WO2019128686A1

WO2019128686A1 - Liquid food packaging box

Info

Publication number: WO2019128686A1
Application number: PCT/CN2018/120112
Authority: WO
Inventors: 车国令
Original assignee: 国力丰（中国）包装有限公司
Priority date: 2017-12-29
Filing date: 2018-12-10
Publication date: 2019-07-04
Also published as: CN207773966U

Abstract

A liquid food packaging box, comprising a tetragonal top surface (1), a tetragonal bottom surface (2), and a plurality of side surfaces (3). The bottom surface (2) has a bonding line. The body portion of the packaging box is constituted by a whole composite packaging material. The top surface (1) has no bonding line. Each of the side surfaces (3) comprises three portions, i.e., a side-surface upper portion (31), a side-surface middle portion (32), and a side-surface lower portion (33). No bonding line exists between adjacent folding lines of the side-surface middle portions (32).

Description

Liquid food packaging box

Technical field

The utility model relates to the field of liquid packaging, in particular to a liquid food packaging box.

Background technique

Non-steam sterile liquid foods such as dairy drinks are typical fast-moving consumer goods, which rely on consumers' high-frequency and repeated use and consumption to achieve profit and value through the market volume of scale. Not only does its quality affect its sales, but its visual impact and versatile shape design also have an important impact on the quality of its sales and content.

Now, the design of the liquid packaging box such as the milk box mainly adopts the suture opening on the top surface and the bottom surface and the front surface of the box body. The design is unchanged for many years, especially the liquid packaging box which can face the market is single. The existing liquid packaging box in the market has the following defects: First, in order to enhance the supporting strength of the box body, the existing design generally increases the thickness of the paperboard, which undoubtedly increases the thickness of the cardboard and increases the weight of the box. , the production and logistics costs are increased; secondly, the top surface of the package is provided with a bonding line, and the cover or straw hole on the package can only be arranged on both sides of the bonding line, which seriously affects the design of the packaging container. Flexibility; third, due to the influence of the bonding line, the expansion of the shape, appearance, specifications and use of the package is severely limited by its own structure, lacking design flexibility and novelty; fourth, due to the presence of bonding wires In the printing of liquid food packaging boxes and post-filling, it is necessary to carry out the seam processing, which affects the production efficiency and increases the scrap rate.

Utility model content

The object of the present invention is to overcome the above problems in the prior art, and to provide a liquid food packaging box which improves the support strength of the box body and has no bonding line in the top surface and the side surface of the box body. The display surface is enlarged, and the molding and printing are facilitated, which reduces the scrap rate in the printing process.

The technical solution of the present invention is to provide a liquid food packaging box comprising a quadrangular upper top surface, a quadrangular lower bottom surface and a plurality of side surfaces, wherein the lower bottom surface has an adhesive line, and the box body of the packaging box The part is composed of a whole piece of packaging composite material, wherein the upper top surface has no bonding line, and the side surface comprises three parts of a side upper part, a side side middle part and a side lower part, and there is no adjacent two folding lines in the middle part of the side surface. Bonding line.

Further, when the cross-section of the package is quadrangular, there is no adhesive line between the adjacent two fold lines of the upper side and the lower side of the side, and the side faces at this time are all complete faces. When the cross section of the middle portion of the package is a pentagon, a hexagon, or a more polygonal shape, there is a bonding line between the adjacent two fold lines of the upper portion of the side and the lower portion of the side.

The packaging composite comprises an upper top region, a lower bottom region, a side region, a side ear region, a bonding edge and a folding line, the bonding edge comprising a longitudinal bonding edge and a lateral bonding edge, and the longitudinal bonding edge comprising a left longitudinal bonding The side and right longitudinal bonding edges, the lateral bonding edge comprises a lower bottom front lateral bonding edge and a lower bottom rear lateral bonding edge; the folding line divides the packaging composite into an upper top surface, a lower bottom surface, an upper top side ear, and a lower bottom The side ear and the side surface are located in the middle of the packaging composite material, the upper top side ear is located on the left and right sides of the upper top surface, and the lower bottom side ear is located on the left and right sides of the lower bottom surface, and the side surface includes a side upper part, a side middle part and a side lower part.

The same side longitudinal bonding edge is pasted and sealed and then folded into a longitudinal bonding line, and the longitudinal bonding line is coincident with the longitudinal folding line.

The lower front front lateral bonding edge and the lower bottom rear lateral bonding edge are pasted and sealed to form a transverse bonding line, and the horizontal bonding line coincides with the side edge of the lower bottom surface, and the lower bottom front laterally bonding the edge and the lower side The joint of the laterally bonded edges is bonded by a sealing strip which is further sealed by a sealing strip.

