Process for making tissue or towel products comprising nanofilaments

A process for making soft sanitary tissue paper webs comprising the steps of:

• (a) providing a papermaking furnish comprising:
• i) from about 2% to about 56.5% by weight of the papermaking virgin furnish of a refined softwood pulp fiber mixture comprising:
• u.) from about 0% to about 56.4% by weight of the dry fiber basis of the tissue paper of softwood pulp fiber,
• wherein the softwood pulp fiber is optionally refined before being added to the mixture;
• v.) from about 0.05% to about 3.0% by weight of the dry fiber basis of the tissue paper of strengthening additive,
• ii) from about 43.5% to about 99.9% by weight of the dry fiber basis of the tissue paper of a hardwood pulp fiber mixture;
• y.) from about 43.4% to about 99.4% by weight of the dry fiber basis of the tissue paper of hardwood pulp fibers;
• and
• z.) from about 0.05% to about 20.0% by weight of the dry fiber basis of the tissue paper of cellulose nanofilaments;
• iii) optionally up to about 20% by weight of the dry fiber basis of the absorbent towel of a fibrillated manmade cellulose;
• and
• iv) optionally up to about 20% by weight of the dry fiber basis of the absorbent towel of non-wood natural fibers;
• v) optionally up to about 20% by weight of the dry fiber basis of the absorbent towel of non-cellulosic fibers;
• and
• (b) forming a wet fibrous web from said paper making furnish;
• (c) drying said web until said web contains not more than about 10% by weight moisture.

A process for making absorbent towel paper webs comprising the steps of:

• (a) providing a papermaking furnish comprising:
• i) from about 45% to about 90% by weight of the dry fiber basis of the absorbent towel paper web of a refined softwood pulp fiber mixture comprising:
• u.) from about 20.0% to about 89.9% by weight of the dry fiber basis of the absorbent towel paper web of softwood pulp fiber,
• wherein the softwood pulp fiber is optionally refined before being added to the mixture;
• and
• v.) from about 0.05% to about 5.0% by weight of the dry fiber basis of the absorbent towel paper web of strengthening additive,
• ii) from about 10% to about 55% by weight of the dry fiber basis of the absorbent paper web of a hardwood pulp fiber mixture comprising
• y.) from about 9.9% to about 49.9% by weight of the dry fiber basis of the absorbent towel paper web;
• and
• z.) from about 0.05% to about 20.0% by weight of the dry fiber basis of the absorbent towel paper web of a blend of micro- and nanocellulose filaments, wherein the blend comprises:
• A) at least about 40% by weight of the blend of cellulose nanofilaments;
• B) at least about 20% by weight of the blend of intact fibrillated fibers;
• and
• C) at least about 10% by weight of the blend of cellulosic fines;
• iii) optionally up to about 20% by weight of the dry fiber basis of the absorbent towel of a fibrillated manmade cellulose;
• and
• iv) optionally up to about 20% by weight of the dry fiber basis of the absorbent towel of non-wood natural fibers;
• v) optionally up to about 20% by weight of the dry fiber basis of the absorbent towel of non-cellulosic fibers;
• and
• (b) forming a wet fibrous web from said paper making furnish;
• (c) drying said web until said web contains not more than about 10% by weight moisture.

A process for making soft sanitary tissue paper webs comprising the steps of:

• (a) providing a papermaking furnish comprising:
• i) from about 2% to about 56.5% by weight of by weight of the dry fiber basis of the tissue paper of a refined softwood pulp fiber mixture comprising:
• u.) from about 0% to about 56.4% by weight of the dry fiber basis of the tissue paper of softwood pulp fiber,
• wherein the softwood pulp fiber is optionally refined before being added to the mixture;
• and
• w.) from about 0.05% to about 3.0% by weight of the dry fiber basis of the tissue paper of strengthening additive,
• ii) from about 43.5% to about 99.9% by weight of the by weight of the dry fiber basis of the tissue paper of a hardwood pulp fiber mixture comprising
• y.) from about 43.4% to about 99.4% by weight of the dry fiber basis of the tissue paper web of hardwood pulp fibers;
• and
• z.) from about 0.05% to about 20.0% by weight of the by weight of the dry fiber basis of the tissue paper of a blend of micro- and nano-cellulose filaments, wherein the blend comprises:
• A) at least about 50% by weight of the blend of cellulose nanofilaments;
• B) at least about 20% by weight of the blend of intact fibrolated fibers;
• and
• C) at least about 20% by weight of the blend of cellulosic fines;
• iii) optionally up to about 20% by weight of the dry fiber basis of the absorbent towel of a fibrillated manmade cellulose;
• and
• iv) optionally up to about 20% by weight of the dry fiber basis of the absorbent towel of non-wood natural fibers;
• v) optionally up to about 20% by weight of the dry fiber basis of the absorbent towel of non-cellulosic fibers;
• and
• (b) forming a wet fibrous web from said paper making furnish;
• (c) drying said web until said web contains not more than about 10% by weight moisture.

A process for making absorbent towel paper webs comprising the steps of:

• (a) providing a papermaking furnish comprising:
• i) from about 45% to about 90.0% by weight of the papermaking virgin furnish of a refined soft wood pulp fiber mixture comprising:
• u.) from about 20.0% to about 89.9% by weight of the papermaking furnish of soft wood pulp fiber,
• wherein the soft wood pulp fiber is optionally refined before being added to the mixture;
• v.) from about 0.05% to about 5.0% by weight of the papermaking furnish of strengthening additive,
• ii) from about 10.0% to about 55.0% by weight of the papermaking furnish of a hardwood pulp fiber mixture comprising hardwood pulp fibers;
• and
• iii) from about 0.05% to about 20.0% by weight of the dry fiber basis of the absorbent towel paper web of cellulose nanofilaments, added to the mixture of refined soft wood pulp and hardwood pulp;
• and
• iii) optionally up to about 20% by weight of the dry fiber basis of the absorbent towel of a fibrillated manmade cellulose;
• and
• iv) optionally up to about 20% by weight of the dry fiber basis of the absorbent towel of non-wood natural fibers;
• v) optionally up to about 20% by weight of the dry fiber basis of the absorbent towel of non-cellulosic fibers;
• and
• (b) forming a wet fibrous web from said paper making furnish;
• (c) drying said web until said web contains not more than about 6% by weight moisture.

A process for making soft sanitary tissue paper webs comprising the steps of:

• (a) providing a papermaking furnish comprising:
• i) from about 2% to about 56.5% by weight of the papermaking virgin furnish of a refined soft wood pulp fiber mixture comprising:
• u.) from about 0% to about 56.4% by weight of the papermaking furnish of soft wood pulp fiber,
• wherein the soft wood pulp fiber is optionally refined before being added to the mixture;
• v.) from about 0.05% to about 3.0% by weight of the papermaking furnish of cationic strengthening polymer,
• ii) from about 43.5% to about 99.9% by weight of the papermaking furnish of a hard wood pulp fiber mixture comprising hardwood pulp fibers;
• and
• iii) from about 0.05% to about 20.0% by weight of the dry fiber basis of the tissue paper web of cellulose nanofilaments, added to the mixture of refined long fiber soft wood pulp and hardwood pulp;
• and
• iii) optionally up to about 20% by weight of the dry fiber basis of the absorbent towel of a fibrillated manmade cellulose;
• and
• iv) optionally up to about 20% by weight of the dry fiber basis of the absorbent towel of non-wood natural fibers;
• v) optionally up to about 20% by weight of the dry fiber basis of the absorbent towel of non-cellulosic fibers;
• and
• (b) forming a wet fibrous web from said paper making furnish;
• (c) drying said web until said web contains not more than about 6% by weight moisture.