JPH08155364A - Paper surface-processing device - Google Patents

Abstract

PURPOSE: To make it possible to execute many kinds of surface lustering with one coating by varying the plate part formed on the surface of a base film and the plate part formed on the surface of a partial plate film. CONSTITUTION: The base film 16 formed of a UV permeable material is replaceably mounted at the outer peripheral surface of a pressurizing roll 6 and the partial plate film 17 cut to the desired shape smaller than the shape of the base film 16 is arranged of the UV permeable material within the range of this base film 16. The plate part is selected as a film having a mirror finished surface for the base film 16. The first partial plate film 17a and the second partial plate film 17b are so adhered by adhesives to the prescribed positions of the base film 16 so as to form rugged parts as the plate part on the partial plate film 17. The base film 16 surface and the partial plate film 17 surface are varied in such a manner. As a result, many kinds of surface lustering are executed with one coating.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper surface processing apparatus for applying an ultraviolet curable resin to an object to be coated such as a printed paper surface of a sheet for polishing and for forming fine irregularities such as holograms. It is a thing.

[0002]

2. Description of the Related Art A conventional paper surface processing device for applying a UV curable resin coating material to polish a sheet is to supply a sheet and a UV curable resin coating material to one side of the supplied sheet material. UV-curing by irradiating the endless film with ultraviolet rays through the coating part, a long endless film that is stretched over a large number of support rolls arranged on the downstream side of the coating part, and the sheet attached to the endless film It is equipped with an ultraviolet irradiation device that cures the resin paint, and the mirror surface or minute irregularities of the endless film that becomes the plate is transferred to the curing ultraviolet curing resin paint on the surface of the sheet, and the surface of the sheet is Glazed or frosted. In addition, in recent years, on the downstream side of the coating part, there is a pressure roll made of an ultraviolet-transparent material such as glass and having a built-in ultraviolet irradiator and a receiving roll thereof, and an object to be coated applied by the coating part. The surface of the pressure roll is equipped with a surface pressure curing unit that presses the coating surface of the pressure roll to the pressure roll side and cures it. It is transferred to the coated surface and cured by UV irradiation, and the surface of the sheet is polished or matted.

Further, a single processing film having an uneven portion formed on the surface is attached to the entire circumferential surface of the glass pressure roll,
A paper surface processing apparatus has also been proposed in which the coated surface of the object to be coated is pressure-bonded to a processed film to transfer the uneven portion.

[0004]

However, in a conventional paper surface processing apparatus that uses a long endless film as a plate, the endless film itself expands and contracts greatly, and alignment work with sheets is troublesome. Yes, it was not possible to form a surface on a part of the sheet different from the other parts, for example, to form a hologram on only a part of the surface of the sheet and to apply a normal glazing process to the other part. . In order to perform multiple types of processing on one sheet, it was necessary to replace the endless film by the number of types of processing and repeat the processing multiple times. Further, since the endless film is long, it is expensive if it is produced as a plate for forming irregularities each time. Further, when the endless film is used as a plate, when the ultraviolet curable resin coating is applied to a part of the object to be coated and only this part is processed, the pressing range of the endless film can be adjusted according to the processing range each time. Since it can not be done, the edge part of the coated surface is spread out, and as a result the plate border line becomes unclear, so the processing of the edge part becomes unstable and a phenomenon (marginal) that can not be processed clearly occurs. I will end up.

Further, in the conventional paper surface processing apparatus which transfers and cures simultaneously when passing through a pressure roller made of glass, the glass surface is directly contacted with the ultraviolet curable resin, so that the cleaning work is difficult because of a great deal of dirt. It takes a great deal of effort to produce a glass pressure roll having various irregularities formed on the surface,
It is not easy and the work of exchanging the pressure roll is complicated.
In addition, it is practically difficult for the conventional paper surface processing apparatus that winds one processed film around a glass pressure roll to form a plurality of types of uneven portions on one processed film.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a paper surface processing apparatus capable of performing various kinds of surface polishing processing once coating.

[0007]

DISCLOSURE OF THE INVENTION The present invention has been proposed in order to achieve the above-mentioned object. According to the first aspect of the present invention, a supply unit for supplying an object to be coated such as paper and the like are supplied. A coating part for applying an ultraviolet curable resin coating on one surface of the object to be coated, a pressure roll made of an ultraviolet-transparent material and having a built-in ultraviolet irradiator, and a receiving roll for the same are provided. A surface pressure curing section that presses the coating surface of the coated object to the pressure roll side to adhere and cure it,
In the paper processing apparatus equipped with, the pressure roll is replaceably attached to the outer peripheral surface of a base film made of an ultraviolet transmitting material, and is made of an ultraviolet transmitting material within the range of the base film. Then place the part plate film cut into a desired shape smaller than the base film,
The plate portion formed on the surface of the base film is different from the plate portion formed on the surface of the part plate film.

