JPH10128889A - Single-faced corrugated fiberboard having high designability - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize the formation of a strain-free clear printed layer on a corrugated surface by a method wherein a corrugating medium, on one side of which a printed layer is formed, is corrugated and a linerboard is pasted to the side, on which no printed layer is formed, of the corrugating medium. SOLUTION: This single-faced corrugated fiberboard having a high designability is constituted so as to provide a uniformly clear printed layer to the tongued parts and grooved parts of the surface of a corrugated corrugating medium 2. The laminated structure of this highly designable designable single-faced corrugated fiberboard is a single-faced corrugated fiberboard 1, on the corrugated surface of the corrugating medium 2 of which the printed layer 4 is provided, which is obtained by bonding a linerboard 3 with the apexes of the corrugation formed on the corrugating medium 2 having the printed layer 4 provided in advance by printing. Due to the above-mentioned structure, the printed layer 4 is uniformly formed on the tongued parts and the grooved parts of the corrugation along the corrugation of the corrugating medium 2 so as to obtain a clear design. The printed layer has an arbitrary design such as a monochrome design, a multicolor tone design or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a single-faced corrugated cardboard excellent in design.

[0002]

2. Description of the Related Art Conventionally, as a single-sided corrugated cardboard having an excellent design, for example, as described in Japanese Utility Model Publication No. 57-23147, a single-sided corrugated cardboard is provided with a stamp at the top of the core. Alternatively, a single-sided cardboard having a three-dimensional appearance in which printing is applied to the top of the step other than the engraved part is known. However, in the case of the single-sided cardboard having the above configuration, since printing is performed on the core surface after producing the single-sided cardboard, printing is performed only on the corrugated top of the core,
Since ink does not adhere to the concave portions of the waveform other than the step top portion and printing is not performed, there is a defect that a clear print layer cannot be formed and excellent design properties cannot be obtained.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a single-faced cardboard excellent in design in which a sharp printed layer having no distortion is formed on a surface on which a waveform is formed.

[0004]

Means for Solving the Problems A core having a printed layer formed on one surface is formed into a corrugated shape, and a liner is bonded to a surface of the core where the printed layer is not formed and a liner. Since the single-faced corrugated cardboard has high designability, clear printing can be performed on both the top and the concave portion of the corrugation formed by the core, so that a single-faced corrugated cardboard excellent in design can be obtained.

[0005] In the high-design single-sided cardboard box, the core is formed by laminating a nonwoven fabric layer via a thermoplastic resin layer on a surface on which the printing layer is provided.
The nonwoven fabric layer on the surface can give a Japanese design feeling.

In the high-design single-sided cardboard box, the pattern constituting the printing layer is formed by forming a pattern which is stretched in a direction orthogonal to a waveform formed on the core. Since a printed pattern free from distortion can be obtained when the above is produced, excellent design properties can be imparted.

In the high-design single-sided corrugated paper box,
The pattern constituting the printing layer is a multicolor line-printed pattern which is parallel to the waveform formed on the core and a plurality of colors are regularly repeated, and the repetition pitch of the multicolor line-printed pattern is cardboard. If the pitch of the line pattern is the same or substantially the same as the pitch of the waveform of the corrugated cardboard, when viewed from a direction perpendicular to the corrugated cardboard waveform, When a pattern which looks different in tone depending on the viewing angle is obtained, and the repetition pitch of the line printed pattern is substantially the same as the pitch of the corrugated cardboard, a pattern in which the color tone changes like a rainbow depending on the viewing angle is obtained.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a high-design single-sided cardboard of the present invention, FIG. 2 is a cross-sectional view showing a laminated structure of a first embodiment of a high-design single-sided cardboard, and FIG. 3 is a second embodiment of a high-design single-sided cardboard. FIG. 4 is a plan view showing a normal pattern printed on a high-design single-faced cardboard, FIG. 5 is a plan view showing a distorted pattern printed on a core, and FIG. FIG. 7 is a perspective view showing a line-printed pattern printed on a high-design single-sided cardboard, FIG. 7 is a plan view showing a pattern formed of the line-printed pattern, and FIG. 8 is a paper box made of the high-design single-sided cardboard of the present invention. FIG. 9 is a plan view showing a blank plate of a paper box, wherein 1 is a single-sided cardboard, 2, 2 ′.
Is a core, 2a is a nonwoven fabric layer, 2b is a thermoplastic resin layer, 2c is a paper layer, 3 is a liner, 4, 4 'is a printing layer, 4a, 4b, 4c is a line printing pattern, 10 is a top plate, 11a , 11b, 11c, 11d are outer plates, 12a,
12b, 12c, 12d are picture frames, 13a, 13b, 13c, 13d are inside plates, 14
a, 14b, 14c, and 14d represent bent pieces, 15 represents engagement pieces, and 16 represents cuts.

