CN215192991U - Polylactic acid fiber composite absorption core - Google Patents
Polylactic acid fiber composite absorption core Download PDFInfo
- Publication number
- CN215192991U CN215192991U CN202120838448.6U CN202120838448U CN215192991U CN 215192991 U CN215192991 U CN 215192991U CN 202120838448 U CN202120838448 U CN 202120838448U CN 215192991 U CN215192991 U CN 215192991U
- Authority
- CN
- China
- Prior art keywords
- polylactic acid
- layer
- fiber
- bicomponent
- acid fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Nonwoven Fabrics (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
The utility model provides a polylactic acid fibre combined absorption core belongs to the health supplies field, and it has solved the poor, not high, the not degradable problem of product of current core hydroscopicity. The utility model discloses a: the surface layer, the middle layer and the bottom layer are bonded and fixed with each other. The middle layer comprises a bicomponent polylactic acid fiber layer and a three-dimensional curled elastic fiber layer; and the fiber curling space of the three-dimensional curled elastic fiber layer is internally provided with super absorbent resin. Compared with the prior art, the utility model discloses need not spray the bonding that the hot melt adhesive can realize three layer construction between top layer, intermediate level and the bottom, when realizing the hydroscopicity, environmental protection more. In addition, the polylactic acid fiber used by the utility model has weak acidity and natural bacteriostasis, and is healthy and comfortable. The water-absorbing agent is mixed with the super absorbent resin to form a super absorbent and water guiding layer, so that the liquid absorption and absorption speed is accelerated. The utility model has the characteristics of simple structure, reasonable in design, the hydroscopicity is strong, the product is degradable.
Description
Technical Field
The utility model relates to an absorb core belongs to the health supplies field, concretely relates to polylactic acid fibre composite absorption core.
Background
Along with the development of economy and the improvement of living standard of people, people have more and more demands on disposable sanitary products. The absorbent core is the most critical and important part of the disposable sanitary article. The quality of the properties of the disposable sanitary article, such as water absorption, retention, etc., is largely determined by the absorbent core.
The absorbent cores for treating human waste currently available on the market can be roughly divided into two types: one is a composite core, generally consisting of a dust-free paper, a non-woven fabric layer, and two layers of SAP superabsorbent resin; the other is a cotton core body which is formed by wrapping fluff pulp and SAP by dust-free paper or hydrophilic cloth. Some manufacturers make fine adjustment on the basis of the structure, and add a layer of wood pulp on the core structure, or emboss the cotton core with a grinding wheel. In the prior art absorption core, the liquid is conducted and diffused through the gaps of the fibers and the SAP, once the gaps are blocked, the liquid diffusion of the whole core is greatly weakened, the absorption performance of the core is reduced, meanwhile, the core is not fully utilized, the core is layered after liquid absorption, and the SAP slides to form a pile.
In view of this, it is necessary to design an absorbent core to solve the problems of poor water absorption, low stability and non-degradable products of the existing core.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a polylactic acid fibre composite absorption core.
In order to solve the technical problem, the purpose of the utility model is to realize like this:
a polylactic acid fiber composite absorption core comprises a surface layer, a middle layer and a bottom layer which are bonded and fixed.
The middle layer is arranged between the surface layer and the bottom layer;
the surface layer is a polylactic acid hot-air non-woven fabric, and polylactic acid of the polylactic acid hot-air non-woven fabric is double-component polylactic acid fiber;
the middle layer comprises a bicomponent polylactic acid fiber layer and a three-dimensional curled elastic fiber layer, wherein the bicomponent polylactic acid fiber layer is made of bicomponent polylactic acid fibers;
part of polylactic acid fibers of the bicomponent polylactic acid fiber layer penetrate through the three-dimensional crimp elastic fiber layer; the three-dimensional crimped elastic fiber crimped space of the three-dimensional crimped elastic fiber layer is internally provided with super absorbent resin;
the core layer of the bicomponent polylactic acid fiber is a high-melting-point polylactic acid component, and the skin layer of the bicomponent polylactic acid fiber is a low-melting-point polylactic acid component;
the bottom layer is polylactic acid spunlace non-woven fabric.
