JPH0754268A - Textile cloth having interference color and production thereof - Google Patents

Abstract

PURPOSE:To reconcile high brightness and good see-through property and develop interference color having improved elegance in the interference color- developing of a textile cloth. CONSTITUTION:This textile cloth having interference color is produced by coating at least one surface of a textile cloth 2 composed of modified cross-section warps and/or wefts (fiber having cross-section other than circular form) with a light-interference film having a transparent layer 3 composed of an essentially transparent thin film capable of developing color by the interference of the reflection light R2 from the surface with the reflection light R3 from the back surface by the incident light R applied to the surface side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fiber cloth having an interference color and a method for producing the same, and in particular, an interference color having a high lightness and a high saturation can be obtained, and high glossiness and good transparency can be easily achieved. The present invention relates to a fiber fabric that can be stretched and a method for producing the same.

[0002]

2. Description of the Related Art As a method for obtaining an iris color, a light reflecting film, a metal compound transparent film, or a semitransparent metal vapor deposition film is laminated on one side or both sides of a transparent film or paper, and an iris color, so-called rainbow, is formed by interference of reflected rays. A method for making colors appear is known (Japanese Patent Laid-Open No. 61-15962).

However, in the above method, since the surface of the base material is flat, the difference between specular reflection and diffuse reflection is several hundred times, and the difference in brightness is about 60 times. Also, there is a drawback in that the glossiness of the iris color remarkably decreases if the viewing angle deviates slightly from the position of specular reflection.

In order to solve such a defect, the applicant of the present invention previously laminated a light-reflecting film, a metal compound transparent film, and a semi-transparent metal vapor deposition film on one surface of a fiber cloth, and a monochromatic color was generated by interference of reflected light rays. A fiber cloth having an interference color has been proposed and has been already known (Japanese Patent Laid-Open No. 3-82881), in which a hue that changes in hue depending on the viewing angle between two hues and two hues or more appears.

[0005]

However, in the fiber cloth having the interference color according to the above-mentioned proposal, although it is possible to develop a brilliant iris color even when the viewing angle is changed, it is found in the examples. As described above, since the fiber cloth as the base material is simply a plain plain cloth,
When the viewing angle is constant, only a nearly constant shade is produced over the entire surface of the textile fabric, making it look flimsy, and it is difficult to produce a deep and complex shade with a high-grade feeling. It was Further, the transparency of the fiber cloth for giving a higher-grade feeling was not particularly considered.

Focusing on such problems, the present invention takes advantage of the interference coloring of the fiber cloth, and further enhances the glitter and at the same time improves the translucency to give a more luxurious appearance. An object of the present invention is to provide a fiber cloth having the following and a method for producing the same.

[0007]

Means for Solving the Problems A fiber cloth having an interference color of the present invention for this purpose comprises a fiber cloth in which at least one of warp and weft is a fiber having a modified cross section, and at least one surface of the fiber cloth is provided. On the exposed surface of the exposed fiber, an optical interference film having a transparent layer formed of a substantially transparent thin film capable of coloring by the interference of the light incident from the surface side with the reflected light on the front surface and the reflected light on the back surface. It consists of the provided ones.

[0008] In the present invention, "an irregular cross section" of a fiber having an irregular cross section means a cross section other than a circle, for example,
It means a cross-sectional shape such as a triangle, a polygon, a flat shape, or a star shape. Further, in the fiber cloth having this interference color, the surface coverage of the cloth is preferably 70% or less.

Further, the method for producing a fiber cloth having an interference color according to the present invention comprises forming a fiber cloth using at least one of warp threads and weft threads having a modified cross section as described above, and at least one side of the fiber cloth. In addition, the method of vapor-depositing a light interference film having a transparent layer made of a substantially transparent thin film capable of forming a color by the interference of the light incident from the front surface side with the reflected light on the front surface and the reflected light on the back surface.

[0010]

The fiber cloth having such an interference color is colored by the interference between the light reflected from the front surface side and the light reflected from the back surface side of the light interference film. Since this optical interference film is provided on at least one side of the fiber cloth, not on a flat substrate such as film or paper, the optical interference film also forms a layer having a fine uneven surface along the minute unevenness of the cloth. Formed, the difference between specular reflection and diffuse reflection is reduced, and a high-brightness and high-saturation interference color can be obtained even when the viewing angle is changed.

Since at least one of the warp yarn and the weft yarn is made of a fiber having a modified cross section, the surface area of the fiber on which the optical interference film is formed is larger than that of a fiber having a round cross section. The degree of interference coloring by the light interference film is increased, and the glitter of the fabric as a whole is improved. Further, in the case of the modified cross-section yarn, the surface coverage can be controlled more easily than in the case of the round cross-section yarn, and particularly when the surface coverage is 70% or less, high transparency can be obtained. As a result, both high brilliance and high transparency are achieved, and a more sophisticated color tone is developed.

