JP2883412B2 - Iris-colored laminate and gold-silver thread - Google Patents

Description

The present invention relates to an iris laminate and a gold-silver thread.

[Problems to be Solved by the Related Art] Hitherto, an iris gold-silver color obtained by slitting an iris laminate obtained by providing an iris compound thin film layer such as zinc sulfide on a polyester film or the like has been known. .

However, such conventional iris-colored gold-silver yarns exhibit a monotonous iris color and are inferior in luster, and are inferior in practical characteristics as gold-silver yarns (resistance to processing such as bleaching, dyeing, scouring, or washing resistance). There was such a problem.

In view of the above, the present invention provides an iris laminate having excellent iris color rich in color and extremely excellent luster, and also excellent in practical characteristics, and in particular, an iris gold-silver thread.

[Means for Solving the Problems] The present invention provides a transparent iris layer formed by laminating an iris compound thin film layer and a transparent resin layer having an uneven thickness on one surface of a transparent plastic film. Wherein the iris layer is provided on the plastic film via a layer laminated in the order of a transparent resin undercoat layer and a transparent first inorganic protective layer; The present invention relates to an iris laminate comprising a transparent resin overcoat layer provided on a side opposite to the first inorganic protective layer via a transparent second inorganic protective layer.

Further, the present invention relates to an iris-colored gold-silver thread obtained by slitting the iris-colored laminate.

[Operation and Examples] The iris laminate of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic partial sectional view showing an embodiment of the iris-colored laminate of the present invention. In FIG. 1, (1) is a transparent plastic film, on one side of which a transparent resin undercoat layer (2) and a transparent first inorganic protective layer (3a) are provided in this order, and on which an iris layer (4) is provided. ) Is provided.
The iris layer (4) of this embodiment is obtained by laminating a transparent resin layer (4b) having an uneven thickness on the iris compound thin film layer (4a). Further, a transparent resin overcoat layer (5) is provided on the resin layer (4b) via a transparent second inorganic protective layer (3b).

FIG. 2 is a schematic partial sectional view showing another embodiment of the iris-colored laminate of the present invention. In the iris laminate shown in FIG. 2, a transparent resin undercoat layer (2) and a transparent first inorganic protective layer (3a) are provided in this order on one side of a plastic film (1), and an iris layer is further provided thereon. Although (4) is provided, the iris layer (4) of this embodiment is formed on a transparent resin layer (4b) having an uneven thickness and an iris compound thin film layer (4).
a), and a transparent resin overcoat layer (5) is provided on the thin film layer (4a) via a transparent second inorganic protective layer (3b).

In the iris laminate of the present invention, iris is obtained on both the plastic film (1) side and the opposite side.

In the present invention, since the iris layer (4) has a configuration in which the iris compound thin film layer (4a) and the transparent resin layer (4b) having an uneven thickness are laminated, the iris color is rich in color and gloss. Is also excellent.

By providing the iris layer (4) on the plastic film (1) via the resin undercoat layer (2) and the first inorganic protective layer (3a), the iris layer (4) and the plastic film (1) The adhesiveness between them is improved, the resistance to processing such as bleaching, dyeing and scouring or the washing resistance is extremely good, and the deterioration or disappearance of the iris color due to these treatments is prevented. This effect is particularly remarkable in the embodiment in which the iris compound thin film layer (4a) is directly laminated on the first inorganic protective layer (3a) as shown in FIG.

Further, since the first inorganic protective layer (3a) has a higher refractive index than the resin layer, the first inorganic protective layer (3a) has the effect of increasing the color of the iris layer (4), making it more powerful, and improving the gloss.
The conventionally known iris-colored laminate in which an overcoating resin layer is laminated on a thin film layer of zinc sulfide or the like has a drawback in that the gloss and the color developability vary greatly depending on the thickness of the thin film layer. (1) By laminating the inorganic protective layer (3a), a high refractive index can be obtained irrespective of the thickness of the iris compound thin film layer, so that there is also an effect of improving gloss and coloring.

