Method for manufacturing acoustical elements
AssigneeSaint-Gobain Ecophon AB
InventorsPierre Chigot, Emma Arvidsson, Erling Nilsson, Tommy Mansson
Life of this patent
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Abstract
A method for manufacturing acoustical elements, includes providing a first fibre component in a form of mineral wool and a second fibre component in a form of bicomponent fibres having a core with a thermoplastic outer layer, mixing the first fibre component and the second fibre component, for provision of a mixture, shaping the mixture into single layered tile shaped elements whereby the mixture is compressed with a compression ratio to a compressed state, and fixating the single layered tile shaped elements in the compressed state for obtaining the acoustical elements.
Claims11
A method for manufacturing acoustical elements, comprising:
- providing a first fibre component in a form of mineral wool and a second fibre component in a form of bicomponent fibres having a core with a thermoplastic outer layer;
- mixing the first fibre component and the second fibre component to provide a mixture;
- shaping the mixture into a group of single layered tile shaped elements whereby the mixture is compressed with a compression ratio to a compressed state;
- and
- fixating the group of single layered tile shaped elements in the compressed state for obtaining the acoustical elements, wherein
- fixating the group of single layered tile shaped elements comprises heating the group of single layered tile shaped element in the compressed state for melting the thermoplastic outer layer of the bicomponent fibres, whereby the second fibre component is activated for fixating the group of single layered tile shaped elements in the compressed state,
- mixing the first fibre component and the second fibre component and shaping the mixture comprises controlling a mixing ratio of the first fibre component in relation to at least one of the second fibre component and the compression ratio of the mixture for providing a first group of the acoustical elements having a first set of acoustic properties and a second group of the acoustical elements having a second set of acoustic properties being different from the first set of acoustical properties, and
- the compression ratio is further controlled such that the compression ratio for a single acoustical element of the acoustical elements is non-uniform.
Dependencies are inferred from the claim text.