Fiber Materials / Alfa Chemistry
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Custom Profiled Fiber

Profiled fibers are chemical fibers with a special cross-sectional (non-circular) shape. Alfa Chemistry provides design and customization services for profiled fibers to improve fiber performance. Our fiber development department has a strong technical base and a team of well-trained and experienced experts.

Optional Service Items

By imitating the structural characteristics of natural fibers, the cross-sections of profiled fibers are made into special shapes, instead of being circular or nearly circular like general chemical fibers, in order to obtain some performance improvements. Combining rich experience in R&D and production with advanced technical expertise, Alfa Chemistry is committed to providing customers with satisfactory customized development services for profiled fibers, as well as accurate and detailed analysis and test results.

  • Optional Cross-Sectional Shape
    The cross-sectional shape is the most important parameter in the profiled fiber customization service. We can provide you with a variety of optional cross-sectional shapes, including but not limited to triangular, pentagonal, polygonal, trilobal, multilobal, cross, dumbbell, "L", "H", "Y" shape and hollow shape, etc. Different cross-sectional shapes will bring different performance changes to the fibers. For example, triangular fibers have shiny properties, hollow fibers have better bulkiness, and dumbbell-shaped fibers have good elasticity and moisture conductivity.

Several typical profiled fibersSeveral typical profiled fibers [1]

  • Optional Fiber Type
    Our customized profiled fibers can be spun into monofilament, multifilament, staple fiber, fiber bundles, etc. according to customer requirements.
  • Profiled Fiber Analysis Service
    Characterizing the cross-sectional shape of shaped fibers is an important part of quality control and performance design. In addition to conventional microscopy techniques, our technical team can perform shape analysis and quantitative characterization of fiber cross-sections with the help of image analysis techniques.

Boundary fluctuation curves of profiled fiber cross sections.Boundary fluctuation curves of profiled fiber cross sections. [2]

Our Technology

Profiled fibers are usually manufactured by special-shaped spinneret holes. Besides, our other manufacturing technologies include melt bonding, separation of composite filaments, post-processing deformation, composite profiled filaments, center blowing, and fiber surface deformation, etc.


Compared with ordinary round fibers, profiled fibers often show advantages in the following aspects:

  • Gloss
  • Bulkiness
  • Breathability
  • Anti-pilling
  • Abrasion resistance
  • Water absorption
  • Dyeability
  • Porosity
  • Specific surface area



Based on the above improved properties, in addition to the application in the field of clothing, the special-shaped fibers also show potential in the fields of water treatment, concentration separation, air purification and tissue engineering. For example, studies have shown that fiber cross-sectional shape affects the material's specific surface area, wicking effect, protein adsorption and other properties, thereby regulating cell behavior and affecting tissue regeneration. Tissue engineering scaffolds can be constructed using grooved cross-section wicking fibers that help enhance cell proliferation. [3]

Cooperate With Us

We are confident that, by working with us, you will be satisfied with our expertise in the design and characterization of profiled fibers. We pride ourselves on our strengths in:

  • Experienced testing and research team
  • Meet customer needs at all stages
  • Efficient and cost-effective services
  • Complete and advanced infrastructure


  1. Yongjie Jiao, et al. Biomater. Sci., 2020,8, 3574-3600.
  2. Zhaoli Wang, et al. International Journal of Clothing Science and Technology, 2011, 23, 131-141.
  3. Jordon Gilmore, et al. Journal of Biomedical Materials Research Part B-Applied Biomaterials, 2019, 107, 306-313.

Our products and services are for research use only.