JP3439188B2 - Strip base material with light reflecting tape inside - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-reflective tape used for shoulder straps such as water bottles, front bands for dog collars or school bags, daily necessities, clothes, and bands widely used in industrial products. The present invention relates to an interior strip-shaped foundation material.

[0002]

2. Description of the Related Art Generally, in order to alert a driver of an automobile or the like when walking at night and to prevent a traffic accident, a portable article such as a pedestrian's clothes or a bag is used as a vehicle light. Many of them are equipped with a light reflection tape that receives and reflects. The light-reflecting tape is a glass bead type in which a coating layer made of a synthetic resin or the like and a reflector such as a glass powder is formed in a sheet shape on the reflecting surface to give light recurrence, or a very small size. There is a prism type prism in which a pyramid prism is formed in a sheet shape.

By the way, in the case of clothes or portable items, especially bands, the above-mentioned light-reflecting tape cut into a predetermined size is referred to as adhesive or adhesion to a ready-made leather or synthetic leather that has been conventionally used. It was attached using means.

[0004]

However, as described above, it is troublesome to attach and attach the light reflecting tape to the ready-made products which have been conventionally used, because an extra manufacturing process is required accordingly. Not only is it troublesome, but it also takes extra time and the manufacturing cost is high. Also, in this case, the reflective tape is often exposed to the outside, and if it is exposed, water drops or stains will adhere in the rain, or the sticking surface will peel off during long-term use. Further, there is a problem that the original brightness cannot be maintained due to rubbing against an object or the surface thereof being damaged, and the reflection performance is remarkably deteriorated so that the effect of calling attention cannot be sufficiently exerted.

This kind of long strip is formed by integrally molding two layers of a colored resin layer and a transparent resin layer, and has a cavity between the colored resin layer and the transparent resin layer along the longitudinal direction thereof. It is not known that a strip portion is formed and a strip-shaped light reflecting tape having a reflecting surface on the transparent resin layer side is inserted into the hollow strip portion. However, it is conceivable to interpose a strip-shaped light-reflecting tape with the reflecting surface being the transparent resin layer side along the longitudinal direction between the colored resin layer and the transparent resin layer and to integrally form by extrusion molding. If the reflecting surface of the reflecting tape is covered with the molten resin, there is a problem that the reflecting performance is reduced as compared with the case where the reflecting surface is covered with the air layer.

Therefore, the present invention has been made to solve the above problems, and can be used as it is as a base material for bands, the molding is simpler and the manufacturing cost can be reduced as compared with the conventional one, and further, it is sufficient for long-term use. An object of the present invention is to provide a belt-shaped base material having a light-reflective tape inside which can withstand the original brightness and can sufficiently exert the effect of calling attention.

[0007]

In order to achieve the above object, a strip-shaped base material in which a light-reflecting tape according to the present invention is incorporated is a strip-shaped base material in which two layers of a colored resin layer and a transparent resin layer are integrally molded. As a base material, a hollow strip is formed along the longitudinal direction between the colored resin layer and the transparent resin layer, and a strip-shaped light reflection having a reflecting surface on the transparent resin layer side is formed in the hollow strip. The tape was inserted.

As described above, the light reflection tape is inserted through the hollow strip formed by the strip-shaped base material between the colored resin layer and the transparent resin layer, and if it is processed as it is and the necessary parts are attached, Since the product is completed, the product can be molded extremely easily, the manufacturing time can be shortened, and the manufacturing cost can be reduced.

In use, since the light-reflecting tape is inserted through the hollow strips and covered with the transparent resin layer, the reflecting surface of the light-reflecting tape is not damaged even if it is rubbed or hit by an object. , The original brightness can always be maintained and the effect of alerting can be fully exerted. Moreover, in this case, a slight air gap is formed between the reflecting surface of the light reflecting tape and the inner surface of the transparent resin layer, so that the reflection performance is deteriorated due to the relationship between the refractive index and the reflectance of light. There is no.

