CN202288650U - Absorption product and absorption core thereof - Google Patents

Absorption product and absorption core thereof Download PDF

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Publication number
CN202288650U
CN202288650U CN2011203593142U CN201120359314U CN202288650U CN 202288650 U CN202288650 U CN 202288650U CN 2011203593142 U CN2011203593142 U CN 2011203593142U CN 201120359314 U CN201120359314 U CN 201120359314U CN 202288650 U CN202288650 U CN 202288650U
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China
Prior art keywords
absorption
absorptive core
gel material
intermediate layer
core
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Expired - Lifetime
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CN2011203593142U
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Chinese (zh)
Inventor
张旺业
胡文军
邓六飞
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Burghardt (shanghai) Electric Equipment Co Ltd
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Burghardt (shanghai) Electric Equipment Co Ltd
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Priority to CN2011203593142U priority Critical patent/CN202288650U/en
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Publication of CN202288650U publication Critical patent/CN202288650U/en
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Abstract

The utility model relates to an absorption core used by an absorption product, and the absorption product manufactured by the absorption core. The absorption core is of a three-layer structure formed by one or more kinds of fiber absorption materials and a super bibulous gel material. The one or more kinds of fiber absorption materials is arranged at an upper layer of the absorption core, the one or more kinds of fiber absorption materials is arranged at a lower layer of the absorption core, and a mixture of the one or more kinds of fiber absorption materials and the super bibulous gel material is arranged at a middle layer of the absorption core, wherein the density of the upper layer is smaller than that of the middle layer and the lower layer. The disposable absorption product made from the absorption core has the advantages of high liquid absorption speed and high infiltration speed, avoids the blockage of colloid of the super bibulous gel material, can fully play a role of the super bibulous gel material, saves the cost on the material, and avoids the problems of leakage of the super bibulous gel material and the like.

