EP1277871A1 - Method and device for decatising a fabric - Google Patents

Method and device for decatising a fabric Download PDF

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Publication number
EP1277871A1
EP1277871A1 EP02015777A EP02015777A EP1277871A1 EP 1277871 A1 EP1277871 A1 EP 1277871A1 EP 02015777 A EP02015777 A EP 02015777A EP 02015777 A EP02015777 A EP 02015777A EP 1277871 A1 EP1277871 A1 EP 1277871A1
Authority
EP
European Patent Office
Prior art keywords
fabric
sub
pieces
chamber
sealed chamber
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Withdrawn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
EP02015777A
Other languages
German (de)
English (en)
French (fr)
Inventor
Roberto Franchetti
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.)
Lafer SpA
Original Assignee
Lafer SpA
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 Lafer SpA filed Critical Lafer SpA
Publication of EP1277871A1 publication Critical patent/EP1277871A1/en
Withdrawn legal-status Critical Current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
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C15/00—Calendering, pressing, ironing, glossing or glazing textile fabrics
    • D06C15/06—Calendering, pressing, ironing, glossing or glazing textile fabrics between rollers and co-operating moving surfaces formed of flexible material, e.g. bands
    • 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
    • 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
    • D06C2700/00—Finishing or decoration of textile materials, except for bleaching, dyeing, printing, mercerising, washing or fulling
    • D06C2700/13—Steaming or decatising of fabrics or yarns

