A mixed fiber nonwoven fabric for wiping, and production equipment and production method

Abstract

The present invention discloses a mixed-fiber non-woven fabric for wiping, and production equipment and a production method. The non-woven fabric of the present invention is made by entanglement of plant staple fibers, polypropylene melt-blown staple fibers, and polypropylene spunbond filaments. The plant staple fibers are used as one of the raw materials, so that the non-woven fabric of the present invention has a high wood pulp content, that is, a high cellulose content, a high degree of biodegradability, is green and environmentally friendly, and has low energy consumption in the production process. The polypropylene spunbond filaments are added by entanglement, so that the whole fabric is more wear-resistant, stronger, more durable, and has a long service life.

Description

Technical Field

[0001] The present invention relates to the technical field of non-woven fabrics, and in particular to a mixed-fiber non-woven fabric for wiping, and production equipment and a production method. Background Art

[0002] Nonwoven wipes are manufactured through a nonwoven processing technique, followed by finishing and slitting to create a wiping cloth. Compared to traditional wiping materials, new nonwoven wipes feature a unique fiber entanglement structure with larger interfiber pores, resulting in a fluffier material with a wide range of thicknesses, making them suitable for diverse applications. Based on the processing technology, nonwoven wipe materials can be categorized into chemically bonded nonwovens, thermally bonded nonwovens, needle-punched nonwovens, spunlace nonwovens, meltblown nonwovens, and spunbond nonwovens.

[0003] Currently, the nonwoven wipes on the market are mainly spunlace nonwovens and chemically bonded nonwovens. To ensure product strength, the wood pulp content of these nonwovens is often less than 50%, or even contains no wood pulp fibers, and may be reinforced with chemical adhesives. This makes the materials difficult to biodegrade and environmentally unfriendly.

[0004] In recent years, a new class of wood pulp meltblown nonwovens has emerged. Made by entangling plant staple fibers with polypropylene meltblown fibers through high-speed airflow, this material requires no chemical adhesives and can contain up to 80% wood pulp, making it a new, environmentally friendly wiping material. However, due to the fineness of meltblown or wood pulp fibers, these materials lack strength, abrasion resistance, and porosity, making them prone to breaking when wiping stubborn stains and having limited dirt retention. Publication number CN109629118A discloses a wipe comprising upper and lower layers of a meltblown fiber web and a middle layer of a wood pulp fiber web. The meltblown fiber web has an adhesive attached to its surface, and the meltblown fibers of the meltblown fiber web are interspersed within the wood pulp fiber web. The invention also discloses a method for manufacturing the wipe, which can be used to manufacture the absorbent wipe of the invention. Because the adhesive is attached to the surface of the meltblown fiber web, an adhesive film is formed on the surface of the meltblown fiber web. This prevents the surface meltblown fibers from fuzzing and fluffing due to friction during use, and further prevents the middle layer of plant staple fibers from falling out, resulting in "linting" during use. The wipe is produced by stacking multiple fiber layers, resulting in insufficient overall wear resistance and a short service life. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a mixed fiber non-woven wiping fabric with strong wear resistance and long service life, as well as a production equipment and production method.

[0006] To achieve the above-mentioned purpose, the present invention provides a solution as follows: a mixed fiber non-woven fabric for wiping, comprising a first structure and a second structure, wherein the first structure is formed by entanglement of plant staple fibers and polypropylene meltblown staple fibers, and the second structure is formed by entanglement of the first structure and polypropylene spunbond filaments; wherein the mass ratio of the polypropylene spunbond filaments to the first structure is 10-20%:80-90%, and the mass ratio of the plant staple fibers to the polypropylene meltblown staple fibers is 80-95%:5-20%.

[0007] Furthermore, the plant short fibers include one or more of wood pulp short fibers, bamboo short fibers, cotton short fibers, leaf short fibers, grass short fibers, and bast fibers.

[0008] Furthermore, the ratio of the polypropylene spunbond filaments entangled with the first structure is 20-50%.

