CN215103852U - Multilayer composite wet spunlace non-woven fabric production device - Google Patents
Multilayer composite wet spunlace non-woven fabric production device Download PDFInfo
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- CN215103852U CN215103852U CN202120641950.8U CN202120641950U CN215103852U CN 215103852 U CN215103852 U CN 215103852U CN 202120641950 U CN202120641950 U CN 202120641950U CN 215103852 U CN215103852 U CN 215103852U
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Abstract
The utility model discloses a compound wet process water thorn non-woven fabrics apparatus for producing of multilayer belongs to the non-woven fabrics equipment field. The device utilizes first conveying net and second conveying net to transfer basic unit's wet fibre net and surface course wet fibre net to on the water thorn holds in the palm the net and carries out the water thorn respectively, can once only realize the compound tangle between two-layer fibrous layer. Moreover, because each wet web layer is positioned on the spunlace tray all the time before being entangled to a sufficient strength in the whole production process, the transfer is not needed in the middle, so that the problem of insufficient strength in the middle process is not considered. This greatly reduces the fibrous material and strength requirements of the wet web of the base layer. The composite non-woven fabric forming process adopting the equipment can improve the web forming speed of the fiber, enlarge the selection margin of the fiber, reduce the cost of raw materials, improve the strength of products, reduce the loss and effectively overcome the defects of the previous production equipment and process.
Description
Technical Field
The utility model belongs to the non-woven fabrics equipment field, concretely relates to compound wet process water thorn non-woven fabrics apparatus for producing of multilayer.
Background
The existing wet-process non-woven fabric production method basically adopts the following methods:
the method comprises the following steps: as shown in figure 1, the method adopts various porous base materials with certain strength, the porous base materials are attached to a wet-laid fiber layer after unreeling, then the wet-laid fiber layer is implanted into the base materials through multiple times of spunlace, and the wet-laid fiber layer and the base materials are mutually entangled under the action of high-pressure water flow to prepare the composite non-woven fabric.
The method 2 comprises the following steps: as shown in figure 2, the method adopts non-woven fabric manufacturing equipment to manufacture a base material with certain strength by carding fibers, then the base material is attached to a fiber layer manufactured by wet forming equipment, and two layers of fibers are mutually entangled through a plurality of water jet actions to manufacture the composite non-woven fabric.
The method 3 comprises the following steps: as shown in figure 3, the method mixes chopped fiber and natural fiber, uses wet forming equipment to prepare a mixed fiber layer, and then carries out a plurality of times of hydro-entangling to prepare the wet non-woven fabric with certain strength.
However, the three production methods have the following disadvantages:
the method comprises the following steps: in the method, the porous substrate belongs to a textile product, various processes are carried out, the cost of the material is high, the selection range is caused by the width, length and gram weight of the product, most products cannot be produced in large scale, the cost is high, and the application field is limited.
The method 2 comprises the following steps: in the method, the manufacturing speed of the non-woven equipment is limited to a certain extent, so that high-speed production cannot be realized, the highest speed of the existing carding machine is only 250-300 m/min, the capacity is limited, the capacity cannot be improved in a large scale, and the cost is reduced.
The method 3 comprises the following steps: in the method, the chopped fibers and the tencel fibers are mixed and processed by a wet forming and water-jet entangling manufacturing method, and because the water-jet pressure cannot be very high, the natural fibers on the side are easily washed away by high-pressure water, and only low-pressure production can be adopted, the manufactured non-woven fabric is not effective and fully entangled, has poor strength, and can only be suitable for the production of certain non-woven fabrics with low strength requirements.
Therefore, it is necessary to provide an efficient, convenient and economical production device for the multilayer composite wet spunlace nonwoven fabric.
Disclosure of Invention
An object of the utility model is to solve the problem that exists among the prior art to a compound wet process water thorn non-woven fabrics apparatus for producing of multilayer is provided.
