CN101929082B - Composite absorbent material and preparation method thereof - Google Patents
Composite absorbent material and preparation method thereof Download PDFInfo
- Publication number
- CN101929082B CN101929082B CN2010102550243A CN201010255024A CN101929082B CN 101929082 B CN101929082 B CN 101929082B CN 2010102550243 A CN2010102550243 A CN 2010102550243A CN 201010255024 A CN201010255024 A CN 201010255024A CN 101929082 B CN101929082 B CN 101929082B
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- Prior art keywords
- thermoplastic composite
- molecular resin
- hydroscopic high
- fiber
- absorbent material
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- 239000002131 composite material Substances 0.000 title claims abstract description 63
- 230000002745 absorbent Effects 0.000 title claims abstract description 31
- 239000002250 absorbent Substances 0.000 title claims abstract description 31
- 239000000463 material Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000000835 fiber Substances 0.000 claims abstract description 56
- 239000011347 resin Substances 0.000 claims abstract description 41
- 229920005989 resin Polymers 0.000 claims abstract description 41
- 239000002245 particle Substances 0.000 claims abstract description 39
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 36
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 36
- 239000002994 raw material Substances 0.000 claims abstract description 27
- 239000004744 fabric Substances 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 230000008961 swelling Effects 0.000 abstract 1
- 239000004698 Polyethylene Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- -1 polyethylene Polymers 0.000 description 5
- 229920000573 polyethylene Polymers 0.000 description 5
- 229920001131 Pulp (paper) Polymers 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000005213 imbibition Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005660 hydrophilic surface Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 229920000247 superabsorbent polymer Polymers 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Images
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- Nonwoven Fabrics (AREA)
Abstract
The invention discloses a composite absorbent material, which comprises hot air-through nonwoven cloth and macromolecular absorbent resin particles, wherein the hot air-through nonwoven cloth comprises thermoplastic composite fibers with a length of no less than 15 millimeters, and the macromolecular absorbent resin particles are embedded in the meshes interwoven by these thermoplastic composite fibers. The invention also discloses a preparation method of the composite absorbent material, which comprises: forming a loose netty structure of raw materials, namely the thermoplastic composite fibers with the length of no less than 15 millimeters, filling the macromolecular absorbent resin particles into the meshes of the netty structure, heating and cooling. Due to the structural characteristics of the composite absorbent material, the macromolecular absorbent resin particles are restrained by the hot air-through nonwoven cloth and therefore can stay or almost stay in the original places after absorbing water and swelling rather than displace obviously.
Description
Technical field
The present invention relates to composite absorbent material, the composite absorbent material of particularly processing by hot-wind nonwoven cloth and hydroscopic high-molecular resin particle.
Background technology
Hydroscopic high-molecular resin (super Absorbent Polymer is called for short SAP) is a kind of high molecular polymer with high-hydroscopicity ability.This polymer processed particle and combine with hot-wind nonwoven cloth just process a kind of composite absorbent material.At present; This composite absorbent material of being processed by hot-wind nonwoven cloth and hydroscopic high-molecular resin particle is that the hydroscopic high-molecular resin particle is clipped between the two-layer hot-wind nonwoven cloth; Perhaps be clipped between hot-wind nonwoven cloth and the other materials layer, and bonding fixing through PUR.After the hydroscopic high-molecular resin particle absorbed moisture content, its volumetric expansion was to original hundreds of times more than.Hydroscopic high-molecular resin particle after the imbibition breaks away from the constraint of PUR; Can be subjected to displacement under external force; Cause local accumulation, make the water absorbing properties of the different parts of composite absorbent material produce notable difference, even make the local forfeiture of composite absorbent material water absorbing capacity.
Summary of the invention
The purpose of this invention is to provide a kind of composite absorbent material and preparation method thereof, to overcome the defective of the easy displacement in hydroscopic high-molecular resin particle suction back in the composite absorbent material.
