CN215652054U

CN215652054U - Sanitary napkin

Info

Publication number: CN215652054U
Application number: CN202121803321.7U
Authority: CN
Inventors: 潘绮灵; 陈培琼; 黄佩雯
Original assignee: Zhejiang Yusheng Personal Care Products Co ltd
Current assignee: Zhejiang Yusheng Personal Care Products Co ltd
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2022-01-28
Anticipated expiration: 2031-08-03

Abstract

The utility model relates to the technical field of absorption articles, in particular to a sanitary towel, which comprises a main body for absorbing menstrual fluid and leakage-proof separation edges arranged on the periphery of the main body, wherein the main body comprises a surface layer, a flow guide layer, a core body and a breathable basement membrane which are sequentially arranged from top to bottom, and a plurality of lines for fixing and dividing the core body into a plurality of absorption units are arranged on the core body. The utility model aims to overcome the defects of the prior art and provide a sanitary towel which is not easy to lump during use and has light, thin and comfortable feeling.

Description

Sanitary napkin

Technical Field

The utility model relates to the technical field of absorption articles, in particular to a sanitary towel.

Background

In recent years, the absorbent sanitary product industry in China is continuously rich in product types, perfect in functions and continuously improved in popularization degree, and becomes an important industry closely related to the life of people. According to the statistics of the Chinese papermaking association, the market scale (total market sales) of the absorbable sanitary product in 2017 in China reaches 1,138.9 billion yuan, and the market scale is increased by 9.8 percent on a same scale. Wherein, the proportion of the baby sanitary products is up to 48.2%, the proportion of the female sanitary products is 46.3%, and the proportion of the adult incontinence products is 5.5%. The sanitary towel belongs to one of the women's sanitary articles for use, and current sanitary towel is the monoblock core mostly, in the use, appears sticking together easily, the phenomenon of fault.

Chinese patent CN211705041U discloses a modular sanitary towel, through setting up two-layer superimposed first core and second core about, can tear after first layer core uses a certain time and get rid of, remain second layer core and continue to use, can alleviate to a certain extent that the menses is many, the phenomenon that sticks together that rises that the time length caused, but the double-deck core must lead to sanitary towel's thickness to increase, has sacrificed the travelling comfort.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a sanitary towel which is not easy to lump during use and has light, thin and comfortable feeling.

In order to solve the technical problems, the utility model adopts the technical scheme that:

the utility model provides a sanitary towel, including be used for absorbing the main part of menses the leak protection that the main part set up all around separates the limit, the main part includes from last down surface course, water conservancy diversion layer, core, the ventilative basement membrane that sets gradually be equipped with in the main part a plurality of be used for fixed and can with the core divides into the line of a plurality of absorption units.

The main body of the sanitary towel is used for absorbing menstrual fluid, and the leakage-proof separation edges are used for sealing the main body to prevent the sanitary towel from leaking from the periphery in the using process; the surface layer is directly contacted with the skin, and can be made of soft and comfortable materials so as to improve the comfort; preferably, the facing layer is a through-air non-woven material. The flow guide layer plays a role in flow guide, so that menses of the surface layer can rapidly enter the core body through the flow guide layer, the retention time of the menses on the surface layer is reduced, the surface layer is kept dry and comfortable, the sticky and greasy and wet percolated feeling is reduced, and the comfort is improved. The core body has a main absorption function, and adopts a high-absorptivity material to well absorb the menstrual fluid; the ventilative basement membrane plays waterproof effect on the one hand, keeps apart the menstrual fluid in the core, prevents to leak from the bottom, and on the other hand has the gas permeability, can promote the comfort and also can reduce the smell to can follow breeding of certain degree reduction bacterium. The lines arranged on the main body can divide a whole core body into a plurality of absorption units, each different absorption unit is used as an independent absorption unit to absorb menstrual fluid in each region, and meanwhile, a unified whole is formed among different absorption units to assist in absorption of adjacent absorption units, so that the absorption units play a role of assisting each other; the line is not only the division of carrying out the absorption unit, and more importantly fixes the core, and each part absorbent material has obtained abundant fixed, is difficult to the gathering and has stuck together, and moreover, carries out regional division with a monoblock core, and different absorption units can absorb the menses, but can only stop in respective region after absorbing, consequently, can avoid the absorbent material on next door to cause the phenomenon of sticking together toward the central gathering. Compared with the comparison document, the core body in the utility model can be made into a core body with smaller thickness, and a thinner material is adopted to improve the comfort, preferably, the core body is made of a high-absorption material without fluffy cloth, so that the volume is prevented from being excessively increased after absorption. In the manufacturing process, according to the characteristic that the absorption pressure born by the middle absorption unit is higher than the absorption pressure born by the edge absorption units, the middle absorption unit is set to be different from the thickness or the number of layers of the edge absorption units, or the middle absorption unit is made of a higher-quality absorption material, so that the absorption capacity of the middle absorption unit is greater than that of the edge absorption units, on one hand, the absorption capacity can be improved, on the other hand, the material can be reasonably utilized, and the cost is reduced.

