US3708262A - Method and apparatus for scouring raw loose wool - Google Patents

Method and apparatus for scouring raw loose wool Download PDF

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Publication number
US3708262A
US3708262A US00081043A US3708262DA US3708262A US 3708262 A US3708262 A US 3708262A US 00081043 A US00081043 A US 00081043A US 3708262D A US3708262D A US 3708262DA US 3708262 A US3708262 A US 3708262A
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United States
Prior art keywords
scouring
wool
liquid
bath
washing
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Expired - Lifetime
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US00081043A
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English (en)
Inventor
M Watanabe
H Mizoguchi
M Hoshikawa
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Kanegafuchi Spinning Co Ltd
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Kanegafuchi Spinning Co Ltd
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01B—MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
    • D01B3/00—Mechanical removal of impurities from animal fibres
    • D01B3/04—Machines or apparatus for washing or scouring loose wool fibres
    • D01B3/08—Machines or apparatus for washing or scouring loose wool fibres with longitudinal movement of either wool or liquid

Definitions

  • the present invention relates to an improvement in a method for washing and scouring loose raw wool and to an apparatus used therefor, more particularly, to a method and an apparatus for scouring loose wool, wherein the scouring liquid passes evenly through the fiber mass, whereby a homogeneous scouring effect is attained and felting of loose fibers can be prevented.
  • the present invention provides an excellent method for scouring raw Wool and an apparatus suitable for conducting said method, which can be advantageously carried out on an industrial scale and which does not cause degradation in the quality of the fiber.
  • the principal object of this invention is to provide an effective method for scouring raw loose wool by conveying it in a layer placed between two conveyor nets, wherein the scouring liquid passes evenly through the layer and homogeneous scouring is effected.
  • Another object of this invention is to avoid relative movement of fibers placed between the two conveyor nets thereby preventing degradation in fiber quality due to felting phenomenon of the fiber.
  • a further object of the invention is to provide a method for performing homogeneous scouring by forming a fiber layer of a relatively low apparent specific gravity, not too compressed, and thus permitting the scouring liquid to pass smoothly through the layer.
  • a still further object of the invention is to enhance the above-described effective scouring, by separating from loose wool foreign matter e.g., soil and dirt, contained therein, immediately after loosening the raw Wool and thereafter feeding the fiber in a homogeneous layer to a scouring bowl.
  • loose wool foreign matter e.g., soil and dirt
  • An additional object of the invention is to provide a scouring apparatus suitable for accomplishing said method.
  • one of the essential features of the present invention resides in a method for washing and scouring loose wool, which comprises conveying raw loose wool from which at least a part of the soil and dirt has been separated beforehand by washing, in a layer placed between two net conveyors mounted in parallel and movable along a given path through a liquor scouring bath, supplying said bath with scouring liquid under substantially no pressure from a scouring liquid feeding device which is positioned above said path and drawing the scouring liquid by an uptake suction means positioned below the said path, whereby diifusion flow of the scouring liquid occurs as it passes entirely through the fiber laver from above to below.
  • Another feature of the invention relates to an apparatus for performing the said washing and scouring, characterized by comprising a scouring bowl containing a scouring liquid, a pair of endless net conveyors mounted one above the other for conveying a continuous lap of raw loose wool placed therebetween along a path through the scouring liquid, said path being preferably at a level of 40-60 mm. beneaths the liquid surface, a scouring liquid supply means of the overflow type positioned above said path and an uptake suction means arranged below said path in the liquid.
  • a further feature of the present invention is a method for washing and scouring raw loose wool which further comprises, in addition to the above mentioned steps, a preliminary washing carried out prior to the above mentioned steps, comprising letting raw loose wool fall into a washing bath, floating the wool down towards the rear of the bath by the action of liquid flow, separating from the wool foreign matters such as soil and dirt contained therein through a perforated plate at the bottom of the liquid bath while the wool is travelling along the surface of said plate, and forming the loose wool into a layer having a uniform thickness which is thereafter subjected to the subsequent method.
  • FIG. 1 is a schematic side elevational view of a preferred embodiment of the apparatus of the present invention which is used for the preliminary washing of loose wool prior to scouring;
  • FIG. 2 is a plan view corresponding to FIG. 1;
  • FIG. 3 is a schematic side elevational view of an em bodiment of the apparatus of the invention which is suitably used for the scouring method;
  • FIG. 4 is a plan view corresponding to FIG. 3;
  • FIG. 5 is a side elevational view on an enlarged scale showing the washing bath in FIG. 1.
  • the raw wool to be washed W is scatteringly supplied and falls down through a hopper feeder H into a washing bath 1, where foreign matter contained in the wool is separated.
  • a circulated washing liquid is jet-sprayed through the circulation pipes 3 while decreasing the water jet pressure by shelter plate 2, whereby the raw wool W is forcibly fed into the washing bath 1 from the bottom of the hopper.
  • the raw wool W flows slowly into the bath 1 and travels towards the rear of the bath, during which time the washing liquid is sprayed through a spray pipe 4 which are arranged above the bath 1 thereby diffusing and floating smoothly the raw wool W and at the same time, separating from the wool soil and dirt contained therein.
  • the loose fiber floating in the washing liquid which has reached the rear end of the washing bath 1 is floated over a baflie plate 5 and is moved onto an adjacent net conveyor 6 and is depositing thereon.
  • the loose Wool to be scoured thus deposited and piled on the net conveyor 6 forms a layer of a uniform thickness saturated with washing liquid.
  • the layer of wool is squeezed slightly by an intermediate press roll 7 into a uniform lap.
  • a spray pipe 8 is provided for preventing the fiber from winding around the intermediate roll 7.
  • the raw wool conveyed by the net conveyor 6 is subsequently transferred by a sponge roll 9 onto a feed net conveyor 10, and then is fed into the nip of squeeze roll 11 where it is squeezed under pressure.
