Long print

Abstract

Provided is a long printed matter in which an image of a design printing part is finely expressed by letterpress printing. The long printed matter A comprises: a long strip-shaped web 1; a design row including a plurality of design printing parts 2 repeatedly printed by letterpress in a longitudinal direction of the web 1, the design row being arranged in two rows or more in a widthwise direction of the web 1; and a bearer bar printing part 3 that is arranged adjacent to any one of the design rows and extends in the longitudinal direction. The design printing part 2 has a first ink printing part 21 in which first ink is printed by letterpress and a second ink printing part 22 in which second ink is printed by letterpress. The bearer bar printing part 3 has a first bar part 31 in which the first ink is printed by letterpress and a second bar part 32 in which the second ink is printed by letterpress. A width 31W of the first bar part 31 is larger than a width 32W of the second bar part 32.

Description

[Technical field]

[0001] The present invention relates to a long printed material in which a design print portion is repeatedly printed in the longitudinal direction on a long strip-shaped web. [Background technology]

[0002] Generally, sheet products such as labels, packaging materials, and wrapping ribbons are obtained by cutting a long printed material. Such long printed materials usually have a long strip-shaped web and a plurality of design print portions printed repeatedly in the longitudinal direction of the web. The design print portions are formed by printing ink on the web by various printing methods. Printing methods can be broadly divided into letterpress printing and intaglio printing.

[0003] Letterpress printing is relatively inexpensive and has excellent printability for webs of various materials and thicknesses. Examples of letterpress printing include flexographic printing and rotary letterpress printing, and flexographic printing is particularly popular when forming long printed materials by letterpress printing.

[0004] Flexographic printing is a method of printing flexographic ink using a cylindrical plate having a cylindrical plate cylinder and a sheet-like printing plate wound around the plate cylinder. The printing plate has a relief plate. By rotating the cylindrical plate having the printing plate and bringing the surface of the plate into contact with a web, the ink is transferred from the relief plate to the web to form a printed design.

[0005] In letterpress printing methods such as flexography, as the cylindrical plate rotates, the surface of the cylindrical plate alternates between contact with the web (the relief plate contacts the web) and non-contact with the web (the relief plate separates from the web at recesses where there is no relief plate). This causes the cylindrical plate to vibrate, resulting in a phenomenon known as bouncing, which can result in poor ink transfer. Poor ink transfer results in blurred printing, and this problem needs to be improved.

[0006] Patent Document 1 discloses the use of a flexographic printing plate having an image area and a non-image area, in which a region from 0.5 mm to 5 mm from the leading edge of the image area in the printing direction is a lowered region that is lower than the height of the image area other than that region, and the lowered region gradually becomes lower toward the non-image area in the printing direction. Patent Document 1 discloses that by using the flexographic printing plate, bouncing can be suppressed and images without unevenness can be printed. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] WO2016 / 136357 issue Summary of the Invention [Problem to be solved by the invention]

[0008] From the standpoint of technological diversity, when expressing a design by letterpress printing, it is desirable to produce a long printed matter in which the design printing portion is clearly expressed by a means other than that of Patent Document 1.

[0009] An object of the present invention is to provide a long printed matter on which an image of a design print portion is beautifully expressed by letterpress printing. [Means for solving the problem]

[0010] The long-length printed product of the present invention comprises a long, strip-shaped web, a design row consisting of a plurality of design printed sections repeatedly letterpress printed in the longitudinal direction of the web, the design rows being arranged in two or more rows in the short direction of the web, and a bearer bar printed section arranged adjacent to any one of the design rows and extending in the longitudinal direction, the design printed section having a first ink printed section letterpress printed with a first ink and a second ink printed section letterpress printed with a second ink, the bearer bar printed section having a first bar section letterpress printed with the first ink and a second bar section letterpress printed with the second ink, the width of the first bar section being greater than the width of the second bar section.

[0011] In a preferred lengthwise printed matter of the present invention, the first ink-printed portion is a background printed portion, and the second ink-printed portion is a printed portion showing an image including characters.

[0012] In a preferred long-length printed material of the present invention, the web is made of a transparent sheet having heat shrinkability, and in the design row, non-image areas having no design printed areas extend in the short direction between each adjacent design printed area in the longitudinal direction.

[0013] In a preferred long printed product of the present invention, the bearer bar print portion is disposed between two adjacent design rows in the short side direction.

[0014] In a preferred long-length printed product of the present invention, the first bar portion and the second bar portion are overlapped, and the amount of ink applied per unit area of ​​the second bar portion is smaller than the amount of ink applied per unit area of ​​the first bar portion. Effect of the Invention

[0015] According to the present invention, ink leakage can be suppressed when a design printed portion is letterpress printed on a cylindrical plate, so that a long printed material can be provided in which the image of the design printed portion is beautifully expressed by letterpress printing. [Brief description of the drawings]

[0016] [Figure 1] FIG. 1 is a plan view of a long printed material as viewed from the front side. [Diagram 2] FIG. 2 is a plan view of the same long printed matter as viewed from the back side. [Diagram 3] FIG. 3 is a partially enlarged rear view of FIG. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. [Diagram 5] FIG. 5 is a cross-sectional view taken along line VV in FIG. [Figure 6] FIG. 6 is a reference side view of a printing press used in the process of producing long printed materials. [Figure 7(a)] FIG. 7(a) is a plan view of the first cylindrical plate. [Figure 7(b)] FIG. 7(b) is a perspective view of the first cylindrical plate. [Figure 8(a)] FIG. 8(a) is a plan view of the second cylindrical plate. [Figure 8(b)] FIG. 8(b) is a plan view of the third cylindrical plate. [Figure 8(c)] FIG. 8(c) is a plan view of the fourth cylindrical plate. [Figure 8(d)] FIG. 8(d) is a plan view of the fifth cylindrical plate. [Figure 9(a)] FIG. 9(a) is an enlarged perspective view (including a cross section) of a portion of the surface of a relief plate, and is a perspective view including a cross section showing a relief plate on which small protrusions are roughly formed on the surface. [Figure 9(b)] FIG. 9(b) is an enlarged perspective view (including a cross section) of a portion of the surface of the relief plate, and is a perspective view including a cross section showing the relief plate on which small protrusions are densely formed. [Figure 10] FIG. 10 is a partially omitted plan view showing the printing process as seen from the back side of the web. [Figure 11] FIG. 11 is a partially omitted plan view showing the printing process as seen from the back side of the web. [Figure 12] FIG. 12 is a perspective view of a roll of a long printed material wound into a roll. [Figure 13] FIG. 13 is a plan view of the back surface of a long sheet obtained from a long printed matter. [Figure 14] FIG. 14 is a reference perspective view showing a process of forming a cylindrical label from a long sheet. [Figure 15(a)] FIG. 15(a) is a front view showing the process of attaching a label obtained from a long sheet to an article. [Figure 15(b)] FIG. 15(b) is a front view showing the process of attaching a label obtained from a long sheet to an article. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In this specification, the plan view shape refers to the shape of the web when viewed in the normal direction from the front side or back side of the web. In addition, the terms may be prefixed with "first", "second", etc., but this "first" etc. is added only to distinguish the terms and does not have any special meaning such as order or superiority. A numerical range represented by "lower limit value X to upper limit value Y" means a lower limit value X or more and an upper limit value Y or less. When a plurality of the numerical ranges are separately described, it is possible to select an arbitrary lower limit value and an arbitrary upper limit value to set "an arbitrary lower limit value to an arbitrary upper limit value". In addition, the dimensions, thickness, scale ratio, etc. of each component such as the printing part in each figure are different from the actual ones.

