JPH07102645B2 - Iris powder - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an iris powder having high brilliance and a method for producing the iris powder.

[0002]

2. Description of the Related Art Conventionally, metal powders and metal deposition powders have been used as high-grade decoration materials such as Buddhist altars, Buddhist altars, lacquer ware, fans, picture frames, fusuma, various marking materials, spines and covers of books.
Alternatively, it is widely used as a decorative material for packaging materials such as cosmetics, pharmaceuticals, soaps, toiletry products and foods.
However, the conventional metal powder or metal vapor deposition powder only exhibits a gold color, a silver color, or a so-called metallic color obtained by coloring them, and has a simple color tone and has no depth.

Therefore, it has been attempted to mix such metal powder or metal vapor deposition powder with powder called iris powder to give an iris. However, conventionally known iris powder is a method in which a solution of synthetic resin is applied on a suitable base material by a roll coater, dried and laminated on a thin film that causes optical interference, and then the base material is peeled off. Since the obtained laminate is pulverized, such an iris powder has a robust property such as solvent resistance, chemical resistance, light resistance, weather resistance, abrasion resistance, and scratch resistance. There is a defect that the iris effect is reduced in a short period of time.

On the other hand, iris powders using zinc sulfide, antimony oxide, bismuth, cadmium sulfide or the like in place of synthetic resin are also known, but these have poor iris effect and also have fastness such as weather resistance. In addition to being scarce, the material is toxic, so there are difficulties in practical use.

[0005]

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above-mentioned problems in conventional iris powder, and is a vapor deposition comprising a combination of vapor deposition thin films of a novel metal or metal compound. By having a thin film structure, not only is the iris, which is graceful, beautiful, clear, and has a high luster, seen through, but also wear resistance, scratch resistance, chemical resistance, solvent resistance, weather resistance, etc. It is intended to provide an iris powder having excellent fastness.

[0006] In the present invention, the iris powder also includes a scaly material.

[0007]

The iris powder according to the present invention comprises:
A reflectance of 15 is provided between the transparent or semitransparent protective layer or the colored layer.
-35% low-reflectivity metal or metal compound vapor-deposited thin film, low-refractive index metal oxide vapor-deposited thin film with refractive index 0.5-2.5, and high-reflectivity metal or metal compound with reflectance 75-98% It is characterized by having a vapor-deposited thin film structure composed of a vapor-deposited thin film.

Iris powder according to a preferred embodiment of the present invention comprises:
A transparent or semitransparent functional resin layer and a transparent or semitransparent second protective layer or colored layer are provided in this order on the first transparent or semitransparent protective layer or colored layer, and
Low-reflectivity metal or metal compound vapor-deposited thin film having a reflectance of 15 to 35%, low-refractive index metal oxide vapor-deposited thin film having a refractive index of 0.5 to 2.5, and reflectance of 75 on the protective layer or colored layer of ~ 98%
Of a highly reflective metal or metal compound deposited thin film of
Of the laminated body having the vapor-deposited thin film structure of, and the third protective layer or the coloring layer thereon.

The iris powder according to another preferred embodiment of the present invention comprises a transparent or translucent functional resin layer and a transparent or translucent second layer on the first transparent or translucent protective layer or colored layer.
And a protective layer or colored layer in this order, and a low-reflectivity metal or metal compound vapor-deposited thin film having a reflectance of 15 to 35% and a refractive index of 0.5 to 5% on the second protective layer or colored layer. 2.
5 low-refractive-index metal oxide vapor-deposited thin film and reflectance 75-9
The first vapor-deposited thin film structure comprising a metal or metal compound vapor-deposited thin film having a high reflectance of 8%, a metal oxide vapor-deposited thin film having a low refractive index of 0.5 to 2.5 and a reflectance of 15 to 35%. It has the 2nd vapor deposition thin film structure which consists of a low reflective metal or a metal compound vapor deposition thin film, and also has a 3rd protective layer or a coloring layer on it.

Further, according to the present invention, such iris powder is
A release agent layer is provided on a substrate, and a low-reflectivity metal or metal compound vapor-deposited thin film having a reflectance of 15 to 35% and a refractive index of 0 to 35 is provided between a transparent or semitransparent protective layer or a colored layer thereon. A laminated body having a vapor-deposited thin film structure comprising a metal oxide vapor-deposited thin film having a low refractive index of 0.5 to 2.5 and a highly reflective metal or metal compound vapor-deposited thin film having a reflectance of 75 to 98% is manufactured. It can be obtained by peeling the substrate from the body and then crushing the remaining laminate.

The iris powder according to the present invention will be described below with reference to the drawings. First, the method for producing iris powder according to the present invention will be described. FIG. 1 is an enlarged cross-sectional view showing a laminate for producing iris powder as a preferred embodiment according to the present invention. In this laminate 1, the release agent layer 3 is formed on the base material 2. A first protective layer or colored layer 4 made of a transparent or semitransparent resin, a transparent or semitransparent functional resin layer 5, and a second protective layer made of a transparent or semitransparent resin are formed on the release agent layer 3. The layers or colored layers 6 are laminated in this order. Further, a vapor deposition thin film structure 7 made of a combination of metal vapor deposition thin films of a metal or a metal compound is formed on the second protective layer 6.

According to the present invention, this deposited thin film structure 7
The low reflective vapor deposition thin film 8, the low refractive vapor deposition thin film 9 and the high reflective vapor deposition thin film 10 are laminated in this order on the second protective layer or the coloring layer 6. Further, a third protective layer or colored layer 11 is formed on the highly reflective vapor deposited thin film 10 of the vapor deposited thin film structure 7. The substrate is usually a transparent or translucent film made of synthetic resin, and examples of such synthetic resin include polyethylene terephthalate, polyester, polyimide, polyphenylene sulfide, polyethylene naphthalate, polyamide, polycarbonate, Polypropylene, polycyclohexane terephthalate, polyethylene, polyvinyl chloride, polystyrene, polyvinylidene chloride and the like are used. Also,
Cellophane is also used. These are used alone or in a plurality of layers.

A release agent layer is formed on such a substrate. The release agent layer is not particularly limited,
For example, in addition to resins such as silicone resin and fluorine resin, waxes such as polyethylene wax, carnauba wax, paraffin wax, and beeswax, fatty acid esters and various surfactants are used. These are used alone or in combination.