The utility model discloses the concrete technical scheme who adopts as follows:
a multilayer composite wet spunlace non-woven fabric production device comprises a spunlace supporting net, a first conveying net and a second conveying net;
the first conveying net is connected with the first wet forming device and the spunlace supporting net and is used for transferring the base layer wet fiber web output by the first wet forming device onto the spunlace supporting net;
the second conveying net is connected with the second wet forming device and the spunlace supporting net and is used for transferring the surface layer wet fiber web output by the second wet forming device to the base layer wet fiber web on the spunlace supporting net;
a plurality of groups of first spunlace devices and first water absorption boxes are arranged between the spunlace supporting net and the lap joint positions of the first conveying net and the second conveying net; each group of the first spunlace device and the first water absorption tank are respectively and correspondingly arranged above and below the spunlace support net and used for carrying out primary spunlace entanglement on the base layer wet fiber web;
a plurality of groups of second spunlace devices and second water suction boxes are arranged at the downstream of the lap joint position of the spunlace supporting net and the second conveying net; each group of second spunlace device and second water suction box are respectively and correspondingly arranged above and below the spunlace support net and used for carrying out spunlace entanglement on the surface layer wet fiber net and the base layer wet fiber net again.
Preferably, the system further comprises a fiber layer combining device positioned downstream of the second hydroentangling device and the second suction box, wherein the fiber layer combining device comprises a third conveying net and a plurality of groups of third hydroentangling devices and third suction boxes; the third conveying net is connected with the third wet forming device and the spunlace supporting net and is used for transferring the surface layer wet fiber net output by the third wet forming device to the uppermost surface layer wet fiber net on the spunlace supporting net; the groups of third spunlace devices and third suction boxes are arranged at the downstream of the lapping position of the spunlace supporting net and the third conveying net; each group of the third spunlace device and the third water suction box are respectively and correspondingly arranged above and below the spunlace support net and are used for carrying out spunlace entanglement on all surface layer wet fiber nets and base layer wet fiber nets on the spunlace support net again.
Preferably, the fiber layer composite device is provided with a plurality of fiber layer composite devices which are arranged at intervals along the moving direction of the spunlace holding net.
Preferably, the wet base web is a chopped fiber web.
Further, the length of the chopped fiber in the chopped fiber net is 15-20 mm.
Preferably, the surface layer wet fiber net is a natural plant fiber net.
Further, the length of the natural plant fibers in the natural plant fiber net is 2-5 mm.
Preferably, the hydroentangling support web and/or the first transport web and/or the second transport web is a nylon web, a metal web or a plastic web.
Compared with the prior art, the utility model, following beneficial effect has:
the utility model discloses a compound wet process water thorn non-woven fabrics apparatus for producing of multilayer can once only realize that the complex between the two-layer fibrous layer is tangled. Moreover, because each wet web layer is positioned on the spunlace tray all the time before being entangled to a sufficient strength in the whole production process, the transfer is not needed in the middle, so that the problem of insufficient strength in the middle process is not considered. This greatly reduces the fibrous material and strength requirements of the wet web of the base layer. The equipment and the process can improve the web forming speed of the fiber, enlarge the selection range of the fiber, reduce the cost of raw materials, improve the strength of products, reduce the loss and effectively overcome the defects of the previous production equipment and process.
Drawings
FIG. 1 is a schematic view of a first apparatus for producing a composite wet spunlace nonwoven fabric corresponding to method 1;
FIG. 2 is a schematic view of a first apparatus for producing a wet-process spunlace nonwoven fabric corresponding to method 2;
FIG. 3 is a schematic view of a first apparatus for producing a composite wet spunlace nonwoven fabric corresponding to method 3;
FIG. 4 is a schematic structural diagram of a two-layer composite wet spunlace nonwoven fabric production device;
fig. 5 is a schematic structural diagram of a three-layer composite wet spunlace nonwoven production device.
The reference numbers in the figures are: the device comprises a spunlace supporting net 1, a first conveying net 2, a first spunlace device 3, a first water washing tank 4, a second conveying net 5, a second spunlace device 6, a second water suction tank 7, a third conveying net 8, a third spunlace device 9 and a third water suction tank 10.
Detailed Description
The invention will be further elucidated and described with reference to the drawings and embodiments. The utility model discloses in the technical characteristics of each embodiment under the prerequisite that does not conflict each other, all can carry out corresponding combination.
