Paper bag with novel mildew-proof structure
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-04
- Publication Date
- 2026-08-11
AI Technical Summary
[0004]在实际使用过程中,纸袋容易受到环境湿度、温度等因素的影响,导致袋内物品发霉变质,尤其是在潮湿的环境中,霉菌的滋生速度更快,严重影响了袋内物品的质量和保质期
[0019]本实用新型防霉夹层内的多个防霉腔室填充有防霉颗粒,且防霉腔室的腔壁上和防霉夹层两侧分别开设有微孔和圆通孔,使防霉颗粒能够持续释放防霉成分,有效抑制霉菌的生长,大大提高了纸袋的防霉性能,纸袋本体开口的翻盖和底部的防潮底座,进一步提高了纸袋的防潮性能,减少外界湿气对袋内物品的影响,延长了物品的保质期。
Smart Images

Figure CN224618418U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of paper bag technology, specifically a paper bag with a novel anti-mildew structure. Background Technology
[0002] Paper bags, as a common packaging container, are widely used in many fields such as food, clothing, and gifts due to their advantages such as being environmentally friendly, low-cost, and convenient to use.
[0003] However, the existing technology has the following drawbacks:
[0004] In practical use, paper bags are easily affected by environmental humidity, temperature, and other factors, leading to mold and spoilage of the items inside. This is especially true in humid environments, where mold grows much faster, severely impacting the quality and shelf life of the contents. Some paper bags on the market are coated with anti-mold agents to improve their anti-mold performance; however, these coatings are easily worn away during use, gradually reducing their effectiveness. Adding anti-mold agents, if unevenly distributed, can result in localized poor anti-mold effects, and some anti-mold agents may also pose certain health risks to the environment or human health. Utility Model Content
[0005] The purpose of this invention is to provide a paper bag with a novel anti-mildew structure to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a paper bag with a novel anti-mildew structure, comprising a paper bag body, the paper bag body comprising an inner layer of paper and an outer layer of paper, an anti-mildew interlayer provided between the inner layer of paper and the outer layer of paper, a plurality of anti-mildew chambers evenly distributed inside the anti-mildew interlayer, and the interior of the anti-mildew chambers being filled with anti-mildew particles, a plurality of micropores evenly opened on the cavity wall of the anti-mildew chambers, a plurality of round through holes evenly opened on both sides of the anti-mildew interlayer, a moisture-proof base provided at the bottom of the paper bag body, a sealing card seat embedded in the outer wall of the top front of the paper bag body, and a flip cover provided at the top back of the paper bag body, a sealing strip fixedly installed on the inner side of the flip cover away from the paper bag body, the sealing strip being snapped into the interior of the sealing card seat.
[0007] The above technical solution features an anti-mold interlayer located between the inner and outer paper layers, with anti-mold chambers evenly distributed between them. This avoids situations where the anti-mold effect is poor in certain areas. The moisture-proof base prevents the bottom of the paper bag from directly contacting the ground or countertop, thus preventing mold from spreading and growing from the bottom of the paper bag.
[0008] The paper bag body has creases in the middle of both sides, and creases with an inclination angle of 45 degrees are provided at the bottom of the middle of both sides. The bottom of the back of the paper bag body has a crease, and the height of the back crease is the same as the top height of the 45-degree inclination crease.
[0009] Using the above technical solution, the paper bag can be folded and stored through creases, making it convenient for recycling, preservation, and reuse.
[0010] The anti-mildew particles are activated carbon particles or nano-silver particles, and the pore diameter of the micropores and the pore diameter of the through holes are both 0.1-0.5 mm.
[0011] Using the above technical solution, the activated carbon particles have good adsorption function, which can adsorb moisture and odor inside the bag, while the nano silver has broad-spectrum antibacterial properties, which can effectively inhibit the growth of mold. The micropores and round through-holes can not only ensure that the anti-mold ingredients released by the anti-mold particles diffuse into the inside of the paper bag, but also prevent external dust and impurities from entering the anti-mold chamber and affecting the anti-mold effect.
[0012] The moisture-proof base includes a base plate, the top of which is uniformly coated with hot melt adhesive and is bonded to the bottom of the paper bag body by hot melt technology. Moisture-proof support columns are provided at the four corners of the bottom of the base plate.