Description

Absorbing products and absorptive core thereof
Technical field
This utility model relates to disposable personal hygiene article field, relates in particular to a kind of absorbing products and absorptive core thereof.
Background technology
At present, known absorbing products such as sanitary towel, diaper and incontinence pad etc. have usually to be called with body skin and contact, and make the top layer of fluid seepage; Towards wearer's garment side, the bottom of the gas-permeable, liquid-impermeable that prevention liquid spills; And, be used for absorbing and keeping the absorptive core formation of liquid between body top layer and bottom.In use, the liquid that leaves wearer's body sees through the top layer and gets into absorbing products, and is stored in the absorptive core, and bottom prevents that any excess liq from leaving absorbing products, prevents the clothes of making dirty.
The absorptive core of common absorbing products generally includes one or more cellulosic absorbing materials, and said cellulosic absorbing material comprises cellulose fibre (being generally wood pulp cellulose), synthetic fibers or their combination.Comprise in the absorptive core that superabsorbent material is the fine dispersion form usually, for example particle form or filamentous form, absorption and the retention characteristic of the absorption gel rubber material of fine dispersion to improve them.The superabsorbent gels material that is used for absorbing products generally includes water-insoluble, crosslinked absorbable polymer water-swellable, that form hydrogel, and polymer can absorb a large amount of liquid and can under certain pressure, keep absorbed liquid.Absorbent gelling material can different hybrid modes be incorporated in the absorptive core.For example, the absorption gel rubber material and one or more cellulosic absorbing material uniform mixing that are grain shape generally form the 10%-90% that absorbent gel material accounts for whole absorptive core weight together.Adopt ultra absorbent gel material and cellulosic absorbing material uniform mixing molding mode; Infiltration rate to accelerating absorptive core improves a lot; And cellulosic absorbing material and ultra absorbent gel material mix homogeneously, should not cause the gel blockage of ultra absorbent material, so-called gel blockage; Promptly, ultra absorbent gel material expands rapidly after absorbing liquid; Pressurized can cause absorbing gel rubber material and block cellulosic absorbing material diffusion slit during the too small or undercapacity of granule, and cause liquid is difficult for diffusion in absorbent cores, perhaps produce the phenomenon that diffusibility is not good and permeating speed is slow excessively.But in forming process; Because the upper surface of absorptive core and lower surface may exist by a spot of ultra absorbent gel material; Transport in the process at the molding absorptive core; Be prone to cause ultra absorbent gel material to run off, and, make the upper and lower surfaces of absorptive core also possibly have ultra absorbent gel material again through the top layer of liquid permeability and this absorptive core of primer parcel of gas-permeable, liquid-impermeable; Particularly granular ultra absorbent gel material is prone to leakage phenomenon, granular ultra absorbent gel material even can puncture primer.
In addition; Ultra absorbent gel material and cellulosic absorbing material often adopt another kind of common " sandwich " hybrid mode molding; Be that the cellulosic absorbing material is contained in the upper and lower, ultra absorbent gel material is contained in the intermediate layer, such mixed-forming mode; Can avoid the particulate waste of ultra absorbent gel material in the production process, also can keep the surperficial dry and comfortable property after absorptive core absorbs water.But be prone to cause ultra absorbent gel material suction back to produce the gel adhesion, promptly produce the gel blockage phenomenon, and cause phenomenon such as skewness, even cause the interformational sliding effect, absorbing products is had a negative impact.
The utility model content
The purpose of this utility model is in order to address the above problem, a kind of absorbing products and absorptive core thereof to be provided, in the hope of avoid absorbing products the gel blockage phenomenon take place, and reduce it to the harmful effect of absorptive core with the absorbing products generation.
The technical scheme that this utility model is taked is:
A kind of absorptive core; Comprise upper strata, intermediate layer and lower floor, said the upper and lower comprise one or more fibrous materials, and said intermediate layer comprises one or more fibrous materials and ultra absorbent gel material mixture; It is characterized in that the density on said upper strata is less than the density of said intermediate layer and lower floor.
Further, the density on said upper strata is 50 kilograms every cubic metre to 200 kilograms every cubic metre; The density of said intermediate layer and lower floor is every cubic metre to 400 kilograms every cubic metre of double centner.
