EP0450339B1 - Vorrichtung zur Fixierung von Geweben - Google Patents

Vorrichtung zur Fixierung von Geweben Download PDF

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Publication number
EP0450339B1
EP0450339B1 EP19910103548 EP91103548A EP0450339B1 EP 0450339 B1 EP0450339 B1 EP 0450339B1 EP 19910103548 EP19910103548 EP 19910103548 EP 91103548 A EP91103548 A EP 91103548A EP 0450339 B1 EP0450339 B1 EP 0450339B1
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EP
European Patent Office
Prior art keywords
fabric
steam
drum
sections
water
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.)
Expired - Lifetime
Application number
EP19910103548
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English (en)
French (fr)
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EP0450339A1 (de
Inventor
Attilio Bertoldi
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Individual
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Individual
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Publication date
Priority claimed from IT19676A external-priority patent/IT1240604B/it
Priority claimed from IT02235890A external-priority patent/IT1246276B/it
Application filed by Individual filed Critical Individual
Publication of EP0450339A1 publication Critical patent/EP0450339A1/de
Application granted granted Critical
Publication of EP0450339B1 publication Critical patent/EP0450339B1/de
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Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C7/00—Heating or cooling textile fabrics
    • D06C7/02—Setting

Definitions

  • This invention relates to improvements in apparatus for fixing fabrics in piece form, for example woollen or mixed fabric, of the type comprising a vessel containing a rotary drum and means for heating an aqueous mass contained in the vessel, in which in passing from an entry channel to an exit channel the fabric piece passes over and with the drum and is subjected to a pressure greater than atmospheric, at least in the portion passing over the drum (e.g. EP-A-0 324 164).
  • An object of the present invention is to improve apparatus of the stated type in such a manner as to reduce their overall size while at the same time increasing productivity, but without any loss of fixing quality.
  • wool is formed structurally of keratin, which is a complex natural compound based on mutually bonded amino acids, the most important of which are cystine, tyrosine, serine, glutamic acid, histidine, lysine and arginine.
  • the intrinsic elasticity of wool fibre derives mainly from the cystine, which contain two sulphur atoms forming cystinic bridges. The elasticity is also due, but to a lesser extent, to other saline bonds and hydrogen bridges originating from electrostatic attraction between hydrogen atoms and oxygen atoms of carboxylic groups. To give the fibre dimensional stability (ie to reduce its intrinsic elasticity) it would therefore appear necessary to act on its structure at the said "elastic" points.
  • Cystines hydrolyze only in hot water or by the use of strongly reducing or oxidizing agents, while the other described bridges separate in the presence of steam.
  • the current art therefore uses two different machines to obtain the desired result, namely a first machine in which the fabric is treated with hot water or hot water solutions, and a second machine in which the fabric is treated with steam.
  • the invention proposes an improved machine of the type initially stated, which is able to provide the two combined actions to thus obtain the desired stabilization with both cost and equipment advantages, as will be apparent from the ensuing description.
  • the machine of the invention shown in Figures 1, 2 and 3 comprises a stainless steel vessel indicated by 1 and containing a vertical entry channel 2 and a vertical exit channel 3 for the open-width fabric piece 4. Between the two channels 2, 3 and hydraulically connected to their lower part at 5 there is a substantially closed chamber 6 of lesser height than said channels.
  • Said chamber contains a drum 7 rotated by conventional motor means, not shown, a pressure roller 8 (which presses against the drum 7 via the fabric 4, for which purpose it is for example idly mounted on the ends of levers 9 urged at their other end) and a semicircular hood or panel 10 incorporating electrical resistance elements or steam or superheated water heating tubes 12 on the side facing the drum 7, about which said panel 10 is concentrically arranged a short distance therefrom to form an interspace 11 along which the fabric 4 moves.
  • the panel 10 is substantially semicircular, with its axis of symmetry forming an angle of about 45° to the vertical.
  • the entry and exit channels 2, 3 are substantially full of water or aqueous solution, whereas its level within the chamber 6 is substantially less (indicated by Z) because the resistance elements or the like 12 create above this level a steam environment of a pressure such as to compensate this difference in the water column between the channels 2, 3 full of water (or aqueous solution) and the level Z.
