Soft tissue paper containing an oil and a polyhydroxy compound
AssigneeThe Procter & Gamble Company
InventorsPaul D. Trokhan, Dean Van Phan
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Abstract
Tissue paper having an enhanced bulk and tactile softness through incorporation of an effective amount of a polyhydroxy compound and an oil is disclosed. Preferably, from about 0.05% to about 2.0% of the polyhydroxy compound, on a dry fiber weight basis, and from about 0.05% to about 2.0% of an oil, on a dry fiber weight basis, are incorporated in the tissue paper. These nonionic compounds have high rates of retention when applied to wet tissue paper webs according to the process described herein. Tissue embodiments of the present invention may further comprise a quantity of strength additive, such as starch, to increase paper strength.
Claims29
Tissue paper comprising:
- a) wet-laid cellulosic fibers;
- b) from about 0.01% to about 5% of a water soluble polyhydroxy compound, based on the dry fiber weight of said tissue paper;
- and
- c) from about 0.01% to about 5% of an oil selected from the group consisting of petroleum-based oils, polysiloxane-based oils, and mixtures thereof, based on the dry fiber weight of said tissue paper;
- wherein said tissue paper has a basis weight of from about 10 to about 65 g/m.sup.2 and a density of less than about 0.60 g/cc, said polyhdroxy compound and said oil having being applied to at least one surface of a wet tissue paper web.
A process for making soft tissue paper, said process comprising the steps of:
- a) wet-laying an aqueous slurry containing cellulosic fibers to form a web;
- b) applying to said web, at fiber consistency of from about 10% to about 80%, a sufficient amount of a water soluble polyhydroxy compound and a sufficient amount of an oil selected from the group consisting of petroleum-based oils, polysiloxane-based oils, and mixtures thereof, based on the dry fiber weight of said tissue paper to impart a bulk softness to said structure;
- and
- c) drying and creping said web;
- wherein said tissue paper has a dry basis weight of from about 10 to about 65 g/m.sup.2 and a density of less than about 0.60 g/cc.
Dependencies are inferred from the claim text.