Magic hasp and paper diaper applying same

Abstract

The utility model discloses a magic hasp and a paper diaper applying the magic hasp, and belongs to the technical field of bonding accessories, and one side of a base material film layer protrudes to form a plurality of connecting pieces; the connecting piece comprises a rod body, one end of the rod body is vertically arranged on the base material film layer, and the other end of the rod body is connected with a mushroom head; the edge of the mushroom head protrudes out of the rod body, an inclined face is arranged at the bottom of the mushroom head, and the inclined face gradually inclines downwards from the middle of the mushroom head along the outer side. The top of the mushroom head is provided with an arc-shaped surface, the arc-shaped surface extends from the middle position of the mushroom head to two sides to the edge of the mushroom head, and the top of the mushroom head is provided with a plurality of grooves, so that the strength of the mushroom head can be increased, the occlusion is firmer, the mushroom head is mute, the adhesiveness is stronger, and the mushroom head is not easy to separate.

Description

Technical Field

[0001] The present application relates to the technical field of adhesive fittings, and particularly to a magic fastener and a diaper applying the magic fastener. Background Art

[0002] A magic fastener, also known as a nylon fastener or Velcro, is a very convenient and practical connecting device. It consists of two parts: one side is covered with small and strong hooks, and the other side is covered with small plush loops that can closely engage with these hooks. When the two parts are fitted together, they form a firm and non-loosening connection. This unique design enables the magic fastener to have a wide range of applications in various products. In the clothing field, the magic fastener is often used to adjust sizes, fix clothes, and serve as a decorative element, bringing a more convenient and comfortable experience to the wearer. Especially in the design of diapers, it has brought great convenience to people's lives.

[0003] When the adhesive fastener is used for baby diapers, higher and higher requirements are put forward for the softness of the adhesive fastener; at the same time, for the closing system composed of the adhesive fastener and the like, higher and higher requirements are also put forward for the performance of the adhesive fastener. This requires the adhesive fastener to be both soft and have good performance. The prior art, such as Chinese Patent Publication No. CN207870441U, discloses an elastic adhesive fastener, which includes a base film and a raised mushroom head. The raised mushroom head is arranged above the base film. The raised mushroom head includes a rod portion and a cap portion, and the cap portion is located at the top end of the rod portion. The mushroom head of the above patent adopts a flat form, and the sticking effect is poor. Summary of the Utility Model

[0004] The present utility model aims to provide a magic fastener and a diaper applying the same, which can increase the strength of the mushroom head, have stronger adhesiveness, and good softness.

[0005] To achieve the above object, the present utility model adopts the following technical solutions:

[0006] A magic fastener includes a base film layer. A plurality of connecting members protrude from one side of the base film layer. The connecting member includes a rod body. One end of the rod body stands on the base film layer, and the other end of the rod body is connected with a mushroom head. The edge of the mushroom head protrudes from the rod body, and an inclined surface is arranged at the bottom of the mushroom head. The inclined surface gradually slopes downward from the middle of the mushroom head along the outside. An arc surface is arranged at the top of the mushroom head. The arc surface extends from the middle position of the mushroom head to both sides to the edge of the mushroom head. A plurality of grooves are formed at the top of the mushroom head.

[0007] In a preferred technical solution of the present utility model, the connecting members are arranged in an array on the base film layer.

[0008] Preferably, in the technical solution of the present utility model, the thickness of the base material film layer is between 0.3 - 2.0 mm, and the thickness of the mushroom head is between 0.1 - 0.4 mm.

[0009] Preferably, in the technical solution of the present utility model, the mushroom head is set to be circular or oval.

[0010] Preferably, in the technical solution of the present utility model, an inwardly buckled portion is provided at the edge of the inclined surface.

[0011] Preferably, in the technical solution of the present utility model, the groove is strip-shaped and arranged side by side along one direction of the mushroom head.

[0012] Preferably, in the technical solution of the present utility model, the material of the base material film layer is an elastic plastic, and the material of the mushroom head is an engineering plastic.

[0013] Preferably, in the technical solution of the present utility model, the elastic material for producing the base material film layer is one of polyurethane elastomers, styrene elastomers, polyolefin elastomers, and polyester thermoplastic elastomers.

