JPS6151073B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention describes the use of disperse dyes to dye leveling agents and synthetic fiber materials, such as fibers made of cellulose triacetate, polyurethane or polyamide, in particular fibers made of linear polyester or mixtures thereof with natural fibers. This paper relates to a method for uniformly dyeing.

A method is known for uniformly dyeing textile materials consisting of linear polyester or mixtures thereof with natural fibers using water-insoluble disperse dyes according to the exhaustion method (German Patent Application No. 25 08 472). . In that process, in addition to the above-mentioned dyes and PH-adjusting substances, the aqueous dyebath contains, as a leveling agent, (a) one or more saturated or unsaturated aliphatic, cycloaliphatic or aromatic dicarbons; obtained by polycondensation of an acid and (b) one or more saturated or unsaturated aliphatic, cycloaliphatic or aromatic diols, provided that all dicarboxylic acid- or diol-chain portions of 30 mol% has sulfo group or its salt, average molecular weight 800~
5,000 water-soluble or dispersible cotton-like polyester is added in an amount of 0.1 to 5 g/g.

In addition, branched, sulfonate group-containing polyesters (molecular weight 600 to 5000) which are soluble or dispersible in water can be used instead of linear polyesters which are soluble or dispersible in water as dispersants in such methods.
It is proposed to use . During this production, branched components such as tricarboxylic acids, tetracarboxylic acids, trial alcohols or tetraalcohols are added at 1% by mole per 100 mol% of the polycarboxylic acid components.
~40 mol% is used.

When using the method described above, removal of the dye or uneven dyeing of the dyed product can be avoided. It has now surprisingly been found that the effectiveness of the process can be further improved by additionally using an ethoxylated base of castor oil in the process. The invention therefore relates to a leveling agent and a method for uniformly dyeing materials consisting of synthetic fibers or mixtures thereof with natural fibers using disperse dyes. In this case, the process according to the invention comprises adding to the aqueous dyebath, in addition to the above-mentioned dyes and PH-adjusting substances, (A) (a) one or more saturated or unsaturated aliphatic, cycloaliphatic or 100 mol % of aromatic di- and optionally poly-carboxylic acids; (b) one or more saturated or unsaturated aliphatics;
Obtained by polycondensation with 90 to 120 mol% of cycloaliphatic or araliphatic di- and optionally poly-ol and/or ether group-containing saturated aliphatic, cycloaliphatic or araliphatic diol, provided that , 5-40 mol % of all di- and poly-carboxylic acid- or di- or polyol-chains, preferably 5-30
water-soluble or dispersible linear or branched polyester (average molecular weight 600-5000) containing mol % of sulfo groups in the form of salts and (B) oxyethyl by 5-50 mol of ethylene oxide. 0.2 to 5 g/preferably of a mixture consisting of castor oil [weight mixture A: B = 1: (0.1 to 5) preferably 1: (0.5 to 2)]
It is characterized in that it is added in an amount of 0.05 to 2 g/.

Water-soluble or water-dispersible linear polyesters can be produced in a manner known per se by polycondensation of 100 mol % dicarboxylic acid and 90 to 120 mol % diol. In this case, a total of 5 to 40 mol %, preferably 5 to 30 mol %, of the dicarboxylic acids and/or dihydroxy compounds must contain sulfo groups in the form of salts.

Saturated and unsaturated aliphatic, cycloaliphatic, araliphatic or aromatic dicarboxylic acids can be used as dicarboxylic acids. C ₄ - C ₁₀ dicarboxylic acid,
Benzodicarboxylic acid is particularly preferred. For example, suitable dicarboxylic acids include succinic acid, glutaric acid, adipic acid, corkic acid, maleic acid, fumaric acid, itaconic acid, cyclohexanedicarboxylic acid-1,4, cyclohexanedicarboxylic acid-
1,3, phthalic acid, isophthalic acid, terephthalic acid, naphthalene dicarboxylic acid, such as 1,
4-naphthalene dicarboxylic acid, 1,5-naphthalene dicarboxylic acid; furthermore, diphenic acid, norbornane dicarboxylic acid, and the like. Instead of the dicarboxylic acids mentioned above, their derivatives can also be used. Examples are anhydrides, acid halides, especially acid chlorides, esters, especially esters with easily distillable C ₁ -C ₄ alcohols. Preference is given to using mixtures containing dicarboxylic acids and/or dicarboxylic acid derivatives. Preferred esters, anhydrides and acid chlorides include, for example, the following compounds.

