Elastic Weft Yarn
This product is a two-component coating structure, with nylon 66 silk as the inner core. The outer layer is covered with long-staple cotton and twisted. Such a structure can increase the initial modulus during weaving to prevent the extra elongation of nylon 66 filaments; the second is to increase friction to prevent nylon 66 from slipping and ensure the stability of the forming of the tire cord fabric. One of the tire cord weft materials for automobiles, suitable for high-quality radial tire cord varieties, with good tensile stability after dipping. During the tire molding and vulcanization process, the cord fabric can be expanded evenly.
Product parameters
|
标准 STANDARD / 品种 TYPE
|
18s
328dtex
|
20s
295dtex
|
HIGH STRENGTH
20s
295dtex
|
22s
270dtex
|
26s
228dtex
|
|
线密度 LINE DENSITY (S)
|
18±1
|
20±1
|
20±1
|
22±1
|
26±1
|
|
平均断裂强力 AVG BREAK STRENGTH (CN)
|
≥290
|
≥350
|
≥380
|
≥270
|
≥200
|
|
断裂强力变异系数 BREAK STRENGTH CV(%)
|
≤8
|
≤8
|
≤8
|
≤8
|
≤8
|
|
平均断裂伸长率 AVG ELONGATION @ BREAK (%)
|
≥260
|
≥250
|
≥250
|
≥250
|
≥230
|
|
断裂伸长率变异系数 ELONGATION @ BREAK CV (%)
|
≤8
|
≤8
|
≤8
|
≤8
|
≤8
|
|
240°C 热处理 4MIN 后断裂强力
BREAK STRENGTH@240℃X 4 MIN (CN)
|
≥240
|
≥300
|
≥320
|
≥220
|
≥180
|
|
240°C 热处理 4MIN 后断裂伸长率
ELONGATION @ BREAK @240℃X 4 MIN (%)
|
≥200
|
≥210
|
≥200
|
≥200
|
≥180
|
|
比例 PA66/棉 N66/Cotton (%)
|
70/30±3
|
75/25±3
|
75/25±3
|
70/30±3
|
65/35±3
|
