JPH11302873A - Multistage letterpress, bladed letterpress and production of multistage letterpress - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily produce a multistage letterpress for forming relief patterns at a low cost by forming resist films in correspondence to forming patterns of projecting parts in order of higher height on a steel-base plate and subjecting the resist films to etching, thereby successively forming a plurality of projecting parts varying in the heights. SOLUTION: A photosensitive resist 22 is formed on the steel plate 21 having a smooth surface and a negative film 23 having transparent parts corresponding to the forming patterns of the highest projecting parts is disposed thereon and is exposed from above, by which the photosensitive resist 22 is developed and the resist films 24 corresponding to the forming patterns of the projecting parts are obtd. The surface formed with the resist films 24 is etched to a prescribed depth and thereafter, the photosensitive resist 25 is formed thereon and a negative film 26 having the light transmitting parts corresponding to the forming patterns of the next higher projecting parts is disposed and is exposed and developed, by which the resist films 27 corresponding to the next higher projecting parts are formed. The resist films are then subjected to etching of a prescribed depth. Finally, the resist films 24 and the resist films 27 are peeled and removed from the steel plate 21. The multistage projecting parts having the projecting parts of the different heights are thus obtd.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a multi-step relief plate used for forming a plurality of embossed patterns having different heights on a sheet-like object, a method for forming an embossed pattern while molding a sheet-like object. The present invention relates to a method for producing a relief plate with a blade used for cutting and the like, and a method for producing a plate with a multi-step blade used for molding, for example, a multilayer sheet-like material in a different pattern for each layer.

[0002]

2. Description of the Related Art As a method of giving an embossed pattern to a sheet-like object, there is a method of pressing a relief plate having a convex portion formed in a predetermined pattern shape against the sheet-like object. It is manufactured by etching or the like.

[0003] Further, when cutting out a desired shape such as a label or a seal from a sheet-like material, a very microscopic shape is generally required as a punching blade, and it is difficult to manufacture by engraving. In many cases, a die (die) in which a cutting blade is formed is used.

[0004]

However, when a plurality of embossed patterns having different heights are provided to a sheet-like material, conventionally, each of the embossed patterns has a convex portion having a height corresponding thereto. It has been common practice to prepare a plurality of letterpress plates and to give raised patterns of each height in separate steps.
For this reason, the cost of manufacturing the relief printing plate and providing the raised pattern is increased, and if a displacement occurs in the process of providing the raised pattern, a desired raised pattern cannot be obtained, and the label is used or sold as a seal or the like. In some cases, it was not possible.

In the case where an embossed pattern is applied to a sheet-like material and punched out as a label or a seal, a relief plate for imparting the embossed pattern and a punching die for punching are conventionally manufactured separately. And the punching step need to be performed in separate steps. For this reason, as described above, the manufacturing cost is increased, and if the positioning is not accurately performed in the embossed pattern providing step and the punching step, there is a case where the two parts are displaced from each other and cannot be used or sold as a label or a seal. Was.

In the case of embossing a portion that has been stamped with gold foil or silver foil, it is common practice to separately manufacture a foil stamping plate and a floating publishing and perform the foil stamping process and the embossing process in separate processes. Met. For this reason, similarly to the above, costs for the production of the plate and the step of providing the raised pattern have been increased.

Further, when a plurality of embossed patterns having different heights are provided on a sheet-like material and punched out as a label or a seal, the production cost of the relief plate and the die used for this becomes enormous. The step of providing the pattern and the step of punching are also extremely complicated.

In view of the above circumstances, the present invention makes it possible to form a plurality of embossed patterns of different heights on a sheet-like object and to form an embossed pattern using gold foil, silver foil, or the like at low cost and extremely easily. Multi-stage reliefs, blade-shaped reliefs that can form a sheet-like object and form an embossed pattern very easily at low cost, and, for example, mold a multi-layer sheet-like object with a different pattern for each layer. It is an object of the present invention to provide a method for producing a plate with a multi-step blade, which is capable of performing such operations.

[0009]

The configuration of the present invention which has been achieved to achieve the above object is as follows.

That is, a first aspect of the present invention is a method for manufacturing a multi-step relief printing plate having a plurality of convex portions having different heights, wherein a resist film corresponding to the highest convex portion forming pattern is formed on a steel substrate. A step of etching the steel substrate, subsequently forming a resist film corresponding to the pattern of the next highest convex portion, and sequentially etching the steel substrate.

A second aspect of the present invention is a method for manufacturing a multi-step relief plate having a plurality of convex portions having different heights, wherein a resist film corresponding to a pattern of all the convex portions is formed on a steel substrate. A step of removing the resist film corresponding to the formation pattern in the order of convex portions having a lower height and sequentially etching the steel substrate after etching the steel substrate. It is in.

According to the first and second manufacturing methods of the present invention, a multi-stage relief plate capable of simultaneously forming a plurality of embossed patterns having different heights on a sheet-like object, and an embossed pattern (characters) made of gold foil, silver foil or the like. ) Can be easily formed at low cost in a series of steps.

A third aspect of the present invention is a method for manufacturing a relief plate with a blade having a blade and a convex portion inside the blade, comprising forming a resist film corresponding to a pattern of the blade on a steel substrate. A method of manufacturing a relief plate with a blade, characterized in that after etching the steel substrate, a resist film corresponding to a pattern for forming a convex portion is formed and the steel substrate is etched.

In the third manufacturing method of the present invention, in the case where a plurality of convex portions having different heights are formed as the convex portions, a resist film corresponding to a formation pattern of the convex portions is formed and the steel film is formed. As an operation of etching the substrate, a resist film corresponding to the highest protruding portion forming pattern is formed, the steel substrate is etched, and then a resist film corresponding to the next highest protruding portion forming pattern is formed. The operation of etching the steel substrate can be sequentially performed.

A fourth aspect of the present invention is a method for producing a relief plate with a blade having a blade and a convex portion inside thereof, wherein a resist film corresponding to the pattern of the blade and the convex portion is formed on a steel substrate. After forming and etching the steel substrate, there is provided a method for manufacturing a relief plate with a blade, characterized in that the resist film in a portion corresponding to a pattern for forming a projection is peeled off and the steel substrate is etched.

