JPH08337951A - String-like material - Google Patents

Abstract

PURPOSE: To obtain a rope readily visible regardless of an incidence direction of light rays in use at night and a watching angle, by using a part of returning reflection yarn to form a string-like material. CONSTITUTION: One side or both sides of a polyester film having 25μm thickness are provided with an aluminum deposited layer. Plastic or glass beads are scattered and fixed through a polyester-based resin binder to the one side or the both sides of the film to form a bead layer. In case the one side is treated, two sheets of the polyester films are laminated so as to lay the polyester films inside and the laminate is thinly cut to give returning reflection yarn. Woven and knitted fabric or a thin linear material such as a braid, a twisted material, etc., using yarn, tape, metal yarn, metal wire, etc., such as polypropylene yarn is combined with the returning reflection yarn to form the objective string-like material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drawstring for animals such as dogs, cats and rabbits, a rope for sailing a yacht, and a string-like object such as a lifeline for ensuring the safety of human beings when used at night. Relates to a particularly useful string.

[0002]

2. Description of the Related Art A string-like material has been known in which a normal reflection tape is attached to the surface so as to have a reflectivity so that the string-like material can be lit by reflection of light rays when used at night (Actual Kaihei 1-6876).
(See Japanese Patent Publication No. 7).

[0003]

However, in the conventional string-like object, since the reflection direction of the light ray on the ordinary reflection tape is constant reflection, the reflected light may be reflected depending on the incident direction of the light ray or the viewing angle. I didn't see it. In addition, the surface of the string-like object on which the ordinary reflective tape was not attached had no reflectivity. Further, since the ordinary reflection tape is simply pasted on the surface, the reflection tape is easily peeled off during use. The present invention eliminates the above drawbacks.

[0004]

That is, the present invention is
In a string-like material made of woven fabric, knitted fabric, braid, twisted product, etc. using thin wire-shaped material such as thread, tape, metal thread, metal wire, etc., at least a part of the thin wire-shaped material is a return reflective thread. It is a string-like object characterized by.

In the present specification, the string-like object is all kinds of ropes, ropes, ropes, ropes for sailing sailboats, ropes for sailing sailboats, life ropes, etc. including.

The string-like material is made of a woven fabric, a knitted fabric, a braid, a twisted product, or the like. There is no limitation on the state of use of the woven fabric, knitted fabric, braid, twisted product, or the like that forms the string-like material. For example, a cord-shaped product assembled with or without an appropriate core thread or core material, or a cord-shaped product in which a suitable core body is used as a center and the periphery thereof is covered with a woven or knitted fabric in a tubular shape. , A string-like object twisted like a rope, and the like.

A woven fabric, a knitted fabric, a braided product, a twisted product and the like can be obtained by weaving, knitting, braiding, twisting and the like using a fine wire.

[0008] The fine line-shaped material is a variety of conventionally known threads,
Tape, metal thread, metal wire, etc., woven fabric, knitted fabric, braid,
It can be used as a twisted product.

In the present invention, at least a part of the fine linear material is made of the reflective reflective yarn. That is, all or part of the woven fabric, knitted fabric, braid, twisted product, etc. is made of the reflective reflective yarn. Since the reflection of the light ray is not regular reflection but diffuse reflection or diffuse reflection, the reflected light enters the eye regardless of the incident direction of the light ray or the viewing angle.

The recursive reflective yarn in the present specification is a filamentous yarn as long as the reflection of the light ray is not regular reflection but diffuse reflection or diffuse reflection, and the reflected light enters the eye regardless of the incident direction of the light ray or the viewing angle. It may be tape-shaped.

The specific structure of the returnable reflective yarn is not limited. The following may be mentioned as specific examples of the returnable reflective yarn. An appropriate undercoating layer such as an undercoating layer is provided on one surface of the plastic film, and Al, Cr, Ag, Z is formed on the undercoating layer by a thin film forming method such as vacuum deposition, sputtering or ion plating.
Providing a metal thin film layer using various metals and alloys such as n,
A plastic film is prepared by directly or directly providing a protective layer of an appropriate resin on the metal thin film layer, and coating the bead layer on the protective layer with a resin in which plastic or glass beads are appropriately mixed. Two reflective reflective yarns are attached inside. A recursive reflective yarn in which a metal thin film layer is provided on one or both sides of a plastic film, but a bead layer of plastic or glass is provided on one or both sides. The bead layer is
It may be provided by coating a resin in which plastic or glass beads are appropriately mixed, but before forming the appropriate resin layer and drying the resin layer, the plastic or glass beads are appropriately sprayed on the surface of the resin layer. It may be adhered and provided.

