Super-soft antibacterial non-woven fabric for sanitary napkins and preparation method

Abstract

The invention discloses a super-soft antibacterial non-woven fabric for sanitary napkins and a preparation method, and relates to the related field of non-woven fabrics, the super-soft antibacterial non-woven fabric comprises a super-soft layer, a tensile enhancement layer, an antibacterial layer, a first fiber net and a second fiber net. Through collaborative design of various functional fibers, the super-soft antibacterial fabric has the three advantages of super softness, tensile strength and antibacterial property; after the superfine denier polyester fibers are subjected to hydrophilic treatment, the softness and hygroscopicity are remarkably improved, so that the surface layer is fine and skin-friendly in touch; the TPU nanofiber net and the crosslinked polyethylene microfiber net form a reinforcing layer, so that the non-woven fabric is endowed with excellent tensile resistance and tear resistance; the PLA antibacterial fibers are fused with a double antibacterial mechanism of nano silver and titanium dioxide, lasting antibacterial safety is ensured, and meanwhile, silicone oil emulsion finishing is combined, so that the whole material has comprehensive performance of breathability, durability and sanitation while keeping softness.

Description

Technical Field

[0001] The invention relates to the field of non-woven fabrics, and in particular to an ultra-soft antibacterial non-woven fabric for sanitary napkins and a preparation method thereof. Background Art

[0002] Nonwoven fabrics for sanitary napkins are functional materials designed for female sanitary products. They are usually used for the surface layer, guide layer or bottom layer. Their main characteristics are softness, breathability, skin-friendliness, good moisture absorption and strength. This type of nonwoven fabric is made through spunbond, hot air, hot rolling and other processes. It can effectively improve the comfort and performance of sanitary napkins. At the same time, it has certain antibacterial and anti-leakage functions. It is one of the important materials to ensure women's health and comfort experience.

[0003] Chinese Patent Publication No.: CN219927120U A super soft antibacterial composite non-woven fabric for sanitary napkins, comprising an upper non-woven fabric layer and a lower non-woven fabric layer, a water-absorbing layer is arranged between the upper non-woven fabric layer and the lower non-woven fabric layer, water-absorbing cotton is arranged inside the water-absorbing layer, a plurality of vertical flow-guiding cottons are connected to the water-absorbing cottons, the top of the vertical flow-guiding cottons penetrates and extends out of the upper non-woven fabric layer, a plurality of horizontal flow-guiding cottons are connected between the vertical flow-guiding cottons, a plurality of water-permeable holes are arranged on the upper non-woven fabric layer, an elastic water-permeable layer is filled between the vertical flow-guiding cottons and the horizontal flow-guiding cottons, an antibacterial layer is arranged above the vertical flow-guiding cottons and the horizontal flow-guiding cottons, and the beneficial effects are improved water absorption performance, improved diversion effect, improved water absorption effect, improved softness of the sanitary napkin, and will not increase the thickness of the sanitary napkin, improve comfort, and the antibacterial layer improves the antibacterial effect of the sanitary napkin.

[0004] The above patents and prior art have the following problems in actual use: the tensile strength is ignored when achieving ultra-flexibility, resulting in weak durability and low tear resistance, and in the processing process, in order to achieve flexibility, it is necessary to immerse it in silicone oil emulsion, and the immersion process is mostly left stationary, resulting in poor immersion effect and affecting work efficiency. Summary of the invention

[0005] Therefore, in order to solve the above-mentioned shortcomings, the present invention provides an ultra-soft antibacterial non-woven fabric for sanitary napkins and a preparation method thereof.

[0006] In order to achieve the above object, the present invention adopts the following technical scheme: a method for preparing ultra-soft antibacterial non-woven fabric for sanitary napkins, the specific steps are as follows:

[0007] Preparation of S1 ultra-soft layer fiber: 1.0~1.5dtex ultra-fine polyester fiber is selected to ensure that the fiber diameter is less than 10μm, and the fiber is hydrophilized using polyethylene glycol PEG modifier;

[0008] S2 Preparation of the first fiber web and the second fiber web: The TPU nanofiber web is prepared by electrospinning, and the fiber diameter is 200-500 nm. The cross-linked polyethylene microfiber web is prepared by melt-blowing, and the microfiber diameter is 1-3 μm.