In the fourth manufacturing method of the present invention, in the case where a plurality of convex portions having different heights are formed as the convex portions, the resist film at a portion corresponding to the pattern for forming the convex portions is removed. As an operation of etching the steel substrate, an operation of removing the resist film in a portion corresponding to the formed pattern and sequentially etching the steel substrate can be performed in the order of the projections having the lower height.

A fifth aspect of the present invention is a method for manufacturing a relief plate with a blade having a blade and a convex portion on the inside thereof, wherein a resist film corresponding to the pattern for forming the blade is formed on a steel substrate. In addition, there is provided a method for manufacturing a relief plate with a blade, characterized in that a resist film wider than the resist film for forming the extraction blade is formed in accordance with a pattern for forming the protrusions and the steel substrate is etched.

According to the third to fifth manufacturing methods of the present invention, a relief plate with a blade capable of simultaneously forming a sheet and forming an embossed pattern can be formed in a series of steps very easily. Can be manufactured at cost.

A sixth aspect of the present invention is a method of manufacturing a plate with a multi-step blade having a plurality of blades having different heights, wherein a resist film corresponding to the highest pattern for forming a blade is formed on a steel substrate. Forming a steel substrate, etching the steel substrate, and then sequentially forming a resist film corresponding to the next higher extraction blade formation pattern and etching the steel substrate. In the way.

According to the sixth manufacturing method of the present invention, for example, a plate with a multi-step blade capable of forming a multilayer sheet-like material in a different pattern for each layer can be extremely easily formed in a series of steps. It can be manufactured at low cost.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The manufacturing method of the present invention will be described below with reference to the drawings.

FIG. 1 schematically shows an example of a multi-step relief plate manufactured by the present invention. FIG. 1 (a) is a plan view, and FIG. It is A 'sectional drawing.

As shown in FIG. 1, the multi-step relief printing plate 10 comprises:
The protrusions 11 and 12 have different heights (the protrusion 11 is higher than the protrusion 12 in this example).

In the first embodiment of the present invention, the multi-stage relief 1
0 is manufactured, for example, according to the process shown in FIG.
Hereinafter, the outline will be described in the order of steps.

Step (a) A photosensitive resist 22 is formed on a steel plate 21 whose surface has been sufficiently cleaned with a cleaning agent and the like and whose surface has been smoothed by mechanical polishing or the like (FIG. 2A). As the steel plate 21, for example, a steel plate suitable for etching treatment, such as hardened steel, mild steel, or stainless steel, can be used. Also,
At this time, it is preferable to form a photosensitive resist not only on the top surface of the steel plate 21 but also on the bottom surface for corrosion prevention.

Step (b) Next, on the photosensitive resist 22, a negative film 23 having a light-transmitting portion corresponding to the pattern of the projections 11 is provided (FIG. 2B).

Step (c) Next, after exposing from above the negative film 23, it is developed with a dedicated developer for the photosensitive resist 22 to obtain a resist film 24 corresponding to the formation pattern of the projections 11 (FIG. 2).
(C)). The width of the resist film 24 is appropriately set according to the height and width of the projection 11 to be formed.

Step (d) Next, the surface of the steel plate 21 on which the resist film 24 is formed is subjected to an etching treatment. At this time, the projection 11 to be formed and the projection 1
Etching is performed at a depth corresponding to the height difference of FIG.
(D)).

Step (e) Next, a photosensitive resist 25 is formed (FIG. 2E).

Step (f) Next, on the photosensitive resist 25, a negative film 26 having a light-transmitting portion corresponding to the pattern of forming the projections 12 is provided (FIG. 2 (f)).

Step (g) Next, after exposure from above the negative film 26, the photosensitive film 25 is developed with a dedicated developing solution to obtain a resist film 27 corresponding to the formation pattern of the projections 12 (FIG. 2).
(G)). The width of the resist film 27 is appropriately set according to the height and width of the projection 12 to be formed.

Step (h) Next, the surface of the steel plate 21 on which the resist film 24 and the resist film 27 are formed is subjected to etching. At this time, etching is performed at a depth corresponding to the height of the projection 12 to be formed (FIG. 2H).

Finally, the resist film 24 and the resist film 2
7 is peeled off from the steel plate 21 to form a convex portion 11 having a desired pattern and a desired height and width as shown in FIG.
And the multi-stage relief printing plate 10 having the projections 12. After the resist film is peeled and removed, finish etching may be performed to smoothly finish the upper ends of the protrusions 11 and 12.

As described above, according to the first aspect of the present invention, a plurality of convex portions having different heights can be formed on a steel plate by a series of steps. If such a multi-step letterpress is used, it is possible to simultaneously form a plurality of raised patterns having different heights on a sheet-like material.

In the above example, the height of the projections is two steps. However, if the height is larger than this, a resist film corresponding to the highest projection formation pattern is formed on the steel plate. Then, an operation of etching the steel sheet by a predetermined amount, then forming a resist film corresponding to the pattern for forming the next higher convex portion, and etching the steel sheet by a predetermined amount may be sequentially performed. Specifically, for example, when the height of the convex portion is three steps, the first etching process performs etching at a depth corresponding to the height difference between the highest convex portion and the second highest convex portion. In the second etching process, etching is performed at a depth corresponding to the height difference between the second highest projection and the third highest projection,
In the third etching process, etching may be performed at a depth corresponding to the height of the third highest projection.

In the second embodiment of the present invention, the multi-stage relief 1
0 is manufactured, for example, according to a process as shown in FIG.
Hereinafter, the outline will be described in the order of steps.

Step (a) A photosensitive resist 32 is formed on a steel sheet 31 whose surface has been sufficiently cleaned with a cleaning agent or the like and whose surface has been smoothed by mechanical polishing or the like (FIG. 3A).

Step (b) Next, on the photosensitive resist 32, a negative film 33 having a light-transmitting portion corresponding to the pattern of the projections 11 is provided (FIG. 3B).

