Fiber and preparation method thereof, yarn and fabric

The fiber structure is formed by spinning the sponge fiber nylon masterbatch, porous nylon masterbatch, moissanite nylon masterbatch and nylon masterbatch, which solves the problem of sweating and breathability in summer, and improves the cool breathability performance and improves the user's wear comfort.

CN120250180APending Publication Date: 2025-07-04BIYUE (BEIJING) TECH CO LTD
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Patent Information

Application Number
CN202510520480.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2025-07-04

AI Technical Summary

Technical Problem

Existing intimate clothing materials are prone to sweating and not breathable in summer, which affects the user's wear comfort.

Method used

The sponge fiber nylon masterbatch, porous nylon masterbatch, moissanite nylon masterbatch and nylon masterbatch are fused and spinned to form a fiber structure. The alkaline salt-like reaction substances are crystallized and dissolved or ablated to form a concave and convex structure, increasing the moisture absorption and breathability of the fabric.

Benefits of technology

Without changing the structure, the moisture absorption and breathability of the fabric is improved, the sultry feeling is reduced, and the body feels cool when wearing it is not changed.

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Abstract

The invention provides a fiber and a preparation method thereof, a yarn and a fabric. The fiber is of a fiber structure formed by fusing and spinning sponge fiber chinlon master batch, porous chinlon master batch, moissanite chinlon master batch and chinlon master batch. Wherein the sponge fiber chinlon master batch contains calcium carbonate; the moissanite chinlon master batch contains silicon carbide; the porous fiber master batch contains alkaline salt reaction substance crystals; wherein the fiber has a concave-convex structure formed by crystallization dissolution or ablation of an alkaline salt reaction substance. The fiber structure formed by fusing and spinning the master batch has good moisture absorption and air permeability, the comfort of the microenvironment on the surface of the close-fitting skin of a user is maintained, and the material with cool feeling and air permeability is provided, so that the moisture absorption and air permeability of the fabric are improved under the condition that the tissue structure is not changed; the stuffiness feeling felt by a user when the user wears underwear is reduced, and meanwhile in hot summer, a cool and refreshing wearing body feeling is brought to the user.
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Description

Technical Field

[0001] This application relates to the field of textile technology, and particularly to a fiber, a preparation method thereof, a yarn and a fabric. Background Art

[0002] In recent years, with the continuous improvement of people's living standards and the increasing requirements for the quality of life, the wearing comfort of close-fitting clothes has become the focus of users' attention. Especially in summer, users often choose comfortable underwear that is breathable and can feel cool when worn. At present, most of the underwear materials on the market are fabrics woven from nylon and spandex. Users often feedback that some close-fitting clothes are stuffy and airtight. Although nylon-spandex fabrics have relatively good contact coolness performance, some tight weaving structures often limit the air permeability of the fabrics, causing wearing discomfort to users. Summary of the Invention

[0003] This application provides a fiber, a preparation method thereof, a yarn and a fabric, which can improve the effect of clothes made of the fabric worn by users.

[0004] In the first aspect, a fiber is provided. The fiber is a fiber structure formed by melt spinning a sponge fiber nylon masterbatch, a porous nylon masterbatch, a moissanite nylon masterbatch and a nylon masterbatch; wherein, calcium carbonate is contained in the sponge fiber nylon masterbatch; silicon carbide is contained in the moissanite nylon masterbatch; and crystalline alkaline salt reaction substances are contained in the porous fiber masterbatch; wherein,

[0005] The fiber has an uneven structure formed after the crystalline alkaline salt reaction substances are dissolved or melted.

[0006] In the above technical solution, the fiber structure formed by melt spinning a sponge fiber nylon masterbatch, a porous nylon masterbatch, a moissanite nylon masterbatch and a nylon masterbatch has good moisture absorption and air permeability, maintains the comfort of the microenvironment on the surface of the user's close-fitting skin, provides a material with cool and breathable performance, increases the moisture absorption and air permeability of the fabric without changing the tissue structure, reduces the stuffy feeling felt by the user when wearing close-fitting clothes, and at the same time brings a cool wearing experience to the user in the hot summer.

