How to Measure the Thickness and Width of The Yarn?

Views:344     Author:Site Editor     Publish Time: 2020-08-11      Origin:Site

Yarn has thickness and width, so in general, how do we measure the thickness and width of nylon yarns?



1. Definition Of Yarn Diameter And Width


Thickness (or diameter) is one of the basic physical properties of textile materials. In some industrial applications, the thickness may need to be strictly controlled within the specified range. The bulkiness and warmth of textile materials are usually estimated based on their thickness values. Thickness can also be used to measure certain performance characteristics of nylon filament yarn, such as before and after wear and shrinkage.


Not to be confused with thickness, the width of recycled nylon yarn is also a very important factor. The width of the material helps determine how much yarn will be covered when the material is placed flat on another surface. The width is an important factor in determining the coverage of the yarn in the bundled cable, the pitch required for the braided or helically wound hose, or the aperture and fabric density of the computer woven fabric. These methods cover the determination of the thickness and width of natural or colored single or stranded ribbons, monofilaments, multifilaments, Nylon6 DTY and spun yarns.



2. Diameter Measurement


Required tools:

Digital thickness gauge with 10mm diameter presser foot



- Cut four short 3-inch long material samples and place them parallel to each other on the presser foot. The materials should be closely spaced to minimize the compression and spreading of the fibers, resulting in reduced measurement accuracy.

- Place the feeler gauge/presser foot on the material to be measured.

- Raise and lower the presser foot 3 times on the sample and record the measured value.

- Average the results of 3 readings



3. Width Measurement


Required tools: Digital caliper


Requirement: The material will be measured in a pre-tensioned state to determine the exact width.



- Determine the pre-stretch weight to be used-usually 0.05 grams per denier. For example for 1000 denier = 1000 × 0.05 = 50g;

- Cut three 18-inch material samples to be tested.

- Put one end of the material in the fixing clip and the other end on the roller or fixing rod.

- Ensure that the tensioning material is suspended in the air by attaching the determined pre-tensioned weight to the end roll.

- Zero the vernier caliper and carefully set the fixed end on the edge of the material, while carefully moving the adjustable end to the other edge of the material,

- Record 3 measurements at least 1.0 inches apart.

- Repeat steps 3-6 for the remaining 2 samples, and take the average of the 3 samples.


You can also estimate yarn diameter based on fiber type and denier, but the above tools and steps will provide you with the most accurate yarn diameter and yarn measurement methods.


Jiayi specializes in the production of various functional nylon filaments, sustainable nylon yarns, etc. For more information about nylon yarns, please contact us.





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