Plastic-paper-substituted sanitary towel packaging paper bag

Abstract

The utility model relates to the technical field of packaging bags, in particular to a plastic paper substitute sanitary towel packaging paper bag which comprises a plastic paper substitute bag body, the plastic paper substitute bag body comprises a bottom piece and two opposite side pieces, the bottom piece and the two side pieces are connected in a composite mode to form a storage cavity for containing sanitary towels, and the sanitary towels in the storage cavity and release paper adhering to the back faces of the sanitary towels are wound in a spiral shape. According to the utility model, the plastic-substituted paper material is adopted, the side pieces and the bottom piece respectively comprise the heat sealing layer, the paper base layer and the waterproof coating from inside to outside, and compared with the traditional plastic packaging material, the plastic-substituted paper material is adopted as a whole, so that the pollution to the environment can be reduced; the packaging paper bag is opened by tearing the easy-to-tear tape on the side piece, and the tail end of the easy-to-tear tape is connected with the release paper through the guide strip, so that a user can open the packaging paper bag and peel off the release paper through one-time operation.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bags, and specifically relates to a plastic-free paper sanitary napkin packaging paper bag. Background Art

[0002] Sanitary napkin paper bag packaging bags generally adopt a bag structure and have a sealing design to prevent the leakage of contents. Some packaging bags are also equipped with a tear-open notch or a handle for the convenience of consumers. Among them, single-piece independent packaging individually packages each sanitary napkin, usually using small bags or films for encapsulation, which is convenient for carrying and maintaining hygiene. Single-piece independent packaging can effectively prevent the sanitary napkin from being contaminated during the carrying process and at the same time is convenient for users to take according to their needs.

[0003] For example, a single-piece sanitary napkin packaging paper bag (Publication No.: CN219155265U, Publication Date: June 9, 2023) includes a bag body. The bag body is a paper bag. One end of the bag body is fixedly connected with a tear strip. The tear strip is a paper strip. Two pull ropes are fixedly connected inside the tear strip. The pull ropes penetrate through the tear strip. One end of the pull rope is fixedly connected with a finger cot. The end of the pull rope far from the finger cot is fixedly connected with a stop ball. A plurality of cylindrical blocks are fixedly connected to the surface of the pull rope. The plurality of cylindrical blocks are equidistantly distributed on the surface of the pull rope. The cylindrical blocks are fixedly connected with the tear strip. A moisture-proof layer is adhesively bonded to the inner wall of the bag body. The moisture-proof layer is a polypropylene film layer.

[0004] Through the cooperation of various components in this application, when it is necessary to open the bag body to take out the sanitary napkin, only one hand can be used for operation, thus facilitating the user to take out the sanitary napkin. The operation is very convenient, improving the practicability of the bag body. However, if the materials of the pull rope and the finger cot in the packaging paper bag of this application are too hard or the sizes are inappropriate, it may cause discomfort to the user's hand during use. The finger cot is a protruding structure compared to the overall structure and is prone to accidental touch during storage. Although the paper bag itself is made of degradable environmental protection materials, components such as finger cots and support rings may be made of non-environmental protection materials, increasing the difficulty of disposal after being discarded. Summary of the Utility Model

[0005] Aiming at the technical defects in the background art, the utility model provides a plastic-free paper sanitary napkin packaging paper bag, which solves the above technical problems and meets the actual needs. The specific technical solutions are as follows:

[0006] A plastic-free paper sanitary napkin packaging paper bag, including a plastic-free paper bag. The plastic-free paper bag includes a bottom sheet and two opposite side sheets. The two side sheets are respectively arranged above the bottom sheet. The bottom sheet and the two side sheets are compounded and connected to form a storage cavity for accommodating sanitary napkins. The sanitary napkins and the release paper adhered to the back thereof in the storage cavity are spirally wound. The side sheets and the bottom sheet are respectively made of plastic-free paper materials. The side sheets and the bottom sheet respectively include a heat-sealing layer, a paper base layer and a waterproof coating from the inside to the outside;

[0007] An easy tear strip and a guiding strip are provided on the side sheet. The easy tear strip is a strip-shaped easy tear dotted line structure that surrounds the storage cavity and is arranged in the middle of the side sheet. The easy tear strip has a starting end and an ending end. The starting end is arranged on the outside of the side sheet and is connected with an easy tear piece. The inner wall of the ending end is compounded with a guiding strip. One end of the guiding strip far away from the easy tear strip is connected to the edge of the release paper.