[0018] <Overview of long-form prints> Fig. 1 is a view of the long printed matter A as seen from the front side, Fig. 2 is a view of the long printed matter A as seen from the back side, Fig. 3 is an enlarged plan view of a portion of Fig. 2, Fig. 4 is a cross-sectional view taken along line IV-IV in Fig. 3, and Fig. 5 is a cross-sectional view taken along line VV in Fig. 3.

[0019] In Fig. 1, the long printed matter A is in the shape of a long strip in plan view. In this specification, the long strip refers to a generally rectangular shape in plan view whose longitudinal length is sufficiently longer than its lateral length. The lateral direction is a direction perpendicular to the longitudinal direction. The longitudinal length of the long strip is, for example, 5 m or more, preferably 10 m or more.

[0020] The long printed matter A has a long strip-shaped web 1 and a printed area formed on the web 1. Here, in this specification, the printed area consists of an ink-solidified area formed by letterpress printing of ink on the web 1. The printed area includes a design printed area 2 and a bearer bar printed area 3 extending in a strip shape in the longitudinal direction of the web 1. The design printed area 2 is a printed area that represents an image (design), and the bearer bar printed area 3 is a printed area that is formed when a bearer letterpress comes into contact with the web 1 during letterpress printing.

[0021] The design printed section 2 is repeatedly letterpress printed in the longitudinal direction of the web 1, and therefore a plurality of the design printed sections 2 are arranged in the longitudinal direction. Two or more rows (design rows) each consisting of a plurality of the design printed sections 2 arranged in the longitudinal direction are arranged in the lateral direction of the web 1. The bearer bar printed section 3 is arranged adjacent to any one of the design rows.

[0022] The design printing section 2 has a first ink printing section 21 that is letterpress printed with the first ink, and a second ink printing section 22 that is letterpress printed with the second ink. The bearer bar printing section 3 has a first bar section 31 that is letterpress printed with the first ink, and a second bar section 32 that is letterpress printed with the second ink, and the width of the first bar section 31 is greater than the width of the second bar section 32. The width of the bar sections such as the first bar section 31 and the second bar section 32 refers to the length in the short direction.

[0023] <Web> The web 1 is not particularly limited as long as it has flexibility and appropriate strength and rigidity, and examples thereof include synthetic resin sheets, foamed resin sheets, paper, synthetic paper, nonwoven fabrics, and laminated sheets in which two or more of these are laminated. Furthermore, a synthetic resin sheet, paper, or laminated sheet on which a gas and / or light barrier layer such as a metal deposition film is laminated may be used as the web 1. The term sheet also includes what is generally called a film. The material of the synthetic resin sheet is not particularly limited, and examples thereof include polyolefins such as polyethylene, polypropylene, cyclic olefins, and copolymers containing polyethylene, polyesters such as polyethylene terephthalate and polylactic acid, polyamides, and polystyrenes.

[0024] The web 1 may be heat shrinkable and / or self-stretchable, or may be substantially neither heat shrinkable nor self-stretchable. Heat shrinkable refers to the property of shrinking when heated to a predetermined temperature (e.g., 70°C to 100°C). Self-stretchable refers to the property of stretching when a tensile force is applied, and then restoring to approximately the original state when the tensile force is released. Note that an example of the web 1 that is substantially not heat shrinkable is a sheet whose heat shrinkage rate in each of the longitudinal and lateral directions is 5% or less, preferably a sheet whose heat shrinkage rate is 3% or less.

[0025] When a sheet having heat shrinkability and / or self-stretchability is used as the web 1, the sheet may be heat-shrinkable and / or self-stretchable in the short side direction, or may be heat-shrinkable and / or self-stretchable in the long side direction, or may be heat-shrinkable and / or self-stretchable in the short side direction and long side direction. The web 1 may be heat-shrinkable and / or self-stretchable mainly in the short side direction, or may be heat-shrinkable and / or self-stretchable in the long side direction, or may be heat-shrinkable and / or self-stretchable equally in the short side direction and long side direction.

[0026] In the illustrated example, a web 1 that mainly undergoes heat shrinkage in the short-side direction is used. The heat shrinkage rate of the web 1 in the main heat shrinkage direction (e.g., short-side direction) is not particularly limited, but is preferably 20% or more, more preferably 30% or more, and even more preferably 40% or more, so that the web 1 can be well heat-shrink-attached to an adherend having a relatively large diameter difference. The web 1 may be thermally changed in a direction perpendicular to the main heat shrinkage direction (e.g., longitudinal direction), and the heat shrinkage rate in that direction is, for example, -3 to 15%, and preferably 1 to 10%. The negative value of the heat shrinkage rate means thermal elongation.

[0027] In this specification, the heat shrinkage rate is determined by measuring the length of web 1 before heating (stored for 24 hours under standard conditions) (original length) and the length of web 1 after immersion in 90°C warm water for 10 seconds and removal (length after immersion) under standard conditions and substituting the results into the following formula. The length of each web 1 is measured under standard conditions. The standard conditions are 23°C, 1 atmosphere, and 50% RH. Heat shrinkage rate (%) = [{(original length in the longitudinal (or transverse) direction) - (length after immersion in the longitudinal (or transverse) direction)} / (original length in the longitudinal (or transverse) direction)] x 100.

[0028] The thickness of the web 1 is not particularly limited and is, for example, 8 μm to 500 μm, and preferably 10 μm to 200 μm. For example, the thickness of the web 1 made of a synthetic resin sheet, synthetic paper, or a laminated sheet containing these, is 8 μm to 200 μm, and preferably 10 μm to 120 μm.

[0029] Furthermore, the web 1 may be either transparent or opaque. In this specification, transparent means colored and transparent or colorless and transparent. A transparent web 1 is preferably used, and a colorless and transparent web 1 is more preferably used. Among the above examples, examples of the transparent web 1 include a synthetic resin sheet and a laminated sheet of a synthetic resin sheet and another transparent sheet.

[0030] Here, transparency (colored transparent or colorless transparent) refers to a state in which a number (12 point size) printed on white paper in black ink is placed on the back side of an object at a distance of 1 cm from the back side, and the number can be identified from the front side through the object. Opaque refers to a state in which a number placed on the back side under the same conditions as above cannot be seen from the front side of the object (a state in which the number cannot be recognized). An index of transparency (colorless transparent or colored transparent) can be expressed, for example, using total light transmittance. An index of transparency (colorless transparent or colored transparent) is, for example, a total light transmittance of 70% or more, preferably 80% or more, and more preferably 90% or more. However, the total light transmittance refers to the value measured for a transparent object to be measured (in the case of a transparent web 1, the web 1 is the object to be measured, and in the case of a transparent printed portion, the transparent web 1 with a transparent printed layer is the object to be measured) using a measurement method conforming to JIS K 7361 (Test method for total light transmittance of plastic transparent materials).

