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Do you know the common indicators of yarn?

December 24,2023

As one of the important raw materials in the textile industry,  yarn  plays a vital role in textile production. Understanding the common indicators of yarn and the characteristics of high-quality yarn are of great significance for textile production and selection. This article will elaborate on this topic.


Common indicators of yarn

Common indicators of yarn include twist, strength, yarn count, evenness, details, thick places, neps, etc.

Twist refers to the number of twists per unit length of the yarn, which affects the strength, rigidity, flexibility, elasticity, shrinkage and other indicators of the yarn.

Fiber length: The fiber length of yarn is one of the important indicators of yarn quality. Long fibers usually produce yarns with high strength and softness, and are therefore considered one of the important characteristics of high-quality yarns.

Yarn count: Yarn count refers to the quality of yarn per unit length, usually expressed as "count (S)". The higher the yarn count, the greater the quality of the yarn per unit length, so generally speaking, yarns with higher yarn counts are considered to be of better quality.

Flatness: The flatness of the yarn reflects the smoothness of the yarn surface. Generally speaking, yarns with good flatness are easier to put on the machine and are less prone to problems such as yarn breakage during the weaving process.

Strength: The strength of yarn refers to the tensile ability of the yarn under the action of force, and is also one of the important indicators for measuring yarn quality. Typically, stronger yarns are more suitable for producing high-strength textile products.

Hygroscopicity: The hygroscopicity of the yarn is directly related to the comfort of the fabric. Better hygroscopicity can make the fabric more suitable for wearing, and it also has a certain impact on processes such as dyeing and printing.

Color fastness: The color fastness of yarn refers to the ability of the yarn to maintain color stability under conditions such as moisture, sweat, and sunlight. For colored yarns, good color fastness is crucial.

Evenness refers to the uniformity of thickness or weight in short segments of yarn, sliver or roving along the axial direction. The lower the value, the better. Details, thick places, neps, etc. are defects in the yarn that affect the quality of the yarn.


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Characteristics of high-quality yarn

Long fiber: High-quality yarns usually use long fiber raw materials, which can make yarns with high strength and good softness, suitable for the production of high-end textiles.

High flatness: The surface of high-quality yarn has high flatness and is not prone to fluffing and pilling, which is beneficial to subsequent weaving and sewing processes.

High strength: High-quality yarn has high strength, which can ensure the wear resistance and service life of the fabric. It is especially suitable for the production of textiles with high strength requirements.

Moisture absorption and breathability: High-quality yarn has good hygroscopicity and air permeability, making the fabric more comfortable and suitable for the production of summer clothing and other products.

High color fastness: High-quality yarn has good color fastness and can withstand the test of natural conditions such as sun and rain, keeping the color of the fabric stable for a long time.


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Price of high-quality yarn

Yarn quality and price are closely related. The quality of yarn refers to whether various indicators of yarn meet the requirements, such as twist, strength, yarn count, evenness, details, thick places, neps, etc. High-quality yarn should have the characteristics of moderate twist, high strength, fine yarn count, uniform evenness, and no defects such as details, thick spots, and neps. The price of yarn is affected by many factors, such as fiber quality, spinning technology, market supply and demand, etc. Generally speaking, the price of yarn with good quality is relatively high, while the price of yarn with poor quality is relatively low.

Yarn selection

When selecting yarn, comprehensive considerations need to be made based on specific textile production needs and product characteristics. First of all, factors such as the purpose, performance requirements, and fabric structure of the textiles to be produced should be clarified, and then the selection should be made based on the common indicators of yarns and the characteristics of high-quality yarns.

Fiber raw materials: Choose appropriate fiber raw materials according to the requirements of the textile. For example, cotton yarn is suitable for making comfortable and breathable summer clothing, while polyester yarn is suitable for making wear-resistant sportswear.

Thread count and flatness: Select the appropriate thread count and flatness according to the fabric density and textile structure to ensure the production of textiles that meet the requirements.

Strength and hygroscopicity: Select yarns with appropriate strength and hygroscopicity according to the use environment and functional requirements of the textile to ensure the durability and comfort of the fabric.

Color fastness: For colored yarns, special attention needs to be paid to the color fastness to avoid dyeing problems and color loss during use caused by poor color fastness.

Taking the above factors into consideration, suitable yarn types and specifications can be selected to meet the requirements of textile production and produce high-quality fabric products.

Through reasonable planning and careful control of the yarn selection process, the quality and competitiveness of textiles can be effectively improved to meet the needs of the market and consumers.



As a raw material for textile production, the quality of yarn is directly related to the quality and performance of the final textile. By understanding the common indicators of yarn and the characteristics of high-quality yarn, manufacturers and consumers can be helped to better select and produce yarn, thereby improving the overall quality and competitiveness of textiles. I hope this article can be helpful to you, thank you for reading!

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