Paper box easy to open

Abstract

The invention belongs to the technical field of paper boxes, and particularly relates to an easy-to-open paper box which is characterized in that a paper box body is made of white cardboard and comprises a front panel, one side of the front panel is connected with a left side plate, one side, away from the front panel, of the left side plate is connected with a rear panel, and one side, away from the left side plate, of the rear panel is connected with a right side plate; according to the paper box, the opening mode of the paper box body is the mode of sticking and tearing the adhesive tape, compared with a traditional zipper mode, when the paper box body is opened, the easy-to-tear effect is greatly improved, and meanwhile the problem that the paper box body is difficult to tear or poor in quality due to the traditional zipper mode is solved. According to the carton body opening mode, the adhesive tape is used at the opening position, the adhesive tape is attached to the inner face of the carton body, die cutting is not conducted on the carton body, the carton body cannot be damaged, and the appearance experience of the carton body is not affected.

Description

Technical Field

[0001] The invention belongs to the technical field of paper boxes, in particular to an easy-to-open paper box. Background Art

[0002] Paper box packaging is widely used in the packaging of various foods, such as biscuits, candies, chocolates, tea, etc. The materials of paper box packaging are divided into white cardboard, gray-bottom white board paper, white board paper, cardboard, double-sided paper and other types. These types of paper materials have the characteristics of moisture-proof, shock-proof, and anti-pollution, which can ensure the quality and freshness of food. In addition to food, paper box packaging can also be used to package various daily necessities, such as paper towels, sanitary napkins, household items, etc. These products are easily contaminated or worn by external objects, and paper box packaging can protect these products well.

[0003] Traditional paper boxes often use this "connect-break-connect-break-connect" opening method similar to a "zipper". Secondly, due to the performance differences of paper in the prior art, two abnormal situations will occur during the tearing process of the paper box. One situation is that it is not easy to tear, which not only causes damage to the paper box during the tearing process, causing the product in the paper box to be contaminated, but also affects the consumer's experience; the other situation is that it is particularly easy to tear, which will cause the product packaging to be damaged before it is sold, thereby increasing the merchant's cost and waste of resources. In addition, traditional paper boxes open in one direction, which increases the complexity of consumers' opening when used.

[0004] To this end, the present invention provides a paper box that is easy to open. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: the easy-to-open paper box of the present invention comprises a paper box body; the paper box body is made of white cardboard, the paper box body comprises a front panel, one side of the front panel is connected to a left side panel, the side of the left side panel away from the front panel is connected to a rear panel, and the side of the rear panel away from the left side panel is connected to a right side panel. The side of the front panel away from the left side panel is provided with a mouth, the two ends of the front panel are symmetrically connected to an inner layer closed top panel and an inner layer closed bottom panel, the two ends of the rear panel are symmetrically connected to a top panel and a bottom panel, and the top panel is provided with a tear tape.

[0007] Furthermore, the inner closed top panel is convex, and the inner closed bottom panel is trapezoidal.

[0008] Furthermore, four right-angled triangular notches are provided on both sides of the top plate, and the four notches are symmetrically distributed in groups of two about the central axis of the top plate, and the bottom plate is trapezoidal.

[0009] Furthermore, the top of the left side plate is connected to a first dustproof wing, the bottom of the left side plate is connected to a third dustproof wing, the top of the right side plate is connected to a second dustproof wing, and the bottom of the right side plate is connected to a fourth dustproof wing.

[0010] Furthermore, the first dustproof wing, the second dustproof wing, the third dustproof wing and the fourth dustproof wing are all designed in a trapezoidal shape.

[0011] Furthermore, the surfaces of the top plate and the bottom plate are coated with hot melt adhesive.

[0012] Furthermore, the tear tape is made of BOPP or PET.

[0013] Furthermore, the white cardboard of the paper box body is composed of surface paper, core paper and bottom paper.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The easy-to-open paper box described in the present invention is a paper box body opening method of the present application in the form of sticking and tearing tape. Compared with the traditional "zipper" paper box body opening, the easy-to-tear effect is greatly improved, and the problem of difficult tearing or quality of the paper box body in the traditional "zipper" opening method is avoided. The paper box body opening method of the present application is to use the sticky tearing tape in the opening position, and stick it on the inner surface of the paper box body, and do not die-cut the paper box body, so as not to damage the paper box body and affect the appearance experience of the paper box body. The above characteristics ensure that consumers will not have the problem of not being able to tear it open when tearing it; and avoid the phenomenon of damage to the paper box body during transportation and contamination of the product. The opening position of the paper box body of the present application, a horizontal depth design size is 8-12mm, b vertical depth design size is 6-10mm, compared with the two sizes of 2-4mm of the traditional paper box body, the width of the tearing tape is 4-10mm, which is more convenient to open by hand.

