The present disclosure is drawn to primer compositions, which can include a polyvinyl alcohol, a cationic salt, and water. The polyvinyl alcohol can be present in an amount of at least 8 wt % of all dry components of the primer composition. The cationic salt can be present in an amount of at least 15 wt % of all dry components of the primer composition. The polyvinyl alcohol and cationic salt together can make up at least 30 wt % of all dry components of the primer composition.

The present disclosure is drawn to primer compositions, which can include a polyvinyl alcohol, a cationic salt, and water. The polyvinyl alcohol can be present in an amount of at least 8 wt % of all dry components of the primer composition. The cationic salt can be present in an amount of at least 15 wt % of all dry components of the primer composition. The polyvinyl alcohol and cationic salt together can make up at least 30 wt % of all dry components of the primer composition.

An emulsion is provided for defoaming water used in processing of various products such as cellulose or wood-based products or in food processing which is formed by reacting a fatty acid with a compound selected from the group consisting of ammonia, sodium, potassium and combinations thereof so as to form a water soluble soap, dispersing the water soluble soap in water and homogenizing the dispersed water soluble soap with hydrophobic oil or hydrocarbon oil to produce the emulsion. Methods for preparing the emulsion and using the emulsion are also provided. The emulsion is advantageous in that it can improve water resistance and/or reduce the use of water resistant additives during processing of cellulose or wood-based products or food-grade products.

An emulsion is provided for defoaming water used in processing of various products such as cellulose or wood-based products or in food processing which is formed by reacting a fatty acid with a compound selected from the group consisting of ammonia, sodium, potassium and combinations thereof so as to form a water soluble soap, dispersing the water soluble soap in water and homogenizing the dispersed water soluble soap with hydrophobic oil or hydrocarbon oil to produce the emulsion. Methods for preparing the emulsion and using the emulsion are also provided. The emulsion is advantageous in that it can improve water resistance and/or reduce the use of water resistant additives during processing of cellulose or wood-based products or food-grade products.

A sustainable barrier board comprising: a cellulosic board substrate having a first major side and a second major side; a hydrophobic substance impregnated into the cellulosic board substrate; a first biopolymer barrier film on the first major side of the cellulosic board substrate; and a first biopolymer heat sealable coating coupling the first biopolymer barrier layer with the first major side of the cellulosic board substrate.

A treated article includes fibers, a sizing agent, and a retention aid. The sizing agent includes a wax or a component thereof having an acid value of from 10 mg to 220 mg, KOH/g as measured in accordance with USP 401. The retention aid includes a nitrogen-containing polymer independently selected from the group consisting of (i) a nitrogen-containing polymer of Formula I, (ii) a polyethyleneimine, (iii) a polyaminoamide, (iv) a copolymer formed from the reaction product of epichlorohydrin and dimethylamine, and (v) combinations thereof.

A treated article includes fibers, a sizing agent, and a retention aid. The sizing agent includes a wax or a component thereof having an acid value of from 10 mg to 220 mg, KOH/g as measured in accordance with USP 401. The retention aid includes a nitrogen-containing polymer independently selected from the group consisting of (i) a nitrogen-containing polymer of Formula I, (ii) a polyethyleneimine, (iii) a polyaminoamide, (iv) a copolymer formed from the reaction product of epichlorohydrin and dimethylamine, and (v) combinations thereof.

Cellulosic tissue sheets having temporary moisture barrier properties are prepared by applying a solution of reactive size in emollient at an elevated temperature to a previously formed tissue sheet.

Cellulosic tissue sheets having temporary moisture barrier properties are prepared by applying a solution of reactive size in emollient at an elevated temperature to a previously formed tissue sheet.

A twisting paper substrate to be waxed for the production of an opaque waxed paper wrapping, wherein the paper substrate includes a fibrous base, at least one opacifying additive and at least one binder reducing penetration of wax in the fibrous base during the production of the waxed paper substrate by application of wax on the paper substrate, wherein the difference of opacity of the paper substrate before and after Cobb test according to the rizinus Cobb method on one side to be waxed of the paper substrate is most preferably less than or equal to 8 percent.