Patent No. EP4367322 (titled "Method For Producing Airlaid Products") was filed by Voith Patent on Jul 5, 2022. The application was issued on Jul 16, 2025.
A method and device for producing airlaid products or nonwoven fabrics utilize starting materials, such as cellulose pulp bales. The process involves shredding the starting material via at least one shredding device in a shredding line to produce shredded material, which is then fed into at least one material buffer. From the buffer, at least one controllable metering device removes the shredded material in a metered manner, feeding it into a preparation line containing a defibration system. The resulting defibrated material is fed to a production machine. The metering device is controlled—potentially via sensors monitoring basis weight—to ensure a continuous, temporally constant mass flow of defibrated material is supplied to the production machine, enabling the use of cost-effective pulp bales.

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