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Патент USA US2119163

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May 31, 1938.
o. HERRMANN ET AL
ROLL OF ADHESIVE STRIP
Filed June 18
I
19734
2,119,163
2,119,163
Patented Mi, 31, 1938
PATENT OFFlCE
' UNITED STATES
_
2,119,163
'
ROLL or ADHESIVE s'rmr
Otto Hermann,‘ Wiesbaden, and Philipp Miiller, .
'
Wiesbaden-Sonneberg, Germany, asslgnors to
Kalle & Co. Aktiengesellschaft, Wiesbaden
Biebrich, Germany
Application June 18, 1934, ‘Serial No.’ 731,176
In Germany July 15, 1933
6 Claims.
(01. 206-59)‘
I The 'present'invention relates to vrolls of _adhe-‘
sive strip.
_‘ -
-
-
"
f-Rolls of adhesive strip consisting of a base of
_
with other material‘or sheets of paper provided
with a moistureproof coating of lacquer or
varnish.
v
.
'
' The drawing shows more clearly in what man
cellulose hydrate in sheet form, or other cellu
lose .derivative sheets more or less sensitive ,to
moisture, such as, for example, acetyl'c'ellulose,
and. a plastic adhesive coating adapted to remain
her the invention is to be performed without lim- 5
iting the invention to the particular form.
Fig. 1 shows a vertical section of the roll. It
' constantly sticky, such as, for example, a coating
shows the core a, the adhesive strip b wound '
containing caoutchouc, are known.
Adhesive
strips of this kind are manufactured in trans- '
parent, non-transparent, colourless and coloured
form. The strips which are marketed in diiferent
widths and in comparatively long lengths are
wound in numerous layers around a rimless core
.15 which is generally hollow and usually consists of
cardboard. ‘The individual layers are wound
tightly upon one another in order to ensure that‘
the strip may be satisfactorily drawn oil and that
the roll may present a neat appearance. The
20 known tightly wound rolls of relatively narrow
adhesive strip exhibit, however, the defect that
around the core and the protecting foils’ 'c.
Fig. 2 shows a plan view of the roll.
10
The protecting disks may be very thin, for
example only .02 to .03 mm. in thickness, and may
be in the form of circular foils'which, if desired,
may be stamped out with an opening correspond
ing to that of the core of the roll, and which 15
preferably only project slightly beyond the end
surfaces of the roll of adhesive strip proper.
They are brought into as intimate contact as
possible ‘with the said endv surfaces by pressi/
them thereonto. The small degree of adherence 20
exhibited by the roll at the end surfaces gener
when they are stored for a considerable time they
ally suilices for causing the protecting foils to
become displaced in'parts laterally away from
adhere.
The result obtained by the use of the protect
ing foils is not limited only to the protection of 25
the rolls from lateral displacement during the
period of storage, inasmuch as the said foils also
the core so that the end faces of the roll are
25 no longer ?at but are of an irregular funnel-like
shape. The present invention relates to means
suitable for avoiding this disadvantage.
We have found that the aforesaid deformation
prevent contamination which could otherwise
which renders the rolls unsuitable for use in . easily occur in consequence of the slight adhe
30 unrolling apparatus and, moreover, causes an siveness at the end surfaces, and also facilitates 30
unattractive appearance can be avoided by com ' the packing of the- rolls.
It has also been found that the effect of the
pletely covering up the 'end faces of the rolls to
moistureproof closure obtained by means of the ,
the exclusion of air with protecting disks bear
ing tightly on ‘the end faces and‘made of matem protecting foils can be improved by providing
35 rial which is substantially impermeable to at ' that the core upon which the adhesive strip is 35
mospheric moisture. The protecting disks which wound is likewise impermeable to atmospheric
are of substantially the same size as the sides of moisture. The said core is generally made of
the rollvconsist of thin foil material, which, in‘ cardboard and the impermeability to moisture
is obtained in the simplest way by impregnating
addition to possessing impermeability to mois
40 ture, is also as tough and flexible as possible and
is of such a nature that no ?bres can be de
tached from its surfaces, inasmuch as otherwise
a satisfactory complete withdrawal of the pro
tecting foils from the somewhat adhesive end
45 faces of the roll vwould no longer be possible.