[0031] <Design and Printing Department> The design printed section 2 is a design pattern of any coherent image (design), and the design pattern is printed repeatedly in the longitudinal direction of the web 1. If the multiple design printed sections 2 arranged in the longitudinal direction are considered to be a "row", the design printed sections 2 may be arranged in only one row in the short side direction of the web 1, but are usually arranged in two or more rows (multiple rows) in the short side direction. There may be two or more design rows in the short side direction of the web 1, and preferably three or more rows, and more preferably four or more rows are arranged. There is no particular limit to the upper limit of the number of design rows, and it is determined by the relationship between the short side length of the web 1 and the short side length of the design printed section 2. In the illustrated example, for convenience, a long printed matter A is shown having four design rows in the short side direction.

[0032] As shown in FIG. 1, the design printing section 2 is provided on the front and / or back surface of the web 1 so that the image (design) can be seen from the front surface side of the web 1. The same is true for the bearer bar printing section 3. In FIG. 1, the design printing section 2 and the bearer bar printing section 3, which can be seen when viewed from the front surface side of the web 1, are represented by solid lines. When the web 1 is transparent, the design printing section 2 is provided on at least one of the front surface and the back surface of the web 1. When the web 1 is opaque, the design printing section 2 is provided on at least the front surface (only the front surface or the front and back surfaces) of the web 1. The bearer bar printing section 3 is formed on the same surface as the design printing section 2 due to a manufacturing method described later. In the illustrated example, the design printing section 2 and the bearer bar printing section 3 are provided on the back surface of the transparent web 1.

[0033] As described above, in each design row, multiple design printed sections 2 are arranged in the longitudinal direction of the web 1, and adjacent design printed sections 2 in the longitudinal direction may be continuous or may be arranged at a predetermined interval in the longitudinal direction. In the illustrated example, adjacent design printed sections 2 in the longitudinal direction are not continuous but are arranged at a predetermined interval. Therefore, in the design row, non-image sections 2a that do not have design printed sections 2 extend in the lateral direction between adjacent design printed sections 2 in the longitudinal direction. This non-image section 2a is a strip extending in the lateral direction, and becomes a transparent section when the web 1 is transparent.

[0034] In each design row, adjacent design printed sections 2 in the short-side direction of the web 1 may be continuous, or may be arranged at a predetermined interval in the short-side direction. In the illustrated example, adjacent design printed sections 2 in the short-side direction are not continuous, but are arranged at a predetermined interval. Therefore, non-image sections 2b that do not have design printed sections 2 extend in the longitudinal direction between adjacent design printed sections 2 in the short-side direction. This non-image section 2b is a strip extending in the longitudinal direction, and becomes a transparent section when the web 1 is transparent. Hereinafter, the strip-shaped non-image section 2a extending in the short-side direction is referred to as the short-side non-image section 2a, and the strip-shaped non-image section 2b extending in the longitudinal direction is referred to as the longitudinal non-image section 2b.

[0035] The width of the short non-image portion 2a (the length of the short non-image portion 2a in the long direction) and the width of the long non-image portion 2b (the length of the long non-image portion 2b in the short direction) are not particularly limited and are appropriately set independently. The width of the short non-image portion 2a is, for example, 3 mm to 10 mm, and the width of the long non-image portion 2b is, for example, 1 mm to 10 mm.

[0036] The design printing section 2 is formed by two or more different inks. The inks constituting the design printing section 2 (and the bearer bar printing section 3) are color inks exhibiting any color. As described above, the design printing section 2 has a first ink printing section 21 in which the first ink is letterpress printed, and a second ink printing section 22 in which the second ink is letterpress printed. The first ink and the second ink are different inks. Here, the different inks refer to inks that are letterpress printed on different cylindrical plates when forming the design printing section 2 in the manufacturing method described below. The different inks may have different colors and / or compositions, or may have the same color and composition. Usually, the different inks are inks with different colors (different color inks), and such inks with different colors generally have different compositions.

[0037] The design printed section 2 may further include a printed section printed by letterpress printing with an ink different from the first ink printed section 21, which is a solidified section of the first ink, and the second ink printed section 22, which is a solidified section of the second ink. From the viewpoint of presenting a more decorative design, the design printed section 2 is preferably formed by letterpress printing with three or more different inks, and more preferably formed by letterpress printing with four or more different inks. In the illustrated example, the design printed section 2 is formed by five different inks. Hereinafter, the five inks and the printed sections formed by letterpress printing with them are referred to as the first to fifth inks and the first to fifth ink printed sections 21 to 25.

[0038] The image (design) shown on the design print section 2 is not particularly limited and can be any image. Images shown on the design print section 2 can be broadly classified into (1) images that allow some idea to be visually identifiable (hereinafter, images that allow some idea to be visually identifiable will be specifically referred to as "marking") and (2) images that do not allow some idea to be visually identifiable (hereinafter, referred to as "non-marking" in contrast to the marking).

[0039] The markings include characters, symbols, patterns, etc. The patterns are ones that allow the viewer to visually identify some idea, and include various patterns such as mountain patterns, flower patterns, crystal cut patterns, wave patterns, and gradation patterns expressed by differences in the amount of ink applied.

[0040] The non-marking may be a solid image of one color without a pattern. The solid image means that the ink solidified portion extends in the surface direction to form one continuous layer. However, since a solid image formed by a printing method is composed of an aggregate of ink that has been applied in a dot pattern and solidified, it should be noted that, although the ink solidified portion extends in the surface direction to form one continuous layer when viewed macroscopically, there may be countless minute gaps when viewed microscopically. Even if there are minute gaps when viewed microscopically, if the image forms one continuous layer macroscopically, it is considered to be included in the category of a solid image.

[0041] The image of the design printing portion 2 may be only a sign, or only a non-sign, or both a sign and a non-sign. Preferably, the image of the design printing portion 2 is composed of only a sign, or a sign and a non-sign. One preferred design printing portion 2 is composed of multiple printing portions representing a sign, and another preferred design printing portion 2 is composed of at least one printing portion representing a sign and at least one printing portion representing a non-sign. A particularly preferred design printing portion 2 is composed of two or more printing portions representing a sign and one printing portion representing a non-sign.

[0042] In the illustrated example, the first ink-printed portion 21 formed by letterpress printing with the first ink is a background printed portion that serves as the background for the other ink-printed portions (the second to fifth ink-printed portions 22 to 25, etc.). The background printed portion (the first ink-printed portion 21) has the effect of highlighting the markings of the other ink-printed portions and blends with the markings of the other ink-printed portions to become one element of the design represented by the design printed portion 2. The first ink-printed portion 21, which is a background printed portion, is formed to extend to the back surfaces of the other ink-printed portions and the back surface of the web 1 so as to cover the back surfaces of the other ink-printed portions (the second to fifth ink-printed portions 22 to 25, etc.) and the back surface of the web 1 (the back surface of the web 1 in the range where no ink-printed portions are formed). Therefore, the first ink-printed portion 21 constitutes the backmost portion of the design printed portion 2. In the illustrated example, the other ink printing units (second to fifth ink printing units 22 to 25, etc.) are interposed between the web 1 and the first ink printing unit 21.

[0043] The first ink printed portion 21, which is the background printed portion, may be a printed portion showing a pattern such as a crystal cut pattern, a wave pattern, or a gradation pattern shown by the difference in the amount of ink applied, as described above, or may be a plain, solid color printed portion. Preferably, the first ink printed portion 21 is a marked or unmarked solid printed portion, and more preferably, is an unmarked, plain, solid color printed portion.