The actual production of these reflective reflective yarns can be carried out by cutting a wide and long plastic film provided with a metal thin film layer and a bead layer into a vertically long shape.
The returnable reflective yarn may be appropriately colored by coloring the plastic film with a coloring coating with a dye, coloring the resin into which beads are appropriately mixed by adding a dye, or the like.

Further, the returnable reflective yarn may be the structure of the returnable reflective yarn as exemplified above and as it is, that is, a flat returnable reflective yarn, but the flat returnable yarn exemplified above and above is an appropriate yarn. It is also possible to use a twist-returning reflective yarn, such as a round twist using as a core yarn.

Further, the flat reflex reflective yarn or the twist reflex reflective yarn is dipped in an appropriate resin solution in the state of the flat reflex reflective yarn, and the entire surface of the flat reflex reflective yarn is covered with a resin. For example, since the cross section (edge portion) is particularly protected by the resin, acid resistance, alkali resistance, chemical resistance, solvent resistance, light resistance, etc. are greatly improved.

EXAMPLE A polypropylene thread and a reflexive reflective thread were used as fine filaments, and two 840 denier polypropylene threads were used for 14 strokes. A flat reflexive reflective thread 1 mm wide × obtained as follows:
A total of 16 strokes of 2 strokes with 2 strokes and a braid with a thickness of 6 mmφ
It was manufactured as a cored braid made of nylon and polypropylene to obtain a cord-like material according to the present invention. In the obtained string-like material, the returnable reflective yarns are projected on the surface at intervals of 16 mm to 20 mm in the longitudinal direction, and since the returnable reflective yarns are spirally incorporated, it can be confirmed from the entire surface of the strap-like product. Even at night, the reflected light entered the eye regardless of the incident direction of the light beam and the viewing angle, and the existence of the string-like object was easily confirmed. In addition, the existence of the string-like object could be easily confirmed regardless of whether the string-like object was twisted or not. (Returning reflective yarn) 450 μm thick as a metal thin film layer on one side of 25 μm thick polyethylene terephthalate film.
Å Al vapor deposition layer is provided by vacuum vapor deposition, a polyester resin layer is formed on the Al vapor deposition layer, and before the polyester resin layer dries, plastic beads are scattered and adhered to the surface of the polyester resin layer. Two pieces each provided with a bead layer and a piece obtained by adhering a polyethylene terephthalate film on the inside were cut into a long length to obtain a flat reflex reflective yarn.

[0016]

EFFECTS OF THE INVENTION The cord-like material according to the present invention has at least a part of the reflective filament as a fine wire-like material used for a woven fabric, a knitted fabric, a braid, a twisted product, etc. which constitute the cord-like material. Therefore, it has the following effects. That is, since the light rays are not regular reflections but diffuse reflections or diffuse reflections in the return reflective yarn, the reflected light enters the eye regardless of the incident direction of the light rays or the viewing angle. Therefore, if the string-like object according to the present invention is used for a drawstring of animals such as dogs, cats, and rabbits, ropes for sailing a yacht, a lifeline for ensuring the safety of people, etc., when using them at night Has
Since the reflected light enters the eye regardless of the incident direction of the light ray and the viewing angle, it is very easy to check the string-like object and the one connected to it. In this respect, in the conventional string-like object, since the reflection direction of the light ray on the ordinary reflection tape is constant by regular reflection, the reflected light does not enter the eye depending on the incident direction of the light ray or the viewing angle. Further, since the cord-like material according to the present invention is made of a woven fabric, a knitted fabric, a braid, a twisted product, etc., it is possible to obtain reflectivity on any surface of the cord-shaped material. In this respect, the conventional string-like material has no reflectivity on the surface of the string-like material to which the ordinary reflective tape is not attached. Furthermore, since the returnable reflective yarn is made into a woven fabric, a knitted fabric, a braid, a twisted product, etc., it does not fall off even if it is cut and does not come off from the woven fabric, the knitted fabric, the braided product, the twisted product, etc. In this respect, since the conventional string-like material is simply a regular reflection tape attached to the surface, the reflection tape is easily peeled off during use.

Claims (3)

[Claims] 1. A cord-like material comprising a woven fabric, a knitted fabric, a braid, a twisted product or the like using a thin wire-shaped material such as a thread, a tape, a metal thread, a metal wire, etc. A string-like object characterized by being a reflective thread. 2. A recursive reflective yarn, wherein a metal thin film layer is provided on one side of a plastic film, and a plastic or glass bead layer is provided on the metal thin film layer, two plastic films are attached inside. The string-like material according to claim 1, which is a thing. 3. The cord according to claim 1, wherein the returnable reflective yarn is a plastic film provided with a metal thin film layer on one side or both sides thereof, and a bead layer of plastic or glass provided on one side or both sides of the plastic film. Stuff.