[0009] The beneficial effects of the present invention are as follows: the non-woven fabric of the present invention is made by entanglement of plant staple fibers, polypropylene melt-blown staple fibers, and polypropylene spunbond filaments. Among them, the plant staple fibers are used as one of the raw materials, so that the non-woven fabric of the present invention has a high wood pulp content, that is, a high cellulose content, a high degree of biodegradability, is green and environmentally friendly, and has low energy consumption in the production process. The polypropylene spunbond filaments are added by entanglement, and the overall fabric is more wear-resistant, stronger, more durable, and has a long service life.

[0010] The present invention also includes a non-woven fabric production device, including an extrusion mechanism, a melt-blowing mechanism, a wood pulp opening mechanism, and a drafting channel. The drafting channel is vertically arranged, a top feed port is opened at the top of the drafting channel, a discharge port and a melt-blowing die head are provided on the side wall of the drafting channel, the discharge port is located above the melt-blowing die head, the extrusion mechanism is connected to the top feed port of the drafting channel, the melt-blowing mechanism is connected to the melt-blowing die head, and the wood pulp opening mechanism is connected to the discharge port. The beneficial effects of the present invention are as follows: the overall structure is practical and reliable. The production equipment first provides an extrusion mechanism, a melt-blowing mechanism, and a wood pulp opening mechanism to respectively transport polypropylene spunbond filaments, polypropylene melt-blown staple fibers, and wood pulp staple fibers to the drafting channel, and then entangle with each other in the drafting channel to form a mixed fiber type wiping non-woven fabric, and finally output from the discharge port through a high-speed airflow. The overall structure is practical and reliable, and a mixed fiber type wiping non-woven fabric can be quickly produced.

[0011] Furthermore, the extrusion mechanism includes a first hopper, a first screw extruder, an extrusion channel, a spinning manifold, a monomer extraction device, and a cold air box. The first hopper is connected to the first screw extruder, the extrusion screw of the first screw extruder is connected to the extrusion channel, the extrusion channel is connected to the spinning manifold, the spinning manifold is connected to the top feed port of the drafting channel, the monomer extraction device is connected to the spinning manifold, and the cold air box is respectively connected to the spinning manifold and the top feed port of the drafting channel. After adopting the above structure, the present invention realizes the delivery of polypropylene spunbond filaments to the drafting channel.

[0012] Furthermore, the meltblowing mechanism includes a second hopper, a second screw extruder, and a melt channel, wherein the second hopper is connected to the second extruder, the extrusion screw of the second screw extruder is connected to the melt channel, and the melt channel is connected to the meltblowing die head. The present invention adopts the above structure to output high-temperature polypropylene meltblown staple fibers, so that the polypropylene meltblown staple fibers can be entangled with the plant staple fibers and hot-rolled and consolidated with the plant staple fibers.

[0013] Furthermore, metering pumps are provided in the extrusion channel and the melt channel, and filters are provided in the extrusion channel and the melt channel. The present invention realizes metering and filtering by adopting the above structure.

[0014] Furthermore, the wood pulp opening mechanism includes a crusher, a blower, a feed channel, and a carding machine, wherein the crusher is connected to the feed channel, the feed channel is connected to the carding machine, and the carding machine is connected to the discharge port, wherein the blower is arranged at the feed end of the feed channel. After adopting the above structure, the present invention realizes the output of plant short fibers.

[0015] Furthermore, a meter is provided between the carding machine and the discharge port.

[0016] Furthermore, a fiber entanglement zone is provided on the bottom side of the drawing channel, the discharge port and the meltblowing die head are respectively connected to the fiber entanglement zone, and the width from the drawing channel to the fiber entanglement zone gradually decreases.

[0017] Furthermore, an airflow guiding device is provided in the fiber entanglement zone. The present invention adopts the above structure to guide the polypropylene spunbond filaments to entangle with the first structure.

