KR101883093B1 - Retroreflecting strap using sheet with retroreflecting function - Google Patents

Abstract

The present invention relates to a retroreflective band obtained by cutting a retroreflective sheet, which enables retroreflection and has excellent light emitting effects even after the elapse of a predetermined period while lowering manufacturing cost, into a band shape. According to an embodiment of the present invention, the retroreflective band includes a sheet for enabling retroreflection. The sheet for enabling retroreflection includes a first spun fiber layer (10) which is made of one or more synthetic resin fiber materials in a group including polyethylene (PE) and polyethylene terephthalate (PET) materials having a frame-retardant treatment executed thereon; a second spun fiber layer which is made of a mixture of a fiber material with a low melting point and one or more synthetic resin fiber materials in a group including PE and PET materials having the frame-retardant treatment and an ultraviolet (UV) coating treatment executed thereon while being laminated on the upper surface of the first spun fiber layer (10); and multiple retroreflective sheets which are in a curved form to reflect the light at all angles and are laminated on the second spun fiber layer while being spaced apart.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a retroreflective sheet for a retroreflective sheet,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retroreflective band using a sheet capable of retroreflective reflection as a retroreflective layer is laminated on a top surface at a predetermined interval.

Generally, a helmet worn by a soldier has no light device, so that the helicopter can be attached to the helmet or the subcommittee can illuminate the movement path to the flashlight so that the subordinates can move along behind the preceding platoon.

In this case, the subordinates near the platoon can easily find obstacles in the movement path, but the platoon on the back can be injured because they can not find obstacles, and there is also the risk of exposure to the enemy by using the flash. Korean Utility Model Laid-Open No. 92-8765 discloses a safety helmet having a warning light emitting face plate such as a helmet having a light emitting portion and a public utility model No. 93-10215.

(Patent Document 1) Published Utility Model Publication No. 92-8765 A

(Patent Document 2) Published Utility Model Publication No. 93-10215 A

The structure of these helmets is such that a light emitting portion is provided on the outer periphery of the helmet and the light emitting portion is arranged in a structure by lighting the light emitting diodes by a dry battery at night and the light emitting paint is applied to the outer periphery of the helmet, The light emitting effect can be obtained, but such a structure has not been practically used.

The structure of such a helmet has a high manufacturing cost and a problem that the light emitting part easily breaks down because the helmet is used during the use, and when the light emitting paint is applied, the luminescence is remarkably reduced after a certain period of time, And the luminescent coating material is peeled off, resulting in poor practicality.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the conventional art described above, and it is based on the problem of providing a retroreflective band using a retroreflective sheet capable of lowering the manufacturing cost.

 Also, there is provided a retroreflective band using a retroreflective sheet, a helmet with the retroreflective band, and a night moving guide marking, which can solve the problem that the luminous intensity drops remarkably after a certain period of time when the light emitting paint is applied to the helmet .

The above-described object of the present invention is achieved by providing a retroreflective band in which a sheet capable of retroreflective reflection is cut into strips.

According to a preferred aspect of the present invention, the recursive reflection sheet includes a first radiation fiber layer formed of at least one synthetic resin fiber material selected from the group consisting of polyethylene (PE), polyethylene terephthalate (PET) At least one synthetic resin fiber material and a low-melting-point fiber material, which are laminated on the upper surface of the first radiation-absorbing fiber layer and are made of polyethylene (PE) or polyethylene terephthalate (PET) And a retroreflective sheet which is curved so as to allow reflection of light at all angles and on which a plurality of spaced apart layers are stacked.

According to a preferred feature of the present invention, mutually corresponding fastening portions are formed on both sides of the retroreflective band.

The above-described object of the present invention is also achieved by providing a night moving route marking using the helmet with the above-described recursive reflection band and the above-described recurrent reflection band.

According to the present invention, the retroreflective sheet can be retroreflected in all directions by attaching the retroreflective sheet in a curved shape instead of being attached in a planar form, The light emitting diode is not used, and the light emitting coating material may not be used.

Further, according to the retroreflective band, the helmet and the night travel guide mark using the retroreflective sheet according to the embodiment of the present invention, the visibility can be further increased, particularly to the body of the soldier or various equipments, It has the advantage of enabling safe movement and training.

