Waterproof nonwoven fabric bag
By incorporating inner and outer waterproof layers and a Velcro closure structure into the non-woven bag, the problem of insufficient waterproofing in non-woven bags is solved, achieving an effective waterproofing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG WANSHU ENVIRONMENTAL SCI-TECH CO LTD
- Filing Date
- 2025-09-09
- Publication Date
- 2026-07-07
AI Technical Summary
Existing non-woven bags lack waterproofing, allowing water to seep into the bag and moisten the contents.
The bag body, flap, and side strips are fully covered by an inner and outer waterproof layer. The Velcro closure ensures waterproofing, and the design incorporates absorbent sponge and bottom frame to handle accidental water ingress.
This design achieves excellent waterproofing for the non-woven bag, preventing water from entering between the flap and the short sidewalls of the bag, thus keeping the interior dry.
Smart Images

Figure CN224466484U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a non-woven bag, and more specifically to a waterproof non-woven bag. Background Technology
[0002] Non-woven bags are a green product, tough and durable, aesthetically pleasing, breathable, reusable, washable, and can be screen-printed with advertisements and labels. They have a long service life. Made from non-woven fabric, a new generation of environmentally friendly material, non-woven bags are moisture-proof, breathable, flexible, lightweight, non-flammable, easily degradable, non-toxic and non-irritating, available in a variety of colors, inexpensive, and recyclable. Currently, some non-woven bags on the market are not waterproof, allowing water to seep into the bag and wet the contents. Therefore, a waterproof non-woven bag is needed to meet people's needs. Summary of the Invention
[0003] In view of the shortcomings of the existing technology, the present invention provides a waterproof non-woven bag with good waterproof effect.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a waterproof non-woven bag, comprising a bag body, wherein the bag body has a flap and side strips; the bag body includes a bag body, an inner waterproof layer, and an outer waterproof layer; the flap includes a cover, an inner waterproof layer, and an outer waterproof layer; the side strips include a middle layer, an inner waterproof layer, and an outer waterproof layer; the inner and outer waterproof layers fully cover the bag body, the cover, and the side strips; when the flap closes the bag body, the side strips are located on the outside of the flap.
[0005] The present invention is further configured such that: a bottom frame is fixedly disposed inside the bag; a partition is disposed above the bottom frame; the partition is connected to the bag body by a first Velcro fastener; the first Velcro fastener is disposed on the four edges of the partition and the four inner sidewalls of the bag body respectively.
[0006] The present invention is further configured such that: a through hole is provided on the partition plate; and an absorbent sponge is provided on the bottom inner side of the bottom frame.
[0007] The present invention is further configured such that: a connecting strip is provided on the side wall of the bag body; the connecting strip has a first connecting hole; a square strip is provided in the first connecting hole; the square strip is connected to the second connecting hole on the handle.
[0008] The present invention is further configured such that: a notch is provided on the square bar; a limiting block is provided at the notch; threaded holes are provided on both the limiting block and the square bar; a screw is provided at the threaded hole; and a handle is provided on the screw.
[0009] The present invention is further configured such that: a second Velcro closure is provided on the flap and the bag body; the second Velcro closure is located on the flap and the bag body respectively.
[0010] The present invention is further configured such that: a third Velcro is provided on the side strip and the flip cover; the third Velcro is located on the side strip and the flip cover respectively; one side of the second Velcro and one side of the third Velcro are located on the two sides of the flip cover respectively.
[0011] In summary, this utility model has the following beneficial effects: both sides of the bag body, both sides of the flap, and both sides of the side strip are provided with an inner waterproof layer and an outer waterproof layer; the inner and outer waterproof layers fully cover the bag body, the flap, and the side strip, thus making the bag body waterproof. When the flap covers the bag body, the other side of the third Velcro on the side strip is bonded to one side of the third Velcro on the flap, thereby sealing the side of the flap through the side strip, which can prevent water from entering the bag body from between the flap and the short side wall of the bag body, thus making the waterproof performance good. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this embodiment;
[0013] Figure 2 yes Figure 1 Enlarged view of part A;
[0014] Figure 3 This is a schematic diagram of the second Velcro strap in this embodiment;
[0015] Figure 4 This is a schematic diagram of the bottom frame, absorbent sponge, through hole, and first Velcro in this embodiment;
[0016] Figure 5 This is a schematic diagram of the bag body, flap, and side strip structure in this embodiment;
[0017] Figure 6 This is a schematic diagram of the notch and threaded hole in this embodiment.