Preferably, the plurality of grains are arranged in parallel or in a crossed manner.

Preferably, the cross section of the absorption unit is one of square, triangle and fan.

Preferably, the cross-sectional area of the absorption unit is 1mm²～4mm²。

Preferably, be equipped with a plurality of guiding gutters on the surface course, the guiding gutter follows the surface course downwardly extending reaches the core, just the guiding gutter crosses two absorption unit settings at least.

Preferably, the guide grooves comprise a first guide groove arranged along the long side direction of the surface layer and a second guide groove arranged along the short side direction of the surface layer.

Preferably, the widths of the first diversion trench and the second diversion trench are both 3 mm-5 mm.

Preferably, the widths of both ends of the first diversion trench are greater than the width of the middle of the first diversion trench, and the widths of both ends of the second diversion trench are greater than the width of the middle of the second diversion trench.

Preferably, the core body comprises a surface layer, a polymer layer and a bottom layer which are arranged in sequence from the position close to the flow guide layer to the position far away from the flow guide layer.

Preferably, the lines are formed by sequentially arranging a plurality of hot-pressing welding spots, the welding spots form grooves on the surface layer, and the width of each groove is at least 3 mm.

Compared with the prior art, the utility model has the beneficial effects that:

(1) the lines arranged on the core body divide a whole core body into a plurality of absorption units, each different absorption unit is used as an independent absorption unit to absorb menstrual fluid in each region, and meanwhile, a unified whole is formed among different absorption units to assist in absorption of adjacent absorption units, so that the absorption units play a role of assisting each other; and the line still fixes the core, and each part absorbent material has obtained abundant fixed, is difficult to the gathering rise to stick together, and simultaneously, different absorption unit can absorb the menses liquid, but can only stop in respective region after absorbing, can avoid the absorbent material on next door to cause the phenomenon of sticking together toward central gathering.

(2) The lines are formed by arranging a plurality of hot-pressing welding spots in sequence, the grooves formed at the welding spots can further play a role in guiding and diffusing, permeation and absorption of menses liquid are accelerated, and the welding spots are sunken, so that discomfort caused when the welding spots are contacted with a user is avoided.

(3) The arrangement of the diversion trench can further improve the performance of quick absorption and improve the comfort; at the same time, the utilization rate of the absorbing material can be improved.

Drawings

FIG. 1 is a schematic view of a sanitary napkin according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

fig. 3 is a schematic structural view of the core.

The graphic symbols are illustrated as follows:

1. a main body; 11. a surface layer; 12. a flow guiding layer; 13. a core body; 131. lines; 132. an absorption unit; 133. A first diversion trench; 134. a second guiding gutter; 135. a surface layer; 136. a polymer layer; 137. a bottom layer; 14. A breathable basement membrane; 2. and (5) leakage-proof separation edges.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.

Examples

Referring to fig. 1 to 3, an embodiment of a sanitary napkin according to the present invention comprises a main body 1 for absorbing menstrual fluid, and leakproof isolation boundaries 2 arranged around the main body 1, wherein the main body 1 comprises a surface layer 11, a flow guide layer 12, a core 13, and a breathable bottom film 14 which are arranged in sequence from top to bottom, and a plurality of lines 131 for fixing and dividing the core 13 into a plurality of absorption units 132 are arranged on the main body 1.

The leakproof isolation boundaries are formed by compounding a waterproof film or a hydrophobic film and a net surface, and the waterproof film refers to a film made of waterproof materials. For example, a cast PE film; the hydrophobic film is a waterproof fabric obtained by treating a nonwoven fabric, a general fabric or other breathable material with a hydrophobic resin.

Preferably, the facing layer 11, the fluid-directing layer 12, the core 13, and the breathable base film 14 are bonded together by the adhesive effect of the hot melt adhesive to form a disposable sanitary napkin with absorbent properties.

As an embodiment of the present invention, the plurality of textures 131 are arranged in parallel or in a crossed manner.

Preferably, the plurality of grains 131 are arranged in a crossed manner, and the crossed grains 131 have a better fixing effect on the core body 13, so that the core body 13 is fixed from multiple angles, and the core body 13 is prevented from lumping or deviating after absorbing menstrual fluid; of course, different textures 131 may be arranged in parallel, and the core 13 is simply divided into regions to prevent the core 13 from moving across the regions after absorbing menstrual fluid.