It is preferable that a reinforcing wire is embedded in the colored resin layer along the longitudinal direction thereof. As a result, it is possible to prevent unnecessary elongation of the strip-shaped base material, and also to prevent the risk that the light reflecting tape is broken.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a strip-shaped base material (hereinafter, simply referred to as a strip-shaped base material) in which a light reflecting tape according to the present invention is installed will be described with reference to the drawings. FIG. 1 is a cutaway perspective view showing a part of the strip-shaped base material, FIG. 2 is a cutaway plan view of the same portion, and FIG. 3 is an enlarged sectional view taken along line XX of FIG. In the figure, reference numeral 1 is a strip-shaped base material, which comprises a colored resin layer 2 and a transparent resin layer 3 formed on one side surface of the colored resin layer 2. The two layers of the colored resin layer 2 and the transparent resin layer 3 are made of polyurethane resin, for example, and are integrally molded at the same time by extrusion molding which will be described later and are formed into a long strip shape. The material of the strip-shaped base material 1 may be another resin such as PVC resin or EVA resin, and a flexible resin is selected.

Then, the colored resin layer 2 and the transparent resin layer 3
A hollow strip portion 4 is formed along the center in the longitudinal direction, and a strip-shaped light reflecting tape 5 having a reflecting surface on the transparent resin layer 3 side is inserted into the hollow strip portion 4. . The light reflecting tape 5 is a so-called glass bead type retroreflective tape in which a coating layer composed of a reflector such as glass powder and a synthetic resin is formed on a base cloth such as a woven cloth or a non-woven cloth, and is a cavity to be formed. It has a width substantially the same as the width of the strip portion 4. Moreover, although the colored resin layer 2 and the transparent resin layer 3 are molded at the same time, the transparent resin is not welded to the reflection surface 5a of the light reflection tape 5, and the transparent resin layer is formed in the hollow stripe portion 4. An air layer will be formed between the inner surface 3 a of the light guide tape 3 and the reflecting surface 5 a of the light reflecting tape 5. Thus, the formation of the air layer maintains high brightness.

Next, a method of manufacturing the strip-shaped base material 1 will be briefly described. FIG. 6 shows a schematic side cross section of the die 6 at the tip of the extruder. The die 6 has a first supply pipe 7 for supplying a colored resin C that is heated and melted, and a second supply pipe 8 for supplying a transparent resin T that is overheated and melted.
Are respectively arranged. The outlets 7a and 8a of the first and second supply pipes 7 and 8 are adjacent to each other at the lower position and the upper position, respectively, and further toward the tip end, one discharge communicating with the first and second supply pipes 7 and 8. The pipe 9 is continuously provided. As a result, the melted resins C and T merge at the outlets 7a and 8a and are discharged in two layers.

Outlets 7a, 8 of the first and second supply pipes 7, 8
An insertion port 10 that communicates with the discharge pipe 9 is provided between a, and the two layers of the resin C, which are two layers, are inserted from the insertion port 10 into the discharge pipe 9.
The light reflecting tape 5 is introduced as T is discharged. At the same time, a predetermined amount of air is supplied from the insertion port 10 into the discharge pipe 9 per unit time. In this way, the two layers of both resins C and T extruded from the die 6 are cooled water tanks (not shown).
To be solidified by cooling. As a result, as shown in FIG. 3, the two layers of the colored resin layer 2 and the transparent resin layer 3 are formed by integral molding, and between the colored resin layer 2 and the transparent resin layer 3 along the longitudinal direction thereof. The hollow strip portion 4 is formed. Then, the strip-shaped light-reflecting tape 5 having the reflecting surface 5a on the transparent resin layer 3 side is inserted into the hollow portion 4.

The band-shaped base material 1a shown in FIGS. 4 and 5 is related to another embodiment, and its configuration is substantially the same as that of the present embodiment. Therefore, the same parts are designated by the same reference numerals. Detailed explanation is omitted. That is, in the colored resin layer 2, for example, two reinforcing wire rods 11 made of glass fiber are embedded along the longitudinal direction of the colored resin layer 2. This is because the strip-shaped base material 1a is made of a synthetic resin, so that unnecessary extension is prevented depending on the method of use. The reinforcing wire 11 may be made of metal other than glass fiber, and the number thereof may be one or three or more as required.

The strip-shaped base material 1 thus formed is
1a is usually wound for a predetermined length, packed and shipped. Then, it is delivered to each manufacturer that manufactures shoulder straps for water bottles, bands for trousers, bands for watches, front bands for school bags, hanging bands for mobile phones, dog collars, etc. Accessories such as gold are attached and used as it is as a band. The color of the colored resin layer 2 is selected depending on the product in which the band is used.

