CN118007316A - Production process of double-net-dissolved spunlaced nonwoven fabric - Google Patents

Abstract

The application relates to a production process of a double-net-dissolved spunlaced non-woven fabric, which comprises the following steps: s1, preparing fibers, and performing opening preparation; s2, mixing and carding the opened fibers into a fiber web by a carding machine; s3, preparing wood pulp, namely scattering wood pulp blocks to prepare suspension; s4, making the suspension into a wood pulp net through an inclined net type wet-process net forming machine; s5, placing the prepared fiber net above a wood pulp net, and carrying out double-net fusion through hydroentanglement to form a composite non-woven fabric; and S6, drying and winding the well-dissolved composite non-woven fabric. According to the application, the wood pulp net is placed below the fiber net, so that the possibility that the wood pulp net permeates into the fiber net when the wood pulp net is not fused is reduced, and further the possibility that the surface of the composite non-woven fabric is uneven, the hand feeling is hard, and the cloth cover is hardened is reduced.

Description

Production process of double-net-dissolved spunlaced nonwoven fabric

Technical Field

The application relates to the field of non-woven fabric production, in particular to a production process of a double-net-dissolved spunlaced non-woven fabric.

Background

The non-woven fabric is formed by directly using polymer slices, short fibers or filaments to form a net by air flow or machinery, then carrying out water needling, needle punching or hot rolling to strengthen, and finally carrying out after-treatment.

The spun-laced nonwoven fabric is produced by spraying high-pressure fine water onto one or more layers of fiber web to entangle the fibers with each other, thereby reinforcing the web to provide a certain strength.

The existing composite non-woven fabric production process is divided into an SP composite spun-laced thread and a CP composite thread; the SP composite spun-laced thread is characterized in that wood pulp is covered on fiber cloth, and the fiber cloth and the wood pulp are fused to form composite non-woven fabric through spun-laced; the CP composite wire is a fiber layer generated by a carding machine, a solidification limit layer is formed preliminarily through pre-hydroentanglement, a wood pulp layer is covered on the fiber layer through a wet method forming device, and then the fiber layer and the wood pulp layer are fused through hydroentanglement; therefore, in the production process of the composite non-woven fabric, the wood pulp layer is covered on the fiber layer, and fusion is carried out through hydroentanglement.

The wood pulp net is adopted, the process of the wood pulp net under the fiber net is adopted, the fiber net is preliminarily solidified when being pre-spun, the fiber net can be made to support the wood pulp net, the wood pulp net is arranged above the fiber net, the wood pulp net can permeate the fiber net, and therefore the wood pulp net and the fiber net have a cohesion effect, and the wood pulp net and the fiber net can be compounded more stably through the spun-laces.

However, when the wood pulp net is positioned above the fiber net, the wood pulp net permeates in the fiber net, and damages the structure of the wood pulp net, so that the surface of the wood pulp net is not smooth enough, and the produced composite non-woven fabric has uneven cloth cover, hard handfeel and hardened cloth cover.

Disclosure of Invention

In order to reduce the possibility of uneven cloth surface, hard hand feeling and even cloth surface hardening of the produced non-woven cloth caused by the penetration of the wood pulp net into the fiber net when the wood pulp net is arranged above the fiber net, the application provides a production process of a double-net-fused spunlaced non-woven cloth.

The application provides a production process of a double-net-fused spunlaced non-woven fabric, which adopts the following technical scheme:

a production process of a double-net-dissolved spunlaced non-woven fabric comprises the following steps:

s1, preparing fibers, and performing opening preparation;

s2, mixing and carding the opened fibers into a fiber web by a carding machine;

s3, preparing wood pulp, namely scattering wood pulp blocks to prepare suspension;

s4, making the suspension into a wood pulp net through an inclined net type wet-process net forming machine;

S5, placing the prepared fiber net above a wood pulp net, and carrying out double-net fusion through hydroentanglement to form a composite non-woven fabric;

and S6, drying and winding the well-dissolved composite non-woven fabric.

