EP3408441B1 - Traitement thermique de matières textiles et appareil pour elimination des impuretés huileuses d'un textile - Google Patents

Traitement thermique de matières textiles et appareil pour elimination des impuretés huileuses d'un textile Download PDF

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Publication number
EP3408441B1
EP3408441B1 EP16717484.6A EP16717484A EP3408441B1 EP 3408441 B1 EP3408441 B1 EP 3408441B1 EP 16717484 A EP16717484 A EP 16717484A EP 3408441 B1 EP3408441 B1 EP 3408441B1
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EP
European Patent Office
Prior art keywords
textile material
impurities
treatment
suction
fabric
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EP16717484.6A
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German (de)
English (en)
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EP3408441C0 (fr
EP3408441A1 (fr
Inventor
Lorenzo TEMPESTINI
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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
    • 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
    • D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
    • D06B15/04—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours by suction
    • 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
    • D06B19/00—Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00
    • 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
    • D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
    • D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
    • 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
    • D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
    • D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
    • D06B3/12—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics in zig-zag manner over series of guiding means
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods

Definitions

  • the present invention relates to a thermal treatment for textile material, designed in particular for removal from the textile material of impurities or oily residue that might remain trapped in the textile material following upon the spinning and weaving processes and/or due to increase in colour fastness in the case of coloured fabrics.
  • the oils present on the raw textile material would cause in fact a non-uniform dyeing of the textile material, and passage into the stenter dryer would lead to evaporation of the oils, with consequent production of smoke, pollution, and unpleasant smells.
  • Washing or cleaning of the raw textile material, with continuous or piece feed is today performed principally in two ways: either by passage of the textile material into kiers filled with a solution made up of water and detergent products (soaps) or via so-called dry cleaning, i.e., a process that envisages the use of perchloroethylene for removal of the oils.
  • the washing process in fact entails the use of large amounts of water and the use of soaps necessary for rendering the oils soluble, which, once removed from the textile material, are found to be present in the wastewater.
  • the dry-cleaning process is certainly less burdensome from the standpoint of consumption of water, but introduces the use of a substance, perchloroethylene, that, if not properly handled, may prove altogether dangerous, both from the environmental standpoint and from that of health hazards.
  • finishing is one of the main problems linked to the cycle of processing of fabric in the step commonly referred to as "finishing".
  • the impurities may be classified in the two categories:
  • the chemical nature of the secondary impurities may in turn be distinguished into the two types:
  • a process for treating a textile article including the steps of cooling the textile article by a cryogenic fluid and subsequently wetting the article with a product at low condensation temperature in liquid state and making the liquid product act on the fibers of the article.
  • colour fastness of a textile material is the stability to chromatic variations in tone and intensity, i.e., the resistance that it manifests in regard to aggressive agents.
  • Colour fastness can be marred by various agents, each of which acts on the colour with different mechanisms, causing different forms of degradation.
  • the agents that may weaken the bond between the dye and the fibre may be water, sweat, saliva, light radiation, friction/rubbing, etc. For this reason, there exist various types of tests for testing the various degrees of colour fastness, for example:
  • Colour fastness hence depends upon various factors, such as the chemical nature of the dye, the chemical nature of the fibre, the type of bonds between dye and fibre, and the intensity of the dye. For this reason, according to the type of result that it is desired to obtain, different types of dyes are used and as many types of materials. Higher levels of colour fastness entail dyeing processes that are more laborious and consequently more costly. In general, to be able to obtain higher levels of fastness, it is necessary to resort to so-called "reactive" dyes, whereas, when no stringent specifications are set in this connection, recourse is had to "direct” dyes. In general, reactive dyeing requires twice the time necessary for carrying out direct dyeing, with consequent doubling of the amount of raw materials and energy necessary for the process (water, heat).
  • the temperature of the textile material is brought to a value much lower than 0°C by means of various refrigerating systems that can operate with transmission of heat by conduction, or convection, or radiation.
  • the textile material is set in contact with a cold substance (temperature much lower than 0°C), for example by dipping it in liquid nitrogen.
  • the cold substance is injected into a chamber that is cooled (oven).
  • the textile material by passing through this environment, is cooled by the mixture of gases at low temperature.
  • the reduction of temperature of the textile material leads, as a consequence, to the transition of state of the particles of oil, waxes, and lubricants present on the textile material, which pass from a liquid state to a solid state and will be the brittler, the lower their temperature.
  • the textile material will have to reach a temperature lower than -60°C. The time necessary for this to occur obviously depends upon different factors, amongst which:
  • a first advantage of the invention lies in the fact that the treatment according to the invention does not make use of polluting substances and/or substances dangerous for health and the environment.
  • a further advantage lies in the fact that the textile material subjected to the treatment at low temperature is cleaned from oily substances and can be used directly for subsequent operations of textile dyeing and finishing.
  • a further advantage lies in the fact that the considerable reduction in temperature, followed by the step of return to room temperature, strengthens the bond between dye and fabric bringing dyeing processes carried out with direct dyes to values of colour fastness comparable to those obtained with reactive dyes.
  • the advantages afforded by this process are hence a greater colour fastness, with time saving (to treat 450 m of fabric at a rate of 25 m/min, keeping the fabric immersed for 20 s, 18 min are required as against the 300 min of difference between dyeing using a reactive process and dyeing using a direct process), and without any need to use raw materials, such as water, steam, and auxiliary textiles, a fact that leads this process to have an extremely reduced impact on the environment as compared to the classic process used as reference.
  • the treatment basically comprises a step of feed of an amount of textile material, preferably a continuously fed fabric, which is subjected in succession to a cooling step at a temperature lower than the temperature of solidification of said impurities, preferably lower than -130°C, and a step of removal of the solidified oily impurities from the fabric.
  • Removal is obtained by means of an action of a physical or physico-mechanical type, for example by vibration, shaking, or suction.
  • the cooling step is performed by dipping the fabric in liquid nitrogen, and subsequent suction of the sublimation fumes.
  • the cooling step and/or the step of removal of the solidified impurities are executed repeatedly and in succession.
  • Illustrated schematically in Figure 1 is an apparatus suited to carry out the treatment according to the invention for removing oily impurities from a fabric, comprising a feed 1 with continuous advance of a fabric 2, which is made to pass below the level of filling of a tank of liquid nitrogen 3 set downstream of said feed 1.
  • the fabric 2 After cooling, the fabric 2 is made to pass alongside a suction plate or mat 4, downstream of the aforesaid tank, for removal of the sublimation fumes from the fabric and with them the impurities.
  • the apparatus comprises an array of deflecting rollers 5 arranged for bringing about a repeated dipping of the fabric in the tank 3 and corresponding repeated passes of the fabric against a suction plate or mat. Appearing in the table of Figure 2 are the results of treatments according to the invention carried out on various types of fabric.
  • the suction pressure applied was 60 kPa.
  • the values are given in weight percentages of the extracted substances.
  • the tests conducted enabled verification of whether the treatment, and in particular the succession of the steps of cooling in liquid nitrogen and suction of the sublimation fumes, manages to reduce significantly the percentage of impurities present in the fabric and achieve the desired advantages.
  • the treatment basically comprises a step of feed of an amount of fabric, preferably a continuously fed fabric, which is subjected to one or more steps of cooling at low temperatures, for example lower than -130°C.
  • the colour by remaining at this temperature for some seconds, increases its own bond with the fabric, thus increasing its fastness.
  • Illustrated schematically in Figure 3 is an apparatus suited to carrying out the process according to what has been described in the present disclosure in order to increase colour fastness of the fabric, the apparatus comprising a feed with continuous advance of a fabric 7, which is made to pass below the level of filling of a tank 9 of liquid nitrogen 10.
  • the apparatus comprises an array of deflecting and entraining rollers 8 connected to which is a chain is with pins to which the fabric 7 is fixed. The rolls thus arranged enable repeated dipping of the fabric in the nitrogen 10, thus enabling increase of the processing rate.
  • Appearing in Figure 7 is the table with the values of comparison between the stay time of the fabric in the tunnel and the time necessary for dipping. As emerges clearly from the data, on account of the different principles of transmission of heat, dipping of the fabric in liquid nitrogen at a temperature close on -190°C enables processing times to be obtained shorter than the time for passage through the tunnel cooled at -130°C.
  • Figures 5 and 6 instead, present visually the difference between the two cloths used for the test of colour fastness to dry rubbing.
  • the cloth of Figure 6 used for the fabric subjected to the treatment according to the invention is much lighter than that of Figure 5 used on non-treated fabric, thus indicating a greater colour fastness.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Claims (7)

