JP5703665B2 - Paper container - Google Patents

Description

  The present invention relates to a paper container such as a liquid paper container, and more particularly to a paper container having an ID code printed using laser light or ink jet.

  Conventionally, when producing a paper container such as a liquid paper container in which a beverage is stored, an ID code may be attached to the paper container. The ID code attached to such a paper container is used when a purchaser of the paper container applies for the campaign, and the purchaser inputs this ID code on the Internet to apply for the campaign.

  The ID code attached to the paper container is generally printed using an ink jet or printed by irradiating a laser beam.

  However, when the ID code is printed on the paper container, there is a problem that the ID code is easily recognized by a person other than the purchaser depending on the position of the ID code printed on the paper container.

JP 2007-161291 A

  The present invention has been made in view of such points, and an object of the present invention is to provide a paper container having an ID code that cannot be easily recognized by anyone other than the purchaser.

The present invention provides a paper container having a body portion, a bottom portion, and an upper portion, wherein the upper portion is located between a pair of opposed inclined plates and the inclined plates, and is paired between the inclined plates. Each fold portion includes a pair of fold lines formed of two straight lines that intersect with each other, and has a plurality of characters or numbers that can be visually recognized on the outer surface of the fold portion. An ID code including information for specifying a paper container is formed, and each character or number is arranged across the folding line on the folding line , thereby making it impossible to confirm each letter or number from the outside . This is a paper container.

The present invention provides a paper container having a body portion, a bottom portion, and an upper portion, wherein the upper portion is located between a pair of opposed inclined plates and the inclined plates, and is paired between the inclined plates. Each fold portion includes a pair of fold lines formed of two straight lines that intersect with each other, and has a plurality of characters or numbers that can be visually recognized on the outer surface of the fold portion. An ID code including information for identifying the paper container is formed, and a plurality of letters or numbers constitutes a letter or a set of numbers, and the letter or the number set is arranged on the folding line across the folding line , This makes it impossible to confirm the lump of letters or numbers from the outside .

  The present invention is the paper container in which each character or number is printed on the outer surface of the folded portion by laser light.

  The present invention is a paper container in which each character or number is printed on the outer surface of the folding portion by ink jetting.

  As described above, according to the present invention, it is possible to prevent a person other than the purchaser from easily recognizing the ID code provided on the paper container.

FIG. 1 is an enlarged view of a folding portion showing a paper container according to a first embodiment of the present invention. FIG. 2 is a perspective view showing a paper container. FIG. 3 is a view showing a blank formed by punching a packaging material. FIG. 4 is a view showing a packaging material for producing a paper container according to the first embodiment of the present invention. FIG. 5 is a view showing a packaging material for producing a paper container according to the second embodiment of the present invention. FIGS. 6A and 6B are diagrams showing a system for producing printed matter.

DESCRIPTION OF EXEMPLARY EMBODIMENTS First Embodiment Hereinafter, an embodiment of the invention will be described with reference to the drawings.

  FIGS. 1 to 4 and FIGS. 6 (a) and 6 (b) are views showing a paper container according to the present invention, for example, a gable top type paper container.

  First, a paper container according to the present invention, for example, a gable top type paper container will be described.

  As shown in FIG. 2, such a paper container 1 is a liquid paper container that stores a liquid such as a beverage therein.

  As shown in FIG. 2, the paper container 1 is a paper bell-top type paper container 1, and has a square cylindrical body 2, a square plate-shaped bottom 5, and a top part 7 of a gobel top. Yes.

  Among these, the top part 7 of the gable top type has a pair of opposed inclined plates 3 and 3 and a pair of folding parts 6 and 6 which are located between the inclined plates 3 and 3 and are folded between the inclined plates 3 and 3. doing. The pair of inclined plates 3 and 3 are provided with margins 4 and 4 at their upper ends, and the pair of inclined plates 3 and 3 are bonded to each other by the margins 4 and 4 provided at their upper ends.

  In such a paperbell type paper container 1, the margins 4, 4 are pulled apart from each other and the upper part 7 is opened, so that contents such as a beverage can be taken out from the paper container 1.

