Drying agent packaging bag

Abstract

The utility model discloses a drying agent packaging bag. The desiccant packaging bag comprises a main body, and a containing space is formed in the main body and used for containing desiccant. The body is provided with a first end and a second end in the length direction, and transverse sealing parts are arranged at the first end and the second end of the body respectively. A longitudinal sealing part is arranged between the first end and the second end of the body and located on one side of the body in the thickness direction, and the two ends of the longitudinal sealing part are connected with a transverse sealing part of the first end of the body and a transverse sealing part of the second end of the body respectively. And the longitudinal sealing part and the transverse sealing part are respectively formed by adopting a heat sealing process. The two ends and the side faces of the main body are sealed, the two transverse sealing parts and the two longitudinal sealing parts are connected into a whole, the overall structure of the packaging bag is firmer, meanwhile, the longitudinal sealing parts and the transverse sealing parts are formed through the heat sealing technology, the risk of sealing leakage can be effectively reduced, sealing is more reliable, the safety risk of medical products can be reduced, and the packaging bag is suitable for being popularized and used. The environment-friendly effect is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of packaging, in particular to a desiccant packaging bag. BACKGROUND

[0002] Desiccants are used in the medical field to protect the quality and stability of medical products. Desiccants are usually packaged in bags, which are usually sealed after the desiccants are placed in the packaging bag. The existing sealing method of the packaging bag is usually to use glue to bond. Although this sealing method has a low cost, the composition of the glue has a certain safety risk to medical products, and uneven glue coating may cause leakage, resulting in desiccant leakage. In addition, glue needs to be frequently added during the production process of the packaging bag, which causes pollution and is not environmentally friendly. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a desiccant packaging bag to reduce the safety risk to medical products.

[0004] In a first aspect, the present application provides a desiccant packaging bag, comprising a main body, the main body having an accommodation space inside, the accommodation space being used to accommodate desiccants; the main body has a first end and a second end along the length direction, and the first end and the second end of the main body are respectively provided with a transverse sealing part. A longitudinal sealing part is arranged between the first end and the second end of the main body, the longitudinal sealing part is located on one side of the thickness direction of the main body, and the two ends of the longitudinal sealing part are respectively connected with the transverse sealing part of the first end of the main body and the transverse sealing part of the second end of the main body; the longitudinal sealing part and the transverse sealing part are respectively formed by a heat sealing process.

[0005] In a specific implementation, the transverse sealing part is provided with a recess structure, and the recess structure extends along the length direction of the main body. The recess structure is a plurality of recess structures arranged along the width direction of the main body, and adjacent recess structures are arranged at intervals.

[0006] In a specific implementation, at least one of the transverse sealing parts of the first end of the main body and the second end of the main body is provided with a through hole. In the width direction of the main body, the through hole is located at the central position of the transverse sealing part.

[0007] In a specific implementation, the shape of the through hole is circular, elliptical or track-shaped.

[0008] In a specific implementation, at least one of the transverse sealing parts of the first end of the main body and the second end of the main body is provided with a notch. In the width direction of the main body, the notch is located at the central position of the transverse sealing part.

[0009] In a specific implementation, the notch is semicircular, semi-elliptical or semi-track-shaped.

[0010] In a specific implementation, the longitudinal seal portion includes a first connecting sheet and a second connecting sheet stacked in the thickness direction of the main body. In the length direction of the main body, the two ends of the first connecting sheet are connected to the transverse seal portion of the first end of the main body and the transverse seal portion of the second end of the main body, respectively; the two ends of the second connecting sheet are connected to the transverse seal portion of the first end of the main body and the transverse seal portion of the second end of the main body, respectively. In the width direction of the main body, one side of the first connecting sheet is connected to one side of the second connecting sheet.

