CN219148228U - Disposable absorption article with good flow guiding effect - Google Patents
Disposable absorption article with good flow guiding effect Download PDFInfo
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- CN219148228U CN219148228U CN202222820302.6U CN202222820302U CN219148228U CN 219148228 U CN219148228 U CN 219148228U CN 202222820302 U CN202222820302 U CN 202222820302U CN 219148228 U CN219148228 U CN 219148228U
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Abstract
The utility model relates to the field of sanitary products, and provides a disposable absorbent product with good flow guiding effect, which solves the defects of poor flow guiding effect and low liquid absorption diffusion speed of the disposable sanitary product in the prior art.
Description
Technical Field
The utility model relates to the field of sanitary products, in particular to a disposable absorbent product with a flow guiding effect.
Background
The traditional disposable absorbent article generally comprises a liquid-permeable surface layer, an absorber and a liquid-impermeable bottom layer which are sequentially laminated from top to bottom, wherein the liquid-permeable surface layer generally consists of hydrophilic non-woven fabrics and hydrophobic leakage-proof isolation edges arranged on two lateral sides of the hydrophilic non-woven fabrics, the absorber is formed by mixing fluff pulp and high-molecular water-absorbent resin, and the liquid-impermeable bottom layer consists of a PE film and non-woven fabrics arranged on the bottom surface of the PE film.
Chinese patent No. CN216652651U discloses a disposable absorbent article comprising an absorbent article body comprising a liquid permeable top layer, a liquid impermeable bottom layer, an absorbent layer and two leak-proof side wings; the liquid-permeable surface layer is arranged above the liquid-impermeable bottom layer; the absorption layer is arranged in the liquid-permeable surface layer; the two leakage-proof side wings are respectively arranged at two sides of the liquid-permeable surface layer; the edges of both sides of the liquid-permeable surface layer are provided with first elastic yarns; the disposable absorbent article is one of paper diapers and training pants; the liquid-permeable surface layer is connected with the liquid-impermeable bottom layer through the bonding layer; the distance between the edge of the liquid-permeable surface layer and the adhesive layer is 13 mm-45 mm; the distance between the edge of the liquid-permeable surface layer and the edge of the absorption layer is 5 mm-25 mm.
The disposable article is provided with the leakage-proof side wings, the distance between the liquid-permeable surface layer and the adhesive layer and the distance between the edge of the liquid-permeable surface layer and the edge of the absorption layer, so that urine leakage in the use process can be prevented, and the defects of poor flow guiding effect and low liquid absorption diffusion speed still cannot be solved.
Disclosure of Invention
Therefore, the utility model provides a disposable absorbent article with good diversion effect, which solves the defects of poor diversion effect, low liquid absorption and diffusion speed and small diffusion area of the disposable sanitary article in the prior art.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a disposable absorbent article that water conservancy diversion effect is good, includes the absorption body, the absorption body has front waistline and back waistline, the absorption body includes that top-down stacks gradually liquid permeability surface course, absorber and liquid impermeable bottom, defines the absorber and has along longitudinal direction and along width direction's horizontal, back waistline horizontal both sides are equipped with the magic subsides, the guiding gutter has been seted up on the absorber, the guiding gutter inner wall sets up continuous incessant dent, the dent is hemisphere structure, the horizontal width of guiding gutter is 4-40mm, the degree of depth of guiding gutter is 1/3-1 times of absorber thickness, the length that the guiding gutter distributes at longitudinal direction is 1/3 of absorber longitudinal length at least, the front waistline inboard is located the surface of liquid permeability surface course and is equipped with the skin care layer, the back waistline inboard is located the surface of liquid permeability surface course and is equipped with the leak protection layer, there is the liquid through-hole on the liquid permeability surface course.
The further improvement is that: the bottom surface of the liquid-permeable surface layer is coated with skin-care antibacterial material at the position corresponding to the diversion trench.
The further improvement is that: the guide grooves are two strip-shaped guide grooves which extend longitudinally respectively, and the transverse distance between the strip-shaped guide grooves is 20-30mm.
The further improvement is that: the cross section area of the diversion trench in the thickness direction gradually increases from top to bottom.
