KR20210076572A - Paper packing box and method for manufacturing the same - Google Patents

Abstract

A paper packaging box related to the present invention is a paper box manufactured by wrapping a hard core frame box with an outer paper. A hard core frame structure box includes: a bottom part; a pair of first side portions extending in opposite directions from the bottom surface portion and formed to be erected around a pair of fold lines; and a pair of second side portions attached to both sides of the bottom part, and formed to be attached to both edges of the bottom part and the raised first side portion, respectively. The pair of first side portions may each include a receiving groove capable of accommodating the thickness of the pair of second side portions.

Description

Paper packaging box and its manufacturing method

The present invention relates to a paper packaging box and a method for manufacturing the same.

After being invented for writing, paper has also been expanded to be used for packaging objects. Packaging using paper is divided into a method in which paper is directly wrapped around an object, a method in which an object is placed in a bag or bag form so that it can be carried immediately, and a method in which a box having the shape of a container is produced.

There are various types of double paper boxes, and the manufacturing methods are also varied accordingly. As a kind of paper box, a box using light and strong corrugated cardboard was invented, and the corrugated cardboard box played an important role in the transportation field.

Another type of paper box, a set up box with a lid, was invented as a way to emphasize luxury while protecting fragile contents. On the other hand, because the setup box is handled and distributed as it is, it takes up a lot of space and has a high risk of being damaged during handling.

There is also a box (also called 'sabari box' in Korea) that is wrapped in hardboard paper with adhesive to prevent exposure of seams and emphasizes luxury. Among these boxes, there is an inner box and an outer box made of hard core and outer paper, respectively. Various packaging effects can be given through printing, and it is often used as an expensive product box because it enhances the morphological aesthetics.

As a technique used in the production of boxes using hard wicks, a method of making a box by forming a sheath on a sheet of hard wick using a half-knife and making the sheath become the outer edge, and using a plurality of cutters to apply a V (V) to the hard wick. There is a way to make a fold line by cutting it out so that it becomes a V-shaped cross section. The former method makes it difficult to save the angle because the outer edge becomes a double line, and the latter method can implement an accurate angle because the outer corner becomes a single line, but there is a disadvantage in that the esthetic is deteriorated by exposing the cut surface cut in the inner corner.

* Prior art

Korean Patent Publication No. 10-2011-0003606 (published on January 13, 2011)

Korean Patent Publication No. 10-2011-0125469 (published on November 22, 2011)

Korean Utility Model Registration No. 20-0420544 (Registered on June 27, 2006)

An object of the present invention is to provide a paper packaging box capable of minimizing deterioration in appearance due to exposure of a cut surface cut out from an inner corner while implementing an accurate angle, and a method for manufacturing the same.

The paper packaging box related to the present invention is a paper box manufactured by wrapping a hard core frame box with an outer paper, wherein the hard core frame box includes a bottom part; a pair of first side portions extending in opposite directions from the bottom surface portion and formed to be erected around a pair of fold lines; and a pair of second side portions attached to both sides of the bottom surface portion, each of which is formed to be attached to both edges of the bottom surface portion and both edges of the erected first side portion; The first side portion may include a receiving groove capable of accommodating the thickness of the pair of second side portions, respectively.

As an example related to the present invention, the receiving groove may include: a first cutting surface formed parallel to the edges of the bottom surface portion and the first side portion and formed by partial cutting in the thickness direction; and a second cutting surface formed at a predetermined angle with respect to the first cutting surface, and formed so that paper can be cut out by a combination with the first cutting surface.

As an example related to the present invention, the angle between the first cutting surface and the second cutting surface may be formed to be less than 90 degrees or 90 degrees.

As an example related to the present invention, the grain direction of the first side part and the grain direction of the second side part may be parallel to each other.

As an example related to the present invention, a line-type printing layer may be formed on the fold line.

As an example related to the present invention, the fold line includes a pair of edges generated by meeting a cut surface generated by V-cutting and an adjacent surface that is not cut, and the line-type printing layer is one of the pair of edges. It may be printed on at least one corner and the cut surface.

As an example related to the present invention, the line-type printing layer printed on the cut surface may be entirely formed on the cut surface.

As an example related to the present invention, the line-type printing layer printed on the cut surface may be printed from the edge to a predetermined depth.

As an example related to the present invention, the line-type printing layer may be formed by a color darker than the color of the inner surface of the hard wick.

