TWI496694B - Roll of hot stamping material and formation thereof - Google Patents

Description

Hot stamping coil and hot stamping coil manufacturing method

The present invention relates to a coated web for the surface of a product, and more particularly to a hot stamping coil and a method of making the same.

The bronzing process refers to transferring the pattern on the bronzing film to a bronzing object so as to create various patterns on the bronzing material. The traditional bronzing process uses the action of temperature and pressure to transfer the glue layer and the coating layer attached to the bronzing film to the bronzing material to form a bronzing pattern with a metallic effect on the bronzing object.

For a bronzing film in which the bronzing pattern is a laser pattern, the conventional laser bronzing film is coated on one side of a plastic film with a release layer, and then a preform is formed on the release layer and formed in the formed layer. The laser pattern is then plated with a metal layer on the shaped layer having the laser pattern, and then the hot sol layer is coated on the metal layer, thereby forming a laser bronzing film. Next, by applying pressure heating, the gilded object is bonded to the side having the hot sol layer, and after peeling off the plastic film and the release layer, a laser gilding pattern is formed on the object to be scalded.

The above-mentioned molding layer covering the metal layer has the effect of protecting the metal layer. However, the heat resistance of the conventional molding layer is not good, thereby increasing the manufacturing difficulty in the heating and pressurization process, and limiting the usable process while molding. The scratch resistance of the layer is not good, so the effect of protecting the texture layer is limited.

Taiwan Patent Publication No. I299694 discloses a laser bronzing film for curing paint and a method for preparing the same, which is coated on a side of a plastic film with a non-adhesive cured coating layer on the one side of the plastic film. After curing, it has a laser grain pattern, and then a metal layer and a hot melt layer are successively formed on the cured coating layer to form a bronzing film. The above method omits the step of forming a release layer between the general plastic film and the laser pattern layer, but it is still impossible to grasp the material stability of the existing cured coating without the release layer.

The Chinese Patent Application Publication No. 202242391 discloses a bronzing film structure comprising a plastic film, a UV-strengthening coating layer, a coating layer and a hot melt layer. This structure is characterized by a surface texture of the plastic film, which can directly form a UV-strength coating layer to shorten the process. However, after the plastic film is removed, the texture is exposed to the outside and the ruthenium is copied.

According to the above, it is necessary to develop a bronzing structure which can be produced quickly and in a large amount and which can ensure the effect of safety and security.

With regard to the above problems, a bronzing coil and a manufacturing method thereof can be applied to a high-efficiency, low-cost continuous roll-to-roll or reel process, and therefore, a structure of a bronzing coil can be used. The high temperature resistant and scratch resistant UV adhesive replaces the hot forming process of a conventional primer and prevents the pattern from being replicated after molding.

In view of the above problems, a hot stamping coil and a method of making the same, which provide a patterned roller having a light release force, are applied to a continuous roll-to-roll process to produce a hot stamping coil.

According to the above, a hot stamping coil comprises: a plastic base layer having a release structure on one side of the plastic base layer; an ultraviolet light curing pattern layer formed on the release structure of the plastic base layer, wherein the ultraviolet light curing pattern The layer is pseudo-adhered to the release structure, and a pattern of the UV-curable pattern layer is located away from the side of the release structure; a plating layer covers the pattern of the UV-curable pattern layer; and a bronzing paste or A self-adhesive is applied to the coating.

In one embodiment, the release structure is a release layer covering the face of the plastic base layer or surface-treated for the face of the plastic base layer.

In one embodiment, the plating layer is a metal layer or a dielectric layer.

In one embodiment, the metal layer comprises an aluminum plated layer comprising a layer of zinc sulfide, magnesium fluoride or cerium oxide.

In an embodiment, a resin layer is further disposed between the release structure and the ultraviolet curing pattern layer.

According to the above, a method for manufacturing a bronzing coil material is produced by a roll-to-roll process, the method of manufacturing the bronzing coil material comprising: providing a plastic base layer roll, wherein a surface of the plastic base layer roll comprises a release structure; An ultraviolet glue layer on the plastic substrate coil Disposing a structure; transferring a pattern on one side of the ultraviolet adhesive layer with a patterning roller of a light release force and simultaneously curing the ultraviolet adhesive layer to form an ultraviolet curing pattern layer, wherein the ultraviolet curing pattern layer Forming a dummy layer on the release structure; forming a pattern covering the UV-curable pattern layer; and forming a bronzing paste or a self-adhesive on the plating layer.

