JPS6233845A - Light reflective cloth - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a light-reflecting fabric that can itself reflect light, such as a woven fabric, knitted fabric, or other fabric.

(Prior art) As a conventional light-reflecting fabric,
The one described in No. 8 is known. This is a method in which a flat transparent fine body made of basic lead carbonate and a coloring material are mixed on the top surface of a base made of woven, knitted or other fabric.
This is a light-reflecting cloth coated with paint and transparent small balls embedded in the adhesive paint.

(Problem to be solved) In conventional light-reflecting fabrics, woven, knitted, or other fabrics themselves do not have the property of reflecting light, but reflect light on the top surface of the fabric or other fabric. ) jfJ i'I is a third version of the structure, so if you want to use this light-reflecting cloth as a leg band, for example, the leg band and the rest are made of other fabric, and then There was the trouble of sewing light-reflecting cloth. If the fabric constituting the leg ties itself has light-reflecting properties, such light-reflecting cloth would be unnecessary.

Therefore, it is an object of the present invention to provide a light-reflecting fabric that can be used to make various clothing, curtains, work sheets, personal items made of cloth, etc. by imparting light-reflecting properties to the fabric itself. With the goal.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention forms a transparent adhesive layer on a base material, and includes a transparent adhesive layer having a refractive index of at least 1.9. A small sphere is fixed by burying at least one-third or more of its diameter, and the buried part of this transparent small sphere is plated with a highly reflective substance by means such as vacuum vaporization to form a plating layer. The sheet consisting of the base material, the adhesive layer, the transparent globules, and the plating layer is cut into thin pieces, and the thread is used alone or in combination with other threads to knit or (weave) the sheet. In addition, in order to achieve the above-mentioned object, the second invention provides a transparent adhesive in which a reflective material consisting of transparent and flat pearlescent pigment platelets such as salt-based acid lead is mixed on a base material. forming a layer, fixing a transparent sphere having a refractive index of at least 1.9 or more in this adhesive layer by burying at least one-third of its diameter, and surrounding the buried part of the transparent sphere. The reflective material is arranged in multiple layers as a characteristic of pearlescent pigment platelets to form a multi-layered multi-reflective layer, and the base material,
It is knitted or woven using threads obtained by cutting a sheet consisting of an adhesive layer, transparent globules, and a multi-layer multi-reflective layer into thin pieces, either alone or in combination with other threads.

[Function] In this invention, there is no need to layer a light reflecting means on knitted fabrics, woven fabrics, or other fabrics, and a desired object can be produced by cutting and sewing the fabric itself. Hats, clothing, etc. themselves reflect light.

〔Example〕

Preferred embodiments of the present invention will be described below with reference to the drawings.

First, since the light reflecting yarn 12 is used in whole or in part as the yarn constituting the fabric, this yarn will be explained.

FIG. 1 is a cross-sectional view of a light reflecting thread 12, in which a transparent adhesive layer 2 is formed on a base material 1, and transparent small spheres 3 having a refractive index of at least 1.9 are formed on this adhesive layer 2. At least one-third of its diameter is buried and fixed. The buried part of the transparent small sphere 3 is plated with a highly reflective substance by means such as vacuum deposition, and then plated! ! 4 is formed. The yarn having the structure shown in FIG. 1 is formed on a sheet and cut into narrow pieces. As the base material 1, it is also possible to use polyester, various synthetic MS, cotton, silk, etc. The transparent adhesive layer 2 used has the following composition.

Urethane resin: 100 parts Two-component urethane resin: 30 parts Curing agent:
...15 parts vinyl chloride/vinyl acetate copolymer resin...5
0 parts Solvent...50 parts The plating 14 is a transparent small sphere 3 made by vacuum vapor deposition of aluminum.
It is preferable to apply the method to As the transparent small sphere 3, one having a spherical shape of about 30 to 80 microns is used.

