれメチル基又はエチル基を示す。 The compounds represented by the general formula (4) are specifically exemplified by the general formulas (5) and (6).

R1 and R2 of the compound represented by the general formula (6) each represent a methyl group or an ethyl group.

〔式中、ＹとＺは、同一或いは異なっていてもよく、酸素原子又は硫黄原子或いは硫黄、窒素またはセレニウムの酸化形を示し、ＤとＥは、同一或いは異なっていてもよく、炭素原子又は窒素原子を示し、Ｒ３乃至Ｒ１７は、同一或いは異なっていてもよく、水素、直鎖又は分枝状の炭素数１乃至１６のアルキル又はアルコキシ基、ハロゲン、直鎖又は分枝状の炭素数１乃至４のフルオロ又はペルフルオロ基、カルボン酸基、炭素数１乃至１６のアルキルカルボン酸基、炭素数１乃至１６のモノ又はジアルキルアミノ基、ニトリル基、フェニル基、ナフタレン基、複素環（ピリジン、キノリン、チオフェン、フラン、インドール、ピロール、セレノフェン、チアゾール、ベンゾチオフェン等）を示す。但し、ＤとＥが窒素原子の場合、Ｒ５とＲ６は存在しない。二重結合とＢ、Ｃ基の間には、結合に対してオルト位に、例えばＣＨ₃ 、ＣＮ又はＣＯ₃ Ｃ₂ Ｈ₅ のような水素以外の基が常に存在しなければならならず、Ｒ₃ 又はＲ₄ は水素以外でなければならず、同様にＲ₇ 又はＲ８は水素以外でなければならない。Ｒ１３乃至Ｒ１７については、隣接する基と環を結んだナフタレン骨格であってもよい。〕 The B group and the C group in the compounds represented by the general formulas (1) to (6) may be the same or different, and examples thereof include groups represented by the following structural formulas.

[Wherein Y and Z may be the same or different and represent an oxygen atom or a sulfur atom or an oxidized form of sulfur, nitrogen or selenium, D and E may be the same or different, and may be a carbon atom or Represents a nitrogen atom, and R3 to R17 may be the same or different, and are hydrogen, a linear or branched alkyl group or alkoxy group having 1 to 16 carbon atoms, a halogen, a linear or branched carbon number of 1; 1 to 4 fluoro or perfluoro groups, carboxylic acid groups, alkyl carboxylic acid groups having 1 to 16 carbon atoms, mono- or dialkylamino groups having 1 to 16 carbon atoms, nitrile groups, phenyl groups, naphthalene groups, heterocyclic rings (pyridine, quinoline) Thiophene, furan, indole, pyrrole, selenophene, thiazole, benzothiophene, etc.). However, when D and E are nitrogen atoms, R5 and R6 do not exist. Between the double bond and the B, C group, there must always be a group other than hydrogen, for example CH ₃ , CN or CO ₃ C ₂ H ₅ , in the ortho position to the bond; R ₃ or R ₄ must be other than hydrogen, and similarly R ₇ or R ₈ must be other than hydrogen. R13 to R17 may be a naphthalene skeleton in which a ring is bonded to an adjacent group. ]

等が挙げられる。 More specifically about the B group and the C group,

Etc.

