Carton easy to tear and packaging method thereof

Abstract

The invention discloses an easy-to-tear carton which is characterized in that the easy-to-tear carton comprises a carton body and at least one easy-to-tear unit area, the easy-to-tear unit area is provided with at least one of a release coating, an adhesive separation layer and an easy-to-tear crack, and an overlapping area is arranged between the easy-to-tear unit area and an adhesive tape pasting area of the carton body. The invention further discloses a packaging method for implementing the easy-to-tear carton. The problems that an existing traditional corrugated paper box is inconvenient to detach and poor in experience feeling are effectively solved, and an existing zipper type easy-to-tear paper box high in cost is replaced. In the using process, the adhesive tape needs to be torn off, so that the adhesive tape on the carton is reduced, and recycling and reusing of the waste carton are facilitated.

Description

Technical Field

[0001] This invention relates to the field of cardboard boxes, and more particularly to an easy-tear cardboard box and its packaging method. Background Technology

[0002] Corrugated cardboard boxes are the most widely used packaging and shipping containers today. With the development of commerce, most cardboard boxes have become disposable items; after the packages are unpacked, the boxes become waste and are recycled for manufacturing.

[0003] Since most express delivery boxes are sealed with tape, people need to use external tools such as knives and scissors to open them, which are not always readily available, causing inconvenience and frustration. In recent years, to improve the user experience of opening packages, zippered easy-tear cardboard boxes, widely used in the express delivery industry, have emerged. These boxes use internal plastic strips to tear the cardboard, allowing for quick opening. However, these boxes are more expensive to produce. In today's low-profit environment, most businesses still choose traditional cardboard boxes over zippered easy-tear boxes. However, these traditional boxes do not improve the user experience. Furthermore, zippered easy-tear boxes use more paper and glue than regular cardboard boxes due to the use of stiffer corrugated cardboard, which is also less environmentally friendly.

[0004] Therefore, existing technologies still need to be improved and developed. Summary of the Invention

[0005] The purpose of this invention is to provide an easy-tear cardboard box and its packaging method, which aims to solve the problems of existing traditional cardboard boxes being inconvenient to open and having a poor user experience, and to replace the existing high-cost zipper-type easy-tear cardboard boxes.

[0006] The technical solution of the present invention is as follows: an easy-tear cardboard box, comprising a box body and an easy-tear unit area, wherein the easy-tear unit area is provided at least once, and the easy-tear unit area is provided with at least one of a release coating, an adhesive layer, and an easy-tear groove, and the easy-tear unit area overlaps with the adhesive tape area of ​​the box body.

[0007] The easy-tear cardboard box, wherein the adhesive layer is an adhesive plastic film, or adhesive paper, or adhesive release paper, or adhesive release film; the side of the adhesive layer that is adhered to the box body has at least a partial pressure-sensitive adhesive.

[0008] The easy-tear cardboard box, wherein the easy-tear marks are at least one of knife cut marks, dotted lines, groove marks, and laser cut marks.

[0009] The easy-tear cardboard box, wherein the easy tear is at least one of the following: U-shaped easy tear, V-shaped easy tear, X-shaped easy tear, L-shaped easy tear, and straight easy tear.

[0010] The easy-tear cardboard box, wherein the easy-tear unit area is further provided with a sticker, film, coating layer or adhesive film, and the sticker or film is adhered to the side of the box body with an adhesive.

[0011] An easy-tear cardboard box includes a box body, tape, and an easy-tear unit area; the easy-tear unit area is provided at least once; the easy-tear unit area is provided with an easy-tear mark; the easy-tear unit area overlaps with the tape area of ​​the box body; the easy-tear mark is at least one of knife cut marks, dotted lines, groove marks, and laser cut marks; the easy-tear mark is provided after the tape is attached to the box body.

[0012] The easy-tear cardboard box, wherein the easy tear is at least one of the following: U-shaped easy tear, H-shaped easy tear, straight easy tear, V-shaped easy tear, and X-shaped easy tear.

[0013] The easy-tear cardboard box, wherein the easy-tear unit area is also provided with a prompt or warning label.

[0014] A method for packaging a carton for an easy-tear cardboard box as described above includes the following steps: (1) Pack the items into the cardboard box and then close the lid of the cardboard box; (2) Seal the cardboard box body with the lid closed with tape; (3) Set easy-tear marks in the easy-tear unit area of ​​the carton body with tape, so that the easy-tear unit area overlaps with the tape area. The easy-tear marks are at least one of the following: knife cut marks, dotted lines, groove marks, laser cut marks, and at least one of the following: U-shaped easy-tear marks, H-shaped easy-tear marks, straight easy-tear marks, V-shaped easy-tear marks, X-shaped easy-tear marks, and L-shaped easy-tear marks.