[0018] The present invention also includes a method for producing a mixed fiber nonwoven wiping fabric, comprising the following steps:

[0019] S1. Start the first screw extruder, the first screw extruder conveys polypropylene fiber through the extrusion channel to the conveying spinning manifold, and then start the cold air box, the cold air box delivers high-speed airflow, cooperates with the monomer extraction device and the spinning manifold, extrudes the polypropylene melt, cools it to form polypropylene spunbond filaments, and conveys it to the drafting channel;

[0020] S2. The polypropylene spunbond filaments are drawn into thinner filaments in the drawing channel by a high-speed air flow and are transported vertically downward until they move to the left half of the fiber entanglement zone;

[0021] S3 starts the second screw extruder, the second screw extruder delivers high-temperature polypropylene meltblown fiber through the melt channel to the meltblown die, and then delivers polypropylene meltblown staple fibers through the meltblown die to the right half of the fiber entanglement zone;

[0022] S4. The pulverizer is started to pulverize the raw materials into fluff pulp and plant staple fibers. The fluff pulp and plant staple fibers are then blown by a high-speed airflow output by a blower and transported to a carding machine through a feed channel. The fluff pulp and plant staple fibers are then combed and neatly combed by the carding machine. Finally, the plant staple fibers are discharged through a discharge port to the right half of the fiber entanglement zone, where they are entangled with the polypropylene meltblown staple fibers to form a first structure.

[0023] S5. The first structure in step S4 moves to the left half of the fiber entanglement zone and is entangled with the spunbond web layer through a high-speed airflow to form a non-woven fabric, which is then output through the bottom discharge port of the drafting channel. The present invention adopts the above-mentioned method to produce the non-woven fabric of the present invention, wherein polypropylene spunbond filaments, polypropylene meltblown staple fibers, and plant staple fibers are respectively output through an extrusion mechanism, a meltblown mechanism, and a wood pulp opening mechanism, and then the polypropylene meltblown staple fibers and the plant staple fibers are first entangled to form the first structure, wherein, since the polypropylene meltblown staple fibers are in a high-temperature state when output, the polypropylene meltblown staple fibers and the plant staple fibers can also be hot-rolled when entangled, and then the first structure and the polypropylene spunbond filaments are entangled in the fiber entanglement zone, so that the fibers are entangled with each other and hot-rolled to form a wiping non-woven fabric with a large wood pulp content, which does not contain chemical adhesives and can achieve no lint, high strength, softness and fluffiness, stronger overall wear resistance, and long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the overall structure diagram of the production equipment of the present invention.

[0025] Figure 2 It is a structural diagram of a carding machine of the present invention.

[0026] Among them, 11 is the first hopper, 12 is the first screw extruder, 13 is the extrusion channel, 14 is the spinning box, 15 is the monomer extraction device, 16 is the cold air box, 17 is the metering pump, 18 is the filter, 21 is the second hopper, 22 is the second screw extruder, 23 is the melt channel, 24 is the meltblown die head, 31 is the crusher, 32 is the feeding channel, 33 is the carding machine, 34 is the discharge port, 341 is the feeding curtain, 342 is the feeding roller, 343 is the opening roller, 344 is the chest cylinder, 345 is the working roller, 346 is the stripping roller, 347 is the transport roller, 348 is the large cylinder, 35 is the blower, 36 is the meter, 4 is the drafting channel, 41 is the top feed port, 42 is the lower exhaust fan, 43 is the fiber entanglement area, and 5 is the airflow guiding device. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] See attached Figure 1 To the attached Figure 2 As shown, a mixed fiber non-woven fabric for wiping includes a first structure and a second structure, the first structure is formed by entanglement of plant staple fibers and polypropylene meltblown staple fibers, and the second structure is formed by entanglement of the first structure and polypropylene spunbond filaments; wherein the mass ratio of the polypropylene spunbond filaments to the first structure is 10-20%:80-90%, and the mass ratio of the plant staple fibers to the polypropylene meltblown staple fibers is 80-95%:5-20%.

[0030] In this embodiment, the plant short fibers include but are not limited to one or more of wood pulp short fibers, bamboo short fibers, cotton short fibers, leaf short fibers, grass short fibers, and bast fibers.

[0031] In this embodiment, the ratio of polypropylene spunbond filaments entangled with the first structure is 20-50%.

[0032] The present invention also includes a production device for mixed fiber non-woven fabric for wiping, including an extrusion mechanism, a meltblowing mechanism, a wood pulp opening mechanism, and a drawing channel 4. The drawing channel 4 is vertically arranged, and a top feed port 41 is opened at the top of the drawing channel 4. The side wall of the drawing channel 4 is provided with a discharge port 34 and a meltblowing die head 24. The discharge port 34 is located on the upper side of the meltblowing die head 24. The extrusion mechanism is connected to the top feed port 41 of the drawing channel 4, the meltblowing mechanism is connected to the meltblowing die head 24, and the wood pulp opening mechanism is connected to the discharge port 34.