[0008] As a further technical solution of the present utility model, the opposite two ends of the bottom sheet are respectively compounded and connected to the bottom edges of each side sheet, and the other three edges of the two side sheets are compounded and connected to each other.

[0009] As a further technical solution of the present utility model, the compounded part of the edges of the two side sheets is a sealing edge. The sealing edge includes a top sealing edge and a side sealing edge. The top sealing edge is arranged at the top end of the side sheet, and the side sealing edge is arranged at the left and right ends of the side sheet. The starting end of the easy tear strip and the easy tear piece are arranged on one of the side sealing edges.

[0010] As a further technical solution of the present utility model, the side sheet is divided into an easy tear area and a non-easy tear area according to the setting position of the easy tear strip. The guiding strip is fixedly connected to the easy tear area, and the guiding strip is in contact with the non-easy tear area and is not fixed.

[0011] As a further technical solution of the present utility model, the edges of the two side sheets are adhered together through their respective heat-sealing layers, and the side sheets and the bottom sheet are respectively adhered together through their respective heat-sealing layers.

[0012] As a further technical solution of the present utility model, the easy tear strip is made by cutting a dotted line on the side sheet, and the guiding strip is fixed on the heat-sealing layer of the easy tear strip.

[0013] As a further technical solution of the present utility model, the guiding strip is arranged on the side of the release paper away from the sanitary napkin.

[0014] The beneficial effects of the present utility model are as follows:

[0015] The present utility model adopts a plastic - substitute paper material. The side pieces and the bottom piece respectively include a heat - seal layer, a paper base layer, and a waterproof coating from the inside to the outside. Compared with traditional plastic packaging materials, the overall use of the plastic - substitute paper material in the present utility model can reduce environmental pollution. The waterproof coating can effectively prevent moisture from entering the inside of the packaging bag, thereby extending its shelf life and usage effect. The heat - seal layer not only prevents the sanitary napkin from being contaminated by the outside during storage and transportation but also enables the side pieces and the bottom piece to be adhesively compounded with each other.

[0016] The packaging paper bag of the present utility model includes a bottom piece and two opposite side pieces, forming a storage cavity. Inside the storage cavity, the sanitary napkin and the release paper adhered to its back are spirally wound. The packaging paper bag can be opened by tearing the tear - off strip on the side piece, and the end of the tear - off strip is connected to the release paper through a guiding strip, enabling the user to open the packaging paper bag and peel off the release paper with one operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a packaging paper bag for a plastic - substitute paper sanitary napkin.

[0018] Figure 2 It is an internal structure diagram of a packaging paper bag for a plastic - substitute paper sanitary napkin.

[0019] Figure 3 It is a disassembled structural diagram of a packaging paper bag for a plastic - substitute paper sanitary napkin.

[0020] Wherein: bottom piece 1, side piece 2, tear - off strip 21, guiding strip 22, tear - off area 23, non - tear - off area 24, tear - off piece 26, sanitary napkin 3, release paper 4. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following combines the Figures 1 to 3 accompanying drawings and related embodiments to illustrate the embodiments of the present utility model. The embodiments of the present utility model are not limited to the following embodiments, and the relevant necessary components involved in the present utility model should be regarded as well - known technologies in the technical field, which can be known and mastered by those skilled in the technical field.

