Patent attributes
The invention provides a creped tissue web having satisfactory softness without the excess use of water insoluble creping compositions. The satisfactory softness levels, which may be measured as TS7, are generally less than about 10.0 and may be achieved by creping the tissue web with less than about 100 mg/m2? (milligrams of creping composition per square meter of creping cylinder surface area) such as from about 25 to about 100 mg/m2? and more preferably from about 50 to about 75 mg/m2?. It was previously believed that water insoluble creping compositions need to be added at high add-on levels, such as 100 mg/m2? or greater to achieve a desirable softness at a given tensile strength. It has now been surprisingly discovered that the add-on of water insoluble creping composition may be reduced significantly by adding a water soluble adhesive to the creping composition.