As shown in FIG. 1, the single-faced high-design corrugated cardboard of the present invention has a structure in which a corrugated central core 2 is provided with a uniform and sharp print layer 4 on the convex portions and concave portions on the surface thereof. As shown in FIG. 2, the laminated structure of the high-design single-sided cardboard according to the first embodiment of the present invention is such that the core 2 provided with the printing layer 4 is formed into a corrugated shape by printing beforehand, This is a single-faced cardboard 1 having a printed layer 4 provided on a corrugated surface of a core 2 obtained by bonding with a liner 3. With this configuration, the printed layer 4 is uniformly formed on the corrugated convex portions and concave portions along the corrugations of the core 2, so that a clear picture can be obtained. The printing layer 4 may be any single color pattern, multicolor color pattern, or the like.

As shown in FIG. 3, the laminated structure of the high-design single-faced cardboard according to the second embodiment of the present invention has a structure in which a nonwoven fabric layer 2a, a thermoplastic resin layer 2b, and a paper layer 2c are laminated. core
The print layer 4 is formed on the nonwoven fabric layer 2a of 2 ′.
Also in the case of this embodiment, since the printing layer 4 is uniformly formed on the convex portions and concave portions of the waveform along the waveform of the core 2 ', a clear picture can be obtained. In addition, the texture of the surface is improved by making the structure of the core 2 'as described above, so that a Japanese paper-like Japanese design feeling can be obtained.

Printing layer 4 provided on high-design single-sided cardboard
As shown in FIG. 4, it is necessary to form a printed layer 4 having no distortion when viewed from the front. If the printed layers printed on the cores 2 and 2 ′ have a normal pattern without distortion, the cores 2 and 2 ′ on which the printed layers are applied are formed into a corrugated form to produce a single-sided cardboard 1. , The printed layer printed on the core 2, 2 '
The pattern shrinks in the direction perpendicular to the 2 'waveform.
Therefore, as shown in FIG. 5, the printing layer to be printed on the cores 2, 2 ′ is a distorted printing layer 4 ′ stretched at a predetermined ratio in a direction orthogonal to the waveform of the cores 2, 2 ′. As a result, when the single-sided corrugated cardboard 1 is processed, the normal printed layer 4 having no distortion
Is obtained.

In the high-design single-sided cardboard of the present invention, as shown in FIG. 6, the printed layer 4 is a multicolor line-patterned pattern 4a, 4 which is regularly repeated with a predetermined width in parallel with the waveform of the single-sided cardboard.
It can also be formed by b, 4c. This line printing pattern 4a, 4
b, 4c, for example, as a multi-color line pattern in which the yellow line print pattern 4a, the red line print pattern 4b, and the blue line print pattern 4c are regularly repeated, the yellow line print The width of the pattern 4a, the width of the red line printing pattern 4b and the width of the indigo line printing pattern 4c are the same, and the line width of the yellow, red and blue indigo line printing patterns 4a, 4b, 4c Is set equal to the pitch of the waveform of the single-sided cardboard 1, or slightly larger than the pitch of the waveform of the single-sided cardboard 1, or is set slightly smaller. When viewed from a direction orthogonal to the waveform of the above, the printed layer 4 in which the color tone changes over the entire surface depending on the viewing angle can be obtained. In the latter case,
When viewed from a direction perpendicular to the waveform of the single-sided cardboard 1, the printed layer 4 whose color tone changes like a rainbow depending on the viewing angle can be obtained.

The line printing patterns 4a, 4b, 4c may be formed on the entire surface as shown in FIG. 6, or as shown in FIG. It is also possible to use a partial pattern consisting of a multicolor line pattern in which the line print pattern 4a, the red line print pattern 4b, and the blue line print pattern 4c are repeated regularly.
In the case of the printed layer 4 shown in FIG. 7, when the partial pattern is viewed from a direction orthogonal to the waveform, the partial color changes to yellow, red, and blue depending on the viewing angle, or the color tone is continuous like a rainbow. Since it is possible to make a pattern that changes in a timely manner, the design can be diversified.