Further, said upper strata accounts for 5% to 30% of whole absorptive core weight; Said intermediate layer accounts for 40% to 90% of whole absorptive core weight; Said lower floor accounts for 5% to 30% of whole absorptive core weight.
Further, said ultra absorbent gel material accounts for 10% to 90% of whole absorptive core weight.
Further, the thickness on said upper strata is less than the thickness in intermediate layer, and the thickness of said lower floor is less than the thickness in intermediate layer.
The absorbing products that uses above-mentioned absorptive core to process.
The beneficial effect of this utility model absorbing products and absorptive core thereof is:
Adopt upper strata density less than the absorptive core of intermediate layer and lower floor's density and the absorbing products of processing thereof; Liquid Absorption, down the infiltration rate degree is fast; Can not cause ultra absorbent gel material " colloid obstruction "; And can bring into play the effect of ultra absorbent gel material fully, can not cause the appearance of the problems such as leakage of the ultra absorbent gel material of graininess, and save the materials cost.
Description of drawings
Accompanying drawing 1 is the layer structure sketch map of this utility model absorptive core;
Accompanying drawing 2 is layer structure sketch maps of first embodiment of this utility model absorptive core;
Accompanying drawing 3 is layer structure sketch maps of second embodiment of this utility model absorptive core;
Accompanying drawing 4 is structural representations of this utility model absorbing products;
Accompanying drawing 5 is A-A cutaway views in the accompanying drawing 4.
Label in the accompanying drawing is respectively:
1. absorptive core; 2. upper strata; 3. intermediate layer;
4. lower floor; 101. cellulose fluff pulp; 102. ultra water absorbent gel granular materials; 103. ultra water absorbent gel fibrous material; 8. disposable diaper; 10. top layer;
11. bottom; 13. conducting shell; 130. flexible member;
131. flexible member; 14. elastic waistline element; 15. retaining element;
16. frontal waist plaster.
The specific embodiment
Elaborate below in conjunction with the specific embodiment of accompanying drawing to this utility model absorbing products and absorptive core thereof.
Referring to accompanying drawing 1; Absorptive core 1 comprise upper strata 2, lower floor 4 and place upper strata 2 and lower floor 4 between intermediate layer 3; It 2 is made up of one or more cellulosic absorbing materials with lower floor 4 at the middle and upper levels, the preferred cellulose fluff pulp fibers, and upper strata 2 and lower floor 4 can be made up of identical or different cellulose fluff pulp; Intermediate layer 3 is mixed by one or more cellulosic absorbing materials and ultra absorbent gel material, the preferred fluff pulp fibers cellulose fiber of cellulosic absorbing material.Above-mentioned fluff pulp fibers element can be untreated Time of Fluff Slurry, partly handle Time of Fluff Slurry and handle Time of Fluff Slurry.Intermediate layer 3 is used for absorbing and storage liquid; Therefore; The thickness in intermediate layer 3 is bigger than the gauge of upper strata 2 and lower floor 4, and the density on upper strata 2 is less than the density of intermediate layer 3 and lower floor 4, and the density on upper strata 2 is arranged between 50 kilograms every cubic metre to 200 kilograms every cubic metre; The density of intermediate layer 3 and lower floor 4 is arranged on every cubic metre to 400 kilograms every cubic metre of double centner; Formed a density gradient that helps Liquid Absorption like this, thereby infiltration rate that can accelerating liquid reduces the risk of absorbing products side leakage.
Referring to accompanying drawing 2; Accompanying drawing 2 is first embodiment of this utility model absorptive core, and the thickness of absorptive core 1 under drying regime is 1mm to 5mm, and the cellulosic absorbing material in upper strata 2 and the lower floor 4 is a fluff pulp fibers 101; Fluff pulp fibers 101 can be through chemical cellulose processed Time of Fluff Slurry such as bleaching, softnesses; Also can be undressed cellulose fluff pulp, contain cellulose fluff pulp 101 and granular ultra absorbent gel material 102 in the intermediate layer 3, both uniform mixing together; Absorptive core 1 comprises that generally weight ratio is 30% to 70% ultra water absorbent gel granular materials, and 30% to 70% cellulose fluff pulp.
Upper strata 2 is a cellulose fluff pulp 101; Weight accounts for 5% to 30% of whole absorptive core 1 dry weight; Preferred 5% to 15%, the relative intermediate layer 3 of the bulk density of cellulose fluff pulp 101 is lower with lower floor 4, and the main effect of the low-density cellulose fluff pulp on upper strata 2 is to help to absorb the liquid that comes from top layer 10; Liquid is spread rapidly, improve the utilization rate of ultra absorbent gel material; In addition; Low-density cellulose fluff pulp also has interim water-retention characteristic, when big quantity of fluid can't be absorbed by ultra absorbent gel material 102 rapidly, and temporary storage liquid when particularly second and third time absorbs; Because ultra absorbent gel material 102 is when absorbing liquid; Generally performance absorbs hysteresis quality, and the transient absorption that requires with absorbing products produces contradiction, so; The cellulose fluff pulp that the upper strata 2 of absorptive core 1 adopts low-density to pile up can be given full play to the transient absorption characteristics, is provided to the Liquid Absorption of ultra absorbent gel material certain buffer time.