The compound represented by the general formula (2) or (3) will be described in more detail.
As maleic anhydride compounds,
3,4-bis (1,2-dimethyl-3-indolyl) furan-2,5-dione,
Examples include 3,4-di (2-methyl-3-benzothiophene) furan-2,5-dione.
As cyclopentene compounds,
1- (1,2-dimethylindolyl) -2- (2-cyano-3,5-dimethyl-4-thienyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1- (1,2-dimethyl-3-indolyl) -2- (3-cyano-2,5-dimethyl-4-thienyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1- (1,2, -dimethyl-3-indolyl) -2- (2-methyl-3-benzothienyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1,2-bis (5- (4-methoxyphenyl) -2,4-dimethyl-3-thienyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1,2-bis (5- (2- (4-methoxyphenyl) -1-ethenyl) -2,4-dimethyl-3-thienyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1,2-bis (5- (2- (4-cyanophenyl) -1-ethenyl) -2,4-dimethyl-3-thienyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1,2-bis (2,4-dimethyl-5- (2- (2-quinolyl) -1-ethenyl) -3-thienyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1,2-bis (2,4-dimethyl-5- (2- (4-pyridyl) -1-ethenyl) -3-thienyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1,2-bis (2,4-dimethyl-5- (2- (1-naphthyl) -1-ethenyl) -3-thienyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1,2-bis (5- (2- (4-methoxyphenyl) -1-ethenyl) -2-methyl-4-octyl-3-thienyl) -3,3,4,4,5,5-hexafluoro Cyclopentene,
1,2-bis (5- (2- (4-t-butylphenyl) -1-ethenyl) -2,4-dimethyl-3-thienyl) -3,3,4,4,5,5-hexafluoro Cyclopentene,
1,2-bis (2,4-dimethyl-5- (2- (2-benzothiazyl) -1-ethenyl) -3-thienyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1- (6- (2- (4-methoxyphenyl) -1-ethenyl) -2-methyl-3-benzothienyl) -2- (5- (4- (4-dimethylaminophenyl) -1,3- Butadienyl) -2,4-dimethyl-3-thienyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1- (6- (4- (4-methoxyphenyl) -1,3-butadienyl) -2-methyl-3-benzothienyl) -2- (5- (4- (4-methoxyphenyl) -1,3 -Butadithienyl) -2,4-dimethyl-3-thienyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1,2-bis (6- (4- (4-methoxyphenyl) -1,3-butadienyl) -2-methyl-3-benzothienyl) -3,3,4,4,5,5-hexafluorocyclopentene ,
1,2-bis (6- (2- (4-methoxyphenyl) -1-ethenyl) -2-methyl-3-benzothienyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1- (6- (2- (4-Dimethylaminophenyl) -1-ethenyl) -2-methyl-3-benzothienyl) -2- (5- (2- (4-cyanophenyl) -1-ethenyl) -2,4-dimethyl-3-thienyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1- (6- (2- (4-methoxyphenyl) -1-ethenyl) -2-methyl-3-benzothienyl) -2- (5- (2- (4-cyanophenyl) -1-ethenyl)- 2,4-dimethyl-3-thienyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1- (6- (2- (4-methoxyphenyl) -1-ethenyl) -2-methyl-3-benzothienyl) -2- (5- (2- (4-methoxyphenyl) -1-ethenyl)- 2,4-dimethyl-3-thienyl) -3,3,4,4,5,5-hexafluorocyclopentene, 1- (6- (4- (4-methoxyphenyl) -1,3-butadienyl) -2 -Methyl-3-benzothienyl) -2- (5- (2- (4-methoxyphenyl) -1-ethenyl) -2,4-dimethyl-3-thienyl) -3,3,4,4,5 5-hexafluorocyclopentene,
1- (6- (2- (4-methoxyphenyl) -1-ethenyl) -2-methyl-3-benzothienyl) -2- (2,4-dimethyl- (5- (4- (4-methoxyphenyl) ) -1,3-butadienyl))-3-thienyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1- (1,2-Dimethyl-3-indolyl) -2- (2-cyano-3-methoxy-5-methylthienyl) -3,3,4,4,5,5-hexafluorocyclopentene 1,2- Bis (2-methyl-5-phenyl-3-thienyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1,2-bis (2,4-dimethyl-5-phenyl-3-thienyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1,2-bis (2-phenyl-5-methyl-4-thiazoyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1,2-bis (2-methylbenzothiophen-3-yl) -3,3,4,4,5,5-hexafluorocyclopentene,
1,2-bis (3-methylbenzothiophen-2-yl) -3,3,4,4,5,5-hexafluorocyclopentene,
1,2-bis (3-methyl-2-thienyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1,2-bis (2-methyl-6-nitro-3-benzothienyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1- (3-methyl-2-thienyl) -2- (2-methyl-3-thienyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1,2-bis (5- (4-methylphenyl) -2-methyl-3-thienyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1- (2,4-dimethyl-5-phenyl-3-thienyl) -2- (2-methyl-5-phenyl-3-thienyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1,2-bis (2,4-dimethyl-5- (4-methoxyphenyl) -3-thienyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1- (2-Methyl-5- (4-methylphenyl) -3-thienyl) -2- (2,4-dimethyl-5- (4-methylphenyl) -3-thienyl) -3,3,4, 4,5,5-hexafluorocyclopentene,
1- (2-Methyl-5- (4-methoxyphenyl) -3-thienyl) -2- (2,4-dimethyl-5- (4-methoxyphenyl) -3-thienyl) -3,3,4 4,5,5-hexafluorocyclopentene,
1- (3-methyl-2-thienyl) -2- (5-methyl-2-phenyl-4-thiazoyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1- (3-methylbenzothiophen-2-yl) -2- (5-methyl-2-phenyl-4-thiazoyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1- (2-methylbenzothiophen-3-yl) -2- (5-methyl-2-phenyl-4-thiazoyl) -3,3,4,4,5,5-hexafluorocyclopentene,
1- (2-Methyl-5-methyl-benzothiophen-3-yl) -2- (5-methyl-2-phenyl-4-thiazoyl) -3,3,4,4,5,5-hexafluorocyclopentene ,
1- (2-Methyl-5-phenyl-benzothiophen-3-yl) -2- (5-methyl-2-phenyl-4-thiazoyl) -3,3,4,4,5,5-hexafluorocyclopentene ,
1- (3-Methyl-5-methyl-benzothiophen-2-yl) -2- (5-methyl-2-phenyl-4-thiazoyl) -3,3,4,4,5,5-hexafluorocyclopentene ,
1- (3-Methyl-5-phenyl-benzothiophen-2-yl) -2- (5-methyl-2-phenyl-4-thiazoyl) -3,3,4,4,5,5-hexafluorocyclopentene ,
1- (3-Methyl-6-methyl-benzothiophen-2-yl) -2- (5-methyl-2-phenyl-4-thiazoyl) -3,3,4,4,5,5-hexafluorocyclopentene ,
1- (3-Methyl-6-phenyl-benzothiophen-2-yl) -2- (5-methyl-2-phenyl-4-thiazoyl) -3,3,4,4,5,5-hexafluorocyclopentene ,
1- (2-Methyl-6-methyl-benzothiophen-3-yl) -2- (5-methyl-2-phenyl-4-thiazoyl) -3,3,4,4,5,5-hexafluorocyclopentene ,
1- (2-Methyl-6-phenyl-benzothiophen-3-yl) -2- (5-methyl-2-phenyl-4-thiazoyl) -3,3,4,4,5,5-hexafluorocyclopentene Etc.

The compound represented by the general formula (5) or (6) will be described in more detail.
Examples of maleic acid compounds include 2,3-di (2-methylbenzothienyl) -dimethyl maleate.
Examples of the dicyanoethylene compound include 1,2-bis (2,3,5-trimethyl-4-thienyl) -1,2-dicyanoethylene and 1,2-bis (2-methyl-3-benzothienyl) -1. , 2-dicyanoethylene and the like.

