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US 11,697,224 B2Granted
Method for manufacturing compact
AssigneeSeiko Epson Corporation
InventorsYoko Nakai, Shinobu Yokokawa, Hideki Tanaka, Naotaka Higuchi
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Abstract
A method for manufacturing a compact includes a mixing step of mixing a fiber and a powder of a binder to obtain a mixture; an accumulating step of accumulating the mixture to form a web; a humidifying step of adding water to the web; and a forming step of heating and pressurizing the water-added web to obtain a compact. The binder binds between fiber molecules by the addition of water. The powder has an average particle diameter (D50) of 20.0 μm or less.
Claims5
A method for manufacturing a compact, comprising:
- a mixing step of mixing a fiber and a powder of a binder to obtain a mixture;
- an accumulating step of making the mixture fall and accumulate on an accumulation surface to form a web on the accumulation surface;
- a humidifying step of adding water to the web such that the web has a moisture content of 7.0 mass % or more and 50.0 mass % or less with respect to the total mass of the web;
- and
- a forming step of pressurizing the water-added web and heating the water-added web at a temperature of 50.0° C. or more and 100.0° C. or less to obtain a compact, wherein
- the binder is starch that binds between fiber molecules by the addition of water;
- and
- the powder of the binder has an average particle diameter (D50) of 20.0 μm or less.
5 more elements
Dependencies are inferred from the claim text.