Electrically conductive composite knitting yarn having excellent durability of electrical conductivity, method of manufacturing the same, and knitting goods including the same

Abstract

An electrically conductive composite knitting yarn includes a core yarn and a plurality of stainless steel wing yarns that are bonded to the core yarn and extend on a side of the core yarn; each of the wing yarns is bonded to the core yarn by continuously forming twist portions at two loops adjacent to each other from among a plurality of loops formed on the core yarn in a longitudinal length of the core yarn. Alignments of the yarns, forming of yarns in groups, and a method of manufacturing the electrically conductive composite knitting yarn also are disclosed.

1 . An electrically conductive composite knitting yarn comprising:
 a core yarn; and   a plurality of wing yarns that are bonded to the core yarn and extend on a side of the core yarn;   wherein each of the plurality of wing yarns is bonded to the core yarn by continuously forming twist portions at two loops adjacent to each other from among a plurality of loops formed on the core yarn in a longitudinal length of the core yarn, wherein the wing yarns comprise a stainless steel yarn.   
     
     
         2 . The electrically conductive composite knitting yarn of  claim 1 , wherein as a plurality of the core yarns aligned side by side vertically at a lower part of a composite knitting yarn maker proceed upward toward a twist former while continuously forming loops in a longitudinal direction of the core yarns and as a plurality of yarns for forming wing yarns proceed downward from an upper part of the composite knitting yarn maker toward the twist former, the electrically conductive composite knitting yarn is manufactured by forming the twist portions at the loops of the core yarn which enters into the twist former and then cutting a middle part of the yarns for forming wing yarns between two core yarns,
 wherein two of the yarns for forming wing yarns and two of the core yarns form a group so that each of the yarns for forming wing yarns is inserted into the twist former and forms two twist portions at two continuous loops, which are first met by the yarn for forming wing yarns, from among the loops continuously formed on each of the core yarns, and then each of the yarns for forming wing yarns proceeds to the core yarn on the left or right side to continuously form two twist portions at the two loops of the core yarn on the left or right side after skipping the first two loops of the core yarn on the left or right side at a time, wherein the electrically conductive composite knitting yarn is manufactured by repeating the above process, and thus, the yarn for forming wing yarns proceeds back and forth in a zigzag manner between two lines of the core yarns to form the twist portions at the loops of all of the core yarn, and then cutting a middle part of the yarn for forming wing yarns crossing between the two lines of the core yarns in a longitudinal direction, wherein the yarn for forming wing yarns comprise a stainless steel yarn.   
     
     
         3 . The electrically conductive composite knitting yarn of  claim 1 , wherein
 as a plurality of the core yarns aligned side by side vertically at a lower part of a composite knitting yarn maker proceed upward toward a twist former while continuously forming loops in a longitudinal direction of the core yarns and as a plurality of yarns for forming wing yarns proceed downward from an upper part of the composite knitting yarn maker toward the twist former, the electrically conductive composite knitting yarn is manufactured by forming the twist portions at the loops of the core yarn which enters into the twist former and then cutting a middle part of the yarns for forming wing yarns between two core yarns,   wherein three of the yarns for forming wing yarns and four of the core yarns form a group so that each of the yarns for forming wing yarns is inserted into the twist former and forms two twist portions at two continuous loops, which are first met by the yarn for forming wing yarns, from among the loops continuously formed on each of the core yarns, and then each of the yarns for forming wing yarns proceeds to the core yarn on the right side to continuously form two twist portions at the two loops of the core yarn on the right side after skipping the first two loops of the core yarn on the right side at a time, and then each of the yarns for forming wing yarns proceeds to the core yarn on the left side to continuously form two twist portions at the two loops of the core yarn on the left side after skipping the first two loops of the core yarn on the left side at a time, wherein the electrically conductive composite knitting yarn is manufactured by repeating the above process, and thus, the yarn for forming wing yarns eventually proceeds back and forth in a zigzag manner between two lines of the core yarns of the four of the core yarns to form the twist portions at the loops of all of the core yarn, and then cutting a middle part of the yarn for forming wing yarns crossing between the two lines of the core yarns in a longitudinal direction, wherein the yarn for forming wing yarns comprise a stainless steel yarn.   
     
     
         4 . The electrically conductive composite knitting yarn of  claim 1 , wherein the yarn for forming the wing yarns is a mixture of a steel yarn and at least one type of fiber yarn selected from the group consisting of cotton yarn, wool yarn, polyester yarn, polyamide yarn, acrylic yarn and acetate yarn. 
     
