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Application Scope

The yarn twist tester is an instrument used to measure the twist of yarns and their related technical indicators.

Applicable Standards

1. GB/T 2543.1: Textiles – Determination of yarn twist – Part 1: Direct counting method.

2. GB/T 2543.2: Textiles – Determination of yarn twist – Part 2: Untwist – retwist method.

3. ISO 2061: Textiles – Determination of yarn twist – Direct counting method.

4. ISO/DIS 17202: Textiles – Determination of yarn twist (Note: This standard may be updated over time. Please confirm the latest version before use).

5. BS 2085: Relevant clauses regarding yarn twist measurement in British standards.

6. ASTM D 1422 and ASTM D 1423: Standards regarding yarn twist measurement issued by the American Society for Testing and Materials (ASTM).

Main Parameters

1. Test range: Applicable to the twist test of various yarns and ply yarns such as cotton, wool, silk, chemical fibers, etc.

2. Twist range: Usually, it can measure a relatively large twist range, such as 1 – 99999.99 twists, to meet the test requirements of different yarns.

3. Yarn tension: There is a set of weights for adjusting yarn tension. The weight configuration may include multiple 0.5 cN, 1 cN, 2 cN, 5 cN, 10 cN, 20 cN, etc. The specific configuration may vary depending on the equipment. The magnitude of the tension can be adjusted according to the type of yarn.

4. Rotational speed: The rotational speed of the chuck or rotating holder can usually be continuously adjusted within a certain range, such as 100 r/min – 2000 r/min or 100 r/min – 1900 r/min, etc., to meet the needs of different test speeds and yarn characteristics.

5. Test length: The test length can usually be set arbitrarily within a certain range, such as 10 – 500 mm, etc., to meet the requirements of different test standards and yarn lengths.

6. Test methods: It may include multiple test methods such as direct counting method, single untwist – retwist method, double untwist – retwist method, triple untwist – retwist method, etc., to meet the requirements of different yarns and test standards.

7. Data output method: Usually has display output and print output functions. The display output can show parameters such as the number of tests, single twist value, twist factor, etc. through a touch screen or LCD display; the print output can realize Chinese or English printed reports by connecting a printer.

8. Power supply: Usually powered by AC220V 50HZ, but the specific voltage and frequency may vary depending on the equipment.