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US 2026/0062869 A1Published application
Apparatus and method for dry forming cellulose products
AssigneeFameccanica.Data S.p.A.
InventorsAlessandro CIPRIANI, Diego GUALTIERI
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Abstract
An apparatus for dry forming of blanks of cellulose products including a forming wheel having an outer surface provided with a plurality of discrete forming seats, and a system for adding alkyl ketene dimer (AKD) to the blanks of cellulose products.
Claims10
An apparatus for dry forming cellulose products comprising:
- a defibrating mill having an inlet section configured to receive a cellulose sheet and an outlet section configured to provide a flow of loose cellulose fibers,
- a fiber deposition chamber configured to receive said flow of loose cellulose fibers from said outlet section of said defibrating mill,
- a forming wheel rotatable about a rotation axis and having an outer surface provided with a plurality of discrete forming seats configured for forming blanks of cellulose products, wherein a sector of said outer surface of the forming wheel faces said fiber deposition chamber so that in operation loose cellulose fibers are deposited in said plurality of discrete forming seats to form blanks of cellulose products including loose cellulose fibers,
- a transfer conveyor configured to receive an array of blanks of cellulose products from said forming wheel, and
- an applicator device configured to apply molten alkyl ketene dimer (AKD) onto said array of blanks of cellulose products moving along said transfer conveyor.
2 more elements
A method for dry forming cellulose products comprising:
- feeding a cellulose sheet to an inlet section of a defibrating mill and providing a flow of loose cellulose fibers in an outlet section of the defibrating mill,
- providing a forming wheel rotatable about a rotation axis and having an outer surface provided with a plurality of discrete forming seats configured for forming blanks of cellulose products,
- sending said flow of loose cellulose fibers from said outlet section of said defibrating mill to a fiber deposition chamber facing a sector of said outer surface of the forming wheel and depositing loose cellulose fibers into said plurality of discrete forming seats so as to form blanks of cellulose products including loose cellulose fibers,
- sending an array of the blanks of cellulose products from said forming wheel to a transfer conveyor, and
- applying molten alkyl ketene dimer (AKD) onto said array of blanks of cellulose products moving along said transfer conveyor.
2 more elements
Dependencies are inferred from the claim text.