A method for manufacturing a reinforced one-way moisture-wicking hydroentangled nonwoven fabric

Abstract

The application discloses a manufacturing method of reinforced one-way moisture-conducting spunlace non-woven fabric, and the manufacturing method comprises the following steps: firstly, processing cotton fibers through a known textile process to obtain an upper cotton web; then, processing wood pulp fibers through a known textile process to obtain a core web; again, processing cotton fibers through a known textile process to obtain a lower cotton web; next, stacking the upper cotton web, the core web and the lower cotton web from top to bottom in sequence to obtain a rough fabric; then, performing front surface water jetting on the rough fabric; after the front surface water jetting is completed, performing back surface water jetting, wherein the water jetting pressure of the back surface water jetting is smaller than that of the front surface water jetting; after the back surface water jetting is completed, obtaining a spunlace fabric; and finally, processing the spunlace fabric through a known textile process, and the method ends after the processing is completed. The application can not only realize one-way moisture-conducting and environmental protection, but also avoid moisture absorption and agglomeration of wood pulp fibers.

Description

Technical Field

[0001] This invention relates to a unidirectional moisture-wicking nonwoven fabric, belonging to the field of functional nonwoven fabric technology, and particularly to a method for manufacturing an enhanced unidirectional moisture-wicking hydroentangled nonwoven fabric. Background Technology

[0002] As society continues to progress and science and technology advance by leaps and bounds, various new materials and processes are constantly being applied to the textile industry. However, no matter how the new materials, processes, and functions change, consumers still prioritize pure cotton products and place higher demands on them.

[0003] Pure cotton products are made of natural fibers, and their texture is comfortable and skin-friendly, making them commonly used in baby and maternity products, such as diapers. However, pure cotton products also have drawbacks, such as poor longitudinal moisture wicking properties, making it difficult for moisture to dissipate and potentially causing a stuffy feeling. Therefore, adding more functions to pure cotton products has become a consumer trend and a market pursuit.

[0004] Furthermore, existing technologies include unidirectional moisture-wicking nonwoven fabrics, which allow liquids to diffuse rapidly from one side of the nonwoven fabric to the other, overcoming the poor longitudinal moisture-wicking properties of pure cotton products. However, existing technologies often employ finishing processes to treat the surface of the nonwoven fabric during its preparation, aiming to achieve a hydrophilic-hydrophobic effect on one side and a hydrophobic-hydrophobic effect on the other. These finishing processes involve chemical reagents, which pose varying degrees of harm to human health and the environment, resulting in poor environmental friendliness.

[0005] It is evident that existing technologies cannot enable cotton-containing products to simultaneously possess the functions of unidirectional moisture wicking and good environmental friendliness.

[0006] The information disclosed in this background section is intended only to enhance understanding of the overall background of this application and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0007] The purpose of this invention is to overcome the defects and problems in the existing technology that make it difficult to make cotton-containing products have both unidirectional moisture-wicking and good environmental protection functions at the same time, and to provide a manufacturing method for enhanced unidirectional moisture-wicking spunlace nonwoven fabric that can easily make cotton-containing products have both unidirectional moisture-wicking and good environmental protection functions at the same time.

[0008] To achieve the above objectives, the technical solution of the present invention is: a method for manufacturing a reinforced unidirectional moisture-wicking spunlace nonwoven fabric, the manufacturing method comprising the following steps:

[0009] Step 1: Process cotton fibers using known textile processes to obtain the upper cotton web;

[0010] Step 2: Process the wood pulp fibers using known textile processes to obtain the core web;

[0011] Step 3: Process the cotton fibers using known textile processes to obtain the lower cotton web;

[0012] Step 4: First, layer the cotton web, core web, and lower cotton web from top to bottom to obtain the raw fabric. Then, perform front hydroentangling on the raw fabric. Front hydroentangling is the process of hydroentangling from the upper cotton web to the lower cotton web. After the front hydroentangling is completed, perform reverse hydroentangling, which is the process of hydroentangling from the lower cotton web to the upper cotton web. The hydroentangling pressure of reverse hydroentangling is less than that of front hydroentangling. After the reverse hydroentangling is completed, the pierced fabric is obtained.