[0009] S3 antibacterial layer fiber preparation: polylactic acid fiber is mixed with nano silver solution and subjected to high temperature curing treatment, and a nano titanium dioxide coating is prepared by a sol-gel method and coated on the surface of the polylactic acid fiber;

[0010] S4 non-woven fabric forming: preparation of the ultra-soft layer, using hot air web forming process to make the fiber present a low-density fluffy structure, and slightly spraying the fiber to set the shape; preparation of the tensile reinforcement layer, compounding the TPU nanofiber mesh with the cross-linked polyethylene microfiber mesh to form a staggered reinforcement layer, spraying the TPU fiber mesh by electrospinning, and depositing the XLPE fiber mesh by melt-blowing. The ultrasonic spot welding technology is used to partially bond the reinforcement layer and the ultra-soft layer; preparation of the antibacterial layer, and the antibacterial fiber is formed into the bottom structure by the spray bonding method;

[0011] S5 composite process: the ultra-soft layer and the anti-stretching reinforcement layer are hot-pressed with light pressure, and the bottom of the anti-stretching reinforcement layer and the antibacterial layer are hot-pressed with glue, followed by cooling at room temperature to set the shape;

[0012] S6 post-treatment process: Use auxiliary softening finishing device to soften the composite non-woven fabric with silicone oil emulsion, and the concentration of silicone oil emulsion is 1.5%~2.5%.

[0013] Preferably, the auxiliary softening and finishing device includes a processing box, a guide roller group arranged at both ends of the processing box for guiding the non-woven fabric, a driving motor arranged at the front end of the processing box, and a sweeping and lifting mechanism installed in the processing box and connected to the output shaft of the driving motor at the left end, wherein the sweeping and lifting mechanism is used to position and lift the non-woven fabric.

[0014] Preferably, the sweeping and lifting mechanism includes a guide bar arranged at the front and rear positions in the processing box, a connecting rod installed at the left end of the guide bar, a transmission mechanism connected to the connecting rod and installed inside the guide bar, and a contact assembly connected to the top of the transmission mechanism. A guide groove is opened at the left end of the guide bar, the transmission mechanism is connected to the inner side of the guide groove, and the connecting rod at the left end is connected to the output shaft of the drive motor.

[0015] Preferably, the transmission mechanism includes a main swing arm connected to the connecting rod, a first follower rod hinged to the left end of the main swing arm, a connecting rod hinged to the right end of the main swing arm, a linkage rod hinged to the other end of the connecting rod and the lower end of which is hinged to the first follower rod, a first support rod hinged to the middle of the first follower rod, a secondary swing arm fixed to the right side of the first support rod, a second support rod hinged to the right end of the first follower rod, a second follower rod hinged to the middle of the second support rod and the left end of which is hinged to the first support rod, a third support rod hinged to the right end of the second follower rod, and a third follower rod hinged to the middle of the third support rod and the left end of which is hinged to the second support rod.

[0016] Preferably, a set of auxiliary swing arms is fixed to the right side of the second support rod and the third support rod.

[0017] Preferably, the hinge positions of the connecting rod and the linkage rod protrude outside, the front end of each group of auxiliary swing arm hinge positions is protruding, the four groups of protruding positions are movably embedded in the guide groove, and four groups of contact components are provided, one group is connected to the top of the main swing arm, and the other three groups of contact components are each connected to a group of auxiliary swing arms.

[0018] Preferably, the contact assembly includes a fixed frame connecting the main swing arm and the auxiliary swing arm, a groove opened at the right end of the fixed frame, a rotating plate rotatably arranged inside the groove, a first scraper arranged at the right end of the rotating plate, a second scraper arranged at the left end of the rotating plate, a limit block installed at the right end of the fixed frame, an adjustment assembly arranged at the front and rear position of the left end of the rotating plate, and a support plate arranged on the inner side of the adjustment assembly, the inner opening of the first scraper is chamfered at both ends, and the inner opening of the second scraper is rounded.

[0019] Preferably, a ratchet is installed in the middle of the adjustment component, a rotating shaft is provided in the middle of the ratchet, the inner side of the rotating shaft is connected to the support plate, a clamp is hinged at the upper end of the adjustment component, a tension spring is installed at the hinge position between the clamp and the adjustment component, and the bottom of the clamp is against the outside of the ratchet.

[0020] Preferably, a magnetic sheet is installed in the middle of the limit block, and the right end of the limit block is connected to the fixed frame via a connecting shaft.

[0021] A non-woven fabric prepared by a method for preparing ultra-soft antibacterial non-woven fabric for sanitary napkins comprises an ultra-soft layer, an anti-stretching reinforcement layer is arranged at the bottom of the ultra-soft layer, the bottom of the anti-stretching reinforcement layer is connected to the antibacterial layer, and the anti-stretching reinforcement layer is formed by interlacing and compounding a first fiber web and a second fiber web.