The light reflecting thread 12 shown in FIG.
A reflector 115 formed by vacuum-depositing aluminum on the upper surface of the base material 1 is provided between the reflector 115 and the base material 1. To manufacture the thread shown in FIG. 2, first prepare a carrier sheet 6 having at least a two-figure structure, with one side covered with a plastic layer 6a such as a heat-melting polyethylene film, and this plastic layer 6a. The transparent globules 3 are attached to the layer by heating (see Section 3). How to wear this transparent small ball 3 is as follows.
As shown in the figure, the rolled up carrier sheet 6 is pulled out by a pull-out roll 7, a countless number of transparent globules 3 are stored in the WIs, and heated to 120'C to 200°C by entering the tank 8. A heated thermo roll 9 is arranged, and the carrier sheet 6 drawn out from the pull-out roll 7 passes through this thermo roll 9, and the transparent globules 3 are adhered to the plastic layer 6a in the bath 8. The carrier sheet 6 to which the transparent globules 3 are attached is taken off by a take-up roller 10. Heat〇-
When the carrier sheet 6 is stretched over the roll 9, the thermofusible plastic book 116a is placed on the outside, and the other layer 6b is placed in contact with the roll side. And this heat roll 9 is heated to 120°C.
Because it is heated to 200℃, the plastic M6
aS melts and gives 4J of stickiness, and this stickiness causes the transparent globules in the tank 8 to adhere to the Plus Deck M6a. By passing between the pair of pressure rolls ii and 11 on the way to the take-up roll 10, the transparent pellets 3 attached to the plastic ll6a can be buried in the plastic 1laa. I'm friendly. The degree of embedding of the transparent small sphere 3 into the plastic 16a is as follows.
It is preferably about one third of the spherical diameter. Carrier sheet equipped with transparent globules 3 produced in this way]-
6, as shown in FIG.
A metal such as aluminum is deposited on the part using the vacuum lid 1 method. Plating formed by means such as vapor deposition! ! Apply adhesive on top of 4 at a temperature of 120
After heating and drying at ℃ for 10 minutes, it is wound up and left to stand for about 24 hours to naturally harden. The sheet manufactured in this manner is referred to as the first sheet 20 (see FIG. 6).

Separately from this first sheet 20, a metal such as aluminum is deposited on one side of the base material 1, which is made of a polyester film with a thickness of about 25 microns, using a vacuum deposition method to create a reflective film! Form 5. This sheet will be referred to as the second sheet 30. Then, on the upper surface of the first sheet 20, polyester thread binding 1? IJ...100 parts Isocyanate crosslinking agent...3 parts Solvent...
Apply the paint adjusted by 10 parts to about 80Ω/12,
After drying at 00 DEG C. for 10 minutes and 12 fl, as shown in FIG. 8, it is bonded to the surface of the reflective layer of the second sheet 1-30 using a heated pressure roll 12. After leaving this pasted sheet for about 48 hours to naturally harden, the first sheet 20
Peel off the carrier sheet 6 and attach the transparent pellets 3 to the adhesive! 24
At the same time, a plating layer 4 is formed on the buried portion of the transparent small sphere 4. What remains after the carrier sheet 6 is released $'lJ is the base material 1, the adhesive WI2, the transparent pellets 3,
It is a sheet consisting of a plating layer 4 and a reflective layer 5, and by cutting this sheet into narrow widths, the light reflective thread 1 shown in FIG.
2 is completed. It is preferable that the cutting width be finely cut so that about 80 to 120 threads can be produced per inch. Then, the cut thread is wound around a cone with the transparent small balls on the outside.

Furthermore, it is also possible to use this thread to create twisted threads using conventional methods for manufacturing gold and silver threads, such as round twisting, Hagoromo twisting, Keyaki twisting, Chiyoda twisting, etc., in which filaments of nylon, human silk, polyester, etc. are tied together. . One layer 6b constituting the carrier sheet 6 is made of a polyester film with a thickness of about 75 microns, but it may be made of other plastic material with a smooth adhesive surface to the plastic layer 6a. It may be made of smooth paper. In this way, a carrier sheet 6 having at least a two-layer structure in which a thermofusible plastic 16a is laminated and integrated on the surface of a layer 6b made of a smooth-surfaced plastic material, paper, etc. is used, and the plastic layer 6a of the carrier sheet 6 is Temporarily gluing the transparent small ball 3 will make the transparent small ball 3 rough! After contacting the smooth surface of 6b and smoothing it, and thus peeling off the carrier sheet 6 and transferring the transparent globules 3 to the adhesive layer 2, the exposed upper ends of the transparent globules 3 are of uniform height. It is possible to be in a state where Furthermore, it is extremely convenient to form the plating layer 4 on the necessary portions of the transparent small spheres 3.

It is also possible to color the plating layer 4 and the reflective layer 5 with a desired color. When the plating Wi4 and the reflective WI5 are each formed by vacuum evaporation of aluminum, the thread becomes a shining silver thread. It is also possible with the current technology to color this aluminum, and it is also possible to color it with gold or other colors in addition to silver to make a thread having the color of T.

FIG. 10 is a sectional view of another light reflecting thread 12.