The release agent layer is usually a resin as described above,
Wax or the like is dissolved in an appropriate organic solvent to give a solution, which is applied onto the above-mentioned substrate by an appropriate coating means and dried,
Although not limited, the film thickness is usually 0.1 to 1 μm.
Is formed. Examples of the coating means include a gravure coater, a reverse roll coater, an offset gravure coater, a knife doctor coater, a pipe doctor reverse coater, and a slit reverse roll coater. However, it is not limited to these.

This release agent layer is peeled off from the above-mentioned base material in the step of producing the iris powder according to the present invention as described later. The release agent layer facilitates peeling of the base material from the laminate. Further, the release material layer also has the effect of enhancing the dispersibility of the iris powder according to the present invention in a vehicle, for example, when the iris powder is dispersed in the ink composition.

As described above, the first layer is formed on the release agent layer.
Is provided with a protective layer or a colored layer. Here, the protective layer refers to a colorless, transparent or semitransparent resin layer, and the colored layer refers to a colored transparent or semitransparent resin layer. The film thickness is not particularly limited, but normally, a range of 0.1 to 1 μm is suitable. Such a first protective layer or colored layer may be made of a thermoplastic resin or a thermosetting resin. As such a thermoplastic resin or a thermosetting resin, for example, melamine resin, urea resin, melamine-epoxy copolymer resin, melamine-urea co-condensation resin, melamine-acryl co-condensation resin and other amino resins, acrylic resins, It is made of polyurethane resin, polyester resin, polyamide resin or the like. A solution of these thermoplastic resins or thermosetting resins is applied onto the release agent layer by a conventional method and dried to form a first protective layer or colored layer on the release agent layer. can do.

In the present invention, the first protective layer or the colored layer is preferably made of a thin film of an active energy ray curable resin. Since the first protective layer or colored layer constitutes the surface of the iris powder according to the present invention, abrasion resistance can be improved by using a thin film made of an active energy ray-curable resin as the first protective layer or colored layer. It is possible to obtain an iris powder which has excellent weather resistance and chemical resistance, as well as resistance and scratch resistance.

Various types of active energy ray-curable resins are already known, and any of them can be used in the present invention, but an ultraviolet ray-curable resin or an electron beam-curable resin is preferable. Mold resin is used. As the ultraviolet curable resin, for example, a compound or polymer having an acryloyl group or a methacryloyl group as an ultraviolet active group is preferably used. As such a compound or polymer, for example, methyl acrylate, ethyl acrylate, methyl methacrylate, ethyl methacrylate, neopentyl glycol diacrylate, pentaerythritol triacrylate, trimethylolpropane triacrylate, polyester acrylate, epoxy acrylate, Examples thereof include polyurethane acrylate, polyol acrylate, polyether acrylate, oligo acrylate, alkyd acrylate, and the like. In these ultraviolet curable resins, a polyacrylate as an oligomer and a monomer as a diluent thereof are usually used together. Further, if necessary, a sensitizer, a polymerization initiator, a stabilizer, a filler and the like are used in combination.

On the other hand, examples of electron beam curable resins include unsaturated polyester, polyester acrylate,
Polyacrylates such as epoxy acrylate, polyurethane acrylate, polyether acrylate, melamine acrylate, and polyol acrylate, polyester methacrylate, epoxy methacrylate, polyurethane methacrylate, polyether methacrylate,
Polymethacrylates such as melamine methacrylate and polyol methacrylate, styrene-based monomers such as styrene and α-methylstyrene, acrylic acid esters such as methyl acrylate, methoxyethyl acrylate and butyl acrylate, methyl methacrylate, methacrylic acid ethyl,
Methacrylic acid esters such as propyl methacrylate can be mentioned. These may be used alone or as a mixture.

In addition to the function of protecting the surface of the iris powder, this first protective layer or coloring layer, in particular, when it is a coloring layer, the iris seen through the iris powder according to the present invention has the color tone of this coloring layer. It mixes to give a complex and delicate color tone, and also functions as a background to give a three-dimensional depth. A transparent or semitransparent functional resin layer is formed on the first protective layer or the colored layer. The first protective layer or colored layer also has a function of an anchor layer for stably forming the functional resin layer thereon.

The functional resin layer has, for example, functionality such as fluorescent property and temperature indicating property, and is usually a fluorescent dye, a fluorescent pigment,
It is formed by printing on the above-mentioned first protective layer or colored layer with a synthetic resin printing ink containing a phosphorescent pigment or a thermochromic ink. The film thickness is not particularly limited, but is usually in the range of 0.1 to 5 μm, and 1 to 3 μm.
A range of m is preferred.

The functional resin layer may further contain an ordinary dye or pigment, an extender pigment, a pearl pigment, a metal powder pigment, etc., if necessary. Further, the resin for forming the functional resin layer may be a normal bake-curable type,
Alternatively, it may be of the active energy ray curing type as described above. A second protective layer or colored layer composed of a transparent or semi-transparent resin layer is formed on the functional resin layer, and further, a third protective layer or colored layer is formed on the second protective layer or colored layer.
A metal or metal oxide vapor deposited thin film structure is formed of layers.

The second protective layer is a residual solvent gas or a plasticizer gas released from the resin layer when the functional resin layer is formed by printing under vacuum when forming such a vapor-deposited thin film. This prevents the brushing phenomenon from occurring in the vapor-deposited thin film and enhances the adhesion of the vapor-deposited thin film. As the second protective layer or colored layer, the same resin as the above-mentioned first protective layer or colored layer is used. As with the first protective layer, the film thickness is usually suitable in the range of 0.1 to 1 μm.

In the iris powder according to the present invention, this second
A vapor-deposited thin film structure is formed on the protective layer. This vapor-deposited thin film structure is a low-reflectivity metal or metal oxide vapor-deposited thin film with a reflectance of 15 to 35% on the second protective layer or colored layer, a low refractive index with a refractive index of 0.5 to 2.5. The metal oxide vapor-deposited thin film and the highly reflective metal vapor-deposited thin film having a reflectance of 75 to 98% are vapor-deposited and laminated in this order.

