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Патент USA US3087330

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April 30, 1963
K. w. BAHLO
3,087,322
APPARATUS FOR SOLVENT TREATMENT OF‘ ROLLED FABRIC
Filed Oct. 1'7, 1961
3 Sheets-Sheet 1
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INVENTOR.
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Klaus W. Bahlo
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ATTORNEY
April 30, 1963
K. w. BAHLO
3,087,322
APPARATUS FOR SOLVENT TREATMENT OF ROLLED FABRIC
Filed Oct. 17, 1961
3 Sheets-Sheet 2
FIG. 3
/19A
48
37/ 61
5s
<_| 7
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INVENTOR.
Klaus W. Bahlo
ATTORNEY
April 30, 1963
K. w. BAHLO
3,087,322
APPARATUS FOR SOLVENT TREATMENT OF ROLLED FABRIC
Filed 001;. 17, 1961
FIG.H
3 Sheets—Sheet 5
United States Patent O?tice
3,087,322
Patented Apr. 30, 1963
2
1
3,087,322
APPARATUS FOR SULVENT TREATMENT 0F
ROLLED FABRIC
Klaus W. Bahia, Fair?eld, COHEL, assignor to The Ameri
can Fabrics Company, Bridgeport, Corm., a corporation
Filed Get. 17, 1961, Ser. No. 145,723
3 Claims. (Cl. 68-189)
Other objects of this invention will in part be obvious
and in part hereinafter pointed out.
In the drawings:
FIG. 1 is a longitudinal elevational view of the ex
tractor system embodying the invention with parts in
section.
FIG. 2 is a transverse sectional view taken on the line
2—2 of FIG. 1;
FIG. 3 is a partial, longitudinal sectional view of the
This invention relates to apparatus for ?uid treatment
of a roll of textile fabric in order to effect dissolution of 10 solvent inlet end of the extractor portion thereof;
FIG. 4 is an end view thereof;
soluble constituents thereof; pressure dyeing or applica
FIG. 5 is an enlarged longitudinal sectional view thereof;
tion of other liquids under pressure to such fabric roll.
FIG. 6 is an enlarged longitudinal sectional view taken
In the manufacture of laces, narrow bands of such laces
on the line 6—6 of FIG. 1;
are laterally joined together in wide web form by means
FIG. 7 is a transverse sectional view taken on the line
of solvent soluble threads. Such a wide web may be ?n 15
ished by conventional procedures such as scouring, bleach
ing, washing, dyeing and the like. Upon completing the
?nishing operations, the fabric in roll form is subjected
7-7 of FIG. 6;
FIG. 8 is a transverse sectional view taken on the line
8-8 of FIG. 1;
FIG. 9 is an end view of one of the extractors showing
and thus release the lace bands.
20 the hinged end closure thereof;
FIG. 10‘ is a top: plan view thereof;
According to known procedures, the rolled textile is
FIG. 11 is a schematic representation showing the op
placed in a cylindrical chamber with solvent admitted
eration of the extractor system; and
thereto for penetrating the ‘fabric in a radial manner in
FIG. 12 is a longitudinal sectional view of a detail of
wardly from the outer circumference thereof. However,
in such procedures, the penetration takes place at a very 25 the system.
In accordance with the instant invention, for purpose of
slow rate and may take several hours to achieve uniform
illustration, a pair of treating chambers or extractors, for
application of the solvent to all portions of the fabric
respectively containing rolled fabric to be treated to re
roll.
move the soluble constituents thereof, are arranged for
Accordingly, one object of this invention is to provide
concurrent operation or single operation.
an improved apparatus for applying solvent'to a fabric
Thus as shown in FIG. 1, the apparatus embodying the
roll in a manner to saturate all parts of the fabric roll rap
invention comprises an elongated metal jacket, generally
idly in a fraction of the time required in conventional
to a suitable solvent, so as to dissolve the joining threads
procedures.
designated at 10‘, of rectangular section, mounted on legs
11. Jacket 10 comprises parallel side plates 12, 13, a top
Furthermore, in conventional treatments of roll fabric
with solvent, the soluble threads on dissolving in the sol 35 plate 14, a bottom plate 15 and end plates 16, 17. An
outlet coupling 18 is disposed on bottom plate 15 at one
vent saturate said solvent. The saturated solvent attains
end thereof.
an increased viscosity which retards circulation thereof
Mounted in jacket 10‘ are a pair of similar extractor
and thus further impedes the overall circulation of solvent
units 19, 20, which comprise similar cylindrical chambers,
and dissolution of the soluble threads.