[0044] The color of the first ink printed portion 21 is not particularly limited and may be any one selected from white, silver, black, and the like. Preferably, the plain, one-color first ink printed portion 21 is white. Such a plain, white first ink printed portion 21 can be formed by letterpress printing a white ink (first ink) on the web 1.

[0045] The ink printed units (second to fifth ink printed units 22 to 25) other than the first ink printed unit 21 are provided directly on the back surface of the web 1, and the first ink printed unit 21 is provided on the back surfaces of the ink printed units 22 to 25 and the back surface of the web 1 so as to cover the ink printed units 22 to 25. The thickness of each ink printed unit (first to fifth ink printed units 21 to 25) is not particularly limited and is independently, for example, 0.5 μm to 5 μm.

[0046] In each plan view, the area where the first ink-printed portion 21 is provided is shown as a horizontally long rectangle. The first ink-printed portion 21 is formed by letterpress printing the first ink in a solid manner within this horizontally long rectangular area. However, it should be noted that the plan view shape of the area where the first ink-printed portion 21 is provided and its arrangement are not limited to the illustrated examples, and are described for reference only.

[0047] When viewed from the back side of the web 1, the second to fifth ink printed areas 22 to 25 cannot be clearly seen because they are covered by the first ink printed area 21, which is the background printed area. In Fig. 1, the second to fifth ink printed areas 22 to 25 are drawn with solid lines to indicate that they are clearly visible from the front side, but in Fig. 2, the second to fifth ink printed areas 22 to 25 are drawn with dashed lines to indicate that they are not clearly visible from the back side.

[0048] The second to fifth ink printed sections 22 to 25 each independently represent an arbitrary marking. In terms of the content (information) visually conveyed by the marking, they can be broadly divided into statutory markings and non-statutory markings. Statutory markings are those that must be represented according to law, industry group agreements, or customs. Statutory markings are determined according to the product to which the long printed matter A is applied, and examples include product name, ingredients, place of origin, content amount, expiration date, production date, manufacturer (seller), etc.

[0049] Legal indications generally consist mainly of characters, but are not limited to this and may also include symbols. Non-legal indications are usually arbitrary indications used to advertise a product. Non-legal indications generally include trademarks (product names), characters, product images, product descriptions, catchphrases, etc.

[0050] For example, at least one of the multiple ink-printed sections constituting the design print section 2 is a printed section that represents a legal display, and at least one of them is a printed section that represents a non-legal display. In the illustrated example, the second ink-printed section 22 formed by letterpress printing with the second ink represents a legal display, and the third to fifth ink-printed sections formed by letterpress printing with the third to fifth inks represent non-legal displays, respectively.

[0051] In each plan view, the area where the second ink printing unit 22 is provided is represented by a square, the area where the third ink printing unit is provided is represented by a vertically elongated rectangle, the area where the fourth ink printing unit is provided is represented by a triangle, and the area where the fifth ink printing unit is provided is represented by a circle.

[0052] However, it should be noted that the planar shape of the area in which the second to fifth ink printing units 22 to 25 are provided and their arrangement are not limited to the illustrated example, and are described for reference only. Furthermore, when the second to fifth ink printing units 22 to 25 represent characters or symbols, the characters or symbols are concentrated within the range of the planar shape (for example, a square for the second ink printing unit 22, and a vertically long rectangle for the third ink printing unit 23). Furthermore, in the illustrated example, the first to fifth ink printing units 21 to 25 are each formed in a single area, but each may be formed in a distributed manner in two or more areas.

[0053] In terms of the length in the longitudinal direction, the longitudinal length of the first ink printing section 21 is greater than the longitudinal length of the second ink printing section 22. The longitudinal lengths of the ink printing sections other than the first ink printing section 21 and the second ink printing section 22 are not particularly limited, provided that they are smaller than the longitudinal length of the first ink printing section 21, and may be the same as or smaller than the longitudinal length of the second ink printing section 22. For example, the longitudinal lengths of the ink printing sections other than the first ink printing section 21 and the second ink printing section 22 are all smaller than the longitudinal length of the second ink printing section 22. For example, the relationship of the longitudinal length of the first ink printing section 21>the longitudinal length of the second ink printing section 22>the longitudinal length of the third ink printing section 23≧the longitudinal length of the fourth ink printing section 24≧the longitudinal length of the fifth ink printing section 25 is satisfied.

[0054] In the illustrated example, the relationship is satisfied: longitudinal length of first ink printed section 21 > longitudinal length of second ink printed section 22 > longitudinal length of third ink printed section 23 > longitudinal length of fourth ink printed section 24 > longitudinal length of fifth ink printed section 25. Note that when the first to fifth ink printed sections 21 to 25 are each formed in two or more areas in the longitudinal direction, the longitudinal length of each of the first to fifth ink printed sections 21 to 25 refers to the sum of the longitudinal lengths of the two or more areas.

[0055] For example, when the longitudinal length of the first ink printed section 21 is 100%, the longitudinal length of the second ink printed section 22 is 30% to 95%, the longitudinal length of the third ink printed section 23 is 30% to 90%, the longitudinal length of the fourth ink printed section 24 is 15% to 60%, and the longitudinal length of the fifth ink printed section 25 is 15% to 60%. The short-side lengths of the first to fifth ink printed sections 21 to 25 are not particularly limited and may be the same or different from each other. When the first ink printed section 21 is used as the background print, the short-side length of the first ink printed section 21 is usually the longest, as shown in the illustrated example.

[0056] <Bearer Bar Printing Department> The bearer bar printing portion 3 has a first bar portion 31 printed by letterpress with a first ink and a second bar portion 32 printed by letterpress with a second ink, and the width of the first bar portion 31 is greater than the width of the second bar portion 32.

[0057] The bearer bar printing section 3 may have three or more bar sections, provided that it has two bar sections, a first bar section 31 and a second bar section 32. Preferably, the bearer bar printing section 3 is made up of a plurality of bar sections each corresponding to each ink printing section of the design printing section 2. As described above, when the design printing section 2 is made up of the first to fifth ink printing sections 21 to 25, the bearer bar printing section 3 is made up of the first to fifth bar sections 31 to 35 corresponding to each ink printing section.

[0058] The first to fifth bar portions 31 to 35 all extend in a strip shape in the longitudinal direction of the web 1. However, the first to fifth bar portions 31 to 35 are not continuous over the entire longitudinal direction of the web 1, but extend in a strip shape in the longitudinal direction with periodic interruptions in places along the longitudinal direction. These interruptions correspond to the joints of the cylindrical plate, as in the manufacturing method described below. In the illustrated example, the interruptions of the first to fifth bar portions 31 to 35 each coincide with the short-side non-image portion 2a.

[0059] The first bar portion 31 is formed by letterpress printing with the first ink. Therefore, the first ink-printed portion 21 and the first bar portion 31 are formed from the same ink (the first ink). The second bar portion 32 is formed by letterpress printing with the second ink. Therefore, the second ink-printed portion 22 and the second bar portion 32 are formed from the same ink (the second ink). The third bar portion 33 is formed by letterpress printing with the third ink. Therefore, the third ink-printed portion 23 and the third bar portion 33 are formed from the same ink (the third ink). The fourth bar portion 34 is formed by letterpress printing with the fourth ink. Therefore, the fourth ink-printed portion 24 and the fourth bar portion 34 are formed from the same ink (the fourth ink). The fifth bar portion 35 is formed by letterpress printing with the fifth ink. Therefore, the fifth ink printing portion 25 and the fifth bar portion 35 are formed from the same ink (the fifth ink).

