Warm-keeping fluffy polyester coated yarn

By combining the core yarn, the covering layer, and the wrapping yarn, and by using graphene-modified hollow polyester and hollow coffee carbon polyester fibers, the warmth and abrasion resistance of polyester yarn are improved, solving the problem of insufficient warmth of polyester yarn and achieving better clothing performance.

CN223793296UActive Publication Date: 2026-01-13JIAXING LIANGUAN TEXTILE CO LTD
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Patent Information

Application Number
CN202520070667.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-13
Publication Date
2026-01-13
Estimated Expiration
2035-01-13

AI Technical Summary

Technical Problem

Existing polyester yarns are insufficient in terms of warmth retention, making it difficult to meet consumers' diverse performance needs for clothing, especially in terms of poor heat retention in cold environments.

Method used

The yarn adopts a combination structure of core yarn, first covering layer, first wrapping yarn and second wrapping yarn. The core yarn is an elastic yarn, the first covering layer is a hollow polyester staple fiber layer, the first wrapping yarn is a thermal insulation yarn, and the second wrapping yarn is an antibacterial yarn, forming a mesh-like cross-binding structure. The yarn's warmth retention and abrasion resistance are improved by utilizing the bulkiness and antibacterial and deodorizing functions of graphene-modified hollow polyester staple fiber and hollow coffee carbon polyester fiber.

Benefits of technology

It achieves good elasticity, fluffiness, and warmth retention in the yarn, improves the overall abrasion resistance of the yarn, and also has antibacterial properties, providing better warmth and comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a warm-keeping fluffy polyester covered yarn which comprises a core yarn, a first covering layer, a first fasciated yarn and a second fasciated yarn. The first covering layer covers the outer part of the core yarn; the first wrapping yarn and the second wrapping yarn are spirally wound outside the first coating layer in opposite directions; the core yarns are elastic yarns; the first coating layer is a hollow polyester staple fiber layer; the first fasciated yarn is a warm-keeping yarn; and the second fasciated yarns are antibacterial yarns. Based on the warm-keeping fluffy polyester coated yarn, the elastic core yarn is used for providing good elasticity for the whole yarn, the first coating layer has good fluffy effect and warm-keeping and heat-preserving effect, and the first wrapping yarn and the second wrapping yarn are arranged outside the first coating layer to form a net-shaped crossed bundling and wrapping structure. The wear-resisting performance of the whole yarn is improved, and meanwhile the anti-bacterial and warm-keeping functions are achieved.
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Description

Technical Field

[0001] This utility model relates to a polyester covered yarn, specifically a warm and fluffy polyester covered yarn. Background Technology

[0002] In the textile industry, people's performance requirements for fabrics are becoming increasingly diversified, thus placing higher demands on yarns. With the improvement of living standards, consumers not only require clothing to be aesthetically pleasing, but also have higher expectations for functionality such as warmth.

[0003] Polyester, as a synthetic fiber, possesses numerous advantages such as high strength, abrasion resistance, and good chemical stability, making it widely used in the textile industry. Furthermore, with technological advancements, the performance of polyester fibers continues to be optimized. In cold environments, heat preservation is crucial. The loose fiber structure effectively prevents air convection, forming a stagnant air layer. Since air is a poor conductor of heat, this stagnant air layer reduces heat loss from the body, thus achieving a warming effect. Therefore, it is necessary to provide a warm and fluffy polyester covered yarn. Utility Model Content

[0004] The purpose of this invention is to provide a warm and fluffy polyester covered yarn, which is designed to have a better fluffy and warm effect than ordinary polyester yarn.

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: a warm and fluffy polyester covered yarn, comprising: a core yarn, a first covering layer, a first wrapping yarn, and a second wrapping yarn; the first covering layer covers the outside of the core yarn; the first wrapping yarn and the second wrapping yarn are spirally wound around the outside of the first covering layer in opposite directions; the core yarn is an elastic yarn; the first covering layer is a hollow polyester staple fiber layer; the first wrapping yarn is a warm yarn; and the second wrapping yarn is an antibacterial yarn.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: the elastic yarn is T400 filament.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the elastic yarn is ring-spun polyether ester elastic yarn.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the hollow polyester short fiber in the hollow polyester short fiber layer is graphene-modified hollow polyester short fiber.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the heat-insulating yarn is hollow coffee carbon polyester fiber yarn.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: the antibacterial yarn is an antibacterial and deodorizing regenerated cellulose fiber yarn.

[0011] The beneficial effects of this utility model are as follows: Based on the warm and fluffy polyester covered yarn of this utility model, the elastic core yarn provides good elasticity to the yarn as a whole. The first covering layer has good fluffy effect and warm insulation effect. The first wrapping yarn and the second wrapping yarn form a mesh cross-binding and wrapping structure outside the first covering layer, which is conducive to improving the overall wear resistance of the yarn. At the same time, it also has antibacterial and warm insulation functions. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the cross-sectional structure of the warm and fluffy polyester covered yarn involved in this utility model;

[0013] In the diagram: 1-core yarn, 2-first covering layer, 3-first wrapping yarn, 4-second wrapping yarn. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0015] Example 1

[0016] Combination Figure 1 This embodiment provides a detailed description of a warm and fluffy polyester covered yarn, comprising: a core yarn, a first covering layer, a first wrapping yarn, and a second wrapping yarn; the first covering layer covers the outside of the core yarn; the first wrapping yarn and the second wrapping yarn are spirally wound around the outside of the first covering layer in opposite directions; the core yarn is an elastic yarn; the first covering layer is a hollow polyester staple fiber layer; the first wrapping yarn is a warm yarn; and the second wrapping yarn is an antibacterial yarn.