In one embodiment, the step of patterning the roller onto a side of the ultraviolet adhesive layer and simultaneously curing the ultraviolet adhesive layer includes synchronizing the pattern onto the surface of the ultraviolet adhesive layer to The ultraviolet light layer is irradiated by ultraviolet light.

In one embodiment, the step of forming the plating layer comprises sputtering or vapor depositing a metal layer or a dielectric layer.

In one embodiment, the pattern is located on a side away from the release structure.

In one embodiment, providing the plastic substrate web comprises providing a polyethylene terephthalate, a polycarbonate, a polypropylene or a polypropylene coil.

In one embodiment, the step of transferring a pattern onto one side of the ultraviolet adhesive layer with a patterning roller of a light release force and simultaneously curing the ultraviolet light adhesive layer to form an ultraviolet light curing pattern layer includes providing a light separation The patterning roller of the type force transfers the pattern, and when the patterned roller of the light release force leaves the ultraviolet curing pattern layer, the ultraviolet curing pattern layer remains attached to the release structure.

In one embodiment, before the step of forming the ultraviolet adhesive layer on the release structure of the plastic base layer roll, further comprising forming a resin layer on the release structure of the plastic base layer web.

A hot stamping coil is produced by a roll-to-roll process. The hot stamping coil comprises a plastic base layer having a release structure on a surface, the ultraviolet adhesive layer covers the release structure, and the ultraviolet adhesive layer is patterned by a light release force. The roller is transferred to a pattern and simultaneously cured to form an ultraviolet curing pattern layer. The patterned roller has a release property to the ultraviolet curing pattern layer, and then the plating layer and the bronzing rubber respectively cover the above structure. The bronzing coil is suitable for mass production in a roll-to-roll process. After the bronzing coil is bonded to the carrier, the release structure and the plastic base layer are removed, and the pattern is buried in the structure to prevent improper copying.

In order to further understand the techniques, means and effects of the present invention in order to achieve the intended purpose, refer to the following detailed description of the invention and the accompanying drawings. The object, features, or characteristics of the present invention can be obtained from an in-depth and specific understanding, but the drawings are only provided for reference. It is not intended to limit the invention.

5,5’‧‧‧ hot stamping coil

10‧‧‧Plastic base

12‧‧‧ release structure

13‧‧‧ resin layer

14‧‧‧UV curing pattern layer

16‧‧‧ plating

18‧‧‧ bronzing glue

18'‧‧‧Self-adhesive

19‧‧‧ Carrier

19’‧‧‧paper carrier

20,22,24,26,28,30,32,34‧‧

1 is a schematic cross-sectional view of a structure in accordance with an embodiment of the present invention.

Figure 2 is a cross-sectional view showing the structure of a second embodiment of the present invention.

Figure 3 is a block diagram showing the steps of making a bronzing coil in a roll-to-roll or roll process according to one embodiment of the present invention.

Figure 4 is a block diagram showing the steps of applying a bronzing coil according to an embodiment of the present invention.

Although bronzing technology has been in development for a long time, there are still many areas for improvement. In view of the performance of bronzing, the control of bronzing temperature is very important. If the bronzing temperature is too high, it may cause loss of metallic luster, foaming, unclear edges, paste printing and other printing damage. If the bronzing temperature is too low, bronzing and writing may occur. It is not even possible to stamp. In general, the temperature of the roll-to-roll or roll-to-roll process should be controlled above 190 °C, and the temperature of the roll-to-film blanching process should be controlled at 130 °C. The temperature of the film-to-film blanching process at 150 ° C is controlled at 100 ° C to 120 ° C.

For a laser bronzing film that generally uses a primer, it may be possible to use a plate-to-plate blanching process; however, if a higher-temperature blanching process is to be used, a laser bronzing film including a formed layer cannot withstand high temperature. The present invention is intended to provide a bronzing coil material that can be produced by a roll-to-roll or roll-to-roll process. The composition of the bronzing coil provided by the present invention is resistant to the higher temperature operating conditions of the roll-to-roll or roll-to-roll process. High temperature.