[0022] Beneficial effects of the present invention:

[0023] The present invention combines the three advantages of ultra-softness, tensile strength and antibacterial properties through the coordinated design of multiple functional fibers: the ultra-fine denier polyester fiber significantly improves its softness and hygroscopicity after hydrophilization treatment, making the surface layer delicate and skin-friendly; the TPU nanofiber mesh and the cross-linked polyethylene microfiber mesh form a reinforcement layer, giving the non-woven fabric excellent tensile and tear resistance; the PLA antibacterial fiber integrates the dual antibacterial mechanisms of nano-silver and titanium dioxide to ensure long-lasting antibacterial safety, and is combined with silicone oil emulsion finishing to ensure that the overall material has the comprehensive properties of breathability, durability and hygiene while maintaining softness.

[0024] The present invention is achieved by adopting an auxiliary soft finishing device in the silicone oil emulsion finishing process. The auxiliary soft finishing device is equipped with a sweeping and lifting mechanism. Four groups of movable contact components are arranged inside the sweeping and lifting mechanism. The contact components can manually adjust the scraper position according to the thickness of the non-woven fabric, and the lifting angle can also be adjusted. In conjunction with the movement of the transmission mechanism, stable and uniform impregnation can be performed. The device can also be placed at the highest point to allow excess silicone oil to stand and drain. The overall impregnation effect is good, and the work efficiency is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the structure of the auxiliary soft finishing device of the present invention;

[0027] Figure 3 It is a structural schematic diagram of the sweeping and lifting mechanism of the present invention;

[0028] Figure 4 It is a schematic diagram of the transmission mechanism structure of the present invention;

[0029] Figure 5 It is a schematic diagram of the contact assembly structure of the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of the regulating component of the present invention;

[0031] Figure 7 It is a schematic diagram of the limit block structure of the present invention.

[0032] Among them: ultra-soft layer-a, anti-stretching reinforcement layer-b, antibacterial layer-c, first fiber web-b1, second fiber web-b2, auxiliary soft finishing device, processing box-1, guide roller group-2, drive motor-3, sweeping and lifting mechanism-4, guide strip-41, connecting rod-42, transmission mechanism-43, contact component-44, main swing arm-431, first follower rod-432, connecting rod-433, linkage rod-434, first support rod-435, auxiliary Swing arm 436, second support rod 437, second follower rod 438, third support rod 439, third follower rod 4310, fixed frame 441, groove 442, rotating plate 443, first scraper 444, second scraper 445, limit block 446, adjustment assembly 447, support plate 448, ratchet 4471, rotating shaft 4472, clamp 4473, magnetic sheet 4461, connecting shaft 4462. DETAILED DESCRIPTION

[0033] In order to further explain the technical solution of the present invention, it is described in detail below through specific embodiments.

[0034] See also Figure 1 The present invention provides a super-soft antibacterial non-woven fabric for sanitary napkins, comprising a super-soft layer a, the bottom of the super-soft layer a is connected to an anti-stretching reinforcement layer b by light pressure hot pressing, the bottom of the anti-stretching reinforcement layer b is connected to an antibacterial layer c by glue dispensing hot pressing, the super-soft layer a is made of super-fine denier polyester fiber and is hydrophilized, the antibacterial layer c is made of a mixture of polylactic acid fiber and nano-silver solution, and the surface is coated with a nano-titanium dioxide coating;

[0035] The tensile strength-resistant reinforcing layer b is made by interlacing and compounding a first fiber web b1 and a second fiber web b2. The first fiber web b1 and the second fiber web b2 are TPU nanofiber webs and cross-linked polyethylene microfiber webs.

