PL236008B1 - Linear, elastic textile product for textronic applications - Google Patents

Description

Description of the invention

The present invention relates to a linear flexible textile product for textronic applications, a particularly flexible textile tape with conductive elements.

Textronics is an interdisciplinary field that combines knowledge in the field of textiles, electronics and computer science. Textronic products are a combination of textiles with electronic systems in order to obtain monitoring, recording, regulating properties, etc. They are mainly used in the production of intelligent utility products, primarily clothing, to enable measurements, e.g. parameters such as internal or external temperature, heart rate, respiratory rate, blood pressure, skin moisture and the presence of harmful substances. The indications of sensors located in various places of clothing can be transmitted to a monitoring center (e.g. monitoring firefighters during an extinguishing action). An important issue is the proper placement and mounting of electronic components in a textile product, their power supply and signal reception. For this purpose, conductive elements are placed in the clothing, which are used in flat textiles to give them electrically conductive properties.

The simplest example of a flexible tape with conductive elements is a textile tape with strips of copper foil glued to it pointwise, as shown in Japanese patent description JPH07176404.

From the patent description US6381482 a garment material is known in which a layer containing optical fibers is placed on the base layer of the textile product. These wires are inserted into the knitted fabric rectilinearly between the eyelets of the knitting rows.

In both the presented cases, the conductive elements are inextensible, while the knitted or woven fabric is elastic, therefore there is a risk of the conductor tearing off when stretching the textile product.

According to the invention, a linear elastic textile product made by knitting or weaving techniques for textiles has, on at least one of the surfaces or inside the structure of the flat textile product, non-linearly arranged conductive elements associated with the structure of the textile product.

Conductive elements are placed on the surface or inside the structure of a flat textile product in one technological process during knitting or weaving.

The conductive elements during knitting or weaving are arranged on the surface of the textile product or inside its structure according to a wavy or wavy-loop or zigzag or stepped line.

In a textile product, at least one system of main threads is made of elastic yarns.

In a knitted product, conductive threads according to a given pattern are inserted between the links and the shoulders of the eyelets in the warped weaves or form eyelets.

In a woven product, the conductive threads are linked according to a given pattern with the threads of the basic structure by means of selected warp threads. The conductive element is a wire twisted with yarn and additionally braided or only braided with yarn.

Preferably, the conductive threads are introduced in a wavy pattern similar to a sinusoid, the main threads are made of PES 76 dtex textured elastic yarns, and the main weft threads are made of PES 150 dtex textured polyester yarn, and the conductive threads of total with a linear mass of 840 dtex and a maximum linear resistance of 5 Ω / m, they are made of a composite electrically conductive thread containing a copper monofilament, silver-plated, with a diameter of 0.07 mm, twisted with multi-filament polyester yarns.

The linear elastic textile according to the invention has conductive elements permanently bonded to the structure which do not break during use. Such textiles with conductive elements can be incorporated into various types of clothing or technical products, they can also constitute an independent conducting system. Electronic elements, such as sensors, recorders, transmitters, indicators and others, can be placed in any way and in any place on clothing or technical product. The ends of the conductive elements in the linear textile product can be connected to each other and to external power sources. The method according to the invention allows the introduction of a different number of conductive threads spaced at different intervals according to different predetermined non-rectilinear patterns. The designed elastic basic structure of the linear product ensures correct packaging conditions and, in combination with the non-linear arrangement of conductive threads, allows it to be stretched without loss of conductivity.

The subject of the invention is presented in an embodiment in the drawing, which schematically shows a section of a knitted tape with conductive elements connected to the knitted fabric.

As shown, the four conductive threads 3 are placed in a flat fabric, a warped knit made of columns 1 (formed by interconnecting the stitches 2) and a weft 7 laid along the rows. Conductive threads 3 are inserted non-linearly between the links 4 and the mesh arms 5 of the selected columns according to a given pattern. As can be seen, the conductive threads 3 are permanently linked to the structure of the textile product. In this embodiment, the conductive threads 3 are inserted in a wave-like pattern close to a sinusoid. The main threads 6 are made of PES 76 dtex textured elastic yarn and the main threads 7 are made of PES 150 dtex textured polyester yarn. Conductive threads 3, with a total linear weight of 840 dtex and a maximum linear resistance of 5 Ω / m, are made of a composite electroconductive thread containing a copper monofilament, silver-plated, 0.07 mm in diameter, twisted with multi-filament polyester yarns. The basic structure of the product is flexible, and the linear product is designed in such a way that due to the special, non-linear arrangement of the conductive threads 3 and the way of connecting them to the base system, the conductive threads 3 are not exposed to stretching when the product is stretched, so there is no risk of their breakage, and thus hence the loss of conductivity. The product according to the invention allows for any arrangement and mounting of electronic components, which will enable monitoring of various parameters. The tapes can be embedded in various types of clothing and technical textiles or constitute an independent conductive system, while it is possible to create any system of connections. The tape according to the invention can form a pattern while maintaining its electrically conductive properties.

Claims (5)

Patent claims 1.Linear, elastic textile product for textronic applications, knitted or woven, containing conductive elements, characterized in that at least one of the surfaces or inside the structure of the flat textile product, made by knitting or weaving, in one technological process of knitting or weaving, non-linearly located conductive elements (3) related to the structure of the textile product, while the conductive elements (3) during knitting or weaving are arranged on the surface of the textile product or inside its structure according to a wavy or wavy-loop or zigzag or stepped line and in the product in the textile industry, at least one of the main yarns (6) or (7) is made of elastic yarns. 2. A linear elastic textile article according to claim 1. The method of claim 1, characterized in that in the knitted product, conductive threads (3) according to a predetermined pattern are inserted between the links (4) and the arms (5) of the eyelets (2) in the warped weaves or form loops. 3. A linear elastic textile article according to claim 1. The method according to claim 1, characterized in that in the woven product the conductive threads (3) are bonded in a predetermined pattern to the threads of the basic structure by means of selected warp threads. 4. A linear elastic textile article according to claim 1. A method as claimed in claim 1, characterized in that the conductive element is a wire twisted with a yarn and additionally braided or only yarn braided. A linear, elastic textile article according to claim 1. A method according to claim 1, characterized in that the conductive threads (3) are introduced in a wavy pattern similar to a sinusoid, the main threads (6) are made of PES 76 dtex textured elastic yarn and the main weft threads (7) are made of polyester yarn textured PES 150 dtex, while the conductive threads (3), with a total linear mass of 840 dtex and a maximum linear resistance of 5 Ω / m, are made of a composite electroconductive thread, containing copper monofilament, silver-plated, 0.07 mm in diameter, twisted with multifilaments polyester yarns.