Moreover, the bronzing coil provided by the present invention replaces the primary layer in the general hot rolling process by using ultraviolet glue (UV glue), and the high temperature resistance of the bronzing coil becomes a solid layer at the same time as the transfer pattern. Therefore, the forming texture formed by the ultraviolet glue becomes a solidified layer after being formed; in the subsequent hot stamping process or the use of the product and the use/application conditions of the high temperature environment, the texture of the cured layer is not deformed, so The UV curable layer is preferred over a patterned layer that retains the texture but still retains the properties of the plastic.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional view showing the structure of a first embodiment of the present invention. Referring to FIG. 1, the bronzing coil 5 of the present invention comprises a plastic base layer 10, a release structure 12, an ultraviolet curing pattern layer 14, a plating layer 16, and a bronzing rubber 18 stacked in sequence. In the first embodiment, the plastic The base layer 10 is used to carry/support the above other structures, and has certain tensile strength and heat resistance, for example, but not limited to, for example, polyethylene terephthalate (PET), polycarbonate ( Polycarbonate, PC), Oriented polypropylene (OPP) or Polypropylene (PP), Polyvinyl chloride (PVC), Polyethylene-vinyl acetate (PE and EVA, PEVA), Polyethylene - Ethylene-vinyl acetate (EVA), etc.

Next, a release structure 12 is formed on one surface of the plastic base layer 10. In a first embodiment, the surface of the plastic base layer 10 may be surface treated to form the release structure 12 or cover a release layer on the surface of the plastic base layer 10 as the release structure 12. Next, an ultraviolet adhesive layer is applied on the surface of the release structure 12, and the ultraviolet adhesive layer is rolled by the patterned roller and simultaneously cured to form the ultraviolet light curing pattern layer 14. In the first embodiment, the ultraviolet light curing pattern layer 14 includes a pattern 141 transferred by a patterning roller of a light release force on a surface farther from the release structure 12, for example, a holographic pattern is transferred to the ultraviolet via a roller. The surface of the ultraviolet curable pattern layer 14 contacting the release structure 12 is lightly patterned without being patterned. Secondly, the ultraviolet adhesive layer (uncured UV adhesive) and the ultraviolet curing pattern layer 14 are pseudo-adhered or pseudo-adhesive to the release structure 12, and the ultraviolet-curable pattern layer 14 can be peeled off and released in subsequent fabrication. Structure 12.

It is to be noted that the pattern 141 transferred by the patterning roller of the light release force may be distributed over the entire or a part of the ultraviolet curing pattern layer 14. Secondly, the patterned roller (not shown) of the light release force enables the ultraviolet curing pattern layer 14 to be effectively separated from the roller, so that the ultraviolet curing pattern layer 14 is still falsely attached to the plastic substrate. Thereafter, a plating layer 16 is formed on the ultraviolet curing pattern layer 14 in an appropriate manner, wherein the plating layer 16 is overlaid on the pattern 141 on the ultraviolet curing pattern layer 14. In the first embodiment, the plating layer 16 may be a metal layer, such as an aluminum plated layer, which serves as a reflective layer for the pattern 141. Alternatively, the coating 16 can be a dielectric layer such as zinc sulfide, cerium oxide, aluminum, nickel, or chromium as a transparent or opaque medium.

Finally, a hot stamping glue 18 is applied to the plating layer 16 for bonding to the subsequent carrier 19. Therefore, in the bronzing roll 5 of the present invention, the conventional photofinished layer 14 is replaced with the ultraviolet curable pattern layer 14, so that the bronzing roll 5 of the present invention can be produced by a roll-to-roll or roll process. Next, the bronzing pattern 141 is located between the ultraviolet curable pattern layer 14 and the plating layer 16. In the subsequent product, after the ultraviolet curing pattern layer 14 is peeled off from the release structure 12, the bronzing is performed. The pattern 141 is buried in the structure, so the counterfeiter cannot copy the pattern 141 in a non-destructive manner. Further, the bronzing roll 5 of the present invention can replace the hot melt of Taiwan Invention Patent Publication No. I299694 with a bronzing rubber 18, and the effect of the pattern 141 can be optimized.

Figure 2 is a cross-sectional view showing the structure of a second embodiment of the present invention. Different from the first embodiment, first, a resin layer 13 is disposed between the release structure 12 of the bronzing roll 5' and the ultraviolet curing pattern layer 14, that is, the resin layer 13 is formed before the ultraviolet adhesive layer is coated. The UV-curable pattern layer 14 is formed on the release structure 12 by applying an ultraviolet light adhesive layer, pattern shifting, and curing. The function of the resin layer 13 is to ensure that the ultraviolet light curing pattern layer 14 is not peeled off from the release structure 12 during the process. Secondly, the difference from the first embodiment is that a self-adhesive 18' is formed on the plating layer 16, such as an acrylic adhesive, an optically clear adhesive (OCA) or a double-sided adhesive, etc. The glue 18' replaces the bronzing rubber 18 of the first embodiment, thus increasing the use of the web of the present invention, such as when the article is a paper carrier 19'.