For this reason; Composite absorbent material of the present invention comprises hot-wind nonwoven cloth and hydroscopic high-molecular resin particle; Especially, hot-wind nonwoven cloth includes the thermoplastic composite fiber that length is not less than 15 millimeters, and the intersection contact point of these thermoplastic composite fibers between fiber is melt bonded; Be woven into nettedly, hydroscopic high-molecular resin is particle studded in mesh and bonding with the thermoplastic composite fibers melt.
The method for preparing composite absorbent material of the present invention is following: select for use length to be not less than 15 millimeters thermoplastic composite fiber as raw material; Raw material are carried out shredding to be handled; Then it is carried out combing, make raw material form fluffy network structure, then the hydroscopic high-molecular resin particle is joined in the cancellated mesh; Then penetrate network structure with hot blast; Make the intersection contact point of thermoplastic composite fiber between fiber melt bonded, make hydroscopic high-molecular resin particle and thermoplastic composite fiber melt bonded simultaneously, after cooling at contact point; Raw material form has cancellated fluffy hot-wind nonwoven cloth, and the hydroscopic high-molecular resin granulopexy is in the mesh that the thermoplastic composite fiber interweaving forms.
The said structure characteristics of composite absorbent material make the hydroscopic high-molecular resin particle receive the constraint of hot-wind nonwoven cloth, and the hydroscopic high-molecular resin particle still can keep after imbibition or to remain on original position basically motionless, obvious displacement can not take place.
Advantage of the present invention is a local accumulation of having avoided the hydroscopic high-molecular resin particle behind suction Penghu, to form, makes composite absorbent material can keep uniform water absorbing properties.
Description of drawings
Fig. 1 is the structural representation of composite absorbent material;
Fig. 2 increases the structural representation of dust-free paper on Fig. 1 basis;
Fig. 3 is the sketch map that composite absorbent material is applied to paper diaper.
The specific embodiment
The internal structure of composite absorbent material of the present invention is as shown in Figure 1, comprises by length being not less than the hot-wind nonwoven cloth that 15 millimeters thermoplastic composite fiber 1 constitutes, and is embedded in the hydroscopic high-molecular resin particle 2 in the hot-wind nonwoven cloth.The thermoplastic composite fiber is the two component thermoplastic composite fibers of polyethylene/polypropylene preferably, or the two component thermoplastic composite fibers of polyethylene/polyester.This thermoplastic composite fiber is a skin-core structure, and epidermal area is a polyethylene, and good heat bonding performance is arranged, and fiber is easy to hot melting cohesion with the contact point that intersects between the fiber.The dawn scope of counting of thermoplastic composite fiber was preferably between 1～15 dawn.Hot-wind nonwoven cloth both can be all be not less than 15 millimeters thermoplastic composite fiber by length and constituted, and also can comprise other fibers, for example can add natural cotton fiber, natural wood pulp fiber, natural bamboo pulp fiber or viscose etc.The length of these other fibers that comprised can be less than 15 millimeters.The weight ratio of thermoplastic composite fiber and other fibers can be between 1: 3～4: 1.
It is melt bonded that length is not less than 15 millimeters the intersection contact point 3 of thermoplastic composite fiber 1 between fiber, is woven into netted.Hydroscopic high-molecular resin particle 2 is embedded in the mesh and is bonding with the thermoplastic composite fibers melt.The fineness degree of hydroscopic high-molecular resin particle is preferably between 20 orders～150 orders.The weight ratio of the gross weight of hydroscopic high-molecular resin particle and thermoplastic composite fiber can be between 1: 0.1～1: 10.
On the basis of Fig. 1, can also increase more material layer for composite absorbent material.For example shown in Figure 2, cover one deck dust- free paper 4,5 and altogether respectively at the upper and lower faces of composite absorbent material with melt viscosity.
Composite absorbent material of the present invention can be used for making paper diaper.As shown in Figure 3, composite absorbent material is wrapped in the cavity that is surrounded by hydrophilic surface layer 6 and waterproof counterdie 7 just processes paper diaper.
Illustrate the preparation method of composite absorbent material below.
