CN113576765B

CN113576765B - Multilateral leak-proof sanitary towel and forming method thereof

Info

Publication number: CN113576765B
Application number: CN202110913318.9A
Authority: CN
Inventors: 陈小滨; 黄家齐; 庄碧原
Original assignee: Aab China Industry Co ltd
Current assignee: Aab China Industry Co ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2022-07-26
Anticipated expiration: 2041-08-10
Also published as: CN113576765A

Abstract

The invention relates to the field of sanitary products, in particular to a multilateral leakage-proof sanitary towel which sequentially comprises a liquid-permeable surface layer, an absorption core layer and a liquid-tight bottom layer from top to bottom, wherein the bottom end face of the liquid-tight bottom layer is provided with a back adhesive, the bottom end face of the liquid-tight bottom layer is provided with a release paper, and leakage-proof absorption strips are arranged on the surface of the liquid-permeable surface layer close to the periphery of the absorption core layer, so that liquid on two side edges of the sanitary towel is absorbed in time, the liquid is prevented from diffusing outwards, secondary leakage prevention is realized, and the problems that the liquid excreted by a human body cannot be absorbed in time on the two side edges of the conventional sanitary towel, the experience degree of a user is low, and the liquid is easy to diffuse outwards are solved; the compliance that the leak protection absorption strip passes through the compliance that the ultrasonic wave technology improved the product and absorbs strip and absorption strip itself prevents to absorb the risk that the back explodes, increases the use of product simultaneously and experiences, solves the problem that traditional both sides set up the easy uncomfortable sense of technology on leak protection parting bead. Also provides a forming process of the polygonal leakproof sanitary towel.

Description

Multilateral leak-proof sanitary towel and forming method thereof

Technical Field

The invention relates to the field of sanitary products, in particular to a polygonal leakage-proof sanitary towel and a forming method thereof.

Background

At present, the Chinese patent application number: CN201920663244.6 discloses an environment-friendly breathable sanitary napkin, which comprises a sanitary napkin body, wherein wings are fixedly arranged in the middle of two sides of the sanitary napkin body, a protection pad is fixedly arranged in the middle of the top end of the sanitary napkin body, a sponge cloth pad is fixedly arranged in the middle of two sides of the protection pad, a slot is fixedly arranged in the middle of the bottom end of the sanitary napkin body, two sides of the inner wall of the slot are respectively and fixedly connected with two ends of a plurality of wear-resistant cotton rollers, and viscose pads are fixedly arranged on two sides of the bottom end of the sanitary napkin body;

the authorized and disclosed utility model case "a stable side leakage prevention sanitary towel" (CN202021408837.7), specifically discloses "sanitary towel body, flank and fin", the sanitary towel body has surface layer, absorption layer and bottom layer from top to bottom, one side of the bottom layer far away from female private parts is fixedly provided with a plurality of back glues, the flank is symmetrically arranged at two sides of the sanitary towel body, the flank is fixedly connected with the sanitary towel body, the fin is arranged at the position of the sanitary towel body near female femoral sulcus, the fin is fixedly connected with the sanitary towel body, a single-face adhesive tape is fixedly arranged on the flank at one side of the sanitary towel body, one side of the single-face adhesive tape near the surface layer is sticky material, and an anti-sticking surface layer is arranged on one side of the sticky material of the single-face adhesive tape; although this sanitary towel both sides are provided with the leak protection strip, but only play to the horizontal both sides of sanitary towel and block the separation effect, can not in time absorb liquid, when the user excreted liquid many, the absorbed layer absorbs after thick step volume, follow-up absorption efficiency reduces, and side leak protection strip is to liquid protection separation, but in the in-service use liquid can stop at sanitary towel surface a period, leads to user experience degree low, the easy outdiffusion of liquid.

Disclosure of Invention

Therefore, in order to solve the above problems, the present invention provides a sanitary napkin, which solves the technical problems of the prior sanitary napkin that the two side edges can not absorb the liquid excreted by human body in time, resulting in low user experience and easy outward diffusion of the liquid.

In order to realize the purpose, the invention adopts the following technical scheme: the utility model provides a multilateral leak protection sanitary towel, includes liquid-permeable surface course, absorption sandwich layer and liquid-tight bottom in proper order by last under to, the horizontal both sides of liquid-tight bottom end face are equipped with the gum, liquid-tight bottom end face is equipped with the type paper of leaving that pastes with the gum, liquid-permeable surface course surface is close to and absorbs the peripheral department of sandwich layer and is equipped with the leak protection and absorbs the strip, the leak protection absorbs the strip and includes super absorbent polymer fibre and be used for wrapping up super absorbent polymer's parcel layer non-woven fabrics, wrapping up layer non-woven fabrics includes hydrophilic non-woven fabrics and hydrophobic non-woven fabrics, hydrophilic non-woven fabrics is located the leak protection and absorbs the strip and be close to and absorb sandwich layer center one side, hydrophobic non-woven fabrics is located the leak protection and absorbs the strip and keeps away from absorption sandwich layer one side.

Furthermore, the wrapping layer non-woven fabric is formed by compounding a hydrophilic non-woven fabric and a hydrophobic non-woven fabric.

