Spunlace non-woven fabric and manufacturing method thereof

Abstract

The invention provides a spunlace non-woven fabric and a manufacturing method thereof, and relates to the technical field of non-woven fabrics, the spunlace non-woven fabric comprises an upper layer fiber net, a lower layer fiber net and microcapsule particles; the plurality of microcapsule particles are arranged between the upper-layer fiber net and the lower-layer fiber net; the upper-layer fiber net and the lower-layer fiber net are reinforced into a whole through spunlace; the microcapsule particles comprise shells, the shells can be broken when subjected to friction shearing force, and functional substances are arranged in the shells. When the spunlace non-woven fabric is subjected to friction force such as rubbing or shearing, the microcapsule particles are extruded and broken along the shearing direction, so that functional substances in the microcapsule particles are released; the microcapsule particles form a protected interlayer between the upper-layer fiber net and the lower-layer fiber net, so that the microcapsule particles can be prevented from falling off or being broken due to slight pressure or daily carrying, and the validity period and the reliability of the spunlace non-woven fabric are improved. And the spunlace non-woven fabric cannot be obviously hardened or the use comfort cannot be influenced due to the addition of the microcapsule particles.

Description

Technical Field

[0001] The present invention relates to the technical field of nonwoven fabrics, and in particular to a spunlace nonwoven fabric and a manufacturing method thereof. Background Art

[0002] Spunlace non-woven fabric is a non-woven fabric in which fibers are entangled with each other into a web through high-pressure water flow. It does not require the use of adhesives to give the non-woven fabric higher strength and softness. It is widely used in medical dressings, cleaning wipes and personal care products.

[0003] Introducing microcapsule particles into non-woven fabrics can give them special functions. In the prior art, microcapsule particles are usually coated or bonded to the surface of non-woven fabrics.

[0004] However, microcapsule particles attached to the surface of non-woven fabrics are easily squeezed or ruptured prematurely due to environmental changes during storage or transportation. In addition, during the production process of spunlace non-woven fabrics, high-pressure water flow may directly break through the microcapsule particles, making it difficult to integrate the microcapsule particles into the spunlace non-woven fabrics. In addition, the adhesive will also reduce the softness and breathability of the non-woven fabrics. Summary of the Invention

[0005] The purpose of the present invention is to provide a spunlace non-woven fabric to solve the technical problems in the prior art that microcapsule particles adhere to the surface of the non-woven fabric, are easily squeezed or prematurely broken by environmental changes during storage or transportation, are difficult to integrate into the spunlace non-woven fabric, and the adhesive also reduces the softness and breathability of the non-woven fabric.

[0006] The spunlace nonwoven fabric provided by the present invention comprises an upper fiber web, a lower fiber web and microcapsule particles; The plurality of microcapsule particles are arranged between the upper fiber web and the lower fiber web; the upper fiber web and the lower fiber web are reinforced into one by hydroentanglement; The microcapsule particles include an outer shell, which can be broken when subjected to friction shear force, and the inner portion of the outer shell is used to arrange functional substances.

[0007] Furthermore, the particle size of the shell is 50 microns to 100 microns.

[0008] Furthermore, the shell is made of polymer material.

[0009] Furthermore, the fibers of the upper fiber web are fine denier fibers, and the fibers of the lower fiber web are high-strength fibers.

[0010] Furthermore, the added amount of the microcapsule particles is 5%-30% of the total weight of the spunlace non-woven fabric.

[0011] The present invention also aims to provide a method for manufacturing a spunlace nonwoven fabric, which is used to manufacture the spunlace nonwoven fabric provided by the present invention, comprising the following steps: Spreading a plurality of microcapsule particles on the lower fiber web; Covering the upper fiber web on the plurality of microcapsule particles and the lower fiber web to form a stacked structure; The laminated structure is subjected to hydroentanglement reinforcement to entangle the fibers of the upper fiber web and the fibers of the lower fiber web, and to fix the microcapsule particles between the upper fiber web and the lower fiber web.

[0012] Furthermore, a spreader or an electrostatic spraying device is used to spread a plurality of the microcapsule particles on the lower fiber web.

[0013] Furthermore, the method further comprises the following steps: before the stacked structure is subjected to hydroentanglement reinforcement, the lower fiber web on which the plurality of microcapsule particles are spread is subjected to a wetting treatment or a compacting treatment.

[0014] Furthermore, the hydroentanglement reinforcement adopts a multi-stage hydroentanglement process, and the hydroentanglement pressure of the multi-stage hydroentanglement process gradually increases.

