What is the working principle of the yarn twist test?

The yarn twist tester is conducted to determine the twist level or the number of twists per unit length in a yarn sample. The principle of the yarn twist test is based on the observation of the yarn's untwisting behavior.

Here's how the yarn twist tester generally works:

1. Preparation: A section of the yarn sample is selected and securely clamped at one end, while the other end is left loose.

2. Untwisting: The loose end of the yarn is gently released, allowing the twist to untwist in the opposite direction.

3. Twists per unit length observation: As the twist untwists, the yarn will start to coil or curl up on itself. The number of coils observed over a known length of the yarn is then counted. This count represents the number of twists per unit length in the yarn.

4. Calculation: The number of twists counted is typically converted into twists per inch (TPI) or twists per meter (TPM) by dividing the number of twists by the length of the observed section.

The yarn twist tester helps determine the twist level in a yarn, which can influence its strength, appearance, and other properties. It is an important test in textile manufacturing and quality control to ensure yarn consistency and meet specific requirements for different applications.

What is the price of twist tester machine?

The price of a twist tester machine can vary depending on various factors such as brand, model, features, and the supplier or retailer you purchase it from. It is best to check with industrial equipment suppliers, manufacturers, or online retailers that specialize in testing equipment to get the most accurate and up-to-date pricing information.