EP0555729A1 - Installation de lavage au large de tissus en déplacement - Google Patents

Installation de lavage au large de tissus en déplacement Download PDF

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Publication number
EP0555729A1
EP0555729A1 EP93101565A EP93101565A EP0555729A1 EP 0555729 A1 EP0555729 A1 EP 0555729A1 EP 93101565 A EP93101565 A EP 93101565A EP 93101565 A EP93101565 A EP 93101565A EP 0555729 A1 EP0555729 A1 EP 0555729A1
Authority
EP
European Patent Office
Prior art keywords
fabric
rollers
idle
roller
presser
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP93101565A
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German (de)
English (en)
Inventor
Attilio Bertoldi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0555729A1 publication Critical patent/EP0555729A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B5/00—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating
    • D06B5/02—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through moving materials of indefinite length
    • D06B5/08—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through moving materials of indefinite length through fabrics

Definitions

  • This invention relates to a device for the wet treatment of fabrics in open width, in particular for their scouring.
  • the fabrics are preferably but not exclusively of wool, mixed wool or cotton.
  • Apparatus have been known for some time for the wet treatment of fabrics in open width, comprising a tank containing treatment liquids, means for spraying these latter onto the fabric, means for mangling the fabric (in the present context the term "mangling" means the passage of the fabric through presser means to eliminate at least part of its wetting liquid) and means for drawing the treatment liquid through the fabric.
  • each of said means requires an independent circuit for conveying and collecting the treatment liquids, plus operation control circuits. This results in high energy consumption and considerable usage of treatment liquids.
  • An object of the present invention is to provide a device of small overall size and of simple and reliable operation which is able to effect the required treatments within times which are equal to if not less than the times employed by traditional apparatus.
  • a further object is to provide a device of the aforesaid type which reduces both energy consumption and the liquid quantity used.
  • the device comprises a structure 1 with which there are associated, starting from its entry A and terminating with its exit B, a first pair of rollers 2 for pressing and driving the fabric 3 to be treated, a first inclined idle roller bank 4 for supporting and counteracting the fabric, a conventional widening and centering member 5 for the fabric 3, a second pair 6 of presser and drive rollers 6, a second inclined roller bad 7 for wetting/mangling and driving the fabric, a first and a second tank (9, 10) for collecting the treatment liquid, for example water, and a plurality of idle tensioning and guide rollers 11A, B, C, D for the fabric 3.
  • Said rollers, roller banks and tanks all have a width at least equal to the maximum width of the fabric to be treated.
  • the tanks are separated by a wall 35 and are arranged at the base of the the structure 1 of the device according to the invention. At the top of the wall 35 there is a passage duct or weir 12 which connects together the two tanks.
  • the pump connected to the tank 10 transfers the liquid contained in it to another fabric treatment device (not shown) positioned upstream, whereas the pump connected to the tank 9 transfers the liquid contained in it to a plurality of nozzles 15 (of which only there are shown in the figures) positioned in proximity to the upper part 16A of the inclined roller bank 7.
  • the tank 9 is closed upperly and is connected via a duct 17 to the inclined lower wall 18 of the suction side 19 of a turbine 8 driven by a motor, not shown.
  • the tank 10 is upperly open to receive the liquid originating from the first mangling rollers 2, plus the liquid leaving a duct 20 connected to the delivery side 21 of the turbine 8, and the liquid originating from the idle roller bank 4 against which the fabric rests.
  • the first rollers 2 for driving and mangling the fabric 3 leaving the tank 10 are associated in usual manner with the support structure in an intermediate position between the tank 10 and the first roller bank 4.
  • the rollers 2, which are of equal size, comprise an idle roller 2A, and a motorized roller 2B connected in conventional manner to a usual motor, for example an electric motor (not shown), whereas the idle roller is elastically and adjustably urged against the motorized roller in any known manner.
  • the first roller bank 4 comprises a plurality of idle rollers 4A of equal size (eleven are shown in the example) associated with the device structure 1.
  • rollers 4A are arranged spaced apart one above another with their axes of rotation mutually parallel and contained in a single plane inclined to the vertical, the roller bank being positioned opposite the delivery mouth 21 of the turbine 8.
  • the fabric widening and centering member 5 positioned above the first roller bank 4 is of usual type known to the expert of the art, for example of the type comprising a staved roller 5A and a usual sensor 5B for controlling said staved roller 5A on the basis of measured data.
  • the second pair of presser and drive rollers 6 for the fabric 3 is positioned above the turbine 8 substantially at the same height as the centering member and comprises a first motorized roller 6A and an idle roller 6B which is elastically urged adjustably against the motorized roller. Below these latter there is provided a funnel means 23 connected to the suction side 19 and arranged to collect the liquid squeezed from the fabric 3.
  • the device of the invention also comprises a conventional floating potentiometric roller 24 arranged to feed a signal to a control member (not shown but of conventional type) for the motors associated with the motorized rollers of the device in order to synchronize the movement of the two presser rollers 6A and 2B and the movement of the motorized rollers of the second roller bank 7.
  • the second roller bank 7 is positioned between the tank 9 and the second pair of rollers 6 and is inclined along the axis R so as to face the suction mouth 19 of the turbine 8.
