Antibacterial sanitary towel

Abstract

The utility model relates to the field of sanitary napkin products, in particular to an antibacterial sanitary napkin, which solves the problem that the surface layer of the existing sanitary napkin is poor in antibacterial effect, and comprises a liquid-permeable surface layer, an absorber and a liquid-tight bottom layer which are stacked, and the sanitary napkin is defined to have a longitudinal length direction and a transverse width direction, flow guide parts which are symmetrically distributed along the longitudinal center are arranged between the liquid-permeable surface layer and the liquid-tight bottom layer, and each of the two flow guide parts comprises a first non-woven fabric layer close to the longitudinal symmetry center of the sanitary towel and a second non-woven fabric layer connected to the upper surface or the lower surface of the first non-woven fabric layer; the second non-woven fabric layer extends towards the peripheral side of the sanitary towel to the transverse edge of the absorber, the surface of the second non-woven fabric layer is provided with a flow guide pressing groove which extends in the transverse direction of the sanitary towel and is formed in a hot press mode, and a gap is formed between the two flow guide parts to form a main absorption groove which is hollowed out between the liquid-permeable face layer and the absorber. An antibacterial agent layer is sprayed on the surface of one side, close to the absorber, of the liquid-permeable surface layer.

Description

Technical Field

[0001] The utility model relates to the field of sanitary napkin products, in particular to an antibacterial sanitary napkin. Background Art

[0002] In order to avoid odor after absorbing liquid, existing hygiene products usually add antibacterial agents to the liquid-absorbing material of the core. This technology is shown in Chinese patent application CN 118076328 A, which is an absorbent article comprising a liquid-permeable front sheet arranged on the skin-opposing side, a back sheet arranged on the non-skin-opposing side, and an absorbent body between the front sheet and the back sheet, the absorbent body having an absorbent sheet containing fiber material as a constituent component, the absorbent article having a longitudinal direction corresponding to the front-to-back direction of the wearer and a transverse direction orthogonal to the longitudinal direction, in the absorbent article, the absorbent body has a stacked structure in at least the central part of the transverse direction of the absorbent body, the stacked structure comprising a front-side absorbent sheet located on the skin-opposing side, a back-side absorbent sheet located on the non-skin-opposing side, and a central absorbent part located between the front-side absorbent sheet and the back-side absorbent sheet, wherein the central absorbent part contains a water-soluble antibacterial agent, a porous material and a polyphenol compound.

[0003] However, under this product structure, although the body fluids are absorbed in large quantities by the central absorption part, the front side absorbent sheet, which is the first to come into contact with the body fluids, still inevitably produces odor, affecting the comfort of use. Utility Model Content

[0004] Therefore, the utility model provides an antibacterial sanitary napkin, which solves the problem that the surface layer of the existing sanitary napkin has poor antibacterial effect.

[0005] To achieve the above-mentioned purpose, the present invention is realized through the following technical solutions:

[0006] An antibacterial sanitary napkin comprises a liquid-permeable surface layer, an absorbent body and a liquid-impermeable bottom layer which are stacked together. The sanitary napkin is defined as having a longitudinal direction of length and a transverse direction of width. A flow guide portion symmetrically arranged along the longitudinal center is provided between the liquid-permeable surface layer and the liquid-impermeable bottom layer. Both of the flow guide portions comprise a first non-woven fabric layer close to the longitudinal symmetry center of the sanitary napkin, a second non-woven fabric layer connected to the upper surface or lower surface of the first non-woven fabric layer, the second non-woven fabric layer extending toward the circumferential side of the sanitary napkin to the transverse edge of the absorbent body, a flow guide groove hot-pressed and formed along the transverse extension of the sanitary napkin is provided on the surface of the second non-woven fabric layer, a gap is provided between the two flow guide portions to form a main absorption groove hollowed out between the liquid-permeable surface layer and the absorbent body, and an antibacterial agent layer is sprayed on the surface of the liquid-permeable surface layer on the side close to the absorbent body.

[0007] Preferably, the first non-woven fabric layer is a hydrophilic non-woven fabric, the second non-woven fabric layer is a water-repellent non-woven fabric, one lateral end of the second non-woven fabric layer is bonded to the bottom of the first non-woven fabric layer, and the other end is bonded to the liquid-permeable surface layer, and the second non-woven fabric layer is not bonded to the absorbent body.

[0008] Preferably, the first non-woven fabric layer and the second non-woven fabric layer are both hydrophilic non-woven fabrics, the upper surface of the first non-woven fabric layer is bonded to the liquid-permeable surface layer, and the lower surface is not bonded to the absorbent body, and the second non-woven fabric layer is bonded between the first non-woven fabric layer and the liquid-permeable surface layer.

