Sanitary towel with partition glue structure

By setting a partitioned glue structure on the base film of the sanitary napkin, the amount of glue applied is reduced, which solves the problem of high production cost of existing sanitary napkins and achieves the effect of reducing costs and improving comfort.

CN223350457UActive Publication Date: 2025-09-19ZHONGSHANJIAJIANSHENGHUO PROD CO LTD
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Patent Information

Application Number
CN202422327181.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-23
Publication Date
2025-09-19
Estimated Expiration
2034-09-23

AI Technical Summary

Technical Problem

The existing sanitary napkin production process uses a large amount of glue, resulting in high costs.

Method used

A partitioned glue structure is adopted, including setting a first and a second partitioned glue layer on the base film of the sanitary napkin, respectively providing glue areas on the upper and lower parts, and setting a blank area between the glue areas to reduce the amount of glue used.

Benefits of technology

By applying glue in different areas, the amount of glue used can be reduced, which reduces production costs while improving comfort and aesthetics.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sanitary napkin with a partition glue structure, which comprises a sanitary napkin body, a bottom film arranged on the sanitary napkin body, a first partition glue coating layer arranged on the bottom surface of the bottom film and a second partition glue coating layer arranged on the top surface of the bottom film, the first subarea gluing layer comprises a first gluing area arranged at the upper part of the bottom film in the length direction, a second gluing area arranged at the lower part of the bottom film in the length direction, and a first blank area arranged between the first gluing area and the second gluing area; the second blank area is arranged on one side of the first adhesive area, and the third blank area is arranged on one side of the second adhesive area. According to the partition adhesive structure of the sanitary towel, the adhesive consumption is reduced, and the production cost is reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of sanitary napkins, in particular to a sanitary napkin with a partitioned adhesive structure. Background Art

[0002] Sanitary napkins have become one of the essential daily necessities for contemporary women of childbearing age. Most of the existing sanitary napkins are fixed by glue. The bottom waterproof base film of the sanitary napkin is connected to other structures on the upper layer by gluing. The bottom surface of the bottom waterproof base film is provided with glue to provide the necessary adhesion so that the sanitary napkin can be firmly adhered to the underwear to prevent it from moving or falling off during use. Because glue is an important material in the production process of sanitary napkins, the amount of glue used in the sanitary napkin directly affects its cost. In the existing processing, the gluing method is full coverage one-roll gluing, which uses a relatively large amount of waste glue and is more expensive. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a sanitary napkin with a partitioned adhesive structure, which reduces the amount of adhesive used and reduces production costs.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A sanitary napkin with a partitioned adhesive structure includes a sanitary napkin body, a base film arranged on the sanitary napkin body, a first partitioned adhesive layer arranged on the bottom surface of the base film, and a second partitioned adhesive layer arranged on the top surface of the base film, the first partitioned adhesive layer including a first viscose area arranged on the upper part of the base film, a second viscose area arranged on the lower part of the base film, a first blank area arranged between the first viscose area and the second viscose area, a second blank area arranged on at least one side of the first viscose area, and a third blank area arranged on at least one side of the second viscose area.

[0006] According to some embodiments of the present invention, the width of the first blank area in the length direction of the base film is 30-40 mm.

[0007] According to some embodiments of the present invention, both the first adhesive region and the second adhesive region are provided with multiple groups of adhesive structures spaced apart along the width direction of the base film.

[0008] According to some embodiments of the present invention, both the first adhesive region and the second adhesive region are provided with multiple groups of adhesive structures spaced apart along the length direction of the base film.

[0009] According to some embodiments of the present invention, the adhesive portion is provided in 3-5 groups, and the interval between two adjacent groups is 5-8 mm.

[0010] According to some embodiments of the present invention, the first adhesive area and the second adhesive area are symmetrically arranged in the length direction of the base film, and the first blank area is arranged between the first adhesive area and the second adhesive area.

