KR100741754B1 - Monofilament with structural color effect and multifilament composed thereby - Google Patents

Abstract

A mono-filament with the structural color effect and a multi-filament constructed by the same are provided to represent the color expression effect without dyeing by means of dye or pigment. The mono-filament with the structural color effect has a cross-section that thin film layers(2) constructed by the main component polymers(1) of mono-filament and polymers with different refraction rates are arrayed between the main component polymers with a constant distance. The shape of the cross-section of the mono filament is a triangular shape such as a prism. The thin film layers have a concentric circle shape and are repeatedly arrayed toward the outside circumference from the center point of the cross-section of the mono filament. The main component polymer is the polyester resin and the thin film layer is the nylon resin.

Description

Monofilament with structural color effect and multifilament composed}

1 is a schematic cross-sectional view of a conventional structural chromogenic monofilament.

Figure 2 is a cross-sectional view of an example of the structural chromogenic monofilament according to the present invention.

3 to 4 are electron micrographs of the cross-section of the structural chromogenic multifilament according to the present invention.

5 is an enlarged electron micrograph of a portion of FIG. 3;

6 is an enlarged electron micrograph of a portion of FIG. 4;

The present invention relates to a structural chromogenic monofilament and a multifilament composed of these (hereinafter referred to as "structural chromogenic yarn"), more specifically, can exhibit a color expression effect without dyeing using a dye or pigment, and the incident angle of light It does not deteriorate the color expression effect even if the change, and relates to the structural chromogenic yarn in which the color is greatly changed due to the interference of light depending on the viewing direction.

Structural chromic yarn refers to a yarn that exhibits a color development effect without dyeing with dyes or pigments due to the interference and diffraction effects of light because two kinds of polymers having different refractive indices on the yarn cross section are alternately stacked.

Structural chromic yarns began to develop and develop in the early 1990s, with Morpho butterfly wings having structural chromogenic properties. In 2003, Teijin, Japan, produced the first structural chromogenic yarn (trade name: Morphotex).

Conventional Structural Yarns (trade name: Morphotex) produced by Teijin, Japan, are nylon resins having different refractive indices between polyester resins (1), which are the main components of Structural Yarns, as shown in FIG. Thirty straight thin films (2) consisting of two layers are laminated and arranged at regular intervals in the longitudinal axis length direction of the structure-chromic yarn.

The thickness of the thin film 2 is about 300 nm level.

More specifically, the conventional structural chromogenic yarn (trade name: Morphotex) is composed of a polyester resin of the outer portion of the yarn cross-section, the central portion of the yarn cross-section of the thin film (2) consisting of nylon resin and polyester of the main component It is the structure by which resin 2 was laminated | stacked alternately.

1 is a schematic cross-sectional view of a conventional structure-chromic yarn.

As described above, since the conventional thin-film thin films (2) made of nylon resin are laminated and arranged at regular intervals in parallel in the long-axis length direction of the cross-linking yarn, the color-emitting effect can be obtained without dyeing. However, when the incident angle of light is incident in the direction of the short-axis length of the structural chromogenic yarn, the color expression effect is greatly reduced, and the effect of changing the color according to the viewing direction is also insignificant.

The present invention solves the problems of the conventional structural chromogenic yarn, it is possible to exhibit a color expression effect without dyeing using a dye or pigment, and even if the incident angle of light changes, the color expression effect is not reduced, the light according to the viewing direction It is intended to provide a structural chromic yarn in which the interference degree of the color is changed greatly.

Structural chromogenic monofilament (yarn) of the present invention for achieving the above object is a thin film (2) consisting of the main component polymer of the monofilament and the polymer having a different refractive index is arranged at regular intervals between the main component polymer (1) of the monofilament In the structurally chromogenic monofilament having a cross section, the cross sectional shape of the monofilament is a prism-like triangle, and each of the thin films 2 is a concentric circle which is repeatedly arranged in the outer peripheral direction from the center point on the cross section of the monofilament. It is done.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

First, the structural chromogenic monofilament of the present invention, such as the conventional structural chromogenic yarn shown in FIG. 1, the thin films 2 composed of the main component polymer of the monofilament and the polymer having different refractive indices are uniform between the main component polymer 1 of the monofilament. It has cross sections arranged at intervals.

However, the structural chromogenic monofilament of the present invention is a prism-like triangle in the cross-sectional shape of the monofilament, as shown in Figures 2 to 6, each of the thin film (2) is in the peripheral direction from the center point on the cross-section of the monofilament Characterized in that the concentric repeating arrangement.

Figure 2 is a cross-sectional view of an example of the structural chromogenic monofilament according to the present invention, Figures 3 to 4 is an electron micrograph of the cross-section of the structural chromogenic multifilament according to the present invention, Figure 5 is an enlarged electron micrograph 6 is an enlarged electron micrograph of a portion of FIG. 4.

As shown in Figures 3 to 4, the structure-chromic multifilament of the present invention is composed of a plurality, more preferably 12 structure-chromic monofilament. However, the present invention does not specifically limit the number of monofilaments constituting the structure-developing multifilament.

