Bag-in-bag type dry-wet separation bag

Abstract

The utility model discloses a bag-in-bag type dry-wet separation bag and relates to the technical field of packaging bags, the bag-in-bag type dry-wet separation bag comprises an upper composite film, a middle composite film and a lower composite film, the middle composite film is located between the upper composite film and the lower composite film, one end of the middle composite film is shorter than the upper composite film and the lower composite film, and the middle composite film is provided with a connecting part and a suspension part; the upper composite membrane and the lower composite membrane are both connected with the connecting part, the suspension part is connected with the upper composite membrane through the fracture structure, the upper composite membrane, the middle composite membrane and the fracture structure define a membrane liquid cavity, the lower composite membrane and the middle composite membrane define a membrane cloth cavity, the upper composite membrane and the lower composite membrane define a connecting channel, and the membrane liquid cavity and the membrane cloth cavity are both communicated with the connecting channel. The fracture structure is used for separating the membrane liquid cavity from the connecting channel. If the separation bag needs to be based on the characteristics of the mask liquid and the mask cloth, the upper composite film, the middle composite film and the lower composite film which are made of different materials are replaced in the manufacturing process of the separation bag, and therefore the mask liquid and the mask cloth are protected.

Description

Technical Field

[0001] The present application relates to the technical field of packaging bags, and in particular to a bag-in-bag type dry-wet separation bag. Background Art

[0002] The dry-wet separation bag is usually divided into a dry area and a wet area. The dry area is used to store the mask cloth, and the wet area is used to store the mask liquid.

[0003] The existing Chinese patent with publication number CN221342058U discloses an extruded dry-wet dual-chamber facial mask bag, including a facial mask chamber and a liquid chamber, wherein the facial mask chamber and the liquid chamber are respectively provided with peripheral sealing edges, a middle sealing edge is provided between the facial mask chamber and the liquid chamber, and a fracture line is provided between the membrane chamber and the liquid chamber; the special feature of the bag is that a stop hole is provided at the end of the fracture line opposite to the middle sealing edge, and the stop hole and the fracture line intersect.

[0004] The above-mentioned squeeze-type dry-wet dual-chamber mask bag is provided with a stop hole at the end of the fracture line, which effectively prevents damage to the middle edge seal when the mask chamber and the liquid chamber are separated. However, the above-mentioned squeeze-type dry-wet dual-chamber mask bag has some disadvantages, such as: the mask bag is formed by heat-sealing two composite films, and the middle edge seal and the two composite films enclose the mask chamber and the liquid chamber. Since the inner wall of each cavity is made of the same composite film, when two substances with different characteristics are placed in the two cavities respectively, the composite film of the same material can only protect the substance with one characteristic, and the protection of the substance with the other characteristic is not strong, which needs to be improved. Utility Model Content

[0005] The purpose of the present application is to provide a bag-in-bag type dry-wet separation bag in order to protect substances with different characteristics.

[0006] A bag-in-bag type dry-wet separation bag provided in the present application adopts the following technical solution: it includes an upper composite membrane, a middle composite membrane and a lower composite membrane, the middle composite membrane is located between the upper composite membrane and the lower composite membrane, one end of the middle composite membrane is shorter than the upper composite membrane and the lower composite membrane, the middle composite membrane is provided with a connecting portion and a suspended portion, the upper composite membrane and the lower composite membrane are both connected to the connecting portion, the suspended portion is connected to the upper composite membrane through a fracture structure, the upper composite membrane, the middle composite membrane and the fracture structure enclose a membrane liquid cavity, the lower composite membrane and the middle composite membrane enclose a membrane cloth cavity, the upper composite membrane and the lower composite membrane enclose a connecting channel, the membrane liquid cavity and the membrane cloth cavity are both connected to the connecting channel, and the fracture structure is used to separate the membrane liquid cavity and the connecting channel.