Further, since the optical interference film is basically formed independently for each fiber, the good drape property and air permeability of the fiber cloth itself are substantially maintained.

[0013]

EXAMPLES Various embodiments of the present invention and specific examples will be described below. First, the base material of the fiber cloth having the interference color of the present invention is a fiber cloth using a fiber having a modified cross section in at least one of the warp and the weft. The fiber having a modified cross section is not particularly limited, but for example, a fiber 11 having a triangular cross section as shown in FIG.
Fiber 12 having a modified triangular cross section as shown in FIG. 2, FIG.
5, a fiber 13 having a T-shaped cross section, a fiber 14 having a polygonal star-shaped cross section as shown in FIG. 4, a fiber 15 having a polygonal (eg, pentagonal, hexagonal) cross section as shown in FIG. Fibers 16 having a flat cross section as shown in FIG.
Fibers 17 having a star-shaped cross section as shown in FIG.

Since the fiber having such a modified cross section has a larger surface area than that of the round cross section, the area where the optical interference film is formed for each fiber is increased, and the area of the optical interference film is increased accordingly. The glitter is also improved. Further, in general, the surface coverage can be easily controlled to be lower than that of a circular cross section.

An optical interference film is laminated on at least one surface of the fiber cloth. The light interference film has at least a transparent layer, and the transparent layer means the light incident from the surface side.
A layer composed of a substantially transparent thin film capable of developing color by the interference between the light reflected on the front surface and the light reflected on the back surface.

The transparent layer is made of, for example, a transparent metal compound film, and its material is SiO, SiO ₂ , In.
₂ O ₃ , TiO ₂ , In ₂ O ₃ / SnO ₂ , MgF ₂ ,
At least one selected from Al ₂ O ₃ and Cr ₂ O ₃ can be mentioned.

The optical interference film can take the following various modes. First, when the light interference film is composed of only a transparent layer, as shown in FIG. 8, a transparent layer 3, for example, a transparent layer 3, is formed on one or both sides of a fiber cloth 2 in which a fiber 1 having a modified cross section is used for at least one of warp and weft. The transparent layer 3 made of a transparent metal compound film is provided by, for example, vapor deposition.

In the fiber cloth 2 having such a transparent layer 3 laminated, the light R incident from the front side is reflected light R _{2 on} the surface of the transparent layer 3 and reflected light R ₃ on the back surface.
That is, the color is developed by the interference between the transparent layer and the reflection at the boundary surface between the fiber in contact with the transparent layer.

This coloring is caused by the material of the transparent layer 3 and the fiber cloth 2
It changes variously depending on its own color and the thickness of the transparent layer 3. In particular, in order to obtain a brilliant color, the thickness of the transparent layer 3 is
It is preferably 400 Å or more and 5000 Å or less.

As shown in FIG. 9, the optical interference film is formed on one or both sides of the fiber cloth 2 from the side of the fiber cloth 2 to the reflection layer 4.
Alternatively, the transparent layer 3 and the transparent layer 3 may be sequentially stacked to form a two-layer structure. The reflective layer 4 is made of, for example, a metal thin film having an average reflectance of 60% or more (preferably 90% or more) in the visible light region, and the material of the reflective metal film is, for example, Al, Cu, Ti, Ag, Mg. , Au,
At least one selected from Cr, Pe, and Rh can be given. Such a reflective layer 4 can also be provided by vapor deposition, and the thickness of the reflective metal film forming the reflective layer 4 is preferably 500 Å or more.

In the fiber cloth 2 in which the reflective layer 4 and the transparent layer 3 are sequentially laminated, the light R incident from the surface side
That is, the reflected light R ₂ on the surface of the transparent layer 3 and the reflected light R ₃ on the back surface, that is, the reflected light from the boundary surface between the transparent layer 3 and the reflective layer 4 interfere with each other to develop a color.

The optical interference film, as shown in FIG.
It may be formed by forming a three-layer structure in which the reflective layer 4, the transparent layer 3, and the semitransparent layer 5 are sequentially laminated in this order from one side or both sides of the fiber cloth 2 from the fiber cloth 2 side.
The semitransparent layer 5 is made of, for example, a semitransparent metal film having an average reflectance of 60% or less in the visible light region, and the material of the semitransparent metal film is Al, Cu, Ti, Ag, Mg, I.
At least one selected from n, Cr, Si, Au, and Au / Pt can be given. Such a translucent layer 5
Can also be provided by vapor deposition, and the thickness of the semitransparent metal film forming the semitransparent layer 5 is preferably 20 Å or more and 500 Å or less.