Step (c) Next, after exposure from above the negative film 33, the photosensitive film 32 is developed with a dedicated developing solution to obtain a resist film 34 corresponding to the pattern of the projections 11 (FIG. 3).
(C)). The width of the resist film 34 is appropriately set depending on the height and width of the projection 11 to be formed.

Step (d) Next, a photosensitive resist 35 is formed (FIG. 3D).

Step (e) Next, on the photosensitive resist 35, a negative film 36 having an opening corresponding to the pattern for forming the projections 11 and 12 is provided (FIG. 3E).

Step (f) Next, after exposing from above the negative film 36, the photosensitive film 35 is developed with a dedicated developing solution to form a resist film 37 corresponding to the pattern of the convex portions 11 and 12. (FIG. 3F). The width of the resist film 37 is appropriately set depending on the height and width of the projection 12 to be formed.

Step (g) Next, an etching process is performed on the surface of the steel plate 31 on which the resist film 34 and the resist film 37 are formed. At this time, etching is performed at a depth corresponding to the height of the projection 12 to be formed (FIG. 3G).

Step (h) Next, the resist film 37 is peeled and removed (FIG. 3 (h)).
At this time, by forming the resist film 34 and the resist film 37 as alkaline and acidic films, respectively, only the upper resist film 37 can be easily removed. For example, when the resist film 34 is made of an alkaline film and the resist film 37 is made of an acidic film, only the upper resist film 37 can be peeled off by using a stripping solution corresponding to the acidic film.

Step (i) Next, the surface of the steel plate 31 on which the resist film 34 is formed is subjected to an etching treatment. At this time, the projection 11 to be formed and the projection 1
Etching is performed at a depth corresponding to the height difference of FIG.
(I)).

Finally, the resist film 34 is peeled off from the steel plate 31 to obtain the multi-step relief plate 10 having the convex portions 11 and the convex portions 12 having a desired pattern, height and width as shown in FIG. Can be After the resist film is peeled off, finish etching for smooth finishing particularly the upper end of the convex portion 11 can be performed.

As described above, also in the second embodiment of the present invention,
Similar to the first aspect of the present invention, a plurality of convex portions having different heights can be formed on a steel plate by a series of steps.

In the above example, the height of the projections is two steps. However, if the height is larger than this, a resist film corresponding to the pattern of all the projections is formed on the steel plate. After the steel plate is etched by a predetermined amount, the resist film in the portion corresponding to the lowest convex portion forming pattern is peeled off, the steel plate is etched by a predetermined amount, and then the resist film corresponding to the next lowest convex forming pattern is peeled off Then, the operation of etching the steel sheet by a predetermined amount may be sequentially performed.

Specifically, for example, when the height of the convex portion is three steps, three portions of an alkaline / acidic / alkaline resist film are formed from the lower layer on the portion corresponding to the highest convex portion.
An acidic / alkali two-layer resist film is formed from a lower layer on a portion corresponding to the second highest convex portion, and an alkaline resist is formed on a portion corresponding to the lowest convex portion. Then, after performing etching at a depth corresponding to the height of the lowest convex portion as the first etching process, the alkaline resist film on the upper layer of each convex portion is peeled off. Next, as a second etching process, after etching is performed at a depth corresponding to the difference between the height of the second highest projection and the lowest projection, the upper acidic resist film is removed. Finally, as a third etching process, after etching is performed at a depth corresponding to the difference between the height of the highest convex portion and the second highest convex portion, the remaining alkaline resist film may be removed.

In the multi-stage relief plate 10 described above, the projections having different heights are separated and independent from each other. However, the method of manufacturing the multi-stage relief plate according to the present invention is not limited to this. Can be formed in a continuous state. One example will be briefly described with reference to FIG. 4. A photosensitive resist 42 is formed on a steel plate 41.
(A)), a negative film 43 having a light-transmitting portion corresponding to the formation pattern of the higher convex portion is disposed on the photosensitive resist 42 (FIG. 4 (b)). A resist film 44 corresponding to the formation pattern of the convex portion of FIG.
(C)), the steel plate 41 is etched by a predetermined amount (FIG. 4)
(D)) Further, a photosensitive resist 45 is formed (FIG. 4).
(E)), on the photosensitive resist 45, a negative film 46 having a light transmitting portion corresponding to the formation pattern of all the convex portions is provided (FIG. 4 (f)). A resist film 47 is obtained in a state where the resist film 47 is continued from FIG.
(G)), the steel plate 41 is etched by a predetermined amount (FIG. 4)
(H)) Finally, the resist films 44 and 47 are peeled and removed from the steel plate 41 to obtain a desired pattern and height.
The multi-stage relief 40 having the continuous projections 48 and 49 having a width is obtained (FIG. 4 (i)).

FIG. 5 schematically shows an example of a relief plate with a blade manufactured by the present invention. FIG. 5 (a) is a plan view, and FIG. 5 (b) is a plan view of FIG. 5 (a). FIG. 14 is a sectional view taken along the line B-B '. As shown in FIG.
1 and a protruding portion 52 surrounded by the protruding portion 52. The extraction blade 51 is formed higher than the protruding portion 52.

In the third embodiment of the present invention, the relief printing plate 50 with the blade is manufactured, for example, according to a process as shown in FIG. Hereinafter, the outline will be described in the order of steps.

Step (a) A photosensitive resist 62 is formed on a steel plate 61 whose surface has been sufficiently cleaned with a cleaning agent and the like and whose surface has been smoothed by mechanical polishing or the like (FIG. 6A).

Step (b) Next, on the photosensitive resist 62, a negative film 63 having a light-transmitting portion corresponding to the pattern of the extraction blade 51 is provided (FIG. 6B).

Step (c) Next, after exposing from above the negative film 63, the photosensitive resist 62 is developed with a dedicated developer to obtain a resist film 64 corresponding to the formation pattern of the extraction blade 51 (FIG. 6).
(C)). The width of the resist film 64 is appropriately set depending on the height of the extraction blade 51 to be formed.