The further improvement is that: the skin care layer is an elastic PU layer or a bulked non-woven fabric layer, and the leakage-proof layer is a bulked non-woven fabric layer.
The further improvement is that: the surface of the diversion trench is provided with a water-repellent structure layer, the water-repellent structure layer is provided with a plurality of through holes, and the water-repellent structure layer is a water-repellent non-woven fabric or a water-repellent pattern layer.
The further improvement is that: when the depth of the diversion trench is equal to the thickness of the absorber, the liquid-permeable surface layer and the liquid-impermeable bottom layer which are positioned at the diversion trench are fixedly connected through ultrasonic waves.
The further improvement is that: when the depth of the diversion trench is smaller than the thickness of the absorber, the liquid-permeable surface layer positioned at the diversion trench is fixed with the diversion trench in a mode of glue spraying and hot pressing.
The further improvement is that: the grooves are U-shaped, and the shortest distance between the transverse areas of the grooves is 10mm-30mm.
The further improvement is that: the grooves are formed by a plurality of diamond-shaped small grooves, the small grooves are distributed on the absorber at intervals, and the distance between the grooves is larger than 5mm.
By adopting the technical scheme, the utility model has the beneficial effects that:
1. the disposable absorbent article with good flow guiding effect has the advantages that the absorbent body is provided with the flow guiding grooves, the transverse width of the flow guiding grooves is larger than 3mm, the depth is 0.3-1 times of the thickness of the absorbent body, the length is at least 1/3 of the longitudinal length of the absorbent body, and the flow guiding grooves with the structure can enable liquid to be rapidly dispersed into the absorbent body, the absorption speed is high, the diffusion range is large, and the absorbent body can be fully utilized.
2. The water-repellent structure layer is arranged on the surface of the diversion trench, a plurality of through holes are formed in the water-repellent structure layer, liquid cannot be absorbed at the non-through holes of the diversion trench but is guided to the absorber through the through holes or other areas of the diversion trench, and the diffusion speed of the liquid is increased.
3. The skin care layer and the leakage prevention layer are respectively arranged on the surfaces of the liquid permeable surface layers at the inner side of the front waistline and the inner side of the rear waistline, so that the excretory fluid is not easy to leak back and forth, and meanwhile, the skin care layer is a soft and bulked non-woven fabric layer, so that the skin care layer is relatively skin-friendly and comfortable to use.
5. The skin care antibacterial material is coated on the corresponding part of the bottom surface of the liquid-permeable surface layer and the diversion trench, the liquid-permeable surface layer is uniformly provided with the liquid-guide through holes, after urine enters the liquid-permeable surface layer, the skin care antibacterial material at the diversion trench can be dissolved and reversely seeped to the liquid-permeable surface layer through the liquid-guide through holes on the liquid-permeable surface layer, and as the density of the skin care antibacterial material is lighter than that of water, the skin care antibacterial material can float to the outermost surface to be attached to the skin to realize a certain skin care effect.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of A-A of FIG. 1;
FIG. 3 is a schematic diagram illustrating a press roller process flow according to an embodiment of the utility model;
FIG. 4 is a schematic illustration of a preparation process according to a first embodiment of the present utility model;
FIG. 5 is a schematic diagram of a second embodiment of the present utility model;
FIG. 6 is a schematic view of a second embodiment of the present utility model;
FIG. 7 is a schematic diagram of a third embodiment of the present utility model;
FIG. 8 is a schematic diagram of a fourth embodiment of the present utility model;
FIG. 9 is a schematic diagram of a fifth embodiment of the present utility model;
FIG. 10 is a schematic diagram of a sixth embodiment of the present utility model;
FIG. 11 is a schematic diagram of a press roller process flow in a seventh embodiment of the utility model;
FIG. 12 is a schematic diagram of an eighth embodiment of the present utility model;
FIG. 13 is a schematic view of a flow guiding groove according to a ninth embodiment of the present utility model;
fig. 14 is a schematic structural view of an arc-shaped cutter device according to a ninth embodiment of the present utility model.
Detailed Description
The following describes embodiments of the present utility model in detail with reference to specific examples, so as to solve the technical problem by applying the technical means to the present utility model, and the implementation process for achieving the technical effect can be fully understood and implemented accordingly.