[0033] In this embodiment, the extrusion mechanism includes a first hopper 11, a first screw extruder 12, an extrusion channel 13, a spinning box 14, a monomer extraction device 15, and a cold air box 16. The first hopper 11 is connected to the first screw extruder 12, the extrusion screw of the first screw extruder 12 is connected to the extrusion channel 13, the extrusion channel 13 is connected to the spinning box 14, the spinning box 14 is connected to the top feed port 41 of the drafting channel 4, the monomer extraction device 15 is connected to the spinning box 14, and the cold air box 16 is respectively connected to the spinning box 14 and the top feed port 41 of the drafting channel 4.

[0034] In this embodiment, the monomer extraction device 15 can refer to a Chinese patent with publication number CN103320883A and the patent name of monomer extraction device for chemical fiber yarn. The monomer extraction device 15 is connected to the spinning box 14 and is used to directly extract the monomer structure formed during the micro-pore ejection process of the spinneret of the spinning box 14 through the suction hood to prevent the monomer structure from diffusing into the workshop or condensing onto the spinneret of the spinning box 14.

[0035] In this embodiment, the meltblowing mechanism includes a second hopper 21, a second screw extruder 22, and a melt channel 23. The second hopper 21 is connected to the second extruder, the extrusion screw of the second screw extruder 22 is connected to the melt channel 23, and the melt channel 23 is connected to the meltblowing die head 24.

[0036] In this embodiment, a metering pump 17 is provided in each of the extrusion channel 13 and the melt channel 23 , and a filter 18 is provided in each of the extrusion channel 13 and the melt channel 23 .

[0037] In this embodiment, the meltblowing die head 24 can adjust the angle and the distance from the drawing channel 4, so as to facilitate the control of the degree of entanglement between fibers by adjusting the angle and distance.

[0038] In this embodiment, the melt channel 23 between the metering pump 17 and the meltblowing die head 24 is a detachable and heatable melt hose, which facilitates the adjustment of the angle of the meltblowing die head 24 and the distance to the drawing channel 4.

[0039] In this embodiment, the wood pulp loosening mechanism includes a crusher 31, a blower 35, a feeding channel 32, and a combing machine 33. The crusher 31 is connected to the feeding channel 32, the feeding channel 32 is connected to the combing machine 33, and the combing machine 33 is connected to the discharge port 34, wherein the blower 35 is arranged at the feed end of the feeding channel 32.

[0040] In this embodiment, the carding machine 33 includes a feeding curtain 341, a feeding roller 342, a hair opening roller 343, a breast cylinder 344, a working roller 345, a hair stripping roller 346, a transport roller 347, and a large cylinder 348. After the raw material is crushed by the crusher 31, it is transported to the feeding curtain 331 through the feeding channel 32, and is fed between the two feeding rollers 342 by the feeding curtain 331. The feeding roller 342 tightly holds the raw material and accepts the combing of the hair opening roller 343 to achieve preliminary loosening. The loosened raw material is transferred to the breast cylinder 344 through the hair opening roller 343, and is combed between the two working rollers 345 and the two hair stripping rollers 346 of the breast cylinder 344. The block-shaped raw material is combed into bundles of fibers to form plant staple fibers. The pre-combed plant staple fibers are transferred to the large cylinder 348 through the transport roller 347 and then transported to the discharge port 34.

[0041] In this embodiment, a meter 36 is provided between the carding machine 33 and the discharge port 34 .

[0042] In this embodiment, a fiber entanglement zone 43 is provided on the bottom side of the drawing channel 4, the discharge port 34 and the meltblowing die head 24 are respectively connected to the fiber entanglement zone 43, and the width of the drawing channel 4 to the fiber entanglement zone 43 gradually decreases.

[0043] In this embodiment, an airflow guiding device is provided directly below the fiber entanglement zone 34. The airflow guiding device is a lower exhaust fan 42, which guides the airflow and guides the high-speed airflow in the drafting channel 1 to be discharged.

