Laundry detergent packaging bag

Abstract

The utility model discloses a laundry detergent packaging bag which comprises a bag body front film, a bag body rear film and a bag bottom film, the bag body front film, the bag body rear film and the bag bottom film are mutually sealed through heat sealing, the edges of the bag body front film, the bag body rear film and the bag bottom film are mutually attached to form heat sealing lines, the front side and the rear side of the bag bottom film respectively extend downwards to form supporting films, and the bottom edges of the supporting films are parallel to the bag bottom film. The left end and the right end of the supporting membrane are flush with a heat sealing line and extend downwards to form a vertical side edge, then the corner bevel edge extends inwards towards the bottom edge of the supporting membrane in a corner mode, the corner bevel edge is connected to the bottom edge of the supporting membrane, and when the supporting membrane is placed on a placing face, the supporting membrane can provide a relatively large contact area, so that the heat sealing effect is improved. A polygonal corner structure formed by the vertical side edges, the corner bevel edges and the bottom edges can abut against structures in various directions, a plurality of optional supporting positions are equivalently provided when an uneven placing face is met, an aluminum metal strip is further arranged in the supporting membrane, and the supporting structure can be kept at a specific angle and is kept stable enough due to the good plasticity of the aluminum metal strip.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging, in particular to a laundry detergent packaging bag. Background Art

[0002] Packaging bags are bags used to package various items, making them easy to transport and store during production and distribution. They are often made of film. Laundry detergent packaging bags are specifically designed to hold laundry detergent. They typically utilize the common stand-up pouch packaging structure for liquid products. The bottom edge of the composite film forming the bag's body serves as a support structure on the surface it sits on, allowing it to stand upright independently, regardless of whether the bag is open or closed.

[0003] The existing self-supporting bag structure used in laundry detergent packaging bags is relatively simple, with only the bottom edge of the composite membrane in contact with the placement surface, resulting in a small contact area and insufficient stability. In particular, because fluids such as laundry detergent are prone to shaking in the bag, the bag body is prone to tipping over when subjected to external forces or placed on an uneven surface. Therefore, the support structure of the existing laundry detergent packaging bag needs to be improved to obtain sufficient stability when standing on its own. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide a laundry detergent packaging bag to solve the above problems.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0006] The utility model provides a laundry detergent packaging bag, which comprises a bag front film, a bag rear film and a bag bottom film, wherein the bag front film and the bag rear film are the same film sheets, and the bag front film, the bag rear film and the bag bottom film are sealed to each other by heat sealing to form a bag body with a storage space for storing laundry detergent therein, the edges of the bag front film, the bag rear film and the bag bottom film are adhered to each other to form a heat sealing line of the bag body, and a bag spout connected to the bag body storage space is provided on the bag body.

[0007] Among them, support film sheets are extended downward from the front and back sides of the bag bottom film respectively, and the bottom edge of the support film sheet is parallel to the bag bottom film. The left and right ends of the support film sheet extend a vertical side edge downward flush with the heat sealing line, and then a corner bevel edge is extended inward toward the bottom edge of the support film sheet, so that the corner bevel edge is connected to the bottom edge of the support film sheet. The support film sheet has an aluminum metal strip built in, and the length direction of the aluminum metal strip is parallel to the vertical side edge of the support film sheet and perpendicular to the bottom edge of the support film sheet.

[0008] Preferably, each of the supporting membranes has two built-in aluminum metal strips, which are respectively located at the junction of the bottom edge of the supporting membrane and the two corner oblique edges.

[0009] Preferably, the supporting film on the front side of the bag bottom film is an integral and continuous film structure with the front film of the bag body, and the supporting film on the back side of the bag bottom film is an integral and continuous film structure with the back film of the bag body. In the supporting film on the front side of the bag bottom film, the aluminum metal strip extends into the front film of the bag body, and in the supporting film on the back side of the bag bottom film, the aluminum metal strip extends into the back film of the bag body.

