A paper-plastic sterilization mask packaging bag
By using a paper-plastic composite structure and a reasonable design, the breathability and display properties of mask packaging bags have been improved, solving the problems of insufficient breathability and display properties in existing technologies, and achieving more efficient production and a more convenient user experience.
Patent Information
- Application Number
- CN202522720644.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-23
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-12-23
AI Technical Summary
Existing mask packaging bags have poor breathability and antibacterial properties, as well as poor display, resulting in a cumbersome and costly production process and inconvenience for consumers.
The packaging bag design adopts a paper-plastic composite structure, including a plastic-plastic composite film and double-sided coated dialysis paper, combined with a PP single-track zipper and V-shaped tear opening, and features a heat-sealing area for use with ethylene oxide sterilization. Patterns and text are printed on the plastic-plastic composite film.
It improves the strength and display effect of the packaging bag, simplifies the production process, reduces costs, and provides a convenient way to store and retrieve masks.
Smart Images

Figure CN224941634U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flexible packaging technology, specifically to a paper-plastic sterilization mask packaging bag. Background Technology
[0002] In recent years, people's awareness of respiratory protection has significantly increased, leading to a substantial rise in the demand and usage of protective masks. Masks have become a common household item, with sterile masks being particularly popular due to their sterility and wide applicability. For mask manufacturers aiming to quickly supply sterile masks to the market, mask packaging has become a crucial factor affecting product shipments. Before being marketed, sterile masks must undergo ethylene oxide sterilization and desorption. Because ethylene oxide is toxic, direct contact with mucous membranes or wounds can cause cell damage and carcinogenic risks. National standards require that the residual ethylene oxide content in masks be below 10 μg / g. Therefore, the material and structure of the mask packaging are particularly important, ensuring that ethylene oxide can quickly penetrate the packaging for sterilization and desorption, achieving low residue levels, while also providing excellent protection and display performance for the mask.
[0003] The current problems with sterile mask packaging bags on the market are as follows: First, conventional paper-plastic structure packaging bags are relatively soft, easily deformed and damaged, and have poor display properties. Second, plastic-plastic structure packaging bags are difficult to penetrate with ethylene oxide, making sterilization difficult. They can only be packaged and sterilized first using polyethylene or polypropylene films that are easily permeable to ethylene oxide, and then re-packaged. This process is cumbersome, time-consuming, and costly.
[0004] In summary, existing mask packaging bags suffer from problems such as excessive packaging, poor breathability (due to ethylene oxide) and antibacterial properties, poor display quality, and low convenience for consumers. Utility Model Content
[0005] This invention addresses the problems of excessive packaging, poor breathability (ethylene oxide) and antibacterial properties of existing mask packaging bags, poor display quality, and low convenience for consumers. It proposes a paper-plastic sterilization mask packaging bag.
[0006] This utility model discloses a paper-plastic sterilization mask packaging bag, which comprises an upper part of the packaging bag and a lower part of the packaging bag. The upper part of the packaging bag is formed by heat sealing and pressing two plastic composite films 1 on both sides of the bag body heat sealing area 11. The lower part of the packaging bag is formed by heat sealing and pressing one plastic composite film 1 and one double-sided adhesive dialysis paper 6 on both sides and the bottom edge of the bag body heat sealing area 11. The bottom edge of each plastic composite film 1 on the upper part of the packaging bag is integrally formed with the corresponding double-sided adhesive dialysis paper 6 on the lower part of the packaging bag through the palm-joining heat sealing area 7.
[0007] Furthermore, a PP single-track zipper 8 is provided along the length direction of the top edge of one of the plastic composite films 1 at the top of the packaging bag.
[0008] Furthermore, each of the plastic-plastic composite films 1 has a V-shaped tear 10 on the upper part of both sides;
[0009] Furthermore, each piece of plastic-plastic composite film 1 has a circular hanging hole 9 processed at the top front side;
[0010] Furthermore, the plastic-plastic composite film 1 includes a polyester film layer 2, a printing ink layer 3, an adhesive layer 4, and a cast polypropylene layer 5;
[0011] A printing ink layer 3 is provided on the lower surface of the polyester film layer 2, and the lower surface of the printing ink layer 3 is attached by an adhesive layer 4 and a cast polypropylene layer 5.
