Breathable wear-resistant polyester yarn

Abstract

The utility model is applicable to the technical field of polyester yarns, and provides a breathable wear-resistant polyester yarn, which comprises hollow polyester fibers and superfine polyester fibers, a plurality of hollow polyester fibers are arranged in parallel, the section of each hollow polyester fiber 1 is in a hollow regular hexagon shape, graphene is filled in each hollow polyester fiber, and the superfine polyester fibers are arranged in parallel. The periphery of the multiple hollow polyester fibers is wound with superfine polyester fibers, a temperature-sensitive fiber network layer is arranged between the multiple hollow polyester fibers and the superfine polyester fibers, the temperature-sensitive fiber network layer wraps multiple pieces of graphene, and a composite wear-resistant layer is arranged on the surface of the superfine polyester fibers. A bionic micro-nano modification layer is arranged on the surface of the composite wear-resistant layer. The self-cleaning heat-conducting breathable fabric has the advantages of being high in heat-conducting and sweat-discharging performance, capable of achieving dynamic breathable regulation and control, high in abrasion resistance and capable of being self-cleaned.

Description

Technical Field

[0001] This utility model relates to the field of polyester yarn technology, and in particular to a breathable and wear-resistant polyester yarn. Background Technology

[0002] Polyester yarn refers to yarn spun from polyester. Polyester is a type of fiber made from polymers through spinning. It often refers to fibers produced from polyethylene terephthalate (PET) fiber, commonly known as polyester in my country.

[0003] Existing polyester yarns, due to their dense molecular structure, possess excellent strength and abrasion resistance, but lack breathability, making it difficult to meet the material requirements of sportswear, outdoor equipment, and other fields.

[0004] Therefore, in view of the above situation, there is an urgent need to develop a breathable and wear-resistant polyester yarn to overcome the shortcomings in current practical applications. Utility Model Content

[0005] The purpose of this utility model embodiment is to provide a breathable and wear-resistant polyester yarn, aiming to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A breathable and wear-resistant polyester yarn includes hollow polyester fibers and ultrafine polyester fibers. Multiple hollow polyester fibers are arranged in parallel, each hollow polyester fiber is filled with graphene, and ultrafine polyester fibers are wound around the periphery of the multiple hollow polyester fibers. A temperature-sensitive fiber network layer is provided between the multiple hollow polyester fibers and the ultrafine polyester fibers. The temperature-sensitive fiber network layer is coated with multiple graphene. A composite wear-resistant layer is provided on the surface of the ultrafine polyester fibers, and a biomimetic micro-nano modification layer is provided on the surface of the composite wear-resistant layer.

[0008] In a further technical solution, the hollow polyester fiber has a hollow regular hexagonal cross-section.

[0009] In a further technical solution, the graphene used has a particle size of 3-5 μm.

[0010] In a further technical solution, the ultrafine polyester fibers are wound around multiple graphene surfaces in a double helix structure.

[0011] In a further technical solution, the temperature-sensitive fiber network layer is arranged in a sinusoidal pattern, and the temperature-sensitive fiber network layer is made of temperature-sensitive shape memory polyurethane material.

[0012] In a further technical solution, the composite wear-resistant layer is selected as a nano-SiO2-PTFE composite coating.

[0013] In a further technical solution, the biomimetic micro-nano modification layer is constructed by creating a lotus leaf effect micro-papillary structure on the surface of the composite wear-resistant layer and covering it with a periodically arranged graphene quantum dot photosensitive array.

[0014] In summary, the embodiments of this utility model have the following beneficial effects compared with the prior art:

[0015] By filling hollow polyester fibers with graphene, the thermal conductivity and perspiration performance can be effectively enhanced. The use of temperature-sensitive shape memory polyurethane material in the temperature-sensitive fiber network layer enables dynamic breathability control. The nano-SiO-PTFE composite coating can effectively improve abrasion resistance. The biomimetic modification layer gives the polyester yarn structure a self-cleaning function.

[0016] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] In the figure: 1. Hollow polyester fiber; 2. Graphene; 3. Temperature-sensitive fiber network layer; 4. Ultrafine polyester fiber; 5. Composite wear-resistant layer; 6. Bionic micro-nano modification layer. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0020] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0021] like Figure 1 As shown, this utility model embodiment provides a breathable and wear-resistant polyester yarn, including hollow polyester fibers 1 and ultrafine polyester fibers 4. Multiple hollow polyester fibers 1 are arranged in parallel, and each hollow polyester fiber 1 is filled with graphene 2. Ultrafine polyester fibers 4 are wound around the periphery of the multiple hollow polyester fibers 1, and a temperature-sensitive fiber network layer 3 is provided between the multiple hollow polyester fibers 1 and the ultrafine polyester fibers 4. The temperature-sensitive fiber network layer 3 is coated with multiple graphene 2. A composite wear-resistant layer 5 is provided on the surface of the ultrafine polyester fibers 4, and a biomimetic micro-nano modification layer 6 is provided on the surface of the composite wear-resistant layer 5.

