Hybrid tire cord and method for manufacturing the same
AssigneeKolon Industries, Inc.
InventorsOk Wha Jeon, Min Ho Lee
Life of this patent
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Abstract
A hybrid tire cord has more uniform physical properties, and improved strength and fatigue resistance. The hybrid tire cord can easily be manufactured. The hybrid tire cord includes a nylon primarily twisted yarn and an aramid primarily twisted yarn, wherein the nylon primarily twisted yarn and the aramid primarily twisted yarn are secondarily twisted together, and after untwisting of the secondary twisting of the hybrid tire cord having a predetermined length, a length of the aramid primarily twisted yarn is 1.005 to 1.025 times a length of the nylon primarily twisted yarn.
Claims6
A hybrid tire cord comprising:
- a nylon primarily twisted yarn;
- and
- an aramid primarily twisted yarn,
- wherein the nylon primarily twisted yarn and the aramid primarily twisted yarn are secondarily twisted together,
- if the secondary twist of the hybrid tire cord with a predetermined length were untwisted, a length of the aramid primarily twisted yarn would be 1.005 to 1.025 times a length of the nylon primarily twisted yarn,
- the aramid primarily twisted yarn has a 0.1 to 5% lower twist number than a twist number of the nylon primarily twisted yarn, and
- the hybrid tire cord has a merge structure having a partial covering structure.
Dependencies are inferred from the claim text.