Sanitary towel semi-finished product and sanitary towel
By creating cutting grooves in the sanitary napkin core and covering the through-hole with a leak-proof membrane, the problems of poor softness and poor flow-guiding effect of the sanitary napkin core are solved, resulting in a more comfortable user experience and a more convenient production process.
Patent Information
- Application Number
- CN202422647782.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Traditional sanitary napkins have a thick core, resulting in poor softness and poor absorbency. Furthermore, the absorbent resin particles are prone to leakage, affecting user comfort and production convenience.
Cutting grooves are made in the core of the sanitary napkin, and a leak-proof membrane is used to cover the opening to prevent resin particles from leaking out, thus forming a semi-finished sanitary napkin.
It improves the softness and absorbency of sanitary napkins, prevents leakage of absorbent resin particles, and enhances user comfort and production efficiency.
Smart Images
Figure CN223627707U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of daily necessities, and particularly relates to a sanitary towel semi-finished product and a sanitary towel. BACKGROUND
[0002] The traditional sanitary towel structure generally comprises a surface layer, a core and a bottom layer arranged in sequence from top to bottom, and the core plays a role of absorbing menstrual blood, and a water-absorbing resin macromolecule is usually added in the core. In order to ensure better absorption, the core often has a certain thickness. However, the thickness is relatively large, which causes poor softness. In addition, the thickness is relatively large, which may also cause poor flow guiding effect of the core, thereby causing slow seepage of menstrual blood.
[0003] In view of this, the utility model is provided. UTILITY MODEL CONTENT
[0004] The utility model aims to provide a sanitary towel semi-finished product and a sanitary towel, and aims to improve at least one problem mentioned in the background art.
[0005] The embodiment of the utility model can be implemented as follows:
[0006] In a first aspect, the utility model provides a sanitary towel semi-finished product, which comprises a core loaded with water-absorbing resin particles and a leakage-proof film.
[0007] A plurality of cutting grooves are formed on the core, the plurality of cutting grooves penetrate at least one of opposite surfaces of the core, and a plurality of penetration openings are formed.
[0008] The leakage-proof film is arranged on the surface of the core and is used for covering all the penetration openings.
[0009] In an optional embodiment, the plurality of cutting grooves penetrate the opposite surfaces of the core, and a plurality of penetration openings are formed on the opposite surfaces of the core.
[0010] In an optional embodiment, the leakage-proof film comprises a first film and a second film, the first film is adhered to one surface of the core, and the second film is adhered to the other surface of the core.
[0011] In an optional embodiment, the first film covers the entire surface of the core, and the second film covers the entire surface of the core.
[0012] Alternatively, the first film only covers the region with the penetration opening on one surface of the core, and the second film only covers the region with the penetration opening on the other surface of the core.
[0013] In an optional embodiment, the leakage-proof film is a continuous film structure, the leakage-proof film forms a containing cavity through folding or winding, the core is wrapped in the containing cavity by the leakage-proof film, and the leakage-proof film is bonded to the surface of the core.
[0014] In an optional embodiment, the leakage-proof film is a spun-bond nonwoven fabric, a hot-rolled nonwoven fabric, a hot-air nonwoven fabric, a water-jet nonwoven fabric, or a sanitary tissue paper.
[0015] In an optional embodiment, the core comprises, in sequence, a wood pulp water-jet fabric layer, a liquid absorption layer, and a dust-free paper layer.
[0016] In a second aspect, the utility model provides a sanitary towel, including bottom film, sanitary towel semi-finished product of any preceding embodiment and surface layer which are sequentially arranged.
[0017] The bottom film and the surface layer are connected to each other to sandwich the sanitary towel semi-finished product therebetween.
[0018] The sanitary towel semi-finished product and the sanitary towel provided by the utility model have the following beneficial effects:
[0019] The sanitary towel semi-finished product provided by the utility model has the characteristics of good softness, easy deformation, and good liquid guiding property, and the leakage of the water-absorbing resin particles in the core can be avoided by arranging the leakage-proof film on the surface of the core, so that the water absorption of the core is not reduced, and the subsequent production of the sanitary towel is not inconvenient.
[0020] The sanitary towel provided by the utility model has the characteristics of comfortable use and convenient production. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can be obtained without creative labor on the basis of these drawings.