Step (d) Next, the surface of the steel plate 61 on which the resist film 64 is formed is subjected to an etching treatment. At this time, the extraction blade 51 to be formed and the projection 5
Etching is performed at a depth corresponding to the height difference of FIG.
(D)).

Step (e) Next, a photosensitive resist 65 is formed (FIG. 6E).

Step (f) Next, on the photosensitive resist 65, a negative film 66 having a light-transmitting portion corresponding to the formation pattern of the convex portion 52 is provided (FIG. 6 (f)).

Step (g) Next, after exposure from above the negative film 66, the photosensitive film is developed with a dedicated developer for the photosensitive resist 65 to obtain a resist film 67 corresponding to the pattern of the projections 52 (FIG. 6).
(G)). The width of the resist film 67 is appropriately set depending on the height and width of the projection 52 to be formed.

Step (h) Next, an etching process is performed on the surface of the steel plate 51 on which the resist film 64 and the resist film 67 are formed. At this time, etching is performed at a depth corresponding to the height of the projection 52 to be formed (FIG. 6H).

Finally, the resist film 64 and the resist film 6
By peeling and removing 7 from the steel plate 61, an extraction blade 51 having a desired pattern and height as shown in FIG. 5 and a bladed plate 50 having a projection 52 having a desired pattern and height and width as shown in FIG. can get. After the resist film 67 is peeled and removed, finish etching for smooth finishing of the upper end of the projection 52 may be performed.

As described above, according to the third aspect of the present invention, the extraction blade and the projection can be formed on the steel plate by a series of steps. Then, by using such a relief plate with blades, it is possible to simultaneously form a sheet-like object and form a relief pattern.

In the above example, the height of the convex portion is one step. However, in the case of two or more steps, a resist film corresponding to the pattern of forming the convex portion is formed to form the steel substrate. The above-described first method of the present invention can be applied as an operation for etching.

A case where the first aspect of the present invention is applied to the third aspect of the present invention to produce, for example, a relief plate with a blade having a two-step height of projections will be briefly described with reference to FIGS. 7 and 8. A photosensitive resist 72 is formed on the photosensitive resist 71 (FIG. 7A), and a negative film 73 having a light-transmitting portion corresponding to a pattern for forming a cutting edge is disposed on the photosensitive resist 72 (FIG. 7 (A)). b)),
After the exposure, development is performed to obtain a resist film 74 corresponding to the pattern of the extraction blade (FIG. 7C), the steel plate 71 is etched by a predetermined amount (FIG. 7D), and a photosensitive resist 75 is formed (FIG. 7D). 7 (e)), a negative film 76 having a light-transmitting portion corresponding to the formation pattern of the higher convex portion is disposed on the photosensitive resist 75 (FIG. 7 (f)). The resist film 77 corresponding to the formation pattern of the one convex portion is obtained (FIG. 8G), and the steel plate 71 is etched by a predetermined amount (FIG. 8G).
(H)) Further, a photosensitive resist 78 is formed (FIG. 8).
(I)), a negative film 79 having a light-transmitting portion corresponding to the formation pattern of the lower convex portion is provided on the photosensitive resist 78 (FIG. 8 (j)), and developed after exposure to a lower film. The resist film 80 corresponding to the formation pattern of the convex portion of FIG.
(K)), the steel plate 71 is etched by a predetermined amount (FIG. 8)
(L)) Finally, the resist film 74, 77, 80 is peeled off from the steel plate 71 to remove the blade 81 having the desired pattern and height, and the desired pattern and height.
A blade-shaped relief plate 70 having convex portions 82 and 83 having a width is obtained.

In the fourth embodiment of the present invention, the relief printing plate 50 with a blade (see FIG. 5) is manufactured, for example, according to a process as shown in FIG. Hereinafter, the outline will be described in the order of steps.

Step (a) A photosensitive resist 92 is formed on a steel plate 91 whose surface has been sufficiently cleaned with a cleaning agent or the like and whose surface has been smoothed by mechanical polishing or the like (FIG. 9A).

Step (b) Next, on the photosensitive resist 92, a negative film 93 having a light transmitting portion corresponding to the formation pattern of the extraction blade 51 is provided (FIG. 9B).

Step (c) Next, after exposing from above the negative film 93, it is developed with a dedicated developer for the photosensitive resist 92 to obtain a resist film 94 corresponding to the formation pattern of the extraction blade 51 (FIG. 9).
(C)). The width of the resist film 94 is appropriately set according to the height of the extraction blade 51 to be formed.

Step (d) Next, a photosensitive resist 95 is formed (FIG. 9D).

Step (e) Next, on the photosensitive resist 95, a negative film 96 having an opening corresponding to the pattern for forming the extraction blade 51 and the projection 52 is provided (FIG. 9E).

Step (f) Next, after exposing from above the negative film 96, the photosensitive film is developed with a dedicated developer for the photosensitive resist 95, and the resist film 97 corresponding to the formation pattern of the extraction blade 51 and the projection 52 is formed. (FIG. 9F). The width of the resist film 97 is appropriately set depending on the height and width of the projection 52 to be formed.

Step (g) Next, the surface of the steel plate 91 on which the resist film 94 and the resist film 97 are formed is subjected to etching. At this time, etching is performed at a depth corresponding to the height of the projection 52 to be formed (FIG. 9G).

Step (h) Next, the resist film 97 is peeled and removed (FIG. 9 (h)).
The details at this time are the same as those in the step (h) in FIG.

Step (i) Next, an etching process is performed on the surface of the steel plate 91 on which the resist film 94 has been formed. At this time, the extraction blade 51 to be formed and the projection 5
Etching is performed at a depth corresponding to the height difference of FIG.
(I)).

Finally, the resist film 94 is peeled off from the steel plate 91 to remove the blade 51 having a desired pattern and height as shown in FIG. 5 and a convex portion having a desired pattern and height and width as shown in FIG. Thus, a relief printing plate 50 having a blade 52 is obtained.

