US2789366A - Method and apparatus for treating textile material - Google Patents

Method and apparatus for treating textile material Download PDF

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Publication number
US2789366A
US2789366A US303747A US30374752A US2789366A US 2789366 A US2789366 A US 2789366A US 303747 A US303747 A US 303747A US 30374752 A US30374752 A US 30374752A US 2789366 A US2789366 A US 2789366A
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United States
Prior art keywords
roller
rollers
dehydration
textile material
threads
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Expired - Lifetime
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US303747A
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English (en)
Inventor
Schrenk Hans Alwin
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Akzona Inc
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American Enka Corp
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Publication date
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/001—Drying and oxidising yarns, ribbons or the like
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/04—Supporting filaments or the like during their treatment
    • D01D10/0436—Supporting filaments or the like during their treatment while in continuous movement
    • D01D10/0463—Supporting filaments or the like during their treatment while in continuous movement the filaments being maintained parallel
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/06—Washing or drying
    • 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

Definitions

  • Another problem is encountered in the continuous drying of a large number of threads moving in the shape of a flat sheet at a speed of 80-100 meters per minute or more. It is particularly diflicult to obtain an even drying of all of these rapidly moving threads loaded with large quantitles of water.
  • the threads are passed through a space in which hot air is circulating in order to dry them.
  • Another method that is used involves passing the threads over heated rollers.
  • the foregoing methods are also used for drying woven fabrics and sized warps, etc. It is obvious that when using any of these methods of drying, it is preferable to supply the threads to the actual drying apparatus with as low a moisture content as possible. It is for this reason that the textile material, either in the form of a sheet of threads, or a single thread, or in the form of a warp or fabric, is often subjected to a preliminary moisture reducing treatment before it comes into contact with the actual drying system proper.
  • a preliminary treatment for example, may consist of passing threads over guiding members which strip off a large part of the adhering moisture.
  • 83 means of pressure rollers it is possible to reduce the water content of a freshly spun cellulose thread to about 275%, calculated on the dry substance.
  • This invention has as an object to overcome the above disadvantages in reducing the liquid content of a continuously moving textile material.
  • a further object is to provide a method and apparatus for reducing the liquid content in an endless length of textile material within very narrow limits.
  • a still further object is to provide a method and apparatus for reducing the moisture content in a moving textile material without exerting undesirable influences on the material.
  • Another object of this invention is to provide a method and apparatus for reducing the moisture content in a sheet of viscose rayon threads manufactured according to a continuous process.
  • Figure 1 is a diagrammatic elevation of a general scheme for practicing the invention
  • Figure 2 is a sectional view through a dehydrating roller from which the moisture is removed by means of a stripping member with sucking action;
  • Figure 3 is a schematic drawing showing a dehydrating roller from which the water is removed by means of a pressure roller held in place against the dehydrating roller by spring tension;
  • Figure 4 is a diagrammatic elevation showing a modified form of the invention.
  • Figure 5 is a diagrammatic elevation of a drying scheme wherein the material contacts the dehydrating rollers alternately on one side and then on the other.
  • the textile material is caused to move into contact with a rotating dehydration roller while the moisture which is deposited on the roller is continuously removed or extracted from the roller at a location where the textile material is not in contact with the roller. If desired, more than one such dehydration roller may be used.
  • the thread or other textile material is caused to move in contact with a single dehydrating roller as, for example, by passing the material over lower guiding rollers disposed on each side of the dehydrating roller.
  • the rollers may be positively driven, but it is also possible to construct the rollers and especially the guiding rollers as freely rotatable rollers so that they are rotated by the threads.
  • the dehydration roller is constructed of some material which is readily wetted out by the film forming liquid being removed from the thread or other textile material.
  • the liquid film deposited on the dehydrating roller is regularly and continuously removed from the roller by means of a stripping member disposed at its lower side or at any other location around the roller except where the textile material contacts the roller.
  • one dehydrating roller gives such a reduction in moisture content that in practice no additional dehydration is needed. If, after passing over one dehydration roller the threads still contain free water, i. e., water which is not present in colloidal form in the fibers but in capillary form between the single filaments of the threads, additional dehydration rollers may be needed.
  • a series of spaced rotatable cylindrical dehydration rollers, 10, 11, 12, etc. are suit ably mounted for rotation about their respective axes.
  • Dehydration rollers 19, 11, 12, etc. are connected to suitable driving means (not shown) so that the continuous length of textile material 13 will be conveyed from one roller to the next.
  • Disposed between dehydration r llers 10, 11, 12, etc. are freely rotating guiding rollers 14, 15, 16, etc., which serve to properly position the moving textile material for contact with each dehydration roller.
  • Dehydration rollers ll 11. 12, etc. may be constructed of completely smooth stainless steel or any other suitable material. The surface of these rollers may, if desired, be covered with a layer of smooth rubber.
  • porous wiping members 17, l3, 19, etc. extend throughout the length of the respective rollers and are preferably constructed of a porous elastic material such as sponge rubber. It will be readily understood that the dehydration rollers, all of which rotate in one direction, remove liquid from the textile material 13. The liquid which is taken up on the dehydration rollers 10, 11, 12, etc., is in turn removed from these rollers by wiping members 17, 18, 19, etc., respectively, so that the textile material 13 contacts a substantially dry surface as it initially touches each dehydration roller.
  • the peripheral speed of at least one dehydration roller is greater than the linear speed of the textile material, so that the material runs in such a way that slippage occurs over at least one of the rollers.