[0013] Step 5: After the spunlace fabric is successively debleached, washed, and dried, a reinforced unidirectional moisture-wicking spunlace nonwoven fabric is obtained, and this method is completed.

[0014] In the fourth step, during the front hydroentangling process, the lower cotton web is laid on the front reflective screen. Under the action of the front hydroentangling jet, the wood pulp fibers in the core web are driven by the jet to change from a parallel state to an inclined or vertical state, so as to interweave between the two layers of cotton web or enter the lower cotton web to entangle and bind together. Under the action of the front hydroentangling jet penetrating the cotton web and the jet reflected by the front reflective screen, the cotton fibers in the upper and lower cotton webs undergo displacement and interweaving, and generate mutual entanglement or binding to reinforce each other.

[0015] In the fourth step, during the reverse hydroentangling process, the upper cotton web is laid on the reverse reflective screen. Under the action of the reverse hydroentangling jet, some of the wood pulp fibers in the lower cotton web are carried by the jet to enter the upper cotton web. At the same time, under the action of the reverse hydroentangling jet and the jet reflected by the reverse reflective screen, the cotton fibers in the lower and upper cotton webs are displaced, interlaced, and become entangled or bound together to reinforce each other.

[0016] In the fourth step, during the front hydroentangling process, the front hydroentangling pressure is 10-20 MPa; during the reverse hydroentangling process, the reverse hydroentangling pressure is 5-10 MPa.

[0017] The density of the upper cotton web obtained in the first step is less than the density of the lower cotton web obtained in the third step.

[0018] In the first step, the weight of the upper cotton web is 15-30 g / m³, and in the third step, the weight of the lower cotton web is 40-60 g / m³.

[0019] In the second step, the weight of the core mesh is 20-30 grams per cubic meter.

[0020] In the first step, the known textile process refers to the sequential processes of opening, carding, and web laying.

[0021] In the third step, the known textile process refers to the sequential processes of opening, combing, and web laying.

[0022] In the second step, the known textile process refers to the sequential processes of opening, carding, and air-flow web forming.

[0023] A product, wherein the product is the result of the above-described method for manufacturing reinforced unidirectional moisture-wicking spunlace nonwoven fabric, namely the reinforced unidirectional moisture-wicking spunlace nonwoven fabric.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] 1. In the manufacturing method of the reinforced unidirectional moisture-wicking spunlace nonwoven fabric of the present invention, the reinforced unidirectional moisture-wicking all-cotton spunlace nonwoven fabric is made by hydroentangling an upper cotton web, a core web, and a lower cotton web on both the front and back sides. The density of the upper cotton web is less than that of the lower cotton web (before hydroentangling). During hydroentangling, the forward hydroentangling pressure is greater than the reverse hydroentangling pressure, causing the wood pulp fibers of the core layer to exhibit an increasing gradient distribution between the upper and lower cotton webs. This further widens the density difference between the upper and lower cotton webs, creating a differential capillary effect in terms of thickness, thus achieving unidirectional moisture wicking. Simultaneously, due to the increasing gradient distribution of wood pulp fibers between the upper and lower cotton webs, a wettability gradient is created in the thickness of the nonwoven fabric, further enhancing its unidirectional moisture-wicking performance. Furthermore, this design achieves unidirectional moisture wicking effect through only physical changes. As can be seen, this method can realize differential capillary effect and wetting gradient effect through physical structure. No chemical reagents are used in the manufacturing process, so it is not harmful to the human body or the environment. Therefore, this invention can achieve both unidirectional moisture wicking and good environmental protection.

[0026] 2. In the manufacturing method of the enhanced unidirectional moisture-wicking hydroentangled nonwoven fabric of the present invention, during the hydroentangling process, the wood pulp fibers in the core layer change from a parallel state to an inclined or upright state, interspersed and dispersed among the cotton fibers under the action of the water needles. After the wood pulp fibers absorb moisture, the cotton fibers prevent the wood pulp fibers from agglomerating due to moisture absorption, thereby avoiding the phenomenon of moisture absorption and agglomeration of wood pulp fibers and enhancing the comfort performance of the nonwoven fabric. Therefore, the present invention can prevent the moisture absorption and agglomeration of wood pulp fibers.