[0012] Furthermore, the cast polypropylene layer 5 serves as the inner wall of the upper part of the packaging bag and comes into contact with the outer surface of the mask.
[0013] Furthermore, the double-sided coated dialysis paper 6 is made by coating both sides of medical dialysis paper with a water-based coating heat-sealing adhesive using a gravure coating process and then drying it.
[0014] Furthermore, the basis weight of the double-sided coated dialysis paper 6 is 60~75 g / m²;
[0015] Furthermore, the heat-sealing area 7 is formed by overlapping and heat-sealing the plastic composite film 1 on the upper back of the packaging bag and the double-sided adhesive dialysis paper 6 on the lower back of the packaging bag, with an overlap width of 10mm and a width of 5mm for the heat-sealing area 7; the plastic composite film 1 on the upper front of the packaging bag and the plastic composite film 1 on the lower front of the packaging bag are integrally formed.
[0016] Furthermore, the connector of the plastic-plastic composite film 1 is located on the outside of the bag body, while the connector of the double-sided coated dialysis paper 6 is located inside the bag body.
[0017] Furthermore, the PP monorail zipper 8 has a width of 12mm and a circular hanging hole 9 has a diameter of 8mm.
[0018] Compared with the prior art, the present invention has the following advantages:
[0019] 1. This utility model overcomes the shortcomings of the prior art by using a mask packaging bag with double-sided adhesive dialysis paper partially set on the back. Specifically, the lower part of the packaging bag is formed by heat sealing the two sides and bottom edge of the bag with a plastic composite film and a double-sided adhesive dialysis paper. Compared with the traditional packaging bag with the entire back of the dialysis paper structure, this significantly improves the strength of the bag. The packaging bag has a better display effect when hung or placed on the shelf, and improves the convenience for consumers.
[0020] 2. This utility model overcomes the shortcomings of the prior art. The mask packaging bag has a large area of plastic-plastic composite film, so the patterns and text set on the plastic-plastic composite film can display more content. Conventional gravure printing is used. Dialysis paper printing requires flexographic printing process. The paper surface area is small and the display performance is limited. Moreover, the ink affects the air permeability of the dialysis paper. The double-sided glued dialysis paper is designed to be blank and not printed, which can reduce the complexity of the production process and save energy and reduce costs.
[0021] 3. This utility model overcomes the shortcomings of the prior art. This type of mask packaging bag can directly hold a certain number of masks and then undergo ethylene oxide sterilization. Compared with the method of individually packaging masks, sterilizing them, and then repackaging them, this significantly reduces the complexity of packaging and also reduces the cost of packaging bags. The sealing zipper on this paper-plastic sterilized mask packaging bag facilitates multiple handling of masks and provides a clean and hygienic storage environment for the masks. Attached Figure Description
[0022] Figure 1 This is a rear view of a paper-plastic sterilization mask packaging bag according to the present invention;
[0023] Figure 2 yes Figure 1 A partial lateral section view at point A in the middle;
[0024] Figure 3 This is a side sectional view of the plastic-plastic composite film in the packaging bag of a paper-plastic sterilization mask according to this utility model. Detailed Implementation
[0025] Specific implementation method one: Combining Figure 1 and Figure 2 This embodiment describes a paper-plastic sterilization mask packaging bag, which comprises an upper part and a lower part. The upper part of the packaging bag is formed by heat sealing and pressing two plastic-plastic composite films 1 on both sides of the bag body 11. The lower part of the packaging bag is formed by heat sealing and pressing one plastic-plastic composite film 1 and one double-sided adhesive dialysis paper 6 on both sides and the bottom edge of the bag body 11. The bottom edge of each plastic-plastic composite film 1 on the upper part of the packaging bag is integrally formed with the corresponding double-sided adhesive dialysis paper 6 on the lower part of the packaging bag through the clasp heat sealing area 7.
