EP0945539B1 - Procédé et dispositif pour le traitement alcalin continu - Google Patents

Procédé et dispositif pour le traitement alcalin continu Download PDF

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Publication number
EP0945539B1
EP0945539B1 EP99105825A EP99105825A EP0945539B1 EP 0945539 B1 EP0945539 B1 EP 0945539B1 EP 99105825 A EP99105825 A EP 99105825A EP 99105825 A EP99105825 A EP 99105825A EP 0945539 B1 EP0945539 B1 EP 0945539B1
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EP
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Prior art keywords
roller
compartment
rollers
caustic soda
soda solution
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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
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EP99105825A
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German (de)
English (en)
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EP0945539A1 (fr
Inventor
Brigitte Hellwich
Hartmut Hellwich
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.)
Textilforschungsinstitut Thueringen Vogtland TITV eV
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Textilforschungsinstitut Thueringen Vogtland TITV eV
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    • 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
    • D06B7/00—Mercerising, e.g. lustring by mercerising
    • D06B7/08—Mercerising, e.g. lustring by mercerising of fabrics of indefinite length

Definitions

  • the invention relates to a method and a device for the continuous alkali treatment of textile products with partial differences in thickness, such as tips and embroidery made primarily from cellulosic raw materials, but also consist of synthetic material can.
  • Lace is a flat textile object in the form of an ornament, the effect of which is shown through of the background by itself between the pattern shapes located openings is based.
  • alkali treatments of lace and embroidery serve the fiber digestion and prepare the goods for bleaching, Dyeing and printing before. These alkali treatments are done currently discontinuous in the low concentration range. There are alkali, usually sodium hydroxide and soda, for use. Their effect can be the usual textile auxiliaries are supported.
  • DE 196 35 171 C 1 describes a method for washing out of polyvinyl alcohol base fabric made of lace and embroidery described, also according to the principle of spraying and sucking works. It also becomes Improvement of the drainage effect by hanging up described with a brush. This device is for continuous lye treatment is not provided and unsuitable.
  • the invention has for its object a method and to develop a device that the tips and Embroidery through an adapted alkali treatment like this be modified so that they have a very good fiber digestion have an evenly improved staining, a differentiated improved staining, a excellent printability, even using modern spray printing technology, and enable a very high degree of whiteness.
  • the products should be managed continuously with lye of different concentrations and Temperature and length can be treated Width of the goods can be set in an exactly defined manner and there must be either homogeneous and inhomogeneous lye effects can be generated and there must be another Minimize alkali consumption.
  • the device consists of a pre-impregnation compartment, a main impregnation compartment 1, a post-impregnation compartment 5, a stabilizing compartment 15 and one Washing section 19.
  • the pre-impregnation compartment not shown consists of a usual low-tension working Wide washer and a squeegee on the End of the pre-impregnation compartment is arranged and a Has cover.
  • the main impregnation compartment 1 exists from the first pair of rollers 2 and 4, which run against each other are arranged and thereby form a gusset 3.
  • the main impregnation compartment 1 has a separate one Not shown drive.
  • the re-impregnation compartment 5 consists of a chassis 6, which is under the roller 4 of the first pair of rollers 2, 4 and the subsequent roller 8 of the second pair of rollers 7, 8 attached and heated and is equipped with a temperature control device.
  • the axes of the rollers 4 and 8 are at the same height and parallel to the axis of the roller 2.
  • the roller 7 is closed the rollers 4 and 8 arranged on gap, so that the roller 7 is supported on the rollers 4 and 8.
  • the roller 8 is arranged so that by means of both sides Spring pressure on the roller 10 of the following vertical crushing unit 9 is pressed.
  • a spray tube 11 which is connected to the chassis 6 stands, attached.
  • the post-impregnation compartment 5 as shown in FIG. 2 so that instead the roller 8 are two parallel rollers, the supporting roller 12 and the goods guide roller 13 and a Suction bar 14 are located.
  • the roller 12 is also a material guide roller and at the same time the holder for the roller 7.
  • the roller 13 is a material guide roller over the suction bar 14 arranged.
  • the chassis 6 is through a smaller chassis 6a replaced and is located on the underside of the roller 4.
  • the spray tube 11 is out of operation.
  • the vertical crusher 9 of the post-impregnation compartment 5 has one separate drive.
  • the stabilization compartment 15 exists of two endlessly running on the edges of the textile product Needle or clip chains with web guides and needle devices 16, the inlet field 17, the Residence zone 18, a washing section 19 and a downstream Pull-out crushing unit 20.
  • the washing section 19 is located 1 at the end of the stabilization compartment 15, which also includes the entry field 17 and the dwelling zone 18.
  • the inlet field 17 is adjustable in width.
  • Above the washing section 19 are spray nozzles 21 at equal intervals attached across the width of the textile product.
  • Each in front of the spray nozzles 21 is above the path of the textile product and across the entire width of the Stabilizing compartment 15 a partition 22 is arranged. Between the spray nozzles 21 are suction bars 23 with Sealing lips attached. Over the sealing lips of the squeegees 23 there is a sealing brush 24. Below the spray nozzle 21 and the suction bar 23 is the drip pan 25.
  • the stabilizing compartment 15 with the pull-out crushing unit 20 has one drive each.