This thread is made of a transparent adhesive W! on which a reflective material 13 consisting of transparent flat pearlescent pigment platelets such as lead carbonate is mixed on a base material 1! I2 is formed, and transparent small spheres 3 having a refractive index of at least 1.9 or more are embedded in this adhesive layer 2 to a depth of at least one-third of their diameter and fixed. Said reflective material 1
3 are arranged in multiple layers surrounding the buried part of the transparent small sphere 3, resulting in multiple reflections! form 14. and,
A light reflective thread 12 shown in FIG. 10 is obtained by cutting a sheet consisting of the base material 1, adhesive W12, transparent globules 3, and multi-layer reflective layer 14 into narrow widths. As the base material 1, synthetic IJAIl such as polyethylene can be used.

The production of the index thread shown in FIG. 1o involves first attaching the transparent beads 3 to the plastic 16a of the carrier sheet 6 in the same manner as shown in FIG. Apply. This adhesive ~1 preferably has the following composition: urethane resin...23.5 parts by weight vinyl chloride.
Vinyl acetate copolymer resin...20 parts Methyl ethyl ketone...106.51i 1 part Evogishi resin...0.75 parts! Part Ii Dimethylformamide... 75 parts Oku pearl luster pigment platelet... 100 parts by weight Pearl luster pigment platelet (Reflector 1
As for 3), base lead carbonate etc. are used, and the size is about 8 to 25 microns and the thickness is 40 to 200 microns.
Things on the order of millimicrons are mixed into the adhesive. The adhesive mixed with the pearlescent pigment platelets is applied so as to cover the transparent small spheres 3. The coating thickness of the adhesive mixed with this pearlescent pigment platelet is about 150 microns.
It is thick. Methyl ethyl ketone and dimethyl formamide are solvents in the composition, and during volatilization of these solvents, the characteristics of the pearlescent pigment platelets are that they are arranged in multiple layers surrounding the transparent globules. When the pearlescent pigment platelets are arranged in multiple layers so as to surround the buried portion of the transparent small sphere 3, the light rays that are refracted and incident on the transparent small sphere 3 are reflected by the pearlescent pigment platelets. Upon hitting the plate, a portion is reflected, the remainder is transmitted, and upon hitting the next pearlescent pigment platelet, a portion is likewise reflected and the remainder is transmitted. The light reflected by the pearlescent pigment platelets in each layer is refracted and passed through the transparent small spheres 3 and is retroreflected. The characteristics of these pearlescent pigment platelets with respect to light, in which some of them are reflected and some of them are transmitted, realize a multilayered reflection effect of light. Pearlescent pigment platelets are transparent small spheres 3
Surrounding the buried part of and arranged in multiple layers are:
When applying the adhesive, a parallel viscous flow occurs due to the displacement movement between the coated surface and the brush due to the action of operating force such as brush coating or knife coating, and this viscous flow causes the pearlescent pigment platelets in the adhesive to become parallel. However, due to the presence of the transparent globules 3, a viscous flow occurs in the adhesive along the transparent globules 3, which disturbs the parallel alignment of the pearlescent particles, and the transparent globules 3 The array is along the spherical surface. To explain in detail the above-mentioned retroreflection effect, transparent small sphere 3
When pearlescent pigment platelets are arranged around the buried part of 3
The light L2 is refracted and reflected toward the light source (the first
(See Figure 1). In other words, retroreflection is performed which returns to the direction of the light source. When the transparent pellet 3 is not absorbed by JHi, the pearlescent pigment platelets are arranged in parallel, and the light that hits them is multi-reflected as shown in Figure 12(a), resulting in strong reflection and pearlescent luster. However, if metal powder is mixed instead of the pearlescent pigment platelets, the light will be scattered as shown in FIG. 12(b). This has long been known as a property of pearlescent pigment platelets. In addition, the pearlescent pigment platelet is shown in Fig. 12(a).
As shown in Figure 3, the hiding power is extremely small, and the light is repeatedly reflected while passing through several layers of pearlescent pigment platelets. This property of extremely low hiding power means that while metal powders have a blackish tinge, making it difficult to mix them into beautiful colors, pearl pigments can be mixed freely without creating a blackish tint. It is guaranteed. In this way, transparent small balls 3 are placed on
J i? Then, this transparent small sphere 3 was coated with an adhesive mixed with a reflective material 13 made of pearlescent pigment platelets, and a similar base material 1 was bonded under pressure as shown in FIG. Sazeru. Then, by peeling off the carrier sheet 1-6, a grooved sheet as shown in FIG. 10 is obtained. The light-reflecting thread 12 can be obtained by narrowing this sea by a [tFi.