The lower bottom side ear comprises a lower bottom side ear top side and a lower bottom side ear folding line side, and a lower bottom side ear top side, a lower bottom side ear folding line side, a longitudinal folding line and a side of the lower bottom surface form a right angle trapezoid, wherein the lower side The bottom side of the bottom ear is parallel to the side of the lower bottom surface, the longitudinal fold line is perpendicular to the side of the lower bottom surface, and the lower bottom side of the lower bottom side ears are butted or have a gap therebetween.

N longitudinal folding lines are arranged on the middle of the side surface, so that the cross section of the middle portion of the package is N-shaped. When N is +∞, the middle portion of the package has a circular cross section.

Preferably, the ratio of the length of the fold line on the upper side of the side, the fold line in the middle of the side surface, and the fold line on the lower side of the side is 1: (0.1-20):1. The length ratio of the fold line is not limited to the above ratio, and is determined according to the actual required height of the case.

The upper top surface may be a sloped surface.

Compared with the prior art, the utility model has the following beneficial effects:

(1) There is no adhesive line on the top and side of the top of the package, the formed surface is complete, that is, the display surface is complete, the display is clearer and more complete, the design diversity is improved, the unity is avoided, and the appearance is more beautiful. High, especially when placing the box, there is no need to deliberately place the bond line behind;

(2) In the existing packaging box, the factors of the seam must be taken into account in the printing process. If there is a problem with the seam, the text with a small font may be blocked, or the characters and patterns may not be docked, and in the present application, Since there is no bonding line on the top and side of the top surface, the seaming process is simplified, the printing time is saved, the printing efficiency is improved, and the scrap rate is greatly reduced, especially in the shape of a quadrangular prism, which has five complete faces. Very easy to print, and enhance the appearance of the display and the aesthetics of the shelf;

(3) The lower bottom side ear is provided with a bonding line, and the lower bottom side ear is located on the lower bottom surface of the packaging box, so that the center of the box body is moved downward, and the lower bottom surface can be protected, thereby enhancing the bearing capacity of the entire box body. , easy to transport, and effectively save transportation costs;

(4) There is no adhesive line on the top surface of the package, and a larger opening can be designed to place the straw or set the cover;

(5) The adhesive edge is designed on the side of the box body, and the bonding line and the folding line are coincident. Compared with the ordinary packaging box, the supporting force of the packaging box is strengthened, and under the same pressure, the packaging box of the present application is stacked. Higher, and similarly, at the same stack height, the packaging and required protection costs of the present application are lower;

(6) The bottom and bottom sides of the bottom of the box are butted or have a certain gap, which improves the stability of the bottom of the package and greatly improves the stability of the package.

DRAWINGS

Figure 1 is a schematic view showing the structure of a package having a quadrangular cross section in the middle;

Figure 2 is a left side view of Figure 1;

Figure 3 is a bottom view of Figure 1;

Figure 4 is an expanded view of Figure 1;

Figure 5 is a schematic view showing the structure of a package having a circular cross section in the middle;

Figure 6 is an expanded view of Figure 5;

Figure 7 is a schematic structural view of a package having a octagonal cross section in the middle;

Figure 8 is an expanded view of Figure 7;

Figure 9 is an optimized structure of Figure 7.

In the figure: 1 upper top surface; 2 lower bottom surface; 3 side surface; 31 side upper part; 32 side middle part; 33 side lower part; 4 longitudinal bonding line; 401 left longitudinal bonding edge; 402 right longitudinal bonding edge; 501 lower bottom Lateral front bonding edge; 502 lower bottom lateral rear bonding edge; 6 folding line; 7 upper top side ear; 8 lower bottom side ear; 801 lower bottom side ear top side; 802 lower bottom side ear folding line side.

Detailed ways

In order to further explain the technical means and functions of the present invention for achieving the intended utility model, the following detailed description of the specific embodiments, structures, features and functions according to the present invention will be described in conjunction with the accompanying drawings and preferred embodiments. as follows:

Example 1

A liquid food packaging box, as shown in Figures 1-4, comprises a quadrilateral upper top surface 1, a quadrangular lower bottom surface 2 and a plurality of side surfaces 3, wherein the package shown in Figures 1-3 is shown in Figure 4. The monolithic packaging composite is folded, and the packaging composite may be part of a continuous web or a single sheet. The lower bottom surface 2 of the package is provided with a bonding line. The side 3 includes a side upper portion 31, a side central portion 32 and a side lower portion 33, wherein there is no bond line between adjacent two fold lines of the side central portion 32.

The upper top surface 1 has no bonding line, that is, the upper top surface 1 is a complete surface, and the surface may be provided as a flat surface or a sloped surface, and an opening of any size may be disposed at any position on the upper top surface.