[0013] By adopting the above technical solution, the moisture-proof support column can elevate the paper bag body, prevent the bottom of the paper bag body from directly contacting the ground, and reduce the impact of ground moisture on the paper bag.
[0014] The base plate and the moisture-proof support column are both made of acrylic material and are integrally formed. The outer side of the paper bag body is covered with a waterproof membrane and coated with glue. The waterproof membrane is bonded to the outer wall of the paper bag body.
[0015] The above technical solution provides a base plate with a certain degree of rigidity, ensuring that the paper bag stands upright on a flat surface, and a waterproof membrane that provides waterproof and moisture-proof protection, preventing external moisture from affecting the inside of the paper bag.
[0016] The paper bag body is provided with handles on the top front and top back. The handles are made of silk cloth and are fixed to the paper bag body by fasteners at both ends.
[0017] Using the above technical solution, the handle makes it easy to carry the paper bag when going out. The two ends of the silk strip are fixedly connected to the paper bag, which is tight and secure, preventing it from falling off. The silk strip is soft and hangs down naturally when not in use, without affecting the opening and closing of the flap.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] This utility model has multiple anti-mold chambers within its anti-mold interlayer filled with anti-mold particles. Micropores and through holes are respectively provided on the walls of the anti-mold chambers and on both sides of the anti-mold interlayer, allowing the anti-mold particles to continuously release anti-mold components, effectively inhibiting mold growth and greatly improving the anti-mold performance of the paper bag. The flap at the opening of the paper bag body and the moisture-proof base at the bottom further enhance the moisture-proof performance of the paper bag, reducing the impact of external moisture on the items inside the bag and extending the shelf life of the items. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a side view of the present invention.
[0022] Figure 3 This is a cross-sectional structural diagram of the paper bag body of this utility model;
[0023] Figure 4 This is a schematic diagram of the moisture-proof base structure of this utility model.
[0024] In the diagram: 1. Paper bag body; 2. Flip-top; 3. Handle; 4. Moisture-proof base; 5. Sealing strip; 6. Sealing card holder; 7. Inner paper layer; 8. Anti-mildew interlayer; 9. Anti-mildew chamber; 10. Micropores; 11. Anti-mildew particles; 12. Round through hole; 13. Outer paper layer; 14. Waterproof membrane; 15. Base plate; 16. Moisture-proof support column. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figure 1-4This utility model provides a paper bag with a novel anti-mildew structure, including a paper bag body 1, which includes an inner paper layer 7 and an outer paper layer 13. An anti-mildew interlayer 8 is provided between the inner paper layer 7 and the outer paper layer 13. Several anti-mildew chambers 9 are evenly distributed inside the anti-mildew interlayer 8, and the anti-mildew chambers 9 are filled with anti-mildew particles 11. Several micropores 10 are evenly opened on the cavity wall of the anti-mildew chambers 9. Several round through holes 12 are evenly opened on both sides of the anti-mildew interlayer 8. A moisture-proof base 4 is provided at the bottom of the paper bag body 1. A sealing card seat 6 is embedded in the outer wall of the top front of the paper bag body 1, and a flip cover 2 is provided at the top back. A sealing strip 5 is fixedly installed on the inner side of the flip cover 2 away from the paper bag body 1. The sealing strip 5 is snapped into the inside of the sealing card seat 6. The sealing strip 5 and the sealing card seat 6 are correspondingly set and snapped together to seal the bag opening and effectively prevent external moisture from entering the bag.
[0027] The paper bag body 1 has creases in the middle of both sides, and creases with an inclination angle of 45 degrees are provided at the bottom of the middle of both sides. The bottom of the back of the paper bag body 1 has a crease, and the height of the crease on the back is the same as the top height of the 45-degree inclination crease.
[0028] The anti-mildew particles 11 are activated carbon particles or nano-silver particles. The pore diameter of the micropores 10 and the pore diameter of the round holes 12 are both 0.1-0.5mm, which greatly improves the anti-mildew effect of the paper bag.
[0029] The moisture-proof base 4 includes a base plate 15. The top of the base plate 15 is uniformly coated with hot melt adhesive and is bonded to the bottom of the paper bag body 1 by hot melt technology. Moisture-proof support columns 16 are provided at the four corners of the bottom of the base plate 15. The base plate 15 is fixedly connected to the bottom of the paper bag body 1, and the moisture-proof support columns 16 have a certain thickness.