As one embodiment of the present invention, the cross-section of the absorption unit 132 is one of a square, a triangle, and a fan.

Preferably, the cross-sectional area of the absorption unit 132 is triangular, and the triangle has good stability, is not easily deformed, and is not easily moved after the absorption unit 132 absorbs menstrual fluid; of course, the cross-sectional area of the absorption unit 132 may be square or fan-shaped or other shapes known to those skilled in the art.

As an embodiment of the present invention, the cross-sectional area of the absorption unit 132 is 1mm²～4mm²。

When the absorption unit 132 has a certain cross-sectional area, the absorption unit can not only meet the rapid absorption function of the region, but also avoid the stable structure, and is not easy to lump after absorption; if the cross-sectional area of the absorption unit 132 is too small, the absorption resistance is large, the absorption capacity is poor, and the menstrual fluid is not easily and rapidly absorbed; if the cross-sectional area of the absorption unit 132 is too large, the structure is not stable enough, and the absorption unit is easy to gather together; therefore, the cross-sectional area of the absorption unit 132 is 1mm 2-4 mm2, which has good performance of fast absorption and preventing lump. Of course, the cross-sectional area of the absorbent element 132 may have other values within the knowledge of those skilled in the art.

As an embodiment of the present invention, a plurality of channels are provided on the facing layer 11, the channels extending from the facing layer 11 down to the core 13) and the channels are provided across at least two of the absorption units 132.

The diversion trench plays a role in diversion, and can quickly divert the menstrual fluid in the surface layer 11 into the core body 13, so that the quick absorption capacity is further improved; the arrangement of the diversion trench at least across two absorption units 132 can make the menstrual fluid quickly flow to different absorption units 132, rather than diffuse through the absorption capacity of the absorption units 132, so as to improve the effect of quick absorption.

As one embodiment of the present invention, the guide grooves include first guide grooves 133 disposed in the long side direction of the face layer 11 and second guide grooves 134 disposed in the short side direction of the face layer 11.

The first guiding grooves 133 arranged along the long side direction of the surface layer 11 can guide and diffuse the menstrual fluid between different absorption units 132 in the long side direction rapidly, so that different absorption units 132 can absorb the menstrual fluid rapidly. The second guiding gutter 134 along the short side direction of the surface layer 11 can guide and diffuse the menstrual fluid rapidly between different absorption units 132 in the short side direction, so that the absorption units 132 at different positions can absorb the menstrual fluid rapidly, the absorption units 132 at the edge can share the absorption pressure of the middle absorption unit 132 to a certain extent, all the absorption units 132 can participate in absorption, and the absorption speed can be improved to a certain extent.

In one embodiment of the present invention, the widths of the first guide grooves 133 and the second guide grooves 134 are both 3mm to 5 mm.

The guide groove is too narrow, so that the guide effect is not obvious, and the guide groove is too deep, so that menstrual fluid can directly seep downwards and cannot play a guide effect; comprehensively, the widths of the first guide grooves 133 and the second guide grooves 134 are set to be 3 mm-5 mm, so that the menstrual fluid can be effectively diffused, the menstrual fluid is absorbed by the absorption units 132 at the two ends, and the utilization rate of the absorption material is improved.

As an embodiment of the present invention, the width of both ends of the first guide groove 133 is greater than the width of the middle portion of the first guide groove 133, and the width of both ends of the second guide groove 134 is greater than the width of the middle portion of the second guide groove 134.

In consideration of the using position of the sanitary towel and the particularity of the shape of the sanitary towel, the menstrual fluid needs to be guided and diffused from the middle part of the sanitary towel to the end part, so that the utilization rate of the absorbing material of the core body 13 can be improved, and the absorbing speed can be improved. The width of the middle part of the first diversion trench 133 is smaller than the width of the two ends of the first diversion trench 133, so that diversion resistance at the two ends of the first diversion trench 133 is smaller, and the menses is easier to divert and diffuse from the middle part of the first diversion trench, which is beneficial to the transverse diffusion of the menses; similarly, the width of the middle of the second guiding groove 134 is smaller than the width of the two ends of the second guiding groove 134, which is beneficial to guiding and diffusing the menstrual fluid in the longitudinal direction.

In one embodiment of the present invention, the core body 13 includes a surface layer 135, a polymer layer 136, and a base layer 137, which are provided in this order from the vicinity of the current guiding layer 12 to the distance from the current guiding layer 12.