[0016] 2. The easy-to-open paper box of the present invention adopts white cardboard as the body of the paper box, and the white cardboard is composed of face paper, bottom paper and core paper. The large application of NBKP in the face paper can improve its strength. The large application of system recycling pulp in the core paper can not only reduce the cost, but also have good directionality, thereby improving the tearability of the paper box body. At the same time, the horizontal depth a of the paper box body is set at 8-12mm, and the vertical depth b is set at 6-10mm, which is more convenient to tear and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is an expanded view of an easy-to-open paper box of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the tearing tape in the present invention;

[0020] Figure 3 It is a structural schematic diagram of the second dustproof wing in the present invention;

[0021] Figure 4 It is a structural schematic diagram of the surface paper in the present invention.

[0022] In the figure: 1. Inner closed top panel; 2. First dustproof wing; 3. Top panel; 4. Second dustproof wing; 5. Front panel; 6. Left side panel; 7. Back panel; 8. Right side panel; 9. Inner closed bottom panel; 10. Third dustproof wing; 11. Bottom panel; 12. Fourth dustproof wing; 13. Paste; 14. Tear tape; 15. Face paper; 16. Core paper; 17. Bottom paper. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0024] like Figures 1 to 4 As shown, an easy-to-open paper box according to an embodiment of the present invention comprises a paper box body; the paper box body is made of white cardboard, and the paper box body comprises a front panel 5, one side of the front panel 5 is connected to a left side panel 6, the side of the left side panel 6 away from the front panel 5 is connected to a rear panel 7, and the side of the rear panel 7 away from the left side panel 6 is connected to a right side panel 8. A mouth 13 is provided on the side of the front panel 5 away from the left side panel 6, the two ends of the front panel 5 are symmetrically connected to an inner layer closed top panel 1 and an inner layer closed bottom panel 9, the two ends of the rear panel 7 are symmetrically connected to a top panel 3 and a bottom panel 11, and a tear tape 14 is provided on the top panel 3. The inner layer closed top panel 1 is convex, and the inner layer closed bottom panel 9 is trapezoidal. The top of the left side panel 6 is connected to a first dustproof wing 2, the bottom of the left side panel 6 is connected to a third dustproof wing 10, the top of the right side panel 8 is connected to a second dustproof wing 4, and the bottom of the right side panel 8 is connected to a fourth dustproof wing 12.

[0025] Specifically, four right-angled triangle notches are provided on both sides of the top plate 3, and the four notches are symmetrically distributed in groups of two about the central axis of the top plate 3, and the bottom plate 11 is trapezoidal. The first dustproof wing 2, the second dustproof wing 4, the third dustproof wing 10 and the fourth dustproof wing 12 are all designed in a trapezoidal shape. There is hot melt adhesive on the surface of the top plate 3 and the bottom plate 11. The material of the tear tape 14 is BOPP and PET. The white cardboard of the paper box body is composed of a face paper 15, a core paper 16 and a bottom paper 17.

[0026] When working, in the process of storage and transportation, the front panel 5, the left side panel 6, the right side panel 8, the bottom panel 11, the top panel 3 and the back panel 7 can be unfolded in sequence to form a flat shape, thereby greatly reducing the space occupancy rate; when the product needs to be packaged, it is only necessary to use an automatic packaging machine to fold the front panel 5, the left side panel 6, the right side panel 8, the bottom panel 11, the top panel 3 and the back panel 7 in sequence to package them into a completed product packaging box. When it is necessary to take the contents of the carton body, the carton body can be easily torn open from the position of the tear tape 14 to take out the internal product, and it can be torn in both directions. By using hot melt adhesive to seal the top panel 3 and the bottom panel 11 on the packaging machine, consumers can tear them from the tear tape 14 when using it. The design of the tear tape 14 can be opened in both directions, thereby replacing the traditional zipper knife; the effective design of the two-way tearing position can solve the problem that the opening position of the traditional carton body is inconvenient to open.

[0027] The raw material of the paper box body of the present invention is white cardboard, the basis weight of the white cardboard face paper 15 and the bottom paper 17 accounts for 10-25% of the base paper, and the basis weight of the core paper 16 accounts for 40-65% of the base paper. The production process of white cardboard includes pulping, slag removal, pulping, purification, molding, pressing, drying (steam temperature is 170-210 degrees Celsius), sizing, coating, and finally soft matte and drying to obtain the white cardboard. The white cardboard face paper 15 contains 65±5% of coniferous wood bleached sulfate pulp (NBKP) + 15±5% of bleached sulfate broadleaf pulp (LBKP) + 20% of broken paper; the core paper (16) contains 50-60% of chemical mechanical pulp and 40-50% of system circulation recycled pulp; the bottom paper 17 contains 45±5% of coniferous wood bleached sulfate pulp (NBKP) + 25±5% of bleached sulfate broadleaf pulp (LBKP) + 30% of broken paper. The large application of NBKP in the face paper 15 can improve its strength. The large application of system recycled pulp in the core paper can not only reduce the cost, but also have good directionality, thereby improving the tearability of the paper box body.

