JPS6030379B2 - Method and apparatus for applying liquid to a moving thread line - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates generally to synthetic fiber manufacturing methods, and more particularly to an improved method and apparatus for applying liquid finishes to yarns, ribbons, and hemp yarns.

In the manufacture of synthetic yarn, it is common practice to apply a composition of chemical components in liquid form to the yarn line of the yarn.

Typically, these liquid finishes are applied by advancing the thread line of a running yarn into contact with the surface of a rotating roll into a liquid reservoir containing the desired finish, or by dispensing with the tip odor of a stationary applicator. It is applied by using a mist which is applied from a metering pump. The finishing composition is
Traditionally, it has been limited to low viscosity solutions or emulsions of oil in (large amounts of) water. Fibers do not necessarily require low viscosity or water, but this is because the conventional finish application machines mentioned above cannot handle high viscosity liquids properly and without applying excess chemical to the thread line. It was inevitable. On the other hand, there are no non-aqueous alternatives to water that are non-toxic, non-twisting and low cost. Current textile technology is therefore somewhat limited due to the shortcomings of conventional finish application machines. This limits the processing of the fibers, limits the products that can be manufactured, and increases the cost of manufacturing the fibers. Furthermore, some of the aqueous finishes have poor rollability and others have poor emulsion stability. The present invention provides a new means for applying finishes to yarn lines of yarn without the above-mentioned disadvantages.

The method and apparatus of the present invention can be aqueous or non-aqueous, homogeneous or heterogeneous, emulsifying or non-emulsifying, wet or non-wet,
It has the potential to apply low and high viscosity fluids of all types and compositions, regardless of their composition. This method involves supplying a liquid finishing agent as a continuous metered stream to the spray surface at the tip of an ultrasonic vibrator, and then passing the thread very close to the tip of the vibrator while the liquid is atomized by a vibrator and propelled onto a yarn.
ing). A gap pump is used to supply the vibrating finish applicator with an accurately metered amount of finish or component per yarn line. If two or more fluid streams are required per yarn line, the fluids may be fed as metered streams to a mixing castle just before the point of application where they are mixed before or during atomization. , or the fluid is coupled directly to the tip of the applicator in separate streams.

In a preferred embodiment of the device, the internal passageway within the tip of the ultrasonic vibrator (temperature passa bag) is made such that the filaments of the thread line are collected to the east of the junction, and the oblique throttle is It is provided at the leading end to facilitate string up. The vibration is
In addition to atomizing and spraying the liquid finish onto the yarn, it slightly warms the liquid finish, homogenizes the separate finish components, and cleans the orifice on the back surface near the tip of the vibrator and vibrates the finish. Minimize yarn friction within the agent application machine. FIG. 1 is a system diagram showing the use of the finishing agent application machine at two locations in the yarn manufacturing process. Figure 2 shows
FIG. 2 is an elevated plan view of a vibrator used in a finish applicator in a first position; FIG. 3 is an end view of the tip of the vibrator in a first position.

FIG. 4 is a cross-section of FIG. 3 taken along line 4--4.

FIG. 5 is a top view of FIG. 3.

Figure 6 shows the car heightening operation (b mountain kingope).
FIG. 3 is an elevated plan view of a vibrator used as a finish applicator in a second position of the coating.

FIG. 7 is a cross-section of FIG. 6 taken along line 7--7. Figures 8-11a are ratchet and front elevation views of the end of the horn for various closed tip configurations used when single strands of yarn rather than multiple yarns are to be treated with liquid.

Figures 12, 13 and 14 are top and end elevation views of a horn for use in treating a single yarn line with two separate liquid streams.

The method chosen for purposes of illustration in FIG. 1 involves yarn 12 being spun as two separate lines from a spinneret 14, each line being connected to a first vibrating finish applicator, generally indicated at 18. advances through a passage at the tip of the yarn 16. The yarn then passes around a nine-groove roll 20 and its associated separator roll 22, and then passes through a combination drawing pin 24,
26 to a drawing roll 28 where it passes through a yarn guide 30 and a jet bulking device 34.
Proceed at a constant speed through Noan Pilgrimage 32. In the jet 34, the thread 12 is subjected to the general action of a thermal fluid (not shown) passing straight through the inlet 36. The hot fluid is lost with the yarn to a rotating drum 38 with a perforated surface where the yarn cools and the crimp is fixed. The thread passes from the drum in bulk form through a guide 39 and then through a pair of guides 17 and a second vibrator 18
A pair of driven take-up rolls pass through the ends of the four sides. This type of bulk yarn is disclosed in Breen and Lau, rMch, US Pat. No. 3,186,555. The yarn then passes through a stationary guide 42 and a traverse guide 44 to the rotating core to form a package 48 . Second
According to the figure, a gap pump 15 connected to a reservoir 13 supplies liquid finish to a shaker finish applicator 18 .

