JP6186667B1 - Gravure printing method, packaging material using film produced by the method, and nip impression cylinder provided with a perforation applying member used in the method and a self-adhesive layer cooperating therewith - Google Patents

Abstract

In gravure printing, a perforated film is printed on a film on which a pattern has been printed with a perforating member provided with a perforated blade and a nip impression cylinder provided with a self-adhesive layer in a subsequent printing unit that has performed printing of an arbitrary pattern. And a nip impression cylinder provided with a self-adhesive layer, and a packaging material. Printing is performed in a first stage between a perforation member provided with a perforation and a nip impression cylinder provided with a self-adhesive layer on the outer periphery using a printing unit at the latter stage after gravure printing by a gravure printing machine. A gravure printing method in which a perforation is imparted by a perforation imparting member in register with a printed pattern through a film, a perforation imparting member and a nip impression cylinder that can be used in this method, and a perforation imparted by this method It is an object to use the formed film as a packaging material. By using a perforation applying member provided with a perforated blade and a nip impression cylinder provided with a self-adhesive layer, the height of the perforated blade and the configuration of the self-adhesive layer can be devised in in-line processing. Perforation processing that matches the gravure printed material has become possible. [Selection] Figure 15

Description

  Perforation is often used to improve the openability of packaging materials. Perforations are also used for paper container products, but since they are not packaging materials that originally require sealing properties, perforations that penetrate the packaging materials are given. Soft packaging materials that use film are laminated by applying perforations to a part of the laminated film, especially stretched films such as nylon, polyester, and polypropylene, which are difficult to cut, because the function of sealing the contents is required. It is required to do. The present invention relates to imparting openability of a flexible packaging material.

  The openability of the flexible packaging material is devised by various methods. One of the methods is a method of perforating the laminated soft packaging material. Recently, there are also flexible packaging products that have perforations with laser light to improve the opening. However, as a general method, a perforation is physically made using a perforation blade. One of them is a method of providing a desired cutting part by passing a base film between a rotary die cutter provided with a cutting blade and an anvil roll, a method using an anvil roll provided with a cushion layer for protecting the cutting blade, etc. Has been proposed.

In addition, there is also a packaging material that can be opened from anywhere in the sealing portion of the soft packaging material by making a fine cut that penetrates in advance in the portion that becomes the sealing portion of the packaging product. As a method for making this fine cut, a method using a bladed roller and a receiving roller provided with an adhesive layer and further coated with a non-adhesive layer has been proposed.

  In addition, there have been proposals for methods and packaging forms for improving the openability of many soft packaging materials. Some of them are described in the prior art literature section.

JP-A-3-32598 JP-A-9-315444 JP 2000-108094 A JP 2001-18991 A JP 2001-287767 A JP 2002-255199 A JP 2005-162303 A JP2010-30691A

Using the latter printing unit, which performed gravure printing with a gravure printing machine, printing was performed in the former printing unit between the perforation providing member provided with the perforation and the nip impression cylinder provided with the self-adhesive layer on the outer periphery. A gravure printing method in which a perforation is imparted by a perforation applying member in registration with a printed pattern through a film, a perforation imparting member and a nip impression cylinder that can be used in this method, and a perforation is provided by this method. It is an object to use the used film as a packaging material.

The gravure printing method of the present invention uses a gravure printing machine in which a plurality of printing units for performing gravure printing are provided along a film conveyance path, prints an arbitrary pattern on the film, and is provided in a subsequent printing unit. The gravure printing plate is provided with an arbitrary perforation blade that is registered to the above-mentioned arbitrary pattern (hereinafter, the gravure printing plate provided with the perforation blade is generically referred to as a “ perforation imparting member ”). A nip impression cylinder is a pressure-sensitive adhesive (hereinafter referred to as a coated cloth) coated with a synthetic cloth on the surface side of the woven cloth and further coated with a non-silicone release agent. And the pressure-sensitive adhesive are collectively referred to as “self-adhesive layer”), and the nip pressure drum is wound around the outer periphery of the core material of the nip pressure drum, and includes the perforating member and the self-adhesive layer. Pressure Is between the through printed the film of the arbitrary picture, the printing of the arbitrary pattern, brought in register of the arbitrary pattern, and forming a perforation by the perforation blade.

In the gravure printing method described above, after further printing an arbitrary pattern, the film is transferred to a reversing device and reversed, and the registration of the arbitrary pattern is aligned, and the perforation blade is used from the non-printing surface side. and features that you form a perforated line.

  There are many gravure printing machines having 1 to 10 printing units. Since the present invention can give a perforation by using one printing unit, if the gravure printing machine has two printing units, a process for giving one printing unit for printing a pattern and a subsequent printing unit for giving a perforation. The present invention can be implemented if used for the above.

