JPH01206046A - Forming device for uneven pattern on platelike substrate - Google Patents

Abstract

PURPOSE:To enable an uneven pattern to be continuously formed, while resin layer is cured except the part covered with the uneven pattern and uncured resin is removed, by a method in which while a platelike substrate is transferred on a prescribed path, the shielding sheet with ionized radiation-shielding pattern is stuck to the substrate through the layer of ionized radiation curable resin, and ionized radiation is radiated through said shielding sheet. CONSTITUTION:A platelike substrate 1 is transferred by a conveyer 2, and the layer 13 of ionized radiation curable resin is formed on the platelike substrate 1 by a coating device 3. A shielding sheet 5 is stuck to the resin layer 13 by a press roll 9 so that air is not entrapped and a colorant layer 7 is brought in contact with the resin layer 13. The platelike substrate 1 passes the lower part of an ionized radiation-radiating device 10, and the resin layer 13 is irradiated with ionized radiation through the shielding sheet 5. Consequently, the part under a shielding pattern 8 is not cured, but the other part is cured and adheres to the substrate 1. A cutting device 11 cuts the shielding sheet 5 between the front and rear substrates 1, 1, and the substrate 1 is discharged in the state where the shielding sheet 5 is stuck to its surface. When the shielding sheet 5 is teared off, cured part remains on the substrate 1 and uncured part is removed.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to metal plates, inorganic plates, plastic plates, and wooden plates.

The present invention relates to a device that continuously forms an uneven pattern on a plate-shaped base material such as plywood.

[Conventional technology]

Conventionally, various types of board materials have been used as wall materials, ceiling materials, etc., and it is known that the surface of these board materials is provided with an uneven pattern to give a three-dimensional effect. Methods for adding this uneven pattern include forming an uneven pattern directly on the plate material by molding, etc., and preparing a sheet with an uneven pattern formed in advance.
There are ways to attach this to a board.

[Problem to be solved by the invention]

However, forming an uneven pattern directly on a plate material by molding or the like requires large-scale equipment and has problems in that productivity is poor. In addition, a special printing method is required to form the uneven pattern on the sheet.

It is difficult to form sharp bulges, and there are problems such as difficulty in attaching the sheet to a board material.

Furthermore, depending on the board material, it may be desirable to add color to a surface with an uneven pattern, but printing or painting to impart color to an uneven surface is extremely difficult; Painting method cannot be applied.

The present invention aims to solve such problems, and aims to provide an apparatus that can easily form an uneven pattern on the surface of a plate material, and can easily add color to the uneven pattern if necessary. shall be.

[Device for solving problems]

To achieve the above object, the present invention includes a conveyance device that conveys a plate-shaped base material to be patterned along a predetermined conveyance path,

(8) A coating device that applies an ionizing radiation-curable resin to the pattern-forming surface of the base material transported by the transportation device.

(b3 A shielding sheet with an ionizing radiation shielding pattern,
a sheet joining device for joining the ionizing radiation curable resin layer applied to the base material;

(C1: An apparatus for forming an uneven pattern on a plate-like substrate, characterized in that it is equipped with an ionizing radiation irradiation device that irradiates ionizing radiation from the transfer sheet side to the plate-like substrate conveyed by the conveying device. This is the summary.

Here, as the shielding sheet, a sheet cut to a predetermined length may be used, but it is easier to use a long sheet rolled into a roll because it is easier to supply it to the @-shaped substrate. Therefore, if necessary, a sheet peeling device for peeling off the shielding sheet from the base material may be provided downstream of the above-mentioned ionizing radiation irradiation device, and further downstream.

A coating device may be provided to apply a top coat resin to the uneven pattern forming surface of the base material.

Furthermore, in the above configuration, a coating device is provided for coating the pattern-forming surface of the base material with the ionizing radiation-curable resin.

Instead, a coating device is installed to apply ionizing radiation-curable resin to the shielding sheet before it is bonded to the plate-shaped base material, and the shielding sheet after the resin is applied is bonded with the resin-coated side facing the base material. It may also be configured to do so.

[Effect]

According to the apparatus of the present invention, a shielding sheet having an ionizing radiation shielding pattern is bonded to the surface of the plate-shaped base material through the ionizing radiation-curable resin layer while the plate-like base material is transported along a predetermined transport route by the transporting device. , ionizing radiation is irradiated from above. Therefore, in areas where there is no ionizing radiation shielding pattern, the ionizing radiation curable resin layer on the plate-like substrate is cured by ionizing radiation irradiation, but in areas where there is an ionizing radiation shielding pattern, the pattern blocks ionizing radiation. Therefore, the ionizing radiation-curable resin layer on the plate-like base material is not cured.