[0011] In a second aspect, the application also provides a method for preparing a desiccant packaging bag, comprising:

[0012] Heat-seal connecting the left and right side edges of the strip-shaped packaging sheet to form a longitudinal seal portion, so that the strip-shaped packaging sheet forms a columnar structure;

[0013] Heat-seal connecting the columnar structure at a preset position in the radial direction of the columnar structure to form a transverse seal portion, which serves as the edge of the first end in the length direction of one packaging bag, and the longitudinal seal portion is located at the central position in the radial direction of the columnar structure;

[0014] Adding a desiccant into the columnar structure;

[0015] Pulling the columnar structure, heat-seal connecting the columnar structure at a position having a preset interval distance from the transverse seal portion to form another transverse seal portion, which simultaneously serves as the edge of the second end in the length direction of the one packaging bag and the edge of the first end in the length direction of another packaging bag, thereby completing the preparation of one desiccant packaging bag;

[0016] Repeating the formation of the transverse seal portions at the preset interval distance, and cutting the transverse seal portions in the radial direction of the columnar structure to obtain a plurality of desiccant packaging bags.

[0017] In a specific implementation, the packaging sheet is cut into a strip shape with a preset width;

[0018] Rolling the strip-shaped packaging sheet into a roll;

[0019] Pulling the rolled packaging sheet to unroll the strip-shaped packaging sheet, and heat-seal connecting the left and right side edges of the strip-shaped packaging sheet to form the longitudinal seal portion.

[0020] In a specific embodiment, a preset pattern is printed on a preset area of one side surface of the packaging sheet by laser printing, and the packaging sheet after laser printing is cut into a strip with the preset width, and the preset pattern is located on the strip-shaped packaging sheet.

[0021] In a specific embodiment, the roll-shaped packaging sheet is unrolled, and the packaging sheet is uniformly passed through a laser printing area along a predetermined track, so that a preset pattern is printed on a preset area of one side surface of the packaging sheet by laser printing.

[0022] Compared with the prior art, the application has the following beneficial effects:

[0023] The desiccant packaging bag provided by the application is sealed at the first end and the second end of the main body through the transverse sealing part, effective closure and reinforcement structure is formed at the two ends of the main body, one side of the main body is sealed through the longitudinal sealing part, and the two transverse sealing parts are connected through the longitudinal sealing part, so that the two ends and the side of the main body are sealed, and the two transverse sealing parts and the longitudinal sealing part are connected as a whole, the overall structure of the packaging bag is more firm, meanwhile, the longitudinal sealing part and the transverse sealing part are formed by using a heat sealing process, which can effectively reduce the risk of leakage sealing, the sealing is more reliable, the desiccant is not easy to leak, and compared with the sealing by using glue, the safety risk of the medical product can be reduced, and the packaging bag is more environmentally friendly.

[0024] The preparation method of the desiccant packaging bag provided by the application connects the left and right two sides of the strip-shaped packaging sheet by heat sealing to form a longitudinal sealing part and form a columnar structure, which can ensure that the longitudinal sealing property of the packaging bag is good, effectively prevent the desiccant from leaking, and protect the product quality. The longitudinal sealing part is located at the central position in the radial direction of the columnar structure, which is helpful to uniformly distribute stress in the length direction of the entire packaging bag, avoids uneven stress caused by the position deviation of the longitudinal sealing part, and thus improves the overall structural stability and durability of the packaging bag. The transverse sealing part is formed by heat sealing at a preset position in the radial direction of the columnar structure, which serves as the end edge of the packaging bag and provides reliable end sealing for the packaging bag, further enhances the firmness of the packaging, and prevents the desiccant from leaking from the end. Multiple transverse sealing parts are repeatedly formed at preset interval distances, and such precise positioning can ensure the size consistency and stability of each packaging bag, meeting the strict requirements of the pharmaceutical industry for uniform specifications. The multiple transverse sealing parts are cut along the radial direction, which can realize batch production and improve production efficiency. The heat sealing process is used in the packaging process, which can avoid the use of adhesives that may contaminate the medicine, thereby protecting the hygiene and safety of the pharmaceutical industry and meeting the strict standards of the pharmaceutical industry production. The preparation method is relatively simple and the operation process is easy for automatic production, which can not only improve the production efficiency but also reduce the labor cost, and through precise size control and efficient material utilization, the production cost can be further reduced. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1A structure schematic diagram of the desiccant packaging bag provided by the present application is shown.