[0015] A method for packaging a carton for an easy-tear cardboard box as described above includes the following steps: (1) The carton body has at least one of the following in the pre-planned tear-resistant unit area: release coating, adhesive layer, and tear-resistant groove; the adhesive layer is made of plastic film, paper, release paper, or release film; the tear-resistant groove is made of at least one of the following: knife cut, dotted line, groove, and laser cut; the tear-resistant groove is made of at least one of the following: U-shaped tear-resistant groove, V-shaped tear-resistant groove, X-shaped tear-resistant groove, L-shaped tear-resistant groove, and straight tear-resistant groove. (2) Pack the items into the cardboard box and then close the lid of the cardboard box; (3) Seal the cardboard box with the lid closed with tape so that there is an overlap between the easy-tear unit area and the adhesive tape area of ​​the box.

[0016] Beneficial effects: This invention solves the problems of traditional corrugated cardboard boxes being inconvenient to open and having a poor user experience, and replaces existing, more expensive zipper-type easy-tear cardboard boxes. Because this invention requires removing tape during use, it reduces the amount of tape on the cardboard boxes and also facilitates the recycling and reuse of waste cardboard boxes. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of one structure of the present invention.

[0018] Figure 2 This is a schematic diagram illustrating one embodiment of the structure of the present invention.

[0019] Figure 3 This is another structural schematic diagram of the present invention.

[0020] Figure 4 This is another structural schematic diagram of the present invention.

[0021] Figure 5 This is a cross-sectional schematic diagram of another structure of the present invention.

[0022] Figure 6 This is a schematic diagram illustrating another embodiment of the present invention.

[0023] Figure 7 This is another structural schematic diagram of the present invention.

[0024] Figure 8 This is another structural schematic diagram of the present invention.

[0025] Figure 9 This is another structural schematic diagram of the present invention.

[0026] Figure 10 This is a partial schematic diagram of another structure of the present invention.

[0027] Figure 11 This is a partial schematic diagram of another structure of the present invention.

[0028] Figure 12 This is a partial cross-sectional schematic diagram of another structure of the present invention.

[0029] Figure 13 This is a partial schematic diagram of another structure of the present invention.

[0030] Figure 14 This is a partial cross-sectional schematic diagram of another structure of the present invention.

[0031] Figure 15This is another structural schematic diagram of the present invention.

[0032] Figure 16 This is another structural schematic diagram of the present invention.

[0033] Figure 17 This is another structural schematic diagram of the present invention.

[0034] Figure 18 This is another structural schematic diagram of the present invention.

[0035] Specific implementation To make the objectives, technical solutions, and advantages of this invention clearer and more explicit, the invention will be further described in detail below with reference to the accompanying drawings.

[0036] Obviously, the described embodiments are only some, not all, of the embodiments of this invention. Based on the embodiments of this invention, all other embodiments and implementation methods obtained by those skilled in the art using the same or similar technical features without departing from the concept of this invention and without creative effort are within the scope of protection of this invention.

[0037] In the description of this invention, it should be noted that, unless otherwise specified, the term "easy-tear unit area" should be interpreted broadly to refer to the area that can be used to implement the function of this invention. The adhesive tape area of ​​the carton and / or the area surrounding the adhesive tape area can be used as the easy-tear unit area.

[0038] In the description of this invention, it should be noted that the terms "upper end", "lower end", "front end", "both ends", "side", "lower side", "upper side", "both sides", "edge", "back side", "upper", "lower", "bottom", "surrounding", "one end", "one side", "front", "other side", "outer", "left and right", "vertical", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and therefore should not be construed as limiting this invention.

[0039] Implementation Case 1 like Figure 1 As shown, after the corrugated cardboard is folded into a carton body 10, and the carton is sealed with tape 30, the side with the tape attached is considered the front. The easy-tear unit area on the front of the carton body 10 has a release coating 20, which can be made of silicone oil and has low adhesion. For example... Figure 1When the carton is sealed with tape 30, the tape 30 adheres to most of the release coating 20. Similarly, a release coating can also be applied to the other side of the tape-covered side (not shown in the diagram). When packing items, the corrugated cardboard is folded into a carton body 10, the items are loaded, the top of the carton body is closed, and then the carton body 10 is secured with tape 30. The end of the tape 30 adheres to most of the release coating 20, leaving a small area uncovered. Corrugated cardboard is die-cut, creasing, and stapling or gluing to create corrugated cartons. When the carton is a semi-finished product, it already has creasing and a shape; during production, only the planned tear-resistant sections of the semi-finished carton need to be coated with the release coating 20.

[0040] like Figure 2 When disassembling the box, simply use your fingernail to pry the edge of the release coating 20 of the tape 30, and it will be easier to separate the edge of the tape 30 from the box body 10. Then you can hold one end of the tape and tear the box open.

[0041] Figure 1 The release coating 20 can also be replaced with an adhesive release layer, which is an adhesive release paper or adhesive release film. This adhesive release paper or adhesive release film has one side of pressure-sensitive adhesive that adheres to the easy-tear unit area, and the other side has the low adhesion of the release coating. The usage method is the same as above.

