Production of soft paper products from high and low coarseness fibers

A method of making sanitary paper products from cellulosic fibers comprising:

• (a) pulping said fibers in water with agitation to produce a pulp slurry, said slurry having a consistency between about 3% and 18% and a pH below about 8.0;
• (b) maintaining said pulp slurry at a temperature above about 100.degree. F. for at least 15 minutes;
• (c) adding to the slurry at a temperature below 140.degree. F. a surfactant and at least one enzyme selected from the group consisting of cellulase, hemicellulase and lipase;
• (d) maintaining said pulp in contact with said enzyme for at least about 30 minutes;
• (e) dewatering the slurry to a consistency from about 25% to about 35%;
• (f) crumbing the dewatered slurry, thereby producing crumbed fibers;
• (g) passing the crumbed fibers through a fiber disperser, and mixing oil selected from the group consisting of vegetable oil, mineral oil, lanolin oil and derivatives thereof with said fiber to produce treated pulp containing oily product, and maintaining said fibers at a temperature of about 180.degree. F.;
• and
• (h) forming said treated pulp into a wet web and drying the web to form a sanitary paper product.

A method of making sanitary paper from high yield type cellulosic fibers comprising:

• (a) slurrying said cellulosic fibers with water at a consistency of between about 3% to about 18%;
• (b) adding surfactant and at least one enzyme to said slurry, said enzyme selected from a group consisting of cellulase, hemicellulase and lipase, and maintaining said pulp in contact with said enzyme for at least about 15 minutes;
• (c) dewatering the slurry to a consistency of from about 25% to about 35%;
• (d) crumbing the dewatered fiber, thereby producing a crumb fiber;
• (e) passing the crumbed fibers through a fiber disperser and mixing oil selected from the group consisting of vegetable oil, mineral oil, lanolin oil, and derivatives thereof with said fiber, and maintaining said fibers at a temperature of about 180.degree. F. to produce a treated pulp;
• (f) forming said treated pulp into a wet web and drying the web to form a sanitary paper product;
• and
• (g) wherein said treated pulp is maintained below about a pH of 8.

A method of making sanitary paper products from cellulosic fibers, comprising:

• (a) pulping said cellulosic fibers in water with agitation to produce a pulp slurry, said slurry having a consistency between about 3% and 18% and a pH below about 8.0;
• (b) adding to the slurry a surfactant and at least one enzyme selected from the group consisting of cellulase, hemicellulase and lipase and maintaining said pulp slurry at a temperature above about 100.degree. F. for at least 15 minutes;
• (c) dewatering the slurry to consistency of from about 25% to about 35%;
• (d) crumbing the dewatered slurry, thereby producing crumbed fiber;
• (e) passing the crumbed fiber through a fiber disperser and mixing oil selected from a group consisting of vegetable oil, mineral oil, lanolin oil and derivatives thereof with said fiber to produce treated pulp containing oily products, and maintaining said fibers at a temperature of about 180.degree. F.;
• and
• (f) forming said treated pulp with a wet web and drying the web to form a sanitary paper product.

A method of preparing cellulosic fibers for making cellulosic sheets comprising:

• (a) pulping said cellulosic fibers in water with agitation to produce a pulp slurry, said slurry having a consistency of from about 3% to about 18% and a pH below about 8.0;
• (b) adding to the slurry a surfactant and at least one enzyme selected from the group consisting of cellulase, hemicellulase and lipase and maintaining said pulp slurry at a temperature above about 100.degree. F. for at least 15 minutes;
• (c) dewatering the slurry to a consistency of from about 25% to about 35%;
• (d) crumbing the dewatered slurry, thereby producing crumbed fibers;
• and
• (e) passing the crumbed fibers through a fiber disperser and mixing oil selected from the group consisting of vegetable oil, mineral oil, lanolin oil, and derivatives thereof with said fiber to produce treated pulp containing oily products.

A method of preparing cellulosic fibers for making cellulosic sheets comprising:

• (a) pulping said fibers in water with agitation to produce a pulp slurry, said slurry having a consistency of from about 3% to about 18% and a pH below about 8.0;
• (b) maintaining said pulp slurry at a temperature above about 100.degree. F. for at least 15 minutes;
• (c) adding to the slurry at a temperature below 140.degree. F. a surfactant and at least one enzyme selected from the group consisting of cellulase, hemicellulase and lipase;
• (d) maintaining said pulp in contact with said enzyme for at least about 30 minutes;
• (e) dewatering the slurry to a consistency of from about 25% to about 35%;
• (f) crumbing the dewatered slurry, thereby producing crumbed fibers;
• and
• (g) passing the crumbed fibers through a fiber disperser, and mixing oil selected from the group consisting of vegetable oil, mineral oil, lanolin oil, and derivatives thereof with said fiber to produce treated pulp containing oily products, and maintaining said fibers at a temperature of about 180.degree. F.

A method of preparing cellulosic fibers for making cellulosic sheets comprising:

• (a) slurrying said cellulosic fibers with water at a consistency of from about 3% to about 18% to produce a pulp slurry;
• (b) adding surfactant and at least one enzyme to said slurry, said enzyme selected from a group consisting of cellulase, hemicellulase and lipase, and maintaining said pulp in contact with said enzyme for at least about 15 minutes;
• (c) dewatering the slurry to a consistency of from about 25% to about 35%;
• (d) crumbing the dewatered fiber, thereby producing crumbed fibers;
• (e) passing the crumbed fibers through a fiber disperser and mixing oil selected from the group consisting of vegetable oil, mineral oil, lanolin oil, and derivatives thereof with said fiber, while maintaining said fibers at a temperature of about 180.degree. F. and a pH below about 8, to produce treated pulp containing oily products.

A method of preparing cellulosic fibers for making cellulosic sheets comprising:

• (a) pulping said cellulosic fibers in water with agitation to produce a pulp slurry, said slurry having a consistency of from about 3% to about 18% and a pH below about 8.0;
• (b) adding to the slurry a surfactant and at least one enzyme selected from the group consisting of cellulase, hemicellulase and lipase and maintaining said pulp slurry at a temperature above about 100.degree. F. for at least 15 minutes;
• (c) dewatering the slurry to a consistency of from about 25% to about 35%;
• (d) crumbing the dewatered slurry, thereby producing crumbed fibers;
• and
• (e) passing the crumbed fibers through a fiber disperser while maintaining the fiber at a temperature of about 180.degree. F. and mixing oil selected from the group consisting of vegetable oil, mineral oil, lanolin oil, and derivatives thereof with said fiber to produce treated pulp containing oily products.