Furthermore, the hydrophilic non-woven fabrics surround super absorbent polymer fiber and form blockily, the hydrophobic non-woven fabrics surrounds super absorbent polymer fiber and forms blockily, hydrophilic non-woven fabrics terminal surface of laminating in the middle part of the hydrophobic non-woven fabrics is equipped with the through-hole, hydrophilic non-woven fabrics and hydrophobic non-woven fabrics top end face complex are equipped with first water repellent non-woven fabrics, be equipped with the second water repellent membrane between liquid permeability surface course and hydrophilic non-woven fabrics and the hydrophobic non-woven fabrics.

Furthermore, the longitudinal two sides of the leakproof absorption strip are in the shape of a continuous arc, and a sunken concave part is arranged at the position, close to the leakproof absorption strip, of the liquid permeable surface layer.

Further, the shape of the recess is the same as the shape of the leakage preventing absorption bar.

Furthermore, the concave part is arranged along the inner side of the leakage-proof absorption strip, a first transition position is arranged between continuous arcs of the leakage-proof absorption strip, a second transition position is arranged at the continuous first transition position of the concave part, the radius size of the concave part at the second transition position is larger than that of the leakage-proof absorption strip at the first transition position, a straight line connected with the two second transition positions is arranged between the concave part at the second transition position, and the straight line is far away from one side of the leakage-proof absorption strip and is connected with the transition positions at the upper end and the lower end.

Furthermore, a deodorizing capsule is arranged between the liquid-permeable surface layer and the absorption core layer.

A method for forming a polygonal leakproof sanitary towel based on the same inventive concept comprises the following steps:

firstly, inputting a liquid-tight bottom layer, compounding an absorption core layer on the liquid-tight bottom layer, and compounding the liquid-tight bottom layer and a liquid-tight surface layer;

secondly, inputting the leakage-proof absorption strips wrapped with the super absorbent fibers, positioning the surface of the liquid-permeable surface layer at the periphery of the absorption core layer, adhering glue, and adhering the bottom end faces of the leakage-proof absorption strips to the surface of the liquid-permeable surface layer;

thirdly, rolling the leakproof absorption strips on the two transverse sides of the surface of the liquid-permeable surface layer at the inner side by a pressing roller to form a concave part;

a fourth step of preforming the continuous disposable absorbent article; and then a single disposable absorption article is formed by cutting, cutting and folding.

Further, the preparation earlier with hydrophilic non-woven fabrics and hydrophobic non-woven fabrics input before the strip is absorbed in the leak protection, hydrophilic non-woven fabrics and hydrophobic non-woven fabrics complex formation wrapping layer non-woven fabrics, carry wrapping layer non-woven fabrics both sides limit fifty percent discount again, with wrapping layer non-woven fabrics surface filling super absorbent fibers again, close wrapping layer non-woven fabrics top end opening part both sides limit hot pressing again, be around again wrapping layer non-woven fabrics and set for the interval and carry out hot pressing, cut off wrapping layer non-woven fabrics hot pressing department again and form the leak protection and absorb the strip.

Furthermore, before the leak-proof absorbing strip is manufactured, two side edges of the hydrophilic non-woven fabric are folded and conveyed, two side edges of the hydrophobic non-woven fabric are folded and conveyed, super absorbent fibers are filled in the surfaces of the hydrophilic non-woven fabric and the hydrophobic non-woven fabric, a plurality of through holes are formed in the end face, far away from the absorbing core layer, of the hydrophilic non-woven fabric in the conveying process through a roller pricking device, a plurality of through holes are formed in the end face, close to the absorbing core layer, of the hydrophobic non-woven fabric through a roller pricking device, and then the hydrophilic non-woven fabric and the hydrophobic non-woven fabric wrapped with the super absorbent fibers are combined and conveyed, and glue is coated on the top end face and the bottom end face of the hydrophilic non-woven fabric and the hydrophobic non-woven fabric, the hydrophobic non-woven fabric is compounded on the top end face and the bottom end face of the hydrophilic non-woven fabric and the hydrophobic non-woven fabric after the glue is coated, the hydrophilic non-woven fabric and the hydrophobic non-woven fabric are subjected to hot pressing at set intervals in the front and at the back after the glue is coated, and the hot pressing positions of the front and the back leak-proof absorption strips are cut off to form the leak-proof absorption strips.

Further, the roller punching device comprises a punching roller for punching the hydrophilic non-woven fabric and the hydrophobic non-woven fabric, a plurality of punching needles arranged on the outer side of the punching roller, a rolling device arranged on the other side of the punching roller and a supporting plate arranged at the bottom end of the punching roller; be equipped with the setting device who is used for absorbing the strip design to the leak protection on the roller thorn device output, setting device includes bump, concave roller, locates the bottom plate of bump and concave roller bottom and locates the roof on bump and concave roller top, the bump outside is equipped with a plurality of convex archs, be equipped with a plurality of concave recesses that correspond with the convex arch on the concave roller.

Further, the bottom plate and the top plate are arranged in parallel, and the bottom plate and the top plate cover the input roller, the convex roller and the concave roller.

Furthermore, a plurality of convex protrusions are arranged on the outer side of the convex roller, and a plurality of concave parts corresponding to the convex protrusions are arranged on the concave roller.