[0026] Figure 2 A flow chart of the preparation method of the desiccant packaging bag provided by the present application is shown.

[0027] Figure 3 A flow chart of the laser printing in the preparation method of the desiccant packaging bag provided by the present application is shown.

[0028] Reference signs:

[0029] 1 - main body; 11 - transverse sealing part; 12 - longitudinal sealing part; 111 - concave structure; 112 - notch; 2 - packaging sheet; 3 - unwinding roller; 4 - deviation rectifier; 5 - tension roller; 6 - driven roller; 7 - laser printer; 8 - slitter. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the present application more clear, the following will further describe the embodiments of the present application in combination with the drawings. However, the example embodiments can be implemented in various forms, and should not be understood as being limited to the embodiments set forth herein. The same reference signs in the drawings represent the same or similar structures, and thus repeated description thereof will be omitted. The words expressing position and direction described in the embodiments of the present application are described with the drawings as an example, but can also be changed as needed, and the changes made are included in the protection scope of the present application. The drawings of the embodiments of the present application are only used to show the relative position relationship and do not represent the real proportion.

[0031] In the following description, specific details are set forth in order to facilitate understanding of the present application, but the embodiments of the present application can be implemented in various other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the embodiments of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0032] First refer to Figure 1 , Figure 1 A structure schematic diagram of the desiccant packaging bag provided by the present application is shown. As Figure 1 shown, the desiccant packaging bag provided by the embodiments of the present application can include a main body 1, which has an accommodation space inside for accommodating a desiccant. Referring to Figure 1The coordinate direction in the figure is shown by the x-axis, and the direction shown by the x-axis represents the length direction of the main body 1. The main body 1 has a first end and a second end in the length direction. The first end and the second end of the main body 1 are respectively provided with a transverse sealing part 11. A longitudinal sealing part 12 is arranged between the first end and the second end of the main body 1. The longitudinal sealing part 12 is located on one side of the thickness direction of the main body 1. The two ends of the longitudinal sealing part 12 are respectively connected with the transverse sealing part 11 of the first end of the main body 1 and the transverse sealing part 11 of the second end of the main body 1. The longitudinal sealing part 12 and the transverse sealing part 11 are respectively formed by a heat sealing process.

[0033] The first end and the second end of the main body 1 are respectively sealed by the transverse sealing part 11, and effective sealing and reinforcing structures are formed at the two ends of the main body 1. One side of the main body 1 is sealed by the longitudinal sealing part 12, and the two transverse sealing parts 11 are connected by the longitudinal sealing part 12. In this way, the two ends and the side of the main body 1 are all sealed, and the two transverse sealing parts 11 and the longitudinal sealing part 12 are connected as a whole. The overall structure of the packaging bag is more firm. At the same time, the longitudinal sealing part 12 and the transverse sealing part 11 are respectively formed by a heat sealing process, which can effectively reduce the risk of leakage sealing, make the sealing more reliable, prevent the desiccant from leaking, and reduce the safety risk of the pharmaceutical product compared with sealing by glue, and is more environmentally friendly.

[0034] In specific implementation, the longitudinal sealing part 12 and the transverse sealing part 11 are respectively formed by a heat sealing process. The heat sealing process parameters (such as temperature, pressure, and ultrasonic wave wavelength, frequency, power density, etc.) can be adjusted to obtain the expected packaging effect, so that the packaging effect is easier to control, the probability of problems such as virtual sealing or scalding can be reduced, and the packaging bag yield can be effectively improved.