[0026] In this specific embodiment, a double-sided coated dialysis paper is partially set on the back of the mask packaging bag. Specifically, the lower part of the packaging bag is formed by heat sealing the two sides and the bottom edge of the bag body with a plastic composite film 1 and a double-sided coated dialysis paper 6. Compared with the traditional packaging bag structure where the back is entirely coated with dialysis paper, the strength of the bag body is significantly improved. The packaging bag has a better display effect when hung or placed on the shelf, and improves the convenience for consumers.
[0027] The double-sided coated dialysis paper 6 contains a water-based heat-sealing adhesive, which is Zhejiang Chengying's "Paper Heat-Sealing Adhesive-A2". Its main components are one or more of ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, and ethylene-butyl acrylate copolymer, with added functional additives. It has good heat-sealing performance for polypropylene film and polyethylene film, and the solid content (%) of Paper Heat-Sealing Adhesive-A2 is 25±1.
[0028] Specific Implementation Method Two: Combining Figure 1 and Figure 2 This embodiment further defines the mask packaging bag described in Specific Embodiment 1. In this embodiment, a paper-plastic sterilization mask packaging bag is provided with a PP single-track zipper 8 along the length direction on the top edge of one of the plastic composite films 1 at the top of the packaging bag, and the width of the PP single-track zipper 8 is 12mm.
[0029] Specific implementation method three: Combining Figure 1 and Figure 2 This embodiment further defines the mask packaging bag described in Specific Embodiment Two. In this embodiment, a paper-plastic sterilization mask packaging bag is provided with a V-shaped tear 10 on the upper part of both sides of each plastic-plastic composite film 1.
[0030] Specific implementation method four: Combination Figure 1 and Figure 2 This embodiment further defines the mask packaging bag described in Specific Embodiment 3. In this embodiment, each piece of plastic composite film 1 has a circular hanging hole 9 processed at the top front, and the diameter of the circular hanging hole 9 is 8mm.
[0031] Specific Implementation Method Five: Combining Figures 1 to 3 This embodiment further defines the mask packaging bag described in Specific Embodiment 1. The paper-plastic sterilization mask packaging bag described in this embodiment includes a plastic-plastic composite film 1 comprising a polyester film layer 2, a printing ink layer 3, an adhesive layer 4, and a cast polypropylene layer 5.
[0032] A printing ink layer 3 is provided on the lower surface of the polyester film layer 2, and the lower surface of the printing ink layer 3 is attached by an adhesive layer 4 and a cast polypropylene layer 5.
[0033] In this specific embodiment, the large area of the mask packaging bag is made of plastic-plastic composite film, so the patterns and text set on the plastic-plastic composite film can display more content, and conventional gravure printing is used; dialysis paper printing requires flexographic printing process, the paper surface area is small and the display performance is limited, and the ink affects the air permeability of dialysis paper. The double-sided coated dialysis paper is designed to be blank and not printed, which can reduce the complexity of the production process and save energy and reduce costs.
[0034] Specific Implementation Method Six: Combination Figures 1 to 3 This embodiment further defines the mask packaging bag described in Specific Embodiment Five. In this embodiment, the cast polypropylene layer 5 serves as the inner wall of the upper part of the packaging bag and is in contact with the outer surface of the mask.
[0035] Specific implementation method seven: Combining Figures 1 to 3 This embodiment further defines the mask packaging bag described in Specific Embodiment 1. The paper-plastic sterilization mask packaging bag described in this embodiment uses double-sided coated dialysis paper 6, which is made by coating both sides of medical dialysis paper with a water-based coating heat-sealing adhesive using a gravure coating process and then drying it.
[0036] Specific implementation method eight: Combination Figures 1 to 3 This embodiment further defines the mask packaging bag described in Specific Embodiment Seven. In this embodiment, the double-sided coated dialysis paper 6 of the paper-plastic sterilization mask packaging bag has a basis weight of 60~75g / m².
