Determination of the linear mass of the extracted yarns (by yarn type)

The linear mass determination of extracted fibers is a physicochemical method used to determine the mass of a fiber per unit length. Generally expressed in tex (g/km) or denier (g/9000 m), this measurement is essential for identifying the nature, regularity, and mechanical performance of fibers in many industrial applications.

Used for quality control, formulation validation or non-conformity analysis, this service is aimed at a wide range of materials, including technical textiles, reinforced composites, bio-based fibers or packaging materials.

Objectives and benefits of the dosage

Measuring linear mass allows us to:

• Identifying the nature of a yarn or fiber in a complex mixture
• Check the homogeneity and dimensional regularity of the extracted fibers
• Compare different types of reinforcements or textiles in composite materials
• Evaluate a product's conformity to specifications
• Documenting traceability in a recycling or material certification context

This test is particularly useful in the sectors of textile packaging, non-woven manufacturing, polymer recycling or technical automotive textiles.

Analysis methods used

The determination of linear mass relies on techniques such as:

• Gravimetry: precise weighing of a wire measured over a known length
• Optical or digital microscopy: for observing sections, identifying fiber types, or measuring diameter if necessary

The protocols applied follow ISO textile standards, in particular:

• ISO 2060: Determination of linear mass in tex by gravimetric method
• ISO 1144: Alternative method using mechanically harvested fibers

Each analysis is performed in a controlled laboratory environment, on carefully extracted, cleaned and conditioned fibers.

Types of matrices concerned

The dosage can be applied to a wide variety of materials and substrates:

• Raw or processed textile fibers
• Reinforcements for composite materials (glass fibers, aramids, flax, carbon)
• Bio-based or technical yarns (PLA, hemp, bamboo)
• Samples of textile packaging (bags, nets, sleeves)
• Recycled materials including fiber blends
• Fabrics, non-wovens or knitted/draped textiles

For which industrial sectors?

This test is particularly relevant for stakeholders in:

• The technical textile industry
• The manufacture of polymer composites
• The flexible and rigid packaging sector
• Recycling of textile fibers or reinforced plastics
• The development of bio-based materials

The data obtained makes it possible to characterize the extracted fibers, to optimize formulations or to meet the requirements of environmental certifications.

Further analyses recommended

For a more complete characterization of fibers and materials, you can combine this analysis with:

• Measurement of the density of polymer materials
• Polymer characterization (TGA, DSC) – to determine transition or degradation temperatures

Why go through YesWeLab?

Since 2020, YesWeLab has been supporting manufacturers, recyclers, engineering firms, and R&D centers in carrying out their technical and regulatory analyses. Thanks to our digital platform, you benefit from:

• Centralizing all your analytical requests
• Access to a network of laboratories certified ISO 17025, COFRAC, etc.
• Personalized support from our scientific team
• Controlled deadlines and real-time tracking of your samples

Order your linear mass analysis

Do you want to characterize fibers extracted from a complex material, validate a technical textile, or verify the conformity of a product?

Add this analysis to your quote or contact our team to define the protocol adapted to your matrix.