[0007] By adopting the above technical solution, the facial mask liquid is placed in the membrane liquid cavity, and the facial mask cloth is placed in the membrane cloth cavity. When the separation bag is used, the separation bag is squeezed, and the fracture structure is compressed and separated from the upper composite film or the middle composite film, so that the membrane liquid cavity and the connecting channel are in a conductive state, and the facial mask liquid in the membrane liquid cavity enters the membrane cloth cavity through the connecting channel, thereby achieving the mixing of the facial mask liquid and the facial mask cloth. If it is necessary to replace the upper composite film, the middle composite film and the lower composite film of different materials during the production process of the separation bag based on the characteristics of the facial mask liquid and the facial mask cloth, so as to protect the facial mask liquid and the facial mask cloth.

[0008] Optionally, the breaking structure includes a reinforcement strip and a breaking strip connected to the inner wall of the membrane liquid cavity, and the reinforcement strip and the breaking strip are connected.

[0009] By adopting the above technical solution, the role of the reinforcement strip is to shorten the length of the breaking strip. When the extrusion pressure remains unchanged, the pressure area of ​​the breaking strip becomes smaller and the pressure on the breaking strip becomes larger, which facilitates the separation of the breaking strip from the upper composite membrane or the middle composite membrane and improves the efficiency of the separation of the breaking strip.

[0010] Optionally, there are two reinforcing bars, the breaking bar is located between the two reinforcing bars, and both ends of the breaking bar are respectively connected to the two reinforcing bars.

[0011] By adopting the above technical solution, the two reinforcement strips are used to fix the position of the breaking strip, prevent the breaking strip from being directly connected to the connecting part, enhance the overall strength, and facilitate the breaking strip to be separated from the upper composite membrane or the middle composite membrane under pressure. The two reinforcement strips can further shorten the length of the breaking strip, and facilitate the breaking strip to be separated from the upper composite membrane or the middle composite membrane under pressure.

[0012] Optionally, the fracture strip is wavy.

[0013] By adopting the above technical scheme, for the upper composite membrane corresponding to the extrusion membrane liquid cavity, the pressure is concentrated on the raised portion of the breaking strip close to the connecting channel. Compared with other pressurized parts, the raised portion close to the connecting channel has concentrated pressure, and the breaking strip is more easily separated from the upper composite membrane or the middle composite membrane; for the upper composite membrane used for the extrusion connecting channel, the pressure is concentrated on the raised portion of the breaking strip close to the membrane liquid cavity. Compared with other pressurized parts, the raised portion close to the membrane liquid cavity has concentrated pressure, and the breaking strip is more easily separated from the upper composite membrane or the middle composite membrane.

[0014] Optionally, the upper composite film includes a first printed layer, a first functional layer connected to the first printed layer, and a first easy-peel layer connected to the first functional layer; the middle composite film includes a second easy-peel layer and a second functional layer connected to the second easy-peel layer; the first functional layer is located between the first printed layer and the first easy-peel layer, the first easy-peel layer is located between the first functional layer and the second easy-peel layer, and the second easy-peel layer is located between the first easy-peel layer and the second functional layer.

[0015] By adopting the above technical solution, the two opposite sides of the breaking strip are respectively connected to the first easy-to-peel layer and the second easy-to-peel layer. When the breaking strip is under pressure, it is easy to separate the breaking strip from the first easy-to-peel layer or the second easy-to-peel layer, thereby improving the efficiency of separation of the breaking layers.

[0016] Optionally, the middle composite film further includes a first heat-sealing layer connected to the second functional layer, the lower composite film includes a second heat-sealing layer, a third functional layer connected to the second heat-sealing layer, and a second printing layer connected to the third functional layer, the second functional layer is located between the first heat-sealing layer and the second easy-peel layer, the second heat-sealing layer is located between the first heat-sealing layer and the third functional layer, and the third functional layer is located between the second heat-sealing layer and the second printing layer.

[0017] By adopting the above technical solution, the middle composite film and the lower composite film are heat-sealed together through the first heat-sealing layer and the second heat-sealing layer, thereby improving the overall strength of the separation bag.

[0018] Optionally, the first functional layer is an aluminum foil layer.