Preparation method embodiment 1
Select for use the two component thermoplastic composite fibers of polyethylene/polypropylene as raw material, the specification of fiber is 3D * 51mm.Earlier raw material being carried out shredding handles; With mechanical comb and parallel cotton fibers prior to spinning device raw material are carded to fluffy network structure then; Then using spraying mechanism is that 60 purpose hydroscopic high-molecular resin uniform particles are sprayed on the fibrous reticular structure with fineness degree, through air-flow vibrations adsorption method the hydroscopic high-molecular resin particle is entered in the cancellated mesh.The gross weight and the raw-material weight ratio of the hydroscopic high-molecular resin particle that is added are about 2: 3.Then utilize belt conveyor to have the raw material of hydroscopic high-molecular resin particle to send in the hot air apparatus adding; Make the circulating air of hot air apparatus penetrate raw-material network structure; The hot blast temperature scope can be 110 ℃～170 ℃; Can be 3 seconds～30 seconds heat time heating time, makes the intersection contact point of thermoplastic composite fiber between fiber melt bonded, makes hydroscopic high-molecular resin particle and thermoplastic composite fiber melt bonded at contact point simultaneously.Behind natural cooling and shaping, raw material form has cancellated fluffy hot-wind nonwoven cloth, and the hydroscopic high-molecular resin particle is fixed in the mesh that the thermoplastic composite fiber interweaving forms.
Select for use the two component thermoplastic composite fibers of polyethylene/polyester as raw material, the specification of fiber is 3D * 51mm.Earlier raw material being carried out shredding handles; With mechanical comb and parallel cotton fibers prior to spinning device raw material are carded to fluffy network structure then; Then using spraying mechanism is that 60 purpose hydroscopic high-molecular resin uniform particles are sprayed on the fibrous reticular structure with fineness degree, through air-flow vibrations adsorption method the hydroscopic high-molecular resin particle is entered in the cancellated mesh.The gross weight and the raw-material weight ratio of the hydroscopic high-molecular resin particle that is added are about 4: 5.Then fine hair wood pulp fibre (for example sulphite softwood pulp fiber) is ground into the filament of length 0.5～3mm and joins in the raw material through pulverizer.Fine hair wood pulp fibre and raw-material weight ratio are about 1: 5.Then utilize belt conveyor to have the raw material of hydroscopic high-molecular resin particle and fine hair wood pulp fibre to send in the hot air apparatus adding; Make the circulating air of hot air apparatus penetrate raw-material network structure; The hot blast temperature scope can be 110 ℃～170 ℃; Can be 3 seconds～30 seconds heat time heating time, makes the intersection contact point of thermoplastic composite fiber between fiber melt bonded, makes hydroscopic high-molecular resin particle and thermoplastic composite fiber melt bonded at contact point simultaneously.Behind natural cooling and shaping, raw material form has cancellated fluffy hot-wind nonwoven cloth, and the hydroscopic high-molecular resin particle is fixed in the mesh that the thermoplastic composite fiber interweaving forms.
The gross weight and the raw-material weight ratio of the hydroscopic high-molecular resin particle that the difference of present embodiment and preparation method embodiment 1 is to add are about 3: 4, and other are identical.
Above embodiment is merely the usefulness of understanding the present invention, and is not the restriction to protection domain of the present invention.All equivalent transformations that spirit is done according to the present invention or modification all are encompassed within the protection domain of the present invention.
Claims (2)
1. composite absorbent material; Comprise hot-wind nonwoven cloth and hydroscopic high-molecular resin particle; It is characterized in that: hot-wind nonwoven cloth includes the thermoplastic composite fiber that length is not less than 15 millimeters; The intersection contact point of these thermoplastic composite fibers between fiber is melt bonded, is woven into fluffy nettedly, and hydroscopic high-molecular resin is particle studded in mesh and bonding with the thermoplastic composite fibers melt.
