CS221660B1 - Method of dying the textiles from the mixture of polyester and cellulose fibres on the stabil shades - Google Patents

Description

221660

BACKGROUND OF THE INVENTION The present invention relates to a method for dyeing textiles of a polyester / cellulose fiber blend on a still odithium. In these sera, the staining is achieved by using disperse and re-activating dyes until now unused.

Permanent shades of the invention are obtained by impregnation at a fularde in a dispersion dye-bath, reactive dyes, buffers, a carrier, to prevent dye reductions, a solubility agent for the reactive dyes, and any other components such as agents for treating veins and free-binding agents, wetting agents and migration inhibitors. After collapsing, the goods are preheated and the pre-ovens in the wet state are allowed to settle, beads and then thermofix. In the textile practice, mixed textiles PES / cellulose are known for almost 25 years. They have advantageous physico-mechanical and utility properties. For dyeing, the following require text-to-use technology. The most common current methods of producing permanent textile fabrics of PES / cellulosic blend are: - atmospheric boiling dyeing by pulling the single-stage double-dispersion dispersing and reactive paints with vat dyes. The disadvantage of sposiob is the possibility of dyeing only by limited color shades and long technological times. - Dyeing with disperse and vat dyes in a two-stage high-temperature pull-out method. Advantage of the required solution of color fastness. The disadvantage is the low continuity of work, long technological times and high energy costs. In addition, cypa dyes have egali-ability. - Dyeing with disperse and reactive dyes in a single-stage, two-stage, high-temperature process. The disadvantage of this process is the long process times and the low yield of reactive dyes at the dyeing yield due to their low degree of color. - Dual-bath coloring. The disadvantage of all two bathing methods is the necessity of working on two-machine equipment in succession, demanding technological times, while ensuring the color-fastness. They are based on the use of disperse and vat dyes by the Ter-mosl-Pad siteam method of two-stage and disperse and reactive dyes by the Ter-moslol-Pad-Jig, Termosiol-Pad-Bait, and Ter-moslol-Pad-Steam methods.

The dyeing according to the invention, which is characterized in that the dyeing takes place in a single-stage, monobasic dispersive and reactive dyes, results in the same color-fastness values in any commonly used dyeing method with dispersive dyes at lower energy dyes. The dyeing is that the pretreated fabric is treated semi-semi-continuously by impregnating the dyeing dye with a dyeing bath, desiccated with 30 to 50% moisture, preheated and wetted.

In the bulk dispenser, the full process of staining the cellulosic portion with the reactive dye and its attached fiber takes place, as well as the transfer point of the dyeing of the PES portion. After the following washing and thermofixation is complete. The advantage of the coloring of the fabric of the invention is the simplification of the process, i.e. the reduction of the number of necessary technological operations in the semi-continuous dyeing process, thereby reducing the energy intensity, while ensuring comparable color fastness results in the presently used methods.

In order to determine a suitable method of using the technology of the invention, it has been necessary to find a suitable coloring composition, to determine the coloring process for both components and to determine the technolo- gy of finishing operations to ensure color fastness. 1. Pretreatment of the material May be transferred to any type of equipment to prevent material, wash off and softeners. 2. Drying or Prefixing.

Drying is carried out on tensioning or drying frames. If the material permits pre-fixation, it is not advisable to do so, the yield is reduced. dispersing dyes. The conditions of pre-fixation of the goods depend on the material used. 3. Coloring.

Composition of dyeing basket:. 0.1 - 200 g / 1 dispersion dye 0.1 - 200 g / l reactive dye 5 - 20 g / l buffer 1 - 30 g / 1 transporter 1 - 5 g / 1 injection molding

Dyeing-bath temperature 20 to 30 ° C / 30 to 50%

Pre-play in infrazone

Dwell time in the fixation chamber 4 to 12 hours at temperatures

- wet 100 ° C

- dry 103 ° C 4. Alkaline washing.

Regardless of the machinery used, washing is carried out under the following conditions: (a) cold wash (221660); (b) hot washing (min. 50 ° C); (c) bath soaking with 1 to 10 g / l of alkali hydroxide; 10 g / working load (min. 50 ° C (d) final warm and cold wash 5. Drying and thermofixing.

Thermofixation improves the stability of the PES fraction and the color of the dye shadow. Drying and termiofixation can be carried out on the needle type of stretched afixation frame at temperatures of 180 to 210 ° C for 20 to 40 seconds. For thermofixation, the condensation at 150 ° C can be used for 15 to 30 minutes after drying the goods.