  • an air tip made of 100% Cotton provided. for a modern spray printing process should be pretreated. This requires homogeneous mercerization. The top will be there boiled alkaline and submitted wet to the device. For this purpose, it should contain 270 g / l sodium hydroxide solution be mercerized. The lace and also embroidery can be pre-impregnated dry or wet and there through a content of sodium hydroxide solution 50 g / l be prepared for the subsequent process. Through a pre-impregnation They will be finished with an even finish and very low moisture level. The fleet content is max. 80%. In this case After pre-impregnation, the tip has a sodium hydroxide solution of 30 g / kg. The aspirated tip contains still 60% water.
  • the fleet consists of those used for shock de-leaching rinsing water from the following compartments.
  • the suction bar works at the end of the pre-impregnation with a special cover to a low Moisture level with low energy consumption too to back up.
  • the tip then becomes the main impregnation compartment 1 fed and impregnated with sodium hydroxide solution.
  • a gusset 3 formed and thus exerted pressure.
  • this Gusset 3 is made of alkali solution using a metering pump the suds container filled. This is from the Tip picked up or flowing over an overflow back to the tub.
  • the suds container there is a temperature measurement and control device that has an intended temperature the lye enables and a lye concentration measurement and control device that the backflowing Amount of alkali lye, commercially available alkali lye and water, mixed to alkali, which in turn the gusset 3 is supplied.
  • K ware is generally up to 300 g / l sodium hydroxide solution and K H should be a maximum of 600 g / l sodium hydroxide solution.
  • the tip After the main impregnation, the tip still contains 110% water at a squeezing pressure of 5 bar.
  • the alkali concentration of the main impregnation must be 480 g / l sodium hydroxide solution. As soon as the tip leaves the horizontal crushing unit of the main impregnation compartment 1, it arrives at the post-impregnation compartment 5 in the bound goods run.
  • the concentration of sodium hydroxide solution which corresponds to the target concentration of the sodium hydroxide solution on the tip, in the example 270 g / l, is used.
  • the tip is impregnated in the chassis 6, squeezed off by the roller 7 resting on it, impregnated again by means of a spray tube 11, squeezed again by the roller 7 resting on it, impregnated again in the chassis 6, dewatered by the lower roller 10 of the vertical crushing unit 9. impregnated by spray tube 11 and finally dewatered in the vertical crushing unit 9 at 5 bar to a liquor content of 110%.
  • the tip generally runs in the bound goods run.
  • the squeezing pressure of either 3 - 8 bar of the main impregnation compartment 1 and the vertical crushing unit 9 can optionally also be of different heights and thus the Squeeze effect fluctuate. Since it can be assumed that in the vertical crushing unit 9 in the sense of a minimized Use of caustic solution takes place to a maximum no or only a slight excess of lye in the Chassis 6 arise, the dilution of the commercially available Sodium hydroxide solution is used and so the main impregnation is fed.
  • the re-impregnation can also optionally be carried out according to FIG. 2 be carried out so that the tip first in Chassis 6a impregnated by the roller 7 lying thereon squeezed under the supporting roller 12 above the Suction bar 14 under the guide roller 13 and in the bound Goods run to the vertical crushing unit 9 is fed.
  • the Tip is through the suction bar 14 to a liquor content brought by 100%.
  • the extracted sodium hydroxide solution is the Chassis 6a of the re-impregnation compartment 5 is fed again.
  • the excess lye is used to dilute the commercially available Sodium hydroxide solution used and so the main impregnation fed again.
  • the speed of the vertical crusher 9 of the post-impregnation compartment 5 can deviate negatively or positively from the main impregnation compartment 1.
  • the speed difference of the vertical crushing mechanism is 9 + 1%.
  • the tip leaves the vertical crushing unit 9 and comes over a short distance on the tension chain of the Stabilization compartment 15.
  • the speed of the Tension chain can be negative or positive to the main impregnation compartment 1 deviate.
  • the speed difference is the tension chain + 2%.
  • the tip is also open in the conical inlet field 17 brought the desired width, in the example to + 2% the starting width and then by lingering this state stabilized.
  • the latitude and Length gain of the tip is thus in length and Transverse direction 2% each.
  • Sodium hydroxide solution is present in the first spray tube 21 a concentration of 94 g / l, the liquor temperature is close to the cooking temperature. It will be 100% from Goods weight applied to fleet. The top leaves the compartment with 182 g / l sodium hydroxide solution.
  • the vacuumed Fleet of the first squeegee 23 is in production of the caustic soda liquors for main and secondary impregnation used to dilute the strong alkali.
  • the second spray tube 21 brings liquor with a sodium hydroxide content from 50 g / l.
  • the liquor temperature is approx. 90 ° C. There are 200% of the weight of the goods Fleet applied.
  • the tip leaves the compartment with 94 g / l sodium hydroxide solution.
  • the extracted liquor is heated up and fed 50% to the first spray tube 21.
  • the remaining liquor is used for pre-impregnation.
  • the third spray tube 21 carries liquor with a sodium hydroxide solution from 28 g / l to.
  • the liquor temperature is approx. 90 ° C. There are 200% of the weight of the water upset.
  • the tip leaves the compartment at 50 g / l Caustic soda.
  • the squeezed liquor is heated up and supplied to the second spray tube 21.
  • the laces and embroidery are excellent Dye absorption capacity and significantly improved textile properties.
  • the consumption at Sodium hydroxide solution is used consistently greatly reduced in the overall process.
  • the alkaline boiled and pre-bleached embroidery can be fed to the pre-impregnation compartment analogously to Example 1 and be treated there or they will be like
  • the main impregnation compartment immediately dries 1 submitted and with sodium hydroxide solution in the concentration range from 50 g / l to 300 g / l impregnated and squeezed at 5-6 bar. Because of the differences in thickness the tip enriches itself when squeezed Sodium hydroxide in the embroidery base, or in the tip itself there is only a reduced amount of sodium hydroxide solution / kg of goods. It passes through the post-impregnation compartment 5 without additional Exposure to lye. Changes in length and width the embroidery will not be done.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (5)

