CN219184554U - Sanitary towel - Google Patents
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- CN219184554U CN219184554U CN202222560434.XU CN202222560434U CN219184554U CN 219184554 U CN219184554 U CN 219184554U CN 202222560434 U CN202222560434 U CN 202222560434U CN 219184554 U CN219184554 U CN 219184554U
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Abstract
The utility model provides a sanitary towel, which sequentially comprises a surface layer, a flow guide layer, an absorption layer and a bottom film from top to bottom; the absorption layer comprises a first absorption core, a second absorption core, a third absorption core and a tail leakage-proof layer; the second absorbent core and the tail leakage preventing layer are positioned between the first absorbent core and the third absorbent core, one end of the tail leakage preventing layer is connected with one end of the second absorbent core, the other end of the tail leakage preventing layer is far away from the second absorbent core, and the width of the tail leakage preventing layer is gradually increased along the direction far away from the second absorbent core; and the tail leakage-proof layer is provided with a choke structure. The sanitary towel has the advantages of high liquid suction speed and capability of effectively preventing liquid leakage.
Description
Technical Field
The utility model relates to the technical field of sanitary products, in particular to a sanitary towel.
Background
The sanitary towel is a substance with absorption capacity, and is mainly made of cotton, non-woven fabric, paper pulp or high-molecular polymer and high-molecular polymer composite paper formed by the composite of the materials, so that liquid can be reserved in the sanitary towel, and the design of the side edges is mainly used for preventing side leakage; at present, along with the development of the age, the requirements of consumers on the sanitary towel are continuously improved, but the structure of the conventional sanitary towel is generally simpler, and the problems of poor antibacterial and deodorizing effects, poor absorption performance, poor leakage-proof effects and the like still exist, so that in order to solve one or more of the problems, the sanitary towel which has good absorption performance and can effectively prevent liquid leakage needs to be studied.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide a sanitary towel which has high liquid absorption speed and can effectively prevent liquid leakage.
In order to achieve the above purpose, the present utility model is realized by the following technical scheme: a sanitary towel sequentially comprises a surface layer, a flow guide layer, an absorption layer and a bottom film from top to bottom; the absorption layer comprises a first absorption core, a second absorption core, a third absorption core and a tail leakage-proof layer; the second absorbent core and the tail leakage preventing layer are positioned between the first absorbent core and the third absorbent core, one end of the tail leakage preventing layer is connected with one end of the second absorbent core, and the other end of the tail leakage preventing layer is far away from the second absorbent core; and the tail leakage-proof layer is provided with a choke structure.
Preferably, the first absorbent core and the third absorbent core are both super absorbent resin composite paper; the grammage of the first absorbent core is not greater than the grammage of the third absorbent core.
Preferably, the second absorbent core is a super absorbent resin composite paper containing tea polyphenols.
Preferably, the area of the second absorbent core is smaller than the areas of the first absorbent core and the third absorbent core;
the second absorbent core has a width and a length that are both less than the length and the width of the first absorbent core and the second absorbent core.
Preferably, the length of the second absorbent core is 5-15 cm, and the width is 2-7 cm; the second absorbent core is preferably 1 to 5 layers.
Preferably, the tail leakage-proof layer is in a fan ring structure; the tail leakage prevention layer extends beyond the edge of the rear end of the third absorbent core.
More preferably, the tail leakage preventing layer is 3 to 5cm beyond the rear end edge of the third absorbent core.
More preferably, the central angle corresponding to the outer arc of the fan ring structure is larger than the included angle formed by connecting the two ends of the width side length of the second absorption core with the center corresponding to the outer arc of the fan ring.
Preferably, the flow blocking structure is a raised rectangle or arc; the number of the choke structures is 2-5.
Preferably, the height of the flow blocking structure is 2-5 mm, the length is 30-70 mm, and the width is 1-10 mm.
Preferably, the length of the choke structure is gradually increased along the length direction of the tail leakage preventing layer along the direction away from the tail leakage preventing layer.
Preferably, a plurality of choke structures are arranged in the length direction of the tail leakage-proof layer; the lengths of the plurality of choke structures gradually increase from the front end to the rear end of the tail leakage-proof layer.
Preferably, a plurality of choke structures are arranged in the length direction of the tail leakage-proof layer; the heights of the choke structures gradually increase from the front end to the rear end of the tail leakage-proof layer.