[0022] Figure 1 The sanitary towel semi-finished product provided by the first embodiment of the utility model is shown in the plane view, and the cutting groove is actually invisible due to the coverage of the leakage-proof film, and the cutting groove is drawn in the drawing for the convenience of understanding;
[0023] Figure 2 The sanitary towel semi-finished product provided by the second embodiment of the utility model is shown in the plane view, and the cutting groove is actually invisible due to the coverage of the leakage-proof film, and the cutting groove is drawn in the drawing for the convenience of understanding; Figure 1
[0024] Figure 3 The sanitary towel semi-finished product provided by the second embodiment of the utility model is shown in the plane view, and the cutting groove is actually invisible due to the coverage of the leakage-proof film, and the cutting groove is drawn in the drawing for the convenience of understanding;
[0025] Figure 4 The sanitary towel semi-finished product provided by the second embodiment of the utility model is shown in the plane view, and the cutting groove is actually invisible due to the coverage of the leakage-proof film, and the cutting groove is drawn in the drawing for the convenience of understanding; Figure 3 the sectional view of the sanitary napkin semi-finished product when longitudinally cut;
[0026] Figure 5 the sectional view of the sanitary napkin semi-finished product when longitudinally cut according to the third embodiment of the present application;
[0027] Figure 6 the planar display view of the sanitary napkin according to the fourth embodiment of the present application;
[0028] Figure 7 for Figure 6 the sectional view of the sanitary napkin when longitudinally cut according to the fourth embodiment of the present application.
[0029] Icon: 100 - sanitary napkin semi-finished product; 110 - leakage-proof film; 111 - first film coating; 112 - second film coating; 120 - core; 121 - cutting groove; 122 - through hole; 123 - wood pulp spunlace layer; 124 - liquid absorption layer; 125 - dust-free paper layer;
[0030] 10 - sanitary napkin; 11 - bottom film; 12 - surface layer. DETAILED DESCRIPTION
[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0032] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.
[0033] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.
[0034] In the description of the utility model, it needs to be explained that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, it is only for the convenience of describing the utility model and simplifying the description, and it is not intended to indicate or imply that the device or element referred to must have a specific orientation, structure and operation, so it cannot be understood as a limitation on the utility model.
[0035] In addition, if the terms "first", "second" and the like are used only for differentiation, they cannot be understood as indicating or implying relative importance.
[0036] It should be noted that the features in the embodiments of the utility model can be combined with each other without conflict.
[0037] First embodiment
[0038] As shown in Figure 1 and Figure 2 , the present embodiment provides a sanitary napkin semi-finished product 100, which comprises a core 120 loaded with water-absorbing resin particles inside and a leakage-proof film 110;
[0039] A plurality of cutting grooves 121 are formed on the core 120, and the plurality of cutting grooves 121 penetrate at least one of the opposite surfaces of the core 120, forming a plurality of penetration openings 122;
[0040] The leakage-proof film 110 is arranged on the surface of the core 120 and is used to cover all the penetration openings 122.
[0041] The core 120 loaded with water-absorbing resin particles inside is a commonly used water-absorbing functional unit in the current sanitary napkin 10. The core 120 needs to have a certain thickness to have better water-absorbing property. However, a larger thickness may result in poor softness, and a larger thickness may also result in slow menstrual blood infiltration. To improve this problem, the present embodiment provides the core 120 with cutting grooves 121. The cutting grooves 121 can make the core 120 softer, and the cutting grooves 121 can also play a role in flow guiding. However, after the cutting grooves 121 are formed, there is a problem of leakage of water-absorbing resin particles, which reduces the water-absorbing capacity of the core 120 and is not convenient for subsequent processing and production.
[0042] In the present application, a sanitary napkin semi-finished product 100 is provided, in which a leakage-proof film 110 covering the penetration openings 122 is arranged on the surface of the core 120, which can improve the problem of leakage of water-absorbing resin particles in the core 120 after slotting and is convenient for subsequent processing and production. The sanitary napkin semi-finished product 100 can be directly used as part of the sanitary napkin 10 to enter the subsequent process for manufacturing the sanitary napkin 10; or the leakage-proof film 110 can be torn off before being used to manufacture the sanitary napkin 10 when entering the subsequent process.
[0043] Optionally, the water-absorbing resin particles are, for example, SAP resin.
[0044] Preferably, the plurality of cutting grooves 121 penetrate through opposite surfaces of the core 120, and a plurality of penetration openings 122 are formed on the opposite surfaces of the core 120. The cutting grooves 121 penetrating through the opposite surfaces of the core 120 can make the softness of the core 120 better.
[0045] It should be noted that in other embodiments of the present application, the cutting grooves 121 can also not penetrate through the opposite surfaces of the core 120, and can be set according to the use requirements. When the cutting grooves 121 do not penetrate through the opposite surfaces of the core 120, the depth thereof can be adjusted according to the different roles played by different parts, for example, the middle part bears more liquid, and can be set deeper, and other positions can be shallower than the middle part.
[0046] Further, the leakage-proof film 110 includes a first film 111 and a second film 112, the first film 111 is adhered to one surface of the core 120, and the second film 112 is adhered to the other surface of the core 120.
[0047] Further, the first film 111 and the second film 112 completely cover the opposite surfaces of the core 120, respectively.