[0042] You can also add reminders or signs (not shown in the picture) to the easy-tear section so that people can easily notice that it can be torn open.

[0043] Implementation Case 2 like Figure 4 As shown, the easy-tear unit area on the front of the box 10 has an adhesive layer. The adhesive layer is made of adhesive plastic film 26, which is T-shaped. The upper part of one side of the T-shaped adhesive plastic film 26 has pressure-sensitive adhesive (not shown in the figure), while the lower part does not have pressure-sensitive adhesive. The end of the tape 30 is adhered to most of the T-shaped adhesive plastic film 26, with a small portion of the lower part of the T-shaped adhesive plastic film 26 not covered by the tape 30. Similarly, a T-shaped adhesive plastic film 26 can also be provided on the other side where the tape is attached (not shown in the figure).

[0044] like Figure 5 As shown, this is a cross-section of the box body. One side of the box body 10 has an easy-tear unit area with an adhesive plastic film 26. One side of the adhesive plastic film 26 has a partial pressure-sensitive adhesive 25 attached to the box body 10. Tape 30 is attached to the other side of the box body 10 and the adhesive plastic film 26. The tape 30 only covers most of the upper part of the adhesive plastic film 26, and a small part of the lower part of the adhesive plastic film 26 without pressure-sensitive adhesive is exposed outside the coverage of the tape 30.

[0045] like Figure 6 The diagram shows the structure of the adhesive plastic film 26 detaching from the box body at its edge. The easy-tear section on the front of the box body 10 has an adhesive layer, which is a T-shaped adhesive plastic film 26. When opening the box, use your fingers to pry open the lower part of the T-shaped adhesive plastic film 26, causing the edge of the tape 30, along with the adhesive plastic film 26, to detach from the box body 10. Then, hold the edges of the adhesive plastic film 26 and the tape 30 with your fingers and tear off the tape 30.

[0046] Similarly, the adhesive plastic film 26 in the easy-tear unit area can also be replaced with adhesive paper with relatively high toughness, and the principle and usage are the same as described above.

[0047] Implementation Case 3 like Figure 7 As shown, after the corrugated cardboard is folded into a carton and filled with items, the carton is sealed with tape 30. The side with the tape attached is considered the front. The easy-tear unit area on the front of the carton 10 has easy-tear lines 21. These easy-tear lines 21 are U-shaped and consist of dotted lines 23 and knife cuts 22. When the carton is a semi-finished product, it already has creases and a shape. During production, only the U-shaped easy-tear lines 21 need to be set in the planned easy-tear unit area of ​​the semi-finished carton. The depth of the easy-tear lines 21 is such that they cut to the middle layer of the corrugated cardboard or to the outer layer. Similarly, U-shaped easy-tear lines 21 can also be set on the other side with the tape attached (not shown in the figure). The easy-tear lines 21 can also be laser-cut, i.e., easy-tear lines are laser-cut into the outer layer of the corrugated cardboard. When packing items, the corrugated cardboard is folded into a carton body 10. After the items are loaded, the top cover of the carton body is closed, and then the carton body 10 is glued with tape 30. The end of the tape 30 is located in the upper part of the U-shaped tear mark 21.

[0048] like Figure 10 This is a partial schematic diagram of the front of box 10. Box 10 is made of corrugated cardboard. The knife cut 22 leaves a cutting mark on the outer layer of the corrugated cardboard. Using a fingernail to pry at the knife cut 22 easily causes the outer layer of paper to detach from the middle layer, resulting in a raised edge on the outer layer. By pinching the raised edge with your fingers, you can tear the outer layer of paper along the dotted line 23. When box 10 is sealed with tape, the tape is still attached to the outer layer of paper, allowing it to be torn off along with the tape.

[0049] The cut 22 can be cut deeper, down to the middle layer of the corrugated cardboard. This allows you to press down with your fingernail along the underside of the cut 22, creating a difference in the height of the outer paper on both sides of the cut 22, making it easier to pry off the outer paper at the cut 22 with your fingernail.

[0050] Grooves can also be created at the cut marks 22, such as... Figure 11 This is a partial schematic diagram of the front of the box 10. Cut marks and grooves were created using tools. The grooves are located below and adjacent to the cut marks. This creates a height difference between the outer paper on both sides of the groove 27, making it easier to peel off the corrugated cardboard outer paper with a fingernail. Figure 12 This is a cross-sectional view of the corrugated cardboard on the front of the box 10. The groove 27 forms a groove on the corrugated cardboard, which makes it easy to scratch the outer paper of the corrugated cardboard with a fingernail.