The Ga Pump delivers a precisely metered flow of liquid finishing agent.
Conduit 17 feeds an internal ball passageway 19 in horn 16 . The tip of the closed applicator where the yarn 12 meets the finish is located at the end of the horn of the ultrasonic vibrator, or forms part of a component of the horn. This structure is shown in more detail in Figures 3-5. Here, the horn 16 has a pair of passages 56,58. each of which has a continuous oblique then cylindrical shape 56a, 56b and 58a, respectively.
The lengths are indicated at 58b. Passage 19 connects to passage 56,58 through an orifice 60, with obliquely angled slots 62, 64 connected to passage 56, 58 to facilitate stringing up a continuous thread line into the passage.
It is attached in conjunction with 58. During operation, thread line 12
The liquid to be atomized and applied is accurately metered from a reservoir 16 to a passage 19 in the horn by means of a pump 15. The liquid passes through the orifice 60 in a thin film through the passageway 56,
58 on the inner surface. The thin liquid film is then smeared or atomized by the vibrations into the passages 56, 58 and propelled onto the thread moving through the passages. In addition, vibrations of the horn are transferred to the thread, reducing friction in the passage of the yarn at the tip of the horn and assisting in evenly spreading the finishing agent onto the filaments of the thread. The vibration of the tip of the horn atomizes the liquid and prevents the gas boundary layer from accompanying the moving thread fin, thereby injecting it into the atomized jar. This increases the receptivity of the thread to liquid and helps to distribute the liquid evenly to and around the individual filaments in the thread of the yarn). The ultrasonic vibrator is 10-100 KHZ, preferably 20-5 dish H
It may be piezoelectric or magnetoelectric with a frequency in the Z range.

FIG. 6 shows the vibrator 18' in the second position of the process.

This vibrator has a horn 16' with two side openings.
2-5 in that it has a closed tip including bottle-shaped passageways 56', 58' in communication with the liquid supply orifice 60' (FIG. 7). It is different from In addition, a shield 50, a concave hemisphere with a slot through which the thread passes, is located in front of the tip of the horn to collect excess liquid that could not be deposited on the yarn. Figures 8, 8a, 9, 9a and 11, 11a show the lateral and proximal end of the horn having side entrance passages for the yarn and various combinations of sloping, spherical and cylindrical long passages. It is a front view.

Although these horns are illustrated for use with a single thread, configurations with multiple threads passing through them are also possible. More particularly, Figures 8 and 8a show continuous beveled, cylindrical, beveled and reduced cylindrical shapes, 7a and 8a, respectively.
Conduits with long passages designated 7b, 7c and 7J (
groove) 7 is disclosed. Figures 10 and 10a are string-up stations leading to the passageway. Internal passageway (eMlosedpassage) 7 containing
′ is illustrated. This channel has the same structure as the conduit shown in FIGS. 8 and 8a, ie a continuous beveled, cylindrical, oblique and reduced cylindrical long channel. In Figures 9 and 9a the tip has a continuous mirror-beveled and cylindrical long passageway 5 and 5a, while in Figures 11 and 11a it has a continuous mirror-beveled, cylindrical, spherical conduit. and cylindrical long passage conduits, designated 3a, 3b, 3c and 3d, respectively. Although illustrated with respect to a single liquid stream per yarn line, two or more liquid streams per yarn line are also possible.

These are transported to the mixing castle just before the point of application by multiple passages within the vibrating horn 16 that keep the liquid streams separate until just before the orifice 60 enters the passages 56,58. Other structures for handling more than one metered stream per thread strength are shown in FIGS. 12, 13 and 14. In this case, separate liquids are supplied through passages 60a and 60b leading to the inner surface of the yarn slot 52 at the end of the horn. These passages may be angled relative to each other, as in FIG. 12, or parallel to each other, as in FIG. 14. A further feature of the applicator of Figures 12 and 14 is that the yarn east is spread out evenly as it traverses the inner surface of the tip, improving treatment of the individual filaments. EXAMPLE 1 Polyhexamethylene adipamide, having a relative viscosity of about 63, is applied to Isomoto's filament by using an apparatus similar to that shown in FIG. 1, except that the second vibrating applicator 18' is not used. The containing yarn was melt woven and processed.

The threaded filament passed through the tip of a vibrating finish applicator 18 operating at 20 KHZ and advanced to a feed roll rotating at a surface speed of 0 yd/min. The tip of this applicator had the shape shown in FIG. The yarn finish was weighed and fed to the applicator tip where it was atomized and injected into the yarn where it came into contact with the vibrating tip. The finish was a combination of oil-based; slippery composition and water. Lubricating composition 7.5, 15, 30
, 50 and 9% by weight were used.
This combination was found to have the following Brookfield viscosity: 7.5%, 3.5 centipoise; 10%
, 3.8 centipoise; 15%, 4.2 centipoise;
30%, 8.3 centipoise; 50%, 144.8 centipoise; and 90%, 1100-1200 centipoise. The weighing pump provides 0.25%, 0.5%, 0.75% and 1% for each combination based on the weight of the yarn.
．． The run applied a calculated amount of lubricating composition of 0.00%. In this way also calculate the amount of water applied to the fibers,
Shown in Table 1. The treated yarn was then drawn to 1350 denier by drawing rolls rotating at a surface speed of 21 yards per minute (1976 m/min) and then crimped;
Rolled up. If conditions permitted, each run was continued for two minutes and the package was removed; runs less than two minutes represent a failed run. Table 0 shows that the process can be run surprisingly smoothly even with 50% and 90% solutions that are too sticky for application by current conventional means. The yarn measurements obtained showed the effect of the applied water on the bulk, dyeability and quality of the yarn, thus demonstrating the great versatility and usefulness of the application of this new finish. is shown. Example 2 As described in '1' above, except that the tip has only one hole and the water and oil-based lubricating compositions are metered separately and the metered streams are combined just before entering the applicator. A 1300 denyl yarn was made in a similar manner.

