Grade B Spandex In Personal Care
① Spandex can be elongated 4-7 times and hark back after disengagement.
② Every yarn is made of several spun yarn which is uniform tension.
③ Resilient force of every Dtex is 3 times than elastics.
④ The stess and strain curves is more smooth.Keeping smooth resiliency force in the effective area.
⑤ Wide elongation area.The uniform design specification of elastic force is from 2.0-4.0 times elongation.
⑥ About 3kgs per roll.
Specification
|
About testing item |
840D |
|
Broken prolongation(%) |
500 |
|
Broken intensity(CN) |
610 |
|
Plastic distortation(%) |
<6 |
|
Elastic recovery rate(% ) |
>94 |
|
Specific gravity |
0.9-1.2 |
|
Intenerate point(°C) |
175-200 |
|
Oiliness (% ) |
<3 |
|
Equivalent does (m/kg) |
about 14900 |
