Packaging bag and washing product with packaging bag

Abstract

The utility model provides a packaging bag and a washing product with the packaging bag, the packaging bag comprises a first sheet material and a second sheet material, at least one part of the edge of the first sheet material and at least one part of the edge of the second sheet material are combined together to form a containing space of the packaging bag, and the packaging bag is characterized in that at least one part of the edge of the first sheet material and at least one part of the edge of the second sheet material are combined together. The ratio of the width to the height of the first sheet and the ratio of the width to the height of the second sheet are both in the range of 1-1.5. The utility model further provides a washing product with a package, the washing product comprises the packaging bag, and granular solids are contained in the packaging bag.

Description

Technical Field

[0001] Embodiments of the present disclosure generally relate to the field of packaging technology, and more particularly, to a packaging bag and a washing product with the packaging bag. Background Art

[0002] Typically, granular detergents such as washing powder are filled in packaging bags made of waterproof or water-resistant flexible films for sale. The overall shape of the most common packaging bag for granular detergents is a rectangular pillow, and the packaging bag is formed by merging two rectangular sheets and sealing the edges. When these detergent products are sold in physical stores, due to the flat shape of the packaging bag, such products are usually stacked up and down for storage or shelf display. The detergent particles in the packaging bag placed below will be compacted and no longer fluffy, which makes it inconvenient for the detergent particles to be poured out of the packaging bag, reducing the consumer's comfort; in addition, the stacked shelf display method is not easy for consumers to quickly identify visually, which is inconvenient for consumers to pick up and is not conducive to sales. When consumers use granular detergent products, the flat shape of the packaging bag is not convenient for daily placement. Sometimes consumers will stand the packaging bag upright and place it against a vertical wall such as a wall. For large-capacity packaging, the detergent particles in the upper part of the packaging bag will compact the detergent particles in the lower part due to gravity. The compacted detergent particles in the lower part are no longer fluffy and are not convenient to pour out of the packaging bag, which reduces the consumer's comfort. In addition, large-capacity packaging bags cannot remain upright stably and sometimes fall over accidentally. When the packaging bag is opened, the granular detergent contained in it will vibrate and generate undesirable dust.

[0003] On the other hand, when the consumer is ready to use granular detergent, he / she will tear or cut an opening at the top corner of the packaging bag usually, and the granular detergent product can be poured out through this opening. After each use, this type of opening will need to be, for example, closed with a clip or rubber band to prevent the granular detergent from leaking out from the packaging bag, and to prevent moisture / water from entering the packaging bag and causing the granular detergent to clump or aggregate inside. However, the size and shape of this type of opening formed by tearing or cutting may vary greatly, and it is difficult to control the amount and speed of the granular detergent dispensed from this type of opening. In addition, closing this type of opening with a clip or rubber band still may cause accidental leakage, and they may not form an effective moisture-proof / waterproof barrier, causing the detergent to become damp and harden, and being difficult to pour out of the packaging bag, so for a long time, also the washing effect of the detergent can be deteriorated.

[0004] In real life, consumers prefer to buy granular detergent products with large-capacity packaging bags. Each time they use the product, due to the large weight of the large-capacity packaging bag, consumers cannot stably hold the packaging bag while pouring the granular detergent through the mouth, and it is also difficult to control the amount and speed of the granular detergent dispensed from the mouth.

[0005] Therefore, there is a need for a packaging bag with an improved shape so that it can be easily erected after accommodating granular solids, and the granular solids inside can still remain loose after being erected for a long time, which is convenient for pouring, thereby improving the consumer's comfort. At the same time, the packaging bag needs to be provided with a mouth for dispensing granular solids and a component for auxiliary pouring to facilitate consumers to use detergents. Utility Model Content

[0006] The purpose of the present disclosure is to solve at least one aspect of the above-mentioned problems and defects in the prior art.

[0007] According to one aspect of the present disclosure, there is provided a packaging bag, comprising a first sheet and a second sheet, wherein at least a portion of the edges of the first sheet and the second sheet are combined together to form a containing space of the packaging bag, and characterized in that the ratio of the width to the height of the first sheet and the ratio of the width to the height of the second sheet are both in the range of 1-1.5.