The method for producing the high-design single-faced corrugated cardboard according to the present invention includes a method in which the core 2 ′ comprises the nonwoven fabric layer 2 a and the thermoplastic resin layer 2 b.
In the case of the configuration of the second embodiment in which the paper layer
After laminating 2c and nonwoven fabric layer 2a with thermoplastic resin layer 2b, a printing layer 4 is formed on the surface of nonwoven fabric layer 2a by printing, and then corrugated to form a corrugated cardboard or nonwoven fabric layer 2a. A printing layer 4 is formed by printing on the nonwoven fabric layer 2a surface of the laminate obtained by laminating the thermoplastic resin layer 2b on
A laminate of the nonwoven fabric layer 2a on which the printing layer 4 is formed and the thermoplastic resin layer 2b, and the paper layer 2a are combined with the nonwoven fabric layer 2a and the thermoplastic resin layer.
By feeding paper to a corrugator in a state where the paper layer 2a overlaps the thermoplastic resin layer 2b surface of the laminate with 2b, the nonwoven fabric layer 2a
At the same time as bonding the laminate of the resin layer 2b and the paper layer 2a to the paper layer 2a, it can be performed by any method of corrugating. In the case of the latter method, the nonwoven fabric layer 2a
Since printing is performed on the nonwoven fabric layer 2c surface of the laminate of the thermoplastic resin layer 2b and the thermoplastic resin layer 2b, printing can be easily performed by a conventional film printing machine, so that printing is easy.

Printed layer 4 of high-design single-sided cardboard of the present invention
Is formed by printing on the core 2, 2 'by gravure printing, flexographic printing, silk screen printing, etc., and as the ink, ordinary transparent or opaque ink, brilliant gold ink, silver ink , Pearl ink,
The use of high-color inks, temperature-measuring inks, luminous inks, and the like can reproduce diversified designs. When printing a pattern with the above ink, if a normal pattern is printed on the core 2, 2 ', the corrugation of the core 2, 2' causes the pattern to be in a direction orthogonal to the corrugated shape of the cardboard. As it will be a shrunk and distorted pattern, as described above, when printing the pattern on the core 2, 2 ', it is necessary to print with a distorted pattern stretched in the direction perpendicular to the corrugation of the cardboard is necessary.

The paper used for the cores 2 and 2 'constituting the high-design single-sided cardboard of the present invention is a paper having a high whiteness, for example, bleached pulp in order to enhance the printing effect. A suitable white liner is suitable. The thickness is 5
Those having 0 to 250 g / m ² can be used. The liner 3 may be a commonly used one, but it is preferable to use a white liner when it is used for a packaging box for food or the like.

The corrugated shape of the high-design single-faced corrugated cardboard of the present invention includes A flute, B flute, C flute, and E flute.
Since a flute or the like can be used, it may be appropriately determined depending on the use of the high-design cardboard. When used in a paper box, an E flute having a small step height is generally preferred, although it depends on the size of the box. The type of paper used as the core and liner is not limited, but the basis weight is 50 to 250 g / m ^2.
Can be used.

A paper box produced by using the high-design single-sided cardboard of the present invention is, for example, a rectangular parallelepiped having a printed layer provided on the upper surface shown in FIG. As shown in FIG. 9, the shape of the blank plate is such that outer and upper plates 10a and 11b, frame plates 12a and 12b, inner plates 13a and 13b and bent pieces 14a and 14b Connected via
Outer plates 11c and 11d and a frame plate 12c are provided on both left and right ends of the upper plate 10.
12d, inner plates 13c, 13d, and bent pieces 14c, 14d are respectively connected via folds, and engaging pieces 15 having cuts 16 are provided at both ends of the inner plates 13c, 13d. Consists of The outer plates 11c, 11d, the frame plates 12c, 12d and the inner plates 13c, 13d of the above blank plate are bent so as to be wound inward and bent pieces.
14c and 14d are bent outward so as to be parallel to the upper surface plate 10, and then the engagement pieces 15 extending at both ends of the inner plates 13c and 13d are bent inward, respectively, and the cuts 16 are engaged. After fixing, the outer plates 11a, 11b, the frame plates 12a, 12b and the inner plates 13a,
13b is bent so that the engaging piece 15 is involved, and the bent pieces 14a and 14b are bent outward so as to be parallel to the upper surface plate 10, whereby assembly is completed, and the paper box shown in FIG. 8 is obtained.

