U.S. patent number 3,599,638 [Application Number 04/790,397] was granted by the patent office on 1971-08-17 for disposable panty with improved crotch construction.
This patent grant is currently assigned to Kimberly-Clark Corporation. Invention is credited to Charlotte I. Rickard.
United States Patent |
3,599,638 |
Rickard |
August 17, 1971 |
DISPOSABLE PANTY WITH IMPROVED CROTCH CONSTRUCTION
Abstract
A disposable panty having an improved crotch construction which
at least one auxiliary layer of absorbent material is disposed over
the crotch area on the inner surface thereof, with the auxiliary
layer secured to the body portion of the panty at the opposite
edges of the crotch area formed by the leg openings so that the
auxiliary layer cooperates with the crotch area to form a
receptacle for a sanitary napkin. In the preferred construction,
two auxiliary layers are provided so that the auxiliary layer on
the soiled side of a first napkin can be removed with the napkin,
and the next napkin inserted between the crotch area and the
remaining auxiliary layer.
Inventors: |
Rickard; Charlotte I. (Neenah,
WI) |
Assignee: |
Kimberly-Clark Corporation
(Neenah, WI)
|
Family
ID: |
25150556 |
Appl.
No.: |
04/790,397 |
Filed: |
January 10, 1969 |
Current U.S.
Class: |
604/396;
604/398 |
Current CPC
Class: |
A61F
13/496 (20130101) |
Current International
Class: |
A61f 013/16 () |
Field of
Search: |
;128/287--291 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Rosenbaum; Charles F.
Claims
I claim as my invention:
1. A disposable panty comprising the combination of a body portion
forming a pair of leg openings and a crotch area between said leg
openings, and at least two auxiliary layers of absorbent disposable
material disposed over the inner surface of said crotch area with
of said layers secured to said body portion at the opposite edges
of said crotch area formed by said leg openings so that a sanitary
napkin can be inserted between said auxiliary layers whereby the
auxiliary layer on the soiled side of the napkin can be removed
when the napkin is removed and the next napkin inserted between
said crotch area and the remaining auxiliary layer.
Description
DESCRIPTION OF THE INVENTION
The present invention relates generally to disposable panties and,
more particularly, to disposable panties of the type that form a
receptacle or pocket for receiving and holding a sanitary
napkin.
It is the primary object of the present invention to provide a
disposable panty having an improved crotch construction adapted to
receive a sanitary napkin, and which can be efficiently
manufactured at high production rates at a low cost.
It is another object of the invention to provide an improved
disposable panty of the foregoing type which can be readily made in
a single size that can be worn by a relatively wide range of
different sized users.
A further object of the invention is to provide an improved
disposable panty of the type described above which can be made from
extremely simple patterns.
Yet another object of the invention is to provide such an improved
disposable panty which can be easily and rapidly made from only two
or three pieces of disposable material with only a few simple
seams.
A still further object of the invention is to provide such an
improved disposable panty which is readily adaptable to automated
production.
It is another object of the present invention to provide such an
improved disposable panty which can be used with or without a
sanitary napkin, and which permits the napkin to be changed without
disposing of the panty, so that the same panty can be used with
several napkins.
Other objects and advantages of the invention will be apparent from
the following detailed description taken in connection will the
accompanying drawings, in which;
FIG. 1 is a front elevation of a disposable panty embodying the
present invention, with a fragment of the front portion thereof
removed to reveal the internal structure;
FIG. 2 is a section taken along line 2-2 in FIG. 1;
FIG. 3 is a section taken along line 3-3 in FIG. 3; and
FIG. 4 is a fragmentary perspective of the crotch construction of
the panty of FIGS. 1 through 3.
While the invention is susceptible of various modifications and
alternative forms, certain specific embodiments thereof have been
shown by way of example in the drawings which will be described in
detail herein. It should be understood, however, that it is not
intended to limit the invention to the particular forms disclosed
but, on the contrary, the intention is to cover all modifications,
equivalents, and alternatives falling within the spirit and scope
of the invention.
Turning now to the drawings, there is shown a disposable panty
having a body portion 10 forming a pair of leg openings 11 and 12,
and a crotch area 13. To permit a single panty size to fit a number
of different sized users, an elastic band 14 is sewed around the
waist of the panty, and a pair of elastic bands 15 and 16 are sewed
around the two leg openings 11 and 12, respectively. The panty may
of any suitable disposable material, but one particularly preferred
material comprises a nonwoven crossed thread fabric having an open
mesh construction, with an applique of fine cotton fibers
adhesively bonded to at least one side thereof. The nonwoven fabric
comprises a set of spaced warped threads which extend in the
machine direction, and a set of spaced fill threads which extend
across the warp threads in the transverse direction. Thus, the two
sets of threads are disposed in face-to-face relation to each
other, and are adhesively bonded together where the threads of one
set cross the threads of the other set. The threads are typically
made of nylon, rayon or the like. The cotton appliques are formed
by depositing fine fibers on the crossed threaded fabric in a
random manner, such as by air forming or the like. The thickness of
the applique may be varied to provide the composite material with
the desired softness, bulk, feel, and other characteristics.