[0019] By adopting the above technical solution, the aluminum foil layer can effectively block external factors such as light, oxygen, and moisture, and protect the ingredients in the mask, which is especially important for masks containing highly active ingredients and easily oxidized ingredients. The sealing performance provided by the aluminum foil layer can prevent the mask from being contaminated or deteriorated during storage and transportation, and maintain the quality and efficacy of the mask. The light-shielding property of the aluminum foil layer can protect the ingredients in the mask from being destroyed by light, ensuring its stability and effectiveness. The aluminum foil layer is relatively strong and can play a certain protective role, preventing the mask from being damaged by external forces such as squeezing.

[0020] Optionally, the first functional layer is an aluminum oxide layer.

[0021] By adopting the above technical solution, the aluminum oxide layer is more economical in cost compared to the pure aluminum foil layer. Although the barrier and light-shielding properties of the aluminum oxide layer are weaker than those of the pure aluminum foil layer, it still has a certain degree of moisture-proof and anti-oxidation function, which can protect the long-term freshness of the mask to a certain extent.

[0022] Optionally, the first functional layer is an aluminum-plated layer.

[0023] By adopting the above technical scheme, the cost of the aluminized layer is usually lower than that of the aluminum foil layer. The aluminized layer can provide a certain moisture-proof property, which helps to keep the mask dry and fresh. The aluminized layer can prevent oxygen penetration, which helps to extend the shelf life of the active ingredients in the mask. The aluminized layer has a certain light-shielding property, which can protect the light-sensitive ingredients in the mask and prevent them from being degraded by light. The aluminized layer can provide good sealing, which helps to maintain the hygiene of the mask and prevent leakage of contents.

[0024] Optionally, one end of the intermediate composite membrane close to the connecting channel is located between the connecting channel and the fracture structure.

[0025] By adopting the above technical solution, there is some distance between the fracture structure and the connecting channel, so as to prevent the fracture structure from being unable to be heat-sealed and connected with the middle composite film during the bag making process.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. If necessary, based on the characteristics of the mask liquid and the mask cloth, during the production process of the separation bag, replace the upper composite film, the middle composite film and the lower composite film with different materials to protect the mask liquid and the mask cloth.

[0028] 2. The function of the reinforcing strip is to shorten the length of the breaking strip. When the extrusion pressure remains unchanged, the pressure area of ​​the breaking strip becomes smaller and the pressure on the breaking strip becomes larger, which facilitates the separation of the breaking strip from the upper composite membrane or the middle composite membrane and improves the efficiency of the separation of the breaking strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is one of the cross-sectional views of an embodiment of the present application, showing a fracture structure.

[0030] Figure 2 This is the second cross-sectional view of the embodiment of the present application, showing the connecting channel.

[0031] Figure 3 It is one of the partial structural schematic diagrams of the embodiments of the present application, showing the upper composite membrane.

[0032] Figure 4 This is the second partial structural schematic diagram of an embodiment of the present application, showing an intermediate composite membrane.

[0033] Figure 5 This is the third partial structural schematic diagram of the embodiment of the present application, showing the lower composite membrane.

[0034] Explanation of the accompanying drawings: 1. upper composite film; 11. first printing layer; 12. first functional layer; 13. first easy-to-peel layer; 2. middle composite film; 21. second easy-to-peel layer; 22. second functional layer; 23. first heat-sealing layer; 3. lower composite film; 31. second heat-sealing layer; 32. third functional layer; 33. second printing layer; 4. fracture structure; 41. fracture strip; 42. reinforcement strip; 5. membrane liquid cavity; 6. membrane cloth cavity; 7. connecting channel. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1 -Attached Figure 5 This application is described in further detail.

[0036] The embodiment of the present application discloses a bag-in-bag type dry-wet separation bag.

