DE2537445A1 - Dyeing crimped polyamide yarn packages - carried out at low temp. to avoid setting with affinity dye - Google Patents

Abstract

Dyeing process for polyamide 6 and 6, 6 yarn with a crimp of is not 70% (HE) in sleeve or coil packages is carried out, without losing the crimp, with an affinity dye at temps. below 70 degrees C pref. below 65 degrees C, followed by rinsing, activation and rinsing. A mixt. of acid and dispersion dyes is pref. used. If a sleeve is used, it is placed on a moulding which excludes the formation of channels before dyeing. Loss of crimp and setting are avoided and level dyeing results. In an example, dyeing is carried out at a goods to liquor ratio of 1:3-50. The yarn is treated 10 mins. at 30-40 degrees C with a liquor contg. 4-0.5% levelling agent or dispersant, then the dye is added in 5 mins. and treatment is continued for 10-60 mins. at 60-65 degrees C. It is then rinsed and subjected to after-treatment is required.

Description

"Dyeing process".

1. Introduction a) Current state of the art in equipment for Manufacture of Helanca: texturing on the false twisting machine, re-turning of the textured thread with approx. 80 - 120 turns. Production of a strand or one Rocket muffs on appropriate machines.

D. inoculation of the package and thus entry as HE.

Dyeing in packs and bags.

Expand the dyed yarn package and apply it to drain body.

Winding this package (reel strand at low speeds).

If the processes of re-turning, lfeifer, Uampfen, expanding cease to exist and dyeing at the same time at 98 ° C to 105 ° C (previously the usual method) is a Received unwanted set yarn.

b) Identification of procedure b / i A considerable part of the under Section 1) described discontinuous operations with high cost may cease to exist if the manner of staining prevents one significant loss of curl values (E) occurs.

b / 2 To ensure the greatest possible preservation of the E, this is Starting material (HE yarn with a starting E of approx. 70) the lowest possible thermal Exposure to stresses, so not - as with the conventional dyeing method - the HE yarn becomes a set yarn.

b / 3 The following measures made it possible to save the mentioned Process steps to produce a desired, surface-dyed HE yarn To dye at temperatures where no technological change beyond the previously known level addition (see conventional procedure) takes place.

2. Description of the process 2/1 Subject of the patent grant is intended to be the dyeing of the false-twist texturing machine or similar machines manufactured packages regardless of the presentation, i.e. as a finished package or in spool form be at low temperatures.

Example.

a) Pressing the muffs (if present) to a minimum Measure, however, to the extent that there is a uniform packing density and flow achieved.

b) Dyeing process: liquor ratio 1: 3-1: 50.

Submission of leveling agents respectively. Dispersants in quantity from 4 - 0.5% depending on the depth of the color and an acid donor.

Preroll with these aids 10 minutes at 30 - 400 c. Encore of the finely dissolved resp. distributed dye and further forerun for 5 minutes.

Heat for 10 - 60 minutes to 60 - 650 C. Depending on the dye class Acid addition after 15 minutes at 60-650c for better bath exhaustion.

Running time at 60 - 6500 approx. 60 minutes. Rinse if necessary

Post-treatment to improve wet fastness, e.g. with Cibatex PA, rinse, finish, drain.

Winding the package overhead on suitable winding machines, rolling vertically, rolling horizontally.

At a temperature of 60 - 650C, taking into account normal dyeing times with sufficient dye yield a perfect dyeing be achieved. The E are around 50 - 52%, the crimp resistance values at 81 - 86% and are evenly distributed over the entire bobbin.

c) Dye classes The following classes of dyes can be used according to the invention metal-containing and metal-free acid dyes, substantive dyes, Reactive dyes, disperse dyes, vat dyes and their mixtures, such as metal complex and disperse dyes.

d) results? This gives a yarn with the following properties E-values: approx. 50 - 52% KB values: approx. 81 - 86% Authenticity standard: As according to conventional Procedure achievable.

2/2 Several examples from different dye classes detailed described a) Elanyl dyes Material: PA 6.6 HE, apparatus: Obermaier Turbostat 2000 1 lot size s 150 kg color brown 750 g leveling agent A 2000 g (NH4) 2S04 750 g leveling agent B 4500 g Elanyl Brown R pre-run without dye 10 minutes at 4000, after adding the dissolved or. dispersed dye further forerun 5 min. At 400C.