[0014] Preferably, in the technical solution of the present utility model, the engineering material for producing the mushroom head is one of polyamide - nylon, polycarbonate, polypropylene, polyethylene, poly terephthalate plastics, and acrylonitrile - butadiene - styrene copolymers.

[0015] The present utility model also discloses a disposable diaper, and the above-mentioned magic fastener is provided on one side or both sides of the waist sticker of the disposable diaper.

[0016] The beneficial effects of the present utility model are as follows:

[0017] (1) By providing a connecting member on the base material film layer, the connecting member includes a rod body and a mushroom head, and an arc surface is provided on the mushroom head, and a groove is formed on the arc surface. The design of the groove reduces the weight of the mushroom head, makes the magic fastener softer, and can also achieve a silent effect during the process of fitting and separating.

[0018] (2) By providing an inclined surface at the edge of the mushroom head, the inclined surface has a better effect of hooking fibers, making the adhesion more stable.

[0019] (3) An inwardly buckled portion is provided at the edge of the inclined surface, forming an arc-shaped hook inwardly, which can better adhere to the object to be adhered.

[0020] (4) By using elastic plastic and engineering plastic for the magic fastener, it has elasticity, is soft and comfortable, has relatively good strength, and provides excellent performance. Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the magic fastener provided in the specific embodiment of the present utility model.

[0022] Figure 2 It is Figure 1 an enlarged schematic diagram of A in

[0023] Figure 3 It is a schematic diagram of the overall structure of Embodiment 1 of the magic fastener provided in the specific embodiment of the present utility model.

[0024] Figure 4 It is a front view of the overall structure of Embodiment 1 of the magic fastener provided in the specific embodiment of the present utility model.

[0025] Figure 5 It is Figure 4 a schematic sectional view of AA in

[0026] Figure 6 It is Figure 5 an enlarged schematic diagram of B in

[0027] Figure 7 It is Figure 4 a schematic sectional view of BB in

[0028] Figure 8 It is Figure 7 an enlarged schematic diagram of C in

[0029] Figure 9 It is a schematic sectional view of BB of Embodiment 2 of the magic fastener provided in the specific embodiment of the present utility model.

[0030] Figure 10 It is Figure 9 an enlarged schematic diagram of D of

[0031] Figure 11 It is a schematic diagram of the overall structure of Embodiment 3 of the magic fastener provided in the specific embodiment of the present utility model;

[0032] Figure 12 It is a schematic diagram of the overall structure of Embodiment 4 of the magic fastener provided in the specific embodiment of the present utility model;

[0033] Figure 13 It is a schematic diagram of the overall structure of Embodiment 5 of the magic fastener provided in the specific embodiment of the present utility model;

[0034] Figure 14 It is a schematic diagram of the overall structure of Embodiment 6 of the magic fastener provided in the specific embodiment of the present utility model.

[0035] In the figure:

[0036] 1. Substrate film layer; 2. Connector; 201. Rod body; 202. Mushroom head; 2021. Inclined surface; 2022. Groove; 2023. Arc surface; 2024. Inner buckle; 3. Gap; 4. Waist sticker. Detailed implementation mode

[0037] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation modes.

[0038] As Figure 1-8 shown, the present application mainly adopts the following technical solutions, including a substrate film layer 1, and a plurality of connectors 2 are arranged at intervals on one side of the substrate film layer 1. The connector 2 includes a rod body 201. One end of the rod body 201 is erected on the substrate film layer 1, and the other end of the rod body 201 is provided with a mushroom head 202. The edge of the mushroom head 202 protrudes from the rod body 201, and the bottom of the mushroom head 202 is provided with an inward inclined surface 2021. The top of the mushroom head 202 is provided with an arc surface 2023. The arc surface 2023 extends from the middle position of the mushroom head 202 to both sides to the edge of the mushroom head 202. A plurality of grooves 2022 with the same direction are opened on the top of the mushroom head 202, which can avoid edge wear and optimize stress distribution, and can improve the performance of the magic fastener for repeated closing, thereby improving the bite force and durability of the magic fastener, and can also provide a silent effect. The following is a further detailed description of the present application.