[0051] like Figure 13 This is a partial schematic diagram of the front of the box 10. To make it easier to remove the corrugated cardboard outer layer, the outer layer can be beveled at a small angle with a blade on the upper side of the groove 27 in the plane of the corrugated cardboard. This causes the edge of the outer layer of the corrugated cardboard above the groove 27 to detach from the middle layer, making it easier to remove the outer layer at the groove 27 with a fingernail. (See attached diagram.) Figure 14 The diagram shows a cross-section of the corrugated cardboard on the front of the box 10. The outer paper is cut diagonally on the upper side of the groove 27 with a blade, so that the edge of the outer paper is separated from the middle layer of paper.

[0052] Besides setting the U-shaped easy-tear marks 21 before the cardboard box is finished, you can also set them in the easy-tear area after the cardboard box is filled with items, the lid is closed and the box is sealed with tape.

[0053] Since the tear mark 21 is quite fine, people may not notice it. You can also put a reminder or sign in the tear-off area (not shown in the picture) to make people more aware that it can be torn open.

[0054] Implementation Case 4 like Figure 8 As shown, after the corrugated cardboard is folded into a carton and filled with items, the carton is sealed with tape 30. The side with the tape attached is considered the front. The easy-tear unit area on the front of the carton 10 has easy-tear lines 21. These easy-tear lines 21 are in a straight line, consisting of a dotted line 23 and a knife cut 22. The knife cut 22 is located in the middle, and the dotted line 23 is located on both sides of the knife cut 22. Similarly, an easy-tear line 21 can also be provided on the other side with the tape attached (not shown in the figure). When the carton is a semi-finished product, it already has creases and a shape. During production, only the easy-tear lines 21 need to be set in the planned easy-tear unit area of ​​the semi-finished carton. The depth of the easy-tear lines 21 is cut to the middle layer of the corrugated cardboard or to the outer layer. The easy-tear lines 21 can also be laser-cut, that is, the easy-tear lines are laser-cut into the outer layer of the corrugated cardboard. When packing items, the corrugated cardboard is folded into a carton body 10, the items are loaded, the top cover of the carton body is closed, and then the carton body 10 is glued with tape 30, with the end of the tape 30 located above the tear line 21.

[0055] In addition to setting the easy-tear unit 21 on the cardboard box before it becomes a finished product, you can also set it on the easy-tear unit area after you have filled the cardboard box with items, closed the lid and sealed the box with tape.

[0056] When opening the box, you can use your fingernail to pry open the knife cut 22, causing the corrugated cardboard outer layer of the box 10 to curl up. Then, pinch the curled-up outer layer of the corrugated cardboard with your fingers and peel it off along with the tape 30. The knife cut 22 can be cut deeper, down to the middle layer of the corrugated cardboard. This way, you can press down along the underside of the knife cut 22 with your fingernail, making it easier to create a difference in the height of the outer layer of the cardboard on both sides of the knife cut 22, thus making it easier to pry open the outer layer of the cardboard at the knife cut 22 with your fingernail.

[0057] Since the tear mark 21 is quite fine, people may not notice it. You can also put a reminder or sign in the tear-off area (not shown in the picture) to make people more aware that it can be torn open.

[0058] Implementation Case 5 like Figure 9 As shown, after the corrugated cardboard is folded into a carton and filled with items, the carton is sealed with tape 30. The side with the tape attached is considered the front. The easy-tear unit area on the front of the carton 10 has easy-tear marks 21. These easy-tear marks 21 are L-shaped, with two mirror-image L-shaped easy-tear marks located at the two corners of the tape 30. The L-shaped easy-tear marks 21 consist of dotted lines 23 and knife cuts 22. Similarly, two mirror-image L-shaped easy-tear marks can also be provided on the other side with the tape attached (not shown in the diagram). When the carton is a semi-finished product, it already has creases and a shape. During production, only the L-shaped easy-tear marks 21 need to be set in the planned easy-tear unit area of ​​the semi-finished carton. The depth of the easy-tear marks 21 is cut to the middle layer of the corrugated cardboard or to the outer layer. The easy-tear marks 21 can also be laser-cut, that is, the easy-tear marks are laser-cut into the outer layer of the corrugated cardboard. When packing items, corrugated cardboard is folded into a carton body 10. After the items are filled, the top cover of the carton body is closed, and then the carton body 10 is secured with tape 30. The end of the tape 30 is located in the area formed between two mirror-image L-shaped easy-tear creases. The L-shaped easy-tear creases can be set not only before the carton is finished, but also after the carton body is filled with items, the top cover is closed, and the carton body is sealed with tape, and then the easy-tear unit area is created using a tool.

[0059] When opening the box, you can use your fingernail to pry open the knife cut 22, causing the corrugated cardboard outer layer of the box 10 to curl up. Then, hold the curled-up outer layer of cardboard with your fingers and peel it off along with the tape 30. Alternatively, you can press down along the underside of the knife cut 22 with your fingernail to create a difference in the height of the outer layer of cardboard on both sides of the knife cut 22. This makes it easier to pry open the outer layer of cardboard at the knife cut 22 with your fingernail and then peel it off along with the tape 30.