The diarylethene-based photochromic compound is practically used as a pigment in the form of a dye as it is, a resin granule containing the compound, or a microcapsule-form pigment in which the compound is encapsulated in a microcapsule together with a medium such as water or an organic solvent. Conventionally used in general-purpose binder resins, for example, various synthetic resin emulsions, water-soluble or oil-soluble synthetic resins, other vehicles containing a fixing agent selected from glue, printing inks, paints Ink for stamps or ink for writing instruments can be prepared.
The pigment in the form of a microcapsule can be obtained by an appropriate method such as a conventionally known interfacial polymerization method, in situ polymerization method, in-liquid interfacial polymerization method, spray drying method, etc., and has a particle size of 0.5 to 50 μm, Those having a thickness of about 1 to 30 μm are effective in terms of dispersibility, endurance and workability.

  The photochromic image can be exemplified by a printing or coating image using the printing ink or paint formed on the surface of the decorative adhesive material, a printing image using a stamping ink, or a writing image using a writing instrument ink.

  Further, the photochromic image may be a sheet, filament, or molded by integrally blending the above-described dye, resin powder, or microcapsule pigment with a plastic made of a thermoplastic resin or a thermosetting resin. Further, it may be a molded article having an arbitrary shape and may be used as a base material, or may be attached to a base material to form a photochromic image.

  The thickness of the photochromic image is in the range of 3 μm to 400 μm, preferably 5 μm to 300 μm.

The diarylethene-based photochromic compound has a practical content of 0.005 to 20% by weight, preferably 0.01 to 10% by weight in the photochromic image.
If it is less than 0.005% by weight, the color density is low, and it is difficult to satisfy the visual effect due to light discoloration.
On the other hand, even if it is 20% by weight or more, the color density effect corresponding to the content cannot be obtained.
In the photochromic image, a non-photochromic dye or pigment can coexist to change the color at the time of coloring and decoloring in various ways, thereby further enhancing the visual effect.

The base material of the decorative adhesive material in the above may be any material as long as it is made of a conventional material and can form a printed image, and examples thereof include paper, synthetic paper, fabric, plastic film, and plastic foam. .
An adhesive layer (adhesive layer) and, if necessary, a release layer such as release paper are provided on the back surface of the substrate.
The base material itself or the adhesive layer may be bonded by thermocompression bonding using a heat-melting resin such as polyamide-based, polyolefin-based, ethylene-vinyl acetate-based, polyurethane-based, or polyester-based resin. .

  The base material is provided with a photochromic image to form a decorative sticking material. Color is generated by ultraviolet irradiation with an ultraviolet irradiation tool equipped with a lamp or a light emitting diode that emits ultraviolet light as a light source, or irradiation with sunlight containing ultraviolet light. And the color development state can be maintained.

The color conversion means includes an ultraviolet absorber and / or a light shielding pigment that shields ultraviolet rays, cuts ultraviolet rays of sunlight and decolorizes the photochromic compound in the colored state by irradiation with visible light, This is a means to maintain the state by displacing the sheet. Molding of sheet, filament, or any other shape, which is made by blending a conventional UV absorber and light shielding pigment into a transparent plastic. A body etc. can be illustrated.
In the above-described sheet or thin-walled molded body, images such as characters, designs, patterns, etc. can be punched out to enhance the visual effect by comparing the colored image and the decolored image.
In addition, the color conversion means is a printing in which an ultraviolet absorber and / or a light shielding pigment is fixed in a binder resin in a dissolved or dispersed state on a support made of a transparent or translucent sheet or an arbitrarily shaped shaped body. Or what provided the coating image, the printing image, or the writing image, or what directly arrange | positioned the said printing thru | or coating image, the printing image, or the writing image on the photochromic image of the sticking material for decoration may be used.
Further, the color conversion means may be a woven fabric, a knitted fabric, a braided fabric, a non-woven fabric, etc. composed of transparent fibers fixed to the surface or blended with an ultraviolet absorber and / or a light shielding pigment that shields at least ultraviolet rays. A fabric having flexibility may be used.
As the transparent fiber, a flat yarn-like fiber effectively cuts ultraviolet rays. Therefore, a fabric using one or both of the warp and the weft as the flat yarn-like transparent fiber is preferable.
Furthermore, the color conversion means may be in the form of a plastic or fluid such as a paste or gel containing an ultraviolet absorber and / or a light shielding pigment.

In the case where an ultraviolet absorber is blended with the plastic, an effective ultraviolet-cutting effect can be achieved by blending 0.001 wt% or more, preferably 0.01 wt% or more of the ultraviolet absorber with respect to the weight of the plastic. To fulfill the role of
Further, in a system in which a fixed image is formed with an ink in which an ultraviolet absorber is dissolved or dispersed in a vehicle containing a binder resin, it is 0.05% by weight or more based on the binder resin. By blending 1% by weight or more of the ultraviolet absorber, it serves as an effective ultraviolet-cutting effect.
On the other hand, in the system in which the light shielding pigment is blended, 0.1 to 40% by weight, preferably 1 to 30% by weight, based on the plastic or binder resin, and fixed in a dispersed state. Effectively achieves the desired UV protection effect.

As the ultraviolet absorber,
2,4-dihydroxybenzophenone,
2-hydroxy-4-methoxybenzophenone,
2,2′-dihydroxy-4,4′-dimethoxybenzophenone,
2,2 ′, 4,4′-tetrahydroxybenzophenone,
2-hydroxy-4-methoxybenzophenone-5-sulfonic acid,
2-hydroxy-4-octoxybenzophenone,
Bis- (2-methoxy-4-hydroxy-5-benzoylphenyl) -methane,
2- [2′-hydroxy-3 ′, 5′-di-t-amylphenyl] -benzophenone,
2-hydroxy-4-dodecyloxy-benzophenone [trade name: Seasorb 103, manufactured by Cypro Kasei Co., Ltd.]
2-hydroxy-4-octadecyloxybenzophenone,
2,2′-dihydroxy-4-methoxybenzophenone,
2-hydroxy-4-benzyloxybenzophenone,
Benzophenone-based ultraviolet absorbers such as 2- [2′-hydroxy-3 ′, 5′-di-t-amylphenyl] -benzophenone.