[0022] The present utility model provides a packaging paper bag for a plastic - substitute paper sanitary napkin 3. As Figure 1 shown, it includes a plastic - substitute paper bag. The plastic - substitute paper bag includes a bottom piece 1 and two opposite side pieces 2. The two side pieces 2 are respectively arranged above the bottom piece 1. The bottom piece 1 and the two side pieces 2 are compound - connected to form a storage cavity for accommodating the sanitary napkin 3. Inside the storage cavity, the sanitary napkin 3 and the release paper 4 adhered to its back are spirally wound. The side piece 2 and the bottom piece 1 respectively adopt a plastic - substitute paper material, and the side piece 2 and the bottom piece 1 respectively include a heat - seal layer, a paper base layer, and a waterproof coating from the inside to the outside.

[0023] This utility model uses plastic-free paper material. The side piece 2 and the bottom piece 1 respectively include a heat-sealing layer, a paper base layer, and a waterproof coating from the inside to the outside. Compared with traditional plastic packaging materials, this utility model uses plastic-free paper material as a whole, which can reduce environmental pollution. The waterproof coating can effectively prevent moisture from entering the inside of the packaging bag, thereby extending its shelf life and usage effect. In addition to preventing the sanitary napkin 3 from being contaminated by the outside during storage and transportation, the heat-sealing layer also enables the side piece 2 and the bottom piece 1 to be adhesively compounded with each other.

[0024] As Figure 2 shown in Figure 3 the figure, an easy-tear strip 21 and a guiding strip 22 are provided on the side piece 2. The easy-tear strip 21 is a strip-shaped easy-tear dotted line structure that surrounds the storage cavity and is provided in the middle of the side piece 2. The easy-tear strip 21 has a starting end and a terminal end. The starting end is provided on the outside of the side piece 2 and is connected to an easy-tear piece 26. The inner wall of the terminal end is compounded with the guiding strip 22. One end of the guiding strip 22 away from the easy-tear strip 21 is connected to the edge of the release paper 4.

[0025] The packaging paper bag of this utility model includes a bottom piece 1 and two opposite side pieces 2 to form a storage cavity. Inside the storage cavity, the sanitary napkin 3 and the release paper 4 adhered to its back are spirally wound. By tearing the easy-tear strip 21 on the side piece 2, the packaging paper bag can be opened, and the terminal end of the easy-tear strip 21 is connected to the release paper 4 through the guiding strip 22, enabling the user to open the packaging paper bag and peel off the release paper 4 with one operation.

[0026] More specifically, the packaging structures of the sanitary napkin 3 mainly include the following types: 1) Single-piece independent packaging: In this packaging method, each sanitary napkin 3 is individually packaged, usually using small bags or films for encapsulation, which is convenient for carrying and maintaining hygiene. The single-piece independent packaging can effectively prevent the sanitary napkin 3 from being contaminated during carrying and is also convenient for users to take according to their needs. 2) Multi-piece collective packaging: Multiple sanitary napkins 3 are packaged together, usually using cartons, plastic boxes, or aluminum foil bags as outer packages. This packaging method is suitable for household use and is convenient for storage and taking. 3) Easy-pull packaging: The outer package made of aluminum foil paper is equipped with an easy-pull seal. This packaging method allows users to close the inside again after taking out the sanitary napkin 3 from the inside, thereby reducing contamination and maintaining the sterility and moisture-proofness of the product.

[0027] Among them, single-piece independent packaged sanitary napkins 3 generally use PE film, non-woven fabric film, composite non-woven fabric film, aluminum foil film, etc. as packaging materials. These materials have their own advantages and disadvantages, but they can all effectively protect the hygiene, portability, and easy access of the sanitary napkin 3. At the same time, auxiliary materials such as film line glue and quick sticker may also be used in the packaging design to improve the user experience.