[0060] Since the tear mark 21 is quite fine, people may not notice it. You can also put a reminder or sign in the tear-off area (not shown in the picture) to make people more aware that it can be torn open.

[0061] Implementation Case 6 like Figure 3 As shown, after the corrugated cardboard is folded into a carton and filled with items, the carton is sealed with tape 30. The side with the tape attached is considered the front. The front of the carton 10 has tear-resistant creases 21 in the tear-resistant unit area. These creases 21 are X-shaped and consist of two cuts. When the carton is a semi-finished product, it already has creases and a shape. During production, the tear-resistant creases 21 are simply set in the pre-planned tear-resistant unit area of ​​the semi-finished carton. The depth of the tear-resistant creases 21 is such that they cut to the middle layer of the corrugated cardboard or to the outer layer. Similarly, X-shaped tear-resistant creases 21 can also be set on the other side (not shown in the diagram). The tear-resistant creases 21 can also be made using laser cutting, where lasers are used to cut tear-resistant creases into the outer layer of the corrugated cardboard. When packing items, the corrugated cardboard is folded into a carton body 10, the items are loaded, the top cover of the carton body is closed, and then the carton body 10 is glued with tape 30, with the end of the tape 30 located in the upper area of ​​the X-shaped tear 21.

[0062] When opening the box, you can use your fingernail to pry open the outer paper at the upper corner where the two knife cuts intersect, causing the corrugated cardboard outer paper of the box 10 to curl up. Then, hold the curled-up outer paper with your fingers and tear it off along with the tape. Of course, the knife cuts can be made deeper, down to the middle layer of the corrugated cardboard. This way, you can press down on the outer paper at the two corners of the X-shaped tear mark 21 with your fingernail, creating a slight difference in height between the outer paper at the upper and lower corners of the X-shaped tear mark 21, making it easier to pry open the outer paper at the knife cut. Since the tear mark 21 is quite fine, people may not notice it. Therefore, you can place a warning label or sign (not shown in the picture) in the tear-off area to make it easier for people to notice that it can be torn open.

[0063] Besides manually pressing down on the outer paper at the two corners of the X-shaped tear mark 21 with a fingernail, you can also press down on the outer paper at the two corners of the X-shaped tear mark 21 beforehand during production, thus creating a certain height difference with the outer paper at the top and bottom corners of the X-shaped tear mark 21. To make it easier to remove the outer paper of the corrugated cardboard, you can also use a blade to make a small angled cut at the top corner of the cardboard in the plane of the corrugated cardboard. In this way, the edge of the outer paper of the corrugated cardboard at the top corner will separate from the middle layer of paper, making it easier to remove the outer paper at the top corner with a fingernail.

[0064] Implementation Case 7 like Figure 15 As shown, after folding corrugated cardboard into a carton and filling it with items, the carton is sealed with tape 30. The side with the tape attached is considered the front. The easy-tear unit area on the front of the carton 10 has easy-tear lines 21 and a film 50. The easy-tear lines 21 are X-shaped, consisting of two cuts. One side of the film 50 has adhesive. After the film 50 is applied to the easy-tear unit area, an X-shaped easy-tear line 21 is cut into the corrugated cardboard with the film 50 attached. Similarly, easy-tear lines 21 and a film 50 can also be provided on the other side with the tape attached (not shown in the diagram). When the carton is a semi-finished product, it already has creases and a shape. During production, only the easy-tear lines 21 and the film 50 need to be set in the planned easy-tear unit area of ​​the semi-finished carton. The depth of the easy-tear lines 21 is cut to the middle layer of the corrugated cardboard or to the outer layer. When packing items, the corrugated cardboard is folded into a carton body 10. After the items are loaded, the top cover of the carton body is closed, and then the carton body 10 is glued with tape 30. The end of the tape 30 is located in the area where the film 50 is attached above the X-shaped tear mark 21.

[0065] When opening the box, you can use your fingernail to pry open the outer paper at the upper corner where the two cuts intersect, causing the corrugated cardboard outer paper of the box 10 to lift up. Then, hold the lifted corrugated cardboard outer paper with your fingers and peel it off along with the tape. Because the quality of corrugated cardboard boxes varies, the outer paper of some low-quality boxes is not easy to tear in large pieces. However, after applying the film 50, the film makes it easier to peel off the film 50 by holding just one corner of the outer paper, thus also peeling off the tape 30 attached to the film 50. Besides using the film 50, you can also use a tough sticker, or apply a layer of adhesive film or a coating to the easy-tear area. These methods can also achieve the same effect.

[0066] Of course, the knife cut can be made deeper, down to the middle layer of the corrugated cardboard. This allows you to press down on the outer paper at the two corners of the X-shaped tear mark 21 with your fingernail, creating a slight difference in height between the outer paper and the top and bottom corners of the tear mark 21. This makes it easier to peel off the outer paper at the cut with your fingernail. Because the tear mark 21 is quite fine, people might not notice it. Therefore, you can add a warning sign or indication (not shown in the diagram) to the tear-off area to make it easier for people to notice that it can be torn.

