KR-20260067670-A - CONDUCTIVE COVERING YARN WITH SUPPRESSED ELECTRICAL CONDUCTIVITY REDUCTION UNDER REPEATED EXTENSION AND CONTRACTION AND PREPARATION METHOD THEREOF

Abstract

A conductive covering yarn and a method for manufacturing the same are provided, wherein the deterioration of electrical conductivity, such as a decrease in conductivity and/or a decrease in conductivity reliability, can be suppressed or minimized even when repeatedly stretched. The conductive covering yarn comprises a core yarn that does not conduct; and one or more cover yarns covered by the core yarn, wherein at least some of the cover yarns have electrical conductivity.

Inventors

• 정원영
• 김혜림

Assignees

• 한국생산기술연구원

Dates

Publication Date

20260513

Application Date

20241106

Claims (10)

1. Non-conductive core yarn; and It includes one or more cover yarns covered in the above examination, A conductive covering yarn, wherein at least some of the above-mentioned cover yarns have electrical conductivity.
2. In paragraph 1, The above cover yarn consists of two strands, and The above two strands of cover yarn are conductive covering yarns that cover the examination in the same direction.
3. In paragraph 2, The fineness of each of the above cover yarns is a conductive covering yarn with a fineness greater than that of the above examination.
4. In paragraph 3, The above examination includes polyurethane, and The above cover yarn is a conductive covering yarn comprising a silver-coated conductive yarn.
5. In paragraph 4, A conductive covering yarn with a smaller elongation rate than the core elongation rate of the above-mentioned cover yarn.
6. In paragraph 3, With respect to the unit length of the above conductive covering yarn, A conductive covering yarn in which the length of any cover yarn relative to the length of the above examination is 150% or more.
7. Preparing for the Vision Evangelist; Prepare a conductive conductor; and A method for manufacturing a conductor, comprising covering two strands of cover yarn at once on the above-mentioned non-conductor.
8. Elastic and flexible fabric; and The above fabric and a fixed conductor are included, wherein the conductor is, Non-conductive core yarn; and It includes one or more cover yarns covered in the above examination, At least some of the above cover materials are electrically conductive electronic devices.
9. In paragraph 8, The above conductor is an electronic device fixed by penetrating at least partially the above fabric.
10. In paragraph 8, The above electronic device is an electronic device that is a wearable device.

Description

Conductive covering yarn with suppressed electrical conductivity reduction under repeated extension and contraction and preparation method therefor The present invention relates to a conductive covering yarn and a method for manufacturing the same. More specifically, the invention relates to a conductive covering yarn and a method for manufacturing the same in which the deterioration of electrical conductivity, such as a decrease in conductivity and/or a decrease in conductivity reliability, can be suppressed or minimized even when repeatedly stretched. With the recent advancement of technology related to flexible electronic devices, active research on conductive threads is being conducted. Conductive thread (or conductive yarn) is a general term for linear materials or threads that possess electrical or thermal conductivity, and is also referred to as conductive yarn or conductive fiber. Conventional conductive materials are provided as a single monofilament with conductivity, or implemented as a combination of conductive single filaments, a combination of conductive single filaments and non-conductive single filaments, or by coating a conductive material on the surface of a non-conductive single filament or a combination of non-conductive single filaments. FIG. 1 is a schematic diagram of a conductor according to one embodiment of the present invention. Figures 2 and 3 are images showing the results according to Experimental Example 1. Figure 4 is an image showing the results according to Experimental Example 2. Figure 5 is an image showing the results according to Experimental Example 3. The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but can be implemented in various different forms. The embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Furthermore, the scope of patent claims is not a matter describing the technical content that constitutes the substance of the invention, but rather a matter indicating what scope is claimed as a right based on the technical configuration disclosed in the detailed description of the invention. Therefore, it is somewhat inevitable that the scope of patent claims is composed of abstract higher-level concepts that include the technology disclosed in the detailed description of the invention, and if a person skilled in the art can understand the technical configuration, combination, and functional effects belonging to the scope of patent claims through the entire specification, then the scope of patent claims should be considered to be supported by the detailed description of the invention. That is, various modifications may be made to the embodiments presented in the present invention. The embodiments described below are not intended to limit the forms of practice and should be understood to include all modifications, equivalents, and substitutions thereof. If any term described in this specification is to be used with a specific meaning, such meaning may be defined and used, and it should be interpreted accordingly. Unless otherwise defined, all terms used in this specification (including technical and scientific terms) may be used in a meaning that is commonly understood by those skilled in the art to which the present invention pertains. Furthermore, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless explicitly and specifically defined otherwise. In this specification, "and/or" includes each of the mentioned items and all combinations of one or more. Also, the singular form includes the plural form unless specifically stated otherwise in the text. As used in this specification, "comprises" and/or "comprising" do not exclude the presence or addition of one or more other components in addition to the mentioned components. A numerical range indicated by "to" indicates a numerical range that includes the values listed before and after it as a lower and upper limit, respectively. "Approximately" or "about" means a value or numerical range within 20% of the value or numerical range listed after it. In this specification, ordinal modifiers such as 'first component,' 'second component,' and 'first-1 component' are used merely to distinguish one component from another when referring to components. Accordingly, the first component referred to below may be referred to as the second component within the scope of the technical concept of the present invention. For example, what is referred to as the first component in one embodiment may be referred to as the second component in another embodiment. Furthermore,