Buffering, shock-proof and puncture-proof express packaging bag

Abstract

The invention provides a buffering, shock-proof and puncture-proof express packaging bag which comprises a packaging bag body which sequentially comprises an outer film, an outer diaphragm, an inner diaphragm and an inner film from outside to inside, the outer film, the outer diaphragm, the inner diaphragm and the inner film are in a cylindrical sleeve shape, and the upper ends and the lower ends of the outer film, the outer diaphragm, the inner diaphragm and the inner film are mutually bonded through hot melting; a first space filled with gas is formed between the outer membrane and the outer diaphragm, a second space filled with protective silica gel is formed between the outer diaphragm and the inner diaphragm, a third space is formed between the inner diaphragm and the inner membrane, and a sensing membrane, a pressure sensor electrically connected with the sensing membrane and a warning lamp electrically connected with the pressure sensor are arranged in the third space. According to the express packaging bag, due to the fact that the packaging bag body is provided with the first space filled with the gas and the second space filled with the protective silica gel, the safety of objects in the express packaging bag can still be guaranteed after the express packaging bag is subjected to various impacts or collisions in the warehouse-out process, the transportation process, the transfer process and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of express delivery bags or packaging bags, and particularly relates to an express delivery packaging bag with buffering, shockproof and puncture-proof functions. Background Art

[0002] An express delivery bag refers to a bag used for packaging documents, bills, materials, goods, etc. in the express delivery industry. It is also known as a courier bag, mailing bag, or express delivery packaging bag. With the rapid development of the express delivery industry, in order to facilitate people's work and life, using express delivery to send items and documents has become one of the most convenient ways.

[0003] However, during the processes of storage, transportation, and transshipment, the express delivery packaging bag will be subjected to various impacts or collisions. Therefore, in order to ensure the safety of the items in the express delivery packaging bag, an express delivery packaging bag with high barrier performance is required. And there are currently behaviors of someone using a syringe or injection tube to pierce the express delivery packaging bag and inject unknown liquids into it, resulting in a reduction in the practicality and safety of the express delivery packaging bag. Therefore, the existing technology has certain limitations. Summary of the Invention

[0004] The present invention is made to solve the above problems, and its purpose is to provide an express delivery packaging bag with buffering, shockproof and puncture-proof functions.

[0005] The present invention provides an express delivery packaging bag with buffering, shockproof and puncture-proof functions, including a packaging bag main body and a sealing film, having a lower fixed sealing end and an upper movable opening end. The sealing film is adhesively bonded to the upper movable opening end of the packaging bag main body by hot melting, and has the following characteristics: the packaging bag main body sequentially includes an outer film, an outer diaphragm, an inner diaphragm, and an inner film, all of which are in the shape of a cylindrical sleeve from the outside to the inside. The upper and lower ends of the outer film, the outer diaphragm, the inner diaphragm, and the inner film are adhesively bonded to each other by hot melting.

[0006] A first space filled with gas is provided between the outer film and the outer diaphragm, a second space filled with protective silica gel is provided between the outer diaphragm and the inner diaphragm, a third space is provided between the inner diaphragm and the inner film, and an induction film, a pressure sensor electrically connected to the induction film, and a warning light electrically connected to the pressure sensor are provided inside the third space.

[0007] Among them, the lower end is heat-sealed to form the lower fixed sealing end of the packaging bag main body, and the upper end is the upper movable opening end of the packaging bag main body.

[0008] In the express delivery packaging bag with buffering, shockproof and puncture-proof functions provided by the present invention, it can also have the following characteristics: an inflation port communicating with the first space is provided on the outer film, and a one-way valve is provided on the inflation port.

[0009] In the express delivery packaging bag with buffering, shockproof and puncture-proof provided by the present invention, it can also have the following characteristics: an adhesive strip for pasting on the outer film to seal the upper movable opening end is provided on the sealing film, and a release film is provided on the adhesive strip.

[0010] In the express delivery packaging bag with buffering, shockproof and puncture-proof provided by the present invention, it can also have the following characteristics: the outer film, the outer diaphragm, the inner diaphragm and the inner film all include a five-layer structure. Among them, the first layer and the fifth layer are LLDPE layers, the second layer and the fourth layer are TIE bonding resin layers, and the third layer is a PA layer or an EVOH layer.

[0011] In the express delivery packaging bag with buffering, shockproof and puncture-proof provided by the present invention, it can also have the following characteristics: the dosage of PA particles or EVOH particles in the third layer accounts for 5%-10% of the total particle mass of the film.

[0012] In the express delivery packaging bag with buffering, shockproof and puncture-proof provided by the present invention, it can also have the following characteristics: PBAT degradation particles are added to the raw materials for preparing the outer film and the inner film, and the added amount of PBAT degradation particles accounts for 10%-60% of the total particle mass of the film.

[0013] In the express delivery packaging bag with buffering, shockproof and puncture-proof provided by the present invention, it can also have the following characteristics: PLA degradation particles are added to the raw materials for preparing the outer diaphragm and the inner diaphragm, and the added amount of PLA degradation particles accounts for 10%-50% of the total particle mass of the film.