  • the water level is maintained by conventional level controllers, eg comprising probe, proximity contactor, or float means, such as indicated at 13, mounted on levers 14 and acting on contacts which switch the resistance elements or other heating means 12 on and off and make up the consumed water with water entering through the pipe D (or D1 in Figure 4) and previously heated with steam.
  • level controllers eg comprising probe, proximity contactor, or float means, such as indicated at 13, mounted on levers 14 and acting on contacts which switch the resistance elements or other heating means 12 on and off and make up the consumed water with water entering through the pipe D (or D1 in Figure 4) and previously heated with steam.
  • the pressure roller 8 is located such that its pressing action on the fabric 4 is exercized substantially at the level Z to force air from the fabric, this air being discharged via known separator valves 60 which allow air but not steam to pass.
  • the valves 60 can also be controlled by the water level control means 13.
  • the inclined arrangement of the heater panel 10 means that this is partly immersed in the water even under operating conditions, where Z is the water level.
  • retention means consisting on two opposing sides of flat polytetrafluoroethylene elements 70 fixed to said channel tops by bolts 71, and on the remaining opposing sides of bent polytetrafluoroethylene elements 72 with a spring steel core 73 forming a V and fixed with bolts 74, to prevent dangerous hot water splashes.
  • the water which overflows runs into a pipe 75 leading to discharge.
  • the fabric 4 passes through the V 72.
  • heating resistance elements 25 or indirect steam or superheated water coils
  • that roller 31 close to the passageway 5 can be movably mounted, eg pivoted and suitably counterweighted (to form a kind of floating roller) or can comprise a known load cell to adjust the operation of the rollers and thus set the fabric tension to the desired value.
  • the exit channel 3 can comprise a similar arrangement, although for constructional simplicity this channel preferably comprises deflectors 40 which although not hindering the movement of the fabric prevent hot water splashing during the ascent and scalding the operator.
  • the fabric piece 4 is subjected to the action of hot water (in the channels 2, 3 and in the chamber 6 below the level Z) and to the action of steam in the chamber 6 above the level Z, preferably after squeezing by the roller 8, these actions stabilizing the treated fabric.
  • Rollers 50 guide the fabric 4 onto and from the drum below the level Z.
  • FIG. 4 and 5 uses a stainless steel vessel indicated by 1A and comprising a vertical entry channel 2A and a vertical exit channel 3A for the open-width fabric piece 4A. Between the two channels 2A, 3A and hydraulically connected to their lower part at 5A there is a substantially closed chamber 6A of lesser height than said channels.
  • Said chamber contains a drum 7A rotated by conventional motor means, not shown, a pressure roller 8A (which presses against the drum 7A via the fabric 4A, for which purpose it is for example idly mounted on the ends of levers 9A counterweighted at their other end) and an arched hood or panel 10 of circular arc shape incorporating electrical resistance elements or steam or superheated water heating tubes 12A on the side facing the drum 7A, about which said panel 10A is concentrically arranged a short distance therefrom to form an interspace 11A along which the fabric 4A moves.
  • the panel 10A extends through an angle exceeding 180°, with its axis of symmetry forming an angle of about 60° to the vertical.
  • the entry and exit channels comprise three parallel sections 2A1, 2A2, 2A3 and 3A1, 3A2, 3A3 arranged in parallel and traversed in opposite directions by the fabric 4A.
  • the fabric 4A is transferred from one section to the next by motorized rollers 101, 102 and rollers 31A.
  • motorized rollers 101, 102 and rollers 31A can be mounted movable, eg pivoted and suitably counterweighted (to form a kind of floating roller) or can comprise a known load cell to adjust the operation of the rollers 101, 102 and thus set the fabric tension to the desired value.
  • the sections 2A1 and 3A1 are partly occupied, preferably in their upper part, by a series of deflectors 40A which while not impeding the movement of the fabric 4A prevent liquid splashing outwards.
  • Heating means 103 can be provided in the bottom of these sections.
  • the sections 2A2 and 3A2 comprise spaced-apart parallel facing pairs of radiant panels 104, 105 between which the fabric 4 passes.
  • further heating means 103 and a conventional floating roller 104 In the lower part of these sections there are also provided further heating means 103 and a conventional floating roller 104, and in the top of the section 2A2 there are provided conventional screw wideners 105, the purpose of which is to keep the fabric widened.