Further, as shown in FIGS. 1 and 2, on the side of the iris layer (4) opposite to the first inorganic protective layer (3a), a transparent resin overcoat layer (5) is provided via a second inorganic protective layer (3b). So bleach,
Iris layer (4) for processing such as dyeing and scouring and washing
Is sufficiently protected, and exhibits extremely excellent performance in the above-mentioned processing and washing resistance in combination with the effects of the undercoat layer and the first inorganic protective layer. When the iris compound thin film layer (4a) is on the resin layer (4b) having an uneven thickness as in the case of FIG. 2, the second inorganic protective layer is coated with the iris compound thin film layer and the transparent resin overcoat. It also has the effect of improving the adhesion to the layer (5).

Furthermore, the second inorganic protective layer (3b) is the first inorganic protective layer (3a)
In addition, the iris laminate of the present invention also has the effect of further improving the color development and gloss.

The transparent plastic film (1) used in the present invention is not particularly limited, and films conventionally used for applications such as gold and silver yarns, for example, polyester, polyamide, polyamideimide, polyethylene, polypropylene, cellulose acetate, polycarbonate, polychloride Resin films such as vinyl and fluororesin are appropriately used. The thickness of transparent plastic film is usually 4-100
It is appropriately selected from the range of μm, more preferably from 6 to 50 μm. In the case of the use of gold and silver yarns, the mechanical properties of the transparent plastic film almost directly affect the mechanical properties of the gold and silver threads to determine the weaving property and the texture.

A coloring agent such as a dye and a pigment, a plastic antioxidant such as an ultraviolet absorber and an antioxidant, and an antistatic agent can be added to the present plastic film as long as the transparency and flexibility are not lost.

In the present invention, the thickness of the transparent resin undercoat layer (2) is usually in the range of 0.01 to 5 μm, and more preferably 0.02 to 3 μm.
Is selected from the range. Transparent resin undercoat layer thickness is 0.01μm
If it is less than 1, the resistance to washing, bleaching, dyeing, scouring, etc. is poor, which is not preferable. On the other hand, if it exceeds 5 μm, it becomes undesirably rigid as a whole in applications such as gold and silver yarns and lacks in weaving properties and texture.

As the resin for forming the transparent resin undercoat layer (2), any of various resins such as a thermoplastic resin, a thermosetting resin, an electron beam curable resin, and an ultraviolet curable resin can be used. For example, an acrylic resin , Styrene resin, acrylic-styrene copolymer, vinyl chloride resin, vinyl acetate resin, vinyl chloride-vinyl acetate copolymer, polyvinyl butyral, polycarbonate, nitrocellulose, cellulose acetate, urethane resin, urea resin, A melamine-based resin, a urea-melamine-based resin, an epoxy-based resin, an alkyd-based resin, an aminoalkyd-based resin, a rosin-modified maleic resin, or a mixture thereof is preferably used. Particularly, a curable resin is preferable.

The transparent resin undercoat layer (2) is formed by, for example, a gravure coating method using an organic solvent solution or an aqueous solution of the resin,
The coating is performed by applying a uniform thickness by a normal coating method such as a spray coating method and drying (curing in the case of a thermosetting resin, an electron beam curable resin, an ultraviolet curable resin or the like).

The transparent first inorganic protective layer (3a) in the present invention is a transparent thin film layer of an inorganic substance capable of improving the adhesion between the resin undercoat layer (2) and the iris layer (4). oxide _{[SiO, SiO 2, SiOx (x} = 0.3~2, inter alia 0.
7 to 1.8)], aluminum oxide [Al ₂ O ₃ , Al ₂ O _x (x =
1-3)] and the like are suitable. As described above, the thin film layer of these inorganic substances also has the effect of enriching the color of the iris layer (4) and further improving the gloss. Further, since the silicon oxide thin film layer itself exhibits an iris color, the obtained laminate has a better iris color.

The first inorganic protective layer (3a) has a uniform thickness usually in the range of 25 to 1000 nm, more preferably in the range of 30 to 500 nm. When the thickness of the protective layer (3a) is less than 25 nm, the effect of preventing the iris color from deteriorating for various treatments is not sufficient. On the other hand, when the thickness exceeds 1000 nm, the transparency is reduced or cracks and the like are liable to occur. It is not preferable because the resistance is lowered.