1 is a perspective view of a sheet capable of retroreflective reflection according to an embodiment of the present invention;
Fig. 2 is a cross-sectional structural view of a retroreflective sheet in a retroreflective sheet according to an embodiment of the present invention; Fig.
3 is a flowchart of a manufacturing process of a sheet capable of retroreflective reflection according to an embodiment of the present invention.
FIG. 4 is a view showing a manufacturing process of a retroreflective sheet using a plate mold in a sheet capable of retroreflective reflection according to an embodiment of the present invention. FIG.
5 is a view showing a manufacturing process of a retroreflective sheet using a vacuum molding machine in a sheet capable of retroreflective reflection according to an embodiment of the present invention.
6 is a view showing a manufacturing process of a retroreflective sheet using a roll mold in a sheet capable of retroreflective reflection according to an embodiment of the present invention.
7 is a perspective view of a retroreflective band using a retroreflective sheet according to an embodiment of the present invention;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood that the same is by way of illustration and example only and is not to be taken by way of limitation, the scope of the present invention being limited only by the terms of the appended claims.

According to one embodiment of the present invention, the retroreflective band may be formed by cutting the sheet 1 capable of retroreflective reflection into a strip shape.

The recursive reflective band comprises the steps of: producing a sheet (1) capable of retroreflective; And a step of cutting the retroreflective sheet (1) into a strip shape.

Hereinafter, the sheet 1 capable of retroreflective reflection and its manufacturing method will be described in more detail.

1, a sheet 1 capable of reflex reflection according to an embodiment of the present invention includes at least one of synthetic resin fibers of polyethylene (PE) and polyethylene terephthalate (PET) (PE) material and a polyethylene terephthalate (PET) material laminated on the upper surface of the first radiation layer 10 and subjected to a flame retardation treatment and a UV coating treatment, a second radiation fiber layer 20 formed by mixing at least one synthetic resin fiber material and a low melting point fiber material among the second radiation fiber layer 20 and the second radiation fiber layer 20 so as to be able to reflect light at all angles, And a retroreflective sheet 30 on which a plurality of spaced apart reflective sheets 30 are stacked.

As shown in FIG. 3, the sheet 1, which is capable of reflex reflection according to an embodiment of the present invention, includes at least one synthetic resin fiber (PE) or polyethylene terreter A first step (S1) of producing a master batch by mixing phosphorus (P) powders in an amount of 4,000 to 10,000 ppm in a chip, a master batch (S1) A second step S2 of producing a flame-retardant synthetic resin fiber material by spinning the flame-retardant synthetic resin fiber material, and a second step S2 of forming a flame- A fourth step (S4) of UV-treating and dyeing the flame-retardant synthetic resin fiber material produced in the second step (S2), and a fourth step (S4) of UV- Flame retardant synthetic resin fiber material, low melting point island A fifth step (S5) of mixing the ash in an amount of 10 to 20% by weight and then producing a second radiation layer (20) in the form of a plate through a roller; A sixth step S6 of laminating the second radiation fiber layer 20 produced in the fifth step S5 on the fiber layer 10 and a sixth step S6 of laminating the second radiation layer 20 on the retroreflective sheet 30 so as to form a plurality of curved portions 30a, And a seventh step (S7) of cutting out only the curved surface portion (30a) and then laminating the curved surface portion (30a) so as to be spaced on the second radiation-absorbing fiber layer (20) have.

Here, the first radiation layer 10 forms a lower layer of the recursive reflection sheet 1 according to an embodiment of the present invention, which is in contact with the ground surface of the road surface. The first radiation layer 10 may be made of polyethylene (PE) (P) powders in an amount of 4,000 to 10,000 ppm, preferably 5,000 ppm, in at least one of polyethylene terephthalate (PET) powders.

The polyethylene (PE) fiber material or the polyethylene terrephthalate (PET) fiber material applied to the first radiation fiber layer 10 is stronger than the conventional polyester (PP) fiber material in direct sunlight and has excellent strength.

In addition, when the first radiation layer 10 is made of at least one of polyethylene (PE) or polyethylene terephthalate (PET) fiber, it is inevitably weak against fire due to its material properties. Therefore, , Especially phosphorus (P) powder.

On the above-described first radiation layer 10, the second radiation layer 20 is laminated by various methods such as, for example, heat fusion or needle punching.

The second radiation fiber layer 20 forms a lower layer of the recursive reflection sheet 1 according to an embodiment of the present invention and is made of polyethylene (PE) powder and polyethylene terreterphthalate (PET) powder (P) powders are mixed in an amount of 4,000 to 10,000 ppm, preferably 5,000 ppm, at least one of which is UV-cured, and the low-melting-point fiber material is added to the spinning material in an amount of 10 to 20 wt% 15% by weight.

The polyethylene (PE) fiber material or the polyethylene ter- perephthalate (PET) fiber material applied to the second radiation-absorbing fiber layer 20 is stronger than the conventional polyester (PP) fiber material in direct sunlight and has excellent strength.

