JPH04355125A - Optical reflection particles dispersion sheet and its manufacture - Google Patents

Abstract

PURPOSE:To make optical reflecting direction rang, by a method wherein a large number of optical reflection particles are stuck to the surface of a filmy supporting material and its optical reflecting surfaces are formed in random directions, in the title sheet for manufacturing of a lure. CONSTITUTION:A supporting film 2 such as polyethylene is stuck onto a working plate and fastened temporarily and an adhesive agent layer 3 is formed on the surface of the film 2. Then optical reflection particles 1 which are obtained by cutting a sheet where a metallic layer is formed into a square or a round or a triangle and possessing metallic gloss surface or pearl gloss surface are dispersed on the surface of the film, which are spread with a brush or a sponge at need and stuck so that the reflecting surfaces face the random directions.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-reflecting dispersion sheet suitable for use as lures for sabiki fishing, decorative items, signage items, etc., and a method for manufacturing the same.

0002

2. Description of the Related Art Generally, it is known that fish recognize fish as food by sensing light reflected from the fish's abdomen, and swallow the fish as food. Light-reflecting sheets are used as artificial bait when fishing for fish with the above-mentioned habits. For example, metals are evaporated onto a polyester film, pearl pigments are added, or extremely thin films are used. BACKGROUND ART Sheets configured to reflect light by stacking multiple layers have been developed.

[0003] However, the above-mentioned sheet reflects light in a narrow range, for example like a mirror, and does not necessarily have a sufficient fish-attracting effect, and the reflected light is scattered randomly in all directions around it. There is a demand for the development of a light-reflecting sheet that spreads out.

[0004]Furthermore, if the above-mentioned film were provided in fields other than fishing bait, such as pop-up advertising media, building exteriors and interiors, article decorations, and packaging, it would improve daily life. It is possible to make the space more enjoyable.

Furthermore, if the above-mentioned sheet is used as a road sign or reflective sign for bicycles, or is attached to body covering items such as raincoats, hats, and shoes, it will be easy to attract the attention of drivers at night or in rainy weather. It is possible to improve the living environment in terms of traffic safety.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a light-reflective particle-dispersed sheet that randomly reflects light in all directions around it, and a method for manufacturing the same. It is something to do.

[0007]

[Means for Solving the Problems] The present invention, which achieves the above object, is a film-like or sheet-like support material (hereinafter referred to as a support film) that has a metallic luster surface or a pearlescent surface on at least one side. The gist is that a large number of light-reflecting particles are attached, and the light-reflecting surfaces of the light-reflecting particles are formed in random directions.

[0008] Furthermore, in producing the light-reflecting particle-dispersed sheet, the support material is temporarily fixed on the work surface to prevent wrinkles, and then an adhesive layer containing no solvent is applied on the surface of the support material. After forming the adhesive layer and scattering light-reflecting particles from above the adhesive layer and pressing and crimping the light-reflecting particles onto the adhesive layer, the temporary fixing is released and the supporting material is peeled off from the work surface. Bye.

[0009]

[Function] The light-reflecting particles preferably used in the present invention are flaky particles having a metallic luster surface or a pearlescent surface.As shown in FIG. By spraying a large number of particles on the adhesive layer 3 formed on one side and pressing them together, a portion of the light-reflecting particles 1 overlaps, etc., so that the light-reflecting surface of the light-reflecting particles is scattered in all directions, A sheet can be obtained that reflects light in random directions around it. Furthermore, the light-reflecting surfaces of the light-reflecting particles may be made to vary in random directions by forming irregularities or inclined surfaces on the surface of the adhesive layer.

[0010] As the light-reflecting particles, commercially available ones can be used. For example, a sheet formed by forming a metal layer on the surface of a film, or a sheet that creates a pearlescent luster by stacking a large number of thin films, can be used. It is sufficient to use flaky particles cut into any shape such as square, round, or triangular. The preferred size of the particles is 0.001 to 1 in the case of square pieces.
It is 0 mm square, and 0.01 to 1 mm square is more preferable.

Furthermore, since the light-reflecting particle-dispersed sheet according to the present invention uses an adhesive that does not substantially contain a solvent, as will be described later, ordinary films can be used as the support film, such as polyethylene, polypropylene, Polyamide, polyester, polycarbonate, polyvinyl chloride, polyvinylidene chloride, natural rubber, synthetic rubber, polyurethane, ethylene-vinyl acetate copolymer, ethylene-vinyl alcohol copolymer, etc. can be used.