[0036] The invention provides a method for preparing an ultra-soft antibacterial non-woven fabric for a sanitary napkin, comprising the following steps: S1: preparing ultra-soft layer a fibers: selecting 1.2 dtex ultra-fine denier polyester fibers to ensure that the fiber diameter is less than 10 μm, and using a polyethylene glycol (PEG) modifier after the fibers are subjected to hydrophilization treatment; S2: preparing a first fiber web b1 and a second fiber web b2: adopting an electrostatic spinning method to prepare a TPU nanofiber web with a fiber diameter of 300 nm, and adopting a melt-blowing method to prepare a cross-linked polyethylene microfiber web with a microfiber diameter of 2 μm; S3: preparing an antibacterial layer c fiber: mixing polylactic acid fibers with a nano-silver solution, and subjecting the mixture to a high-temperature curing treatment, and using a sol-gel method to prepare a nano-titanium dioxide coating, which is then coated on the surface of the polylactic acid fibers; S4: forming the non-woven fabric: preparing an ultra-soft layer a, and using a hot air web forming process to form a nano-titanium dioxide coating; The fiber presents a low-density fluffy structure by the process of S5, and the fiber is lightly sprayed to set the shape; the tensile strength reinforcement layer is prepared by compounding the TPU nanofiber mesh with the cross-linked polyethylene microfiber mesh to form a staggered reinforcement layer, the TPU fiber mesh is sprayed by electrospinning, the XLPE fiber mesh is deposited by melt-blowing, and the reinforcement layer is partially bonded to the ultra-soft layer by ultrasonic spot welding technology; the antibacterial layer is prepared by spraying glue to form the bottom structure of the antibacterial fiber; S5 composite process: the ultra-soft layer a and the tensile strength reinforcement layer b are hot-pressed with light pressure, and the bottom of the tensile strength reinforcement layer b and the antibacterial layer c are hot-pressed with glue spotting, followed by room temperature cooling and setting; S6 post-treatment process: the composite non-woven fabric is softened with silicone oil emulsion using an auxiliary softening finishing device, and the concentration of silicone oil emulsion is 1.8%.

[0037] See also Figure 2 The auxiliary softening finishing device includes a processing box 1 for loading silicone oil emulsion, a group of guide roller groups 2 are respectively arranged at the left and right positions of the upper end of the processing box 1, and an opening is opened on the side of the processing box 1 corresponding to the position of the guide roller group 2. A sweeping and lifting mechanism 4 is installed in the middle of the processing box 1, and a driving motor 3 for connecting the sweeping and lifting mechanism 4 is installed at the left end of the front end surface of the processing box 1. The processed non-woven fabric passes through the sweeping and lifting mechanism 4 through the left end guide roller group 2 and then passes out from the right end guide roller group 2.

[0038] See also Figure 3-Figure 7 The sweeping and lifting mechanism 4 includes a group of guide bars 41 fixedly arranged at the front and rear ends of the inner side of the processing box 1, a connecting rod 42 is installed at the left end of the guide bar 41, and the left end connecting rod 42 is connected to the output shaft of the driving motor 3. A transmission mechanism 43 is arranged at the lower end of the guide bar 41, and a guide groove is opened at the left end of the guide bar 41. The inner side of the guide groove is connected to the transmission mechanism 43, and the top of the transmission mechanism 43 is connected to the contact component 44, and the contact component 44 allows the non-woven fabric to pass through and can be moved and lifted;

[0039] The transmission mechanism 43 includes a main swing arm 431 connected to the connecting rod 42, a first follower rod 432 is hinged on the inner side of the main swing arm 431, a connecting rod 433 is hinged on the right end of the main swing arm 431, the other end of the connecting rod 433 is hinged to the linkage rod 434, the other end of the linkage rod 434 is hinged to the left end of the first follower rod 432, the middle part of the first follower rod 432 is hinged to the first support rod 435, a secondary swing arm 436 is fixed to the right side of the first support rod 435, the right side of the first follower rod 432 is hinged to the second support rod 437, the middle part of the second support rod 437 is hinged to the second follower rod 438, and the second A set of auxiliary swing arms 436 is also fixed on the right side of the support rod 437, a third support rod 439 is hinged on the right end of the second follower rod 438, a third follower rod 438 is hinged on the left end of the first support rod 435, a third follower rod 4310 is hinged on the middle of the third support rod 439, and a set of auxiliary swing arms 436 is also fixed on the right side of the third support rod 439, a third follower rod 4310 is hinged on the left end of the second support rod 437, the hinge positions of the connecting rod 433 and the linkage rod 434 are protruding outside, the front end of each set of auxiliary swing arms 436 hinge positions are all protruding, and the four sets of protruding positions are movably embedded in the guide groove;

[0040] The contact assembly 44 is provided with four groups, one group is connected to the top of the main swing arm 431, and the other three groups of contact assemblies 44 are each connected to a group of auxiliary swing arms 436. The contact assembly 44 includes a fixed frame 441 connected to the swing arm, a groove 442 is provided at the right end of the fixed frame 441, and the middle part of the groove 442 is rotatably connected to the rotating plate 443, and the second scraper 445 and the first scraper 444 are respectively installed at the left and right ends of the rotating plate 443. The middle parts of the two groups of scrapers are provided with openings, but the two ends of the inner opening of the first scraper 444 are chamfered, and the inner opening of the second scraper 445 is rounded, and a group of limit blocks 446 are respectively installed at the front and rear positions of the right end of the top of the fixed frame 441, and an adjustment assembly 447 is fixed at the front and rear positions of the left end of the fixed frame 441, and the inner side of the adjustment assembly 447 is connected to the support plate 448;

