CN102499817A - Disposable absorption product and method for manufacturing intermediate core layer of disposable absorption product - Google Patents
Disposable absorption product and method for manufacturing intermediate core layer of disposable absorption product Download PDFInfo
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- CN102499817A CN102499817A CN2011103222024A CN201110322202A CN102499817A CN 102499817 A CN102499817 A CN 102499817A CN 2011103222024 A CN2011103222024 A CN 2011103222024A CN 201110322202 A CN201110322202 A CN 201110322202A CN 102499817 A CN102499817 A CN 102499817A
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Abstract
The invention discloses a disposable absorption product and a method for manufacturing an intermediate core layer of the disposable absorption product. In the method for manufacturing the intermediate core layer, high-water absorption granules in an absorption core layer of the intermediate core layer are arranged so as to form a plurality of laminated structures. The intermediate core layer produced by the method is provided with the laminated high-water absorption granules, and can be applied to the disposable absorption product; and the liquid is guided to flow and diffuse longitudinally by the laminated high-water absorption granules, so that an absorptive material on the lower part of an absorption core exerts an effect of absorbing liquid fully, and the utilization rate of the absorptive material is improved.
Description
Technical field
The present invention relates to disposable personal hygiene article and manufacturing equipment field thereof, relate in particular to the manufacturing approach of disposable absorbent article and middle core layer thereof.
Background technology
Existing disposable absorbent article, such as sanitary towel, diaper, urine trousers, medical bed mattress etc., but mainly comprise permeable top layer, can not the liquid permeability bottom, the middle core layer that is clipped in the middle.Wherein, middle core layer is mainly used in physiology secretions or Excretas such as absorption such as blood, urine, body fluid, and the effect of middle core layer is the fast Absorption Excreta, pins intravenous extravasation, reduces the reverse osmosis amount of liquid.
At present; Middle core layer mainly adopts hygroscopicity fibre and high water-absorption particle mixture; Its structure is mainly following three kinds: 1, hygroscopicity fibre mixes with high water-absorption particle fully; In this core, high water-absorption particle can be on the horizontal plane of core body and vertical uniform mixing in water-absorption fiber.2, sandwiched type structure; This structure is divided into three layers from the vertical of core body; It is the thin hygroscopicity fibre of one deck at the middle and upper levels, and lower floor is the slightly thick hygroscopicity fibre of one deck, and intermediary absorbent core layer is hygroscopicity fibre and the complete uniform mixing of high water-absorption particle.3, adopt suction master mode structure; This structure directly adopts a kind of absorbent article; This absorbent article is generally sandwich style, and wherein middle one deck is by meldable fibre, or the mixture of hygroscopicity fibre and PUR is fixed a large amount of high water-absorption particles; Flexible liquid permeability materials such as two-layer up and down optional fiberfill layer, paper form a kind of thin absorbent article.
More than high water-absorption particle in the middle core layer that forms of three kinds of modes all be to be evenly distributed on the horizontal plane of core body; Can expand rapidly after the high water-absorption particle suction; Therefore on middle core layer horizontal plane equally distributed high water-absorption particle can be after suction mutual extrusion; At inner one deck be difficult for the seeping water thin film of lower floor that forms of core body; Simultaneously, the gel shape material that high water-absorption particle suction back forms can hinder liquid vertically and diffusion downwards, therefore this structure caused high water-absorption particle utilization rate before and after the absorptive core not high, be prone to take place side leakage and wait until problem.
Summary of the invention
First purpose of the present invention is in order to address the above problem, disposable absorbent article to be provided, make the vertically downwards diffusion of liquid along absorptive core in the hope of reaching, improving the utilization rate of high water-absorption particle.
Second purpose of the present invention provides the manufacturing approach of the middle core layer of disposable absorbent article, in the hope of producing the absorbent article that meets first purpose.
For realizing first purpose, the technical scheme that the present invention takes is:
A kind of disposable absorbent article; Comprise liquid permeability top layer, middle core layer and opaque liquid bottom; Core layer comprises core body upper strata, absorbent core layer and core body lower floor in the middle of said, and said absorbent core layer comprises high water-absorption particle and corpus fibrosum, it is characterized in that; Said high water-absorption particle is vertical or to favour said opaque liquid bottom arranged evenly in said absorbent core layer with sheet form, other part of absorbent core layer said corpus fibrosum of filling a vacancy.
Further, the quantity of the high water-absorption particle of said lamellar is 5 to 20.
Further, the said high water-absorption particle percentage by weight that accounts for said absorbent core layer is for more than or equal to 20%.