However, when the sheet according to the present invention is used in water, it is preferable that the support film is insoluble in water or does not swell significantly; for example, a polyvinyl alcohol film swells when immersed in water. When a polyvinyl alcohol film is used as a support film, it is necessary to limit its use because the adhesive will peel off.

[0013] The support film may be transparent or opaque, or may be colored, and its thickness is between 10 and 1
000 μm is preferred.

Furthermore, the present invention does not limit the type of adhesive, but includes rubber adhesives, acrylic adhesives, and silicone adhesives, which are adhesives for permanent adhesive tapes used for ordinary adhesive tapes and adhesive labels. etc. can be exemplified. The thickness of the adhesive layer formed by the above-mentioned adhesive on the support film is preferably 5 to 200 μm.

[0015] In the present invention, an adhesive layer that does not substantially contain a solvent refers to an adhesive layer having a thickness of 5 to 200 mm after drying the above adhesive.
The adhesive is applied to a thickness of μm and then dried to evaporate most of the solvent contained in the adhesive.

[0016] In the manufacturing method of the present invention, it is preferable to temporarily fix the support film on the work surface of the work base so as not to cause wrinkles, and the work base may be a flat plate with a smooth surface or a cylindrical body. An example of this is to use a drum that has a smooth outer peripheral surface and is configured to be rotatable around an axis. Further, in temporarily attaching the support film to the work surface, examples include a method using a removable adhesive, a method of applying a vacuum and applying the support film to the work surface, and the like.

When forming the adhesive layer on the support film, double-sided tape (with or without a core material that supports the adhesive) is attached to the support film and peeled off. The paper may be omitted, or the adhesive layer may be formed on the support film in the same manner as in the production of double-sided tapes using a normal double-sided tape production machine.

In the double-sided tape manufacturing machine, a pressure-sensitive adhesive containing a solvent is applied to a separator and then dried, so that most of the solvent contained in the pressure-sensitive adhesive is evaporated and transferred onto a support film. Therefore, since the solvent does not come into direct contact with the supporting film, even films that dissolve or swell with the solvent can be used. Further, when a support film made of a material that is not affected by solvents is used, an adhesive containing a solvent may be applied to the support film and the solvent may be removed by drying.

The method of supplying the light-reflecting particles to the above-mentioned adhesive layer is to scatter them, spread them over the entire surface with a brush or sponge if necessary, and then adhere them using a hard roll (a roll made of metal or hard plastic). For example, when a drum is used as a work base, there is a method in which the drum is rotated with its lower side buried in a container containing light-reflecting particles, or a method in which the outer periphery of the drum is rotated. An example is a method in which a light-reflecting particle supply port is provided above the surface, and the light-reflecting particles are fed and pasted while rotating the drum, and the light-reflecting surface of the light-reflecting particles is bonded by pressing with the hard roll. can be formed in random directions. Further, a transparent film may be further laminated for the purpose of preventing the light-reflecting particles from falling off.

[0020]

[Example] Example 1 A work plate was made by pasting a smooth iron plate (thickness 1 mm) on veneer plywood, and a spray-type removable adhesive was applied to the work plate [trade name "Spray Glue 55", Sumitomo 3M Co., Ltd.] Co., Ltd.] was sprayed for 50 seconds/m2, and a 30 μm thick polyethylene film was pasted thereon as a support film, and temporarily fixed by pressing with a roller to prevent wrinkles from forming. A type of double-sided tape without a core material that supports the adhesive [product name: Fujicolor Postcard Tape, Fujicolor Sales Co., Ltd.] is crimped onto the surface of the polyethylene film,
The release paper of the double-sided tape was removed and the adhesive was transferred onto the polyethylene film. On the adhesive, light-reflective particles made by cutting a pearlescent sheet into 0.3 mm squares [trade name "Rainbow A3, Sanyo Kasei Co., Ltd.]" are sprinkled over the entire surface, and the remaining light-reflective particles are Spread it with a brush so that there are no stuck parts, and after adhering it with a steel roller, remove the excess light-reflective particles with a brush to obtain a light-reflective particle-dispersed sheet.This sheet sparkles when viewed from any direction. It emits light and reflects light in all directions.

Example 2 A polyurethane rubber film with a thickness of 30 μm [trade name "Silcron", manufactured by Okura Kogyo Co., Ltd.] was used as the support film.
0.18mm square, 0.3mm square and 0.18mm square on the light reflective particles
．． A light reflective particle dispersed sheet was obtained in the same manner as in Example 1, except that three types of 5 mm square sheets were used. This sheet sparkled when viewed from any direction, and reflected light in all directions.

