DISPENSING CAPSULE AND METHOD AND APPARATUS OF FORMING SAME
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United States of America Patent
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Issued Date -
Nov 16, 2023
app pub date -
May 1, 2023
filing date -
May 1, 2023
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Abstract
In one example, a process for manufacture of a pulp-based dispensing capsule is disclosed. The process includes providing one or more mesh tool sets that are each contoured to one or more preform shapes of the dispensing capsule. Note that each preform shape is a partially shaped version of a final form shape of the pulp-based dispensing capsule. The process also includes providing a holding tank containing a suspension that includes water and pulp fibres; and arranging the mesh tool sets to allow immersion into and withdrawal of the mesh tool sets from the suspension. The process also includes applying a vacuum to the mesh tool sets so as to draw pulp fibres from the suspension onto the mesh tool sets while immersed in the suspension to form a preform pulp fibre mat; and in a second toolset, deforming each preform shape in the preform pulp fibre mat towards the final form shape by the application of pressure.
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