Further, to account for the percentage by weight of said absorbent core layer be 20% to 80% to said high water-absorption particle
Further, said core body upper strata is the mixture of corpus fibrosum or corpus fibrosum and high water-absorption particle.
Further, the thickness on said core body upper strata is 0.5 to 5mm, and the thickness of said absorbent core layer is 1 to 10mm, and the thickness of said core body lower floor is 1 to 10mm.
Further, the thickness on said core body upper strata is 0.5 to 2mm, and the thickness of said absorbent core layer is 1 to 5mm, and the thickness of said core body lower floor is 1 to 3mm.
Further, core layer is shaped as vertical bar shaped, dumb-bell shape or hourglass shape in the middle of said.
Further, on said core body upper strata with core body lower floor below also be coated with up and down nonwoven layer.
Further, said nonwoven layer is up and down carried out the week envelope.
For realizing second purpose, the technical scheme that the present invention takes is:
A kind of manufacturing approach of middle core layer of disposable absorbent article; Comprise the steps: on the core forming mould according to generating core body lower floor, absorbent core layer and core body upper strata; It is characterized in that the generative process of absorbent core layer is included in the process that forms the high water-absorption particle of lamellar in the corpus fibrosum.
Further, many row's nozzles are set above the core forming mould, spray high water-absorption particle through said many row's nozzles and form absorbent core layer.
Further, the high water-absorption particle of the lamellar of said absorbent core layer is to form through in the corpus fibrosum of absorbent core layer, injecting high water-absorption particle.
The invention has the beneficial effects as follows:
The high water-absorption particle guiding liquids of lamellar vertically flows and diffusion in the absorbent core layer, makes the absorbent material of the bottom of absorbent core layer fully play the imbibition effect, improves its utilization rate.
Description of drawings
Accompanying drawing 1 is a planar development sketch map of the present invention;
Accompanying drawing 2 is sectional views of middle core layer of the present invention;
Accompanying drawing 3 is structural representations of core layer in the middle of the strip;
Accompanying drawing 4 is structural representations of core layer in the middle of the dumb-bell shape;
Accompanying drawing 5 is the front views that are surrounded by the goods of non-woven fabrics;
Accompanying drawing 6 is the side views that are surrounded by the goods of non-woven fabrics.
Label in the accompanying drawing is respectively:
1. middle core layer; 2. core body upper strata; 3. absorbent core layer;
4. core body lower floor; 5. corpus fibrosum; 6. high water-absorption particle;
7. disposable diaper; 8. liquid permeability top layer; 9. liquid-tight bottom;
10. clad; 11. upper strata non-woven fabrics; 12. lower floor's non-woven fabrics.
The specific embodiment
Elaborate below in conjunction with the manufacturing approach of accompanying drawing to disposable absorbent article of the present invention and middle core layer thereof.
Referring to accompanying drawing 1, be the application of preferred implementation on disposable diaper of disposable absorbent article of the present invention, other embodiment such as sanitary towel, diaper, urine trousers, medical bed mattress etc. also can adopt.Disposable diaper 7 is made up of liquid permeability top layer 8, liquid-tight bottom 9 and 1 of middle core layer being positioned between the two.Liquid permeability top layer 8 directly contacts with skin, body fluid, select for use softish, but the non-woven fabrics of liquid permeability; Liquid-tight bottom 9 directly contacts with skin such as clothes, is used to stop absorbed liquid wets, is infected with clothes, and liquid-tight bottom 9 is selected the thermoplastic films such as polyethylene or polypropylene or the composite of these thin film and non-woven fabrics for use; Be positioned at liquid permeability top layer 8 and be used for absorption, storaging liquid with liquid-tight bottom 9 middle core layer 1 between the two.Clad 10 by one deck flexible material wraps up, but clad 10 can be selected liquid permeability materials such as non-woven fabrics, paper for use.Middle core layer 1 is divided into three layers (referring to accompanying drawings 2); Also other functional level can be set as required; Wherein core body upper strata 2 is the mixed layer of corpus fibrosum layer or a small amount of high water-absorption particle and corpus fibrosum, can select the composite fibre body of hydrophilic fibre or hydrophilic fibre and hot-melt fiber for use.Core body lower floor 4 is the corpus fibrosum layer, the composite fibre body of the optional hydrophilic fibre of material or hydrophilic fibre and hot-melt fiber, and its thickness is slightly larger than the thickness on core body upper strata 2.Intermediate core layer 3 is the mixed layer of high water-absorption particle 6 and corpus fibrosum 5; The composite fibre body of corpus fibrosum 5 optional hydrophilic fibres or hydrophilic fibre and hot-melt fiber; High water-absorption particle 6 is arranged evenly in absorbent core layer 3 perpendicular to opaque liquid bottom 9 with sheet form; Perhaps favour opaque liquid bottom 9 and distribute the partially filled corpus fibrosum 5 of other of absorbent core layer 3 with certain angle.The percentage by weight of core layer 1 was more than or equal to 20% in the middle of high water-absorption particle 6 accounted for, and is preferred 20% to 80%, and more preferably 40% to 60%, make the utilization rate of high water-absorption particle 6 reach best.Here, hydrophilic fibre refers to the hydrophilic fibre that native cellulose fibre, man-made cellulose fibers, synthetic fibers obtain after treatment.Hot-melt fiber refers to heat bondable at a certain temperature fiber, like the bicomponent fibre of polyethylene and polyacrylic bicomponent fibre, polyethylene and polyester, polyethylene etc.