[0011] According to some embodiments of the present invention, the sanitary napkin body and the base film are further provided with side protrusions, and the first partitioned adhesive layer includes a protrusion adhesive area provided on the side protrusions.

[0012] According to some embodiments of the present invention, the protruding adhesive area is provided with a plurality of groups of adhesive structures spaced apart along the width direction of the base film.

[0013] According to some embodiments of the present invention, a plurality of the side protrusions are provided, and each of the side protrusions is provided with the protrusion adhesive area.

[0014] According to some embodiments of the present invention, the second partitioned adhesive layer is further provided above the base film, wherein the second partitioned adhesive layer includes adhesive portions spaced apart on the base film, and the adhesive portions are all provided along the length direction of the base film.

[0015] The utility model has at least the following beneficial effects:

[0016] In the zoned gluing setting, a first blank area is provided between the first viscose area and the second viscose area to reduce the amount of glue in the middle of the sanitary napkin. The setting of the second blank area and the third blank area can reduce the amount of glue on both sides; the zoned gluing makes it convenient to control the structure of the sanitary napkin and reduce the use of glue. The zoned gluing can individually control the glue usage of each gluing area during processing, reduce the amount of glue used, and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural cross-sectional view of an embodiment of the utility model;

[0018] Figure 2 This is a schematic structural diagram of the first partitioned adhesive layer of an embodiment of the present utility model;

[0019] Figure 3 This is a schematic structural diagram of the first partitioned adhesive layer of another embodiment of the present utility model;

[0020] Figure 4 This is a schematic structural diagram of the second partitioned adhesive layer of an embodiment of the present utility model;

[0021] Figure 5 This is a schematic structural diagram of the second partitioned adhesive layer in another embodiment of the present invention. DETAILED DESCRIPTION

[0022] The following description of the present invention, with reference to the accompanying drawings, is provided to facilitate a more comprehensive understanding of the various embodiments of the present invention as defined in the claims and their equivalents. The description includes various specific details to assist understanding, but these details should be construed as merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications may be made to the various embodiments described herein without departing from the scope and spirit of the present invention.

[0023] In the description of the present invention, descriptions of directions, such as up, down, front, back, left, right, etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as a limitation on the present invention.

[0024] It will be understood that when one element (e.g., a first element) is “connected” to another element (e.g., a second element), the element may be directly connected to the other element or an intervening element (e.g., a third element) may be present between the element and the other element.

[0025] The embodiment of the present utility model provides a sanitary napkin with a partitioned adhesive structure, such as Figure 1-5 As shown, it includes a sanitary napkin body 1, a base film 2 arranged on the sanitary napkin body 1, a first partitioned adhesive layer 3 arranged on the bottom surface of the base film 2, and a second partitioned adhesive layer 4 arranged on the top surface of the base film 2, the first partitioned adhesive layer 3 includes a first viscose area 301 arranged on the upper part of the base film 2, a second viscose area 302 arranged on the lower part of the base film 2, a first blank area 303 arranged between the first viscose area 301 and the second viscose area 302, a second blank area 304 arranged on at least one side of the first viscose area 301, and a third blank area 305 arranged on at least one side of the second viscose area 302.