First, the low-reflectivity metal or metal oxide vapor-deposited thin film having a reflectance of 15 to 35% is made of, for example, chromium, titanium, copper, cupric oxide, chromium oxide, zinc oxide or the like. For example, the chromium vapor-deposited thin film preferably has a film thickness in the range of 30 to 80 angstroms, and the copper vapor-deposited thin film preferably has a film thickness in the range of 50 to 100 angstroms.

The metal oxide vapor-deposited thin film having a low refractive index of 0.5 to 2.5 is, for example, silicon monoxide, silicon dioxide, indium oxide, indium tin oxide, titanium oxide, magnesium fluoride, calcium fluoride. Etc. Among these, a vapor-deposited thin film made of silicon oxide such as silicon monoxide or silicon dioxide is particularly preferable because it can give a more vivid iris color.

Highly reflective metal vapor-deposited thin films having a reflectance of 75 to 98% include, for example, aluminum, tin, nickel, gold,
It is made of silver or their alloys. Such a vapor-deposited thin film can be formed by, for example, a high frequency induction heating method, an electric resistance heating method, a sputtering method, an ion plating method, an electron beam heating vapor deposition method or the like according to a conventional method.

A third protective layer or colored layer is formed on this vapor-deposited thin film structure in the same manner as the above-mentioned first or second protective layer or colored layer. This third protective layer or colored layer protects the highly reflective metal vapor-deposited thin film forming the back surface of the iris powder according to the present invention, and when it is a colored layer,
The light transmitted through this third colored layer and reflected by the highly reflective metal vapor deposition thin film is colored.

The base material is peeled off from the laminate obtained as described above, and the remaining laminate is mechanically or manually crushed into powder or scale-like substances.
It is possible to obtain an iris powder as a preferred embodiment according to the present invention as shown in. For mechanical pulverization, for example, an attritor, hammer mill, ball mill, kneader, roller mill or the like can be used.

Of these, crushing using a roller mill is particularly advantageous. For example, by filling the roller mill with the laminate after peeling the above-mentioned base material, and operating the roller mill preferably under a nitrogen gas atmosphere to prevent dust explosion, the iris powder can be efficiently removed. Obtainable. Furthermore, in the case of crushing using a roller mill, it is desirable to use an appropriate amount of a surfactant together in order to prevent heat generation and explosion, and by using a surfactant in combination, crushed powder or A scaly powder can be obtained.

The particle size of the obtained crushed powder or flaky powder can be adjusted by the crushing rotation time of the roller mill. According to the present invention, the particle size depends on the application, but usually,
A range of 1 to 1000 μm is suitable. Also, the thickness is
Usually, it is in the range of 0.5 to 10 μm. Further, the particle size and the thickness are appropriately determined according to the application. For example, finishing base material for drawing foil, binder base material for cloth, base material for gold thread and silver thread, water-based paint base material, traditional industrial materials such as Buddhist altars, Buddhist altar fittings, fusuma screens, folding screens, etc. , Decorative materials for crafts, marking materials, traditional crafts such as glassware, ceramics, particle size 1 ~ 500μm, thickness 0.5 ~
Those having a thickness of 5 μm are preferably used. For industrial material applications such as metallic pigment foil base materials, iris blocking foil base materials, wallpaper foil base materials, transfer foil base materials, etc., a particle size of 1 to 10 μm,
Those having a thickness of 0.5 to 5 μm are preferably used.

Printing ink composition for shrink film processing, printing ink composition for sticker label, printing ink composition for sticking seal wand pen, printing ink composition for high-grade decoration such as spine or cover of book covers, cosmetics , Pharmaceuticals,
In the fields of soap, toiletry products, printing ink compositions for packaging decoration of foods, ink compositions for plastic nameplates, etc., those having a particle size of 1 to 10 μm and a thickness of 0.5 to 5 μm are also preferably used. In addition, food containers, medicines, cosmetics, etc., container for plastic video cassettes,
For use as a base material to be kneaded into various plastic molded products, those having a particle size of 1 to 200 μm and a thickness of 0.5 to 10 μm are preferably used. However, the particle size, thickness and use of the iris powder according to the present invention are not limited to these examples.

FIG. 2 is an enlarged sectional view showing a laminate 1 for producing iris powder as a second preferred embodiment of the present invention. In this laminated body, in the above-mentioned laminated body, the vapor deposition thin film structure 7 is used as a first vapor deposition thin film structure, and the highly reflective vapor deposition thin film 10 is refracted as a second vapor deposition thin film structure 12 by refraction. A low-refractive-index metal oxide vapor-deposited thin film 13 having a rate of 0.5 to 2.5 and a low-reflectivity metal or metal compound vapor-deposited thin film 14 having a reflectance of 15 to 35% are vapor-deposited and laminated in this order, and A transparent or semitransparent third protective layer or colored layer 15 is formed. The low refraction vapor deposition thin film and the low reflection vapor deposition thin film are formed in the same manner as described above.

As shown in FIG. 4, the base material is peeled off from the thus obtained laminate, and the remaining laminate is mechanically or manually crushed into powder or scale-like substances. Another preferred embodiment of the iris powder according to the present invention can be obtained.

[0035]

The effect of the iris powder according to the present invention will be described with reference to FIG. According to this iris powder, in general,
By combining the film thickness of the low-reflectivity vapor deposition thin film and the metal or metal oxide species constituting it and the film thickness of the low-refractive vapor deposition thin film and the metal or metal oxide species constituting it, a low-reflectivity vapor deposition thin film is obtained. Determines the color of the light reflected (this is called initial reflection), the complementary color of which is transmitted through the low-refraction vapor-deposited thin film and is reflected by the high-reflectance vapor-deposited thin film (called final reflection). On the surface of the iris powder, the iris of two colors is seen through by the initial reflected light and the final reflected light. This iris is seen through together with the colored layer 4 and the functional resin layer 5.

On the back surface of the iris powder, the highly reflective vapor-deposited thin film 1 is provided through the third protective layer or colored layer 11.
The reflected light of 0 is seen through. Table 1 shows each metal or metal compound species constituting the low-reflectance vapor deposition thin film, the low-refraction vapor deposition thin film and the high-reflectivity vapor deposition thin film, and the relationship between the film thickness and the iris color tone.