Through adopting above-mentioned technical scheme, compare with current compound water thorn line, saved the pre-water thorn, only through once water thorn shaping, and when producing the non-woven fabrics, open the preparation with the fibre earlier, the rethread carding machine carding becomes the web, simultaneously, break up wood pulp piece, and make the wood pulp net with the wood pulp piece that breaks up through inclined wire type wet-laid machine, then place the downside of web with the wood pulp net, the hydrogen bond absorption on wood pulp net surface, make the web adhere to the wood pulp net, and because the wood pulp net is in the web below, the web is difficult for permeating to the web to the wood pulp net that has certain mobility, and then reduce the web surface unevenness of wood pulp that permeates to the web and cause before water thorn, make the non-woven fabrics compound appear feeling hard even the possibility of cloth face plate bonding.

Optionally, the step of S5 is implemented by a hydroentangling device, the hydroentangling device includes a first workbench and a roller, a hydroentangling head, a first conveying mechanism for conveying wood pulp net, a second conveying mechanism for conveying fiber net and a driving mechanism for driving the roller to rotate, the conveying speed of the wood pulp net and the conveying speed of the fiber net on the first workbench are the same, the first conveying mechanism is located below the second conveying mechanism, the roller is rotationally arranged on the first workbench and above the second conveying mechanism, the wood pulp net and the fiber net pass from below the roller and then wind above the roller, the fiber net is attached to the roller, the hydroentangling head is arranged on the first workbench and is located on one side of the wood pulp net opposite to the roller, and the jet opening of the hydroentangling head faces towards the roller.

Through adopting above-mentioned technical scheme, when fibre web and wood pulp net water thorn, the fibre web laminating is on the roll surface of commentaries on classics roller, and the wood pulp net is at the fibre web one side of back to the roll change, and the even impact of high-pressure thin rivers of water thorn injection department is on the wood pulp net for wood pulp net and fibre web solution, thereby form the non-woven fabrics, the water thorn is impacted on the wood pulp net, makes wood pulp net and fibre net can be better solution.

Optionally, be provided with the adjustment mechanism who is used for adjusting water thorn head injection angle on the workstation, adjustment mechanism includes the alignment jig and drives alignment jig pivoted adjusting part, the alignment jig rotates to set up on the workstation, be provided with the shower on the alignment jig, water thorn head sets up on the shower, adjusting part sets up on the workstation.

Through adopting above-mentioned technical scheme, drive the water thorn head through adjusting part and alignment jig and rotate on first workstation, and then adjust the water thorn angle of water thorn head, and then reduce the long possibility that influences the water thorn effect of water thorn head live time.

Optionally, be provided with the water collecting device who is used for collecting the liquid after thorn processing on the workstation, the water collecting device includes catchment frame, wet return and water catch bowl, set up to hollow structure and set up the infiltration hole on the roller, catchment frame is fixed to be set up on the workstation and be located the roller inside, the opening direction of catchment frame is towards the thorn head, the water catch bowl sets up on the workstation, wet return one end sets up on the catchment frame, the other end sets up on the water catch bowl.

Through adopting above-mentioned technical scheme, the water thorn sprays in wood pulp net and the partial liquid of fibre net gets into the commentaries on classics roller from the infiltration hole on the commentaries on classics roller, and the water collecting frame is in the central point of commentaries on classics roller put, receives along the liquid of infiltration hole entering commentaries on classics roller in, and then reduces the liquid that gets into in the commentaries on classics roller and oozes out to fibre net and the wood pulp net below the commentaries on classics roller along the infiltration hole of commentaries on classics roller below, and then reduces the liquid that permeates in the commentaries on classics roller and influences the possibility of the mixing of wood pulp net and fibre net.