[0026] The sanitary napkin body 1 of the present invention is generally provided with a surface layer, a water-absorbing material layer, a bottom film 2 and a release film, and a sticky glue is provided between the bottom film 2 and the release film, and the glue is adhered to external objects, and the bottom film 2 and the water-absorbing material layer are adhered by a glue coating layer; in the existing processing, the glue coating layer is a full-coverage roller-type glue coating, and a second partitioned glue coating layer 4 is now provided, and the glue is applied by the partitioned glue processing method, which greatly reduces the amount of glue used; the upper and lower parts of the bottom film 2 are respectively provided with a first glue area 301 and a second glue area 302, and the lengths and widths of the first glue area 301 and the second glue area 302 can be equal or unequal according to the actual sanitary napkin product requirements, and a first blank area 303 between the first glue area 301 and the second glue area 302 is provided with a glue part 308, and the first blank area 303 is on the sanitary napkin In the middle part of the main body 1, the sanitary napkin main body 1 will be folded during use, and the first blank area 303 has no glue setting, so that it fits the skin better when folded and is more comfortable. The setting of the first blank area 303 and the second blank area 304 can reduce the amount of glue on the sides of the first viscose area 301 and the second viscose area 302. The lengths of the first blank area 303 and the second blank area 304 can be equal to those of the first viscose area 301 and the second viscose area 302 respectively. The first blank area 303 and the second blank area 304 can be respectively set on one side or both sides of the first viscose area 301 and the second viscose area 302, so as to reduce the amount of glue on the sides of the first viscose area 301 and the second viscose area 302 respectively as needed. The design of the partitioned glue structure can reduce the amount of glue used, improve comfort and reduce production costs.

[0027] In some embodiments, as Figure 1-3 As shown, the width of the first blank area 303 in the length direction of the base film (2) is 30-40 mm, which is within the range of the most folded parts used by users and within the conventional processing range. It does not affect the adhesion effect with external objects, improves comfort and reduces production costs.

[0028] In some embodiments, as Figure 1-3 As shown, the first viscose area 301 and the second viscose area 302 are both provided with multiple groups of viscose parts 308 at intervals along the width direction of the base film 2. The intervals along the width direction of the base film 2 are adapted to the long sanitary napkin structure. The intervals can reduce the amount of glue used in the area without affecting the adhesion of the glue, thereby facilitating the reduction of production costs.

[0029] In some embodiments, the first viscose area 301 and the second viscose area 302 are both provided with multiple groups of viscose portions 308 at intervals along the length direction of the base film 2 (the embodiment with viscose portions in this direction is not drawn in the figure). The short sanitary napkin structure is adapted to the length direction of the base film 2 and is not easily displaced. The interval setting can reduce the amount of glue used in the area without affecting the adhesion, thereby reducing production costs.

[0030] In some embodiments, as Figure 1-3 As shown, the viscose portion 308 is provided with 3-5 groups, and the spacing distance between two adjacent groups is 5-8 mm. The viscose portion 308 can be set to different widths and different numbers of groups according to the actual size of the sanitary napkin or the usage scenario. Setting 3-5 groups is a better design. This number of groups is convenient for production and processing and has a wide adaptability. Without affecting the pasting effect, the spacing distance is set to a longer distance to reduce the amount of glue used, thereby reducing production costs.

[0031] In some embodiments, as Figure 2 As shown, the first adhesive area 301 and the second adhesive area 302 are symmetrically arranged in the length direction of the base film 2, and the first blank area 303 is arranged between the first adhesive area 301 and the second adhesive area 302. The symmetrical arrangement facilitates production and improves aesthetics.

[0032] In some embodiments, as Figure 1-3 As shown, the sanitary napkin body 1 and the base film 2 are also provided with side protrusions 306, and the first partitioned adhesive layer 3 also includes a protrusion adhesive area 307 provided on the side protrusion 306. The side protrusion 306 provided with the protrusion adhesive area 307 allows the sanitary napkin body 1 to be more firmly adhered to external objects, and the separate provision of the protrusion adhesive area 307 facilitates the reduction of glue usage.

[0033] Further, if Figure 3 As shown, the protruding adhesive area 307 is provided with multiple groups of adhesive portions 308 at intervals along the width direction of the base film 2. The protruding adhesive area 307 is provided with adhesive portions 308 at intervals to reduce the amount of glue used in the area. Since the protruding area is small, it is convenient to process it along the width direction.