[0028] The PE film has excellent waterproof performance, can effectively prevent liquid leakage, keep the sanitary napkin 3 dry, and the production cost of the PE film is relatively low, which helps to reduce the overall cost of the sanitary napkin 3. However, compared with other degradable materials, the environmental protection performance of the PE film is poor and it is not easy to degrade. The non-woven fabric envelope has good air permeability, which helps to keep the sanitary napkin 3 dry. However, compared with the PE film, the waterproof performance of the non-woven fabric is weaker, and additional treatment may be required to improve the waterproof performance. The aluminum foil envelope has excellent barrier performance and can effectively prevent the invasion of bacteria, fungi and insects. However, the production cost of the aluminum foil envelope is high and the air permeability is poor.

[0029] From the perspective of environmental protection, the plastic-free paper can better integrate these aspects. The plastic-free paper generally consists of a heat-sealing layer, a paper base layer and a coating. The coating and the heat-sealing layer can effectively prevent liquid leakage and keep the sanitary napkin 3 dry, and the plastic-free paper is easily degradable.

[0030] The side piece 2 and the bottom piece 1 of this application respectively include a heat-sealing layer, a paper base layer and a waterproof coating from the inside to the outside. The waterproof coating provided on the outermost layer, its main function is to prevent the penetration of moisture, grease and other liquids. This is of great significance for protecting the items in the package from moisture and contamination. The paper base layer is the main part of the plastic-free paper bag, which provides the basic shape and support force of the paper bag. At the same time, the paper base layer also has certain air permeability and degradability, meeting the environmental protection requirements. The heat-sealing layer is a layer inside the plastic-free paper bag, and its main function is to provide reliable sealing performance. Through heat-sealing technology, the opening part of the paper bag can be tightly sealed to prevent the leakage of internal items or the entry of external air and moisture. This is crucial for keeping the items in the package dry, fresh and safe.

[0031] Preferably, the heat-sealing layer of this application selects degradable materials such as polylactic acid, polybutylene succinate-butylene terephthalate, etc. Polylactic acid is made from starch raw materials extracted from renewable plant resources (such as corn). It has excellent biocompatibility, degradability and environmental protection performance, and is one of the materials with relatively high cost performance in the current biodegradable plastic industry. The waterproof layer selects degradable materials such as bio-based waterproof materials, biodegradable ethylene propylene diene monomer materials, natural plant fiber composite materials, biodegradable coatings, etc., to achieve the waterproof function while meeting the environmental protection requirements.

[0032] For the previous single-piece sanitary napkin 3 packaging bag, in order to ensure the easy tearing degree and the easy peeling degree of the release paper 4, the sealing performance of the sanitary napkin 3 is often sacrificed. For example, a quick-release sticker is set at the edge of the packaging bag, which reduces the cumbersome steps when opening the package and improves the user experience. However, the quick-release sticker is easy to damage the packaging bag during the tearing process, and the quick-release sticker is torn out alone. To solve this situation, the adhesive edge of the quick-release sticker is set on the packaging bag of some sanitary napkins 3 to reduce its adhesion firmness, making the packaging bag easier to open, which often reduces the sealing performance of the packaging bag.

[0033] On the side piece 2 of the present utility model, there are a tear strip 21 and a guiding strip 22. The tear strip 21 is a strip-shaped tear dotted line structure that encircles the storage cavity and is arranged in the middle of the side piece 2. By means of the tear line, while ensuring the sealing performance of the edge of the plastic-free paper bag, it enables users to more easily open the plastic-free paper bag. The sanitary napkin 3 and the release paper 4 adhered to its back are spirally wound. The end of the tear strip 21 is connected to the release paper 4 through the guiding strip 22. By pulling the tear strip 21 on the side piece 2, users can open the packaging paper bag and peel off the release paper 4 with one operation.

[0034] Compared with the traditional flat packaging of the sanitary napkin 3, the sanitary napkin 3 of the present utility model is spirally wound, which can make it easier for the tear strip 21 to drive the release paper 4 to peel off, and there will be no situation where the folding of the sanitary napkin restricts the peeling of the release paper 4.