[0009] Preferably, the transverse width of the main absorption groove is 5-30 mm.

[0010] Preferably, the antibacterial agent layer is formed by spraying benzalkonium chloride or quaternary ammonium salt.

[0011] By adopting the above technical solution, the beneficial effects of the utility model are:

[0012] This technical solution has designed a diversion structure that is different from traditional sanitary products. A main absorption groove is formed between two symmetrical diversion parts to absorb liquid in the first time, and the excess body fluids falling on the diversion parts are designed with different diversion parts according to different needs such as daily use and night use. The excess body fluids can be gradually diverted outward or refluxed to the center, ensuring the complete absorption of liquid. At the same time, unlike traditional sanitary napkin products, an antibacterial agent layer is added to the inside of the surface layer, and combined with the designed diversion part, the antibacterial effect of the surface layer on the side in contact with the human body is achieved under the condition of sufficient diversion, ensuring that there is no odor for a long time, and also avoiding the impact of the currently existing antibacterial agent components on human skin, so as to fully improve comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of an unfolded sanitary napkin according to Example 1 of the present utility model;

[0014] Figure 2 This is a schematic diagram of the stacked structure of a sanitary napkin according to Example 1 of the present invention (sectional view taken along the TT axis);

[0015] Figure 3 This is a schematic diagram of the stacking structure of the sanitary napkin in Example 2 of the present utility model.

[0016] Reference numerals: 1, liquid-permeable surface layer; 11, antimicrobial agent layer; 2, absorbent body; 3, liquid-impermeable bottom layer; 4, first non-woven fabric layer; 5, second non-woven fabric layer; 51, diversion pressure groove; 6, main absorption groove. DETAILED DESCRIPTION

[0017] The following will describe the implementation methods of the present invention in detail with reference to specific embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0018] Example 1

[0019] refer to Figure 1 and Figure 2 , an antibacterial sanitary napkin, comprising a liquid-permeable surface layer 1, an absorbent body 2 and a liquid-impermeable bottom layer 3 arranged in a stacked manner, the sanitary napkin being defined as having a longitudinal direction in the length direction and a transverse direction in the width direction, a guide portion symmetrically arranged along the longitudinal center is provided between the liquid-permeable surface layer 1 and the liquid-impermeable bottom layer 3, both of the guide portions comprising a first non-woven fabric layer 4 near the longitudinal symmetric center of the sanitary napkin, a second non-woven fabric layer 5 connected to the upper surface or lower surface of the first non-woven fabric layer 4, the second non-woven fabric layer 5 extending to the lateral edge of the absorbent body 2 toward the peripheral side of the sanitary napkin, a surface of the second non-woven fabric layer 5 being provided with a guide groove 51 hot-pressed and extending along the transverse direction of the sanitary napkin, a gap being formed between the two guide portions to form a main absorbent groove 6 hollowed out between the liquid-permeable surface layer 1 and the absorbent body 2, specifically, the main absorbent groove 6 needs to have a certain size, and its transverse width can be any value between 5-30 mm according to the product model and design purpose, so as to expose enough surface of the absorbent body 2 to ensure a sufficient absorption rate;

[0020] The liquid-permeable surface layer 1 is sprayed with an antimicrobial agent layer 11 on the side close to the absorbent body 2. The antimicrobial agent layer 11 is spray-formed with benzalkonium chloride or quaternary ammonium salt to achieve antimicrobial and deodorizing effects on the surface close to the absorbent body 2. This process involves pre-treating the liquid-permeable surface layer 1 before application, either by spraying or roller coating.

[0021] In this embodiment, the guide part is designed in the form of liquid absorption and reflux; that is, the first non-woven fabric layer 4 is a hydrophilic non-woven fabric, and the second non-woven fabric layer 5 is a water-repellent non-woven fabric. The first non-woven fabric layer 4 between the two guide parts is a hydrophilic non-woven fabric, which increases the width of the main absorption groove 6; on this basis, one lateral end of the second non-woven fabric layer 5 is bonded to the bottom of the first non-woven fabric layer 4, and the other end is bonded to the liquid-permeable surface layer 1. The second non-woven fabric layer 5 is not bonded to the absorbent body 2. When the sanitary napkin is used, the sanitary napkin will conform to the curve of the human body and form a boat shape with higher side ends, and the second non-woven fabric layer 5 will change accordingly, and accordingly achieve the function of guiding the body fluid overflowing to the lateral side of the sanitary napkin to reflux. In daily sanitary napkin products, since the human body will not lie on its side at night, this "boat shape" structure can be maintained, and this design is more suitable for daily sanitary napkins. At the same time, under this structure, the main body fluids are hit in the middle of the absorbent body 2, so the width of the antibacterial agent layer 11 can be reduced and it can be mainly applied to the position of the main absorption groove 6.