As described above, in the fourth embodiment of the present invention,
Similarly to the third aspect of the present invention, the extraction blade and the projection can be formed on the steel plate by a series of steps.

In the above-described example, the height of the projections is one step. However, in the case of two or more steps, the resist film corresponding to the formation pattern of the projections is peeled off to remove the steel. As the operation for etching the substrate, the above-described second method of the present invention can be applied.

In the third and fourth methods of the present invention described above,
It is possible to simultaneously form the protrusion and the higher extraction blade, but if the height of the extraction blade may be the same as the height of the protrusion, the process is simpler than described below. The fifth method of the present invention can be used.

In the fifth embodiment of the present invention, the relief plate with blade is manufactured, for example, according to a process as shown in FIG. Hereinafter, the outline will be described in the order of steps.

Step (a) A photosensitive resist 102 is formed on a steel plate 101 whose surface has been sufficiently cleaned with a cleaning agent and the like and whose surface has been smoothed by mechanical polishing or the like (FIG. 10A).

Step (b) Next, on the photosensitive resist 102, a negative film 10 having a light-transmitting portion corresponding to the pattern for forming the cutting blade and the convex portion.
3 (FIG. 10B).

Step (c) Next, after exposure from above the negative film 103, the photosensitive film 102 is developed with a special developing solution to form a resist film 104 corresponding to the pattern for forming the blade and a pattern for forming the convex portion. A corresponding resist film 105 is obtained (FIG. 10
(C)). The width of the resist films 104 and 105 is
The resist film 1 is appropriately set according to the width and height of the extraction blade and the projection to be formed, and corresponds to the formation pattern of the projection.
05 is the resist film 1 corresponding to the pattern of forming the extraction blade
It is formed wider than 04.

Step (d) Next, the surface of the steel plate 101 on which the resist films 104 and 105 are formed is subjected to an etching treatment. At this time, etching is performed at a depth corresponding to the height of the extraction blade and the projection to be formed (FIG. 10D).

Finally, the resist films 104 and 105 are peeled and removed from the steel plate 101, so that an extraction blade 106 having a desired pattern and height and a blade 107 having a convex portion 107 having a desired pattern and height and width are provided. Letterpress 100
Is obtained. After peeling and removing the resist film 105, finish etching for smoothly finishing the upper end of the projection 107 can be performed.

As described above, according to the fifth aspect of the present invention, the extraction blade and the projection having substantially the same height can be formed on the steel plate by an extremely simple process. Accordingly, it is possible to simultaneously perform the molding of the sheet material and the formation of the embossed pattern.

Next, a sixth aspect of the present invention relating to a method for manufacturing a plate with a multi-stage blade having a plurality of extraction blades having different heights will be described.
In the sixth embodiment of the present invention, the multi-step blade plate is, for example, as shown in FIG.
It is manufactured according to the steps as shown in FIG. Hereinafter, the outline will be described in the order of steps.

Step (a) A photosensitive resist 112 is formed on a steel sheet 111 whose surface has been sufficiently cleaned with a cleaning agent or the like and whose surface has been smoothed by mechanical polishing or the like (FIG. 11A).

Step (b) Next, on the photosensitive resist 112, a negative film 11 having a light-transmitting portion corresponding to the formation pattern of the higher extraction blade
3 is provided (FIG. 11B).

Step (c) Next, after exposure from above the negative film 113, the photosensitive film is developed with a dedicated developer for the photosensitive resist 112 to obtain a resist film 114 corresponding to the pattern for forming the higher cutting blade (FIG. 1
1 (c)). The width of the resist film 114 is appropriately set according to the height of the extraction blade to be formed.

Step (d) Next, the surface of the steel plate 111 on which the resist film 114 is formed is subjected to an etching treatment. At this time, etching is performed at a depth corresponding to the difference in height between the extraction blades having different heights (FIG.
(D)).

Step (e) Next, a photosensitive resist 115 is formed (FIG. 11).
(E)).

Step (f) Next, on the photosensitive resist 115, a negative film 116 having a light-transmitting portion corresponding to the pattern for forming the lower extraction blade is disposed (FIG. 11F). ).

Step (g) Next, after exposure from above the negative film 116, the photosensitive film 115 is developed with a dedicated developing solution to form a resist film 117 corresponding to a pattern for forming a lower cutting edge. (FIG. 11 (g)). The width of the resist film 117 is appropriately set depending on the height of the cutting blade to be formed.

Step (h) Next, the resist film 114 and the resist film 1
An etching process is performed on the surface on which 17 is formed. At this time, etching is performed at a depth corresponding to the height of the lower extraction blade (FIG. 11 (h)).

Finally, the resist film 114 and the resist film 117 are peeled off from the steel plate 111 to obtain the multi-step blade plate 110 having the cutting blades 118 and 119 having a desired pattern and height.

As described above, according to the sixth aspect of the present invention, a plurality of extraction blades having different heights can be formed on a steel plate by a series of steps. Then, by using such a multi-stage blade-equipped plate, for example, it is possible to simultaneously mold a multi-layered sheet-like material in a different pattern for each layer.

In the above-mentioned example, the height of the cutting blade is two steps. However, if the height is larger than this, a resist film corresponding to the highest forming pattern of the cutting blade is formed on the steel plate. Then, an operation of etching the steel sheet by a predetermined amount, forming a resist film corresponding to the next higher pattern of forming the extraction blade, and then etching the steel sheet by a predetermined amount may be sequentially performed.

Next, a description will be given of a multistage relief plate (embossed foil stamping plate) which can be suitably used when forming an embossed pattern (character) by using a gold foil or a silver foil on a sheet-like material.

Such an embossed foil stamping plate can be extremely easily manufactured in a series of steps by using the above-described method for manufacturing a multistage relief printing plate according to the present invention, and an example thereof will be briefly described with reference to FIG.

A photosensitive resist 122 is formed on a steel plate 121 (FIG. 12A), and a transparent portion corresponding to a pattern of a convex portion 128 having an outline of a raised pattern is formed on the photosensitive resist 122. A negative film 123 is provided (FIG. 12B), developed after exposure, and a resist film 124 corresponding to the pattern of forming the convex portion 128 is obtained (FIG. 12).
(C)).