[0030] The base plate 15 and the moisture-proof support column 16 are both made of acrylic material and are integrally formed. The outer side of the paper bag body 1 is covered with a waterproof membrane 14. The outer side of the paper bag body 1 is coated with glue, and the waterproof membrane 14 is bonded to the outer wall of the paper bag body 1. The waterproof membrane 14 is tightly connected to the outer side of the paper bag body 1.
[0031] The paper bag body 1 has handles 3 on the top of the front and the top of the back. The handles 3 are made of silk cloth and are fixed to the paper bag body 1 by fasteners. The handles 3 on both sides are the same length, making it easy to lift the paper bag.
[0032] Working principle: When using this utility model, pinch one side of the bottom of the flip cover 2 and pull it open slightly to pull out the sealing strip 5. Flip the flip cover 2 open, put the items into the paper bag body 1, then close the flip cover 2, press the sealing strip 5 to squeeze it into the sealing seat 6, and complete the closure and sealing of the bag opening. This can prevent external moisture from entering the bag. The activated carbon inside the anti-mold interlayer 8 can absorb the moisture and odor inside the paper bag body 1, and the nano silver particles can inhibit the growth of mold. The two work together to greatly improve the anti-mold performance of the bag. The moisture-proof base 4 raises the paper bag body 1 to avoid its bottom from directly contacting the ground and reduce the impact of ground moisture on the paper bag. The paper bag body 1 can be lifted by the handle 3 for easy carrying when going out.
[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A paper bag with a novel anti-mildew structure, comprising a paper bag body (1), characterized in that: The paper bag body (1) includes an inner layer paper (7) and an outer layer paper (13). An anti-mildew interlayer (8) is provided between the inner layer paper (7) and the outer layer paper (13). Several anti-mildew chambers (9) are evenly distributed inside the anti-mildew interlayer (8), and the anti-mildew chambers (9) are filled with anti-mildew particles (11). Several micropores (10) are evenly opened on the cavity wall of the anti-mildew chambers (9). Several round through holes (12) are evenly opened on both sides of the anti-mildew interlayer (8). A moisture-proof base (4) is provided at the bottom of the paper bag body (1). A sealing card seat (6) is embedded in the outer wall of the top front of the paper bag body (1), and a flip cover (2) is provided on the top back. A sealing strip (5) is fixedly installed on the inner side of the flip cover (2) away from the paper bag body (1). The sealing strip (5) is snapped into the inside of the sealing card seat (6).
2. The paper bag with a novel anti-mildew structure according to claim 1, characterized in that: The paper bag body (1) has creases in the middle of both sides, and creases with an inclination angle of 45 degrees are provided at the bottom of the middle of both sides. The paper bag body (1) has creases at the bottom of the back side, and the height of the creases on the back side is the same as the top height of the 45-degree inclination crease.
3. A paper bag with a novel anti-mildew structure according to claim 1, characterized in that: The anti-mildew particles (11) are activated carbon particles or nano-silver particles, and the pore diameter of the micropores (10) and the pore diameter of the through holes (12) are both 0.1-0.5 mm.
4. A paper bag with a novel anti-mildew structure according to claim 1, characterized in that: The moisture-proof base (4) includes a base plate (15), the top of which is uniformly coated with hot melt adhesive and is bonded to the bottom of the paper bag body (1) by hot melt technology. Moisture-proof support columns (16) are provided at the four corners of the bottom of the base plate (15).
5. A paper bag with a novel anti-mildew structure according to claim 4, characterized in that: The base plate (15) and the moisture-proof support column (16) are both made of acrylic material and are integrally formed. The outer side of the paper bag body (1) is covered with a waterproof membrane (14). The outer side of the paper bag body (1) is coated with glue, and the waterproof membrane (14) is bonded to the outer wall of the paper bag body (1).
6. A paper bag with a novel anti-mildew structure according to claim 1, characterized in that: The paper bag body (1) is provided with handles (3) on the top front and the top back. The handles (3) are made of silk cloth and are fastened to the paper bag body (1) by fasteners at both ends.