JP4505863B2 - Manufacturing method of adhesive tape with diffraction grating pattern - Google Patents

Description

[0001]
[Industrial application fields]
TECHNICAL FIELD The present invention relates to an adhesive tape having a diffraction grating pattern such as a hologram, and is applied directly to various products, or is attached to a wrapping paper, a packaging container or the like when packaging such products. About.
[0002]
[Prior art]
Conventional adhesive tapes that are applied directly to various products, or pasted on packaging paper or packaging containers when packaging or packing such products, include transparent cellophane tape, colored cellophane tape, In particular, there is a cellophane tape on which the brand name and product name of the target product are printed.
[0003]
The adhesive tape on which the brand name, product name, etc. of the target product as described above are printed and used is also used as an identification tool for indicating the brand properties and various attributes of the product.
[0004]
[Problems to be solved by the invention]
However, since such conventional adhesive tapes are relatively easily counterfeited, they did not have a function as a labeling tool for identifying product attributes for preventing damages such as counterfeits and counterfeits.
[0005]
The present invention is an adhesive tape that is used by being attached to a wrapping paper or a packaging container when packaging or packing a product, and the brand property of the product for preventing damages such as counterfeits and counterfeits. The goal is to be able to work with an identification tool that shows specific attributes of a product.
[0006]
[Means for Solving the Problems]
In the invention according to claim 1 of the present invention, a diffraction grating pattern is embossed with an embossing roll on one side of a tape-shaped plastic film substrate, and a light reflective metal vapor deposition layer is formed on the surface of the diffraction grating pattern by vacuum deposition. It is a method for producing an adhesive tape with a diffraction grating pattern, which is formed , coated with an adhesive layer on the surface of the deposited layer, and seasoned.
[0007]
Next, in the invention according to claim 2 of the present invention, a diffraction grating pattern forming layer is laminated on one side of a tape-shaped plastic film substrate by coating , and the diffraction grating is formed on the surface of the diffraction grating pattern forming layer by an embossing roll. An adhesive tape with a diffraction grating pattern formed by embossing a pattern, forming a light reflective metal vapor deposition layer on the surface of the diffraction grating pattern by vacuum vapor deposition , applying an adhesive layer to the vapor deposition layer surface, and seasoning It is a manufacturing method .
[0008]
Next, the invention according to claim 1 or claim 2 of the present invention is the adhesive tape with a diffraction grating pattern according to claim 1 or 2, wherein the adhesive layer is a pressure-sensitive adhesive or a heat-sensitive adhesive. Or it is the adhesive tape with a diffraction grating pattern currently formed using the rewet type adhesive agent.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
An adhesive tape with a diffraction grating pattern according to claim 1 of the present invention will be described in detail below according to an embodiment.
[0010]
FIG. 1 is a side sectional view of the adhesive tape A with a diffraction grating pattern. On one side of a transparent tape-like plastic film substrate 1, a brand name such as a brand name or a manufacturer name, or a brand name of the commodity. In addition, names such as trademarks indicating various attributes, marks, various patterns, and the like are embossed as the diffraction grating pattern 2.
[0011]
As the film material used as the plastic film substrate 1, it is appropriate to use a plastic film material having a property capable of embossing a fine diffraction grating pattern well (or good enough to be confirmed as a pattern), for example, Polyethylene terephthalate resin film, polycarbonate resin film, etc. can be used, and other materials may be film materials having the property of embossing fine diffraction grating patterns well (or good enough to be confirmed as patterns). There is no particular limitation.
[0012]
The diffraction grating pattern 2 is a holographic image pattern (rainbow hologram, stereo hologram, Lippmann hologram, white light reproduction hologram, laser light reproduction hologram, stereo hologram, etc.) diffraction grating pattern by photolithography (or photoetching) or engraving. Alternatively, embossing is performed on one surface of the plastic film substrate 1 by heating and pressing using an embossing roll or an embossing plate on which an embossing pattern for embossing other diffraction grating patterns is formed.