Example 1
Referring to fig. 1 to 4, a disposable absorbent article with good flow guiding effect comprises an absorbent body, the absorbent body has a front waistline and a rear waistline, the absorbent body comprises a liquid permeable surface layer 1, a flow guiding layer 19, an absorbent body 2 and a liquid impermeable bottom layer 3 which are sequentially laminated from top to bottom, the liquid impermeable bottom layer is composed of a PE film 31 and a hydrophobic non-woven fabric 32 arranged at the bottom of the PE film, the absorbent body 2 is defined to have a longitudinal direction along the length direction and a transverse direction along the width direction, magic tapes 9 are arranged on two transverse sides of the rear waistline, the absorbent body 2 is provided with a flow guiding groove 21, the transverse width of the flow guiding groove 21 is 8mm, the depth of the flow guiding groove 21 is 2/3 of the thickness of the absorbent body 2, the length of the flow guiding groove 21 distributed in the longitudinal direction is 2/3 of the longitudinal length of the absorbent body 2, the surface of the inner side of the front waistline is provided with an elastic PU layer 10, the surface of the inner side of the liquid permeable surface layer is provided with a bulk non-woven fabric layer 11, and the flow guiding groove 21 in the embodiment is in the longitudinal direction, namely, the flow guiding groove 21 gradually changes from the transverse direction to transverse direction.
The preparation method of the disposable absorbent article with good flow guiding effect comprises the following preparation steps:
(1) Preparing a liquid-permeable surface layer: uncoiling and online conveying the hydrophilic non-woven fabric, uniformly distributing liquid guide through holes on the surface of the hydrophilic non-woven fabric by a needling roller, and intermittently spraying skin care antibacterial material to the bottom surface of the liquid permeable surface layer on line;
(2) Preparing a diversion layer: the method comprises the steps that a fluffy fiber layer is uncoiled on line, a diversion layer with liquid guide holes uniformly distributed on the surface is obtained after treatment by a pair of needling rollers, each needling roller comprises a needling main roller and a bottom roller matched with the needling main roller, a needling needle is arranged on the circumferential side wall of the needling main roller, the pore diameter of the needling needle is gradually reduced from the circumferential side wall far from the main roller to the circumferential side wall surface close to the main roller, so that the liquid guide holes on the surface of the treated diversion layer are gradually reduced, namely, the direction from the position close to a core layer to the direction close to a liquid permeable surface layer is gradually reduced, and a good reverse osmosis prevention effect is achieved;
(3) Preparing an absorber: a. uniformly mixing the high-molecular water-absorbent resin and fluff pulp, uniformly broadcasting the mixture in a mold wheel mold cavity on line, wherein a plurality of mold cavities are formed in the surface of the mold wheel, an absorption core forming net is arranged at the bottom of each mold cavity, a baffle plate is arranged in each mold cavity, the height of the baffle plate is 1.1 times of the depth of the mold cavity, the height of the baffle plate is higher than the depth of the mold cavity, so that a groove corresponding to the baffle plate in the final absorption core can penetrate through the whole absorption core after macromolecule blanking, the width of the baffle plate is greater than 3mm, the length of the baffle plate is more than 1/2 of the length of the mold cavity, and the high-molecular water-absorbent resin and fluff pulp are molded in the mold cavity to obtain the absorption core; b. transferring each absorbent core to a carrying layer in on-line transmission through a transfer wheel to obtain an absorbent body with grooves; the surface of the bearing layer is pre-scraped with strip-shaped hot melt adhesive, and the fixed connection with the absorption core is realized through the hot melt adhesive; the transfer wheel is provided with guide blocks matched with the striker plates, the absorption core is transferred to the transfer wheel in the process of rotating the die wheel and is transferred to the carrying layer transmitted on line again through the transfer wheel, and the carrying layer in the embodiment is non-woven fabric; c. the absorber in the step b is conveyed on line and sent to a group of laminating rollers for treatment, wherein the laminating rollers comprise an upper convex roller 13 and a lower flat roller 14, and the circumferential surface of the upper convex roller 13 is provided with a convex block 15; the shape of the baffle plate is the same as that of the convex block of the upper convex roller, and the baffle plate is water-drop-shaped;
(4) Preparing a liquid impermeable back sheet;
(5) Compounding a liquid-impermeable bottom layer below the absorber, compounding a diversion layer to the surface of the product treated in the step (3), and compounding a liquid-permeable surface layer into a whole; simultaneously, respectively compounding the elastic PU and the bulked non-woven fabrics which are prepared in advance on the line to the surface of the front waistline inner side liquid-permeable surface layer and the surface of the back waistline inner side liquid-permeable surface layer;
(6) On-line slitting to obtain single products.