Accordingly, a further object of this invention is to pro 40 19A, 20A respectively, the units being arranged in verti
cally spaced relation with the opposite ends of said cham
vide apparatus of the character described, in Which circu
bers 19A, 20A projecting through jacket end plates 16, 17.
lation of solvent is achieved under conditions which avoids
Cylindrical chamber 19A is closed at one end by a plate
progressive saturation thereof by dissolved material, and
22 welded at its perimeter to the end of said chamber; and
materially facilitates uniform removal of the dissolved
45 closed at the other end by a hinged door plate 23. Ver
material.
tically spaced hinge members 24, 25 are welded to door
Still another object of this invention is to provide im
plate 23‘. Tubular butts 26‘ are Welded to the outer ends
proved procedures for applying solvent to a roll of fabric
of members 24, 25 while a ?ange 27 affixed to the end of
in a manner to circulate said solvent in a path and through
chamber 21 has welded thereto a laterally disposed mem
the fabric roll to rapidly dissolve soluble constituents of
50 ber 27A which carries a tubular butt 28 which interfits be
said fabric roll.
tween and is aligned with butts 26-. A hinge pin 29‘ inter
Another object of this invention is to provide improved
connects butts 26, 28.
Door plate 23 is notched at its perimeter as at 29A
to receive locking bolts 30* extending from ?ange 27. A
roll, said conduit including a portion for passing solvent
and another portion for passing heating medium which 55 handle 31 is centrally disposed on plate 23. A gasket 32
is disposed between the peripheral portions of ?ange 27
is to be used after the fabric has been subjected to solvent
and door plate 23‘.
action whereby residual solvent may be efficiently drawn
The chamber 19A is adapted to receive therein a roll of
off radially outward through the fabric roll for removal
fabric F mounted on a tubular winding mandrel M, whose
by suitable vacuum means.
Still another object of this invention is to provide an 60 wall is formed with closely spaced perforations P. Such
fabric F essentially comprises lace bands or strips which
improved system for treating rolled fabric with solvents
apparatus of the character described which comprises a
composite conduit adapted to extend axially of a fabric
or other liquids wherein liquid is passed cyclically in alter
native paths through the rolled fabric to achieve maxi
mum penetration thereof in minimum time intervals.
Yet another object of this invention is to provide an 65
' improved system for treating rolled fabric with solvent to
dissolve soluble constituents thereof or with other liquids
to otherwise treat the fabric and including improved heat
ing means, and vacuum means associated therewith to
have been woven together along their lateral edges by
soluble threads of cellulose acetate or other suitable ther
moplastic material which will dissolve in selected solvents,
such as acetone or the like.
An elongated conduit generally indicated at 35 is dis
posed axially of chamber 19A with one end 86 thereof
slightly spaced from door plate 23 in its closed position and
the other end generally indicated at 37 projecting through
allow for rapid removal of residual liquid in the fabric, 70 an opening 38 in end plate 22. Conduit 35 has a support
plate 39 welded thereto at end portion 37, said plate 39
after the liquid treatment of the rolled fabric is completed.
3
4
being disposed in contact with the inner surface of end
connected by a valved connection as at 75 and connector
plate 22 and bolted thereto by bolts 40, as shown in FIG. 3.
A set of four struts 41 have angle flanges 42 at their
inner ends which are bolted to end plate 22 as at 43, while
their outer ends are welded to a pair of semi-cylindrical
collars 44 which are disposed about conduit end portion
37 and clamped thereagainst by bolts 45.
64A is also connected by a line 76 to a vacuum pump
77. Connectors 63 and 62A are interconnected by a
valve connection as at 78. Connectors 65A and ‘63A
on chamber 20A are interconnected by a common line
79 which in turn is connected to a supply pump 80 by a
line ‘81 with a valve 82 therein. Pump 80 is connected
Conduit 35 comprises a central conduit portion 46 for
passing a stream of solvent such as acetone or the like.
on its intake side to a solvent supply tank 83.
The conduit 35 further includes auxiliary conduit portions
line 86 to conduit 35A of chamber 20A, and on the other
47, 48 having common wall portions 49, 50 with central
side by a line 87 to conduit 35 of chamber 19A. A line
88 including a valve 89, connects line 87 with line 81.