The formation of the first inorganic protective layer (3a) may be performed using a corresponding evaporation source material and a thin film forming method of an ordinary evaporation method such as a resistance heating method, a high-frequency induction heating method, and an electron beam heating method. As the evaporation source material, Si is used for the silicon protective layer, and Si is used for the silicon oxide protective layer.
SiO or SiO ₂ or a mixture thereof, and which was further press molding such as a mixture of Si and SiO _2, in the case of aluminum oxide protective layers such as those obtained by press molding the Al ₂ O ₃ is used as appropriate.

The thickness of the first inorganic protective layer (3a) is a value measured by a quartz crystal resonator film thickness monitor.

Examples of the iris compound thin film layer (4a) in the present invention include thin film layers of zinc sulfide, bismuth oxide, antimony oxide, titanium oxide, silicon oxide, zinc oxide, magnesium fluoride, potassium fluoride, cryolite, and the like. Zinc sulfide, bismuth oxide (BiO, Bi ₂ O ₃ , Bi) have excellent iris colors and excellent resistance to the above-mentioned various treatments.
₂ O ₄ , Bi ₂ O ₅ , Bi ₂ O _x (x = 2 to 5)] and antimony oxide [Sb ₂ O ₃ , Sb ₂ O ₄ , Sb ₂ O ₅ , Sb ₂ O _x (x = 2 to 5) )] Is preferred.

The iris compound thin film layer (4a) has a uniform thickness usually in the range of 5 to 100 nm, more preferably in the range of 20 to 80 nm. If the thickness of the thin film layer is less than 5 nm, iris gloss cannot be obtained, which is not preferable. On the other hand, if it exceeds 100 nm, the iris gloss is rather poor,
Moreover, it is not preferable because cracks are easily formed and resistance to treatment such as scouring is reduced.

The formation of the iris compound thin film layer (4a) may be performed using a corresponding evaporation source material by a normal evaporation method thin film forming method such as a resistance heating method, a high-frequency induction heating method, or an electron beam heating method.

The evaporation source material for forming the iris compound thin film layer (4a) is not particularly limited. For example, as an evaporation source material for forming a zinc sulfide thin film layer, any material obtained by press-molding a powder having a purity of zinc sulfide (ZnS) of 70% by weight or more can be used as appropriate. Is preferably used. As an evaporation source material for forming a bismuth oxide thin film layer, any material can be used as appropriate as long as the powder having a purity of bismuth oxide of 80% by weight or more is press-molded. Are more preferably used. As the evaporation source material for forming the antimony oxide thin film layer, any material may be used as long as it is formed by pressing a powder having a purity of at least 80% by weight of antimony oxide. Is more preferably used.

The film thickness of the iris compound thin film layer is a value measured by a crystal oscillator film thickness monitor.

Resin layer (4b) with non-uniform thickness is usually 0.01-5μ
m, more preferably in the range of 0.02 to 3 μm. If the thickness of the resin layer is less than 0.01 μm, almost no iris gloss can be obtained, which is not preferable. 5 μm
On the other hand, the iris gloss is inferior, and the use of gold and silver yarns is unfavorable because it becomes rigid as a whole and lacks in weaving properties and texture. Resin layer (4b)
Is preferably about 0.1 to 1 μm [the difference between the thick and thin portions of the resin layer (hereinafter, referred to as non-uniformity)]. If the degree of non-uniformity is less than 0.1 μm, it is difficult to obtain a monochromatic and rich iris color, while 1 μm
If the amount exceeds the above range, the color development becomes pale, which is not preferable. The non-uniform thickness cycle (meaning the distance between adjacent thick portions or the distance between adjacent thin portions) corresponds to the density of the iris pattern and is usually preferably about 0.5 to 20 cm, but is limited to this range. Not something. The period may be constant or not constant. The non-uniform pattern is usually a stripe pattern, but is not limited thereto.

As the resin for forming the transparent resin layer (4b) having a non-uniform thickness, any of various resins such as a thermoplastic resin, a thermosetting resin, an electron beam curable resin, and an ultraviolet curable resin can be used. For example, arylic resin, styrene resin, acryl-styrene copolymer, vinyl chloride resin,
Vinyl acetate resin, vinyl chloride-vinyl acetate copolymer,
Polyvinyl butyral, polycarbonate, nitrocellulose, cellulose acetate, urethane resin, urea resin, melamine resin, urea-melamine resin, epoxy resin, alkyd resin, amino alkyd resin, rosin-modified maleic resin, etc. Alternatively, a mixture is preferably used.