Preferably, the middle region of the facing layer is provided with embossments, and the embossments are arranged along the length direction of the facing layer.
Preferably, the embossment is at least one of rectangular, arcuate or wavy; the number of the embossments is 2-5, the width of the embossments is 1-3 mm, and the length of the embossments is 30-150 mm.
Preferably, the sanitary napkin further comprises a cover layer disposed over the tail leakage preventing layer, preferably, the cover layer is a spunbond nonwoven or a wet-strength paper.
Preferably, the two sides of the surface layer are provided with three-dimensional shields higher than the surface layer; the three-dimensional guard is 3-5 cm higher than the surface layer.
Compared with the prior art, the utility model has at least the following beneficial effects:
(1) The tail leakage-proof layer is arranged in the absorption layer, the width of the tail leakage-proof layer is gradually increased along the direction far away from the absorption layer, the arrangement of the tail leakage-proof layer can further increase the liquid absorption area of the absorption layer and prevent liquid from leaking backwards, and the tail leakage-proof layer is also provided with the transverse flow blocking structure which can prevent liquid from flowing backwards due to gravity when lying on back, so that the back leakage-proof effect of the tail leakage-proof layer is further enhanced; the structural position and the size of each absorption layer in the absorption layers are arranged, so that the liquid absorption performance of the sanitary towel can be improved, the reverse osmosis of liquid is prevented, and the utilization rate of the absorption layers can be improved;
(2) In some preferred embodiments of the present utility model, the flow blocking structure in the tail leakage preventing layer is in a convex state, and the length and the height of the flow blocking structure gradually increase along the direction away from the tail leakage preventing layer, so that the tail leakage preventing layer and the flow blocking structure can be mutually matched, the back leakage preventing effect of the tail leakage preventing layer can be further increased, and the liquid absorbing performance of the absorbing layer can be further enhanced;
(3) In some preferred embodiments of the present utility model, the middle area of the surface layer is provided with embossments, and the embossments can not only increase the infiltration speed of the liquid in the surface layer, but also effectively prevent the liquid from flowing to two sides, so as to avoid side leakage of the liquid; and the second absorption core in the absorption layer is the super absorbent resin composite paper containing tea polyphenol, and the absorption core can effectively inhibit the growth of bacteria in the absorption layer and reduce the peculiar smell generated in the use process.
Drawings
FIG. 1 is a schematic view of a sanitary napkin provided by the present utility model;
FIG. 2 is a schematic view of the structure of a facing layer of a sanitary napkin provided by the present utility model;
FIG. 3 is a schematic view of the structure of an absorbent layer of a sanitary napkin provided by the present utility model;
FIG. 4 is a schematic view of the structure of an absorbent layer of a sanitary napkin provided by the present utility model;
in the figure: 100: a surface layer; 200: a flow guiding layer; 300: an absorption layer; 400: a base film; 500: a three-dimensional protection ring; 101: embossing; 301: a first absorbent core; 302: a second absorbent core; 303: a third absorbent core; 304: a tail leakage-proof layer; 3041: and a choke structure.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model and the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.
