A composite waterproof corrugated paper includes a stone paper medium and at least one stone liner paper. The stone paper medium has a first fluting surface and includes at least one first body layer and at least one adhesive layer which are coextruded. The first body layer includes a first surface. The adhesive layer is disposed on the first surface. The stone liner paper includes at least one second body layer and a supplementary layer which are coextruded. The supplementary layer is disposed on the second body layer and is attached to several wave crests of the first fluting surface, so that the stone paper medium adheres to the stone liner paper via the adhesive layer. A manufacturing method of the composite waterproof corrugated paper is also provided in the present invention.

Fibrous products having an improved softness are provided, which have beneficial effects on the skin upon use. The fibrous product includes a fibrous material in which this material has at least one of lactic acid or a salt thereof in an amount of, per ply provided, in the range of from about 0.1 to about 15 g/m.sup.2, and in some embodiments, in the range of from about 1.0 to about 1.5 g/m.sup.2. A water activity of the fibrous product is from about 0.03 to 0.85. The salt of lactic acid may, for example, be sodium lactate, potassium lactate, and/or calcium lactate.

The invention provides an aqueous dispersion prepared by dispersing in water an olefin-α, β-unsaturated carboxylic acid copolymer having a relatively small amount of α,β-unsaturated carboxylic acid by using ammonia, and provides a production method for the aqueous dispersion. Specifically, the aqueous dispersion is an aqueous dispersion composition of a copolymer comprising an α,β-unsaturated carboxylic acid or an ester thereof as a constituent unit, the composition comprising ammonia, the copolymer having a heat of crystallization of -30 J/g or less, and the copolymer being present in an amount of 10 to 50 mass%.

The present invention provides formulations comprising a suspension of nanocellulose (NC) elements and a drying/dispersal additive selected from the group consisting of temperature-responsive polymers, small molecule additives in volatile systems, and blocking agents and methods of preparing such formulations, and further provides NC-containing materials, composite materials and useful articles of manufacture made therefrom.

The present invention provides formulations comprising a suspension of nanocellulose (NC) elements and a drying/dispersal additive selected from the group consisting of temperature-responsive polymers, small molecule additives in volatile systems, and blocking agents and methods of preparing such formulations, and further provides NC-containing materials, composite materials and useful articles of manufacture made therefrom.

Absorbent sheet is manufactured utilizing a low charge density debonder composition comprising an imidazolinium surfactant-containing constituent selected from the group consisting of: (i) cationic imidazolinium surfactants with alkylalkenylhydroxy substitution; (ii) zwitterionic imidazolinium surfactants; and (iii) an ion paired surfactant mixture including a zwitterionic imidazolinium surfactant and a cationic surfactant and, in admixture with the imidazolinium surfactant-containing constituent, (iv) a nonionic surfactant.

Absorbent sheet is manufactured utilizing a low charge density debonder composition comprising an imidazolinium surfactant-containing constituent selected from the group consisting of: (i) cationic imidazolinium surfactants with alkylalkenylhydroxy substitution; (ii) zwitterionic imidazolinium surfactants; and (iii) an ion paired surfactant mixture including a zwitterionic imidazolinium surfactant and a cationic surfactant and, in admixture with the imidazolinium surfactant-containing constituent, (iv) a nonionic surfactant.

The present invention provides formulations comprising a suspension of nanocellulose (NC) elements and a drying/dispersal additive selected from the group consisting of temperature-responsive polymers, small molecule additives in volatile systems, and blocking agents and methods of preparing such formulations, and further provides NC-containing materials, composite materials and useful articles of manufacture made therefrom.

The present invention provides formulations comprising a suspension of nanocellulose (NC) elements and a drying/dispersal additive selected from the group consisting of temperature-responsive polymers, small molecule additives in volatile systems, and blocking agents and methods of preparing such formulations, and further provides NC-containing materials, composite materials and useful articles of manufacture made therefrom.

Zwitterionic surfactant compounds and their use in connection with absorbent paper manufacture in debonder and softener formulations. An exemplary surfactant is an imidazolinium compound of formula: ##STR00001## wherein X is SO.sub.3, R.sup.1 is a hydrocarbyl spacer group having a chain length of from 2-6 carbon atoms, R.sup.2 is a hydrocarbyl group having from 8 to 22 carbon atoms; and R.sup.3 is an alkenylamidoalkyl moiety having from 8 to 30 carbon atoms.