[0015] Furthermore, the method further comprises the following steps: dehydrating and drying the spunlace reinforced spunlace nonwoven fabric.

[0016] The spunlace nonwoven fabric provided by the present invention includes an upper fiber web, a lower fiber web, and microcapsule particles; a plurality of the microcapsule particles are disposed between the upper fiber web and the lower fiber web; the upper fiber web and the lower fiber web are integrally reinforced by hydroentanglement; the microcapsule particles include an outer shell that can rupture when subjected to frictional shear forces, and the inner shell is used to contain a functional substance. When the spunlace nonwoven fabric is used, when the spunlace nonwoven fabric is subjected to frictional forces such as rubbing or shearing, the microcapsule particles are squeezed and ruptured along the shear direction, thereby releasing the functional substances in the microcapsule particles; the microcapsule particles form a protected interlayer between the upper fiber web and the lower fiber web, which can prevent the microcapsule particles from falling off or rupturing due to slight pressure or daily handling, thereby achieving on-demand release of the functional ingredients and improving the shelf life and reliability of the spunlace nonwoven fabric. Since the spunlace process is used to fully entangle and fix the microcapsule particles in the fiber mesh layer, no large amount of adhesive is required. The spunlace non-woven fabric provided by the present invention still maintains its original softness, breathability and good moisture absorption properties, feels comfortable, and will not become significantly hardened or affect the comfort of use due to the addition of microcapsule particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 1 is an exploded view of the spunlace nonwoven fabric provided in an embodiment of the present invention.

[0019] Icon: 1-upper fiber mesh; 2-lower fiber mesh; 3-microcapsule particles. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] The present invention provides a spunlace nonwoven fabric and a method for manufacturing the same. The spunlace nonwoven fabric and the method for manufacturing the same provided by the present invention are described in detail below with reference to several embodiments.

[0022] The spunlace nonwoven fabric provided in this embodiment is as follows Figure 1 As shown, it includes an upper fiber web 1, a lower fiber web 2 and microcapsule particles 3; a plurality of microcapsule particles 3 are arranged between the upper fiber web 1 and the lower fiber web 2; the upper fiber web 1 and the lower fiber web 2 are reinforced into one by water entanglement; the microcapsule particles 3 include an outer shell, which can be broken when subjected to friction shear force, and the outer shell is used to set functional substances.

[0023] The plurality of microcapsules may be evenly spaced between the upper fiber web 1 and the lower fiber web 2 .

[0024] The microcapsule particles 3 include an outer shell, wherein the functional liquid or solid component is enclosed inside the outer shell, and the microcapsule particles 3 have the characteristic of being broken when subjected to friction shear stress by external force.

[0025] The upper fiber web 1 and the lower fiber web 2 are reinforced into one by hydroentanglement, so that the fibers of the upper fiber web 1 and the fibers of the lower fiber web 2 are interwoven and entangled, and the microcapsule particles 3 are firmly fixed between the upper fiber web 1 and the lower fiber web 2.

[0026] The spunlace nonwoven fabric provided in this embodiment, when the spunlace nonwoven fabric is used, when the spunlace nonwoven fabric is subjected to friction such as rubbing or shearing, the microcapsule particles 3 are squeezed and ruptured along the shear direction, thereby releasing the functional substances in the microcapsule particles 3; the microcapsule particles 3 form a protected interlayer between the upper fiber web 1 and the lower fiber web 2, which can prevent the microcapsule particles 3 from falling off or rupturing due to slight pressure or daily handling, thereby realizing the on-demand release of functional ingredients and improving the shelf life and reliability of the spunlace nonwoven fabric.

[0027] Since the spunlace process is used to fully entangle and fix the microcapsule particles 3 in the fiber web layer, no large amount of adhesive is required. The spunlace non-woven fabric provided in this embodiment still maintains its original softness, breathability and good moisture absorption properties, feels comfortable, and will not become significantly hardened or affect the comfort of use due to the addition of microcapsule particles 3.

[0028] The shells of the microcapsules 3 can encapsulate fragrances to make the spunlace nonwoven fabric into scented wipes, disinfectants to make medical sterilization compresses, and skincare essences to make it into a base material for beauty masks. By adjusting the functional ingredients and dosage within the microcapsules 3, the spunlace nonwoven fabric can be flexibly endowed with multiple functions, achieving the goal of a single fabric with multiple effects.

[0029] Furthermore, the particle size of the shell is 50 microns to 100 microns.