[0022] Example 2

[0023] refer to Figure 3 Compared to Example 1, this embodiment utilizes a diversion method that gradually diverts bodily fluids outward during absorption: namely, both the first non-woven fabric layer 4 and the second non-woven fabric layer 5 are hydrophilic non-woven fabrics. The upper surface of the first non-woven fabric layer 4 is bonded to the liquid-permeable surface layer 1, while the lower surface is not bonded to the absorbent body 2. The second non-woven fabric layer 5 is bonded between the first non-woven fabric layer 4 and the liquid-permeable surface layer 1. Similarly, the sanitary napkin forms a boat-shaped structure during use, allowing bodily fluids to gradually seep downward and be absorbed as they are guided by the diversion grooves 51. This results in a faster overall absorption rate, making it more suitable for the design orientation of nighttime sanitary napkins. However, unlike Example 1, the antibacterial layer 11 in this embodiment needs to be sufficiently wide to cover both sides of the second non-woven fabric layer 5 to ensure a comprehensive antibacterial effect.

[0024] This technical solution designs a diversion structure that is different from traditional sanitary products. A main absorption groove 6 is formed between two symmetrical diversion parts to absorb liquid in the first time, and the excess body fluid falling on the diversion part is designed with different diversion parts according to different needs such as daily use and night use. It can achieve gradual diversion of excess body fluid outward or reflux to the center, ensuring the complete absorption of liquid. At the same time, unlike traditional sanitary napkin products, an antibacterial agent layer 11 is added inside the surface layer to achieve an antibacterial effect on the surface layer on the side that contacts the human body, ensuring that there is no odor for a long time, and also avoiding the impact of currently existing antibacterial agent components on human skin, so as to fully improve comfort.

[0025] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes can be made to the form and details of the present invention without departing from the spirit and scope of the present invention as defined by the appended claims, and all of these changes are within the scope of protection of the present invention.

Claims

1. An antibacterial sanitary napkin comprising a liquid-permeable topsheet, an absorbent body, and a liquid-impermeable backsheet stacked in layers, wherein the sanitary napkin has a longitudinal length and a transverse width, and wherein: A guide portion is provided between the liquid-permeable surface layer and the liquid-impermeable bottom layer, which is arranged symmetrically along the longitudinal center. The two guide portions each include a first non-woven fabric layer close to the longitudinal symmetry center of the sanitary napkin, and a second non-woven fabric layer connected to the upper surface or lower surface of the first non-woven fabric layer. The second non-woven fabric layer extends toward the circumferential side of the sanitary napkin to the lateral edge of the absorbent body. The surface of the second non-woven fabric layer is provided with a guide groove hot-pressed and extending along the transverse direction of the sanitary napkin. A gap is provided between the two guide portions to form a main absorption groove hollowed out between the liquid-permeable surface layer and the absorbent body. An antibacterial agent layer is sprayed on the surface of the liquid-permeable surface layer on the side close to the absorbent body.

2. An antibacterial sanitary napkin according to claim 1, characterized in that: The first non-woven fabric layer is a hydrophilic non-woven fabric, the second non-woven fabric layer is a water-repellent non-woven fabric, one lateral end of the second non-woven fabric layer is bonded to the bottom of the first non-woven fabric layer, and the other end is bonded to the liquid-permeable surface layer, and the second non-woven fabric layer is not bonded to the absorbent body.

3. The antibacterial sanitary napkin according to claim 1, characterized in that: The first non-woven fabric layer and the second non-woven fabric layer are both hydrophilic non-woven fabrics. The upper surface of the first non-woven fabric layer is bonded to the liquid-permeable surface layer, and the lower surface is not bonded to the absorbent body. The second non-woven fabric layer is bonded between the first non-woven fabric layer and the liquid-permeable surface layer.

4. An antibacterial sanitary napkin according to claim 1, 2 or 3, characterized in that: The transverse width of the main absorption groove is 5-30 mm.

5. An antibacterial sanitary napkin according to claim 1, 2 or 3, characterized in that: The antibacterial agent layer is formed by spraying benzalkonium chloride or quaternary ammonium salt.

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