[0008] According to an exemplary embodiment of the present disclosure, a ratio of the width to the height of the first sheet and a ratio of the width to the height of the second sheet are both within a range of 1.2-1.5.

[0009] According to an exemplary embodiment of the present disclosure, at least a portion of the edges of the first sheet and the second sheet are combined together to form a sealed edge with a width of 8 mm to 12 mm.

[0010] According to an exemplary embodiment of the present disclosure, the packaging bag also includes an inserted bottom, the bottom edges of the edges of the first sheet and the bottom edges of the edges of the second sheet are respectively combined with the periphery of the inserted bottom, and the remaining portions of the edges of the first sheet are combined with the remaining portions of the edges of the second sheet to form a accommodating space of the packaging bag, wherein the inserted bottom can be folded in half and sandwiched between the first sheet and the second sheet so that the entire packaging bag forms a flat shape.

[0011] According to an exemplary embodiment of the present disclosure, the bottom edge of the edge of the first sheet and the bottom edge of the edge of the second sheet are respectively combined with the periphery of the insert to form a sealed edge with a width of 8 mm to 12 mm.

[0012] According to an exemplary embodiment of the present disclosure, the first sheet material, the second sheet material and the insert base each include a plurality of composite material layers.

[0013] According to an exemplary embodiment of the present disclosure, the first sheet material, the second sheet material and the insert base each include two composite material layers.

[0014] According to an exemplary embodiment of the present disclosure, the outermost material layer among the plurality of composite material layers is a unidirectionally stretched composite material layer, and the density of the innermost material layer is lower than the density of the material layers of other layers.

[0015] According to an exemplary embodiment of the present disclosure, the middle material layer among the plurality of composite material layers is a biaxially stretched composite material layer.

[0016] According to an exemplary embodiment of the present disclosure, the first sheet and the second sheet of the packaging bag have a width of 350 mm to 420 mm and a height of 240 mm to 300 mm, and the height of the inserted bottom after being folded in half is 30 mm to 70 mm.

[0017] According to an exemplary embodiment of the present disclosure, a corner of the top of the packaging bag is provided with a first oblique edge inclined toward the top center line of the packaging bag, and the packaging bag also includes a handle, which is arranged at the first oblique edge and the gripping portion of the handle is inclined toward the top center line of the packaging bag.

[0018] According to an exemplary embodiment of the present disclosure, the handle is rigid and has an ear shape.

[0019] According to an exemplary embodiment of the present disclosure, another corner of the top of the packaging bag is provided with a second hypotenuse inclined toward the top center line of the packaging bag, and the packaging bag also includes a mouth, which is arranged at the second hypotenuse, and the axis of the mouth is inclined relative to the top of the packaging bag and the opening of the mouth is facing away from the bottom of the packaging bag.

[0020] According to an exemplary embodiment of the present disclosure, the mouth is rigid and cylindrical in shape, wherein the diameter of the cylinder is 21 mm to 28 mm.

[0021] According to another aspect of the present disclosure, there is provided a packaged washing product, comprising the packaging bag according to any one of claims 1 to 14, characterized in that granular solids are contained in the packaging bag.

[0022] According to an exemplary embodiment of the present disclosure, the height of the remaining space after the packaging bag is filled with the granular solid is 9 cm to 11 cm.

[0023] According to an exemplary embodiment of the present disclosure, the median weight particle size of the granular solid is between 200 μm and 1000 μm; the bulk density is 0.3 g / cm 3 Up to 0.9g / cm 3 between.

[0024] According to an exemplary embodiment of the present disclosure, the median weight particle size of the granular solid is between 250 μm and 950 μm; the bulk density is 0.35 g / cm 3 Up to 0.8g / cm 3 between.

[0025] According to an exemplary embodiment of the present disclosure, the median weight particle size of the granular solid is between 300 μm and 850 μm.