[0060] The thickness of each bar portion (first to fifth bar portions 31 to 35) is not particularly limited and is, for example, 0.5 μm to 5 μm. In terms of width (length in the short direction of the web 1), the width of the first bar portion 31 is larger than the width of the second bar portion 32.

[0061] The width of the bar parts other than the first bar part 31 and the second bar part 32 is not particularly limited, and may be the same as or smaller than the width of the second bar part 32, provided that the width is smaller than the width of the first bar part 31. For example, the width of the bar parts other than the first bar part 31 and the second bar part 32 is all smaller than the width of the second bar part 32. For example, the following relationship is satisfied: width of the first bar part 31>width of the second bar part 32>width of the third bar part 33≧width of the fourth bar part 34≧width of the fifth bar part 35.

[0062] In the illustrated example, the relationship is as follows: width 31W of first bar portion 31> width 32W of second bar portion 32> width 33W of third bar portion 33> width 34W of fourth bar portion 34> width 35W of fifth bar portion 35 (see FIG. 3 for reference symbols 31W to 35W). Note that when the first to fifth bar portions 31 to 35 are each formed in two or more areas in the short side direction, the width of each of the first to fifth bar portions 31 to 35 refers to the sum of the widths of the two or more areas.

[0063] For example, if the width of the first bar portion 31 is 100%, the width of the second bar portion 32 is 31% to 60%, the width of the third bar portion 33 is 11% to 30%, the width of the fourth bar portion 34 is 1% to 10%, and the width of the fifth bar portion 35 is more than 0% but less than 10%.

[0064] There is a correlation between the longitudinal lengths of the first to fifth ink-printed sections 21 to 25 and the widths of the corresponding first to fifth bar sections 31 to 35. In other words, the bar sections corresponding to the ink-printed sections with the largest longitudinal lengths have the largest widths. For example, the first bar section 31 corresponding to the first ink-printed section 21, which has the largest longitudinal length, has the largest width, and the second bar section 32 corresponding to the second ink-printed section 22, which has a smaller longitudinal length than the first ink-printed section 21, has a smaller width than the first bar section 31.

[0065] There is no particular limitation on the arrangement of the bearer bar printed portion 3 (the first to fifth bar portions 31 to 35) in the short side direction of the web 1. The bearer bar printed portion 3 (the first to fifth bar portions 31 to 35) may be arranged, for example, at the right end or left end of the web 1 in the short side direction, or at the middle of the web 1 in the short side direction.

[0066] When the bearer bar printed section 3 is located at the right end in the short side direction of the web 1, it means that the bearer bar printed section 3 is located in the area between the right edge in the short side direction of the web 1 and the rightmost design row. When the bearer bar printed section 3 is located at the left end in the short side direction of the web 1, it means that the bearer bar printed section 3 is located in the area between the left edge in the short side direction of the web 1 and the leftmost design row. When the bearer bar printed section 3 is located in the middle part in the short side direction of the web 1, it means that the bearer bar printed section 3 is located in the area between two adjacent design rows in the short side direction.

[0067] Preferably, the bearer bar printing section 3 (the first to fifth bar sections 31 to 35) is disposed in the middle in the short side direction of the web 1. In the illustrated example, the bearer bar printing section 3 is disposed in the approximate center in the short side direction of the web 1 (for example, in the region between the two design rows on the right side and the two design rows on the left side).

[0068] The first to fifth bar portions 31 to 35 (each bar portion) may be provided on the web 1 with at least one bar portion overlapping with at least one other bar portion, or may be provided directly on the web 1 with at least one bar portion overlapping with at least one other bar portion and at least one bar portion not overlapping with other bar portions, or the first to fifth bar portions 31 to 35 (each bar portion) may be provided directly on the web 1 independently without overlapping with each other.

[0069] Examples of cases in which at least one bar portion and at least one bar portion are provided on the web 1 in an overlapping state include a case in which the second to fifth bar portions 32 to 35 (multiple bar portions) are arranged side by side in the short side direction without overlapping, and the first bar portion 31 is arranged overlapping all of the second to fifth bar portions 32 to 35, a case in which the second to fourth bar portions 32 to 34 (multiple bar portions) are arranged side by side in the short side direction without overlapping, and the first bar portion 31 and the fifth bar portion 35 are arranged overlapping all of the second to fourth bar portions 32 to 34, and a case in which all of the bar portions 31 to 35 overlap in the thickness direction.

[0070] As described later, the area of ​​the long printed product A including the bearer bar printed section 3 is discarded when the long printed product is used, so from the viewpoint of reducing the amount of waste, it is preferable that the width of the bearer bar printed section 3 is as small as possible. From this viewpoint, it is preferable that the first to fifth bar sections 31 to 35 (each bar section) constituting the bearer bar printed section 3 overlap at least one bar section, more preferably three or more bar sections overlap, and most preferably all bar sections overlap in the thickness direction.

[0071] On the other hand, as described later, the long printed matter A is stored and transported in a roll, and from the viewpoint of preventing blocking of the long printed matter A in the roll, it is preferable that the first to fifth bar parts 31 to 35 (each bar part) constituting the bearer bar printed part 3 are arranged side by side in the short direction without overlapping each other. If each bar part overlaps, the thickness of the bearer bar printed part 3 at the overlapping part becomes large, and blocking is likely to occur at the overlapping part when the long printed matter A is rolled up. From the viewpoint of preventing blocking, it is preferable that the maximum thickness of the bearer bar printed part 3 is the same as or smaller than the maximum thickness of the design printed part 2.

[0072] In addition, in order to make the width of the bearer bar printing section 3 consisting of multiple bar sections as small as possible, it is preferable that the multiple bar sections arranged side by side in the short side direction are arranged so that both side edges in the short side direction are close to each other or so that both side edges in the short side direction are in contact with each other.

[0073] In order to reduce the amount of waste and prevent blocking at the same time, it is preferable that the bearer bar print section 3 has two overlapping bar sections. Even if the two bar sections overlap, the thickness of the bearer bar print section does not become so large, and blocking of the long printed matter can be suppressed. For example, when the bearer bar print section 3 is composed of the first and second bar sections 31, 32, it is preferable that the first and second bar sections 31, 32 are provided overlapping. For example, when the bearer bar print section 3 has bar sections other than the first and second bar sections 31, 32, it is preferable that the bar sections other than the first bar section 31 are arranged side by side in the short direction without overlapping each other, and the first bar section 31 is arranged so as to overlap each of the multiple bar sections arranged side by side.

[0074] Although not shown, when the bearer bar printing unit 3 has the first to fifth bar portions 31 to 35, three bar portions selected from the second to fifth bar portions 32 to 35 may be arranged side by side in the short-side direction without overlapping each other, and the remaining one bar portion may be arranged overlapping any one of the three bar portions, and the first bar portion 31 may be arranged so as to overlap each of the multiple bar portions arranged side by side. For example, the second bar portion 32, the third bar portion 33, and the fourth bar portion 34 may be arranged side by side in the short-side direction without overlapping each other, and the fourth bar portion 34 may be arranged overlapping the third bar portion 33, and the first bar portion 31 may be arranged so as to overlap them.

