JPH0247327A - Metallic yarn of rainbow color - Google Patents

Abstract

PURPOSE:To obtain metallic yarn of rainbow colors having excellent rainbow colors by laminating a transparent resin undercoating layer having nonuniform thickness, then a thin film layer of zinc sulfide and then a transparent resin top coating layer having uniform thickness to one side of a transparent plastic film and then slitting. CONSTITUTION:A transparent resin undercoating layer (preferably one comprising acrylic resin having 0.02-3mum thickness) 2 having nonuniform thickness is laminated to one side of a transparent plastic film (preferably one comprising polyester film having 6-50mum thickness) 1, then a thin film layer of zinc sulfide (preferably one having 10-40mum thickness) 3 and then a transparent resin top coating layer (preferably one comprising acrylic resin having 0.02-3mum thickness) 4 having uniform thickness are laminated to the film and slit to give metallic yarn of rainbow colors standing adjustment treatment such as scouring and capable of being subjected to dyeing after weaving. The nonuniform thickness has preferably 0.1-1mum difference in thickness between thickn part and thin part.

Description

[Detailed description of the invention] [Technical field] The present invention relates to iridescent gold and silver threads.

[Prior Art] Conventionally, it has been known that iris-colored gold and silver threads are made by slitting a film-like material having an iris pattern, which is made by providing a translucent metal compound or metal vapor-deposited layer on a film such as polyester. ing.

[Problems to be Solved by the Invention]However, there are drawbacks such as the conventional iris-colored gold and silver thread.

In other words, the iris color was monotonous, the iris luster was poor, and the practical properties (washing, bleaching, dyeing, scouring, etc.) of the iris gold and silver thread were poor.

The present invention was developed in view of the above-mentioned conventional problems, namely, the iris color is monotonous, the iris luster is poor, and the practical properties as iris gold and silver thread (washing, bleaching, dyeing, scouring, etc.) are poor. To provide a gold and silver thread that can be used satisfactorily as an iris-colored gold and silver thread.

[Means for Solving the Problems] The iridescent gold and silver thread of the present invention has a transparent resin undercoat layer with a non-uniform thickness on one side of a transparent plastic film, a zinc sulfide thin film layer with a non-uniform thickness, It is characterized by being a slit yarn of a film-like material having a structure in which a transparent resin top coat layer is formed in this order.

[Function] There are no particular limitations on the transparent plastic film used for the iridescent gold and silver threads of the present invention. <Films conventionally used for gold and silver threads, such as polyester, polyamide, polyamideimide, polyethylene, polypropylene, cellulose acetite, polycarbonate, polyvinyl chloride,
A resin film such as fluorine resin or the like may be used as appropriate. The thickness of the transparent plastic film is usually appropriately selected from the range of 4 to 100 μs, more preferably from the range of 6 to 50 μs. It is no exaggeration to say that the mechanical properties of the transparent plastic film influence the mechanical properties of the obtained iridescent gold and silver thread almost as they are, thereby determining the weavability and texture.

In addition, in the iridescent gold and silver thread of the present invention, the thickness of the transparent glue finger undercoat layer, which has a non-uniform thickness, is usually 0. It is selected from the range of O1 to O5, more preferably from 0.02 to O3. The thickness of the transparent resin undercoat layer with non-uniform thickness is 0.0
If it is less than 1 μs, iris gloss cannot be obtained, and washing, bleaching,
Practical properties such as dyeing and scouring are poor and undesirable. On the other hand, if it exceeds 5#LIIl, the iris will have poor luster, and in addition, the iris-colored gold and silver threads will become rigid as a whole, resulting in poor weavability and texture, which is undesirable. (difference between thick and thin parts)
is preferably about 0.1 to IIa. The difference is 0
．． If the difference is less than 1, the color development will be monotonous, which is undesirable, and if the difference exceeds 1 μs, the color development will become pale, which is not preferred.

Any of thermoplastic resins, thermosetting resins, electron beam curable resins, and ultraviolet curable resins may be used as the resin for forming such a transparent resin undercoat layer having a nonuniform thickness. For example, acrylic resins may be used. resin.