[0007] In a specific feasible embodiment, the components of nylon, calcium carbonate and silicon carbide in the fiber are:

[0008] The component ratio of nylon is: 60% - 70%

[0009] The component ratio of calcium carbonate is: 15% - 20%

[0010] The component ratio of silicon carbide is: 15% - 20%.

[0011] In a second aspect, a method for preparing fibers is provided, the method comprising the following steps:

[0012] Fuse sponge fiber nylon masterbatch, porous nylon masterbatch, moissanite nylon masterbatch and nylon masterbatch; wherein, calcium carbonate is contained in the sponge fiber nylon masterbatch; silicon carbide is contained in the moissanite nylon masterbatch; and crystalline basic salt reaction substances are contained in the porous fiber masterbatch;

[0013] Form fibers by spinning, and the fibers have uneven structures formed after the dissolution or ablation of the crystalline basic salt reaction substances.

[0014] In the above technical solution, the fiber structure formed by fusing and spinning sponge fiber nylon masterbatch, porous nylon masterbatch, moissanite nylon masterbatch and nylon masterbatch has good moisture absorption and air permeability, maintains the comfort of the microenvironment on the surface of the user's skin close to the body, provides a material with cool feeling and air permeability, increases the moisture absorption and air permeability of the fabric without changing the tissue structure, reduces the stuffy feeling felt by the user when wearing close-fitting clothes, and at the same time brings a cool wearing experience to the user in the hot summer.

[0015] In a specific feasible embodiment, the method further comprises:

[0016] Clean the sponge and extract calcium carbonate in the sponge;

[0017] Prepare a mixed solution using alkali, urea and water, and add nylon chips to the mixed solution to prepare a spinning dope;

[0018] Fuse the extracted calcium carbonate with the spinning dope, and obtain sponge fiber nylon masterbatch by melt spinning and pelletizing; wherein, the sponge fiber nylon masterbatch has a porous structure.

[0019] In a specific feasible embodiment, the method further comprises:

[0020] Grind moissanite and extract silicon carbide;

[0021] Form nano-scale silicon carbide particles from the extracted silicon carbide through nanotechnology;

[0022] Mix nylon chips with silicon carbide particles and pelletize to form moissanite nylon masterbatch.

[0023] In a specific feasible embodiment, the method further comprises:

[0024] React and fuse nylon masterbatch with basic salt reaction substances, and the amide bonds in the nylon masterbatch are broken;

[0025] Generate porous nylon masterbatch by melt spinning and pelletizing.

[0026] In a specific feasible implementation, the composition ratios of the sponge fiber nylon masterbatch, porous nylon masterbatch, moissanite nylon masterbatch, and nylon masterbatch are as follows:

[0027] The composition ratio of the sponge fiber nylon masterbatch is: 15% - 20%;

[0028] The composition ratio of the moissanite nylon masterbatch is: 15% - 20%;

[0029] The composition ratio of the porous nylon masterbatch is: 25% - 30%;

[0030] The composition ratio of the nylon masterbatch is: 30% - 45%.

[0031] In a specific feasible implementation, the formation of fibers by spinning specifically is as follows:

[0032] Spinning, cooling, drawing, and texturing the mixture after fusing the sponge fiber nylon masterbatch, porous nylon masterbatch, moissanite nylon masterbatch, and nylon masterbatch to form fibers; and the concave-convex structure formed after the crystallization, dissolution, or ablation of the alkaline salt reaction substances.

[0033] In the third aspect, a yarn is provided, and the yarn is a yarn woven from the fibers prepared by the fiber preparation method described in any one of the above.

[0034] In the above technical solution, the fiber structure formed by fusing and spinning the sponge fiber nylon masterbatch, porous nylon masterbatch, moissanite nylon masterbatch, and nylon masterbatch has good moisture absorption and air permeability, maintains the comfort of the microenvironment on the surface of the user's skin close to the body, provides a material with a cool feeling and air permeability, increases the moisture absorption and air permeability of the fabric without changing the tissue structure, reduces the stuffy feeling felt by the user when wearing close-fitting clothes, and at the same time, in the hot summer, brings a cool wearing experience to the user.

[0035] In the fourth aspect, a fabric is provided, and the fabric is woven from the fibers described in any one of the above.