The gravure method of the present invention is shown in FIG. A gravure eight-color printing machine having eight printing units will be described as an example. The film (1) to be printed is fed from the paper feed unit (2) and conveyed along the conveyance path. First, after being transported to the tension controller (3), in the printing unit, the ink (5) stored in the ink pan (4) is applied to the gravure printing plate (7) by the finisher roll (6) to remove unnecessary ink. Is removed by a doctor (8), the film is conveyed and pressed between the gravure printing plate (7) and the nip impression cylinder (9), the ink is transferred to the film, and conveyed to a drying device (10), and is cooled by a cooling roller. After being cooled and conveyed in (11), gravure printing in the first unit is completed. Thus, the desired color ink is used from the first unit to the seventh unit, and a desired picture can be printed.

Next, the eighth unit shown in FIG. 1 performs perforation, but the difference from the printing unit up to the previous stage is that the ink pan (4), ink (5), finisher roll (6), doctor (8) In the previous unit, a gravure printing plate (7) and a nip impression cylinder (9) were provided, but in the eighth unit, a perforation applying member (12) provided with a perforation blade. And a nip impression cylinder (13) in which a self-adhesive layer is wound around the outer periphery of the core material of the nip impression cylinder, and hot air is not blown to the drying device (10). Further, the film is conveyed and wound up by the paper discharge unit (14), and printing is completed.

  Moreover, in the gravure printing method of the present invention, after further printing an arbitrary pattern, the film can be conveyed to a reversing device and reversed.

Thereby, it can be used safely for packaging materials in which invisible ink powder or the like is problematic.

  In the case of the gravure printing method, if the reversing device is not used, the perforation is made with the perforated blade from the printing surface side. After the gravure printing of the pattern, the printing film is conveyed to the reversing device (15). -If it is transferred to the 8th unit via, the perforation can be made with the perforated blade from the non-printing surface side.

In this way, if a pattern is printed on a film printed with ink, the pattern is aligned with the pattern, and a perforation is applied to the printed pattern with the printing unit in the subsequent stage, so that perforation can be processed inline with gravure printing. It can be done. In the present invention, the perforation imparting member provided with the perforation blade shown in FIG. 1 and the nip impression cylinder having a self-adhesive layer are different from ordinary gravure printing, and this point will be described in detail. To go.

The pressure contact force between the gravure printing plate, which is a printing unit of the gravure printing machine, and the nip impression cylinder is generally 400 kg to 1000 kg. Even when the printing unit of the present invention is used, perforation is performed by applying pressure with a perforation applying member provided with a perforation blade and a nip impression cylinder having a self-adhesive layer.

Therefore, it is completely different from the one that uses a rotary die cutter and an anvil roll, manages the gap between the blade edge of the die cutter and the anvil roll, and performs perforation without pressing them together.

The perforation imparting member for imparting a perforation used in the gravure printing method of the present invention requires not only the management of the blade edge but also a smooth state other than the blade portion. Therefore, the perforation imparting member that imparts the perforations needs to be in the same smooth state as gravure printing that prints the color ink except for the periphery of the perforation blades that impart the perforations.

On the other hand, when manufacturing a rotary die cutter, the cutting edge is cut out from a roll in a perfect circle and smooth with a lathe or the like. Unlike the polishing method, the unevenness is large and is completely different from the perforation imparting member used in the gravure printing method of the present invention.

A perforation imparting member having a perforation can be prepared by two methods, and the perforation imparting member of either method can be used in the gravure printing method of the present invention.

Perforations applying member provided with perforations blade is first aspect of the present invention has the cutting edge of the sewing machine blade is provided at a position on the circumference of the perforation imparting member, perforations imparting member both sides of the perforation blades provided by cutting along the member table surface is a stepped portion, the periphery of the perforation blade provided in the center of the step portion is deeper groove than the step portion is provided.

The perforation imparting member used in the gravure printing method of the present invention is a gravure printing machine in which a plurality of printing units for performing gravure printing are provided along a film conveyance path, instead of a gravure printing plate. A cylindrical perforation imparting member provided, wherein the perforation blade of the perforation imparting member is a flat surface provided on the circumference where the cutting edge of the perforation blade is located on the circumference of the perforation imparting member. The perforated blade projecting from the stepped portion, and further, grooves deeper than the stepped portion are machined and formed between both sides of the perforated blade and between the cutting edge of the perforated blade. To do.

The perforation imparting member according to claim 3, wherein the perforation blade is formed by electric discharge machining, cutting, or hand-carving along the axial direction of the perforation imparting member or in a direction inclined from the axial direction. It is characterized by being.