Phenyl salicylate,
Para-t-butylphenyl salicylate,
Paraoctylphenyl salicylate,
2-4-di-t-butylphenyl-4-hydroxybenzoate,
1-hydroxybenzoate,
1-hydroxy-3-tert-butyl-benzoate,
1-hydroxy-3-t-octylbenzoate,
Salicylic acid UV absorbers such as resorcinol monobenzoate.

Ethyl-2-cyano-3,3′-diphenyl acrylate,
2-ethylhexyl-2-cyano-3,3′-diphenyl acrylate,
Cyanoacrylate ultraviolet absorbers such as 2-ethylhexyl-2-cyano-3-phenylcinnato.

2- [5-t-butyl-2-hydroxyphenyl] -benzotriazole [trade name: Tinuvin-PS, manufactured by Ciba-Geigy Corporation],
2- [5-methyl-2-hydroxyphenyl] -benzotriazole,
2- [2-hydroxy-3,5-bis (α, α-dimethylbenzyl) phenyl] -2H benzotriazole,
2- [3,5-di-t-butyl-2-hydroxyphenyl] -benzotriazole,
2- [3-t-butyl-5-methyl-2-hydroxyphenyl] -5-chlorobenzotriazole,
2- [3,5-di-tert-butyl-2-hydroxyphenyl] -5-chlorobenzotriazole,
2- [3,5-di-t-amyl-2-hydroxyphenyl] -benzotriazole [trade name: Tinuvin 328, manufactured by Ciba-Geigy Corporation],
Methyl-3- [3-t-butyl-5- (2H-benzotriazol-2-yl) -4-hydroxyphenyl] propionate-polyethylene glycol molecular weight 300 [trade name: Tinuvin 1130, manufactured by Ciba-Geigy Corporation],
2- [3-dodecyl-5-methyl-2-hydroxyphenyl] benzotriazole,
Methyl-3- [3- (2H-benzotriazol-2-yl) -5-tert-butyl-4-hydroxyphenyl] propionate-polyethylene glycol molecular weight 300,
2- [3-t-butyl-5-propyl octylate-2-hydroxyphenyl] -5-chlorobenzotriazole,
2- [2-hydroxyphenyl-3,5-di- (1,1′-dimethylbenzyl) phenyl] -2H-benzotriazole,
2- [2-hydroxy-5-t-octylphenyl] -2H-benzotriazole,
2- [3-t-butyl-5-octyloxycarbonylethyl-2-hydroxyphenyl] -benzotriazole [trade name: Tinuvin 384, manufactured by Ciba-Geigy Corporation],
2- [2-hydroxy-5-tetraoctylphenyl] -benzotriazole,
2- [2-hydroxy-4-octoxy-phenyl] -benzotriazole,
2- [2′-hydroxy-3 ′-(3 ″ 4 ″ 5 ″ 6 ″ -tetrahydrophthalimidomethyl) -5′-methylphenyl] -benzotriazole,
Benzotriazole ultraviolet absorbers such as 2- (2-hydroxy-5-t-butylphenyl) -benzotriazole.

Ethanediamide-N- (2-ethoxyphenyl) -N ′-(4-isododecylphenyl),
2,2,4,4-tetramethyl-20- (β-lauryl-oxycarbonyl) -ethyl-7-oxa-3,20-diazodispiro (5,1,11,2) heneic acid-21-one, etc. Examples include oxalic anilide-based ultraviolet absorbers.

Examples of the light-shielding pigment include metallic luster pigments having a particle diameter of 5 to 400 μm, or transparent titanium dioxide, transparent iron oxide, transparent cerium oxide, and transparent zinc oxide having a particle diameter of 1 μm or less. The above can be applied.
Examples of the metallic luster pigment include those in which the surface of a core substance selected from natural mica, synthetic mica, glass, and alumina is coated with a metal oxide, and an iris effect, a transmission effect, and the like produced by selective interference of visible light. By virtue of the synergistic effect of the reflection effect of visible light on the photochromic image, the color change of the metallic luster tone can be made visible.
When the light-shielding pigment is applied, it has both a light absorption (or light reflection) function and a light transmission function, and absorbs or reflects at least a part of ultraviolet rays and visible rays, and also visible rays can be visually observed. An appropriate amount that does not hinder can be transmitted, and the color change of the photochromic image can be seen through.
Here, on the upper layer or the lower layer of the layer containing the light shielding pigment, a layer containing an ultraviolet absorber can be arranged in a laminated form. Furthermore, a coexistence layer can be formed by blending a light shielding pigment with an ultraviolet absorber in an appropriate ratio.

  Furthermore, a visible light irradiator provided with a light source such as a lamp or a light emitting diode whose main light emitting region is visible light can be used as the color conversion means.

  The color conversion means is disposed in a contact or non-contact manner on a decorative adhesive material having a photochromic image. Specifically, a state in which the entire surface is in contact with a decorative adhesive material, a state in which a part of the material is in contact, a state in which the whole is not in contact, a state in which contact is made except for the formation of a die-cut image, a decorative paste The state etc. which covered the circumference | surroundings of the dressing | contact material non-contactedly can be illustrated.

The decorative adhesive material and the color conversion means are not limited to the combinations of the following embodiments, and combinations between mutually compatible embodiments are also effective.
Example 1 (see FIG. 1)
Preparation of Tautomer Color Memory Photochromic Decorative Adhesive Material Diarylethene-based photochromic compound A (1- (2-phenyl-) which reversibly changes color from colorless to orange on the synthetic paper surface having an adhesive layer on the back side 5-methyl-4-thiazoyl) -2- (3-methyl-2-thienyl) -3,3,4,4,5,5-hexafluorocyclopentene) is encapsulated with an epoxy resin film by a known interfacial polymerization method. A flower pattern (photochromic image 2) was screen printed using a screen printing ink containing microcapsule pigment.
In the vicinity of the pattern, a colorless transparent polyester film having an ultraviolet absorbing ability is cut, and a sheet of a size that completely covers the pattern (color conversion means 3) is used to fix one side of the sheet to the synthetic paper surface, The sheet was inverted by using the fixing portion as a fulcrum to cover the pattern, or a tethered color memory photochromic decorative sticking material 1 was obtained as an uncoated structure.