Next, a photosensitive resist 125 is formed (FIG. 12D), and a light-transmitting portion corresponding to an embossed pattern (ie, a region surrounded by the convex portion 128) is formed on the photosensitive resist 125. (FIG. 12 (e)), and after exposure, developed and developed a resist film 127.
(FIG. 12 (f)), and the steel plate 121 is etched by a predetermined amount (FIG. 12 (g)).

Next, the resist film 127 is peeled and removed (FIG. 12 (h)), and the steel plate 121 is etched by a predetermined amount (FIG. 1).
2 (i)) Finally, by removing and removing the resist film 124, the protrusion 128 corresponding to the contour of the raised pattern is obtained.
Area of a thickness d ₂ (d ₂ > d ₁ ) (projection 129)
12 is formed.
(J)).

The multi-step letterpress 12 produced as described above
0 means that the foil can be pressed by applying heat to the convex portions 128 and 129, and an embossed pattern of the foil can be provided at the inner convex portion 129.

[0104]

Embodiments of the present invention will be described below.

[Example 1] In this example, a two-step relief plate 10 as shown in FIG. 1 was manufactured by using the first manufacturing method of the present invention. This will be described in detail with reference to FIG. The following steps (a) to (h) correspond to (a) to (h) in FIG.

Step (a) Bentonite steel having a thickness of 0.45 mm was used as the steel plate 21 and the surface was mechanically polished to a roughness of # 100.
Was heated and maintained in the range of 85 to 95 ° C., and a photosensitive resist 22 (EPRR / manufactured by Tokyo Ohka Kogyo Co., Ltd.) was applied to a thickness of 7 to 10 μm.

Step (b) Next, a negative film 23 having a thickness of about 100 μm and having a light-transmitting portion corresponding to the formation pattern of the convex portion 11 to be formed is formed.
A vacuum contact was made on the upper surface of the photosensitive resist 22.

Step (c) From above the steel plate 21 on which the negative film 23 is stuck, use a step guide for measuring the amount of ultraviolet rays 13 to 1
After performing an ultraviolet vacuum exposure so that five steps emerge, the photosensitive resist 22 is developed with a dedicated developer (manufactured by Tokyo Ohka Kogyo Co., Ltd.), and a rinsing solution (Tokyo Ohka Kogyo Co., Ltd.) is used to reproduce a precise pattern. (Manufactured by Co., Ltd.). Next, ventilation drying (post-baking) at about 100 ° C. was performed for 20 to 30 minutes to protect the resist, and post-exposure was performed for the purpose of hardening treatment. The width of the resist film 24 corresponding to the formation pattern of the protrusions 11 formed as described above is 0.30
mm. The back surface of the steel plate 21 was coated with an adhesive transparent film to prevent corrosion.

Step (d) Next, an etching process was performed by spraying an etching solution from above the surface of the steel plate 21 on which the resist film 24 was formed. In this embodiment, the etching solution is a mixture of 40 liters of ferric chloride (42 ° Baume) and 500 cc of capal Fe (composed of thiourea and ammonium persulfate) at a temperature of 27 ° C. The injection pressure was set at 1.6 kg / cm ² and the injection amount was set at 190 l / min at 1.5 kg / cm ² . The distance from the tip of the injection nozzle to the etched surface of the steel plate was 230 mm, and 0.14 m corresponding to the difference in height between the projections 11 and 12 to be formed.
Etching was performed at a depth of m.

Step (e) Next, a photosensitive resist 25 (EPRR / manufactured by Tokyo Ohka Kogyo Co., Ltd.) was applied to a thickness of 7 to 10 μm.

Step (f) Next, a negative film 26 having a thickness of about 100 μm and having a light-transmitting portion corresponding to the formation pattern of the projection 12 to be formed is formed.
A vacuum contact was made on the upper surface of the photosensitive resist 25.

Step (g) Exposure and development were performed in the same manner as in step (c) to obtain a resist film 27 corresponding to the formation pattern of the projections 12. The width of the resist film 27 was 0.20 mm.

Step (h) In the same manner as in step (d), etching was performed at a depth of 0.14 mm corresponding to the height of the projection 12 to be formed.

Finally, the resist film was removed and removed, followed by finish etching, to obtain a two-step relief plate 10 having a convex portion 11 and a convex portion 12 having smooth curved upper end portions. The width of the projection 11 is 0.10 mm, and the height is 0.1 mm.
28 mm (the thickness is 0.45 mm), the width of the projection 12 is 0.10 mm, and the height is 0.14 mm (the thickness is 0.31 mm).
mm).

[Embodiment 2] In this embodiment, a relief plate 50 having a blade as shown in FIG. 5 is manufactured by using the fourth manufacturing method of the present invention.
Is manufactured, and the manufacturing process will be described below in detail with reference to FIG. In addition, the following steps (a) to (i)
This corresponds to (a) to (i) of FIG.

Step (a) Bentonite steel having a thickness of 0.45 mm was used as the steel plate 91, and the surface was mechanically polished to a roughness of # 100.
Was heated and maintained in the range of 85 to 95 ° C., and a photosensitive resist 22 (EPRR / manufactured by Tokyo Ohka Kogyo Co., Ltd.) was applied to a thickness of 7 to 10 μm.

Step (b) Next, a negative film 93 having a thickness of about 100 μm and having a light transmitting portion corresponding to the formation pattern of the extraction blade 51 to be formed is formed.
A vacuum contact was made on the upper surface of the photosensitive resist 92.

Step (c) From above the steel plate 91 on which the negative film 93 is stuck, use a step guide for measuring the amount of ultraviolet rays 13-1.
After performing an ultraviolet vacuum exposure so that five steps emerge, the photosensitive resist 92 is developed with a dedicated developer (manufactured by Tokyo Ohka Kogyo Co., Ltd.), and a rinsing solution (Tokyo Ohka Kogyo Co., Ltd.) is used to reproduce a precise pattern. (Manufactured by Co., Ltd.). Next, ventilation drying (post-baking) at about 100 ° C. was performed for 20 to 30 minutes to protect the resist, and post-exposure was performed for the purpose of hardening treatment. The width of the resist film 94 corresponding to the formation pattern of the extraction blade 51 formed as described above is 0.15.
mm.