The transparent resin layer (4b) having a non-uniform thickness is formed by applying an organic solvent solution or an aqueous solution of the resin to a non-uniform thickness by a normal coating method such as a gravure coating method or a spray coating method. And drying (in the case of a thermosetting resin, an electron beam curable resin, an ultraviolet curable resin, etc., curing).

The transparent second inorganic protective layer (3b) of the present invention is an iris layer (4)
And a transparent thin film layer of an inorganic substance capable of improving the adhesion between the transparent overcoat layer and the transparent inorganic overcoat layer. The usable material and the coating method are the same as those in the case of the first inorganic protective layer (3a). The material of the first inorganic protective layer and the material of the second inorganic protective layer need not necessarily be the same. The preferred thickness range is the same as that in the case of the first inorganic protective layer. By providing the second inorganic protective layer (3b), the adhesion between the transparent resin overcoat layer (5) and the iris layer (4) is improved, and the iris color of the obtained laminate is only the first inorganic protective layer. Better than the ones. In addition, processing resistance and washing resistance are also improved. The effect is particularly remarkable when the iris compound thin film layer (4a) is in a layer configuration in contact with the second inorganic protective layer (3b).

In the present invention, the thickness of the transparent resin overcoat layer (5) is usually 0.1.
It is selected from the range of 01 to 5 µm, more preferably the range of 0.02 to 3 µm. If the thickness of the transparent resin overcoat layer is less than 0.01 μm, the resistance to each of the above-mentioned treatments is not sufficient, which is not preferable. On the other hand, if it exceeds 5 μm, it is unfavorable because it becomes rigid as a whole in applications such as gold and silver threads and lacks in weaving properties and texture.

As a resin for forming the transparent resin overcoat layer (5), a thermoplastic resin, a thermosetting resin, an electron beam curable resin,
Any of various resins such as an ultraviolet curable resin can be used, for example, an acrylic resin, a styrene resin, an acryl-styrene copolymer, a vinyl chloride resin, a vinyl acetate resin, a vinyl chloride-vinyl acetate copolymer, Polyvinyl butyral, polycarbonate, nitrocellulose, cellulose acetate, urethane resin, urea resin, melamine resin, urea-melamine resin, epoxy resin, alkyd resin, amino alkyd resin, rosin-modified maleic resin, etc. Alternatively, a mixture is preferably used. In particular, a curable resin is preferably used.

The transparent resin overcoat layer (5) is formed by applying an organic solvent solution, an aqueous solution, or the like of the resin to a non-uniform thickness by a normal coating method such as a gravure coating method or a spray coating method, and then drying (heating). Curable resin,
It is carried out by curing (in the case of an electron beam curable resin, an ultraviolet curable resin or the like).

The transparent resin undercoat layer (2), the transparent resin layer (4b) having a non-uniform thickness, and the transparent resin overcoat layer (5) are made of a dye and / or a pigment unless the transparency is impaired. It may be colored as appropriate. Further, an antistatic agent, an antioxidant, an ultraviolet absorber and the like can be added.

In the present invention, the two laminates may be laminated by using an adhesive with two plastic films (1) facing inside or the other side facing inside to form a two-ply structure. When the plastic film (1) is formed in a two-ply configuration with the opposite side inside, a gold and silver thread that can withstand georgette processing as well as scouring processing can be obtained.

As the adhesive, an adhesive of a urethane resin type, an epoxy resin type, a polyester resin type, an acrylic resin type, a synthetic rubber type or the like is appropriately used.

The iris-colored laminate of the present invention is used for applications such as packaging materials, labels, sequins, posters, buttons, bendants, and various other decorative materials, and is particularly suitably used for gold and silver yarns.

An iris-colored gold-silver thread is obtained by slitting the iris-colored laminate to an appropriate width, for example, a width of 0.15 to 2 mm.

 Next, the present invention will be described with reference to examples.