Optionally, be provided with the mounting bracket on the workstation, the water collecting frame sets up on the mounting bracket, the both ends of commentaries on classics roller and water collecting frame rotate and be connected, actuating mechanism includes driving piece and two drive wheels, one the drive wheel is coaxial to be set up on changeing the roller, another the drive wheel rotates and sets up on the workstation, and two the drive wheel meshing transmission, the driving piece sets up on the workstation and drives a drive wheel rotation of keeping away from changeing the roller.

Through adopting above-mentioned technical scheme, rotate between water collecting frame and the commentaries on classics roller and be connected, and the water collecting frame is fixed on the mounting bracket, and when changeing the roller and rotate, the fixed water collecting frame of mounting bracket for the water inlet frame of water collecting frame is towards the thorn head of water all the time, and then when reducing the possibility that the effect of collecting water of water collecting frame reduces, does not influence the normal rotation of commentaries on classics roller, and then reduces the water collecting frame and changes the possibility that the roller caused the influence to the solution of wood pulp net and fibre net.

Optionally, the frame mouth department of catchment frame is provided with the breakwater, the breakwater butt is on the inner wall of commentaries on classics roller, the breakwater is made by the rubber that has certain elastic deformation.

Through adopting above-mentioned technical scheme, the breakwater butt is on the inner wall of changeing the roller for the inside liquid of infiltration changeing the roller flows into the water collecting frame along the breakwater, thereby improves the water collecting effect of water collecting frame, simultaneously, the breakwater has certain elasticity, and the commentaries on classics roller rotates when the butt changes the roller inner wall, and the breakwater proper elastic deformation reduces the breakwater and to the influence of changeing the roller when changeing the roller rotation.

Optionally, the step S4 is implemented by an inclined wire wet-forming machine, where the inclined wire wet-forming machine includes an inclined wire conveyor belt, a spraying mechanism for spraying the suspension onto the inclined wire conveyor belt, and a conveying mechanism for driving the inclined wire conveyor belt to convey, where the inclined wire conveyor belt is disposed on a workbench, and where the conveying mechanism is disposed on the workbench and sprays the suspension toward the inclined wire conveyor belt.

Through adopting above-mentioned technical scheme, the suspension of making is deposited in the holding vessel, and sprays the suspension on the inclined wire conveyer belt evenly through injection mechanism, sprays the suspension on the inclined wire conveyer belt and gradually runs off the partial liquid in the suspension on the inclined wire conveyer belt for the suspension gradually forms wood pulp net on the inclined wire conveyer belt, and then reduces the mobility of wood pulp net.

Optionally, the injection mechanism includes holding vessel, stirring subassembly, drainage tube and injection subassembly, the suspension holding vessel sets up on the workstation and is used for storing the wood pulp suspension that waits to spray, the stirring subassembly sets up on the holding vessel, the injection subassembly sets up on the workstation and is located oblique net conveyer belt top, the one end and holding vessel intercommunication of drainage tube, the other end and injection subassembly intercommunication, during injection subassembly injection stirring subassembly stirring suspension.

Through adopting above-mentioned technical scheme, when injection mechanism sprays the suspension, start stirring subassembly earlier and drive the rotation of suspension in the holding vessel for the suspension of deposit rocks evenly, and suspension stirring rethread injection subassembly sprays on the inclined wire conveyer belt, makes the everywhere thickness of the wood pulp net that the suspension that adheres to on the inclined wire conveyer belt formed relatively even.

Optionally, the fibers of S1 are mainly PP, PAN, PE, PET, PA, PVA fibers.

By adopting the technical scheme, the fiber net takes cheaper PP, PAN, PE, PET, PA, PVA and other fibers as main materials, so that the production cost of the composite non-woven fabric is reduced.

Optionally, the suspension of S3 is configured from wood pulp and lyocell or PET.

By adopting the technical scheme, the suspension is prepared by wood pulp and short fibers, so that the production cost of the wood pulp net is reduced.