[0037]

[Table 1]

In Table 1, the circle marks of the low-reflectivity vapor deposition thin film and the high-reflectivity vapor deposition thin film indicate the kind of metal or metal compound that constitutes the vapor deposition thin film structure together with the low refractive index vapor deposition thin film. The low-reflectivity vapor-deposited thin film has a thickness of chromium of 30 to 80 Å, titanium of 50 to 70 Å, copper of 50 to 100 Å, and zinc of 30 to 80 Å. Is 400-500 Å for aluminum, 350-450 Å for nickel and 350 for tin.
~ 400 Angstroms.

For example, the low reflective vapor deposition thin film has a thickness of 30 to 8
When the chrome vapor-deposited thin film of 0 angstrom and the low-refractive-index vapor-deposited thin film is a silicon dioxide vapor-deposited thin film of 800 to 1100 angstrom in thickness, the green component of the incident light is initially reflected, and its complementary pink component is low. Since it passes through the refraction deposited thin film and is finally reflected by the highly reflective deposition thin film, an iris of two colors, green and pink, can be obtained.
The low reflection vapor deposition thin film is a chromium vapor deposition thin film having a film thickness of 30 to 80 Å, and the low refractive vapor deposition thin film is a film thickness of 600.
~ 700 angstrom silicon monoxide vapor deposition thin film, of the incident light, the blue component is initially reflected, its complementary color yellow (gold) component is transmitted through the low refraction vapor deposition thin film, the high reflective vapor deposition thin film. Since it is finally reflected at, it is possible to obtain an iris of two colors of blue and yellow (gold).

When the low-reflectivity vapor-deposited thin film is a copper vapor-deposited thin film having a film thickness of 50 to 100 Å and the low-refractive vapor-deposited thin film is a silicon dioxide vapor-deposited film having a film thickness of 700 to 800 Å, yellow ( The (gold) component is initially reflected, and the complementary green component is transmitted through the low-refraction vapor-deposited thin film and finally reflected by the high-reflectance vapor-deposited thin film, resulting in a dichromatic iris of yellow (gold) and green. Obtainable.

However, the low reflective vapor deposition thin film has a film thickness of 50 to 1
Even if a copper vapor-deposited thin film of 00 angstrom is used, if the low-refractive-index vapor-deposited thin film is a silicon monoxide vapor-deposited thin film having a film thickness of 500 to 600 angstrom, the dark blue component of the incident light is initially reflected and is a complementary color. Since the purple component passes through the low-refractive-index vapor-deposited thin film and is finally reflected by the high-reflectivity vapor-deposited thin film, a dichroic iris of dark blue and purple can be obtained.

As another example, when the low reflective vapor deposition thin film is a titanium vapor deposition thin film having a film thickness of 50 to 70 Å and the low refractive vapor deposition thin film is a silicon monoxide vapor deposition film having a film thickness of 1100 to 1300 Å. Of the incident light, the orange component is initially reflected, and the complementary red component is transmitted through the low-refraction evaporated thin film and finally reflected by the high-reflectance evaporated thin film, so the orange and red irises Can be obtained.

As described above, the film thickness of the low-reflectivity vapor deposition thin film made of chromium or copper is kept constant, and the film thickness of the silicon oxide vapor deposition thin film is kept within a certain film thickness range which produces each color tone. Thus, it is possible to obtain a bicolored iris having each color tone. However, according to the present invention, in the production of a laminate, when the film thickness of the silicon oxide vapor-deposited thin film is made nonuniform in the width direction or the longitudinal direction of the substrate, or any other direction, the iris powder is extremely elegant and beautiful. In addition, a multicolored or iridescent, highly glittering iris full of three-dimensionality is produced.

Next, in the iris powder shown in FIG. 4, on the first vapor-deposited thin film structure 7 composed of the vapor-deposited thin film having low reflectivity, the vapor-deposited thin film having low refraction and the vapor-deposited thin film having high reflectivity, ,
Similar low-refractivity vapor-deposition thin film 13 and low-reflectivity vapor-deposition thin film 1
The second vapor-deposited thin film structure 12 composed of 4 is laminated, and the third protective layer or colored layer 15 is laminated thereon. Therefore, according to such an iris powder, as a result of sharing the highly reflective vapor deposition thin film 10 included in the first vapor deposition thin film, even on the back surface of the iris powder, the same iris as the front surface is produced.
Since it is seen through the protective layer or the colored layer 15 of FIG.

In particular, according to this double-sided iris powder,
If the first and second vapor-deposited thin films are formed symmetrically with respect to the highly-reflective vapor-deposited thin film, the same dichroic iris can be seen through on the front and back surfaces. If the colored iris is seen through, and if the film thickness of either or both of the front and back surfaces of the vapor-deposited thin film is made non-uniform as described above, the iris of various colors is seen through.

As described above, the iris powder according to the present invention is, for example, a surface character picture pattern of a cosmetic box, a cover or a reverse character of a book or the like, a plastic panel, a card, a surface character picture pattern of a toy, a textile product or a cloth. It is preferably used as a binder transfer foil base material, a transfer material for a pulling foil, which is indispensable for the weft thread of Nishijin woven cloth, and the like.

[0047]

The present invention will be described below with reference to examples.
The present invention is not limited to these examples. In addition, a part shows a weight part. Example 1 1 part of silicone resin, 5 parts of rosin-modified maleic acid resin,
10 parts of cellulose acetate propionate and 25 parts of carnauba wax were added to a mixed solvent composed of 30 parts of xylene, 14 parts of methyl ethyl ketone, 10 parts of acetone and 5 parts of methyl glycol, and mixed sufficiently. This is coated on one side of a transparent polyethylene terephthalate film with a gravure coater and dried at 130 ° C to a thickness of 0.5.
A μm release agent layer was formed.

Next, polyester methacrylate 20
Parts, 15 parts of polyester acrylate and 15 parts of methyl methacrylate, together with 1 part of benzophenone sensitizer, were added to a mixed solvent consisting of 9 parts of ethyl acetate, 30 parts of methyl ethyl ketone and 10 parts of methyl isobutyl ketone, and mixed thoroughly to obtain UV light. A curable resin solution was prepared. This is coated on the release agent layer with a gravure coater,
After being dried at ℃, it was cured at a speed of 30 m / min using a high pressure mercury lamp (output 30 KW, wavelength 250 to 420 nm) to form a first protective layer having a film thickness of 0.5 μm.