[0041] A ratchet 4471 is installed in the middle of the adjustment component 447, a rotating shaft 4472 is arranged in the middle of the ratchet 4471, the inner side of the rotating shaft 4472 is connected to the support plate 448, a clamp 4473 is hinged at the upper end of the adjustment component 447, a tension spring is installed at the hinge position of the clamp 4473 and the adjustment component 447 for easy reset, and the bottom of the clamp 4473 is against the outer side of the ratchet 4471;

[0042] A magnetic sheet 4461 is installed in the middle of the limit block 446 . The magnetic sheet 4461 provides magnetic force to facilitate the adsorption of the rotating plate 443 . The right end of the limit block 446 is connected to the fixed frame 441 via a connecting shaft 4462 .

[0043] The specific implementation process is as follows:

[0044] When the auxiliary soft finishing device needs to be used, the non-woven fabric is first installed and passed through the processing box and the sweeping and lifting mechanism 4, and then the silicone oil emulsion is poured into the processing box 1. If it is necessary to impregnate non-woven fabrics of different thicknesses, the scraper can be selected according to the adjustment of the rotating plate 443. The user applies force to move the limit block 446 to release the limit on the rotating plate 443, and then the rotating plate 443 can be rotated to adjust the scraper to be selected to the right end, and then limit it again, and then the non-woven fabric is passed through the middle opening of the scraper at the right end, and then through the other three groups in turn, and then force is applied to the support plate 448 to adjust the angle. The support plate 448 rotates with the rotating shaft 4472, and the ratchet 4471 rotates with it, and is limited by the clamp 4473;

[0045] Then, the stirring work can be started in the emulsion in the processing box 1 to improve the uniform impregnation effect, and the driving motor 3 is started to work. The driving motor 3 rotates with the connecting rod 42, and the connecting rod 42 can act on the main swing arm 431, and the main swing arm 431 can act on the first follower rod 432. The first follower rod 432 pulls the second support rod 437, and the second support rod 437 pulls the third support rod 439 through the second follower rod 438, and cooperates with the displacement of the protruding position in the guide groove to realize the swing of the main swing arm 431 and the auxiliary swing arm 436. During the swinging process, the contact component 44 connected at the top follows the movement, and then the driving motor 3 needs to perform forward and reverse movements to achieve stable swinging and stir the movement. After the impregnation is completed, the swing arm can be swung to the highest position to facilitate the falling of excess emulsion in the non-woven fabric.

[0046] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for preparing an ultra-soft antibacterial non-woven fabric for sanitary napkins, characterized in that: The specific steps are as follows: Preparation of S1 ultra-soft layer fiber: 1.0~1.5dtex ultra-fine polyester fiber is selected to ensure that the fiber diameter is less than 10μm, and the fiber is hydrophilized using polyethylene glycol PEG modifier; S2 Preparation of the first fiber web and the second fiber web: The TPU nanofiber web is prepared by electrospinning, and the fiber diameter is 200-500 nm. The cross-linked polyethylene microfiber web is prepared by melt-blowing, and the microfiber diameter is 1-3 μm. S3 antibacterial layer fiber preparation: polylactic acid fiber is mixed with nano silver solution and subjected to high temperature curing treatment, and a nano titanium dioxide coating is prepared by a sol-gel method and coated on the surface of the polylactic acid fiber; S4 non-woven fabric forming: preparation of the ultra-soft layer, using hot air web forming process to make the fiber present a low-density fluffy structure, and slightly spraying the fiber to set the shape; preparation of the tensile reinforcement layer, compounding the TPU nanofiber mesh with the cross-linked polyethylene microfiber mesh to form a staggered reinforcement layer, spraying the TPU fiber mesh by electrospinning, and depositing the XLPE fiber mesh by melt-blowing. The ultrasonic spot welding technology is used to partially bond the reinforcement layer and the ultra-soft layer; preparation of the antibacterial layer, and the antibacterial fiber is formed into the bottom structure by the spray bonding method; S5 composite process: the ultra-soft layer and the anti-stretching reinforcement layer are hot-pressed with light pressure, and the bottom of the anti-stretching reinforcement layer and the antibacterial layer are hot-pressed with glue, followed by cooling at room temperature to set the shape; S6 post-treatment process: Use auxiliary softening finishing device to soften the composite non-woven fabric with silicone oil emulsion, and the concentration of silicone oil emulsion is 1.5%~2.5%; The auxiliary soft finishing device comprises a processing box, a guide roller group arranged at both ends of the processing box for guiding the non-woven fabric, a driving motor arranged at the front end of the processing box, and a sweeping and lifting mechanism installed in the processing box and connected to the output shaft of the driving motor at the left end, wherein the sweeping and lifting mechanism is used to move and lift the non-woven fabric; The sweeping and lifting mechanism includes a guide bar arranged at the front and rear positions in the processing box, a connecting rod installed at the left end of the guide bar, a transmission mechanism connected to the connecting rod and installed inside the guide bar, and a contact component connected to the top of the transmission mechanism. A guide groove is opened at the left end of the guide bar, the inner side of the guide groove is connected to the transmission mechanism, and the left end connecting rod is connected to the output shaft of the drive motor.

