JPH07186258A - Method for making rainbow hologram on the surface of printed matter and printed matter by the same - Google Patents

Abstract

PURPOSE:To obtain a printed matter with good appearance by transferring directly a rainbow hologram on a part or the whole of the printed surface of a printed matter by using a heat resistant film, on which a reflection type rainbow hologram is formed, without shielding the printed surface, etc., of the printed matter. CONSTITUTION:An uneven pattern of light interference fringes is formed on the surface of a heat resistant film 6 and a metal 7 such as aluminum is vapor- deposited on the film 6 to form a reflection type rainbow hologram 5. A part or the whole of the printed surface la of a printed matter l is coated with a thermoplastic resin film, the metal 7 vapor deposition surface 5a of the rainbow hologram 5 is heated to stick the vapor deposition surface 5a to the thermoplastic resin film 3 of the printed surface 1a, the rainbow hologram 5 is stripped off after being cooled, and the rainbow hologram 5 is transferred to the thermoplastic resin film 3 without shielding the printed surface 1a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of forming a rainbow hologram on the surface of a printed matter and the printed matter thereof. More specifically, the interference fringes of light recorded on a photosensitive material are used as a mold to form uneven fringes. As a reflection rainbow hologram formed by forming a concave-convex pattern of light interference fringes on the film surface from the mold, and vapor-depositing a metal such as aluminum on the film having the concave-convex pattern of light interference fringes. The present invention relates to a method for forming a rainbow hologram on the surface of a printed matter by using the same and a printed matter thereof.

[0002]

2. Description of the Related Art Holograms are formed by interference fringes recorded on a light-sensitive material, and it is possible to reproduce light by causing diffraction of light to reproduce information by the interference fringes. For this reason, a hologram having an uneven pattern on the surface of the object, a surface relief hologram or an embossing method (embossing) instead of the interference fringes using a printing technique has been generalized.

Photoresists (photosensitive resins), thermoplastics and the like are used as photosensitive materials for producing surface relief holograms. To make a press die from this, light interference fringes are formed on the photoresist. , Make a relief hologram on the surface, and put C on the surface of the relief.
Vacuum deposition of U, AG, etc., and CU, AG on the relief
Nickel plating is applied to the vapor deposition surface such as, and the nickel plating is removed from the surface relief hologram of the photoresist, whereby a nickel mold can be manufactured.

A rainbow hologram can be produced by heating and pressing the thermoplastic resin on the film from this mold. By using this mold as a mold roll or the like, rainbow holograms can be mass-produced. A reflective rainbow hologram is formed by vacuum-depositing a metal such as aluminum on the relief surface of the thermoplastic resin of the rainbow hologram.

[0005]

However, in the conventional method of attaching the reflection type rainbow hologram to the printing surface of the printed matter, the entire surface of the paper is hidden by the reflection type rainbow hologram, so that the printing surface cannot be seen. Was there. Therefore, in order to make the printed surface visible, it is necessary to print on the upper surface of the reflective rainbow hologram.

As a method of partially forming a reflection type rainbow hologram on the paper surface, a reflection type rainbow hologram made for foil stamping is used, and partial foil stamping in various shapes is performed on the paper surface. Had formed. Also in this case, the printed surface of the foil-pressed portion was hidden.

Further, in order to form a rainbow hologram without hiding the printed surface on the paper surface, the film before vapor deposition of metal such as aluminum may be laminated, but the work of partially laminating in various shapes Was complicated and could not improve work efficiency.

[0008] When a rainbow hologram is formed by applying a thermoplastic resin in the form of a film on the surface of the paper using a conventional die, the entire paper is heated to heat the thermoplastic resin film on the surface of the paper. Since it has to be heated to a high temperature and more water is evaporated from the paper than necessary, the water content of the paper changes, and there are drawbacks such as expansion and contraction and brittleness.