In order to solve the problems that the sanitary towel in the prior art has poor liquid absorption performance and is easy to generate side leakage and back leakage when a woman lies on his back or on his side, the utility model provides a sanitary towel, as shown in fig. 1, which sequentially comprises a surface layer 100, a guide layer 200, an absorption layer 300 and a bottom film 400 from top to bottom; the surface layer is used as the first layer of the sanitary towel and is in direct contact with human skin, the material used can be spun-bonded non-woven fabric, hot air non-woven fabric or spun-laced non-woven fabric which are softer and better in liquid absorption performance, the layer number of the surface layer can be set into a single-layer or multi-layer structure according to actual needs, wherein the gram weight of the single-layer material is preferably 10-60 g/m 2 The method comprises the steps of carrying out a first treatment on the surface of the The diversion layer 200 is located between the surface layer 100 and the absorption layer 300, and mainly plays a role in conducting liquid and placing leakage of super absorbent resin and fiber in the absorption layerSpecifically, the material can be hot air non-woven fabric or spun-bonded non-woven fabric with good liquid guiding performance, and the gram weight of the material can be 10-60 g/m 2 The method comprises the steps of carrying out a first treatment on the surface of the The absorbent layer 300 is a main absorbent structure of the sanitary napkin, and mainly plays roles of absorbing liquid and storing liquid, and in order to further increase the comprehensive performance of the absorbent layer, the absorbent layer in the present utility model is a composite absorbent layer, and the absorbent layer 300 includes a first absorbent core 301, a second absorbent core 302, a third absorbent core 303 and a tail leakage preventing layer 304; the second absorbent core 302 and the tail leakage preventing layer 304 are located between the first absorbent core 301 and the third absorbent core 303, specifically, the tail leakage preventing layer is located in the rear half part between the first absorbent core and the third absorbent core in the longitudinal direction, one end of the tail leakage preventing layer 304 is connected with one end of the second absorbent core 302, and the other end of the tail leakage preventing layer 304 is away from the second absorbent core 302; the tail leakage-proof layer 304 is provided with a flow blocking structure 3041; the tail leakage-proof layer is arranged between the first absorption core and the third absorption core of the absorption layer, so that the tail leakage-proof layer can be fixed, the tail leakage-proof layer is prevented from being displaced, adverse effects are generated on the leakage-proof effect, meanwhile, the width of the tail leakage-proof layer is gradually increased along the direction away from the second absorption core, the design can be more attached to a human body, liquid leakage is better prevented, and further, a flow blocking structure arranged on the tail leakage-proof layer can prevent liquid from flowing towards the tail direction of the sanitary towel, so that the rear leakage-proof effect of the tail leakage-proof layer is further improved; the base film 400 is positioned below the third absorbent core 303 in the absorbent layer 300 and is composed of a PE film, and the gram weight of the base film can be 15-50 g/m 2 。
According to some preferred embodiments, the first absorbent core 301 and the third absorbent core 303 are made of wet-process super absorbent resin composite paper, and the wet-process super absorbent resin composite paper is used as the absorbent core of the absorbent layer, so that the liquid absorption performance and the liquid retention performance of the absorbent layer can be improved, the liquid can be prevented from being reversely oozed, and the gram weight of the first absorbent core 301 is not greater than the gram weight of the third absorbent core 303, so that the liquid can be more favorably oozed and diffused from the first absorbent core into the third absorbent core, and the absorption can be further improvedThe acquisition layer may have liquid absorption and reverse osmosis prevention properties, for example, the first absorbent core may have a gram weight of 50 to 100g/m 2 The third absorbent core may have a grammage of 110 to 200g/m 2 The method comprises the steps of carrying out a first treatment on the surface of the The second absorbent core 302 is a super absorbent resin composite paper containing tea polyphenols; the utility model has no special requirement on the content of tea polyphenol and super absorbent resin, the wet method of the super absorbent resin composite paper containing tea polyphenol prepared in the prior art is adopted, and the gram weight of the second absorbent core can be 50-200 g/m 2 。
According to some preferred embodiments, the area of the second absorbent core 302 is smaller than the area of the first absorbent core 301 and the third absorbent core 303; preferably, the width and length of the second absorbent core 302 are both smaller than the length and width of the first absorbent core 301 and the third absorbent core 303; in the utility model, the second absorbent core is positioned in the central area between the first absorbent core and the third absorbent core, and liquid is mainly concentrated in the middle area of the sanitary towel, and the second absorbent core is arranged in the central area between the first absorbent core and the third absorbent core, so that the liquid absorption capacity of the middle area of the sanitary towel can be increased, the liquid absorption performance of the sanitary towel can be improved, and the utilization rate of the absorption layer in the sanitary towel can be improved; according to some preferred embodiments, the second absorbent core 302 has a length of 5-15 cm (for example, may be 5cm, 8cm, 10cm, 12cm or 15 cm), and a width of 2-7 cm (for example, may be 2cm, 3cm, 4cm, 5cm, 6cm or 7 cm), so that not only the liquid absorption area of the absorbent layer can be further increased, but also the liquid absorption performance of the absorbent layer can be improved, and the utilization rate of the absorbent layer can be improved, and in addition, the tea polyphenol in the second absorbent core can effectively inhibit bacterial growth caused by wearing the sanitary towel for a long time, so that the generation of an odor during use can be avoided; the number of layers of the second absorbent core of the present utility model may be adjusted according to the actual needs, and the second absorbent core 302 is preferably 1 to 5 layers (for example, 1 layer, 2 layers, 3 layers, 4 layers, or 5 layers).
