Method and Apparatus for Producing Fluff-Free Absorbent Cores

Diego Gualteri, San Giovanni Teatino, Italy; and Alessandro Cipriani, San Giovanni Teatino, Italy.

Assigned to Fameccanica. Data S.p.A.

Filed: 8/9/21
Issued: 6/16/26

An apparatus for producing fluff-free absorbent cores for absorbent sanitary articles, comprising: a fiber deposition unit configured to deposit loose unbound fibers onto a movable surface; a dispensing device configured to apply superabsorbent granular material into said loose unbound fibers, a mixing unit configured to mix said loose unbound fibers and the superabsorbent granular material deposited on said movable surface, and a fixing unit arranged downstream of said mixing unit and configured to bind said loose unbound fibers together so as to form an absorbent structure of bound fibers in which the superabsorbent granular material is incorporated, wherein the fixing unit is configured to carry out binding together said loose unbound fibers by a thermal or mechanical process, wherein the movable surface includes a movable suction surface fluidly connected to a suction source, and wherein the fiber deposition unit comprises nozzles configured to project the loose unbound fibers onto the movable suction surface fluidly connected to the suction source, by pressurized air jets.