Process for making soft creped tissue paper and product therefrom
AssigneeThe Procter & Gamble Company
InventorsKenneth D. Vinson, Paul T. Weisman, Dean V. Phan
Life of this patent
Estimating the term…
Abstract
Soft creped tissue paper products comprising papermaking fibers and a crepe facilitating composition are disclosed. The crepe facilitating composition comprises a bonding inhibitor, a cationic starch and a carboxymethyl cellulose. Preferably, the bonding inhibitor is a quaternary ammonium compound. The use of a bonding inhibitor, a cationic starch and a carboxymethyl cellulose results in a creped tissue paper that is both strong and soft. A creped papermaking process comprising the addition of the crepe facilitating composition is also disclosed. The crepe facilitating composition offers the potential to improve production capacity.
Claims29
A soft creped tissue paper comprising:
- a) papermaking fibers;
- and
- b) a crepe facilitating composition comprising:
- i) from about 0.02% to about 1.0% by weight, of a bonding inhibitor, based on the dry weight of the papermaking fibers;
- ii) from about 0.02% to about 0.5% by weight, of a water soluble carboxymethyl cellulose, based on the dry weight of the papermaking fibers;
- and
- iii) from about 0.05% to about 3.0% by weight, of a cationic starch based on the dry weight of the papermaking fibers,
- wherein said bonding inhibitor is present in a weight ratio relative to the carboxymethyl cellulose of about 1:5 to about 5:1 and wherein said bonding inhibitor is a quaternary ammonium compound.
A process of making a creped tissue paper comprising the steps of:
- a) forming an aqueous slurry of paper making fibers;
- b) adding a crepe facilitating composition comprising:
- i) from about 0.02% to about 1.0% by weight, of a bonding inhibitor, based on the dry weight of the papermaking fibers, wherein said bonding inhibitor is a quaternary ammonium compound;
- ii) from about 0.02% to about 0.5% by weight, of a water soluble carboxymethyl cellulose, based on the dry weight of the papermaking fibers;
- and
- iii) from about 0.05% to about 3.0% by weight, of a cationic starch, based on the dry weight of the papermaking fibers;
- wherein said bonding inhibitor is present in a ratio relative to the carboxymethyl cellulose of about 1:5 to about 5:1;
- c) depositing the papermaking fibers on a foraminous surface so that the excess water used to form the slurry is removed forming an embryonic web;
- d) transferring the embryonic web to a carrier surface upon which the water removal continues forming a semi-dry web, said carrier surface being selected from the group consisting of papermaking felts and forming fabrics;
- e) transferring the semi-dry web and securing it to the surface of a Yankee dryer upon which the drying is continued until the web reaches a substantially dry condition;
- f) removing the dried web from the Yankee dryer by means of a creping blade;
- and
- g) winding the creped web on a reel.
Dependencies are inferred from the claim text.