Coated Mechanical Pulp Paper

1 . A paper having a brightness of at least about 81% comprising:

pulp having about 28% lignin; and

a coating comprising a pigment to increase the brightness.

2 . The paper according to claim 1 , wherein the coating further comprises:

a second pigment;

a binder; and

minor constituents including at least one dye and a Fluorescence whitening agent to adjust a white shade of the paper.

3 . The paper according to claim 1 , wherein the paper has a basis weight between 48.8 and 81 grams per square meter.

4 . The paper according to claim 1 , wherein the paper has an opacity between 85 and 96.

5 . The paper according to claim 1 , wherein between 2 and 4.5 grams/m 2 of coating are applied to the paper.

6 . The paper according to claim 1 , wherein the pigment is ground calcium carbonate.

7 . The paper according to claim 1 , wherein the coating further comprises:

a second pigment;

a binder; and

minor constituents including at least one dye and a Fluorescence whitening agent to adjust a white shade of the paper; and

wherein the binder includes a latex.

8 . The paper according to claim 1 , wherein the coating further comprises:

a second pigment;

a binder; and

minor constituents including at least one dye and a Fluorescence whitening agent to adjust a white shade of the paper; and

wherein the binder includes a latex and a starch.

9 . A paper having a brightness of at least about 81% comprising:

mechanical pulp; and

a coating comprising a pigment to increase the brightness.

10 . The paper according to claim 9 , wherein the coating further comprises:

a second pigment;

a binder; and

minor constituents including at least one dye and a Fluorescence whitening agent to adjust a white shade of the paper.

11 . The paper according to claim 9 , wherein the paper has a basis weight between 48.8 and 81 grams per square meter.

12 . The paper according to claim 9 , wherein the paper has an opacity between 85 and 96.

13 . The paper according to claim 9 , wherein between 2 and 4.5 grams/m 2 of coating are applied to the paper.

14 . The paper according to claim 9 , wherein the pigment is ground calcium carbonate.

15 . The paper according to claim 9 , wherein the coating further comprises:

a second pigment;

a binder; and

minor constituents including at least one dye and a Fluorescence whitening agent to adjust a white shade of the paper; and

wherein the binder includes a latex.

16 . The paper according to claim 9 , wherein the coating further comprises:

a second pigment;

a binder; and

minor constituents including at least one dye and a Fluorescence whitening agent to adjust a white shade of the paper; and

wherein the binder includes a latex and a starch.

17 . A paper having a brightness of at least about 81% comprising:

thermo-mechanical pulp; and

a coating comprising a pigment to increase the brightness.

18 . The paper according to claim 17 , wherein the coating further comprises:

a second pigment;

a binder; and

minor constituents including at least one dye and a Fluorescence whitening agent to adjust a white shade of the paper.

19 . The paper according to claim 17 , wherein the paper has a basis weight between 48.8 and 81 grams per square meter.

20 . The paper according to claim 17 , wherein the paper has an opacity between 85 and 96.

21 . The paper according to claim 17 , wherein between 2 and 4.5 grams/m 2 of coating are applied to the paper.

22 . The paper according to claim 17 , wherein the pigment is ground calcium carbonate.

23 . The paper according to claim 17 , wherein the coating further comprises:

a second pigment;

a binder; and

minor constituents including at least one dye and a Fluorescence whitening agent to adjust a white shade of the paper; and

wherein the binder includes a latex.

24 . The paper according to claim 1 7 , wherein the coating further comprises;

a second pigment;

a binder; and

minor constituents including at least one dye and Fluorescence whitening agent to adjust a white shade of the paper; and

wherein the binder includes a latex and a starch.

25 . A paper having a brightness of at least about 81% comprising:

chemi-mechanical pulp; and

a coating comprising a pigment to increase the brightness.

26 . The paper according to claim 25 , wherein the coating further comprises:

a second pigment;

a binder; and

minor constituents including at least one dye and a Fluorescence whitening agent to adjust a white shade of the paper.

27 . The paper according to claim 25 , wherein the paper has a basis weight between 48.8 and 81 grams per square meter.

28 . The paper according to claim 25 , wherein the paper has an opacity between 85 and 96.

29 . The paper according to claim 25 , wherein between 2 and 4.5 grams/m 2 of coating are applied to the paper.

30 . The paper according to claim 25 , wherein the pigment is ground calcium carbonate.

31 . The paper according to claim 25 , wherein the coating further comprises:

a second pigment;

a binder; and

minor constituents including at least one dye and a Fluorescence whitening agent to adjust a white shade of the paper; and

wherein the binder includes a latex.

32 . The paper according to claim 25 , wherein the coating further comprises:

a second pigment;

a binder; and

minor constituents including at least one dye and a Fluorescence whitening agent to adjust a white shade of the paper; and

wherein the binder includes a latex and a starch.

33 . A coating for use in manufacturing a coated paper having a brightness of at least about 81% that is made using mechanical pulp, the coating comprising:

a pigment to increase the brightness; and

a binder.

34 . The coating according to claim 33 , further comprising:

a second pigment; and

minor constituents including at least one dye and a Fluorescence whitening agent to adjust a white shade of the paper.

35 . The coating according to claim 33 , further comprising:

a second pigment; and

minor constituents including at least one dye and a Fluorescence whitening agent to adjust a white shade of the paper; and

wherein the pigment is ground calcium carbonate.

36 . The coating according to claim 33 , further comprising:

a second pigment; and

minor constituents including at least one dye and a Fluorescence whitening agent to adjust a white shade of the paper;

wherein the binder includes a latex.

37 . The coating according to claim 33 , further comprising:

a second pigment; and

minor constituents including at least one dye and a Fluorescence whitening agent to adjust a white shade of the paper;

wherein the binder includes a latex and a starch.

38 . A method of making a paper based on mechanical pulp comprising the steps of:

screening the pulp to remove particles of a size defined by the screen from the pulp;

washing the pulp;

bleaching the pulp to increase the brightness;

washing the pulp;

forming a paper from the pulp;

pressing the paper with a shoe press; and

coating the paper with a coating having at least a pigment and a binder,

wherein the paper has a brightness of at least about 81%.

39 . A method according to claims 38 wherein the mechanical pulp is made using a thermo-mechanical process.

40 . A method according to claims 38 wherein the mechanical pulp is made using a chemi-mechanical process.

41 . The method according to claim 38 wherein the washing steps use around 6 m 3 of water per ton of pulp.

42 . The method according to any one of claims 38 wherein the pulp is made from a combination of spruce and fir.

43 . The method according to any one of claims 38 further comprising the step calendering the paper.

44 . The method according to any one of claims 28 wherein the step of coating applies between 2 and 4.5 grams of coating per m 2 of paper.