Then, 1 part of the dye "Zapon Farst Yellow R" (manufactured by BASF), 1 part of "Zapon Farst Yellow GR" (manufactured by BASF), and a fluorescent dye "Fluorescence Sense Yellow 083" (manufactured by BASF). ) 8 parts, polyurethane resin 15 parts, melamine resin 15 parts and curing agent p
-Toluenesulfonic acid 4 parts with methyl ethyl ketone 31
Part, xylene, 10 parts of toluene, and 5 parts of isopropyl alcohol were added to a mixed solvent and kneaded and mixed sufficiently to prepare a printing ink. Gravure a pattern on the protective layer with this printing ink,
It was baked and cured at ˜170 ° C. to form a picture pattern printing layer having a thickness of 1.5 μm.

Melamine-urea co-condensation resin (50% solution)
30 parts of melamine-acrylic copolymer resin (50% solution), 4 parts of melamine resin (50% solution) and 6 parts of curing agent p-toluenesulfonic acid and 3 parts of methyl ethyl ketone.
It was added to a mixed solvent consisting of 0 part, 10 parts of methyl isobutyl ketone and 10 parts of isopropyl alcohol, and kneaded and kneaded sufficiently. This was applied onto the above-mentioned picture pattern printed layer by a gravure coater and baked and cured at 150 to 170 ° C. to form a second protective layer having a film thickness of 0.5 μm. This second
A vapor-deposited thin film structure was formed on the protective layer of 1. as follows. First, a low-reflective deposition thin film composed of a titanium metal deposition thin film having a film thickness of 50 to 70 angstrom was formed at a speed of 200 m / min by an electron beam heating deposition method under a vacuum of 2.5 × 10 to the minus fourth power Torr. Formed. Then, a low-refractive-index vapor-deposition thin film consisting of a silicon monoxide vapor-deposition thin film having a film thickness of 1100 to 1300 angstroms is formed by electron beam vapor deposition under a vacuum of 2.0 × 10 minus -4 torr.
Sublimation deposition was performed on the low-reflectance deposition thin film at a speed of 00 m / min. Finally, a high-reflectivity vapor deposition thin film made of an aluminum vapor deposition thin film having a thickness of 400 angstrom was formed by a high frequency induction heating vapor deposition method under a vacuum of 2.0 × 10 minus -4 torr at a rate of 400 m / min. It was formed on the refractive vapor deposition thin film.

Further, a second deposited thin film structure was laminated on the above deposited thin film structure. That is, first, in the same manner as above, a low-refractive-index vapor deposition thin film made of a silicon dioxide vapor-deposited thin film having a film thickness of 600 to 700 angstroms was formed on the high-reflectivity vapor-deposited thin film by an electron beam heating vapor deposition method at a speed of 130 m / min. Formed by. Then, a low-reflection copper thin film having a film thickness of 50 to 100 angstrom was formed on the low refractive index thin film by electron beam heating vapor deposition under a vacuum of 2.5 × 10 minus 4 torr. Vapor deposition thin film 15
It was formed at a speed of 0 m / min.

After the first and second vapor-deposited thin film structures are formed in this manner, a transparent third protective layer is laminated on the low-reflectance vapor-deposited thin film of the second vapor-deposited thin film structure. . That is, 20 parts of polyester methacrylate, 15 parts of polyester acrylate and 15 parts of methyl methacrylate together with 1 part of benzophenone sensitizer, 9 parts of ethyl acetate, 30 parts of methyl ethyl ketone and 1 part of methyl isobutyl ketone.
A UV curable resin solution was prepared by adding 0 parts of the mixed solvent and thoroughly mixing them. This is applied on the low-reflectivity vapor-deposited thin film of the second vapor-deposited thin film structure by a gravure coater and dried at 150 ° C., and then 30 m using a high pressure mercury lamp (output 30 KW, wavelength 250 to 420 nm).
It was cured at a rate of / min to form a third protective layer having a thickness of 0.5 μm.

The base material was mechanically peeled from the thus obtained laminate, and then crushed by a roller mill to obtain iris powder. When this iris powder was mixed with a silk screen pattern printing ink composition and subjected to printing,
With the background of the two-colored iris of orange and red based on the iris on the surface of the iris powder, the design pattern shining on the fluorescent dye can be seen through with a three-dimensional effect, and the blue and gold (yellow color on the back of the iris powder is It looks golden due to the reflection effect of aluminium.), And the bilateral iris on the front and back of this iris powder changes subtly by changing the perspective angle, thus, It was possible to obtain a printed surface that was extremely elegant and beautiful and had a high design effect.

Further, in order to examine the friction fastness of the surface of the iris powder, the laminate before crushing was examined with the dye fastness tester for the dyed product.
It has been shown to withstand 0 rubs and thus also have excellent wear and scratch resistance. Example 2 Polyethylene wax 10 parts, Montan wax 5 parts,
Toluene 30 parts with acrylic resin 20 parts and fluorine resin 5 parts
Parts, 10 parts of acetone, 10 parts of methyl ethyl ketone, 5 parts of methyl isobutyl ketone and 5 parts of ethyl glycol were added and mixed well. This was coated on one surface of a transparent polypropylene film with a gravure coater and dried at 160 ° C. to form a release agent layer having a thickness of 0.5 μm.

Next, 30 parts of melamine-urea co-condensation resin,
Melamine resin 15 parts, curing agent p-toluenesulfonic acid 1
Parts, dye "Orazol Yellow" (manufactured by Ciba Geigy) 4 parts and "Orazol orange" (manufactured by Ciba Geigy) 2 parts, methyl ethyl ketone 20 parts, diacetone alcohol 10 parts, methanol 10 parts and isopropyl alcohol 8 A thermosetting resin coating material was prepared by mixing well with the mixed solvent consisting of 1 part and thoroughly mixing. This is applied on the release agent layer with a gravure coater, and the temperature is 150 to 160 ° C.
And dried to form a first colored layer having a film thickness of 1 μm.