  1. Procédé de traitement aux alcalis en continu de produits textiles en forme de bandes avec des différences d'épaisseur partielles, en particulier des dentelles et des broderies, dans lequel ceux-ci sont pré-traités par un agent alcalin, pré-imprégnés par une lessive alcaline faible, essorés, mesurés en terme de densité de chargement, amenés à un système d'imprégnation principal (1) avec une lessive alcaline concentrée, procédé dans lequel l'alimentation en lessive alcaline se fait via un coin (3) et les produits sont ensuite essorés, amenés à une zone de séjour et de stabilisation sous la forme de rouleaux ou d'une zone de tension, et l'on effectue une re-préparation de la lessive alcaline dont la concentration et la température sont corrigées, cette lessive alcaline est ramenée au coin (3) et la re-préparation des bains de traitement se fait selon le principe du contre-courant, procédé caractérisé en ce que :
    on amène au produit textile bouilli et pré-imprégné par un agent alcalin dans le système d'imprégnation principal (1) une lessive de soude de formule :
    Figure 00250001
    (dont les divers paramètres sont expliqués dans la description), mais jusqu'à un maximum de 600 g/l dans le coin (3) de la première paire de rouleaux (2, 4),
    le produit textile parvient depuis la section d'imprégnation principale (1), dans le parcours de produit lié, via le rouleau (4) de la première paire de rouleaux (2, 4), qui sert simultanément de rouleau exprimeur de la section d'imprégnation principale (1) et de premier rouleau guide-produit de la section de post-imprégnation (5), sur une distance de trajet très courte, dans la section de post-imprégnation (5) et y est traité avec une concentration de lessive alcaline qui correspond à la concentration théorique de la lessive de soude sur le produit textile, en étant imprégné dans le châssis (6), en étant soumis à exprimage entre le rouleau (4) de la première paire de rouleaux et le rouleau (7) de la deuxième paire de rouleaux, en étant imprégné à nouveau par le tube pulvérisateur (11), en étant soumis à exprimage entre le rouleau (7) et le rouleau (8) suivant, en étant imprégné dans le châssis (6), en étant soumis à exprimage entre le rouleau (8) et le rouleau (10) de l'installation d'exprimage verticale (9), en étant imprégné par le tube pulvérisateur (11) et en étant essoré dans l'installation d'exprimage verticale (9) à une faible teneur en bain, et tandis qu'aucune autre alimentation en lessive de soude n'est effectuée après que le produit a quitté la section de post-imprégnation (5),
    le produit textile est guidé, pour le réglage de la longueur et de la largeur souhaitées, tout d'abord de la section d'imprégnation principale (1) dans la section de post-imprégnation (5), les différences de vitesse entre l'installation d'exprimage verticale (9) et la section d'imprégnation principale (1) pouvant être réglée de manière positive ou négative,
    ensuite, le produit textile stabilisé fortement essoré par l'installation d'exprimage verticale (9) ou la poutre d'aspiration (14) est amené à la ligne de lavage (19) et y est désalcalinisé par chocs au moyen de pulvérisation et d'aspiration.