[0067] Of course, the knife cut 22 can be cut deeper, down to the middle layer of the corrugated paper. This way, you can press down with your fingernail along the lower side of the knife cut 22, which will make it easier to create a difference in the height of the outer paper on both sides of the knife cut 22, making it easier to pry off the outer paper at the knife cut 22 with your fingernail.

[0068] There can also be grooves at cut marks 22, see reference. Figure 11 and Figure 12 In this implementation example, tools are used to cut knife marks and press out grooves. The grooves are located below and adjacent to the knife marks. This creates a height difference between the outer paper on both sides of the grooves, making it easy to peel off the outer paper of the corrugated cardboard with a fingernail.

[0069] To make it easier to remove the corrugated cardboard outer liner, you can also use a blade to make a small angled cut on the upper side of the groove in the flat surface of the corrugated cardboard, as shown in the example below. Figure 13 and Figure 14 In this implementation case, the edge of the outer paper of the corrugated cardboard on the upper side of the groove is separated from the middle layer paper, making it easier to scratch the outer paper at the groove with a fingernail.

[0070] Since the tear mark 21 is quite fine, people may not notice it. You can also put a reminder or sign in the tear-off area (not shown in the picture) to make people more aware that it can be torn open.

[0071] Implementation Case 8 like Figure 16As shown, after the corrugated cardboard is folded into a carton and filled with items, the carton is sealed with tape 30. The side with the tape attached is considered the front. The front of the carton 10 has tear-resistant sections 21. Tear-resistant sections 21 are H-shaped, consisting of dotted lines 23 and cuts 22. The cuts 22 are located in the middle, with two vertical dotted lines 23 on either side. Tear-resistant sections 21 are created using tools after the carton 10 is filled and sealed with tape. The depth of the tear-resistant sections 21 is such that they cut to the middle layer of the corrugated cardboard or to the outer layer. With technological advancements and increased environmental awareness, tape 30 can also be replaced with environmentally friendly tape, such as biodegradable tape.

[0072] When opening the box, you can use your fingernail to pry open the knife cut 22, causing the corrugated cardboard outer layer of the box 10 to curl up. Then, pinch the curled-up outer layer of the corrugated cardboard with your fingers and peel it off along with the tape 30. The knife cut 22 can be cut deeper, down to the middle layer of the corrugated cardboard. This way, you can press down along the underside of the knife cut 22 with your fingernail, making it easier to create a difference in the height of the outer layer of the cardboard on both sides of the knife cut 22, thus making it easier to pry open the outer layer of the cardboard at the knife cut 22 with your fingernail.

[0073] There can also be grooves at cut marks 22, see reference. Figure 11 and Figure 12 In one implementation example, the box body was taped in place, and then tool-cut slits and grooves were pressed out. The grooves were located below and adjacent to the slits. This created a height difference between the outer paper on both sides of the grooves, making it easy to peel off the surface paper of the corrugated cardboard with a fingernail.

[0074] To make it easier to remove the corrugated cardboard outer liner, you can also use a blade to make a small angled cut on the upper side of the groove in the flat surface of the corrugated cardboard, as shown in the example below. Figure 13 and Figure 14 In this implementation case, the edge of the outer paper of the corrugated cardboard on the upper side of the groove is separated from the middle layer paper, making it easier to scratch the surface paper at the groove with a fingernail.

[0075] Since the tear mark 21 is quite fine, people may not notice it. You can also put a reminder or sign in the tear-off area (not shown in the picture) to make people more aware that it can be torn open.

[0076] Some vendors wrap tape around the box once or wrap it again vertically when packing and sealing it. This implementation case also applies to this type of situation.

[0077] Implementation Case 9 like Figure 17As shown, after the corrugated cardboard is folded into a box and filled with items, the box is sealed with tape 30. The side with the tape attached is considered the front. The easy-tear area on the front of the box 10 has easy-tear marks 21, which are horizontal cuts made by a knife. These horizontal cuts cut across the end of the tape 30. Similarly, horizontal cuts can also be made on the other side with the tape attached (not shown in the diagram). Easy-tear marks 21 can also be made using laser cutting, where the outer layer of the corrugated cardboard is laser-cut. Easy-tear marks 21 are created after the box 10 is filled with items and sealed with tape. The depth of the easy-tear marks 21 is either to the middle layer of the corrugated cardboard or to the outer layer. With technological advancements and increased environmental awareness, tape 30 can also be replaced with environmentally friendly tape, such as biodegradable tape.