In the above two paragraphs, the features of the perforation imparting member which is the first form of the present invention are described. The perforation imparting member provided with the perforation blade having this feature, and the nip provided with the self-adhesive layer The film is pressed against the impression cylinder to give perforations in the in-line process. If there are grooves around the perforation blades, the self-adhesive layer is pushed through the film to strengthen the perforation blades. by pressing the film, the perforations of the incoming, it is possible to easily and stably.

The perforation means that the cutting edge of the perforation blade penetrates the film and easily breaks the film along the perforation. If this film is used as a packaging material, it can provide an opening function along perforations.

A perforation imparting member provided with a perforation blade, which is a first form of the present invention, will be described with reference to the drawings.

2 to 4 are views showing examples of the perforation imparting member according to claims 3 to 4 . The figure shows a perforated blade (20), a perforated blade edge (21), a groove (22) around the perforated blade, and a step (23). In FIG. 4, there is no step portion (23), but the step portion (23) is 0 mm. As can be seen from the comparison of the figures, the width of the groove (22) around the perforation edge increases as the height of the perforation edge (22) decreases from the step (23). This has the same effect as adjusting the height from the stepped portion to the perforated blade edge because the self-adhesive layer on the surface of the nip impression cylinder is easily pushed into the groove. The self-adhesive layer on the nip impression cylinder surface will be described later.

FIG. 5 and FIG. 6 show dimensional relationship diagrams constituting the perforation blade provided in the perforation applying member . FIG. 5 is a cross-sectional view of the perforation imparting member , and FIG. 6 is an enlarged perspective view of the dimensional relationship of the perforation blade portion. In FIG. 6, the stepped portion (23) is indicated by a broken line. Next, FIGS. 5 and 6 will be described.

The perforation imparting member provided with an arbitrary perforation blade is provided around the perforation blade (20) with the dimension (A) of the stepped portion (23) provided on both sides of the perforation blade being 0 mm to 20 mm. The width (B) of the groove (22) is from 0,2 mm to 2,5 mm, the depth (C) is within 1,5 mm, and the cutting edge length (D) of the perforated blades provided continuously is 0. 25 mm to 1.5 mm, the interval (E) between the grooves (24) provided between the cutting edges is from 0.2 mm to 1 mm, the width (G) of the perforated blade is within 1 mm, and the height (H) is 1.5 mm. The actual blade height (I) from the stepped portion (23) to the blade tip (21) excluding the groove depth is 0 mm to 0.4 mm.

Although the depth to the deepest part of the groove | channel provided between perforation blades was shown in the figure by (F), (F) is an approximation with (H).
(If the step portion has a slight inclination toward the groove, the groove is 20 mm if the inclination is regarded as the R portion, but the slight inclination is 0 with respect to the step portion 10 mm. If it is within 5 mm, this was regarded as a stepped portion.)

The sewing blade configured as described above is characterized in that a perforation cut is provided in the film when the self-adhesive layer provided in the nip impression cylinder is pushed into the groove (24) through the film.

In the present invention, the <groove> is defined as “when the R portion is provided at the edge of the stepped portion located in the vicinity of the perforation, the R portion is lower than the stepped portion. The other side is the perforated edge portion located at the height of the stepped portion corresponding to both ends of the perforated edge. "

A second embodiment of the present invention, perforations applying member provided with perforations blade, the cutting edge of the perforation blade from a position on the circumference of the circle on or members table surface of the perforations providing member are those provided in high, both sides of the perforation blade provided along the member table surface perforations applying member is the stepped portions, the embedding portion provided at the center of the step portion, the sewing machine to prepare in advance A plate-like blade on which the edge is formed is embedded, and a groove deeper than the step is provided around the perforated edge.

The perforation imparting member used in the gravure printing method of the present invention is a gravure printing machine in which a plurality of printing units for performing gravure printing are provided along the film transport path, instead of a gravure printing plate. A cylindrical perforation imparting member provided, wherein a stepped portion is provided on a surface of the perforation imparting member, an embedding portion for embedding a perforation blade is formed in the stepped portion, and a perforation blade is formed in the embedding portion. Further, a groove deeper than the step portion is formed between both sides of the perforated blade and between the blade edge of the perforated blade.

Further, in the perforation imparting member, the cutting edge of the perforation blade on the circumference of the perforation applying member, or wherein there perforation imparting member is formed to a position beyond the circle circumference .

In the above two paragraphs, the features of the perforation imparting member according to the second aspect of the present invention are described. The perforation imparting member provided with the perforation blade having this feature, and the nip provided with the self-adhesive layer The film is pressed against the impression cylinder to give perforations in the in-line process. If there are grooves around the perforation blades, the self-adhesive layer is pushed through the film to strengthen the perforation blades. By pressing against the film, perforations can be made easier.