According to some preferred embodiments, the tail leakage preventing layer 304 has a fan ring structure, which not only can be more matched with the flowing state of the liquid, but also has better fitting property with the human body, so as to be beneficial to preventing the liquid from leaking back, and in order to further improve the back leakage preventing effect, in the present utility model, as shown in fig. 3, the tail leakage preventing layer 304 exceeds the edge of the rear end of the third absorbent core 303; preferably, the tail leakage prevention layer is 3-5 cm (e.g., may be 3cm, 4cm, or 5 cm) beyond the back end edge of the third absorbent core; as shown in fig. 4, preferably, the central angle β corresponding to the outer arc of the fan ring structure is greater than the included angle α between the two ends of the width side of the second absorbent core 303 and the center O corresponding to the outer arc of the fan ring, and when the flow rate of the liquid is greater, the tail leakage preventing layer can further absorb the liquid, so that the back leakage preventing effect of the tail leakage preventing layer can be further enhanced; in the present utility model, the front end and the rear end refer to the front end or the rear end of the sanitary napkin, respectively, when the sanitary napkin is used by a user.
The tail leakage-proof layer is a mixture of the super absorbent resin and the fluff pulp, and the fluff pulp is softer and has better diversion performance, so that the foreign body sensation of the sanitary towel can not be increased after the super absorbent resin and the fluff pulp are mixed to be used as the tail leakage-proof layer, the sanitary towel is softer and comfortable, and the fluff pulp and the super absorbent resin are matched with each other to have better liquid absorption performance and liquid retention performance, so that the absorption layer can be ensured to have better liquid absorption performance and leakage-proof performance; the mixing proportion of the super absorbent resin and the fluff pulp is preferably as follows; according to some preferred embodiments, the sanitary napkin further comprises a cover layer disposed over the tail leakage preventing layer, preferably, the cover layer is a spunbond nonwoven or a wet-strength paper, and in order to further prevent the superabsorbent resin and fluff pulp in the tail leakage preventing layer from being displaced or leaking out, the utility model preferably provides a spunbond nonwoven or a wet-strength paper having an area larger than that of the tail leakage preventing layer between the tail leakage preventing layer and the first absorbent core.
According to some preferred embodiments, the sanitary napkin further comprises a cover layer disposed over the tail leakage preventing layer, the cover layer being located between the first absorbent core and the tail leakage preventing layer, preferably the cover layer is a spunbond nonwoven or a wet-strength paper.
According to some preferred embodiments, the flow blocking structures 3041 are raised rectangles or arcs, and the flow blocking structures in the utility model are raised structures formed by fluff pulp, and the raised structures can increase the resistance of backward flowing of liquid, prevent the liquid from flowing to the tail and avoid the liquid from flowing out of the absorption layer, so that the backward leakage phenomenon occurs, and the number of the flow blocking structures 3041 is 2-5 (for example, 2, 3, 4 or 5; the height of the flow blocking structure 3041 is 2-5 mm (for example, 2mm, 3mm, 4mm or 5 mm), the length is 30-70 mm (for example, 30mm, 40mm, 50mm, 60mm or 70 mm), the width is 1-10 mm (for example, 1mm, 3mm, 5mm, 8mm or 10 mm), the flow blocking structure with the length, width and height can better intercept the liquid flowing towards the tail, the foreign body sensation of the sanitary towel is not increased, and the use is more comfortable; the spacing between adjacent two flow blocking structures 3041 in the present utility model is preferably 5-15 mm (e.g., may be 5mm, 8mm, 10mm, 12mm, or 15 mm).
According to some preferred embodiments, a plurality of flow blocking structures 3041 are provided in the length direction of the tail leakage preventing layer 304; the lengths of the plurality of choke structures 3041 gradually increase from the front end to the rear end of the tail leakage preventing layer 304; the heights of the plurality of choke structures 3041 gradually increase from the front end to the rear end of the tail leakage preventing layer 304; according to the utility model, through further controlling the length and the height of the flow blocking structure, the back leakage prevention performance of the sanitary towel is in an optimal state, but when the liquid flow is large, the flow blocking structure with the length and the width can block liquid layer by layer, so that the liquid can be absorbed in the tail leakage prevention layer, and the liquid is prevented from flowing out of the tail leakage prevention layer, so that the sanitary towel is ensured to have the excellent back leakage prevention performance.