[0078] When opening the box, you can use your fingernail to pry open the knife cut marks, causing the corrugated cardboard outer layer of the box 10 to curl up. Then, hold the curled-up outer layer of cardboard with your fingers and peel it off along with the tape 30. The knife cut marks can be made deeper, down to the middle layer of the corrugated cardboard. This way, you can press down along the bottom of the knife cut marks with your fingernail, making it easier to peel off the outer layer of cardboard at the knife cut marks by creating a difference in the height of the outer layer on both sides of the cut marks.

[0079] The cut marks can also have grooves, see reference. Figure 11 and Figure 12 In one implementation example, the box body was taped in place, and then tool-cut slits and grooves were pressed out. The grooves were located below and adjacent to the slits. This created a height difference between the outer paper on both sides of the grooves, making it easy to peel off the surface paper of the corrugated cardboard with a fingernail.

[0080] To make it easier to remove the corrugated cardboard outer liner, you can also use a blade to make a small angled cut on the upper side of the groove in the flat surface of the corrugated cardboard, as shown in the example below. Figure 13 and Figure 14 In this implementation case, the edge of the outer paper of the corrugated cardboard on the upper side of the groove is separated from the middle layer paper, making it easier to scratch the surface paper at the groove with a fingernail.

[0081] Since the tear mark 21 is quite fine, people may not notice it. You can also put a reminder or sign in the tear-off area (not shown in the picture) to make people more aware that it can be torn open.

[0082] Some vendors wrap tape around the box once or wrap it again vertically when packing and sealing it. This implementation case also applies to this type of situation.

[0083] Implementation Case 10 like Figure 18 As shown, after folding corrugated cardboard into a carton and filling it with items, the carton is sealed with tape 30, with one side considered the front. Tape 30 wraps around the carton 10 along both the front and side directions. The front of the carton 10 has tear-resistant creases 21, which are X-shaped and consist of two knife cuts that diagonally cut through the tape 30 to form the X shape. Similarly, X-shaped tear-resistant creases 21 can also be provided on the back (not shown in the diagram). The sides of the carton 10 also have tear-resistant creases 21, which are V-shaped and consist of two knife cuts that diagonally cut through the tape 30 to form the V shape. These tear-resistant creases 21 are created using tools after the carton 10 is filled with items and sealed with tape. The depth of the tear mark 21 is such that it cuts to the middle layer of the corrugated cardboard or to the outer layer. With technological advancements and increased environmental awareness, tape 30 can also be replaced with environmentally friendly tapes, such as biodegradable tapes.

[0084] When opening the box, you can use your fingernail to pry open the outer paper at the upper corner where the two knife cuts intersect on the front, causing the corrugated cardboard outer paper of the box 10 to curl up. Then, pinch the curled-up corrugated cardboard outer paper with your fingers and tear it off along with the tape. Of course, the knife cuts can be made deeper, down to the middle layer of the corrugated cardboard. This way, you can press down on the outer paper at the left and right corners of the X-shaped tear mark 21 with your fingernail, creating a certain height difference with the outer paper at the upper and lower corners of the X-shaped tear mark 21, making it easier to pry open the outer paper at the knife cut with your fingernail.

[0085] Besides manually pressing down on the outer paper at the two corners of the X-shaped tear mark 21 with a fingernail, you can also press down on the outer paper at the two corners of the X-shaped tear mark 21 before production, thus creating a certain height difference with the outer paper at the top and bottom corners of the X-shaped tear mark 21. To make it easier to remove the outer paper from the corrugated cardboard, you can also use a blade to diagonally cut the outer paper at the corners at a small angle on the flat side of the corrugated cardboard, similar to the above method. Figure 13 and Figure 14 In this way, the edge of the corrugated cardboard's outer layer detaches from the middle layer at the upper corner, making it easier to pry off the outer layer at the upper corner with a fingernail.

[0086] Since the box is sealed with two layers of tape, tearing the tape on the front also requires tearing the tape on the side. Similarly, you can use your fingernail to pry open the outer paper at the corner where the two knife cuts intersect on the side, causing the corrugated cardboard outer paper of the box 10 to curl up. Then, pinch the curled-up corrugated cardboard outer paper with your fingers and tear it off along with the tape. Two grooves can also be provided below the two knife cuts along the V-shaped tear mark 21, creating a slight drop in the outer paper to facilitate tearing with your fingernail. Alternatively, you can use a blade to make a small angled cut at the corner of the V-shaped tear mark 21 on the flat side of the corrugated cardboard, similar to the above method. Figure 13 and Figure 14 In this way, the edge of the outer layer of the corrugated cardboard is separated from the middle layer, making it easier to peel the outer layer at the corner with a fingernail.

[0087] Since the tear mark 21 is quite fine, people may not notice it. You can also put a reminder or sign in the tear-off area (not shown in the picture) to make people more aware that it can be torn open.