Since the paper box made of the high-design single-faced cardboard of the present invention is a single-sided cardboard, it is preferable to use an assembled paper box. It is also possible to make a box by pasting with glue, stapling or the like. However, gluing has a problem with adhesive strength, and stapling is not desirable in design. The shape of the paper box is arbitrary. In addition to paper boxes, it can be used for shelves and stands for displays.

[0020]

According to the present invention, a core having a printed layer formed on one surface is formed into a corrugated shape, and a liner is formed by laminating a surface of the core on which the printed layer is not formed and a liner. Since it is a single-sided corrugated cardboard, it is possible to print uniformly on the concave portion as well as on the top of the corrugation formed by the core, so that a single-sided corrugated cardboard with excellent design can be obtained. In the high-design single-sided cardboard box, the core has a structure in which a nonwoven fabric layer is laminated via a thermoplastic resin layer on a surface on which the print layer is provided, so that the nonwoven fabric layer on the surface provides a Japanese-style design feeling. Can be issued. In the high-design single-sided cardboard box, the pattern constituting the printing layer has a configuration in which a pattern that is stretched in a direction perpendicular to the waveform formed on the core is formed, thereby forming a single-sided cardboard. Since a printed pattern free from distortion can be obtained, excellent design properties can be imparted. In the high-design single-sided corrugated paper box, the pattern constituting the printing layer is a multi-color line-printed pattern that is parallel to a waveform formed on the core and has a plurality of tones that repeat regularly. By configuring the repetition pitch of the line print pattern to be the same as or substantially the same as the pitch of the corrugated cardboard waveform, the repetition pitch of the multicolor line pattern is the same as that of the cardboard when viewed from a direction orthogonal to the corrugated cardboard waveform. When the pitch is the same as the pitch of the waveform, a pattern that looks different in color depending on the viewing angle is obtained.When the repetition pitch of the multicolor line pattern is substantially the same as the pitch of the corrugated cardboard, a rainbow-like pattern is obtained depending on the viewing angle. Since the pattern changes in color tone, excellent design properties can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a high-design single-sided cardboard of the present invention.

FIG. 2 is a cross-sectional view showing a laminated structure of a high-design single-sided cardboard according to a first embodiment.

FIG. 3 is a sectional view showing a laminated structure of a high-design single-sided cardboard according to a second embodiment.

FIG. 4 is a plan view showing a normal pattern printed on high-design single-sided cardboard.

FIG. 5 is a plan view showing a distorted pattern printed on a core.

FIG. 6 is a perspective view showing a line printed pattern printed on a high-design single-sided cardboard.

FIG. 7 is a plan view showing a pattern composed of line printing patterns.

FIG. 8 is a perspective view showing an example of a paper box made of the high-design single-sided cardboard of the present invention.

FIG. 9 is a plan view showing a blank plate of a paper box.

[Explanation of symbols]

1 Single-sided corrugated cardboard 10 Top plate 2, 2 'Core 11a, 11b, 11c, 11
d Outer plate 2a Non-woven fabric layer 12a, 12b, 12c, 12
d Picture frame 2b Thermoplastic resin layer 13a, 13b, 13c, 13
d Inner board 2c Paper layer 14a, 14b, 14c, 14
d Folded piece 3 Liner 15 Engagement piece 4, 4 'Print layer 16 Cut 4a, 4b, 4c Multi-line printed pattern

Claims (4)

[Claims] 1. A structure in which a core having a print layer formed on one surface is formed into a corrugated shape, and a liner of the core on which the print layer is not formed is bonded to a liner. High design single-sided cardboard. 2. The high-design single-faced cardboard according to claim 1, wherein the core has a structure in which a nonwoven fabric layer is laminated via a thermoplastic resin layer on a surface on which the print layer is provided. 3. The high design quality according to claim 1, wherein the pattern constituting the printing layer is a distorted pattern stretched in a direction orthogonal to a waveform formed on the core. Single-sided cardboard. 4. A pattern forming the printing layer is a multi-color line printing pattern which is parallel to a waveform formed on the core and has a plurality of color tones which repeat regularly. Wherein the repetition pitch is the same or substantially the same as the pitch of the corrugated cardboard waveform.
2. The high-design single-faced cardboard according to 2.