In order to increase the liquid absorption speed and the downward conduction speed of the surface layer, the middle area of the surface layer 100 is provided with the embossments 101, the embossments 101 are arranged along the length direction of the surface layer 100, the embossments are positioned in the middle area of the surface layer, the embossments can guide liquid to permeate downwards, the downward permeation speed of the surface layer is improved, the liquid is prevented from being concentrated in the surface layer to adversely affect the dryness of the surface layer, and the embossments can prevent the liquid from flowing to two sides of the surface layer and avoid the side leakage phenomenon of the liquid; according to some preferred embodiments, the embossment 101 is at least one of rectangular, arcuate, or wavy; the embossments 101 are arranged along the length direction of the face layer 100; the embossments on the surface layer can generate a certain guiding effect on the liquid, so that the liquid is downwards guided and diffused at the middle position of the surface layer, the liquid is prevented from being diffused outside the surface layer to generate side leakage, the number of the embossments 101 is 2-5 (for example, 2, 3, 4 or 5), the width of the embossments 101 is 1-3 mm (for example, 1mm, 2mm or 3 mm), and the length of the embossments 101 is 30-150 mm (for example, 30mm, 50mm, 80mm, 100mm, 120mm or 150 mm); in the present utility model, the interval between adjacent embossments 101 is 5-10 mm (for example, may be 5mm, 7mm, 8mm or 10 mm), and too small number of embossments is not beneficial to better downward diversion of the liquid in the surface layer, and too large number of embossments is not beneficial to better improvement of the side leakage prevention performance of the surface layer.
According to some preferred embodiments, in order to further improve the side leakage preventing performance of the sanitary napkin, the two sides of the facing layer 100 of the present utility model are provided with a three-dimensional guard 500 higher than the facing layer; the three-dimensional guard can be water-repellent hot air non-woven fabric or water-repellent spun-bonded non-woven fabric, and the gram weight can be 10-40 g/m 2 The method comprises the steps of carrying out a first treatment on the surface of the The three-dimensional sheath 500 is 3-5 cm (for example, 3cm, 4cm or 5 cm) higher than the top sheet 100, and can effectively prevent liquid from leaking out from both sides of the sanitary napkin.
In fig. 1 to 3 of the present utility model, the structural layers are peeled off from each other for clarity of illustration of the positional relationship between the structural layers of the present utility model, and it should be understood that the present utility model is actually in close and/or partial contact with each other.
In order to more clearly illustrate the technical scheme and advantages of the present utility model, the present utility model will be further described below with reference to examples.
Example 1
Sanitary towel from top to bottomThe device comprises a surface layer (hot air non-woven fabric), a diversion layer (spun-bonded non-woven fabric), an absorption layer and a bottom film (PE film) in sequence; 3 arc-shaped embossings are arranged in the middle area of the surface layer, the embossings are arranged along the length direction of the surface layer, the width of the embossings is 2mm, and the length of the embossings is 100mm; the two sides of the surface layer are also provided with three-dimensional shields (water-repellent hot air non-woven fabrics) 3cm higher than the surface layer; the absorbent layer included a first absorbent core (super absorbent resin composite 80g/m 2 ) A second absorbent core (a layer of super absorbent resin composite paper containing tea polyphenol), a third absorbent core (120 g/m of super absorbent resin composite paper 2 ) And a tail leakage preventing layer (a mixture of fluff pulp and a super absorbent resin); the area of the second absorbent core is smaller than that of the first absorbent core and the second absorbent core, and the length of the second absorbent core is 10cm and the width of the second absorbent core is 5cm; the second absorption core and the tail leakage-proof layer are positioned between the first absorption core and the third absorption core, one end of the tail leakage-proof layer is connected with one end of the second absorption core, the tail leakage-proof layer is of a fan-ring structure, the tail leakage-proof layer exceeds 3cm of the edge of the rear end of the third absorption core, and a layer of spun-bonded non-woven fabric with the area larger than the area of the fan-ring is arranged above the fan-ring structure; the central angle corresponding to the outer arc of the fan ring structure is larger than the included angle between the two points of the width and the side length of the second absorption core and the center corresponding to the outer arc of the fan ring; the length direction of afterbody leak protection layer is equipped with 3 bellied arc choked flow structures, and choked flow structure's height is 2~5mm, and length is 30~70mm, and width is 3mm, and the length and the height of choked flow structure gradually increase gradually from the front end of afterbody leak protection layer to the rear end, and wherein, the length of choked flow structure is 30mm from the front end of afterbody leak protection layer to the rear end in proper order, 50mm and 70mm, and the height is 2mm, 3mm and 4mm in proper order.