In a preferred embodiment of the present invention, as shown in fig. 4, a multi-layer composite wet spunlace nonwoven fabric production device is provided, which comprises a spunlace carrier web 1, a first transport web 2 and a second transport web 5.
Wherein, the first conveying net 2 is connected with the first wet forming device and the spunlace supporting net 1, and is used for transferring the base layer wet fiber web output by the first wet forming device to the spunlace supporting net 1. The first transport web 2 may be guided by guide rolls to effect a reciprocating cycle between the first wet-forming device and the hydroentangling carrier web 1. The first wet-forming device can be implemented using a conventional wet-former, the one-end carrying surface of the first conveying wire 2 being located below the lip of the headbox of the wet-former. The slurry-water mixture inside the headbox can be sprayed through the lip so that the slurry-water mixture containing wet fibers is uniformly sprayed onto the first transport web 2 to form a wet base web and is spread on the hydroentangling carrier web 1 under the delivery of the first transport web 2. In order to enable a better fit of the wet base web to the hydroentangling carrier web 1, the first transport web 2 may be provided with a larger deflection at the overlap of the hydroentangling carrier web 1.
Similarly, a second transfer web 5 is connected to the second wet-laid forming device and to the hydroentangling support web 1 and serves to transfer the cover wet web from the second wet-laid forming device onto the base wet web on the hydroentangling support web 1. The second wet-forming device can also be implemented using a conventional wet-former, the bearing surface at one end of the second conveying wire 5 also being located below the lip of the headbox of the wet-former. The slurry-water mixture inside the head box can be sprayed out through the lip mouth, so that the slurry-water mixture containing wet fibers is uniformly sprayed on the second conveying net 5 to form a surface layer wet fiber web, and is flatly paved on the spunlace supporting net 1 under the transmission of the second conveying net 5, and the surface layer wet fiber web is actually paved on the upper surface of the base layer wet fiber web because a layer of base layer wet fiber web is already arranged on the spunlace supporting net 1 at the moment. Similarly, to provide a better fit of the wet base web to the hydroentangled carrier web 1, the second transfer web 5 may be provided with a greater degree of deflection at the overlap of the hydroentangled carrier web 1.
In addition, the composite nonwoven fabric needs to rely on a spunlace process to perform entanglement between fibers of upper and lower layers so as to increase the composite strength of the composite nonwoven fabric. Thus, the present invention requires hydroentangling each layer of wet web after it is transferred to the hydroentangling carrier web 1. In order to achieve this function, sets of first hydroentangling devices 3 and first water-absorbing boxes 4 are arranged between the hydroentangling carrier web 1 and the overlapping positions of the first transport web 2 and the second transport web 5. And each set of the first spunlace device 3 and the first water absorption box 4 are respectively and correspondingly arranged above and below the spunlace support net 1 and are used for carrying out primary spunlace entanglement on the base layer wet web. Likewise, downstream of the point of overlap of the hydroentangled carrier web 1 with the second transport web 5, a plurality of sets of second hydroentangling devices 6 and second suction boxes 7 are arranged. And each set of the second hydro-entangling device 6 and the second suction box 7 are respectively arranged above and below the hydro-entangling support net 1 and used for hydro-entangling the surface layer wet fiber net and the base layer wet fiber net again.
From this, based on the utility model discloses a compound wet process water thorn non-woven fabrics apparatus for producing of multilayer can once only realize that the complex between the two-layer fibrous layer is tangled. Moreover, since each wet web layer is positioned on the hydro-entangled web 1 before being entangled to a sufficient strength in the whole forming process, no intermediate transfer is required, and thus, the problem of insufficient strength in the intermediate process is not considered. This greatly reduces the fibrous material and strength requirements of the wet web of the base layer. Therefore, the wet fibre net of basic unit in the utility model provides a can adopt short fibre to form short fibre net through wet forming, and the preferred short fibre length in the short fibre net is 15 ~ 20 mm. The surface layer wet fiber net can be formed by adopting natural fibers through wet forming, and the length of the natural plant fibers in the natural plant fiber net is preferably 2-5 mm. The natural plant fiber can be wood pulp fiber, bamboo pulp fiber, hemp pulp fiber or cotton pulp fiber, etc.