Example two
Referring to fig. 5, fig. 6 and the first embodiment, unlike the implementation of the present embodiment, the flow guiding groove is U-shaped, the lateral width of the flow guiding groove is 8mm, the U-shaped flow guiding groove includes two first flow guiding grooves 6 and second flow guiding grooves 7 distributed along the longitudinal direction, and a third flow guiding groove 8 connected with the first flow guiding grooves 6 and the second flow guiding grooves 7, the space between the first flow guiding grooves 6 and the second flow guiding grooves 7 is 30mm, the U-shaped flow guiding groove penetrates through the whole absorber and is located at the U-shaped flow guiding groove, the liquid permeable surface layer is fixedly connected with the liquid impermeable bottom layer, the surface of the U-shaped flow guiding groove is provided with a water repellent pattern structure through a printing roller, the area distributed by the U-shaped flow guiding groove has a hydrophobic effect through the surface of the hydrophobic material, the liquid is guided into the absorber more quickly, the liquid is guided to be distributed into each area of the absorber, and the whole utilization rate of the absorber is improved. When the embossing roller is used for rolling the hydrophobic material, the embossing roller has a certain temperature, and in the embodiment, the temperature of the embossing roller is 1500 ℃, and the liquid-permeable surface layer and the liquid-impermeable bottom layer at the position of the diversion trench are fixedly bonded through hot pressing.
The preparation method of the disposable absorbent article with good flow guiding effect in this embodiment is different from that in the first embodiment in that: the structure of the baffle plate in the mold cavity for molding the absorbent core is different from that of the first embodiment, and the baffle plate of the first embodiment is of a U-shaped structure, so that the baffle plate of the U-shaped structure can be used for obtaining the diversion trench of the U-shaped structure.
Example III
Referring to fig. 7 and the first embodiment, unlike the first embodiment, the flow guiding groove of the present embodiment is composed of a plurality of diamond-shaped small flow guiding grooves a, the small flow guiding grooves a are distributed on the absorber at intervals, the distance between the small flow guiding grooves a is 8mm, the absorber is located in the area surrounded by the diamond and outside the area, and the diamond-shaped flow guiding groove is itself. Other technical solutions are the same as in the first embodiment. Correspondingly, in the preparation method, the structure of the baffle plate is also different from that of the first embodiment, and specifically, the structure of the baffle plate is the same as that of the corresponding diamond small bulge formed by connecting the plurality of diamond small diversion trenches.
Example IV
Referring to fig. 8 and the third embodiment, the diversion trench of the present embodiment is composed of a plurality of square small diversion trenches b, the distance between the square small diversion trenches b is 7mm, and other technical schemes are the same as those of the third embodiment. Correspondingly, in the preparation method, the structure of the baffle plate is similar to that of square small protrusions corresponding to the diversion trenches.
Example five
Referring to fig. 9 and embodiment one, unlike embodiment one, the diversion trench of this embodiment is a dumbbell structure c, and in the preparation method, the structure of the baffle plate is a corresponding dumbbell-shaped protrusion, and other schemes are the same as embodiment one.
Example six
Referring to fig. 10 and the first embodiment, unlike the first embodiment, the diversion trench of the present utility model is a diversion trench d with a hollowed trapezoid structure at the upper and lower parts, and correspondingly, in the preparation method, the baffle plate is a protruding structure corresponding to the diversion trench d, and other schemes are the same as the first embodiment.
In addition, the diversion trench can be provided with a plurality of cross nodes on the absorber, so that the liquid diffusion performance is further improved.
