Invention Grant
- Patent Title: Smooth and low density paperboard structures and methods for manufacturing the same
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Application No.: US16869156Application Date: 2020-05-07
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Publication No.: US11293142B2Publication Date: 2022-04-05
- Inventor: Sergio A. Giuste , Steven Parker , Terrell J. Green
- Applicant: WestRock MWV, LLC
- Applicant Address: US GA Atlanta
- Assignee: WestRock MWV, LLC
- Current Assignee: WestRock MWV, LLC
- Current Assignee Address: US GA Atlanta
- Agent Neil G. Cohen
- Main IPC: D21H19/58
- IPC: D21H19/58 ; D21G1/02 ; D21H19/38 ; D21H19/40 ; D21H19/54 ; D21H19/82 ; D21H23/30

Abstract:
A method for manufacturing a paperboard structure includes passing a paperboard substrate through a hot-hard calender to yield a calendered paperboard substrate, the hot-hard calender including a nip defined by a thermo-roller and a counter roller, wherein a contact surface of the thermo-roller is heated to an elevated temperature. The method then includes applying a basecoat to the calendered paperboard substrate to yield a basecoated paperboard substrate, the basecoat includes a basecoat binder and a basecoat pigment blend. The method further includes applying a topcoat to the basecoated paperboard substrate.
Information query
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