Styrenic resin, acrylic-styrene copolymer, vinyl chloride resin, vinyl acetate resin, vinyl chloride-vinyl acetate copolymer, polyvinyltutilal, polycarbonate, nitrocellulose, cellulose acetate, urethane resin, urea resin, Preferably used are melamine resins, urea-melamine resins, epoxy resins, alkyd resins, aminoalkyd resins, rosin-modified maleic acid resins, and mixtures thereof.

The transparent resin undercoat layer having a non-uniform thickness can be formed by applying an organic solvent solution, aqueous solution, etc. of the resin to form the transparent resin undercoat layer having a non-uniform thickness, for example, by gravure coating method, spray coating method, etc. Apply it unevenly using a normal coating method such as an ink method, and dry it (thermosetting resin,
In the case of electron beam curable resins, ultraviolet ray curable resins, etc., this is done by curing).

Further, in the iridescent gold and silver thread of the present invention, the thickness of the zinc sulfide fi film layer is usually in the range of 5 to 50 nm, more preferably 10 nm.
-40 nm. If the thickness of the zinc sulfide thin film layer is less than 5 nm, iris gloss cannot be obtained, which is not preferable. On the other hand, if it exceeds 50 nm, the iris gloss will be poor, which is not preferable.

Is there any particular restriction on the evaporation material for forming such a zinc sulfide thin film layer? For example, the purity of zinc sulfide is 70% or less.
Any powder obtained by press-molding the above powder can be used, but it is more preferable to use one obtained by press-molding zinc sulfide powder with a purity of 90% or more.

The zinc sulfide pJ film layer is formed by using an evaporation material obtained by press-molding the zinc powder using a conventional evaporation thin film formation method such as a resistance heating method, a high frequency induction heating method, or an electron beam heating method.

Further, in the iridescent gold and silver thread of the present invention, the thickness of the transparent resin overcoat layer having a non-uniform thickness is usually selected from the range of 0.01 to 5 -, more preferably from the range of 0.02 to 3 μs. The thickness of the transparent resin topcoat layer with non-uniform thickness is 0.0
If it is less than 1 gm, no iris luster can be obtained, which is undesirable. On the other hand, if it exceeds 5 μs, the iris luster is poor, and furthermore, the iris-colored gold and silver thread becomes stiff as a whole, resulting in poor weavability and texture, which is undesirable. The degree of thickness (difference between thick and thin topcoat layer) is 0.
．． It is preferable to set it to about 1 to l-, and the difference is 0. I
If it is less than Q, the coloring will be monotonous and undesirable, and the difference will be I
Even if it exceeds Ia, the color becomes pale, which is not preferable.

As the resin for forming the transparent resin top coat layer having such non-uniform thickness, any of thermoplastic resins, thermosetting resins, electron beam curable resins, and ultraviolet curable resins may be used, such as acrylic resins. 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, melamine resin, urea-melamine These resins, epoxy resins, alkyd resins, aminoalkyd resins, rosin-modified maleic acid resins, and the like are preferably used alone or in mixtures.

The transparent resin top coat layer having a non-uniform thickness can be formed by applying an organic solvent solution, aqueous solution, etc. of the resin to form the transparent resin top coat layer having a non-uniform thickness, for example, by gravure coating method, spray coating method, etc. Apply it unevenly using a normal coating method such as
In the case of electron beam curable resins, ultraviolet ray curable resins, etc., this is done by curing).

Note that the transparent resin top coat layer and the transparent resin undercoat layer may be colored with dyes and/or pigments as appropriate.

[Example] Next, the iris-colored gold and silver thread of the present invention will be explained based on the drawings. FIG. 1 is a schematic partial sectional view showing an embodiment of the iridescent gold and silver thread of the present invention. In FIG. 1, (1) is a transparent plastic film, and the transparent plastic film (
A transparent resin undercoat layer (2
), a zinc sulfide thin film layer (3), and a transparent resin undercoat layer (4) having non-uniform thickness are laminated in this order.

Next, the present invention will be explained with reference to Examples.