As shown in FIG. 4, the packaging composite includes an upper top region, a lower bottom region, a side region, a side ear region, a bonding edge, and a fold line 6. The bonding edge includes a longitudinal bonding edge and a lateral bonding edge, wherein the longitudinal bonding edge includes a left longitudinal bonding edge 401 and a right longitudinal bonding edge 402, and the longitudinal bonding edge on the same side is adhesively sealed. The transverse bonding edge includes a lower bottom front lateral bonding edge 501 and a lower bottom rear lateral bonding edge 502, and a lower seal between the lower front front lateral bonding edge 501 and the lower bottom rear lateral bonding edge 502. The folding line 6 divides the packaging composite into an upper top surface 1, a lower bottom surface 2, an upper top side ear 7, a lower bottom side ear 8 and a side surface 3. The upper top side ear 7 is located on the left and right sides of the upper top surface 1, and the lower bottom side ear 8 is located below. On the left and right sides of the bottom surface 2, the upper top surface 1 is located in the middle of the packaging composite. The side surface 3 includes a side upper portion 31, a side surface middle portion 32, and a side surface lower portion 33, and the length ratio of the folding line at the upper side of the side surface, the folding line at the center of the side surface, and the folding line at the lower portion of the side surface is preferably 1: (0.1-20):1. In this embodiment, the side central portion 32 is provided with four folding lines, so that the cross section of the middle portion of the package is quadrangular.

The longitudinal bonding edges on the same side are butt-bonded and then folded in half to form a longitudinal bonding line. The longitudinal bonding line coincides with the longitudinal folding line of the side central portion 32, so the adjacent two bonding lines in the side central portion 32 There is no longitudinal bonding line between them, and there is no longitudinal bonding line between the adjacent two bonding lines of the side upper portion 31 and the side lower portion 33, so that the side of the package is a complete plane, which facilitates the printing of the package. And enhance the appearance of the display and the aesthetics of the shelf. By setting the longitudinal bonding line, the bearing capacity on both sides of the box body can be improved, and the packaging box has high anti-squeezing ability.

The lateral bonding front edge 501 and the lower bottom rear lateral bonding edge 502 are pasted and sealed to form a transverse bonding line, and the horizontal bonding line coincides with the side of the lower bottom surface, so that there is no lateral direction on the side of the package. Bonding line. In this embodiment, a sealing strip bonding edge 503 is disposed at the bottom of the lower bottom rear bonding edge 502, and a sealing strip is disposed at the sealing strip bonding edge 503, and the lower bonding layer is laterally bonded to the bottom and laterally bonded to the lower substrate. The joints of the edges are bonded by a sealing strip which is further sealed by a sealing strip.

The underside ear structure formed by the above-described bonding manner of the longitudinal bonding edge and the lateral bonding edge is as follows. As shown in FIG. 3, the lower bottom side ear 8 includes a lower bottom side ear top side 801 and a lower bottom side ear fold line side 802, a lower bottom side ear top side 801, a lower bottom side ear fold line side 802, a longitudinal fold line and a lower bottom side. Formed a right-angled trapezoid. Wherein, the lower bottom side auricle side 801 is parallel to the side of the lower bottom surface, the longitudinal folding line is perpendicular to the side of the lower bottom surface, and the lower bottom side ear top side 801 of the two lower bottom side ears 8 are butted or have a gap. Through the above structural arrangement, the structure of the lower bottom side ear overlapping of the bottom surface of the existing packaging box is changed, so that the packaging box can be placed more stably, and the stability of the packaging box is improved.

The packaging composite material is filled and formed according to the folding line made by the device, the longitudinal bonding edge of the same side is pressed and pasted and sealed; the lower bottom front horizontal bonding edge 501 and the lower bottom rear lateral bonding edge 502 Press and seal and seal. After the longitudinal bonding edge is pasted and sealed, the upper and lower ends are respectively formed with upper top side ears 7 and lower bottom side ears 8, wherein the upper top side ears 7 are respectively folded to the sides and adhered to the side, and the lower bottom side ears 8 are respectively folded to the bottom. Bonding, at which point the package is molded. The folded lower bottom surface is as shown in FIG. 2, and the lower bottom surface 2 is provided with a longitudinal bonding line 4, and by folding the lower bottom side ear 8 and the lower bottom surface 2, the wear resistance and the anti-slip property of the lower bottom surface can be improved. The lower bottom surface is pierced to protect the lower bottom surface.

Example 2

As shown in FIG. 5 and FIG. 6, different from Embodiment 1, N longitudinal fold lines are provided on the middle of the side surface. When N is +∞, the shape of the cross section of the package is eight sides from top to bottom. Shape, circle and octagon, that is, the cross section in the middle of the box is circular. It should be noted that the circle is composed of an infinite number of line segments, so it can be considered that the above-mentioned bonding line is not between the two folding lines, but coincides with the longitudinal folding line of the side central portion 32.