Further, when a thermoplastic resin film that can be used at low temperature is used, there is a possibility that blocking of paper and thermoplastic resin in the paper stack, blocking due to contact between the thermoplastic resin films after the product, etc. may occur. It has the drawback of being very expensive.

The present invention uses a heat-resistant film on which a reflective rainbow hologram is formed, so that a thermoplastic resin is applied to a part or the whole of the printed surface of the printed material without hiding the printed surface of the printed material. The purpose of this invention is to transfer and form a rainbow hologram directly onto the thermoplastic resin film on the paper surface by applying it in the shape of a sheet to obtain a printed matter having an excellent appearance.

[0011]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and a method for forming a rainbow hologram on the surface of a printed matter according to claim 1 is an interference of light recorded on a photosensitive material. The fringes are formed on the mold as uneven fringes, the heat-resistant film surface is formed with an uneven pattern of light interference fringes on the mold, and a metal such as aluminum is formed on the film having the uneven pattern of light fringes. Form a reflective rainbow hologram by vapor deposition, apply a thermoplastic resin to a part or the whole surface of the printed matter in a film shape, heat the metal deposition surface side of the rainbow hologram, and heat the thermoplastic surface of the printed matter. It is characterized in that a metal film deposition surface side is pressure bonded to a resin film, the rainbow hologram is peeled off after cooling, and the rainbow hologram is transferred to the thermoplastic resin film on the surface of the printed matter.

A printed matter having a rainbow hologram formed on the surface of the printed matter according to claim 2 is obtained by applying a thermoplastic resin in a film shape on a part or the whole surface of the printed matter,
A rainbow hologram formed by vapor-depositing a metal on a heat-resistant film having an uneven pattern of light interference fringes is heated on the metal deposition surface side of the rainbow hologram, and the metal deposition surface side of the rainbow hologram is applied to the surface of the printed matter. The present invention is characterized in that a rainbow hologram is transferred to a thermoplastic resin film applied on the surface of a printed matter by pressure bonding to a plastic resin film.

[0013]

According to the method of forming a rainbow hologram on the surface of a printed matter according to claim 1 of the present invention, a thermoplastic resin is applied in a film shape on a part or the whole surface of the printed matter, and the metal of the rainbow hologram is formed. Since the vapor deposition surface side of is heated, the vapor deposition surface side of the metal is pressure-bonded to the thermoplastic resin film on the surface of the printed matter, the rainbow hologram is peeled off after cooling, and the rainbow hologram is transferred to the thermoplastic resin film on the surface of the printed matter. , A rainbow hologram having an uneven pattern of light interference fringes can be easily and quickly transferred to a part or the whole surface of the printed matter, and it is not necessary to heat the printed matter to a high temperature, and the water content of the printed matter is more than necessary. There is no risk of evaporation, there is no risk of expansion or contraction or brittleness of the water content of the printed matter, and the printing surface is not damaged.

According to the printed matter in which the rainbow hologram is formed on the surface of the printed matter according to the second aspect of the present invention, a thermoplastic resin is applied in a film shape on a part or the whole surface of the printed matter, and the interference fringes of light are formed. A rainbow hologram formed by vapor-depositing a metal on a heat-resistant film having a concavo-convex pattern is heated on the metal deposition surface side, and the metal deposition surface side of the rainbow hologram is pressure-bonded to the thermoplastic resin film applied to the surface of the printed matter. However, because the rainbow hologram was transferred to the thermoplastic resin film applied to the surface of the printed matter, there is no need to heat the printed matter to a high temperature, and there is no risk of moisture evaporating from the paper of the printed matter more than necessary. There is no fear that the water content will change and it will expand or contract, or become brittle.
Does not damage the printing surface.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for forming a rainbow hologram on the surface of a printed matter and a printed matter according to the present invention will be described in detail below with reference to the drawings. 1 and 2 show an embodiment of a method for forming a rainbow hologram on the surface of a printed matter according to the present invention.

