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INPAT- Impact Noise insulating Panel from Textile industry waste

The textile industry, one of the 10 most important manufacturing sectors in Europe, produces about 12 million tones of textile wastes each year, the great majority of them end up in landfills (65%) or are incinerated (18%). The valorisation of textile wastes will result in a profitable solution with reduced environmental impact, alternative to other end of life strategies such as thermal valorisation.

The main objective of the INPAT project is to develop a profitable product based on textile wastes as raw materials for new panels for construction with improved performance in the acoustic isolation to impact noise in buildings. For this purpose, these are the specific objectives significant for the project:

  • To give an added value to a significant part of textile wastes. The textile industry produce wastes of different nature, but in this project the focus is on the pure textile wastes, i.e. flock dust (7%) and the selvage of the sized fabric (30%).
  •  To increase the acoustic and mechanical properties of other comparable products (100% polymeric products). The new product will provide an improved isolation (+20%) to the impact noise when used below grounds and pavements in top slab for building and also in perimeter elastic bands for matching the vertical separation elements with the forged. The mechanical properties will be also improve regarding its stability, as polymeric materials under a constant pressure during the entire useful life of the product, suffer a relaxation phenomena by which they loose dimensional stability and consequently insulating properties
  • To provide a low environmental impact product. Final product will be fully assured by the application of Life-Cycle Analysis techniques, mainly considering the maximum durability of the product and its final full recyclability, so the environmental benefits to be achieved will be high.
  • Major outputs and results (including main result indicators)

Main impacts of INPAT project are: reduction of new raw material used and its energetic expenditure, high recyclability of the solution proposed and high impact noise isolation.

  • Full application of the project would produce the valorisation of up to 45.000 kg/year of textile waste (reduction in landfill occupation about 150 m3/year).
  • As an estimation of the energetic expenditure reduction, the expenditure to produce the same quantity of textile that is going to be employed in the project is about 0.83 €/kg, considering: spinning: 0.6€/kg, weaving: 0.08€/kg, finishing: 0.1€/kg and transport: 0.05€/kg
  • INPAT panels result in a low environmental impact solution (designed with a full Life Cycle approach). Panel's durability and stability will be adapted to the useful life of a building and textile wastes moulded with epoxi-polyester resins can be easily re-processed (e.g. milled) and reused in the same and/or other applications (car insulation, ...).
  • INPAT panels will improve the global index of acoustic reduction and in particular, they reduce the global pressure to impact noise (20%)


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