JP3025193U - Retroreflective decorative thread - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a retroreflective decorative yarn which has excellent visibility as compared with a conventional reflective sheet using glass beads and can be easily introduced as a fibrous body into clothes or the like. [Structure] A transparent resin base layer 2 and a large number of retroreflective microprisms 6 are densely arranged such that their entrance / exit surfaces 6a and reflection surfaces 6b face the front surface and the back surface, respectively. A laminate 1 composed of a resin prism layer 3 laminated on the rear surface of the resin base layer 2 and a metal thin film layer 4 laminated on the rear surface of the resin prism layer 3 is cut into a narrow width.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a retroreflective decorative thread which is attached to clothes or the like to improve the visibility and ensure safety by retroreflection.

[0002]

[Prior art]

 As a means for increasing the visibility by retroreflection, a reflection sheet in which a large number of glass beads are densely arranged on a reflection surface has been conventionally known.

However, the above-mentioned reflection sheet according to the prior art collects the light rays emitted from the light source by each glass bead and reflects them on the reflection surface to return them toward the light source. Therefore, the reflection area is small. It is difficult to obtain high visibility, and since many glass beads are used, it is difficult to process them into a thread shape, and there is a problem that they cannot be introduced as a fibrous body into clothes or the like.

[0004]

[Problems to be solved by the device]

 An object of the present invention is to provide a retroreflective decorative yarn which is superior in visibility as compared with a conventional reflective sheet using glass beads and which can be easily introduced as a fibrous body into clothes or the like.

[0005]

[Means for Solving the Problems]

 The retroreflective decorative yarn according to claim 1 according to the present invention comprises a transparent resin base layer and a large number of retroreflective fine prisms densely arranged so that their entrance and exit surfaces and the reflection surfaces face the front and back surfaces, respectively. A laminate formed by arranging the resin prism layer laminated on the back surface of the resin base layer and a metal thin film layer laminated on the back surface of the resin prism layer on the surface of the resin prism layer. Is. In this retroreflective decorative yarn, the light rays emitted from the light source pass through the resin base layer from the front surface to the back surface thereof, and enter the resin prism layer from the entrance / exit surface of each fine prism on the surface, and the resin prism Each of the fine prisms on the back side of the layer is sequentially reflected by a plurality of reflecting surfaces, or is transmitted through them to be reflected by the metal thin film layer and is inverted and transmitted through the resin prism layer from the back side to the front side. The light is emitted from the entrance / exit surface of each fine prism on the front surface, passes through the resin base layer from the back surface to the front surface, and returns in the direction of the light source as reflected light with metallic luster.

In the retroreflective decorative yarn according to a second aspect of the invention, in the laminated body having the above structure, a transparent resin coating layer exhibiting an iridescent or iridescent color is laminated on the surface of the resin base layer. In this retroreflective decorative yarn, the reflected light of metallic luster is mixed with the reflected light of iridescent or iridescent color originating from the resin coating layer.

Further, in the retroreflective decorative yarn according to a third aspect of the invention, in the laminated body having the above structure, the resin base layer has a transparent colored layer on at least one surface thereof. In this retroreflective decorative yarn, the metallic luster reflected light and the iridescent or iridescent reflected light mixed with the metallic luster reflected light are colored by a coloring layer.

The retroreflective decorative yarn may be twisted around the core yarn or in a coreless manner with the surface of the resin base layer facing outside. As the resin base layer, for example, a known polyester film or the like can be preferably adopted. The resin prism layer has a structure disclosed in, for example, Japanese Patent Publication No. 60-56103 or Japanese Patent Publication No. 62-13915, and more specifically, "reflexite" (a rice with a tetrahedral fine prism) (US). A retroreflective sheet manufactured by National Reflectite Co., Ltd.) can be preferably used. The metal thin film layer can be formed by, for example, vapor deposition or sputtering of aluminum or other metal, and a protective film layer may be laminated on the back surface of the metal thin film layer as necessary. Further, the resin coating layer has, for example, a structure disclosed in Japanese Patent Publication No. 04-040681, specifically, an "iridescent film" (U.S.M. A light-reflecting multilayer film manufactured by a company) or the like can be preferably used. The colored layer may include a pattern or a pattern.

