CS197427B1 - Method of and apparatus for dyeing continuously advancing strands - Google Patents

Abstract

1522321 Dyeing filaments WISSENSCHAFTLICH - TECHNISCHES ZENTRUM TRIKOTAGEN UND STRUMPFE VEB 23 Oct 1975 [19 Nov 1974] 43577/75 Addition to 1486935 Heading D1L Dyeing of filaments according to Parent Specification is modified in that the filament is completely dried prior to fixing by passage through heated tube 6 to improve the running properties thereof. Spray-free dye application is also ensured by doctoring at 13 the filaments emerging from the dye bath 4 and then passing the filaments around concave roller 12. Further liquor removal may be carried out by filament looping at 14.

Description

This invention ^relates to ^{novel p} h ^o of Úsobí ^s koróinu & stained them with a ^Hyb uj ^{p I} C ^¹H by VJ and ékna ^F DRIVING furnished for performing the method ·

Has been proposed a method and apparatus 1c dyeing continuously moving fibers, in particular artificial ^about hed ^attracts zobjemnovaněho torsion, ^straight ICEM ^{Ž t} o ^t o m ^ELE HE ^d lures for ^D torsion conducted with a dye solution and a predetermined constant delay or predetermined constant stretching, · DOS dye solution or also special chemicals ^and the ^p Ede refixaěn ^s zone and finally preferably ^p rov ^Adi ppe ^{d c t} e fixa exact dye fixation twisted fibers.

This solution was created by a procedure according to which it is possible staining of a continuously moving strand with the shortest residence time, and it is feasible combination dyeing process e ^pro cedures ^zobjemn network ^ ^{i P} Rinci ^p at not ^p rav ^é it twists and the even conditionally ^to use ^living high-turn machines for false twisting.

Devices developed ^e k ^p rovád ^of n ⁱ of ^p osta ^p u s ^ ADA z barvtafro device umetaného between the inlet feeding device and the puller, such as napouště ^c s ^van y _t ^and z ^p refi ^x ačního device on ^{CMD and} d kl in the form ^of a ^p not ^{with the} oh. Among dyeing equ ^{nus maps} refixačnírn establishment is St ^I raoí under ^RI lation. ^Z and ^T from ahovacírn under ^RI lation. néisletaje under ^{RI DRIVING} d ^{for the n} ° DATEC ^u fi ^x AOI in the form ^of a second ^e n ^{e p} TACHTECH then is situated výstaprá ^ taojí.

At. b^arvení k^heti^nuální s^E of flexible fibers^po & e^toho^to z^psobu docbiá^ofpH de !. š^{ch do}bách^prat^Chim^du toⁿE^Byethicker wiping of dye on o^dtahovac: ím^atwith^tswarms, you can^Těném limits.

197 427

197 427 prefixing and post-fixation devices · In the case of a combination of a dyeing process and a false twist procedure, the properties of the filament ▼ may be adversely affected by the downfeeder. · Other complications arise »especially at very high fiber speeds · Spraying in the section of the dyeing device · Also water vapor »that emerges from the heating shaft of the wiper tube and condenses there» may cause slight discoloration of discoloration, depending on circumstances ·

SUMMARY OF THE INVENTION It is an object of the present invention to improve this process so that the continuous properties of the fiber remain stable during the individual process steps

A further object of the invention is to provide a device for carrying out this process by such means as to guarantee the application of the dye in such a way as to avoid splashing and to ensure uniform coloration.

According to the invention, this object has been achieved by drying the applied dye almost completely in the prefixing zone.

According to a further feature of the invention, a fiber guiding device is provided in the area of the dyeing device which comprises a lower guide roller »housed inside the dyeing bath» and an upper guide roller »positioned above it perpendicularly above the bath surface.

The lower guide pulley is provided with a guide groove and the upper guide pulley is strongly concave curved · A solid spatula is placed between the two guide pulleys immediately above the bath surface ·

A further feature of the invention is that the wiper tube is located separately from the prefixing device and is preferably heated by a heating coil or similar heating device.

With the solution according to the invention, the above-mentioned disadvantages are completely eliminated.

The invention will be explained in more detail below with reference to an exemplary embodiment.

The dyeing and dyeing fiber is withdrawn in a known manner by the feed device 2 from the coil winding 2, is guided through the impregnation tub 6 through a wiper tube-shaped wiper 1 and a first heating shaft 6, while keeping the draw-through device X in or out The filament X is further passed through the second heating shaft 8 and is drawn off by an output withdrawal device 10 and fed to a suitable winch 10. In the exemplary embodiment, the second heating shaft 8 and the output withdrawal device 2 is a device corresponding to the machine for milling twisting. In the area of dye deposition in the bath, the fiber guide device is comprised essentially of a lower guide roller 11 and an upper guide roller 12, while the lower guide roller XX is housed in the dye bath at the bottom of the impregnation tank. perpendicular above it outside the dye bath · The lower guide pulley 11 is provided with a guide groove.