[0035] The heat sealing process can be ultrasonic wave heat sealing or electric pulse heat sealing. The ultrasonic wave heat sealing is to convert the energy of ultrasonic wave vibration into friction energy and transfer it to the fusion line of the material to be connected. The friction generates heat, and at the same time, pressure is applied to the material to fully activate the molecules and form a molecular layer fusion. The process parameters involved in the ultrasonic wave heat sealing include ultrasonic wave time, which is the time from the start to the stop of the ultrasonic wave action. The time range can be 0-4s, for example, 0.9s. The cooling and solidification time can be 0-2s, for example, 0.2s. The electric pulse heat sealing is to heat and cool the material for a short time by instant power-on and power-off of the electric heating wire. The process parameters involved in the electric pulse heat sealing include heating times, which can be 0-5 times, for example, 2 times. The single heating time can be 0-3s, for example, 0.5s. The single heating interval time can be 0-3s, for example, 0.2s.

[0036] The transversal seal is in the form of a wide tooth pattern after heat sealing, and the ultrasonic wave needs to apply pressure to make the welding head fully contact the welding surface to conduct the ultrasonic wave energy, so a certain pressure is needed, and the tooth pattern formed by the transversal seal also needs a certain pressure, so the ultrasonic heat sealing mode is selected. The longitudinal seal is in the form of an elongated strip after heat sealing, and the forming tube of the longitudinal seal cannot apply too much pressure, and the electric heating wire of the electric pulse cannot apply too much pressure, and the longitudinal seal mainly relies on the hot melting mode, so the requirement for pressure is not high, and the electric pulse heat sealing mode is selected.

[0037] In a specific implementation, the material of the main body 1 can be non-woven fabric, DuPont paper, etc. The DuPont paper is a high-density polyethylene (HDPE) material produced by DuPont Company, which combines the material properties of paper, film and cloth, has the characteristics of waterproof, breathable, light weight, toughness, tear resistance, puncture resistance, high reflectivity, diffuse reflectivity, ultraviolet resistance, unique texture and touch, and can be recycled. The transversal seal part 11 can be formed by ultrasonic heat sealing process, and the size of the transversal seal part 11 can be 19x11 mm. The longitudinal seal part 12 can be formed by electric pulse heat sealing process, and the size of the longitudinal seal part 12 can be 32x3 mm. The size of the whole packaging bag can be 42x19 mm.

[0038] As a possible implementation, the transversal seal part 11 is provided with a recess structure 111 extending along the length direction of the main body 1. The recess structure 111 is a plurality of recess structures 111 arranged along the width direction of the main body 1, and adjacent recess structures 111 are arranged at intervals. The design of the recess structure 111 can increase the area of the transversal seal part 11. Taking the non-woven fabric as an example, the recess structure 111 can increase the sealing contact area of the non-woven fabric, thereby improving the overall sealing performance of the packaging bag, ensuring the drying effect of the desiccant, prolonging the service life, and further protecting the pharmaceutical products from moisture and deterioration. Moreover, when the packaging bag is subjected to external pressure, the recess structure 111 can play a certain buffering role, disperse the pressure, avoid the sealing failure of the transversal seal part 11 due to excessive local pressure, make the packaging bag more resistant to extrusion during storage, transportation, use and the like, and ensure the safety of the desiccant and the pharmaceutical products. The plurality of recess structures 111 arranged at intervals can change the mechanical structure of the transversal seal part 11 to a certain extent, increase the rigidity and stability of the transversal seal part 11, and further reduce the curling, deformation and the like of the packaging bag caused by its own stress or external factors during storage, transportation, use and the like, so that the packaging bag can maintain a relatively flat state, and ensure the reliability of the function and use effect of the packaging bag. In addition, the plurality of recess structures 111 arranged along the width direction of the main body 1 and arranged at intervals can provide a position for users to easily apply force and tear open when the packaging bag needs to be opened, so as to facilitate the removal of the desiccant for replacement or reuse.