The main component polymer (1) of the structure-chromic monofilament is one selected from the group consisting of polycarbonate resins, polyester resins and polyethylene naphthalate resins, and more preferably polyester resins.

On the other hand, the polymer constituting the thin film (2) is one selected from the group consisting of nylon resin and polymethyl methacrylate resin, more preferably nylon resin.

The number of the thin films 2 arranged in the cross section of the structure-chromic monofilament according to the present invention is 15 to 25, the spacing between the thin film 2 and the thin film 2 is 20 to 400 nm, the thickness of the thin film 2 It is preferable that it is 20-400 nm.

Between the thin film and the thin film, the main component polymer 1 having a thickness of 20 to 400 nm exists in the form of a thin concentric circle.

Therefore, the total number of the thin films 2 composed of the polymer having a different refractive index from the main component polymer and the thin films composed of the main component polymer is 30 to 50 pieces. In addition, the single yarn fineness of the structure-developing monofilament according to the present invention is preferably 1.0 to 8.0 denier.

Structural chromogenic yarn according to the present invention is a cross-sectional shape of the monofilament is a prismatic triangle, as shown in Figures 2 and 6 such that the main component polymer of the monofilament and the polymer having a different refractive index from the main component polymer using a composite spinneret, Each of the thin films 2 may be manufactured by complex spinning to form a concentric circle which is repeatedly arranged in the outer circumferential direction from the center point on the cross section of the monofilament.

According to the present invention, since the thin films 2 made of the main component polymer of the yarn and the polymer having different refractive indices are arranged at regular intervals between the main component polymers 1 in the concentric form described above on the cross section of the yarn, color expression is possible without dyeing. Of course, the color expression effect is excellent even at the angle of incidence of various light, and various colors are expressed according to the viewing direction.

Hereinafter, the present invention will be described in more detail with reference to Examples.

Example  One

The polyester resin is used as the main component polymer (1) of the monofilament, and the nylon resin is used as the resin for the thin film (2), and these are spun together in a cross-sectional form as shown in FIG. Structural monofilaments were prepared.

At this time, the number of thin films 2 of nylon resin was 19, and the thickness of the thin film 2 of nylon resin and the interval therebetween were 100 nm.

Subsequently, the twelve strands of the above-mentioned structurally chromogenic monofilaments were spliced to prepare a structurally chromogenic multifilament.

The produced monochromatic monofilament and multifilament had excellent structural color development, excellent color development effect at various incident angles, and various colors were expressed according to the viewing direction.

Example  2

The polyester resin is used as the main component polymer (1) of the monofilament, and the nylon resin is used as the resin for the thin film (2), and these are composite spun in the cross-sectional form shown in FIG. Structural monofilaments were prepared.

At this time, the number of thin films 2 of nylon resin was 19, and the thickness of the thin film 2 of nylon resin and the interval therebetween were 200 nm, respectively.

Subsequently, the twelve strands of the above-mentioned structurally chromogenic monofilaments were spliced to prepare a structurally chromogenic multifilament.

The produced monochromatic monofilament and multifilament had excellent structural color development, excellent color development effect at various incident angles, and various colors were expressed according to the viewing direction.

Structural chromogenic yarn of the present invention is a thin film (2) consisting of a polymer having a different refractive index than the main component of the yarn is arranged repeatedly in a concentric shape on the cross-section of the yarn can exhibit a color expression effect without dyeing using a dye or pigment, the incident angle of light Even if the degree is changed, the color expression effect is not deteriorated, and the interference of light is changed according to the viewing direction, and thus the color is greatly changed.

Claims (9)

In a structurally chromogenic monofilament having a cross section in which thin films 2 composed of a main component polymer of a monofilament and a polymer having a different refractive index are arranged at regular intervals between the main component polymers 1 of the monofilament, the cross-sectional shape of the monofilament Is a prism-like triangle, and each of the thin films (2) is a chromophoric monofilament, characterized in that it is concentrically arranged in the circumferential direction from the center point on the cross section of the monofilament. The structurally chromogenic monofilament according to claim 1, wherein the main component polymer (1) of the monofilament is a polyester resin and the polymer constituting the thin film (2) is a nylon resin. The structure-developing monofilament according to claim 1, wherein the total number of the thin films in the cross section is 15 to 25. The structure-developing monofilament according to claim 1, wherein the distance between the thin film (2) and the thin film (2) is 20 to 400 nm. The structure-chromic monofilament according to claim 1, wherein the thickness of the thin film (2) is 20 to 400 nm. The monochromatic monofilament according to claim 1, wherein the monofilament fineness of the monofilament is 1.0 to 8.0 denier. The monochromatic filament according to claim 1, wherein the main component polymer (1) of the monofilament is one selected from the group consisting of polycarbonate resins, polyester resins and polyethylene naphthalate resins. The structure-chromic monofilament according to claim 1, wherein the polymer constituting the thin film (2) is one selected from the group consisting of nylon resin and polymethyl methacrylate resin. Multifilament consisting of the chromophoric monofilaments of claims 1 to 8.

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