Due to the high velocity of the fiber 1 emerging from the dye bath, a bath cone is formed around the fiber X at the exit point. In order to wipe off this bath cone and prevent draining of the dyeing bath. squeegee 13 ·

The upper guide pulley is strongly concave »thus allowing the fiber X to be» drawn through the dyeing bath »without splashing · In the case of» another scraping3

197 427 according to the known principle of formation. of the fiber loop, the upper guide pulley 12 also serves to stabilize the formed fiber loop 14 at an imaginary throw immediately above the guide pulley

12.

Due to the high draw-off speed of the fiber and the associated high rotational speed of the lower guide roller v located in the dye bath, sufficient turbulence of the dye bath is achieved, so that no separate circulation device is required.

The wiper tube 6 is separated from the first heating shaft 6 and ends in front of it at a slight distance.

It is advantageous if the wiper tube 15 is indirectly heated, for example by a heating coil 15 or similar heating device, so that the fiber 1 connected by the dye bath can be fed into the prefixing path already at a higher outlet temperature.

The following examples are intended to illustrate the invention in more detail.

Example 1 and d1

The long ^{é Ž} en polyamide HE ^{ABI 10 d} tex ^{(2 to 4) b} and ^d ARV zobjemnuje ^Pr I 'dragging speed ^65, 0 m ^/ min ⁰ 0 32 r / min.

The rotational speed of gear odtahovaoího £ podávaoího the rotation speed device 2 is then determined ^from the e l ^s extends kno £ .a prefixačním staining device and, with ^{<tíraoí-pipe NO} £ ma with delays 7%.

^C prefix the device ^and it is formed RVN ^{p s t} o ^p Nou -šachtou 6. ^which 'the temperature is ¹ 55 ° C. La n ^{d s initial} fixation with ^p rov & ^{I t} o ^p n ^s door ^E £ ^ staoje for zobjemiaová No ^P r ^and replacing 'twist te ^p s ^p lot ^{of 110} ° C.

^P ou l ^STE Affairs ^and that the ^N of ^b sahujet g / 1 g / 1 g / 1 g / 1 g / 1

1.5 g / l

Nylosanblau N-GL, conoentrate V 50, oic acid 98 propionamide, benzyl alcohol, urea.

A slightly ductile, blue-colored polyamide silk is obtained which exhibits the following stability values without additional washing:

st & obarevnost in wounds ^{p I at} 4 ° C 4. ⁰ perspiration fastness 4 color fastness rubbing fifth

Example 2

Stretched ^p ol ^y Amides ^{E 1} 5 collared tex ^{(4 8)} and color zobjeirnuje suits. pulling speeds of 60.0 m / min and 2140 rpm.

^p r between ^p and h ^UT odávacím ú.staojírn and odtahovacírn £ ^ú £ rojůz ^t with a predetermined value ♦ ^{P 1.1} Te lota taps in the first ^{and s} is ¹ shaft 9 £ ^{0 's} temperature ^Square rao trubi ^CKY £ ¹¹⁰ ° C

187 427 • heating temperature Baohty £ false twist machine 220 ° C «

The water-bath contains ·

12 g / l Porangelb 3E-20L 3 g / l conoentrate V 50, 2 g / l oic acid 98% 7 g / l proplonamide, 7 g / l benzyl alcohol, 1.5 g / l urea.

This dyed and softened polyester silk is highly ductile and has an intense yellow color. · Color fastness to washing at 40 0, color fastness to sweat and abrasion without additional washing is up to 3-4 ·

Example 3 The elongated polyamide silk 10 tax (24) is stretched, dyed and softened at a draw speed of 65 m / min and 3200 rpm.

The silk is drawn at a ratio of 1 t 2,9 between the feed device 6 and the draw-off device X in the dyeing and prefixing section. The temperature of the wiper tube 1 and the first heating shaft 6 is 110, pepper. When passing through the false twist machine, the rotational speed of the draw-off device X and the exit draw-off device D is determined so that the filament passes through this path at a flow rate of 3.8%.

The beverage sealing bath does not contain hydrotropic chemicals. Its composition is followed by about 1 g / l Hylosanblau K-GL, g / l concentrate T-50, g / l acetic acid 98%.

The result is a low-ductile, blue-colored polyamide silk, which has values of color fastness to washing, color fastness! in sweat and abrasion about 4.

Claims (2)

Wake the hatch 1, A method for dyeing a continuously moving fiber, in particular of rayon filament summed by twisting, wherein the artificial filament is guided prior to twisting by a dye solution and, at a predetermined delay or constant drawing, dispensing the dye solution or speoial chemical, and preflxion zone and finally an additional flxaoe of the dye with the fixation of the 197 427, characterized in that the fiber and the applied dye in the prefixing zone are dried to a residual moisture content of less than 1.5%. Device for dyeing a continuously moving fiber according to the method of item 1, wherein a dyeing device, for example in the form of a soaking tub with a lower water pulley mounted inside the dyeing bath and an upper guide pulley placed above it, the lower guide pulley is provided with a guide groove and the upper guide pulley is concave curved, between the two pulleys a rigid spatula and a prefixing device are fixed directly above the bath surface, for example in the form of a heating shaft with a wiper device in the form of a scraper tube, the withdrawal device being followed by an additional fixation device in the form of a second heating shoe and then an output device is provided, characterized in that the scraper tube (5) is arranged separately from the prefixing device (6) and spiral or similar heating device.