In summary, the present application includes at least one of the following beneficial technical effects:

1. When the composite non-woven fabric is produced, the produced wood pulp net is placed below the fiber net, then the wood pulp net and the fiber net are fused through water jet, the wood pulp net is placed below the fiber net, the possibility that the wood pulp net permeates into the fiber net above the fiber net is reduced, the possibility of uneven surface of the wood pulp net is further reduced, and meanwhile, the possibility that the produced composite non-woven fabric has hard hand feeling and even a cloth cover is hardened is reduced;

2. When the wood pulp net and the fiber net are dissolved, the fiber net and the wood pulp net pass through the lower part of the rotating roller and then are wound on the rotating roller upwards, so that the fiber net is attached to the roller surface of the rotating roller, and then the wood pulp net is impacted on the wood pulp net through water needling, so that the wood pulp net and the fiber net are more uniformly dissolved, and further the possibility of hardening on the cloth surface of the non-woven fabric after the dissolution is reduced;

3. The liquid sprayed on the rotating roller permeates into the rotating roller through the water seepage holes and is collected through the water collecting frame, so that the possibility that the fusion effect of the wood pulp net and the fiber net is affected due to the fact that the liquid downwards flows from the rotating roller to the fiber net and the wood pulp net below the rotating roller is reduced.

Drawings

FIG. 1 is a process flow diagram of nonwoven fabric production in an embodiment of the present application.

Fig. 2 is a schematic overall structure of an embodiment of the present application.

Fig. 3 is a schematic installation diagram of a transfer roller and a water collecting device according to an embodiment of the present application.

Fig. 4 is an enlarged view at a in fig. 3.

Fig. 5 is a schematic diagram illustrating the installation of the driving mechanism and the rotating roller according to the embodiment of the application.

FIG. 6 is a schematic illustration of the bonding of a wood pulp web to a fibrous web in an embodiment of the present application.

Reference numerals illustrate: 1. a first work table; 11. a rotating roller; 111. water seepage holes; 12. a first conveying mechanism; 13. a second conveying mechanism; 14. a water jet head; 141. a shower pipe; 15. a fibrous web; 16. a wood pulp web; 17. a mounting frame; 2. a water collecting device; 21. a water collecting frame; 211. a water bar; 22. a water collection tank; 3. an adjusting mechanism; 31. an adjusting frame; 32. an adjustment assembly; 4. a driving mechanism; 41. a driving member; 42. a driving wheel; 5. a second work table; 51. a tube to be sprayed; 6. an inclined wire conveyor belt; 61. a conveying mechanism; 7. a spraying mechanism; 71. a storage tank; 72. a stirring assembly; 73. a jetting assembly; 74. a drainage tube; 741. and a drainage pump.

Detailed Description

The application is described in further detail below with reference to fig. 1to 6.

The embodiment of the application discloses a production process of a double-net-fused spunlaced non-woven fabric. Referring to fig. 1, the process comprises the following steps:

s1, preparing fibers, and performing opening preparation;

S2, mixing and carding the opened fibers into a fiber web 15 by a carding machine;

s3, preparing wood pulp, namely scattering wood pulp blocks to prepare suspension;

s4, making the suspension into a wood pulp net 16 through an inclined wire wet-process net forming machine;

S5, placing the manufactured fiber net 15 above a wood pulp net 16, and performing double-net fusion through hydroentanglement to form a composite non-woven fabric;

and S6, drying and winding the well-dissolved composite non-woven fabric.

The fibers in S1 are mainly PP, PAN, PE, PET, PA, PVA and other fibers, so that the cost of the fibers is reduced, and the production cost of the non-woven fabric is further reduced.

The suspension in the step S3 is prepared from wood pulp and other short fibers such as lyocell fibers or PET.