In addition to and as a preferred embodiment of the above aspect, the weight of the polylactic acid hot air non-woven fabric is 20 to 35g/m2The thickness is 0.1-0.17 mm.
On the basis of the above scheme and as a preferable scheme of the scheme, the bicomponent polylactic acid fiber used by the polylactic acid hot air non-woven fabric has the fineness of 2-4D and the length of 38-51 mm.
In addition to and as a preferred embodiment of the above aspects, the gram weight of the polylactic acid spunlace nonwoven fabric is 30-40g/m2The thickness is 0.08-0.16mm, and the polylactic acid fiber is single-component polylactic acid fiberThe fineness of the fiber is 1.2-2D, and the length is 38 mm.
On the basis of the scheme and as a preferable scheme of the scheme, the fineness of the bicomponent polylactic acid fiber layer is 1-2D, the length is 2-4mm, and no crimp is generated; the fiber fineness of the three-dimensional crimped elastic fiber layer is 3-6D, and the length of the three-dimensional crimped elastic fiber layer is 4-8 mm.
On the basis of the scheme, and as a preferable scheme of the scheme, the fiber curling number of the three-dimensional curled elastic fiber layer is 20-22/inch, the curling degree is 14 degrees, and the three-dimensional curled elastic fiber layer is prepared by research and development of New Material Ltd of Jinquan, Suzhou.
The utility model has the advantages that: compared with the prior art, the utility model discloses need not spray the bonding that the hot melt adhesive can realize three layer construction between top layer, intermediate level and the bottom, when realizing absorbing water, water conductivity, environmental protection more. And the polylactic acid fiber used by the utility model has weak acidity and natural bacteriostasis, is healthy and comfortable, and is mixed with super absorbent resin to form a high water absorption and water guide layer, thereby accelerating the absorption and absorption speed of liquid. The utility model has the characteristics of simple structure, reasonable in design, the hydroscopicity is strong, the product is degradable.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1-surface layer; 2-an intermediate layer; 3-a bottom layer; 21-a bicomponent polylactic acid fiber layer; 22-a three-dimensional crimped spandex layer; 23-super absorbent resin.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in figure 1, the polylactic acid fiber composite absorption core comprises a surface layer 1, a middle layer 2 and a bottom layer 3 which are bonded and fixed with each other. The middle layer 2 is arranged between the surface layer 1 and the bottom layer 3; the surface layer 1 is a polylactic acid hot-air non-woven fabric, and polylactic acid of the polylactic acid hot-air non-woven fabric is double-component polylactic acid fiber; the middle layer 2 comprises a bicomponent polylactic acid fiber layer 21 and a three-dimensional crimp elastic fiber layer 22, wherein the bicomponent polylactic acid fiber layer is made of bicomponent polylactic acid fibers; part of the polylactic acid fibers of the bicomponent polylactic acid fiber layer 21 pass through the three-dimensional crimp elastic fiber layer 22; the three-dimensional crimped elastic fiber crimped space of the three-dimensional crimped elastic fiber layer 22 is internally provided with super absorbent resin 23; the core layer of the bicomponent polylactic acid fiber is a high-melting-point polylactic acid component, and the skin layer of the bicomponent polylactic acid fiber is a low-melting-point polylactic acid component; the bottom layer 3 is polylactic acid spunlace non-woven fabric.
Specifically, the utility model discloses a polylactic acid fibre has prepared the hot-blast non-woven fabrics of polylactic acid and is top layer 1, polylactic acid water thorn non-woven fabrics is bottom 3. The polylactic acid fiber is a bio-based synthetic fiber which is prepared by taking plant starch such as corn old grain, cassava and the like as raw materials, converting the raw materials into lactic acid through probiotic fermentation, and then polymerizing and spinning the lactic acid. The production process is harmless and pollution-free to the environment. Meanwhile, the fiber has good biodegradability, and can be degraded into carbon dioxide and water after being buried and composted after being discarded, so that the fiber returns to the nature and does not pollute the environment. The material is renewable, has good biocompatibility and biological absorbability, and is a novel textile material which is completely ecological and environment-friendly. In recent years, corn fiber has become a subject of attention in the textile and clothing industry. And is listed as a new bio-based material which is mainly popularized and applied in the thirteen-five program of the country. Further, the three-dimensional crimped elastic fibers of the three-dimensional crimped elastic fiber layer 22 are crimped to form a crimp receiving space, and a super absorbent resin 23 is provided in the receiving space to satisfy the high water absorption performance of the core.