[0030] The particle size of the shell can be any suitable value such as 50 microns, 60 microns, 70 microns, 80 microns, 90 microns or 100 microns.

[0031] The particle size of the shell is 50 microns to 100 microns, so that the spunlace nonwoven fabric can accommodate the microcapsule particles 3 without affecting the feel and smoothness of the spunlace nonwoven fabric due to the excessive size of the microcapsule particles 3.

[0032] Furthermore, the shell is made of polymer material.

[0033] The shell material of the microcapsule particles 3 can be made of natural or synthetic polymers, such as gelatin-gum arabic composites, urea-formaldehyde resins, alginate gels, chitin, polyvinyl alcohol, polyurethane, or polyacrylates. This ensures that the shell possesses sufficient strength in the dry state to resist cracking during hydroentanglement and subsequent processing, while remaining brittle when subjected to frictional shear forces. The functional substances encapsulated within the microcapsule particles 3 can be selected based on application requirements, such as essential oils, fungicides, moisturizing essences, cooling agents, or herbal extracts, to impart aromatic deodorizing, antibacterial and anti-inflammatory, moisturizing, skin-care, or cooling therapeutic properties to the spunlace nonwoven fabric.

[0034] The fibers of the upper fiber web 1 and the lower fiber web 2 can be polyester fibers, viscose fibers, cotton fibers or a mixture thereof, so as to take both strength and liquid absorption performance into consideration.

[0035] Preferably, the fibers of the upper fiber web 1 are fine denier fibers, and the fibers of the lower fiber web 2 are high-strength fibers.

[0036] The fibers of the upper fiber web 1 are made of fine-denier fiber materials with a soft touch (such as 1.0-1.7 denier synthetic fibers or combed cotton fibers) to improve the touch, and the fibers of the lower fiber web 2 are made of high-strength fiber materials (such as polyester fibers) to improve the overall mechanical properties and strength of the spunlace non-woven fabric.

[0037] Furthermore, the added amount of the microcapsule particles 3 is 5%-30% of the total weight of the spunlace nonwoven fabric.

[0038] The weight of the plurality of microcapsule particles 3 in the spunlace nonwoven fabric is b, the total weight of the spunlace nonwoven fabric is G, and b is 5%G-30%G.

[0039] The added amount of the microcapsule particles 3 is any suitable value such as 5%, 10%, 15%, 20%, 25% or 30% of the total weight of the spunlace non-woven fabric.

[0040] Preferably, the amount of microcapsule particles 3 added can ensure that the spunlace nonwoven fabric contains several microcapsule particles 3 per square centimeter, so as to provide sufficient functional substances during use.

[0041] The spunlace nonwoven fabric provided in this embodiment effectively embeds microcapsule particles 3 within the fabric and reliably triggers the release of their functional substances through gentle frictional shearing. This spunlace nonwoven fabric securely binds the microcapsule particles 3 within the fabric, preventing premature rupture during storage and normal handling. Furthermore, during use, frictional shearing forces applied by the user (e.g., rubbing or wiping) smoothly trigger the rupture of the microcapsule particles 3, thereby releasing the functional substances contained therein. This enables the on-demand release of specific functional substances without compromising the fabric's inherent properties, such as softness, breathability, and liquid absorption, meeting the demand for functional nonwoven materials in medical care, sanitary cleaning, and personal care applications.

[0042] The method for manufacturing the spunlace nonwoven fabric provided in this embodiment is used to manufacture the spunlace nonwoven fabric provided in this embodiment, comprising the following steps: Spreading a plurality of microcapsule particles 3 on the lower fiber web 2; The upper fiber web 1 is covered on the plurality of microcapsule particles 3 and the lower fiber web 2 to form a stacked structure; The laminated structure is hydroentangled to entangle the fibers of the upper fiber web 1 and the fibers of the lower fiber web 2 with each other, and the microcapsule particles 3 are fixed between the upper fiber web 1 and the lower fiber web 2.

[0043] In this embodiment, a plurality of microcapsule particles 3 are spread on a lower fiber web 2. An upper fiber web 1 is then placed over the lower fiber web 2 with the microcapsule particles 3 arranged thereon, forming a laminated structure. The laminated structure is then fed into a hydroentanglement machine for reinforcement. The hydroentanglement consolidates the upper and lower fiber webs 1 and 2 into one, intertwining and entangled the fibers of the upper and lower fiber webs 1 and 2, and firmly anchoring the microcapsule particles 3 between the upper and lower fiber webs 1 and 2.