  The paperbell type paper container 1 is manufactured by assembling a blank 1a as shown in FIG.

  As will be described later, the blank 1a is obtained by punching a packaging material 10 having a desired layer structure. The blank 1a includes a body panel 2a corresponding to the body 2 of the paper container 1, a bottom panel 5a corresponding to the bottom 5, an inclined plate panels 3a and 3a corresponding to the pair of inclined plates 3 and 3, Folding part panels 6a and 6a corresponding to the pair of folding parts 6 and 6 that are folded between the pair of inclined plates 3 and 3 are provided.

  Further, in the blank 1a shown in FIG. 3, margins 4 and 4 are provided on the respective inclined plate panels 3a and 3a.

  Moreover, in the blank 1a, the printing area 9 is formed in one folding part panel 6a of the pair of folding part panels 6a and 6a. And in this printing area | region 9, ID code 8A containing the information which specifies the paper container 1 obtained with the said blank material 1a is formed by irradiating a laser beam and printing.

  Next, with reference to FIGS. 1A, 1B, and 3, the ID code 8A that is formed on the folding portion panel 6a corresponding to the folding portion 6 and includes information for specifying the paper container 1 will be described in detail.

  As described above, each folding part 6, 6 is folded between a pair of inclined plates 3, 3. In this case, each folding part 6, 6 is a pair of folding lines 6b composed of two straight lines intersecting each other, It is folded inside between the pair of inclined plates 3 and 3 through 6b.

  That is, as shown in FIGS. 1A and 1B and FIG. 3, a pair of folding lines 6 b and 6 b are formed in each folding panel 6 a and 6 a corresponding to the folding parts 6 and 6, and ID The cord 8A is provided in the vicinity of the pair of folding lines 6b and 6b in one folding section panel 6a.

  In this case, the ID code 8A is composed of a plurality of characters or numbers 8, and each character or number 8 is arranged along the folding lines 6b, 6b, preferably each character or number 8 is a folding line 6b, 6b. They are arranged so as to cross each other (FIG. 1 (a)).

  On the other hand, as shown in FIG. 1B, two or three letters or numbers 8 may be formed as one lump, and the lump of letters or numbers 8 may be arranged on the folding lines 6b and 6b.

  In FIGS. 1 (a) and 1 (b), only numbers are shown as characters or numbers 8 for convenience, but the ID code 8A may be formed only by characters. 8A may be formed.

  Next, the packaging material 10 for forming the blank 1a will be described. As described above, the blank 1a is obtained by punching the packaging material 10. As shown in FIG. 4, the packaging material 10 includes a paper base material 14A, a non-black print layer 12 formed on the paper base material 14A, and a black ink layer formed on the non-black print layer 12. 11 has a layer structure.

  Among these, the paper base 14 </ b> A is composed of polyethylene layer (PE layer) 13 / paper material 14 / polyethylene layer (PE layer) 15. As the paper base material, a general laminate can be used. Specific examples include PE / paper material, PE / paper material / PE, PE / paper material / PE / PET / PE, PP / paper material, PP / paper material / PP, and the like. High density polyethylene, medium density polyethylene, low density polyethylene, and linear low density polyethylene can be used for PE. As the paper material 14, those having formability, bending resistance, rigidity, waist, strength and the like can be used.

  Specifically, the paper material 14 is a main strength material, and various paper materials such as bleached or unbleached paper material with strong side properties, pure white roll paper, kraft paper, paperboard, processed paper, milk cardboard, and the like are used. Can do. The paper material 14 may be a stack of a plurality of these paper materials.

Moreover, the paper material 14 to be used can use a basis weight of 80 to 600 g / m ² , preferably a basis weight of 100 to 450 g / m ² . The paper material 14 has a thickness of 110 to 860 μm, preferably 140 to 640 μm.

  Further, in the printing region 9 of the packaging material 10, YVO 4 laser light is irradiated in a pattern on the black ink layer 11. In this case, the black ink layer 11 is sublimated by the laser beam to form the opening 8a, and the non-black print layer 12 located below the black ink layer 11 is exposed to the outside through the opening 8a.