  2. Procédé en particulier selon la revendication 1, caractérisé en ce que la post-imprégnation se fait tout d'abord dans le châssis (6a), le produit textile est soumis à exprimage par le rouleau se trouvant dessus (7) en liaison avec le rouleau (4) et soumis encore une fois à exprimage en liaison avec le rouleau (12) qui sert de rouleau guide-produit et représente le support du rouleau (7), et est amené ensuite dans le parcours de produit non lié en dessous du rouleau d'appui (12) à la poutre d'aspiration (14) et parvient en dessous du rouleau (13), qui est agencé comme rouleau guide-produit au-dessus de la poutre d'aspiration (14), à l'installation d'exprimage verticale (9), une teneur en bain de 100% étant atteinte au moyen de la poutre d'aspiration (14) et la lessive de soude aspirée étant renvoyée au châssis (6a), la lessive excédentaire étant ramenée au système d'imprégnation principal, les différences de vitesses et le traitement ultérieur du produit textile s'effectuant selon la revendication 1.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le produit textile bouilli et pré-blanchi est présenté à sec à la section d'imprégnation principale (1), imprégné par une lessive de soude dans la plage de concentration de 50-300 g/1 et soumis à exprimage sous une pression de 5-6 bars entre les rouleaux (2 et 4).
  4. Dispositif pour réaliser le procédé selon l'une quelconque des revendications 1 à 3, constitué d'une section de pré-imprégnation avec une machine de lavage au large, d'une section d'imprégnation principale (1) avec un agencement de rouleaux (2, 4), au-dessus desquels sont agencés des tubes de pulvérisation (11) et au-dessous desquels sont agencés des récipients collecteurs (6) ainsi que des pompes de refoulement avec des tuyauteries pour la réalisation d'un circuit du liquide de traitement depuis des récipients collecteurs (6) de retour aux récipients collecteurs (6) via les tubes pulvérisateurs (11), et constitué en outre de rouleaux (2, 4) tournant à contresens et formant un coin (3), caractérisé en ce que :
    on agence en aval de la section d'imprégnation principale (1), avec alimentation directe en la lessive au coin (3), une section de post-imprégnation (5) et, après celle-ci, une section de stabilisation (15) avec une ligne de lavage (19),
    la section d'imprégnation principale (1) est constituée de rouleaux (2 et 4) tournant à contresens et formant un coin (3), le rouleau (4) étant un rouleau guide-produit de la section de post-imprégnation (5),
    la section de post-imprégnation (5) présente en dessous des rouleaux (4 et 8) un châssis pouvant être chauffé (6) ces rouleaux (4 et 8) se trouvant à la même hauteur que le rouleau (2), le rouleau (7) étant agencé de manière à pouvoir s'appuyer sur ces rouleaux (4 et 8) et le rouleau (8) se trouvant par ailleurs, avec le tube pulvérisateur (11) situé au-dessus de lui, de manière à pouvoir se presser contre le rouleau (10) de l'installation d'exprimage verticale (9) consécutif,
    une ligne de lavage (19) avec des buses de pulvérisation (21) et une installation d'exprimage d'extraction (20) est agencée à l'extrémité de la section de stabilisation (15) qui comprend également la zone d'entrée (17) et la zone de séjour (18), une tôle de séparation (22) se trouvant devant les buses de stabilisation (21) sur toute la largeur de la section de stabilisation (15) et des poutres d'aspiration (23) avec des lèvres d'étanchéité sur lesquelles se trouvent des brosses d'étanchéité (24) se trouvant entre les buses de pulvérisation (21), et un bac collecteur connu (25) étant agencé en dessous de ces buses de pulvérisation (21).
  5. Appareil selon la revendication 2, caractérisé en ce que la section de post-imprégnation (5) présente, dans l'évidement du rouleau (8), deux rouleaux parallèles (12 et 13) avec une poutre d'aspiration (14), le châssis (6a) se trouvant sur la partie inférieure du rouleau (14) avec mise hors service du tube pulvérisateur (11).
EP99105825A 1998-03-26 1999-03-23 Procédé et dispositif pour le traitement alcalin continu Expired - Lifetime EP0945539B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813237A DE19813237C2 (de) 1998-03-26 1998-03-26 Verfahren und Vorrichtung zur kontinuierlichen Alkalibehandlung
DE19813237 1998-03-26