[0044] When the spunlace nonwoven fabric is in use, when the spunlace nonwoven fabric is subjected to friction such as rubbing or shearing, the microcapsule particles 3 are squeezed and ruptured along the shear direction, thereby releasing the functional substances in the microcapsule particles 3; the microcapsule particles 3 form a protected interlayer between the upper fiber web 1 and the lower fiber web 2, which can prevent the microcapsule particles 3 from falling off or rupturing due to slight pressure or daily handling, thereby realizing the on-demand release of functional ingredients and improving the shelf life and reliability of the spunlace nonwoven fabric.

[0045] Since the spunlace process is used to fully entangle and fix the microcapsule particles 3 in the fiber web layer, no large amount of adhesive is required. The non-woven fabric of the present invention still maintains its original softness, breathability and good moisture absorption properties, feels comfortable, and will not become significantly hardened or affect the comfort of use due to the addition of microcapsule particles 3.

[0046] Before spreading a plurality of microcapsule particles 3 on the lower fiber web 2, it is necessary to prepare the upper fiber web 1 and the lower fiber web 2.

[0047] Preferably, a dry-laid web (e.g., carded web) or wet-laid web process is used to form a uniform fiber layer. The basis weight (weight per unit area) of the upper fiber web 1 and the lower fiber web 2 can be determined based on the end use, for example, 20 g / m2 to 80 g / m2 per layer of the upper fiber web 1 or lower fiber web 2.

[0048] Furthermore, a plurality of microcapsule particles 3 are spread on the lower fiber web 2 using a spreader or an electrostatic spraying device.

[0049] When spreading a plurality of microcapsule particles 3 on the lower fiber web 2, a spreader or an electrostatic spraying device is used to spread the plurality of microcapsule particles 3 so that the uniformity of distribution and the amount of the microcapsule particles 3 can be precisely controlled.

[0050] Furthermore, the method further includes the following steps: before the stacked structure is subjected to hydroentanglement reinforcement, the lower fiber web 2 on which the plurality of microcapsule particles 3 are spread is subjected to a wetting treatment or a compacting treatment.

[0051] Before the stacked structure is hydroentangled, the lower fiber web 2 on which multiple microcapsule particles 3 are spread is slightly pre-compacted or moistened by spraying a small amount of water, so that the microcapsule particles 3 are initially embedded in the surface layer of the lower fiber web 2 to prevent the microcapsule particles 3 from moving during the hydroentanglement process.

[0052] Furthermore, the hydroentanglement reinforcement adopts a multi-stage hydroentanglement process, and the hydroentanglement pressure of the multi-stage hydroentanglement process gradually increases.

[0053] The hydroentanglement process uses a continuous hydroentanglement process, with the hydroentanglement pressure of the next hydroentanglement process being greater than that of the previous hydroentanglement process. A lower hydroentanglement pressure is first used to pre-entangle the upper fiber web 1 and the lower fiber web 2, causing the fibers of the upper fiber web 1 and the lower fiber web 2 to begin to entangle, and the microcapsule particles 3 are fixed between the entangled fibers of the upper fiber web 1 and the lower fiber web 2. The hydroentanglement pressure is then gradually increased to fully reinforce the fibers of the upper fiber web 1 and the lower fiber web 2.

[0054] For example, the laminated structure can be hydroentangled multiple times using a sequence of low to high hydroentanglement pressures (e.g., increasing the hydroentanglement pressure gradually from 5 MPa to 15 MPa). During this process, the energy density and angle of the hydroentanglement should be controlled to ensure that the majority of the microcapsule particles 3 remain intact. Through entanglement with the surrounding fibers, the microcapsule particles 3 are stably bound between the fibers of the upper fiber web 1 and the lower fiber web 2. With appropriate process parameters, the hydroentangled nonwoven fabric should have densely interwoven fibers, with the microcapsule particles 3 positioned and largely intact.

[0055] Furthermore, the method further comprises the following steps: dehydrating and drying the spunlace reinforced spunlace nonwoven fabric.

[0056] The resulting hydroentangled nonwoven fabric is then passed through a vacuum suction device and squeezed to remove excess water. The fabric is then dried and shaped in a dryer. The drying temperature and time should be appropriately selected to thoroughly dry and shape the fabric without damaging the microcapsule particles (for example, a mild drying temperature of no more than 60°C should be used to protect heat-sensitive functional ingredients). After drying, the fabric can be wound into rolls or cut into sheets of specified size as needed.