By adopting the technical scheme, the invention has the beneficial effects that:

the variable leak-proof sanitary towel timely absorbs liquid on two side edges of the sanitary towel through the arrangement of the leak-proof absorption strips, prevents the liquid from diffusing outwards, prevents secondary leak-proof, and solves the problems that the two side edges of the existing sanitary towel can not timely absorb the liquid excreted by human bodies, so that the user experience is low and the liquid is easy to diffuse outwards; the compliance that the leak protection absorption strip passes through the compliance that the ultrasonic wave technology improved the product and absorbs strip and absorption strip itself prevents to absorb the risk that the back explodes, increases the use of product simultaneously and experiences, solves the problem that traditional both sides set up the easy uncomfortable sense of technology on leak protection parting bead.

The parcel layer non-woven fabrics is by hydrophilic non-woven fabrics and the compound setting of hydrophobic non-woven fabrics, and it is high to have a production efficiency to material saving's advantage avoids super absorbent polymer fibre and skin contact simultaneously, causes the shortcoming that experience sense reduces.

The hydrophilic non-woven fabric and the hydrophobic non-woven fabric respectively surround the super absorbent fibers to form a blocky arrangement, and are easy to be stuck on the surface of the liquid-permeable surface layer during processing and production, thereby being beneficial to mass production.

The vertical both sides shape of leak protection absorption strip is continuous curved setting, and the even long-pending partial liquid that stays of each section arc of leak protection absorption strip to the liquid is evenly absorbed by the leak protection absorption strip of each section arc form, avoids linear leak protection absorption strip liquid to flow easily to one side and leads to the hydrops.

The concave part is arranged in the same shape as the leak-proof absorption strip, and the concave part can guide the liquid to flow to two sides, so that the liquid guide speed is accelerated, and the liquid is prevented from being accumulated at one position.

Due to the arrangement of the second transition part, the liquid storage capacity at the second transition part is larger, and the liquid stays at the second transition part and is more easily and fully absorbed by the leakage-proof absorption strips at the second transition part; when liquid passes through the straight line part, the liquid accumulation capacity at the part is large, and the liquid is less prone to penetrate through the leakage-proof absorption strip.

The method for forming the multi-edge leakage-proof sanitary towel based on the same inventive concept realizes high-efficiency production of the leakage-proof absorption strips, realizes adhesion of the leakage-proof absorption strips on the surface of the liquid-permeable surface layer, effectively realizes simple and convenient process and improves production efficiency.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;

FIG. 2 is a schematic view of a partial cross-sectional structure of a first embodiment of the present invention;

FIG. 3 is a cross-sectional view of a first usage state of the absorbent leakage preventing strip according to the first embodiment of the present invention;

FIG. 4 is a partial structural view of a leakage preventing absorbent strip and a concave portion in a first use state according to a first embodiment of the present invention;

FIG. 5 is a partial structure view showing a second use state of the leakage preventing absorption bars and the concave portions according to the first embodiment of the present invention;

FIG. 6 is a sectional view of an absorbent leakage preventing strip according to a second embodiment of the present invention;

FIG. 7 is a schematic top view of a first protrusion and a first recess according to a first embodiment of the present invention;

FIG. 8 is a cross-sectional view of a partial structure of a recess according to a first embodiment of the present invention;

FIG. 9 is a cross-sectional view of a structure of an absorbent core layer and a deodorant gel in a use state according to a first embodiment of the present invention;

FIG. 10 is a schematic view showing a first state of a process for preparing a leakage preventing absorbent strip according to a second embodiment of the present invention;

FIG. 11 is a second state schematic view of a process for preparing absorbent article of the second embodiment of the present invention;

FIG. 12 is a schematic sectional view showing a structure of a leakage preventing absorbent article according to a second embodiment of the present invention;

fig. 13 is a schematic plan view of a roll needling apparatus and a sizing apparatus according to a second embodiment of the present invention.

Detailed Description

The invention will now be further described with reference to the drawings and the detailed description.

Referring to fig. 1 to 9, in the first embodiment, a polygonal leakproof sanitary napkin is provided, which sequentially includes a liquid permeable surface layer 1, an absorbent core layer 2 and a liquid impermeable bottom layer 3 from top to bottom, back glue 4 is disposed on two lateral sides of a bottom end face of the liquid impermeable bottom layer 3, release paper 5 adhered to the back glue 4 is disposed on the bottom end face of the liquid impermeable bottom layer 3, leakproof absorbent strips 6 are disposed on a surface of the liquid permeable surface layer 1 near a periphery of the absorbent core layer 2, the leakproof absorbent strips 6 include super absorbent fibers 61 and wrapping layer non-woven fabrics 62 for wrapping the super absorbent fibers 61, the wrapping layer non-woven fabrics 62 include hydrophilic non-woven fabrics 621 and hydrophobic non-woven fabrics 622, the hydrophilic non-woven fabrics 621 are located on a side of the leakproof absorbent strips 6 near a center of the absorbent core layer 2, and the hydrophobic non-woven fabrics 622 are located on a side of the leakproof absorbent strips 6 away from the absorbent core layer 2; the leak-proof absorption strip can be glued with the liquid-permeable surface layer and is arranged around the absorption core layer. The liquid-permeable surface layer 1 can be hydrophilic non-woven fabric, the liquid-impermeable bottom layer 3 can be water-repellent non-woven fabric, and the absorption core layer 2 is made of bulky non-woven fabric added with high-molecular water-absorbent resin, which are conventional technologies and are not described herein again; the hydrophobic non-woven fabric has the advantages of no stimulation to human skin, good air permeability, good water seepage resistance and good skin affinity, and the super-absorbent fiber and the hydrophobic non-woven fabric are conventional technologies in the field and are not described herein again.

