An energy efficient method and apparatus for manufacturing a
biodegradable, compostable, liquid-impermeable lined paper bag for
containing wet (i.e. food) wastes by which all adhesives used in the
process are cold glues applied without using heat and are applied through
an extrusion and/or metering application means. Cellulose film is
advantageously used for the paper liner and a dot matrix configuration of
adhesive is applied between the cellulose and paper layers to laminate
them together. The matrix-defined size of spacings between the points of
application of adhesive on the cellulose film is such that both loss of
the permeability of the cellulose film to water vapour and oxygen and
creation of stress points on the cellulose film are minimized. A second
cold glue is applied to the bag bottom section by a matrix of extrusion
adhesive guns and programmable controller for activating the guns whereby
the guns are activated according to a program of the controller for
applying the second adhesive to pre-determined, programmable areas of the
bag bottom section.