US3690814A - Method for continuous wet treatment of a textile web - Google Patents

Method for continuous wet treatment of a textile web Download PDF

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Publication number
US3690814A
US3690814A US14361A US3690814DA US3690814A US 3690814 A US3690814 A US 3690814A US 14361 A US14361 A US 14361A US 3690814D A US3690814D A US 3690814DA US 3690814 A US3690814 A US 3690814A
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US
United States
Prior art keywords
web
rollers
bath
treatment
textile
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
US14361A
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English (en)
Inventor
Peter Schroeder
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.)
Weber Paul AG
PAUL WEBER AG
Original Assignee
Weber Paul AG
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 Weber Paul AG filed Critical Weber Paul AG
Application granted granted Critical
Publication of US3690814A publication Critical patent/US3690814A/en
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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
    • 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
    • D06B3/20—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics with means to improve the circulation of the treating material on the surface of the fabric

Definitions

  • the web is guided over perforated rollers and, with respect to the majority of these rollers, the web has a looping angle therearound in excess of 180.
  • the perforated rollers are arranged so close to each other that, although they do not touch, they form practically an uninterrupted support for the web.
  • At least one wide-slot nozzle directs treatment liquid directly against the textile web in the bath.
  • the rollers have displacement inserts therein to fill a substantial part of the interior of the rollers.
  • the textile material is immersed in the treatment bath during the entire treatment.
  • it is sought to intensify the effect of the bath on the textile material in various ways, for example in that a flow of the bath is produced to run counter to the direction of movement of the textile web, or by vibrators, etc.
  • Ficks law of diffusion may be stated as follows:
  • the concentration gradient dx/dx can be made a maximum, from the beginning to the end of the process, if the concentration difference between the bath and the fabric is continuously maintained at as high as possible a value. It follows from this that the textile web must, during the entire process, be immersed in the bath, and the bath must be guided in a continuous counter-current relative to the textile web. This results in a single-bath process.
  • the moving bath In order for economic reasons, to make the diffusion paths dx as short as possible, the moving bath must be applied directly on the individual fibers, in order that the concentration difference between the surface and the interior of the fiber will become a maximum and the respective chemicals can diffuse quickly, However, since the fabric web moving in the liquid has a relatively thick boundary layer, it is necessary to break through this layer as quickly and as thoroughly as possible to obtain the desired treatment effect.
  • This invention relates to the continuous wet treatment of textile webs and, more particularly, to an improved method and apparatus for such treatment which, while handling the web to be treated extremely gently, insure an effective penetration of the boundary layers of the web.
  • the method and apparatus of the invention provide an increase in the efficiency of the treatment and, thus, a substantial shortening of the required treatment time is attained while, at the same time, the invention method and apparau's provide the possibility of treating extremely delicate webs without danger of damaging the webs.
  • the textile web while passing through the treatment bath, is guided positively and supported practically without interruption.
  • the opposite surfaces are alternately stretched and compressed by an alternating bending motion.
  • the apparatus for performing the method comprises rollers arranged in a channel-type bath vessel and providing a zig-zag deflection of the textile web.
  • the rollers are perforated and are arranged so close together that, while they do not touch, they form practically an uninterrupted support for the textile web.
  • An object of the invention is to provide an improved method for the continuous wet treatment of textile webs.
  • Another object of the invention is to provide an improved apparatus for the continuous Wet treatment of textile webs.
  • a further object of the invention is to provide such a method and apparatus in which the web can be treated extremely gently while insuring an effective penetration of the boundary layers of the web.
  • Another object of the invention is to provide such a method and apparatus increasing the efficiency of the treatment and decreasing the required treatment time.
  • a further object of the invention is to provide such a method and apparatus capable of treating extremely delicate webs without danger of damage.
  • FIG. 1 is a vertical sectional view through one form of apparatus for performing the method of the invention
  • FIG. 2 is a vertical sectional view through another form of apparatus embodying the invention.
  • FIG. 3 is a vertical sectional view through still another embodiment of the apparatus for performing the method of the invention.
  • a substantially U-shaped upright vessel 1 accommodates the maximum possible number of rotatable rollers 2 and 3. These rollers are arranged in the two vertical legs of the vessel in the form of two rolls of rollers which are staggered relative to each other. All of the rollers 2 and 3 have perforated surfaces, so that treatment liquid can reach the textile web from both sides. Additionally, the perforations prevent building up of a liquid cushion between the textile web 14 and the rollers 2 and 3, which buildup would increase the tension in the fabric since the effective circumference of the rolls thereby would be increased.
  • rollers 2 and 3 The arrangement of the rollers 2 and 3 is so selected that they are as near together as possible without touching, so that the free path of textile web 14 between two rolls become so small that web 14 passes through the apparatus supported practically without any interruption. Textile web 14 is guided around rollers 2 and 3 in meander form, and is passed through the apparatus, filled with treatment bath, in the direction of the arrow and treated by the bath during such passage. As the rollers 2 and 3 are very close together, the looping angle becomes relatively large and, for most of the rolls, exceeds 180.
  • the boundary layer penetration is additionally enhanced by the provision of several wide-slot nozzles 4. In view of the relatively high energy consumption needed for operating these nozzles, their use is limited to a small number.
  • the supply of the bath in counter-current to the direction of web movement is effected through the wide-slot nozzle 8 positioned directly below squeeze roller 6, while the other wide-slot nozzles 4 are fed through a line 10 and produce a circulation of the treatment liquid.
  • rollers 2 and 3 are designed as tubular rollers and containing in their interior, displacement bodies 12, whereby the required bath quantity is reduced and, in addition, the treatment bath is channeled.
  • FIG. 2 the apparatus shown therein is suitable preferably for neutralizing or impregnating, and is of somewhat simpler design. However, the basic method of operation is the same as in the embodiment shown in FIG. 1. In contrast to the embodiment shown in FIG. 1, in FIG. 2, a relatively high, upright roll-free inlet and outlet channel means 16 and 17 is provided.
  • the entrance for textile web 14 is provided at the lower end of the vessel. This effects the good seal at the introduction point.
  • the number and arrangement of the rollers depend on the intended treatment process and on the textile material to be treated.
  • the arrangement of the rolls also may be selected 'so that the textile web passes substantially horizontally or otherwise through the vessel.
  • the textile web passes substantially horizontally or otherwise through the vessel.
  • rollers form a row with their axes side by side.
  • a method for the continuous treatment of a textile'web guided along a zig-zag path in a bath formed by a continuous counter-current of flowing treatment liquid comprising the steps of guiding the web positively along its path of movement through the bath while providing substantially uninterrupted support for the web along its path of movement; alternately compressing and stretching both surfaces of the web to eifect simultaneous boundary layer exchange on both surfaces, and directing at least one jet-like stream of treatment liq uid against said web within the bath at an angle relative to the general direction of movement of the web through the bath.
  • the improvement claimed in claim 1 includ ing the step of guiding the web over perforated rollers with the majority of the rollers having a looping angle, of the web, in excess of 180.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
US14361A 1969-02-28 1970-02-26 Method for continuous wet treatment of a textile web Expired - Lifetime US3690814A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH301769A CH512941A (de) 1969-02-28 1969-02-28 Verfahren zum kontinuierlichen Nassbehandeln einer Textilbahn