The dosage indicated is to be construed to be consistent with the conditions and the particular case as indicated in the examples. Example 1:

Washed and dried PES / BA 80 // 20 in 8000 m length was dyed reddish-brown in PAD-Rolle in a bath temperature of 20 ° C 25 g / l dispersion dye (S-L2G) 25 g / l reactive dye (Ostazinium latex orange H-2R) 15 g / l carrier (naphthalene biphenyl - Spola-pren X) 5 g / l anti-reductive agent (sodium salt of nitrobenzenesulfonic acid - Tiskin) 15 g / l buffer (sodium hydrophosphate) 50 g / l urea

The fabric was pre-heated to 95 ° C with infrazone and pivoted into the chamber under 100 ° C wet temperature and 103 ° C dry temperature.

After fixation for 8 hours in a pad-Riollu chamber, the liquid was washed on an 8-compartment shin-machine. Section 1 20 ° C Clean Water Flow 2nd Section 60 ° C Clean Water Flow Rate 3rd Section 80 ° C Clean Water Flow Rate 4th Section 80 ° C 1g / l NaOH and 5g / L Washing for increment ( Slovapon N - alkylpolyglyctol ether j 5. compartment 80 ° C 1 g / l NaOH and 5 g / l wash foam (Slovapon N - alkylpolyglycol éte-r j section 6 ° 60 ° C pure water 7. compartment 50 ° C clear water flow rate 8th section 40 ° C clear Water flow rate Fixation on fixation frame at 205 ° C 30 seconds / Vs 45/55% warp 100% PESh 100% VSh 3500m stained on Pad-Rolle v 30 g / l dispersive dye (Ostacet orange SE-2G) 30 g / l reactive dye (Ostazin gold-bred HR) 10 g / l reactive dye (Ositazin bri lant orange H-2R j 20 g / l buffer (sodium bicarbonate) 15 g / l carrier (Spolapren X - naphthalene biphenyl) 5 g / l anti-reductive agent (Tiskin — sodium salt of nitrobenzenesulfonic acid) 50 g / l salamanders

Bath temperature 25 ° C. Fixation in conditions: temperature - dry 103 ° C - temperature 100 ° C

After fixation in a clot for 6 hours, it was wiped on an 8-compartment washing machine as in Example 1 and dried on the frame followed by condensation at 150 ° C for 30 minutes. Example 3

Pre-treated and dried PES fabric // Vs 80/20% 1000 m was bathed in Pad-Rolle bath: 30 g / l dispersion dye (Eacetyl blue E-LG) 20 g / l reactive dye (Ostazin Brilliant blue H-BRj 20 g / l buffer (sodium bicarbonate) 20 g / l carrier (Spolapren X - naphthalene biphenyl) 5 g / l anti-reducing agent (Tiska-sodium salt of nitrobenzenesulfonic acid)

Bath temperature 30 ° C. Fixation Conditions 103 ° C - Dry Temperature 100 ° C - Wet Temperature

After fixation in the Pad-Rollu for 6 hours, the fabric was washed on a sash:

5 min. 20 ° C, clear water 2 X

5 min. 50 ° C clear water 2 X 10 min. at 80 ° C in a bath of 1 g / l NaOH and 1 g / l of detergent (Laurylan N 20 - alkyl polyglycol ether sulfate)

5 min. 70 ° C Clear Wool 2X 5 min. 20 ° C pure water Condensation at 150 ° C for 25 min. after drying on sushiacomram. Example 2

Washed and dried PES fabric /

Claims (1)

OBJECTS OF THE INVENTION The fabric was dyed with a polyester-cellulosic fiber blend on a shade, characterized in that the fabric was impregnated with a color bath containing 0.1 to 200 g / l of disperse dye at 20 to 30 ° C. 0.1 to 200 g / l of reactive dye, 5 to 20 g / l of buffer, 1 to 30 g / l of carrier and 1 to 5 g / l of anti-reduction agent, after soaking the fabric is preheated to a temperature of 95 to 100 ° C, rotates 1000 to 8000 meters in length over the package and leaves a flat. for 4 to 12 hours at 95 to 100% relative humidity and 100 ° C and then washing and thermofixing. Severografia, n. P “závod 7, Most Price 2,40 Kcs