Double-cavity packaging bag

Abstract

The utility model discloses a double-cavity packaging bag which comprises a bag body, a vertical crack is formed in a non-edge area of the front face or the rear face of the bag, and the two ends of the vertical crack extend to the top and the bottom of the bag body respectively. The non-edge area between the bag front face and the bag rear face is provided with two parallel vertical cementing layers for bonding, the two vertical cementing layers are located on the two sides of the vertical crack and close to the vertical crack, the two ends of the two vertical cementing layers extend to the top and the bottom of the bag body respectively, and the two vertical cementing layers serve as a partition structure to enable the bag body to form two cavities. According to the utility model, the vertical crack is specifically designed, and the cured adhesive with higher hardness is designed and laid on the two sides of the vertical crack, so that the cured adhesive is prevented from hindering the following folding action, the opposite surface without the vertical crack is used as a connecting structure of the two cavities, and the vertical crack is used as a folding position, so that the folding effect is improved. The two cavities can be completely folded and attached, and a user can conveniently squeeze out contents in the two cavities at the same time.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging products, and in particular relates to a double-cavity packaging bag. Background Art

[0002] In the field of hair dyeing and hair care, hair dyeing and hair care products that require two components to be mixed and prepared when used are mostly packaged in two completely independent packaging bags. When using, users squeeze out the contents of the two packaging bags in turn for mixing and stirring. The applicant and the inventor have been deeply engaged in hair dyeing and hair care products for many years and are committed to improving user experience from the details. It is found that some users will squeeze two packaging bags together when mixing, and the surface of the packaging bags is relatively smooth and the contents are fluid. It is easy for relative sliding to occur between the two packaging bags when squeezed together, causing the packaging bags to easily slip out of the hands and the contents to spill.

[0003] Based on the above user observations, the inventor believes that the double-chamber soft packaging bag can basically solve the above problems. The double-chamber soft packaging bag can load two contents at the same time and keep them separated. It has been applied to many fields in life. The inventor has investigated the existing double-chamber packaging bags and believes that the structure of the existing double-chamber packaging bags is suitable for hair dyeing and hair care products. There is still room for improvement.

[0004] For example, the patent document with application number CN202223363867.2 discloses a high-stiffness seal lightweight double-chamber packaging bag, including a bag body, the bag body having a first accommodating chamber and a second accommodating chamber, the first accommodating chamber and the second accommodating chamber are separated by a dividing strip, and one end of the bag body is also fixedly connected to a patch structure for improving the overall stiffness of the bag body, and the patch structure is made of a multi-layer composite film.

[0005] The above-mentioned prior art is the partition structure of most current double-chamber packaging bags, that is, the glue coating area is designed through a hot pressing and gluing process to form two independent chambers. However, the inventors found during the research and development testing process that the middle strip-shaped hot pressing partition area has a high hardness after curing, and it is difficult for the two chambers to be completely folded in half and fitted together. After bending, the state of the bag body is that the two chambers and the strip-shaped hot pressing partition area form a structure similar to a triangular prism, which is not conducive to extrusion operations and it is also difficult to completely squeeze out the contents of the packaging bag.

[0006] In summary, the utility model aims to provide a double-cavity packaging bag structure that can be completely folded and fitted together to facilitate the combined extrusion operation of two-component hair dye and hair care products. Summary of the invention

[0007] In view of the problems in the related technology, the utility model proposes a double-cavity packaging bag to overcome the above technical problems existing in the existing related technology.