Amongst other materials aluminium, foils of small
thickness (about .05 of a millimetre) or other
foils having a metallic surface are appropriate.
- It is, however, most advantageous to employ cel
50 lulose hydrate in sheet form, in view of its me
chanical properties, the said cellulose hydrate
being provided in known manner with a coating
of lacquer or varnish, which is of a kind particu
larly impermeable to atmospheric moisture. Also
55 metal foils can be used, which are laminated
it with wax and the like. It will, of course, be 49
understood that the desired result can also be
obtained in other ways, for example, by lacquer
ing or varnishing, or. by the application of a foil
or sheet, which is impermeable to moisture, to
the core, or again by the employment of a core 45 >
which is made of a material which is impermea
ble to moisture.
We claim:
,
'
-
1. A roll of adhesive strip, comprising a strip
of cellulose derivative sensitive to moisture coated
with plastic adhesive material and wound in
layers, the strip being relatively narrow and the
layers being relatively numerous so that the
roll is subject to deformation under the in
?uence of the moisture in air, and thin ?exiblt 5°
2
2,119,108
detachable foil disks of substantially the same
sizeasthe sides ottherolladhering tothe edges
of said layers and completely covering thesame
to the exclusion of air, which disks have a sur
face free from ?bres and are substantially im
permeable to moisture.
'
2. A roll of adhesive strip, comprising a core,
a strip of cellulose derivative sensitive to mois
ture ‘coated with plastic adhesive material and
10' wound in layers around the core, the strip being
the core. the strip being relatively narrow and
the layers being relatively numerous so that the
roll is subject to deformation under the in?uence
oi’ the moisture in air, and thin detachable foil
disks oi’ substantially the same size as the sides .5
of the roll adhering to the edges of said layers ‘
and completely covering the same to the exclu
sion of air, which disks consist of sheet cellulose
hydrate coated with a moisture-proof varnish.
5. A roll of adhesive strip. comprising a core, 10
a strip of cellulose hydrate coated with plastic
adhesive material and wound in layers around
tion under the in?uence oi the moisture in air. the core, the strip being relatively narrow and
the layers being relatively numerous so that the
and thin ?exible detachable foil disks of sub
stantially the same size as the sides of the roll roll is subject to deformation under the in?uence ~15
adhering to the edges of said layers and com-‘ oi’ the moisture in air, and thin detachable metal
.pletely covering the same to the exclusion of air, toil disks of substantially the same size as the
which disks have a surface free from ?bres and sides of‘the roll adhering to the edges of said
layers and completely covering the’ same to the
are substantially impermeable to moisture.
3. A roll of adhesive strip, comprising a core, exclusion 01' air.
.
'
a strip of cellulose hydrate coated with plastic
_ 6. A roll of adhesive strip, comprising a core,
adhesive material and wound in layers around a strip of cellulose hydrate coated with plastic
the core, the strip being relatively narrow and adhesive material and wound in layers around
the layers being relatively numerous so that the the core, the strip being relatively narrow and '25
25 roll is subject to deformation under the in?uence the layers being relatively numerous so that the
of the moisture in air, and thin ?exible detach
roll is subject to deformation under the in?uence
able foil disks of substantially the same size as of the moisture in air, and thin detachable metal
the sides 01' the roll adhering to the edges of said
layers and completely covering the'sam'e to the foil disks of substantially the same size as the
30 exclusion of air, which disks have a surface free sides of the roll adhering to the edges of said 30
from ?bres and are substantially impermeable to layers‘ and completely covering the same to the
exclusion 01' air, which disks are laminated with
4. A roll of adhesive strip, comprising a core, other material.
relatively narrow and the layers beingrelatively
, numerous so that the roll is subject to deforma
moisture.
35
‘
_
_a strip of cellulose hydrate coated with plastic
adhesive material and wound in layers around
orrro.
‘PHILIP? uiium
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