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  • Writer's pictureSuzhou Zanying

Textile Fiber Analysis — Microscope Observation

Updated: Sep 9, 2023

Different fibers have different appearance shapes as well as different cross-sectional and longitudinal shapes.Microscopic observation is to use ordinary biological microscope or electron microscope to observe the longitudinal and cross-sectional morphology of fibers. In order to identify the type of unknown fiber.

Microscope
Microscope

Cotton: The cross section shape has a middle cavity and is irregularly circular. The longitudinal shape is flat and ribbon-shaped, with a slight natural twist.

Cotton Under Microscope
Cotton Under Microscope

Linen: The cross section shape is polygonal hollow tube. Longitudinal shape with lobes.

Linen Under Microscope
Linen Under Microscope

Silk: The cross section shape is triangular, and the corners are rounded. The longitudinal shape is transparent and smooth, with longitudinal stripes.

Silk Under Microscope
Silk Under Microscope

Wool: The cross section shape is round or nearly round. The longitudinal morphology is rough, scaly, needle-like, and naturally curly.

Wool Under Microscope
Wool Under Microscope

Viscose: There are many cross-sectional shapes. There are round, oval, zigzag, leaf, bean and so on. The longitudinal morphology has a smooth surface with clear striations.

Viscose Under Microscope
Viscose Under Microscope

Polyester: The cross-sectional shape is circular or approximately circular and various special-shaped cross-sections. The longitudinal surface is smooth, and some have unclear long stripes.

Polyester cross-sections in different shapes
Polyester Cross-sections In Different Shapes
Polyester Under Microscope
Polyester Under Microscope

Nylon: The cross section shape is round or trilobal. The longitudinal morphology has a smooth surface with small dots.

Nylon Under Microscope
Nylon Under Microscope

Acrylic: The cross section shape is round, dumbbell-shaped or leaf-shaped. The longitudinal morphology is smooth with striations.

Acrylic Under Microscope
Acrylic Under Microscope

Vinylon: The cross section shape is waist-shaped or dumbbell-shaped. The longitudinal form is elongated, with grooves on the longitudinal surface.

Vinylon Under Microscope
Vinylon Under Microscope

Microscopic observation is suitable for natural fibers and regenerated fibers with obvious morphological characteristics. But with the development of chemical fiber industry. Continuous development and improvement of imitation natural fiber and easy-shaped fiber. Affected the accuracy of the identification results of this method.It needs to be considered comprehensively in combination with other identification methods.

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