Example 3 A light-reflective particle-dispersed sheet was obtained in the same manner as in Example 1, except that a 25 μm thick polyester film was used as the support film. This sheet sparkled when viewed from any direction, and reflected light in all directions.

Example 4 A light-reflective particle-dispersed sheet was obtained in the same manner as in Example 1, except that a 30 μm thick polypropylene film was used as the support film. This sheet sparkled when viewed from any direction, and reflected light in all directions.

Example 5 As light-reflecting particles, aluminum was vapor-deposited on the surface of a polyester film and colored with oil dye if necessary.
The surface material was cut into 0.3mm squares [Product name: Suncolor 0.3mm ■Gold, Suncolor 0.3mm]
A light-reflective particle-dispersed sheet was obtained in the same manner as in Example 2 except that ``Silver'', Sanyo Kasei Co., Ltd.] was used. This sheet sparkled when viewed from any direction, and reflected light in all directions.

Example 6 A 100 μm polyester film was used as the support film, a double-sided tape with a non-woven fabric supporting the adhesive was used, and pearlescent sheets were randomly distributed as light-reflecting particles with an average size of 0.7 mm. Surface material cut into shapes [Product name ``Rainbow A 7mm Ran'', Sanyo Kasei (
A light-reflective particle-dispersed sheet was obtained in the same manner as in Example 1, except that a light-reflecting particle-dispersed sheet was used. This sheet sparkled when viewed from any direction, and reflected light in all directions.

Example 7 The outer circumferential surface of a cylindrical body with a diameter of 1 mm and a height of 1.2 m was covered with an aluminum plate to give it a smooth finish, and a working drum that was rotatably supported by a central shaft was used to coat the outer circumferential surface. Spray-type removable adhesive [product name: "Spray Nori 55",
Sumitomo 3M Ltd.] was sprayed at a rate of 50 seconds/m2. A polyurethane rubber film having a thickness of 30 μm was adhered thereon, and the film was temporarily fixed by pressing with a roller while rotating the drum to prevent wrinkles from forming. A type of double-sided tape without a core material that supports the adhesive (product name: Fujicolor Postcard Tape, Fujicolor Sales Co., Ltd.) is pressed onto the surface of the polyurethane rubber film, and the adhesive is removed by removing the release paper from the double-sided tape. was transferred onto the above polyurethane rubber film. A container containing a surface material made by cutting a pearlescent sheet into 0.3 mm squares [trade name "Rainbow A3", manufactured by Sanyo Kasei Co., Ltd.] as light-reflective particles is set under the drum, and the container is placed under the drum. The above-mentioned light-reflecting particles were attached to the adhesive layer by rotating the adhesive layer, pressure-bonded with a flat iron roller, and excess surface material was removed with a brush to obtain a light-reflecting particle-dispersed sheet. This sheet sparkled when viewed from any direction, and reflected light in all directions.

[0027]

[Effects of the Invention] Since the present invention is constructed as described above, there is provided a light-reflective particle-dispersed sheet that randomly reflects light in all directions around it to attract the attention and interest of people and animals, and a method for manufacturing the same. Now we can provide it.

[Brief explanation of drawings]

FIG. 1 is a schematic cross-sectional explanatory diagram showing a light-reflective particle-dispersed sheet according to the present invention.

[Explanation of symbols]

1. Light reflective particles 2 Support film 3 Adhesive layer

Claims (4)

[Claims] 1. A large number of light-reflecting particles having a metallic or pearlescent surface and reflecting light are attached to at least one side of a support material in the form of a film or sheet, and the light reflection of the light-reflecting particles is A light-reflective particle-dispersed sheet characterized by having surfaces formed in random directions. 2. The light-reflecting particle-dispersed sheet according to claim 1, comprising a supporting material that is insoluble in water or does not swell with water. 3. The light-reflecting particle dispersion sheet according to claim 1, wherein the light-reflecting particles are adhered to the supporting material via an adhesive layer that does not substantially contain a solvent. 4. The method for producing a light-reflecting particle-dispersed sheet according to claim 1, wherein the supporting material is temporarily fixed on a work surface so as not to wrinkle, and then the supporting material is placed on the surface of the supporting material. After forming an adhesive layer that does not contain a solvent, scattering light-reflecting particles from above the adhesive layer, and pressing and bonding the light-reflecting particles to the adhesive side, the temporary fixing is released. A method for producing a light-reflecting particle-dispersed sheet, the method comprising peeling a supporting material from a work surface.