Example 1 One side of a 12 μm thick polyethylene terephthalate film was composed of 100 parts of thermosetting acrylic resin (parts by weight, the same applies hereinafter), 5 parts of polyisocyanate, 50 parts of toluene, 30 parts of xylene, and 20 parts of n-butyl alcohol. A transparent resin coating is applied with a gravure coater and dried, and cured at 160 ° C for 20 seconds to form a 0.2 μm-thick transparent resin undercoat layer, on which Si and SiO ₂ are pressed. The formed pellet was evaporated by a resistance heating method as an evaporation source to form a silicon oxide first protective layer having a uniform thickness of 40 nm, on which a 99% pure zinc sulfide (ZnS) powder was press-formed. The pellets are evaporated by a resistance heating method as an evaporation source to form a zinc sulfide thin film layer having a uniform thickness of 40 nm, on which 50 parts of thermosetting acrylic resin, 5 parts of polyisocyanate, and toluene 50 parts, 30 parts of xylene,
A transparent resin coating composed of 20 parts of n-butyl alcohol is applied by a gravure coater, dried and cured under the condition of 160 ° C. × 20 seconds to obtain a transparent resin layer having an uneven thickness (average thickness 0.5).
μm, maximum thickness 0.8μm, minimum thickness 0.2μm, thickness non-uniformity 0.6μm, non-uniform period 20mm, parallel stripe pattern)
Was formed. Further, a second protective layer made of silicon oxide having a uniform thickness of 40 nm is formed by vapor deposition by a resistance heating method using a pellet formed by press-molding Si and SiO ₂ as an evaporation source, and a thermosetting acrylic resin is further formed thereon. A transparent resin coating consisting of 50 parts, 5 parts of polyisocyanate, and 20 parts of toluene is applied by a gravure coater and dried, cured at 160 ° C. for 20 seconds, and on a transparent resin having a uniform thickness of 0.2 μm. By forming a coating layer, a laminate having a beautiful iris color was obtained.

The obtained laminate was micro-slit into 120 cuts (0.252 mm width) to obtain iris-colored gold and silver threads.

Example 2 Example 1 was the same as Example 1 except that a bismuth oxide thin film layer having a uniform thickness was formed using bismuth oxide (Bi ₂ O ₃ ) as an evaporation source instead of the zinc sulfide thin film layer. To obtain an iris-colored laminate and an iris-colored gold-silver thread.

Example 3 In Example 1, an antimony oxide thin film layer having a uniform thickness was formed by using antimony oxide (Sb ₂ O ₃ ) as an evaporation source instead of the zinc sulfide thin film layer.
In the same manner as in the above, an iris-colored laminate and an iris-colored gold-silver thread were obtained.

Example 4 In Example 1, a rainbow was formed in the same manner as in Example 1 except that a silicon protective layer having a uniform thickness of 30 nm was formed using silicon as an evaporation source instead of the silicon oxide protective layer. A colored laminate and an iris-colored gold-silver thread were obtained.

Example 5 In Example 1, an aluminum oxide (Al ₂ O ₃ ) was used as an evaporation source in place of the silicon oxide protective layer, and the thickness was 50 n.
An iris laminate and an iris gold-silver thread were obtained in the same manner as in Example 1 except that an aluminum oxide protective layer having a uniform thickness of m was formed.

Example 6 The laminate 2 obtained in Example 1 was bonded with a polyethylene terephthalate film inside through a urethane resin-based adhesive layer having a thickness of 2 μm to obtain a two-ply iris-colored laminate.

Further, this laminate was strotted in the same manner as in Example 1 to obtain an iris-colored gold-silver thread.

Example 7 A resin undercoat layer and a silicon oxide protective layer were sequentially formed on one side of a polyethylene terephthalate film having a thickness of 12 μm in the same manner as in Example 1, and then 100 parts of a thermosetting acrylic resin, 5 parts of a polyisocyanate, Toluene 50
Parts, 30 parts of xylene, and 20 parts of n-butyl alcohol were coated with a gravure coater and dried at 160 ° C.
Transparent resin layer having an uneven thickness by curing under conditions of × 20 seconds (average thickness 0.6 μm, maximum thickness 1 μm, minimum thickness 0.2
μm, thickness non-uniformity 0.8 μm, non-uniform period 30 mm, parallel stripe pattern), and then press-formed a pellet of 99% pure zinc sulfide powder as a vaporization source by resistance heating, A zinc sulfide thin film layer having a uniform thickness of 40 nm was formed. Further, a second protective layer made of silicon oxide having a uniform thickness of 40 nm is formed by vapor deposition by a resistance heating method using a pellet formed by press-molding Si and SiO ₂ as an evaporation source, and a thermosetting acrylic resin is further formed thereon. A transparent resin coating consisting of 50 parts, 5 parts of polyisocyanate, 50 parts of toluene, 30 parts of xylene, and 20 parts of n-butyl alcohol was applied by a gravure coater and dried, and cured at 160 ° C. for 20 seconds to a thickness of 0.2. A transparent resin overcoat layer having a uniform thickness of μm was formed to obtain a laminate having a beautiful iris color.