Of course, the reflective layer 5 may be formed on the upper surface of the base material 1 by vacuum evaporating aluminum or the like. It is also possible to color this anti-rJ41!15 in a desired color. Furthermore, a reflective material 1 made of pearlescent pigment platelets
Adhesive that is a mixture of 3! ! ! 2 may be mixed with a dye of a desired color.

The above-mentioned method for manufacturing the light-reflecting thread 12 involves forming an adhesive layer 2 in which pearlescent pigment platelets are mixed on the base material 1 without using the carrier sheet 6; Before the adhesive ji! ! By dropping a transparent pellet 3 onto this layer 2 while 2 is still wet, the transparent pellet 3 is buried and the pearlescent pigment platelets are wrapped around the embedded area. It is also possible to surround and arrange in multiple layers to form multiple multilayer anti-Q4H14.

It is also possible to configure this light-reflecting thread 12 as various twisted threads similarly to the light-reflecting thread 12 described above.

A fabric knitted or woven using such yarn 12 is a light-reflecting fabric according to the present invention.

FIG. 13 shows a lace fabric in which the above-mentioned light-reflecting threads 12 are knitted together with ordinary threads. When this is used as a curtain, when light hits this curtain, due to the presence of the light-reflecting threads 12, The incident light is retro-reflected so as to return to the irradiation direction. If such a curtain is attached, for example, to the inner surface of the rear glass of a car, it will retroreflect the lights in the rear view during night driving, thereby preventing unexpected accidents such as rear-end collisions. Further, various types of clothing, cloth personal items, etc. can also be produced using such knitted lace fabrics.

FIG. 14 shows a mesh fabric made using this light-reflecting thread 12. As in FIG. 13, the light-reflecting thread 12 is used only in a part of the fabric, but it is of course possible to construct all the threads with the light-reflecting thread 12. For example, the first
The entire Chemesh fabric shown in Figure 4 is made of light-reflecting thread 12,
This can also be worn on a hat like the one shown in FIG.

This light-reflective safety hat 15 has a mesh fabric part made of light-reflecting threads 12, a normal fabric 16 and a mesh fabric combined bti to form a cap body part to be worn on the head, and a brim part 17 attached to this. (This is a four-digit number. However, it goes without saying that the light-reflecting thread 12 may be used partially or completely in the collar portion 17 and the fabric 16.

FIG. 16 shows light-reflective athletic shoes 18 in which the fabric of the present invention is applied. When forming the fabric of the athletic shoes 18, by appropriately mixing the light-reflecting threads 12, desired parts of the shoes 18 can be made to reflect light. Especially when jogging at night, when a car driver illuminates the jogger's feet, this light reflective sports shoe 1
The presence of the light reflecting thread 12 of 8 can be clearly confirmed, improving traffic safety 1
It will be excellent.

FIG. 17 shows the fabric of this invention applied to 41 light-reflective safety jackets. If such a vest 19 is worn by a police officer or a person working at a construction site, it will be visible from a distance at dusk or at night, making it an effective safety measure.

Further, by using the light-reflecting fabric according to the present invention, it is possible to make belts, jackets, mufflers, shawls, gaiters, coats, and other items. In addition, protective sheets are installed at construction sites to prevent debris from falling on passersby at building construction sites, flags used by construction workers to indicate construction areas, and even sheets to cover cargo for trucks. It is also possible to use this light-reflecting fabric. Furthermore, it can also be used as fabric for cloth bags, tents, etc.

Fabrics are made by knitting or weaving the above-mentioned light-reflecting yarn 12, for example, by knitting or weaving yarn made by right-twisting round yarn and left-twisting colored yarn (monofilament) with good light transmittance. I can do things like J. A colored thread with good light transmittance is transparent and colored I7! made of polyester, nylon, or other 4M resin material. Preferably, the yarn is If such a colored thread with good light transmittance and the above-mentioned light reflecting thread 12 are twisted together, there is no need to apply a colored layer to the transparent globules.

〔effect〕

As explained above, in the fabric of the present invention, a transparent adhesive layer is formed on the mouth material, and transparent small spheres having a refractive index of at least 1.9 or more are attached to the adhesive layer with a diameter of at least 63 mm.
The buried part of the transparent small sphere is plated with a highly reflective substance by means of vacuum deposition S to form a plating layer, and the base material, adhesive layer, Since the thread made by cutting the sheet 1-, which consists of transparent small balls and a plating layer, into thin widths is used alone or in combination with other threads, it is woven or knitted, so that the light incident on this thread is not incident on the transparent small balls. The light hits the plating layer, is reflected, and returns to the light source through the transparent sphere. Further, there is no need to roughly form retroreflective means on the fabric as in the past, and by processing the fabric itself using this thread, it can be used for various purposes.