Publications (1)

Publication Number Publication Date
US3690814A true US3690814A (en) 1972-09-12

Family

ID=4246763

Family Applications (2)

Application Number Title Priority Date Filing Date
US14361A Expired - Lifetime US3690814A (en) 1969-02-28 1970-02-26 Method for continuous wet treatment of a textile web
US00283042A Expired - Lifetime US3772903A (en) 1969-02-28 1972-08-23 Apparatus for continuous wet treatment of a textile web

Family Applications After (1)

Application Number Title Priority Date Filing Date
US00283042A Expired - Lifetime US3772903A (en) 1969-02-28 1972-08-23 Apparatus for continuous wet treatment of a textile web

Country Status (8)

Country Link
US (2) US3690814A (en, 2012)
AT (1) AT313840B (en, 2012)
CH (3) CH504903A (en, 2012)
CS (1) CS151543B2 (en, 2012)
DE (1) DE2006177A1 (en, 2012)
FR (1) FR2037438A5 (en, 2012)
GB (1) GB1292497A (en, 2012)
NL (1) NL7002758A (en, 2012)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1230300B (it) * 1989-07-05 1991-10-18 Sperotto Rimar Spa Apparecchiatura per il trattamento ad umido in continuo di tessuti trama catena e di tessuti a maglia.
ES2079169T3 (es) * 1991-09-23 1996-01-01 Benninger Ag Maschf Procedimiento y dispositivo para tratar una banda de material.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL128808C (en, 2012) * 1963-08-30
US3457740A (en) * 1967-12-19 1969-07-29 Gerber & Co Gmbh Continuous washing machine

Also Published As

Publication number Publication date
CS151543B2 (en, 2012) 1973-10-19
CH504903A (de) 1971-03-31
AT313840B (de) 1974-03-11
CH301769A4 (en, 2012) 1971-06-15
FR2037438A5 (en, 2012) 1970-12-31
NL7002758A (en, 2012) 1970-09-01
GB1292497A (en) 1972-10-11
DE2006177A1 (de) 1970-09-10
US3772903A (en) 1973-11-20
CH512941A (de) 1971-09-30

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