A method for manufacturing a paper box related to the present invention is a method of manufacturing a paper box comprising the steps of forming a hard wick skeleton box, and wrapping the hard wick skeleton box with an outer paper, the steps of forming the hard wick skeleton box A first step of forming a bottom surface portion and a pair of first side portions extending from the bottom surface portion on the hard wick; and a second step of erecting the first side part with respect to the bottom part and attaching a pair of second side parts formed of the same material as the hard wick to both edges of the bottom part and the first side part, The first step may include: forming a pair of fold lines by V-cutting the hard wick to form a region where the bottom surface portion will be formed and a region where the first side portion will be formed; and turning the hard wick by 90 degrees to form a receiving groove capable of accommodating the thickness of the second side portion at the edge of the hard wick.

As an example related to the present invention, the first step may further include forming a line-type printing layer on the fold line.

According to the foldable paper packaging box related to the present invention, since the separate second side part is attached with the thickness of the second side part accommodated in the hard wick of the bottom part and the side part where the receiving groove is formed, the angle of the outside of the edge line is accurately measured and It can be implemented reliably, and it is possible to reduce the exposure of unnecessary parts of the cut surface of the hard wick even at the corner line inside the attached part. In addition, the attachment method by the separate second side part can secure structural rigidity compared to the case of assembling both the first side part and the second side part upright by the fold line.

According to an example related to the present invention, by forming the grain direction of the first side part and the grain direction of the second side part parallel to each other, when both the first side part and the second side part are erected by the fold line, the grain direction is 90 degrees As compared to making it, it is possible to minimize the deformation of the box.

According to another example related to the present invention, since the printed layer is included in the fold line positioned inside the box, even when the cut surface cut out by V-cutting is exposed, the printed layer can cover it. Accordingly, it is possible to realize an accurate right angle by applying the V-cutting, while effectively preventing the deterioration of the aesthetics of the inner corner portion.

1 is a perspective view showing an example of a paper packaging box 100 related to the present invention.
Figure 2 is a state before being completed with the paper packaging box 100 of Figure 1, an exploded perspective view showing the state before the hard core frame box and the outer paper are attached.
3 is an enlarged view of part III of FIG. 1 and a perspective view showing a corresponding part of the paper box manufactured in the conventional manner.
4 is a conceptual diagram sequentially showing the process of manufacturing a hard wick frame box in relation to the present invention.
5 is a conceptual diagram for comparison with a conventional example in terms of structural rigidity such as warping of a box completed in connection with the present invention.
6 shows embodiments of forming a receiving groove in relation to the present invention.
7 is a perspective view exemplarily showing embodiments according to regions in which a printed layer is formed on a fold line in relation to the present invention.
8 is a view conceptually showing the formation of a fold line and a printed layer in the process of transferring the hard wick by the roller in relation to the present invention.
9 is an exemplary view conceptually showing a method of forming a printed layer on a fold line in relation to the present invention.

Hereinafter, the present invention, a paper packaging box, and a manufacturing method thereof will be described in detail with reference to the accompanying drawings.

1 is an example of a paper packaging box 100 related to the present invention, and the top is opened and is used as a container or a packaging box, or shows a form that can be combined with other enclosures. 2 is a state before completion of the paper packaging box 100 of FIG. 1, and is an exploded perspective view showing a state before the hard wick skeleton box 110 and the outer paper 130 are attached.

According to these drawings, the paper packaging box 100 has a shape in which a hard wick skeleton box 110 to which a dark background color is applied to an inner surface is wrapped with an outer paper 130 . For convenience of discrimination, the outer surface of the outer paper 130 was treated with a colorless or bright color.

As shown in Figure 1, the hard wick skeleton box 110, the bottom surface portion 111, a pair of first side portions 112 erected on the basis of the fold line 121 with respect to the bottom surface portion 111, and the bottom surface portion (111) and a pair of second side portions 113 forming a right angle with respect to the first side portion 112 are provided. As shown in FIG. 2 , the second side part 113 is attached to the edge of the bottom part 111 and the edge of the first side part 112 , respectively. Accordingly, as shown in FIG. 1 , the second side part 113 contacts the bottom part 111 to form a first occlusal line 122 , and contacts the first side part 112 to form a second occlusal line 123 . Accordingly, the inner corners of the paper packaging box 100 become the fold line 121 , the first intersection line 122 , and the second intersection line 123 .