A cut-off valve 90 is inserted on the delivery side of pump
80.
conduit portion 46; ‘thus providing in a single integral
conduit means a central solvent passing portion and
auxiliary conduit portions on either side thereof. Central
conduit portion 46 has its side wall portions 51, 52 15
A reversible pump 85 is connected on one side by a
A solvent over?ow tank 91 is provided, being connected
formed with longitudinally spaced openings 53.
at its inlet by a line 92 containing a valve 93, to con
As shown in FIG. 6, the extreme left hand end of
nector 62A; and also being connected by a line 94 con
conduit 35 is closed by an end plate 54 welded in place.
taining a valve 95, to connector 62. The outlet side of
End portions of walls 49, 50 of the conduit are cut back
over?ow tank 91 is connected to supply tank 83 by a
as at 55, 56 and the central conduit portion 46 is closed 20 line 96. Vacuum pump 77 includes a valved air exhaust
at a point spaced from plate 54 by an end plate 57 welded
line 97 and a valve condensate line 98 terminating in a
in place. It will be apparent that auxiliary conduit por
condenser 99.
tions 147, 43 are intercommunicating vat one end thereof
The system is set in operation by ?rst exhausting air
by way of cut back portions 55, 56, for the purposes here
from the chambers 19A, 20A and all lines connected
inafter appearing.
therewth by means of vacuum pump 77 and line 76;
The projecting conduit portion 37 has an end plate 58
valves ‘75, 78 being opened. Pump 80 is then operated
secured at its periphery by welding to the ends of con
to ?ll the chambers with solvent taken from supply tank
duit portions 47, 48 and side wall portions 51, 52 to close
off said conduit portions 47, 48, while allowing central
conduit portion 46 to project through a central opening
in said plate 58. A threaded coupling member 59 is
83; valves 82, 75, 78, 90, 95 being opened; valve 89 being
closed.
After the chambers 19A, 20A have been ?lled with
solvent; as indicated by appearance of a solvent in over
welded to plate 58 to establish communication with con
?ow tank 91, valves 82, 89, 90‘, 93 and 95 are closed. ,The
duit portion 46.
The outer wall portions of conduit poritions 47, 48
pump 85 is then operated in a manner to force solvent
include built up pad portions formed with a steam inlet
60 for communication with conduit portion 47 and a
condensate outlet 61 for communication with conduit
portion 48.
The cylindrical chamber 19A is provided with T con
nectors 62, 63 at one end thereof and T connectors ‘64,
?owing under pressure, to move by way of line 87'into
conduit 35; radially outward thereof by way of openings
53 therein and openings P in mandrel M, radially out
wadly through the fabric roll F to the outer surface
thereof and then by way of connectors 62A, 64A into
chamber 20A and thence from the outer circumference of
fabric roll F radially inward thereof to the conduit 35A
65 at the other end thereof; connectors 62, 64 being on
the upper portion thereof and connectors 63, 65 being on
and thence outwardly through said conduit 35A, and back
looking at FIG. 1. Also, chamber 20A is so disposed
that its right hand end is slightly lower than its left hand
end, also looking at FIG. 1. The conduit 35A in cham
ber 28A, is similar to conduit 35 described above and
chamber 20A is provided with T connectors 62A, 63A,
64A and 65A.
The jacket 10 is provided with a pair of steam distribut
and into conduit 35A in chamber ‘20A and thence radially
outward through fabric roll F to connectors 62A, 63 and
64A, 65 into chamber 21 and then radially inward of
the fabric roll F therein to conduit 35 and outwardly there
of by way of line 87 back to pump 85. Such periodic
reversal of pump 85 insures complete removal of
to pump 85 by way of line 86.
the lower portion thereof.
In this manner, solvent is circulated in an optimum
Chamber ‘20A is similar in all respects to chamber 19A
manner to effect rapid solution of the soluble threads in
as described above. However the disposition of chamber 45 fabric rolls F. Periodically, the pump 85 may be re
19A relative to jacket 10 is such that the same is slightly
versed in its direction of operation, in which case the
lower at its left hand end, than at its right hand end,
solvent will follow a reverse path, starting with line 86
solubilized thread material in the solvent.
'
'
'
‘
ing pipes 66, 67 which extend longitudinally thereof over 55
If desired, the single chamber‘ZtlA only may be made
chamber 21 and immediately below top wall 14 and ad
operative, in which case, valves 87A, 75 and 78 are
jacent side plates 12, 13. The pipes 66, ‘67 are capped at
closed; valves ‘82, 89 and 86A are opened. Circulation
their opposite ends as at 70, and the walls thereof are
perforated at regular, longitudinal intervals, as at 71.
A T member 72 interconnects pipes 66, 67; such mem
of solvent may now be maintained by way of lines 86,
88, 81 and ‘79 to effect radial passage of solvent with
respect to the fabric roll F in chamber 20A either in
ber 72 providing means for suitable interconnection to a
wardly of outwardly thereof, as previously described.
When the solvent cycle has been completed, all solvent
To compensate for expansion and contraction, jacket
in chambers 19A, 20A may be drained by way of lines
10 is provided with expansion joints 73, 73A at the op
79, 81, 88, pump 85 and line 100 to drain tank 101.
posite ends thereof. Also, pipes 66, 67 are provided‘ with 65
Any residual solvent still contained in the fabric rolls F
telescopic expansion members 74A ?xed in end plates
is removed by admitting steam to conduits 35, 35A by
16, 17 for slidably receiving the ends of said pipes.