The production process of the multilayer composite non-woven fabric by using the production device of the multilayer composite wet spunlace non-woven fabric comprises the following steps:
the chopped fibers are made into a wet fiber web by a wet forming method, the wet fiber web is conveyed by a first conveying net 2 and then uniformly falls on a spunlace supporting net 1, and is bonded with a natural plant fiber layer which is conveyed by a second conveying net 5 and is made on another wet forming device after being subjected to multiple spunlaces by a first spunlace device 3, and the natural plant fiber layer is further subjected to multiple spunlace entanglements by a second spunlace device 6 to make the wet spunlace composite non-woven fabric. The wet fiber web made by the first wet forming device is composed of chopped fibers, can bear the impact of water flow with larger pressure, and the strength of the wet fiber web can be improved. However, it should be noted that the strength of the non-woven fabric substrate obtained by the device and the production process may be reduced compared with the method 1 and the method 2 in the background art, but by adopting the device and the process, the fiber-forming speed can be improved, the fiber selection scope can be enlarged, the raw material cost can be reduced, the product strength can be improved, the loss can be reduced, and the defects of the previous production devices and processes can be effectively overcome. The process is therefore particularly suitable for products, in particular wet wipes, where the strength of the final nonwoven is not too high.
In addition, it should be noted that the above-mentioned multilayer composite wet spunlace nonwoven fabric production device is directed to a double-layer composite nonwoven fabric, but the present invention is not limited thereto, and the above-mentioned device can also be modified into a 3-layer or more multilayer composite wet spunlace nonwoven fabric production device.
As shown in fig. 5, taking a 3-layer composite wet-spunlace nonwoven production apparatus as an example, the apparatus is additionally provided with a fiber layer combining apparatus located downstream of the second spunlace apparatus 6 and the second suction box 7, compared to the apparatus of fig. 4. The fibre layer combining device comprises a third transport web 8 and a number of groups of third hydroentangling devices 9 and third suction boxes 10. The third conveying net 8 is connected with the third wet forming device and the spunlace supporting net 1 and is used for transferring the surface layer wet fiber net output by the third wet forming device to the uppermost surface layer wet fiber net on the spunlace supporting net 1. The third wet-laid forming means, the third transport web 8, overlaps the hydroentangled carrier web 1 in a manner similar to the other transport webs. A plurality of sets of third hydroentangling devices 9 and third suction boxes 10 are arranged downstream of the overlap of the hydroentangled carrier web 1 and the third transport web 8. And each set of the third spunlace device 9 and the third suction box 10 are respectively and correspondingly arranged above and below the spunlace support net 1 and are used for carrying out spunlace entanglement on all the surface layer wet fiber webs and the base layer wet fiber webs on the spunlace support net 1 again.
Of course, when more layers of composite wet spunlace nonwoven fabrics need to be produced, the fiber layer composite devices can be further added in a plurality and arranged at intervals along the moving direction of the spunlace supporting net 1.
The utility model discloses in, the material that net 8 was carried to spunlace support net 1, first transport net 2, second transport net 5, third is not limited, can adopt nylon wire, metal mesh or plastic net etc..
The above-mentioned embodiments are merely a preferred embodiment of the present invention, but it is not intended to limit the present invention. Various changes and modifications can be made by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present invention. Therefore, all the technical schemes obtained by adopting the mode of equivalent replacement or equivalent transformation fall within the protection scope of the utility model.