[0039] Embodiment 1

[0040] The magic fastener provided by the embodiment of the present application includes a substrate film layer 1 and a plurality of connectors 2 arranged at intervals on one side of the substrate film layer 1. Among them, the connector 2 includes a rod body 201 and a mushroom head 202 arranged at the upper end of the rod body 201. The edge of the mushroom head 202 protrudes from the rod body 201, and the edge of the mushroom head 202 is provided with an inward inclined surface 2021 to enhance the stability of the mushroom head 202 and the connection strength between the mushroom head 202 and the rod body 201. The top of the mushroom head 202 is provided with an arc surface, which extends from the middle position of the mushroom head 202 to both sides to the edge of the mushroom head 202. A plurality of grooves 2022 with the same direction are opened on the top of the mushroom head 202. The groove (2022) is strip-shaped, and a plurality of grooves are arranged in parallel.

[0041] The base film layer 1 is made of an elastic plastic film layer, such as polyurethane elastomers (such as polyurethane TPU), styrene elastomers (such as the third-generation synthetic rubber SBS or thermoplastic elastomer SIS, etc.), polyolefin elastomers (such as thermoplastic elastomer POE), and polyester thermoplastic elastomers (such as TPEE). The thickness of the base film layer 1 is between 0.5 - 1 mm, ensuring that the base film layer 1 has sufficient strength and toughness to withstand a certain tensile force without being easily damaged. The base film layer 1 not only serves to support the connecting member 2 but also provides a certain amount of elasticity, making the connecting member 2 more stable. In addition, the surface of the base film layer 1 can be textured to enhance friction and improve the fitting degree.

[0042] The rod body 201 is vertically arranged on the base film layer 1. The rod body 201 can be made of one of polyamide - nylon (such as PA6, PA66), polycarbonate (PC), polypropylene (PP), polyethylene (PE), poly terephthalate plastics (such as polyethylene terephthalate (PET)), and acrylonitrile - butadiene - styrene copolymer (ABS) to ensure that it has good elasticity and toughness, guaranteeing both softness and the strength of the magic fastener. The diameter of the rod body 201 is between 0.2 - 0.4 mm, and its length can be adjusted according to different application scenarios. The rod body 201 and the base film layer 1 can be combined by welding or heat melting, etc., to ensure the stability of the connecting member 2.

[0043] The mushroom head 202 is arranged at the top of the rod body 201. The shape of the mushroom head 202 can be circular or oval. When the mushroom head 202 is circular, it increases the impact resistance and wear resistance. The thickness of the mushroom head 202 is between 0.2 - 0.4 mm. A moderate thickness can ensure the rigidity of the mushroom head 202 and avoid the connecting members 2 being too close to each other, which may affect the convenience of use. An inward inclined surface 2021 is provided at the edge of the mushroom head 202. The inclined surface 2021 is inclined from the inside to the outside. In this way, when biting the bonding part, the inclined surface 2021 can better allow the silk threads and other fluffy threads of the bonded items to be embedded and hooked, not only increasing the contact area but also improving the stability and reliability of fixation.

[0044] An arc surface 2023 is provided at the top of the mushroom head 202. The arc surface 2023 extends from the middle of the mushroom head 202 to the edge of the mushroom head 202, which is conducive to the sliding bite between the mushroom heads 202 and reduces jamming. Several grooves 2022 are also opened at the top of the mushroom head 202. The design of the grooves 2022 reduces the weight of the mushroom head 202 and makes the magic fastener softer.

[0045] The layout of the connecting member 2 on the base material film layer 1 can be an array distribution (such as rectangular or diamond arrangement), or an irregular distribution. The specific layout depends on the actual application requirements. If high-density connection is required, a dense array arrangement can be adopted to improve the fixing strength. A gap 3 for inserting an adhesive is provided between adjacent connecting members 2. This design of the gap 3 allows more insertion space for the mushroom head 202 during fixing, improving the assembly efficiency.

[0046] In this embodiment, through the special structural design at the top of the mushroom head 202, the biting stability is enhanced and the service life of the magic fastener is improved. At the same time, the optimization of the materials and structures of the base material film layer 1 and the connecting member 2 further improves the comprehensive performance of the product. This design not only meets the basic fixing requirements but also can adapt to more complex and changeable application environments, having high practical value and development potential, and will show better effects in practical applications.

[0047] Embodiment 2

[0048] As Figure 9-10 shown, the difference between this embodiment and Embodiment 1 is that an inwardly provided inner buckle 2024 is further provided outside the edge of the inclined surface 2021, which can be in a circular arc shape and has a certain elasticity. It can further increase the biting ability and the ability to hook the thread, making it more difficult to separate and more stable.