The flower pattern is not visible when the sheet is placed on the top surface, but when the sheet is turned and irradiated with sunlight, the photochromic image is changed to orange by the ultraviolet light contained in the sunlight. A pattern appeared, and this state was maintained without discoloring when left in the outdoors, indoors, or dark places.
Next, when the sheet is placed on the pattern again and irradiated with sunlight, the ultraviolet light contained in the sunlight is blocked by the sheet, and other light (visible light) is irradiated. This state disappeared, and this state was maintained without being discolored even if it was left outdoors, indoors, or in a dark place.
By repeating the above operation, it was possible to have a reciprocal color memory between a state in which the flower pattern was visible and a state in which it was not visible, and enjoyed repeatedly.
In addition, the picture book which shows the same aspect change as the above was obtained by sticking and using the said adhesive sticking material for a picture book.

Example 2
Production of adhesive material for tautomeric color memory and photochromic decorations. On the back of the synthetic paper with an adhesive layer on the back, a topless pattern is printed with non-color-changing ink and then reversible from colorless to blue. Containing diarylethene-based photochromic compound B (1,2-bis (2,4-dimethyl-5-phenyl-3-thienyl) -3,3,4,4,5,5-hexafluorocyclopentene) which changes color Congratulations on the letter "photo-colored image" was printed on the screen using printing ink.
In the vicinity of the characters, a sheet (color conversion means) of a size completely covering the characters is cut by cutting a colorless and transparent polyester film having ultraviolet absorbing ability, and one side of the sheet is fixed to the synthetic paper surface and fixed. The sheet was inverted with the part as a fulcrum to cover the character with the sheet, or a tethered color memory photochromic decorative sticking material was obtained as an uncoated structure.

The characters “open and congratulations” are not visible when the sheet is placed on the top surface, but only the top-of-piece pattern is visible, but when the sheet is turned and irradiated with sunlight, the ultraviolet light contained in the sunlight is visible. As the light discoloration image changes to blue, the characters `` Open and congratulate '' appear, and this state will not change even if it is left outdoors, indoors, or in a dark place, and will remain in that state. It was.
Next, when the sheet is placed again on the character and irradiated with sunlight, the ultraviolet light contained in the sunlight is blocked by the sheet and other light (visible light) is irradiated, so the character gradually fades. This state disappeared, and this state was maintained without being discolored even if it was left outdoors, indoors, or in a dark place.
By repeating the above operation, it was possible to have a reciprocal color memorization between the state where the characters “open and congratulations” were visible and the state where they were not visible, and enjoyed over and over again. In addition, the New Year's card | curd which shows the same aspect change as the above was obtained by sticking and using the said adhesive sticking material for New Year's cards.

Example 3
Preparation of adhesive material for tautomeric color memory and photochromic decoration. On the surface of the synthetic paper with the adhesive layer on the back side, print a wooden pattern with non-color-changing ink, and from the colorless on the part where the pattern is not provided. Diarylethene-based photochromic compound C (1- (3-methylbenzothiophen-2-yl) -2- (5-methyl-2-phenyl-4-thiazoyl) -3,3,4, which reversibly changes color to red Using a screen printing ink containing a pigment in which (4,5,5-hexafluorocyclopentene) was dispersed in a resin, a bird pattern (photochromic image) was screen printed.
Separately, a fabric (color conversion means) in which a binder resin containing an ultraviolet absorber is fixed to the surface of a fabric using transparent flat yarn and transparent yarn as warp and weft, respectively, is used to change color memory. A photochromic adhesive material was obtained.

The bird pattern is not visible when the top surface is covered with a cloth, but only the tree pattern is visible, but when the fabric is removed and sunlight is irradiated, a photochromic image is generated by the ultraviolet light contained in the sunlight. Since it changed to red, a bird pattern appeared, and this state was maintained without being discolored when left outdoors, indoors, or in a dark place.
Next, when the pattern is covered again with fabric and irradiated with sunlight, the ultraviolet light contained in the sunlight is blocked by the sheet, and other light (visible light) is irradiated, so the bird's pattern is gradually discolored. This state disappeared, and this state was maintained without being discolored even if it was left outdoors, indoors, or in a dark place.
By repeating the above operation, it was possible to have reciprocal color memorization between the state where the bird's pattern was visible and the state where it was not visible, and enjoyed it repeatedly.
In addition, the picture book which shows the same aspect change as the above was obtained by sticking and using the said adhesive sticking material for a picture book.

Example 4
Production of adhesive material for tautomeric color memory and photochromic decoration. On the paper surface having an adhesive layer on the back side, the characters “frog” are printed using non-color-changing ink, and the characters are not provided. Diarylethene-based photochromic compound D (1,2-bis (2-methyl-6-nitro-3-benzothienyl) -3,3,4,4,5,5-hexa reversibly color-changing from colorless to green A frog pattern (photochromic image) was screen-printed using a screen printing ink containing a microcapsule pigment in which fluorocyclopentene) was encapsulated with an epoxy resin film by a known interfacial polymerization method.
Using a sheet (color conversion means) of a size that completely cuts the frog's pattern cut into a rectangular transparent colorless polyester film having ultraviolet absorbing ability, a piece of the sheet is fixed to the paper surface, and the fixing part is a fulcrum By reversing the sheet, the frog pattern was covered with the sheet, or a tethered color memory photochromic decorative sticking material was obtained as an uncoated structure.

