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Патент USA US3095005

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June 25, 1963
Filed Aug. 26. 1960
United States Patent 0
Ruthard Dietze, Helmstedt, Germany, assignor to Solida
Textil- und Netzwaren-Manufaktur Ruthard Dietze
K.G., Helmstedt, Germany
Filed Aug. 26, 1960, Ser. No. 52,106
Claims priority, application Germany Aug. 28, 1959
3 Claims. (Cl. 132-49)
Patented June 25, 1963
net, for instance of the type described in my US. Patent
No. 2,798,500, is produced of threads of synthetic mate
rial, preferably mono?lament threads which per se are
glass clear ‘and which are coated or tinted with a thin
colored layer, preferably of blonde or brown color. The
tinting coating is so thin that the major portion of the
transparency of the thread is maintained. Preferably,
the thus coated thread will absorb between about 5%
and 15% of natural day light passing in cross-sectional
direction through the same. It is also within the scope
The present invention relates to hair nets, and more par 10 of the present invention to produce the tinted, substan
ticularly, the invention is concerned with hair nets made
of synthetic threads or ?bers by knitting, weaving or
tially transparent thread by admixing to the synthetic mass
from which the thread is to be ‘formed a suitable quan
other methods known per se.
tity of yellow or brown coloring material so that the en
Conventional hair nets are made of opaque, colored
tire mass of the thread-forming material will be tinted
material in a great variety of shades and colors. A very
instead of applying a tinted coating to the surface of the
great number of di?erent shades and colors were required
since it has always been desirable to produce hair nets
Very good results were obtained by producing a hair net
the color of which differs as little as possible from the
according to the present invention in two color shades
color of the hair of the wearer. In view of the great
only, namely blonde-tinted for use with hair of light
variety of shades and colors of natural and dyed hair, 20 color, from blonde to light brown, and brown-tinted for
it was thus necessary to produce or to maintain a stock
use with hair of darker color.
of hair nets of many different colors and nevertheless, it
Surprisingly it has been found according to the present
was not possible to have available hair nets which close
invention that the above described hair nets which con
ly conform to every possible hair color of potential
sist of brownish or yellowish tinted glass clear synthetic
users. Furthermore, even when a reasonably good match 25 threads which retain the major [portion of the trans
between the color of the hair net and the overall color
parency of uncolored glass clear threads of the same ma
of the hair of the wearer was found, the hair net still
terial, will become practically invisible when placed on
would not become substantially invisible when worn, due
the hair of a wearer, whereby the brownish tinted hair
to the fact that natural hair is not of completely even
nets, of course, are used for the darker range of hair
color and thus certain portions of the hair net might be 30 colors, while the yellowish or blonde tinted hair nets are
fully matched while other portions will contrast from
the underlying hair and thus become visible. Up to
used for lighter colored hair. Probably, this is due to
the fact that the original hair color which to a consider
able extent will be visible through the substantially trans
difficulties in matching hair nets to the color of the hair
parent hair net, will modify the tinting of the threads of
of the potential wearer and as a compromise solution
the hair net so that as a combined effect the color of the
hair nets were produced in about nine colors and it was
hair net when worn will be only very slightly different
then attempted to choose in any given case the color
from the color of the exposed portions of hair.
which came closest to the respective hair color.
Thus it is an advantage of the present invention that
It has also been attempted to produce hair nets of glass
notwithstanding the many ‘different shades of hair colors,
clear transparent synthetic threads. It was thought that 40 the hair nets will become substantially invisible and thus
due to the complete transparency and lack of color of
that the blonde or brown tinted hair nets, respectively,
such threads, the hair nets would become invisible and
can be used in combination with a wide range of hair
only the underlying hair would be seen. However, it
colors. Furthermore, the maintenance of a su?icient
was found that the outline of such colorless hair net 45 stock of hair nets will be considerably simpli?ed since
threads usually became visible when such hair nets were
instead of the conventionally used nine hair nets of dif
worn, possibly due to re?ection phenomena.
ferent colors, only hair nets tinted in two different shades,
It is therefore an object of the present invention to over
namely blonde and brown, will have to be produced and
come the above mentioned dii?culties encountered in at
made available for sale. Notwithstanding the fact that
tempts to produce hair nets which when being worn are 50 it is proposed to make the hair nets according to the
practically invisible.
present invention available in two colors only, it has been
It is another object of the present invention to provide
found that an excellent matching and blending of hair
now it was impossible to overcome the above discussed
a hair net which when worn will be practically invisible
within a wide range of hair colors.
nets and hair, ‘so as to make the hair nets practically
scription and of the appended claims.
edge of the hair net.
is achieved.