Step (d) Next, a photosensitive resist 95 (EPRR / manufactured by Tokyo Ohka Kogyo Co., Ltd.) was applied to a thickness of 7 to 10 μm.

Step (e) Next, a negative film 96 having a thickness of about 100 μm having a light-transmitting portion corresponding to the pattern of the extraction blade 51 and the projection 52 to be formed is vacuum-adhered to the upper surface of the photosensitive resist 95. did.

Step (f) Exposure and development were performed in the same manner as in step (c) to obtain a resist film 97 corresponding to the pattern for forming the extraction blade 51 and the projection 52. The width of the resist film 97 is 0.5 mm at a portion corresponding to the extraction blade 51 and 1.5 m at a portion corresponding to the projection 52.
m. The back surface of the steel plate 91 was coated with an adhesive transparent film for corrosion prevention.

Step (g) Next, an etching process was performed by spraying an etching solution from above the surface of the steel plate 91 on which the resist films 94 and 97 were formed. In this embodiment, the etching solution is ferric chloride (4
Using a mixed solution obtained by mixing 500 cc of Capal Fe (composed of thiourea and ammonium persulfate) with 40 liters of 40 liters at a liquid temperature of 27 ° C., the injection pressure of the injection nozzle is 1.6 kg / cm ² , and the injection amount is It was set to 190 l / min at 1.5 kg / cm ² . The distance from the tip of the injection nozzle to the etched surface of the steel plate was 230 mm, and etching was performed at a depth of 0.14 mm corresponding to the height of the projection 52 to be formed.

Step (h) Next, the resist film 97 was peeled off from the steel plate 91 (FIG. 9 (h)).

Step (i) In the same manner as in step (g), the extraction blade 51 to be formed and the projection 5
Etching was performed at a depth of 0.14 mm corresponding to a height difference of 2.

Finally, the resist film 94 was peeled off to obtain a relief printing plate 50 having a blade 51 and a projection 52 as shown in FIG. The height of the extraction blade 51 is 0.28 mm (the thickness is 0.45 mm),
2 had a width of 1.41 mm and a height of 0.14 mm (thickness 0.31 mm).

[Embodiment 3] In this embodiment, an embossed foil stamping plate is manufactured, and its manufacturing process will be described in detail with reference to FIG. The following steps (a) to (j) correspond to (a) to (j) in FIG.

Step (a) Bentonite steel having a thickness of 0.45 mm was used as the steel sheet 121, and the surface was mechanically polished to a roughness of # 100.
A photosensitive resist 122 (EPRR / manufactured by Tokyo Ohka Kogyo Co., Ltd.) was applied so as to have a film thickness of 7 to 10 μm while heating and holding 21 in the range of 85 to 95 ° C.

Step (b) Next, a negative film 123 having a thickness of about 100 μm and having a light-transmitting portion corresponding to the pattern of the convex portion 128 serving as the contour of the raised pattern was vacuum-adhered to the upper surface of the photosensitive resist 122.

Step (c) From above the steel plate 121 on which the negative film 123 is stuck, use a step guide for measuring the amount of ultraviolet rays from 13 to 13.
After performing an ultraviolet vacuum exposure so as to come out in 15 steps, the photosensitive resist 122 is developed with a dedicated developer (manufactured by Tokyo Ohka Kogyo Co., Ltd.), and a rinsing solution (Tokyo Ohka Kogyo Co., Ltd.) is used to reproduce a precise pattern. (Manufactured by Co., Ltd.). Next, ventilation drying (post-baking) at about 100 ° C. was performed for 20 to 30 minutes to protect the resist, and post-exposure was performed for the purpose of hardening treatment. The convex portion 1 formed as described above
The width of the resist film 124 corresponding to the formation pattern of No. 28 was 0.25 mm. The back surface of the steel plate 21 was coated with an adhesive transparent film to prevent corrosion.

Step (d) Next, a photosensitive resist 125 (EPRR / manufactured by Tokyo Ohka Kogyo Co., Ltd.) was applied to a thickness of 7 to 10 μm.

Step (e) Next, a negative film 126 having a light-transmitting portion corresponding to an embossed pattern (a region surrounded by the protruding portion 128) is formed on the photosensitive resist 125. Vacuum adhered to the upper surface.

Step (f) Exposure and development were performed in the same manner as in step (c) to obtain a resist film 127 corresponding to the raised pattern.

Step (g) Next, an etching process was performed by spraying an etching solution from above the steel plate 121. In the present embodiment, the etching solution is a capal Fe (composed of thiourea and ammonium persulfate) 500 with respect to 40 l of ferric chloride (42 degrees Baume).
cc, using a liquid mixture mixed at a rate of 27 cc,
The injection pressure of the injection nozzle was set at 1.6 kg / cm ² , and the injection amount was set at 190 l / min at 1.5 kg / cm ² . The distance from the tip of the injection nozzle to the etched surface of the steel plate was 230 mm, and etching was performed at a depth of 0.11 mm.

Step (h) Next, the resist film 127 was peeled off.

Step (i) In the same manner as in step (g), etching was performed at a depth of 0.14 mm.

Step (j) By removing and removing the resist film 124, the thickness d ₂ = inside the convex portion 128 corresponding to the contour of the raised pattern
An embossed foil plate having a 0.31 mm area (projection 129) was obtained. Note that the thickness d of the region outside the convex portion 128
₁ was 0.2 mm.

The embossed foil stamping plate obtained as described above was used to give an embossed pattern of gold foil to the paper. Specifically, a pattern in which the gold foil is embossed in a region surrounded by the convex portion 128 (region of the convex portion 129) by overlaying the gold foil on the paper and pressing a heated embossing plate from above. Was formed.

[0138]

As described above, according to the present invention,
The following effects are obtained.

