CN211863130U - Ultrathin disposable 3D absorption article - Google Patents

Abstract

The utility model relates to the field of disposable sanitary products, in particular to a 3D ultrathin disposable absorbing product, which mainly solves the problems of poor comfort and poor using effect of a core body in the prior art, and comprises a core body, wherein the core body comprises a first absorbing layer, a first macromolecule water-absorbent resin layer, a second absorbing layer, a second macromolecule water-absorbent resin layer, a third absorbing layer, a third macromolecule water-absorbent resin layer and a fourth absorbing layer, the second macromolecule water-absorbent resin layer comprises a plurality of first units, the first units are arranged at intervals, the third absorbing layer covers the second macromolecule water-absorbent resin layer, the concave part at each first unit interval is adhered with the second absorbing layer through core glue to form an accommodating area, the third macromolecule water-absorbent resin layer comprises a plurality of second units, each second unit is respectively arranged in the accommodating area, and the fourth absorbing layer covers the third macromolecule water-absorbent resin layer, and is bonded with the third absorption layer of the corresponding area of the first unit through the core glue.

Description

Ultrathin disposable 3D absorption article

Technical Field

The utility model relates to a disposable hygienic articles field especially relates to an ultra-thin disposable absorption articles for use of 3D.

Background

The disposable absorption article comprises a liquid-permeable surface layer, an absorption core and a liquid-impermeable bottom layer which are sequentially laminated from top to bottom, wherein the absorption core has the function of absorbing and keeping human body excreta. The absorbent core is mostly made of absorbent materials such as wood pulp, fluff pulp, etc. It will reach better water absorption performance and need set up thicker size, influence the gas permeability and the comfort level of product greatly to absorb the easy caking of sandwich layer after absorbing liquid, the absorption fault appears, thereby influence the timely absorption of urine. Even if the water-absorbing materials such as wood pulp, fluff pulp and paper pulp are mixed with the high molecular water-absorbing resin, the high molecular water-absorbing resin is difficult to be fixed with the paper pulp, so that the distribution is uneven, and the water absorption is influenced.

Chinese patent application No.: 201820933551.7 discloses a calabash shape panty-shape diapers core and panty-shape diapers, the core includes last absorbed layer, lower absorbed layer and the polymer resin layer that absorbs water between the two, and the polymer resin layer that absorbs water is cut apart into a plurality of unit by the core is glued, form a plurality of guiding gutter between a plurality of unit. The diaper core body is free of fluffy cloth, and polymer is coated and sprayed in a three-dimensional mode by using a 3D printing principle, so that the thickness of the core body is reduced while the performance is guaranteed to be unchanged, and the diaper is lighter and thinner; the polymer has good water locking performance, is soft and does not lump after absorbing urine, and has the effects of large absorption capacity, high absorption speed and strong water locking; however, the water absorption expansion rate of the high polymer water-absorbent resin is several times of the water absorption expansion rate of the high polymer water-absorbent resin, the high polymer water-absorbent resin layer is wrapped by the upper absorption layer and the lower absorption layer to form a unit, the unit is expanded after the high polymer water-absorbent resin layer absorbs water to occupy the diversion trench, so that the diversion trench is stretched by the upper absorption layer and the lower absorption layer bonded by the core body glue, the high polymer water-absorbent resin is displaced to cause the reduction of comfort, meanwhile, the diversion layer formed by the relative positions of the upper surface and the lower surface of the core body is easy to seep down into the diversion trench on the lower surface after urine enters the diversion trench on the upper surface and flows along the area formed by the diversion trench and the liquid-tight surface layer, after the high polymer water-absorbent resin on the periphery of the diversion trench absorbs a certain amount of urine, the absorption speed of the high polymer water-.