Example 1 A transparent resin coating consisting of 100 parts of acrylic resin, 5 parts of incyaneto resin, 50 parts of toluene, 30 parts of xylene, and 20 parts of n-butyl alcohol was applied to one side of a polyethylene terephthalate film with a thickness of 12 μs using a Clavier coater. A transparent resin undercoat layer having a non-uniform thickness with an average thickness of 0.2 was formed by drying, and a press-molded pellet of zinc sulfide powder with a purity of 99% was deposited on the undercoat layer using a resistance heating evaporation method. Then, a zinc sulfide thin film layer with a thickness of 20 parts m was formed, and 50 parts of acrylic resin and 5 parts of isocyanate resin were added thereon.
A transparent resin coating material consisting of 50 parts of toluene, 30 parts of xylene, and 20 parts of n-butyl alcohol was coated with a gravure coater and dried to have a non-uniform thickness with an average thickness of 0.2 - I: A film-like material with a beautiful iridescent color was obtained by forming a coating layer.

The obtained film-like material was microslit into 120 pieces (width 0.252 mm) to obtain the iridescent gold and silver thread of the present invention.

Example 2 A transparent resin coating consisting of 100 parts of acrylic resin, 5 parts of isocyanate resin, 50 parts of toluene, 30 parts of xylene, and 20 parts of n-butyl alcohol was applied to one side of a 12 μs thick polyethylene terephthalate film using a gravure coater and dried. A transparent resin undercoat layer having a non-uniform thickness with an average thickness of 0.2 μs was formed, and a zinc sulfide thin film layer with a thickness of 20 parts m was formed thereon in the same manner as in Example 1. A transparent resin coating consisting of 50 parts of acrylic resin, 5 parts of Incyanate resin, 50 parts of toluene, 30 parts of xylene, and 20 parts of n-butyl alcohol was applied on top using a gravure coater and dried to form a non-uniform coating with an average thickness of 0.2 μs. By forming a thick transparent resin overcoat layer, a film-like product exhibiting a beautiful iris color was obtained.

Two pieces of the obtained film-like material were coated with a urethane resin adhesive with the polyethylene terephthalate film side facing inside, dried, and then pasted together via a two-thick adhesive layer.
A film-like material with a ply structure and a beautiful iridescent color was obtained.

Cut the resulting film into 120 pieces (0,252m wide)
The iridescent gold and silver thread of the present invention was obtained by micro-slitting.

Comparative Example 1 A transparent resin coating consisting of 100 parts of acrylic resin, 5 parts of isocyanate resin, 50 parts of toluene, 30 parts of xylene, and 20 parts of normal butyl alcohol was applied to one side of a polyethylene terephthalate film with a thickness of 12 μs using a gravure coater. Dry to form a transparent resin undercoat layer with a uniform thickness of 0.2 µm on average, and then vacuum-deposit zinc sulfide to a thickness of 20 gm to form a zinc sulfide layer. 50 parts of resin, 5 parts of isocyanate resin, 50 parts of toluene
A transparent resin coating consisting of 30 parts of xylene and 20 parts of n-butyl alcohol was coated with a gravure coater and dried to obtain a transparent resin J having an uneven thickness with an average thickness of 0.21.
A film-like product was obtained which formed a coating layer and exhibited a beautiful iridescent color.

Cut the obtained film-like material into 120 pieces (0,252 mm1
Micro-slits were made in the tllj) to obtain iris-colored gold and silver threads according to the prior art.

Comparative Example 2 On one side of a polyethylene terephthalate film with a thickness of 12 g, zinc sulfide was vacuum-deposited to a thickness of 200 to form a zinc sulfide layer, and on top of that, 50 parts of acrylic resin, 5 parts of incyaneto resin, 50 parts of toluene, and xylene were added. A transparent resin coating consisting of 30 parts of n-butyl alcohol and 20 parts of n-butyl alcohol is applied and dried using a gravure coater to form a transparent resin topcoat layer with an uneven thickness of 0.2 to 100% on average to create a beautiful rainbow. A colored film-like material was obtained.

Cut the resulting film into 120 pieces (0,252m5 width)
The iridescent gold and silver threads were obtained by micro-slitting and using conventional technology.