(1) According to the method for producing a multi-step letterpress of the present invention, a multi-step letterpress capable of simultaneously forming a plurality of embossed patterns having different heights on a sheet-like material can be produced very simply and at low cost in a series of steps. can do. By using such a multi-step letterpress, it is possible to eliminate the positional shift between the embossed patterns having different heights, which has occurred in the conventional embossed pattern applying step, and to provide a plurality of embossed patterns having different heights on the sheet-like material. Can be provided at low cost. Further, the present invention can be suitably applied to the production of an embossed foil stamping plate capable of simultaneously performing the foil stamping step and the embossing step.

(2) According to the method for manufacturing a relief plate with a blade of the present invention, a relief plate with a blade capable of simultaneously forming a sheet-like material and forming an embossed pattern can be extremely easily reduced in a series of steps. Can be manufactured at cost. By using such a relief plate with blades, it is possible to eliminate misalignment in the conventional sheet-shaped material molding step and the embossed pattern applying step, and to manufacture labels and seals with an embossed pattern at low cost. Becomes possible.

(3) According to the method for producing a plate with a multi-stage blade of the present invention, for example, a plate with a multi-stage blade capable of molding a multilayered sheet-like material in a different pattern for each layer is formed by a series of steps. Therefore, it can be manufactured very easily at low cost.

[Brief description of the drawings]

FIG. 1 is a schematic view showing an example of a multi-stage relief plate manufactured by the present invention.

FIG. 2 is a process chart showing an example of a method for producing a multistage relief printing plate of the present invention.

FIG. 3 is a process chart showing another example of the method for producing a multistage relief printing plate of the present invention.

FIG. 4 is a process chart showing another example of the method for producing a multistage relief printing plate of the present invention.

FIG. 5 is a schematic view showing an example of a relief plate with a blade manufactured by the present invention.

FIG. 6 is a process chart showing an example of a method for producing a relief printing plate with a blade according to the present invention.

FIG. 7 is a process chart showing another example of the method for producing a relief printing plate with a blade according to the present invention.

FIG. 8 is a process chart showing another example of the method for producing a relief printing plate with a blade according to the present invention.

FIG. 9 is a process chart showing another example of the method for producing a relief plate with blades of the present invention.

FIG. 10 is a process drawing showing another example of the method for producing a relief printing plate with a blade according to the present invention.

FIG. 11 is a process chart showing an example of a method for manufacturing a plate with a multi-stage blade of the present invention.

FIG. 12 is a process chart showing an example of a method for producing a raised foil stamping plate according to the present invention.

[Explanation of symbols]

10, 40 multi-stage letterpress 11, 12, 48, 49, 52, 82, 83, 107,
128,129 convex part 21,31,41,61,71,91,101,11
1,121 steel plate 22,25,32,35,42,45,62,65,7
2,75,78,92,95,102,112,11
5,122,125 Photosensitive resists 23,26,33,36,43,46,63,66,7
3,76,79,93,96,103,113,11
6,123,126 Negative film 24,27,34,37,44,47,64,67,7
4,77,80,94,97,104,105,11
4,117,124,127 resist film 50,70,100 relief plate with blade 51,81,106,118,119 extraction blade 110 plate with multi-stage blade 120 embossed foil stamping plate

Claims (8)

[Claims] 1. A method of manufacturing a multi-step relief printing plate having a plurality of convex portions having different heights, comprising forming a resist film corresponding to a highest convex portion forming pattern on a steel substrate and etching the steel substrate. And a step of forming a resist film corresponding to the next highest convex pattern and etching the steel substrate sequentially. 2. A method of manufacturing a multi-step relief printing plate having a plurality of convex portions having different heights, comprising forming a resist film corresponding to a pattern of forming all the convex portions on a steel substrate and etching the steel substrate. And removing the resist film in a portion corresponding to the formation pattern in the order of the lower convex portions, and sequentially performing an operation of etching the steel substrate. 3. A method for manufacturing a relief plate with a blade having a blade and a convex portion inside thereof, comprising: forming a resist film corresponding to a pattern for forming a blade on a steel substrate; and etching the steel substrate. Forming a resist film corresponding to the pattern of forming the projections and etching the steel substrate. 4. The method for manufacturing a relief printing plate with blades according to claim 3, wherein a resist film corresponding to a pattern for forming the projections is formed to form a plurality of projections having different heights as the projections. Then, as an operation of etching the steel substrate, a resist film corresponding to the highest protruding portion forming pattern is formed, the steel substrate is etched, and then a resist film corresponding to the next highest protruding portion forming pattern is formed. A method of manufacturing a relief plate with a blade, comprising sequentially performing operations of forming and etching the steel substrate. 5. A method for producing a relief plate with a blade having a blade and a protrusion on the inside thereof, comprising forming a resist film corresponding to a pattern of forming the blade and the protrusion on a steel substrate. A method for manufacturing a relief plate with blades, comprising: after etching, removing a resist film in a portion corresponding to a formation pattern of a projection, and etching the steel substrate. 6. The method of manufacturing a relief printing plate with blades according to claim 5, wherein a plurality of projections having different heights are formed as the projections, the resist film corresponding to a pattern in which the projections are formed. As an operation of peeling off and etching the steel substrate, a blade is characterized in that an operation of peeling off the resist film of a portion corresponding to the formation pattern in the order of convex portions having a lower height and etching the steel substrate is sequentially performed. Method of manufacturing letterpress. 7. A method for manufacturing a relief plate with a blade having a blade and a convex portion inside thereof, comprising: forming a resist film corresponding to a pattern for forming a blade on a steel substrate; Forming a resist film wider than the resist film for forming an extraction blade and etching the steel substrate. 8. A method of manufacturing a plate with a multi-stage blade having a plurality of blades having different heights, comprising: forming a resist film corresponding to the highest pattern of forming a blade on a steel substrate; A method for manufacturing a plate with a multi-step blade, characterized by sequentially performing an operation of etching, followed by forming a resist film corresponding to the next higher pattern of forming an extraction blade and etching the steel substrate.