SUMMERY OF THE UTILITY MODEL

Therefore, to foretell problem, the utility model provides an ultra-thin disposable absorption articles for use of 3D, it has mainly solved the travelling comfort and the poor problem of result of use of core among the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

A3D ultrathin disposable absorption article comprises a liquid-permeable surface layer, a liquid-impermeable bottom layer and a core body arranged between the liquid-permeable surface layer and the liquid-impermeable bottom layer, wherein the extension of the core body along the length direction is a longitudinal direction, the extension of the core body along the width direction is a transverse direction, the core body sequentially comprises a first absorption layer, a first macromolecular water-absorbent resin layer, a second absorption layer, a second macromolecular water-absorbent resin layer, a third absorption layer, a third macromolecular water-absorbent resin layer and a fourth absorption layer from bottom to top, the first macromolecular water-absorbent resin layer sequentially comprises a first part, a second part and a third part along the transverse direction, the first part, the second part and the third part are arranged at intervals, the first absorption layer is inwards concaved along the intervals to form a first diversion trench through core glue and the second absorption layer in a bonding mode, the second macromolecular water-absorbent resin layer comprises a plurality of first units arranged side by side along the longitudinal direction, each first unit interval sets up, the third absorbed layer covers on the second polymer absorbent resin layer, and is located that each first unit interval department is recessed to glue through the core and form the holding district with the bonding of second absorbed layer, the third polymer absorbent resin layer includes a plurality of second unit that sets up side by side along longitudinal direction, each the second unit sets up respectively in the holding district, the fourth absorbed layer covers on the third polymer absorbent resin layer, and glues the third absorbed layer bonding with the corresponding region of first unit through the core.

Further, the longitudinal width dimension of each second unit is smaller than the longitudinal width dimension of each accommodating area.

Furthermore, a plurality of second diversion trenches are arranged in the longitudinal direction of the core body.

Furthermore, the second guiding gutter includes at least two guiding gutters that distribute along the longitudinal axis interval of core body to and use this longitudinal axis as the arc guiding gutter that the left and right sides of symmetry distribute.

Furthermore, the core body also comprises a lower absorption core layer which is arranged at the lower side of the first absorption layer and is bonded with the first absorption layer, and the transverse width of the lower absorption core layer is 65-300 mm.

By adopting the technical scheme, the beneficial effects of the utility model are that: the 3D ultrathin disposable absorption article is characterized in that a first high-molecular water-absorbing resin layer, a second high-molecular water-absorbing resin layer and a third high-molecular water-absorbing resin layer are manufactured by three-dimensionally spraying high-molecular water-absorbing resin materials according to a 3D printing principle, the positions of the high-molecular materials can be effectively fixed, the outlines of a manufactured first diversion trench and a manufactured accommodating area are clear, the diversion effect of the first diversion trench is improved, a second unit can be well fixed when being sprayed in the accommodating area, the longitudinal width size of the formed second unit is smaller than the longitudinal width size of each accommodating area, when the article is actually used, the first unit and the second unit are designed by coating structures of the second absorption layer, the third absorption layer and the fourth absorption layer, the first unit and the second unit are stable in structure, a fixing effect can be well formed, and the high-molecular water-absorbing resin materials are prevented from shifting after water absorption expansion, the longitudinal width dimension of the second unit is smaller than that of each containing area, so that the second unit has a certain buffer space, the stability of the absorption core body is improved, a transverse diversion space is formed at the same time, the urine infiltration is facilitated, the diversion diffusion is realized through the urine infiltration space, the uniformity is good, the comfort is improved, meanwhile, the absorption effect can be further improved by the arranged first high-molecular water-absorbent resin layer in the urine infiltration, the absorption capacity of the core body is improved, the external leakage is reduced, the diversion effect can be provided by the arranged first diversion grooves, the gas circulation is kept at the same time, the air permeability is improved, the use comfort is high, and the use effect is good; furthermore, the second flow guide groove is combined with the first flow guide groove and the containing area, so that urine can quickly infiltrate downwards and diffuse, the diffusion length is increased, the transmission speed of the urine on the core body is increased, the urine is uniformly diffused, the absorption efficiency of the core body is improved, and the use effect is further improved; the lower layer absorption core layer is arranged to increase the absorption speed and the absorption capacity of the core body.

Drawings

Fig. 1 is a schematic top view of a first embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view taken at A-A in FIG. 1;

FIG. 3 is a schematic cross-sectional view at B-B in FIG. 1;

fig. 4 is a schematic structural diagram of a second embodiment of the present invention.

