Method for making soft tissue paper using polysiloxane compound
AssigneeThe Procter & Gamble Company
InventorsRobert S. Ampulski, Wolfgang U. Spendel
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Abstract
A process for making soft tissue paper which includes the steps of wet-laying cellulosic fibers to form a web, applying to the wet web, at a fiber consistency level of from about 10% to about 80%, a polysiloxane material, and then drying and creping the web to form the finished tissue paper. The process may further include the steps of applying an effective amount of a surfactant material to enhance softness and/or wettability control; and/or an effective amount of a binder material, such as starch, for linting control, and/or to contribute tensile strength to the tissue paper.
Claims19
A process for making soft tissue paper, said process comprising the steps of:
- a) wet-laying cellulosic fibers to form a web;
- b) applying in an aqueous carrier to said web, at a fiber consistency of from about 10% to about 80%, total web weight basis, a sufficient amount of a polysiloxane compound such that from about 0.004% to about 0.75% of said polysiloxane, based on the dry fiber weight of said tissue paper is retained by said web;
- and
- c) drying and creping said web;
- wherein said tissue paper has a basis weight of from about 10 to about 65 gm.sup.2 and a density of less than about 0.60 g/cc, wherein said polysiloxane is uniformly disposed on the outwardly facing surfaces of said tissue paper, and wherein said tissue paper after aging two weeks after its manufacture has a wetting time of 2 minutes or less for the tissue paper to be completely wetted with water.
Dependencies are inferred from the claim text.