[0028] The paper box body opening method of the present application is in the form of sticking and tearing tape 14. When the paper box body is opened by the traditional "zipper" method, the tearing effect is greatly improved, and the problem of difficult tearing or quality of the paper box body in the traditional "zipper" opening method is avoided. The paper box body opening method of the present application is to use the sticking and tearing tape 14 in the opening position, and stick it on the inner surface of the paper box body, and do not die-cut the paper box body, so as not to damage the paper box body and affect the appearance experience of the paper box body. The above characteristics ensure that consumers will not have the problem of not being able to tear it open when tearing it open; and avoid the phenomenon of damage to the paper box body during transportation and contamination of the product. The opening position of the paper box body of the present application, a horizontal depth design size is 8-12mm, b vertical depth design size is 6-10mm, compared with the two sizes of 2-4mm of the traditional paper box body, the width of the tearing tape 14 is 4-10mm, which is more convenient for hand to pull open.

[0029] The horizontal depth a and vertical depth b of the paper box body were compared and tested:

[0030]

[0031] According to the above data, when the horizontal depth a reaches 14mm and the vertical depth b reaches 12mm, the paper box body is very easy to enter dust. Therefore, the horizontal depth a of the paper box body of the present application is set at 8-12mm, and the vertical depth b is set at 6-10mm.

[0032] Working principle: During storage and transportation, the front panel 5, left side panel 6, right side panel 8, bottom panel 11, top panel 3 and back panel 7 can be unfolded in sequence to form a flat shape, which can greatly reduce the space occupancy rate; when the product needs to be packaged, it is only necessary to use an automatic packaging machine to fold the front panel 5, left side panel 6, right side panel 8, bottom panel 11, top panel 3 and back panel 7 in sequence to package them into a completed product packaging box. When it is necessary to take out the contents of the paper box body, the paper box body can be easily torn open from the position of the tear tape 14 to take out the internal product, and it can be torn in both directions. By using hot melt adhesive to seal the top panel 3 and the bottom panel 11 on the packaging machine, consumers can tear them open from the tear tape 14 when using it.

[0033] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An easy-to-open paper box, comprising a paper box body; characterized in that: The paper box body is made of white cardboard, and comprises a front panel (5), one side of the front panel (5) is connected to a left side panel (6), a side of the left side panel (6) away from the front panel (5) is connected to a rear panel (7), and a side of the rear panel (7) away from the left side panel (6) is connected to a right side panel (8); A side of the front panel (5) away from the left side panel (6) is provided with a living opening (13); two ends of the front panel (5) are symmetrically connected to an inner closed top panel (1) and an inner closed bottom panel (9); two ends of the rear panel (7) are symmetrically connected to a top panel (3) and a bottom panel (11); and a tear tape (14) is provided on the top panel (3).

2. An easy-to-open paper box according to claim 1, characterized in that: The inner closed top panel (1) is convex, and the inner closed bottom panel (9) is trapezoidal.

3. The easy-to-open paper box according to claim 1, characterized in that: Four right-angled triangular notches are provided on both sides of the top plate (3), and the four notches are arranged in groups of two and symmetrically distributed about the central axis of the top plate (3). The bottom plate (11) is trapezoidal.

4. The easy-to-open paper box according to claim 1, characterized in that: The top of the left side plate (6) is connected to a first dustproof wing (2), the bottom of the left side plate (6) is connected to a third dustproof wing (10), the top of the right side plate (8) is connected to a second dustproof wing (4), and the bottom of the right side plate (8) is connected to a fourth dustproof wing (12).

5. The easy-to-open paper box according to claim 4, characterized in that: The first dustproof wing (2), the second dustproof wing (4), the third dustproof wing (10) and the fourth dustproof wing (12) are all designed in a trapezoidal shape.

6. The easy-to-open paper box according to claim 5, characterized in that: The surfaces of the top plate (3) and the bottom plate (11) are coated with hot melt adhesive.

7. The easy-to-open paper box according to claim 1, characterized in that: The tear tape (14) is made of BOPP or PET.

8. The easy-to-open paper box according to claim 1, characterized in that: The white cardboard of the paper box body is composed of surface paper (15), core paper (16) and bottom paper (17).

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