In the fiber cloth 2 in which the reflective layer 4, the transparent layer 3 and the semitransparent layer 5 are laminated in this order, the light R incident from the front side is the surface of the semitransparent layer 5 and the surface of the transparent layer 3. ,
The reflected light R is reflected on the front surface of the reflective layer 4 (the back surface of the transparent layer 3).
₁ , R ₂ and R ₃ are generated, and the reflected lights R ₁ , R ₂ and R ₃ interfere with each other to develop an interference color.

Further, the optical interference film is as shown in FIG.
On one or both sides of the fiber cloth 2, from the fiber cloth 2 side,
It has a two-layer structure in which the transparent layer 3 and the semitransparent layer 5 are sequentially laminated.
It may be formed by Such a fiber cloth 2
In that case, mainly reflected light R ₂And R₃Due to interference with
It is colored.

In the case of the fiber cloth having the interference color provided with the above-mentioned optical interference film, as shown in FIG. 12, the adhesive layer 6 is interposed between the fiber cloth 2 and the optical interference film. (FIG. 12 exemplifies a light interference film having a three-layer structure including the reflection layer 4, the transparent layer 3, and the semitransparent layer 5 shown in FIG. 10 as the light interference film). By providing such an adhesive layer 6, the peel strength of the light interference film from the fiber cloth 2 can be increased, and the durability of the light interference film can be increased.

Although not shown, a protective film may be provided on the surface of the light interference film by coating or the like, if necessary. The protective film is preferably substantially transparent so as not to impair the incidence of light on the light interference film and the development of the interference color from the light interference film. However, it may be colored.

Next, the method for producing the fiber cloth having the interference color of the present invention will be described. First, a fiber cloth using fibers having a modified cross section in at least one of warp and weft is prepared, and the optical interference film of the embodiment shown in FIGS. 8 to 12 is provided on at least one surface thereof. In the mode shown in FIG. 8,
The transparent layer 3 is directly vapor-deposited on at least one surface of the fiber cloth 2. In the aspect shown in FIG. 9, the reflective layer 4 is vapor-deposited and then the transparent layer 3 is vapor-deposited. In the aspect shown in FIG. 10, the reflective layer 4, After the transparent layer 3 and the semitransparent layer 5 are sequentially deposited, in the embodiment shown in FIG. 11, the transparent layer 3 and the semitransparent layer 5 are sequentially deposited, and in the embodiment shown in FIG. 12, after the adhesive layer 6 is provided. The reflective layer 4 is provided on the adhesive layer 6 by adhesion or vapor deposition, and the transparent layer 3 and the semitransparent layer 5 are sequentially vapor-deposited thereon. Note that FIG.
FIG. 4 is a schematic partial cross-sectional view of a fabric showing how the optical interference film is attached in that state, since there is actually a gap between fibers (this gap ensures transparency).

After vapor deposition, 130 ° C. or higher, preferably 170
By heat-treating at a temperature of not less than 0 ° C., the vapor-deposited film can be made to have an intended film composition as an oxide film, or the film strength can be improved. Then, if necessary, a protective film is provided on the optical interference film by coating or the like.

A more specific embodiment will be described below. Example 1 A gauze made of polyester monofilament yarn (20 denier) as a warp and a multifilament yarn consisting of four polyester filament yarns having a single yarn fineness of 40 denier as a weft was made, and a multifilament yarn consisting of these four polyester filament yarns A thread having a triangular cross section was used for. After finishing setting, one side of the fiber cloth is provided with 3 of the embodiment shown in FIG.
A layered optical interference film was vapor-deposited (surface coverage of fiber cloth:
40%).

The reflective layer is made of Al and has a film thickness of 800Å
The transparent layer is made of SiO and has a thickness of 80
The thickness was 0Å, 1000Å, 1200Å, 1500Å, and the semitransparent layer was composed of Cr and the film thickness was 30Å. After these reflective layer, transparent layer, and semi-transparent layer are vapor-deposited, heat treatment is performed at 170 ° C. for 2 minutes, and then polydimethylpolysiloxane-based silicone is coated thereon as a protective film.
It heat-processed on condition of 2 degreeC.

As a result, the transparent layer having a film thickness of 800 Å has a deep color mainly composed of blue, and the film thickness is 1000 Å
For those with a film thickness of 1200Å, those with a film thickness of 1200Å can be obtained with a deep color, while for those with a film thickness of 1500Å, those with a film thickness of 1500Å can be obtained. A certain color was obtained.

Since the obtained fiber cloth uses the triangular cross-section yarn as the weft yarn, the surface area is increased as compared with the round cross-section yarn, and the surface area of the spectral interference film is also increased to obtain high glitter. It was In addition, the surface coverage was low and it also had good transparency. In addition, drapeability and breathability are good,
When it was held in the hand or worn as clothes, the color of each part changed intricately according to the movement, and a high-grade color tone with high glitter and transparency was obtained.