In addition, a transparent adhesive layer mixed with a reflective material consisting of transparent flat platelets of pearlescent pigment such as basic lead carbonate is formed on the gutter material, and this adhesive layer has a refractive index of at least 1.9. A transparent small sphere having at least one-third of its diameter is embedded and fixed, and the reflective material is arranged in multiple layers as a characteristic of the pearlescent pigment platelet so as to surround the buried part of the transparent small sphere, and the multilayer Forming a multi-reflective layer, knitting using a thread obtained by cutting a sheet consisting of the base material, an adhesive layer, transparent globules, and a multi-layer multi-reflective layer into thin widths alone or in combination with other threads,
Or, in the case of woven materials, as in the previous invention, there is no need to form retroreflective means on the fabric, etc., and the fabric itself can be processed to create items for various uses. has retroreflective properties. Also, due to the presence of multiple reflective layers, the light incident on the transparent sphere is refracted and passes through the pearlescent pigment platelets. At this time, a portion of the light is reflected by the sawdust of each pearlescent pigment platelet, and the reflected yt passes through the transparent sphere again and returns toward the light source, resulting in extremely excellent reflection characteristics. In addition, since pearlescent pigment platelets have extremely small concealing horns, they can be toned into beautiful colors without taking on a blackish tinge like metal powder.

Furthermore, in both inventions, since the thread itself has light reflective properties,
The fabric has excellent breathability.

[Brief explanation of drawings]

Figure 1 is a cross-sectional view of the light-reflecting yarn used in the fabric of the present invention, Figure 2 is a cross-sectional view showing other types of light-reflecting yarn, and Figures 3 to 9 are the light-reflecting yarn shown in Figure 2. FIG. 3 is a cross-sectional view of a state in which transparent globules are attached to a carrier sheet, and FIG. 4 is an example of a means for adhering transparent globules to a carrier sheet. FIG. 5 is a cross-sectional view showing a state in which an excess wave is formed on a transparent globule, FIG. 6 is a cross-sectional view showing an adhesive layer formed on a transparent globule on which a plating layer is formed, and FIG.
The figure is a cross-sectional view of a reflective layer formed on a base material, FIG. 8 is a diagram explaining the process of laminating the first sheet shown in FIG. 6 and the second sheet shown in FIG. 7, and FIG. 10 is a cross-sectional view of another light-reflecting thread, FIG. 11 is an explanatory diagram of the light-reflecting action of a multi-layer multi-reflective layer, and FIG. 12 is a
) is an explanatory diagram of the reflection properties of pearlescent pigment platelets, Figure 12<
b) is an explanatory diagram of the light reflection characteristics of metal powder, Fig. 13 is an enlarged plan view showing an example of application to knitted lace fabric, Fig. 14 is an enlarged plan view showing an example of application to mesh fabric, and Fig. 15 is an enlarged plan view showing an example of application to mesh fabric. A perspective view showing a hat formed from the fabric according to the present invention, FIG. 16 is a side view showing an example of application to fabric for athletic shoes,
FIG. 17 is a front view showing an example of application to vest fabric. DESCRIPTION OF SYMBOLS 1... Base material, 2... Adhesive layer, 3... Transparent small sphere, 4... Plating layer, 12... Light Reflective thread, 13...Reflective material, 14...Multi-layer multiple reflective layer.

Claims (1)

[Claims] 1. A transparent adhesive layer is formed on a base material, and a transparent small sphere having a refractive index of at least 1.9 or more is embedded in the adhesive layer by at least one third of its diameter. The buried part of the transparent globule is plated with a highly reflective substance by means such as vacuum deposition to form a plating layer, and the base material, the adhesive layer, the transparent globule, and the plating layer are A light-reflecting fabric that is knitted or woven using yarn made by cutting a sheet made of . 2. A transparent adhesive layer mixed with a reflective material consisting of transparent flat platelets of pearlescent pigment such as basic lead carbonate is formed on the base material, and this adhesive layer has a refractive index of at least 1.9 or more. A transparent small sphere having a diameter of at least one-third of its diameter is buried and fixed, and the reflective material is formed in multiple layers as a characteristic of the pearlescent pigment platelet so as to surround the buried part of the transparent small sphere. Arranged to form a multi-layered multi-reflective layer, the sheet consisting of the base material, adhesive layer, transparent globules, and multi-layered multi-reflective layer is cut into narrow widths, and the thread is used alone or in combination with other threads to knit; Or woven light reflective fabric.