  • said roller bank 7 comprises a first group of synchronously rotating motorized rollers 25 (seven in the illustrated example), a second group of idle rollers 26 (also seven in the example) overlying and cooperating with the motorized rollers 25 to mangle the fabric, and a third group of idle rollers 27 (nine in the example) for supporting and guiding the fabric and interposed between one motorized roller and the next but spaced therefrom.
  • rollers of each of the three said groups are spaced apart with their axes of rotation mutually parallel.
  • the axes of rotation of the rollers of the three groups lie in three different planes inclined in the same direction as the axis R and parallel to each other.
  • the motorized rollers 25 and the interposed support rollers 27 are associated in conventional manner with the support structure 1 of the device according to the invention.
  • the upper group of mangling rollers 26, indicated by 16A in Figure 1, is supported in a frame 28A connected to a connecting rod 28, the remaining group of rollers 26 (indicated by 16B) being mounted in a second frame 29A connected to a connecting rod 29.
  • Each of the frames 28A, 29A has one end 30, 31 pivoted to the structure 1 of the device according to the invention, their other end being pivoted, at a point 32 common to the two connecting rods 28, 29, to the rod of a cylinder-piston unit 34, for example of pneumatic type.
  • the cylinder-piston unit 34 is used to control the pressure between the rollers 26 and the motorized rollers 25, in such a manner as to be able to vary it on the basis of the desired working conditions.
  • a plurality of spray nozzles 15 and 33 are associated with the roller bench 7, they being distributed over the entire length of the rollers 26 (only six rollers are shown in the figure).
  • These spray nozzles are positioned so that the water jet emitted by them is directed into the space between one roller 26 and the next.
  • Side walls (not shown but of conventional type) are provided in proximity to the lateral ends of the idle rollers 26 and between one such roller and the next, to limit the escape of the water sprayed by the nozzles 15, 33 from the sides of the roller bank 7.
  • the side walls are associated with movable support elements so that the distance of said side walls from the edges of the fabric can be adjusted as the fabric width varies.
  • the spray nozzles 15 are connected to the tank 9 via the pump 14 as stated, whereas the spray nozzles 33 are connected to a different conventional feed circuit (not shown) associated for example with another fabric treatment device (not shown) positioned downstream and arranged to feed the members 33 with a cleaner treatment liquid than that contained in the tank 9.
  • the turbine 8 is of usual type and comprises a suction mouth 19 and a delivery mouth 21, which have an aperture size such as to embrace the roller bank 7 and the roller bank 4 respectively.
  • the device of the invention operates as follows.
  • the fabric has firstly to be inserted into the device by passing it around the idle guide rollers 11A, 11B, between the first pair of presser and drive rollers 2, along the first roller bank 4, around the centering member 5, around the guide rollers 11C, between the second pair of rollers 6 and between the presser rollers 25, 26 of the second roller bank 7.
  • the tank 10 is then filled with the treatment liquid, for example water.
  • the treatment liquid for example water.
  • the motors connected to the motorized rollers 2B, 6A and 25 are then operated to advance the fabric through the various members of the device.
  • said motors are mutually synchronized by a conventional controller which receives signals relative to the correct movement of the fabric from the floating potentiometric roller 24.
  • the fabric 3 guided by the idle rollers 11A and 11B is firstly immersed in the tank 10 and then in passing between the two rollers 2A, B is mangled to eliminate the water contained in it.
  • the fabric is then again wetted by the jet of water and air projected by the delivery mouth 21 of the turbine 8 onto that portion of fabric resting against the inclined first roller bank 4 (the water feed to the turbine is described hereinafter).
  • the wet fabric then passes over the potentiometric roller 24 to reach the centering-widening member 5 where in the usual manner, by means of the measurements of the sensor 5B and the possible movement of the staves of the roller 5A, the fabric is correctly and uniformly widened out, removing the folds.
  • the fabric then enters the second roller bank 7 where it is subjected to a succession of scouring and mangling operations.
  • the spray nozzles 15 and 33 wet the fabric along that portion between one pair of cooperating presser rollers 25, 26 and the next (see arrows S), while at the same time the water is compelled to pass through the fabric by the action of the turbine 8 on the suction mouth 19.
  • the idle rollers 27 are spaced apart from the pairs of presser rollers 25, 26 to enable the water to be drawn from the fabric.
  • the water which passes through the fabric is partly conveyed into the turbine 8 (see arrows N) and then projected via the mouth 21 against the first roller bank 4, and partly falls into the tank 9 (see arrows M).
  • the spray nozzles 15 are fed with the water contained in the tank 9, whereas the nozzles 33 are fed with water which is not recycled and is hence cleaner, it originating from a different circuit (not shown).
  • the device also results in an appreciable saving in consumption of treatment liquid, which is continuously recycled, excluding the percentage which overflows from the tank 9 to the tank 10 and is then fed upstream by the pump 13 when operating continuously.
  • the fabric can be fed to the machine either continuously or discontinuously according to whether the device forms part of a fabric treatment chain comprising several devices, or operates in an isolated manner, ie with the fabric being recycled as shown by the dashed line T.
  • the direction of advancement of the fabric can be reversed relative to that indicated, if more than one fabric scouring cycle is necessary.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
EP93101565A 1992-02-12 1993-02-02 Installation de lavage au large de tissus en déplacement Withdrawn EP0555729A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI920291 1992-02-12
ITMI920291A IT1254440B (it) 1992-02-12 1992-02-12 Dispositivo per il trattamento di tessuti in largo durante la loro lavorazione in particolare per il loro lavaggio

