CN213232680U - Polylactic acid fiber non-woven fabric and directional diversion absorption structure - Google Patents
Polylactic acid fiber non-woven fabric and directional diversion absorption structure Download PDFInfo
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- CN213232680U CN213232680U CN202021899484.5U CN202021899484U CN213232680U CN 213232680 U CN213232680 U CN 213232680U CN 202021899484 U CN202021899484 U CN 202021899484U CN 213232680 U CN213232680 U CN 213232680U
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Abstract
The utility model discloses a polylactic acid fiber non-woven fabrics, including first polylactic acid fiber non-woven fabrics top layer and second polylactic acid fiber non-woven fabrics top layer, the complex is provided with between first polylactic acid fiber non-woven fabrics top layer and the second polylactic acid fiber non-woven fabrics top layer leads wet layer and moisture absorption layer, leads wet layer and is connected with moisture absorption layer at least part, leads wet layer and includes the wet area of leading that a plurality of intervals set up, leads wet area and is directional fibre non-woven fabrics strip. The polylactic acid fiber non-woven fabric is provided with the moisture conducting belt, based on a moisture conducting material with good moisture conducting performance and poor moisture absorption, such as terylene, the moisture conducting belt guides liquid to conduct along the direction of the moisture conducting belt, and the polylactic acid fiber non-woven fabric has good directional flow guiding performance. The utility model also discloses a directional water conservancy diversion absorbent structure.
Description
Technical Field
The utility model relates to a non-woven fabrics technical field, concretely relates to polylactic acid fiber non-woven fabrics and directional water conservancy diversion absorbent structure.
Background
Nonwoven fabrics are generally understood to be nonwoven fabrics which are reinforced by means of non-woven fibers with oriented or randomly oriented fibers. The polylactic acid fiber is a synthetic fiber which can be planted and easily planted as a raw material and can naturally degrade waste in the nature. The polylactic acid fiber has good biocompatibility, biodegradability and physical and mechanical properties.
In the prior art, as described in CN202359380U, a plurality of three-dimensional flow guide grooves are formed in one or both surfaces of a non-woven fabric, and the flow guide grooves are linear stripes or curved stripes. Taking a medical dressing as an example, the existing dressing generally comprises an upper layer of non-woven fabric, a middle dressing water absorption layer and a lower layer of non-woven fabric, and wound seepage liquid is intensively filled in a part of the dressing covering a wound, so that the air permeability of the wound is reduced, and the recovery of the wound is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide a polylactic acid fiber non-woven fabric capable of directionally guiding flow.
Realize above-mentioned technological effect, the utility model discloses a technical scheme does: the utility model provides a polylactic acid fibre non-woven fabrics, includes first polylactic acid fibre non-woven fabrics top layer and second polylactic acid fibre non-woven fabrics top layer, the complex is provided with between first polylactic acid fibre non-woven fabrics top layer and the second polylactic acid fibre non-woven fabrics top layer leads wet layer and moisture absorption layer, it is connected with moisture absorption layer at least part to lead wet layer, it includes the wet area of leading that a plurality of intervals set up to lead wet layer, it is directional fibre non-woven fabrics strip to lead wet area.
Preferably, the moisture absorption layer comprises a plurality of moisture absorption belts arranged at intervals.
The preferable technical proposal is that the side edge of the moisture absorption belt is overlapped with the side edge of the moisture conduction belt.
The preferred technical scheme is that the thickness of the first polylactic acid fiber non-woven fabric surface layer is larger than that of the second polylactic acid fiber non-woven fabric surface layer, and the moisture-conducting layer is connected with the first polylactic acid fiber non-woven fabric surface layer in a compounding manner.
A second object of the utility model is to provide an oriented water conservancy diversion absorbent structure, absorbent core and polylactic acid fiber non-woven fabrics including the complex connection, polylactic acid fiber non-woven fabrics includes first polylactic acid fiber non-woven fabrics top layer and second polylactic acid fiber non-woven fabrics top layer, the complex is provided with between first polylactic acid fiber non-woven fabrics top layer and the second polylactic acid fiber non-woven fabrics top layer leads wet layer and moisture absorption layer, it is connected with moisture absorption layer at least part to lead wet layer, it includes the wet area of leading that a plurality of intervals set up to lead wet layer, it is oriented fiber non-woven fabric strip to lead wet area.
Preferably, the moisture absorption layer comprises a plurality of moisture absorption belts arranged at intervals.