Intermediate layer 3 is cellulose fluff pulp 101 and the ultra absorbent gel material 102 of graininess; Weight accounts for 40% to 90% of whole absorptive core 1 dry weight; The ultra absorbent gel material 102 of graininess applies equably and is dispersed in the middle of the cellulose fluff pulp 101; Promptly be dispersed between the fiber; The cross sectional shape of the ultra absorbent gel material 102 of graininess can be circle, triangle, tetragon, irregular polygon etc., and the weight of the cellulose fluff pulp 101 in the intermediate layer 3 accounts for 20% to 40% of whole absorptive core 1 dry weight, and the weight of ultra water absorbent gel granular materials 102 accounts for 30% to 70% of whole absorptive core 1 dry weight.Adopt cellulose fluff pulp 101 and ultra absorbent gel material 102 uniform mixing of graininess together; Can better be absorbed in liquid from absorptive core 1 upper strata 2; Fibrous Time of Fluff Slurry is distributed in intermediate layer 3, can reduces or prevent that ultra water absorbent gel granular materials 102 from absorbing the gel blockage phenomenon that produces behind the liquid, can better bring into play the absorption of ultra water absorbent gel granular materials 102, the ability of pinning liquid.
Lower floor 4 is a cellulose fluff pulp 101; Weight accounts for 5% to 30% of whole absorptive core 1 dry weight; Preferred 5% to 15%; The cellulose fluff pulp 101 that is distributed in lower floor is higher than the cellulose fluff pulp bulk density that is distributed on the upper strata 2, and one deck cellulose fluff pulp 101 is laid by lower floor 4 can bring more soft hand feeling to absorptive core, and can prevent that the ultra water absorbent gel granular materials in the intermediate layer 3 from puncturing the bottom 11 of absorbent article.
Referring to accompanying drawing 3, accompanying drawing 3 is second embodiment of this utility model absorptive core, and present embodiment and first is implemented basic identical, and difference is that intermediate layer 3 is fibrous ultra absorbent gel material 103.
Referring to accompanying drawing 4,5, the absorbing products disposable diaper 8 that accompanying drawing 4 is to use this utility model absorptive core to process launches plane graph.This disposable diaper 8 is by the ventilative top layer 10 of liquid, the bottom 11 of gas-permeable, liquid-impermeable of passing through; And (absorptive core can be vertical bar shaped, dumbbell shape etc. to place absorptive core 1 between top layer 10 and the bottom 11; What this instance was selected for use is the dumbbell shape design); On the top layer 10 with absorptive core 1 in the middle of additional infiltration conducting shell 13, place near absorptive core 1 front end (referring to that bottom 11 has a side of frontal waist plaster 16), top layer 10, bottom 11 stretch out and have exceeded the whole edge of absorptive core 1.Through methods such as binding agents, together with range upon range of bondings such as top layer 10, bottom 11, absorptive core 1, conducting shells 14.Top layer 10 can be by any material that becomes known for this purpose, like other non-woven fabrics such as hot-wind nonwoven cloth, spun-bonded non-woven fabrics, fabric hot rolled nonwoven fabrics, or composition such as plastic film material.Top layer 10 can certainly be made up of laminated material two-layer or multilamellar same material or different materials.Bottom 11 can be by the combination of plastic sheeting, non-woven fabrics and the plastic sheeting of gas-permeable, liquid-impermeable body, and the laminated material that can prevent other elastomeric material of fluid seepage.Conducting shell 13 can be hot-wind nonwoven cloth, apertured plastic films or apertured plastic film and fibroreticulate combination etc.Disposable diaper 8 also provide be applied to pretensioned state along diaper side longitudinal elasticity element 130,131, and make up the leg elastic of diaper simultaneously.Flexible member 130,131 is used for keeping the diaper lateral edges to contact more sealing with wearer's shank, to avoid occurring the slit, can leak out diaper through this slit body fluid, and effect is worn in influence.In addition, disposable diaper 8 has the left and right sides retaining element 15 of a pair of fixedly wearer waist and belly, and left and right sides retaining element 15 can be flexible and inelastic, adopts modes such as magic hook circle or adhesive tape to be fixed on above the frontal waist plaster 16 usually.In order to improve wearer's comfortableness, often at the waistline place, elastic waistline element 14 is set, adopt materials such as elastic film, elastic, foam sponge to process usually.
The above only is the preferred implementation of this utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from this utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of this utility model.