  • the dehydration rollers may be heated by circulating hot water or steam into the interior thereof, or they may be electrically heated.
  • the assembly just described will of course be positioned immediately in front of the final drying apparatus in a process for treating an endless length of textile material.
  • FIG. 2 illustrates a dehydration roller 2%) provided with a wiping member 21, such as the ones described above.
  • Wiping member 21, which extends the length of dehydration roller 2% is mounted in a box-like housing 22.
  • a discharge tube 23 is connected to the bottom of housing 22.
  • Discharge tube 23, may, if desired, be connected to a source of vacuum (not shown).
  • a source of vacuum not shown.
  • the porous wiping member 21 absorbs the excess liquid from dehydration rol'ler 2i and the liquid is carried downward through the porous wiping member 23 by means of gravity.
  • the liquid removed from the roller 2t? eventually i'lows into discharge tube 23.
  • discharge tube 23 is connected to a source of vacuum, it is not necessary for wiping member 21 to be disposed at the lowest point of roller since the vacuum will keep the wiping member 21 in a reasonably dry condition at all times.
  • FIG. 3 illustrates another method for removing the liquid from the dehydration roller.
  • driven dehydration roller 28 is mounted in abutting relation with a freely rotatable pressure roller 29.
  • the axle of pressure v is also made of rubber, as a result of which an uninterexample, l00150%.
  • Outer surface 33 of pressure roller 29 may be made of felt or other yieldab'le material, if desired, instead of rubber.
  • Liquid accumulating on dehydration roller 28 moves, just as in Figure 2, over the zone 3435 in the same direction as the dehydration roller, but cannot pass the line of contact between dehydration roller 28 and pressure roller
  • the liquid removed from the textile material 3d collects in the narrow space between the rollers designated at 37. Removal of this liquid is effected by a self-adjusting axial flow toward the outer ends of the rollers where, if desired, a stripping or suction member (not shown) may be provided in order to prevent splashing and to expedite the flow of liquid.
  • Figure 4 shows an embodiment of the invention where a single larger driven dehydration roller 38 is used to perform the function of a plurality of dehydration rollers, such as those in the arrangement shown in Figure 1.
  • a series of spaced guide rollers 39, 40, 41, 42, 43, 4 4-, etc. are arranged that the thread 45 is alternately passed into and out of contact with rotating dehydration roller 38.
  • wiping members 4-6, 47, 48, etc. are of the general type described in Figure l and are mounted in abutting relation with roller 38.
  • rollers 39, 41, 42, 44, etc. do not press against dehydration roller 38 but are mounted sufficiently close thereto to insure that the thread 45 will pass in contact with the dehydration roller.
  • dehydration roller 38 which is mechanically driven
  • the other rollers can be driven by the moving textile material, although the other rollers may be mechanically driven, if desired, as for example, in the case Where roller 33 is driven more rapidly than the moving textile material.
  • FIG. 5 The embodiment shown in Figure 5 is in principle the same as that shown in Figure 3.
  • a series of spaced driven cylindrical dehydration rollers 49, 59, 51 are disposed so that alternately one side and then the other of greases the textile material 52 comes in contact with the dehydration rollers.
  • Freely rotatable pressure rollers 53, 54, 55, of the type shown in Figure 3 are mounted in abutting relation with corresponding dehydration rollers 49, 50, 51.
  • This embodiment is particularly advantageous in dehydrating thicker thread bundles or textile materials moving at a high rate of speed.
  • the apparatus of this invention is especially useful in dehydrating textile materials moving at a speed of 60-100 111. per minute or more it will be understood that the diameter of the rollers must be chosen so that at these excessive speeds the liquid is not centrifuged from the rollers.
  • the textile material treated according to this invention may consist of a fabric, a warp, or warp-like combination of threads.
  • the above-described method and apparatus is in general not intended to completely remove the moisture from textile materials but primarily functions to reduce the moisture content in such materials to a uniform, low concentration throughout such material for final drying by other means. Since an even moisture content is obtained throughout the textile material, the objective of obtaining a subsequent even drying is particularly facilitated and a considerable improvement in the quality of the continuously dried threads or other textile material is achieved. Moreover, the material, especially in the case of individual threads, is not subject to damage by mechanical action during pressing.
  • a process for reducing the liquid content in an endless sheet of threads comprising the steps of continuously grinding said material into substantial surface contact with each of a plurality of spaced rotating rollers, rotating at least one of said rollers so that its peripheral speed is higher than the linear speed of said material, and continuously removing the moisture without scraping from each of said rollers at a location on the outside periphery of each of said rollers where said material is not in contact with said rollers.
  • Apparatus for reducing the liquid content in an endless length of textile material comprising a series of spaced rotatable rollers, each of said rollers being disposed so said material may be passed in contact with a portion of the periphery thereof, suction means for continuously removing moisture from each of said rollers, the inlet of said suction means being disposed on the outside periphery of each of said rollers at a location where said material is not in contact with said rollers, and means for driving at least one of said rollers so that its peripheral speed is higher than the linear speed of said material.
  • Apparatus for reducing the liquid content in an endless length of textile material comprising a rotatable roller, means for guiding said material into contact with a plurality of separate contact areas around the periphery of said rotatable roller, means disposed intermediate said areas of contact for continuously removing the moisture without scraping from said rotatable roller, and means for rotating said rotatable roller.
  • a process for reducing the liquid content in a sheet of saturated thread material of indefinite length comprising the steps of guiding said material alternately into and out of engagement with a plurality of contact areas around the periphery of a rotating roller whereby the liquid is transferred from the material to the roller, driving said roller and continuously removing the liquid from the outer surface of the roller at areas not contacted by the material.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treatment Of Fiber Materials (AREA)
US303747A 1951-08-24 1952-08-11 Method and apparatus for treating textile material Expired - Lifetime US2789366A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2789366X 1951-08-24