[0022] It is understandable that when a sufficient number of graphene 2s are used, the outer edges of multiple graphene 2s will resemble circles, and the number of graphene 2s in the figure does not represent their actual quantity.

[0023] Furthermore, the hollow polyester fiber 1 has a hollow regular hexagonal cross-section.

[0024] Furthermore, the graphene 2 uses particles with a size of 3-5 μm, which can effectively enhance thermal conductivity and perspiration wicking performance.

[0025] Furthermore, the ultrafine polyester fiber 4 is wound in a double helix structure on the surface of multiple graphene 2, and the helix angle is 28°-35°.

[0026] Furthermore, the temperature-sensitive fiber network layer 3 is arranged in a sinusoidal wave shape and is made of temperature-sensitive shape memory polyurethane (SMPU) material. The SMPU fibers are tightly curled below 28°C (human comfort temperature), and the porosity is reduced to 38% of the temperature-sensitive fiber network layer, which enhances wind resistance. When the temperature is ≥32°C, the fibers expand and the porosity increases to 55%, which improves heat dissipation efficiency.

[0027] Furthermore, the composite wear-resistant layer 5 is selected as a nano-SiO2-PTFE composite coating with a coating thickness of 80-120μm.

[0028] Furthermore, the biomimetic micro-nano modification layer 6 is constructed on the surface of the composite wear-resistant layer 5 with a lotus leaf effect micro-papillary structure and covered with a periodically arranged graphene quantum dot (GQD) photosensitive array.

[0029] Understandably, both lotus leaf effect micropapillary structures and graphene quantum dot (GQD) materials are existing technologies. Micropapillary structures can mimic the surface of a lotus leaf to form a superhydrophobic surface, making it easy for water droplets to roll off, carrying away dust and impurities, thus achieving a self-cleaning function. They can also increase the surface roughness of the material, improve wear resistance, and extend service life. As quantum dots, GQDs have excellent photocatalytic properties and can generate electron-hole pairs under light to decompose organic matter, further enhancing the self-cleaning effect.

[0030] In practical applications, a lotus leaf template is replicated on the surface of the composite wear-resistant layer 5 using nanoimprinting (NIL) technology, and then GQDs ink is deposited using inkjet printing technology. The quasi-periodic arrangement is formed through electric field-induced self-assembly.

[0031] In this novel embodiment, by filling graphene 2 into hollow polyester fiber 1, the thermal conductivity and perspiration performance can be effectively enhanced. The temperature-sensitive fiber network layer 3 adopts temperature-sensitive shape memory polyurethane material, which can achieve dynamic breathability control. The nano-SiO2-PTFE composite coating can effectively improve wear resistance. The biomimetic modification layer 6 enables the polyester yarn structure to have a self-cleaning function.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A breathable and wear-resistant polyester yarn, comprising hollow polyester fibers (1) and ultrafine polyester fibers (4), characterized in that, Multiple hollow polyester fibers (1) are arranged in parallel, each hollow polyester fiber (1) is filled with graphene (2), and multiple hollow polyester fibers (1) are wrapped with ultrafine polyester fibers (4). A temperature-sensitive fiber network layer (3) is provided between the multiple hollow polyester fibers (1) and the ultrafine polyester fibers (4). The temperature-sensitive fiber network layer (3) is covered with multiple graphene (2). A composite wear-resistant layer (5) is provided on the surface of the ultrafine polyester fibers (4). A biomimetic micro-nano modification layer (6) is provided on the surface of the composite wear-resistant layer (5).

2. The breathable and wear-resistant polyester yarn according to claim 1, characterized in that, The hollow polyester fiber (1) has a hollow regular hexagonal cross section.

3. The breathable and wear-resistant polyester yarn according to claim 1, characterized in that, The graphene (2) used has a particle size of 3-5 μm.

4. The breathable and wear-resistant polyester yarn according to claim 1, characterized in that, The ultrafine polyester fiber (4) is wound in a double helix structure on the surface of multiple graphene (2).

5. The breathable and wear-resistant polyester yarn according to claim 1, characterized in that, The temperature-sensitive fiber network layer (3) is arranged in a sinusoidal pattern, and the temperature-sensitive fiber network layer (3) is made of temperature-sensitive shape memory polyurethane material.

6. The breathable and wear-resistant polyester yarn according to claim 1, characterized in that, The composite wear-resistant layer (5) is selected as a nano-SiO2-PTFE composite coating.

7. The breathable and wear-resistant polyester yarn according to claim 6, characterized in that, The biomimetic micro-nano modification layer (6) is constructed on the surface of the composite wear-resistant layer (5) with a lotus leaf effect micro-papillary structure and covered with a periodically arranged graphene quantum dot (GQD) photosensitive array.

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