US3613407A - Apparatus and method for treating moving yarns with a liquid - Google Patents

Apparatus and method for treating moving yarns with a liquid Download PDF

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Publication number
US3613407A
US3613407A US808100A US3613407DA US3613407A US 3613407 A US3613407 A US 3613407A US 808100 A US808100 A US 808100A US 3613407D A US3613407D A US 3613407DA US 3613407 A US3613407 A US 3613407A
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United States
Prior art keywords
trough
disc
liquid
yarn
periphery
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Expired - Lifetime
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US808100A
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English (en)
Inventor
Geoffrey P Graham
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Rhodiaceta SA
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Rhodiaceta SA
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Publication date
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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
    • D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/10—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material
    • D06B1/14—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller

Definitions

  • yarn is to be understood as any filamentous material which is in the form of continuous filaments or of spun yarns of discontinuous fibres, by themselves or arranged in webs of narrow width.
  • a conventional apparatus for lubricating or sizing moving filamentous materials comprises a rotating disc which picks up by capillary action the treatment liquid contained in a trough, and deposits it on the yarn by rubbing.
  • Such a device though used industrially, suffers from the disadvantage of not depositing the liquid on the yarn with sufficient uniformity. In studying this phenomenon it is found that even if the liquid feed is regular, not all the liquid circulates throughout the trough and there is a main stream and there are zones outside this stream in which the liquid stagnates.
  • the liquid located in the stagnation Zones remains in prolonged contact with air, oxidises and hardens to form skins which become detached from time to time and become attached to the yarn, resulting in abrupt variations in tension during the subsequent handling of the yarn.
  • apparatus for treating moving yarns with a liquid comprising a circular disc rotatable about its axis, means for rotting the disc in a given direction, a trough located below the disc, with the lower portion of the periphery of the disc within said trough, the width of said trough being only slightly greater than te axial length of the disc to provide a scall clearance therebetween, an inlet to the trough and an outlet disposed downstream of the inlet in the direction of movement of the lower portion of the periphery of the disc within the trough, and means to feed liquid to the inlet of the trough.
  • the invention further provides a method of treating a moving yarn with a liquid, said method comprising the steps of rotating a circular disc about its axis with the lowermost periphery in a trough, the width of which is only slightly greater than the axial length of the disc;
  • the liquids which can be used with the apparatus and method according to the invention may be in various forms such as oils or glues, by themselves or dissolved in an appropriate solvent or dispersed in water.
  • the viscosity of these liquids is preferably chosen to be rather low, generally of the same order as that of water, when dealing with emulsions or aqueous dispersions, and of the order of about ten centistokcs for oily products alone.
  • the rate of flow of the liquid may vary, thus depending on the amount which one wishes to apply to the yarn. Flow rates of between 0.5 and 1.5 litres/minute are suitable.
  • the peripheral speed of the disc is, in a known manner, distinctly greater than that of the flow of liquid in the trough. This speed has to be increased if one wishes to increase the amount of liquid on the yarn substantially. In order to increase or reduce the amount of liquid to lesser extents, one merely respectively reduces or increases the rate of flow of the liquid.
  • the treatment disc must be simultaneously in contact with the liquid in which it is partly immersed and with the yarn which is to be treated.
  • the position of the yarn relative to the disc is adjusted by means of gudes upstream and downstream of the treatment device. This position is preferably so adjusted that the yarn is at a tangent to the disc, or describes a small encircled are on the latter.
  • the speed of passage of the yarn over the disc may assume various values, from some tens up to several thousands of metres per minute.
  • FIGS. 1 and 2 schematically represent a longitudinal section and top plan view respectively of one embodiment of trough used in the apparatus according to the invention
  • FIGS. 3 and 4 are similar views of a second embodiment of trough.
  • FIG. 5 is a side elevation of one form of apparatus employing a trough similar to that illustrated in FIGS. 1 and 2 or FIGS. 3 and 4.
  • FIG. 5 of the drawings there is illustrated a trough 1, and provided with a liquid inlet 2 and liquid outlet 3. Below the outlet is a reservoir 10 from which liquid is drawn by a metering pump 11 and fed to the inlet.
  • a suitable connection 12 may be provided to control the speed of the pump as a function of the speed of rotation of a disc 5, the lower periphery of which dips into the trough, the disc rotating in the direction of the yarn.
  • Yarn 8 is guided by yarn guides 9, so as to touch and pass around a small arc of the periphery of the disc.
  • trough 1 illustrated in FIGS. 1 and 2 is such that the inlet 2 and an outlet 3 both extend over the entire width of the trough 1 and define a central liquid uptake zone 4. Liquid is fed to the inlet 2 via a feed pipe 20.
  • the vertical disc 5 Above the bottom of the trough is arranged the vertical disc 5, the thickness of which is very slightly less than the width of the trough, with a play which just alloys the disc to move without rubbing against the sides of the trough.
  • the distance between the bottom of the disc and the bottom of the trough is of the order of a few millimetres.
  • the disc is connected by a shaft to an appropriate device for rotating it, which is not shown in FIGS. 1 and 2.
  • the trough bottom Immediately downstream of the lowermost portion of the periphery of the disc in the direction of flow of the liquid and of rotation of the disc, the trough bottom has 3 a radial portion 6, which rises progressively towards an overfiow 7.
  • the trough illustrated in FIGS. 3 and 4 comprises the same components designated by the same reference numerals and furthermore shows an improvement in the means for regularising the flow of the liquid, which consists of a widening of the sides of the trough adjacent and downstream of the lowermost portion of the periphery of the disc.
  • a further purpose of this widening is that if several separate and essentially parallel yarns are treated simultaneously, one avoids depositing too small an amount of liquid on the external yarns.
  • the length of the life of the lubricant is considerably increased, thereby correspondingly reducing the frequency with which the troughs are cleaned.
  • the number of spinning stoppages is reduced and the profitability of the spinning process is improved.
  • a trough such as that represented in FIGS. 3 and 4 was used, in which the disc had a thickness of 50 mm. and the trough a width of 55 mm. from the inlet up to the vertical projection of the axis of the disc on to the trough.
  • the peripheral speed of the disc was 4.25 metres/minute; the trough was fed at the rate of 1 litre/minute with an aqueous emulsion containing by weight of a mixture of a mineral oil and a non-ionic emulsifier.
  • the aver age speed of flow of lubricant in the trough was 2.10 metres/minute.
  • Apparatus for treating moving yarn with a liquid comprising, in combination:
  • (g) means to feed liquid to the inlet of said trough.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
US808100A 1968-03-18 1969-03-18 Apparatus and method for treating moving yarns with a liquid Expired - Lifetime US3613407A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR144242 1968-03-18