[0036] In the above technical solution, the fiber structure formed by fusing and spinning the sponge fiber nylon masterbatch, porous nylon masterbatch, moissanite nylon masterbatch, and nylon masterbatch has good moisture absorption and air permeability, maintains the comfort of the microenvironment on the surface of the user's skin close to the body, provides a material with a cool feeling and air permeability, increases the moisture absorption and air permeability of the fabric without changing the tissue structure, reduces the stuffy feeling felt by the user when wearing close-fitting clothes, and at the same time, in the hot summer, brings a cool wearing experience to the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a flowchart of the fiber preparation provided by the embodiment of the present application. Detailed implementation manners

[0038] In order to make the objectives, technical solutions, and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings.

[0039] It should be noted that unless otherwise defined, the technical terms or scientific terms used in one or more embodiments of this specification should have the ordinary meanings understood by those of ordinary skill in the art to which the present disclosure pertains. The "first", "second", and similar terms used in one or more embodiments of this specification do not denote any order, quantity, or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or items appearing before this word cover the elements or items listed after this word and their equivalents, without excluding other elements or items. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0040] To facilitate the understanding of the fabric provided in the embodiments of the present application, its application scenarios will be described first. The fabric provided in the embodiments of the present application is used to weave into clothes. At present, most of the underwear materials on the market are fabrics woven from polyamide and spandex. Users often feedback that some close-fitting clothes have problems such as stuffy sweating and poor breathability. Although polyamide-spandex fabrics have relatively good contact coolness performance, some tight weaving organizational structures often limit the breathability of the fabric, causing wearing discomfort to users.

[0041] In view of this, a revolutionary material solution is sought. To solve the pain points of users and maintain the comfort of the microenvironment on the surface of the users' close-fitting skin, a material with coolness and breathability performance is provided to increase the moisture absorption and breathability of the fabric without changing the organizational structure, reduce the stuffy feeling felt by users when wearing close-fitting clothes, and at the same time bring a cool wearing experience to users in the hot summer. The following will be described in detail with specific embodiments.

[0042] The embodiments of the present application provide a fiber, which is a fiber structure formed by fusing and spinning sponge fiber polyamide masterbatch, porous polyamide masterbatch, moissanite polyamide masterbatch, and polyamide masterbatch. That is, the raw materials used for the fiber disclosed in the present application are prepared from sponge fiber polyamide masterbatch, porous polyamide masterbatch, moissanite polyamide masterbatch, and polyamide masterbatch. Among them, the sponge fiber polyamide masterbatch contains calcium carbonate; the moissanite polyamide masterbatch contains silicon carbide; the porous fiber masterbatch contains crystalline alkaline salt reaction substances.

[0043] During preparation, the sponge fiber nylon masterbatch, porous nylon masterbatch, moissanite nylon masterbatch and nylon masterbatch are fused, and through processes such as spinning, cooling, wire drawing and texturing, physical mixing occurs between the materials in the sponge fiber nylon masterbatch, porous nylon masterbatch, moissanite nylon masterbatch and nylon masterbatch to form a fiber structure. During the preparation process, the crystals of alkaline salt reaction substances will dissolve or ablate, thereby forming an uneven structure on the prepared fiber after the crystals of alkaline salt reaction substances dissolve or ablate.

[0044] When using the above masterbatch to prepare fibers, the materials in the sponge fiber nylon masterbatch can provide natural antibacterial and mite-proof effects, the materials in the moissanite nylon masterbatch can bring a cool feeling, and the crystals of alkaline salt reaction substances in the porous nylon masterbatch can make the formed fibers have an uneven structure, achieving the effect of moisture absorption and breathability.

[0045] It can be seen from the above description that the fibers provided in the embodiments of the present application can have good moisture absorption and breathability performance through the fiber structure formed by fusing the sponge fiber nylon masterbatch, porous nylon masterbatch, moissanite nylon masterbatch and nylon masterbatch by spinning, maintaining the comfort of the microenvironment on the surface of the user's skin in contact, providing materials with cool and breathable performance, increasing the moisture absorption and breathability performance of fabrics without changing the tissue structure, reducing the stuffy feeling felt by users when wearing close-fitting clothes, and at the same time, bringing a cool wearing experience to users in the hot summer.

[0046] When using the above masterbatch to prepare fibers, the components of nylon, calcium carbonate and silicon carbide in the fibers are specifically: the component ratio of nylon is 60 - 70%, the component ratio of calcium carbonate is 15 - 20%, and the component ratio of silicon carbide is 15 - 20%.