Example seven
Referring to fig. 11, compared with the first embodiment, the flow guide grooves of the absorber of the present utility model are two straight strip-shaped flow guide grooves 21', the structure of the set of press-fit rollers adopted includes an upper convex roller 16 and a lower smooth roller 17, the circumferential surface of the upper convex roller 16 is provided with a bump 18, the width of the straight strip-shaped flow guide grooves 21' is 8-30mm, the lateral spacing between the flow guide grooves is 20-30mm, so that the product with higher diffusion speed, larger diffusion area and higher core strength can be obtained, specifically, the width of the flow guide grooves of the present embodiment is 8mm, and the lateral spacing between the flow guide grooves is 25mm. Product performances with diversion trenches of different widths and different intervals are detected, and the results are shown in the following table:
the detection results of the schemes 1-4 show that the width of the diversion trench is fixed to be 8mm, the absorption speed and the rewet amount of the product with the distance of 15-30mm between the diversion trenches are not changed greatly, and the diffusion areas of the products are large and are not different greatly.
Scheme 5-7 shows that when the widths of the diversion trenches are all 8mm, the absorption speed of the product becomes slow and the diffusion area of the product becomes small along with the increase of the distance between the diversion trenches.
Comparing the schemes 1-7 with the scheme 8, it can be found that the product without the diversion trench has slower absorption speed, larger rewet amount and smaller diffusion area, so that the diversion trench can improve the absorption speed of the product, reduce the rewet amount of the product and improve the diffusion area of the product.
And moreover, the detection of the strength can show that when the widths of the diversion trenches are the same and the distance between the diversion trenches is lower than 20mm, the strength of the absorption core body of the product is poor, the distance between the diversion trenches is greater than 20mm, and the strength of the absorption core body is good.
Example eight
Referring to embodiment one and fig. 12, compared with embodiment one, in this embodiment, a water-repellent non-woven fabric 4 is disposed on the surface of the diversion trench, and a plurality of through holes (not shown in the figure) are further formed on the surface of the water-repellent non-woven fabric 4, and in the preparation process, the water-repellent non-woven fabric is attached to the absorbent core after the absorbent core is released onto the non-woven fabric of the bearing layer, and other schemes are the same as embodiment one.
Example nine
Referring to embodiment one, fig. 13 and fig. 14, the structure of the flow guiding groove 21A of the present embodiment is different from that of embodiment one, the bottom of the flow guiding groove 21A of the present embodiment has hemispherical indentations uniformly and continuously distributed, and the cross section of the flow guiding groove 21A in the thickness direction gradually becomes smaller from top to bottom, so that the liquid can be quickly guided to other parts of the absorber through the hemispherical indentations when passing through the flow guiding groove 21A, and further quick flow guiding and quick absorption are realized.
In terms of the preparation method, the preparation steps of this example are:
the preparation method of the disposable absorbent article with good flow guiding effect comprises the preparation process of preparing a liquid-permeable surface layer, preparing an absorber, preparing a liquid-impermeable bottom layer, compounding the liquid-permeable surface layer, the absorber and the liquid-impermeable bottom layer into a whole and cutting the liquid-permeable surface layer, the absorber and the liquid-impermeable bottom layer into single products on line, wherein the preparation process comprises the following steps of: (1) After the cotton core is molded in a mold wheel, demolding and transferring to a carrying layer for on-line transmission; (2) primary grooving treatment: cutting a groove with a specific shape on the cotton core through a cutter roller device, adsorbing the cut cotton core away, and spraying hot melt adhesive to solidify the groove for preliminary molding; specifically, referring to fig. 3, the structure of the cutter roller device is the same as that of the pressing roller in the first embodiment, and the cutter roller device includes a roller body, in which cutters 15 arranged in a water-drop shape are arranged at intervals along the circumferential direction of the roller body, and a flat roller 14 matched with the roller body, and a negative pressure adsorption device (not shown in the figure) for adsorbing the excised cotton core is arranged on the cutter roller device, and the specific structure of the negative pressure adsorption device is known in the market and is not repeated herein; (3) secondary grooving treatment: the cotton core processed in the step (2) is conveyed to a secondary grooving processing assembly line on line, an arc-shaped cutter device is arranged on the secondary grooving processing assembly line and comprises a fixing frame 16A, a connecting rod 17A and an arc-shaped blade 18A, a guide rail 19A arranged along the width direction of the cotton core is arranged on the lower surface of the fixing frame 16A, the arc-shaped blade 18A is rotatably arranged on the guide rail 19A through the connecting rod 17A, the connecting rod 19A is slidably arranged on the fixing frame 16A, the bottom of the cotton core is cut through the rotation of the arc-shaped blade, a diversion trench of a hemispherical structure is cut out, and hot melt adhesive for shaping the diversion trench is synchronously sprayed.