[0088] Implementation Case 11 A method for packaging a tear-resistant cardboard box includes the following steps: (1) Pack the items into the cardboard box and then close the lid of the cardboard box; (2) Seal the cardboard box body with the lid closed with tape; (3) Set easy-tear marks in the easy-tear unit area of ​​the carton body with tape, so that the easy-tear unit area overlaps with the tape area. The easy-tear marks are at least one of the following: knife cut marks, dotted lines, groove marks, laser cut marks, and at least one of the following: U-shaped easy-tear marks, H-shaped easy-tear marks, straight easy-tear marks, V-shaped easy-tear marks, X-shaped easy-tear marks, and L-shaped easy-tear marks.

[0089] Implementation Case 12 A method for packaging a tear-resistant cardboard box includes the following steps: (1) The carton body has at least one of the following in the pre-planned tear-resistant unit area: release coating, adhesive layer, and tear-resistant groove; the adhesive layer is made of plastic film, paper, release paper, or release film; the tear-resistant groove is made of at least one of the following: knife cut, dotted line, groove, and laser cut; the tear-resistant groove is made of at least one of the following: U-shaped tear-resistant groove, V-shaped tear-resistant groove, X-shaped tear-resistant groove, L-shaped tear-resistant groove, and straight tear-resistant groove. (2) Pack the items into the cardboard box and then close the lid of the cardboard box; (3) Seal the cardboard box with the lid closed with tape so that there is an overlap between the easy-tear unit area and the adhesive tape area of ​​the box.

Claims

1. An easy-tear cardboard box, characterized in that: It includes a housing and an easy-tear unit area. The easy-tear unit area is provided at least once. The easy-tear unit area is provided with at least one of the following: release coating, adhesive layer, and easy-tear groove. The easy-tear unit area overlaps with the adhesive tape area of ​​the housing.

2. The easy-tear cardboard box according to claim 1, characterized in that, The adhesive layer is an adhesive plastic film, adhesive paper, adhesive release paper, or adhesive release film; the side of the adhesive layer that is adhered to the box body has at least a partial pressure-sensitive adhesive.

3. The easy-tear cardboard box according to claim 1, characterized in that, The aforementioned easily torn marks are at least one of the following: knife cut marks, dotted line marks, groove marks, and laser cut marks.

4. The easy-tear cardboard box according to claim 1, characterized in that, The aforementioned easy tear is at least one of the following: U-shaped easy tear, V-shaped easy tear, X-shaped easy tear, L-shaped easy tear, and straight easy tear.

5. The easy-tear cardboard box according to claim 4, characterized in that, The easy-tear unit area is also provided with a sticker, film, coating layer or adhesive film, and the sticker or film is attached to the side of the box body with adhesive.

6. An easy-tear cardboard box, characterized in that: It includes a box body, tape, and an easy-tear unit area; the easy-tear unit area is provided at least once; the easy-tear unit area is provided with easy-tear marks; the easy-tear unit area overlaps with the tape area of ​​the box body; the easy-tear marks are at least one of knife cut marks, dotted lines, groove marks, and laser cut marks; the easy-tear marks are provided after the tape is attached to the box body.

7. The easy-tear cardboard box according to claim 6, characterized in that, The aforementioned easy tear is at least one of the following: U-shaped easy tear, H-shaped easy tear, straight easy tear, V-shaped easy tear, and X-shaped easy tear.

8. The easy-tear cardboard box according to any one of claims 1 to 7, characterized in that, The easy-tear unit area is also equipped with prompts or warning signs.

9. A method for packaging a tear-resistant cardboard box according to any one of claims 1, 3, 4, 6, and 7, characterized in that, Includes the following steps: (1) Pack the items into the cardboard box and then close the lid of the cardboard box; (2) Seal the cardboard box body with the lid closed with tape; (3) Set easy-tear marks in the easy-tear unit area of ​​the carton body with tape, so that the easy-tear unit area overlaps with the tape area. The easy-tear marks are at least one of the following: knife cut marks, dotted lines, groove marks, laser cut marks, and at least one of the following: U-shaped easy-tear marks, H-shaped easy-tear marks, straight easy-tear marks, V-shaped easy-tear marks, X-shaped easy-tear marks, and L-shaped easy-tear marks.

10. A method for packaging a carton according to any one of claims 1 to 5, characterized in that, Includes the following steps: (1) The carton body has at least one of the following in the pre-planned tear-resistant unit area: release coating, adhesive layer, and tear-resistant groove; the adhesive layer is made of plastic film, paper, release paper, or release film; the tear-resistant groove is made of at least one of the following: knife cut, dotted line, groove, and laser cut; the tear-resistant groove is made of at least one of the following: U-shaped tear-resistant groove, V-shaped tear-resistant groove, X-shaped tear-resistant groove, L-shaped tear-resistant groove, and straight tear-resistant groove. (2) Pack the items into the cardboard box and then close the lid of the cardboard box; (3) Seal the cardboard box with the lid closed with tape so that there is an overlap between the easy-tear unit area and the adhesive tape area of ​​the box.

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