Publications (2)

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EP0945539A1 EP0945539A1 (fr) 1999-09-29
EP0945539B1 true EP0945539B1 (fr) 2001-02-28

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DE (2) DE19813237C2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008059469A2 (fr) * 2008-02-14 2008-05-22 Hasan Eka Permana Appareil pour merceriser des textiles et procédé de mercerisage de textiles au moyen de cet appareil
CN109844208B (zh) 2016-08-04 2021-10-29 Pvh公司 免烫织物和服装及其整理方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT305182B (de) * 1969-03-28 1973-02-12 Textilwerke Josef Otten Mercerisiermaschine
DE2544494A1 (de) * 1975-10-04 1977-04-07 Kleinewefers Ind Co Gmbh Verfahren und vorrichtung zum kontinuierlichen mercerisieren einer textilbahn
EP0295608B1 (fr) * 1987-06-15 1992-02-05 ZITTAUER MASCHINENFABRIK GmbH Procédé de mercerisage de matières textiles en bandes
DE58901667D1 (de) * 1988-04-29 1992-07-23 Benninger Ag Maschf Verfahren und vorrichtung zum breitstrecken einer gewebebahn in einer mercerisiermaschine.
DE4213127C1 (fr) * 1992-04-21 1993-07-01 Babcock Textilmaschinen Gmbh, 2105 Seevetal, De
DE19635171C1 (de) * 1996-08-30 1997-11-06 Titv Greiz Verfahren und Vorrichtung zum Auslösen von Stickgrund aus Polyvinylalkohol-Material

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DE59900045D1 (de) 2001-04-05
DE19813237C2 (de) 2000-05-04
DE19813237A1 (de) 1999-09-30
EP0945539A1 (fr) 1999-09-29

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