In addition, when the second radiation layer 20 is made of at least one of polyethylene (PE) or polyethylene terephthalate (PET) fibers, it is inevitably weak against fire due to its material properties. Therefore, , Especially phosphorus (P) powder.

The low melting point fiber material added to the second emissive fiber layer 20 may be made of, for example, polyethylene (PE) or polyethylene terrephthalate (PET) The bonding strength with the first radiation-absorbing fiber layer 10 is increased.

In addition, the low melting point fiber material added to the second spinning fiber layer 20 can be formed by, for example, melting at the time of heat fusion and forming a smooth surface layer on the surface of the second spinning fiber layer 20, .

According to the present invention, since the low melting point fiber material is used, the present invention can quickly and easily bond without causing any pollution, (Non-woven fabrics) are mutually overlaid to produce a single product, an adhesive such as a water-soluble chemical bond or a phenolic resin-based adhesive resin is applied between the fibers, and then heat treatment So that they have been bonded. However, this method requires a lot of working time and labor, and the adhesive has many hazards to the human body and pollution, and thus has many problems such as causing a poor working environment and air pollution. That is, when a plurality of layers of fibers are adhered to each other to produce a predetermined thickness of fiber material, the chemical adhesive is applied to the whole surface of one fiber sheet, The toxic gas emitted by the chemical adhesive and the bad odor cause the working environment of the worker to be extremely poor. In addition, when the adhesive agent is applied to the body of the worker in the course of the work, the adhesive force causes many difficulties.

In the present invention, a low melting point short staple fiber for bonding is manufactured by using a low melting point fiber material. Then, the staple fiber is stuck between the fibers and then heated by a heating roller. So that the fibers are melted by the heat so that they are integrally bonded to each other.

The low melting point fiber (LMF) is a fiber material of at least one selected from the group consisting of polyurethane (PU), polyethylene (PE) and low melting point polyester (LMP).

Further, it is preferable that the second radiation-absorbing fiber layer 20 is less UV-curable by sunlight, and is UV-cured so as to be strong against chemicals and the like. Further, it is preferable that the second radiation fiber layer 20 is dyed with green or blue for the harmony with the surrounding natural environment, the camouflage which prevents soldiers from being exposed to the enemy, and the enhancement of the appearance beauty.

The retroreflective sheet 30 is laminated on the above-described second radiation-absorbing fiber layer 20 by various methods such as heat-sealing or needle punching.

2, a retroreflective projection is formed on the lower surface of a polycarbonate (PC) sheet 31 serving as a base by an ultraviolet ray hardening resin material 33, and a polycarbonate (PC) sheet And a UV coating layer 35 is formed on the upper surface of the sheet 31 for preventing contamination or scratching.

The retroreflective sheet 30 is attached to soldiers moving at night, a helmet of a climber, a helmet of a bicycle driver, or the like to increase visibility. The retroreflective sheet 30 is curved so that retroreflection can easily occur in all directions. It is preferable that a plurality of the second radiation-absorbing fiber layers 20 are separated from each other and laminated.

4, the retroreflective sheeting 30 includes a step of applying a transparent ultraviolet-curing resin material 33 onto a plate-like mold 3 provided with concavities and convexities 3a, a step of forming a polycarbonate (PC) sheet (PC) sheet 31 is pressed onto the plate mold 3 with a pressure roller 4, and the ultraviolet lamp 5 (5) is placed on the UV- ), And then separating the polycarbonate (PC) sheet 31 from which the recursive reflection projections of the UV-curable resin material 33 are integrated from the plate mold 3, .

As the UV curable resin material 33, various curing agents having an isocyanate group, an epoxy group and an aziridine group may be used depending on the type of the polymer. These reactive groups are reacted with a hydroxyl group, an amino group, a carboxyl group, Cured. Accordingly, when a polyacrylic resin is used as the polymer, it is preferable that an isocyanate free from yellowing is used as a curing agent.

5, the polycarbonate (PC) sheet 31 is placed on a vacuum molding machine 6 having a hole 6a formed in the upper surface thereof, Forming a curved surface portion 30a by partially pressing into the hole 6a of the vacuum molding machine 6 by vacuum molding and cutting the curved surface portion 30a.

The vacuum molding machine 6 has a box shape in which a plurality of holes 6a communicating with the internal space are formed on the upper surface of the vacuum molding machine 6 and a vacuum pump for forming a negative pressure in the internal space of the vacuum molding machine 6 As shown in FIG. The polycarbonate (PC) sheet 31 is heat-treated so that the polycarbonate (PC) sheet 31 can be easily introduced into the hole 6a by the internal sound pressure of the vacuum molding machine 6 on the upper side of the vacuum molding machine 6 It is preferable that a heating heater 7 is provided.