Way of inlets '60 thereof, thereby heating the inner por
The apparatus, as shown in FIG. 1 may be operated
tions of said fabric rolls; and by admitting steam by way
as indicated in FIG. 11. Assume that rolls of fabric F
of pipes 66, 67 in jacket 10 to heat the outer portions of
steam line, not shown.
have been mounted over conduits 35, 35A in chambers
70 said fabric rolls. The resultant solvent vapors are ex
19A, 28A respectively; the free ends of said conduits
hausted from chambers 19A, 20A by means of vacuum
being supported on removable brackets B positioned
.pump 77 and line 76; valves 75, 78 being open; valves
Within said chambers adjacent the open ends thereof,
82, 93 and 95 being closed. Such vapors are received in
and the door plates 23 are then closed.
condenser 99 by way of line 98.
As shown in FIG. 11, connectors 65 and 64A are inter 75
Condensate from conduit portion 47 will pass to con~
3,087,322
5
6
duit portion 48 by way of the communicating end por
2. Apparatus as in claim 1 wherein said auxiliary con
tions thereof, and thence by way of outlet 61, to a con
densate receiver, not shown. Condensate in jacket 10 is
drained by way of outlet 18. Pipes 66, 67 may also be
used to admit cooling water to jacket 10 to reduce the
duit means comprises a pair of conduit portions extending
longitudinally on opposite sides of said conduit, said con
duit portions being interconnected at one end thereof, one
of said conduit portions being adapted to pass steam
temperature of chambers 19A, 20A prior to starting a
new cycle of operation.
The conduits 35, 35A may be removed from their re
spective chambers 19A, 20A, by unclamping conduit end
therethrough and the other conduit portion being adapted
to pass condensate therethrough.
3. In apparatus for ?uid treatment of a roll of fabric,
a cylindrical chamber, conduit means mounted within
portions 37 through removal of struts 41 and associated 10 said chamber axially thereof, said conduit means com
prising a central conduit portion closed at one end there
collars 44; and unbolting support plate 39 from end plate
22. This allows the conduits 35, 35A to be withdrawn
of and including inlet means at the other end thereof, a
?rst auxiliary conduit portion extending along one side
through the open ends of chambers 19A, 20A when door
of said central conduit portion with a common wall there
plates 23 are in their unbolted, open position.
'It is understood that the foregoing procedure is also 15 with, a second auxiliary conduit portion extending along
applicable to various ?uid treatments of fabric in roll
form such as pressure dyeing, bleaching, scouring, steam
the other side of said central conduit portion with a com
mon wall therewith, means interconnecting said ?rst and
ing and the like, wherein the treating ?uid is rapidly
passed radially between the inner and outer cylindrical
surface portions of the fabric roll.
As various changes might be made in the embodiment
of the invention herein disclosed without departing from
the spirit thereof, it is understood that all matter herein
second auxiliary conduit portions at one end thereof,
shown or described shall be deemed illustrative and not
limiting except as set forth in the appended claims.
25
What is claimed is:
ll. Apparatus for ?uid treatment of a roll of fabric
comprising an elongated chamber for receiving said fabric
roll, a conduit extending axially thereof for mounting
said fabric roll thereabout, said conduit having perfora
tions in the wall thereof along the length thereof, con
necting means on said conduit for passing liquid into and
out of said conduit, connecting means on said chamber
for passing liquid into and out of said chamber, and pump
means for forcing liquid by way of said connecting means 35
and the perforated conduit in a path radially through said
fabric roll, said conduit including auxiliary conduit means
associated therewith for passing a heating medium there
through.
steam heating ?uid inlet means at the other end of one of
said auxiliary conduit portions, and steam condensate out
let means at the other end of the other of said auxiliary
conduit portions, said central conduit portion having Wall
portions thereof formed with longitudinally spaced per
forations.
References Cited in the ?le of this patent
UNITED STATES PATENTS
207,334
403,305
Wright ______________ __ Aug. 20, 1878
'Sutcliffe 1. ____________ __ May 14, 1889
552,638
1,131,083
'Frotscher _____________ __ Jan. 7, 1896
Rau ________________ __ Mar. 9, 1915
1,388,081
1,471,658
2,446,502
Wioland _____________ __ Aug. 16, ‘1921
Heap ________________ __ ‘Oct. 23, 1923
Wehrli ______________ __ Aug. 3, 1948
413,031
567,379
735,947
France ______________ __ May 18, 1910
Germany _____________ __ Dec. 31, 1932
Great Britain _________ .._ Aug. 31, 1955
FOREIGN PATENTS
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