Through the arrangement of the leakage-proof absorption strips, when the sanitary towel is used for lying on one side, liquid on the surface of the liquid-permeable surface layer flows from the middle part to one side, the leakage-proof absorption strips are arranged on the periphery of the surface of the liquid-permeable surface layer, the liquid is stopped by the leakage-proof absorption strips in the process of flowing to one side, the leakage-proof absorption strips are close to the hydrophilic non-woven fabric on one side of the center of the absorption core layer, after the leakage-proof absorption strips are contacted with the liquid, the liquid can be absorbed by the super absorbent fibers on the inner side through the hydrophilic non-woven fabric in time, the liquid is prevented from diffusing outwards, secondary leakage is prevented, the problem that the side leakage is easy to occur under the condition of large menstrual period of women is solved, the conventional leakage-proof strips absorb the liquid in time, the leakage-proof absorption strips improve the softness of the product and the sealing property of the absorption strips and the absorption strips through an ultrasonic process, the risk of explosion after absorption is prevented, and the use experience of the product is improved at the same time, the problem of the easy uncomfortable sense of traditional both sides setting up the technology of leak protection flange is solved.

As shown in fig. 1 and 3, the wrapping layer nonwoven fabric 62 is formed by combining a hydrophilic nonwoven fabric 621 and a hydrophobic nonwoven fabric 622; the arrangement mode is characterized in that the hydrophilic non-woven fabric and the hydrophobic non-woven fabric are compounded in advance in the production and conveying process, and then the super absorbent fibers are wrapped by the compounded wrapping layer non-woven fabric, so that the production efficiency is high, and the materials are saved; during the use, because hydrophilic non-woven fabric 621 is located leak protection absorption strip 6 and is close to and absorbs 2 center one sides of sandwich layer, hydrophobic non-woven fabric is fixed to hydrophilic non-woven fabric both sides complex, and this parcel layer non-woven fabric horizontal one side absorbs liquid, and top face and other parts are covered by hydrophobic non-woven fabric, and parcel layer non-woven fabric hydrophobic non-woven fabric can carry out the separation to inboard super absorbent polymer fibre, avoids super absorbent polymer fibre and skin contact, causes the shortcoming that experience sense reduces.

As shown in fig. 6, the hydrophilic nonwoven fabric 621 may also be formed into a block shape by surrounding the super absorbent fiber 61, the hydrophobic nonwoven fabric 622 is formed into a block shape by surrounding the super absorbent fiber 61, a through hole 6b is formed on one end surface of the hydrophilic nonwoven fabric 621 attached to the middle part of the hydrophobic nonwoven fabric 622, and a first water-repellent nonwoven fabric 6c is combined with the top end surfaces of the hydrophilic nonwoven fabric 621 and the hydrophobic nonwoven fabric 622; during production, the hydrophilic non-woven fabric is coated with the super-absorbent fibers and formed into strips, the hydrophobic non-woven fabric is coated with the super-absorbent fibers and formed into strips, the strips formed by the hydrophilic non-woven fabric and the hydrophobic non-woven fabric are combined and pasted on the liquid-permeable surface layer, and the first water-repellent non-woven fabric is pasted on the surface of the strips formed by the hydrophilic non-woven fabric and the hydrophobic non-woven fabric; a second water repellent film 6d is arranged between the liquid permeable surface layer 1 and the hydrophilic non-woven fabric 621 and the hydrophobic non-woven fabric 622; the second water repellent film is arranged, when the anti-leakage absorbent strip is used, the bottom end surfaces of the hydrophilic non-woven fabric 621 and the hydrophobic non-woven fabric 622 are attached by the second water repellent film, and the super absorbent fibers can be prevented from permeating after the super absorbent fibers are absorbed by the absorbent core layers at the bottom ends of the hydrophilic non-woven fabric 621 and the hydrophobic non-woven fabric 622, so that the super absorbent fibers are prevented from permeating through the absorbent core layers at the bottom ends to influence the side absorption performance of the anti-leakage absorbent strip; between hydrophilic non-woven fabrics 621 and the hydrophobic non-woven fabrics 622, the liquid that hydrophilic non-woven fabrics one end pair absorbed the sandwich layer absorbs, and the hydrophobic non-woven fabrics of the hydrophobic non-woven fabrics other end can block in the hydrophilic non-woven fabrics that super absorbent polymer fibre absorbs body fluid and spill over from one side, and the first water non-woven fabrics of refusing on hydrophilic non-woven fabrics top can avoid super absorbent polymer fibre in the hydrophilic non-woven fabrics to absorb back and skin contact, causes to experience the sense and reduces.