Circulation: alternating Y - A A - J.

Heat to 600C for 20 minutes.

After 15 minutes, addition of 4000 ml CH3 COOH 60%.

Dyeing for 60 minutes at 600C.

Rinse, treat at So0 0 with 4500 ml Cibatex PA and 1000 ml CH3 CM ROH 60%.

Rinse for 20 minutes.

Softening at 400C for 10 minutes with 2000 g Avivan SFC.

Finish, drain, rinse.

b) indanthrene dyes.

Material PA 6 HE apparatus: Thies Duomat 1300 1 lot size: 115 kg Color: red Dekol N: 13000 g Setamol WS: 6500 g NaoH 38 Bè 20 800 ml Na2 S2 O4 6500 g indanthrene red FBB 3300 g forerun without dye 10 minutes at 25 C, addition of the dye dissolved in the main vat and further forerun for 15 minutes.

Circulation: alternating Y - A A - J.

Heat up to 50 ° C for 25 minutes.

Dye for 90 minutes at 500 C.

Rinse in the overflow until alkali-free, rinse 1 x cold.

Oxidize with an oxidizing agent, e.g. hydrogen peroxide 600 C 30 minutes.

Rinse 1 x cold.

Avivating at 400 C for 10 minutes with 1300 g Avivan SFC.

Finish, drain, rinse.

c) dispersion dyes.

Material: PA 6.6 HE Apparatus: Obermaier Turbostat 650 1 lot size : 31 kg Color: gray 650 g Leveling agent A 650 g Setamol WS 325 ml CH3 COOH 60 % 92 g Cibacet gray NH md Gran.

15 g cibaceto orange 2 rows md gran.

Pre-run without dye 10 minutes at 400 C.

After the dispersed dyes have been added, a further forerun 5 minutes at 400 C.

Circulation: alternating J - A A - heating for 20 minutes to 600 C, dyeing for 60 minutes at 60 ° C, rinsing, finishing at 40 ° C, 10 minutes with 650 g Avivan SFC.

Finish, drain, rinse.

d) acid dyes.

Material: PA 6 uE, apparatus: Obermaier Turbostat 4500 1 lot size : 380 kg Color: beige 4500 g leveling agent A 4500 g CH3 COO NH4 Tectilon orange 3 parts by weight / 1900 g Tectilon red 3 B 190 g Tectilon blue R 230 g forerun without dye 10 minutes at 40 ° 0. After addition of the dissolved dye, a further forerun for 5 minutes at 40 ° 0.

Circulation: alternating J - A A - heating for 30 minutes to 600 C After 15 minutes of addition of 9000 ml of CH3 COOH 60 46 3 After a further 10 minutes of addition from 4500 ml CH? COOH 60% dyeing for 40 minutes at 600 C.

Wash.

Treat at 500 C with 11400 ml Cibatex PA and 2300 ml CH3 COOH 60 <for 20 minutes, rinse, finish at 40 ° C, 10 minutes with 4500 g of avivan SFC.

Finish, drain, rinse.

Claims (1)

3.) Claims # / 1 A method for dyeing textured Polyamide 6 and 6.6 yarn with a curl value of at least 70% (HE) in Muff or bobbin packaging, characterized in that while maintaining the iinkräuselungswert said yarn at temperatures below 700 C with affine Dyes dyes, then rinses and rinses. 2) Method according to claim # / 1, characterized draws that one dyes below 65 ° C. # / 3) Method according to claims ##, 2 characterized in that that one takes a mixture of acidic and disperse dyes. 3/4) Method according to claim ## 1-3, characterized in that one when using muffs, the material brings the material to a compression size before dyeing, which excludes the formation of channels. 5) The colored textured obtained according to claims ## 1-4 Polyamide 6 and 6,6. 4. Other base materials The above-requested granting of a process patent for the dyeing of Helanca applies accordingly to base materials other than polyamide, insofar as the new process is applicable to them. tetEabo + en Ll - «- £ ll t The granting of licenses for v to be granted A drive registered for a patent is carried out r Mr. g-Peter Weller.