In this case, the lubricating composition was metered in at 1.85 t/min and the water was metered in at 5.58 t/min. The process was running smoothly. When the lubricating oil composition was emulsified in water in a separate step for roll application, it exhibited poor emulsion stability and did not warm the roll well. Example 3 A 1300 denier yarn was produced in a manner similar to that described in {1}' above, except that a second vibrating applicator 18' operating at 5 plate HZ was used between the drum and advance roll.

Oil-based; a yarn finishing agent containing 15% of Sononame composition,
It was applied from a second vibrating applicator. The yarn finish was weighed at a rate to provide the yarn with 0.65% by weight of lubricating composition based on the weight of the yarn. The yarn leaving the drum was essentially dry so that the degree of wetness of the yarn after it passed through the applicator was a measure of the finish applied. The moisture measurements, which are conductivity measurements, showed a significant increase when the applicator was operated with vibration than when it was not vibrated. Table 1 Table U

[Brief explanation of the drawing]

Figure 1 is a system diagram in which this finish application machine is used at two locations in the yarn manufacturing process, and Figure 2 is an elevational view of the vibrator used as the finish application machine at the first location. 3 is an end view of the tip of the vibrator in the first position, FIG. 4 is a cross-section of FIG. 3 along line 4-4, and FIG. 5 is a top view of FIG. 6 is a side elevational view of a vibrator used as a finish applicator in the second position of the yarn bulking operation, and FIG.
Figures 8 to 11a are cross-sections of Figure 6 along line 7 and Figures 8 to 11a are illustrations of the end of the horn for various open □ tip shapes used when single strands of yarn rather than multiple yarns are to be treated with liquid. 12, 13 and 14 are side and front elevation views, and FIGS. 12, 13 and 14 are top views and end elevations of a horn for use in treating a single yarn line with two separate liquid streams; It is a diagram. 'G●'f'6-2 'Go'6, 3 'Go'6, 4 Dagoda 6, Evening'Go'G●6 'Go'6, 7 'Go'6, 8 'Go'6 .80 'Go'6・9 'Go'6・9Hi'Go'G●'4 f'6. ′〇′Go'6・^hihi'Go'6・''rGo'6・''Hi'Go'6・^2′Go'6・'3

Claims (1)

Claims: Supplying one or two liquids in a metered stream to the atomizing surface of a side-open passage or internal passage at the tip of an actuating horn of an ultrasonic vibrator; A method of applying a liquid to a thread line of yarn comprising: moving the liquid into a passageway in close proximity to a spray surface; and causing the liquid to atomize and advance onto the thread line by vibrating the surface. 2. Supplying a liquid as a continuous metered stream to the atomizing surface of an internal passageway at the tip of an actuating horn of an ultrasonic vibrator; spraying the liquid into the passageway by the vibrator; and advancing through the internal passageway in close proximity to the spray surface;
A method of applying a liquid according to claim 1 to a yarn line, comprising: 3. The method of claim 1, wherein the liquid is applied to the spray surface in separately metered streams. 4. The method of claim 1, wherein the liquid is applied to the spray surface in separately metered streams that merge just before reaching the spray surface. 5. The method of claim 1, wherein said liquid comprises separately metered streams of oil and water. 6. The method of claim 1, wherein said liquid comprises a different oil. 7. The method of claim 5, wherein the oil is insoluble in water. 8. The method of claim 5, wherein the oil is emulsifiable. 9. an actuating horn terminating in the atomizing surface and terminating in a passageway for a thread of yarn for supplying liquid to the atomizing surface through a lumen in the actuating horn that is continuous with the atomizing surface; a source of the liquid; 1. An ultrasonic vibrator for atomizing liquids comprising metered supply means for liquids, characterized in that the atomizing surface is part of the internal surface of a long passageway that is open at each end. 10. The vibrator of claim 9, wherein the passageway comprises an inclined, cylindrical elongated passageway, and the lumen opens into the inclined elongated passageway. 11. The vibrator of claim 14, wherein the liquid is supplied to the spray surface through two tube holes. 12. The vibrator of claim 9 including a string-up slot enclosing the elongated passageway and communicating with the elongated passageway for introducing continuous elongated yarn into the passageway.