The preferable technical proposal is that the side edge of the moisture absorption belt is overlapped with the side edge of the moisture conduction belt.
The preferred technical scheme is that the thickness of the first polylactic acid fiber non-woven fabric surface layer is larger than that of the second polylactic acid fiber non-woven fabric surface layer, and the moisture-conducting layer is connected with the first polylactic acid fiber non-woven fabric surface layer in a compounding manner.
The preferable technical scheme is that the water absorption core body is connected with the second polylactic acid fiber non-woven fabric surface layer in a compounding way.
The utility model has the advantages and the beneficial effects that:
the polylactic acid fiber non-woven fabric is provided with the moisture-conducting belt, based on a moisture-conducting material with good moisture-conducting property and poor moisture-absorbing property, such as terylene, the moisture-conducting belt guides liquid to conduct along the direction of the moisture-conducting belt, and the polylactic acid fiber non-woven fabric has good directional flow-conducting property;
the polylactic acid fiber non-woven fabric enables the water-absorbing core body of the directional flow guide structure to have water content difference, and the part with low water content has good air permeability.
Drawings
FIG. 1 is a schematic structural view of a polylactic acid fiber nonwoven fabric of example 1;
FIG. 2 is a schematic structural view of a polylactic acid fiber nonwoven fabric of example 2;
FIG. 3 is a schematic structural view of a polylactic acid fiber nonwoven fabric of example 3;
FIG. 4 is a schematic structural view of a polylactic acid fiber nonwoven fabric of example 4;
in the figure: 1. a first polylactic acid fiber non-woven fabric surface layer; 2. a second polylactic acid fiber non-woven fabric surface layer; 3. a moisture wicking tape; 41. a continuous moisture-absorbing layer; 42. a moisture-absorbing tape; 5. a water-absorbing core body.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The composite connection mode among the first polylactic acid fiber non-woven fabric surface layer, the moisture-conducting layer, the moisture-absorbing layer and the second polylactic acid fiber non-woven fabric surface layer can be spunlace, needle punching and the like, and can also be hot melting and the like.
The moisture-conducting layer is preferably made of fibers with excellent moisture-conducting performance and poor moisture-absorbing performance, such as terylene, and the directional fiber non-woven fabric strip refers to the directional lapping of the moisture-conducting fibers in the non-woven fabric. The extension directions of the oriented moisture-conducting fibers and the moisture-conducting strips are consistent, or an included angle is formed between the extension directions of the oriented moisture-conducting fibers and the moisture-conducting strips, and preferably, the included angle is 0-30 degrees between the extension directions of the oriented moisture-conducting fibers and the moisture-conducting strips.
The fibers used in the moisture-absorbing layer are materials having excellent moisture absorption properties, such as water-absorbing resins and cotton fibers. The thickness difference and the composite lap joint structure of each layer of the first polylactic acid fiber non-woven fabric surface layer, the moisture-conducting layer, the moisture-absorbing layer and the second polylactic acid fiber non-woven fabric surface layer can enable the surface of the fabric to form a strip-shaped concave-convex structure and also contribute to directional moisture conduction.
The moisture-conducting layer is at least partially connected with the moisture absorption layer, namely the moisture-conducting layer is in contact with the surface of the moisture absorption layer, the moisture-conducting belts which are arranged at intervals for achieving the purpose of moisture transmission are preferably arranged in parallel, and the moisture-conducting belts are parallel or stacked in a crossed manner.
Example 1
As shown in fig. 1, the polylactic acid fiber nonwoven fabric of embodiment 1 includes a first polylactic acid fiber nonwoven fabric surface layer 1 and a second polylactic acid fiber nonwoven fabric surface layer 2, a moisture-guiding layer and a moisture-absorbing layer are compositely disposed between the first polylactic acid fiber nonwoven fabric surface layer 1 and the second polylactic acid fiber nonwoven fabric surface layer 2, the moisture-guiding layer is composed of a plurality of moisture-guiding belts 3 disposed in parallel and at intervals, and the moisture-guiding belts 3 are oriented fiber nonwoven fabric strips.
The moisture absorption layer in example 1 is the continuous moisture absorption layer 41.
Example 2
As shown in fig. 2, the embodiment 2 is based on the embodiment 1, and the difference is that the absorbent layer includes a plurality of absorbent belts 42 arranged at intervals, the extending direction of the moisture guiding belt 3 is consistent with that of the absorbent belts 42, and two side edges of the absorbent belts 42 are overlapped with the side edges of the moisture guiding belt 3.