[0047] It can be seen from the above description that the fibers provided in the embodiments of the present application are prepared by using the above masterbatch, thus providing a yarn with good moisture absorption and breathability performance to solve the pain points of users, maintaining the comfort of the microenvironment on the surface of the user's skin in contact, providing materials with cool and breathable performance, increasing the moisture absorption and breathability performance of fabrics without changing the tissue structure, reducing the stuffy feeling felt by users when wearing close-fitting clothes, and at the same time, bringing a cool wearing experience to users in the hot summer.

[0048] As Figure 1 shown, the embodiments of the present application also provide a method for preparing fibers, and the method includes the following steps:

[0049] Step 001: Fuse the sponge fiber nylon masterbatch, porous nylon masterbatch, moissanite nylon masterbatch and nylon masterbatch;

[0050] Specifically, when preparing the sponge fiber nylon masterbatch, the following preparation method can be adopted:

[0051] Step 1: Clean the sponge and extract calcium carbonate from the sponge;

[0052] Specifically, clean the marine organism - sponge, and extract its active ingredient - calcium carbonate through extraction technology.

[0053] Step 2: Prepare a mixed solution with alkali, urea and water, and add nylon chips into the mixed solution to prepare a spinning dope;

[0054] Specifically, mix alkali, urea and water, and make them evenly fused through sufficient stirring to form a mixed solution with specific chemical properties. Then, add nylon chips and the mixed solution into a reaction vessel to prepare the mixed solution. Make the nylon chips fully dissolve in the solvent to form a uniform spinning dope. It should be understood that the stirring speed and temperature need to be adjusted according to specific raw materials and process conditions to ensure that the nylon chips can be completely dissolved and the properties of the spinning dope are stable.

[0055] Step 3: Combine the extracted calcium carbonate with the spinning dope, and obtain sponge fiber nylon masterbatch through melt spinning and pelletizing; among them, the sponge fiber nylon masterbatch has a porous structure.

[0056] When preparing the porous nylon masterbatch, the following preparation method can be adopted:

[0057] Step I: React and combine the nylon masterbatch with an alkaline salt reaction substance, and the amide bonds in the nylon masterbatch are broken;

[0058] Specifically, the alkaline salt reaction substance can be sodium hydroxide.

[0059] Step II: Generate a porous nylon masterbatch through melt spinning and pelletizing.

[0060] Specifically, after melt spinning and pelletizing and cooling, the alkaline salt reactant remains in the porous masterbatch.

[0061] When preparing the moissanite nylon masterbatch, the following preparation method can be adopted:

[0062] Step 010: Grind moissanite and extract silicon carbide;

[0063] Specifically, select moissanite with hard texture and uniform color as the main raw material, first mechanically grind the large-particle moissanite, then ultrasonically grind it, and extract its active ingredient - silicon carbide through special technical processes.

[0064] Step 020: Through nanotechnology, form the extracted silicon carbide into nanoscale silicon carbide particles;

[0065] Specifically, through nanotechnology, the ground silicon carbide is formed into nanoscale particles.

[0066] Step 030: Mix nylon chips with silicon carbide particles and granulate them to form moissanite nylon masterbatch.

[0067] Specifically, mix nylon chips with silicon carbide particles and granulate them;

[0068] It can be seen from the above preparation method of the masterbatch that in the prepared masterbatch, the sponge fiber nylon masterbatch contains calcium carbonate; the moissanite nylon masterbatch contains silicon carbide; the porous fiber masterbatch contains crystalline basic salt reaction substances.

[0069] During specific mixing, the composition ratios of the sponge fiber nylon masterbatch, the porous nylon masterbatch, the moissanite nylon masterbatch and the nylon masterbatch are as follows: the composition ratio of the sponge fiber nylon masterbatch is 15 - 20%; the composition ratio of the moissanite nylon masterbatch is 15 - 20%; the composition ratio of the porous nylon masterbatch is 25 - 30%; the composition ratio of the nylon masterbatch is 30 - 45%.

[0070] Step 002: Form fibers by spinning, and the uneven structure formed after the crystalline basic salt reaction substances contained in the porous fiber masterbatch dissolve or melt.