[0013]
On the surface of the diffraction grating pattern 2 formed on one surface of the transparent tape-shaped plastic film substrate 1, a light-reflective metal vapor deposition layer 3 of an appropriate thickness made of aluminum or the like is applied. Functions as a reflective layer.
[0014]
And on the surface of the said metal vapor deposition layer 3, water-based or oil-based pressure-sensitive adhesive (adhesive) or water-based or oil-based heat-sensitive adhesive (fusion agent) or water-based re-wetting type adhesive (by water wetting) Adhesive layer 4 is laminated and formed using an adhesive.
[0015]
Next, the diffraction grating pattern-attached adhesive tape according to the second aspect of the present invention will be described in detail according to the embodiment.
[0016]
FIG. 2 is a sectional side view of the adhesive tape B with a diffraction grating pattern, in which a diffraction grating pattern forming layer 12 is laminated on one side of a transparent tape-like plastic film substrate 1, and the diffraction grating pattern On the surface of the forming layer 12, a brand name such as a brand name or a manufacturer name relating to a product, or a name, a mark, or various patterns such as a trademark indicating a brand name or various attributes of the product is applied by the same heat and pressure embossing method. Embossing is formed as the diffraction grating pattern 13.
[0017]
The diffraction grating pattern 13 is made of plastic using an embossing roll or embossing plate on which an embossing pattern for embossing a diffraction grating pattern such as a hologram image pattern is formed by a photolithographic method (or photoetching method) or an engraving method. It is embossed on one side of the film substrate 1 by heating and pressing.
[0018]
The surface of the diffraction grating pattern 13 formed on one surface of the transparent tape-shaped plastic film substrate 1 is provided with a light-reflective metal deposition layer 14 having an appropriate film thickness made of aluminum or the like. Functions as a reflective layer.
[0019]
An adhesive layer 15 is laminated on the surface of the metal vapor-deposited layer 14 using a pressure-sensitive adhesive (pressure-sensitive adhesive), a heat-sensitive adhesive (fusing agent), or a rewet-type adhesive. .
[0020]
The plastic film material used as the film substrate 1 of the adhesive tape B shown in FIG. 2 is a diffraction grating that has a property of embossing a fine diffraction grating pattern as an intermediate layer (or good enough to be confirmed as a pattern). Since the pattern forming layer 12 is laminated, it is not always necessary to use a plastic film material particularly suitable for embossing a diffraction grating pattern.
[0021]
As a material of the diffraction grating pattern forming layer 12, for example, a polyethylene terephthalate resin, a polycarbonate resin, a polyurethane resin, a polyester-urethane blend resin, or the like can be used. Alternatively, it is not particularly limited as long as it is a film material having such a property that it can be embossed to such an extent that it can be confirmed as a pattern.
[0022]
The above-described adhesive tapes A and B with a diffraction grating pattern of the present invention described above have a brand name such as a product name or a manufacturer name or a brand name of the product by using the diffraction grating pattern 2 on the tape-shaped plastic film substrate 1. Is a tape-like adhesive tape in which names such as trademarks indicating various attributes, marks, and various patterns are visibly displayed, and is wound into a roll to a predetermined length on a suitable winding shaft such as a winding core. .
[0023]
Further, the adhesive tapes A and B with a diffraction grating pattern of the present invention are brand names such as product names and manufacturer names related to the products by the diffraction grating pattern 2, or names or marks such as trademarks indicating brand characteristics and various attributes of the products. Visible displays such as various patterns are observed from the film base 1 side opposite to the adhesive layers 4 and 15.
[0024]
The diffraction grating pattern-attached adhesive tapes A and B of the present invention are obtained by forming a diffraction grating pattern such as a hologram on a plastic film adhesive tape or adhesive tape. For example, specific letters, trademarks, and patterns In addition to this, the image body itself to be displayed visually such as a mark is formed and displayed by a diffraction grating pattern. In addition to this, the image body to be visually displayed such as the specific character, trademark, pattern, mark, etc. is formed by a printing method. It may be displayed and formed and displayed by overlapping the predetermined diffraction grating pattern described above on the print display area.