[0048] Optionally, the leakage-proof film 110 is spun-bonded non-woven fabric, hot-rolled non-woven fabric, hot-air non-woven fabric, water-jet non-woven fabric or sanitary soft paper.
[0049] Optionally, the core 120 includes a wood pulp water-jet cloth layer 123, a liquid-absorbing layer 124 and a dust-free paper layer 125 arranged in sequence.
[0050] Second Embodiment
[0051] The present embodiment is basically the same as the first embodiment, and the unmentioned parts refer to the first embodiment.
[0052] As shown in Figs. 1 and 2, Figure 3 and Figure 4 In the present embodiment, the setting mode of the first film 111 and the second film 112 is different from that of the first embodiment. In the present embodiment, the first film 111 and the second film 112 do not completely cover the opposite surfaces of the core 120, but only cover the regions having the penetration openings 122.
[0053] Third Embodiment
[0054] The present embodiment is basically the same as the first embodiment, and the unmentioned parts refer to the first embodiment.
[0055] As shown in Figs. 1 and 2, Figure 5As shown, in the embodiment, the setting mode of the leakage-proof film 110 is different from that of the first embodiment, in the embodiment, the leakage-proof film 110 is a continuous film structure, the leakage-proof film 110 forms a containing cavity by folding or winding, and the core 120 is wrapped in the containing cavity by the leakage-proof film 110, and the leakage-proof film 110 is bonded with the surface of the core 120.
[0056] Fourth embodiment
[0057] As shown in the first embodiment, the sanitary napkin 10 provided by the embodiment comprises the sanitary napkin semi-finished product 100 provided by any of the foregoing embodiments. Figure 6 Figure 7 As shown in the first embodiment, the sanitary napkin 10 provided by the embodiment comprises the sanitary napkin semi-finished product 100 provided by any of the foregoing embodiments.
[0058] Specifically, the structure of the sanitary napkin 10 comprises the bottom film 11, the sanitary napkin semi-finished product 100 and the surface layer 12 arranged in sequence.
[0059] The material selection of the bottom film 11 and the material selection of the surface layer 12 are the same as those of the existing sanitary napkin 10.
[0060] In summary, the sanitary napkin semi-finished product 100 provided by the embodiment has the characteristics of good softness and easy deformation and good flow guiding, and the leakage-proof film 110 arranged on the surface of the core 120 can avoid the problem of the leakage of the water-absorbing resin particles in the core 120, the decrease of the water absorption of the core 120 and the inconvenience of the subsequent production of the sanitary napkin 10.
[0061] The sanitary napkin 10 provided by the embodiment has the characteristics of comfortable use and convenient production.
[0062] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.
Claims
1. A sanitary napkin intermediate product, characterized in that, The sanitary napkin comprises a core body internally loaded with water-absorbing resin particles and a leakage-proof film; The core body is provided with a plurality of cutting grooves, which penetrate at least one of the opposite surfaces of the core body to form a plurality of penetration openings; The leakage-proof film is arranged on the surface of the core body to cover all the penetration openings.
2. The sanitary napkin precursor of Claim 1 wherein, The plurality of cutting grooves penetrate the opposite surfaces of the core body, and a plurality of penetration openings are formed on the opposite surfaces of the core body.
3. The sanitary napkin precursor of Claim 2 wherein, The leakage-proof film comprises a first film and a second film, the first film is adhered to one surface of the core body, and the second film is adhered to the other surface of the core body.
4. The sanitary napkin precursor of Claim 3 wherein, The first film covers the whole surface of the core body, and the second film covers the whole surface of the core body. Alternatively, the first film only covers the area of one surface of the core body having the penetration openings, and the second film only covers the area of the other surface of the core body having the penetration openings.
5. The sanitary napkin precursor of Claim 2 wherein, The leakage-proof film is a continuous film structure, and the leakage-proof film forms a containing cavity by folding or winding, the core body is wrapped in the containing cavity by the leakage-proof film, and the leakage-proof film is adhered to the surface of the core body.
6. The sanitary napkin precursor of Claim 1 wherein, The leakage-proof film is a spun-bond nonwoven fabric, a hot-rolled nonwoven fabric, a hot-air nonwoven fabric, a water-jet nonwoven fabric or a sanitary soft paper.
7. The sanitary napkin precursor of Claim 1 wherein, The core body comprises a wood pulp water-jet fabric layer, a liquid-absorbing layer and a dust-free paper layer arranged in sequence.
8. A sanitary napkin characterized by The sanitary napkin comprises a bottom film, a sanitary napkin semi-product according to any one of claims 1 to 7 and a surface layer arranged in sequence; The bottom film and the surface layer are connected to each other to sandwich the sanitary napkin semi-product therebetween.