  1. Traitement d'une matière textile (2) avec des impuretés huileuses, comprenant les étapes suivantes :
    introduire (1) une quantité de matière textile (2) ; et refroidir ladite quantité de matière textile à une température inférieure à 130 °C ;
    ledit traitement étant caractérisé en ce que ladite matière textile (2) est un tissu coloré et en ce que ladite étape de refroidissement est effectuée à une température inférieure à la température de solidification desdites impuretés, et qui est suffisamment basse pour permettre l'affaiblissement de la liaison entre la fibre et les impuretés, le traitement comprenant l'élimination ultérieure, au moyen d'une action physique, des impuretés solidifiées de la matière textile, et l'aspiration des fumées de sublimation de la matière textile,
    dans lequel ladite étape de refroidissement est effectuée par immersion répétée de la matière textile dans de l'azote liquide.
  2. Traitement selon la revendication 1, dans lequel ladite étape d'introduction est effectuée par une introduction continue d'une pièce de matière textile.
  3. Traitement selon la revendication 2, dans lequel ladite étape de refroidissement et ladite étape d'aspiration sont exécutées de manière répétée et successive.
  4. Traitement selon l'une ou l'autre des revendications 2 ou 3, dans lequel ladite étape d'aspiration est réalisée au moyen d'une plaque ou natte d'aspiration amenée jusqu'au tissu refroidi.
  5. Appareil pour éliminer des impuretés huileuses d'une matière textile, comprenant :
    au moins un dispositif d'introduction (1) à avance continue d'une matière textile (2) ;
    au moins un réservoir contenant de l'azote liquide (3) en aval dudit dispositif d'introduction (1), caractérisé en ce que
    ledit réservoir contenant de l'azote liquide (3) est prévu pour effectuer un traitement de refroidissement à une température inférieure à la température de solidification desdites impuretés ; et
    des moyens d'aspiration (4), placés en aval dudit réservoir, pour tirer les fumées de sublimation de la matière textile, et
    des moyens pour éliminer, par une action physique, les impuretés solidifiées de la matière textile.
  6. Appareil selon la revendication 5, comprenant des moyens pour soumettre, de manière répétée, ladite matière textile au passage par le réservoir contenant de l'azote liquide et à une aspiration ultérieure.
  7. Appareil selon la revendication 5 ou 6, dans lequel lesdits moyens d'aspiration comprennent au moins une plaque ou natte d'aspiration amenée jusqu'à ladite matière textile (2).
EP16717484.6A 2016-01-26 2016-01-26 Traitement thermique de matières textiles et appareil pour elimination des impuretés huileuses d'un textile Active EP3408441B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2016/000017 WO2017130225A1 (fr) 2016-01-26 2016-01-26 Traitement thermique de matières textiles