Further, the gram weight of the polylactic acid hot-air non-woven fabric is 20-35g/m2The thickness is 0.1-0.17 mm. Furthermore, the fineness of the bicomponent polylactic acid fiber used by the polylactic acid hot air non-woven fabric is 2-4D, and the length is 38-51 mm.
Further, the polylactic acid spunlace nonwoven fabric has the advantages of high strength, high water resistance and the likeThe weight is 30-40g/m2The thickness is 0.08-0.16mm, the polylactic acid fiber is single-component polylactic acid fiber, the fiber fineness is 1.2-2D, and the length is 38 mm. Further, the fineness of the bicomponent polylactic acid fiber layer 21 is 1-2D, the length is 2-4mm, and no crimp is generated; the fiber fineness of the three-dimensional crimped spandex layer 22 is 3-6D, and the length is 4-8 mm. Further, the three-dimensional crimped spandex of the three-dimensional crimped spandex layer 22 is composed of three component fibers of PLA, PTT and PBT, has a crimp number of 20-22/inch and a crimp degree of 14 degrees, and is prepared by research and development of New Material Ltd. of Jinquan, Suzhou.
The utility model discloses a concrete manufacture process does:
firstly, a bottom layer 3 is manufactured, the number of layers of cross lapping of the polylactic acid fiber spunlace non-woven fabric is 2, and the polylactic acid fiber spunlace non-woven fabric is dried and coiled. Meanwhile, the polylactic acid hot-air non-woven fabric is rolled. The bicomponent polylactic acid fiber layer 21, the three-dimensional crimp elastic fiber layer 22 and the super absorbent resin 23 were mixed by a mixer to uniformly mix the two fibers. At the same time, the super absorbent resin 23 is dispersed in the fiber curl accommodating space of the three-dimensional curled elastic fiber layer 22 and further covered by the curl curve. The polylactic acid spunlace non-woven fabric of the bottom layer 3 is unreeled, and the mixed components of the middle layer 2 are sprayed on the polylactic acid spunlace non-woven fabric, wherein the spraying amount is 320-450g/m2. And then unreeling the polylactic acid hot-air non-woven fabric of the surface layer 1, and stacking the polylactic acid hot-air non-woven fabric on the bottom layer 3 sprayed with the components of the middle layer 2. Finally, the double-component polylactic acid fiber layer is placed in an oven for drying and reinforcing, the polylactic acid fiber skin layer of the double-component polylactic acid fiber layer 21 in the middle layer 2 is melted to bond and fix the high water-absorbent resin 23, and meanwhile, the polylactic acid hot air non-woven fabric and the polylactic acid spunlace non-woven fabric are bonded and fixed. Cutting into pieces with width of 6-12cm as required to obtain polylactic acid fiber composite absorbing core.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (6)
1. The utility model provides a polylactic acid fibre composite absorption core, includes fixed top layer (1), intermediate level (2) and bottom (3) of looks bonding, its characterized in that:
the intermediate layer (2) is arranged between the surface layer (1) and the bottom layer (3);
the surface layer (1) is a polylactic acid hot-air non-woven fabric, and polylactic acid of the polylactic acid hot-air non-woven fabric is double-component polylactic acid fiber;
the middle layer (2) comprises a bicomponent polylactic acid fiber layer (21) made of bicomponent polylactic acid fibers and a three-dimensional curled elastic fiber layer (22);
part of polylactic acid fibers of the bicomponent polylactic acid fiber layer (21) penetrate through the three-dimensional crimp elastic fiber layer (22); a high water-absorbent resin (23) is arranged in the three-dimensional crimped elastic fiber crimping space of the three-dimensional crimped elastic fiber layer (22);
the core layer of the bicomponent polylactic acid fiber is a high-melting-point polylactic acid component, and the skin layer of the bicomponent polylactic acid fiber is a low-melting-point polylactic acid component;
the bottom layer (3) is polylactic acid spunlace non-woven fabric.