[0010] Preferably, the supporting film is a composite film composed of a PET film, an aluminum foil film and a PE film.

[0011] Preferably, a chamfer is cut out at one end of the top of the bag body, and the bag mouth is arranged at the chamfer.

[0012] Preferably, a hand-holding opening is provided at one end of the bag body opposite to the chamfer, and the hand-holding opening is located between the top of the bag body and the bottom film of the bag. A hand buckle is fixed at the hand-holding opening, and a finger-shaped groove is formed in the hand buckle.

[0013] Preferably, a hanging hole is provided on the heat-sealing line next to the bag mouth, and the hanging hole is waist-shaped.

[0014] The technical effects achieved by the technical solution of this utility model mainly include:

[0015] In the above laundry detergent packaging bag, the support structure is formed by a support film extending from the bag base film and an internal aluminum metal strip. The support film can be flipped to a direction parallel to the placement surface and attached to the placement surface, providing a relatively large contact area. The multi-sided corner structure formed by the vertical side edges, corner bevel edges, and bottom edge of the support film can abut against structures in various directions. When encountering an uneven placement surface, it provides multiple optional support positions, making the laundry detergent packaging bag less likely to fall over after being erected.

[0016] The built-in aluminum metal strip has good plasticity, which allows the supporting membrane and the bag bottom film to maintain a specific angle and not easily deform, thereby enhancing the strength of the corresponding position of the support structure. The aluminum metal strip increases the weight of the supporting structure of the laundry detergent packaging bag, making it more stable. The aluminum metal strips on the front and back sides of the bag bottom film cooperate with each other to form a structure similar to a supporting foot, which can effectively prevent the laundry detergent packaging bag from tipping over. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the laundry detergent packaging bag provided by the utility model;

[0018] Figure 2 To correspond Figure 1 A partial enlarged view of the circular dotted box area A;

[0019] Figure 3This is a planar unfolded view of the bag bottom film and the supporting film in the laundry detergent packaging bag.

[0020] The reference numerals in the above drawings are:

[0021] Bag front film 1, bag body 100, heat sealing line 101, hand-held port 102, hanging hole 103;

[0022] Bag back film 2;

[0023] Bag bottom film 3;

[0024] Bag mouth 4;

[0025] Supporting diaphragm 5, bottom edge 5a of supporting diaphragm, vertical side 5b, corner bevel 5c, aluminum metal strip 51;

[0026] Buckle ring 6, finger groove 61. DETAILED DESCRIPTION

[0027] To make the objectives, technical solutions, and advantages of the present invention more apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the accompanying drawings. The embodiments of the present invention shown in and described with reference to the accompanying drawings are merely exemplary, and the present invention is not limited to these embodiments.

[0028] In order to avoid obscuring the present invention due to unnecessary details, the drawings only show structures and / or processing steps closely related to the solutions according to the present invention, while other less relevant details are omitted.

[0029] Reference Figures 1 to 3 As shown, an embodiment of the present invention provides a laundry detergent packaging bag, which includes a front film 1 of the bag body, a rear film 2 of the bag body, and a bottom film 3 of the bag body. The front film 1 of the bag body and the rear film 2 of the bag body are the same film sheets. The front film 1 of the bag body, the rear film 2 of the bag body, and the bottom film 3 of the bag body are sealed to each other by heat sealing to form a bag body 100 with a storage space for storage of laundry detergent. The edges of the front film 1 of the bag body, the rear film 2 of the bag body, and the bottom film 3 of the bag body are adhered to each other to form a heat sealing line 101 of the bag body 100. The bag body 100 is provided with a bag mouth 4 connected to the storage space of the bag body.