Definitions

  • the invention concerns a method and device for the décatissage of a fabric.
  • the fabric is subjected to a semi-continuous treatment under pressure inside a steam chamber, said fabric being transported in a sandwich between two sub-pieces made of material suitable to confer high quality, surface uniformity and evenness on the feel of the fabric.
  • décatissage under pressure provides to subject a fabric, kept mechanically constrained, to a steam treatment under pressure and at a temperature of around 102 ⁇ 130 °C, using suitable sub-pieces the function of which is to produce the desired effects of fixing, finishing and feel on the fabric.
  • the fabric emerging from the décatissage treatments has a regular surface, with sizes and shine which remain stabile with respect to ironing and drops of water.
  • the devices used to perform décatissage substantially divide into two categories: continuous and discontinuous devices.
  • the first category there are devices comprising at least a pressurized steam chamber, delimited at inlet and outlet by sealing devices, inside which a fabric is made to pass.
  • the fabric is compressed between two sub-pieces in a closed ring, normally about 15 ⁇ 20 metres in length, which are permeable to steam. Examples of such devices can be seen in WO-A-94/10368, EP-B-293.028, EP-A-1.010.797 and FR-A-2.154.244.
  • the sub-pieces in the closed ring consist of non-fabrics with sewing yarns made of polyester, nomex® or similar materials; these materials do not allow to obtain effects on the feel comparable to those obtainable using sub-pieces of greater value, for example made of cotton or synthetic/cotton satin or of thick flannel (molleton) in the event that it is desired to obtain a typical appearance and a soft and raised feel.
  • the surface of the sub-pieces made of polyester or nomex® is not regular and has a thickness of not less than about 5 mm, so that it is extremely difficult to guarantee to the fabric a homogeneous surface treatment. Due to this relatively great thickness, there are sealing problems at inlet to and outlet from the machine, and hence safety problems for the workers and the environment.
  • discontinuous décatissage devices in autoclave are more common; these comprise at least:
  • sub-pieces with particular quality and value, for example cotton, cotton/synthetic or synthetic satin, thick flannel or similar, which allow to achieve optimum finishing effects thanks to their smooth and regular surface, reduced thickness, optimum permeability to steam and good mechanical resistance.
  • the purpose of the invention is to achieve a method and device for the semi-continuous décatissage under pressure of any type of fabric, wherein it is possible to use, as supporting sub-pieces, materials suitable to give high characteristics of surface quality and regularity, such as in particular satin or thick flannel made of cotton, cotton/synthetic or synthetic, or other similar materials, without the disadvantages described above deriving from discontinuous treatments.
  • the invention allows to obtain, with a single pass inside a pressurized steam chamber, a substantially finished fabric, with a uniform and perfectly treated surface, possibly with a different quality on the visible and non-visible face.
  • Satins are very beaten weft/chain cotton fabrics, cotton/synthetic mixes (polyester, nomex®, or nylon®) or synthetics characterized in that they have a perfectly regular surface, an extremely limited thickness, in the order of 0.1 ⁇ 0.7 mm, great permeability to steam, in the order of 30 ⁇ 100 mm per second, and good mechanical resistance.
  • Thick flannels have a slightly greater thickness, in the order of about 2 ⁇ 2.5 mm and they too have great permeability to steam and good mechanical resistance.
  • a device comprises at least a sealed chamber, equipped with at least an inlet and an outlet, and defining an inner volume which is filled with steam at a pressure which can be regulated from about 1.1 bar to about 7 bar, with a temperature of between about 102 °C and about 160 °C; inside the sealed chamber there is at least a drawing cylinder, heated and/or holed, advantageously two, on the surface of which the fabric to be treated is wound.
  • the fabric is made to pass, substantially continuously and at an adjustable speed, from inlet to outlet of the sealed chamber; the inlet and outlet are associated with sealing systems of any type whatsoever.
  • the fabric to be treated is accompanied in a sandwich inside said chamber, between two continuous sub-pieces made of a material with a high quality surface, such as satin, thick flannel or similar materials, which unwind from respective rollers arranged on one side of the sealed chamber and wind onto respective rollers arranged on the opposite side of said sealed chamber.
  • a material with a high quality surface such as satin, thick flannel or similar materials
  • the two sub-pieces, continuous and without cross stitches advantageously have a minimum length in the order of 100 ⁇ 200 metres, advantageously more than 500 metres, but they can even reach a length of 4000 ⁇ 5000 metres.
  • the fabric allows to differentiate the quality of the visible face with respect to the non-visible face of the fabric, using two sub-pieces of a different material and/or type, for example a satin of pure cotton for the visible face and a cotton/synthetic satin mix, or more economical quality, or a thick flannel, for the non-visible face.
  • a device for the décatissage of a fabric 11 is denoted generally by the reference number 10 and comprises an autoclave 12, advantageously insulated, the inner volume of which defines a sealed chamber 13 filled with steam at a pressure of between 1.1 and 7 bar.
  • the autoclave 12 has an inlet 14 and an outlet 15 associated with respective sealing means 16 which, in this case, consist of inflatable rubber devices, such as air chambers or bellows. It is clear that, instead of the inflatable devices shown here, any suitable sealing means having the same function can be used in the device 10 according to the invention.
  • the fabric 11 to be treated is fed from an appropriate roll 19, or from continuous pieces, and is accompanied in a sandwich, substantially from the inlet 14 of the autoclave 12, between two sub-pieces of satin, or other material with identical or comparable characteristics, respectively 20 and 21.
  • the two sub-pieces 20 and 21 are unwound from respective unwinding feed rollers 22 and 23, arranged on one side of the autoclave 12; after having accompanied the fabric 11 for the whole path inside the autoclave 12, the sub-pieces 20 and 21 wind onto respective winding rollers 122 and 123 arranged on the opposite side of the autoclave 12.
  • the unwinding rollers 22, 23 and the winding rollers 122, 123 cooperate with respective movable cylinders 24, which allow to regulate the tension of the respective sub-pieces 20 and 21.
  • the fabric 11 emerging from the treatment in the autoclave 12 is sent, in the case shown here, to a cooling treatment made by a suitable cooling unit 25.
  • a second cooling unit 25 is provided arranged upstream of the inlet 14 to the autoclave 12, which is activated during the cycle with the inverted direction.
  • the treatment of the fabric 11 is interrupted and the sub-pieces 20 and 21 are re-wound at high speed, making the rollers 22, 23, 122 and 123 rotate in the opposite direction.
  • the sealing devices 16 are advantageously opened and the pressure of the steam is released.
  • the décatissage cycle can be started again.
  • the rollers 122 and 123 on which the respective sub-pieces 20 and 21 are wound are removed and transferred onto the inlet side 14 of the machine.
  • the machine 10 will continue to have drawn in a piece of any fabric having a length of 15 ⁇ 20 metres, to which the sub-pieces 20 and 21 will be joined in order to be introduced into the machine 10 again.
  • This piece of any fabric can consist of synthetic fabric, poorer quality fabrics, sub-pieces of a conventional type used for drawing into textile machines of various types such as incrementatizers, calenders, cutting machines or raising machines.
  • the sub-pieces 20 and 21 are completely unrolled from the rollers 22 and 23 and wound onto the rollers 122 and 123; from this position, the group of rollers 22, 23, 122 and 123 is made to rotate around the autoclave 12 and the pairs of rollers exchange their position, thus allowing to introduce the fabric 11 always from the same side and also to use one cooling unit 25 only.
  • Fig. 3 shows an alternative system wherein at inlet to and/or at outlet from the pressure chamber 13 there is a transit chamber 27, delimited by respective sealing devices 16 at inlet and outlet, wherein a strong depression is created, with a residual pressure in the order of 0.1 ⁇ 0.5 bar.
  • this transit chamber 27 under depression, located at inlet to the sealed chamber 13 is mainly to remove the air almost completely from the fabric 11 and the sub-pieces 20 and 21; this allows to drastically reduce the time in which the fabric 11 is impregnated with steam inside the chamber 13 and to reduce the risks of damaging the fabric due to the oxygen in the air.
  • the transit chamber 27 When the transit chamber 27 is present at outlet from the chamber 13, its function is to eliminate the steam fumes from the sub-pieces 20 and 21 and from the fabric 11, encouraging and accelerating cooling.
  • the fabrics 11 introduced into the autoclave 12 can be impregnated in advance with chemical products such as bisulphite salts, ammonium salts, etc.
  • the fabrics can also be, without any limitation, wool, wool mix, polyester, polyester mix, polyamide, polyamide mix, lycra®, lycra® mix, silk, silk mix, cotton, cotton mix, viscose, viscose mix, etc., or weft chain fabrics or knitwear fabrics.
  • the fabrics 11 can also arrive in the autoclave 12 substantially dry, with a percentage of humidity in the order of 15 ⁇ 17%, particularly for wool, or wet, with a percentage of humidity which can reach up to 80% of the weight of the fabric.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Treatment Of Fiber Materials (AREA)
EP02015777A 2001-07-17 2002-07-15 Method and device for decatising a fabric Withdrawn EP1277871A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUD20010124 2001-07-17
IT2001UD000124A ITUD20010124A1 (it) 2001-07-17 2001-07-17 Procedimento e dispositivo per il decatissaggio di un tessuto