As shown in fig. 1, 2 and 4, the shapes of the two longitudinal sides of the leakage-proof absorption strip 6 are continuous arcs, the liquid-permeable surface layer 1 is provided with a sunken concave part 1a near the leakage-proof absorption strip 6, and the shapes of the two longitudinal sides of the leakage-proof absorption strip can be replaced by straight lines or other shapes; in the actual use process, the legs of a human body can incline to a certain degree, through experimental tests, when the liquid is absorbed by the linearly arranged leakage-proof absorption strips, the liquid flows to one inclined side, when the menstrual period is large, the liquid is easy to generate accumulated liquid and diffuse outwards in the area positioned on one side of the leakage-proof absorption strips, the leakage-proof absorption strips are arranged in a continuous arc shape, when the liquid passes through the surface of the leakage-proof absorption strips, the liquid flows to one section of arc-shaped leakage-proof absorption strip due to the fact that the leakage-proof absorption strips are continuously formed in a plurality of arc shapes, the redundant liquid flows to one inclined side, part of liquid is uniformly accumulated in each section of arc shape of the leakage-proof absorption strips, and the liquid is uniformly absorbed by each section of arc-shaped leakage-proof absorption strips, so that the accumulated liquid caused by the fact that the liquid of the linearly arranged leakage-proof absorption strips easily flows to one side is avoided; when a user with a large menstrual period lies on his side, even if the leakage-proof absorption strips are arranged, part of liquid easily overflows the leakage-proof absorption strips, and the arrangement of the concave parts ensures that the liquid-permeable surface layer is close to the surfaces of the leakage-proof absorption strips and has a concave shape, so that a larger volume of liquid can be absorbed, and the problem that the liquid easily overflows and falls off due to the fact that the liquid easily overflows the leakage-proof absorption strips is solved; the continuous arc-shaped leak-proof absorption strip is made of more materials than straight lines, and has better absorption effect.

The shape of the concave part 1a is the same as that of the leakage-proof absorption strip 6, when the concave part and the arc-shaped leakage-proof absorption strip are arranged in the same shape, and a large amount of liquid is attached to the leakage-proof absorption strip, the concave part can guide the liquid to flow to two sides after the large amount of liquid is contacted with the leakage-proof absorption strip due to the same shape of the concave part and the leakage-proof absorption strip, so that the liquid guide speed is accelerated, and the liquid is prevented from being accumulated at one part.

As shown in fig. 5, the concave portion 1a is arranged along the inner side of the leakage preventing absorption bar 6, the continuous arcs of the leakage preventing absorption bar 6 have a first transition 6a therebetween, the concave portion 1a is provided with a second transition 1b at the continuous first transition 6a, and the radius of the concave portion 1a at the second transition 1b is larger than that of the leakage preventing absorption bar 6 at the first transition 6 a; the second transition is arranged, wherein the second transition is convex, when liquid flows to one side through the second transition and is easily guided to flow through the second transition, the liquid passing through the second transition is fully absorbed, and when the radius size range of the second transition is larger than that of the first transition, the liquid storage capacity of the second transition is larger, and the liquid stays at the second transition and is fully absorbed by the leakproof absorption strips at the second transition.

A straight line 1c connected with the two second transition parts 1b is arranged between the second transition parts 1b of the concave part 1a, and the side, far away from the leakage-proof absorption strip 6, of the straight line 1c is a straight line 1c connected with the transition parts at the upper end and the lower end; because the straight line is separated from the arc middle part at one end of the concave part, when liquid passes through the straight line part, the liquid accumulation capacity at the part is large, and the liquid is not easy to permeate the leakproof absorption strip.

As shown in fig. 1 and fig. 7, a plurality of first protrusions 101 are disposed on the surfaces of the liquid-permeable surface layer 1 and the absorbent core layer 2, four peripheral edges of the first protrusions 101 are rectangular, and four peripheral corners of the first protrusions 101 are in smooth transition. Preferably 1/4 between smooth transitions equal to the dimension of the side length of the outer periphery; the first bulge part is arranged, the contact area of the absorption core layer and the skin can be reduced by the first bulge part, so that the use is more comfortable, and when the first bulge part is rectangular, a plurality of flow guide channels are formed among the rectangles, and liquid is diffused and guided through the flow guide channels, so that the defect of easy liquid accumulation in use can be avoided; as shown in fig. 9, a deodorizing capsule 100a is arranged between the liquid-permeable surface layer and the absorption core layer; the deodorizing capsule is made of powder or liquid with resistance deodorizing function, the deodorizing capsule is easy to dissolve in water, urine or other liquid passes through the liquid-permeable surface layer, after the antibacterial deodorizing capsule meets the liquid, the deodorizing capsule is melted to release antibacterial deodorizing components, the antibacterial deodorizing side core body in the deodorizing capsule is in contact and mixed with the liquid, the contacted liquid is not easy to smell and grow bacteria for a long time, and the defects that the liquid is easy to generate peculiar smell and grow bacteria after being contacted by an absorber are avoided; the coating material in the deodorant capsule can be antibacterial essential oil or antibacterial powder, or can be replaced by other prior art, which is not described herein.