[0039] In a possible implementation, at least one of the transverse sealing portions 11 at the first end of the main body 1 and the transverse sealing portions 11 at the second end of the main body 1 is provided with a through hole. In actual production, a plurality of packaging bags can be continuously produced and then cut into individual packaging bags. The through hole is used for sensor positioning during cutting, and the cutting position avoids the through hole. In the width direction of the main body 1, the through hole is located at the central position of the transverse sealing portion 11, so that the transverse sealing portion 11 is more uniform when stressed, avoiding the situation that the local stress of the transverse sealing portion 11 is too large due to the position deviation of the through hole, and stress concentration phenomenon occurs, thereby enhancing the overall load-bearing capacity and anti-deformation ability of the transverse sealing portion 11.

[0040] In actual implementation, the shape of the through hole can be circular, oval, or track-shaped. For example, the through hole is oval, and the size of the through hole can be 4x2mm.

[0041] In another possible implementation, at least one of the transverse sealing portions 11 at the first end of the main body 1 and the transverse sealing portions 11 at the second end of the main body 1 is provided with a notch 112. The shape of the notch 112 can be semicircular, semi-oval, or semi-track-shaped. The notch 112 is used for sensor positioning during cutting, and the cutting position passes through the notch 112. For example, the notches 112 of the transverse sealing portions 11 of two adjacent packaging bags before cutting form a complete oval, and the notches 112 of the transverse sealing portions 11 of the two packaging bags after cutting are semi-oval-shaped, respectively. In the width direction of the main body 1, the notch 112 is located at the central position of the transverse sealing portion 11, so that the transverse sealing portion 11 is more uniform when stressed.

[0042] As a possible implementation, the longitudinal sealing portion 12 includes a first connecting piece and a second connecting piece stacked in the thickness direction of the main body 1. In the length direction of the main body 1, the two ends of the first connecting piece are respectively connected with the transverse sealing portion 11 at the first end of the main body 1 and the transverse sealing portion 11 at the second end of the main body 1; the two ends of the second connecting piece are respectively connected with the transverse sealing portion 11 at the first end of the main body 1 and the transverse sealing portion 11 at the second end of the main body 1. Compared with a single connecting piece, the double connecting piece structure can better combine the transverse sealing portion 11 and the longitudinal sealing portion 12 into a whole, can enhance the structural strength of the main body 1 in various directions, and make the whole main body 1 structure more stable, avoiding problems such as loosening and separation of the connection part during use. When the main body 1 is subjected to external force, the longitudinal sealing portion 12 thus designed can disperse the force to the two connecting pieces, and then transmit the force to the transverse sealing portion 11 and other parts of the main body 1 through the two connecting pieces, which can avoid the situation that the local stress of a single connecting piece is concentrated when stressed, thereby improving the load-bearing capacity of the structure, enabling the main body 1 to withstand greater external force and pressure, and reducing the risk of structural damage.

[0043] In the width direction of the main body 1, one side edge of the first connecting piece is connected with one side edge of the second connecting piece, a tighter sealing boundary can be formed at the connection position, the sealing performance of the connection position can be further improved, the desiccant inside the main body 1 can be prevented from leaking from the side edge of the longitudinal sealing portion 12, and the sealing effect is ensured.

[0044] Referring to Figure 2 , Figure 2 A flowchart of the desiccant packaging bag preparation method provided by the application is shown, as shown in Figure 2 The application also provides a desiccant packaging bag preparation method, which comprises the following steps:

[0045] The left and right side edges of the strip-shaped packaging piece are heat-sealed and connected to form a longitudinal sealing portion 12, so that the strip-shaped packaging piece forms a columnar structure; the left and right side edges of the longitudinal sealing portion 12 are the first connecting piece and the second connecting piece respectively;

[0046] Along the radial direction of the columnar structure, the columnar structure is heat-sealed and connected at a preset position of the columnar structure to form a transverse sealing portion 11; one transverse sealing portion 11 serves as the edge of the first end in the length direction of one packaging bag, and the longitudinal sealing portion 12 is located at the central position in the radial direction of the columnar structure;

[0047] The desiccant is added into the columnar structure;

[0048] The columnar structure is pulled, and the columnar structure is heat-sealed and connected at a position having a preset interval distance from the one transverse sealing portion 11 to form another transverse sealing portion 11; the other transverse sealing portion 11 simultaneously serves as the edge of the second end in the length direction of one packaging bag and the edge of the first end in the length direction of another packaging bag, and the preparation of one desiccant packaging bag is completed;

[0049] A plurality of transverse sealing portions 11 are repeatedly formed at the preset interval distance, and the transverse sealing portions 11 are cut along the radial direction of the columnar structure to obtain a plurality of desiccant packaging bags.