[0027] 3. In the manufacturing method of the enhanced unidirectional moisture-wicking spunlace nonwoven fabric of the present invention, the differential capillary effect formed, and the wetting gradient structure with gradually increasing wetting from top to bottom, facilitate the penetration of liquid from the upper cotton web to the lower cotton web, while making penetration difficult. Therefore, when applied to hygiene materials such as diapers or sanitary napkins, the present invention can effectively reduce backflow and improve product comfort. Thus, when applied to hygiene materials such as diapers or sanitary napkins, the present invention results in less backflow and higher comfort.

[0028] 4. In the manufacturing method of the enhanced unidirectional moisture-wicking spunlace nonwoven fabric of the present invention, wood pulp fibers are distributed in the upper and lower cotton webs. Due to the excellent moisture absorption properties of wood pulp fibers, the moisture absorption properties of the product are enhanced. Furthermore, when this product is applied to sanitary napkins or diapers, the distribution of wood pulp fibers in the upper cotton web that comes into contact with the skin accelerates the absorption rate of liquid by the upper cotton web, thereby improving the overall moisture absorption properties of the product. Therefore, the present invention has strong moisture absorption properties. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the present invention.

[0030] Figure 2 This is a schematic diagram of the stacked structure of the upper and middle cotton web, the core web, and the lower cotton web of the present invention.

[0031] Figure 3 This is a schematic diagram of the front and back hydroentanglement in this invention.

[0032] Figure 4 This is a schematic diagram of the front and back hydroentangled structures in Embodiment 3 of the present invention.

[0033] Figure 5 This is a schematic diagram of the front and back hydroentangled structures in Embodiment 4 of the present invention.

[0034] In the diagram: 1. Upper cotton web, 11. Reverse reflective screen, 12. Upper nozzle, 2. Core web, 3. Lower cotton web, 31. Forward reflective screen, 32. Lower nozzle, 4. Cotton fiber, 5. Wood pulp fiber, 6. Raw fabric, 7. Post-punched fabric, 81. Drum No. 1, 82. Drum No. 2, 83. Drum No. 1, 84. Drum No. 2, 85. Drum No. 2, 86. Drum No. 3, 87. Drum No. 3, 88. Drum No. 3, 89. Detailed Implementation

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] See Figure 1 — Figure 4 A method for manufacturing an enhanced unidirectional moisture-wicking spunlace nonwoven fabric, the method comprising the following steps:

[0037] Step 1: The cotton fiber 4 is processed using known textile technology to obtain the upper cotton web 1;

[0038] Step 2: Process the wood pulp fiber 5 using a known textile process to obtain the core web 2;

[0039] Step 3: Process the cotton fiber 4 using known textile processes to obtain the lower cotton web 3;

[0040] Step 4: First, stack the upper cotton web 1, core web 2, and lower cotton web 3 in the order from top to bottom to obtain the raw fabric 6. Then, perform front hydroentangling on the raw fabric 6. Front hydroentangling is the process of hydroentangling from the upper cotton web 1 to the lower cotton web. After the front hydroentangling is completed, perform reverse hydroentangling. Reverse hydroentangling is the process of hydroentangling from the lower cotton web 3 to the upper cotton web. The hydroentangling pressure of reverse hydroentangling is less than that of front hydroentangling. After the reverse hydroentangling is completed, the pierced fabric 7 is obtained.

[0041] Step 5: After the spunlace fabric 7 is successively debleached, washed, and dried, it becomes a reinforced unidirectional moisture-wicking spunlace nonwoven fabric, thus concluding this method.

[0042] In the fourth step, during the front hydroentangling process, the lower cotton web 3 is laid on the front reflective mesh curtain 31. Under the action of the front hydroentangling jet, the wood pulp fibers 5 in the core web 2 are driven by the jet to change from a parallel state to an inclined or vertical state, so as to interweave between the two layers of cotton web or enter the lower cotton web 3 to entangle and bind together. Under the action of the front hydroentangling jet penetrating the cotton web and the jet reflected by the front reflective mesh curtain 31, the cotton fibers in the upper cotton web 1 and the lower cotton web 3 undergo displacement and interweaving, and generate mutual entanglement or mutual binding to reinforce each other.