[0075] Alternatively, although not shown, when the bearer bar printing unit 3 has the first to fifth bar portions 31 to 35, two bar portions selected from the second to fifth bar portions 32 to 35 may be arranged side by side in the short side direction without overlapping each other, and the remaining two bar portions may be arranged overlapping two bar portions arranged side by side in the short side direction, and the first bar portion 31 may be arranged to overlap each of the multiple bar portions arranged side by side. For example, the second bar portion 32 and the third bar portion 33 may be arranged side by side in the short side direction without overlapping each other, the fourth bar portion 34 may overlap the second bar portion 32 and the fifth bar portion 35 may overlap the third bar portion 33, and the first bar portion 31 may be arranged to overlap them.

[0076] When the bearer bar printing unit 3 is composed of the first to fifth bar parts 31 to 35 as in the illustrated example, it is preferable that the second to fifth bar parts 32 to 35 are arranged side by side in the short-side direction without overlapping each other, and the first bar part 31 is arranged so as to overlap each of the second to fifth bar parts 32 to 35. In this case, as in the illustrated example, the second to fifth bar parts 32 to 35 are directly provided on the back surface of the web 1, and the first bar part 31 is provided so as to cover the back surfaces of the second to fifth bar parts 32 to 35. Although not particularly illustrated, the first bar part 31 may be provided directly on the back surface of the web 1, and the second to fifth bar parts 32 to 35 may be provided side by side on the back surface of the first bar part 31 without overlapping each other. In the illustrated example, the second to fifth bar parts 32 to 35 arranged side by side in the short-side direction are provided so that adjacent both side edges in the short-side direction are close to each other, but they may be provided so that both side edges in the short-side direction are in contact with each other (not illustrated).

[0077] The ink adhesion amount per unit area of ​​each bar portion (first to fifth bar portions 31 to 35) constituting the bearer bar print portion 3 is not particularly limited and can be set appropriately. As described above, by reducing the thickness of the bearer bar print portion 3, the occurrence of blocking can be suppressed. For example, when the first bar portion 31 and the second bar portion 32 overlap, the occurrence of blocking can be suppressed by making the total thickness of the first bar portion 31 and the second bar portion 32 relatively small. For this reason, in order to make the total thickness of the first bar portion 31 and the second bar portion 32 relatively small, it is preferable to make the ink adhesion amount per unit area of ​​the second bar portion 32 smaller than the ink adhesion amount per unit area of ​​the first bar portion 31. The ink adhesion amount and thickness per unit area of ​​the bar portion formed by letterpress printing are usually in a proportional relationship, and the thickness of the second bar portion 32, whose ink adhesion amount per unit area is smaller than the ink adhesion amount per unit area of ​​the first bar portion 31, is smaller than the thickness of the first bar portion 31.

[0078] For the same reason, it is preferable that the ink adhesion amount per unit area of ​​each of the second to fifth bar portions 32 to 35 is smaller than the ink adhesion amount per unit area of ​​the first bar portion 31. The ink adhesion amount per unit area of ​​each of the second to fifth bar portions 32 to 35 may be the same or different. Preferably, the relationship of ink adhesion amount per unit area of ​​the first bar portion 31>ink adhesion amount per unit area of ​​the second bar portion 32 is satisfied, and more preferably, the relationship of ink adhesion amount per unit area of ​​the first bar portion 31>ink adhesion amount per unit area of ​​the second bar portion 32, or the ink adhesion amount per unit area of ​​the third bar portion 33, or the ink adhesion amount per unit area of ​​the fourth bar portion 34, or the ink adhesion amount per unit area of ​​the fifth bar portion 35 is satisfied.

[0079] <Manufacturing method for long-length printed materials> The long printed matter A can be obtained, for example, by the following method. However, the long printed matter A is not limited to the one obtained by the manufacturing method described below.

[0080] The long printed matter A is obtained by a process of transporting a long strip-shaped web 1 in the longitudinal direction, and a process of printing at least two inks (a first ink and a second ink) on the web 1 being transported to form a design printed section 2 and a bearer bar printed section 3. The printing method used to form the design printed section 2 and the bearer bar printed section 3 is a letterpress printing method using a cylindrical plate in which a sheet-like printing plate is wound around a plate cylinder, and preferably a flexographic printing method using a cylindrical plate.

[0081] FIG. 6 is a reference side view of a printing press used in the manufacturing process of long printed materials, showing the printing press 5. The thin arrow in FIG. 6 indicates the transport direction of the web 1. The printing press 5 is disposed in the middle of feeding the web 1 in the longitudinal direction. The printing press 5 has, for example, a cylindrical plate for a flexographic printing method. As described above, when the design printing unit 2 is made up of the first to fifth ink printing units 21 to 25, five cylindrical plates 61 to 65 (first cylindrical plate 61, second cylindrical plate 62, third cylindrical plate 63, fourth cylindrical plate 64 and fifth cylindrical plate 65) are disposed.

[0082] In detail, as shown in FIG. 6, the printing press 5 has a center drum 51 that transports the web 1, and a plurality of cylindrical plates (for example, first to fifth cylindrical plates 61 to 65) arranged around the center drum 51 with the web 1 in between. For example, the fifth cylindrical plate 65, the fourth cylindrical plate 64, the third cylindrical plate 63, the second cylindrical plate 62, and the first cylindrical plate 61 are arranged in this order from the upstream side to the downstream side in the transport direction of the web 1. The arrangement of the first to fifth cylindrical plates 61 to 65 is not limited to this order and can be changed as appropriate. However, when the first ink printing section 21 is a one-color background printing section, the first cylindrical plate 61 that forms it is arranged on the most downstream side. In this case, the arrangement of the other cylindrical plates (the second to fifth cylindrical plates 65) can be selected arbitrarily, provided that the first cylindrical plate 61 is arranged on the most downstream side.

[0083] Each of the first to fifth cylindrical plates 61 to 65 is equipped with an anilox roll 52 and a doctor chamber 53. Ink is applied from the doctor chamber 53 to the anilox roll 52, and then transferred from the anilox roll 52 to the relief plate of the cylindrical plate, and the ink is printed onto the web 1 from the relief plate of the cylindrical plate.

[0084] The cylindrical plates (first to fifth cylindrical plates 61 to 65) have a cylindrical plate cylinder 69 and sheet-like printing plates (first to fifth printing plates 71 to 75) wrapped around the plate cylinder 69. The sheet-like printing plates are, for example, flexible sheets of elastomer, rubber, or the like, on which relief printing is formed. The printing press 5, including the plate cylinder 69, the sheet-like printing plates, the anilox roll 52, and the doctor chamber 53, may be any of those used in conventionally known flexographic printing methods.

[0085] Fig. 7(a) is a plan view of the first cylindrical plate, and Fig. 7(b) is a perspective view of the first cylindrical plate. More specifically, Fig. 7(a) and Fig. 7(b) show a first cylindrical plate 61 for simultaneously letterpress printing the first ink printing section 21 of the design printing section 2 and the first bar section 31 of the bearer bar printing section 3.

[0086] The first cylindrical plate 61 has a columnar plate cylinder 69 having a support shaft 68, a sheet-like first printing plate 71 wrapped around the plate cylinder 69, and a joint adhesive 67 that fills the seams at both ends of the first printing plate 71. The first printing plate 71 has, on its surface, a design relief plate 711 for printing the first ink printing portion 21 and a bearer relief plate 712 for printing the first bar portion 31 formed thereon.