[0035] As one of the preferred embodiments of the present utility model, as Figure 1 shown, the opposite ends of the bottom sheet 1 are respectively compound-connected to the bottom edges of each side piece 2, and the other three edges of the two side pieces 2 are compound-connected to each other. The bottom sheet 1 and the edges of the two side pieces 2 are compounded to form a closed storage cavity, and the sealing performance at the edge of the plastic-free paper bag is ensured, and it can prevent external moisture, dust and bacteria from entering the interior of the plastic-free paper bag.

[0036] As one of the preferred embodiments of the present utility model, as Figure 1 shown, the compounding part of the edges of the two side pieces 2 is a sealing edge, and the sealing edge includes a top sealing edge and side sealing edges. The top sealing edge is arranged at the top end of the side piece 2, and the side sealing edges are arranged at the left and right ends of the side piece 2. The starting end of the tear strip 21 and a tear tab 26 are arranged on one of the side sealing edges. The starting end of the tear strip 21 and the tear tab 26 are arranged on one of the side sealing edges. Such a design facilitates users to easily open the packaging of the sanitary napkin 3 or tear off part of the material before use. The tear tab 26 may be a label, mark or specific material area for indicating the starting position for users to tear. The top sealing edge and the side sealing edges together constitute an important part of the plastic-free paper bag. They not only enhance the structural stability and sealing performance of the sanitary napkin 3, but also improve the user-friendliness.

[0037] As one of the preferred embodiments of the present utility model, as Figure 3 shown, the side piece 2 is divided into a tear area 23 and a non-tear area 24 according to the setting position of the tear strip 21. The guiding strip 22 is fixedly connected to the tear area 23, and the guiding strip 22 contacts but is not fixed to the non-tear area 24. The fixed connection between the guiding strip 22 and the tear area 23 enables users to easily find and accurately tear the tear area 23, that is, the tear strip 21, through the tear tab 26 when they need to open the plastic-free paper bag. The guiding strip 22 is firmly connected to the tear area 23 to ensure that it will not break away from or damage the tear area 23 during the tearing process.

[0038] The guiding strip 22 contacts but is not fixed to the non-tearable area 24, which means that although the guiding strip 22 touches the non-tearable area 24, it is not firmly connected to it. The purpose of this is to avoid damage or detachment of the guiding strip 22 from the release paper 4 due to the fixation of the non-tearable area 24 when tearing the tearable area 23, which is not convenient for subsequent peeling of the release paper 4.

[0039] As one of the preferred embodiments of the present utility model, the edges of the two side pieces 2 are adhered together through their respective heat-sealing layers, and the side pieces 2 and the bottom piece 1 are adhered together through their respective heat-sealing layers. Each of the edges of the two side pieces 2 has a heat-sealing layer. When these heat-sealing layers come into contact with each other under specific temperature and pressure, they will melt and adhere together to form a firm connection. This connection method not only ensures the sealing between the side pieces 2 but also improves the overall structural strength of the plastic-free paper bag. By precisely controlling the temperature and time of heat-sealing, it can ensure that the connection is both firm and aesthetically pleasing. Similarly, the side pieces 2 and the bottom piece 1 are also adhered through their respective heat-sealing layers.

[0040] As one of the preferred embodiments of the present utility model, as Figure 3 shown, the tear strip 21 is made by cutting a dotted line on the side piece 2, and the guiding strip 22 is fixed to the heat-sealing layer of the tear strip 21. The tear strip 21 is made by cutting a dotted line (also known as a pre-cut line or tear line) on the side piece 2. This dotted line design enables the user to easily tear the side piece 2 along a predetermined path without the need for additional tools or force.

[0041] The guiding strip 22 is fixed to the heat-sealing layer of the tear strip 21, which means it is directly attached to the edge or near the edge of the tear strip 21. This fixation method ensures a tight connection between the guiding strip 22 and the tear strip 21, enabling the tear strip 21 to drive the release paper 4 through the guiding strip 22 when the user tears the tear strip 21.

