The present invention relates to a polymer composition comprising an anionic polymer composite having a synthesized polymer portion and a polysaccharide portion, obtainable by polymerizing vinyl monomers in the presence of the polysaccharide. The present invention further relates to a strength system and methods of production and use in providing a paper product.

The present invention relates to a polymer composition comprising an anionic polymer composite having a synthesized polymer portion and a polysaccharide portion, obtainable by polymerizing vinyl monomers in the presence of the polysaccharide. The present invention further relates to a strength system and methods of production and use in providing a paper product.

A wrapping paper for a smoking article includes a base paper, wherein the base paper includes a plurality of burn-suppressing regions that are provided apart from each other on one surface of the wrapping paper, wherein the ratio of diffusion capacity between the burn-suppressing regions and the base paper is in the range of 5% to 35%.

A composite material comprising 65-99 wt % cellulose nanofibers and 0.5-30 wt % of an anionic gelling polysaccharide, as calculated by dry weight of the composite material, a method for preparing such composite material, and different applications and uses of the composite material.

A composite material comprising 65-99 wt % cellulose nanofibers and 0.5-30 wt % of an anionic gelling polysaccharide, as calculated by dry weight of the composite material, a method for preparing such composite material, and different applications and uses of the composite material.

A wrapping paper for a smoking article includes a base paper, wherein the base paper comprises a fibrous material, a filler material, and one or more burning additives. A paper porosity of the base paper is of 10 to 60 CU. A total amount of the one or more burning additives is of 0.1 to 0.7 wt.-% based on the a dry weight of the base paper.

A wrapping paper for a smoking article includes a base paper, wherein the base paper comprises a fibrous material, a filler material, and one or more burning additives. A paper porosity of the base paper is of 10 to 60 CU. A total amount of the one or more burning additives is of 0.1 to 0.7 wt.-% based on the a dry weight of the base paper.

A preparation method of tea residue fiber raw materials includes steps of (1) sun-drying tea residues, crushing the sun dried tea residues, and treating them with concentrated hydrochloric acid and a strong base in succession; (2) extracting water from the treated tea residues to obtain tea polyphenols and pulp respectively, cooking the pulp, and then pressing and dehydrating it to obtain coarse pulp; (3) sequentially grinding and sieving the pulp, and beating it; and (4) adding -cyclodextrin, carboxymethylcellulose sodium, and reinforced starch after the beating, adjusting the pH to 7-8, diluting, adding the tea polyphenols obtained in the second step, stirring uniformly, pressing and dehydrating, and drying to obtain the tea residue fiber raw material.

A preparation method of tea residue fiber raw materials includes steps of (1) sun-drying tea residues, crushing the sun dried tea residues, and treating them with concentrated hydrochloric acid and a strong base in succession; (2) extracting water from the treated tea residues to obtain tea polyphenols and pulp respectively, cooking the pulp, and then pressing and dehydrating it to obtain coarse pulp; (3) sequentially grinding and sieving the pulp, and beating it; and (4) adding -cyclodextrin, carboxymethylcellulose sodium, and reinforced starch after the beating, adjusting the pH to 7-8, diluting, adding the tea polyphenols obtained in the second step, stirring uniformly, pressing and dehydrating, and drying to obtain the tea residue fiber raw material.

The present invention relates to a wet strength, fibre-containing substrate having adjustable wet strength and wetness strength, wherein the substrate comprises fibres, at least one binder, at least one amphoteric amine and at least one moistening agent, wherein the at least one binder comprises or consists of at least one polysaccharide having at least one acid group-containing residue, and wherein the at least 1 moistening agent comprises at least 1 organic component selected from the group consisting of aliphatic alcohols, aliphatic ethers, aliphatic esters, monosaccharides, oligosaccharides and mixtures thereof, preferably aliphatic alcohols, aliphatic ethers and mixtures thereof, and also, furthermore, to a method for producing the wet strength, fibre-containing substrate, and to use thereof.