[0037] Specific Implementation Method Nine: Combining Figures 1 to 3 This embodiment further defines the mask packaging bag described in Specific Embodiment 1. In this embodiment, a paper-plastic sterilization mask packaging bag is provided, wherein the heat-sealing area 7 is formed by overlapping and heat-sealing the plastic-plastic composite film 1 on the upper back of the packaging bag and the double-sided adhesive dialysis paper 6 on the lower back of the packaging bag, with an overlap width of 10mm and a heat-sealing area 7 width of 5mm; the plastic-plastic composite film 1 on the upper front of the packaging bag and the plastic-plastic composite film 1 on the lower front of the packaging bag are integrally formed.
[0038] Specific Implementation Method Ten: Combining Figures 1 to 3 This embodiment further defines the mask packaging bag described in Specific Embodiment Nine. In this embodiment, the plastic-plastic sterilization mask packaging bag has the plastic-plastic composite film 1 connector located on the outside of the bag body, and the double-sided adhesive dialysis paper 6 connector located on the inside of the bag body.
Claims
1. A paper-plastic sterilization mask packaging bag, characterized in that: It includes an upper part and a lower part of the packaging bag. The upper part of the packaging bag is formed by heat sealing and pressing the two sides of the bag body heat sealing area (11) of two plastic composite films (1). The lower part of the packaging bag is formed by heat sealing and pressing the two sides and bottom edge of the bag body heat sealing area (11) of one plastic composite film (1) and one double-sided coated dialysis paper (6). The bottom edge of each plastic composite film (1) on the upper part of the packaging bag is heat-pressed into one piece with the corresponding double-sided coated dialysis paper (6) on the lower part of the packaging bag through the clasp heat sealing area (7).
2. The paper-plastic sterilization mask packaging bag according to claim 1, characterized in that: The top edge of one of the plastic composite films (1) at the top of the packaging bag is provided with a PP single-track zipper (8) along the length direction, and the width of the PP single-track zipper (8) is 12mm.
3. The paper-plastic sterilization mask packaging bag according to claim 2, characterized in that: Each plastic-plastic composite film (1) has a V-shaped tear (10) on the upper part of both sides.
4. The paper-plastic sterilization mask packaging bag according to claim 3, characterized in that: Each plastic composite film (1) has a circular hanging hole (9) processed at the top front, and the diameter of the circular hanging hole (9) is 8mm.
5. The paper-plastic sterilization mask packaging bag according to claim 1, characterized in that: The plastic-plastic composite film (1) includes a polyester film layer (2), a printing ink layer (3), an adhesive layer (4), and a cast polypropylene layer (5). A printing ink layer (3) is provided on the lower surface of the polyester film layer (2), and the lower surface of the printing ink layer (3) is attached by an adhesive layer (4) and a cast polypropylene layer (5).
6. A paper-plastic sterilization mask packaging bag according to claim 5, characterized in that: The cast polypropylene layer (5) serves as the inner wall of the upper part of the packaging bag and is in contact with the outer surface of the mask.
7. The paper-plastic sterilization mask packaging bag according to claim 1, characterized in that: The double-sided coated dialysis paper (6) is made by coating both sides of medical dialysis paper with a water-based coating and heat-sealing adhesive using a gravure coating process, followed by drying.
8. A paper-plastic sterilization mask packaging bag according to claim 7, characterized in that: The basis weight of the double-sided coated dialysis paper (6) is 60~75 g / m².
9. A paper-plastic sterilization mask packaging bag according to claim 1, characterized in that: The heat-sealing area (7) is formed by overlapping and heat-sealing the plastic composite film (1) on the upper back of the packaging bag and the double-sided adhesive dialysis paper (6) on the lower back of the packaging bag, with an overlap width of 10mm and a width of 5mm for the heat-sealing area (7); the plastic composite film (1) on the upper front of the packaging bag and the plastic composite film (1) on the lower front of the packaging bag are integrally formed.
10. A paper-plastic sterilization mask packaging bag according to claim 9, characterized in that: The joint of the plastic-plastic composite film (1) is located on the outside of the bag body, and the joint of the double-sided coated dialysis paper (6) is located inside the bag body.
