US1965987A - Oiling textile threads - Google Patents

Description

y 4-, A. J. L. MORITZ OILING TEXTILE THREADS Filed Aug. 8, 1933 INVENTORL TTORNEYS.

Patented July 10, 1934 UNITED STATES OILING TEXTILE THREADS Adrianus J. L. Moritz, Buncombe County, N. 0., assignor to American Enka Corporation, Enka, N. C., a corporation of Delaware Application August 8, 1933, Serial No. 684,271

6 Claims.

The present invention relates to oiling textile threads, and more particularly to oiling artificial silk, the oiling operation being preferably combined with the twisting operation. The invention is based upon the use of a sleeve or more or less tubular piece of sheet-form material such as a cloth tube, which is placed upon the twisting spindle inside of the twisting spool, which spool has a perforated core so that oil can travel 10 from the cloth tube through the perforations into the textile thread being wound upon the twisting spool. The centrifugal action is caused by rapid rotation of the twisting spool. In this manner the thread is suitably oiled, during the operation of being twisted, thereby eliminating a separate oiling operation, and thereby effecting an economy in the artificial silk manufacture.

According to the spool spinning-method a great number of filaments are drawn from separate holes in a spinnerette, through a suitable setting bath, and through washing and desulphurizing baths if desired, these threads traveling to a winding spool, which rotates at a predetermined peripheral speed, until the spool is completely filled with the untwisted thread. According to the spinning can spinning method the thread after leaving the spinnerette and the setting bath (and optionally the washing baths and desulphurizing bath) travels to the rapidly rotating 3() bowl of a centrifugal machine, in which the a thread is deposited in the form of a cake of twisted thread. Subsequently the thread from the first mentioned process has to'be given the desired twist. In both cases the thread is subsequently treated with a small amount of an oily material, such as coming oil for purposes well understood in the art.

In accordance with the present invention however, an oiling is performed preferably while the thread is undergoing the twisting operation to improve the formation of "the twisting package and running qualities of the yarn from the spun package. The twisting apparatus consists of a spindle carrying a spool, which spool, in the present case should have a perforated core so that oil can travel through the perforations, into the thread as it is being unwound from the spinning spool. thread is being unwound therefrom, whereby the thread is given the desired amount of twist, pre--- determined for the particular kind of artificial thread being operated upon. In accordance with the present invention a piece of cloth, which may be'in the form of a tube initially, is soaked in a mixture of the desired oils which are to be used The spinning spool rotates freely as'the for that particular thread. The cloth tube, carrying an excess of oil is then usually pressed down to the desired oil content, in any suitable manner, as by being run through a pair of pressure rolls, the pressure being so adjusted as to leave the preferred amount of oil in the cloth tube. The said cloth tube is then placed upon a rotatable spindle, and the spinning spool is then placed on this spindle, outside of the cloth tube. In a modified form of execution of theprocess, the cloth may be a plain strip of cloth, of such a size that when wound around the spindle, it forms a cloth tube.

Apparatus as shown in the annexed drawing can be used for carrying out the process. Said drawing shows the-apparatus in vertical elevation, parts being broken away for clarity of illustration. In said drawing, 1 represents the rotating spindle, 2 is the whorl of same, 3 is the over flange, 4 is the skinning spool, with an upper. flange or cap 5, and 6 is the cloth sleeve.

The winding and twisting operations are performed in the ordinary manner, the rapid rotation of the cloth tube, on the spindle, about its longitudinal axis causes the oil to fiow from the said cloth tube into the thread which is being twisted and wound upon the twisting spool. The cloth for the cloth tube is of course selected to hold the desired amount of oil by impregnation and squeezing, to oil the amount of thread which is to be twisted and wound upon the said twisting spool.

Without restricting the invention to a particular oil to be used in the process, the following example is given of a suitable oil for impregnating the cloth tube 6, which was found to .be'extremely practical to use upon 100 denier 40 filament rayon lustrous yarn;

Acid free, straw color mineral lubricating oil, flash point around 180 C., viscosity Saybolt sec. at 100 F., 99 to 99.5%. Oleic acid 0.5 to 1%v (by weight).

When the treated silk is subsequently treated with an alkaline solution, (e. g. the desulphurizing bath) the oleic acid reacts with the alkali to form a soap which emulsifies the mineral oil, and assists in removal of the latter.

During the high speed rotation of the spinning spool, the amount of oil which leaves the clothtube becomes very uniformly distributed through the rayon thread as it is being unwound from the spinning spool, by centrifugal force and capillarity.

The twister packages" namely the twisted thread upon .the twisting spool, is then in a condition to be readily wound into suitable cops or reeled into skeins for further treatment.

I claim:-

1. A process of oiling textile thread on a perforated spool, which comprises placing inside said spool a cylindrical sleeve of a sheet-form material impregnated with an oil, and thereafter rotating said spool about its axis, together with the sleeve at. a suificient speed to force oil to leave said impregnated sleeve of sheet-form material and to cause same to travel into the said thread on said spool.

2. A process of oiling textile thread on a perforated spool, which comprises placing inside said spool a cylindrical sleeve of a sheet-form material impregnated with an oil, and thereafter rotating said spool about its axis, together with the sleeve at a suflicient speed to force oil to leave said impregnated sleeve of sheet-form material and to cause'same to travel into the said thread on said spool, said operation being combined with a twisting treatment of the said thread.

3. A process of oiling artificial cellulosic thread on a perforated spool, which comprises placing inside said spool a cylindrical sleeve of a sheetform material impregnated with an oil, and thereafter rotating said spool about its axis, together with the sleeve at a sufficient speed to force oil to leave said impregnated sleeve of sheet-form material and to cause same to travel into the said thread on said spool.

in the reticulated spool when rotated by the spinv dle whereby when thread is unwound from the reticulated spool during the rapid rotation thereof oil will be caused to be passed through the openings in the spool and to be distributed within the thread mass.

5. In an apparatus for oiling artificial silk threads and the like, a rotatably mounted spool having a reticulated core, and rotatable absorbent oil impregnated means arranged within the core for efiecting the discharge of oil through the core openings when the spool is rotated, whereby when thread is unwound from the reticulated core during the rotation of the spool oil will be caused to be distributed within the thread mass.

6. A process of oiling textile threads on a perforated holder which comprises the introduction of an absorbent source of supply of a predetermined amount of oil within said holder, and thereafter rotating said holder with the oil source at a suficient speed to force the oil through the perforations of the holder and cause same to impregnate the thread.

ADRIANUS J. L. MORITZ.

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