Abstract: A method of manufacturing a multi-hardness and multi-elasticity foam mattress in which a plurality of foam blocks are formed integrally with each other by use of a continuous foaming process the method comprising the steps of: arranging a plurality of nozzles above one end of a molding plate; installing a separation wall between two adjacent ones of the respective nozzles arranged at the molding plate; laminating a release paper on the top of the molding plate; spraying foaming solutions from the nozzles, respectively, wherein the release paper moves in a direction toward the other end of the molding plate corresponding to a moving speed of the foaming solution; and molding a foam body having a plurality of zones where a plurality of unit foam blocks have multi-hardnesses and multi-elasticities.

Abstract: A method of manufacturing a multi-hardness and multi-elasticity foam mattress is provided, in which unit foam blocks made of polyurethane foams having multi-hardnesses and multi-elasticities are formed integrally with each other along the longitudinal direction of the foam mattress by the continuous foaming process to thereby mold a foam mattress. The foam mattress manufacturing method is simplified to increase the productivity of the foam mattress, and the durability of the foam mattress is excellent as well as the optimum body pressure distribution and somatotype maintenance effects can be implemented, and associated unit foam blocks of zones positioned symmetrically opposed to each other, based on a unit foam block positioned at the central portion of the mattress in the longitudinal direction of the foam mattress, have the same hardness and elasticity as each other.