  • spaced-apart parallel facing pairs of radiant panels 106, 107 In the top of the section 3A3 there are provided conventional screw wideners 105A identical to the said wideners 105.
  • further heating means are provided in the bottom of the sections 2A3 and 3A3.
  • a deviation roller 108 In the chamber 6A upstream of the drum 7A there are provided in succession a deviation roller 108, a conventional motorized toothed roller 109, a further deviation roller 110 and a pair of conventional selvedge stretching plates 111, downstream of the drum there being provided in succession a deviation roller 112 and a floating roller 113.
  • the chamber 6A is upperly connected to a vessel or chamber 114.
  • a water/air separator valve 115 is provided at the vessel, at a level higher than the sections 2A1 and 3A1. The separated water is recovered and fed into the sections 2A1 and 3A1.
  • the vessel 114 is connected to a safety pressure switch 116 which discharges excess overpressure.
  • the fabric 4A is then led between a pair of squeezing rollers 121 pressed against each other.
  • the fabric is then passed through a vessel 121 containing water at ambient temperature, in which it undergoes thermal shock.
  • the fabric then leaves the apparatus under the control of a group of rollers 122.
  • the entry and exit sections 2A1 and 3A1 are substantially full of water or aqueous solution, whereas its level in the other sections and in the chamber 6A is substantially less (indicated by Z) because the resistance elements or similar heating means 104, 105, 12A etc. create above this level a steam environment of a pressure such as to compensate this difference in the water column between the sections 2A1 and 3A1 full of water (or aqueous solution) and the level 7.
  • the inclined arrangement of the heater panel 10A means that this is partly immersed in the water even during operation, where Z is the water level.
  • the fabric is firstly inserted and the machine then completely filled with the aqueous treatment liquid, eg water, after which the heating means are operated with consequent generation of steam which forces water from the respective regions until the level Z is reached, when the level control means control the heating means and the feed of make-up liquid. If the level rises these control means again activate the heating means. If the level falls they add treatment liquid, and so on.
  • the aqueous treatment liquid eg water
  • the fabric piece 4A is subjected to the alternate action of hot water (in the channels 2A, 3A and in the chamber 6A below the level Z) and to the action of steam in the sections 2A2, 2A3, 3A2 and 3A3 and in the chamber 6A above the level Z.
  • the liquid level Z is equal in the sections 2A2, 2A3, 3A2 and 3A3 and in the chamber 6A, or in other words the pressures are equal in the regions occupied by steam.
  • the steam pressure in the chamber 6A exceed that in said sections, as indicated by the liquid levels Z1, Z2, Z3.
  • the steam pressure in the chamber 6A is equal to the sum of the two heights h and H (the first measured between the levels Z4 and Z3 and the second between the levels Z2 and Z1,).
  • the common points of the sections 2A2, 2A3 and 3A3, 3A2 are connected to a pipe 200, 201, the two pipes opening into a chamber 202 which is connected to a pressure control valve, the chamber 6A being upperly connected to a vessel 204 connected to a further pressure control valve 205.
  • valves in question discharge to atmosphere any pressure higher than a determined threshold value, which in the case of the valve 203 is h and in the case of the valve 204 is H + h .
  • a determined threshold value which in the case of the valve 203 is h and in the case of the valve 204 is H + h .
  • the machine is filled with the aqueous treatment liquid, for example water, and the heating means 104, 105, 106, 107 are operated.
  • aqueous treatment liquid for example water
  • the steam displaces the liquid from the sections 2A2, 2A3 and 3A2, 3A3 to the level Z3, the valve 203 then operating to prevent further fall in level.
  • a part of the displaced liquid leaves the sections 2A1 and 3A1 and the other part flows into the vessel 204, which is of sufficient capacity.
  • the heating means 12A in the chamber 6A are then operated. Steam forms until liquid is forced from the chamber 6A to the level Z1, which is maintained by the valve 205.
  • the displaced liquid enters the sections 2A3 and 3A3 which attain the level Z2. The represented conditions are thus attained.
  • Liquid is lost during operation (for example to the fabric and in the form of steam through the valves 203, 205).
  • known means for controlling the levels Z1 and Z3 are provided to cause adequately heated make-up liquid to flow into the chamber 6A (the liquid must be pressurized) via a valve K and into the tops of the sections 2A1 and 3A1.
  • a single pressure control valve 301 is used connected to a common point 300 connected to the vessel 114 and to the tops of the sections 2A2, 2A3 and 3A2, 3A3.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)