Referring to fig. 2 and 3, the step of S4 is implemented by an inclined wire type wet-laid machine, which is provided with a second table 5 for placing the inclined wire type wet-laid machine, the inclined wire type wet-laid machine including an inclined wire conveyor belt 6, a spraying mechanism 7 for spraying a suspension to the inclined wire conveyor belt 6, and a conveying mechanism 61 for driving the inclined wire conveyor belt 6 to convey, the conveying mechanism 61 being installed on the second table 5, the inclined wire conveyor belt 6 being installed between the second table 5 and the conveying mechanism 61, and the inclined wire conveyor belt 6 being installed obliquely downward in a direction in which the conveying mechanism 61 is toward the hydroentangled, the spraying mechanism 7 being installed on the second table 5 and being located above the inclined wire conveyor belt 6.

The spraying mechanism 7 includes a reservoir 71, a stirring assembly 72, a drain 74, and a spraying assembly 73, the reservoir 71 being mounted on the second table 5 and for storing a suspension to be sprayed, the stirring assembly 72 being mounted on the reservoir 71, the stirring assembly 72 being for stirring the suspension in the reservoir 71.

The second workbench 5 is provided with a supporting frame, the supporting frame is provided with a pipe 51 to be sprayed, the spraying component 73 is arranged on the pipe 51 to be sprayed, the spraying direction of the spraying component 73 is towards the inclined wire conveyor belt, one end of the drainage tube 74 is arranged on the storage tank 71, the other end of the drainage tube is communicated with the pipe 51 to be sprayed, the drainage tube 74 is provided with a drainage pump 741, when suspension needs to be sprayed onto the inclined wire conveyor belt 6, the stirring component 72 drives the suspension in the storage tank 71 to rotate, the suspension is uniformly mixed and continuously stirred in the spraying process, the drainage tube 74 and the spraying component 73 are opened, the suspension is led to the spraying component 73 through the drainage tube 74, the suspension is uniformly sprayed onto the inclined wire conveyor belt 6 through the spraying component 73, and when the suspension is conveyed on the inclined wire conveyor belt 6, liquid in the suspension leaks downwards from the inclined wire conveyor belt 6, so that the suspension of wood pulp forms a wood pulp network 16 on the inclined wire conveyor belt 6.

The step S5 is realized by a hydroentangling device, which comprises a first workbench 1, a rotating roller 11, a hydroentangling head 14, a first conveying mechanism 12 for conveying a wood pulp net 16, a second conveying mechanism 13 for conveying a fiber net 15 and a driving mechanism 4 for driving the rotating roller 11 to rotate, wherein the rotating roller 11 and the hydroentangling head 14 are arranged on the first workbench 1.

Referring to fig. 3 and 4, the first conveying mechanism 12 and the second conveying mechanism 13 respectively drive the wood pulp net 16 and the fiber net 15 to synchronously convey on the workbench, the first conveying mechanism 12 is installed on the first workbench 1, the fiber net 15 is conveyed on the first conveying mechanism 12, the second conveying mechanism 13 is positioned below the first conveying mechanism 12, the wood pulp net 16 conveyed on the inclined net conveyor belt 6 is conveyed below the fiber net 15 through the second conveying mechanism 13, and further the wood pulp net 16 is driven to convey, when the fiber net 15 is close to the wood pulp net 16, due to the fact that hydrogen bonds exist on the surface of the fiber net 16, the fiber net 16 adsorbs the fiber net 15, the wood pulp net 16 and the fiber net 15 are synchronously conveyed, and the wood pulp net 16 is below the fiber net 15, so that the possibility that the wood pulp net 16 permeates downwards into the fiber net 15 to cause uneven surface of the wood pulp net 16 is reduced.

Referring to fig. 3 and 4, the rotary roller 11 is rotatably installed on the first working table 1, the rotary roller 11 is processed into a hollow structure, water seepage holes 111 are formed in the rotary roller 11, the rotary roller 11 is located at one side of the first conveying mechanism 12, which is opposite to the inclined wire conveyor belt 6, and is located above the fiber web 15, the fiber web 15 and the wood pulp web 16 pass through from below the rotary roller 11 and then upwards bypass the rotary roller 11, the fiber web 15 is attached to the roller surface of the rotary roller 11, and an adjusting mechanism 3 for adjusting the injection angle of the water jet head 14 is installed on the working table.