A perforation imparting member provided with a perforation blade, which is a second embodiment of the present invention, will be described with reference to the drawings.

7 to 9 are views showing examples of the perforation imparting member according to claims 5 and 6 . The figure shows a perforated blade (20), a perforated blade edge (21), a groove (22) around the perforated blade, and a step (23). In Figure 9, but there is no step portion (23), the stepped portion (23) and 0 mm, a diagram obtained when a cutting edge of the sewing machine blade higher than a position on the circumference of the member table surface. As will be understood from comparison of the figures, the width of the groove (23) becomes wider as the height of the perforated cutting edge (22) decreases from the step (23). This has the same effect as adjusting the height of the perforated blades because the self-adhesive layer on the surface of the nip impression cylinder is easily pushed into the groove. The self-adhesive layer on the nip impression cylinder surface will be described later.

FIG. 10 and FIG. 11 show dimensional relationship diagrams constituting the perforation blade provided in the perforation applying member . FIG. 10 is a cross-sectional view of the perforation imparting member , and FIG. 11 is a perspective view of a part of the perforation blade of the plate-like perforation blade. Next, FIGS. 10 and 11 will be described.

In the perforation imparting member provided with an arbitrary perforation blade, first, the overall size of the plate-like perforation blade (34) on which the perforation blade prepared in advance is formed is such that the thickness (G) is from 0.6 mm to 1, 5mm, height (J) from 10mm to 30mm, the height (K) of the cut blade part is from 1.0mm to 3,0mm, the length can be arbitrarily selected, and a perforated blade is provided on one side It has been. The perforation blade has a cutting edge length (D) of 0.25 mm to 1,5 mm, and an interval (E) between grooves (24) provided between the cutting edges of 0.2 to 1 mm. A plate-like perforated blade (34) provided with a blade having a groove depth (H) of 0.2 mm to 1 mm provided between the blade tips may be embedded in the embedded portion. The dimension of the blade in the embedded state is the dimension (A) of the stepped portion (23) provided on both sides of the perforated blade (20), and is provided around the perforated blade (20). The width (B) of the groove (22) is from 0,2 mm to 2,5 mm, the depth (C) is within 3,0 mm, and the actual width of the cutting edge (21) from the stepped portion (23) excluding the groove depth. The blade height (I) is 0 mm to 0.5 mm. Further, the allowance (L) when the perforation blade is put out on the circumference of the perforation imparting member is set to be within 0.5 mm. The case where the perforated cutting edge protrudes in a circumferential shape is indicated by a broken line in FIG.
(If the step portion has a slight inclination toward the groove, the groove is 20 mm if the inclination is regarded as the R portion, but the slight inclination is 0 with respect to the step portion 10 mm. If it is within 5 mm, this was regarded as a stepped portion.)

The sewing blade configured as described above is characterized in that a perforation cut is provided in the film when the self-adhesive layer provided in the nip impression cylinder is pushed into the groove (24) through the film.

In the present invention, as the definition of <groove>. “When the R portion is provided at the edge of the step portion located in the vicinity of the perforation, the R portion is lower than the step portion, so the edge of the R portion is one of the grooves and the other is the step corresponding to both ends of the perforation blade. The part of the perforated blade located at the part height. "

The perforation imparting member according to any one of claims 3 to 6 , wherein the perforation blades are disposed intermittently over the entire width of the perforation imparting member or partially.

The perforation imparting member used in the gravure printing method of the present invention can be provided on a pattern film subjected to gravure printing with a perforation having an arbitrary shape.

Figure 14 Figure 12, which shows a perforation blade provided on the perforations providing member of the present invention, FIG. 12, perforations are provided in a linear in the width direction on the member table surface (25) FIG, 13, FIG perforations of the quadratic curve provided in the member circumferentially (26), FIG. 14, etc. FIG perforations cubic curve provided in any shape on the member table surface (27) The perforation can be freely selected and used as a perforation imparting member .

FIG. 15 shows a cross-section and an enlarged perspective view of the portion O shown in FIG. 12 which is the perforation imparting member of the present invention.

In the case where the perforation blade is disposed in the axial direction of the perforation imparting member , the width of the stepped portion and the depth of the stepped portion from the circumference do not vibrate the perforation imparting member. The perforation imparting member according to any one of claims 3 to 7 , which is set in a range of 0.5 mm or less .

In printing using the perforation imparting member of the present invention, in order to provide the perforation blade in a range where vibration is not applied to the perforation imparting member, it is necessary to devise not to provide many straight blades in the width direction of the member . For example, in FIG. 12, if the perforation is arranged as shown in FIG. 16, the perforation applying member and the nip impression cylinder can be prevented from being vibrated.