[0043] In the fourth step, during the reverse hydroentangling process, the upper cotton web 1 is laid on the reverse reflective mesh curtain 11. Under the action of the reverse hydroentangling jet, some of the wood pulp fibers 5 in the lower cotton web 3 are carried by the jet to enter the upper cotton web 1. At the same time, under the action of the reverse hydroentangling jet and the jet reflected by the reverse reflective mesh curtain 11, the cotton fibers in the lower cotton web 3 and the upper cotton web 1 are displaced, interlaced, and become entangled or bound together to reinforce each other.

[0044] In the fourth step, during the front hydroentangling process, the front hydroentangling pressure is 10-20 MPa; during the reverse hydroentangling process, the reverse hydroentangling pressure is 5-10 MPa.

[0045] The density of the upper cotton web 1 obtained in the first step is less than the density of the lower cotton web 3 obtained in the third step.

[0046] In the first step, the weight of the upper cotton web 1 is 15-30 g / m³, and in the third step, the weight of the lower cotton web 3 is 40-60 g / m³.

[0047] In the second step, the weight of the core mesh 2 is 20-30 grams per cubic meter.

[0048] In the first step, the known textile process refers to the sequential processes of opening, carding, and web laying.

[0049] In the third step, the known textile process refers to the sequential processes of opening, combing, and web laying.

[0050] In the second step, the known textile process refers to the sequential processes of opening, carding, and air-flow web forming.

[0051] A product, wherein the product is the result of the above-described method for manufacturing reinforced unidirectional moisture-wicking spunlace nonwoven fabric, namely the reinforced unidirectional moisture-wicking spunlace nonwoven fabric.

[0052] This invention also includes the following:

[0053] In the manufacturing method of a reinforced unidirectional moisture-wicking spunlace nonwoven fabric of the present invention, in the first step, cotton fibers 4 are opened, carded, and cross-laid to obtain an upper cotton web 1 with a basis weight of 15-30 g / m³. If the basis weight of the upper cotton web 1 is less than 15-30 g / m³, the cotton web is too thin and not easy to lay into a fiber web. In the second step, wood pulp fibers 5 are opened, carded, and air-laid to obtain a core web 2 with a basis weight of 20-30 g / m³. The short wood pulp fibers 5 have a length of 4-6 mm and a fiber fineness of 2.4-3.0 denier, and have excellent moisture absorption properties. The core web 2 prepared from wood pulp fibers 5 is relatively loose and has low strength. To facilitate the slippage of wood pulp fibers 5 during hydroentangling, if the basis weight of the core web 2 is too low, the amount of wood pulp fibers 5 will be insufficient, thus failing to achieve rapid moisture absorption. If the basis weight of the core web 2 is too high, there will be too much wood pulp fiber 5, preventing it from fully penetrating into the upper cotton web 1 and the lower cotton web 3. This results in some wood pulp fibers 5 remaining between the upper and lower cotton webs, causing them to clump together after absorbing moisture, reducing the comfort performance of the nonwoven fabric. In the third step, the cotton fibers 4 are opened, carded, and cross-laid to obtain the lower cotton web 3 with a basis weight of 40-60 g / m³. The density of the lower cotton web 3 is greater than that of the upper cotton web. 1. Density: This facilitates the creation of a density difference between the upper cotton web 1 and the lower cotton web 3. When the lower cotton web 3 is within the range of 40-60 g / m³, the fabric will not be too thick, thus affecting wearing comfort. Fourth step: First, layer the upper cotton web 1, core web 2, and lower cotton web 3 from top to bottom. Then, perform front-side hydroentangling on the upper cotton web 1, with a hydroentangling pressure of 10-20 MPa. Under the impact of the hydroentangling, the wood pulp fibers 5 of the core web 2 change from a horizontal to a vertical or inclined state, interlacing between the cotton fibers 4 of the lower cotton web 3, giving the core web 2 superior breathability and moisture-wicking properties. Due to the insulating effect of the cotton fibers 4... This process avoids the moisture absorption and agglomeration of wood pulp fibers 5. Due to the higher pressure of the upper hydroentangling, more wood pulp fibers 5 are inserted into the lower cotton web 3. After the front hydroentangling is completed, the lower cotton web 3 is then hydroentangled on the reverse side at a pressure of 5-10 MPa. This lower pressure allows the water jets to impact the wood pulp fibers 5 that are not tightly entangled with the lower cotton web 3, causing them to move to the upper cotton web 1 and entangle with the cotton fibers 4. This achieves a gradient distribution of wood pulp fibers 5 between the upper and lower cotton webs 1 and 3 after both hydroentangling processes, with a greater number of wood pulp fibers 5 inserted into the lower cotton web 3. If the pressure of the front and reverse hydroentangling is too high, the cotton fibers 4 and wood pulp fibers 5 may be cut. If the pressure is too low, the entanglement between fibers will be poor, and the strength of the nonwoven fabric will decrease.