Next, 5 parts of the dye "Zapon Farst Pink B" (manufactured by BASF), 20 parts of a luminous pigment "Lumilux Green CD101b" (manufactured by Hoechst), 10 parts of polyester acrylate as an ultraviolet curable resin,
30 parts of polyurethane acrylate, 10 parts of trimethylolpropane trimethacrylate and 5 parts of benzoin sensitizer are added to a mixed solvent consisting of 10 parts of methyl ethyl ketone and 10 parts of ethyl acetate, and they are sufficiently kneaded and mixed to prepare a UV curable printing ink. did. Gravure a pattern pattern on the colored layer with this printing ink,
It is dried at 170 ° C and then a high pressure mercury lamp (output 3
Ultraviolet rays were irradiated at 0 kW) to form a 2.0 μm thick pattern print layer.

20 parts polyurethane resin, 1 acrylic resin
5 parts, phenol resin 10 parts and curing agent isocyanate compound 5 parts ethyl acetate 5 parts, methyl ethyl ketone 30 parts
Parts, 10 parts of methyl isobutyl ketone, and 5 parts of toluene were added to the mixed solvent and kneaded and mixed sufficiently. The resin composition thus prepared was applied onto the above-mentioned picture pattern printing layer by a gravure coater and baked and cured at 140 to 160 ° C. to form a second protective layer having a film thickness of 1 μm.

On this second protective layer,
A vapor deposited thin film structure was formed. First, the degree of vacuum is 2.5 × 10
A low-reflectivity vapor deposition thin film consisting of a chromium metal vapor deposition thin film having a film thickness of 30 to 80 angstrom was formed at a speed of 150 m / min by an electron beam heating vapor deposition method under a vacuum of minus 4 torr. Then, a low-refractive-index vapor deposition thin film composed of a magnesium fluoride fluoride vapor-deposited thin film was formed on the above-mentioned low-reflectivity vapor deposition thin film by an electron beam vapor deposition method under a vacuum of 2.5 to 10 torr to the fourth power. When preparing this low-refractive-index vapor-deposited thin film, the vapor deposition rate was constantly changed within the range of 150 to 200 m / min, and the film thickness was also changed within the range of 500 to 1100 angstroms in the width direction of the substrate. , And has a non-uniform film thickness.

Finally, a vacuum degree of 2.0 × 10 minus 4
A highly reflective vapor-deposited thin film composed of a nickel vapor-deposited thin film having a film thickness of 400 angstrom was formed on the low-refractive-index vapor-deposited thin film at a speed of 200 m / min by an electron beam vapor deposition method under a vacuum of 10 torr. In this way, the vapor-deposited thin film structure was laminated and formed, and then the third protective layer was laminated thereon. That is,
Urea-melamine co-condensation resin 30 parts, melamine resin 15
Parts, a curing agent p-toluenesulfonic acid 3 parts, to a mixed solvent consisting of 22 parts of methyl ethyl ketone, 10 parts of diacetone alcohol, 10 parts of methanol and 10 parts of isopropyl alcohol, mixed well and coated with a gravure coater. After baking and curing at 150 to 160 ° C., a third protective layer having a film thickness of 1 μm was laminated.

The above-mentioned substrate was mechanically continuously peeled from the thus obtained laminate, and the remaining laminate was crushed by a roller mill to obtain a scaly material having an average particle diameter of 2 mm, which was further crushed. Thus, scaly iris powder having an average particle diameter of 200 μm was obtained. The surface of this iris powder exhibits a highly bright multicolored iris and the back surface exhibits a silver color. More specifically, since the low-refractivity vapor-deposited thin film has a non-uniform thickness, various irises ranging from dark blue and purple irises to orange and red irises can be seen through.
On the other hand, since the silver color is seen through from the back side, and the coloring of the colored layer is added to this, a very complicated and delicate colorful iris is seen through as a whole.

Then, this iris powder was mixed with a silk screen printing ink composition, and a picture pattern was printed on a transfer material made of a synthetic resin. The picture pattern was three-dimensional with a colorful iris background. Was seen through. Further, when the design pattern was irradiated with ultraviolet rays, the functional colored layer excited and emitted the design pattern, resulting in a more three-dimensional effect, and a brilliant, bright and colorful multicolored iris was seen through.

Further, as a solvent resistance test of iris powder, iris powder was tested with a ketone solvent such as methyl ethyl ketone or acetone, an aromatic hydrocarbon solvent such as toluene or xylene,
After immersion for 15 minutes in alcoholic solvents such as methanol and isopropyl alcohol, no change was observed in the iris. Also, as described above,
The surface of the laminate before crushing was subjected to a friction fastness test, and as a result, it was shown that it can withstand 150 times of abrasion with a cloth, and thus has excellent abrasion resistance and scratch resistance. Example 3 Carnauba wax 10 parts, synthetic wax 5 parts, fatty acid amide 5 parts and maleic acid resin 20 parts xylene 30 parts,
It was added to a mixed solvent consisting of 15 parts of toluene, 10 parts of diacetone alcohol and 5 parts of methyl glycol, and mixed sufficiently. This was coated on one surface of a transparent polystyrene film with a gravure coater and dried at 150 to 160 ° C. to form a release agent layer having a thickness of 0.5 μm.

Next, 30 parts of polyurethane acrylate,
20 parts of epoxy acrylate and 20 parts of neopentyl glycol diacrylate were added together with 1 part of acetophenone-based sensitizer to a mixed solvent consisting of 19 parts of acetone and 10 parts of ethyl acetate and mixed sufficiently to prepare an ultraviolet curable resin solution. did. This is applied onto the release agent layer with a gravure coater and dried at 150 to 170 ° C., and then a high pressure mercury lamp (output 30 KW, wavelength 250 to 420 n).
m) was used to form a first protective layer having a film thickness of 1 μm.