Further, in the perforation imparting member of the present invention, the length from the step portion to the outer periphery of the member and the width of the groove provided around the perforation blade are points when providing the perforation, as described above. The first cut that the perforation is given to the film is the two edges of the perforation blade, and if the perforation blade penetrates either edge or both edges, the cutting edge (cut) is It propagates throughout the perforation of the film and forms a perforation.

Therefore, by finishing both ends of the perforation blades at an acute angle, when the perforation is provided, the step portion of the perforation imparting member is shortened and the groove width is reduced, so that the nip impression cylinder is not vibrated. Can do.

  FIG. 17 shows an example of a processing portion at both ends of the blade tip that facilitates perforation. This method sharpens the edge angle of both ends of the perforated edge and cannot be machined, but the finish of the edge is performed by a skilled worker. It is easy. Furthermore, also in the c version of Example 1, an example of processing of both ends of the cutting edge for facilitating another perforation is shown.

In the gravure printing method of the present invention, the perforation imparting member provided with the perforation blade is described. However, in order to impart a perforation using the printing unit with the perforation imparting member , it is also important for the nip impression cylinder. There are points.

The nip impression cylinder provided with the self-adhesive used in the gravure printing method of the present invention has a coated cloth in which a synthetic resin is coated on the surface side of the woven cloth and a non-silicone release agent is coated, Two or more self-adhesive layers formed with an adhesive layer attached to the back side are wound around the outer periphery of the core material of the nip impression cylinder.

  First of all, the layer formed on the surface of the nip impression cylinder needs to be a self-adhesive layer. In order to form a layer even during cutting, the layer needs to be self-adhesive. The outer circumference of the core material of the nip impression cylinder through a coated cloth coated with a synthetic resin on the surface side of the woven cloth and further coated with a non-silicone release agent, and an adhesive attached to the back side of the coated cloth In the case of the nip impression cylinder wound around the woven fabric, even if the woven fabric is cut by the perforated blade, the layer configuration is changed by mixing with the adhesive layer, but the cut pieces of the woven fabric are not scattered. However, if the layer is not self-adhesive, the cushion layer wound around the outer periphery of the core of the nip impression cylinder does not have self-adhesion, so the resilience and cushioning properties are lost as the printing progresses. By being cut finely, the film adheres to the film and is subjected to gravure printing, so that a printed matter having a perforation cannot be obtained.

Regarding the layer thickness of the self-adhesive layer, the perforated blade needs to have a thickness of 0.5 mm or more in consideration of the actual blade height and the thickness at which the self-adhesive layer is pushed into the groove around the blade. If a self-adhesive layer of 0,6 mm or more is formed in one layer and the coated cloth with the synthetic resin coated on the surface side of the woven cloth is thickened, the cut pieces of the coated cloth will not be mixed with the adhesive. Cut pieces are scattered. If the pressure-sensitive adhesive layer is thickened, the pressure-sensitive adhesive is easily deformed into the perforated blade peripheral shape by the pressure contact between the perforation applying member and the nip impression cylinder, and the pressure-sensitive adhesive layer at the blade edge becomes thin, and the pressure on the blade edge is reduced. It can also be expected that the cutting edge will hit the core of the nip impression cylinder. Therefore, in order to avoid these problems in the self-adhesive layer, to form a layer even in cutting, and to maintain the self-adhesiveness in the layer, a synthetic resin is coated on the surface side of the woven fabric, and further, a non-silicon type release layer is provided. The thickness of the self-adhesive layer of the pressure-sensitive adhesive provided on the back side of the coated cloth is changed from 0,2 mm to 0.4 mm, and the self-adhesive layer is laminated in two or more layers. The self-adhesive layer may be formed with a total thickness in the range of 0.4 mm to 1.6 mm.

It should be noted that the thickness ratio of the coated fabric coated with a synthetic resin on the surface side of the woven fabric and further coated with a non-silicone release agent and the adhesive attached to the back side of the coated fabric is 7: 3 to 3 It may be in the range of 7 to 7 and is preferably formed at a ratio in the range of 6: 4 to 4: 6.

  The packaging material of the present invention is manufactured by the gravure printing method of the present invention, and a gravure printed material having an arbitrary pattern printed on the film and an appropriate perforation is manufactured on the film. In addition, a base film having tearability or a base film to which tearability is imparted and a film having sealability are laminated.

  The lamination method and characteristics of the film are described in detail in the examples.

  The packaging material of the present invention is not only functionally easy to open along the perforation, but also has a perforation process that imparts unsealing capability, with a gravure printing machine, simultaneously with gravure printing of a pattern, It is possible to shorten the manufacturing time, and the gravure printing machine can give perforations of any shape, so there is no need to purchase a new machine for perforation processing, and packaging materials that are superior in terms of manufacturing costs. And was able to.