[0014] In the express delivery packaging bag with buffering, shockproof and puncture-proof provided by the present invention, it can also have the following characteristics: the transverse tensile strength of the packaging bag body is 23-31 MPa, the longitudinal tensile strength is 24-29 MPa, the transverse elongation at break is 650-800%, and the longitudinal elongation at break is 700-750%.

[0015] Functions and effects of the invention

[0016] According to the express delivery packaging bag with buffering, shockproof and puncture-proof involved in the present invention, because the packaging bag body has a first space filled with gas and a second space filled with protective silica gel, so after the express delivery packaging bag in the present invention is subjected to various impacts or collisions during the processes of leaving the warehouse, transportation and transshipment, etc., it can still ensure the safety of the items in the express delivery packaging bag. And because the packaging bag body has a third space internally provided with an induction film, a pressure sensor and a warning light, so when someone uses a syringe or an injection tube to puncture the express delivery packaging bag and is about to inject an unknown liquid into the express delivery packaging bag, the induction film will also be punctured by the syringe or the injection tube. At this time, the pressure sensor will transmit the sensed signal to the warning light, so that the warning light will light up, thereby warning people that this express delivery packaging bag has been punctured. Therefore, the practicability and safety of the express delivery packaging bag can be improved, and the practical effect during the use of the present invention is ensured. Description of the Drawings

[0017] Figure 1 is a schematic diagram of the express delivery packaging bag in the embodiment of the present invention;

[0018] Figure 2 is a partial cross-sectional view of the packaging bag body in the embodiment of the present invention;

[0019] Figure 3 is a cross-sectional view of the sealing film in the embodiment of the present invention.

[0020] Description of the Reference Numerals:

[0021] 10. Packaging bag body; 11. Outer film; 12. Outer diaphragm; 13. Inner diaphragm; 14. Inner film; 15. First space; 16. Second space; 17. Third space; 171. Inductive film; 172. Pressure sensor; 173. Warning lamp; 18. Inflation port; 19. Check valve; 20. Sealing film; 21. Adhesive strip; 22. Release film. Detailed Embodiments

[0022] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the following embodiments will specifically describe the present invention in conjunction with the drawings.

[0023] Embodiment

[0024] Figure 1 is a schematic diagram of the express delivery packaging bag of the present invention, Figure 2 is a partial cross-sectional view of the packaging bag body of the present invention, Figure 3 is a cross-sectional view of the sealing film of the present invention.

[0025] As Figures 1 to 3 shown, this embodiment provides a shock-proof, anti-puncture express delivery packaging bag, including: a packaging bag body 10 and a sealing film 20.

[0026] As Figures 1 to 3As shown, the packaging bag body 10 has a lower fixed sealing end and an upper movable opening end. The packaging bag body 10 sequentially includes an outer film 11, an outer diaphragm 12, an inner diaphragm 13, and an inner film 14, all of which are in the shape of cylindrical sleeves from outside to inside. The upper and lower ends of the outer film 11, the outer diaphragm 12, the inner diaphragm 13, and the inner film 14 are adhesively bonded to each other by heat melting. A first space 15 filled with gas is between the outer film 11 and the outer diaphragm 12, a second space 16 filled with protective silica gel is between the outer diaphragm 12 and the inner diaphragm 13, a third space 17 is between the inner diaphragm 13 and the inner film 14, and an induction film 171, a pressure sensor 172 electrically connected to the induction film 171, and a warning light 173 electrically connected to the pressure sensor 172 are provided inside the third space 17. Among them, the lower end is heat-sealed to form the lower fixed sealing end of the packaging bag body 10, and the upper end is the upper movable opening end of the packaging bag body 10.

[0027] In this embodiment, an inflation port 18 communicating with the first space 15 is provided on the outer film 11, and a one-way valve 19 is provided on the inflation port 18. Among them, the one-way valve 19 is preferably a rubber or plastic one-way valve 19.

[0028] In this embodiment, the protective silica gel is preferably the silica gel filler commonly used in the prior art.

[0029] In this embodiment, the light emitted by the warning light 173 can penetrate the outer film 11, the outer diaphragm 12, the inner diaphragm 13, and the protective silica gel. Thus, when the warning light 173 is on, people can directly see the light and get a warning.

[0030] In this embodiment, the outer film 11, the outer diaphragm 12, the inner diaphragm 13, and the inner film 14 all include a five-layer structure. Among them, the first and fifth layers are LLDPE layers, the second and fourth layers are TIE adhesive resin layers, and the third layer is a PA layer or an EVOH layer.

[0031] In this embodiment, the dosage of PA particles or EVOH particles in the third layer accounts for 5%-10% of the total mass of the particles used in the film.

[0032] In this embodiment, PBAT degradation particles are added to the raw materials for preparing the outer film 11 and the inner film 14, and the added amount of PBAT degradation particles accounts for 10% - 60% of the total mass of the particles used in the film.