According to the present invention, interference fringes of light recorded on a light-sensitive material are formed on a mold as uneven interference fringes, and an uneven pattern of light interference fringes is formed on the heat-resistant film surface of the mold. Metal such as aluminum is vapor-deposited on a film having an uneven pattern of light interference fringes to form a reflection type rainbow hologram, and a thermoplastic resin is applied to a part or the whole surface of the printed matter in a film shape, and the rainbow hologram of the rainbow hologram is formed. The metal vapor deposition surface side is heated, the metal vapor deposition surface side is pressure-bonded to the thermoplastic resin film on the surface of the printed matter, the rainbow hologram is peeled off after cooling, and the rainbow hologram is transferred to the thermoplastic resin film on the surface of the printed matter. It is a thing.

As shown in FIG. 1, a thermoplastic resin is applied to a part or the whole of the surface of the printed material 1 on the printing surface 1a side by a roll coater, a silk screen printing machine, a flexo printing machine, a gravure printing machine or the like in a film shape. And dried in the drying process.

A metal 7 such as aluminum is vapor-deposited on a heat-resistant film 6 having an uneven pattern of light interference fringes to form a reflection type rainbow hologram 5. The deposition surface 5a of the rainbow hologram 5 on which the metal 7 such as aluminum is deposited is instantaneously heated and pressed onto the thermoplastic resin film 3 on the printed surface 1a side of the printed material 1 to make the thermoplastic resin film 3 on the printed surface 1a side uneven. The rainbow hologram 5 made of a relief pattern is transferred, and after the transfer, the rainbow hologram 5 is peeled off.

Deposition surface 5a of the rainbow hologram 5
Is heated to 100 ° C. to 120 ° C., the rainbow hologram 5 is formed in the shape of a heating roll, and the thermoplastic resin film 3 on the printing surface 1a side of the printed material 1 is sequentially heated and pressed.

When the thermoplastic resin film 3 on the printed surface 1a side of the printed matter 1 is heated and pressed by the vapor deposition surface 5a on which the metal 7 such as aluminum of the heated rainbow hologram 5 is vapor deposited, the printed surface 1a of the printed matter 1 is heated. The thermoplastic resin film 3 on the side is instantaneously raised to the softening temperature, which also increases the surface temperature of the printed surface 1a of the printed material 1, but the temperature of the printed material 1 itself changes the properties of the printed surface 1a and the paper. It doesn't rise as much.

Since the thermoplastic resin film 3 used in the present invention is required to have a releasing effect on the metal 7 such as aluminum, the thermoplastic resin and the releasing agent preferably have the following compositions.

The thermoplastic resin used in the present invention is a resin obtained by mixing and polymerizing 1 to 4 kinds of monomers such as acrylic acid and its ester, methacrylic acid and its ester, styrene, ethylene, vinyl acetate and vinyl chloride. , Chlorinated polypropylene resin, chlorinated rubber, saturated polyester resin, or a mixture of 2 to 4 kinds of toluene, xylene, ethyl acetate, methyl acetate,
Low and medium boiling points of n-propyl acetate, isopropyl acetate, butyl acetate, isobutyl acetate, acetone, xylene, methyl acetate, isopropyl alcohol, ethanol, etc.
Thermoplastic resin dissolved in a solvent. Alternatively, a thermoplastic resin in which water and alcohol are dissolved or dispersed in a solvent which is used alone or as a mixture.

Examples of the releasing agent used in the present invention include surfactants such as Elenone 19M (Daiichi Kogyo Seiyaku Co., Ltd.), Prysark A208B (Daiichi Kogyo Seiyaku Co., Ltd.), ADEKA COL CS.141E (Asahi). In addition to Denka Kogyo Co., Ltd., lecithin (Ajinomoto Co., Inc.), etc., silicon, for example, Shin-Etsu Silicon F96 (Shin-Etsu Chemical Co., Ltd.), Shin-Etsu Silicon KS702 (Shin-Etsu Chemical Co., Ltd.), etc. alone or 2 Mix and use more than one type.