The pattern is not visible when the sheet is placed on the upper surface, and only the characters “frog” are visible. However, when the sheet is turned and irradiated with sunlight, a photochromic image is generated by the ultraviolet light contained in the sunlight. Since the color changed to green, it appeared, and this state was maintained without being discolored even if it was left outdoors, indoors, or in a dark place.
Next, when the sheet is placed on the pattern again and irradiated with sunlight, the ultraviolet light contained in the sunlight is blocked by the sheet, and other light (visible light) is irradiated. This state disappeared, and this state was maintained without being discolored even if it was left outdoors, indoors, or in a dark place.
By repeating the above operation, it was possible to have reciprocal color memorization between the state where the frog pattern was visible and the state where it was not visible, and enjoyed it repeatedly.
In addition, the picture book which shows the same aspect change as the above was obtained by sticking and using the said adhesive sticking material for a picture book.

Example 5
Fabrication of reversible color memory and photochromic decorative adhesive material Printed on the surface of a transparent plastic film with an adhesive layer on the back using a non-color-changing ink with a dish pattern and the words “Happy Birthday” The diarylethene photochromic compound E (1,2-bis (5-methyl-2-phenyl-4-thiazoyl) -3,3,4, which reversibly changes color from colorless to pink on the pattern of the plate A cake pattern (photochromic image) was screen printed using a screen printing ink containing a pigment in which 4,5,5-hexafluorocyclopentene) was dispersed in a resin.
Separately, a colorless and transparent polyester film having ultraviolet absorbing ability is cut into a circle, and a sheet (color conversion means) provided with a layer showing weak adhesiveness on the back surface is combined with a tactile color memory photochromic property. An adhesive material was obtained.

The cake pattern is not visible when the sheet is attached to the upper surface, but only the pattern of the dish and the characters `` Happy Birthday '' are visible, but when the sheet is peeled off and irradiated with sunlight, Since the photochromic image changes to pink due to the ultraviolet light contained in the cake, a cake pattern appears, and this state does not change even if it is left outdoors, indoors, or in a dark place. Was maintained.
Next, when the sheet is attached again on the pattern and irradiated with sunlight, the ultraviolet light contained in the sunlight is blocked by the sheet and other light (visible light) is irradiated, so the pattern gradually disappears. The color disappeared, and this state was maintained without being discolored even if it was left outdoors, indoors, or in a dark place.
By repeating the above operation, it was possible to have reciprocal color memorization between the state where the cake pattern was visible and the state where it was not visible, and enjoyed it repeatedly.
In addition, the present which showed the same aspect change as the above was obtained by sticking and using the said sticking material for decoration on a birthday present.

Example 6
Production of adhesive material for tautomeric color memory and photochromic decorations The surface of the white plastic film with the adhesive layer on the back is printed with "MERRY CHRISTMAS" with non-color-changing ink, and then reversible from colorless to pink Diarylethene-based photochromic compound E (1,2-bis (5-methyl-2-phenyl-4-thiazoyl) -3,3,4,4,5,5-hexafluorocyclopentene) having a known color change A photochromic image was formed by printing a Santa Claus pattern using a microcapsule pigment encapsulated with an epoxy resin film by a polymerization method and an ink containing fluorescent yellow.
Using a sheet (color conversion means) sized to completely cover the Santa Claus pattern, cut from a colorless and transparent polyester film having ultraviolet absorbing ability, one piece of the sheet is fixed to the film surface, and the fixing part is used as a fulcrum. By reversing the sheet, the pattern of Santa Claus was covered with the sheet, or a tethered color memory photochromic decorative sticking material was obtained as an uncoated structure.

The Santa Claus pattern is fluorescent yellow when the sheet is placed on the top surface, but when the sheet is turned and irradiated with sunlight, the photochromic image is changed to red by the ultraviolet light contained in the sunlight. This state was maintained without discoloring even if left in the outdoors, indoors, or dark places.
Next, when the sheet is placed again on the film surface and irradiated with sunlight, the ultraviolet light contained in the sunlight is blocked by the sheet, and other light (visible light) is irradiated, so the pattern gradually changes color. As a result, the fluorescent yellow color was maintained, and this state was maintained without discoloring even when left outdoors, indoors, or in a dark place.
By repeating the above operation, it was possible to have a reciprocal color memory between a state in which a fluorescent yellow pattern was visible and a state in which a red pattern was visible, and it was possible to enjoy it repeatedly.
In addition, the present which showed the same aspect change as the above was obtained by sticking and using the said sticking material for decoration on a Christmas present.

Example 7
Preparation of adhesive material for tautomeric color memory and photochromic decoration The letter “airplane” is printed using non-color-changing ink on the surface of a transparent plastic film having an adhesive layer on the back, and the letters are provided. Diarylethene-based photochromic compound C (1- (3-methylbenzothiophen-2-yl) -2- (5-methyl-2-phenyl-4-thiazoyl)- (3,3,4,4,5,5-hexafluorocyclopentene) using a screen printing ink containing a microcapsule pigment encapsulated with an epoxy resin film by a known interfacial polymerization method to form a rectangular image (photochromic image) Screen printed.
Separately from this, a sheet A (color conversion means) having ultraviolet absorbing ability provided with a layer having weak adhesiveness on the back side obtained by cutting an airplane design, and a colorless and transparent polyester film having ultraviolet absorbing ability in a rectangular shape The cut sheet B (color conversion means) was combined to obtain a tautomeric color memory and photochromic decorative sticking material.