Thereafter, when the shielding sheet is peeled off, the cured resin remains on the base material, but the uncured resin is removed together with the shielding sheet, forming an uneven pattern on the surface of the base material. At this time, the boundaries of the concavo-convex pattern are determined by the shape of the ionizing radiation shielding pattern and are therefore made clear. In this way, a concavo-convex pattern with a clear outline is continuously formed on the plate-like base material.

Peeling off the shielding sheet after the ionizing radiation-curable resin has been thickened may be performed manually after the plate-shaped base material is discharged from the conveyance device, but it is possible to remove the shielding sheet manually after the plate-like base material is discharged from the conveyance device, but it is possible to remove the shielding sheet by providing a sheet peeling device in the middle of the conveyance device. , can be done inline. Furthermore,
By providing a top coat resin coating device downstream thereof, the top coat can be applied in-line to the surface on which the uneven pattern is formed.

Note that a transfer sheet having a colored layer on its releasable surface is used as the shielding sheet, and the colored layer is bonded so as to be in contact with the ionizing radiation-curable resin layer.

When this shielding sheet is peeled off, the colored layer is transferred to the cured resin portion, so that coloring can be imparted at the same time as unevenness is formed.

〔Example〕

The present invention will be described in detail below with reference to the drawings.

FIG. 1 is a schematic side view showing an uneven pattern forming apparatus according to a first embodiment of the present invention. In the figure, 1 is a plate-shaped base material on which an uneven pattern is to be formed, and 2 is a conveyor constituting a conveyance device that conveys this base material 1 along a predetermined conveyance path.

In the illustrated embodiment, a plurality of conveyors 2 are shown, but this could also be a single long conveyor;
This is a coating device that coats an ionizing radiation-curable resin onto the upper surface of a substrate 1 that has been conveyed by a machine, and in the illustrated embodiment, a roll coater is shown. The coating device 3 is not limited to the roll coater shown in FIG. 9, but any other device such as a curtain flow coater or a spray coater can be used. However, a roll coater is preferable because the coating amount can be easily controlled.

4 is a sheet feeding device that feeds out the shielding sheet 5 having an ionizing radiation shielding pattern, and holds a roll 5A formed by winding the long shielding sheet 5. As shown in FIG. 4, the shielding sheet 5 used here is T! A colored layer 7 is provided on an X-dispersion radiation transparent sheet 6, and an ionizing radiation shielding pattern 8 is further provided. Note that the ionizing radiation shielding pattern 8 may be formed on the opposite side of the sheet 6.

It may be provided between the sheet 6 and the colored layer 7.

Again, in FIG. 1, reference numeral 9 denotes a press roll constituting a sheet joining device for pressing and joining the shielding sheet 5 to the resin layer on the base material 1, and the air between the shielding sheet 5 and the resin layer is Prevents stiffness. Note that a squeegee or the like may be used instead of the press roll. Reference numeral 10 denotes an ionizing radiation irradiation device provided at a position for irradiating the ionizing radiation curable resin layer on the base material 1 conveyed by the conveyor 2. This irradiation device 1O is one that irradiates ionizing radiation capable of curing the ionizing radiation-curable resin depending on the ionizing radiation-curable resin used. Reference numeral 11 denotes a cutting device for cutting the shielding sheet 5 extending between 1° and 1 of the base materials 1 and 1. Note that instead of providing the cutting device 11.

An operator may manually cut the shielding sheet with a knife or the like.

Next, let's talk about the uneven pattern forming device having the above structure.

Let's explain its operation.

A plate-shaped base material 1 on which an uneven pattern is to be formed is fed onto the conveyor 2 at the left end in FIG. This feeding may be done manually by an operator or by using a suitable feeding device. The plate-shaped base material 1 supplied onto the conveyor 2 is conveyed rightward by the conveyor 2, and on the way there, an ionizing radiation-curable resin is applied to the upper surface by a coating device 3. As a result, an ionizing radiation-curable resin layer 13 (see FIG. 5) having a uniform thickness is formed on the plate-like base material l.

The thickness of the resin layer 13 applied here is 3 μm to 1 m.

Preferably it is 30 μm to 200 μm. Next, as the plate-like base material 1 is moved by the conveyor 2, this resin layer 13
A shielding sheet 5 is bonded thereon by a press roll 9 so that air is not drawn in and the colored layer is in contact with the resin layer 13. This state is the state shown in FIG.