[0026] The packaging bag provided according to the aforementioned various exemplary embodiments of the present disclosure has the advantage that the packaging bag can be conveniently stood upright after accommodating granular solids, and the granular solids inside the packaging bag remain loose after being stood upright for a long time, making it convenient to pour. At the same time, the packaging bag is provided with a mouth for distributing the granular solids and a component for assisting pouring so that the granular solids contained in the packaging bag can be discharged and distributed in a controlled and smooth manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Other objects and advantages of the present disclosure will be apparent from the following description of the present disclosure with reference to the accompanying drawings and will help to have a comprehensive understanding of the present disclosure.

[0028] Figure 1 A schematic diagram of the back structure of a packaging bag according to an exemplary embodiment of the present disclosure is shown, wherein the bottom insert is folded.

[0029] Figure 2 is a schematic diagram of the front structure of a packaging bag according to an exemplary embodiment of the present disclosure, wherein the insert bottom is folded; and

[0030] Figure 3 is a schematic diagram of the bottom structure of a packaging bag according to an exemplary embodiment of the present disclosure, wherein the inserted bottom is unfolded. DETAILED DESCRIPTION

[0031] The technical solution of the present disclosure is further specifically described below through examples and in conjunction with the accompanying drawings. In the specification, the same or similar figure numbers indicate the same or similar parts. The following description of the embodiments of the present disclosure with reference to the accompanying drawings is intended to explain the overall concept of the present disclosure and should not be construed as a limitation of the present disclosure.

[0032] In addition, in the detailed description below, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the disclosed embodiments. However, it is apparent that one or more embodiments may be implemented without these specific details. In other cases, known structures and devices are embodied in a schematic manner to simplify the accompanying drawings.

[0033] According to an overall technical concept of the present disclosure, a packaging bag is provided, comprising a first sheet and a second sheet, wherein at least a portion of the edges of the first sheet and the second sheet are combined together to form a containing space of the packaging bag, characterized in that the ratio of the width D to the height H of the first sheet and the ratio of the width D to the height H of the second sheet are both within a range of 1-1.5. The present disclosure also provides a washing product with packaging, comprising the above packaging bag, wherein the packaging bag contains granular solids.

[0034] As used herein, the term "granular detergent" refers to solid powdered or granular detergents, preferably free-flowing powdered or granular detergents, such as all-purpose detergents or heavy-duty detergents for fabrics, and detergent adjuvants, such as bleach actives, rinse aids, additives or pre-treatment products.

[0035] The packaging bag provided by the present disclosure can be used to package a variety of solid granular washing products. The packaging bag of the present disclosure can hold the following products: cleaning products, disinfectants, dishwashing combinations, laundry detergents, fabric conditioners, fabric dyes, surface protectants, hair care products, food, medicines, supplements, automotive products, aviation products, etc.

[0036] Figure 1 A schematic diagram of the back structure of a packaging bag according to an exemplary embodiment of the present disclosure is shown, wherein the bottom insert is folded. Figure 2 is a schematic diagram of the front structure of a packaging bag according to an exemplary embodiment of the present disclosure, wherein the insert bottom is folded in half; and Figure 3 is a schematic diagram of the bottom structure of a packaging bag according to an exemplary embodiment of the present disclosure, wherein the inserted bottom is unfolded.

[0037] As shown in the figure, a packaging bag 10 provided according to the present disclosure mainly includes a first sheet 10a and a second sheet 10b, wherein the upper edges of the first sheet 10a and the second sheet 10b are combined together to form a receiving space at the upper part of the packaging bag 10, wherein the combined portion of the edges of the first sheet 10a and the second sheet 10b forms an edge seal with a width d of 12 mm. The ratio of the width D to the height H of the first sheet 10a and the ratio of the width D to the height H of the second sheet 10b are both within the range of 1-1.5. Preferably, the ratio of the width D to the height H of the first sheet 10a and the ratio of the width D to the height H of the second sheet 10b are both within the range of 1.2-1.5. The above ratio range ensures that when the packaging bag 10 is in an upright position, the granular solids contained inside are roughly spread out on the plane on which the packaging bag 10 is placed, and the gravity of the granular solids is evenly dispersed without compacting the loosely stacked particles in the packaging bag 10.