Therefore, the strip-shaped base materials 1, 1a according to the present invention
When used as a shoulder strap for a water bottle, for example, when the light reflecting tape 5 is inserted into the hollow strip portion 4 formed between the colored resin layer 2 and the transparent resin layer 3, it is possible to walk at night. For example, when a light of an automobile or the like hits, the light is clearly reflected to call the driver's attention, and a traffic accident can be prevented. Further, since the reflection tape 5 is completely protected by the transparent resin layer 3, the reflection surface 5a of the light reflection tape 5 is not damaged even when it is rubbed or hit with an object, and the original high brightness is maintained. The effect of alerting can be fully exerted. Further, since the width of the light reflection tape 5 is narrower than the width of the strip-shaped base materials 1 and 1a and can be seen as one stripe, the light-reflective tape 5 is attached so as to cover the entire one side surface of the strip-shaped base materials 1 and 1a. Compared with the design, it has high commercial value.

In the present invention, the light reflecting tape 5
As the reflective surface, a glass bead type was mainly used, but it is needless to say that a prism type or other reflective tape may be used.

[0019]

As described above, in the strip-shaped base material according to the present invention, the two layers of the colored resin layer and the transparent resin layer are formed by integral molding, and the cavity formed along the longitudinal direction therebetween. With a novel structure in which a strip-shaped light-reflecting tape with the reflective surface being the transparent resin layer side is inserted in the strip, it can be used as it is as a base material for various bands,
Various types of bands incorporating this seed light reflection tape can be formed more easily than before, and the manufacturing cost can be reduced. Furthermore, since the band-shaped light-reflecting tape is completely protected by being covered with the transparent resin layer, the reflecting surface of the light-reflecting tape will not be damaged even if it is rubbed or hit by an object during use. The effect of being able to maintain and fully exerting the effect of calling attention.

By embedding a reinforcing wire in the colored resin layer along its longitudinal direction, it is possible to prevent unnecessary elongation of the strip-shaped base material, which may cause the light reflecting tape to break. Is also prevented, and there is an effect that it can withstand long-term use sufficiently.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of a strip-shaped base material in which a light reflection tape according to the present invention is installed.

FIG. 2 is a cutaway plan view of the same portion.

3 is an enlarged sectional view taken along line XX in FIG.

FIG. 4 is a plan view of a strip-shaped base material in which a light reflection tape having a reinforcing wire embedded therein is installed.

5 is an enlarged cross-sectional view taken along line YY of FIG.

FIG. 6 is a schematic view showing a method for forming a strip-shaped base material having a light reflecting tape provided therein.

[Explanation of symbols]

1 band-shaped foundation material 2 Colored resin layer 3 Transparent resin layer 4 hollow strip 5 Light reflection tape 5a reflective surface 11 Reinforcing wire

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Rinji Koike 2-15-14 Kikuzumi, Minami-ku, Aichi Prefecture Kochi Rikagaku Kogyo Co., Ltd. Within Kagaku Kogyo Co., Ltd. (56) Reference JP-A-9-313240 (JP, A) JP-A-10-147761 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) B32B 1 / 00-35/00 B29C 47/00-47/96 G02B 5/00-5/136

Claims (2)

(57) [Claims] 1. A strip-shaped base material formed by integrally molding two layers of a colored resin layer and a transparent resin layer, wherein a hollow strip is provided between the colored resin layer and the transparent resin layer along the longitudinal direction thereof. A strip-shaped base material having a light-reflecting tape inside, wherein a strip-shaped light-reflecting tape having a reflecting surface on the transparent resin layer side is inserted into the hollow strip portion. 2. A strip-shaped base material formed by integrally molding two layers of a colored resin layer and a transparent resin layer, wherein a hollow strip is provided between the colored resin layer and the transparent resin layer along the longitudinal direction thereof. And a strip-shaped light-reflecting tape having a reflecting surface on the transparent resin layer side is inserted into the hollow strip portion to prevent unnecessary extension of the strip-shaped base material along the longitudinal direction in the colored resin layer. A strip-shaped base material with a light-reflective tape inside, which is characterized by embedding a reinforcing wire.