The obtained laminate was slit in the same manner as in Example 1 to obtain an iris-colored gold-silver thread.

Comparative Example 1 A transparent resin coating composed of 100 parts of thermosetting acrylic resin, 5 parts of polyisocyanate, 50 parts of toluene, 30 parts of xylene and 20 parts of n-butyl alcohol was coated on one side of a 12 μm-thick polyethylene terephthalate film with a gravure coater. Apply and dry at 160 ° C x 20 seconds and cure to a thickness of 0.2
A transparent resin undercoat layer having a uniform thickness of μm is formed, and zinc sulfide is vacuum-deposited thereon to form a zinc sulfide layer having a uniform thickness of 40 nm, and 50 parts of a thermosetting acrylic resin is further formed thereon. , Polyisocyanate 5 parts, toluene 50
Parts, xylene 30 parts, n-butyl alcohol 20 parts of a transparent resin coating was applied by a gravure coater and dried, and 160 ° C.
The coating was cured under the conditions of × 20 seconds to form a transparent resin overcoat layer having a uniform thickness of 0.2 μm to obtain an iris laminate.

This laminate was slit in the same manner as in Example 1 to obtain an iris-colored gold-silver thread.

Comparative Example 2 On one side of a polyethylene terephthalate film having a thickness of 12 μm, zinc sulfide was vacuum-deposited to form a zinc sulfide layer having a uniform thickness of 40 nm, and 50 parts of a thermosetting acrylic resin and polyisocyanate 5 were formed thereon. Parts, toluene 50
Parts, xylene 30 parts, n-butyl alcohol 20 parts of a transparent resin coating was applied by a gravure coater and dried, and 160 ° C.
Transparent resin layer with non-uniform thickness after curing under conditions of × 20 seconds (average thickness 0.5 μm, maximum thickness 0.8 μm, minimum thickness 0.
2 μm, thickness non-uniformity 0.6 μm, non-uniform period 20 mm, parallel stripe pattern) were formed to obtain an iris-colored laminate.

This laminate was slit in the same manner as in Example 1 to obtain an iris-colored gold-silver thread.

Comparative Example 3 A transparent resin coating composition comprising 100 parts of thermosetting acrylic resin, 5 parts of polyisocyanate, 50 parts of toluene, 30 parts of xylene and 20 parts of n-butyl alcohol was coated on one side of a 12 μm-thick polyethylene terephthalate film with a gravure coater. Apply and dry at 160 ° C x 20 seconds and cure to a thickness of 0.2
A transparent resin undercoat layer having a uniform thickness of μm is formed, and zinc sulfide is vacuum-deposited thereon to form a zinc sulfide layer having a uniform thickness of 40 nm, and 50 parts of a thermosetting acrylic resin is further formed thereon. , Polyisocyanate 5 parts, toluene 50
Parts, xylene 30 parts, n-butyl alcohol 20 parts of a transparent resin coating was applied by a gravure coater and dried, and 160 ° C.
Transparent resin layer having an uneven thickness by curing under conditions of × 20 seconds (average thickness 0.6 μm, maximum thickness 1 μm, minimum thickness 0.2
μm, thickness non-uniformity 0.8 μm, non-uniform period 20 mm, parallel stripe pattern) to obtain an iris-colored laminate.

This laminate was slit in the same manner as in Example 1 to obtain an iris-colored gold-silver thread.

The iris color of each of the obtained iris-colored gold-silver yarns was visually observed and evaluated according to the following criteria.

A: The iris color is strong in both color and gloss.

…: Strong iris color.

Δ: The iris color is monotonous.

×: Light iris color.