In the present invention, the retroreflective sheet 30 is not laminated as a plate but cut in the form of a curved surface portion 30a and laminated on the second radiation layer 20.

6, the retroreflective sheet 30 includes a step of taking out a polycarbonate (PC) sheet 31 wound on a roll, a step of forming a roll-shaped mold 3 'having concavities and convexities 3a' (PC) sheet 31 is guided between the roll mold 3 'and the pressurizing roller 4' to be heated and compressed, and the roll-shaped mold 3 'and the pressurizing roller 4' The polycarbonate (PC) sheet (3 '), in which the retroreflective projections of the UV curable resin material (33) are integrated from the roll mold (3') after curing with the ultraviolet lamp (5 ' (31) may be separated and taken up in a roll form to be continuously produced in a roll shape.

Then, the retroreflective sheet 30 is subjected to the above-mentioned polycarbonate (PC) sheet (Fig. 5) wound in a roll form on a vacuum molding machine 6 having a hole 6a formed on its upper surface 31 is formed by vacuum molding a part of the curved surface portion 30a so as to form a curved surface portion 30a while being partly inserted into the hole 6a of the vacuum molding machine 6 and cutting the curved surface portion 30a do.

In the present invention, the retroreflective sheet 30 is pulled out as it is in the form of a roll and is not laminated but cut in the form of a curved surface portion 30a and laminated on the second radiation layer 20.

As described above, the sheet 1 capable of being retroreflective can be formed in such a manner that the second radiation layer 20 mixed with the low melting point fiber material is integrally bonded to the first radiation layer 10 through, for example, And elasticity can be provided together.

Further, the sheet 1 capable of retroreflective reflection as described above can be prevented from the occurrence of fire due to the sheet as the first and second layers 10 and 20 are subjected to flame-retardant treatment through the flame retardant material.

The sheet 1 capable of retroreflective reflection as described above is not adhered to the second fiber radiation layer 20 in a planar form but is preliminarily processed in a curved shape and then attached, It is possible to further increase the visibility at night, thereby effectively preventing various safety accidents due to night driving.

Coupling portions 40a and 40b corresponding to each other may be formed on both sides of the retroreflective band 1 'produced by cutting the sheet 1 capable of retroreflective reflection as described above into a strip shape.

The retroreflective band 1 'may be used for various equipment such as a soldier's body or a helmet, or may be used for a night moving guide mark to increase visibility at night.

The retroreflective band 1 'is fixed to the helmet in the form of a ring by mutually corresponding fastening portions 40a and 40b formed on both sides, or the retroreflective band 1' And can be adhesively fixed to the helmet by a bonding portion provided on a lower surface of the band. An example of the fastening portions 40a and 40b formed on the retroreflective band 1 'may be a Velcro tape.

In addition, the night moving route guide mark attached with the retroreflective band 1 'is attached within the connecting trenches to increase the visibility of the nighttime, thereby guiding the road at night. At this time, the retroreflective band 1 'can be attached to the night moving path guide mark by the adhesive portion provided on the lower surface.

Generally speaking, connecting trenches are long and narrow trenches in the ground to interconnect various trenches, awards, and bastions. These trenches are made up of trenches, And to ensure that fire and contact are carried out more safely.

In the interior of such a traffic lane, specifically, a night traffic route marking with a retroreflective band 1 'attached to either or both sides of the traffic lane may be attached or attached to the floor so that it can be guided at night .

In addition, the night moving route guide mark with the retroreflective band 1 'may be attached in the form of a band as a marker for guiding the movement route to mountains or no length. Since the length is not visible when the general climbers hike in the mountains or when the soldiers move at night, the nighttime visibility of the nighttime is attached by attaching the recreational reflection band 1 ' It is possible to facilitate the movement.

The retroreflective band 1 ', which can be used for the helmet or the night travel guide marking, is made of a flame-treated synthetic resin fiber material, as shown in FIG. 7, A second radiation fiber layer 20 formed by mixing a synthetic resin fiber material and a low melting point fiber material laminated on the upper surface of the first radiation fiber layer 10 and subjected to a flame retardation treatment and a UV coating treatment, And a retroreflective sheet 30 which is curved so as to allow reflection at all angles and on which a plurality of spaced apart layers are stacked on the second radiation layer 20.