2. The method for preparing a super soft antibacterial nonwoven fabric for sanitary napkin according to claim 1, characterized in that: The transmission mechanism includes a main swing arm connected to the connecting rod, a first follower rod hinged to the left end of the main swing arm, a connecting rod hinged to the right end of the main swing arm, a linkage rod hinged to the other end of the connecting rod and hinged to the first follower rod at the lower end, a first support rod hinged to the middle of the first follower rod, a secondary swing arm fixed to the right side of the first support rod, a second support rod hinged to the right end of the first follower rod, a second follower rod hinged to the middle of the second support rod and hinged to the first support rod at the left end, a third support rod hinged to the right end of the second follower rod, and a third follower rod hinged to the middle of the third support rod and hinged to the second support rod at the left end.

3. The method for preparing a super soft antibacterial nonwoven fabric for sanitary napkin according to claim 2, characterized in that: A set of auxiliary swing arms are fixed on the right sides of the second support rod and the third support rod.

4. The method for preparing a super soft antibacterial nonwoven fabric for sanitary napkin according to claim 3, characterized in that: The hinge positions of the connecting rod and the linkage rod protrude on the outside, and the front end of each set of auxiliary swing arm hinge positions is protruding. The four sets of protruding positions are movably embedded in the guide groove. There are four sets of contact components, one set is connected to the top of the main swing arm, and the other three sets of contact components are each connected to a set of auxiliary swing arms.

5. The method for preparing a super soft antibacterial nonwoven fabric for sanitary napkin according to claim 4, characterized in that: The contact assembly includes a fixed frame connecting the main swing arm and the auxiliary swing arm, a groove opened at the right end of the fixed frame, a rotating plate rotatably arranged inside the groove, a first scraper arranged at the right end of the rotating plate, a second scraper arranged at the left end of the rotating plate, a limit block installed at the right end of the fixed frame, an adjustment assembly arranged at the front and rear positions of the left end of the rotating plate, and a support plate arranged on the inner side of the adjustment assembly, wherein the inner opening of the first scraper is chamfered at both ends, and the inner opening of the second scraper is rounded.

6. The method for preparing the ultra-soft antibacterial non-woven fabric for sanitary napkin according to claim 5, characterized in that: A ratchet is installed in the middle of the adjustment component, a rotating shaft is set in the middle of the ratchet, the inner side of the rotating shaft is connected to the support plate, a clamp is hinged at the upper end of the adjustment component, a tension spring is installed at the hinge position between the clamp and the adjustment component, and the bottom of the clamp is against the outer side of the ratchet.

7. The method for preparing the ultra-soft antibacterial non-woven fabric for sanitary napkin according to claim 5, characterized in that: A magnetic sheet is installed in the middle of the limit block, and the right end of the limit block is connected to the fixed frame through a connecting shaft.

8. A super soft antibacterial non-woven fabric for sanitary napkins, the non-woven fabric being prepared by the method for preparing a super soft antibacterial non-woven fabric for sanitary napkins as claimed in claim 1, characterized in that: It comprises an ultra-soft layer, an anti-stretching reinforcement layer is arranged at the bottom of the ultra-soft layer, the bottom of the anti-stretching reinforcement layer is connected to the antibacterial layer, and the anti-stretching reinforcement layer is formed by interlacing and compounding a first fiber mesh and a second fiber mesh.

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