The present invention relates to an improved process for producing chemical cellulose pulp wherein biopolymers are added immediately before, during or after a bleaching step, depending on pulp characteristics and on process conditions used. The biopolymers according to the present invention are starches chemically modified by an etherification reaction. This treatment results in a differentiated pulp having improved physical, chemical and mechanical properties when compared with cellulose pulps obtained by traditional processes. The use of said biopolymer alters the relations between important pulp properties rendering their application in papermaking process advantageous. This differentiation increases the possibilities of use and also of new applications, including for the substitution of pulps produced from other cellulose sources. Thus, the present invention also relates to methods of making paper, such as printing, writing, decorative, special or tissue-type papers, through the use of the cellulose pulps modified by the above process.

The present invention relates to an improved process for producing chemical cellulose pulp wherein biopolymers are added immediately before, during or after a bleaching step, depending on pulp characteristics and on process conditions used. The biopolymers according to the present invention are starches chemically modified by an etherification reaction. This treatment results in a differentiated pulp having improved physical, chemical and mechanical properties when compared with cellulose pulps obtained by traditional processes. The use of said biopolymer alters the relations between important pulp properties rendering their application in papermaking process advantageous. This differentiation increases the possibilities of use and also of new applications, including for the substitution of pulps produced from other cellulose sources. Thus, the present invention also relates to methods of making paper, such as printing, writing, decorative, special or tissue-type papers, through the use of the cellulose pulps modified by the above process.

Compostable seaweed-based compositions, and associated systems and methods are disclosed herein. In some embodiments, the seaweed-based composition comprises (i) a phycocolloid including agar, alginate, carrageenan, and/or unprocessed seaweed, (ii) a polymer comprising thermoplastic starch (TPS), polycaprolactone (PCL), polylactic acid (PLA), polyhydroxyalkanoates (PHA), polyesteramide (PEA), polybutylene adipate terephthalate (PBAT), polybutylene succinate (PBS), and/or polyvinyl alcohol (PVOH), and (iii) an additive, wherein the phycocolloid comprises no more than 90 wt % of the seaweed-based composition, the biopolymer comprises no more than 80 wt % of the seaweed-based composition, and the additive comprises no more than 50 wt % of the seaweed-based composition.

Compostable seaweed-based compositions, and associated systems and methods are disclosed herein. In some embodiments, the seaweed-based composition comprises (i) a phycocolloid including agar, alginate, carrageenan, and/or unprocessed seaweed, (ii) a polymer comprising thermoplastic starch (TPS), polycaprolactone (PCL), polylactic acid (PLA), polyhydroxyalkanoates (PHA), polyesteramide (PEA), polybutylene adipate terephthalate (PBAT), polybutylene succinate (PBS), and/or polyvinyl alcohol (PVOH), and (iii) an additive, wherein the phycocolloid comprises no more than 90 wt % of the seaweed-based composition, the biopolymer comprises no more than 80 wt % of the seaweed-based composition, and the additive comprises no more than 50 wt % of the seaweed-based composition.

Fibrous structures containing a plurality of wood pulp fibers and a surface having thereon a surface softening composition containing a metathesized unsaturated polyol ester having one or more of the following properties: (i) a weight average molecular weight of from about 5,000 Daltons to about 50,000 Daltons; (ii) an oligomer index from greater than 0 to 1; and (iii) an iodine value of from about 30 to about 200
is provided.

Fibrous structures containing a plurality of wood pulp fibers and a surface having thereon a surface softening composition containing a metathesized unsaturated polyol ester having one or more of the following properties: (i) a weight average molecular weight of from about 5,000 Daltons to about 50,000 Daltons; (ii) an oligomer index from greater than 0 to 1; and (iii) an iodine value of from about 30 to about 200
is provided.

The invention relates to a method for producing paper, board or the like. The method comprises obtaining a thick stock comprising cellulose fibres, forming a fibrous web and drying of drying the fibrous web. A strength agent system, which comprises at least one synthetic or natural polymer, or their mixture, and microfibrillated parenchymal cellulose material originating from non-wood sources, is added to the thick stock. The invention relates also to paper or board produced by the method.

The invention relates to a method for producing paper, board or the like. The method comprises obtaining a thick stock comprising cellulose fibres, forming a fibrous web and drying of drying the fibrous web. A strength agent system, which comprises at least one synthetic or natural polymer, or their mixture, and microfibrillated parenchymal cellulose material originating from non-wood sources, is added to the thick stock. The invention relates also to paper or board produced by the method.

A pollen paper formed from a plurality of pollen microgels, which paper is dimensionally locked for use in the generation of conventional printed matter. It is possible to remove the printed subject matter from the pollen paper by a process that involves immersing the pollen paper into an alkaline bath, then removing the water through immersing it in a dehydrating bath and finally dimensionally locking the paper by immersing it in an acidic bath.

A pollen paper formed from a plurality of pollen microgels, which paper is dimensionally locked for use in the generation of conventional printed matter. It is possible to remove the printed subject matter from the pollen paper by a process that involves immersing the pollen paper into an alkaline bath, then removing the water through immersing it in a dehydrating bath and finally dimensionally locking the paper by immersing it in an acidic bath.