     
         5 . A method of manufacturing an electrically conductive composite knitting yarn, the method comprising:
 entering a plurality of core yarns aligned side by side vertically at a lower part of a composite knitting yarn maker by proceeding them upward toward a twist former while continuously forming loops in a longitudinal direction of the core yarns and a plurality of yarns for forming wing yarns by proceeding them downward from an upper part of the composite knitting yarn maker toward the twist former;   inserting each of two of the yarns for forming wing yarns into a first loop, which is first met by each of two of the yarn for forming wing yarns from among the loops continuously formed on each of two of the core yarns, and forming a first twist portion, wherein the two of the yarns for forming wing yarns and the two of the core yarns act as a group;   inserting each of the yarns for forming wing yarns that have formed the first twist portion into a second loop formed next to the first loop in a longitudinal direction on each of the core yarns and forming a second twist portion;   proceeding each of the yarns for forming wing yarns that have formed the second twist portion to the core yarn on the left or right side, inserting it into a third loop formed in each of the core yarns on the left or right side and forming a third twist portion;   inserting each of the yarns for forming wing yarns that have formed the third twist portion into a fourth loop formed next to the third loop in a longitudinal direction on each of the core yarns on the left or right side and forming a fourth twist portion;   continuing the two of the yarns for forming wing yarns acting as a group to repeat the above steps crossing each other while proceeding back and forth in a zigzag manner between the two of the core yarns such that each of the yarns for forming wing yarns is inserted into the twist former and forms two twist portions at two continuous loops, and then each of the yarns for forming wing yarns proceeds to the core yarn on the left or right side to continuously form two twist portions at the two loops of the core yarn on the left or right side after skipping the first two loops of the core yarn on the left or right side at a time; and   cutting a middle part of the yarns for forming wing yarns that are crossing each other between the two lines of the core yarns in a longitudinal direction,   wherein the yarns for forming wing yarns comprise a stainless steel yarn.   
     
     
         6 . A method of manufacturing an electrically conductive composite knitting yarn, the method comprising:
 entering a plurality of core yarns aligned side by side vertically at a lower part of a composite knitting yarn maker by proceeding them upward toward a twist former while continuously forming loops in a longitudinal direction of the core yarns and a plurality of yarns for forming wing yarns by proceeding them downward from an upper part of the composite knitting yarn maker toward the twist former;   inserting each of three of the yarns for forming wing yarns into a first loop, which is first met by each of three of the yarn for forming wing yarns from among the loops continuously formed on each of four of the core yarns, and forming a first twist portion, wherein the three of the yarns for forming wing yarns and the four of the core yarns act as a group;   inserting each of the three of the yarns for forming wing yarns that have formed the first twist portion into a second loop formed next to the first loop in a longitudinal direction on each of the four of the core yarns and forming a second twist portion;   proceeding each of the three of the yarns for forming wing yarns that have formed the second twist portion to each of the core yarns on the right side, inserting it into a third loop formed in each of the core yarns on right side and forming a third twist portion;   inserting each of the three of the yarns for forming wing yarns that have formed the third twist portion into a fourth loop formed next to the third loop in a longitudinal direction on each of the core yarns on the right side and forming a fourth twist portion;   proceeding each of the three of the yarns for forming wing yarns that have formed the fourth twist portion to each of the core yarns on the left side, inserting it into a fifth loop formed in each of the core yarns on left side and forming a fifth twist portion;   inserting each of the three of the yarns for forming wing yarns that have formed the fifth twist portion into a sixth loop formed next to the fifth loop in a longitudinal direction on each of the core yarns on the left side and forming a sixth twist portion;   continuing each of the yarns for forming wing yarns to repeat the above steps proceeding back and forth in a zigzag manner between the two of the core yarns such that each of the yarns for forming wing yarns is inserted into the twist former and forms two twist portions at two continuous loops, and then each of the yarns for forming wing yarns proceeds to the core yarn on the left or right side to continuously form two twist portions at the two loops of the core yarn on the left or right side after skipping the first two loops of the core yarn on the left or right side at a time; and   cutting a middle part of the yarns for forming wing yarns located between the two lines of the core yarns in a longitudinal direction,   wherein the yarns for forming wing yarns comprise a stainless steel yarn.   
     
     
         7 . The method of  claim 4 , wherein the yarn for forming the wing yarns is a mixture of a steel yarn and at least one type of fiber yarn selected from the group consisting of cotton yarn, wool yarn, polyester yarn, polyamide yarn, acrylic yarn and acetate yarn. 
     
     
         8 . Knitting goods comprising the electrically conductive composite knitting yarn of  claim 1 . 
     
     
         9 . The knitting goods of  claim 8 , wherein the knitting goods are gloves.