  Thus, the non-black print layer 12 exposed to the outside through the opening 8a of the black ink layer 11 forms an ID code 8A composed of a plurality of characters or numbers 8.

  As described above, the ID code 8A made up of a plurality of characters or numbers 8 is formed on one folded part panel 6a of the blank 1a. For this reason, when the paper container 1 is produced by assembling the blank material 1a, the ID code 8A is located in one of the folding portions 6, and therefore it is difficult to confirm the ID code 8A from the outside in the state of the paper container 1. .

  In particular, when each character or numeral 8 constituting the ID code 8A is arranged so as to intersect with the folding line 6b of the folding panel 6a, the pair of inclined plates 3 and 3 are slightly expanded and the inside of the folding section 6 is visually observed. However, it is impossible to confirm each character or number 8 from the outside (FIG. 1A).

  Further, when a group of characters or numbers 8 constituting the ID code 8A is arranged along the folding line 6b, even if the end of the group of characters or numbers 8 can be confirmed from the outside, the group of characters or numbers 8 It is difficult to confirm the whole from the outside (FIG. 1 (b)).

  However, by opening the upper part 7 of the paper container 1, the ID code 8A on the folding part 6 can be easily confirmed from the outside.

  As described above, since the ID code 8A cannot be easily confirmed from the outside in the state of the paper container 1, it is possible to prevent the ID code 8A from being made known to a third party.

  In the above-described embodiment of the present invention, the layer structure of the packaging material 10 is PE layer 15 / paper material 14 / PE layer 13 / non-black print layer 12 / black ink layer 11; The ID code 8A is formed by irradiating the laser beam. In this case, the packaging material 10 is a printed matter having the ID code 8A.

  Moreover, although the blank material 1a is obtained by punching out the packaging material 10, this blank material 1a also becomes a printed matter having the ID code 8A.

  Next, the non-black print layer 12, the black ink layer 11, and the YVO4 laser beam will be described in detail below.

(Non-black printing layer 12)
The non-black print layer 12 includes a print layer 12 containing an ink pigment other than the black ink pigment of the black ink layer 11 described later.

  As such a non-black print layer 12, a print layer containing an ink pigment such as cyanine blue, carmine 6B, or disazo yellow can be considered.

(Black ink layer 11)
The black ink layer 11 is a printing layer containing a black ink pigment, and examples of such a black ink pigment include ink pigments such as carbon and carbon black.

(YVO4 laser light)
As described above, YVO4 laser light is irradiated to a desired portion of the black ink layer 11, and the portion of the black ink layer 11 is removed to form an ID code 8A (FIG. 4).

  The laser beam used in the present invention is a single mode YVO4 laser beam. Single-mode laser light is laser light having a single peak and is suitable for fine processing because the focus is reduced.

  The YVO4 laser is a kind of YAG laser, and the wavelength of the laser beam is 1064 nm, and it is difficult to be absorbed by colors other than black. However, it takes a long time for printing, and printing accuracy is lowered, which is not preferable.

<Laser printing conditions>
The most important conditions for laser printing are output, scanning speed, and pulse frequency, but the laser output device capability, printing area, black ink material, required printing time, required symbol grade, etc. Since the laser printing conditions differ depending on the range, the range cannot be specifically limited.

  When it is desired to increase the laser printing speed, the output is increased to increase the scanning speed. However, if the scanning speed is too high, the scanning accuracy is deteriorated and the printed matter is complicated.

  When it is desired to improve the finish of the laser printed matter, the output can be reduced to lower the scanning speed, but the printing time becomes longer.

  The pulse frequency varies depending on the black pigment material of the black ink layer 11 so that ink can be removed most effectively. Since the pulse frequency is generally not a value that fluctuates so much, when determining the laser printing conditions, an appropriate frequency is initially set.