[0030] Among them, the front and rear sides of the bag bottom film 3 respectively extend downward to form a support film 5, the bottom edge 5a of the support film 5 is parallel to the bag bottom film 3, and the left and right ends of the support film 5 are flush with the heat sealing line 101 and extend downward to form a vertical side edge 5b, and then extend inward toward the bottom edge 5a of the support film 5 to form a corner bevel 5c, so that the corner bevel 5c is connected to the bottom edge 5a of the support film 5, and the support film 5 has an aluminum metal strip 51 built in, and the length direction of the aluminum metal strip 51 is parallel to the vertical side edge 5b of the support film 5 and perpendicular to the bottom edge 5a of the support film 5.

[0031] The laundry detergent packaging bag provided by the embodiment of the present invention uses the supporting film sheet 5 extending from below the bag bottom film 3 as a supporting structure standing on the placement surface. First, when the supporting film sheet 5 contacts the placement surface, it can be flipped to a direction parallel to the placement surface and attached to the placement surface. The relative contact area between the supporting film sheet 5 and the placement surface is large and more stable. Furthermore, the multi-sided corner structure composed of the vertical side edges 5b, the corner oblique edges 5c and the bottom edge 5a of the supporting film 5 can adapt to the corresponding structures in multiple side directions and can abut against structures in multiple directions. When placed on an uneven surface, it is equivalent to providing multiple optional side support positions, making it more difficult for the laundry detergent packaging bag to fall over after it is erected; and because the aluminum metal strip 51 has good plasticity, it is built into the supporting membrane 5 so that the supporting membrane 5 can maintain the corresponding state after being folded and is not easy to deform, thereby enhancing the strength of the corresponding position of the supporting structure. The aluminum metal strip 51 increases the overall weight of the supporting structure and lowers the center of gravity of the laundry detergent packaging bag support structure. The aluminum metal strips 51 on the front and rear sides of the bag bottom film 3 cooperate with each other to form a structure similar to a supporting foot, which can effectively prevent the laundry detergent packaging bag from falling forward and backward.

[0032] Specifically, each support film 5 has two aluminum strips 51 built into it, located at the junction of the bottom edge 5a and the two corner bevels 5c of the support film 5. The aluminum strips 51 are located at the left and right ends of the support film 5, helping to prevent the laundry detergent packaging bag from tipping over. The specific dimensions of the aluminum strips 51 are determined by the size of the laundry detergent packaging bag and production requirements.

[0033] Furthermore, the supporting film piece 5 on the front side of the bag bottom film 3 is an integral and continuous film structure with the bag body front film 1, and the supporting film piece 5 on the back side of the bag bottom film 3 is an integral and continuous film structure with the bag body back film 2. In the supporting film piece 5 on the front side of the bag bottom film 3, the aluminum metal strip 51 extends into the bag body front film 1, and in the supporting film piece 5 on the back side of the bag bottom film 3, the aluminum metal strip 51 extends into the bag body back film 2, thereby enabling the bag body front film 1 and the bag body back film 2 to provide connection force points for the corresponding aluminum metal strip 51, so that the corresponding supporting film piece 5 forms a stable state with a fixed angle with the bag body front film 1 or the bag body back film 2.

[0034] In this embodiment, the front side of the bag bottom film 3 is heat-sealed and fixed to the bottom of the bag front film 1, the rear side of the bag bottom film 3 is heat-sealed and fixed to the bottom of the bag back film 2, and the remaining edge areas of the bag front film 1 and the bag back film 2 corresponding to the heat sealing line 101 are heat-sealed and fixed to each other.

[0035] In this embodiment, the supporting film 5 is a composite film composed of PET film, aluminum foil film and PE film, which is a common film layer of packaging bags used to contain liquids and has sufficient waterproof ability, toughness and puncture resistance.

[0036] Specifically, a chamfer is cut out at one end of the top of the bag body 100 , and the bag mouth 4 is arranged at the chamfer.

