Appeal No. 2003-1818
Application 09/223,602
surface layer comprising at least about 60% and
preferably about 85% or more short papermaking fibers;
having an HTR-Texture of the top surface layer of about
1.0 or less, and more preferably about 0.7 or less, and
most preferably about 0.1 or less; having an FFE-Index
of the top surface of about 60 or more, and preferably
about 90 or more. The process for making such paper
must include the step of breaking sufficient interfiber
bonds between the short papermaking fibers defining its
top surface to provide sufficient free end portions
thereof to achieve the required FFE-Index of the top
surface of the paper. Such bond breaking is preferably
achieved by dry creping the paper from a creping surface
to which the top surface layer (short fiber layer) has
been adhesively secured, and the creping should be
effected at a fiber consistency (dryness) of at least
about 80% and preferably at least about 95% consistency.
Such paper may be made through the use of conventional
felts, or foraminous carrier fabrics in vogue today.
Such paper may be but is not necessarily of relatively
high bulk density [column 4, line 49, through column 5,
line 3].
Carstens discloses multiple embodiments of this tissue
paper. Figure 1 illustrates a two-layer design having the
following general characteristics:
A line drawing sectional view of an exemplary paper
sheet 70 embodying the present invention is shown in
FIG. 1 to comprise a top layer 71 having a velutinous
top surface 72 defined by free fiber ends 73 of
relatively short papermaking fibers 74, and a second
layer 75 of fibrous papermaking material such as
relatively long papermaking fibers 76. The top surface
72 is also referred to as the Yankee-side of paper 70,
and the opposite side is also referred to as the off-
Yankee-side because of their respective orientations
with the Yankee dryer surface when made as described
below. Paper 70, preferably has a total basis weight of
from about 6 to about 40 pounds per 3,000 square feet
(about 10 to about 65 grams per square meter), and layer
71 preferably has a basis weight of from about 3 to
7
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