Then, 5 parts of a so-called temperature indicating ink "Metamocolor" (manufactured by Pyrototo Ink Co., Ltd.), which reversibly changes color in the temperature range of 0 to 35 ° C, 20 parts of acrylic resin, urea-melamine. 10 parts of co-condensation resin and 10 parts of polyurethane polyol together with 5 parts of isocyanate compound as a curing agent were added to a mixed solvent consisting of 30 parts of methyl ethyl ketone, 5 parts of ethyl cellosolve and 15 parts of xylene, and sufficiently kneaded and mixed to obtain thermosensitive printing. An ink was prepared. Using this printing ink, a functional resin layer was gravure printed on the protective layer and baked and cured at 150 to 170 ° C. to form a functional colored layer having a thickness of 2 μm.

As a UV curable resin, 10 parts of polyethyl acrylate, 30 parts of urethane acrylate and 10 parts of methyl methacrylate and 1 part of acetophenone sensitizer were mixed with 10 parts of acetone, 25 parts of methyl ethyl ketone and 14 parts of ethyl acetate to prepare a mixed solvent. In addition, kneading and kneading were performed sufficiently. This UV-curable resin composition is applied onto the functional resin layer by a gravure coater and the solvent is dried at 150 to 170 ° C., and then a high pressure mercury lamp (output 30 KW,
It was irradiated with ultraviolet rays at a wavelength of 250 to 420 nm and cured to form a second protective layer having a film thickness of 1 μm.

On this second protective layer,
A vapor deposited thin film structure was formed. First, the degree of vacuum is 3.0 to 5.
A low-reflectivity vapor deposition thin film consisting of a zinc metal vapor deposition thin film having a thickness of 30 to 80 angstrom was formed at a speed of 250 m / min by an electron beam vapor deposition method under a vacuum of 0 × 10 −4 torr. Then, the degree of vacuum is 2.5 x 10 minus 4
Film thickness of 500 ~ by electron beam evaporation method under vacuum
A low-refractive-index vapor-deposited thin film consisting of a 600 angstrom calcium fluoride vapor-deposited thin film was vapor-deposited on the low-reflectance vapor-deposited thin film at a speed of 130 m / min.

Finally, a vacuum degree of 2.0 × 10 minus 4
High-frequency induction heating vapor deposition under vacuum
One coil cuboid crucible method, film thickness 350
A highly reflective vapor deposited thin film consisting of an Angstrom tin vapor deposited thin film was formed on the low refractive index vapor deposited thin film at a speed of 250 m / min. Next, a third protective layer was formed on this vapor-deposited thin film structure as follows. That is, 25 parts of polyester acrylate, 23 parts of polyol acrylate, 20 parts of oligoacrylate and 1 part of benzoin-based sensitizer were used as "Orazol Yellow" (manufactured by Ciba Geigy).
1.5 parts and 0.5 parts of "Orazol Orange" (manufactured by Ciba-Geigy Co., Ltd.) and 19 parts of methyl ethyl ketone and 10 parts of ethyl acetate were added to a mixed solvent and thoroughly mixed to give an ultraviolet curable resin composition. Prepared. This resin composition was applied by a gravure coater and dried at 150 to 170 ° C., and then a high pressure mercury lamp (output 30 kW, wavelength 25
At 0-420 nm), ultraviolet rays were irradiated to cure and form a transparent yellow second colored layer having a film thickness of 1 μm.

The substrate was mechanically continuously peeled from the thus obtained laminate, and the remaining laminate was crushed with a roller mill to obtain scaly iris powder having an average particle diameter of 2 mm. Furthermore, crush this iris powder to obtain an average particle size of 100μ.
m scale flaky iris powder was obtained. The surface of each of these iris powders is a highly glittering dichromatic iris, and the back surface is gold.
The iris powder thus obtained is blended with a silk screen printing ink to form a pattern on a binder-treated cloth product, for example, polyester tricot, nit product, woven fabric, nonwoven fabric, or binder-treated leather product. When printed, this pattern shows a complex delicate color tone with a mixture of dark blue and purple dichroic iris and gold according to the change of the transmission angle, and moreover, the temperature indicating ink in the functional resin layer is It changes color vividly depending on the temperature.

[Brief description of drawings]

FIG. 1 is an enlarged cross-sectional view showing a laminate for producing iris powder as one preferred embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view showing an iris powder according to the present invention obtained from the laminate of FIG.

FIG. 3 is an enlarged cross-sectional view showing a laminate for producing iris powder as another preferable embodiment according to the present invention.

4 is an enlarged cross-sectional view showing an iris powder according to the present invention obtained from the laminate of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Laminated body 2 ... Base material 3 ... Release agent layer 4 ... 1st protective layer or colored layer 5 ... Functional resin layer 6 ... 2nd protective layer or colored layer 7 ... Vapor deposition thin film structure 8 ... Low reflection Vapor deposition thin film 9 ... Low refractive index vapor deposition thin film 10 ... Highly reflective vapor deposition thin film 11 ... Third protective layer or coloring layer 12 ... Second vapor deposition thin film structure 13 ... Second low refractive index vapor deposition thin film 14 ... Second Low-reflectivity vapor-deposited thin film 15 ... Third protective layer or colored layer

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location C09D 11/00 PSW // B32B 33/00 7148-4F (56) Reference JP-A 61-19826 (JP, A) JP 53-56268 (JP, A) JP 57-70647 (JP, A) JP 52-88140 (JP, A) JP 63-17043 (JP, A)

Claims (15)

