The yarn length meter is a special device used in the textile industry to measure the length of yarn. Its main uses and functions include the following aspects:

1. Determine the standard length of yarn

It is used to accurately measure the actual length of a certain weight of yarn, or the weight of a certain length of yarn, and provide basic data for the subsequent calculation of yarn specifications (such as count, linear density).

Application scenarios: yarn production, trade acceptance, laboratory testing, etc.

2. Calculate the linear density (fineness) of yarn

By measuring the weight of a fixed length of yarn (or the length of a fixed weight of yarn), the linear density of the yarn (such as Tex, Denier, metric count, etc.) is calculated by combining the formula.

3. Detect yarn uniformity

By measuring the yarn length and weight in multiple sections, analyze the quality indicators such as yarn thickness uniformity and yarn unevenness.

Related standards: such as international standard ISO 2060, national standard GB/T 4743, etc.

4. Calibrate yarn packages

During the yarn winding process (such as bobbin yarn and hank yarn), ensure that the length of each roll of yarn meets the process requirements to avoid short or over-length problems.

5. Support textile process optimization

Provide accurate yarn data for subsequent processes such as weaving and knitting to help adjust process parameters (such as tension, yarn consumption, etc.).

6. Quality control and trade basis

In yarn trade, as a third-party testing tool, ensure that buyers and sellers agree on the length and specifications of yarn to avoid disputes.

Common types

Manual length gauges: such as the skein length gauge (used to measure the length of skein).

Automatic length gauge: with electronic sensors and software, it can automatically record data and generate reports.

Notes

The ambient temperature and humidity must be controlled during measurement (under standard conditions) to avoid yarn elongation or contraction affecting the results.

The instrument needs to be calibrated regularly to ensure accuracy.

The yarn length gauge is one of the key equipment for quality control in the textile industry, which directly affects yarn pricing and production efficiency.

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