Mouldable fibrous sheet and a production method thereof

1. A web of fibrous cellulosic material derived from wood pulp, said web being suitable for three-dimensional moulding to form a packaging product, wherein the web comprises:

>40 wt % of soft wood chemical pulp comprising cellulose fibers, and

at least one strength enhancement agent,

wherein the web has a grammage less than 400 g/m 2 , and

wherein the cellulose fibers of said soft wood chemical pulp comprises a fiber curl of >9%,

wherein said strength enhancement agent comprises a natural binder agent in the form of a starch, at an amount of 10-75 kg/tn.

2. The web according to claim 1 , wherein the web comprises a density between 600-875 kg/m 3 .

3. The web according to claim 1 , further comprising:

between 0.3-10% by weight of microfibrillated cellulose, based on a total fiber weight of the web.

4. The web according to claim 1 , wherein said starch is selected from a group consisting of: native starch, cooked starch, cationic starch, native chemically modified starch, physically modified polymer grafted starch, enzyme modified starch, anionic starch, amphoteric starch, crosslinked starch, pre-gelled starch, and swelled starch.

5. The web according to claim 1 , wherein said web has been subjected to hydrophobic sizing.

6. The web according to claim 1 , wherein the web comprises a geometrical mean tensile strength index of >50 Nm/g.

7. The web according to claim 1 , wherein the web comprises a geometrical mean stretch, referring to a percentage elongation of the web before rupture, of >4% as measured by standard tensile test ISO 1924-2 with a span length of 20 mm and a test speed of 2 mm/minute.

8. The web according to claim 1 , wherein the web comprises a stretch, referring to a percentage elongation of the web before rupture, in the cross direction (CD), of >6.5% as measured by standard tensile test ISO 1924-2 with a span length of 20 mm and a test speed of 2 mm/minute.

9. A multiply laminate material comprising:

at least two layers,

wherein one layer of the least two layers is a web according to claim 1 .

10. The multiply laminate material according to claim 9 , further comprising:

at least one barrier layer forming a barrier against liquid, gas, aroma, or grease, oil and/or fat.

11. A method for producing a molded, three-dimensional fiber-based product, comprising at least the steps of:

providing a fibrous cellulosic web material according to claim 1 ;

providing a forming tool with at least one three-dimensional mold; and

using the forming tool for forming a three-dimensional product out of the fiber-based material.

12. The method according to claim 11 , wherein said forming is selected from a group consisting of: vacuum forming, thermoforming, cold forming, pressing, or hydroforming.

13. A three-dimensional, fiber-based product obtained by the method according to claim 11 .

14. A three-dimensional, fiber-based product comprising:

a laminate with multiple layers,

whereof at least one layer of said multiple layers is made of the web of fibrous cellulosic material according to claim 1 .

15. The web according to claim 1 , wherein the web comprises a three-dimensional packaging product.