Example 2
A sanitary towel, which comprises a surface layer (spun-bonded non-woven fabric), a diversion layer (hot air non-woven fabric), an absorption layer and a bottom film (PE film) from top to bottom in sequence; 2 rectangular embossings are arranged in the middle area of the surface layer, the embossings are arranged along the length direction of the surface layer, the width of each emboss is 3mm, and the length of each emboss is 150mm; the two sides of the surface layer are also provided with a three-dimensional guard (water-repellent hot air non-woven fabric) which is 5cm higher than the surface layer; the absorbent layer comprises a first absorbent core (super absorbent resin composite 50g/m 2 ) A second absorbent core (three layers of super absorbent resin composite paper containing tea polyphenol), a third absorbentCore (super absorbent resin composite paper 100 g/m) 2 ) And a tail leakage preventing layer (a mixture of fluff pulp and a super absorbent resin); the area of the second absorbent core is smaller than that of the first absorbent core and the second absorbent core, and the length of the second absorbent core is 8cm and the width of the second absorbent core is 5cm; the second absorption core and the tail leakage-proof layer are positioned between the first absorption core and the third absorption core, one end of the tail leakage-proof layer is connected with one end of the second absorption core, the tail leakage-proof layer is of a fan-ring structure, the tail leakage-proof layer exceeds the edge of the rear end of the third absorption core by 4cm, and a layer of spun-bonded non-woven fabric with the area larger than the area of the fan-ring is arranged above the fan-ring structure; the central angle corresponding to the outer arc of the fan ring structure is larger than the included angle formed by connecting the two points of the width side length of the third absorption core and the center corresponding to the outer arc of the fan ring; the length direction that is equipped with in the afterbody leak protection layer is equipped with 2 bellied arc choked flow structures, and choked flow structure's height is 2~5mm, and length is 30~70mm, and width is 5mm, and choked flow structure's length and height gradually increase gradually from the front end of afterbody leak protection layer to the rear end, and wherein, choked flow structure's length is 35mm and 45mm from the front end of afterbody leak protection layer to the rear end in proper order, and the height is 2mm and 4mm in proper order.
Example 3
A sanitary towel, which comprises a surface layer (hot air non-woven fabric), a diversion layer (hot air non-woven fabric), an absorption layer and a bottom film (PE film) from top to bottom in sequence; 5 wavy embossings are arranged in the middle area of the surface layer, the embossings are arranged along the length direction of the surface layer, the width of the embossings is 1mm, and the length of the embossings is 80mm; the two sides of the surface layer are also provided with a three-dimensional guard (water-repellent spun-bonded non-woven fabric) which is 4cm higher than the surface layer; the absorbent layer included a first absorbent core (super absorbent resin composite 60g/m 2 ) A second absorbent core (five-layer super absorbent resin composite paper containing tea polyphenol), a third absorbent core (150 g/m super absorbent resin composite paper 2 ) And a tail leakage preventing layer (a mixture of fluff pulp and a super absorbent resin); the area of the second absorbent core is smaller than that of the first absorbent core and the second absorbent core, the second absorbent core is 15cm long and 7cm wide; the second absorption core and the tail leakage-proof layer are positioned between the first absorption core and the third absorption core, one end of the tail leakage-proof layer is connected with one end of the second absorption core, the tail leakage-proof layer is of a fan ring structure, and the tail leakage-proof layer exceeds the rear end of the third absorption core5cm from the edge of (2); the central angle corresponding to the outer arc of the fan ring structure is larger than the included angle formed by connecting the two points of the width side length of the third absorption core and the center corresponding to the outer arc of the fan ring; the length direction of afterbody leak protection layer is equipped with 5 bellied arc choked flow structures, and choked flow structure's height is 2~5mm, and length is 30~70mm, and width is 2mm, and the length and the height of choked flow structure gradually increase gradually from the front end of afterbody leak protection layer to the rear end, and wherein, the length of choked flow structure is 30mm, 40mm, 50mm, 60mm and 70mm from the front end of afterbody leak protection layer to the rear end in proper order, and the height is 2mm, 3mm, 3.5mm and 4mm in proper order.