[0018] Reference numerals: 1. Bag body; 2. Flap; 3. Side strip; 4. Bag body; 5. Inner waterproof layer; 6. Outer waterproof layer; 7. Cover; 8. Middle layer; 9. Bottom frame; 10. Divider; 11. First Velcro; 12. Through hole; 13. Absorbent sponge; 14. Connecting strip; 15. First connecting hole; 16. Square strip; 17. Handle; 18. Second connecting hole; 19. Notch; 20. Restricting block; 21. Threaded hole; 22. Screw; 23. Second Velcro; 24. Third Velcro. Detailed Implementation
[0019] The present invention will be further described in detail below with reference to the accompanying drawings.
[0020] This embodiment discloses a waterproof non-woven bag, such as Figures 1 to 6 As shown, this utility model has good waterproof performance and includes a bag body 1, which has a flap 2 and a side strip 3. The bag body 1 includes a bag body 4, an inner waterproof layer 5, and an outer waterproof layer 6. The flap 2 includes a cover 7, an inner waterproof layer 5, and an outer waterproof layer 6. The side strip 3 includes a middle layer 8, an inner waterproof layer 5, and an outer waterproof layer 6. The inner waterproof layer 5 and the outer waterproof layer 6 fully cover the bag body 4, the cover 7, and the side strip 3. When the flap 2 closes the bag body 1, the side strip 3 is located on the outside of the flap 2.
[0021] By adopting the above technical solution: both sides of the bag body 1, both sides of the flap 2, and both sides of the side strip 3 are provided with an inner waterproof layer 5 and an outer waterproof layer 6; the inner waterproof layer 5 and the outer waterproof layer 6 fully cover the bag body 4, the flap 7, and the side strip 3, thereby making the bag body 1 waterproof. When the flap 2 covers the bag body 1, the side strip 3 seals the side of the flap 2, which can prevent water from entering the bag body 1 from between the flap 2 and the short side wall of the bag body 1, thus making the waterproof performance good.
[0022] like Figure 4 As shown, a bottom frame 9 is fixedly installed inside the bag body 1; a partition 10 is installed above the bottom frame; the partition 10 is connected to the bag body 1 by a first Velcro 11; the first Velcro 11 is respectively installed on the four edges of the partition 10 and on the four inner sidewalls of the bag body 1.
[0023] By adopting the above technical solution: the bottom frame 9 supports the partition 10, and the items are placed on the partition 10 to prevent the items from being placed at the bottom of the bag body 1, which may cause deformation or even damage to the bottom of the bag body 1; the first Velcro 11 connects the four edges of the partition 10 and the four inner sidewalls of the bag body 1 respectively, thereby preventing the items from getting stuck between the partition 10 and the bag body 1.
[0024] like Figure 4 As shown, the partition 10 has through holes 12; the bottom inner side of the bottom frame 9 is provided with a water-absorbing sponge 13.
[0025] By adopting the above technical solution, when water accidentally enters the bag body 1, the water can flow out through the through hole 12 on the partition 10 to the water-absorbing sponge 13 set in the bottom frame 9.
[0026] like Figure 2 As shown, a connecting strip 14 is provided on the side wall of the bag body 1; the connecting strip 14 has a first connecting hole 15; a square strip 16 is provided in the first connecting hole 15; the square strip 16 is connected to the second connecting hole 18 on the handle 17 respectively.
[0027] By adopting the above technical solution, the square strip 16 passes through the first connecting hole 15 and the second connecting hole 18 respectively, so that the handle 17 and the connecting strip 14 are connected through the square strip 16.
[0028] like Figure 6 As shown, the square bar 16 has a notch 19; a limiting block 20 is provided at the notch 19; both the limiting block 20 and the square bar 16 have threaded holes 21; a screw 22 is provided at the threaded hole 21; and the screw 22 has a handle.