2. the preparation method of a composite absorbent material; It is characterized in that: select for use length to be not less than 15 millimeters thermoplastic composite fiber, raw material are carried out shredding handle, then raw material are carried out combing as raw material; Make raw material form fluffy network structure; Then the hydroscopic high-molecular resin particle is joined in the cancellated mesh, then penetrate network structure, make the intersection contact point of thermoplastic composite fiber between fiber melt bonded with hot blast; Make hydroscopic high-molecular resin particle and thermoplastic composite fiber melt bonded simultaneously at contact point; After cooling, raw material form has cancellated fluffy hot-wind nonwoven cloth, and the hydroscopic high-molecular resin granulopexy is in the mesh that the thermoplastic composite fiber interweaving forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102550243A CN101929082B (en) | 2010-08-10 | 2010-08-10 | Composite absorbent material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102550243A CN101929082B (en) | 2010-08-10 | 2010-08-10 | Composite absorbent material and preparation method thereof |
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| Publication Number | Publication Date |
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| CN101929082A CN101929082A (en) | 2010-12-29 |
| CN101929082B true CN101929082B (en) | 2012-07-11 |
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| CN2010102550243A Expired - Fee Related CN101929082B (en) | 2010-08-10 | 2010-08-10 | Composite absorbent material and preparation method thereof |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITUB20154187A1 (en) * | 2015-10-06 | 2016-01-06 | Fameccanica Data Spa | PROCEDURE AND EQUIPMENT FOR THE PRODUCTION OF AN ABSORBENT STRUCTURE |
| CN105520810A (en) * | 2016-01-24 | 2016-04-27 | 厦门源创力科技服务有限公司 | Absorption core body with plurality of dispersed bonding points and disposable absorption article |
| CN106218068A (en) * | 2016-07-18 | 2016-12-14 | 常熟市立新无纺布织造有限公司 | A kind of medical antibacterial water suction non-woven fabrics |
| CN108113804A (en) * | 2016-11-26 | 2018-06-05 | 石家庄宝洁卫生用品有限公司 | A kind of sanitary napkin of non-woven fabrics core |
| CN107242938B (en) * | 2017-07-07 | 2021-02-09 | 陈建辉 | Water-absorbing core body and preparation method and application thereof |
| CN107307942B (en) * | 2017-07-28 | 2020-12-18 | 陈建辉 | Preparation system of water absorption core body |
| CN109091305A (en) * | 2018-09-21 | 2018-12-28 | 川田卫生用品(浙江)有限公司 | Sanitary napkin with Multiple Protective System |
| CN109942753A (en) * | 2019-03-28 | 2019-06-28 | 山东诺尔生物科技有限公司 | A kind of macromolecule water uptake resin, composite absorption core and preparation method thereof |
| CN112746390B (en) * | 2021-01-28 | 2022-04-12 | 广东春夏新材料科技股份有限公司 | Hot-air cloth for sanitary towel and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293025A (en) * | 1999-09-29 | 2001-05-02 | 株式会社日本吸收体技术研究所 | High water absorption sheet material and its manufacturing method |
| EP1156147A1 (en) * | 2000-05-17 | 2001-11-21 | Kang Na Hsiung Enterprise Co. Ltd. | Non-woven composite fabric |
| CN1344827A (en) * | 2000-09-29 | 2002-04-17 | 康那香企业股份有限公司 | :Composite card web and air-lay process for producing non-woven fabric |
| CN201817724U (en) * | 2010-08-10 | 2011-05-04 | 招汉 | Composite water-adsorbing material |
-
2010
- 2010-08-10 CN CN2010102550243A patent/CN101929082B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293025A (en) * | 1999-09-29 | 2001-05-02 | 株式会社日本吸收体技术研究所 | High water absorption sheet material and its manufacturing method |
| EP1156147A1 (en) * | 2000-05-17 | 2001-11-21 | Kang Na Hsiung Enterprise Co. Ltd. | Non-woven composite fabric |
| CN1344827A (en) * | 2000-09-29 | 2002-04-17 | 康那香企业股份有限公司 | :Composite card web and air-lay process for producing non-woven fabric |
| CN201817724U (en) * | 2010-08-10 | 2011-05-04 | 招汉 | Composite water-adsorbing material |
Non-Patent Citations (1)
| Title |
|---|
| 马建伟等.非织造布技术概论.《非织造布技术概论（第2版）》.中国纺织出版社,2008,第5页. * |
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| CN101929082A (en) | 2010-12-29 |
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Granted publication date: 20120711 |