From the Sector

CHOMARAT, the composite reinforcement specialist group, is launching its multiaxial glass NCF for thermoplastic composites. The unique patented stitching yarn used can withstand processing temperatures to 400°C, making it an innovative industrial solution for thermoplastic composites and an alternative to the woven reinforcements used especially in the automotive sector. For the first time, CHOMARAT is also exhibiting a unidirectional carbon NCF reinforcement that is adapted to the productivity and performance requirements in the wind energy sector.

AN INNOVATIVE INDUSTRIAL SOLUTION TO REINFORCE AUTOMOTIVE THERMOPLASTICS
Thanks to a unique patented stitching yarn, the glass NCF reinforcement (G-PLY™) developed by CHOMARAT offers new possibilities in thermoplastic RTM and organosheet processes. “This is an especially innovative solution, utilizing stitching yarns that are compatible with processing temperatures to 400°C. These multiaxials improve the performance and provide a lot of construction freedom in terms of fibre orientation. These new design possibilities contribute to structural optimization. The quest for more lightweight vehicles, shorter cycle times and lower cost is a major issue for all builders,” explains CHOMARAT Automotive Market Manager Francisco De Oliveira.
This new heat-stable G-PLY™ reinforcement can withstand very high processing temperatures without deformation and provides optimal mechanical performance.

A CARBON UD TO REINFORCE EXTRA-THICK WIND TURBINE STRUCTURES
For the first time, CHOMARAT is exhibiting an infusion-moulded laminate made with 150 plies of its new unidirectional carbon C-PLY™. This 600g/m², high-permeability NCF can be used to create extra-thick structures, in particular the wind-turbine blade stiffeners, or spar caps. “Cost reduction is the challenge in the wind energy industry. Increasing the blade length by incorporating carbon stiffeners increases power, and so it also lowers the cost of the energy,” says CHOMARAT Wind Energy Market Manager Raphaël PLEYNET. The carbon UD developed by CHOMARAT provides a solution to achieve the goal to optimize the weight/power ratio. The UD’s high permeability reduces cycle times and lowers the blade production costs.

Professor Sung Ha from the University of Hanyang will give a conference on composite challenges in the wind energy sector at 11:30 am on Wednesday, 7 March 2018 at JEC World.
Established in 1898, CHOMARAT is an international industrial textile group, involved in three businesses: Composites Reinforcements, Construction Reinforcements, Coatings & Films–Textiles. The privately held company operates in France, Tunisia, the United States and China to service its global customers.
CHOMARAT leads a strong innovation strategy, rising to challenges, developing materials for the future. Hence, the Group invests in new technologies and enters into collaborative research programs with universities and technical centers worldwide.
CHOMARAT offers strong technical know-how and mastery of complex technologies in fields ranging from automotive, aerospace, sports, energy, marine, construction, and also in markets requiring creativity and expertise, like luxury goods.

Bobingen - On the 4th October 2017 a new brand was introduced at Trevira: Trevira SINFINECO®. This label may be carried by all textiles that contain sustainable Trevira products. Sustainable, innovative, high-value and responsible – these are the values the new brand stands for.

As an industrial enterprise, Trevira is conscious of its special responsibility for an intact environment and has long advocated the recycling of valuable raw materials and waste products. Trevira CEO Klaus Holz: “We at Trevira wish to preserve the environment and at the same time work to create value. These are the criteria of our sustainability concept.“

Creation of the new brand is therefore only a logical step, one that enables customers to label their sustainable Trevira products as such. Trevira is known for the high quality of its products. In every way recycled products are as good as the original materials in terms of quality and performance.

Two vital elements in Pre-Consumer Recycling and an important concept in Post-Consumer Recycling form part of the sustainability strategy of Trevira to conserve resources and maintain value. :

In the area of Pre-Consumer Recycling, on the one hand, residual materials resulting from the manufacture of polyester fibres and filaments in Bobingen and Guben, dependent on the manufacturing step, are processed in the agglomeration plant and restored to become serviceable primary material. The recyclates are then fed back to our fibre and filament spinning mills, to be made into new top-quality products.

On the other hand, in fibre production there occurs in the manufacture of tow a small proportion of tow that cannot be used for converting and has to be cut out. Instead of selling this material as waste, it is cut up, pressed into balls and then carded / combed by a partner, resulting in a 1A quality product. The GRS certification (Global Recycled Standard) is requested for this. As with converter tow from new material, the recycled tow is mostly incorporated into polyester wool blends (55 % PET / 45 % wool), which are used primarily in corporate wear and uniforms.

In the area of Post-Consumer Recycling, Trevira offers filament yarns consisting of 100 % recycled PET bottles. Our parent company Indorama manufactures very high quality recycled chips from PET bottles. Since only transparent PET bottles are used in Thailand, the flakes and chips are of a particularly good and very uniform quality. The recycled chips, fibres and filaments from Indorama bear the GRS certificates (Global Recycled Standard) and RCS-NL (Recycled Claim Standard). Trevira processes the regranulate made by Indorama from bottle flakes into filament yarns consisting 100 % of recycled material. The filament yarns are available in titres 167 and 76 dtex normal polyester. Alongside technical applications, they are used in the automotive and apparel sectors. In addition, many promising developments with the recycled material are on their way.