[0037] Combination Figure 1 and Figure 2 As shown, it includes an upper composite membrane 1, an intermediate composite membrane 2 and a lower composite membrane 3. The intermediate composite membrane 2 is located between the upper composite membrane 1 and the lower composite membrane 3. One end of the intermediate composite membrane 2 is flush with the upper composite membrane 1 and the lower composite membrane 3, and the other end is shorter than the upper composite membrane 1 and the lower composite membrane 3. The upper composite membrane 1 and the lower composite membrane 3 enclose a connecting channel 7. The intermediate composite membrane 2 is provided with a connecting portion and a suspended portion. The connecting portion includes two opposite sides of the intermediate composite membrane 2 and a side of the intermediate composite membrane 2 away from the connecting channel 7. The upper composite membrane 1 and the lower composite membrane 3 are both connected to the connecting portion. The suspended portion is connected to the upper composite membrane 1 through a fracture structure 4. The upper composite membrane 1, the intermediate composite membrane 2 and the fracture structure 4 enclose a membrane liquid cavity 5. The lower composite membrane 3 and the intermediate composite membrane 2 enclose a membrane cloth cavity 6. The membrane liquid cavity 5 and the membrane cloth cavity 6 are both connected to the connecting channel 7. The end of the intermediate composite membrane 2 close to the connecting channel 7 is located between the connecting channel 7 and the fracture structure 4. The shortest distance between the inner wall of the connecting channel 7 away from the middle composite membrane 2 and the middle composite membrane 2 is 10mm-30mm, preferably 20mm. If it is greater than 30mm, the capacity of the membrane liquid cavity 5 is small; if it is less than 10mm, the edge sealing of the upper composite membrane 1 and the lower composite membrane 3 is affected.

[0038] Combination Figure 1 and Figure 2 As shown, the breaking structure 4 includes a breaking strip 41 and two reinforcing strips 42. The two reinforcing strips 42 are arranged opposite to each other. The breaking strip 41 is located between the two reinforcing strips 42. The two ends of the breaking strip 41 are respectively fixedly connected to the ends of the two reinforcing strips 42 facing each other. The breaking strip 41 is wavy.

[0039] Combination Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the upper composite film 1 includes a first printing layer 11, a first functional layer 12 connected to the first printing layer 11, and a first easy-to-peel layer 13 connected to the first functional layer 12, the first printing layer 11 and the first functional layer 12 are connected by an adhesive, and the first functional layer 12 and the first easy-to-peel layer 13 are connected by an adhesive. The middle composite film 2 includes a second easy-to-peel layer 21, a second functional layer 22 connected to the second easy-to-peel layer 21, and a first heat-sealing layer 23 connected to the second functional layer 22, the second easy-to-peel layer 21 and the second functional layer 22 are connected by an adhesive, and the second functional layer 22 and the first heat-sealing layer 23 are connected by an adhesive. The lower composite film 3 includes a second heat-sealing layer 31, a third functional layer 32 connected to the second heat-sealing layer 31, and a second printing layer 33 connected to the third functional layer 32, the second heat-sealing layer 31 and the third functional layer 32 are connected by an adhesive, and the third functional layer 32 and the second printing layer 33 are connected by an adhesive. The first functional layer 12 is located between the first printing layer 11 and the first easy-to-peel layer 13, the first easy-to-peel layer 13 is located between the first functional layer 12 and the second easy-to-peel layer 21, the second easy-to-peel layer 21 is located between the first easy-to-peel layer 13 and the second functional layer 22, the second functional layer 22 is located between the first heat-sealing layer 23 and the second easy-to-peel layer 21, the second heat-sealing layer 31 is located between the first heat-sealing layer 23 and the third functional layer 32, and the third functional layer 32 is located between the second heat-sealing layer 31 and the second printing layer 33. The first easy-to-peel layer 13 is connected to the second easy-to-peel layer 21 by heat sealing, the first heat-sealing layer 23 is connected to the second heat-sealing layer 31 by heat sealing, and the end of the first easy-to-peel layer 13 close to the connecting channel 7 is connected to the end of the second heat-sealing layer 31 close to the connecting channel 7 by heat sealing. The breaking strip 41 and the two reinforcing strips 42 are fixedly connected to the side of the first easy-to-peel layer 13 facing the second easy-to-peel layer 21. The first printed layer 11 and the second printed layer 33 are made of PET or OPP, etc. In this embodiment, the first functional layer 12 is an aluminum foil layer. In other embodiments, the first functional layer 12 is an aluminum oxide layer or an aluminum-plated layer. The second functional layer 22 and the third functional layer 32 are made of aluminum foil, aluminum oxide or aluminum-plated layer.