According to a second aspect of the present invention, in addition to the structure of the first aspect, a part plate film is attached to the surface of the base film.

According to a third aspect of the present invention, in addition to the structure of the first aspect, the base film is cut out according to the shape and size of the part plate film, and the part plate film is placed in the cutout hole to form the base. It is characterized in that the surface of the film and the surface of the part plate film are flush with each other.

[0010]

The object to be coated such as paper is supplied to the coating section by the operation of the supply section, and the ultraviolet curable resin coating material is applied to one surface of the object to be coated when passing through the coating section. Then, when the object to be coated passes between the pressure roll and the receiving roll, since the base film on which the part plate film is arranged is wound on the outer peripheral surface of the pressure roll, the part plate film contacts. On the coated surface, the plate portion of the part plate film surface is cured by UV irradiation while being pressed onto the coated surface,
Since the base film comes into contact with the coated surface on which the part plate film is not adhered, the plate part on the surface of the base film is cured by irradiation with ultraviolet rays while being pressed.
Therefore, the plate portion formed on the surface of the part plate film is transferred to the coated surface where the part plate film contacts, and the coated surface where the part plate film does not contact is formed on the surface of the base film. A plate portion different from the plate portion is transferred.

According to the second aspect of the present invention, since the part plate film is attached to the surface of the base film, the plate part of the surface of the base film is transferred to the coated surface with which the base film is in contact, and the surface of the part plate film. The plate portion on the surface of the part plate film, which is different from the plate portion of the base film, is transferred deeper by the thickness of the part plate film on the coated surface in contact with.

According to the third aspect of the invention, since the part plate film is arranged in the cutout hole of the base film so that both films are flush with each other, the plate portion on the surface of the base film is provided on the coated surface with which the base film contacts. The plate portion of the surface of the part plate film, which is different from the plate portion of the base film, is transferred flush with the coated surface that is transferred and comes into contact with the surface of the part plate film.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a paper surface processing apparatus 1 includes a supply unit 3 for supplying an object to be coated 2 such as a sheet, and a coating unit 4 for applying an ultraviolet curable resin paint to one surface of the supplied object 2 to be coated. And an ultraviolet irradiator 5 made of an ultraviolet permeable material
Surface pressure curing in which a pressure roll 6 having a built-in roller and a receiving roll 7 thereof are included, and the coating surface of the object 2 to be coated applied by the coating section 4 is pressed and adhered to the pressure roll 6 side to be cured. It comprises a section 8 and a peeling section 9 for peeling the article 2 to be coated from the pressure roll 6.

The supply unit 3 stores the coated objects 2 such as sheets printed by a printing machine in a laminated state and supplies them to the coating unit 4 one by one.
Is positioned and the object 2 to be coated is sent out in synchronism with the operation of the coating section 4 electrically or mechanically related.

The coating portion 4 shown in FIG. 2 is such that the ultraviolet curable resin coating material can be applied only to a desired portion of the object to be coated 2, and the four edges are left on the desired surface of the object to be coated 2. Plate plate 10 for applying ultraviolet curable resin paint
A coating material supply roll 11, 11 for uniformly supplying an ultraviolet curable resin coating material to the coating plate plate 10;
It is provided with a plate roll 12 for winding the sheet and a backup roll 13. The ultraviolet-curable resin coating plate plate 10 cut according to the coating range of the ultraviolet-curable resin is wound around a plate roll 12 in a detachable state, and when the plate roll 12 rotates, the plate supply roll 11 comes into contact and rotates from the ultraviolet-curable resin. The paint adheres evenly to the surface. Then, when the article to be coated 2 supplied by the feed roll 14 passes between the plate roll 12 and the backup roll 13, the ultraviolet curable resin coating material adhering to the surface of the coating plate 10 is applied to the surface of the article to be coated 2. It is applied according to the shape of the coating plate 10. Therefore, by appropriately selecting the shape of the coating plate 10, it is possible to apply the ultraviolet curable resin coating material (form the coating surface 2 ′) only to a desired portion of the object to be coated 2.

The coating unit 4 is not limited to the above-mentioned structure, and may be, for example, a roll coater, a gravure coater, a screen type coater or the like.