Thereafter, the plate-like base material 1 with the shielding sheet 5 pasted thereon passes under the ionizing radiation irradiation device IO, and the resin layer 13 is irradiated with ionizing radiation through the shielding sheet 5 thereon. As a result, as shown in FIG. 6, the portion of the resin layer 13 below the shielding pattern 8 is not hardened, but the other portions of the resin layer are hardened and fixed to the base material 1. after that.

In FIG. 1, a cutting bag 211 cuts the shielding sheet 5 between the base materials 1 and 1, and separates the base materials 1.1,
The base material 1 is discharged with the shielding sheet 5 attached to its surface. The discharged base materials 1 are collected and stored manually or by a suitable discharge device. after that.

Peel off the shielding sheet 5 at an appropriate time. When this shielding sheet 5 is peeled off, as shown in FIG. 7, the hardened portion of the resin layer 13 remains fixed on the base material l, and the colored layer 7 is transferred to the upper surface. As a result, the uncured portion adheres to the shielding sheet 5 and is removed.

A concave portion in which a small amount of ionizing radiation-curable resin remains and a convex portion with a colored layer on the cured resin layer are formed. In addition.

If necessary, remove the uncured resin in the recesses or try again.

The uncured resin may be cured by irradiation with ionizing radiation.

In this way, an uneven pattern is formed on one surface by the cured resin.

And a colored product is obtained.

FIG. 2 shows another embodiment of the present invention, and in this embodiment, the ionizing radiation irradiation device 10 is different from the embodiment of FIG.
Eliminating the downstream cutting device 1, instead, as a sheet peeling device for peeling off the shielding sheet 5 from the base material 1,
A peeling roll 15 and a take-up roll 16 are provided.

Furthermore, a residual resin removing device 17 is provided downstream. The residual resin removal device 17 may be one that uses a chemical removal method in which a suitable solvent is applied to dissolve and remove the residual resin, or one that uses a physical removal method that uses a brush or cotton puffing roller, or one that uses a physical removal method that uses a brush or cotton puffing roller. In this embodiment, it is possible to use a combination of the following.

By winding up the shielding sheet 5 onto a winding roll 16.

The shielding sheet 5 can be automatically peeled off from the base material 1, and the uncured resin remaining in the recesses on the upper surface of the base material 1 can be automatically removed using the residual resin removal bag N17.

A product having the final shape shown in FIG. 8 can be obtained continuously. Note that, as described above, uncured resin is attached to the shielding sheet 5 that has been peeled off from the base material 1, but it is left as is.

You can wind it up on the take-up roll 16 and then discard it. If a large amount of uncured resin adheres and causes trouble when winding it up on the take-up roll 16,
As shown by the two-dot chain line in front of the take-up roll 16.

A doctor 18 and a resin receiver 19 may be provided to scrape off and collect the resin. Alternatively, instead of providing the doctor 18, an ionizing radiation irradiation device may be provided to harden the uncured resin adhering to the shielding sheet 5. It is also possible to wind it up on the take-up roll 16 in this state.

In the embodiment shown in FIG. 2, the residual resin removal device 17
Instead of providing this, an ionizing radiation irradiation device may be placed at that position to cure the uncured residual resin.

FIG. 3 shows still another embodiment of the present invention, which is different from the embodiment of FIG. 2 in that the shielding sheet i? II
A top coat resin coating device 20 and an ionizing radiation irradiation device 21 are further arranged downstream of the separating section.

The top coat resin application device 20 is for applying a resin to the surface of the base material 1 (the surface on which the uneven pattern is formed), and one drawing shows a curtain flow coater.
In addition, any coating device such as a roll coater or a spray coater may be used. However, according to this embodiment, the curtain flow coater shown in Figure 1 is preferable because it has the advantage of cleaning the coating surface.

After the shielding sheet 5 is peeled off from the base material 1 to form an uneven pattern, the IA radiation curable resin for top coat is uniformly applied to the uneven surface of the base material 1 using the coating device 20.

Next, it can be irradiated and cured by an ionizing radiation irradiation device 21, and as shown in FIG. 9, a base material 1 having a top coat layer 22 on its surface 9 can be manufactured in-line.

