Treated article, methods of making the treated article, and dispersion for use in making the treated article

A dispersion for use in a process of making a treated article, the dispersion comprising:

• a solvent;
• a sizing agent present in an amount of from 10 to 50 parts by weight based on 100 parts by weight of the dispersion, with the sizing agent comprising a wax or the component thereof independently selected from a group consisting of a stearate, beeswax, candelilla wax, palmitate, behenate, and combinations thereof, with the wax or component thereof having an acid value of from 10 mg to 220 mg, KOH/g as measured in accordance with USP 401;
• and
• a retention aid present in an amount of from 0.1 to 12 parts by weight based on 100 parts by weight of the dispersion, with the retention aid selected from the group consisting of,
• i. a nitrogen-containing according to Formula IIa:
• ii. a nitrogen-containing polymer according to Formula IIb:
• iii. a nitrogen-containing polymer according to Formula IIc:
• and
• iv. combinations thereof,
• wherein the (a), (b1), (b2), (b3), and (e) represent the molar percent of the individual repeating unit.

A method of making a treated article, the method comprising:

• providing a fiber slurry including fibers and water;
• combining a sizing agent with the fiber slurry, the sizing agent comprising 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;
• combining a retention aid with the fiber slurry, the retention aid comprising a nitrogen-containing polymer independently selected from the group consisting of,
• i. a nitrogen-containing polymer of Formula I,
• wherein (a), (b), (c), (d), and (e) individually represent the molar percent of each repeating unit included in the nitrogen-containing polymer of Formula I,
• wherein R0 is independently selected from the group consisting of:
• of H,
• and combinations thereof, and
• wherein:
• Rz is independently selected from H, —CH3, and combinations thereof,
• Rx is independently selected from H, —OH, —COOH, —COOR1, —OCOR1, —R1, —R3OH, —OR1, —NR1R1, —R3NH2, —NH2, —COO(CH2)2N(R1)2, —COO(CH2)2N+(R1)3X−, —COO(CH2)3N+(R1)3X−, and combinations thereof,
• Y is independently selected from H, —OH, —R1, —OR1, —NR1R1, —NH2, and combinations thereof,
• Z is independently selected from H, —OH, —C═O, —R1, —OR1, —NR1R1, —NH2 and combinations thereof,
• R1 is independently selected from H, a straight chain or branched alkyl or alkenyl containing up to 22 carbons, and combinations thereof,
• R2 is independently selected from H, a monosaccharide, an oligosaccharide, polysaccharide moiety, a straight or branched alkyl or alkenyl group up to 22 carbons optionally containing a hydroxyl or aldehyde group, and combinations thereof,
• R3 is independently selected from a straight chain or branched alkyl or alkenyl containing up to 22 carbons or combinations thereof,
• R4 is independently selected from a straight chain or branched alkyl group containing up to 18 carbons, optionally substituted with a hydroxyl group, and combinations thereof,
• R5 is independently selected from H, —OH, —COOH, —COOR1, —OCOR1, —R1, —R1OH, —OR1, —CONH2, —CONHCHOHCHO, —NR1, —NR1R1, —R1NH2, —NH2, and combinations thereof,
• A is independently selected from C═O, —CH2, and combinations thereof, and
• X− is independently an anion;
• ii. a polyethyleneimine;
• iii. a polyaminoamide;
• iv. a copolymer formed from the reaction product of epichlorohydrin and dimethylamine;
• and
• v. combinations thereof;
• and
• forming the fiber slurry including the sizing agent and the retention aid into a treated article.