[0071] Specifically, spin, cool, draw and texturize the mixture after fusing the sponge fiber nylon masterbatch, the porous nylon masterbatch, the moissanite nylon masterbatch and the nylon masterbatch to form fibers; and the uneven structure formed after the crystalline basic salt reaction substances dissolve or melt.

[0072] The fiber structure formed by fusing and spinning the sponge fiber nylon masterbatch, the porous nylon masterbatch, the moissanite nylon masterbatch and the nylon masterbatch has good moisture absorption and air permeability, maintains the comfort of the microenvironment on the surface of the user's skin, provides a material with cool feeling and air permeability, increases the moisture absorption and air permeability of the fabric without changing the tissue structure, reduces the stuffy feeling felt by the user when wearing close-fitting clothes, and at the same time brings a cool wearing experience to the user in the hot summer.

[0073] Example 1

[0074] In the embodiment of the present application, a fiber was prepared, and the specific process is as follows:

[0075] Step a: Fuse 20% sponge fiber nylon masterbatch, 30% porous nylon masterbatch, 20% moissanite nylon masterbatch and 30% nylon masterbatch;

[0076] Step b: Form fibers by spinning, and the uneven structure formed after the crystalline basic salt reaction substances contained in the porous fiber masterbatch dissolve or melt.

[0077] Example 2

[0078] In this example, a fiber was prepared. The specific preparation process differed from that of Example 1 in that:

[0079] In step a, 17% sponge fiber polyamide masterbatch, 28% porous polyamide masterbatch, 18% moissanite polyamide masterbatch, and 37% polyamide masterbatch were fused.

[0080] Example 3

[0081] In this example, a fiber was prepared. The specific preparation process differed from that of Example 1 in that:

[0082] In step a, 15% sponge fiber polyamide masterbatch, 25% porous polyamide masterbatch, 15% moissanite polyamide masterbatch, and 45% polyamide masterbatch were fused.

[0083] Comparative Example 1

[0084] In this example, a fiber was prepared. The specific preparation process differed from that of Example 1 in that:

[0085] In step a, only polyamide masterbatch was used.

[0086] The fabrics woven from the fibers prepared in Examples 1 - 3 and the comparative example were tested for performance in the same manner. The test conditions were as follows:

[0087] Water absorption rate: GB / T 21655.2 - 2019 Textiles - Evaluation of moisture absorption and quick - drying properties - Part 2: Dynamic moisture transfer method.

[0088] Anti - mite and antibacterial properties: GB / T 24253 - 2009 Evaluation of anti - mite properties of textiles, T / GDBX 056 - 2022 Antibacterial textiles (AAAAAAA level).

[0089] Cooling sensation: Contact cooling coefficient Q / BY M015 - 2024, maximum temperature drop for continuous cooling Q / BY M015 - 2024.

[0090] Air permeability: Air permeability refers to the volume of gas passing through a unit area per unit time, usually expressed as the volume of gas (cubic centimeters / minute) passing through a 100 - square - centimeter fabric per minute. The measurement method of air permeability can adopt the air - flow method or the water - vapor transmission method, etc.

[0091] The test results are shown in Table 1:

[0092] Table 1

[0093]

[0094]

[0095] As can be seen from Table 1 above, the moisture absorption and quick-drying effect of the fibers prepared by the preparation methods provided in Examples 1 to 3 of the present application is significantly greater than that of Comparative Example 1, and the properties such as mite-proof, antibacterial, contact cool feeling coefficient, continuous cool feeling and air permeability are also significantly greater than the same properties in the comparative examples.

[0096] The present application also provides a yarn, which is woven from the fibers prepared by any of the above preparation methods.

[0097] In the above technical solution, the fiber structure formed by fusing and spinning the sponge fiber polyamide masterbatch, porous polyamide masterbatch, moissanite polyamide masterbatch and polyamide masterbatch has good moisture absorption and air permeability performance, maintains the comfort of the microenvironment on the surface of the user's skin close to the body, provides a material with cool feeling and air permeability performance, increases the moisture absorption and air permeability performance of the fabric without changing the tissue structure, reduces the stuffy feeling felt by the user when wearing close-fitting clothes, and at the same time brings a cool wearing experience to the user in the hot summer.