Since the first radiation layer 10, the second radiation layer 20 and the retroreflective sheet 30 are the same as those of the sheet 1 capable of retroreflective reflection described above, detailed description thereof will be omitted here for the sake of simplicity. .

In the case where the retroreflective band 1 'using the seat 1 capable of reflex reflection according to the embodiment of the present invention is used for various kinds of equipment such as a soldier's body or a helmet, the visibility is further increased at night Safe night shift and training can be enabled.

It is to be understood by those skilled in the art that the present invention may be embodied in many other forms without departing from the spirit and scope of the invention, the embodiments being exemplarily described above. It is therefore intended that the above-described embodiments be considered as illustrative rather than restrictive, and that all implementations within the scope of the appended claims and their equivalents are intended to be included within the scope of the present invention.

1: Retroreflective sheet
1 ': Retroreflective band
3: plate mold
3 ': rolled mold
3a, 3a ': unevenness
4, 4 ': pressure roller
5, 5 ': UV lamp
6: Vacuum molding machine
6a: hole
7: Heating heater
10: first radiation fiber layer
20: second radiation fiber layer
30: Retroreflective sheet
30a:
31: Polycarbonate (PC) sheet
33: ultraviolet ray hardening resin material
35: UV coating layer
40a, 40b: fastener

Claims (5)

A retroreflective band in which a sheet (1) capable of recursive reflection is cut into a strip shape,
The sheet (1)
A first radiation fiber layer 10 formed of at least one synthetic resin fiber material selected from the group consisting of polyethylene (PE), polyethylene terephthalate (PET), and the like;
At least one synthetic resin fiber material of polyethylene (PE) fiber material or polyethylene terephthalate (PET) material laminated on the upper surface of the first radiation-absorbing fiber layer 10 and subjected to a flame-retarding treatment and a UV- A second spinning fiber layer (20) formed by mixing a melting point fiber material; And
And a retroreflective sheet (30) which is curved so as to allow reflection of light at all angles and in which a plurality of curved portions (30a) are stacked on the second radiation layer (20)
The first radiation layer 10 and the second radiation layer 20 contain phosphorus (P) in an amount of 4,000 to 10,000 ppm as a flame retardant component to the synthetic resin fiber material,
The second radiation fiber layer 20 comprises 80 to 90% by weight of the flame-treated synthetic resin fiber material with 4,000 to 10,000 ppm of phosphorus (P) component and 10 to 20% by weight of the low melting point fiber material having a melting point of 80 to 90 ° C ,
And a UV coating layer (35) is laminated on the upper surface of the retroreflective sheet (30). The method according to claim 1,
And the fastening portions (40a, 40b) corresponding to each other are formed on both sides of the recursive reflection band. A step of producing a sheet (1) capable of reflex reflection; And a step of cutting the sheet (1) capable of retroreflecting into a strip shape, the method comprising:
The process for producing the sheet (1) capable of retroreflective
(P) powders are mixed in an amount of 4,000 to 10,000 ppm in at least one synthetic resin fiber chip of a polyethylene (PE) powder or a polyethylene terephthalate (PET) powder to prepare a master batch (S1);
A second step (S2) of spinning the master batch produced in the first step (S1) to produce a flame retardant synthetic resin fiber material;
A third step (S3) of producing the flame-retarded synthetic resin fiber material produced in the second step (S2) through a roller with a plate-shaped first radiation layer (10)
A fourth step (S4) of UV-treating and dyeing the flame-retardant synthetic resin fiber material produced in the second step (S2);
The low melting point fiber material having a melting point of 80 to 90 占 폚 is mixed with the UV-treated and dyed flame-retardant synthetic resin fiber material in the amount of 10 to 20% by weight in the fourth step (S4) A fifth step S5 of manufacturing the radiation fiber layer 20;
A sixth step (S6) of laminating the second radiation-absorbing fiber layer (20) produced in the fifth step (S5) on the first radiation-absorbing layer (10) produced in the third step (S3); And
A seventh step S7 of processing the retroreflective sheet 30 so as to form a plurality of curved surface portions 30a and cutting the curved surface portion 30a and then laminating the curved surface portions 30a on the second radiation layer 20, And a reflective film formed on the reflective film. A helmet to which a retroreflective band according to claim 1 or 2 is fixed,
The retroreflective band is fixed to the helmet in ring form by mutually corresponding fastening portions 40a, 40b formed on both sides, or alternatively,
Wherein the helmet is adhered and fixed to the helmet by a bonding portion provided on a lower surface of the recursive reflection band. In a night travel guide mark attached to a connecting trenches,
Wherein the night moving route guide marker is provided with a retroreflective band according to any one of claims 1 and 2.

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