In the example shown in Fig. 3, an ionizing radiation-curable resin is applied as the top coat, but the resin used for the top coat is not limited to this, and any resin can be used. Needless to say, when another resin is used instead of the curable resin, a curing device suitable for the resin used should be used instead of the ionizing radiation irradiation device 21. However, the use of an ionizing radiation curable resin is advantageous because the residual resin from the previous unevenness formation can be simultaneously cured by irradiation with the ionizing radiation irradiation bag W21. If a resin other than ionizing radiation-curable resin is used, it is preferable to provide a residual resin removal device, a residual resin curing device, and a dispersing radiation irradiation device in front of the coating device 20.

In each of the embodiments shown in FIGS. 1 to 3 above, the ionizing radiation-curable resin is applied onto the base material 1 to a predetermined thickness.

After that, the shielding sheet 5 was bonded thereon, but instead of this, a device for applying an ionizing radiation curable resin to the shielding sheet 5 was provided, and after applying the resin to the shielding sheet 5, the It may be configured to be joined to the base material 1 with the surface facing the base material 1 side, or after applying the ionizing radiation curable resin to both the base material 1 and the shielding sheet.

Both may be joined.

Furthermore, in all of the above embodiments, the ionizing radiation curable resin is applied immediately after the base material 1 is fed onto the conveyor 2, but if necessary, the base material may be sealed or treated before that. Pretreatment may be performed in-line by providing a device that performs base treatment such as brimer treatment and treatment for improving adhesion. In addition, although it has been explained that the base material 1 is manually supplied to the conveyor 2, the base material 1 is fed one by one.
A base material supply device that automatically supplies the base material onto the conveyor 2 may also be used. Furthermore, the product discharging section may be provided with a product discharging device that picks up the products one by one and stacks them at a predetermined position, or a product stacking device that picks up and stacks the products sent out one after another. It is preferable to have a movable shelf in which a large number of movable shelves for storing products one by one are provided, since this will not damage the processed surface of the product.

Further, in the above embodiment, the shielding sheet 5 is provided with a transferable colored layer 7, and this colored layer 7 is transferred to the cured resin part, but the colored layer 7 is not necessarily essential to the present invention. may be omitted.

The plate-like base material 1 used in the present invention may be of any type, such as: (1) a plate or molded product of metal such as stainless steel, steel, aluminum, or copper; (2) glass, marble, or ceramic; (1) gypsum board; Asbestos cement board.

Calcium silicate board, GRC (glass fiber reinforced cement)
Inorganic plates or molded products such as ■Polyester.

Examples include boards or molded products made of organic polymers such as melamine, PVC, and diallyl phthalate, and wooden boards or molded products such as plywood and particle board.

The ionizing radiation-curable resin used to form irregularities on the base material 1 is mainly composed of polymers, oligomers, monomers, etc. that have radically polymerizable double bonds in their structure, and contains photopolymerization initiators and polymers. Two different grades containing a sensitizer and other additives, such as non-reactive polymers, organic solvents, waxes, etc., as required, are readily available on the market and can be used in the present invention. 'Ionizing radiation is typically ultraviolet rays and electron beams.

Others can also be used.

The ionizing radiation transparent sheet 6 forming the shielding sheet 5 is
When the ionizing radiation is ultraviolet rays, a sheet that has the property of transmitting ultraviolet rays, such as a polyester film, a polyamide (nylon) film, a polypropylene film, or a fluororesin film, is used. It is preferable that it does not contain.

When the ionizing radiation is an electron beam, there are no restrictions because the electron beam has high transparency, and the above-mentioned sheets that transmit ultraviolet rays can be used in principle.

In addition, it can also be used on a single piece of paper.

When the colored layer 7 for transfer is formed on the shielding sheet 5 as in the above embodiment, the sheet 6 transparent to ionizing radiation.

Since it is necessary to support the colored layer 7 in a transferable manner, at least the side supporting the colored layer needs to be removable.

If the sheet itself is releasable, it can be used as is; if it is not releasable, it can be used with a releasable layer provided, such as by applying a releasable resin or composition.

The thickness of the ionizing radiation vA transparent sheet 6 is 5 μm to 200 μm.
pm, preferably 25 μm-100, um.

The colored layer 7 is for forming a colored layer on the base material 1, and is formed using various paints or inks depending on the purpose. Since it is necessary to transmit ionizing radiation to cure the ionizing radiation-curable resin on the base material 1, it is transparent to ionizing radiation vA. When the ionizing radiation is ultraviolet rays, in order to ensure UV transmittance, it is better to avoid using too many pigments and fillers that interfere with UV VA transmittance.

It is preferable to color it with a dye or use a very small pigment with a particle size of 1 particle.

