Process and plant for continuous manufacture of resting articles of latex foam

摘要

Process for continuous manufacture of an unlimited length latex foam block including at least two layers to form after successive cross cuts resting articles such as mattresses, cushions and parts of such articles. At least a first and second latex foam mixture with different characteristics among them are separately prepared and sent consecutively at a predetermined distance from each other on a laying surface in continuous progress. The second mixture is deposited on the already shaped first layer. The first and the second layers are gelatinized concurrently at the same place. The two layers are directly joined to each other along the contact surface by mechanical co-penetration of appendices of the one into micro-cavities of the other and by reciprocal tack of the two layers latex particles following breaking of the protective barrier between particles during gelatinizing.