[0037] According to the position of the bag spout 4 for pouring liquid, the structure of the laundry detergent packaging bag is designed to be easy to hold in hand, and the bag spout 4 is naturally facing downward when holding the laundry detergent, conforming to the conventional liquid pouring gesture. A hand-holding opening 102 is also opened on the end of the bag body 100 opposite to the chamfer. In order to concentrate the structural center of gravity on the bag body 100 and maintain the weight balance of the bag body 100, the hand-holding opening 102 is located between the top of the bag body 100 and the bag bottom film 3. A buckle ring 6 is fixed to the hand-holding opening 102, and a finger-shaped groove 61 is formed in the buckle ring 6 to increase the contact area of the fingers and avoid injury to the hands.

[0038] A hanging hole 103 is further provided on the heat sealing line 101 beside the bag mouth 4. The hanging hole 103 is waist-shaped to facilitate hanging the laundry detergent packaging bag on a sales shelf or other area.

[0039] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0040] The above is only a specific implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A laundry detergent packaging bag, characterized in that: The invention comprises a bag body front film (1), a bag body back film (2) and a bag bottom film (3), wherein the bag body front film (1) and the bag body back film (2) are the same film sheets, and the bag body front film (1), the bag body back film (2) and the bag bottom film (3) are sealed to each other by heat sealing to form a bag body (100) having a storage space for storage of laundry liquid. The edges of the bag body front film (1), the bag body back film (2) and the bag bottom film (3) are adhered to each other to form a heat sealing line (101) of the bag body (100), and the bag body (100) is provided with a bag mouth (4) connected to the bag body storage space. The front and rear sides of the bag bottom film (3) respectively extend downwardly to form a supporting film sheet (5), the bottom edge (5a) of the supporting film sheet (5) is parallel to the bag bottom film (3), and the left and right ends of the supporting film sheet (5) extend downwardly to form a vertical side edge (5b) flush with the heat sealing line (101), and then extend an oblique corner edge (5c) inwardly toward the bottom edge (5a) of the supporting film sheet (5), so that the oblique corner edge (5c) is connected to the bottom edge (5a) of the supporting film sheet (5), and the supporting film sheet (5) is internally provided with an aluminum metal strip (51), and the length direction of the aluminum metal strip (51) is parallel to the vertical side edge (5b) of the supporting film sheet (5) and perpendicular to the bottom edge (5a) of the supporting film sheet (5).

2. The laundry detergent packaging bag according to claim 1, characterized in that: Each of the supporting membranes (5) has two aluminum metal strips (51) built in, which are respectively located at the junction of the bottom edge (5a) and the two corner oblique edges (5c) of the supporting membrane (5).

3. The laundry detergent packaging bag according to claim 1, characterized in that: The supporting film sheet (5) on the front side of the bag bottom film (3) and the bag body front film (1) are an integrated continuous film sheet structure, and the supporting film sheet (5) on the back side of the bag bottom film (3) and the bag body back film (2) are an integrated continuous film sheet structure. In the supporting film sheet (5) on the front side of the bag bottom film (3), the aluminum metal strip (51) extends into the bag body front film (1), and in the supporting film sheet (5) on the back side of the bag bottom film (3), the aluminum metal strip (51) extends into the bag body back film (2).

4. The laundry detergent packaging bag according to claim 1, characterized in that: The supporting film (5) is a composite film composed of a PET film, an aluminum foil film and a PE film.

5. The laundry detergent packaging bag according to claim 1, characterized in that: A chamfer is cut at one end of the top of the bag body (100), and the bag mouth (4) is arranged at the chamfer.

6. The laundry detergent packaging bag according to claim 5, characterized in that: A hand-holding opening (102) is also provided on the bag body (100) at one end opposite to the chamfered corner. The hand-holding opening (102) is located between the top of the bag body (100) and the bag bottom film (3). A hand-holding ring (6) is fixed to the hand-holding ring (102), and a finger-shaped groove (61) is formed in the hand-holding ring (6).

7. The laundry detergent packaging bag according to claim 5, characterized in that: A hanging hole (103) is also provided on the heat sealing line (101) beside the bag mouth (4), and the hanging hole (103) is in the shape of a waist hole.

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