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Chomarat to be awarded for its carbon innovations

News International-French

26 Oct 2012

JEC Americas 2012 - Chomarat wins a JEC Innovation Award in the carbon category thanks to C-PLY Bi-Angle™

The current market demand for weight reduction is related to both environmental and performance requirements worldwide. In response, CHOMARAT has developed C-PLY Bi-Angle™ in partnership with Stanford University (USA) Department of Aeronautics & Astronautics and Hanyang University (Korea) Department of Mechanical Engineering. It consists of an unbalanced thin ply bi-axial carbon reinforcement (non-crimp fabric or NCF) contributing to both weight and composite processing cost reductions.


C-PLY Bi-Angle™ delivers superior mechanical properties offering new opportunities to create unique composite solutions in numerous sectors, including Automotive, Wind Energy Components, Sports & Leisure products, tube and pipe products.  



  • Exceptional strength
  • No matrix cracking
  • Reduced deformation through anisotropy: twisting vs. bending
  • Stronger and tougher laminates (using Thin-Ply)
  • Mid-plane symmetry no longer required due to thin layer
  • Quick and efficient lay-up with reduced waste
  • Weight reduction



The process includes:

  • Spreading: achieving an individual ply weight of 75g/m² requires a skilled proprietary spreading process consisting of laying the yarns flat and straight with uniform tension before spreading them to form a ply that is uniform in fiber dispersion, weight, width and thickness.  

  • Ply forming: performed on a multi-axial machine, but instead of laying down the yarns as in the standard technique, UD plies are placed on top of one another in the desired directions. Obtaining shallow angles (20-30 degrees) required the design of new machine kinematics.  

  • Combining: this final step ties the plies together and consolidates the fabric laminate. It is based on a very fine stitch designed to reduce the impact of foreign materials and the creation of voids to the largest possible extent.  The use of C-PLY™ with an asymmetrical construction (0/Ѳ where Ѳ ranges from 20 to 30 degrees) results in laminate values that are impossible to achieve with unidirectional plies that have quasi-orthotropic angles (0, ± 45, 90 deg.).