[0040] The implementation principle of a bag-in-bag type dry-wet separation bag in an embodiment of the present application is: when the separation bag is used, the separation bag is squeezed, and the breaking strip 41 is compressed and separated from the upper composite film 1 or the middle composite film 2, so that the membrane liquid cavity 5 and the connecting channel 7 are in a conductive state, and the mask liquid in the membrane liquid cavity 5 enters the membrane cloth cavity 6 through the connecting channel 7, thereby achieving the mixing of the mask liquid and the mask cloth.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A bag-in-bag dry-wet separation bag, characterized in that: The invention comprises an upper composite membrane (1), an intermediate composite membrane (2) and a lower composite membrane (3), wherein the intermediate composite membrane (2) is located between the upper composite membrane (1) and the lower composite membrane (3), one end of the intermediate composite membrane (2) is shorter than the upper composite membrane (1) and the lower composite membrane (3), the intermediate composite membrane (2) is provided with a connecting portion and a suspended portion, the upper composite membrane (1) and the lower composite membrane (3) are both connected to the connecting portion, and the suspended portion is connected to the upper composite membrane (1) through a fracture structure (4). 1), the upper composite membrane (1), the middle composite membrane (2) and the fracture structure (4) enclose a membrane liquid cavity (5), the lower composite membrane (3) and the middle composite membrane (2) enclose a membrane cloth cavity (6), the upper composite membrane (1) and the lower composite membrane (3) enclose a connecting channel (7), the membrane liquid cavity (5) and the membrane cloth cavity (6) are both connected to the connecting channel (7), and the fracture structure (4) is used to separate the membrane liquid cavity (5) and the connecting channel (7).

2. The bag-in-bag dry-wet separation bag according to claim 1, characterized in that: The fracture structure (4) comprises a reinforcement strip (42) and a fracture strip (41) connected to the inner wall of the membrane liquid chamber (5), wherein the reinforcement strip (42) and the fracture strip (41) are connected.

3. The bag-in-bag dry-wet separation bag according to claim 2, characterized in that: There are two reinforcing strips (42), the breaking strip (41) is located between the two reinforcing strips (42), and both ends of the breaking strip (41) are respectively connected to the two reinforcing strips (42).

4. The bag-in-bag dry-wet separation bag according to claim 2, characterized in that: The fracture strip (41) is wavy.

5. The bag-in-bag dry-wet separation bag according to claim 1, characterized in that: The upper composite film (1) comprises a first printed layer (11), a first functional layer (12) connected to the first printed layer (11), and a first easy-peel layer (13) connected to the first functional layer (12); the intermediate composite film (2) comprises a second easy-peel layer (21) and a second functional layer (22) connected to the second easy-peel layer (21); the first functional layer (12) is located between the first printed layer (11) and the first easy-peel layer (13); the first easy-peel layer (13) is located between the first functional layer (12) and the second easy-peel layer (21); and the second easy-peel layer (21) is located between the first easy-peel layer (13) and the second functional layer (22).

6. The bag-in-bag dry-wet separation bag according to claim 5, characterized in that: The intermediate composite film (2) further comprises a first heat-sealing layer (23) connected to the second functional layer (22); the lower composite film (3) comprises a second heat-sealing layer (31), a third functional layer (32) connected to the second heat-sealing layer (31), and a second printing layer (33) connected to the third functional layer (32); the second functional layer (22) is located between the first heat-sealing layer (23) and the second easy-peel layer (21); the second heat-sealing layer (31) is located between the first heat-sealing layer (23) and the third functional layer (32); and the third functional layer (32) is located between the second heat-sealing layer (31) and the second printing layer (33).

7. The bag-in-bag dry-wet separation bag according to claim 5, characterized in that: The first functional layer (12) is an aluminum foil layer.

8. The bag-in-bag dry-wet separation bag according to claim 5, characterized in that: The first functional layer (12) is an aluminum oxide layer.

9. The bag-in-bag dry-wet separation bag according to claim 5, characterized in that: The first functional layer (12) is an aluminum-plated layer.

10. The bag-in-bag dry-wet separation bag according to claim 1, characterized in that: One end of the intermediate composite membrane (2) close to the connecting channel (7) is located between the connecting channel (7) and the fracture structure (4).

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