[0008] The technical solution of the utility model is achieved in this way:

[0009] A double-chamber packaging bag, suitable for a two-component hair dye and hair care product, comprising a bag body, wherein the bag body comprises a bag front and a bag back, a vertical crack is provided in a non-edge area of ​​the bag front or bag back, and two ends of the vertical crack extend to the top and bottom of the bag body respectively;

[0010] Two parallel vertical adhesive layers are provided in the non-edge area between the front and back of the bag for bonding, the two vertical adhesive layers are located on both sides of the vertical crack and close to the vertical crack, both ends of the two vertical adhesive layers extend to the top and bottom of the bag body respectively, and the two vertical adhesive layers serve as a partition structure to form two independent chambers distributed left and right in the bag body;

[0011] The vertical crack serves as a folding point. The two chambers can be completely folded and fitted together when they approach each other in a direction of spreading and exposing the vertical crack. However, there is resistance when the two chambers approach each other in a direction of hiding and merging the vertical crack.

[0012] Preferably, the vertical crack is provided on the back of the bag, and the vertical crack completely cuts the back of the bag, while the front of the bag maintains a complete surface structure.

[0013] Preferably, the front and rear sides of the bag are provided with edge-sealing adhesive layers along the edge shape for bonding, and the edge-sealing adhesive layers are connected with both ends of the vertical adhesive layer.

[0014] Preferably, a plurality of vertical reinforcing strips are provided behind the two vertical glue layers along the length direction, and the vertical reinforcing strips protrude backwards from the rear of the vertical glue layers, and the forward or backward bending of the double-cavity packaging bag is restricted by the vertical reinforcing strips.

[0015] Preferably, the edge sealing adhesive layer is provided with a plurality of edge sealing reinforcement strips, and the bending of the edge position of the double-cavity packaging bag is restricted by the edge sealing reinforcement strips.

[0016] Preferably, a plurality of the edge sealing reinforcement strips are arranged in front of the edge sealing adhesive layer, and the edge sealing reinforcement strips protrude forward from the front of the edge sealing adhesive layer.

[0017] Preferably, the upper dimensions of the front and rear of the bag gradually decrease upwards to form a narrowed outlet of the bag body, and opening notches are symmetrically provided on both sides of the narrowed outlet.

[0018] Preferably, the edge reinforcement strip at the narrowed outlet comprises a plurality of transverse reinforcement strips and a continuous curved reinforcement strip, the curved reinforcement strip is laid along the shape of the narrowed outlet, and a plurality of transverse reinforcement strips are laid on the outer side of the curved reinforcement strip.

[0019] Preferably, the double-chamber packaging bag is made by folding a one-piece sheet, the left and right sides of the one-piece sheet are adhered to both sides of its own midline by the vertical adhesive layer, the left and right sides of the one-piece sheet are opposite and close to each other or the left and right sides of the one-piece sheet are in contact, and the vertical crack is formed between the left and right sides.

[0020] Preferably, the one-piece sheet after folding the left and right sides is bonded with a first bonding area along the upper shape to serve as the bag opening of the double-cavity packaging bag, and the first bonding area is connected to the upper end of the vertical bonding layer;

[0021] After the left and right sides are folded, the one-piece sheet is bonded with a second bonding area along the lower side shape to serve as the bag bottom of the double-cavity packaging bag, and the second bonding area is connected to the lower end of the vertical bonding layer;

[0022] The first gluing area and the second gluing area constitute the edge-sealing gluing layer, and the edge-sealing gluing layer and the vertical gluing layer are in an I-shape, so that the outer sides of the two formed cavities have no gluing layer.

[0023] The beneficial effects of the utility model are as follows: compared with the prior art, the utility model specifically designs the vertical crack, and an adhesive with higher hardness after curing is designed to be laid on both sides of the vertical crack to avoid the cured adhesive from hindering the following folding action, and the opposite surface without the vertical crack is used as a connecting structure of the two chambers, with the vertical crack as the folding point, and the two chambers approach each other in the direction of unfolding to expose the vertical crack and can be completely folded and fitted together, making it convenient for users to squeeze out the contents of the two chambers at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is one of the structural schematic diagrams of the utility model (front view);

[0025] Figure 2 This is the second structural diagram of the utility model (backward perspective);