[0054] The lower cotton web 3 has a higher fiber web density and smaller inter-fiber pore size, while the upper cotton web 1 has a lower fiber web density and larger inter-fiber pore size. After hydroentangling, the porosity and pore diameter of the upper and lower cotton webs 3 differ, forming a large-pore-small-pore structure. This, in turn, creates a differential capillary effect in terms of thickness, achieving unidirectional moisture conduction in the nonwoven fabric. Simultaneously, the wood pulp fibers 5 change from a horizontal to a vertical or inclined state during the hydroentangling process on both the front and back sides, interlacing between the upper and lower cotton webs 1 and 3, which facilitates liquid flow. During the front and back hydroentangling processes, the upper cotton web 1 and the lower cotton web 3 employed different hydroentangling pressures. The upper cotton web 1 had a higher hydroentangling pressure, while the lower cotton web 3 had a lower hydroentangling pressure. Consequently, the wood pulp fiber 5 was more abundant in the lower cotton web 3, resulting in superior moisture absorption performance of the lower cotton web 3 compared to the upper cotton web 1. This further widened the difference in wetting properties between the upper and lower cotton webs, enhancing the unidirectional moisture wicking performance of the nonwoven fabric. Simultaneously, the wood pulp fiber 5 exhibited an increasing gradient distribution between the upper and lower cotton webs, leading to a more fluffy upper cotton web 1 and a denser lower cotton web 3. This further widened the density difference between the upper and lower cotton webs, resulting in a greater difference in porosity and pore size, further enhancing the unidirectional moisture wicking effect and comfort performance of the nonwoven fabric. Meanwhile, due to the difference in pore size and wettability between the upper cotton web 1 and the lower cotton web 3, liquid can only move from the side with larger pore size to the side with smaller pore size. The liquid absorbed by the core web 2, which is in contact with the lower cotton web 3, is not easy to penetrate from the side with smaller pore size to the side with larger pore size. This enhances the water-locking ability of the lower cotton web 3, greatly reduces the amount of backflow in the nonwoven fabric, and improves the dryness and comfort of the nonwoven fabric.

[0055] The wood pulp fiber 5 used in this invention can not only achieve one-way moisture wicking, but also overcome the defect that wood pulp fiber 5 is prone to agglomeration after absorbing moisture, thus avoiding the impact of moisture absorption on product comfort. At the same time, it can still give full play to the soft and smooth properties of wood pulp fiber, making this product suitable for use in hygiene materials such as diapers.

[0056] Example 1:

[0057] See Figure 1 — Figure 2 A method for manufacturing an enhanced unidirectional moisture-wicking spunlace nonwoven fabric, the method comprising the following steps:

[0058] Step 1: The cotton fiber 4 is processed using known textile technology to obtain the upper cotton web 1;

[0059] Step 2: Process the wood pulp fiber 5 using a known textile process to obtain the core web 2;

[0060] Step 3: Process the cotton fiber 4 using known textile processes to obtain the lower cotton web 3;

[0061] Step 4: First, stack the upper cotton web 1, core web 2, and lower cotton web 3 in the order from top to bottom to obtain the raw fabric 6. Then, perform front hydroentangling on the raw fabric 6. Front hydroentangling is the process of hydroentangling from the upper cotton web 1 to the lower cotton web 3. After the front hydroentangling is completed, perform reverse hydroentangling. Reverse hydroentangling is the process of hydroentangling from the lower cotton web 3 to the upper cotton web 1. The hydroentangling pressure of reverse hydroentangling is less than that of front hydroentangling. After the reverse hydroentangling is completed, the pierced fabric 7 is obtained.