The colored layer 7 may be formed as a uniform colored layer (so-called solid layer) or may be provided in a pattern, and the pattern layer may be a printed layer of one color or a printed layer of two or more colors. good.

The ionizing radiation shielding pattern 8 is a mask pattern for forming an uneven pattern on the surface of the base material l. The material forming the ionizing radiation shielding pattern 8 is a material that reflects and shields ultraviolet rays when the ionizing radiation is ultraviolet rays.

For example, fillers such as titanium oxide, calcium sulfate, or calcium carbonate, or particles with a particle size of 0.3 μm-10 μm
Ink containing a pigment with a large hiding power on the order of m, UV absorbing substances 9 such as benzophenone-based, salicylate-based, benzotriazole-based, or acrylonitrile-based ultraviolet absorbers, and light-absorbing pigments.

These include carbon black, or ink containing a quencher (for example, metal complex salt type or hindered amine type) together with an inorganic substance.

Below, the results of actually forming a concavo-convex pattern using an apparatus according to an embodiment of the present invention will be explained.

Example ■ The apparatus of the example shown in Fig. 2 (provided with a flow coater as the resin coating device 3) was used, and as the shielding sheet 5, one with the structure shown in Fig. 4 and the following specifications was used. there was.

Shielding sheet specifications Base sheet 6: Polyester film 38 μm thick (manufactured by Toshi ■) Colored layer 7 Solid printing (gravure) with two-color pearl ink (manufactured by Moroboshi Ink ■) to a thickness of 3 μm after drying Shielding pattern 8; Ionization Print an abstract pattern (gravure) with radiation shielding ink (manufactured by Moroe Ink ■) As the plate-like base material 1, use a calcium silicate plate whose surface has been treated with an alkali sealer, and convey this to the conveyor 2.
was supplied to the left end of the On this calcium silicate plate 1, an ultraviolet curable paint (manufactured by Nippon Paint ■) was applied to a thickness of 100 μm using a flow coater as the application device 3. Next, a shielding sheet 5 was bonded to the coated surface. death,
Ionizing radiation irradiation device 10 (specifically output 13Qw/a
2 ozone-free ultraviolet lamps installed)
The ultraviolet rays were irradiated while passing at a speed of 0 m/min.

After irradiation! ! Wind up the cover receipt 5 with the take-up roll 16,
It was peeled off from the calcium silicate plate and was discharged as it was without operating the residual resin removal device W17.

By peeling off the shielding sheet 5, most of the ultraviolet curable paint adheres to the shielding sheet 5 and is removed in the portions of the shielding sheet 5 corresponding to the pattern printed with white ink, and the other portions are printed with colored pearl ink. The cured ultraviolet curable resin with the layer remained and nine colored convex patterns were formed, yielding a decorative calcium silicate board with an excellent appearance and colored according to the concavities and convexities.

After that, an ultraviolet curable paint was further applied to the colored uneven patterned surface by spray coating to a thickness of 5 μm.

This was irradiated and cured using the same ultraviolet irradiation device as described above to obtain a decorative calcium silicate plate with a -like top coat applied to one surface.

Example 2 The same shielding sheet 5 as in Example 1 was used, and the apparatus shown in FIG. 2 was further equipped with a device for roll-coating resin on the shielding sheet 5 fed out from the roll 5A. , a thickness of 5 on the treated surface of the calcium silicate plate treated with an alkali sealer and on the printed surface of the shielding sheet 5.
Ultraviolet curable paint (Nippon Paint■
Co., Ltd.) was roll coated. after that.

Using the press roll 9, the shielding sheet 5 and the calcium silicate plate 1 were stacked, and the same operation as in Example 1 was performed to obtain a temporary decorative calcium silicate having a colored uneven pattern.

Example 3 As in Example I, a calcium silicate plate whose surface had been treated with an alkali sealer was used as the plate-like base material 1, and this was supplied to the left end of the conveyor 2 of the apparatus shown in FIG. On this calcium silicate plate 1, an ultraviolet curable paint (manufactured by Nippon Paint ■) was applied to a thickness of 100 μm using a flow coater as the application device 3. Next, a shielding sheet 5 was bonded to the coated surface. death.

Ionizing radiation irradiation device 10 (specifically, output 80W/cm
20 ozone-free ultraviolet lamps installed)
The ultraviolet rays were irradiated while passing at a speed of m/min.

After irradiation, the shielding sheet 5 is wound up with a winding roll 16.