The surface layer 135 primarily absorbs menstrual fluid, and then guides the menstrual fluid to the macromolecule layer 136, the macromolecule layer 136 absorbs the menstrual fluid by using the high absorption performance of the macromolecule layer, so that most of the menstrual fluid is absorbed in the macromolecule layer 136, the volume of the macromolecule layer 136 slightly expands after absorbing the menstrual fluid, but the volume of the macromolecule layer 136 after absorbing the menstrual fluid is not expanded to be larger like fluffy cloth, therefore, the menstrual fluid is absorbed by using the macromolecule layer 136, the sanitary towel has the light and thin comfortable performance, and meanwhile, the volume expansion of the macromolecule layer 136 after absorbing is not obvious, so that the sanitary towel is relatively difficult to lump. The bottom layer 137 is used for absorbing menses again to ensure that all menses can be well absorbed, and the bottom layer 137 plays a role in assisting absorption of the polymer layer 136 and reabsorbs menses which is not fully absorbed by the polymer layer 136 to prevent bottom leakage.

As an embodiment of the present invention, the texture 131 is formed by sequentially arranging a plurality of thermocompression bonding points, and the bonding points form a groove on the surface layer 11, and the width of the groove is at least 3 mm.

The line is arranged in proper order by a plurality of hot pressing solder joints and is constituteed, sets up the solder joint from surface course 11 in the main part through the hot pressing mode, makes the solder joint push down to core 13, can make the line realize the good fixed action to each absorption unit 132 on the core 13, prevents that absorption unit 132 from playing to stick together or the off tracking after absorbing the menstrual fluid. Solder joint department caves in surface course 11 and sets up, even solder joint department forms the recess, can avoid the solder joint to cause the foreign matter to the user and feel, makes line 131 avoid direct and skin contact, adds the travelling comfort. The width of recess is 3mm at least, can ensure on the one hand the reinforcement of line 131 to core 13, makes and has more firm characteristic between each absorption unit 132 of core 13, is difficult for moving after absorbing, and on the other hand, if line 131 and skin contact, also can avoid line 131 to cause the discomfort to the skin, the recess is wider, and the pressure in the unit area will be less. The grooves can further play a role in guiding and diffusing and accelerate the permeation and absorption of menstrual fluid. Within the scope of the knowledge of those skilled in the art, the texture may be provided in other ways, such as by sewing with a non-woven fabric.

In one embodiment of the present invention, a stamp is further disposed between the surface layer 11 and the leakproof isolation margin 2.

The printing can increase the stability of the combination of the surface layer 11 and the leakproof isolation edge 2 on the one hand, and can also increase the appearance on the other hand.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a sanitary towel, including be used for absorbing main part (1) of menses liquid main part (1) is leak protection that sets up all around separates limit (2), a serial communication port, main part (1) includes from last surface course (11), water conservancy diversion layer (12), core (13), ventilative basement membrane (14) that down set gradually be equipped with a plurality of lines (131) that are used for fixedly and can with core (13) divide into a plurality of absorption units (132).

2. A sanitary napkin according to claim 1, wherein the plurality of textures (131) are arranged in parallel or in a cross-over arrangement.

3. A sanitary napkin according to claim 2, wherein the absorbent unit (132) has a cross-section that is one of square, triangular, and fan-shaped.

4. A sanitary napkin according to claim 3, wherein the cross-sectional area of the absorbent unit (132) is 1mm²～4mm²。

5. A sanitary napkin according to any one of claims 1 to 4, wherein channels are provided in said facing layer (11), said channels extending from said facing layer (11) down to said core (13), and said channels being provided across at least two absorbent units (132).

6. A sanitary napkin according to claim 5, wherein said channels comprise first channels (133) arranged in the direction of the long side of said facing layer (11) and second channels (134) arranged in the direction of the short side of said facing layer (11).

7. A sanitary napkin according to claim 6, wherein the first channels (133) and the second channels (134) each have a width of 3mm to 5 mm.

8. A sanitary napkin according to claim 7, wherein the width of each end of the first channel (133) is greater than the width of the middle of the first channel (133), and the width of each end of the second channel (134) is greater than the width of the middle of the second channel (134).

9. A sanitary napkin according to claim 1, wherein the core (13) comprises a surface layer (135), a polymeric layer (136), and a base layer (137) disposed in that order from adjacent to the fluid-directing layer (12) to distal from the fluid-directing layer (12).

10. A sanitary napkin according to claim 1, wherein said texture (131) is comprised of a plurality of heat and pressure welded spots arranged in series, said spots forming grooves in said facing layer (11), said grooves having a width of at least 3 mm.