  In selecting the laser printing conditions, the laser printing test was performed by trying several combinations of output and scanning speed while verifying the symbol of the laser printed matter with a verification machine, and the printing time and grade close to the desired one were obtained. After that, the output and the scanning speed are fixed, the frequency is changed in several ways, laser printing is attempted, and the laser printed matter is verified. Finally, fine adjustment of output and scanning speed is performed to select the most suitable laser printing conditions.

  In determining suitable laser printing conditions, the most important factor is contrast, and most laser print grades depend on the contrast grade.

  Next, a method for producing a printed material having such a configuration will be described with reference to FIGS.

  Here, FIGS. 6A and 6B are diagrams showing a printed material production system.

  6 (a) and 6 (b), a rolled paper base material 14A composed of a PP layer 13 / paper material 14 / PP layer 15 is mounted on the supply unit 21. ing.

  As shown in FIGS. 6 (a) and 6 (b), the paper base 14A is fed out from the supply unit 21, and printing is performed by the offset printing unit 22 on the PE layer 13 of the paper base 14A. A print layer 12 is formed.

  In this case, the non-black print layer 12 is formed in the print area 9 corresponding to at least the folded-in panel 6a.

  Next, a black ink layer 11 containing a black ink pigment is formed on the non-black print layer 12 in the print region 9 formed on the paper substrate 14A.

  In this way, the paper base material 14A in which the non-black print layer 12 is formed at least on the print region 9 of the paper base material 14A and the black ink layer 11 is formed on the non-black print layer 12 is then laser marker. 23.

  The laser marker 23 irradiates the black ink layer 11 with YVO4 laser light in a pattern, thereby sublimating the black ink layer 11 to form the black ink layer 11 patterned opening 8a. As a result, the non-black print layer 12 that is the base of the black ink layer 11 appears outside through the opening 8a of the black ink layer 11, and the non-black print layer 12 exposed outside through the opening 8a Characters or numbers 8 constituting the ID code 8A are formed.

  In this way, a packaging material 10 having an ID code 8A composed of letters or numbers 8 is obtained.

  In this case, the ID code 8A of the packaging material 10 is an ID code that identifies the corresponding blank 1a and paper container.

  Next, the packaging material 10 reaches the punching device 24. In this punching device 24, the packaging material 10 is punched to obtain the blank material 1a for the paper container 1.

  Next, the blank material 1 a is conveyed by the conveyor 25 and then accumulated on the accumulation unit 26.

  As described above, according to this embodiment, when the ID code 8A including a plurality of characters or numbers 8 is attached to the packaging material 10 or the blank material 1a, the ID code can be easily and surely accurately using the YVO4 laser beam. 8A can be formed.

  A black ink layer 11 is provided on the paper substrate 14A, a non-black ink layer 12 is further provided on the black ink layer 11, and the black ink layer 11 is sublimated with YVO4 laser light so that the paper substrate 14A is exposed outwardly. You may expose to.

Second Embodiment Next, referring to FIG. 5, a second embodiment of a paper container according to the present invention, for example, a gobeltop type paper container, will be described.

  The second embodiment shown in FIG. 5 is different only in the layer structure of the packaging material 10, and the other structure is different from the first embodiment shown in FIGS. 1 to 4 and FIGS. 6 (a) and 6 (b). It is almost the same.

  As shown in FIG. 5, the packaging material 10 includes a paper base material 14A, a black ink layer 11 having a pattern shape including a black ink pigment formed in the printing region 9 of the folding panel 6a of the paper base material 14A, and a pattern. And a non-black print layer 12 formed in a portion other than the black ink layer 11 in the form of a plate.

  Among these, the paper base 14 </ b> A is composed of polyethylene layer (PE layer) 13 / paper material 14 / polyethylene layer (PE layer) 15. As the paper base material, a general laminate can be used. Specific examples include PE / paper material, PE / paper material / PE, PE / paper material / PE / PET / PE, PP / paper material, PP / paper material / PP, and the like. High density polyethylene, medium density polyethylene, low density polyethylene, and linear low density polyethylene can be used for PE. As the paper material 14, those having formability, bending resistance, rigidity, waist, strength and the like can be used.

