Process for appying a thin film containing low levels of a functional-polysiloxane and nonfunctionalpolysiloxane to tissue paper.
Номер патента: PH31421A
Опубликовано: 29-10-1998
Автор(ы): Robert S Ampulski
Принадлежит: Procter & Gamble
Опубликовано: 29-10-1998
Автор(ы): Robert S Ampulski
Принадлежит: Procter & Gamble
Реферат: Disclosed is a process for making soft tissue paper which includes providing a dry tissue web and then applying a sufficient amount of a functional-polysiloxane softener compound to the dry web. The softener application process includes the steps of mixing a functional-polysiloxane compound with a suitable nonvolatile diluent, such as a nonfunctional-polysiloxane, forming an emulsion containing the functional-polysiloxane compound and nonvolatile diluent using a volatile solvent, such as water, and surfactant emulsifier, applying the emulsion to a heated transfer surface, evaporating the volatile solvent from the emulsion to form a film, and then contacting the dry tissue web with the heated transfer surface. Preferably, the tissue web is dried to a moisture level below its equilibrium moisture content before application of the functional-polysiloxane material. 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.
Process for applying a thin film containing low levels of a functional-polysiloxane and a nonfunctional-polysiloxane to tissue paper
Номер патента: SG49075A1. Автор: Robert Stanley Ampulski. Владелец: Procter & Gamble. Дата публикации: 1998-05-18.