Yarn Loop Length Tester

Produced by: Standard Groups

All supplier products

Compliance Standards

FZ/T 70001-2003. FZ/T 71004-2003

Determines loop length of various yarns and knitted loops. Verifies compliance of different yarn densities (counts) with standard loop lengths.

Uniformly spread the twisted yarn under specified tension. Measure loop length compliance through pointer indications.

1. Column fixed to base supports upper sleeve, scale, and serves as lower sleeve guide

2. Rollers installed on both sleeves for tested yarn positioning

3. Upper sleeve position adjustable via vertical axis for different loop lengths

4. Select appropriate weights according to yarn specifications to apply tension through lever mechanism

1. Attach moisture-adjusted sample to upper and lower knife-shaped clamps

2. Apply specified weights (including 1.4kg lower clamp self-weight):

- 50g yarn: 2.4kg total

- 62.5g yarn: 3.0kg total

- 125g yarn: 6.0kg total

3. Record scale reading within 30 seconds after stabilization (precision 0.1cm)

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