According to the above, in the application of the sticker, after the bronzing roll 5' is attached to the paper carrier 19', the plastic base layer 10 such as polyethylene terephthalate (PET) and/or the release structure are added. 12 is removed, the structure of the ultraviolet curable pattern layer 14 having the grain pattern, the plating layer 16 and the self-adhesive 18', or the structure of the release structure 12 is actually thin, so it is difficult to further from the paper. The carrier 19' is removed to prevent the movement and the counterfeiting.

It is to be noted that in the field of sticker applications, it is conventional to use a primer or a resin layer as a texture pattern layer. In the conventional structure, if the load-bearing/supporting primer or the plastic base layer of the resin layer is removed during application, the texture pattern may be destroyed, so that the plastic base layer capable of supporting/supporting may not be removed during application. . In this case, as long as the heat is applied to the conventional film, the film is easily peeled off from the paper carrier by the heat, and the film is easily attached to the other carrier, so that the conventional structure cannot prevent the transfer, and thus To achieve the purpose of anti-counterfeiting.

However, the bronzing coil of the present invention is patterned and cured by an ultraviolet glue layer. In the application of the sticker, after the bronzing coil of the present invention is applied as a film and attached to the paper carrier, the plastic base layer or the release structure can be removed, and only the ultraviolet curing pattern layer having the grain pattern is retained. The coating and self-adhesive (or plus release structure) rest on the paper carrier. In this way, even if the person applies heat to the film and the paper carrier, even if the film is peeled off from the paper carrier, since the film has no support of the plastic substrate, it is difficult to peel the film again. Material again application. Therefore, the bronzing coil of the present invention has the function of preventing the transfer of the mark, thereby achieving the purpose of anti-counterfeiting.

Figure 3 is a block diagram showing the steps of making a bronzing coil in a roll-to-roll or roll process according to one embodiment of the present invention. Referring to FIG. 3, step 20: providing a plastic base web and including a release structure on a surface of the plastic base web. It should be noted that the release structure may be formed by pressing the release layer coil with the plastic base layer coil, or by subjecting the plastic base layer to surface treatment to obtain a release structure formed on the surface of the plastic base layer coil. Next, in step 22, an ultraviolet glue layer is formed on the release structure, wherein the ultraviolet glue layer can be formed on the release structure of the plastic base layer by coating, and the ultraviolet glue can be formed. A resin layer may be formed before the layer. Step 24: Apply a light release force patterned roller to transfer a pattern to the ultraviolet adhesive layer and simultaneously cure the ultraviolet adhesive layer to form an ultraviolet light curing pattern layer. The patterned roller can cover the surface of a roller by means of encapsulation, and the seam after the coating is subjected to release treatment, so that the joint also has a light release force. When the pattern is transferred to the ultraviolet adhesive layer, the UV light is used to illuminate the UV adhesive layer just after the pattern is transferred, and the surface of the roller and the seam after the coating are applied to the UV cured pattern layer. The release property is such that the UV-curable pattern layer remains attached to the release structure.

Next, in step 26, a plating layer is formed on the ultraviolet light curing pattern layer. The method of forming the plating layer may be general physical deposition, such as sputtering or vapor deposition of a metal layer or a dielectric layer, wherein the metal layer may be used as a pattern reflection of the ultraviolet light curing pattern layer, and the dielectric layer may be a transparent layer. Then, step 28: forming a bronzing glue on the plating layer, for example, applying a bronzing glue to the plating layer by coating. Secondly, the bronzing adhesive is an adhesive having a curing temperature higher than 100 ° C, and may be a solvent type or a solventless type. In this case, the thickness of the bronzing glue on the plating layer is smaller than that of the general hot melt, and the bonding with the subsequent carrier is taken into consideration, and the pattern performance quality of the ultraviolet light curing pattern layer is better. It can be understood that, in view of the structure of the second embodiment of the present invention, the bronzing rubber can also be replaced by a self-adhesive.

