Filler for use in paper manufacture and method for producing it
AssigneeMetsa-Serla Oy
InventorPetri Silenius
Life of this patent
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Abstract
The invention relates to a filler for use in paper manufacture, said filler containing pigment and noil produced from cellulose fibre and/or mechanical pulp fibre by refining. According to the invention, the pigment has been mixed with noil fibrils, to be used as filler in paper manufacture. The invention also relates to a method for producing a filler for use in paper manufacture, said filler containing pigment and noil produced from cellulose fibre and/or mechanical pulp fibre by refining. According to the invention, the pigment is mixed with noil fibrils, to be used as filler in paper manufacture.
Claims19
Filler for use in paper manufacture, said filler comprising:
- noil produced from one of cellulose fibre and mechanical pulp fibre by refining, and
- pigment mixed with the noil, the noil including noil fibrils corresponding in size distribution to wire screen fraction P50 or finer.
Method for producing a filler for use in paper manufacture, comprising:
- producing said noil from one of cellulose fibre and mechanical pulp fibre by refining, and
- mixing pigment with the noil,
- wherein the noil includes of noil fibrils have a size distribution corresponding substantially to wire screen fraction P50 or finer.
Dependencies are inferred from the claim text.