As shown in FIG. 2 , a V (V) cut is made between the bottom surface part 111 and the first side part 112 so that the first side part 112 can be set as the center of the fold line 121 with respect to the bottom surface part 111 . A groove 115 may be formed. The V-cutting groove 115 is in the form of removing a part of the hard wick, and when the first side part 112 is erected with respect to the bottom part 111, the outer edge of the fold line 121 is easily formed at exactly 90 degrees. .

Receiving grooves 117 for accommodating the thickness of the second side part 113 are formed on both edges of the bottom surface part 111 and the first side part 112 . The part where the second side part 113 and the bottom part 111 meet or the part where the second side part 113 and the first side part 112 meet by the receiving groove 117 is not exposed to the outside, and accordingly , from the outside, it is possible to implement a corner only by the edge of the bottom surface part 111 or the first side part 112 .

3 is an enlarged view (a) of the III part of FIG. 1 and a perspective view showing the corresponding part of the paper box (b) manufactured in the conventional manner. When there is a printed layer corresponding to the color or printed matter applied to the inner surface of the hard wick frame box 110, in the case of a paper box manufactured according to the manufacturing method of the present invention (a), the fold line 121, the first occlusion The line 122 and the second occlusal line 123 do not expose unnecessary portions of the cut surface of the hard wick. On the other hand, in the case of an existing box using only the V-cutting groove (b), the material or color of the cut surface is partially exposed due to the removal of the hard wick at the fold or occlusal lines 21, 22, 23, and the appearance or less aesthetically pleasing.

4 is a conceptual diagram sequentially showing the process of manufacturing a hard wick frame box in relation to the present invention.

Figure 4 (a) is a view of the hard wick (110'). As shown in Figure 4 (b), it is possible to form a first printed layer (P1) on the hard core (110'). The first printed layer P1 refers to the color, pattern, or surface material of the inner box to be implemented, and in the present disclosure, the fold line 121, the first occlusal line 122 and the second are implemented in a subsequent process. It is conceptually indicated to explain how much influence can be reduced and aesthetics can be increased by the application technology of the occlusal line 123 .

In this state, the formation of the V-cutting groove 115 is carried out for the purpose of dividing the bottom surface 111 and the first side part 112 described above and forming the fold line 121, and accordingly, FIG. 4(c) ), along with the first printed layer P1, a portion of the hard wick 110' was removed.

In this state, as shown in FIG. 4( d ), a line-type second printed layer P2 having a color corresponding to the first printed layer P1 is formed in the V-cutting groove 115 . The second printing layer P2 is implemented along the V-cutting groove 115 so that the cut surface by the V-cutting groove 115 has a different color, for example, the same color as the first printing layer P1. .

Next, the hard wick is rotated 90 degrees to form the receiving grooves 117 described above on both edges. For this, first, as shown in Fig. 4(e), the first cutting surface (also called 'half-knife cutting') by partial cutting in the thickness direction parallel to the edges of the bottom surface part 111 and the first side part 112 117a). Next, as shown in FIG. 4(f), a second cutting surface 117b in a horizontal direction is formed so that the paper can be cut out by combining with the first cutting surface 117a. The second cutting surface 117b may be implemented so that the cutter is horizontal or at a predetermined angle with the first cutting surface 117a.

4(e) and 4(f) show examples of using separate cutters and steps to form the first cutting surface 117a and the second cutting surface 117b. In addition, one cutter may be used in one step to form the first cutting surface 117a and the second cutting surface 117b. As such, a '-'-shaped cutter and a '│'-shaped cutter may be combined, or a '└'-shaped cutter may be used.

When the formation of the receiving groove 117 is completed, as shown in FIG. 4(g), in order to assemble the hard wick frame box 110, the first side part 112 is erected with respect to the bottom surface part 111. The adhesive (B) is applied to the receiving groove 117 before or after the first side part 112 is erected. Next, the second side portion 113 is seated in accordance with the receiving groove 117 to be bonded by the adhesive (B). As a result, as shown in FIG. 4(h) , the thickness of the second side part 113 is inserted into the receiving groove 117 , and is not exposed to the outer surface of the bottom surface part 111 or the first side part 112 . In this coupling method, not only the second side part 113 is not exposed at the outer edge portion of the first occlusal line 122 or the second occlusal line 123, but also the receiving groove 117 at the inner corner of the box is formed. The exposure of the cut surface due to the removal in the process of forming is also not accompanied fundamentally.

