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US 12,662,776 B2Granted
Method for producing shaped products from a plurality of paper layers arranged one above another
AssigneeOPTIMA consumer GmbH
InventorJens Scafarti
Life of this patent
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Abstract
A method for producing shaped products from multi-layer paper dispenses with subsequent drying steps and still allows entirely compostable shaped products to be produced that, in terms of their shape, are not limited to flat angles between flat regions. A corresponding shaped product made of paper and to a device for carrying out the method are disclosed.
Claims12
A method for producing shaped products from a plurality of paper layers, comprising:
- i) feeding the plurality of paper layers arranged one above another between a positive mold and a complementary negative mold of a pressing tool with pressing surfaces, each of the paper layers having a plurality of free fiber ends on its surface;
- ii) aligning the free fiber ends transversely to top and bottom sides of the paper layers by suctioning off or feeding a gas or gas mixture, wherein a flow direction of the gas or gas mixture corresponds to a desired alignment;
- and
- iii) pressing the paper layers to form a shaped product corresponding to the positive mold and the complementary negative mold by the pressing tool.
1 more element
Dependencies are inferred from the claim text.