  • the loose wool in a homogeneous layer W is subsequently transferred to the scouring bowl 18 without any unevenness by means of a delivery conveyor 12.
  • the hopper wall In order to facilitate the charging of the raw wool through the hopper H into the washing bath 1 along with the circulated washing liquid and in view of the long path of fall, it is preferred to form the hopper wall inclined steeply so that the raw wool can slide down smoothly along the slope of wall.
  • the charged wool is then pushed by the pressure of liquid sprayed from the pipes 3 and shifted to a gently inclined plane with liquid flow, while foreign matter such as soil and dirt contained in the raw wool falls to the bottom of the washing bath.
  • the deposited amount is usually largest at the inlet portion and gradually decreases as the baflle plate 5 is approached where it is smallest. For instance, there could happen a case in which the height of the deposit is 60 mm. at the inlet portion and 20 mm.
  • a perforated plate 13 is employed to permit only foreign matter to pass through the perforations thereof and the foreign matter deposited on the lower bottom is discharged intermittently by means of mud discharge valve 14.
  • the raw loose wool conveyed by the conveyor net 6 is delivered by the sponge roll 9 and the feed net conveyor 10 to the squeeze roll 11. After squeezing, it is fed into the scouring bowl by the delivery conveyor 12 and thereafter subjected to scouring.
  • the construction and design may also be altered in such a manner that washing can be repeated on a successively installed conveyor net similar to the conveyor net 6, without used the sponge roll 9, feed net 10, etc.
  • the raw wool is washed sufliciently by a washing liquid and transferred to the following scouring step.
  • the method for separating from raw wool at least a part of inpurities contained therein by Washing as described above is most effective and preferred as a preliminary washmg.
  • a washing and scouring method of a conventional fork type may also be employed, as a preliminary washing.
  • the washing bath which is shown in FIGS. 1 and 2 is replaced with a fork type washing bowl.
  • a pair of net conveyors 19 and 22 are mounted one above the other, and these conveyors carry a layer of wool W washed previously in the preceding process and placed between the net conveyors, along a path through scouring liquid in the bowl 18 and delivers the layer to squeeze rolls 31, 31 mounted at the back or discharge end of the bowl 18.
  • the path of the layer through scouring liquid is preferably at a level of approximately 40-60 mm. beneath the liquid surface.
  • Tension rolls 30 are arranged transversely to the net conveyors under the wool holding part of the conveyor.
  • An overflow type diffusion channel 25 for supplying the scouring liquid is positioned above the path, in the liquid, of the wool layer.
  • Uptake suction means 28 for drawing scouring liquid are arranged under the above mentioned path of the wool layer in the liquid.
  • Said overflow type diffusion channel 25 is provided with the feeding pipe 26 encased therein having a slit 27 at its bottom. The scouring liquid fed out through the slit 27 into the diffusion channel 25 is flowed over the side wall thereof and falls down into the scouring bowl 18.
  • the position of the channel 25 is the same or slightly above the liquid level, and a plurality of the channels are arranged spaced apart an appropriate distance.
  • Three diffusion channels 25 are mounted in the apparatus shown in FIGS. 3 and 4, but the number is non-limitative and may be determined appropriately depending on the length of the net conveyors 19, 22 and period of the treatment time.
  • the uptake suction means 28 under the path of the wool layer through the liquid has the suction slit 29 at its bottom, so that the scouring liquid is sucked upwardly from below.
  • This uptake suction means 28 is preferably positioned below and midway between adjacent diffusion channels, not right below the diffusion channel 25, whereby the liquid is permitted to permeate homogeneously through the wool layer over a Wide range.
  • the number of the suction means 28 may be determined to conform to the number of the diffusion channels 25.
  • the feeding pipe 26 and the suction means 28 are connected with each other so that the scouring liquid may be circulated.
  • An example of the connected circulation route is illustrated in FIG. 4, wherein the subsidiary tank 32 is equipped at one side of the scouring bowl 18 and the scouring liquid circulating through the bowl 18 and tank 32 is drawn by the suction means 28 and fed into the subsidiary tank 32 through a pipe 34.
  • the liquid in the subsidiary tank 32 is then fed into the diffusion channel 25 through the slit 27 of the feeding pipe 26.
  • grease and soil separated from the raw wool layer W are gradually precipitated and deposit on the bottom of the subsidiary tank 32 as well as that of the souring bowl 18, and then are discharged outside by suitable means.
  • fresh scouring liquid is successively supplied into the circulation route.
  • the feeding means 26 is a manifold comprising a main pipe 33 and branched pipes 33a, 33b, 33c; the last suction pipe 34a at the farthermost end of travelling layer is independently connected to the subsidiary tank 32 and the other suction pipes are connected by a feedback pipe 34 to the subsidiary tank 32.
  • the circulation system to be employed in the present invention is not limited to such a system as described above, but any other circulation system can be adopted at ones discretion,
  • suction means 28 is provided at its bottom with the slit 29, it is possible to cause a homogeneous flowing of liquid over a wide range of the bath without any localized flowing as occurs in the conventional arrangement in 'which a suction nozzle faces a jet nozzle.
  • the present invention since scouring is carried out by means of a steady vertical flow of the scouring liquid, there is caused substantially no relative movement of raw wool fiber being conveyed, which prevents felting of the fiber mass.
  • the thickness and apparent specific gravity of the raw wool placed between conveyor nets are preferably such that the scouring liquid is permitted to pass smoothly through the layer and accordingly, it is not necessary to compress strongly the wool layer by and between conveyor nets, wherefor it is possible to make the fiber under relatively free condition with a proper thickness.
  • the flowing stream which permeates through the raw wool W and is drawn into the suction means 28 is so gentle and steady that there is no possibility for the impurities of the raw wool precipitated and deposited on the bottom of the bowl to rise and float in the circulating stream liquid, so that according to the present invention, an effective scouring can be accomplished.
  • a method of scouring washed raw wool utilizing upper and lower, opposed, net conveyor belts movable in parallel paths through a liquid scouring bath, said paths each including a substantially horizontally extending portion submerged in said bath, and suction means disposed in said bath below said horizontally extending portion of said lower belt, the method comprising the steps of:

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
US00081043A 1969-10-20 1970-10-15 Method and apparatus for scouring raw loose wool Expired - Lifetime US3708262A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP44083693A JPS5012009B1 (ja) 1969-10-20 1969-10-20

Publications (1)

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US3708262A true US3708262A (en) 1973-01-02

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US00081043A Expired - Lifetime US3708262A (en) 1969-10-20 1970-10-15 Method and apparatus for scouring raw loose wool

Country Status (7)

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US (1) US3708262A (ja)
JP (1) JPS5012009B1 (ja)
BE (1) BE757747A (ja)
CH (2) CH529226A (ja)
DE (1) DE2051478C3 (ja)
FR (1) FR2066181A5 (ja)
GB (1) GB1332685A (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3762188A (en) * 1972-04-05 1973-10-02 Pvo International Inc Apparatus for treating textile fibers in staple fiber form
US4025304A (en) * 1974-09-14 1977-05-24 Vepa Ag Process for the wet treatment of tension-free guided material
US4176531A (en) * 1974-09-14 1979-12-04 Vepa Ag Apparatus for the wet treatment of tension-free guided material
CN106702640A (zh) * 2017-03-02 2017-05-24 响水县嘉禾纺织制衣有限公司 一种纺织棉絮用清洗装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4008870C2 (de) * 1990-03-20 1995-06-01 Breitenbach Ag Bandfabrik Verfahren zur kontinuierlichen Entfeuchtung und anschließenden Stauchung eines flächigen Textilgutes wie Gewebe, Gewirke oder unstrukturierten Materials sowie Vorrichtung zur Durchführung des Verfahrens

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3762188A (en) * 1972-04-05 1973-10-02 Pvo International Inc Apparatus for treating textile fibers in staple fiber form
US4025304A (en) * 1974-09-14 1977-05-24 Vepa Ag Process for the wet treatment of tension-free guided material
US4176531A (en) * 1974-09-14 1979-12-04 Vepa Ag Apparatus for the wet treatment of tension-free guided material
CN106702640A (zh) * 2017-03-02 2017-05-24 响水县嘉禾纺织制衣有限公司 一种纺织棉絮用清洗装置

Also Published As

Publication number Publication date
GB1332685A (en) 1973-10-03
DE2051478C3 (de) 1975-07-31
CH1545670A4 (ja) 1972-06-30
CH529226A (de) 1972-06-30
DE2051478A1 (de) 1971-05-06
JPS5012009B1 (ja) 1975-05-08
FR2066181A5 (ja) 1971-08-06
DE2051478B2 (de) 1974-12-05
BE757747A (fr) 1971-04-01

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