5 is a conceptual diagram for comparison with a conventional example in terms of structural rigidity such as warping of a box completed in connection with the present invention. That is, as shown in FIG. 5A , it can be assumed that the bottom surface portion 111 and the first side surface portion 112 have a grain in the same direction. At this time, the separately attached second side part 113 is cut parallel to the grain direction of the bottom surface part 111 or the first side part 112 . As a result, the hard wick frame box has the same grain direction as the first side part 112 and the second side part 112, effectively reducing deformation from the influence of the external environment (eg, impact or external force, humidity or temperature). can If the grain direction of the first side part 112 and the grain direction of the second side part 113 are different, when the first side part 112 is expanded, the second side part 113 is not expanded because the grain direction is different. Therefore, the shape of the box may be deformed according to the difference in the deformation rate, and this problem can be solved according to the present embodiment. As shown in Fig. 5 (b), if the first side part 112 and the second side part 113 are both erected with respect to one bottom surface part 111, the grain direction of the first side part 112 and the second Since the grain direction of the side part 113 forms 90 degrees, shape deformation may be caused by an external environment or a difference in the deformation rate of the first side part 112 and the second side part 113 .

6 shows embodiments of forming a receiving groove in relation to the present invention.

6(a) shows that the angle α1 between the first cutting surface 117a and the first cutting surface 117b constituting the receiving groove 117 is 90, and FIG. 6(b) shows the receiving groove 117 ), it is shown that the angle α2 between the first cutting surface 117a and the first cutting surface 117b is less than 90. In the former case, it is possible to induce accurate bonding, and in the latter case, it is possible to minimize the flow of the adhesive to be applied to the receiving groove, thereby minimizing the cleanliness of the workplace and cumbersome incidental work.

7 is a perspective view exemplarily showing embodiments according to regions in which a printed layer is formed on a fold line in relation to the present invention.

As shown in Fig. 7(a), the hard wick 110 having the first printed layer P1 exposes the cut surface 115a by the V-cutting groove 115, and the edge where the cut surface 115a and the adjacent surface meet. (115b) also generates.

As a method of forming the second printed layer P2 in the V-cutting groove 115, FIG. 7(b) shows that the entire V-cutting groove 115 is formed. 7(c) shows that the second printed layer P2 is formed only by a predetermined depth from the edge 115b. Even in this case, when the hard wick 110 is bent at 90 degrees with respect to the V-cutting groove 115 , the cut surface 115a on the inner side is the outer side (that is, the user direction) is rarely exposed.

7( d ) shows that the second printed layer P2 is also formed on the adjacent surface near the edge 115a together with the second printed layer P2 applied to the cut surface.

Since all of the second printed layers P2 of FIGS. 7(b) to 7(d) are formed along the V-cutting grooves 115, they can be regarded as a 'line-type printed layer'. In some cases, the second printing layer P2 may be in the form of a dotted line, a form in which a plurality of colors are combined, or a form in which a shiny pigment is used for emphasis.

8 is a view conceptually showing the formation of a fold line and a printed layer in the process of transferring the hard wick by the roller in relation to the present invention.

In this example, in order to form a fold line 120 having a V-cutting groove 115 in the hard wick 110 as a method to increase mass productivity, the hard wick 110 is transferred through the roll 200 and the cutter 210 seems to use At this time, the inkjet 220 is disposed at the rear end of the cutter 210 and the hard wick frame box 110 is continuously transferred by the roll 200 directly to the fold line 120 in the process of transferring the second printed layer (P2). can form. The simplification of equipment can be obtained by such a structure.

9 is an exemplary view conceptually showing a method of forming a printed layer on a fold line in relation to the present invention.

FIG. 9(a) shows that the second printing layer P2 is formed in the hard wick skeleton box 110 by spraying or spraying ink like the inkjet 220 . In this case, the dust generated on the cut surface of the V-cutting groove 115 does not adhere to the inkjet 220 , so it is excellent in terms of maintenance.

FIG. 9(b) shows that the contact-type coloring means 320 is used instead of the non-contact coloring means such as inkjet. A printed layer having a required area can be obtained by vertically transporting the contact-type coloring means 320 disposed along the V-cutting groove 115 and imbued with ink in the vertical direction or by inducing the transport in the longitudinal direction. In this case, the contact-type coloring means 320 may be in the form of a brush, a roll, or a continuously transferred thread.

In addition, unlike FIG. 9(a) or FIG. 9(b), a similar effect may be obtained by applying a transfer paper having a printed layer in advance to the V-cutting groove 115 and transferring it by the action of pressure, heat, or the like.