Figure 4 is a block diagram showing the steps of applying a bronzing coil according to an embodiment of the present invention. Step 30: Providing a hot stamping coil and a carrier, wherein the carrier may be a plate or a coil, and the material thereof may be artificial leather, woven fabric, non-woven fabric or the like. Step 32: laminating the bronzing coil and the carrier, wherein the bronzing coil has a bronzing surface, and the surface of the bronzing adhesive is bonded to the contact carrier, and the bronzing of the bronzing coil is very thin, so the pattern performance is not affected. Step 34: Remove the plastic base layer of the bronzing coil or include removing the release structure. It should be noted that when removing the plastic sheet of bronzing coil After the base layer and the release structure, the plane of the UV-curable pattern layer is exposed, but the pattern of the UV-curable pattern layer is located in the structure without being exposed, so that the pattern can be prevented from being improperly copied. It can be understood that when the bronzing rubber is replaced by a self-adhesive, the carrier material can be a paper material. In addition, since the portion which is stuck on the carrier and the bronzing coil is used as the film material is very thin and has no support body support/loading, the effect of preventing the transfer can be achieved, thereby achieving the purpose of anti-counterfeiting.

While the invention has been discussed in terms of some embodiments, it should be understood that the invention is not limited. The embodiments herein are to be construed as illustrative, and many modifications, variations, and other embodiments are possible within the scope of the invention, which may be added, removed, and/or recombined. In addition, processing steps can be added, removed, or reordered. Many different designs and methods are also available.

20, 22, 24, 26, 28 ‧ ‧ steps

Claims (12)

A hot stamping coil comprises: a plastic base layer having a release structure on one side of the plastic base layer; an ultraviolet light curing pattern layer formed on the release structure of the plastic base layer, wherein the ultraviolet light curing pattern layer is false Adhering to the release structure, and a pattern of the UV-curable pattern layer is located away from the side of the release structure; a plating layer covers the pattern of the UV-curable pattern layer; and a hot stamping or self-adhesive The glue is applied to the coating. The bronzing sheet of claim 1, wherein the release structure is a release layer covering the face of the plastic base layer or surface-treated for the face of the plastic base layer. The bronzing coil according to claim 1 or 2, wherein the plating layer is a metal layer or a dielectric layer. The bronzing sheet of claim 3, wherein the metal layer comprises an aluminized layer comprising a layer of zinc sulfide, magnesium fluoride or cerium oxide. The bronzing coil according to claim 3, further comprising a resin layer disposed between the release structure and the ultraviolet curing pattern layer. A method for manufacturing a bronzing coil material, which is produced by a roll-to-roll process, the method for manufacturing the bronzing coil material comprises: providing a plastic base layer coil, wherein a surface of the plastic base layer coil comprises a release structure; forming an ultraviolet a photoresist layer is disposed on the release structure of the plastic substrate roll; a patterned roller is used to transfer a pattern on one side of the UV adhesive layer and the UV adhesive layer is simultaneously cured to form an ultraviolet curing pattern layer, wherein The ultraviolet curing pattern layer is pseudo-adhered to the release structure; Forming a pattern covering the UV-curable pattern layer; and forming a bronzing paste or a self-adhesive on the plating layer. The method for manufacturing a hot stamping coil according to claim 6, wherein the step of patterning the roller to transfer a pattern onto one side of the ultraviolet adhesive layer and simultaneously curing the ultraviolet adhesive layer comprises transferring the pattern The ultraviolet glue layer is irradiated with an ultraviolet light in synchronization with the surface of the ultraviolet adhesive layer. The method for producing a bronzing coil according to claim 6 or 7, wherein the step of forming the plating layer comprises sputtering or evaporating a metal layer or a dielectric layer. The method of manufacturing a bronzing coil according to claim 6 or 7, wherein the pattern is located on a side away from the release structure. The method for producing a hot stamping coil according to claim 6 or 7, wherein the providing the plastic base layer comprises providing a polyethylene terephthalate, a polycarbonate, a certain polypropylene or A polypropylene coil. The method for manufacturing a bronzing coil according to claim 10, wherein the patterning roller transfers a pattern on one side of the ultraviolet adhesive layer and simultaneously cures the ultraviolet adhesive layer to form an ultraviolet curing pattern. The step of layering includes providing a patterning roller for transferring the light force to transfer the pattern, and when the patterning roller of the light release force leaves the ultraviolet curing pattern layer, the ultraviolet curing pattern layer remains attached to the release pattern. Structurally. The method for manufacturing a bronzing coil according to claim 10, further comprising forming a resin layer on the plastic before the step of forming the ultraviolet adhesive layer on the release structure of the plastic substrate roll The release structure of the base layer coil.