[0038] As shown in the figure, the packaging bag 10 provided according to the exemplary embodiment of the present disclosure further includes an inserted bottom 10c, the bottom edge 11 of the edge of the first sheet 10a and the bottom edge 11 of the edge of the second sheet 10b are respectively combined with the periphery of the inserted bottom 10c, and the remaining portion of the edge of the first sheet 10a and the remaining portion of the edge of the second sheet 10b are combined together to form the entire accommodating space of the packaging bag 10, wherein the bottom edge 11 of the edge of the first sheet 10a and the bottom edge 11 of the edge of the second sheet 10b are respectively combined with the periphery of the inserted bottom 10c to form a sealed edge with a width d of 12 mm. The inserted bottom 10c can be folded in half and sandwiched between the first sheet 10a and the second sheet 10b, so that the entire packaging bag 10 forms a flat shape.

[0039] When the insert bottom 10c is folded in half, the entire packaging bag 10 is emptied of the granular solids and forms a flat shape. When the insert bottom 10c is unfolded, a flat bottom is formed, and the packaging bag 10 containing the granular solids can be stably erected.

[0040] Specifically, the first sheet 10a and the second sheet 10b are combined together at least at the first side 13 and the second side 14, and the first sheet 10a, the second sheet 10b and the insert bottom 10c are combined together at the bottom 11, and the first sheet 10a, the second sheet 10b and the insert bottom 10c enclose a receiving space, wherein the insert bottom 10c can be folded in half and sandwiched between the first sheet 10a and the second sheet 10b. According to an exemplary embodiment of the present disclosure, the packaging bag 10 is composed of the first sheet 10a, the second sheet 10b and the insert bottom 10c. In some other embodiments not shown in the figure, the packaging bag 10 can also be composed of only the first sheet 10a and the second sheet 10b, that is, the insert bottom 10c is not included.

[0041] It should be noted that the width d of the edge seal of the packaging bag 10 provided according to the exemplary embodiment of the present disclosure is not limited to 12 mm, and the width of the edge seal d may be between 8 mm and 12 mm.

[0042] According to the packaging bag disclosed in the present invention, the first sheet material, the second sheet material and the insert bottom all include multiple composite material layers. Specifically, the first sheet material, the second sheet material and the insert bottom all include two composite material layers. The outermost material layer among the multiple composite material layers is a uniaxially stretched composite material layer, and the density of the innermost material layer is less than the density of the material layers of other layers. Among them, the middle material layer among the multiple composite material layers is a biaxially stretched composite material layer.

[0043] According to the present disclosure, the first sheet and / or the second sheet and / or the insert bottom of the packaging bag 10 can be formed by at least one flexible film material layer. According to the present disclosure, the first sheet and / or the second sheet and / or the insert bottom can be formed by at least one flexible film material, and the flexibility coefficient (elastic modulus) of the flexible film material is 100Mpa (N / mm 2 ) to 1500Mpa(N / mm 2 ), preferably within the range of 400Mpa (N / mm 2 ) to 1100Mpa(N / mm 2 ), the thickness of the flexible film material is in the range of 20 micron to 250 micron, preferably in the range of 100 micron to 160 micron.

[0044] According to the present disclosure, the first sheet material and / or the second sheet material and / or the insert bottom of the packaging bag can be made of multiple or two composite film layers. The inner layer is in contact with the granular detergent contained in the packaging bag, and the outer layer forms the outermost surface of the packaging bag. For example, in an embodiment using multiple composite film layers, the outer layer is preferably polyester, the inner layer is preferably polyethylene, and the middle layer is preferably nylon. In another embodiment using multiple composite film layers, the outer layer is preferably uniaxially stretched polyethylene, the inner layer is preferably low-density polyethylene, and the middle layer is preferably biaxially stretched polyethylene material. In an embodiment using a double-layer composite film layer, the outer layer is preferably polyester, and the inner layer is preferably polyethylene. In an embodiment using a double-layer composite film layer, the outer layer is preferably nylon, and the inner layer is preferably polyethylene. Of course, in other embodiments, the first sheet material and / or the second sheet material and / or the insert bottom of the packaging bag can also be made of any suitable flexible film layer and / or composite film layer according to actual needs, and the present disclosure is not limited here.