[0050] This preparation method heat-seals the left and right sides of the strip-shaped packaging sheet to form a longitudinal seal 12, constituting a columnar structure. This ensures good longitudinal sealing of the packaging bag, effectively preventing desiccant leakage and guaranteeing product quality. The longitudinal seal 12 is centrally located radially within the columnar structure, which helps to evenly distribute stress along the entire length of the packaging bag, avoiding uneven stress due to misalignment of the longitudinal seal 12, thereby improving the overall structural stability and durability of the packaging bag. A transverse seal 11 is formed by heat-sealing along the radial direction of the columnar structure at a predetermined position. This serves as the end edge of the packaging bag, providing a reliable end seal and further enhancing the sealing's strength, preventing desiccant leakage from the ends. Multiple transverse seals 11 are repeatedly formed at predetermined intervals. This precise positioning ensures the dimensional consistency and stability of each packaging bag, meeting the stringent requirements of the pharmaceutical industry for standardized specifications. Forming multiple transverse seals 11 and then cutting radially enables mass production, improving production efficiency. The heat-sealing process avoids the use of adhesives such as glue, which may contaminate the drug, ensuring hygiene and safety in the pharmaceutical industry and meeting its stringent production standards. This preparation method is relatively simple and the operation process is easy to automate. It can not only improve production efficiency but also reduce labor costs. At the same time, it can further reduce production costs through precise size control and efficient material utilization.

[0051] In practice, the packaging sheet is cut into strips of a preset width;

[0052] The strip-shaped packaging sheet is rolled up;

[0053] Pulling the rolled-up packaging sheet causes the strip-shaped packaging sheet to unfold, and the left and right sides of the strip-shaped packaging sheet are heat-sealed together to form a longitudinal seal 12.

[0054] Cutting the packaging strips into strips of a preset width allows for precise control of their dimensions. This enables flexible adjustment of the packaging bag width to meet diverse packaging needs, enhancing production flexibility and adaptability. Uniform width ensures consistent bag specifications, facilitating subsequent use. Furthermore, the strip shape facilitates shaping and cutting during processing, ensuring full utilization of the packaging strips and reducing material waste. Rolling up the strips results in smaller footprints, simplifying storage and transportation, minimizing the possibility of damage during handling. The roll form also facilitates continuous feeding on the production line, improving production continuity and efficiency, reducing labor costs, and ensuring the stability and consistency of the longitudinal sealing section 12.

[0055] In practice, a preset pattern is laser-printed on a preset area on one side surface of the package sheet. The laser-printed package sheet is then cut into strips of a preset width, with the preset pattern located on the strips of the package sheet.

[0056] Laser printing technology enables high-precision, high-definition pattern printing. A pre-defined pattern is laser-printed onto a predetermined area on one side of the packaging sheet, allowing for precise product identification. For desiccant packaging bags, accurate pattern markings aid pharmaceutical manufacturers in product management and quality traceability, while also facilitating consumers' and healthcare professionals' understanding of desiccant information and ensuring safe use. Because the pattern is printed before cutting, the pre-defined pattern is accurately positioned on the strip-shaped packaging sheet, ensuring proper placement and neat arrangement on the subsequently manufactured packaging bag, preventing pattern misalignment or missing parts, and guaranteeing the standardization and consistency of product packaging.

[0057] Compared to ink printing, laser printing is less polluting, eliminates the risk of ink smearing, and is safer. Furthermore, laser printing is a non-contact processing method, preventing mechanical damage to the packaging sheet during the printing process, thus better protecting the material and performance of the packaging sheet and ensuring the stability of the packaging bag's quality.