The surface pressure curing unit 8 irradiates ultraviolet rays onto the coating surface 2'of the object 2 to be coated, which is conveyed by the belt conveyor 15 which is a conveying means, and cures it. A hollow pressure roll 6 made of a material, an ultraviolet irradiation device 5 such as an ultraviolet irradiation lamp provided inside the pressure roll 6, and a receiving roll 7 provided below the pressure roll 6 The base film 16 is attached to the entire surface of the pressure roll 6 in a replaceable state.

The base film 16 is made of polypropylene,
It is a film made of a material that transmits ultraviolet light, such as polyethylene terephthalate and polyethylene. Since this base film 16 also functions as a plate, if an appropriate small uneven portion is formed on the surface, generally the entire surface, as a plate portion, this uneven portion is transferred to the ultraviolet curable resin coated surface 2 '. It For example, if the concavo-convex portion is formed in a matte shape, the concavo-convex portion is transferred to the ultraviolet curable resin coated surface 2'to give a matte (matte finish). If the base film 16 having a smooth surface (mirror surface) as the plate portion is formed without forming the uneven portion, the UV-curable resin-coated surface 2'becomes a mirror surface, and general polishing processing can be performed. You can

In this embodiment, the part plate film 17 is attached within the range of the base film 16. Similar to the base film 16, the part plate film 17 is a film made of a material having ultraviolet transparency such as polypropylene, polyethylene terephthalate, and polyethylene, and has a fine uneven portion as a plate portion on the surface and has a desired shape. It is cut into pieces and attached to the base film 16 with an ultraviolet-transparent adhesive. Since the part plate film 17 can be selected separately from the base film 16 and cut into an appropriate shape and then attached to the base film 16, the base film 16 can be attached to a part of the ultraviolet curable resin coated surface 2 ′. Processing different from can be performed. Further, a plurality of part plate films 17 having different plate parts such as uneven parts and mirror surfaces may be attached.

For example, as shown in FIG. 5, a hologram is formed on a part (first printing region 18a) of one uncoated body 2 (sheet) and the other part (second printing region 18b). ) As a gloss surface and the remaining portion (third printing area 18c) as a matte surface, as shown in FIG. 6, a film having a mat-like uneven portion 19 as a plate portion on the entire surface is used as a base. The base film as the first part plate film 17a is selected by selecting the film 16 and selecting a film having a hologram uneven portion 20 formed on the surface as a plate part and cutting the hologram film in accordance with the part where the hologram is formed. A second part plate film 17b is obtained by adhering to a predetermined position of 16 with an adhesive and selecting a film having a mirror surface as a plate portion and cutting the film according to a portion forming a glossy surface. It glued to a predetermined position of the base film 16. In this case, when the first and second part plate films 17a and 17b are adhered to the base film 16, the uneven portion or the mirror surface, which is the plate part, is placed on the front side (the pressure roll 6).
When attached to the outside, attach it so that it faces outward. In addition,
As a means for attaching the part plate films 17a and 17b, an adhesive may be used, or a film having an adhesive layer previously formed on the back surface may be used.

The base film 16 thus prepared
And part plate film 17 (composite plate sheet 2
When 1) is wound around the pressure roll 6, as shown in FIG. 4, one end of the composite plate sheet 21 is fastened by one fastening member of the fastening groove 22 of the pressure roll 6, The other end is fixed by the other fixing member of the fixing groove 22, whereby the composite plate sheet 21 is attached to a predetermined position on the outer peripheral surface of the pressure roll 6. The back surface of the base film (for example, the entire back surface or both edges of the back surface) can be used without using a fastening member.
Alternatively, an adhesive layer may be formed in advance and the adhesive force of the adhesive layer may be used to fix the pressure roller 6. When the fixing is performed by the adhesive force as described above, since it is not necessary to operate the fixing member, the work of aligning the position of the base film is easy, and the fixing groove 22 and the fixing member are unnecessary, and the pressure roll is not required. Since 6 may be a cylindrical body, manufacturing becomes easy.

The composite plate sheet 2 is placed at a predetermined position on the pressure roll 6.
Even if 1 is wound, the desired portion cannot be accurately processed without aligning the positions of the pressure roll 6 and the body 2 to be coated. Therefore, in order to align the position of the object 2 to be coated with the pressure roll 6, the belt conveyor 15 which is a mechanism for feeding the object 2 to the pressure roll 6 and the driving mechanism of the pressure roll 6 are mechanically or mechanically. It is configured to be electrically coupled and interlocked. In addition, it is desirable that the pressure roll 6 be independently finely rotated to finely adjust the initial position (start position).