As shown in fig. 7 and 8, a plurality of concave portions 102 are disposed on the surfaces of the liquid-permeable surface layer 1 and the absorbent core layer 2, the shape of the middle of the concave portion 102 is a cone 103, tip recesses 104 are disposed at the front and rear ends of the concave portion 108, a plurality of first convex portions 101 form a first horizontal row, a plurality of concave portions 102 form a second horizontal row, and the first horizontal row and the second horizontal row are staggered. Depressions 102 are located between first projections 101 in a first row; wherein the middle part shape is the depressed part of cone, depressed part 102 is located between the first bellying 101 of first horizontal row, the liquid of circulation will pass through the depressed part between the first bellying, the liquid that the depressed part trickle flows carries out the absorptivity better, owing to have the sunken of certain cone shape, the liquid absorbed quantity of process is bigger, and both ends are the sunken setting of point portion around the depressed part, this point portion is sunken to do benefit to the liquid of process and is carried out the water conservancy diversion, the not timely absorbent liquid of depressed part is through the sunken outflow of this point portion, it is too much to avoid the depressed part to accumulate liquid, experience when leading to using is dry and comfortable and feels and reduces.

As shown in fig. 10 to 13, the second embodiment is a method for forming a multi-edge leakage-proof sanitary napkin based on the same inventive concept, comprising the steps of:

firstly, inputting a liquid-tight bottom layer 3, compounding an absorption core layer 2 on the liquid-tight bottom layer 3, and compounding the liquid-tight bottom layer 3 and a liquid-tight surface layer 1;

secondly, inputting the leak-proof absorption strips wrapped with the super absorbent fibers, adhering glue to the periphery of the absorption core layer on the surface of the liquid-permeable surface layer 1, and adhering the bottom end faces of the leak-proof absorption strips to the surface of the liquid-permeable surface layer 1;

thirdly, forming concave parts 1a at the inner sides of the leakproof absorption strips at the two transverse sides of the surface of the liquid-permeable surface layer 1 by rolling a press roller,

As shown in fig. 10, the first usage status of the leakage-proof absorption strip is made by inputting hydrophilic non-woven fabric 621 and hydrophobic non-woven fabric 622, combining the hydrophilic non-woven fabric and the hydrophobic non-woven fabric to form a wrapping layer non-woven fabric, folding two side edges of the wrapping layer non-woven fabric for conveying, filling super absorbent fibers on the surface of the wrapping layer non-woven fabric, hot-pressing and sealing two side edges of an opening at the top end of the wrapping layer non-woven fabric, cutting off redundant hot-pressed edges by using the existing cutting equipment, hot-pressing the front and back of the wrapping layer non-woven fabric at a set interval, and cutting off the hot-pressed part of the wrapping layer non-woven fabric to form the leakage-proof absorption strip; this preparation technology mode is simple, only need in the production process compound hydrophilic non-woven fabrics and hydrophobic non-woven fabrics, it carries to stereotype compound hydrophilic non-woven fabrics and hydrophobic non-woven fabrics, fill into behind the super absorbent polymer fibre in compound hydrophilic non-woven fabrics and the hydrophobic non-woven fabrics again, seal compound hydrophilic non-woven fabrics and hydrophobic non-woven fabrics top opening, the front and back opening seals, cut off continuous hydrophilic non-woven fabrics and hydrophobic non-woven fabrics again, can compound on liquid permeability surface course surface, production efficiency is faster, in the time of the use, product experience feels good.

As shown in FIG. 11, the second usage status of the leak-proof absorbent strip is to fold the two sides of the hydrophilic nonwoven fabric in half and then to transport the two sides of the hydrophobic nonwoven fabric in half, to fill the superabsorbent fibers in the surfaces of the hydrophilic nonwoven fabric and the hydrophobic nonwoven fabric, to prick a plurality of through holes on the end surface of the hydrophilic nonwoven fabric far away from the absorbent core layer by a roller-pricking device, to prick a plurality of through holes on the end surface of the hydrophobic nonwoven fabric near the absorbent core layer by a roller-pricking device, to combine and transport the hydrophilic nonwoven fabric and the hydrophobic nonwoven fabric wrapped with the superabsorbent fibers, coating glue on the top end faces and the bottom end faces of the hydrophilic non-woven fabrics and the hydrophobic non-woven fabrics, then compounding the water-repellent non-woven fabrics on the top end faces and the bottom end faces of the hydrophilic non-woven fabrics and the hydrophobic non-woven fabrics, carrying out hot-pressing on the hydrophilic non-woven fabrics and the hydrophobic non-woven fabrics at a set distance from the front to the back, and then cutting off the hot-pressing positions of the front and the back leakage-proof absorption strips to form leakage-proof absorption strips; this production mode is earlier two absorption strips to hydrophilic non-woven fabrics and hydrophobic non-woven fabrics parcel super absorbent nature fibre preforming, then merges through pricking hydrophilic non-woven fabrics and hydrophobic non-woven fabrics, and the non-woven fabrics is refused to last upper and lower complex, and this mode production speed is fast, when promoting the leak protection absorption strip and absorbing and use experience, compromises production efficiency.