Claims (14)

  1. Verbesserungen an einer Vorrichtung zum Fixieren von Geweben, z.B. von Woll- oder Mischgewebe, des Typs, der einen Behälter (6, 6A) aufweist, der eine Drehtrommel (7, 7A) und Einrichtungen (12, 12A) zum Erwärmen einer in dem Behälter enthaltenen wässrigen Masse enthält, wobei das Gewebestück (4, 4A) bei der Passage von einem Eintrittskanal (2, 2A) zu einem Austrittskanal (3, 3A) mit und über die Trommel (7, 7A) gelangt und einem Druck, der größer als atmosphärischer Druck ist, ausgesetzt wird, wenigstens in dem über die Trommel (7, 7A) laufenden Bereich, dadurch gekennzeichnet, daß die Trommel (7, 7A) im Betrieb nur teilweise in die wässrige Masse eingetaucht ist, mit dem Ergebnis, daß ein Teil von ihr in einer Dampfumgebung liegt, wobei das Gewebestück (4, 4A) von der wässrigen Masse in die Dampfumgebung gelangt und dann beim Bewegen über die Trommel (7, 7A) zu der wässrigen Masse zurückkehrt.
  2. Verbesserungen, wie in Anspruch 1 beansprucht, dadurch gekennzeichnet, daß der Pegel (Z) der wässrigen Masse durch bekannte Steuereinrichtungen (13) gesteuert wird.
  3. Verbesserungen, wie in Anspruch 2 beansprucht, dadurch gekennzeichnet, daß die Steuereinrichtungen (13) auf die Erwärmungseinrichtungen (12, 12A) und auf die Zufuhr von erwärmtem Wasser (D) und möglicherweise auf den Luftauslaß (60) wirken.
  4. Verbesserungen, wie in einem oder mehreren der vorhergehenden Ansprüche beansprucht, dadurch gekennzeichnet, daß wenigstens der Eintrittskanal (2) mit Antriebsrollen (30) für das Gewebe (4) versehen ist, die auf solch eine Weise angeordnet sind, daß sie das Gewebe zwingen, einem Zick-Zack-Weg zu folgen, vorzugsweise von stetig nach unten geneigten Abschnitten.
  5. Verbesserungen, wie in Anspruch 4 beansprucht, dadurch gekennzeichnet, daß in dem Eintrittskanal (2, 2A) Einrichtungen (31, 31A) zum Steuern der Spannung in dem Gewebe (4, 4A) vorgesehen sind.
  6. Verbesserungen, wie in einem oder mehreren der vorhergehenden Ansprüche beansprucht, dadurch gekennzeichnet, daß die Erwärmungseinrichtungen (12, 12A) die Trommel (7, 7A) im wesentlichen konzentrisch umgeben und um die Vertikale in einem Maß unsymmetrisch sind, daß im Betrieb ein Teil von ihnen in die wässrige Masse eingetaucht bleibt.
  7. Verbesserungen, wie in einem oder mehreren der vorhergehenden Ansprüche beansprucht, gekennzeichnet durch eine Druckrolle (8, 8A), die auf das um die Trommel (7, 7A) liegende Gewebe (4, 4A) wirkt.
  8. Verbesserungen, wie in einem oder mehreren der vorhergehenden Ansprüche beansprucht, dadurch gekennzeichnet, daß die Kanäle (2, 3, 2A, 3A) über einen Durchgang (5, 5A), der im wesentlichen an ihrer Basis angeordnet ist, hydraulisch mit dem Behälter (6, 6A) verbunden sind.
  9. Verbesserungen, wie in einem oder mehreren der vorhergehenden Ansprüche beansprucht, gekennzeichnet durch Einrichtungen (70, 73) zum Verhindern, daß heißes Wasser und Dampf beim Ansteigen die Eintritts- und Austrittskanäle (2, 3) zu heftig verläßt, mit der Gefahr, die Betriebsperson zu verbrühen.
  10. Verbesserungen, wie in Anspruch 9 beansprucht, dadurch gekennzeichnet, daß die Einrichtungen (70, 73) mit Gleitdichtungen aus Materialien gebildet sind, die in feuchten Umgebungen einen hohen Gleitkoeffizient haben.
  11. Verbesserungen, wie in einem oder mehreren der vorhergehenden Ansprüche beansprucht, dadurch gekennzeichnet, daß die Eintritts- und Austrittskanäle (2A, 3A) aus wenigstens zwei Abschnitten (2A1, 2A2, 2A3; 3A1, 3A2, 3A3) gebildet sind, die von dem Gewebe in entgegengesetzten Richtungen durchquert werden, wobei der eine (2A1, 3A1) für Wasser ist und mit Ablenkeinrichtungen versehen ist und der andere (2A2, 2A3; 3A2, 3A3) für Dampf ist und mit Erwärmungseinrichtungen (104, 105; 106, 107) zum Erzeugen von Dampf darin versehen ist.
  12. Verbesserungen, wie in Anspruch 11 beansprucht, dadurch gekennzeichnet, daß nach dem Austrittskanal (3A) ein Behälter (121) vorgesehen ist, der Wasser bei einer Temperatur enthält, die geringer ist als die der in der Kammer (6A) enthaltenen Flüssigkeit, um das Gewebe (4) einem thermischen Schock auszusetzen.
  13. Verbesserungen, wie in Anspruch 11 beansprucht, gekennzeichnet durch Einrichtungen (wie 30), um den Druck, der auf die wässrige Behandlungsflüssigkeit in der Dampfumgebung der Kammer (6A) wirkt, und den Druck in den Dampfabschnitten (2A2, 2A3; 3A2, 3A3) gleich zu halten.
  14. Verbesserungen, wie in Anspruch 11 beansprucht, gekennzeichnet durch Einrichtungen (wie 203, 205) zum Erhalten von verschiedenen Drücken auf die wässrige Behandlungsflüssigkeit in der Dampfumgebung der Kammer (6A) und in den Dampfabschnitten (2A2, 2A3; 3A2, 3A3).
EP19910103548 1990-03-14 1991-03-08 Vorrichtung zur Fixierung von Geweben Expired - Lifetime EP0450339B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IT19676A IT1240604B (it) 1990-03-14 1990-03-14 Perfezionamenti agli apparecchi per il fissaggio dei tessuti
IT1967690 1990-03-14
IT02235890A IT1246276B (it) 1990-12-12 1990-12-12 Perfezionamenti agli apparecchi per il fissaggio di tessuti.
IT2235890 1990-12-12