After peeling off the calcium silicate plate, methyl ethyl ketone was applied as a TG agent using the residual resin removal device 17, and the uncured ultraviolet curable paint remaining in the recesses was removed by puff polishing. As a result, a decorative calcium silicate board was obtained which had an excellent appearance with irregularities and colored convex portions, and excellent physical and chemical properties.

After that, an ultraviolet curable paint was further applied to the colored uneven patterned surface by spray coating to a thickness of 5 μm.

This was irradiated and cured using the same ultraviolet irradiation device as described above to obtain a decorative calcium silicate plate with a -like top coat applied to one surface.

〔Effect of the invention〕

As explained above, one aspect of the present invention is that while a plate-shaped substrate on which an uneven pattern is to be formed is conveyed along a predetermined route by a conveying device, an ionizing radiation-curable resin layer is placed thereon.
The structure is such that a shielding sheet having an ionizing radiation shielding pattern is bonded, and then the ionizing radiation curable resin layer is irradiated with ionizing radiation through the shielding sheet.

Only the portions of the resin layer other than those covered by the shielding pattern can be cured, and by peeling off this shielding sheet,
This method has the effect that an uneven pattern can be continuously formed by removing uncured resin.

Further, by providing a sheet peeling device for peeling off the shielding sheet in the base material conveyance path by the conveyance device, it is possible to perform in-line peeling of the shielding sheet.

- A concavo-convex pattern can be formed with high layer efficiency.

Furthermore, by providing a top coat resin coating device downstream of the sheet peeling device, the uneven pattern coated with the top coat layer can be continuously formed in-line.

Note that when a transfer sheet provided with a colored layer is used as the shielding sheet, the surface of the convex portions can be colored simultaneously with the formation of the concavo-convex pattern, and a two-colored concavo-convex pattern can be efficiently formed.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of an uneven pattern forming apparatus according to one embodiment of the present invention, and FIG. 2 is a schematic side view showing another embodiment. FIG. 3 is a schematic side view showing still another embodiment, FIG. 4 is an enlarged cross-sectional view of a part of the shielding sheet used in the above embodiment, and FIGS. 5 to 9 are the above embodiments. It is a sectional view explaining an uneven pattern formation effect in . 1-Plate base material, 2-・Conveyor, 3-Coating device, 4・-
- Sheet supply device, 5-shielding sheet), 6-ionizing radiation transparent sheet, 7--colored layer, 8-ionizing radiation shielding pattern. 9-Sheet joining device, 1 (1-Ionizing radiation irradiation device, 1
1-cutting device, 13... ionizing radiation curable resin layer, 1
5-Peeling roll, 16-Take-up roll, 17-Residual resin removal device, 20-) Resin coating device for spit coating,
21-Ionizing radiation irradiation device, 22-) Tubu coat layer. Agent Patent Attorney Kyo Matsu 322, To 2 Buko ■, t

Claims (4)

[Claims] (1) An apparatus for forming an uneven pattern on a plate-like base material, which includes a conveyance device that conveys a plate-like base material to be patterned along a predetermined conveyance route, and the following devices arranged along this conveyance route. (a) a coating device that applies an ionizing radiation-curable resin to the pattern-forming surface of the base material transported by the transport device; (b) a shielding sheet having an ionizing radiation shielding pattern applied to the base material; (c) an ionizing radiation irradiation device that irradiates ionizing radiation from the shielding sheet side to the plate-shaped substrate transported by the transport device; (2) A patent claim characterized in that the shielding sheet bonded to the base material is a long continuous sheet, and a sheet peeling device for peeling the shielding sheet from the base material is provided downstream of the ionizing radiation irradiation device. An apparatus for forming an uneven pattern on a plate-like substrate according to item 1. (3) A plate-shaped plate according to claim 2, further comprising a coating device that applies a top coat resin to the uneven pattern-forming surface of the base material downstream of the sheet peeling device. A device for forming uneven patterns on base materials. (4) a conveying device that conveys a plate-shaped substrate to be patterned along a predetermined conveying path; a sheet feeding device that feeds out a long shielding sheet having an ionizing radiation shielding pattern; and a sheet feeding device that feeds out a long shielding sheet having an ionizing radiation shielding pattern; a coating device that applies an ionizing radiation-curable resin to a shielding sheet, and a sheet joining device that joins the shielding sheet with its resin-coated surface facing the base material to a plate-shaped base material conveyed by the conveyance device. and an ionizing radiation irradiation device that irradiates ionizing radiation from the shielding sheet side to the plate-shaped substrate transported by the transport device.