[0098] The present application also provides a fabric, which is woven from the fibers of any of the above items.

[0099] In the above technical solution, the fiber structure formed by fusing and spinning the sponge fiber polyamide masterbatch, porous polyamide masterbatch, moissanite polyamide masterbatch and polyamide masterbatch has good moisture absorption and air permeability performance, maintains the comfort of the microenvironment on the surface of the user's skin close to the body, provides a material with cool feeling and air permeability performance, increases the moisture absorption and air permeability performance of the fabric without changing the tissue structure, reduces the stuffy feeling felt by the user when wearing close-fitting clothes, and at the same time brings a cool wearing experience to the user in the hot summer.

[0100] One or more embodiments of this specification are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of this specification shall be included in the protection scope of this disclosure.

[0101] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application, and all of them should be covered by the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A fiber, characterized in that, The fiber is a fiber structure formed by fusing and spinning sponge fiber nylon masterbatch, porous nylon masterbatch, moissanite nylon masterbatch and nylon masterbatch; wherein, the sponge fiber nylon masterbatch contains calcium carbonate; the moissanite nylon masterbatch contains silicon carbide; the porous fiber masterbatch contains crystalline alkaline salt reaction substances; among them, The fiber has an uneven structure formed after the dissolution or ablation of the crystalline alkaline salt reaction substances.

2. The fiber according to claim 1, characterized in that, The components of nylon, calcium carbonate and silicon carbide in the fiber are: The component ratio of the nylon is: 60% - 70% The component ratio of the calcium carbonate is: 15% - 20% The component ratio of the silicon carbide is: 15% - 20%.

3. A method for preparing a fiber, characterized in that, It includes the following steps: Fuse the sponge fiber nylon masterbatch, porous nylon masterbatch, moissanite nylon masterbatch and nylon masterbatch; wherein, the sponge fiber nylon masterbatch contains calcium carbonate; the moissanite nylon masterbatch contains silicon carbide; the porous fiber masterbatch contains crystalline alkaline salt reaction substances; Form fibers by spinning, and the fibers have an uneven structure formed after the dissolution or ablation of the crystalline alkaline salt reaction substances.

4. The method for preparing the fiber according to claim 3, characterized in that, The method further includes: Clean the sponge and extract calcium carbonate in the sponge; Prepare a mixed solution with alkali, urea and water, and add nylon chips to the mixed solution to prepare a spinning dope; Fuse the extracted calcium carbonate with the spinning dope, and obtain sponge fiber nylon masterbatch by spinning and granulating; wherein, the sponge fiber nylon masterbatch has a porous structure.

5. The method for preparing the fiber according to claim 3, wherein, The method further includes: Grind moissanite and extract silicon carbide; Through nanotechnology, form nanoscale silicon carbide particles from the extracted silicon carbide; Mix and granulate nylon chips and silicon carbide particles to form moissanite nylon masterbatch.

6. The method for preparing the fiber according to claim 3, characterized in that, The method further includes: React and fuse the nylon masterbatch with the alkaline salt reaction substances, and the amide bonds in the nylon masterbatch are broken; Generate porous nylon masterbatch by spinning and granulating.

7. The method for preparing the fiber according to claim 3, characterized in that, The component ratios of the sponge fiber nylon masterbatch, porous nylon masterbatch, moissanite nylon masterbatch and nylon masterbatch are: The component ratio of the sponge fiber nylon masterbatch is: 15% - 20%; The component ratio of the moissanite nylon masterbatch is: 15% - 20%; The component ratio of the porous nylon masterbatch is: 25% - 30%; The component ratio of the nylon masterbatch is: 30% - 45%.

8. The method for preparing the fiber according to any one of claims 3 to 7, characterized in that, The specific process of forming fibers by spinning is: Spinning, cooling, drawing and texturing the mixture after fusing the sponge fiber nylon masterbatch, porous nylon masterbatch, moissanite nylon masterbatch and nylon masterbatch to form fibers; and an uneven structure is formed after the dissolution or ablation of the crystalline alkaline salt reaction substances.

9. A yarn, characterized in that, The yarn is woven from fibers prepared by the fiber preparation method according to any one of claims 3 - 8.

10. A fabric, characterized in that, The fabric is woven from the yarn according to claim 9.