The following treatments were performed for each iris-colored gold and silver thread, and the change in iris color was visually observed, and evaluated according to the following criteria. In this evaluation, the change in the iris color before and after the processing is observed. Therefore, even if the iris color before the processing is inferior, if the iris color does not change before and after the processing, the evaluation is A
It turns out that.

A: No change in iris color.

B: The iris layer slightly peeled off.

C: The iris layer peeled off.

Treatment method (1) Bleaching Treatment liquid: 4 g of sodium hypochlorite, water 1 Treatment temperature: 70 ° C Treatment time: 90 minutes (2) Nylon staining Treatment liquid: 1 g of glacial acetic acid, 0.5 g of amyrazine D Acid dye (Diacid Brill. Blue BR) 5% owf, water 1 Treatment temperature: 95 ° C Treatment time: 90 minutes (3) Rayon dyeing treatment solution: 15 g of anhydrous sodium sulfate, 1 g of monogen (170T), 5% owf of direct dye (Direct Deep Black EX), water 1 Treatment temperature: 95 ° C Treatment time: 90 minutes (4) Wool dyeing treatment solution 1: 3.3 g of anhydrous sodium sulfate, 1 g of acetic acid, 0.5 g of aborane SC, 5% owf of acid dye (Kayalon Milling Black TLB), water 1 Treatment temperature: 95 ° C Treatment time: 90 minutes Treatment solution 2: Acidmin super 2 g, water 1 Treatment temperature: 40 ° C Treatment time: 30 minutes (5) Reaction staining Treatment solution: anhydrous sodium sulfate 40 g, sodium carbonate 15 g, reactive dye (Cibacron Brill. Red BE) 5% owf, water 1 Treatment temperature: 60 ° C Treatment time: 90 minutes (6) Silk scouring Treatment liquid: Marsen soap 3g, hydrosulfur 0.8 g of light,
3.9 g of sodium silicate, water 1 Treatment temperature: 95 ° C Treatment time: 9 hours The results are shown in Table 1.

[Effect of the Invention] In the iris color laminate, the iris layer has a configuration in which an iris compound thin film layer and a resin layer having an uneven thickness are laminated, and the iris layer is a transparent resin undercoat layer and a transparent inorganic protective layer. The iris color is very abundant, strong and glossy by providing a transparent resin overcoat layer on the other side of the iris layer with a transparent inorganic protective layer on the other side of the iris layer. It is extremely excellent, has a very clear iris pattern, has extremely good resistance to sewage treatment such as scouring and bleaching, and can be dyed with nylon or wool.

[Brief description of the drawings]

FIG. 1 is a schematic partial sectional view showing one embodiment of the iris-colored laminate of the present invention, and FIG. 2 is a schematic partial sectional view showing another embodiment. (Signs in the drawings) (1): transparent plastic film (2): transparent resin undercoat layer (3a): first transparent inorganic protective layer (3b): second transparent inorganic protective layer (4): iris layer (4a) : Iris compound thin film layer (4b): Transparent resin layer with uneven thickness (5): Transparent resin overcoat layer

Claims (4)

(57) [Claims] 1. A laminate having a transparent iris layer formed by laminating an iris compound thin film layer and a transparent resin layer having a non-uniform thickness on one surface of a transparent plastic film, The iris layer is provided on the plastic film via a layer laminated in the order of a transparent resin undercoat layer and a transparent first inorganic protective layer, and the other side of the iris layer opposite to the first inorganic protective layer. An iris-colored laminate, further comprising a transparent resin overcoat layer provided through a transparent second inorganic protective layer. 2. A transparent plastic undercoat layer on one side of a transparent plastic film, a transparent first inorganic protective layer, an iris compound thin film layer, a transparent resin layer having an uneven thickness, and a transparent second inorganic protective layer. The iris-colored laminate according to claim 1, wherein a layer and a transparent resin overcoat layer are provided in this order. 3. A transparent plastic undercoat layer on one side of a transparent plastic film, a transparent first inorganic protective layer, a transparent resin layer having an uneven thickness, an iris compound thin film layer, and a transparent second inorganic protective layer. The iris-colored laminate according to claim 1, wherein a layer and a transparent resin overcoat layer are provided in this order. 4. An iris-colored gold-silver yarn, which is a slit yarn of the iris-colored laminate according to claim 1, 2 or 3.