Elastic temperature-sensing color-changing yarn
By introducing color-changing yarn and temperature-sensitive color-changing coating into the yarn, the problem of monotonous yarn patterns is solved, and the yarn is made resistant to breakage and temperature-induced color changes during the stretching process, thus improving the yarn's aesthetics and tensile strength.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-03-03
AI Technical Summary
Existing yarn products are monotonous in style and lack distinctive features, failing to meet people's increasing demands for quality and aesthetics.
It adopts a structural design with an elastic core, a color-changing yarn body and a temperature-sensitive color-changing coating on the outside. The color-changing yarn body is made of polyester yarn, with tensile yarn wrapped around the outside to increase tensile strength, and is fixed by adhesive. The temperature-sensitive color-changing coating is an acrylic coating with a thickness of 0.2-0.4mm.
It effectively prevents breakage during stretching, improves aesthetics, and achieves color change through temperature variations, thereby enhancing the tensile strength and appearance of the yarn.
Smart Images

Figure CN223963632U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of textile yarn technology, and in particular to an elastic temperature-sensitive color-changing yarn. Background Technology
[0002] As people's demands for clothing and textiles increase, textiles not only need to meet basic tactile comfort but also often need to meet many other special requirements and uses. For example, antibacterial properties are often an important standard that affects the processing methods and application areas of raw yarns. Yarn is one type of textile, made from various textile fibers processed into products of a certain fineness for weaving, rope making, thread making, knitting, and embroidery. Existing yarns produce products with monotonous styles and lack distinctive features. As people's living standards improve, their demands for quality and aesthetics also increase, failing to meet people's pursuit of products. Therefore, we propose an elastic temperature-sensitive color-changing yarn. Utility Model Content
[0003] To address the aforementioned problems, this invention provides an elastic, temperature-sensitive, color-changing yarn. This invention solves the problem that existing yarns produce products with monotonous styles and lack distinctive features, failing to meet the growing demands for quality and aesthetics as people's living standards improve.
[0004] This utility model discloses an elastic temperature-sensitive color-changing yarn, comprising a core, characterized in that the core includes an elastic core, a color-changing yarn is provided on the outer side of the elastic core, the color-changing yarn includes polyester filaments, a temperature-sensitive color-changing coating is provided on the outer side of the polyester filaments, two tensile yarns are wound around the outer side of the core, the tensile yarns and the core form a gap that allows the core to extend, and the contact points between the tensile yarns and the core are fixedly connected by an adhesive.
[0005] In the above scheme, the temperature-sensitive color-changing coating is an acrylic coating layer.
[0006] In the above scheme, the thickness of the temperature-sensitive color-changing coating is 0.2-0.4 mm.
[0007] In the above scheme, the color-changing thread has four strands.
[0008] In the above scheme, the color-changing yarn is twisted on the outside of the elastic yarn core.
[0009] The advantages and beneficial effects of this utility model are as follows: This utility model provides an elastic temperature-sensitive color-changing yarn. The temperature-sensitive color-changing coating changes the molecular structure of the organic material due to electron transfer. When the color-changing yarn is stretched, the tensile yarn on the outside of the core straightens, and the distance between the tensile yarn and the core decreases until the tensile yarn and the core adhere to each other. The tensile yarn passing through from the inside effectively prevents the color-changing yarn from breaking due to excessive stretching. This type of color-changing yarn has a simple structure, good tensile strength, and effectively avoids the probability of damage due to stretching. The yarn changes color with temperature, effectively improving the aesthetics of the yarn. Attached Figure Description
[0010] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a cross-sectional view of the elastic core of this utility model.
[0013] In the diagram: 1. Core; 11. Elastic core; 12. Color-changing yarn; 121. Polyester yarn; 122. Temperature-sensitive color-changing coating; 2. Tensile yarn. Detailed Implementation
[0014] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.
[0015] like Figure 1-2As shown, this utility model is an elastic temperature-sensitive color-changing yarn, including a core 1, wherein the core 1 includes an elastic core 11, and a color-changing yarn 12 is provided on the outside of the elastic core 11. The color-changing yarn 12 includes polyester filaments 121, and a temperature-sensitive color-changing coating 122 is provided on the outside of the polyester filaments 121. The temperature-sensitive color-changing coating 122 causes the molecular structure of the organic material to change due to electron transfer, thereby achieving a color change. Two tensile yarns 2 are wound around the outside of the core 1. The tensile yarn 2 and the core 1 form a gap that allows the core 1 to extend. The tensile yarn 2 increases the overall tensile strength of the color-changing yarn. When the color-changing yarn is stretched, the tensile yarn 2 located on the outside of the core 1 straightens, and the gap between the tensile yarn 2 and the core 1 decreases until the tensile yarn 2 and the core 1 are in close contact. The tensile yarn 2 can effectively prevent the color-changing yarn from breaking due to excessive stretching. The contact point between the tensile yarn 2 and the core 1 is fixedly connected by an adhesive.
[0016] The thermochromic coating 122 is an acrylic coating layer.
[0017] The thickness of the thermochromic coating 122 is 0.2-0.4 mm.
[0018] The color-changing thread 12 has four strands.
[0019] The color-changing yarn 12 is twisted on the outside of the elastic yarn core 11.
[0020] Specifically, in this invention, the thermochromic coating 122 causes the molecular structure of the organic material to change due to electron transfer. When the color-changing yarn is stretched, the tensile yarn 2 located on the outside of the core 1 straightens, and the distance between the tensile yarn 2 and the core 1 decreases until the tensile yarn 2 and the core 1 adhere to each other. The tensile yarn 2 can effectively prevent the color-changing yarn from breaking due to excessive stretching.
[0021] 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, improvements, etc., 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. An elastic thermo-sensitively colour-changing yarn comprising a core (1), characterised in that, The core (1) comprises an elastic thread core (11), the outer side of the elastic thread core (11) is provided with a color-changing thread body (12), the color-changing thread body (12) comprises a polyester silk (121), the outer side of the polyester silk (121) is provided with a temperature-sensitive color-changing coating (122), the outer side of the core (1) is wound with two anti-tension yarns (2), the anti-tension yarns (2) and the core (1) form a spacing for the extension of the core (1), and the contact points of the anti-tension yarns (2) and the core (1) are fixedly connected through a colloid.
2. An elastic temperature-sensitive color-changing yarn according to claim 1, characterized in that, The temperature-sensitive color-changing coating (122) is an acrylic coating layer.
3. An elastic temperature-sensitive color-changing yarn according to claim 1, characterized in that, The temperature-sensitive color-changing coating (122) has a thickness of 0.2-0.4 mm.
4. An elastic temperature-sensitive color-changing yarn according to claim 1, characterized in that, The color-changing thread body (12) is provided with four strands.
5. An elastic temperature-sensitive color-changing yarn according to claim 1, characterized in that, The color-changing thread body (12) is twisted on the outer side of the elastic thread core (11).