In the present embodiment, a stopper mechanism is provided upstream of the pressure roll 6 to control the conveyance of the article to be coated 2 by moving the claw 23 up and down, and a detector is provided upstream of the stopper mechanism (claw 23). Is arranged, a mark printed at a predetermined position on the object to be coated 2 is detected by a detector, and the claw 23 of the stopper mechanism is controlled up and down based on a signal from the detector to convey the object 2 to be coated. To control. By controlling in this way, the object to be coated 2 can be sent out in accordance with the rotation of the pressure roller 6, so that the object to be coated 2 is pressed by the pressure roller 6
When passing between the receiving roll 7 and the receiving roll 7, a predetermined position of the composite plate sheet 21 is overlapped with a predetermined position of the coated surface, and in this state, the ultraviolet rays from the ultraviolet lamp 5 cause the pressure roll 6 and the composite plate sheet 21 to overlap. Since the ultraviolet curable resin coating material is cured by being transmitted and irradiated, the uneven portion of the composite plate sheet 21 is transferred to the coated surface.

More specifically, a part of the sheet (first
In the printing area 18a), the first part plate film 17a is overlapped to form a hologram, and in the other part (second printing area 18b), the second part plate film 17b is overlapped to form a glossy surface, and the rest is left. Part (third printing area 18c)
The base film 16 is overlapped on the surface to form a matte surface. Further, since the boundaries of the first part plate film 17a, the second part plate film 17b, and the base film 16 are clear, the boundaries of the first print region 18a, the second print region 18b, and the third print region 18c are clear. Appear in.

In the present embodiment, the article to be coated 2 that has passed between the pressure roll 6 and the receiving roll 7 is peeled off by the air flow blown from the nozzle provided as the peeling section 9 and collected in the collecting section. To be done. In the present invention, the object to be coated 2
Since the coated surface 2'of is not brought into direct contact with the surface of the pressure roll 6 made of glass or the like but is brought into contact with the base film 16 or the part plate film 17, it has excellent releasability, but is peeled off by applying external force. It is desirable to provide a peeling portion 9 that causes the peeling.

As described above, in this embodiment, after passing through the coating section and once coated with the ultraviolet curable resin coating material, the base film 16 to which the first and second part plate films 17a and 17b are adhered is wound. By simply passing between the pressure roll 6 and the receiving roll 7, the uneven portion 20 (hologram) as the plate portion of the first part plate film 17a and the mirror surface (gloss processing) as the plate portion of the second part plate film 17b. It is possible to simultaneously perform three types of surface processing, that is, the unevenness 19 (mat) as the plate portion of the base film 16, and the marginal phenomenon does not occur. Then, the base film 16 and the part plate film 17 are appropriately selected according to the plate portion to be processed, and the film is cut into a desired shape and then attached, whereby a desired surface gloss processing is performed on a desired portion. Can be given.

The base film 16 may be a film whose plate portion has a mirror surface, and the part plate film 17 may be a film having an uneven portion as the plate portion, or the uneven portion may be formed as the plate portion. Select the base film 16,
A base film 16 and a part plate film 17 are appropriately selected depending on the plate part, such as selecting a film formed with a pattern part having a pattern or pattern different from the uneven part of the base film 16 as the plate part film 17. Thus, many kinds of processing can be performed at once.

In the embodiment described above, the base film 16
Although the part plate film 17 was adhered to the surface of the present invention, the present invention is not limited to this, and the part plate film 17 is made of an ultraviolet transmitting material within the range of the base film 16 into a desired shape smaller than the base film 16. Any configuration may be adopted as long as the cut part plate film 17 is arranged and the plate part formed on the surface of the base film 16 is different from the plate part formed on the surface of the part plate film 17.

For example, as shown in FIG. 7, the base film 16 is cut out in accordance with the shape and size of the part plate film 17, and the part plate film 17 is placed in the cutout hole 24 so that the surface of the base film 16 is cut. The surface of the part plate film 17 may be made flush. When the cutout hole 24 is opened, the part plate film 17 is formed on the film used as the base film.
By overlapping the films used as, and cutting in this state to form the part plate film 17 into a desired shape, it is possible to accurately cut out the cutout holes 24 having the same shape and the same size. And these films 1
In order to mount 6, 17 on the outer peripheral surface of the pressure roll 6, an adhesive may be used to attach them, or a film having an adhesive layer formed on the back surface may be used. You may fix by adhesive force.