When the adhesive material is irradiated with sunlight, the photochromic image is changed to red by the ultraviolet light contained in the sunlight, so that a rectangular image appears, and this state can be any of outdoor, indoor, and dark places. Even if left in place, it maintained its state without discoloring.
Next, when the sheet A is pasted on the image and irradiated with sunlight, the ultraviolet light contained in the sunlight is blocked by the sheet, and other light (visible light) is irradiated. The pattern of the airplane is visually erased.
This state was maintained without discoloring even if left in the outdoor, indoor, or dark place.
Next, when the sheet A is peeled off, the sheet B is adhered and the sunlight is irradiated, the ultraviolet light contained in the sunlight is blocked by the inclusion body, and other light (visible light) is irradiated. The pattern was gradually discolored and disappeared, and this state was maintained without being discolored even if it was left outdoors, indoors, or in a dark place.
By repeating the above operation, the color image has a reciprocal color memory property in which a rectangular image is visually recognized, an airplane symbol is visually recognized, and an image or symbol is not formed. Also enjoyed.
In addition, the toy which shows the same aspect change as the above was obtained by affixing and using the said adhesive sticking material for toys.

Example 8
Production of adhesive material for tautomeric color memory and photochromic decoration The letter “SEA” was printed using non-color-changing ink on the surface of a transparent plastic film having an adhesive layer on the back, and the letters were provided. The diarylethene-based photochromic compound B (1,2-bis (2,4-dimethyl-5-phenyl-3-thienyl) -3,3,4,4,5 which reversibly changes color from colorless to blue in a portion not present. , 5-hexafluorocyclopentene) was screen printed with a rectangular image (photochromic image) using a screen printing ink.
Separately from this, a sheet (color conversion means) provided with a layer having weak adhesiveness on the back side, on which a dolphin pattern is printed with an ink containing an ultraviolet absorber, and a colorless transparent polyester film having an ultraviolet absorbing ability The sheet B (color conversion means) cut into rectangles was combined to obtain an adhesive material for tautochromatic color memory and photochromic decoration.

When the sticking material is irradiated with sunlight, the photochromic image is changed to blue by the ultraviolet light contained in the sunlight, so that a rectangular image appears, and this state can be any of outdoor, indoor, and dark places. Even if left in place, it maintained its state without discoloring.
Next, when the sheet A is pasted on the image and irradiated with sunlight, the ultraviolet light contained in the sunlight is blocked by the sheet, and other light (visible light) is irradiated. The color of the dolphin will be erased and the dolphin pattern will be visible.
This state was maintained without discoloring even if left in the outdoor, indoor, or dark place.
Next, when the sheet A is peeled off and the sheet B is adhered and irradiated with sunlight, the ultraviolet light contained in the sunlight is blocked by the inclusion body, and other light (visible light) is irradiated. The pattern was gradually discolored and disappeared, and this state was maintained without being discolored even if it was left outdoors, indoors, or in a dark place.
By repeating the above operation, the color image has a reciprocal color memory property in which a rectangular image is visually recognized, a dolphin symbol is visually recognized, and no image or symbol is formed. Also enjoyed.
In addition, the notebook which shows the same aspect change as the above was obtained by affixing the said adhesive material for decoration on a notebook, and using it.

Example 9
Preparation of Tautomeric Color Memory and Photochromic Decorative Adhesive Material A castle pattern and “CASTLE” characters were printed with non-color-changing ink on the surface of a synthetic paper having an adhesive layer on the back side.
Separately, diarylethene-based photochromic compound A (1- (2-phenyl-5-methyl-4-thiazoyl) -2- (3-methyl-2-thienyl) -3, which reversibly changes its color from colorless to orange. , 3,4,4,5,5-hexafluorocyclopentene), a diarylethene photochromic compound E (1,2-bis (5-methyl-2-) that reversibly changes its color from colorless to pink (Phenyl-4-thiazoyl) -3,3,4,4,5,5-hexafluorocyclopentene), and diarylethene photochromic compound F (1- ( 2-Methyl-5- (4-methylphenyl) -3-thienyl) -2- (2,4-dimethyl-5- (4-methylpheny) ) -3-thienyl) -3,3,4,4,5,5- hexafluoro cyclopentene) using a screen printing ink containing a pattern of background (photochromic image) was screen-printed.
An oily screen ink containing a metallic luster pigment (trade name: Iriodin 219, manufactured by Merck Japan Co., Ltd.) called a pearl pigment in which the surface of natural mica is coated with titanium oxide on a transparent polyester film is printed in the same shape as synthetic paper Using a sheet (color conversion means) cut into pieces, the piece of the sheet is fixed to the synthetic paper, and the sheet is reversed with the fixing portion as a fulcrum, so that the synthetic paper is covered with the sheet or not. As a constitution, an adhesive material for tautomatic color memory and photochromic decoration was obtained.

The background pattern is not visible when the sheet is placed on the top surface, but only the castle pattern and the characters “CASTLE” are visible, but when the sheet is turned and irradiated with sunlight, it is included in the sunlight. Since the photochromic image changes to orange, pink, and blue due to ultraviolet light, the background pattern appears, and this state does not change even if it is left outdoors, indoors, or in a dark place. Was maintained.
Next, when the sheet is placed again on the pattern and irradiated with sunlight, the ultraviolet light contained in the sunlight is blocked by the sheet and other light (visible light) is irradiated, so the background pattern gradually It disappeared and disappeared, and this state was maintained without being discolored even if it was left outdoors, indoors, or in a dark place.
By repeating the above operation, it was possible to have a reciprocal color memorization between a state in which the background pattern was visible and a state in which the background pattern was not visible, and enjoyed repeatedly.
In addition, the picture book which shows the same aspect change as the above was obtained by sticking and using the said adhesive sticking material for a picture book.