[0026] Figure 3 for Figure 2 A magnified image of point A;

[0027] Figure 4 It is a cross-sectional view of the utility model;

[0028] Figure 5 for Figure 4 A magnified view of point B;

[0029] Figure 6 It is a schematic diagram of the folding direction of the utility model;

[0030] Figure 7 for Figure 6 Enlarged view of point C;

[0031] Figure 8 This is the third structural diagram of the utility model (folded in half);

[0032] Fig. 9 for Figure 8 The enlarged view of point D;

[0033] Fig.10 This is a schematic diagram of the structure of a one-piece sheet of the utility model;

[0034] Fig.11 It is a schematic diagram of folding a one-piece sheet of the utility model.

[0035] Marking Description:

[0036] 1. Front of bag;

[0037] 2. Behind the bag;

[0038] 3. Vertical cracks;

[0039] 4. Chamber;

[0040] 5. Vertical glue layer;

[0041] 6. Vertical reinforcement strips;

[0042] 7. Edge reinforcement strip; 701. Horizontal reinforcement strip; 702. Curve reinforcement strip;

[0043] 8. Opening gap;

[0044] 9. One-piece sheet. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0047] like Figures 1 to 10 As shown, a double-chamber packaging bag is suitable for two-component hair dye and hair care products. The two components in this embodiment are 18ml hair dye and 18ml color developer.

[0048] The double-cavity packaging bag comprises a bag body, wherein the bag body comprises a bag front 1 and a bag back 2, a vertical crack 3 is provided in a non-edge area of ​​the bag front 1 or the bag back 2, and two ends of the vertical crack 3 extend to the top and the bottom of the bag body respectively;

[0049] Two parallel vertical adhesive layers 5 are provided in the non-edge area between the front face 1 and the back face 2 of the bag for bonding. The two vertical adhesive layers 5 are located on both sides of the vertical crack 3 and close to the vertical crack 3. Both ends of the two vertical adhesive layers 5 extend to the top and bottom of the bag body respectively. The two vertical adhesive layers 5 serve as a partition structure to form two independent chambers 4 distributed left and right in the bag body.

[0050] Compared with the prior art, the vertical crack 3 is specifically designed in this embodiment, and an adhesive with a higher hardness after curing is designed to be laid on both sides of the vertical crack 3 to prevent the cured adhesive from hindering the folding action described below. The opposite surface where the vertical crack 3 is not designed serves as a connecting structure of the two chambers 4. With the vertical crack 3 as the folding point, the two chambers 4 can be completely folded and fitted together when they approach each other in the direction of unfolding and exposing the vertical crack 3, which is convenient for the user to squeeze out the contents of the two chambers 4 at the same time (i.e. the hair dye and developer mentioned above). There is resistance when the two chambers 4 approach each other in the direction of hiding and merging the vertical crack 3.

[0051] In this embodiment, the bag back 2 is provided with the vertical crack 3, and the vertical crack 3 completely cuts the bag back 2, ensuring the freedom of folding action, and the bag front 1 maintains a complete surface structure. The bag front 1 mostly displays information such as pattern design, brand trademark, product highlights, etc. The complete bag front 1 is conducive to displaying information and improving the aesthetics of the product. At the same time, the bag back 2 is designed with hair dyeing operation diagrams, precautions, etc., and such information needs to be repeatedly seen by users as easily as possible. Therefore, the design of this embodiment is that the bag back 2 is exposed after folding in half to fully display the hair dyeing information that users need to know.

[0052] In this embodiment, the bag front 1 and the bag back 2 are provided with edge sealing adhesive layers along the edge shape for bonding, and the edge sealing adhesive layers are connected with both ends of the vertical adhesive layer 5 to form a chamber 4 by laying and bonding.