Detailed Description

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

The embodiment of the utility model provides a do:

the first embodiment is as follows:

referring to fig. 1, 2 and 3, a 3D ultrathin disposable absorbent article includes a liquid-permeable surface layer, a liquid-impermeable bottom layer and a core body 1 disposed therebetween, wherein a longitudinal direction extending along a length direction of the core body 1 is defined, and a transverse direction extending along a width direction of the core body 1 is defined, the core body 1 sequentially includes, from bottom to top, a first absorbent layer 11, a first polymer water-absorbent resin layer 12, a second absorbent layer 13, a second polymer water-absorbent resin layer 14, a third absorbent layer 15, a third polymer water-absorbent resin layer 16 and a fourth absorbent layer 17, the first polymer water-absorbent resin layer 12 sequentially includes, along the transverse direction, a first portion 121, a second portion 122 and a third portion 123, the first portion 121, the second portion 122 and the third portion 123 are disposed at intervals, the first absorbent layer 11 is recessed along the intervals and is bonded with the second absorbent layer 13 through a core adhesive 2 to form a first diversion trench 3, the second high molecular water absorbent resin layer 14 comprises five first units 141 arranged side by side along the longitudinal direction, each first unit 141 is arranged at intervals, the third absorption layer 15 covers the second high molecular water absorbent resin layer 14, the interval of each first unit 141 is recessed, the core glue 4 and the second absorption layer 13 are bonded to form an accommodating area 5, the third high molecular water absorbent resin layer 16 comprises four second units 161 arranged side by side along the longitudinal direction, each second unit 161 is arranged in the accommodating area 5, the longitudinal width of each second unit 161 is smaller than that of each accommodating area 5, the distance between the two longitudinal side surfaces of each second unit 161 and the two longitudinal side surfaces of each accommodating area 5 is 3mm, the longitudinal width of each first unit 141 is smaller than that of each second unit 161, and the fourth absorption layer 17 covers the third high molecular water absorbent resin layer 16, and the core body glue 6 is bonded with the third absorption layer 15 in the corresponding area of the first unit 141, three second diversion trenches 7 are arranged in the longitudinal direction of the core body 1, and each second diversion trench 7 comprises two diversion trenches 71 which are distributed at intervals along the longitudinal central axis of the core body 1 and arc diversion trenches 72 which are distributed on the left side and the right side and take the longitudinal central axis as a symmetrical line.

The first absorption layer 11, the second absorption layer 13, the third absorption layer 15 and the fourth absorption layer 17 are all hydrophilic non-woven fabrics or dust-free paper; the first high molecular water-absorbent resin layer 12, the second high molecular water-absorbent resin layer 14 and the third high molecular water-absorbent resin layer 16 are all formed by three-dimensionally spraying high molecular water-absorbent resin materials by utilizing a 3D printing principle; the second diversion trenches 7 are formed by hot pressing through a press roller and a bottom roller.

Example two:

referring to the first embodiment and fig. 4, the second embodiment is further improved on the basis of the first embodiment, and the technical features of the second embodiment are different from the first embodiment: the transverse width size of first absorption layer is 80mm ~ 300mm, and the preferred 120mm that is, core body 1 is still including locating first absorption layer 11 downside and absorbing sandwich layer 20 with first absorption layer 11 adhesive lower floor, the transverse width size of lower floor absorption sandwich layer 20 is 65mm ~ 300mm, and the preferred 120mm that is, lower floor absorption sandwich layer 20 is formed by fluff pulp and sap fibre mixture to equal length goods are cut behind its upper surface and lower surface composite non-woven fabrics, and lower floor absorption sandwich layer 20 through the setting has increased the absorption rate, diffusion and the absorbed dose of core body 1.

The lower absorbent core layer 20 may also be formed by mixing fluff pulp, sap particles and sap fibers, and the nonwoven fabric is compounded on the upper surface and the lower surface of the lower absorbent core layer and then cut into equal-length products; or is formed by mixing fluff pulp and sap fiber and then coating the fluff pulp and the sap fiber by non-woven fabrics.