Claims (8)
1. A multilayer composite wet spunlace nonwoven fabric production device is characterized by comprising a spunlace supporting net (1), a first conveying net (2) and a second conveying net (5);
the first conveying net (2) is connected with the first wet forming device and the spunlace supporting net (1) and is used for transferring the base layer wet fiber web output by the first wet forming device to the spunlace supporting net (1);
the second conveying net (5) is connected with the second wet forming device and the spunlace supporting net (1) and is used for transferring the surface layer wet fiber net output by the second wet forming device to the base layer wet fiber net on the spunlace supporting net (1);
a plurality of groups of first spunlace devices (3) and first water absorption boxes (4) are arranged between the spunlace support net (1) and the lap joint positions of the first conveying net (2) and the second conveying net (5); each group of the first spunlace device (3) and the first water absorption box (4) are respectively and correspondingly arranged above and below the spunlace supporting net (1) and are used for carrying out primary spunlace entanglement on the base layer wet fiber web;
a plurality of groups of second spunlace devices (6) and second suction boxes (7) are arranged at the downstream of the lap joint position of the spunlace supporting net (1) and the second conveying net (5); each group of second water-jet devices (6) and second water-suction boxes (7) are respectively and correspondingly arranged above and below the water-jet supporting net (1) and are used for carrying out water-jet entanglement on the surface layer wet fiber net and the base layer wet fiber net again.
2. A multi-layer composite wet-spunlace nonwoven production device according to claim 1, further comprising a fiber layer combining device downstream of the second spunlace device (6) and the second suction box (7), the fiber layer combining device comprising a third transport web (8) and a plurality of sets of third spunlace devices (9) and third suction boxes (10); the third conveying net (8) is connected with the third wet forming device and the spunlace supporting net (1) and is used for transferring the surface layer wet fiber net output by the third wet forming device to the uppermost surface layer wet fiber net on the spunlace supporting net (1); the groups of third spunlace devices (9) and third suction boxes (10) are arranged at the downstream of the overlapping position of the spunlace carrier web (1) and the third conveying web (8); each group of the third water-jet devices (9) and the third water-suction boxes (10) are respectively and correspondingly arranged above and below the water-jet supporting net (1) and are used for carrying out water-jet entanglement on all surface layer wet fiber nets and base layer wet fiber nets on the water-jet supporting net (1) again.
3. A device for producing a multi-layer composite wet-laid spunlaced nonwoven fabric as claimed in claim 1, wherein a plurality of said fiber layer composite devices are arranged at intervals along the moving direction of said spunlace carrier web (1).
4. The apparatus for producing multi-layer composite wet spunlace nonwoven fabric according to claim 1, wherein the base layer wet web is a chopped fiber web.
5. The production device of the multi-layer composite wet spunlace nonwoven fabric as claimed in claim 4, wherein the length of the chopped fibers in the chopped fiber web is 15-20 mm.
6. The apparatus for producing multi-layer composite wet spunlace nonwoven fabric according to claim 1, wherein the facing wet web is a natural plant fiber web.
7. The device for producing the multilayer composite wet spunlace nonwoven fabric as claimed in claim 6, wherein the length of the natural plant fibers in the natural plant fiber web is 2-5 mm.
8. A device for producing a multi-layer composite wet-laid spunlace nonwoven as claimed in claim 1, wherein the spunlace web (1) and/or the first transport web (2) and/or the second transport web (5) is a nylon web, a metal web or a plastic web.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120641950.8U CN215103852U (en) | 2021-03-30 | 2021-03-30 | Multilayer composite wet spunlace non-woven fabric production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120641950.8U CN215103852U (en) | 2021-03-30 | 2021-03-30 | Multilayer composite wet spunlace non-woven fabric production device |
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| Publication Number | Publication Date |
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| CN215103852U true CN215103852U (en) | 2021-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120641950.8U Active CN215103852U (en) | 2021-03-30 | 2021-03-30 | Multilayer composite wet spunlace non-woven fabric production device |
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| CN (1) | CN215103852U (en) |
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- 2021-03-30 CN CN202120641950.8U patent/CN215103852U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220914 Address after: Room 314, Block D, Meidu Plaza, Gongshu District, Hangzhou City, Zhejiang Province, 310000 Patentee after: HANGZHOU CHUANGLAN NONWOVEN CLOTH Co.,Ltd. Address before: Room 1101, 11 / F, 1418-40 Moganshan Road, Hangzhou, Zhejiang 310000 Patentee before: HANGZHOU SHIFA NON-WOVEN EQUIPMENT Co.,Ltd. |
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| TR01 | Transfer of patent right |