[0025]
Specific examples of the adhesive tape of the present invention will be described below.
[0026]
A transparent long polyethylene terephthalate resin film (thickness of about 16 μm) as a film base is introduced between an embossing roll and a press roll, and a diffraction grating pattern by a hologram pattern is formed on one side of the film base by an embossing roll. After embossing, aluminum with a film thickness of about 50 nm is vacuum-deposited on the surface of the diffraction grating pattern to form a metal vapor-deposited layer, and an acrylic emulsion adhesive (adhesive) is applied to the surface of the metal vapor-deposited layer with a thickness of about 80 μm. Coated with thickness. Thereafter, after seasoning for one week, the tape was wound around a winding core while slitting to a width of 60 mm to produce the adhesive tape A of the present invention.
[0027]
Add a suitable amount of isocyanate to cure polyester urethane resin (polyester-urethane blend resin, copolymer resin) on one side of a transparent long polyethylene terephthalate resin film (thickness of about 16 μm) as a film base The coating solution was applied at a coating thickness of about 1.5 μm to form a diffraction grating pattern forming layer, and then aged at 80 ° C. for 1 week to obtain a film substrate. Then, this film base material is introduced between an embossing roll and a press roll, and after embossing a diffraction grating pattern with a hologram pattern with an embossing roll on the surface of the diffraction grating pattern forming layer of the film base material, the diffraction grating pattern Aluminum having a film thickness of about 50 nm was vacuum-deposited on the surface of the film to form a metal vapor-deposited layer, and an acrylic emulsion adhesive (adhesive) was applied to the surface of the metal vapor-deposited layer with a coating thickness of about 80 μm. Thereafter, after seasoning for one week, the tape was wound around a winding core while slitting to a width of 60 mm to prepare the adhesive tape B of the present invention.
[0028]
The adhesive tape with a diffraction grating pattern of the present invention is obtained by molding a diffraction grating pattern such as a hologram on an adhesive tape or adhesive tape made of a plastic film. By providing the diffraction grating pattern, the adhesive tape of the present invention is provided. The adhesive tape of the present invention, which provides the anti-counterfeiting effect on the main body and displays the brand character and specific attributes of the genuine product such as specific characters, trademarks, designs, marks using the diffraction grating pattern, is the genuine product main body. And when pasted and used as an identification tool on its wrapping paper or packaging container, it becomes easy to distinguish between genuine products and counterfeit products or counterfeit products, improving the security of genuine products, This has the effect of stopping troubles and damage caused by counterfeit and counterfeit products.
[Brief description of the drawings]
FIG. 1 is a side sectional view of an adhesive tape with a diffraction grating pattern of the present invention.
FIG. 2 is a side sectional view of another adhesive tape with a diffraction grating pattern of the present invention.
[Explanation of symbols]
A, B ... Adhesive tape with diffraction grating pattern 1 ... Tape-shaped film substrate 2, 12 ... Diffraction grating pattern 3, 14 ... Reflective metal vapor deposition layer 4, 15 ... Adhesive layer

Claims (3)

A diffraction grating pattern is embossed on one side of a tape-shaped plastic film substrate with an embossing roll, a light-reflective metal deposition layer is formed on the surface of the diffraction grating pattern by vacuum deposition, and an adhesive layer is formed on the deposition layer surface. A method for producing an adhesive tape with a diffraction grating pattern , which comprises coating and seasoning . A diffraction grating pattern forming layer is laminated on one side of a tape-shaped plastic film substrate by coating , and the diffraction grating pattern is embossed on the surface of the diffraction grating pattern forming layer with an embossing roll, and the surface of the diffraction grating pattern is vacuumed. A method for producing an adhesive tape with a diffraction grating pattern, comprising: forming a light reflective metal vapor deposition layer by vapor deposition ; coating an adhesive layer on the vapor deposition layer surface ; and seasoning . The method for producing an adhesive tape with a diffraction grating pattern according to claim 1 or 2, wherein the adhesive layer is formed using a pressure-sensitive or heat-sensitive adhesive or a rewet adhesive.

Images