The absorber of this embodiment obtains the recess that is the water droplet type through the grooving process of first time, obtains the guiding gutter structure that the bottom surface is the hemisphere type through the grooving process of second time.
According to the preparation method of the other conception provided by the embodiment, a groove with a specific shape can be obtained by adopting a twice grooving mode, the bottom surface of the groove is arc-shaped, and the liquid diffusion speed can be further improved.
While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (10)
1. The disposable absorbent article with good flow guiding effect comprises an absorbent body, wherein the absorbent body is provided with a front waistline and a rear waistline, the absorbent body comprises a liquid permeable surface layer, an absorbent body and a liquid impermeable bottom layer which are sequentially laminated from top to bottom, the absorbent body is defined to have a longitudinal direction along the length direction and a transverse direction along the width direction, and magic tapes are arranged on the two transverse sides of the rear waistline.
2. The disposable absorbent article of claim 1 having improved fluid-directing properties, wherein: the bottom surface of the liquid-permeable surface layer is coated with skin-care antibacterial material at the position corresponding to the diversion trench.
3. A disposable absorbent article having improved fluid-directing properties as defined in claim 2, wherein: the guide grooves are two strip-shaped guide grooves which extend longitudinally respectively, and the transverse distance between the strip-shaped guide grooves is 20-30mm.
4. The disposable absorbent article of claim 1 having improved fluid-directing properties, wherein: the cross section area of the diversion trench in the thickness direction gradually increases from top to bottom.
5. The disposable absorbent article of claim 1 having improved fluid-directing properties, wherein: the skin care layer is an elastic PU layer or a bulked non-woven fabric layer, and the leakage-proof layer is a bulked non-woven fabric layer.
6. The disposable absorbent article of claim 1 having improved fluid-directing properties, wherein: the surface of the diversion trench is provided with a water-repellent structure layer, the water-repellent structure layer is provided with a plurality of through holes, and the water-repellent structure layer is a water-repellent non-woven fabric or a water-repellent pattern layer.
7. The disposable absorbent article of claim 1 having improved fluid-directing properties, wherein: when the depth of the diversion trench is equal to the thickness of the absorber, the liquid-permeable surface layer and the liquid-impermeable bottom layer which are positioned at the diversion trench are fixedly connected through ultrasonic waves.
8. The disposable absorbent article of claim 1 having improved fluid-directing properties, wherein: when the depth of the diversion trench is smaller than the thickness of the absorber, the liquid-permeable surface layer positioned at the diversion trench is fixed with the diversion trench in a mode of glue spraying and hot pressing.
9. The disposable absorbent article of claim 1 having improved fluid-directing properties, wherein: the diversion trenches are U-shaped, and the shortest distance between the transverse areas where the diversion trenches are distributed is 10mm-30mm.
10. The disposable absorbent article of claim 1 having improved fluid-directing properties, wherein: the guide grooves consist of a plurality of diamond-shaped small guide grooves, the small guide grooves are distributed on the absorber at intervals, and the distance between the small guide grooves is larger than 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222820302.6U CN219148228U (en) | 2022-10-25 | 2022-10-25 | Disposable absorption article with good flow guiding effect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222820302.6U CN219148228U (en) | 2022-10-25 | 2022-10-25 | Disposable absorption article with good flow guiding effect |
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| CN219148228U true CN219148228U (en) | 2023-06-09 |
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| CN202222820302.6U Active CN219148228U (en) | 2022-10-25 | 2022-10-25 | Disposable absorption article with good flow guiding effect |
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