In accordance with one important aspect of the present invention,
at least one auxiliary layer of absorbent material is disposed over
the crotch area of the panty on the inner surface thereof, with the
auxiliary layer being secured to the body portion of the panty at
the opposite edges of the crotch area formed by the leg openings so
that the auxiliary layer cooperates with the crotch area to form a
pocket or receptacle for a sanitary napkin. Thus, in the
illustrative embodiment, an auxiliary layer 20 of absorbent
material is disposed over the crotch area 13 on the inner surface
thereof, and opposite edges 21 and 22 of the auxiliary layer are
sewed to the corresponding opposite edges of the crotch area 13
formed by the leg openings 11 and 12, respectively. Consequently,
the entire central areas of the auxiliary layer 20 and the crotch
area 13 are unattached, so that they can be separated to form a
pocket or receptacle for a sanitary napkin 30. More particularly,
when the sanitary napkin 30 is inserted between the auxiliary layer
20 and the crotch area 13, it is held firmly in place and yet is
still accessible to the menstrual fluids because of the absorbent
nature of the relatively thin auxiliary ayer 20 which covers a
portion of the inner surface of the napkin 30.
It will be appreciated that the auxiliary layer 20 may be secured
to the edges of the crotch area 13 by the same threads that are
used to secure the elastic bands 15 and 16 around the edges of the
leg openings 11 and 12, so that no additional sewing steps are
required to secure the auxiliary layer 20. Consequently, panties
embodying the illustrative crotch construction can be efficiently
manufactured at high production rates, and at a low cost. The
auxiliary layer 20 has a square or rectangular configuration, so
that they can be mass produced at high rates without any special
patterns or the like. Thus, the illustrative garment is uniquely
adapted for automated production.
In accordance with another aspect of the present invention, at
least two auxiliary layers are provided so that a first sanitary
napkin can be inserted between the two auxiliary layers, with the
layer on the soiled side of the napkin being subsequently removed
along with the napkin. A second sanitary napkin can ten be inserted
between the remaining layer and the crotch area of the panty, so
that the same panty can be used with two or more napkins before it
must be thrown away. Thus, in the illustrative embodiment of the
invention shown in the drawings, a second auxiliary layer 40 of
absorbent material is provided between the first auxiliary layer 20
and the crotch area 13. The second layer 40 is secured to the panty
in the same manner as the first layer 20, i.e., opposite edges 41
and 42 thereof are secured to the corresponding opposite edges of
the crotch area formed by the leg openings 11 and 12, respectively.
The two auxiliary layers 20 and 40 are preferably both secured to
the panty by the same thread which is used to sew the elastic bands
15 and 16 around the edges of the leg openings 11 and 12,
respectively.
As can be seen in FIG. 4, the two auxiliary layers 20 and 40
cooperate with the crotch area 13 of the panty to form two separate
pockets or receptacles for sanitary napkins. More particularly, a
first napkin may be inserted between the two layers 20 and 41, as
illustrated in FIGS. 1 through 3. When the first napkin is removed,
the auxiliary layer 20, which is on the soiled side of the napkin,
is removed along with the napkin by simply tearing the material
along the seam lines at the edges 21 and 22. It will be understood
that the thread used to sew the elastic band and the edges of the
auxiliary layers 20 and 40 to the panty is considerably stronger
than the material comprising the auxiliary layers 20 and 40, so
that material can be easily torn along the seam lines without
weakening or breaking the seam.
After the first auxiliary layer 20 has been removed along with the
first napkin, a second sanitary napkin may be inserted between the
second auxiliary layer 40 and the crotch area 13 of the panty. When
this second napkin is removed, the auxiliary layer 40 may also be
removed in the same manner described previously for the first
auxiliary layer 20, i.e., by tearing the material along the seam
lines at the opposite edges 41 and 42. The panty may then be
further used without a sanitary napkin, if desired.
It will be appreciated that more than two auxiliary layers may be
provided, to permit use of the panty with more than two sanitary
napkins. The material used to form the auxiliary layers may be the
same material used in the body portion of the panty, so that
several auxiliary layers may be provided without excessively
increasing the bulk in the crotch area of the panty. A particularly
preferred material for the auxiliary materials is the exemplary
material described previously for the body portion of the panty,
i.e., a nonwoven crossed thread fabric having cotton appliques
formed on opposite sides thereof. The fine fibrous applique on the
surface of the material provides good absorbency, and yet it has a
relatively large pore size so that that absorbed menstrual fluids
are readily transported through the open meshes of the crossed
thread fabric to the sanitary napkin.
As can be seen from the detailed description, the present invention
provides a disposable panty having an improved crotch construction
adapted to receive a sanitary napkin, and which can be efficiently
manufactured at high production rates at a low cost. Panties
embodying this invention can be readily made in a single size that
can be worn by relatively wide range of different sized users, and
which can be made from extremely simple patterns. Indeed, the
illustrative panty can be quickly made from only three or four
pieces of disposable material with only a few simple seams. Panties
embodying this invention are readily adaptable to automated
production. Furthermore, the panty may be used with or without a
sanitary napkin, and the preferred construction with two or more
auxiliary layers permits the napkin to be changed without disposing
of the panty, so that the same panty can be used several times
before it must be disposed of.
* * * * *