Since the films 16 and 17 shown in FIG. 7 are separated when they are separated from the pressure roll 6, the films 16 and 17 are attached to the base film 25 as shown in FIG. However, when the base film 25 is attached to the pressure roll 6, both end portions of the back surface of the base film 25 may be adhered with an adhesive agent, or may be fixed by the adhesive force of the adhesive layers on both end portions of the back surface of the base film 25.

[0031]

As described above, according to the present invention, in the apparatus according to claim 1, even if the pressure roll is made of an ultraviolet permeable material such as glass, the base film is provided on the outer peripheral surface. Since it is detachably attached and used, the peeling property of the object to be coated is improved, and the peeling trouble of the object to be coated can be eliminated. Further, the outer peripheral surface of the pressure roll is less likely to be soiled, does not require frequent cleaning, and is easy to maintain. Further, within the range of the base film wound around the outer peripheral surface of the pressure roll, the appropriately selected part plate film is cut and arranged in a desired shape, and the plate portion and the part plate film formed on the surface of the base film. Since the plate portion formed on the surface of is different, a plurality of types of surface processing can be performed by one processing, and the boundary of different processing is clear, so clear processing can be performed. Further, since a surface processor can make a film to be a plate by himself, it is suitable for processing a large number of small quantities. Furthermore, since the film used as a plate only needs to be wound around a pressure roll, it is much shorter than the conventional paper surface processing device that uses a long film endlessly. It can be reduced, and the film does not expand and contract easily, and alignment is easy.

According to the second aspect of the present invention, a plate film capable of performing a plurality of types of surface processing can be easily produced by simply sticking the part plate film on the surface of the base film.

According to a third aspect of the present invention, the base film is cut out in accordance with the shape and size of the part plate film, and the part plate film is placed in the cutout holes to form the surface of the base film and the surface of the part plate film. Since the surface is made flush, there is no step between the transferred portion of the plate portion of the base film and the transferred portion of the plate portion of the part plate film. Therefore, it will be more beautiful. Therefore, since the amount of the film used is small and the surface has an uneven portion different from the uneven portion, it is possible to transfer a plurality of types of unevenness at the same time.

[Brief description of drawings]

FIG. 1 is a front view showing a schematic configuration of a paper surface processing apparatus.

FIG. 2 is a front view showing a schematic configuration of a coating unit.

3A is a plan view of the object to be coated, and FIG. 3B is a front view of the object to be coated shown in FIG.

FIG. 4 is a front view showing a schematic configuration of a surface pressure curing section.

FIG. 5 is a plan view of an object to be coated showing different processing ranges.

6A is a plan view of a base film having a part plate film attached thereto, and FIG. 6B is a front view of the base film and the part plate film shown in FIG.

7A is a plan view of an embodiment in which a base film and a part plate film are flush with each other, and FIG. 7B is a front view of the film shown in FIG. 7A.

FIG. 8A is a plan view of an example in which a base film and a part plate film are adhered flush with each other on a base film;
(B) is a front view of the film shown in (A).

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Paper surface processing apparatus 2 Coating object 2'Coating surface 3 Supply section 4 Coating section 5 Ultraviolet irradiation machine 6 Pressure roll 7 Receiving roll 8 Surface pressure curing section 9 Peeling section 10 Coating plate plate 11 Paint supply roll 12 Plate roll 13 Backup roll 14 Feed roll 15 Belt conveyor 16 Base film 17 Part plate film 18 Printing area 19 Matte uneven part 20 Holographic uneven part 21 Composite plate sheet with part plate film attached to base film 22 Fastening groove 23 Claw 24 Cutout Hole 25 basic film

Claims (3)

[Claims] 1. A supply unit for supplying an object to be coated such as paper, a coating unit for applying an ultraviolet curable resin coating on one surface of the object to be coated, and an ultraviolet irradiator made of an ultraviolet transparent material. A surface pressure curing unit that has a pressure roll and a receiving roll that have a built-in pressure roller, and that presses the coating surface of the object to be coated applied by the coating unit to the pressure roll side to adhere and cure it. In the paper processing apparatus, the pressure roll is replaceably attached to the outer peripheral surface of a base film made of an ultraviolet transmitting material, and is made of an ultraviolet transmitting material within the range of the base film. Addition of a part plate film cut into a desired shape smaller than the base film, and the plate part formed on the surface of the base film and the plate part formed on the surface of the part plate film are made different from each other. Apparatus. 2. The paper surface processing apparatus according to claim 1, wherein a part plate film is attached to the surface of the base film. 3. A base film is cut out according to the shape and size of the part plate film, and the part plate film is arranged in the cutout hole so that the surface of the base film and the surface of the part plate film are flush with each other. The paper surface processing apparatus according to claim 1, which is characterized in that.