[0053] In this embodiment, a plurality of vertical reinforcing strips 6 are provided behind the two vertical adhesive layers 5 along the length direction, and the bending forward or backward of the double-cavity packaging bag is restricted by the vertical reinforcing strips 6, thereby ensuring the overall stiffness of this embodiment and preventing the embodiment from being excessively folded in the wrong direction to cause wrinkles or bursting of the bag.

[0054] Taking into account that the edge is a part that is more susceptible to external impact, in this embodiment, the edge sealing adhesive layer is provided with a plurality of edge sealing reinforcement strips 7 to increase the structural strength of the edge position. The bending of the edge position of the double-cavity packaging bag is restricted by the edge sealing reinforcement strips 7, which cooperate with the above-mentioned vertical reinforcement strips 6 to keep the present embodiment in a straight state.

[0055] The vertical reinforcing strips 6 are generally located on both sides of the midline of the bag body, and therefore should not be designed to protrude from the front 1 of the bag, which would affect the information display effect of the front 1 of the bag. Therefore, the vertical reinforcing strips 6 of this embodiment protrude backwards from the back of the vertical adhesive layer 5 .

[0056] Several of the edge sealing reinforcement strips 7 are arranged in front of the edge sealing adhesive layer, and are not laid on the same surface as the vertical reinforcement strips 6 to avoid connection at the turning point and reduce the difficulty of laying the reinforcement strips. The edge sealing reinforcement strips 7 protrude forward from the front of the edge sealing adhesive layer. The edge sealing reinforcement strips 7 are laid along the edge of the bag front 1, which will not cause adverse effects on the information display of the bag front 1, and basically does not affect the aesthetics of the bag front 1.

[0057] In this embodiment, the upper dimensions of the bag front 1 and the bag back 2 gradually decrease upwards to form a narrowed outlet of the bag body, which is conducive to guiding the contents in the chamber 4 to flow out and align with the container for holding the contents. Opening notches 8 are symmetrically provided on both sides of the narrowed outlet to prompt the user to tear or cut the best position of this embodiment.

[0058] In this embodiment, the edge reinforcement strip 7 at the narrowed outlet includes a plurality of transverse reinforcement strips 701 and a continuous curved reinforcement strip 702. The curved reinforcement strip 702 is laid along the shape of the narrowed outlet, and the outer side of the curved reinforcement strip 702 is designed to be a plurality of transverse reinforcement strips 701 with lower laying difficulty.

[0059] Reference Fig.10 and Fig.11 In this embodiment, the double-cavity packaging bag is made by folding a one-piece sheet 9, and the left and right sides of the one-piece sheet 9 are adhered to both sides of its own midline through the vertical adhesive layer 5. The left and right sides of the one-piece sheet 9 are opposite and close to each other or the left and right sides of the one-piece sheet 9 are in contact with each other, and the vertical crack 3 is formed between the left and right sides.

[0060] After the left and right sides are folded, the one-piece sheet 9 is bonded with a first bonding area along the upper shape to serve as the bag opening of the double-cavity packaging bag, and the first bonding area is connected to the upper end of the vertical bonding layer 5;

[0061] After the left and right sides are folded, the one-piece sheet 9 is provided with a second gluing area along the lower side shape to serve as the bottom of the double-cavity packaging bag, and the second gluing area is connected to the lower end of the vertical gluing layer 5;

[0062] The first gluing area and the second gluing area constitute the edge-sealing gluing layer. The edge-sealing gluing layer and the vertical gluing layer 5 are in an I-shape, and the left and right sides are cleverly used to form the vertical crack 3, which simplifies the number of sheets and the sheet cutting steps in the production of this embodiment. At the same time, the outer sides of the two cavities 4 formed at the same time have no gluing layer, which reduces the amount of adhesive used and the number of gluing steps.

[0063] According to the disclosure and teaching of the above specification, the technicians in the field of the utility model can also change and modify the above implementation mode. Therefore, the utility model is not limited to the specific implementation modes disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of explanation and do not constitute any limitation to the utility model.