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US2789366A true US2789366A (en) 1957-04-23

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BE (1) BE510528A (xx)
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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1660640A (en) * 1926-11-11 1928-02-28 Eduard V Asten Paper-making machine
US2209758A (en) * 1937-01-15 1940-07-30 Beloit Iron Works Felt arrangement for horizontal press rolls
US2209759A (en) * 1937-06-28 1940-07-30 Beloit Iron Works Absorbent press roll assembly
US2253511A (en) * 1937-05-01 1941-08-26 News Projection Corp Paper treating machine
US2317144A (en) * 1942-07-06 1943-04-20 Fmc Corp Water eliminator
US2381766A (en) * 1941-04-03 1945-08-07 Katherine B Mayer Apparatus for removing water from paper webs
US2433122A (en) * 1944-03-20 1947-12-23 Beloit Iron Works Felt and drum assembly for drying webs
US2436028A (en) * 1944-12-19 1948-02-17 American Viscose Corp Microporous roll for drying continuous filaments
US2465214A (en) * 1946-10-09 1949-03-22 Du Pont Yarn drying apparatus

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1660640A (en) * 1926-11-11 1928-02-28 Eduard V Asten Paper-making machine
US2209758A (en) * 1937-01-15 1940-07-30 Beloit Iron Works Felt arrangement for horizontal press rolls
US2253511A (en) * 1937-05-01 1941-08-26 News Projection Corp Paper treating machine
US2209759A (en) * 1937-06-28 1940-07-30 Beloit Iron Works Absorbent press roll assembly
US2381766A (en) * 1941-04-03 1945-08-07 Katherine B Mayer Apparatus for removing water from paper webs
US2317144A (en) * 1942-07-06 1943-04-20 Fmc Corp Water eliminator
US2433122A (en) * 1944-03-20 1947-12-23 Beloit Iron Works Felt and drum assembly for drying webs
US2436028A (en) * 1944-12-19 1948-02-17 American Viscose Corp Microporous roll for drying continuous filaments
US2465214A (en) * 1946-10-09 1949-03-22 Du Pont Yarn drying apparatus

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BE510528A (xx)

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