Comparative Example 3 A transparent resin coating consisting of 100 parts of acrylic resin, 5 parts of isocyanate resin, 50 parts of toluene, 30 parts of xylene, and 20 parts of n-butyl alcohol was applied to one side of a 12 μs thick polyethylene terephthalate film using a gravure coater and dried. to form a transparent resin undercoat layer having a non-uniform thickness with an average thickness of 0.2 mm, and then vacuum depositing zinc sulfide to a thickness of 20 nm to form a zinc sulfide layer. 50 parts of acrylic resin, 5 parts of isocyanate resin, 5 parts of toluene
0 parts, xylene 30 parts, n-butyl alcohol 20 parts
A transparent resin coating consisting of 30% and 30% was coated with a gravure coater and dried to form a transparent resin undercoat layer having a uniform thickness of 0.2 μs on average, thereby obtaining a film-like product exhibiting a beautiful iris color.

Cut the obtained film-like material into 120 pieces (0,252 mm width)
The iridescent gold and silver threads were obtained by micro-slitting and using conventional technology.

The resulting iris-colored gold and silver threads were subjected to a comparative test using the following test method, and then the change in iris color was visually evaluated to meet the following standards.

○...No abnormality in iris color Δ...Dye stain on iris color ×...Iris color disappeared Also, Example 1 and Example 2. The results of a comparative test of the iridescent gold and silver threads obtained in Comparative Example 1, Comparative Example 2, and Comparative Example 3 are as shown in Table 1.

Test method [Bleaching] Treatment liquid Sodium hypochlorite 4g, Water 11 Treatment temperature: 70°C Treatment time - 60 minutes [Nylon dyeing] Treatment liquid: Glacial acetic acid 1g, Amyracin D 0.5g, Acid dye (Diacid 1lri11. Blwc BR
) 5% owf, water 1 Processing temperature: 95°C Processing time, 60 minutes (rayon dyeing) Processing solution: 15g of anhydrous mirabilite, monogen (+70T) I
g, Direct dye (Direct Deep Black E
X) 5 Z owf, 1 bottle of water Processing temperature: 95°C Processing time: 60 minutes (wool dyeing) Processing solution 1: 3.3 g of anhydrous sodium sulfate, mIg of vinegar, Aporan s
c O, 5g, acid dye (Kayalon Mil
ling[11ack TLB) 5% owf, tree 1
M treatment temperature = 95°C treatment time 260 minutes Treatment liquid 2: Acitomine Super 2g, water I! Treatment temperature: 40°C Treatment time: 20 minutes [Reactive dyeing] Treatment liquid: 40 g of anhydrous sodium sulfate, 15 g of sodium carbonate, reactive dye (fl: 1 bacron, Br, 1ll Red)
[lE] 5% owf, 1 liter of water Treatment temperature: 60°C Treatment time: 60 minutes [Silk scouring] Treatment liquid: Marcel soap 3g, hydrosulfide 0
．． 8g, 3.9g of silicate soda, 1 liter of water Processing temperature: 95
°C Processing time, 6 hours Table-1 [Effects of the invention] Example 1. As is clear from Example 2, Comparative Example 1, Comparative Example 2, and Comparative Example 3, the iris-colored gold and silver thread of the present invention includes a transparent resin undercoat layer with an iris-colored nonuniform thickness, a zinc sulfide thin film layer, and a nonuniform iris-colored gold and silver thread. By forming a transparent resin topcoat layer with a uniform thickness, it exhibits excellent iridescent color, and also withstands textile processing such as scouring and bleaching, and can be piece-dyed for nylon, wool, etc. Effects such as .

[Brief explanation of the drawing]

FIG. 1 is a schematic partial cross-sectional view showing an example of the structure of the iridescent gold and silver thread of the present invention. (Drawing code) (1): Transparent plastic film t2: Transparent resin undercoat layer with non-uniform thickness (3): Zinc sulfide thin film layer

Claims (1)

[Claims] 1. A slit of a film-like material having a structure in which a transparent resin undercoat layer having a non-uniform thickness, a zinc sulfide thin film layer, and a transparent resin topcoat layer having a non-uniform thickness are laminated in this order on one side of a transparent plastic film. Iridescent gold and silver thread, which is characterized by being a thread.