초록 ▼

The invention relates to tissue products having improved softness properties and methods of making them. Specifically, improved softness is achieved by incorporating one or more softeners/debonders into the fiber furnish at the wet end of the tissue machine prior to formation, followed by a topical

The invention relates to tissue products having improved softness properties and methods of making them. Specifically, improved softness is achieved by incorporating one or more softeners/debonders into the fiber furnish at the wet end of the tissue machine prior to formation, followed by a topical treatment with one or more softeners/debonders after the tissue web is dried. The result is a tissue product with added bulk and a smooth surface feel, both properties contributing to improved softness characteristics.

대표청구항 ▼

[ We claim:] [1.] A method for making a soft tissue comprising:(a) forming an aqueous suspension of papermaking fibers having from about 0.01 to about 6 weight percent, based on dry fiber, of a quaternary ammonium compound having the following structure: [ STR 25 ] wherein X=chloride, methyl sulfate

[ We claim:] [1.] A method for making a soft tissue comprising:(a) forming an aqueous suspension of papermaking fibers having from about 0.01 to about 6 weight percent, based on dry fiber, of a quaternary ammonium compound having the following structure: [ STR 25 ] wherein X=chloride, methyl sulfate or other compatible counterion; and R=aliphatic, saturated or unsaturated, C.sub.8 -C.sub.22 ;(b) forming a tissue web by depositing the aqueous suspension of papermaking fibers onto a forming fabric;(c) dewatering and drying the tissue web; and(d) topically applying to the dry tissue web from about 0.01 to about 10 weight percent, based on dry fiber, of a phospholipid having the following structure: [ STR 26 ] wherein A=an anion; M=a cation;R, R.sub.1 & R.sub.2 can be the same or different, are alkyl, substituted alkyl, alkyl aryl or altkenyl groups of up to 16 carbon atoms, and the total carbon atoms of R+R.sub.1 +R.sub.2 =10 to 24; andR' is an amidoamine moiety of the structure: [ STR 27 ] wherein n=2 to 6; R.sub.3 =hydrogen or alkyl, hydroxyalkyl or alkenyl of up to 6 carbons; or cycloalkyl of up to 6 carbon atoms, or polyoxyalkylene of up to 10 carbon atoms; andR.sub.8 has the following structure: [ STR 28 ] wherein n=3 or greater; p=1 to 1000; andq=1 to 25.