The thickness of the first polylactic acid fiber non-woven fabric surface layer 1 is larger than that of the second polylactic acid fiber non-woven fabric surface layer 2, and the moisture-guiding belt 3 of the moisture-guiding layer is in composite connection with the first polylactic acid fiber non-woven fabric surface layer 1.
Example 3
As shown in fig. 3, the directional diversion absorbent structure of example 3 is based on the polylactic acid fiber nonwoven fabric of example 1, and further includes a water absorbent core 5 in thermocompression bonding connection with the polylactic acid fiber nonwoven fabric.
Example 4
As shown in fig. 4, example 4 is based on example 3, except that the directional flow guide absorbent structure of example 4 is based on the polylactic acid fiber nonwoven fabric of example 2, and the water absorbent core 5 is compositely connected with the second polylactic acid fiber nonwoven fabric surface layer 2 with a smaller thickness.
Examples 1 and 2 may be used alone in products that absorb less moisture, and examples 3 and 4 may be used in products that absorb more moisture instantaneously or for a greater total amount of moisture over time, such as dressings.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a polylactic acid fibre non-woven fabrics, its characterized in that, includes first polylactic acid fibre non-woven fabrics top layer and second polylactic acid fibre non-woven fabrics top layer, the complex is provided with between first polylactic acid fibre non-woven fabrics top layer and the second polylactic acid fibre non-woven fabrics top layer leads wet layer and moisture absorption layer, it is connected with moisture absorption layer at least part to lead wet layer, it includes the wet area of leading that a plurality of intervals set up to lead wet layer, it is directional fibre non-woven fabrics strip to lead wet area.
2. The polylactic acid fiber nonwoven fabric according to claim 1, wherein the moisture absorption layer comprises a plurality of moisture absorption bands arranged at intervals.
3. The polylactic acid fiber nonwoven fabric according to claim 2, wherein the side edges of the moisture absorption tape are overlapped with the side edges of the moisture wicking tape.
4. The polylactic acid fiber non-woven fabric according to claim 1, wherein the thickness of the first polylactic acid fiber non-woven fabric surface layer is greater than that of the second polylactic acid fiber non-woven fabric surface layer, and the moisture-wicking layer is compositely connected with the first polylactic acid fiber non-woven fabric surface layer.
5. The utility model provides an oriented flow guiding absorption structure, its characterized in that, includes composite connection's absorbent core and polylactic acid fiber non-woven fabrics, polylactic acid fiber non-woven fabrics includes first polylactic acid fiber non-woven fabrics top layer and second polylactic acid fiber non-woven fabrics top layer, the complex is provided with between first polylactic acid fiber non-woven fabrics top layer and the second polylactic acid fiber non-woven fabrics top layer leads wet layer and moisture absorption layer, it is connected with moisture absorption layer at least part to lead wet layer, it includes the wet area of leading that a plurality of intervals set up to lead wet layer, it is oriented fiber non-woven fabrics strip to lead wet area.
6. The directional diversion absorbent structure of claim 5, wherein said absorbent layer comprises a plurality of absorbent strips spaced apart from each other.
7. The directional diversion absorbent structure of claim 6, wherein said side edges of said absorbent strip overlap said side edges of said moisture wicking strip.
8. The directional diversion absorption structure according to claim 5, wherein the thickness of the first polylactic acid fiber non-woven fabric surface layer is larger than that of the second polylactic acid fiber non-woven fabric surface layer, and the moisture-guiding layer is compositely connected with the first polylactic acid fiber non-woven fabric surface layer.
9. The directional diversion absorbent structure of claim 8, wherein said absorbent core is compositely attached to said second polylactic acid fiber nonwoven surface layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021899484.5U CN213232680U (en) | 2020-09-03 | 2020-09-03 | Polylactic acid fiber non-woven fabric and directional diversion absorption structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021899484.5U CN213232680U (en) | 2020-09-03 | 2020-09-03 | Polylactic acid fiber non-woven fabric and directional diversion absorption structure |
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| Publication Number | Publication Date |
|---|---|
| CN213232680U true CN213232680U (en) | 2021-05-18 |
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|---|---|---|---|
| CN202021899484.5U Active CN213232680U (en) | 2020-09-03 | 2020-09-03 | Polylactic acid fiber non-woven fabric and directional diversion absorption structure |
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| CN (1) | CN213232680U (en) |
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