Publications (3)

Publication Number Publication Date
EP3408441A1 EP3408441A1 (fr) 2018-12-05
EP3408441C0 EP3408441C0 (fr) 2023-07-19
EP3408441B1 true EP3408441B1 (fr) 2023-07-19

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ID=55795157

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Application Number Title Priority Date Filing Date
EP16717484.6A Active EP3408441B1 (fr) 2016-01-26 2016-01-26 Traitement thermique de matières textiles et appareil pour elimination des impuretés huileuses d'un textile

Country Status (5)

Country Link
EP (1) EP3408441B1 (fr)
JP (1) JP6721691B2 (fr)
CN (1) CN108463591B (fr)
ES (1) ES2955680T3 (fr)
WO (1) WO2017130225A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TR202022396A2 (tr) * 2020-12-30 2021-02-22 Oernek Makina Sanayi Ve Ticaret Anonim Sirketi Ultrasoni̇k i̇pli̇k kurutma si̇stemi̇

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5929991Y2 (ja) * 1978-05-23 1984-08-27 日本酸素株式会社 布地の冷却装置
JPS5929712B2 (ja) * 1979-03-02 1984-07-23 ジューキ株式会社 織編物の縮絨装置
DE3015672A1 (de) * 1980-04-23 1981-10-29 Drabert Söhne Minden (Westf.), 4950 Minden Verfahren und vorrichtung zum verbessern der qualitaet von bahnfoermigen materialien
DE3016365C2 (de) * 1980-04-28 1982-12-02 Kurt Ehemann Spezialmaschinenfabrik Kg, 2870 Delmenhorst Verfahren zur Wärmebehandlung textiler Warenbahnen
JPS609151B2 (ja) * 1982-10-14 1985-03-08 京都機械株式会社 布帛の処理装置
DE3324217A1 (de) * 1983-07-05 1985-01-17 Kurt Ehemann Spezialmaschinenfabrik GmbH & Co KG, 2870 Delmenhorst Vorrichtung zur waermebehandlung textiler warenbahnen auf ausruestmaschinen
CN88101218A (zh) * 1987-03-06 1988-09-14 Mtm奥伯迈尔公司 材料的液体处理方法
EP0711864B1 (fr) * 1994-11-08 2001-06-13 Raytheon Company Nettoyage à sec de vêtements utilisant l'agitation par vets de fluide gazeux
JPH10219525A (ja) * 1997-01-31 1998-08-18 Daito Kosan:Kk 繊維加工方法
JPH10244236A (ja) * 1997-03-07 1998-09-14 Duskin Co Ltd マット等の洗浄方法
JP2925011B2 (ja) * 1997-06-30 1999-07-26 建設省東北地方建設局長 ワイヤーロープの清掃方法及びその清掃装置
AU2003274394A1 (en) * 2002-10-19 2004-05-04 Texcote Technology (International) Limited Process and apparatus for the treatment of fabric articles such as garments or apparel
EP1570251A4 (fr) * 2002-12-12 2007-09-26 Cw Holdings Llc Procedes cryogeniques pour traiter des collants
ITFI20040197A1 (it) * 2004-09-24 2004-12-24 Biancalani Ricerca S R L Metodo ed impianto per il raffreddamento ed il trattamento di materiali tessili con ammoniaca od altri prodotti liquidi

Also Published As

Publication number Publication date
JP2019502837A (ja) 2019-01-31
EP3408441C0 (fr) 2023-07-19
CN108463591A (zh) 2018-08-28
WO2017130225A1 (fr) 2017-08-03
JP6721691B2 (ja) 2020-07-15
EP3408441A1 (fr) 2018-12-05
CN108463591B (zh) 2021-04-23
ES2955680T3 (es) 2023-12-05

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