A reinforcing yarn and an abrasion resistant knitted fabric made therewith are disclosed. The reinforcing yarn is made by pairing one end of a "Z"-twist textured yarn together with one end of an "S"-twist textured yarn to yield an S/Z yarn pair. The S/Z yarn pair is then axially twisted in a first d
A reinforcing yarn and an abrasion resistant knitted fabric made therewith are disclosed. The reinforcing yarn is made by pairing one end of a "Z"-twist textured yarn together with one end of an "S"-twist textured yarn to yield an S/Z yarn pair. The S/Z yarn pair is then axially twisted in a first direction and stretched before being helically wrapped in the opposite direction with a duplicate S/Z yarn pair to yield a 4-end composite reinforcing yarn. This reinforcing yarn is knit in plaited relationship to the body yarn of a fabric to produce a fabric with exceptional abrasion resistance.
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1. A reinforced knitted fabric knitted of, and a reinforcing yarn a body yarn, said reinforcing yarn comprised of two pairs of yarn ends, the first pair of yarn ends comprising a first end of a textured yarn having between approximately 1 and 6 turns of S-twist per inch and a second end of textured
1. A reinforced knitted fabric knitted of, and a reinforcing yarn a body yarn, said reinforcing yarn comprised of two pairs of yarn ends, the first pair of yarn ends comprising a first end of a textured yarn having between approximately 1 and 6 turns of S-twist per inch and a second end of textured yarn having between approximately 1 and 6 turns of Z-twist per inch, said first pair of yarn ends being mechanically twisted in a first direction with between approximately 3 and 10 turns per inch, the second pair of yarn ends comprising a third end of textured yarn having between approximately 1 and 6 turns of S-twist per inch and a fourth end of textured yarn having between approximately 1 and 6 turns of Z-twist per inch, said second pair of yarn ends being helically wrapped around said first pair of yarn ends in a second direction which is opposite to the direction in which said first pair of yarn ends was mechanically twisted and covering said first pair of yarn ends with about 5 to about 25 wraps per inch of said second pair of yarn ends when said reinforcing yarn is in an unstretched condition and said body yarn and said reinforcing yarn knit in successive courses in plaited relationship in at least every sixth course. 2. A reinforced knitted fabric according to claim 1, wherein each of said first, second, third and fourth ends of textured yarn in said reinforcing yarn are comprised of plied yarns in 10 to 200 denier size range, and said plied yarns are comprised of fibers selected from the group of nylon, polyester and para-aramid. 3. A reinforced knitted fabric according to claim 1, wherein each of said first, second, third and fourth ends of textured yarn in said reinforcing yarn are comprised of plied yarns of nylon in the 20 and 100 denier size range. 4. A reinforced knitted fabric according to claim 1, wherein each of said first, second, third and fourth ends of textured yarn in said reinforcing yarn are comprised of plied yarns in about the 20 to 100 denier size range, and wherein each of said first, second, third and fourth ends of textured yarn have between approximately 1 and 4 twists per inch, and said first pair of yarn ends is mechanically twisted with between approximately 4 and 7 turns per inch. 5. A reinforced knitted fabric according to claim 4, wherein said first, second, third and fourth ends of textured yarn in said reinforcing yarn are comprised of plied stretch nylon, and wherein said second pair of yarn ends is helically wrapped around said first pair of yarn ends to provide about 8 to about 18 wraps per inch covering said first pair of yarn ends when said reinforcing yarn is in an unstretched condition. 6. The reinforced knitted fabric according to claim 4, wherein said second pair of yarn ends in said reinforcing yarn is helically wrapped around said first pair of yarn ends with a number of wraps per inch providing a torque which balances the torque imparted to said reinforcing yarn by the twist in said first pair of yarn ends, whereby the torques introduced by said first and second pairs of yarn ends are substantially balanced and aid reinforcing yarn is a non-torque yarn. 7. The reinforced knitted fabric according to claim 5, wherein said second pair of yarn ends in said reinforcing yarn is helically wrapped around said first pair of yarn ends with a number of wraps per inch providing a torque which balances the torque imparted to said reinforcing yarn by the twist in said first pair of yarn ends, whereby the torques introduced by said first and second pairs of yarn ends are substantially balanced and said reinforcing yarn is a non-torque yarn. 8. The reinforced knitted fabric according to claim 2, wherein said reinforcing yarn is plaited on the body yarn in every course thereof. 9. The reinforced knitted fabric according to claim 5, wherein said reinforcing yarn is plaited on the body yarn in every course thereof. 10. The reinforced knitted fabric according to claim 6, wherein said reinforcing yarn is plaited on the body yarn in every course thereof. 11. The reinforced knitted fabric according to claim 8, wherein said reinforcing yarn is plaited on opposite sides of said body yarn in consecutive courses, whereby said reinforcing yarn is substantially the outside yarn on the front side of the fabric in one course and is substantially the outside yarn on the back side of the fabric in the next succeeding course. 12. The reinforced knitted fabric according to claim 9, wherein said reinforcing yarn is plaited on opposite sides of said body yarn in consecutive courses, whereby said reinforcing yarn is substantially the outside yarn on the front side of the fabric in one course and is substantially the outside yarn on the back side of the fabric in the next succeeding course. 13. The reinforced knitted fabric according to claim 10, wherein said reinforcing yarn is plaited on opposite sides of said body yarn in consecutive courses, whereby said reinforcing yarn is substantially the outside yarn on the front side of the fabric in one course and is substantially the outside yarn on the back side of the fabric in the next succeeding course. 14. The reinforced knitted fabric according to claim 2, wherein said reinforcing yarn is plaited on the body yarn in alternating courses thereof. 15. The reinforced knitted fabric according to claim 5, wherein said reinforcing yarn is plaited on the body yarn in alternating courses thereof. 16. The reinforced knitted fabric according to claim 6, wherein said reinforcing yarn is plaited on the body yarn in alternating courses thereof. 17. An article of clothing comprised of knitted fabric, wherein at least a portion of said fabric is the reinforced knitted fabric of claim 2. 18. An article of clothing comprised of knitted fabric, wherein at least a portion of said fabric is the reinforced knitted fabric of claim 5. 19. An article of clothing comprised of knitted fabric, wherein at least a portion of said fabric is the reinforced knitted fabric of claim 6. 20. An article of clothing comprised of knitted fabric, wherein at least a portion of said fabric is the reinforced knitted fabric of claim 12. 21. A sock comprised of knitted fabric, wherein at least a portion of said knitted fabric is the reinforced knitted fabric according to claim 2. 22. A sock comprised of knitted fabric, wherein at least a portion of said knitted fabric is the reinforced knitted fabric of claim 9. 23. A sock comprised of toe and heel sections made of knitted fabric, wherein the knitted fabric is the reinforced knitted fabric of claim 11. 24. A sock comprised of toe and heel sections made of knitted fabric, wherein the knitted fabric is the reinforced knitted fabric of claim 15.
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이 특허에 인용된 특허 (10)
Strachan Donald Rittler (Martinsville VA), Composite elastic yarns and process for producing them.
Cassidy ; Sr. Edward L. (Burlington NC) Cothran William B. (Burlington NC) Safrit Sam C. (Pfafftown NC), Hosiery article with a reinforced toe with varying density.
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