[0087] The design relief 711 of the first printing plate 71 wound around the plate cylinder 69 is regularly arranged at a predetermined interval in the circumferential direction of the plate cylinder 69 and at a predetermined interval in the axial direction of the plate cylinder 69. The circumferential length and axial length of the design relief 711 of the first printing plate 71 are equal to the longitudinal length and transverse length of the first ink printing section 21. The bearer relief 712 of the first printing plate 71 wound around the plate cylinder 69 is arranged in a circumferentially continuous convex stripe at the axial center of the plate cylinder 69. The axial length of the bearer relief 712 of the first printing plate 71 is equal to the width (transverse length) of the first bar section 31. The circumferential length of the bearer relief 712 of the first printing plate 71 is approximately equal to the circumferential length of the plate cylinder 69 minus the width of the joint portion.

[0088] It should be noted that the design relief plate 711 and the bearer relief plate 712 cannot be formed at the joints at both ends of the first printing plate 71. The joints of this first cylindrical plate 61 (the parts filled with joint adhesive 67) extend in the axial direction of the plate cylinder 69. When letterpress printing is performed with this first cylindrical plate 61, ink does not adhere to the joints, and the joints correspond to the points where the short-side non-image portion 2a and the first bar portion 31 are periodically discontinued.

[0089] Figure 8(a) shows a second cylindrical plate 62 for simultaneously letterpress printing the second ink printing section 22 of the design printing section 2 and the second bar section 32 of the bearer bar printing section 3, Figure 8(b) shows a third cylindrical plate 63 for simultaneously letterpress printing the third ink printing section 23 of the design printing section 2 and the third bar section 33 of the bearer bar printing section 3, Figure 8(c) shows a fourth cylindrical plate 64 for simultaneously letterpress printing the fourth ink printing section 24 of the design printing section 2 and the fourth bar section 34 of the bearer bar printing section 3, and Figure 8(d) shows a fifth cylindrical plate 65 for simultaneously letterpress printing the fifth ink printing section 25 of the design printing section 2 and the fifth bar section 35 of the bearer bar printing section 3.

[0090] The configurations of the second to fifth cylindrical plates 62 to 65 are similar to that of the above-mentioned first cylindrical plate 61. Therefore, by replacing "first" in the paragraph explaining the configuration of the above-mentioned first cylindrical plate 61 with "second," "third," "fourth," or "fifth," and by replacing the reference numeral "71" in the above paragraph with "72," "73," "74," or "75," the configurations of the second to fifth cylindrical plates 62 to 65 are deemed to be explained here.

[0091] Furthermore, the circumferential length of each design relief plate 711 to 751 of the first to fifth printing plates 71 to 75 is equal to the longitudinal length of the first to fifth ink printing sections 21 to 25, respectively, and therefore in the illustrated example, the following relationship is satisfied: circumferential length of design relief plate 711 of first printing plate 71 > circumferential length of design relief plate 721 of second printing plate 72 > circumferential length of design relief plate 731 of third printing plate 73 > circumferential length of design relief plate 741 of fourth printing plate 74 > circumferential length of design relief plate 751 of fifth printing plate 75.

[0092] Furthermore, since the axial length of each of the bearer relief plates 712 to 752 of the first to fifth printing plates 71 to 75 is equal to the width of the first to fifth bar sections 31 to 35, respectively, in the illustrated example, the following relationship is satisfied: axial length of the bearer relief plate 712 of the first printing plate 71 > axial length of the bearer relief plate 722 of the second printing plate 72 > axial length of the bearer relief plate 732 of the third printing plate 73 > axial length of the bearer relief plate 742 of the fourth printing plate 74 > axial length of the bearer relief plate 752 of the fifth printing plate 75.

[0093] 8(a) to 8(d), the bearer relief plates 722 to 752 of the second to fifth printing plates 72 to 75 are laterally shifted so as not to overlap with each other in the axial positional relationship. By using the second to fifth printing plates 72 to 75 in which the bearer relief plates 722 to 752 are laterally shifted in this manner, a long printed matter A is obtained in which the second to fifth bar portions 32 to 35 are printed side by side on the web 1 without overlapping with each other.

[0094] 9(a) and (b) are perspective views including a cross section of a portion of a relief plate. As shown in Fig. 9(a) and (b), a large number of small protrusions 79 are provided on the surface of each relief plate (design relief plate and bearer relief plate) of the first to fifth printing plates 71 to 75. Therefore, microscopically, the relief plate is composed of a collection of a large number of small protrusions 79. During printing, ink adheres to the top surface of each small protrusion 79, and the ink is transferred from the top surface of each small protrusion 79 to the web 1, whereby the design print section 2 and the bearer bar print section 3 are letterpress printed.

[0095] Figure 9(a) shows a relief plate with sparsely formed small protrusions 79, while figure 9(b) shows a relief plate with densely formed small protrusions 79. The relief plate with sparsely formed small protrusions 79 in Figure 9(a) can print ink-printed sections and bar sections with a small amount of ink attached per unit area. The relief plate with densely formed small protrusions 79 in Figure 9(b) can print ink-printed sections and bar sections with a large amount of ink attached per unit area.

[0096] As described above, for example, when forming the first bar portion 31 and the second bar portion 32 that satisfy the relationship of ink adhesion amount per unit area of ​​the first bar portion 31>ink adhesion amount per unit area of ​​the second bar portion 32, letterpress printing may be performed using a first printing plate 71 having a bearer relief plate 712 on which the small protrusions 79 are densely formed, and a second printing plate 72 having a bearer relief plate 722 on which the small protrusions 79 are sparsely formed. Furthermore, when two bars selected from the second to fifth bar portions 32 to 35 are provided overlapping with each other, from the viewpoint of suppressing blocking, it is preferable to form the two overlapping bars using a printing plate having a bearer relief plate on which the small protrusions 79 are sparsely formed.

[0097] <<Transportation process>> 6, a long strip-shaped web 1 is transported in the longitudinal direction. When the web 1 is fed along the periphery of a center drum 51, letterpress printing is sequentially performed on the web 1 in a printing process described later.

[0098] <<Printing process>> In the printing process, at least two inks (first ink and second ink) are printed on the web 1 to form the design printed section 2 and the bearer bar printed section 3. Below, a description will be given of a case where the design printed section 2 consisting of the first to fifth ink printed sections 21 to 25 and the bearer bar printed section 3 consisting of the first to fifth bar sections 31 to 35 are formed by letterpress printing the first to fifth inks as described above. However, the printing order of the first to fifth inks is not limited to the following, and the printing order of each ink may be changed by appropriately changing the arrangement of each cylindrical plate.

[0099] 6, the fifth ink printing portion 25 and the fifth bar portion 35 are simultaneously letterpress printed on the web 1 fed to the center drum 51 by the fifth cylindrical plate 65. Figures 10 and 11 are plan views showing the process of printing on the web 1 using the cylindrical plate. These plan views are also views of the back side of the web 1 as seen from the outside of the center drum 51.

[0100] 6 and 10, the fifth ink is printed on the rear surface of the web 1 by the fifth cylindrical plate 65 to form the fifth ink printed portion 25 and the fifth bar portion 35. Next, the fourth ink is printed on the rear surface of the web 1 by the fourth cylindrical plate 64 to form the fourth ink printed portion 24 and the fourth bar portion 34, and the third ink is printed on the rear surface of the web 1 by the third cylindrical plate 63 to form the third ink printed portion 23 and the third bar portion 33.