The paper packaging box and its manufacturing method described above are not limited to the configuration and method of the described embodiments. The above embodiments may be configured by selectively combining all or part of each of the embodiments so that various modifications can be made.

100: paper packaging box
110: hard wick skeleton box 111: bottom surface
112: first side portion 113: second side portion
115: V cutting groove 115a:
115b: edge 117: receiving groove
117a: first cutting surface 117b: second cutting surface
121: fold line 122: first occlusal line
123: second occlusal line 130: outer cover
200: roll 210: cutter
220: inkjet 320: contact-type coloring means
P1: first printed layer P2: second printed layer

Claims (15)

As a paper box manufactured by wrapping a hard wick skeleton box with an outer paper,
The hard wick skeleton box,
bottom part;
a pair of first side portions extending in opposite directions from the bottom surface portion and formed to be erected around a pair of fold lines; and
A pair of second side portions, each of which is attached to both sides of the bottom surface portion, is formed so as to be able to be attached to both edges of the bottom surface portion and both edges of the erected first side portion,
The pair of first side portions each include a receiving groove capable of accommodating the thickness of the pair of second side portions, the paper packaging box.
According to claim 1,
The receiving groove is
a first cutting surface formed parallel to the edges of the bottom surface portion and the first side portion and formed by partial cutting in a thickness direction; and
A paper packaging box comprising a second cutting surface formed at a predetermined angle with respect to the first cutting surface, and formed so that paper can be cut out by a combination with the first cutting surface.
3. The method of claim 2,
An angle between the first cut surface and the second cut surface is formed to be less than 90 degrees or 90 degrees, a paper packaging box.
According to claim 1,
A paper packaging box formed so that the grain direction of the first side part and the grain direction of the second side part are parallel to each other.
According to claim 1,
A paper packaging box in which a line-type printing layer is formed on the fold line.
6. The method of claim 5,
The fold line includes a pair of edges generated by the intersection of a cut surface generated by V-cutting and an adjacent surface that is not cut,
The line-type printing layer is printed on at least one edge of the pair of edges and the cut surface, a paper packaging box.
7. The method of claim 6,
The line-type printing layer printed on the cut surface is formed entirely on the cut surface, a paper packaging box.
8. The method of claim 7,
The line-type printing layer printed on the cut surface is printed from the edge to a predetermined depth, a paper packaging box.
6. The method of claim 5,
The line-type printing layer is formed by a color darker than the color of the inner surface of the hard wick, paper packaging box.
A method of manufacturing a paper box comprising the steps of forming a hard wick skeleton box, and wrapping the hard wick skeleton box with an outer paper,
The step of forming the hard wick skeleton box,
A first step of forming a bottom surface portion and a pair of first side portions extending from the bottom surface portion in the hard wick; and
A second step of erecting the first side part with respect to the bottom part and attaching a pair of second side parts formed of the same material as the hard wick to both edges of the bottom part and the first side part,
The first step is
forming a pair of fold lines by V-cutting the hard wick to form an area in which the bottom surface part will be formed and an area in which the first side part will be formed; and
Including the step of turning the hard wick 90 degrees to form a receiving groove that can accommodate the thickness of the second side portion on the edge of the hard wick,
A method for manufacturing a paper packaging box.
11. The method of claim 10,
The receiving groove is
a first cutting surface formed parallel to the edges of the bottom surface portion and the first side portion and formed by partial cutting in a thickness direction; and
A method of manufacturing a paper packaging box, comprising a second cutting surface formed at a predetermined angle with respect to the first cutting surface, and formed so that paper can be cut out by a combination with the first cutting surface.
12. The method of claim 11,
The angle between the first cutting surface and the second cutting surface is formed to be less than 90 degrees or 90 degrees, a method of manufacturing a paper packaging box.
11. The method of claim 10,
A method of manufacturing a paper packaging box formed so that the grain direction of the first side portion and the grain direction of the second side portion are parallel to each other.
11. The method of claim 10,
The first step is
The method of manufacturing a paper packaging box further comprising the step of forming a line-type printing layer on the fold line.
15. The method of claim 14,
The fold line includes a pair of edges formed by the intersection of a cut surface generated by V-cutting and an adjacent surface that is not cut, respectively,
The line-type printing layer is printed on at least one edge of the pair of edges and the cut surface, a method of manufacturing a paper packaging box.

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