[0034] In some embodiments, there are multiple side protrusions 306, and each side protrusion 306 is provided with a protrusion adhesive area 307. In practice, depending on the design of the sanitary napkin body 1, there will be multiple side protrusions 306, and each side protrusion 306 is provided with a protrusion adhesive area 307, which can make the side protrusions 306 more firmly adhere to external objects. The separate setting reduces the amount of glue used and reduces production costs.

[0035] In some embodiments, as Figure 4-5 As shown, the second partitioned glue coating layer 4 includes glue coating parts 401 that are spaced apart on the base film 2. The glue coating parts 401 are all arranged along the width direction of the base film 2. The partitioned glue coating is convenient for the narrow and long structure of the sanitary napkin body 1. The glue coating parts 401 are spaced apart in the width direction. The gap part can reduce the amount of glue used. It is also convenient to control the glue use of each glue coating part 401 separately during production and processing, thereby reducing the amount of glue used and reducing production costs.

[0036] The terms and words used in the above description and claims are not limited to their literal meanings, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, it should be clear to those skilled in the art that the above description of various embodiments of the present invention is provided for illustration only and is not intended to limit the present invention as defined in the appended claims and their equivalents.

Claims

1. A sanitary napkin with a partitioned adhesive structure, characterized in that: The invention comprises a sanitary napkin body (1), a base film (2) arranged on the sanitary napkin body (1), a first partitioned adhesive layer (3) arranged on the bottom surface of the base film (2), and a second partitioned adhesive layer (4) arranged on the top surface of the base film (2), wherein the first partitioned adhesive layer (3) comprises a first adhesive area (301) arranged on the upper part of the base film (2), a second adhesive area (302) arranged on the lower part of the base film (2), a first blank area (303) arranged between the first adhesive area (301) and the second adhesive area (302), a second blank area (304) arranged on at least one side of the first adhesive area (301), and a third blank area (305) arranged on at least one side of the second adhesive area (302).

2. The sanitary napkin with a partitioned adhesive structure according to claim 1, characterized in that: The width of the first blank area (303) in the length direction of the base film (2) is 30-40 mm.

3. The sanitary napkin with a partitioned adhesive structure according to claim 1, characterized in that: The first adhesive region (301) and the second adhesive region (302) are both provided with a plurality of groups of adhesive portions (308) spaced apart along the width direction of the base film (2).

4. The sanitary napkin with a partitioned adhesive structure according to claim 1, characterized in that: The first adhesive region (301) and the second adhesive region (302) are both provided with a plurality of groups of adhesive portions (308) spaced apart along the length direction of the base film (2).

5. A sanitary napkin with a partitioned adhesive structure according to any one of claims 3 or 4, characterized in that: The adhesive portion (308) is provided with 3-5 groups, and the interval between two adjacent groups is 5-8 mm.

6. A sanitary napkin with a partitioned adhesive structure according to any one of claims 1 to 4, characterized in that: The first adhesive area (301) and the second adhesive area (302) are symmetrically arranged in the length direction of the base film (2), and the first blank area (303) is arranged between the first adhesive area (301) and the second adhesive area (302).

7. The sanitary napkin with a partitioned adhesive structure according to claim 1, characterized in that: The sanitary napkin body (1) and the base film (2) are further provided with side protrusions (306), and the first partitioned adhesive layer (3) includes a protrusion adhesive area (307) provided on the side protrusions (306).

8. The sanitary napkin with a partitioned adhesive structure according to claim 7, characterized in that: The protruding adhesive area (307) is provided with a plurality of groups of adhesive portions (308) spaced apart along the width direction of the base film (2).

9. A sanitary napkin with a partitioned adhesive structure according to any one of claims 7-8, characterized in that: There are a plurality of side protrusions (306), and each of the side protrusions (306) is provided with the protrusion adhesive area (307).

10. The sanitary napkin with a partitioned adhesive structure according to claim 1, characterized in that: The second partitioned adhesive layer (4) comprises adhesive portions (401) arranged at intervals on the base film (2), and the adhesive portions (401) are all arranged along the length direction of the base film (2).