The adjustment mechanism 3 includes alignment jig 31 and drives alignment jig 31 pivoted adjusting part 32, and alignment jig 31 rotates to install on the workstation, installs shower 141 on the alignment jig 31, and the hydroentangled head 14 is installed on shower 141, and the jet direction of hydroentangled head 14 is towards roller 11, and the liquid of hydroentangled head 14 injection department is impacted on the wood pulp layer for wood pulp layer and fibrous layer dissolve gradually, and then form the non-woven fabrics.

The adjusting component 32 can be a driving motor, the driving motor is installed on the first workbench 1, the driving motor drives the adjusting frame 31 to rotate on the first workbench 1, and then drives the adjusting frame 31 to rotate on the first workbench 1, so that the injection angle of the injection head is adjusted, and the mixing effect of the wood pulp layer and the fiber layer is improved.

Referring to fig. 3 and 4, the water collecting device 2 for collecting the liquid after the water needling treatment is installed on the first workbench 1, the water collecting device 2 comprises a water collecting frame 21, a water return pipe and a water collecting tank 22, the water collecting frame 21 is fixedly installed on the first workbench 1, the water collecting frame 11 is rotationally connected with two ends of the water collecting frame 21, the water collecting frame 21 is located inside the water collecting frame 11, water retaining strips 211 are installed on two side edges of a water inlet of the water collecting frame 21, the water retaining strips 211 are made of rubber materials with certain elastic deformation, one side of the water retaining strips 211 away from the water collecting frame 21 is abutted on the inner wall of the water collecting frame 11, the possibility that the liquid on the inner wall of the water collecting frame 11 flows downwards to the fiber web 15 below the water collecting frame 11 along the inner wall of the water collecting frame 11 is reduced, the water collecting tank 22 is installed on the first workbench 1, one end of the water return pipe is installed on the water collecting frame 22, the other end of the water return pipe is installed on the water collecting frame 21, the water collecting frame 16 and the fiber web 15 are penetrated into the liquid inside the water collecting frame 11 through the water inlet 111, one side of the water retaining strips 211 is located above the water retaining frame 21, the water retaining strips 21 can flow to the fiber web 15 along the water retaining strips 21, and the water retaining strips can flow to the water retaining strips 21 below the fiber web 11 can flow to the water collecting frame 11.

Referring to fig. 5, the driving mechanism 4 includes a driving member 41 and two driving wheels 42, one driving wheel 42 is fixedly installed on the rotating roller 11 and sleeved with the rotating roller 11, the other driving wheel 42 is rotatably installed on the first workbench 1, the two driving wheels 42 are engaged for transmission, the driving member 41 includes a second driving motor, the second driving motor is installed on the first workbench 1, the second driving motor is fixedly connected with one driving wheel 42 far away from the rotating roller 11, the second driving motor drives one driving wheel 42 to rotate, and then drives the other driving wheel 42 to rotate, so that the rotating roller 11 is driven to rotate, and when the rotating roller 11 rotates, the fiber web 15, the wood pulp web 16 and the dissolved non-woven fabric on the rotating roller 11 are driven to rotate.

Referring to fig. 6, when the wood pulp web 16 and the fiber web 15 are wound around the rotating roller 11 and the fiber web 15 is attached to the rotating roller 11, the water jet in the water jet head 14 is sprayed on the wood pulp web 16, so that the wood pulp web 16 and the fiber web 15 are fused, and in the fusion process, the punching of the water jet head 14 is stable, so that the surface of the composite non-woven fabric is flat.