Publications (2)

Publication Number Publication Date
EP0450339A1 EP0450339A1 (de) 1991-10-09
EP0450339B1 true EP0450339B1 (de) 1995-05-10

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EP19910103548 Expired - Lifetime EP0450339B1 (de) 1990-03-14 1991-03-08 Vorrichtung zur Fixierung von Geweben

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EP (1) EP0450339B1 (de)
DE (1) DE69109533T2 (de)
ES (1) ES2073053T3 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2328956A (en) * 1997-09-05 1999-03-10 Scapa Group Plc Heat setting apparatus
CN113152018B (zh) * 2021-03-12 2023-03-28 张凤英 一种碳化硅基体碳纤维复合材料人工肋骨处理装置
CN113417104B (zh) * 2021-05-24 2023-05-26 安国市中建无纺布有限公司 一种基于无纺布后整理的智能烘干定型***

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR75710E (fr) * 1958-10-22 1961-08-04 Perfectionnement aux traitements thermiques à pression élevée
CH433172A (de) * 1964-03-13 1967-04-15 Establishment For Automation Vorrichtung zum Nass- und Nachbehandeln von Textilgütern
DE1635141C3 (de) * 1967-08-05 1980-08-07 Hans F. 7120 Bietigheim- Bissingen Arendt Verfahren zur krumpffreien Ausrüstung von Textilien, die zumindest einen Anteil natürlicher Fasern enthalten, und Trommeltrockner zur Durchführung des Verfahrens
IT1073053B (it) * 1976-10-15 1985-04-13 Bertoldi Attilio Apparecchio per il fissaggio continuo di tessuti di lana o misti
IT1218051B (it) * 1988-01-12 1990-04-12 Attilio Bertoldi Apparecchio per il fissaggio in continuo,ad umido,di tessuti di lana,mista lana,di materiali sintetici e di cotone

Also Published As

Publication number Publication date
EP0450339A1 (de) 1991-10-09
DE69109533T2 (de) 1996-01-04
ES2073053T3 (es) 1995-08-01
DE69109533D1 (de) 1995-06-14

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