Claims

1. A double-chamber packaging bag, suitable for two-component hair dye and hair care products, characterized in that: The bag body comprises a bag front and a bag back, a non-edge area of ​​the bag front or the bag back is provided with a vertical crack, and two ends of the vertical crack extend to the top and the bottom of the bag body respectively; Two parallel vertical adhesive layers are provided in the non-edge area between the front and back of the bag for bonding, the two vertical adhesive layers are located on both sides of the vertical crack and close to the vertical crack, both ends of the two vertical adhesive layers extend to the top and bottom of the bag body respectively, and the two vertical adhesive layers serve as a partition structure to form two independent chambers distributed left and right in the bag body; The vertical crack serves as a folding point. The two chambers can be completely folded and fitted together when they approach each other in a direction of spreading and exposing the vertical crack. However, there is resistance when the two chambers approach each other in a direction of hiding and merging the vertical crack.

2. The double-chamber packaging bag according to claim 1, characterized in that: The back of the bag is provided with the vertical crack, which completely cuts the back of the bag, while the front of the bag maintains a complete surface structure.

3. The double-chamber packaging bag according to claim 1 or 2, characterized in that: The front and rear sides of the bag are provided with edge-sealing adhesive layers along the edge shape for bonding, and the edge-sealing adhesive layers are connected with both ends of the vertical adhesive layer.

4. The double-chamber packaging bag according to claim 3, characterized in that: A plurality of vertical reinforcing strips are arranged along the length direction behind the two vertical glued layers. The vertical reinforcing strips protrude backward from the rear of the vertical glued layers. The forward or backward bending of the double-cavity packaging bag is restricted by the vertical reinforcing strips.

5. The double-chamber packaging bag according to claim 4, characterized in that: The edge sealing adhesive layer is provided with a plurality of edge sealing reinforcement strips, and the bending of the edge position of the double-cavity packaging bag is restricted by the edge sealing reinforcement strips.

6. The double-chamber packaging bag according to claim 5, characterized in that: A plurality of edge sealing reinforcement strips are arranged in front of the edge sealing adhesive layer, and the edge sealing reinforcement strips protrude forward from the front of the edge sealing adhesive layer.

7. The double-chamber packaging bag according to claim 6, characterized in that: The upper dimensions of the front and rear of the bag gradually decrease upwards to form a narrowed outlet of the bag body, and opening notches are symmetrically arranged on both sides of the narrowed outlet.

8. The double-chamber packaging bag according to claim 7, characterized in that: The edge reinforcement strip at the narrowed outlet includes a plurality of transverse reinforcement strips and a continuous curved reinforcement strip. The curved reinforcement strip is laid along the shape of the narrowed outlet, and a plurality of transverse reinforcement strips are laid on the outer side of the curved reinforcement strip.

9. The double-chamber packaging bag according to claim 7, characterized in that: The double-cavity packaging bag is made by folding a one-piece sheet, the left and right sides of the one-piece sheet are adhered to both sides of its own midline by the vertical adhesive layer, the left and right sides of the one-piece sheet are opposite and close to each other or the left and right sides of the one-piece sheet are in contact, and the vertical crack is formed between the left and right sides.

10. The double-chamber packaging bag according to claim 9, characterized in that: After the left and right sides are folded, the one-piece sheet is bonded with a first bonding area along the upper shape to serve as the bag opening of the double-cavity packaging bag, and the first bonding area is connected to the upper end of the vertical bonding layer; After the left and right sides are folded, the one-piece sheet is bonded with a second bonding area along the lower side shape to serve as the bag bottom of the double-cavity packaging bag, and the second bonding area is connected to the lower end of the vertical bonding layer; The first gluing area and the second gluing area constitute the edge-sealing gluing layer, and the edge-sealing gluing layer and the vertical gluing layer are in an I-shape, so that the outer sides of the two formed cavities have no gluing layer.

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