The invention relates to a method of making a paper product 10, 10.01 to 10.14, wherein the method includes the step of adding natural reinforcing material (31, 31.1, 51, 51.1, 61, 61.1, 71, 71.1) to one of: a) a layer of pulp as it exits or after it exits from a layer formation process or apparatus; or b) a tank 20, 20.1, 20.2 of pulp prior to it exiting from a layer formation process or apparatus; or c) a combination of a) and b). Additionally, the invention relates to paper products made by this process. The present invention also provides a multi-layered material 2.10, 2.10, 2.10.1, 2.100 to 2.1600, and 100 to 1900, and a layer treatment of a layer or layers of a multilayered material, and a multilayered material which has had such a layer or layers treated by such a layer treatment.

Fibrous structures of the present disclosure may comprise discrete cells comprising one or more legs and/or one or more concavities in certain patterns or Cell Groups. The cells may be discrete knuckles or pillows and may comprise a saddle and at least two legs, where the plurality of discrete wet-formed cells may have a Cell Width, a Saddle Height, a Saddle Width, a Leg Length and a Leg Width, and where the pillow surface has a Distance Between Saddles, a Distance Between Cells, a First Leg Separation Distance, and a Second Leg Separation Distance. A ratio of a Leg Length to a Saddle Height may be between about 1.10 and about 24.0. A ratio of a Distance Between Cells to a Leg Separation Distance may be between about 0.200 and about 10.5.

A piece of natural plant material is subjected to one or more chemical treatments to remove substantially all lignin therefrom, thereby allowing the extraction of delignified, cellulose-based fibers. For example, the natural plant material can be a grass, such as bamboo or gladiolus. Subsequent drying of the extracted fiber densifies the structure, yielding improved mechanical properties. In some embodiments, the extracted fibers can be used, either alone or in combination with other materials, as a structural material. For example, the extracted fibers can be embedded within, infiltrated with, coated by, or otherwise combined with a polymer or concrete to form a composite material.

The invention relates to drinking U-straws and more particularly to a paper for manufacturing drinking U-straws, which is environmental friendly, bio-degradable and is able to be formed in the shape of a bent straw with an accordion-like structure at the bend. The paper has high water resistance as well as high strength and elongation properties compatible with the intended use. In particular, the paper for forming a U-straw includes: between 10 and 50 dry wt % of first fibers having a length of between 1.4 mm and 2.5 mm; between 40 and 80 dry wt % of second fibers having a length of between 0.3 mm and 0.8 mm; and between 1 and 6 dry wt % of a sizing agent.

The invention relates to drinking U-straws and more particularly to a paper for manufacturing drinking U-straws, which is environmental friendly, bio-degradable and is able to be formed in the shape of a bent straw with an accordion-like structure at the bend. The paper has high water resistance as well as high strength and elongation properties compatible with the intended use. In particular, the paper for forming a U-straw includes: between 10 and 50 dry wt % of first fibers having a length of between 1.4 mm and 2.5 mm; between 40 and 80 dry wt % of second fibers having a length of between 0.3 mm and 0.8 mm; and between 1 and 6 dry wt % of a sizing agent.

Fibrous structures of the present disclosure may comprise discrete cells comprising side portions that frame a first pillow portion at a junction of a continuous pillow running along an X-direction and a Y-direction; and where the first pillow portion is larger than adjacent portions of the continuous pillow in at least one of the X and Y-directions.