Publications (1)

Publication Number Publication Date
EP0555729A1 true EP0555729A1 (fr) 1993-08-18

Family

ID=11361923

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93101565A Withdrawn EP0555729A1 (fr) 1992-02-12 1993-02-02 Installation de lavage au large de tissus en déplacement

Country Status (2)

Country Link
EP (1) EP0555729A1 (fr)
IT (1) IT1254440B (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1723514A (en) * 1928-08-03 1929-08-06 Klein Weiner & Bell Apparatus for cleaning fabrics
FR1453340A (fr) * 1964-07-01 1966-06-03 Procédé pour le traitement en continu de textiles en général et spécialement des tissus, par des liquides
US3475927A (en) * 1966-09-06 1969-11-04 Attilio Bertoldi Fabric treating apparatus
GB1189568A (en) * 1967-09-27 1970-04-29 Bruckner Trockentechnik Komman A Device for the Continuous Treatment of a Fabric Web with Liquid.
DE2543524A1 (de) * 1975-09-30 1977-04-07 Hoechst Ag Vorrichtung zum auftragen von praeparationen auf warenbahnen
EP0230093A2 (fr) * 1986-01-14 1987-07-29 Hiroshi Hikosaka Traitement en continu de tissu sous tension
EP0325789A1 (fr) * 1988-01-28 1989-08-02 Attilio Bertoldi Machine à tambour rotatif pour le traitement au mouillé de tissus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1723514A (en) * 1928-08-03 1929-08-06 Klein Weiner & Bell Apparatus for cleaning fabrics
FR1453340A (fr) * 1964-07-01 1966-06-03 Procédé pour le traitement en continu de textiles en général et spécialement des tissus, par des liquides
US3475927A (en) * 1966-09-06 1969-11-04 Attilio Bertoldi Fabric treating apparatus
GB1189568A (en) * 1967-09-27 1970-04-29 Bruckner Trockentechnik Komman A Device for the Continuous Treatment of a Fabric Web with Liquid.
DE2543524A1 (de) * 1975-09-30 1977-04-07 Hoechst Ag Vorrichtung zum auftragen von praeparationen auf warenbahnen
EP0230093A2 (fr) * 1986-01-14 1987-07-29 Hiroshi Hikosaka Traitement en continu de tissu sous tension
EP0325789A1 (fr) * 1988-01-28 1989-08-02 Attilio Bertoldi Machine à tambour rotatif pour le traitement au mouillé de tissus

Also Published As

Publication number Publication date
ITMI920291A1 (it) 1993-08-12
IT1254440B (it) 1995-09-25
ITMI920291A0 (it) 1992-02-12

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