Example 10
Preparation of Tautomer Color Memory Photochromic Decoration Adhesive Material Diarylethene-based photochromic compound A (1- (2-) that reversibly changes its color from colorless to orange on the nonwoven fabric surface having a heat-meltable resin layer on the back surface. Screen printing ink containing phenyl-5-methyl-4-thiazoyl) -2- (3-methyl-2-thienyl) -3,3,4,4,5,5-hexafluorocyclopentene), from colorless to pink Screen containing diarylethene-based photochromic compound E (1,2-bis (5-methyl-2-phenyl-4-thiazoyl) -3,3,4,4,5,5-hexafluorocyclopentene) which changes color reversibly A flower pattern (photochromic image) was screen printed using printing ink.
Separately, a fabric (color conversion means) in which a binder resin containing an ultraviolet absorber is fixed to a fabric surface using a transparent flat yarn and a transparent yarn as warp and weft, respectively, is combined with tautomatic color memory. A photochromic adhesive material was obtained.

The flower pattern is not visible in a state where the upper surface is covered with a fabric, and when the fabric is removed and irradiated with sunlight, the photochromic image is changed to orange and pink by the ultraviolet light contained in the sunlight. A flower pattern appeared, and this state maintained its state without discoloration even when left outdoors, indoors, or in a dark place.
Next, when the pattern is covered again with fabric and irradiated with sunlight, the ultraviolet light contained in the sunlight is blocked by the fabric and other light (visible light) is irradiated. This state disappeared, and this state was maintained without being discolored even if it was left outdoors, indoors, or in a dark place.
By repeating the above operation, it was possible to have a reciprocal color memory between a state in which the flower pattern was visible and a state in which it was not visible, and enjoyed repeatedly.
By applying the decorative adhesive material to the doll's clothes by thermocompression bonding, the fabric used as the color conversion means is cut and sewed to produce and use the doll's coat. A doll costume showing the change was obtained.

The photochromic image of the photochromic decorative adhesive material of the present invention is in the colored state (A), and the photochromic image in the colored state is applied to the decolored state by applying color conversion means (B). It is explanatory drawing which shows.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tactile color memory property Adhesive material for photochromic decoration 2 Photochromic image 3 Color conversion means

Claims (15)

  With respect to a decorative adhesive material provided with a photochromic image that develops color by irradiation with ultraviolet rays or ultraviolet rays and maintains a colored state, is erased by irradiation with visible light, and is displaced to a decolored state, It contains a UV absorber and / or at least a light-shielding pigment that blocks UV rays, cuts UV rays from sunlight, and discolors the photochromic image in the colored state by irradiation with visible light, and shifts to a decolored state. The color memory in the decorative sticking material is characterized in that the color conversion means to be maintained is arranged in a contact or non-contact state, and a function of storing and holding the coloring state and the decoloring state interchangeably is exhibited. Method of tactile photochromic function.   The photochromic image comprises a diarylethene-based photochromic compound, and the tautomatic expression method of the color memory photochromic function in the decorative adhesive material according to claim 1.   A decorative paste containing a diarylethene-based photochromic compound, which has a photochromic image that develops color by irradiation with ultraviolet light or sunlight containing ultraviolet light, maintains a colored state, and is decolored by irradiation with visible light to shift to a decolored state. It contains an adhering material, an ultraviolet absorber and / or a light shielding pigment that shields at least ultraviolet rays, cuts ultraviolet rays of sunlight, and decolorizes the photochromic compound in the colored state by irradiation with visible light. A color conversion unit that maintains the state after being displaced, and the color conversion unit is placed in contact or non-contact with the photochromic image, and the color development state and the color erasure state are stored in a reciprocal manner. Color-modifying photochromic decoration sticking material that expresses color.   The adhesive material for tautomatic color-memory photochromic decoration according to claim 3, wherein the photochromic image is any one of a printed image, a coated image, a printed image, and a written image containing at least a diarylethene photochromic compound and a binder resin. .   4. The adhesive material for tautochromatic color-memory photochromic decoration according to claim 3, wherein the photochromic image is a molded body in which a diarylethene photochromic compound is integrally blended with plastic.   4. The tautomatic color memory light according to claim 3, wherein the color conversion means is a sheet-like molded body obtained by integrally blending a transparent plastic with an ultraviolet absorber and / or a light shielding pigment that shields at least ultraviolet rays. Adhesive for discoloration decoration.   The adhesive material for tautomeric color memory and photochromic decoration according to claim 6, wherein a die-cut image is disposed inside the sheet-like molded body.   The color conversion means is any one of a printed image, a coated image, a printed image, or a written image in which an ultraviolet absorber and / or a light shielding pigment that shields at least ultraviolet rays is fixed in a binder resin in a dissolved or dispersed state. The adhesive material for tautomeric color memory and photochromic decorations according to claim 3.   9. The color-changing color-memory photochromic ornament for decoration according to claim 8, wherein any one of the printed image, the coated image, the printed image, and the written image is directly disposed on the photo-color-change image of the decorative sticking material. Adhesive material.   9. The reversible color-memory photochromic decorative sticking material according to claim 8, wherein any one of a printed image, a coated image, a printed image, and a written image is disposed on a transparent plastic sheet.   4. The color-changing means for photochromic decoration with tautomatic color memory according to claim 3, wherein the color conversion means is a plastic or fluid form in which an ultraviolet absorber and / or a light-shielding pigment that shields at least ultraviolet light is dissolved or dispersed. Adhesive material.   4. The adhesive material for tautomatic color memory and photochromic decoration according to claim 3, wherein the color conversion means is a visible light irradiator having a main light emitting region in visible light.   4. The adhesive material for tautomatic color memory and photochromic decoration according to claim 3, wherein the adhesive is displaced into a colored state by an ultraviolet irradiator that irradiates ultraviolet rays.   The color-changing means is a tethered color-memory photochromic decorative sticking material according to claim 3, which is set as an accessory of the decorative sticking material.   4. The adhesive material for tautochromatic color-memory photochromic decoration according to claim 3, wherein a general-purpose dye or pigment coexists in the photochromic image.

Images