If the gravure printing machine is possessed by the gravure printing method of the present invention, a printed matter with perforations can be produced by using the perforation imparting member of the present invention and the nip impression cylinder of the present invention. . In addition, any perforation can be imparted by the gravure printing machine with the perforation imparting member , and the use range and application range for various packaging materials can be widened.

In addition, the perforation processing that gives openability can be performed simultaneously with the gravure printing of the pattern with a gravure printing machine, so that the process and manufacturing time can be shortened, and the perforation of any shape can be performed with the gravure printing machine. Therefore, there was no need to purchase a new machine for perforation, and it was possible to make the packaging material superior in manufacturing cost.

Overview of gravure method of the present invention The figure which showed the example of the perforation provision member of Claim 3, 4 The figure which showed another example of the perforation provision member of Claim 3, 4 The figure which showed another example of the perforation provision member of Claim 3, 4 The dimension relation figure which comprises the perforation blade provided in the perforation provision member of Claims 3 and 4 The dimensional relationship enlarged perspective view of the perforation edge part provided in the perforation provision member of Claims 3 and 4 The figure which showed the example of the perforation provision member of Claim 5, 6 The figure which showed another example of the perforation provision member of Claim 5, 6 The figure which showed another example of the perforation provision member of Claim 5, 6 Dimensional relationship diagram constituting a perforation blade provided in the perforation imparting member according to claim 5 or 6 A dimensional relationship enlarged perspective view of a perforation blade portion provided in the perforation imparting member according to claim 5 or 6. The perforation is a straight line in the width direction on the perforation imparting member surface Perforation of a quadratic curve provided in the circumferential direction of the perforation imparting member Diagram of perforation of cubic curve provided in arbitrary shape on perforation imparting member surface Section and enlarged perspective view of the indicated 〇 portion in FIG. 12 is a perforation applying member The figure which changed the arrangement position of the perforation blade of FIG. Machining example of the blade tip for easy perforation Cutlery plate with grooves formed at an angle of 45 degrees to the cutting edge (Diagram of another example of cutting edge to make perforation easier)

The gravure printing plate is prepared with two kinds of gravure printing plates provided with a cut line matching the perforation blade, the perforation giving member is prepared with 3 members , the nip impression cylinder is prepared with 2 cylinders, the printing stock is Three types were prepared, and the present invention was implemented with two printing methods, with and without the use of a reversing device. Details are given below and the results are summarized in a table.

  In order to perfectly match the gravure printing plate in accordance with the perforation, 4 printing plates are necessary in consideration of inversion and non-inversion, and it would be good if the registration could be confirmed. In addition, as the pattern plate, a gravure printing plate having the same circumference was used as a third version.

The perforation imparting members were three members : a member , b member , and c member .

For the a member , a perforated blade was provided on a steel cylinder having a member circumference of 700 mm and a width of 1100 mm, along the curve shown in FIG. The perforation length at one place was approximately 200 mm.

The perforation imparting member was created by a lathe process, and the cutting edge finishing process was performed by an expert. The cutting edge shape is close to FIG. The cutting edge dimensions are indicated by the symbols in the dimensional diagrams of FIGS. 5 and 6, I: 0, 2 mm, C: 0, 3 mm, B: 1, 2 mm, G: 0, 25 mm, D: 0, 35 mm, E: 0. 3 mm. The member thus prepared was quenched by nitriding.

In the member b, a cylinder having a member circumference of 700 mm and a width of 1100 mm was provided with perforation blades in a straight line in the member width direction shown in FIG. The perforation length at one place was 200 mm.

The perforation imparting member was created by lathe processing, and the blade plate that had been perforated was processed into an embedding part. The cutting edge shape is close to FIG. The dimensions of the blade plate are J: 20 mm, G: 0,8 mm, D: 0,3 mm, E: 0,25 mm, H: 0,6 mm, and a length of 200 mm as shown by the symbols in the dimensional diagram of FIG. And this perforated blade was used.
The finished dimensions of the member b were I: 0, 2 mm, C: 1, 4 mm, and B: 1, 2 mm, as indicated by the symbols in the dimensional diagram of FIG. The corner between the stepped portion and the groove was chamfered about 0.9 mm.

c members, like b member, the cylinder member circumferentially 700mm width 1100 mm, provided with perforations blade in a straight line in the member width direction shown in FIG. 16 of three rows in the 4 surface width direction circumferentially. The perforation length at one place was 200 mm.