2. The polylactic acid fiber composite absorption core body as claimed in claim 1, wherein the grammage of the polylactic acid hot air non-woven fabric is 20-35g/m2The thickness is 0.1-0.17 mm.
3. The polylactic acid fiber composite absorption core body as claimed in claim 2, wherein the polylactic acid hot air non-woven fabric uses bi-component polylactic acid fibers with fineness of 2-4D and length of 38-51 mm.
4. The polylactic acid fiber composite absorbent core as claimed in claim 1, wherein the grammage of the polylactic acid spunlace nonwoven fabric is 30-40g/m2The thickness is 0.08-0.16mm, and the polylactic acid fiber is single-component polylactic acid fiberThe fineness is 1.2-2D, and the length is 38 mm.
5. The polylactic acid fiber composite absorption core body as claimed in claim 1, wherein the bicomponent polylactic acid fiber layer (21) has a bicomponent polylactic acid fiber fineness of 1-2D, a length of 2-4mm, and no crimp; the fiber fineness of the three-dimensional crimped elastic fiber layer (22) is 3-6D, and the length is 4-8 mm.
6. The polylactic acid fiber composite absorbent core according to claim 5, wherein the three-dimensional crimped spandex layer (22) has a fiber crimp number of 20-22/inch and a crimp degree of 14 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120838448.6U CN215192991U (en) | 2021-04-22 | 2021-04-22 | Polylactic acid fiber composite absorption core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120838448.6U CN215192991U (en) | 2021-04-22 | 2021-04-22 | Polylactic acid fiber composite absorption core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215192991U true CN215192991U (en) | 2021-12-17 |
Family
ID=79449927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120838448.6U Active CN215192991U (en) | 2021-04-22 | 2021-04-22 | Polylactic acid fiber composite absorption core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215192991U (en) |
-
2021
- 2021-04-22 CN CN202120838448.6U patent/CN215192991U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2655241C2 (en) | Hydroentangled fibrous structures | |
| CN104068968B (en) | The manufacture method of pliable and tough anti-deformation core body premix material paper urine pad | |
| CN107503042B (en) | Water-jet mask base material and preparation method thereof | |
| CN107405241A (en) | High-performance non-woven structure | |
| US11806976B2 (en) | Nonwoven material with high core bicomponent fibers | |
| CN103144368A (en) | Multi-group press polish treating thin dust-free paper used for absorbing liquid, and manufacturing method and purposes thereof | |
| CN101830085A (en) | Spunlaced nonwoven with dry water-absorbent function and manufacturing method thereof | |
| CN100471477C (en) | Absorbent commodity | |
| CN101481852A (en) | Nonwoven fabric containing polyester complex fiber, preparation thereof and use as hydroscopic substance flow guiding layer | |
| CN106974768B (en) | High-degradation-rate diversion layer material and preparation method thereof | |
| KR20080106609A (en) | The manufacturing method of nonwoven using pla staple fiber and the nonwoven thereof and the biodegradable absorbent pad therewith | |
| CN106580561A (en) | Biodegradable baby diaper and preparation method thereof | |
| CN109674588A (en) | A kind of core and process units and technique for amenities | |
| CN210657386U (en) | Combined spunlace non-woven fabric for water absorption surface layer of personal hygiene care product and production device thereof | |
| CN115317244A (en) | Manufacturing process of absorber for absorbent article | |
| CN107928883A (en) | A kind of sanitary napkin of PLA surface layers | |
| CN215192991U (en) | Polylactic acid fiber composite absorption core | |
| CN107938165A (en) | A kind of double-deck spunlace non-woven cloth of sanitary napkin | |
| CN112411011A (en) | Method for twin-spinning non-woven fabric | |
| CN215536930U (en) | Polylactic acid degradable sanitary pad | |
| CN208626012U (en) | A kind of composite absorption core structure and sanitary care article | |
| RU2388860C2 (en) | Nonwoven material and absorbing item that includes nonwoven material | |
| CN219010626U (en) | Water-jet nonwoven fabric, composite nonwoven fabric and sanitary absorbent product | |
| CN102912556B (en) | Cloth for sanitary pads and preparation method of cloth | |
| CN109806070A (en) | Keep the perfect diffusion imbibition material and its manufacturing process of surface dry |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |