Novel sanitary towel
By designing the structure of the liquid-permeable surface layer and absorbent core layer in the new sanitary napkin, combined with the design of hydrophobic non-woven fabrics and elastic parts, the problem of existing sanitary napkins being prone to side leakage during use is solved, achieving better anti-side leakage effect and comfort in use.
Patent Information
- Application Number
- CN202421106108.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-05-17
AI Technical Summary
During use, existing sanitary napkins are prone to deformation due to external forces, resulting in side leakage, reducing the comfort of use and anti-side leakage effect.
A new type of sanitary napkin is designed, adopting a structure of a liquid-permeable surface layer and an absorbent core layer. The liquid-permeable surface layer includes a hydrophilic nonwoven fabric covering the absorbent core layer and a hydrophobic nonwoven fabric covering the wings to form a longitudinally distributed channel, and an elastic member is provided in the channel to drive the sanitary napkin to bend and form a leak-proof partition during use.
The channel is raised by the longitudinal contraction of the elastic member, forming a leak-proof partition, improving the anti-lateral leakage effect, increasing the contact area with the skin, and improving the comfort of use.
Smart Images
Figure CN222815954U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of disposable sanitary products, in particular to a new type of sanitary napkin. Background Art
[0002] Sanitary napkins are used to absorb menstrual blood flowing out of the vagina during menstruation, reducing the risk of menstrual blood contaminating underwear and undergarments. The main materials of sanitary napkins are cotton, non-woven fabrics, pulp or polymers and polymer composite paper formed by composites of the above materials. However, the absorption layer inside existing sanitary napkins is mostly a flat structure, which cannot concentrate the menstrual blood in the middle of the sanitary napkin. At the same time, during use, it is often deformed due to external forces, and side leakage is prone to occur, which not only contaminates women's clothes, but also reduces the comfort of sanitary napkins during use.
[0003] Chinese patent application number: 202222918045.X discloses a three-dimensional suspended core anti-side leakage sanitary napkin, comprising a sanitary napkin body and side wings, wherein the sanitary napkin body comprises, from top to bottom, a surface layer, a permeable layer, an absorbent core, a dust-free wrapping layer, a breathable bottom film and a release paper, and adhesive strips are arranged at both ends of the bottom of the breathable bottom film, and auxiliary absorption layers are arranged on both sides of the left and right sides of the absorbent core, the surface layer comprises milk fiber and chitin fiber, a leak-proof edge strip is arranged on the top of the surface layer, and flow-blocking strips are arranged on both ends of the top of the surface layer, and a flow-guiding pressure groove is arranged on the inner surface of the surface layer. The absorption range and absorption amount of the sanitary napkin are improved through the action of the absorption core and the auxiliary absorption layer. The menstrual blood can be drained quickly through the action of the diversion pressure groove to avoid the accumulation of menstrual blood. Through the action of the blocking strip and the anti-leakage edge strip and with the cooperation of the side wings, the sanitary napkin has a three-layer anti-side leakage structure, the blocking strip is used for blocking, the anti-leakage edge strip is used for interception, and the side wings are used for expanding the area, thereby greatly improving the anti-side leakage ability of the sanitary napkin.
[0004] However, in actual use, the leak-proof edge strips are actually used for edge sealing, and their leak-proof effect is very small. The effects of diversion through the diversion groove and preventing side leakage through the flow-blocking strips are limited. For example, the absorbent core of night sanitary napkins is relatively thick, which reduces its bending effect. During actual wearing, the sanitary napkin body is almost a flat structure, and when sleeping on the side, it is very easy to cause side leakage of the sanitary napkin. Utility Model Content
[0005] Therefore, in view of the above problems, the present invention provides a new type of sanitary napkin, which mainly solves the problem of poor side leakage prevention effect of sanitary napkins in the prior art.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A new type of sanitary napkin, comprising a sanitary napkin body and wings, wherein the longitudinal direction is defined as extending along the length direction of the sanitary napkin body, and the transverse direction is defined as extending along the width direction of the sanitary napkin body. The wings are arranged on the transverse sides of the sanitary napkin body and are integrally connected to the sanitary napkin body. The sanitary napkin body comprises a liquid-permeable surface layer, an absorbent core layer and a liquid-impermeable bottom layer. The absorbent core layer is arranged on the upper surface of the liquid-impermeable bottom layer. The liquid-permeable surface layer is arranged on the upper surface of the absorbent core layer. The liquid-permeable surface layer comprises a hydrophilic non-woven fabric covering the absorbent core layer, a hydrophobic non-woven fabric connected to the transverse sides of the hydrophilic non-woven fabric and extending transversely outward to cover the wings, and an elastic member. A channel distributed along the longitudinal direction is provided on one side of the hydrophobic non-woven fabric close to the absorbent core layer. The elastic member is arranged in the channel and distributed along the longitudinal direction of the channel. A hot-pressed edge strip is provided at the periphery of the sanitary napkin body and the wings. The longitudinal ends of the channel and the longitudinal ends of the elastic member are fixedly connected by the hot-pressed edge strip.