[0045] In addition, a portion, multiple portions, or all of the first sheet and / or second sheet and / or insert of the packaging bag may be coated or uncoated, treated or untreated, processed or unprocessed in any manner known in the art. The flexible film and / or composite film material used to make the packaging bag disclosed herein may be formed in any manner known in the art and may be joined together using any type of joining or sealing method known in the art, including, for example, heat sealing (e.g., conductive sealing, impulse sealing, ultrasonic sealing, etc.), welding, crimping, bonding, adhering, etc., and any combination of these.

[0046] In an exemplary embodiment according to the present disclosure, the width D of the first sheet 10a and the second sheet 10b of the packaging bag 10 is 350 mm to 420 mm, the height H is 240 mm to 300 mm, and the height h of the bottom 10c after being folded in half is 30 mm to 70 mm.

[0047] Specifically, according to an exemplary embodiment of the present disclosure, the width D of the first sheet 10a and the second sheet 10b is 350 mm, and the height H is 260 mm. The height h of the insert bottom 10c after being folded in half is 55 mm.

[0048] Specifically, according to another exemplary embodiment of the present disclosure, the width D of the first sheet 10a and the second sheet 10b is 380 mm, the height H is 280 mm, and the height h of the insert bottom 10c after being folded in half is 55 mm.

[0049] Specifically, according to yet another exemplary embodiment of the present disclosure, the width D of the first sheet 10a and the second sheet 10b is 420 mm, and the height H is 320 mm. The height h of the insert bottom 10c after being folded in half is 65 mm.

[0050] As shown in the figure, a corner of the top of the packaging bag 10 is provided with a first oblique edge 15 inclined toward the top center line of the packaging bag 10, and the packaging bag 10 further includes a handle, which is provided at the first oblique edge 15 and the gripping portion of the handle is inclined toward the top center line of the packaging bag 10. The handle is rigid and has a substantially ear-shaped shape.

[0051] Specifically, according to the embodiment of the present disclosure, the handle 30 may include: a peripheral portion 31 and a through portion 32 defined by the peripheral portion 31, wherein the through portion 32 passes through the packaging bag 10. The peripheral portion 31 is formed with at least two finger receiving grooves 33 toward the inner periphery of the through portion 32. The handle 30 may be attached between the first sheet 10a and the second sheet 10b of the packaging bag 10 in a heat-sealed manner via the outer periphery of the peripheral portion 31. In some alternative embodiments, the handle may also be a through hole formed by cutting / piercing one or more sealed portions of the packaging bag 10 (i.e., a completely open space through which fingers and / or thumbs may be inserted).

[0052] In an exemplary embodiment according to the present disclosure, the other corner of the top of the packaging bag 10 is provided with a second oblique side 16 inclined toward the top center line of the packaging bag 10, and the packaging bag 10 further includes a mouth 20, which is arranged at the second oblique side 16, the axis of the mouth 20 is inclined relative to the top of the packaging bag 10 and the opening of the mouth 20 faces away from the bottom direction of the packaging bag 10. The mouth 20 is rigid and has an overall cylindrical shape. The mouth 20 is configured to dispense the contents (granular laundry detergent in the exemplary embodiment) contained in the packaging bag 10 through the mouth 20.

[0053] Specifically, in Figures 1 to 3 In the exemplary embodiment shown, the top edge 12 of the packaging bag 10 is connected to the first side edge 13 via the first oblique edge 15, and the handle 30 is formed near the first oblique edge 15. At the same time, the top edge 12 of the packaging bag 10 is connected to the second side edge 14 via the second oblique edge 16, and the mouth 20 is attached to the second oblique edge 16. Preferably, the mouth axis A1 of the mouth 20 can be perpendicular to the second oblique edge 16.

