FIELD: textiles, paper.
SUBSTANCE: preform has a three-dimensional woven configuration with the weft fibres interwoven with providing weaving layer-to-layer of the layers of warp fibres and weaving of fibres inside each layer. And at least two legs emerge from the base. The base and each leg comprise at least two layers of warp fibres. The legs may be parallel or located at an angle to each other or the channel of variable width can be between them. Preferably, the outer ends of the base and/or the legs are made in the form of narrowing formed by the end layers of warp fibres having a stepped pattern.
EFFECT: obtaining woven preform for use in reinforced composite material which may be woven smooth and folded in its final form.
16 cl, 7 dwg