Publications (1)

Publication Number Publication Date
US3613407A true US3613407A (en) 1971-10-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
US808100A Expired - Lifetime US3613407A (en) 1968-03-18 1969-03-18 Apparatus and method for treating moving yarns with a liquid

Country Status (6)

Country Link
US (1) US3613407A (fr)
AT (1) AT296202B (fr)
CH (1) CH485493A (fr)
DE (1) DE6910867U (fr)
ES (1) ES364918A1 (fr)
FR (1) FR1583446A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2321564A1 (fr) * 1975-08-21 1977-03-18 Bayer Ag Procede pour l'application de quantites de liquides dosees sur des monofilaments, multifilaments, meches, cables et structures textiles planes
EP0769582A1 (fr) * 1995-10-10 1997-04-23 Chimitex S.A.R.L. Dispositif pour l'encollage de fils de chaîne

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2321564A1 (fr) * 1975-08-21 1977-03-18 Bayer Ag Procede pour l'application de quantites de liquides dosees sur des monofilaments, multifilaments, meches, cables et structures textiles planes
EP0769582A1 (fr) * 1995-10-10 1997-04-23 Chimitex S.A.R.L. Dispositif pour l'encollage de fils de chaîne

Also Published As

Publication number Publication date
FR1583446A (fr) 1969-10-31
AT296202B (de) 1972-02-10
DE6910867U (de) 1970-03-12
ES364918A1 (es) 1971-01-01
CH485493A (fr) 1970-02-15

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