[0044] The present invention also includes a method for producing a mixed fiber nonwoven wiping fabric, comprising the following steps:

[0045] S1. Start the first screw extruder 12, which delivers polypropylene fibers to the conveying spinning box 14 through the extrusion channel 13 and the filter 18, and then start the cold air box 16. The cold air box 16 delivers high-speed airflow to the spinning box 14 and the top feed port 41 of the drafting channel 4, and cooperates with the monomer extraction device 15 and the spinning box 14 to extrude and cool the polypropylene melt to form polypropylene spunbond filaments, and then deliver them to the drafting channel 4.

[0046] S2. The polypropylene spunbond filaments are stretched into thinner filaments in the stretching channel 4 by high-speed airflow and transported vertically downward until they move to the left half of the fiber entanglement zone 43. Some of the polypropylene spunbond filaments will accumulate in this area to form a spunbond web layer.

[0047] S3. Start the second screw extruder 22, which delivers high-temperature polypropylene melt-blown fibers to the melt-blown die 24 through the melt channel 23 and the filter 18. The high-temperature polypropylene melt-blown staple fibers are rapidly cooled and crystallized under the action of the cold air from the cold air box 16 to form finer soft staple fibers, and are then delivered to the right half of the fiber entanglement zone 43 through the melt-blown die 24.

[0048] S4. Start the crusher 31, which crushes the wood pulp raw materials (wood boards, paper pulp, bamboo, etc.) into fluff pulp and plant staple fibers. The high-speed airflow output by the blower 35 blows the fluff pulp and plant staple fibers, and the fluff pulp and plant staple fibers are transported to the carding machine 33 through the feeding channel 32. The fluff pulp and plant staple fibers are then combed neatly by the carding machine 33, and the plant staple fibers can be evenly dispersed in the airflow to avoid clumping. Finally, the plant staple fibers are output to the right half of the fiber entanglement area 43 through the discharge port 34, and entangled with the polypropylene melt-blown staple fibers to form a first structure; wherein, the plant staple fibers are entangled with the high-temperature polypropylene melt-blown staple fibers, so that the connection between the plant staple fibers and the polypropylene melt-blown staple fibers is hot-rolled consolidation, and the plant staple fibers can be used in large quantities without using chemical adhesives and will not fall off.

[0049] S5. The first structure in step S4 moves to the left half of the fiber entanglement zone 43 and is entangled with part of the spunbond web layer through high-speed airflow to form a non-woven fabric, which is then output through the bottom discharge port 42 of the drafting channel 4.

[0050] The non-woven fabric of this embodiment formed in this way is different from a simple stacked non-woven fabric structure. The non-woven fabric of this embodiment is more of an entanglement between fibers, and only a small part of the filaments will form a single layer, which effectively improves the overall wear resistance and strength, and is soft and fluffy.

[0051] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any person skilled in the art can, without departing from the scope of the present invention, utilize the technical content disclosed above to make further possible variations and modifications to the present invention, or modify the present invention into equivalent embodiments with equivalent variations. Therefore, any equivalent variations made in accordance with the principles of the present invention without departing from the content of the present invention's technical solution should be included within the scope of protection of the present invention.

Claims

1. A mixed fiber nonwoven fabric production equipment for wiping, characterized by: The invention comprises an extrusion mechanism, a melt-blowing mechanism, a wood pulp opening mechanism, and a drawing channel (4), wherein the drawing channel (4) is vertically arranged, a top feed port (41) is opened at the top of the drawing channel (4), a discharge port (34) and a melt-blowing die head (24) are arranged on the side wall of the drawing channel (4), the discharge port (34) is located on the upper side of the melt-blowing die head (24), the extrusion mechanism is connected to the top feed port (41) of the drawing channel (4), the melt-blowing mechanism is connected to the melt-blowing die head (24), and the wood pulp opening mechanism is connected to the discharge port (34); A fiber entanglement zone (43) is provided on the bottom side of the interior of the drafting channel (4), the discharge port (34) and the meltblowing die head (24) are respectively connected to the fiber entanglement zone (43), and the width of the drafting channel (4) to the fiber entanglement zone (43) gradually decreases; The mixed fiber non-woven fabric production equipment is used to produce mixed fiber non-woven fabric for wiping, wherein the mixed fiber non-woven fabric for wiping includes a first structure and a second structure, wherein the first structure is formed by entanglement of plant staple fibers and polypropylene meltblown staple fibers, and the second structure is formed by entanglement of the first structure and polypropylene spunbond filaments; wherein the mass ratio of the polypropylene spunbond filaments to the first structure is 10-20%:80-90%, and the mass ratio of the plant staple fibers to the polypropylene meltblown staple fibers is 80-95%:5-20%; The plant short fibers include one or more of wood pulp short fibers, bamboo short fibers, cotton short fibers, leaf short fibers, grass short fibers, and bast fibers.