[0062] Step 5: After the spunlace fabric 7 is successively debleached, washed, and dried, it becomes a reinforced unidirectional moisture-wicking spunlace nonwoven fabric, thus concluding this method.

[0063] A product, wherein the product is the result of the above-described method for manufacturing reinforced unidirectional moisture-wicking spunlace nonwoven fabric, namely the reinforced unidirectional moisture-wicking spunlace nonwoven fabric.

[0064] Example 2:

[0065] The basic content is the same as in Example 1, except that:

[0066] Please see Figure 3 In the fourth step:

[0067] During the front hydroentangling process, the lower cotton web 3 is laid on the front reflective mesh curtain 31. Under the action of the front hydroentangling jet, the wood pulp fibers 5 in the core web 2 are driven by the jet to change from a parallel state to an inclined or vertical state, so as to interweave between the two cotton webs or enter the lower cotton web 3 to entangle and bind together. Under the action of the front hydroentangling jet penetrating the cotton web and the jet reflected by the front reflective mesh curtain 31, the cotton fibers in the upper cotton web 1 and the lower cotton web 3 undergo displacement and interweaving, and generate mutual entanglement or mutual binding to reinforce each other.

[0068] During the reverse hydroentangling process, the upper cotton web 1 is laid on the reverse reflective screen 11. Under the action of the reverse hydroentangling jet, some of the wood pulp fibers 5 in the lower cotton web 3 are carried by the jet to enter the upper cotton web 1. At the same time, under the action of the reverse hydroentangling jet and the jet reflected by the reverse reflective screen 11, the cotton fibers in the lower cotton web 3 and the upper cotton web 1 are displaced, interlaced, and become entangled or bound together to reinforce each other.

[0069] Example 3:

[0070] The basic content is the same as in Example 2, except that:

[0071] Please see Figure 4In the figure, the reverse reflective mesh curtain 11 and the forward reflective mesh curtain 31 are the support mesh curtains in the flat hydroentangling process. When the raw fabric 6 is conveyed by the forward reflective mesh curtain 31 to the lower part of the upper nozzle 12, the upper nozzle 12 performs forward hydroentangling downward. The jet that pierces the cotton web is emitted on the forward reflective mesh curtain 31, generating a reflected water flow for reinforcement. Subsequently, when the raw fabric 6 is conveyed by the reverse reflective mesh curtain 11 to the lower part of the lower nozzle 32, the lower nozzle 32 performs reverse hydroentangling downward. The jet that pierces the cotton web is emitted on the reverse reflective mesh curtain 11, generating a reflected water flow for reinforcement, finally obtaining the pierced fabric 7.

[0072] Example 4:

[0073] The basic content is the same as in Example 2, except that:

[0074] Please see Figure 5 In the diagram, the reverse reflective mesh curtain 11 and the forward reflective mesh curtain 31 are drum covers in the rotary drum hydroentangling process, namely drum cover 83 and drum cover 85. When the raw fabric 6 is conveyed to drum cover 83 on the first rotary drum 81, nozzle 84 on the side sprays water into the raw fabric 6 in the lower left direction for forward hydroentangling. The jet that pierces the cotton web is emitted on drum cover 83, generating a reflected water flow for reinforcement. Subsequently, when the raw fabric 6 is conveyed to drum cover 85 on the second rotary drum 82, nozzle 86 on the side sprays water into the raw fabric 6 in the lower right direction for reverse hydroentangling. The jet that pierces the cotton web is emitted on drum cover 85, generating a reflected water flow for reinforcement, finally resulting in the pierced fabric 7.

[0075] The above description is only a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present invention should be included within the scope of protection set forth in the claims.