The non-woven fabric includes hot air non-woven fabric, spun-bonded non-woven fabric, etc., and may be toilet paper, dust-free paper, spunlace fabric, perforated film, etc.

The utility model discloses a working method is: the 3D ultrathin disposable absorption article is characterized in that a first high-molecular water-absorbent resin layer 12, a second high-molecular water-absorbent resin layer 14 and a third high-molecular water-absorbent resin layer 16 are manufactured by three-dimensionally spraying high-molecular water-absorbent resin materials according to a 3D printing principle, the positions of the high-molecular materials can be effectively fixed, the outlines of a manufactured first diversion trench 3 and a manufactured accommodating area 5 are clear, the diversion effect of the first diversion trench 3 is improved, the second units 161 can be better fixed when being sprayed in the accommodating area 5, the longitudinal width size of each formed second unit 161 is smaller than that of each accommodating area 5, and when the article is actually used, the first unit 141 and the second unit 161 are stable in structure and can better form a fixing effect through the coating structure design of the second absorption layer 13, the third absorption layer 15 and the fourth absorption layer 17, the displacement of the high-molecular water-absorbent resin material after water absorption expansion is prevented, and the longitudinal width dimension of the second unit 161 is smaller than that of each accommodating area 5, so that the second unit has a certain buffer space, the stability of the core body 1 is improved, a transverse flow guide space is formed at the same time, the downward seepage of urine is facilitated, the flow guide diffusion is facilitated, the uniformity is good, the comfort is improved, the absorption effect can be further improved in the downward seepage of urine by the aid of the first high-molecular water-absorbent resin layer 12, the absorption capacity of the core body 1 is improved, the outward leakage is reduced, the flow guide groove 3 can provide the flow guide effect, the gas circulation is kept, the air permeability is improved, the use comfort is high, and the use effect is good; the second guiding gutter 7 that sets up combines together with first guiding gutter 3 and holding district 5 for the urine can ooze down fast and spread, improves diffusion length, has increased the transmission rate of urine at the core body, makes the urine diffusion even, thereby improves the absorption efficiency of core body 1, thereby further improves the result of use.

While the invention 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 detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (5)

1. A3D ultra-thin disposable absorption article characterized in that: the core body sequentially comprises a first absorption layer, a first high-molecular water-absorbent resin layer, a second absorption layer, a second high-molecular water-absorbent resin layer, a third absorption layer, a third high-molecular water-absorbent resin layer and a fourth absorption layer from bottom to top, the first high-molecular water-absorbent resin layer sequentially comprises a first part, a second part and a third part along the transverse direction, the first part, the second part and the third part are arranged at intervals, the first absorption layer is inwards concaved along the intervals and is bonded with the second absorption layer through core glue to form a first diversion trench, the second high-molecular water-absorbent resin layer comprises a plurality of first units which are arranged side by side along the longitudinal direction, and each first unit is arranged at intervals, the third absorbed layer covers on the second polymer absorbent resin layer, and is located that each first unit interval is recessed to glue through the core and form the holding district with the bonding of second absorbed layer, the third polymer absorbent resin layer includes along a plurality of second unit that longitudinal direction set up side by side, each the second unit sets up respectively in the holding district, the fourth absorbed layer covers on the third polymer absorbent resin layer, and glues the third absorbed layer bonding with the corresponding region of first unit through the core.

2. The 3D ultra-thin disposable absorbent article of claim 1, wherein: the longitudinal width dimension of each second unit is smaller than that of each accommodating area.

3. The 3D ultra-thin disposable absorbent article of claim 1 or 2 characterized in that: the core body is provided with a plurality of second diversion trenches in the longitudinal direction.

4. The 3D ultra-thin disposable absorbent article of claim 3 characterized in that: the second diversion trench comprises at least two diversion trenches which are distributed at intervals along the longitudinal central axis of the core body, and arc diversion trenches which are distributed on the left side and the right side and take the longitudinal central axis as a symmetrical line.

5. The 3D ultra-thin disposable absorbent article of claim 4 wherein: the core body further comprises a lower absorption core layer which is arranged on the lower side of the first absorption layer and is bonded with the first absorption layer, and the transverse width of the lower absorption core layer is 65-300 mm.

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