Example 4
Example 4 is substantially the same as example 1 except that: the grammage of the first absorbent core in the absorbent layer is the same as the grammage of the third absorbent core.
Example 5
Example 5 is substantially the same as example 1 except that: the grammage of the first absorbent core in the absorbent layer was opposite to that of the third absorbent core, i.e., the first absorbent core (super absorbent resin composite 120g/m 2 ) Third absorbent core (super absorbent resin composite 80 g/m) 2 )。
Example 6
Example 6 is substantially the same as example 1 except that: the tail leakage-proof layer is of a fan ring structure, and does not exceed the edge of the rear end of the third absorption core.
Example 7
Example 7 is basically the same as example 1, except that: along the length direction of the tail leakage-proof layer, the length and the height of each choke structure are equal.
Example 8
Example 8 is substantially the same as example 1 except that: the length of the choke structure gradually decreases along the direction away from the tail leakage-proof layer; the length of the choke structure is 70mm, 50mm and 30mm in sequence, and the height is 4mm, 3mm and 2mm in sequence.
Comparative example 1
Comparative example 1 is substantially the same as example 1 except that: the facing layer has no longitudinal embossed structure.
Comparative example 2
Comparative example 2 is substantially the same as example 1 except that: the absorption layer is only two layers of super absorbent resin composite paper with the same gram weight (the gram weight is 100g/m 2 )。
Comparative example 3
Comparative example 3 is substantially the same as example 1 except that: the absorption layer has no tail leakage-proof layer.
Comparative example 4
Comparative example 4 is substantially the same as example 1 except that: and the tail leakage-proof layer is provided with a flow-resistance structure.
Comparative example 5
Comparative example 5 is substantially the same as example 1 except that: the tail leakage-proof layer is arranged above the absorption layer, and the shape of the tail leakage-proof layer is rectangular super absorbent resin composite paper with the same area as the sector ring.
The sanitary napkins of examples 1 to 8 and comparative examples 1 to 5 were subjected to performance test, respectively, according to the present utility model, and the results of the performance test are shown in table 1.
The testing method comprises the following steps: taking animal blood for 2 times, each time of 5mL, and recording the time of finishing each time of absorption as the absorption speed in s at intervals of 10 minutes for 2 times; reverse osmosis is to put 10g filter paper on the sanitary absorbent article for 1min under the pressure of 1.2kg after 5mL animal blood is absorbed by the sanitary towel for 5min, and weigh the gram weight added by the filter paper in g;
attaching the absorbing article to the bottom of the U-shaped groove, longitudinally inclining to the left or right or backwards by 10 degrees, and carrying out liquid adding test; animal blood is taken for 2 times, 5mL each time, and the interval is 10 minutes 2 times, the side leakage animal blood after each liquid adding is received through a tray, the side leakage and the rear leakage are weighed and recorded, the unit is g, and the side leakage prevention effect and the rear leakage prevention effect are judged.
TABLE 1
| Examples | Absorption speed/s | Reverse osmosis amount/g | Side leakage/g | Post leakage/g |
| Example 1 | 5 | 0.63 | 0 | 0 |
| Example 2 | 6 | 0.42 | 0 | 0 |
| Example 3 | 6 | 0.21 | 0 | 0 |
| Example 4 | 5 | 0.80 | 0 | 0 |
| Example 5 | 8 | 0.54 | 0 | 0 |
| Example 6 | 6 | 0.67 | 0 | 0.07 |
| Example 7 | 6 | 0.65 | 0 | 0.05 |
| Example 8 | 6 | 0.65 | 0 | 0.12 |
| Comparative example 1 | 8 | 0.79 | 0.06 | 0 |
| Comparative example 2 | 5 | 0.93 | 0.02 | 0 |
| Comparative example 3 | 6 | 0.59 | 0 | 0.18 |
| Comparative example 4 | 6 | 0.61 | 0 | 0.06 |
| Comparative example 5 | 6 | 0.63 | 0 | 0.05 |
From the above examples, it can be seen that in examples 1 to 3 of the present utility model, the sanitary napkin has a high liquid absorption rate and a small amount of reverse osmosis, which means that the sanitary napkin of the present utility model has excellent liquid absorption performance and dryness, and the sanitary napkin of the present utility model hardly suffers from back leakage and side leakage, which means that the sanitary napkin of the present utility model has excellent leakage preventing performance, and in addition, can perform the functions of bacteriostasis and odor removal, and has a good feeling of use.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model. The utility model is not described in detail in a manner known to those skilled in the art.