Claims

1. A method of manufacturing a reinforced, unidirectionally wicking hydroentangled nonwoven fabric, characterized by: The manufacturing method comprises the following steps: The first step: cotton fibers (4) are processed by a known textile process to obtain an upper cotton web (1); The second step: wood pulp fibers (5) are processed by a known textile process to obtain a core web (2); The third step: cotton fibers (4) are processed by a known textile process to obtain a lower cotton web (3); The fourth step: first, the upper cotton web (1), the core web (2), and the lower cotton web (3) are stacked in sequence from top to bottom to obtain a rough cloth (6); then, the rough cloth (6) is subjected to front water jetting, which is a water jetting process from the upper cotton web (1) to the lower cotton web; after the front water jetting is completed, back water jetting is performed, which is a water jetting process from the lower cotton web (3) to the upper cotton web; the water jetting pressure of the back water jetting is less than that of the front water jetting; after the back water jetting is completed, a water jetted cloth (7) is obtained; The fifth step: after the water jetted cloth (7) is subjected to desizing, bleaching, washing, and drying in sequence, an enhanced one-way moisture-wicking water jetted nonwoven fabric is obtained, and the method ends; The density of the upper cotton web (1) obtained in the first step is less than the density of the lower cotton web (3) obtained in the third step; The length of the wood pulp fibers (5) is 4-6 mm, and the fiber fineness is 2.4-3.0 denier.

2. The method of claim 1, wherein the method is characterized by: In the fourth step, in the front water jetting process, the lower cotton web (3) is laid on a forward reflection screen (31); under the action of the jet flow of the front water jetting, the wood pulp fibers (5) in the core web (2) are driven by the jet flow to change from a parallel state to an inclined or vertical state, so as to be inserted between the two cotton webs or enter the lower cotton web (3) to entangle and bond, and the cotton fibers in the upper cotton web (1) and the lower cotton web (3) are displaced and inserted under the action of the jet flow of the front water jetting and the jet flow reflected by the forward reflection screen (31), and are entangled or bonded with each other to be reinforced.

3. The method of claim 2, wherein the method further comprises the step of: 3-1) applying a binder to the surface of the wetlaid nonwoven fabric. 3-2) drying the wetlaid nonwoven fabric. In the fourth step, in the back water jetting process, the upper cotton web (1) is laid on a reverse reflection screen (11); under the action of the jet flow of the back water jetting, part of the wood pulp fibers (5) in the lower cotton web (3) are carried by the jet flow to enter the upper cotton web (1); at the same time, under the action of the jet flow of the back water jetting and the jet flow reflected by the reverse reflection screen (11), the cotton fibers in the lower cotton web (3) and the upper cotton web (1) are displaced and inserted, and are entangled or bonded with each other to be reinforced.

4. The method of claim 1, 2 or 3, wherein: In the fourth step, in the front water jetting process, the front water jetting pressure is 10-20 MPa; in the back water jetting process, the back water jetting pressure is 5-10 MPa.

5. The method of claim 1, 2 or 3, wherein: In the first step, the grammage of the upper cotton web (1) is 15-30 g / m3; in the third step, the grammage of the lower cotton web (3) is 40-60 g / m3.

6. The method of claim 1, 2 or 3, wherein: In the second step, the grammage of the core web (2) is 20-30 g / m3.

7. The manufacturing method of the enhanced one-way moisture-wicking water jetted nonwoven fabric according to claim 1, 2, or 3, characterized in that: In the first step, the known textile process refers to the processes of opening, carding, and laying in sequence. In the third step, the known textile process refers to the process of opening, carding and laying in sequence.

8. The method of claim 1, 2 or 3, wherein: the wetlaid nonwoven fabric is a wetlaid nonwoven fabric having a basis weight of 10 to 50 g / m2, a thickness of 0.1 to 0.5 mm, and a weight per unit area of 10 to 50 g / m2. In the second step, the known textile process refers to the process of opening, carding and air-laying in sequence.

9. A product characterized by: The product is the product of the manufacturing method of the reinforced one-way moisture-wicking spunlace nonwoven fabric according to claim 1, namely the reinforced one-way moisture-wicking spunlace nonwoven fabric.

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