The perforation imparting member was created by electric discharge machining, such as an embedding portion of a blade plate on which a perforated blade was machined. The cutting edge shape is close to FIG. The blade plate that has been machined with a perforated blade is different from that used for the b member , as shown in the view from the blade edge in FIG. 18, using a blade plate that has grooves formed at an angle of 45 degrees with respect to the blade edge. did. The size of the blade plate is the same as that of the b member . As described above, when grooves having a swing angle rather than perpendicular to the cutting edge are provided, both ends of the perforated blade become sharp and are easy to pierce the film, so that the perforation is easily made. The finished dimension of the c member was L: 0, 2 mm (0, 2 mm cutting edge protruded from the circumference), C: 1, 4 mm, B: 0, 8 mm as shown by the symbols in the dimensional diagram of FIG. . The corner between the stepped portion and the groove was chamfered with 0, 5 mmR.

The nip impression cylinder was two cylinders, a cylinder and b cylinder.

The cylinder a of the nip impression cylinder has a nip impression cylinder core material having a diameter of 200 mm, coated with a synthetic resin on the surface side of the woven cloth, and further coated with a non-silicone release agent on the back side of the coated cloth. Four self-adhesive layers formed with the attached adhesive layer were wound around the outer periphery of the core material of the nip impression cylinder. The thickness of the self-adhesive layer was 0, 3 mm, and the thickness of the coated cloth and the thickness of the pressure-sensitive adhesive layer were about 1: 1. The thickness of the self-adhesive layer formed of 4 layers was 1 mm and 2 mm.

The b cylinder of the nip impression cylinder is different from the a cylinder of the nip impression cylinder in that three layers of self-adhesive layers are wound around the core of the nip impression cylinder. The thickness of the self-adhesive layer formed of three layers was 0, 9 mm.

As printing raw materials, 24,000 m of three types of a stretched polypropylene film of 20 microns, a stretched polyester film of 16 microns, and a nylon film of 15 microns were prepared.

The gravure printing plate has a plate circumference of 700 mm and a width of 1100 mm, and a gravure printing plate is prepared as a printing plate and a b printing plate. The pattern is a member with a perforated edge and a pattern according to the perforation of the b member. did. (It matches the perforation from the ink surface.) In addition, three plates with a pattern with a plate circumference of 700 mm and a width of 1100 mm were prepared and used as gravure printing plates.

The following materials were prepared and the following gravure printing was performed. The gravure printing machine uses an 8-color machine, 1 to 3 units do not perform printing, and are used as empty units. The a and b printing plates are changed, the a, b and c members are changed to the eighth unit, the a and b cylinders are set as the nip impression cylinder of the eighth unit, and gravure printing is performed under the conditions shown in Table 1. I did it. Table 1 also displays the result of checking the perforation change after printing OK, OUT, and 4000 m. Numbering No. for each condition at the end. Was attached. All the results were fine.

  Furthermore, NO. For 1, 6, 9, 12, 15, and 17, printing was performed separately for 20,000 m each, but the perforation formation was good with no change.

  The printed matter created in Example 1 and provided with perforations was used to confirm the subsequent lamination process.

  In the lamination with dry laminate, both the printed matter with perforation from the printing surface side and the printed matter with perforation from the non-printing surface side are applied with dry laminate adhesive (solid content application amount: 2.5 g / square meter). No oozing to the non-coated surface through the perforation was observed. As for the film to be bonded, it was possible to bond the films without any problem regardless of which film was selected.

  In lamination by polyethylene extrusion, an AC agent (imine type, butadiene type, isocyanate type) is applied to a printing film with a coating liquid lifted by a metal plate, and the coating liquid is applied from the film with the metal plate and a nip impression cylinder. The laminate after coating was confirmed by squeezing. The AC agent was permeated to the non-coated surface through the perforation, and there was a transfer of the AC agent coat to the nip impression cylinder. In particular, the isocyanate type was judged to be unusable. In the case of imine type and butadiene type, the transfer of AC agent coating to the nip impression cylinder was recognized, but the appearance of the laminate product was not discernable.

  Therefore, in the in-line processing of the gravure printing and perforation processing of the present invention, it has been judged that it is wise to coat one side of the printing machine with the AC agent before the perforation processing. In particular, when an isocyanate-based AC agent is used, the AC agent must be coated in a printing inline.

  Although there are some restrictions from the above confirmation, it can be confirmed that the printed matter that has been subjected to perforation processing for printing the pattern and imparting openability with the gravure printing machine of the present invention can be applied to all packaging material specifications. It was.

Table 2 shows the contents confirmed for the lamination for forming a packaging material using the printed matter produced by the gravure printing method of the present invention.

