ITEM MOULDED FROM RESIN WITH SPRING STRUCTURE, METHOD AND DEVICE FOR MAKING SURFACE LAYER OF MENTIONED MOULDED ITEM WITH SPRING STRUCTURE Russian patent published in 2009 - IPC D04H3/03 B32B27/02 

FIELD: technological processes.

SUBSTANCE: item moulded from resin and/or elastomer with spring structure is arranged in the form of three-dimensional structure. Item includes cavities and having specified volume density, at the same time three-dimensional structure is produced by means of contact, weave and engagement of neighboring fibres from randomly located loops or spirals from continuous, solid and/or hollow fibres made of thermoplastic resin and/or thermoplastic elastomer so that produced structure has a layerwise structure. At that volume density of surface layers located on opposite longitudinal sides makes from 0.2 to 0.5 g/cm³, and volume density of internal layer installed between surface layers makes from 0.01 to 0.15 g/cm³.

EFFECT: efficiency of production and increased strength of three-dimensional structure.

10 cl, 25 dwg