[0049] Embodiment 3

[0050] As Figure 11 shown, the difference between this embodiment and Embodiment 1 is that the specific distribution form of the connecting member 2 on the base material film layer 1 is different. In this embodiment, the connecting member 2 can be distributed in an array or irregularly. Specifically, the array distribution includes rectangular or diamond arrangement. To flexibly adapt to surfaces of different materials, an irregular distribution method can be selected to increase the fitting degree and adaptability. By optimizing the layout of the connecting member 2, the adaptability and fixing strength of the magic fastener in different application environments are improved, further enhancing the practicality of the product.

[0051] Embodiment 4

[0052] As Figure 12 shown, the difference between this embodiment and Embodiment 1 is that the specific distribution form of the connecting member 2 on the base material film layer 1 is different. In this embodiment, the connecting member 2 can be arranged on the base material film layer 1 in a form of irregular horizontal rows and regular vertical columns.

[0053] Embodiment 5

[0054] As Figure 13As shown in the figure, the difference between this embodiment and Embodiment 1 lies in the different specific distribution forms of the connecting member 2 on the base film layer 1. In this embodiment, the connecting member 2 can be arranged in an array on the base film layer 1 in different sizes.

[0055] Embodiment 6

[0056] As Figure 14 shown, the present utility model also discloses a disposable diaper, which is adhesively bonded by using any one of the magic tapes in Embodiments 1-3 on both sides or one side of the waistband of the disposable diaper. By using the magic tape provided by the present utility model, effects including enhancing the fastening stability, reducing the weight and noise can be achieved. In addition, the magic tape of the present utility model can also be used on different products such as female sanitary products (such as opening and closing pants, sanitary napkins), adult incontinence products, medical garments, medical facial protection products, absorbent articles, and infant clothing.

[0057] The present utility model is described by way of preferred embodiments. Those skilled in the art will appreciate that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the present utility model. The present utility model is not limited by the specific embodiments disclosed herein, and other embodiments falling within the scope of the claims of this application belong to the protection scope of the present utility model.

Claims

1. A magic fastener, characterized in that: It includes a base film layer (1), and a plurality of connecting members (2) protrude from one side of the base film layer (1); The connecting member (2) includes a rod body (201), one end of the rod body (201) stands on the base film layer (1), and the other end of the rod body (201) is connected with a mushroom head (202); The edge of the mushroom head (202) protrudes from the rod body (201), and an inclined surface (2021) is arranged at the bottom of the mushroom head (202), and the inclined surface (2021) gradually slopes downward from the middle of the mushroom head (202) along the outside; An arc surface (2023) is arranged at the top of the mushroom head (202), the arc surface (2023) extends from the middle position of the mushroom head (202) to both sides to the edge of the mushroom head (202), and a plurality of grooves (2022) are formed at the top of the mushroom head (202).

2. The magic fastener according to claim 1, characterized in that: The connecting members (2) are arranged in an array on the base film layer (1).

3. The magic fastener according to claim 1, characterized in that: The thickness of the base film layer (1) is between 0.3 - 2.0 mm, and the thickness of the mushroom head (202) is between 0.1 - 0.4 mm.

4. The magic fastener according to claim 1, characterized in that: The mushroom head (202) is set to be circular or oval.

5. The magic fastener according to claim 1, characterized in that: An inward buckle (2024) is arranged at the edge of the inclined surface (2021).

6. The magic fastener according to claim 1, characterized in that: The grooves (2022) are strip-shaped and are arranged side by side along one direction of the mushroom head (202).

7. The magic fastener according to claim 1, characterized in that: The material of the base film layer (1) is an elastic plastic, and the material of the mushroom head (202) is an engineering plastic.

8. The magic fastener according to claim 1, characterized in that: The material for producing the base film layer (1) is one of polyurethane elastomer, styrene elastomer, polyolefin elastomer, and polyester thermoplastic elastomer.

9. The magic fastener according to claim 1, characterized in that: The engineering material for producing the mushroom head (202) is one of polyamide - nylon, polycarbonate, polypropylene, polyethylene, poly terephthalic plastic, and acrylonitrile - butadiene - styrene copolymer.

10. A diaper, characterized in that: The magic fastener according to any one of claims 1 - 9 is arranged on one side or both sides of the waist sticker (4) position of the diaper.

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