[0101] 6 and 11, the second ink is printed on the rear surface of the web 1 by the second cylindrical plate 62 to form the second ink printed portion 22 and the second bar portion 32, and finally, the first ink is printed on the rear surface of the web 1 by the first cylindrical plate 61 to form the first ink printed portion 21 and the first bar portion 31. Depending on the type of ink, the ink is dried or irradiated with ionizing radiation such as ultraviolet light to harden the ink. The obtained long printed material A is usually wound up on a winding section having a core material 59. FIG. 12 shows a roll body B in which the long printed material A is wound up in a roll shape around the core material 59.

[0102] <Effects of long prints> In the long-length printed matter A of the present disclosure, the image of the ink printing portion constituting the design printing portion 2 is beautifully expressed by letterpress printing. Specifically, when producing the long-length printed matter A, as described above, the ink is letterpress printed onto the web 1 using a cylindrical plate. In order to suppress bouncing of the cylindrical plate, a bearer letterpress is formed on the printing plate. In other words, when a cylindrical plate having a bearer letterpress provided around substantially the entire circumference of the plate cylinder is used, the bearer letterpress remains in contact with the web without being separated from it during rotation of the cylindrical plate, so that bouncing of the cylindrical plate can be suppressed.

[0103] However, when the printing process is performed continuously for a relatively long time (when the printing press is operated for a relatively long time), the cylindrical plate may bounce slightly. The bouncing is thought to occur due to minute vibrations occurring in the cylindrical plate after the relief plate comes into contact with the web. The cylindrical plate forming the ink-printed portion having a large longitudinal length has a design relief plate having a large circumferential length, and ink loss is likely to occur due to bouncing that occurs after the relief plate comes into contact with the web. In particular, when a solid ink-printed portion (e.g., the above-mentioned first ink-printed portion 21) having a relatively large longitudinal length is printed by relief printing, the ink loss due to bouncing becomes noticeable.

[0104] In this regard, in the present disclosure, the axial length of the bearer relief 712 of the first printing plate 71 that prints the first bar portion 31 is greater than the axial length of the bearer relief 722 of the other printing plates (including the second printing plate 72). A bearer relief with a relatively large axial length has a large contact area with the web 1, so the first cylindrical plate 61 having such a bearer relief 712 is less likely to bounce. The first ink-printed portion 21 that is letterpress-printed using the first cylindrical plate 61 that is less likely to bounce is less likely to suffer from ink loss, and in particular, the first ink-printed portion 21 of one color is beautifully represented.

[0105] In addition, the circumferential length of each bearer relief plate 722 to 752 of the second to fifth printing plates is smaller in order corresponding to the longitudinal length of the second to fifth bar parts 32 to 35, respectively, so the second to fifth printing plates 72 to 75 have a lower bouncing suppression effect in order. However, the second to fifth ink-printed parts 22 to 25 printed by the second to fifth printing plates 72 to 75 have smaller longitudinal lengths in order, so that even if bouncing occurs, the ink loss of the image represented by each ink-printed part is less noticeable. Therefore, in the long-length printed matter A, the ink-printed parts constituting the design printed part 2 are beautifully expressed in appearance by relief printing. Furthermore, according to the preferred long-length printed matter of the present disclosure, there is also an effect that blocking is less likely to occur when wound into a roll.

[0106] <Example of use for long printed materials> In the long printed matter A, the image (design) displayed by the design printing section 2 is arranged repeatedly in the longitudinal direction. Such long printed matter A can be used as various labels, packaging materials, wrapping ribbons, etc. Examples of labels include conventionally known tubular labels, wrap-around labels, glue labels, in-mold labels, etc. Examples of packaging materials include overlap films, films for pillow packaging bags, films for pouch bags, etc.

[0107] For example, when converting a long printed matter A into a cylindrical label, the long printed matter A is first divided into long sheets each consisting of a single row of designs. Specifically, the long printed matter A is cut parallel to the longitudinal direction at the boundary of the design row (e.g., longitudinal non-image portion 2b) indicated by the thick arrow in Fig. 2 to obtain a long sheet including one row of designs. As shown in Fig. 2, in the case of a long printed matter A having four rows of designs in the lateral direction, four long sheets are obtained. Note that the right and left sides of the long printed matter A in the lateral direction (so-called ear portions) and the area including the bearer bar printed portion 3 are discarded.

[0108] FIG. 13 shows one long sheet C obtained by dividing the long printed matter A. FIG. 14 is a reference perspective view showing a process of forming a tubular label from the long sheet. As shown in FIG. 14, the long sheet C is rolled into a tube with the back side facing inward, and the left end C1 and the right end C2 in the short direction are overlapped and adhered to obtain a long tubular label continuous body D. This long tubular label continuous body D is cut parallel to the short direction at the long non-image portion 2b to divide it into each design, thereby obtaining one tubular label. The tubular label is one example of the use of the long printed matter A using the web 1 having heat shrinkability and / or self-stretchability.

[0109] In addition, by cutting the long sheet C shown in Fig. 13 in parallel to the short direction at the longitudinal non-image portion 2b to divide it into each design, individual labels can be obtained. These individual labels can be used as wrap-around labels, glue labels, in-mold labels, etc. The sheet-like label E is attached by wrapping it around an adherend 9 such as a container, as shown in Fig. 15. A label E attached in this manner is also called a wrap-around label. An adhesive is applied to the backside of at least one end E1 of the wrap-around label E, and as shown in Fig. 15(a), the one end E1 is attached to an adherend 9 such as a container, and the wrap-around label E is wrapped around the adherend 9. After that, as shown in Fig. 15(b), the backside of the other end E2 is attached to the front side of one end E1 (or the backside of the other end E2 is attached to the adherend 9), thereby obtaining a labeled article F. [Explanation of symbols]

[0110] 1. Web 2. Design and Printing Department 21 First Ink Printing Department 22 2nd Ink Printing Department 3 Bearer bar printing section 31 First Bar Section 32 2nd Bar Section 31W Width of first bar 32W Width of second bar 2a, 2b Non-image area A Long Print

Claims

1. A long strip-shaped web; a design row consisting of a plurality of design print portions repeatedly printed by letterpress in the longitudinal direction of the web, the design row being arranged in two or more rows in the lateral direction of the web; a bearer bar print portion disposed adjacent to any one of the design rows and extending in the longitudinal direction; the design printing section includes a first ink printing section which prints a first ink by letterpress printing, and a second ink printing section which prints a second ink by letterpress printing, The bearer bar printing section has a first bar section on which the first ink is letterpress printed, and a second bar section on which the second ink is letterpress printed, A long printed matter, wherein the width of the first bar portion is greater than the width of the second bar portion.

2. The long-length printed material according to claim 1 , wherein the first ink-printed portion is a background printed portion, and the second ink-printed portion is a printed portion showing an image including characters.

3. The web is made of a transparent sheet having heat shrinkability, 3. The long printed matter according to claim 1, wherein in the design row, a non-image portion having no design printed portion extends in the short side direction between adjacent design printed portions in the longitudinal direction.

4. The long printed matter according to claim 1 , wherein the bearer bar print portion is disposed between two adjacent design rows in the short side direction.

5. The first bar portion and the second bar portion are overlapped, The lengthwise printed product according to claim 1 , wherein an amount of ink applied per unit area of ​​the second bar portion is smaller than an amount of ink applied per unit area of ​​the first bar portion.

Images