[0057] Depending on the end use, spunlace nonwovens can undergo appropriate post-processing after drying. For example, embossing the surface to create a raised pattern increases friction during use, enhancing the activation of microcapsules. 3 Or applying a breathable protective film to the surface of the spunlace nonwoven to slow the volatilization of functional ingredients. These post-processing methods do not alter the basic structure of the spunlace nonwoven, but can impart additional properties.

[0058] The above-described spunlace nonwoven fabric manufacturing method can produce a spunlace nonwoven fabric with friction-shear-triggered microcapsule particles 3. The spunlace nonwoven fabric manufacturing method provided in this embodiment fully considers the protection of the microcapsule particles 3 during the manufacturing process. While achieving sufficient fiber web formation and reinforcement, it minimizes direct impact and shear on the microcapsule particles 3 to maintain the integrity of the microcapsule particles 3 in the finished product. The resulting spunlace nonwoven fabric product features uniformly and securely held microcapsule particles 3, similar in appearance to conventional nonwoven fabrics, yet reliably releases the functional substances contained in the microcapsule particles 3 when subjected to friction and rubbing.

[0059] The spunlace nonwoven fabric manufacturing method provided in this embodiment is based on established spunlace nonwoven fabric production processes. It only adds the placement of microcapsule particles 3 and process parameter adjustments during the web-forming and spunlace processes. Therefore, it can be easily adopted by existing production lines and has promising prospects for industrial application. Furthermore, due to the high utilization efficiency of the microcapsule particles 3 and the elimination of excessive waste, the cost increase is minimal, while significantly increasing the added value of the product.

[0060] Example 1: This example manufactures a spunlace nonwoven fabric containing microcapsule particles 3 of aromatic essential oil (a wiping fabric containing microcapsule particles 3 of aromatic essential oil), which has the dual functions of cleansing the skin and releasing aromatherapy. First, polyester and viscose fibers were mixed in a 50:50 weight ratio and carded to form an upper fiber web 1 and a lower fiber web 2, each with a basis weight of 30 g / m². The fibers used were 40 mm long and 1.5 denier. Next, microcapsule particles 3 containing lavender essential oil (approximately 100 microns in diameter, with a shell made of a gelatin and gum arabic composite) were used as a functional additive. A vibrating spreader was used to evenly distribute the microcapsule particles 3 onto the surface of the lower fiber web 2, at an amount of approximately 10% of the total weight of the spunlace nonwoven fabric. Subsequently, the upper fiber web 1 was carefully laid over the lower fiber web 2, coated with microcapsule particles 3, to form a layered structure, which was then fed into a spunlace machine. The hydroentanglement process utilizes a multi-stage hydroentanglement pressure process. Initially, a pre-entanglement pressure of 5 MPa is applied to entangle the fibers of the upper and lower fiber webs 1 and 2, securing the microcapsule particles 3. The pressure is then gradually increased to 12 MPa for the final entanglement. This process is repeated several times until the fiber webs are fully formed and consolidated. After hydroentanglement, the resulting spunlace nonwoven fabric is vacuum-dehydrated and then dried in a 50°C forced-air dryer to a moisture content of less than 5%. The dried spunlace nonwoven fabric exhibits evenly distributed microscopic bumps (caused by the slightly raised microcapsule particles 3 embedded within the fabric), but the overall surface remains soft and smooth. Finally, the roll is cut into finished wipes of the desired size.

[0061] The finished wiping cloth has no obvious fragrance leakage when not in use, indicating that the microcapsule particles 3 remain intact. When in use, gently rub the wiping cloth with your fingers several times, and you can smell the lavender fragrance gradually emanating. This is because the microcapsule particles 3 break under friction and release the essential oil. When wiping and cleaning the skin with this wiping cloth, you can feel the softness of the fabric without irritation, while leaving a pleasant fragrance on the skin. Under normal wiping force, more than about 80% of the microcapsule particles 3 are triggered to break, and the friction shear trigger mechanism designed in this embodiment is effective. After being stored for one month, the product was taken out and used again, and it still released fragrance normally, indicating that the encapsulation of the microcapsule particles 3 remained stable and had good storage performance.