As shown in fig. 12, the structure of wrapping the super absorbent fibers with the hydrophilic nonwoven fabric is adjusted, the hydrophilic nonwoven fabric is filled with the first hydrophilic fibers 60a at intervals, the super absorbent fibers in the hydrophilic nonwoven fabric are arranged between the first hydrophilic fibers, the hydrophobic nonwoven fabric and the hydrophilic nonwoven fabric are arranged with the second hydrophilic fibers 60b, and the second hydrophilic fibers are filled in the hydrophilic nonwoven fabric; due to the arrangement of the first hydrophilic fibers, part of liquid can permeate the first hydrophilic fibers in the hydrophilic non-woven fabric and can be absorbed by the super absorbent fibers in the hydrophobic non-woven fabric; the second hydrophilic fiber is arranged between the hydrophobic non-woven fabric and the hydrophilic non-woven fabric, when the super-absorbent fibers in the hydrophilic non-woven fabric absorb enough liquid, redundant liquid and liquid penetrating through the first hydrophilic fibers attract the liquid through the second hydrophilic fibers, and the liquid is absorbed by the super-absorbent fibers in the hydrophobic non-woven fabric through the second hydrophilic fibers due to the fact that the second hydrophilic fibers are close to the hydrophobic non-woven fabric, so that the hydrophobic non-woven fabric can absorb the redundant liquid in the hydrophilic non-woven fabric and the liquid penetrating through the first hydrophilic fibers; the width of the hydrophobic non-woven fabric is smaller than that of the hydrophilic non-woven fabric, the absorption capacity of the hydrophobic non-woven fabric is limited, and the hydrophobic non-woven fabric with small width has the advantage of saving super absorbent fiber materials while keeping certain absorption performance.

As shown in fig. 13, the roll-punching means 7 includes a punching roll 701 for punching a hydrophilic nonwoven fabric 621 and a hydrophobic nonwoven fabric 622, a plurality of punching needles 702 provided outside the punching roll 701, a roll-pressing means 703 provided on the other side of the punching roll 701, and a support plate 704 provided at a bottom end of the punching roll 701; the output end of the roller needling device 7 is provided with a shaping device 8 for shaping the shapes of the leak-proof absorption strips 6, the shaping device 8 comprises two input rollers 80, a convex roller 81, a concave roller 82, a bottom plate 83 arranged at the bottom ends of the convex roller 81 and the concave roller 82 and a top plate 84 arranged at the top ends of the convex roller 81 and the concave roller 82, a plurality of convex protrusions are arranged on the outer side of the convex roller 81, and a plurality of concave recesses corresponding to the convex protrusions are arranged on the concave roller 82, so that the leak-proof strips are rolled to form continuous curve shapes; the bottom plate 83 is arranged in parallel with the top plate 84, and the bottom plate 83 and the top plate 84 are covered with the input roller 80, the male roller 81 and the female roller 82; the top end surface and the bottom end surface of the leakage-proof strip can be shaped in the conveying process, and are extruded by the two input rollers 80, the convex roller 81 and the concave roller 82 to form a strip shape, so that the leakage-proof strip is favorably formed.

Through the arrangement of the roller-pricking device, one side surface of the hydrophilic non-woven fabric 621 and one side surface of the hydrophobic non-woven fabric 622 which pass through the roller-pricking device can be pricked to form through holes, and the hydrophilic non-woven fabric and the hydrophobic non-woven fabric can be efficiently conveyed; the setting device is arranged, wherein after the hydrophilic non-woven fabric 621 and the hydrophobic non-woven fabric 622 are output by the roller needling device, the hydrophilic non-woven fabric 621 and the hydrophobic non-woven fabric 622 are combined through the two input rollers, and because the upper end and the lower end of each input roller are provided with the top plate and the bottom plate, the heights of the upper end face and the lower end face of the hydrophilic non-woven fabric 621 and the hydrophobic non-woven fabric 622 can be limited, and meanwhile, the position deviation of the hydrophilic non-woven fabric 621 or the hydrophobic non-woven fabric 622 in the combining process is avoided; after the combination and the input, the hydrophilic non-woven fabric 621 and the hydrophobic non-woven fabric 622 are rolled by the convex roller 81 and the concave roller 82 to form an arc shape, so that the hydrophilic non-woven fabric 621 and the hydrophobic non-woven fabric 622 are efficiently produced, and the batch production of the hydrophilic non-woven fabric 621 and the hydrophobic non-woven fabric 622 is facilitated.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Claims

1. A multilateral leak-proof sanitary towel is characterized by sequentially comprising a liquid-permeable surface layer, an absorption core layer and a liquid-impermeable bottom layer from top to bottom, wherein back glue is arranged on two transverse sides of the bottom end face of the liquid-impermeable bottom layer, release paper adhered to the back glue is arranged on the bottom end face of the liquid-impermeable bottom layer, leak-proof absorption strips are arranged on the surface of the liquid-permeable surface layer close to the periphery of the absorption core layer and comprise super-absorbent fibers and wrapping layer non-woven fabrics for wrapping the super-absorbent fibers, the wrapping layer non-woven fabrics comprise hydrophilic non-woven fabrics and hydrophobic non-woven fabrics, the hydrophilic non-woven fabrics are positioned on one side, close to the center of the absorption core layer, of the leak-proof absorption strips, and the hydrophobic non-woven fabrics are positioned on one side, far away from the absorption core layer, of the leak-proof absorption strips;