[0054] The rigid mouth 20 is generally cylindrical, communicates with the internal accommodating space of the packaging bag 10, and is configured to distribute granular detergent from the internal accommodating space of the packaging bag 10. The cylindrical diameter is in the range of 20mm to 50mm, preferably, the cylindrical opening diameter is in the range of 20mm to 30mm, more preferably in the range of 21mm to 28mm, and most preferably in the range of 22mm to 26mm. It has been found through testing that the rigid mouth with an opening diameter in the above range is particularly suitable for distributing granular detergent. If the mouth opening diameter is lower than 20mm, such as 15mm, the volume flow rate for distributing granular detergent is too slow and may cause insufficient feeding. If the mouth opening diameter is greater than 30mm, such as 33mm, the volume flow rate for distributing granular detergent is too fast and may cause excessive feeding. The length L of the mouth is in the range of 20mm to 50mm, preferably in the range of 30mm to 40mm, and more preferably in the range of 32mm to 38mm.

[0055] According to the present disclosure, the rigid mouth 20 may also include a cap (not shown). The cap removably covers the mouth 20. For example, the cap is removably engaged to the rigid mouth 20 via internal threads that engage with corresponding external threads on the periphery of the mouth 20 to close the mouth and prevent accidental leakage of the granular detergent.

[0056] Compared with the first sheet 10a and / or the second sheet 10b and / or the insert bottom 10c of the packaging bag 10, the mouth 20 as described above has a relatively rigid structure and can be made of any suitable rigid material, such as glass, metal, polymer, etc., but is preferably made of polymer. Specifically, the mouth and / or the lid can be made of the same or different materials. Preferably, each of them is independently made of a group selected from polypropylene (PP), polyethylene (PE), polycarbonate (PC), polyamide (PA), polyethylene terephthalate (PET), polyvinyl chloride (PVC), polystyrene (PS) and combinations thereof.

[0057] According to another aspect of the present disclosure, there is also provided a packaged washing product, comprising the packaging bag described in any one of the above embodiments, wherein the packaging bag contains granular solids.

[0058] The height H1 of the remaining space after the packaging bag is filled with the granular solid is 9 cm to 11 cm.

[0059] According to the present disclosure, the particles of the granular detergent contained in the packaging bag may be characterized by a median weight particle size (Dw50) between 200 μm and 1000 μm, preferably between 250 μm and 950 μm, and more preferably between 300 μm and 850 μm. The particles of the granular detergent may also be characterized by a bulk density between 0.3 g / cm3 and 0.9 g / cm3, preferably between 0.35 g / cm3 and 0.8 g / cm3. The water content of the granular detergent may be 2.7-3.0%.

[0060] Experiments show that when the ratio of the width D to the height H of the first sheet material and the ratio of the width D to the height H of the second sheet material of the packaging bag are both within the range of 1.2-1.5, the packaging bag has a higher fluffiness, strong fluidity, and is easy to pour out when containing the above-mentioned granular detergent; in comparison, when the ratio of the width D to the height H of the first sheet material and the ratio of the width D to the height H of the second sheet material of the packaging bag are not within this range, under the condition that the packaging bag contains the same capacity of granular detergent, the granular detergent therein has a higher stacking density and serious agglomeration.

[0061] The packaging bag provided according to the aforementioned various exemplary embodiments of the present disclosure has the advantage that the packaging bag can be conveniently stood upright after accommodating granular solids, and the granular solids inside the packaging bag remain loose after being stood upright for a long time, making it convenient to pour. At the same time, the packaging bag is provided with a mouth for distributing the granular solids and a component for assisting pouring so that the granular solids contained in the packaging bag can be discharged and distributed in a controlled and smooth manner.

[0062] Those skilled in the art can understand that the embodiments described above are exemplary and can be improved by those skilled in the art. The structures described in various embodiments can be freely combined without causing conflicts in structure or principle.

[0063] Although the present disclosure is described in conjunction with the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to exemplify the preferred implementation modes of the present disclosure and should not be construed as limiting the present disclosure.

[0064] Although some embodiments of the concepts of the present disclosure have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the concepts of the overall disclosure, the scope of which is defined by the claims and their equivalents.

[0065] It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. In addition, any element reference signs in the claims shall not be construed as limiting the scope of the present disclosure.

[0066] The dimensions and values ​​described herein should not be understood as being strictly limited to the exact numerical values ​​cited. Instead, unless otherwise specified, each dimension is intended to represent the recited value and a functionally equivalent range around that value. For example, a dimension disclosed as "8 mm" is intended to mean "about 8 mm".