[0029] By adopting the above technical solution: when it is necessary to replace the handle 17, the screw 22 can be unscrewed from the threaded hole 21 by using the handle, so that the limiting block 20 is disengaged from the notch 19. Then the handle 17 is replaced, and then the limiting block 20 is placed in the notch 19. Finally, the screw 22 is made to engage with the threaded hole 21 on the limiting block 20 and the square bar 16 by using the handle, so that the limiting block 20 is set firmly in the notch 19, thereby completing the replacement of the handle 17.
[0030] like Figure 1 As shown, a second Velcro 23 is provided on the flap 2 and the bag body 1; the second Velcro 23 is located on the flap 2 and the bag body 1 respectively.
[0031] By adopting the above technical solution: when the flap 2 closes the bag body 1, the second Velcro 23 is glued between the two sides, thereby closing the flap 2 and the bag body 1.
[0032] like Figure 1 As shown, the side strip 3 and the flip cover 2 are provided with a third Velcro 24; the third Velcro 24 is located on the side strip 3 and the flip cover 2 respectively; one side of the second Velcro 23 and one side of the third Velcro 24 are located on the two sides of the flip cover 2 respectively.
[0033] By adopting the above technical solution, the flap 2 is closed to the bag body 1 through the side strip 3, which can prevent water from entering the bag body 1 from between the flap 2 and the short side wall of the bag body 1, thus achieving good waterproof performance.
[0034] In summary, this utility model has the following beneficial effects: both sides of the bag body 1, both sides of the flap 2, and both sides of the side strip 3 are provided with an inner waterproof layer 5 and an outer waterproof layer 6; the inner waterproof layer 5 and the outer waterproof layer 6 fully cover the bag body 4, the cover 7, and the side strip 3, thereby making the bag body 1 waterproof. When the flap 2 covers the bag body 1, the other side of the third Velcro 24 on the side strip 3 is bonded to one side of the third Velcro 24 on the flap 2, thereby sealing the side of the flap 2 through the side strip 3, which can prevent water from entering the bag body 1 from between the flap 2 and the short side wall of the bag body 1, thus making the waterproof performance good.
[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A waterproof nonwoven bag, comprising a bag body (1), characterized in that: The bag body (1) has a flap (2) and a side strip (3); the bag body (1) includes a bag body (4), an inner waterproof layer (5), and an outer waterproof layer (6); the flap (2) includes a cover (7), an inner waterproof layer (5), and an outer waterproof layer (6); the side strip (3) includes a middle layer (8), an inner waterproof layer (5), and an outer waterproof layer (6); the inner waterproof layer (5) and the outer waterproof layer (6) fully cover the bag body (4), the cover (7), and the side strip (3); when the flap (2) closes the bag body (1), the side strip (3) is located outside the flap (2).
2. The waterproof nonwoven bag according to claim 1, characterized in that: A bottom frame (9) is fixedly installed inside the bag body (1); a partition (10) is installed above the bottom frame; the partition (10) is connected to the bag body (1) by a first Velcro (11); the first Velcro (11) is installed on the four edges of the partition (10) and the four inner walls of the bag body (1) on both sides respectively.
3. The waterproof nonwoven bag according to claim 2, characterized in that: The partition (10) has a through hole (12); the bottom of the inner side of the bottom frame (9) is provided with an absorbent sponge (13).
4. The waterproof nonwoven bag according to claim 3, characterized in that: A connecting strip (14) is provided on the side wall of the bag body (1); a first connecting hole (15) is provided on the connecting strip (14); a square strip (16) is provided in the first connecting hole (15); the square strip (16) is connected to the second connecting hole (18) on the handle (17).
5. The waterproof nonwoven bag according to claim 4, characterized in that: The square bar (16) has a notch (19); a limiting block (20) is provided at the notch (19); both the limiting block (20) and the square bar (16) have threaded holes (21); a screw (22) is provided at the threaded hole (21); and the screw (22) has a handle.
6. The waterproof nonwoven bag according to claim 5, characterized in that: The flap (2) and the bag body (1) are provided with a second Velcro (23); the second Velcro (23) is located on the flap (2) and the bag body (1) respectively.
7. The waterproof nonwoven bag according to claim 5, characterized in that: The side strip (3) and the flip cover (2) are provided with a third Velcro (24); the third Velcro (24) is located on the side strip (3) and the flip cover (2); the second Velcro (23) side and the third Velcro (24) side are located on the two sides of the flip cover (2).