[0058] In practice, the rolled-up packaging sheet is unrolled and moved along a predetermined trajectory at a constant speed through the laser printing area, so that a predetermined pattern is laser-printed on a predetermined area on one side surface of the packaging sheet. Specifically, for example... Figure 3 As shown, the rolled package sheet 2 can be mounted on the unwinding roller 3. The unwinding roller 3 and the tension roller 5 allow the package sheet 2 to pass through the printing surface of the laser printer 7 at a uniform speed. There can be two tension rollers 5, respectively located on the feed side and the output side of the laser printer 7. The driven roller 6 can be used to tension the package sheet 2. The web guiding device 4 can be used to keep the package sheet 2 stable in the left and right direction, allowing it to pass through the laser printer 7 along a predetermined trajectory. The preset pattern is input into the laser printer 7, and the laser printer 7 generates a laser beam at a fixed position to etch the preset pattern onto the package sheet 2, completing the laser printing of the package sheet 2. The output side of the laser printer 7 can be equipped with a slitting machine 8. The package sheet 2 passes sequentially through the web guiding device 4, tension roller 5, driven roller 6, laser printer 7, driven roller 6, tension roller 5, and slitting machine 8. After laser printing is completed, the package sheet 2 is slitted by the slitting machine 8 to obtain a package sheet of the preset width.

[0059] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited to the above embodiments. Obviously, those skilled in the art can make various modifications and variations to this application without departing from the scope and spirit of this application. If these modifications and variations fall within the scope of the claims of this application and their equivalents, then the intent of this application also includes these modifications and variations.

Claims

1. A desiccant packaging bag characterized by, The application relates to a desiccant container. The main body has a containing space for containing a desiccant; the main body has a first end and a second end in the length direction; the first end and the second end of the main body are respectively provided with a transverse sealing part; A longitudinal sealing part is arranged between the first end and the second end of the main body, and the longitudinal sealing part is located on one side of the thickness direction of the main body; the two ends of the longitudinal sealing part are respectively connected with the transverse sealing part of the first end of the main body and the transverse sealing part of the second end of the main body; the longitudinal sealing part and the transverse sealing part are respectively formed by a heat sealing process.

2. The desiccant packaging pouch of claim 1, wherein, The transverse sealing part is provided with a recess structure which extends along the length direction of the main body.

3. The desiccant packaging pouch of claim 2, wherein, The recess structure is a plurality of recess structures which are arranged in the width direction of the main body, and adjacent recess structures are arranged at intervals.

4. The desiccant packaging pouch of claim 1, wherein, At least one of the transverse sealing parts of the first end of the main body and the second end of the main body is provided with a through hole.

5. The desiccant packaging pouch of claim 4, wherein, In the width direction of the main body, the through hole is located at the central position of the transverse sealing part.

6. The desiccant packaging pouch according to claim 4 or 5, characterized in that, The shape of the through hole is circular, elliptical or track-shaped.

7. The desiccant packaging pouch of claim 1, wherein, At least one of the transverse sealing parts of the first end of the main body and the second end of the main body is provided with a notch.

8. The desiccant packaging pouch of claim 7, wherein, In the width direction of the main body, the notch is located at the central position of the transverse sealing part.

9. The desiccant packaging pouch according to claim 7 or 8, characterized in that, The shape of the notch is semicircular, semi-elliptical or semi-track-shaped.

10. The desiccant packaging pouch of claim 1, wherein, The longitudinal sealing part comprises a first connecting sheet and a second connecting sheet which are arranged in the thickness direction of the main body; In the length direction of the main body, the two ends of the first connecting sheet are respectively connected with the transverse sealing part of the first end of the main body and the transverse sealing part of the second end of the main body; the two ends of the second connecting sheet are respectively connected with the transverse sealing part of the first end of the main body and the transverse sealing part of the second end of the main body; In the width direction of the main body, one side edge of the first connecting sheet is connected with one side edge of the second connecting sheet.

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