Fibre composition, use of said composition and article comprising said composition

1. A fiber composition comprising fibres having a length equal or inferior to 7 mm and a viscosity from 10 to 20 cP, wherein the composition comprises the following fibre length distribution, based on dry weight:

i. 0 to 0.2 mm: 1.7 to 33.7%;

ii. 0.2 to 0.5 mm: 12.0 to 40.0%;

iii. 0.5 to 1.2 mm: 35.0 to 83.0%;

iv. 1.2 to 2.0 mm: 0.10 to 3.8%;

v. 2.0 to 3.2 mm: 0.06 to 0.10%; and

vi. 3.2 to 7.0 mm: 0.03 to 0.30%,

wherein the viscosity is measured according to ISO 5351 standard; and

the fibres are microfibrillated cellulose (MFC) fibres, alone or in a blend with cellulosic fibres.

2. The fibre composition according to claim 1 , wherein it comprises the following fibre length distribution, based on dry weight:

i. 0 to 0.2 mm: 16.5%;

ii. 0.2 to 0.5 mm: 29%;

iii. 0.5 to 1.2 mm: 52%;

iv. 1.2 to 2.0 mm: 1.6%;

v. 2.0 to 3.2 mm: 0.06 to 0.10%; and

vi. 3.2 to 7.0 mm: 0.13%.

3. The fibre composition according to claim 1 , wherein the fibres are virgin, recycled, or secondary fibres.

4. The fibre composition according to claim 1 , wherein the fibres are obtained via kraft process.

5. The fibre composition according to claim 1 , wherein the fibres are whitened, semi-whitened, or not whitened.

6. The fibre composition according to claim 1 , wherein the fibres are long or short, wherein the long fibres have a length of more than 2 mm and the short fibres have a length of less than 2 mm.

7. The fibre composition according to claim 1 , wherein the fibre composition presents a dry content in the range from 3% to 70%.

8. The fibre composition according to claim 7 , wherein the fibre composition presents a dry content in the range from 20% to 50%.

9. The fibre composition according to claim 1 , wherein the fibre composition is redispersible.

10. The fibre composition according to claim 9 , wherein, when redispersed, the fibre composition presents at least 70% of the Brookfield Viscosity initial value at 1%.

11. The fibre composition according to claim 1 , wherein the fibre composition comprises from 10,000 to 25 million fibres/g of the composition.

12. The fibre composition according to claim 1 , wherein the fibre composition has a fibre width from 10 to 25 μm.

13. The fibre composition according to claim 1 , wherein the fibre composition has a polymerization degree from 1,000 to 2,000 units.

14. The fibre composition according to claim 1 , wherein the fibre composition has an opacity from 30 to 80%.

15. The fibre composition according to claim 1 , wherein the fibre composition has a fines content of from 10% to 90% and fibrillation of from 5% to 20%.

16. The fibre composition according to claim 1 , wherein the fibre composition has Brookfield Viscosity at 1% of from 92 to 326 cP.

17. The fibre composition according to claim 1 , wherein the fibre composition is appropriate for use in paper manufacturing, fibre cement, thermoplastic composites, inks, varnishes, adhesives, filters, and/or wooden panels.

18. A method of using a fibre composition according to claim 1 , wherein the composition is used for manufacturing of: paper, fibre cement, thermoplastic composites, inks, varnishes, adhesives, filters, and/or wooden panels.

19. An article of manufacture comprising a fibre composition according to claim 1 .

20. The article according to claim 19 , wherein the article is a paper, fibre cement, a thermoplastic composite, an ink, a varnish, an adhesive, a filter, or a wooden panel.

21. The article according to claim 20 , wherein the article is a paper.

22. The article according to claim 21 , wherein the paper has a tensile index of from 70 to 100 Nm/g; elongation of from 2 to 5%; Scott Bond of from 180 to 300 ft·lb/in 2 ; and bursting index of from 4 to 9 KPam 2 /g.

23. The article according to claim 21 , wherein the paper has a volume-to-mass ratio of from 1 to 2 cm 3 /g; Taber stiffness of from 0.3 to 5%; and wall thickness from 3 to 6 μm.