The implementation principle of the production process of the double-net-dissolved spunlaced nonwoven fabric provided by the embodiment of the application is as follows:

The suspension in the storage tank 71 is stirred by the stirring assembly 72 so that the short fibers and the wood pulp contained in the suspension sprayed on the inclined wire conveyor belt by the spraying assembly 73 are uniform, and the suspension sprayed on the inclined wire conveyor belt 6 can be relatively uniform after the wood pulp net 16 is formed.

After the wood pulp net 16 is formed, the wood pulp net 16 is conveyed to the first conveying mechanism 12 under the conveying of the conveying mechanism 61 and conveyed to the lower part of the rotary roller 11 by the first conveying mechanism 12, meanwhile, the second conveying roller conveys the fiber layer above the first conveying roller, the fiber layer is contacted with the wood pulp layer when conveyed to the lower part of the rotary roller 11, the fiber layer is attached to the surface of the wood pulp net 16 under the action of hydrogen bonds on the surface of the wood pulp layer, when the rotary roller 11 rotates to the state that the fiber layer is attached to the roller surface of the rotary roller 11, the possibility that the wood pulp net 16 flows downwards due to the flowability of the wood pulp layer when being positioned above the fiber net 15, so that the surface of the wood pulp layer is uneven is reduced, the water jet head 14 sprays liquid on the wood pulp net 16, so that the wood pulp net 16 and the fiber net 15 are gradually fused, and the fusion effect of the wood pulp net 16 is improved.

The liquid sprayed on the wood pulp net 16 enters the inside of the rotary roller 11 from the water seepage holes 111 on the rotary roller 11, the liquid above the collecting frame flows into the water collecting frame 21 along the water retaining strips 211, and then flows out of the rotary roller 11 through the water return pipe on the water collecting frame 21, so that the possibility that the liquid flows downwards from the rotary roller 11 to the fiber net 15 below the rotary roller 11 and the wood pulp net 16 is reduced, and the subsequent fusion effect is influenced.

The above is a preferred embodiment of the present application, and is not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (10)

1. A production process of a double-net-dissolved spunlaced nonwoven fabric is characterized by comprising the following steps: the method comprises the following steps:

s1, preparing fibers, and performing opening preparation;

S2, mixing and carding the opened fibers into a fiber web (15) through a carding machine;

s3, preparing wood pulp, namely scattering wood pulp blocks to prepare suspension;

S4, making the suspension into a wood pulp net (16) through an inclined net type wet-process net forming machine;

S5, placing the manufactured fiber net (15) above a wood pulp net (16), and performing double-net fusion through hydroentanglement to form a composite non-woven fabric;

and S6, drying and winding the well-dissolved composite non-woven fabric.

2. The process for producing the double-net dissolved spunlaced nonwoven fabric according to claim 1, which is characterized in that: the step of S5 is realized through a water jet device, the water jet device comprises a first workbench (1) and a rotary roller (11) arranged on the first workbench (1), a water jet head (14), a first conveying mechanism (12) for conveying a wood pulp net (16), a second conveying mechanism (13) for conveying the fiber net (15) and a driving mechanism (4) for driving the rotary roller (11) to rotate, the conveying speed of the wood pulp net (16) and the fiber net (15) on the first workbench (1) is the same, the first conveying mechanism (12) is positioned below the second conveying mechanism (13), the rotary roller (11) is rotatably arranged on the first workbench (1) and above the second conveying mechanism (13), the wood pulp net (16) and the fiber net (15) pass through from the lower part of the rotary roller (11) and then are wound to the upper part of the rotary roller (11), the water jet head (14) is arranged on the first workbench (1) and is positioned on the opposite to the rotary roller (11) and is faced to the jet head (14).

3. The production process of the double-net dissolved spunlaced nonwoven fabric as claimed in claim 2, wherein the production process is characterized in that: the water jet device is characterized in that an adjusting mechanism (3) for adjusting the jet angle of the water jet head (14) is arranged on the first workbench (1), the adjusting mechanism (3) comprises an adjusting frame (31) and an adjusting component (32) for driving the adjusting frame (31) to rotate, the adjusting frame (31) is rotatably arranged on the first workbench (1), a spray pipe (141) is arranged on the adjusting frame (31), the water jet head (14) is arranged on the spray pipe (141), and the adjusting component (32) is arranged on the first workbench (1).