The composition of the thermoplastic resin used in the present invention is as follows.

Thermoplastic resin MA-1 (Kanegafuchi Chemical Industry Co., Ltd.) 24.2% by weight GT material (Kanegafuchi Chemical Industry Co., Ltd.) 28.4% by weight CM (Kanegafuchi Chemical Industry Co., Ltd. )) 3.6 wt% release agent lecithin (Ajinomoto Co., Inc.) 0.2 wt% Elenone 19M (Daiichi Kogyo Seiyaku Co., Ltd.) 1.0 wt% thinner 42.6 wt% (toluene 80%, acetic acid) Ethyl 20%)

Next, examples will be described. As shown in FIG. 1, a part of or a front surface of a coated ball (28 kg) as a printed material 1 on the printing surface 1a side is coated with a thermoplastic resin in a film shape with a thickness of 2.5 to 3.5 μ using a roll coater. 3g / m ² after coating with hot air and a far infrared dryer
A thermoplastic resin film 3 composed of a DRY film was obtained on the printing surface 1a side.

The reflection type rainbow hologram 5 was transferred onto the thermoplastic resin film 3 on the printing surface 1a side of the printed material 1 by the heat and pressure of the heat roller 120 ° C. and the pressure roller 20t. The same pattern as the uneven pattern of the interference fringes of light formed on the metal deposition surface 5 a of the reflection type rainbow hologram 5 was transferred to the thermoplastic resin film 3.

FIG. 2 shows the construction of an embodiment of a pressure transfer device for a reflection type rainbow hologram. The pressure transfer device reflects the vapor deposition surface 5a of the reflection type rainbow hologram 5 outside. Of the reflection type rainbow hologram 5 by forming an endless body 15 of the reflection type rainbow hologram 5
The endless body 15 of the heating roller 11, the guide rollers 13, 1
It was built over four.

A pressure roller 17 is disposed below the heating roller 11, and the heating roller 11 and the pressure roller 17 are provided.
In between, the printed material 1 is fed with the thermoplastic resin film 3 on the printed surface 1a side of the printed material 1 as the upper surface.

The reflection type rainbow hologram so that the thermoplastic resin film 3 applied to the printed matter 1 is heated to about 100 ° C. to 120 ° C. by the heating roller 11 and pressed by the pressure roller 17 at a pressure of 20 t. The endless body 15 of No. 5 is instantaneously heated and pressed onto the thermoplastic resin film 3 on the printing surface 1a side of the printed matter 1.

A cooling fan 19 as a cooling device is arranged between the heating roller 11 and the guide roller 13. The cooling fan 19 cools the endless body 15 of the reflective rainbow hologram 5 and the thermoplastic resin film 3 on the printing surface 1a side of the printed material 1, and then, at the position of the guide roller 13, by the peeling means 21, the reflective rainbow. The endless body 15 of the hologram 5 and the thermoplastic resin film 3 on the printed surface 1a side of the printed matter 1 are peeled off.

At the position of the guide roller 13, the endless body 15 of the reflection type rainbow hologram 5 sharply curves to the upper left, and the peeling means 21 sends the printed matter 1 to the right. The peeling means 21 can be formed by an air blowing device. When the front end of the printed matter 1 is opened even by a little by blowing air, the printed matter 1 is easily separated from the endless body 15. Further, the guide rollers 13 and 14 prevent the endless body 15 from meandering and wrinkling.

The line speed during pressure transfer is the heating temperature,
It is appropriately selected depending on the pressure applied and the quality of the printed matter to be processed.

In the above description, one embodiment of the present invention has been described, and the thermoplastic resin may be used in combination with a pearl pigment for increasing the reflectance of light or other pigments. Various modifications can be made.