[0017] The first and second wrapping yarns form a mesh-like cross-binding and wrapping structure outside the first covering layer, which greatly enhances the structural stability of the yarn. This mesh structure can effectively reduce the wear of the core yarn caused by external friction and greatly help to improve the overall wear resistance of the yarn.

[0018] Furthermore, the elastic yarn is T400 filament. T400 filament is composed of PET and PTT compounded side by side. The PET and PTT are processed and compounded in a composite spinneret, and then stretched and heat-set. T400 filament has a large elastic elongation and good elastic recovery, and its elasticity is better than that of PTT and PET fibers. It also has high tensile strength, a soft hand feel, good moisture absorption and perspiration wicking, and good wrinkle resistance, which can provide good elasticity for the yarn body.

[0019] Furthermore, the hollow polyester staple fibers in the hollow polyester staple fiber layer are graphene-modified hollow polyester staple fibers. Specifically, the fineness of the graphene-modified hollow polyester staple fibers is 5.5 dtex. The graphene-modified hollow polyester staple fibers are produced on a large-capacity direct-spinning hollow polyester staple fiber production line by adding graphene masterbatch to polyethylene terephthalate melt through an online addition device. Graphene integrates multiple functions such as far-infrared heating, negative ion release, antibacterial and antimicrobial properties, UV resistance, and antistatic properties. The graphene-modified hollow polyester staple fibers have a three-dimensional crimped shape, which gives the fibers fluffiness and resilience. The 5.5 dtex graphene-modified hollow polyester staple fiber has 6.5 crimps, a crimp rate of 16.7%, an antibacterial rate of 99.5%, and a heat retention rate of 94%, exhibiting excellent fluffiness and heat retention effects.

[0020] Furthermore, the insulating yarn is a hollow coffee carbon polyester fiber yarn. Hollow coffee carbon polyester fiber is made from coffee grounds that have been calcined and ground into nanoparticles. These nanoparticles are then processed into masterbatches, blended with a certain amount of polyester chips, and spun into fibers. It possesses multiple functions, including antibacterial and deodorizing properties, heat retention and warmth, and UV protection, and also has a comfortable feel. The circular hollow structure makes the fiber more fluffy, providing good resilience and high warmth retention, while also having a large specific surface area and being lightweight.

[0021] Furthermore, the antibacterial yarn is an antibacterial and deodorizing regenerated cellulose fiber yarn. Regenerated cellulose fibers, made from cellulose, are soft, comfortable, and highly absorbent, and are biodegradable, resulting in minimal environmental pollution during production. Specifically, the antibacterial and deodorizing regenerated cellulose fiber is prepared by adding an aqueous solution of green tea extract and a hydrated solution of coffee charcoal powder to the regenerated cellulose fiber spinning solution using a blending method, followed by a wet spinning process. While maintaining the original excellent properties of the regenerated cellulose fiber, it imparts good antibacterial and deodorizing functions, exhibiting good antibacterial effects against Staphylococcus aureus, Escherichia coli, and Candida albicans. This is because both green tea extract and coffee charcoal have antibacterial properties, strongly inhibiting bacteria and fungi, thus significantly reducing odor components produced by bacterial decomposition of human secretions, indirectly deodorizing the odor.

[0022] Example 2

[0023] The difference from Example 1 is that the elastic yarn is ring-spun polyether ester elastic yarn. Ring-spun polyether ester elastic yarn is produced by spinning elastic short fibers of a blend of polyether ester and polybutylene terephthalate using a traditional ring spinning process. The ring-spun polyether ester elastic yarn has a linear density of 229.2 dtex, a strength of 1.64 cN / dtex, and a breaking elongation of 23.3%. At a constant elongation stretch of 15%, its elastic recovery rate is greater than 95%, and after repeated cyclic stretching of 20%, the elastic recovery rate still reaches 90%, demonstrating excellent elasticity. As a core yarn, it can provide good elasticity to the entire yarn.

[0024] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A thermal, bulky, polyester covered yarn characterized by, Comprise: a core yarn (1), a first covering layer (2), a first wrapped yarn (3) and a second wrapped yarn (4); the first covering layer (2) is wrapped outside the core yarn (1); the first wrapped yarn (3) and the second wrapped yarn (4) are spirally wrapped outside the first covering layer (2) in opposite directions; the core yarn (1) is an elastic yarn; the first covering layer (2) is a hollow polyester staple fiber layer; the first wrapped yarn (3) is a warm-keeping yarn; and the second wrapped yarn (4) is an antibacterial yarn.

2. The thermal and bulky polyester covered yarn according to claim 1, wherein, The elastic yarn is a T400 filament.

3. The thermal, bulky polyester covering yarn of claim 1 wherein, The elastic yarn is a ring spinning polyether ester elastic yarn.

4. The thermal, bulky polyester covering yarn of claim 1 wherein, The hollow polyester staple fiber in the hollow polyester staple fiber layer is a graphene modified hollow polyester staple fiber.

5. The thermal, bulky polyester covering yarn of claim 1 wherein, The warm-keeping yarn is a hollow coffee carbon polyester fiber yarn.

6. The thermal, bulky polyester covering yarn of claim 1 wherein, The antibacterial yarn is an antibacterial and deodorizing regenerated cellulose fiber yarn.