Publications (1)

Publication Number Publication Date
EP1277871A1 true EP1277871A1 (en) 2003-01-22

Family

ID=11460618

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02015777A Withdrawn EP1277871A1 (en) 2001-07-17 2002-07-15 Method and device for decatising a fabric

Country Status (2)

Country Link
EP (1) EP1277871A1 (it)
IT (1) ITUD20010124A1 (it)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1816249A2 (en) * 2006-02-02 2007-08-08 Tecnotessile Società Nazionale Di Ricerca Tecnologica r.l. Method and device for the finishing treatment of a fabric
WO2008041258A1 (en) * 2006-10-06 2008-04-10 Biella Shrunk Process S.A.S. Di Pietro Alberto & C. Apparatus for continuous decatizing in autoclave
CN105066621A (zh) * 2015-06-23 2015-11-18 江苏双盈纺织科技有限公司 一种蒸汽式印染烘干装置
IT201600106887A1 (it) * 2016-10-24 2018-04-24 Biella Shrunk Process S A S Di P Alberto & C Apparato di decatissaggio

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE137533C (it) *
FR2154244A5 (it) * 1971-09-22 1973-05-04 Wira & Mather
DE3003205A1 (de) * 1980-01-30 1981-08-06 Drabert Söhne Minden (Westf.), 4950 Minden Dekatierseinrichtung fuer gewebe, gewirke o.dgl.
GB2201434A (en) * 1987-02-20 1988-09-01 Pietro Alberto Continuously decatizing fabrics
WO1994010368A1 (en) * 1992-11-02 1994-05-11 Pietro Alberto Improvements in continuous decatizing of fabrics in autoclave

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE137533C (it) *
FR2154244A5 (it) * 1971-09-22 1973-05-04 Wira & Mather
GB1409531A (en) * 1971-09-22 1975-10-08 Wira & Mather Steam treatment of fibres
DE3003205A1 (de) * 1980-01-30 1981-08-06 Drabert Söhne Minden (Westf.), 4950 Minden Dekatierseinrichtung fuer gewebe, gewirke o.dgl.
GB2201434A (en) * 1987-02-20 1988-09-01 Pietro Alberto Continuously decatizing fabrics
WO1994010368A1 (en) * 1992-11-02 1994-05-11 Pietro Alberto Improvements in continuous decatizing of fabrics in autoclave

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1816249A2 (en) * 2006-02-02 2007-08-08 Tecnotessile Società Nazionale Di Ricerca Tecnologica r.l. Method and device for the finishing treatment of a fabric
EP1816249A3 (en) * 2006-02-02 2008-03-19 Tecnotessile Società Nazionale Di Ricerca Tecnologica r.l. Method and device for the finishing treatment of a fabric
WO2008041258A1 (en) * 2006-10-06 2008-04-10 Biella Shrunk Process S.A.S. Di Pietro Alberto & C. Apparatus for continuous decatizing in autoclave
CN101522977B (zh) * 2006-10-06 2013-08-07 彼得罗阿尔贝托连杆收缩加工有限合伙两合公司 用于在高压釜中连续汽蒸的设备
KR101334218B1 (ko) * 2006-10-06 2013-12-02 벨라 시룬크 프로세스 에스.에이.에스. 디 피에트로 알베르토 앤 씨. 압력 가마에서 연속 디커타이징을 위한 장치
CN105066621A (zh) * 2015-06-23 2015-11-18 江苏双盈纺织科技有限公司 一种蒸汽式印染烘干装置
IT201600106887A1 (it) * 2016-10-24 2018-04-24 Biella Shrunk Process S A S Di P Alberto & C Apparato di decatissaggio

Also Published As

Publication number Publication date
ITUD20010124A1 (it) 2003-01-17

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