[0009]

【Example】

 FIG. 1 is a sectional view of a retroreflective decorative thread according to the first embodiment of the present invention. In the figure, the retroreflective decorative thread is obtained by cutting the laminate 1 into a narrow width, and the laminate 1 has a transparent resin base layer 2 and an adhesive (not shown) on the back surface of the resin base layer 2. ), A metal thin film layer 4 laminated on the back surface of the resin prism layer 3 by metal deposition, and a resin base layer 2 on the surface of which is provided with an adhesive (not shown). It is composed of a transparent colored layer 5.

The resin prism layer 3 is composed of a large number of tetrahedral retroreflective fine prisms 6 densely arranged so that the entrance / exit surface 6a and the reflective surface 6b thereof face the front surface and the back surface, respectively. The surface thereof is laminated on the back surface of the resin base layer 2.

The colored layer 5 may be arranged on the back surface of the resin base layer 2 so as to be sandwiched between the resin base layer 2 and the surface of the resin prism layer 3 instead of or in addition to the above-mentioned arrangement. It may be omitted if the coloring of the reflected light is unnecessary.

FIG. 2 is a sectional view of a retroreflective decorative thread according to a second embodiment of the present invention. The retroreflective decorative yarn shown in the figure is obtained by laminating a transparent resin coating layer 7 having a rainbow color or an iridescent color on the transparent colored layer 5 in the first embodiment through an adhesive (not shown). Other than that, the configuration is similar to that of the first embodiment. In this case, the colored layer 5 may be made of an adhesive for laminating the resin coating layer 7 described above.

The colored layer 5 may be provided on the back surface of the resin base layer 2 so as to be sandwiched between the resin base layer 2 and the surface of the resin prism layer 3 instead of or in addition to the above-mentioned deployment. It may be omitted if the coloring of the reflected light is unnecessary. When the colored layer 5 is omitted or provided only on the back surface of the resin base layer 2, the resin coating layer 7 is laminated on the front surface of the resin base layer 2.

[0014]

[Effect of device]

 The retroreflective decorative yarn according to claim 1 according to the present invention is constructed as described above, and the light emitted from the light source is reflected by the fine prisms of the resin prism layer a plurality of times and then is reflected by the metallic luster. As it returns to the direction of the light source as a light source, it has a greater retroreflecting effect than the conventional reflection sheet using glass beads and has excellent visibility.In addition, since a resin prism layer is adopted as a retroreflecting means, narrow cutting is also possible. Since it is easily possible, it can be easily introduced as a fibrous body into clothes and the like.

Further, in the retroreflective decorative yarn according to claim 2, since the reflected light of metallic luster is mixed with the reflected light of iridescent or iridescent color derived from the resin coating layer, it is unique and excellent. Visibility is obtained.

Further, in the retroreflective decorative yarn according to claim 3, the metallic luster reflected light and the iridescent or iridescent reflected light are mixed with the metallic luster reflected light and colored by the coloring layer. Also in this case, excellent visibility can be obtained.

[Brief description of drawings]

1 is a cross-sectional view of a retroreflective decorative yarn according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of a retroreflective decorative yarn according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Laminated body 2 Resin base layer 3 Resin prism layer 4 Metal thin film layer 6 Fine prism 6a Entry / exit surface 6b Reflection surface

Claims (3)

[Scope of utility model registration request] 1. A transparent resin base layer and a large number of retroreflective microprisms are densely arranged so that their entrance / exit surfaces and reflection surfaces face the front surface and the back surface, respectively, and the resin base layer on the surface thereof. A retroreflective decorative thread obtained by cutting a laminate having a resin prism layer laminated on the back surface and a metal thin film layer laminated on the resin prism layer back surface into a narrow width. 2. A transparent resin base layer and a large number of retroreflective microprisms are densely arranged so that their entrance and exit surfaces and reflection surfaces face the front surface and the back surface, respectively, and the resin base layer on the surface thereof. A laminated body composed of a resin prism layer laminated on the back surface, a metal thin film layer laminated on the resin prism layer back surface, and a transparent resin coating layer exhibiting an iridescent or iridescent color laminated on the surface of the resin base layer is finely divided. Retroreflective decorative thread cut into width. 3. The retroreflective decorative yarn according to claim 1, wherein the resin base layer has a transparent colored layer on at least one surface thereof.