[0033]

As described above, according to the fiber cloth having the interference color of the present invention and the manufacturing method thereof, the following effects can be obtained. (1) A fiber having an irregular cross section in at least one of a warp and a weft, which is obtained by interference phenomenon of light in an optical interference film without using a dye, and which produces interference hue mainly composed of a single hue color and two or more hue colors. Since a fiber cloth using is used as a base material, it is possible to obtain an interference color that is extremely high-grade and has excellent glitter and transparency. (2) In the case of a film or paper having a flat surface, the interference color is remarkably reduced when the viewing position is slightly deviated from the specular reflection position. However, in the fiber cloth having the interference color of the present invention, the viewing angle is changed. Also does not reduce the brilliance of the color, and an extremely bright color tone can be obtained. (3) Various interference colors can be produced by adjusting each film thickness of the light interference film and viewing angle. (4) Since it does not depend on dyeing or the like, it does not fade at all. (5) However, since it is a fiber cloth, the original functions of the fiber cloth such as drape, moisture permeability, air permeability, and flexibility are not impaired.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a fiber showing an example of a fiber having a modified cross section according to the present invention.

FIG. 2 is a cross-sectional view of a fiber showing another example of the fiber having a modified cross section according to the present invention.

FIG. 3 is a cross-sectional view of a fiber showing still another example of the fiber having a modified cross section according to the present invention.

FIG. 4 is a cross-sectional view of a fiber showing still another example of the fiber having a modified cross section according to the present invention.

FIG. 5 is a cross-sectional view of a fiber showing still another example of the fiber having a modified cross section according to the present invention.

FIG. 6 is a cross-sectional view of a fiber showing still another example of the fiber having a modified cross section according to the present invention.

FIG. 7 is a cross-sectional view of a fiber showing still another example of the fiber having a modified cross section according to the present invention.

FIG. 8 is a schematic partial cross-sectional view of a fiber cloth having an interference color according to an embodiment of the present invention.

FIG. 9 is a schematic partial cross-sectional view of a fiber cloth having an interference color according to another embodiment of the present invention.

FIG. 10 is a schematic partial cross-sectional view of a fiber cloth having an interference color according to still another embodiment of the present invention.

FIG. 11 is a schematic partial cross-sectional view of a fiber cloth having an interference color according to still another embodiment of the present invention.

FIG. 12 is a schematic partial cross-sectional view of a fiber cloth having an interference color according to still another embodiment of the present invention.

FIG. 13 is a schematic partial cross-sectional view showing how an optical interference film is attached to a fiber cloth having an interference color according to an embodiment of the present invention in a state where there is a gap between the fibers.

[Explanation of symbols]

1 Fiber having a modified cross section 2 Fiber cloth 3 Transparent layer 4 Reflective layer 5 Semi-transparent layer 6 Adhesive layer 11, 12, 13, 14, 15, 16, 17 Each modified cross-section fiber (cross-sectional shape) R Incident light R ₁ , R ₂ , R ₃ reflected light

Claims (7)

[Claims] 1. At least one of warp and weft is made of a fiber cloth which is a fiber having a modified cross section, and the surface of the light incident from the surface side is exposed on the exposed surface of the fiber exposed on at least one side of the fiber cloth. A fiber cloth having an interference color, which is provided with an optical interference film having a transparent layer made of a substantially transparent thin film capable of forming a color by the interference between the reflected light and the reflected light on the back surface. 2. The fiber cloth having an interference color according to claim 1, wherein the surface coverage of the fiber cloth is 70% or less. 3. A fiber cloth having an interference color according to claim 1, wherein the light interference film is composed of only the transparent layer. 4. The optical interference film, from the fiber cloth side,
The fiber cloth having an interference color according to claim 1 or 2, comprising a reflective layer having an average reflectance of 60% or more in a visible light region and a film having a two-layer structure in which the transparent layer is sequentially laminated. 5. The optical interference film, from the fiber cloth side,
A film having a three-layer structure in which a reflective layer having an average reflectance in the visible light region of 60% or more, the transparent layer, and a semitransparent layer having an average reflectance of 60% or less in the visible light region are sequentially laminated in this order. A fiber cloth having an interference color according to claim 1 or 2. 6. The optical interference film, from the fiber cloth side,
The transparent layer has an average reflectance of 60 in the visible light region.
% Of the semi-transparent layer is sequentially laminated, and the fiber cloth having the interference color according to claim 1 or 2 is formed of a film having a two-layer structure. 7. A fiber cloth is formed by using fibers having a modified cross section in at least one of the warp and the weft, and the light incident from the front surface to the light reflected from the front surface and the back surface is reflected on at least one surface of the fiber cloth. A method for producing a fiber cloth having an interference color, which comprises subjecting a light interference film having a transparent layer made of a substantially transparent thin film capable of forming a color by interference with light to a vapor deposition process.