Stab proof material in roll form, method and plant for the production thereof

Abstract

A stab proof material in roll form comprising a matrix distributed over both the surfaces of a textile structure and forming a surface film totally interpenetrated in said textile structure. The production method comprises the steps of: unwinding an aramid fabric on conveyor means; distributing an amorphous thermoplastic matrix starting from a micrometric powder, over both surfaces of the aramid fabric as it is unwound; passing the material through a first hot section and then through a second relatively cold section; the first section applies a temperature and a pressure such as to form an amorphous thermoplastic film on the fabric; the second section facilitates detachment of the coated material from the conveyor means. The plant comprises a conveyor belt on which an aramid fabric is unwound; a powder scattering station adapted to distribute a micrometric powder on the aramid fabric as it is unwound on the conveyor belt; a system of double belts in contact through which the fabric is conveyed; the system of double belts in contact defines a first hot section and a second relatively cold section; the first section applies a temperature and a pressure functional to the formation of an amorphous thermoplastic film on the fabric; the second section facilitates detachment of the fabric.

Dependencies are inferred from the claim text.