[Claims] 1. A chrome having a thickness of 30 to 80 angstroms and a thickness of 5 between a transparent or semitransparent protective layer or a colored layer.
Titanium having a thickness of 0 to 70 Å and a thickness of 30 to 80
Reflectance of 15 to 35 selected from Angstrom zinc
% Low-reflective metal deposition thin film, film thickness 500 to 1300
Ngstrom silicon monoxide, film thickness 600-1100
Angstrom silicon dioxide, film thickness 600-700
Angstrom magnesium fluoride and film thickness 500
~ 600 angstrom calcium fluoride
Vapor-deposited thin film of a low-refractive-index metal compound vapor-deposited film having a refractive index of 0.5 to 2.5 and a highly reflective metal vapor-deposited thin film having a reflectance of 75 to 98% selected from aluminum, nickel and tin. the structure possess in this order, the particle size from 1 to 1000
Iris powder having a thickness of 0.5 μm and a thickness of 0.5 to 10 μm . 2. The iris powder according to claim 1, wherein the protective layer or the coloring layer is made of an active energy ray curable resin. 3. A transparent or semitransparent functional resin layer and a transparent or semitransparent second protective layer or colored layer are provided in this order on the first transparent or semitransparent protective layer or colored layer. Together with a film thickness of 30 to 80 on the second protective layer or colored layer.
Angstrom chrome, film thickness 50-70 angstrom
ROHM titanium and film thickness of 30-80 Å
Low-reflectivity metal with reflectance of 15-35% selected from zinc
Vapor-deposited thin film, 500-1300 angstrom thick
Silicon oxide, film thickness 600-1100 angstrom
Silicon dioxide, film thickness 600-700 angstrom
Magnesium fluoride and film thickness 500-600 Å
Refractive index 0.5 ~ selected from ROHM's calcium fluoride
Aluminum compound vapor deposition thin film with low refractive index of 2.5
75-98% reflectance selected from aluminum, nickel and tin
Of having a first deposition thin film structure comprising a highly reflective metallized film, Ri Do a laminate having a third protective layer or colored layer thereon, the particle diameter 1 to 1000 m, the thickness 0.5 ~ 1
An iris powder characterized by having 0 μm . 4. The iris powder according to claim 3, wherein the first, second and / or third protective layers or colored layers are thin films made of an active energy ray curable resin. 5. The iris powder according to claim 3, wherein the functional resin layer contains a fluorescent dye or a pigment. 6. The iris powder according to claim 3, wherein the functional resin layer contains a thermosensitive ink. 7. A transparent or semitransparent functional resin layer and a transparent or semitransparent second protective layer or colored layer are provided in this order on the first transparent or semitransparent protective layer or colored layer. Together with a film thickness of 30 to 80 on the second protective layer or colored layer.
Angstrom chrome, film thickness 50-70 angstrom
ROHM titanium and film thickness of 30-80 Å
Low-reflectivity metal with reflectance of 15-35% selected from zinc
Vapor-deposited thin film, chromium, film thickness 50-70 angstrom
Titanium and 30-80 Å thick zinc?
A low-reflectivity metal vapor-deposited thin film having a reflectance of 15 to 35% selected from the above , and a film thickness of 500 to 1300 angstroms of monoxide.
Ion dioxide with a film thickness of 600 to 1100 angstroms
Silicon, film thickness of 600-700 angstrom
Magnesium and film thickness 500-600 angstrom
Refractive index 0.5 to 2.5 selected from calcium fluoride
Of low-refractive-index metal compound vapor-deposited thin films and aluminum, ni
A first vapor-deposited thin film structure comprising a highly reflective metal vapor-deposited thin film having a reflectance of 75 to 98% selected from Tsukel and tin, and a low-refractive-index metal compound vapor-deposited thin film having a refractive index of 0.5 to 2.5. It has a second vapor-deposited thin film structure composed of a low-reflectivity metal vapor-deposited thin film having a rate of 15 to 35%, and further comprises a laminate having a third protective layer or a coloring layer thereon, and has a grain size of 1 to 1. 1
Iris powder having a thickness of 000 μm and a thickness of 0.5 to 10 μm . 8. The iris powder according to claim 7, wherein the first, second and / or third protective layers or colored layers are thin films made of an active energy ray curable resin. 9. The iris powder according to claim 7, wherein the functional resin layer contains a fluorescent dye or a pigment. 10. The iris powder according to claim 7, wherein the functional resin layer contains a thermosensitive ink. 11. A first protective layer of transparent or semi-transparent or colored layer second protective layer or a colored layer of transparent or translucent functional resin layer and a transparent or translucent over to closed in this order Together with a film thickness of 30 to 8 on the second protective layer or colored layer.
0 angstrom chrome, film thickness 50-70 angstrom
Tromium titanium and film thickness 30-80 angstrom
Low reflectivity gold with a reflectivity of 15-35% selected from zinc
Chemical vapor deposition thin film, chrome, film thickness 50-70 angstrom
Titanium and zinc with a thickness of 30-80 angstroms
A low-reflectivity metal vapor deposition thin film having a reflectance of 15 to 35%, and a film thickness of 500 to 1300 angstroms.
Silicon, a diacid with a film thickness of 600 to 1100 angstroms
Silicon nitride, film thickness of 600-700 angstrom
Magnesium oxide and film thickness 500-600 angstrom
Refractive index selected from calcium fluoride of 0.5 to 2.
5, a low-refractive-index metal compound vapor-deposited thin film and aluminum,
A first vapor-deposited thin film structure comprising a highly reflective metal vapor-deposited thin film having a reflectance of 75 to 98% selected from nickel and tin.
And further has a third protective layer or colored layer thereon
It is composed of a laminated body and is vapor-deposited with a metal compound having a low refractive index.
The thin film is formed to have a non-uniform thickness and
Has a particle size of 1 to 1000 μm and a thickness of 0.5 to 10 μm.
Iris powder characterized by being. 12. The iris powder according to claim 11, wherein the first, second and / or third protective layer or colored layer is a thin film made of an active energy ray curable resin. 13. The iris powder according to claim 11, wherein the functional resin layer contains a fluorescent dye or a pigment. 14. The iris powder according to claim 11, wherein the functional resin layer contains a thermosensitive ink. 15. A release agent layer is provided on a base material, and a film thickness of 30 to 80 is provided between the transparent or semitransparent protective layer or the colored layer on the release agent layer.
Angstrom chrome, film thickness 50-70 angstrom
ROHM titanium and film thickness of 30-80 Å
Low-reflectivity metal with reflectance of 15-35% selected from zinc
Vapor-deposited thin film, 500-1300 angstrom thick
Silicon oxide, film thickness 600-1100 angstrom
Silicon dioxide, film thickness 610-700 angstrom
Magnesium fluoride and film thickness 500-600 Å
Refractive index 0.5 ~ selected from ROHM's calcium fluoride
Aluminum compound vapor deposition thin film with low refractive index of 2.5
75-98% reflectance selected from aluminum, nickel and tin
And of producing a laminate having a vapor deposition thin film structure made of highly reflective metal vapor Chakuhakumaku, after peeling off the substrate from the laminate, crushed, particle size 1 to 1000 m, the thickness 0.5-1
A method for producing iris powder, which is characterized in that it is 0 μm .