[0033] In this embodiment, PLA degradation particles are added to the raw materials for preparing the outer diaphragm 12 and the inner diaphragm 13, and the added amount of PLA degradation particles accounts for 10% - 50% of the total mass of the particles used in the film.

[0034] In this embodiment, the transverse tensile strength of the packaging bag body 10 is 23-31 MPa, the longitudinal tensile strength is 24-29 MPa, the transverse elongation at break is 650-800%, and the longitudinal elongation at break is 700-750%.

[0035] As Figures 1 to 3 shown, the sealing film 20 is adhesively bonded to the upper movable opening end of the packaging bag body 10 by hot melting. In this embodiment, an adhesive strip 21 for pasting on the outer film 11 to close the upper movable opening end is provided on the sealing film 20, and a release film 22 is provided on the adhesive strip 21.

[0036] Functions and effects of the embodiment

[0037] According to the express delivery packaging bag with buffer, shockproof and puncture-proof functions involved in the present invention, since the packaging bag body has a first space filled with gas and a second space filled with protective silica gel, the express delivery packaging bag of the present invention can still ensure the safety of the items in the express delivery packaging bag after being subjected to various impacts or collisions during the processes of leaving the warehouse, transportation, and transshipment. Moreover, since the packaging bag body has a third space internally provided with an induction film, a pressure sensor, and a warning light, when someone uses a syringe or injection tube to puncture the express delivery packaging bag and is about to inject unknown liquid into the express delivery packaging bag, the induction film will also be punctured by the syringe or injection tube. At this time, the pressure sensor will transmit the sensed signal to the warning light, so that the warning light will light up, thereby warning people that this express delivery packaging bag has been punctured. Therefore, the practicality and safety of the express delivery packaging bag can be improved, and the practical effect during the use of the present invention can be ensured.

[0038] The above embodiments are preferred cases of the present invention and are not used to limit the protection scope of the present invention.

Claims

1. A courier packaging bag with shock buffering, earthquake prevention and puncture prevention, comprising a packaging bag body and a sealing film. The packaging bag body has a lower fixed sealing end and an upper movable opening end. The sealing film is adhesively bonded to the upper movable opening end of the packaging bag body by hot melting. It is characterized in that: The packaging bag body successively includes an outer film, an outer diaphragm, an inner diaphragm, and an inner film, all of which are in the shape of a cylindrical sleeve from outside to inside. The upper and lower ends of the outer film, the outer diaphragm, the inner diaphragm, and the inner film are adhesively bonded to each other by hot melting. There is a first space filled with gas between the outer film and the outer diaphragm. There is a second space filled with protective silica gel between the outer diaphragm and the inner diaphragm. There is a third space between the inner diaphragm and the inner film. An induction film, a pressure sensor electrically connected to the induction film, and a warning light electrically connected to the pressure sensor are provided inside the third space. Among them, the lower end is heat-sealed to form the lower fixed sealing end of the packaging bag body, and the upper end is the upper movable opening end of the packaging bag body.

2. The courier packaging bag with shock buffering, earthquake prevention and puncture prevention according to claim 1, characterized in that: Among them, An inflation port communicating with the first space is provided on the outer film, and a one-way valve is provided on the inflation port.

3. The courier packaging bag with shock buffering, earthquake prevention and puncture prevention according to claim 1, characterized in that: Among them, An adhesive strip for pasting on the outer film to close the upper movable opening end is provided on the sealing film, and a release film is provided on the adhesive strip.

4. The courier packaging bag with shock buffering, earthquake prevention and puncture prevention according to claim 1, characterized in that: The outer film, the outer diaphragm, the inner diaphragm, and the inner film all include a five-layer structure. Among them, the first layer and the fifth layer are LLDPE layers, the second layer and the fourth layer are TIE adhesive resin layers, and the third layer is a PA layer or an EVOH layer.

5. The courier packaging bag with shock buffering, earthquake prevention and puncture prevention according to claim 4, characterized in that: Among them, The dosage of PA particles or EVOH particles in the third layer accounts for 5%-10% of the total particle mass of the film.

6. The courier packaging bag with shock buffering, earthquake prevention and puncture prevention according to claim 1, characterized in that: Among them, PBAT degradation particles are added to the preparation raw materials of the outer film and the inner film, and the addition amount of the PBAT degradation particles accounts for 10% - 60% of the total particle mass of the film.

7. The courier packaging bag with shock buffering, earthquake prevention and puncture prevention according to claim 1, characterized in that: Among them, PLA degradation particles are added to the preparation raw materials of the outer diaphragm and the inner diaphragm, and the addition amount of the PLA degradation particles accounts for 10% - 50% of the total particle mass of the film.

8. The courier packaging bag with shock buffering, earthquake prevention and puncture prevention according to claim 1, characterized in that: Among them, The transverse tensile strength of the packaging bag body is 23 - 31 MPa, the longitudinal tensile strength is 24 - 29 MPa, the transverse elongation at break is 650 - 800%, and the longitudinal elongation at break is 700 - 750%.

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