CN201817724U - Composite water-adsorbing material - Google Patents
Composite water-adsorbing material Download PDFInfo
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- CN201817724U CN201817724U CN2010202939401U CN201020293940U CN201817724U CN 201817724 U CN201817724 U CN 201817724U CN 2010202939401 U CN2010202939401 U CN 2010202939401U CN 201020293940 U CN201020293940 U CN 201020293940U CN 201817724 U CN201817724 U CN 201817724U
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- water
- hot
- adsorbing
- composite
- thermoplastic composite
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Abstract
The utility model discloses a composite water-adsorbing material comprising hot-blast nonwoven fabric and super absorbent polymer particles. The water-adsorbing composite material is characterized in that: the hot-blast nonwoven fabric comprises thermoplastic composite fibers with length of more than or equal to 15mm, the thermoplastic composite fibers are melted and bonded at intersecting contact points among the fibers, so as to form a net shape by interweaving; the super absorbent polymer particles are embedded in meshes and are melted and bonded with the thermoplastic composite fibers. The super absorbent polymer particles are restrained by the hot-blast nonwoven fabric by the structural characteristics of the water-adsorbing composite material, the super absorbent polymer particles are still immovable or basically immovable at the original positions after swelling by water adsorption, and no obvious displacement occurs. The water-adsorbing composite material has the advantages that local accumulation of the super absorbent polymer particles is avoided after swelling by water adsorption, so as to enable the composite water-adsorbing material to keep uniform water-adsorbing property.
Description
Technical field
The utility model relates to composite absorbent material, particularly the composite absorbent material of being made 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 energy.This polymer made particle and combine and just make a kind of composite absorbent material with hot-wind nonwoven cloth.At present, this composite absorbent material of being made 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 by hot melt adhesive.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 hot melt adhesive, 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.
The utility model content
The purpose of this utility model provides a kind of composite absorbent material, 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 described in the utility model 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, 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 said structure characteristics of composite absorbent material make the hydroscopic high-molecular resin particle be subjected to 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 substantially motionless, obvious displacement can not take place.
The utility model has the advantages that the local accumulation of having avoided the hydroscopic high-molecular resin particle behind suction Penghu, to form, make 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 schematic diagram that composite absorbent material is applied to paper diaper.
The specific embodiment
The internal structure of composite absorbent material described in the utility model comprises by length being not less than the hot-wind nonwoven cloth that 15 millimeters thermoplastic composite fiber 1 constitutes as shown in Figure 1, 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 described in the utility model can be used for making paper diaper.As shown in Figure 3, composite absorbent material is wrapped in the cavity that surrounds by hydrophilic surface layer 6 and waterproof counterdie 7 and just makes paper diaper.
Illustrate the preparation method of composite absorbent material below.
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, be that 60 purpose hydroscopic high-molecular resin uniform particles are sprayed on the fibrous reticular structure with fineness degree then, the hydroscopic high-molecular resin particle entered in the cancellated mesh by air-flow vibrations adsorption method with spraying mechanism.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, 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 at contact point.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, be that 60 purpose hydroscopic high-molecular resin uniform particles are sprayed on the fibrous reticular structure with fineness degree then, the hydroscopic high-molecular resin particle entered in the cancellated mesh by air-flow vibrations adsorption method with spraying mechanism.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, 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 at contact point.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 difference of present embodiment and preparation method embodiment 1 is that the gross weight and the raw-material weight ratio of the hydroscopic high-molecular resin particle that adds are about 3: 4, and other are identical.
Above embodiment is only for understanding the usefulness of the utility model, and is not the restriction to the utility model protection domain.All equivalent transformation or modifications of doing according to the utility model spirit essence all are encompassed within the utility model protection domain.
Claims (1)
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, be woven into nettedly, hydroscopic high-molecular resin is particle studded in mesh and bonding with the thermoplastic composite fibers melt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202939401U CN201817724U (en) | 2010-08-10 | 2010-08-10 | Composite water-adsorbing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202939401U CN201817724U (en) | 2010-08-10 | 2010-08-10 | Composite water-adsorbing material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201817724U true CN201817724U (en) | 2011-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202939401U Expired - Fee Related CN201817724U (en) | 2010-08-10 | 2010-08-10 | Composite water-adsorbing material |
Country Status (1)
| Country | Link |
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| CN (1) | CN201817724U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929082A (en) * | 2010-08-10 | 2010-12-29 | 招汉 | Composite absorbent material and preparation method thereof |
| CN105193553A (en) * | 2015-08-12 | 2015-12-30 | 万龙 | Water-absorbent non-woven fabric and preparation method thereof as well as medical non-woven fabric |
| CN109549543A (en) * | 2018-11-19 | 2019-04-02 | 清远市腾科机械设备有限公司 | A kind of sweat towel |
| CN110613556A (en) * | 2019-09-17 | 2019-12-27 | 福建恒安集团有限公司 | Method for preparing absorbent article |
-
2010
- 2010-08-10 CN CN2010202939401U patent/CN201817724U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929082A (en) * | 2010-08-10 | 2010-12-29 | 招汉 | Composite absorbent material and preparation method thereof |
| CN101929082B (en) * | 2010-08-10 | 2012-07-11 | 招汉 | Composite absorbent material and preparation method thereof |
| CN105193553A (en) * | 2015-08-12 | 2015-12-30 | 万龙 | Water-absorbent non-woven fabric and preparation method thereof as well as medical non-woven fabric |
| CN109549543A (en) * | 2018-11-19 | 2019-04-02 | 清远市腾科机械设备有限公司 | A kind of sweat towel |
| CN110613556A (en) * | 2019-09-17 | 2019-12-27 | 福建恒安集团有限公司 | Method for preparing absorbent article |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20120810 |