The embodiment one of disposable absorbent article: referring to accompanying drawing 3, middle core layer 1 be shaped as vertical bar shaped, the quantity of the high water-absorption particle 6 of lamellar is 10 to 20, is provided with according to the width of middle core layer, gives full play to the imbibition effect of high water-absorption particle 6.
The embodiment two of disposable absorbent article: referring to accompanying drawing 4; Middle core layer 1 be shaped as dumb-bell shape or hourglass shape; The quantity of the high water-absorption particle 6 of lamellar is 5 to 15; Width according to middle core layer is provided with, and two of middle core layer 1 exceeds the middle part narrow positions can not establish high water-absorption particle 6.
In the embodiment of above disposable absorbent article, the thickness on core body upper strata 2 elects 0.5 as to 5mm, and preferred 0.5 to 2mm, and the thickness of absorbent core layer 1 elects 1 as to 10mm, and preferred 1 to 5mm.The thickness of core body lower floor 3 elects 1 as to 10mm, is preferably 1 to 3mm.Because the vertical distribution of high water-absorption particle on vertical; May make high water-absorption particle after imbibition, core body upper strata and core body lower floor produced very big pressure, be prone to make high water-absorption particle to break through corpus fibrosum and leak, therefore at vertical; Lower floor's non-woven fabrics 12 is set below core body lower floor; Upper strata non-woven fabrics 11 (referring to accompanying drawing 5,6) is set above the core body upper strata, and the edge of two-layer nonwoven is 1 to 100mm apart from the Edge Distance of absorber up and down, and optimum is 10 to 30mm.Non-woven fabrics need adopt the material that can bear certain pressure intensity up and down, and the high water-absorption particle after expanding is fixed in the core body, and leakage situation does not take place.Non-woven fabrics is through one hot pressing process up and down, earlier heat bonding carried out in the both sides longitudinally of two-layer nonwoven up and down, again the front and back end envelope carried out heat bonding, and back road cuts off.If be added with meldable fibre in the absorber, then before cut-out, add a bake oven device, or the process of adding a roller hot pressing absorber.It is bonding crosslinked that meldable fibre and other fiber are carried out, and further strengthens fixing to high water-absorption particle, prevents the irregular deformation after its imbibition.
The existing manufacture process of the middle core layer of disposable absorbent article generally is three layers or a multiple structure of core layer in the middle of forming through the different core layer material of core forming mould higher slice absorption.The manufacturing approach of the middle core layer of disposable absorbent article of the present invention is in the manufacture process of absorbent core layer or after making completion, in absorbent core layer, to form the high water-absorption particle of many screenings shape.
The detailed process that in the manufacture process of absorbent core layer, forms the high water-absorption particle of many screenings shape is; Above the core forming mould; Many row's nozzles are set; When forming absorbent core layer, nozzle sprays high water-absorption particle simultaneously, and the height of nozzle and the speed of injection are set in absorbent core layer, to form the high water-absorption particle of lamellar.
The detailed process that after the manufacturing of absorbent core layer is accomplished, forms the high water-absorption particle of many screenings shape is that core layer in the middle of producing with existing method earlier injects high water-absorption particle through filling gun then in absorbent core layer, make the high water-absorption particle of injection form laminated structure.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (13)
1. disposable absorbent article; Comprise liquid permeability top layer, middle core layer and opaque liquid bottom; Core layer comprises core body upper strata, absorbent core layer and core body lower floor in the middle of said; Said absorbent core layer comprises high water-absorption particle and corpus fibrosum, it is characterized in that: said high water-absorption particle is vertical or to favour said opaque liquid bottom arranged evenly in said absorbent core layer with sheet form, other part of absorbent core layer said corpus fibrosum of filling a vacancy.