Claims (15)
1. A sanitary napkin, characterized in that: the sanitary towel sequentially comprises a surface layer, a flow guide layer, an absorption layer and a bottom film from top to bottom; the absorption layer comprises a first absorption core, a second absorption core, a third absorption core and a tail leakage-proof layer; the second absorbent core and the tail leakage preventing layer are positioned between the first absorbent core and the third absorbent core, one end of the tail leakage preventing layer is connected with one end of the second absorbent core, the other end of the tail leakage preventing layer is far away from the second absorbent core, and the width of the tail leakage preventing layer is gradually increased along the direction far away from the second absorbent core; and the tail leakage-proof layer is provided with a choke structure.
2. A sanitary napkin as claimed in claim 1, wherein:
the first absorbent core and the third absorbent core are both super absorbent resin composite paper; the grammage of the first absorbent core is not greater than the grammage of the third absorbent core; and/or
The second absorbent core is super absorbent resin composite paper containing tea polyphenol.
3. A sanitary napkin as claimed in claim 1, wherein:
the second absorbent core has an area smaller than the areas of the first and third absorbent cores;
the second absorbent core has a width and a length that are both less than the length and the width of the first absorbent core and the third absorbent core.
4. A sanitary napkin as claimed in claim 1, wherein: the length of the second absorption core is 5-15 cm, and the width of the second absorption core is 2-7 cm; the second absorption core is 1-5 layers.
5. A sanitary napkin as claimed in claim 1, wherein:
the tail leakage-proof layer is in a fan ring structure; the tail leakage prevention layer extends beyond the edge of the rear end of the third absorbent core.
6. The sanitary napkin according to claim 5, wherein: the tail leakage preventing layer exceeds the rear end edge of the third absorbent core by 3-5 cm.
7. The sanitary napkin according to claim 5, wherein:
the central angle corresponding to the outer arc of the fan ring structure is larger than the included angle between the two ends of the width side length of the second absorption core and the circle center corresponding to the outer arc of the fan ring.
8. A sanitary napkin as claimed in claim 1, wherein:
the flow blocking structure is in a convex rectangle or arc shape; the number of the choke structures is 2-5.
9. A sanitary napkin as claimed in claim 1, wherein:
the height of the choke structure is 2-5 mm, the length is 30-70 mm, and the width is 1-10 mm.
10. A sanitary napkin as claimed in claim 1, wherein:
a plurality of choke structures are arranged on the length direction of the tail leakage-proof layer;
the lengths of the plurality of choke structures gradually increase from the front end to the rear end of the tail leakage-proof layer.
11. A sanitary napkin as claimed in claim 1, wherein:
a plurality of choke structures are arranged on the length direction of the tail leakage-proof layer;
the heights of the choke structures gradually increase from the front end to the rear end of the tail leakage-proof layer.
12. A sanitary napkin as claimed in claim 1, wherein:
the middle area of the surface layer is provided with embossments, and the embossments are arranged along the length direction of the surface layer;
the number of the embossments is 2-5, the width of the embossments is 1-3 mm, and the length of the embossments is 30-150 mm.
13. A sanitary napkin as claimed in claim 12, wherein:
the embossing is at least one of rectangle, arc or wave.
14. The sanitary napkin according to any one of claims 1 to 12, wherein:
the sanitary towel further comprises a covering layer arranged above the tail leakage-proof layer; and/or
The two sides of the surface layer are provided with three-dimensional shields higher than the surface layer; the three-dimensional guard ring is 3-5 cm higher than the surface layer.
15. A sanitary napkin as claimed in claim 14, wherein:
the covering layer is spun-bonded non-woven fabric or wet-strength paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222560434.XU CN219184554U (en) | 2022-09-27 | 2022-09-27 | Sanitary towel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222560434.XU CN219184554U (en) | 2022-09-27 | 2022-09-27 | Sanitary towel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219184554U true CN219184554U (en) | 2023-06-16 |
Family
ID=86718354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222560434.XU Active CN219184554U (en) | 2022-09-27 | 2022-09-27 | Sanitary towel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219184554U (en) |
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2022
- 2022-09-27 CN CN202222560434.XU patent/CN219184554U/en active Active
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