[0008] Furthermore, the elastic member includes a sheet and at least two elastic rubber bands applied side by side on the sheet, and each of the elastic rubber bands is distributed along the longitudinal direction.
[0009] Furthermore, the elastic member is adhered to the transverse middle portion of the channel.
[0010] Furthermore, a first annular guide groove of an annular structure is pressed on the upper surface of the sanitary napkin body.
[0011] Furthermore, a second annular guide groove with an annular structure is pressed on the sanitary napkin body and located inside the first annular guide groove.
[0012] Furthermore, a guide layer is provided between the liquid-permeable surface layer and the absorbent core layer and in the second annular guide groove.
[0013] By adopting the above-mentioned technical scheme, the beneficial effect of the utility model is as follows: the new sanitary napkin forms a longitudinally distributed channel at the connection between the hydrophilic non-woven fabric covering the absorbent core layer and the hydrophobic non-woven fabric covering the wings through the liquid-permeable surface layer, and the elastic member is arranged in the channel. When in use, the sanitary napkin body and the channel can be driven to bend longitudinally through the longitudinal contraction of the elastic member, thereby making the channel stand up, and its upper edge can be attached to the user's skin to form a leak-proof partition, thereby improving the leak-proof effect, and the elastic member with longitudinal contraction function is arranged in the channel, so that a flexible buffer layer is formed between the elastic member and the skin, while increasing the contact area with the skin, thereby improving the comfort of use and further improving the leak-proof effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the top view of the structure of an embodiment of the utility model;
[0015] Figure 2 yes Figure 1 A partial enlarged view of the AA point in the middle. DETAILED DESCRIPTION
[0016] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.
[0017] The utility model embodiment is:
[0018] refer to Figure 1 and Figure 2 As shown, a new type of sanitary napkin includes a sanitary napkin body 1 and wings 2, wherein the longitudinal direction extending along the length direction of the sanitary napkin body 1 is defined as the longitudinal direction, and the lateral direction extending along the width direction of the sanitary napkin body 1 is defined as the lateral direction, the wings 2 are arranged on both lateral sides of the sanitary napkin body 1, and are integrally connected to the sanitary napkin body 1, the sanitary napkin body 1 includes a liquid-permeable surface layer 11, an absorbent core layer 12 and a liquid-impermeable bottom layer 13, the absorbent core layer 12 is arranged on the upper surface of the liquid-impermeable bottom layer 13, the liquid-permeable surface layer 11 is arranged on the upper surface of the absorbent core layer 12, and the liquid-permeable surface layer 11 includes a liquid-permeable layer covering the liquid-permeable surface layer 11. The hydrophilic non-woven fabric 111 on the absorbent core layer 12, the hydrophobic non-woven fabric 112 connected to the two lateral sides of the hydrophilic non-woven fabric 111 and extending laterally outward to cover the wing 2, and the elastic member 113, the hydrophobic non-woven fabric 112 has a longitudinally distributed channel 114 on one side close to the absorbent core layer 12, the elastic member 113 is arranged in the channel 114 and distributed along the longitudinal direction of the channel 114, the periphery of the sanitary napkin body 1 and the wing 2 is provided with a hot-pressed edge strip 3, and the longitudinal ends of the channel 114 and the longitudinal ends of the elastic member 113 are fixedly connected by the hot-pressed edge strip 3.