  Specifically, the paper material 14 is a main strength material, and various paper materials such as bleached or unbleached paper material with strong side properties, pure white roll paper, kraft paper, paperboard, processed paper, milk cardboard, and the like are used. Can do. The paper material 14 may be a stack of a plurality of these paper materials.

Moreover, the paper material 14 to be used can use a basis weight of 80 to 600 g / m ² , preferably a basis weight of 100 to 450 g / m ² . The paper material 14 has a thickness of 110 to 860 μm, preferably 140 to 640 μm.

  Further, in the printing region 9 of the packaging material 10, the peripheral region YVO4 laser light including the black ink layer 11 is irradiated in a pattern. In this case, the black ink layer 11 is sublimated by laser light to form an opening 8a between the non-black printed layers 12, and the paper base 14A located below the black ink layer 11 is exposed to the outside through the opening 8a. To do.

  In this way, the ID code 8A composed of a plurality of characters or numerals 8 is formed by the non-black print layer 12 and the paper base material 14A exposed to the outside through the opening 8a.

  As described above, the ID code 8A made up of a plurality of characters or numbers 8 is formed on one folded part panel 6a of the blank 1a. For this reason, when the paper container 1 is produced by assembling the blank material 1a, the ID code 8A is located in one of the folding portions 6, so it is difficult to confirm the ID code 8A from the outside in the form of the paper container 1. .

  However, by opening the upper part 7 of the paper container 1, the ID code 8A on the folding part 6 can be easily confirmed from the outside.

  As described above, since the ID code 8A cannot be easily confirmed from the outside in the state of the paper container 1, it is possible to prevent the ID code 8A from being made known to a third party.

  In the embodiment of the present invention described above, the layer structure of the packaging material 10 is PP layer 15 / paper material 14 / PP layer 13 / non-black print layer 12 and black ink layer 11, and the black ink layer 11 has The ID code 8A is formed by irradiating the laser beam. In this case, the packaging material 10 is a printed matter having the ID code 8A.

  Moreover, although the blank material 1a is obtained by punching out the packaging material 10, this blank material 1a also becomes a printed matter having the ID code 8A.

DESCRIPTION OF SYMBOLS 1 Paper container 1a Blank material 2 Body part 2a Body part panel 3 Inclined board 3a Inclined board panel 5 Bottom part 5a Bottom panel 6 Folding part 6a Folding part panel 6b Folding line 7 Upper part 8 Character or number 8A ID code 9 Printing area 10 Packaging material 11 Black ink layer 12 Non-black printing layer 13 PE layer 14 Paper material 14A Paper base material 15 PE layer

Claims (4)

In a paper container having a trunk, a bottom, and an upper part,
The upper portion includes a pair of opposed inclined plates and a pair of folded portions that are located between the inclined plates and are folded between the inclined plates, and each folded portion is formed by two straight lines that intersect with each other. Including a pair of folding lines to be folded,
An ID code including a plurality of visually recognizable characters or numbers and information specifying the paper container is formed on the outer surface of the folded portion, and each character or number is arranged on the folding line across the folding line. This makes it impossible to confirm each letter or number from the outside . In a paper container having a trunk, a bottom, and an upper part,
The upper portion includes a pair of opposed inclined plates and a pair of folded portions that are located between the inclined plates and are folded between the inclined plates, and each folded portion is formed by two straight lines that intersect with each other. Including a pair of folding lines to be folded,
An ID code including a plurality of characters or numbers that can be visually recognized and including information for specifying the paper container is formed on the outer surface of the folded portion, and a plurality of characters or numbers constitute a set of characters or numbers. The paper container is characterized in that the lump of letters or numbers is arranged on the folding line so as to straddle the folding lines , thereby making it impossible to confirm the lump of letters or numbers from the outside .   The paper container according to claim 1 or 2, wherein each letter or number is printed on the outer surface of the folding part by laser light.   The paper container according to claim 1 or 2, wherein each letter or number is printed on the outer surface of the folding part by inkjet.

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