Other objects and advantages of the present invention 55 invisible,
The hair nets according to the present invention may
will become apparent from a
be produced with a resilient element along the annular
With the above and other objects in view, the present
One manner in which this can be
done is fully described in my Patent No. 2,798,500 (with
out, however, limiting the present invention to hair nets
sentially of threads of tinted, transparent synthetic mate 60 of the type described in the above-mentioned patent). It
is desirable to produce this resilient element of brown
The single FIGURE is a perspective view of my im
or blonde-tinted glass clear resilient threads correspond
proved hair net.
ing to the tinted threads of the hair net.
According to a preferred embodiment of the present
The novel features which are considered as char
invention mainly contemplates a hair net consisting es
invention, the same comprises as an article of manufac 65 acteristic for the invention are set forth in particular
ture, a hair net having an edge, and an elongated resilient
in the appended claims. The invention itself, however,
element being connected along its length to the edge of
both as to its construction and its method of operation,
the hair net, at least the hair net being formed of threads
together with additional objects and advantages thereof,
of tinted, transparent, hair color-simulating synthetic poly
will be best understood from the following description of
speci?c embodiments when read in connection with the
tially the same color and transparency as the hair net.
accompanying drawing, in which the ?gure is a schematic
Thus, according to the present invention, the hair net
illustration of a tinted hair net according to the present
which may be a knitted, woven or otheiwise produced hair
amide material and the resilient element being of substan
invention. As seen in the ‘drawing, the hair net 10 is
formed of mono?lament glass clear tinted synthetic
threads 11. The tinting in accordance with the present
structural changes may be made without departing in
any way from the spirit of the present invention.
invention, may be either in a medium blonde or in
medium ‘brown shade and may be applied as a surface
reveal the gist of the present invention that others can
Without further analysis, 'the foregoing will so fully
by applying current knowledge readily adapt it for various
coating or by tinting the entire mass from which the
applications without omitting features that, from the
threads are formed. Thus, the hair net 10 is formed
standpoint of prior art, fairly constitute essential char
with the preferably ?exible or resilient main hair net
acteristics of the generic or speci?c aspects of this inven
portion 11, the edge of which is indicated at 12. An elon
tion and, therefore, such adaptations should and are
gated resilient element 13 is connected along its length 10 intended
to be comprehended within the meaning and
to the edge 12 in any suitable manner. {This elongated
range of equivalence of the following claims.
element, preferably also consists of tinted transparent
synthetic material.
Preferably, the synthetic material of which the threads
What is claimed as new and desired to be secured by
Letters Patent is:
1. A hair net consisting essentially of transparent sub
of the hair net are formed is of the polyamide type, such 15 stantially
glass-clear threads of synthetic material, said
as mono?lament Perlon or nylon threads. Good results
hair net having an edge; an elongated resilient element
were obtained with threads of between 7 and 70 denier,
being connected along its length to said edge of said hair
and in very many cases best results were obtained with
net; and a thin layer of a tinting agent covering said
threads of approximately 11 denier.
threads so as to tint the same without substantially re
.When the tinting is to be produced by a surface coat
ducing the transparency of the tinted threads.
ing of the uncolored glass clear transparent thread, such
2. As an article of manufacture, a hair net having an
tinting can be produced by dipping the threads into a
edge; and an elongated resilient element. being connected
along its length to said edge of said hair net, at least
hair net being formed of transparent substantially
solutions of acidic dyes so that during the dyeing process 25 glass-clear
mono?lament threads of synthetic polyamide
a chemical reaction takes place combining the free
material, and of a thin layer of a tinting agent covering
suitable dye solution or by applying the dye solution
' y spraying.
Very good results were obtained by using
sulfonic dye acid with the amino or imino group of the
Said threads so as to tint the same without substantially
reducing the transparency of the tinted threads.
nylon chain molecule. However, other suitable textile
dyes may also he used with the notable exception of dye
dispersions, particularly pigment dyes, since such dis
persed and not dissolved dyes would cause an undesir
3. A hair net consisting essentially of transparent sub
ably great reduction in the transparency of the thus
treated threads. Dip dyeing can be carried out in various
ways per se known in the art, for instance, the dye solu
tion may be applied under pressure.
It will be understood’ that each of the elements
stantially glass-clear threads of synthetic material; and
of a thin layer of a hair color-simulating tinting agent
covering said threads so as to tint the same and thereby
to reduce the transparency of the tinted threads by
between about 5% and 15%.
References Cited in the ?le of this patent
described above, or two or more together, may also ?nd
a useful application in other types of hair nets diifering - I
Pieper _____________ __ Sept. 11, 1923
Dreyfus ____________ __ Nov. 23, 1943
as embodied in a hair net, it is not intended to be limited
. 2,428,071
Goldsmith __________ __ Sept. 30, 1947
to the details shown, since various modi?cations and
Goldsmith ___________ __ Oct. 3, 1950
Dietze _______________ __ July 9, 1957
from the types described above.
While the invention has ‘been illustrated and described 40
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