US2012241114A1PendingUtilityA1
Process for production of a paper or paperboard product
Est. expiryDec 3, 2029(~3.4 yrs left)· nominal 20-yr term from priority
D21H 11/18D21H 21/18D21H 27/30D21H 17/28D21H 21/50D21H 17/25B82Y 30/00
30
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Claims
Abstract
The present invention relates to a process for producing a paper or paperboard product which process comprises the steps of, providing a furnish comprising fibers, adding starch to the furnish, adding microfibrillated cellulose to the furnish, conducting the furnish to a wire in order to form a web, wherein the starch and microfibrillated cellulose is added separately to the furnish.
Claims
exact text as granted — not AI-modified1 . A process for producing a paper or paperboard product which process comprises the steps of:
providing a furnish comprising fibers, adding starch to the furnish, adding microfibrillated cellulose to the furnish, conducting the furnish to a wire in order to form a web, wherein the starch and microfibrillated cellulose is added separately to the furnish.
2 . The process according to claim 1 wherein 2-15% by weight of starch and 1-15% by weight of microfibrillated cellulose is added.
3 . The process according to claim 1 wherein the web being formed by said furnish comprising starch and microfibrillated cellulose forms a layer of the paper or paperboard product.
4 . The process according to claim 3 wherein the web forms a middle layer of the paper or paperboard product.Cited by (0)
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