Claims

1. A packaging bag, comprising a first sheet and a second sheet, wherein: At least a portion of the edges of the first sheet and the second sheet are combined together to form a receiving space for the packaging bag, wherein the ratio of the width to the height of the first sheet and the ratio of the width to the height of the second sheet are both in the range of 1-1.

5.

2. The packaging bag according to claim 1, characterized in that: The ratio of the width to the height of the first sheet and the ratio of the width to the height of the second sheet are both in the range of 1.2-1.

5.

3. The packaging bag according to claim 1, characterized in that: At least a portion of the edges of the first sheet and the second sheet are bonded together to form a sealed edge with a width of 8 mm to 12 mm.

4. The packaging bag according to claim 3, characterized in that: The packaging bag further comprises an inserted bottom, wherein the bottom edges of the edge of the first sheet and the bottom edges of the edge of the second sheet are respectively combined with the periphery of the inserted bottom, and the remaining portion of the edge of the first sheet and the remaining portion of the edge of the second sheet are combined with each other to form a receiving space of the packaging bag, wherein the inserted bottom can be folded in half and sandwiched between the first sheet and the second sheet so that the entire packaging bag forms a flat shape.

5. The packaging bag according to claim 4, characterized in that: The bottom edge of the edge of the first sheet and the bottom edge of the edge of the second sheet are respectively combined with the periphery of the insert bottom to form a sealed edge with a width of 8 mm to 12 mm.

6. The packaging bag according to any one of claims 4 to 5, characterized in that: The first sheet material, the second sheet material and the insert base each include a plurality of composite material layers.

7. The packaging bag according to any one of claims 4 to 5, characterized in that: The first sheet material, the second sheet material and the insert base each include two composite material layers.

8. The packaging bag according to claim 6, characterized in that: The outermost material layer among the multiple composite material layers is a uniaxially stretched composite material layer, and the density of the innermost material layer is lower than the density of the material layers of other layers.

9. The packaging bag according to claim 8, characterized in that: The middle material layer among the multiple composite material layers is a biaxially stretched composite material layer.

10. The packaging bag according to any one of claims 4 to 5, characterized in that: The first sheet and the second sheet of the packaging bag have a width of 350 mm to 420 mm and a height of 240 mm to 300 mm, and the height of the bottom after being folded in half is 30 mm to 70 mm.

11. The packaging bag according to claim 10, characterized in that: A corner of the top of the packaging bag is provided with a first oblique side inclined toward the top center line of the packaging bag. The packaging bag also includes a handle, which is arranged at the first oblique side and the gripping portion of the handle is inclined toward the top center line of the packaging bag.

12. The packaging bag according to claim 11, characterized in that: The handle is rigid and ear-shaped.

13. The packaging bag according to claim 11, characterized in that: Another corner of the top of the packaging bag is provided with a second beveled edge inclined toward the top center line of the packaging bag. The packaging bag also includes a mouth, which is arranged at the second beveled edge, the axis of the mouth is inclined relative to the top of the packaging bag, and the opening of the mouth is facing away from the bottom of the packaging bag.

14. The packaging bag according to claim 13, characterized in that: The mouth is rigid and cylindrical in shape, wherein the diameter of the cylinder is 21 mm to 28 mm.

15. A washing product with a packaging bag, comprising the packaging bag according to any one of claims 1 to 14, characterized in that: The packaging bag contains granular solids.

16. The cleaning product according to claim 15, characterized in that The height of the remaining space in the packaging bag after being filled with the granular solid is 9 cm to 11 cm.

17. The cleaning product according to claim 15 or 16, characterized in that The median weight particle size of the granular solid is between 200 μm and 1000 μm; the bulk density is 0.3 g / cm 3 Up to 0.9g / cm 3 between.

18. The cleaning product according to claim 17, characterized in that The median weight particle size of the granular solid is between 250 μm and 950 μm; the bulk density is 0.35 g / cm 3 Up to 0.8g / cm 3 between.

19. The cleaning product according to claim 18, characterized in that The granular solid has a median weight particle size between 300 μm and 850 μm.

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