[0035]

The above is the method for forming a rainbow hologram on the surface of a printed material according to the present invention and the method and configuration of an embodiment of the printed material. According to such a method, a part of the surface of the printed material or A thermoplastic resin is applied in a film shape on the entire surface, the metal vapor deposition surface side of the rainbow hologram is heated, the metal vapor deposition surface side is pressure bonded to the thermoplastic resin film on the surface of the printed matter, and the rainbow hologram is peeled off after cooling. However, since the rainbow hologram was transferred to the thermoplastic resin film on the surface of the printed matter, it is possible to easily and quickly transfer the rainbow hologram having the uneven pattern of the light interference fringes to a part or the entire surface of the printed matter. It is not necessary to heat the printed matter to a high temperature without hiding the printed surface, etc., and there is no fear that water will evaporate more than necessary from the paper of the printed matter. No moisture content of the paper instead stretch to such or becomes brittle risk, there is no damaging the printing surface.

Further, according to a printed matter in which a rainbow hologram is formed on the surface of the printed matter, a thermoplastic resin is applied to a part or the whole surface of the printed matter in a film shape to obtain a heat-resistant film having an uneven pattern of light interference fringes. The deposition surface side of the metal of the rainbow hologram formed by depositing the metal is heated, and the deposition surface side of the metal of the rainbow hologram is pressure-bonded to the thermoplastic resin film applied to the surface of the printed matter to transfer the rainbow hologram. Therefore, a rainbow hologram having an uneven pattern of light interference fringes can be easily and quickly transferred onto a part or the whole surface of the printed matter,
There is no need to heat the printed material to a high temperature without hiding the printed surface of the printed material, there is no fear that water will evaporate more than necessary from the paper of the printed material, and the water content of the paper of the printed material will change and it will expand or contract and become brittle. It is possible to obtain a printed matter that is not likely to suffer from such problems as described above, does not damage the printed surface, and can significantly improve the appearance.

[Brief description of drawings]

FIG. 1 is a sectional view for explaining one step of a method for forming a rainbow hologram on the surface of a printed matter according to the present invention.

FIG. 2 is a sectional view schematically showing a pressure transfer device for explaining one step of a method of forming a rainbow hologram on the surface of a printed matter according to the present invention.

[Explanation of symbols]

 1 printed matter 1a printed surface 3 thermoplastic resin film 5 reflective rainbow hologram 5a metal vapor deposition surface 6 heat resistant film 7 metal 11 heating roller 13 guide roller 14 guide roller 15 endless body of reflective rainbow hologram 17 pressure roller 21 peeling device

Claims (2)

[Claims] 1. An interference fringe of light recorded on a photosensitive material is formed as an uneven interference fringe on a mold, and an uneven pattern of the interference fringe of light is formed on the heat-resistant film surface of the mold. Metal such as aluminum is vapor-deposited on a heat-resistant film having an uneven pattern of interference fringes to form a reflection type rainbow hologram, and a thermoplastic resin is applied in a film shape on a part or the whole surface of the printed matter, and the metal of the rainbow hologram is formed. Heating the vapor deposition surface side, press-bonding the metal vapor deposition surface side to the thermoplastic resin film on the surface of the printed matter, peeling the rainbow hologram after cooling, and transferring the rainbow hologram to the thermoplastic resin film on the surface of the printed matter. A method for forming a rainbow hologram on the surface of a printed matter. 2. Metal deposition of a rainbow hologram formed by coating a thermoplastic resin in a film shape on a part or the whole surface of a printed matter, and depositing a metal on a heat-resistant film having an uneven pattern of light interference fringes. The surface side is heated, the metal deposition surface side of the rainbow hologram is pressure-bonded to the thermoplastic resin film applied to the surface of the printed matter, and the rainbow hologram is transferred to the thermoplastic resin film applied to the surface of the printed matter. Characterized printed matter.