Claims (5)

1. an absorptive core comprises upper strata, intermediate layer and lower floor, it is characterized in that: the density on said upper strata is less than the density of said intermediate layer and lower floor.
2. absorptive core according to claim 1 is characterized in that: the density on said upper strata is 50 kilograms every cubic metre to 200 kilograms every cubic metre; The density of said intermediate layer and lower floor is every cubic metre to 400 kilograms every cubic metre of double centner.
3. absorptive core according to claim 1 and 2 is characterized in that: said upper strata accounts for 5% to 30% of whole absorptive core weight; Said intermediate layer accounts for 40% to 90% of whole absorptive core weight; Said lower floor accounts for 5% to 30% of whole absorptive core weight.
4. absorptive core according to claim 1 and 2 is characterized in that: the thickness on said upper strata is less than the thickness in intermediate layer, and the thickness of said lower floor is less than the thickness in intermediate layer.
5. use the absorbing products that each said absorptive core is processed in the claim 1 to 4.
CN2011203593142U 2011-09-23 2011-09-23 Absorption product and absorption core thereof Expired - Lifetime CN202288650U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203593142U CN202288650U (en) 2011-09-23 2011-09-23 Absorption product and absorption core thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203593142U CN202288650U (en) 2011-09-23 2011-09-23 Absorption product and absorption core thereof

Publications (1)

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CN202288650U true CN202288650U (en) 2012-07-04

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103110386A (en) * 2013-02-05 2013-05-22 金红叶纸业集团有限公司 Thin water absorbing material and manufacturing method thereof
CN103315856A (en) * 2013-05-28 2013-09-25 杭州可靠护理用品股份有限公司 T-shaped adult paper diaper
CN105682624A (en) * 2013-07-03 2016-06-15 瑞德科技控股有限公司. An absorbent composite, methods for making the absorbent composite, and an absorbent article employing the same
CN107080620A (en) * 2017-07-03 2017-08-22 爹地宝贝股份有限公司 The good macromolecule paper diaper of instant water absorption energy
CN109998791A (en) * 2019-04-28 2019-07-12 厦门延江新材料股份有限公司 A kind of sanitary absorbent article
CN110464547A (en) * 2019-08-20 2019-11-19 佛山南宝高盛高新材料有限公司 A kind of solid compound core body and the preparation method and application thereof

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103110386A (en) * 2013-02-05 2013-05-22 金红叶纸业集团有限公司 Thin water absorbing material and manufacturing method thereof
CN103110386B (en) * 2013-02-05 2015-12-23 金红叶纸业集团有限公司 Slim absorbent material and preparation method thereof
CN103315856A (en) * 2013-05-28 2013-09-25 杭州可靠护理用品股份有限公司 T-shaped adult paper diaper
CN105682624A (en) * 2013-07-03 2016-06-15 瑞德科技控股有限公司. An absorbent composite, methods for making the absorbent composite, and an absorbent article employing the same
CN105682624B (en) * 2013-07-03 2021-03-12 瑞德科技控股有限公司. Absorbent composites, absorbent articles employing the same, and methods and systems for making the same
CN105682624B8 (en) * 2013-07-03 2021-07-02 瑞德科技控股有限公司 Absorbent composites, absorbent articles employing the same, and methods and systems for making the same
US11090203B2 (en) 2013-07-03 2021-08-17 Dsg Technology Holdings Ltd. Absorbent composite, an absorbent article employing the same, and methods, systems, and apparatus for making the absorbent composite and/or article
CN107080620A (en) * 2017-07-03 2017-08-22 爹地宝贝股份有限公司 The good macromolecule paper diaper of instant water absorption energy
CN109998791A (en) * 2019-04-28 2019-07-12 厦门延江新材料股份有限公司 A kind of sanitary absorbent article
CN110464547A (en) * 2019-08-20 2019-11-19 佛山南宝高盛高新材料有限公司 A kind of solid compound core body and the preparation method and application thereof

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Granted publication date: 20120704

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