[0019] The novel sanitary napkin forms a longitudinally distributed channel 114 at the connection between the hydrophilic nonwoven fabric 111 covering the absorbent core layer 12 and the hydrophobic nonwoven fabric 112 covering the wings 2 through the liquid-permeable surface layer 11, and the elastic member 113 is arranged in the channel 114. When in use, the sanitary napkin body 1 and the channel 114 can be longitudinally bent by the longitudinal contraction of the elastic member 113, so that the channel 114 stands up, and its upper edge can be attached to the user's skin to form a leak-proof partition, thereby improving the leak-proof effect. The elastic member 113 with longitudinal contraction function is arranged in the channel 114, so that a flexible buffer layer is formed between the elastic member 113 and the skin, while increasing the contact area with the skin, thereby improving the comfort of use and further improving the leak-proof effect.
[0020] Specifically, the elastic member 113 includes a sheet 101 and at least two elastic rubber bands 102 applied side by side on the sheet 101. Preferably, the number of the elastic rubber bands 102 is 2, and each of the elastic rubber bands 102 is distributed along the longitudinal direction. The elastic member 113 is adhered to the transverse middle part of the channel 114, so that the elastic rubber band 102 can be clamped between the hydrophobic non-woven fabric 112 and the sheet 101, thereby increasing the contact area with the skin, thereby improving the comfort of use.
[0021] In addition, a first annular guide groove 4 with an annular structure is pressed on the upper surface of the sanitary napkin body 1, a second annular guide groove 5 with an annular structure is pressed on the sanitary napkin body 1 and located in the first annular guide groove 4, and a guide layer 14 is provided between the liquid-permeable surface layer 11 and the absorbent core layer 12 and located in the second annular guide groove 5, so that the guide effect of the sanitary napkin body 1 is improved, the infiltration speed is increased, the absorption efficiency is improved, and the side leakage prevention effect is further improved.
[0022] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0023] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0024] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.
Claims
1. A new type of sanitary napkin, characterized in that: The sanitary napkin comprises a sanitary napkin body and wings, wherein the longitudinal direction is defined as extending along the length direction of the sanitary napkin body, and the transverse direction is defined as extending along the width direction of the sanitary napkin body. The wings are arranged on the transverse sides of the sanitary napkin body and are integrally connected to the sanitary napkin body. The sanitary napkin body comprises a liquid-permeable surface layer, an absorbent core layer and a liquid-impermeable bottom layer. The absorbent core layer is arranged on the upper surface of the liquid-impermeable bottom layer. The liquid-permeable surface layer is arranged on the upper surface of the absorbent core layer. The liquid-permeable surface layer comprises a hydrophilic non-woven fabric covering the absorbent core layer, a hydrophobic non-woven fabric connected to the transverse sides of the hydrophilic non-woven fabric and extending transversely outward to cover the wings, and an elastic member. A channel distributed along the longitudinal direction is provided on the side of the hydrophobic non-woven fabric close to the absorbent core layer. The elastic member is arranged in the channel and distributed along the longitudinal direction of the channel. A hot-pressed edge strip is provided at the periphery of the sanitary napkin body and the wings. The longitudinal ends of the channel and the longitudinal ends of the elastic member are fixedly connected by the hot-pressed edge strip.
2. The new sanitary napkin according to claim 1, characterized in that: The elastic member comprises a sheet and at least two elastic rubber bands applied side by side on the sheet, and each of the elastic rubber bands is distributed along the longitudinal direction.
3. The new sanitary napkin according to claim 2, characterized in that: The elastic member is adhered to the transverse middle portion of the channel.
4. The new sanitary napkin according to any one of claims 1 to 3, characterized in that: A first annular guide groove of an annular structure is pressed on the upper surface of the sanitary napkin body.
5. The novel sanitary napkin according to claim 4, characterized in that: A second annular guide groove with an annular structure is pressed on the sanitary napkin body and located inside the first annular guide groove.
6. The novel sanitary napkin according to claim 5, characterized in that: A guide layer is provided between the liquid-permeable surface layer and the absorbent core layer and in the second annular guide groove.