[0062] Example 2 This example manufactures a spunlace nonwoven dressing (medical dressing containing antibacterial microcapsule particles 3) with antimicrobial properties for the disinfection and care of minor abrasions. The spunlace nonwoven fabric is a blend of cotton and polyester fibers. The upper fiber web 1 is composed of 100% absorbent cotton fibers (basis weight 25 g / m²), while the lower fiber web 2 is a blend of 70% polyester and 30% viscose (basis weight 25 g / m²). Both fibers are 30 mm long. The microcapsule particles 3 are encapsulated in a 0.5% chlorhexidine aqueous solution, with the remainder being a hydrogel carrier. The average diameter of the microcapsule particles 3 is approximately 100 microns, and the outer shell is formed from a cross-linked alginate gel, making it brittle when exposed to shear forces. Following a method similar to Example 1, the microcapsule particles 3 are evenly spread onto the lower fiber web 2 (approximately 20% added to increase the biocide content). After covering the upper fiber web 1, the particles are then subjected to graded hydroentanglement (initial hydroentanglement pressure is 4 MPa, subsequently increased to 10 MPa). After dehydration and drying, a soft white spunlace non-woven dressing substrate is obtained, which contains a large number of tiny antibacterial microcapsule particles 3 that are difficult to identify with the naked eye.

[0063] The dressing is covered on the surface of a simulated wound and gently pressed and rubbed. The fibers are soft and fit the skin without irritation, and a slight smell of disinfectant can be smelled. At this time, the friction between the dressing and the skin causes the internal microcapsule particles 3 to rupture and release the chlorhexidine solution, and the antibacterial component can quickly act on the wound area. Under normal application and gentle rubbing several times, about 75% of the microcapsule particles 3 in the dressing are activated and ruptured. The released chlorhexidine can be evenly diffused to the surface of the dressing and reach an effective bactericidal concentration. Compared with traditional pre-drug-soaked dressings, the antibacterial microcapsule particle medical dressing provided in this embodiment is kept dry before use, the active ingredient is stable and non-volatile, and the drug is released only when used, thereby significantly improving the timeliness of the bactericidal effect and the shelf life of the material.

[0064] The above examples fully demonstrate the technical effect of the present application in achieving the release of functional substances triggered by frictional shear force. Those skilled in the art will appreciate that various equivalent modifications and substitutions can be made without departing from the principles of the present application, such as selecting different functional substances or adjusting the number of nonwoven fabric layers and materials. These modifications should be considered within the scope of protection of the present application.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A spunlace nonwoven fabric, characterized in that: It includes an upper fiber web, a lower fiber web and microcapsule particles; The plurality of microcapsule particles are arranged between the upper fiber web and the lower fiber web; the upper fiber web and the lower fiber web are reinforced into one by hydroentanglement; The microcapsule particles include an outer shell, which can be broken when subjected to friction shear force, and the inner portion of the outer shell is used to arrange functional substances.

2. The spunlace nonwoven fabric according to claim 1, characterized in that: The particle size of the shell is 50 microns to 100 microns.

3. The spunlace nonwoven fabric according to claim 1, characterized in that: The shell is made of polymer material.

4. The spunlace nonwoven fabric according to claim 1, characterized in that: The fibers of the upper fiber web are fine-denier fibers, and the fibers of the lower fiber web are high-strength fibers.

5. The spunlace nonwoven fabric according to claim 1, characterized in that: The added amount of the microcapsule particles is 5%-30% of the total weight of the spunlace non-woven fabric.

6. A method for producing a spunlace nonwoven fabric, characterized in that: The method for producing the spunlace nonwoven fabric according to any one of claims 1 to 5 comprises the following steps: Spreading a plurality of microcapsule particles on the lower fiber web; Covering the upper fiber web on the plurality of microcapsule particles and the lower fiber web to form a stacked structure; The laminated structure is subjected to hydroentanglement reinforcement to entangle the fibers of the upper fiber web and the fibers of the lower fiber web, and to fix the microcapsule particles between the upper fiber web and the lower fiber web.

7. The method for producing a spunlace nonwoven fabric according to claim 6, wherein: A plurality of the microcapsule particles are spread on the lower fiber web using a spreader or an electrostatic spraying device.

8. The method for producing spunlace nonwoven fabric according to claim 6, wherein: The following steps are also included: Before the stacked structure is subjected to hydroentanglement reinforcement, the lower fiber web on which the plurality of microcapsule particles are spread is subjected to a wetting treatment or a compacting treatment.

9. The method for producing spunlace nonwoven fabric according to claim 6, wherein: The hydroentanglement reinforcement adopts a multi-stage hydroentanglement process, and the hydroentanglement pressure of the multi-stage hydroentanglement process gradually increases.

10. The method for producing spunlace nonwoven fabric according to claim 6, wherein: The following steps are also included: The spunlace reinforced spunlace nonwoven fabric is subjected to a dehydration and drying process.

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