2. The mixed fiber nonwoven fabric production equipment for wiping according to claim 1, characterized in that: The extrusion mechanism includes a first hopper (11), a first screw extruder (12), an extrusion channel (13), a spinning box (14), a monomer extraction device (15), and a cold air box (16), wherein the first hopper (11) is connected to the first screw extruder (12), the extrusion screw of the first screw extruder (12) is connected to the extrusion channel (13), the extrusion channel (13) is connected to the spinning box (14), the spinning box (14) is connected to the top feed port (41) of the drafting channel (4), the monomer extraction device (15) is connected to the spinning box (14), and the cold air box (16) is respectively connected to the spinning box (14) and the top feed port (41) of the drafting channel (4).

3. The mixed fiber nonwoven fabric production equipment for wiping according to claim 2, characterized in that: The meltblowing mechanism comprises a second hopper (21), a second screw extruder (22), and a melt channel (23); the second hopper (21) is connected to the second extruder; the extrusion screw of the second screw extruder (22) is connected to the melt channel (23); and the melt channel (23) is connected to a meltblowing die head (24).

4. The mixed fiber nonwoven fabric production equipment for wiping according to claim 3, characterized in that: A metering pump (17) is provided in both the extrusion channel (13) and the melt channel (23), and a filter (18) is provided in both the extrusion channel (13) and the melt channel (23).

5. The mixed fiber nonwoven fabric production equipment for wiping according to claim 4, characterized in that: The wood pulp opening mechanism comprises a crusher (31), an air blower (35), a feeding channel (32), and a carding machine (33), wherein the crusher (31) is connected to the feeding channel (32), the feeding channel (32) is connected to the carding machine (33), and the carding machine (33) is connected to the discharge port (34), wherein the air blower (35) is arranged at the feeding end of the feeding channel (32).

6. The mixed fiber nonwoven fabric production equipment for wiping according to claim 5, characterized in that: A plant short fiber meter (36) is provided between the carding machine (33) and the discharge port (34).

7. A production method using the mixed fiber nonwoven wiping fabric production equipment according to claim 6, characterized in that: The following steps are involved: S1. Start the first screw extruder (12), which delivers polypropylene fibers to the delivery spinning box (14) through the extrusion channel (13), and then start the cold air box (16). The cold air box (16) delivers high-speed airflow, cooperates with the monomer extraction device (15) and the spinning box (14), and extrude and cool the polypropylene melt to form polypropylene spunbond filaments, which are then delivered to the drafting channel (4); S2. The polypropylene spunbond filaments are drawn into thinner filaments in the drawing channel (4) by a high-speed air flow and are transported vertically downward until they move to the left half of the fiber entanglement zone (43); S3. Starting the second screw extruder (22), the second screw extruder (22) conveys the polypropylene melt-blown fibers to the melt-blown die (24) through the melt channel (23), and then conveys the polypropylene melt-blown staple fibers to the right half of the fiber entanglement zone (43) through the melt-blown die (24); S4. The crusher (31) is started, and the crusher (31) crushes the raw materials into fluff pulp and plant staple fibers. The fluff pulp and plant staple fibers are then blown by the high-speed airflow output by the blower (35), and are transported to the carding machine (33) through the feeding channel (32). The fluff pulp and plant staple fibers are then combed neatly by the carding machine (33), and finally the plant staple fibers are output to the right half of the fiber entanglement zone (43) through the discharge port (34), and are entangled with the polypropylene melt-blown staple fibers to form a first structure. S5. The first structure in step S4 moves to the left half of the fiber entanglement zone (43) and is entangled with the spunbond web layer through high-speed airflow to form a non-woven fabric, which is then output through the bottom discharge port (42) of the stretching channel (4).

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