A Dimension of stepped portion B Groove width C Groove depth D Perforation length of perforated blade E E Groove spacing provided between cutting edges F Groove depth provided between cutting edges G Perforation width H Perforation Blade height I Actual blade height excluding groove depth J Overall length of plate perforation blade length K Length of blade part of plate perforation blade L Length of blade protruding from the circumference M Depth of groove in plate perforation 1 Film 2 Paper feed 3 Tension controller
4 Ink pan 5 Ink 6 Hannischer roller 7 Gravure printing plate 8 Doctor blade 9 Nip impression cylinder 10 Drying device 11 Cooling roller 12 Perforation applying member 13 provided with perforation blade 13 Nip impression cylinder 14 provided with self-adhesive layer Part 15 Film reversing device 20 Perforation blade 21 Perforation blade edge 22 Groove 23 around the perforation blade Step part 24 Groove 25 provided between the blade edges Perforation 26 provided in a straight line Secondary provided in the plate circumferential direction Curved perforation 27 Cubic perforation 28 provided in an arbitrary shape 28 Cutting portion 29 at the tip of the blade 30 A portion 30 shown in an enlarged view in FIG. 15 A sharpened portion 31 at the tip of the blade 31 Plate-like perforated groove 33 Deepest groove of plate-like perforated blade

Claims (10)

Using a gravure printing machine in which a plurality of printing units for performing gravure printing are provided along the film conveyance path, printing an arbitrary pattern on the film, and a gravure printing plate provided in a subsequent printing unit A gravure printing plate provided with an arbitrary perforation blade that matches the pattern (hereinafter, a gravure printing plate provided with a perforation blade is collectively referred to as a “ perforation imparting member ”), and a nip impression cylinder is woven. A coated cloth coated with a synthetic resin on the surface side of the cloth and further coated with a non-silicone release agent is a pressure-sensitive adhesive attached to the back side of the coated cloth (hereinafter, the coated cloth and the pressure-sensitive adhesive are collectively referred to as “self-adhesive”). A nip impression cylinder wound around the outer periphery of the core material of the nip impression cylinder via a layer), and between the perforation applying member and the nip impression cylinder provided with a self-adhesive layer , Picture mark Has been passed through the film, the printing of the arbitrary pattern, brought in register of the arbitrary pattern, gravure printing method, which comprises forming perforations by said perforation blade   2. The gravure printing method according to claim 1, further comprising printing an arbitrary pattern, and then conveying the film to a reversing device and reversing. The perforation imparting member used in the gravure printing method according to claim 1 or 2 is a printing unit at a subsequent stage of a gravure printing machine in which a plurality of printing units for performing gravure printing are provided along a film conveyance path. A columnar perforation imparting member provided in place of a gravure printing plate, wherein the perforation blade of the perforation imparting member is positioned on the circumference of the perforation imparting member. A groove deeper than the step portion is formed by machining the perforated blade projecting from a flat step portion provided in the periphery, and further between both sides of the perforated blade and between the cutting edge of the perforated blade. A perforation imparting member characterized by being made . The perforation imparting member according to claim 3, wherein the perforation blade is formed by electric discharge machining, cutting, or hand-carving along the axial direction of the perforation imparting member or in a direction inclined from the axial direction. . The perforation imparting member used in the gravure printing method according to claim 1 or 2 is a printing unit at a subsequent stage of a gravure printing machine in which a plurality of printing units for performing gravure printing are provided along a film conveyance path. A columnar perforation imparting member provided in place of the gravure printing plate, provided with a stepped portion on the surface of the perforation imparting member, and forming an embedding portion for embedding a perforated blade in the stepped portion, The sewing machine is characterized in that a perforation blade is attached to the embedding portion, and grooves deeper than the stepped portion are formed between both sides of the perforation blade and between the cutting edge of the perforation blade. Eye-giving member . In perforations application member according to claim 5, on the circumference of the cutting edge the perforations imparting member of the perforation blade or perforation applying member which is formed to a position beyond the circle circumference. The perforation blades, perforations application member according to any one of claims 3-6, which is the full width with or partially intermittently arranged over the perforation applying member. In the case where the perforation blade is disposed in the axial direction of the perforation imparting member , the width of the stepped portion and the depth of the stepped portion from the circumference do not vibrate the perforation imparting member. The perforation imparting member according to any one of claims 3 to 7, which is set in a range of 0.5 mm or less . The nip impression cylinder provided with the self-adhesive used in the gravure printing method according to claim 1 or claim 2 is a coat in which a synthetic resin is coated on the surface side of the woven fabric and further a non-silicon type release agent is coated. A nip impression cylinder characterized in that two or more self-adhesive layers formed of a cloth and an adhesive layer attached to the back side of the coated cloth are wound around the outer periphery of the core of the nip impression cylinder. A gravure printed matter produced by the gravure printing method according to claim 1 or 2 and having a registration of an arbitrary pattern and a perforation on a film is produced, and the gravure printed matter is used to produce aluminum, cellophane In addition, a packaging material characterized by laminating a tearable base film or a tearable base film and a sealing film.

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