2. disposable absorbent article according to claim 1 is characterized in that: the quantity of the high water-absorption particle of said lamellar is 5 to 20.
3. disposable absorbent article according to claim 1 is characterized in that: the percentage by weight that said high water-absorption particle accounts for said absorbent core layer is more than or equal to 20%.
4. disposable absorbent article according to claim 1 is characterized in that: the percentage by weight that said high water-absorption particle accounts for said absorbent core layer is 20% to 80%.
5. according to each described disposable absorbent article in the claim 1 to 4, it is characterized in that: said core body upper strata is the mixture of corpus fibrosum or corpus fibrosum and high water-absorption particle.
6. according to each described disposable absorbent article in the claim 1 to 4, it is characterized in that: the thickness on said core body upper strata is 0.5 to 5mm, and the thickness of said absorbent core layer is 1 to 10mm, and the thickness of said core body lower floor is 1 to 10mm.
7. according to each described disposable absorbent article in the claim 1 to 4, it is characterized in that: the thickness on said core body upper strata is 0.5 to 2mm, and the thickness of said absorbent core layer is 1 to 5mm, and the thickness of said core body lower floor is 1 to 3mm.
8. according to each described disposable absorbent article in the claim 1 to 4, it is characterized in that: core layer is shaped as vertical bar shaped, dumb-bell shape or hourglass shape in the middle of said.
9. according to each described disposable absorbent article in the claim 1 to 4, it is characterized in that: on said core body upper strata with core body lower floor below also be coated with up and down nonwoven layer.
10. disposable absorbent article according to claim 9 is characterized in that: said nonwoven layer is up and down carried out the week envelope.
11. manufacturing approach like the middle core layer of each disposable absorbent article in the claim 1 to 10; Comprise the steps: on the core forming mould, to comply with generation core body lower floor, absorbent core layer and core body upper strata, it is characterized in that: the generative process of absorbent core layer is included in the process that forms the high water-absorption particle of lamellar in the corpus fibrosum.
12. the manufacturing approach of core layer in the middle of according to claim 11 is characterized in that: many row's nozzles are set above the core forming mould, spray high water-absorption particle through said many row's nozzles and form absorbent core layer.
13. the manufacturing approach of core layer in the middle of according to claim 11 is characterized in that: the high water-absorption particle of the lamellar of said absorbent core layer is to form through in the corpus fibrosum of absorbent core layer, injecting high water-absorption particle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103222024A CN102499817A (en) | 2011-10-21 | 2011-10-21 | Disposable absorption product and method for manufacturing intermediate core layer of disposable absorption product |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103222024A CN102499817A (en) | 2011-10-21 | 2011-10-21 | Disposable absorption product and method for manufacturing intermediate core layer of disposable absorption product |
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| Publication Number | Publication Date |
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| CN102499817A true CN102499817A (en) | 2012-06-20 |
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| CN2011103222024A Pending CN102499817A (en) | 2011-10-21 | 2011-10-21 | Disposable absorption product and method for manufacturing intermediate core layer of disposable absorption product |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104367418A (en) * | 2013-08-16 | 2015-02-25 | 刘燕 | Composite absorption core |
| CN105662732A (en) * | 2016-03-17 | 2016-06-15 | 泉州市汉威机械制造有限公司 | Absorbing core body |
| CN106109107A (en) * | 2016-08-10 | 2016-11-16 | 佛山市豪利家卫生用品有限公司 | A kind of diaper absorptive core structure |
| CN109481155A (en) * | 2018-11-19 | 2019-03-19 | 清远市腾科机械设备有限公司 | A kind of absorbent commodity core |
| CN110801349A (en) * | 2019-10-13 | 2020-02-18 | 福建恒安集团有限公司 | Absorbent core and manufacturing method thereof |
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| JP2004275352A (en) * | 2003-03-14 | 2004-10-07 | Uni Charm Corp | Disposable wearing article |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104367418A (en) * | 2013-08-16 | 2015-02-25 | 刘燕 | Composite absorption core |
| CN104367418B (en) * | 2013-08-16 | 2018-10-23 | 刘燕 | Composite absorption core |
| CN105662732A (en) * | 2016-03-17 | 2016-06-15 | 泉州市汉威机械制造有限公司 | Absorbing core body |
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| CN109481155A (en) * | 2018-11-19 | 2019-03-19 | 清远市腾科机械设备有限公司 | A kind of absorbent commodity core |
| CN110801349A (en) * | 2019-10-13 | 2020-02-18 | 福建恒安集团有限公司 | Absorbent core and manufacturing method thereof |
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Application publication date: 20120620 |