[0042] As one of the preferred embodiments of the present utility model, the guiding strip 22 is provided on the side of the release paper 4 away from the sanitary napkin 3. The release paper 4 is usually used in the manufacturing process of sanitary products such as sanitary napkins 3 as a temporary protective layer to prevent the adhesive from sticking to surfaces that do not need to be contacted during production and storage. When the sanitary napkin 3 is ready to be used, the release paper 4 is torn off to expose the adhesive layer for pasting on the underwear.

[0043] Setting the guiding strip 22 on the side of the release paper 4 away from the sanitary napkin 3 means that before using the sanitary napkin 3, the user can conveniently find and tear off the release paper 4 through the guiding strip 22. Since the guiding strip 22 does not directly contact the adhesive layer, it will not interfere with the adhesiveness of the adhesive layer. This ensures that after the release paper 4 is torn off from the sanitary napkin 3, it can be firmly pasted on the underwear to provide effective leakage prevention protection.

[0044] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A plastic-free paper sanitary napkin packaging paper bag, comprising a plastic-free paper bag. The plastic-free paper bag includes a bottom sheet (1) and two opposite side sheets (2). The two side sheets (2) are respectively arranged above the bottom sheet (1). The bottom sheet (1) and the two side sheets (2) are compounded and connected to form a storage cavity for accommodating sanitary napkins (3), characterized in that, The sanitary napkin (3) and the release paper (4) adhered to its back surface in the storage cavity are wound in a spiral shape. The side pieces (2) and the bottom sheet (1) are made of plastic-free paper materials respectively. The side pieces (2) and the bottom sheet (1) respectively include a heat-sealing layer, a paper base layer and a waterproof coating from the inside to the outside; An easy-tear strip (21) and a guiding strip (22) are provided on the side piece (2). The easy-tear strip (21) is a strip-shaped easy-tear dotted line structure that surrounds the storage cavity and is provided in the middle of the side piece (2). The easy-tear strip (21) has a starting end and an ending end. The starting end is provided on the outer side of the side piece (2) and is connected with an easy-tear piece (26). A guiding strip (22) is laminated on the inner wall of the ending end. One end of the guiding strip (22) away from the easy-tear strip (21) is connected to the edge of the release paper (4).

2. The plastic-free paper sanitary napkin packaging paper bag according to claim 1, characterized in that, The opposite ends of the bottom sheet (1) are respectively compounded and connected to the bottom edges of each side piece (2), and the other three edges of the two side pieces (2) are compounded and connected to each other.

3. The plastic-free paper sanitary napkin packaging paper bag according to claim 1, wherein, The compounded part of the edges of the two side pieces (2) is a sealed edge. The sealed edge includes a top sealed edge and side sealed edges. The top sealed edge is provided at the top end of the side piece (2), and the side sealed edges are provided at the left and right ends of the side piece (2). The starting end of the easy-tear strip (21) and the easy-tear piece (26) are provided on one of the side sealed edges.

4. The plastic-free paper sanitary napkin packaging paper bag according to claim 1, characterized in that, The side piece (2) is divided into an easy-tear area (23) and a non-easy-tear area (24) according to the setting position of the easy-tear strip (21). The guiding strip (22) is fixedly connected to the easy-tear area (23), and the guiding strip (22) contacts but is not fixed to the non-easy-tear area (24).

5. The plastic-free paper sanitary napkin packaging paper bag according to claim 1, wherein The edges of the two side pieces (2) are adhered together through their respective heat-sealing layers, and the side pieces (2) and the bottom sheet (1) are respectively adhered together through their respective heat-sealing layers.

6. The plastic-free paper sanitary napkin packaging paper bag according to claim 1, wherein, The easy-tear strip (21) is made by cutting a dotted line on the side piece (2), and the guiding strip (22) is fixed on the heat-sealing layer of the easy-tear strip (21).

7. The plastic-free paper sanitary napkin packaging paper bag according to claim 1, characterized in that, The guiding strip (22) is provided on the side of the release paper (4) away from the sanitary napkin (3).

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