the hydrophilic non-woven fabric surrounds the super-absorbent fibers to form a block shape, the hydrophobic non-woven fabric surrounds the super-absorbent fibers to form a block shape, a through hole is formed in the middle of the hydrophobic non-woven fabric and attached to one end face of the hydrophilic non-woven fabric, a first water repellent non-woven fabric is compounded on the top end faces of the hydrophilic non-woven fabric and the hydrophobic non-woven fabric, and a second water repellent film is arranged between the liquid-permeable surface layer and the hydrophilic non-woven fabric as well as between the liquid-permeable surface layer and the hydrophobic non-woven fabric;

the surfaces of the liquid-permeable surface layer and the absorption core layer are provided with a plurality of first bulges, the four peripheral edges of each first bulge are rectangular, the four peripheral corners of each first bulge are in smooth transition, the smooth transition is equal to 1/4 of the side length size of the periphery, and a deodorizing capsule is arranged between the liquid-permeable surface layer and the absorption core layer;

the concave part is arranged along the inner side of the leakage-proof absorption strip, a first transition position is arranged between the continuous arcs of the leakage-proof absorption strip, a second transition position is arranged at the continuous first transition position of the concave part, the radius size of the second transition position of the concave part is larger than that of the first transition position of the leakage-proof absorption strip, a straight line connected with the two second transition positions is arranged between the second transition positions of the concave part, and the straight line is far away from one side of the leakage-proof absorption strip and is a straight line connected with the transition positions at the upper end and the lower end.

2. The polygonal leakage-proof sanitary napkin as claimed in claim 1, wherein: the wrapping layer non-woven fabric is formed by compounding a hydrophilic non-woven fabric and a hydrophobic non-woven fabric.

3. The polygonal leakage-proof sanitary napkin as claimed in claim 1, wherein: the vertical both sides shape of leak protection absorption strip is continuous arc, the liquid-permeable surface course is close to leak protection absorption strip department and is equipped with sunken concave part.

4. A multi-sided leak-proof sanitary napkin as claimed in claim 3, wherein: the shape of the recess is the same as that of the leakage preventing absorption bar.

5. A method for forming a polygonal leakproof sanitary towel is characterized in that: the method comprises the following steps:

firstly, inputting a liquid-tight bottom layer, compounding an absorption core layer on the liquid-tight bottom layer, and compounding the liquid-tight bottom layer and a liquid-tight surface layer; before manufacturing the leak-proof absorbing strips, two side edges of the hydrophilic non-woven fabric are folded and conveyed, two side edges of the hydrophobic non-woven fabric are folded and conveyed, super absorbent fibers are filled in the surfaces of the hydrophilic non-woven fabric and the hydrophobic non-woven fabric, a plurality of through holes are punched on the end surface, far away from the absorbing core layer, of the hydrophilic non-woven fabric in the conveying process through a roller punching device after the manufacture is finished, a plurality of through holes are punched on the end surface, close to the absorbing core layer, of the hydrophobic non-woven fabric through the roller punching device, and then the hydrophilic non-woven fabric and the hydrophobic non-woven fabric wrapped with the super absorbent fibers are combined and conveyed, coating glue on the top end faces and the bottom end faces of the hydrophilic non-woven fabrics and the hydrophobic non-woven fabrics, then compounding the water-repellent non-woven fabrics on the top end faces and the bottom end faces of the hydrophilic non-woven fabrics and the hydrophobic non-woven fabrics, performing hot-pressing on the hydrophilic non-woven fabrics and the hydrophobic non-woven fabrics at a set distance from the front to the back, and cutting off the hot-pressing positions of the front and the back leakage-proof absorption strips to form leakage-proof absorption strips;

secondly, inputting the leak-proof absorption strips wrapped with the super absorbent fibers, positioning the surface of the liquid-permeable surface layer at the periphery of the absorption core layer, adhering glue, and adhering the bottom end faces of the leak-proof absorption strips to the surface of the liquid-permeable surface layer;

thirdly, rolling the leakproof absorption strips on the two transverse sides of the surface of the liquid-permeable surface layer at the inner side by a press roller to form a concave part;

a fourth step of preforming the continuous disposable absorbent article; and then the single disposable absorption article is formed by cutting, slitting and folding.

6. The method for forming a polygonal leakproof sanitary napkin as claimed in claim 5, wherein: the roller punching device comprises a punching roller for punching the hydrophilic non-woven fabric and the hydrophobic non-woven fabric, a plurality of punching needles arranged on the outer side of the punching roller, a rolling device arranged on the other side of the punching roller and a supporting plate arranged at the bottom end of the punching roller; be equipped with the setting device who is used for absorbing the shape design of strip to the leak protection on the roller thorn device output, setting device includes two input rollers, protruding roller, concave roller, locates the bottom plate of protruding roller and concave roller bottom and locates the roof on protruding roller and concave roller top.

7. The method for forming a polygonal leakproof sanitary napkin as claimed in claim 6, wherein: the bottom plate and the top plate are arranged in parallel, and the bottom plate and the top plate cover the input roller, the convex roller and the concave roller.

8. The method for forming a polygonal leakproof sanitary napkin as claimed in claim 6, wherein: the outer side of the convex roller is provided with a plurality of convex protrusions, and the concave roller is provided with a plurality of concave parts corresponding to the convex protrusions.