4. The production process of the double-net dissolved spunlaced nonwoven fabric as claimed in claim 2, wherein the production process is characterized in that: the utility model discloses a water collecting device, including first workstation (1) and second workstation (1), be provided with on first workstation (1) and be used for collecting water thorn liquid after handling water collector (2), water collector (2) are including catchment frame (21), wet return and water catch bowl (22), set up to hollow structure and set up infiltration hole (111) on changeing roller (11) commentaries on classics roller (11), catchment frame (21) are fixed to be set up on first workstation (1) and be located changeing roller (11) inside, the opening direction of catchment frame (21) is towards water thorn head (14), water catch bowl (22) set up on first workstation (1), wet return one end sets up on water catch frame (21), the other end sets up on water catch bowl (22).

5. The process for producing the double-net dissolved spunlaced nonwoven fabric according to claim 4, which is characterized in that: the utility model discloses a water collecting device, including first workstation (1), first workstation (1) is provided with mounting bracket (17), water collecting frame (21) set up on mounting bracket (17), the both ends rotation of commentaries on classics roller (11) and water collecting frame (21) are connected, actuating mechanism (4) are including driving piece (41) and two drive wheels (42), one drive wheel (42) are coaxial to be set up on commentaries on classics roller (11), another drive wheel (42) rotate and set up on first workstation (1), and two drive wheel (42) meshing transmission, driving piece (41) set up on first workstation (1) and drive a drive wheel (42) rotation of keeping away from commentaries on classics roller (11).

6. The process for producing the double-net dissolved spunlaced nonwoven fabric according to claim 4, which is characterized in that: the water collecting frame is characterized in that a water retaining bar (211) is arranged at the frame opening of the water collecting frame (21), the water retaining bar (211) is abutted to the inner wall of the rotary roller (11), and the water retaining bar (211) is made of rubber with certain elastic deformation.

7. The production process of the double-net dissolved spunlaced nonwoven fabric as claimed in claim 2, wherein the production process is characterized in that: the step of S4 is realized through inclined wire type wet-laid machine, be provided with second workstation (5) by first workstation (1), inclined wire type wet-laid machine includes inclined wire conveyer belt (6), sprays injection mechanism (7) of suspension to inclined wire conveyer belt (6) and is used for driving conveyer mechanism (61) of inclined wire conveyer belt (6) conveying, inclined wire conveyer belt (6) set up on second workstation (5), conveyer mechanism (61) set up on second workstation (5), injection mechanism (7) set up on second workstation (5) and spray the suspension towards inclined wire conveyer belt (6).

8. The process for producing the double-net dissolved spunlaced nonwoven fabric according to claim 7, which is characterized in that: the spraying mechanism (7) comprises a storage tank (71), a stirring assembly (72), a drainage tube (74) and a spraying assembly (73), wherein the storage tank (71) is arranged on the second workbench (5) and used for storing wood pulp suspension to be sprayed, the stirring assembly (72) is arranged on the storage tank (71), the spraying assembly (73) is arranged on the second workbench (5) and located above the inclined net conveyor belt (6), one end of the drainage tube (74) is communicated with the storage tank (71), the other end of the drainage tube is communicated with the spraying assembly (73), and the stirring assembly (72) is used for stirring the suspension when the spraying assembly (73) sprays.

9. The process for producing the double-net dissolved spunlaced nonwoven fabric according to claim 1, which is characterized in that: the fibers of S1 are mainly PP, PAN, PE, PET, PA, PVA fibers.

10. The process for producing the double-net dissolved spunlaced nonwoven fabric according to claim 1, which is characterized in that: the suspension of S3 is made up of wood pulp and lyocell or PET.