Others are the same as in the first embodiment.

Example 3

As shown in Fig. 7 and Fig. 8, unlike the first embodiment, the cross-sectional shape of the central portion of the side of the package is octagonal, and at this time, there is no adhesion between the adjacent two fold lines of the side central portion 32 of the package. There are adhesive lines between the lines, the adjacent upper fold lines of the side upper portion 31 and the side lower portion 33.

Others are the same as in the first embodiment.

Example 4

Different from the first embodiment, when the package of the present application cuts the slice material, the crease corresponding to the upper top surface can be cut to form a package as shown in FIG.

Others are the same as in the first embodiment.

The present invention has been described above with reference to the preferred embodiments, but the scope of the present invention is not limited thereto, and various modifications may be made thereto and equivalents may be made without departing from the scope of the present invention. Replacing the components therein, as long as there is no structural conflict, the technical features mentioned in the various embodiments may be combined in any manner, and any reference numerals in the claims should not be regarded as limiting the rights involved. It is required that the embodiment be regarded as exemplary and not limiting, from any point of view. Therefore, all technical solutions falling within the scope of the claims are within the scope of the invention.

Claims

A liquid food packaging box comprising a quadrangular upper top surface (1), a quadrilateral lower bottom surface (2) and a plurality of side surfaces, the lower bottom surface (2) having an adhesive line, and the box body portion of the packaging box is composed of a monolithic package composite composition, characterized in that the upper top surface (1) has no bonding line, and the side surface comprises a side upper portion (31), a side central portion (32) and a side lower portion (33), wherein There is no bond line between adjacent two fold lines of the middle side (32).
The liquid food package according to claim 1, wherein an adhesive line is provided between adjacent ones of the side upper portion (31) and the side lower portion (33).
The liquid food package according to claim 1, wherein when the cross section of the middle portion of the package is a quadrangle, the adjacent upper fold lines of the side upper portion (31) and the lower side portion (33) are non-sticky. In line, the sides at this time are all complete faces.
The liquid food package according to claim 1, wherein said packaging composite comprises an upper top region, a lower bottom region, a side region, a side ear region, a bonding edge and a folding line (6), and the bonding edge comprises The longitudinal bonding edge and the lateral bonding edge comprise a left longitudinal bonding edge (401) and a right longitudinal bonding edge (402), the lateral bonding edge comprising a lower bottom front lateral bonding edge (501) and a lower The bottom laterally bonding edge (502); the folding line of the package divides the packaging composite into an upper top surface (1), a lower bottom surface (2), an upper top side ear (7), a lower bottom side ear (8), and a side surface. The upper top surface is located in the middle of the packaging composite material, the upper top side ears (7) are located on the left and right sides of the upper top surface (1), the lower bottom side ears (8) are located on the left and right sides of the lower bottom surface (2), and the side surfaces include the upper side portions (31) , the middle side (32) and the lower side (33).
The liquid food packaging according to claim 4, wherein the same side longitudinal bonding edge is pasted and sealed and then folded to form a longitudinal bonding line, and the longitudinal bonding line is coincident with the longitudinal folding line.
The liquid food packaging box according to claim 4, wherein the lower bottom front lateral bonding edge and the lower bottom rear lateral bonding edge are pasted and sealed to form a transverse bonding line, a transverse bonding line and a lower bottom surface. The sides of the bottom are coincident, and the joints of the lower front front adhesive edge (501) and the lower bottom rear lateral adhesive edge (502) are bonded by a weather strip.
The liquid food package according to claim 5, wherein said lower bottom side ear (8) comprises a lower bottom side ear top side (801) and a lower bottom side ear fold line side (802), and a lower bottom side ear top side ( 801), the lower bottom ear fold line edge (802), the longitudinal fold line and the side of the lower bottom surface form a right angle trapezoid, wherein the lower bottom side ear top edge (801) is parallel to the side of the lower bottom surface, and the longitudinal fold line is perpendicular to the lower side The side edges of the bottom surface are butted or gapped between the lower bottom side ear edges (801) of the lower bottom side ears (8).
The liquid food packaging box according to claim 1, wherein N longitudinal folding lines are arranged on the central portion of the side surface, so that the cross section of the middle portion of the packaging box is N-shaped;

When N is +∞, the middle portion of the package has a circular cross section.
The liquid food package according to claim 1, wherein a length ratio of the fold line on the upper side of the side surface, the fold line in the middle of the side surface, and the fold line on the lower side of the side surface is 1: (0.1-20):1.
A liquid food package according to claim 1, wherein said upper top surface (1) is a sloped surface.