Chafer

　

item parameter unit data
70# 85# 110# 2×2 3×3 4×4 5×5
warp yarn counts s 21s/2 21s/2 21s/3 21s/2 21s/3 21s/4 21s/5
weft yarn counts s 21s/1 21s/2 21s/3 21s/2 21s/3 21s/4 21s/5
breadth cm 91.5±1.5 91.5±1.5 91.5±1.5 91.5±1.5 91.5±1.5 91.5±1.5 91.5±1.5
warp density piece/10cm 128±3 128±3 120±3 140±4 130±4 60 58
weft density piece/10cm 120±3 120±3 118±3 136±3 130±2 52 48
warp tensile strength at break N(5×20)cm ≥700 ≥850 ≥1100 ≥850 ≥1100 ≥0.45 ≥0.643
weft tensile strength at break N(5×20)cm ≥350 ≥850 ≥1050 ≥750 ≥1050 ≥0.57 ≥0.623
warp elongation rate at break % 15±5 15±5 25±5 20±5 21±3 23±5 23±5
weft elongation rate at break % 16±5 20±5 25±5 18±5 19±3 24±5 24±5
thickness mm 0.4±0.05 0.4±0.05 0.5±0.05 0.45±0.05 0.55±0.05 0.55±0.05 0.55±0.05
glue content % 5±2 5%±2% 5±2 5±1.5 5±1.5 0.86±0.02
kg/m2		 0.86±0.02
kg/m2
moisture regain rate % 2 2 3 3-5 3-5 3-5 3-5
roll length m irregular size irregular size irregular size irregular size irregular size irregular size irregular size

1、range: The standard is suitable for quality appraisal of 1260D/1×1260D/11 polyamide dipped chafer fabric.

2、quoted standard: Weihai Triangle Tyres Factory's corporate standard QB/WH1999-007-90 polyamide 6 dipped chafer fabric.

3、technical index:

item parameter data
polyamide 6 dipped chafer fabric
warp strength at break
KN/15piece		 ≥77
weft strength at break
KN/19piece		 ≥77
warp elongation rate at break
%		 25±7
weft elongation rate at break
%		 30±7
warp density
piece/10cm		 54±2
weft density
piece/10cm		 60±2
thickness
mm		 0.76±0.05
dry hot shrink rate
%		 3
glue content
%		 10±4
peeling strength
N/cm		 ≥148.8
degree of twist 
twist/10cm		 19±2.5

 
 

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