Terephthalic acid dimethyl ester, terephthalic acid diethyl ester, terephthalic acid dipropyl ester, terephthalic acid diisopropyl ester, terephthalic acid dibutyl ester, isophthalic acid dimethyl ester, isophthalic acid diethyl ester, isophthalic acid dipropyl ester Esters, isophthalic acid dibutyl ester, phthalic acid dimethyl ester, phthalic acid diethyl ester, phthalic acid di-propyl ester, phthalic acid di-isopropyl ester, phthalic acid dibutyl ester, malonic acid dimethyl-, -diethyl- , -dipropyl- or -dibutyl-ester, -dimethyl- or -dibutyl-succinic acid ester, -diethyl- or -diisobutyl-glutaric acid ester, -diethyl-adipate- or -di-isobutyl ester,
Pimelic acid dimethyl diisopropyl or dibutyl ester, dimethyl corkate,
-diethyl-, dipropyl- or -dibutyl-ester, 1,4-cyclohexane-dicarboxylic acid-dimethyl-, -diethyl-, -dipropyl-, -diptyl-ester, 1,2-cyclohexane-dicarboxylic acid-dimethyl- ,-diethyl,
-dipropyl-, -dibutyl-ester, 1,3
-Cyclohexane-dicarboxylic acid-dimethyl-,
-diethyl-, -dipropyl-, -dibutyl ester, phthalic anhydride, maleic anhydride,
Succinic anhydride, phthalyl chloride.

Suitable esters may be esters with diols in which the alcohol component is:

Diols for the linear polycondensates which can be used according to the invention are saturated, unsaturated aliphatic, cycloaliphatic and araliphatic compounds, preferably compounds having 2 to 10 C atoms, especially those having ether bridges. Saturated aliphatic, cycloaliphatic or aromatic compounds are suitable. However, in the case of compounds containing ether groups, a preferred range of 2 to 10 carbon atoms refers to the respective aliphatic moiety between two ether bridges or oxygen atoms.

Suitable diols include, for example, ethylene glycol, propanediol 1,2, propanediol 1,3, ethylene glycol-mono-(3-
hydroxy-propyl) ether, ethylene glycol mono-(3-hydroxy-propyl)
2) Ether, ethylene glycol mono-(2
-hydroxy-propyl) ether, butanediol, especially butanediol-1,4, pentanediol, such as pentanediol-1,5, hexanediol, especially hexanediol-1,
6, Decanediol-1,10, diethylene glycol, dipropylene glycol, bis(3-hydroxypropyl)-ether, triethylene glycol, tetraethylene glycol, tripropylene glycol, 4,8-dioxadecane-1,10
- Diol, polyethylene glycol (molecular weight
300-2000), polypropylene glycol (molecular weight
300-2000), polyethers of propanediol-1,3 and mixed polyethers of ethylene glycol and propylene glycol and/or optionally propanediol-1,3 (provided that the polyethers have a molecular weight of 300-2000). ),Screw-
(4-Hydroxybutyl)-ether, 2-methylenepropanediol-1,3,2,4-dimethyl-2-ethylhexanediol-1,3,2-
Ethyl-2-butyl-propanediol-1,
3,2,2-dimethyl-propanediol-1,
3,2-ethyl-2-isobutyl-propanediol-1,3,2,2,4-trimethyl-hexanediol-1,6,1,3-dihydroxy-cyclohexane, 1,4-dihydroxy-cyclohexane (quinit) , 1,4-bis-(hydroxymethyl)cyclohexane, 1,3-bis(hydroxymethyl)cyclohexane, 1,2-bis(hydroxymethyl)cyclohexane, 1,4-
Bis(hydroxymethyl)benzole, 1,3-
Bis(hydroxymethyl)benzole, 2,6-
Bis(hydroxymethyl)naphthalene is mentioned.

The following diphenols are also suitable. That is, it reacts with ethylene oxide on both sides to form an aromatic aliphatic bishydroxy compound, which has the general formula (where r=0 or 1 S=1, 2, 3 or 4). Representative examples of such products include: and also other products which are oxyethylated several times on both sides.

A preferred diol component is diethylene glycol, but also triethylene glycol. The diol is also preferably used as a mixture,
For example, a mixture of diethylene and triethylene glycol can be used. Other preferred mixtures are diethylene and/or triethylene glycol 40-95 mol%
and other diols, especially those with more than two ether bridges, especially preferred polyethylene glycols with an average molecular weight of 300 to 1000.
Contains 5 to 60 mol%.

A fraction of the dicarboxylic acids and diols can be replaced by hydrocarboxylic acids (preferably having 2 to 10 carbon atoms). Preferred hydroxycarboxylic acids include glycolic acid, lactic acid,
3-hydroxypropionic acid, 4-hydroxybutyric acid, 5-hydroxypentene-3-acid, mandelic acid, 3-hydroxy-methyl-cyclohexane-
Carboxylic acid, 4-hydroxymethyl-cyclohexanecarboxylic acid, 6-hydroxymethyl-decalin-carboxylic acid (-2), 3-hydroxyethyl-benzoic acid, can be mentioned. Also suitable are derivatives of hydroxycarboxylic acids, such as esters.

Suitable esters of hydroxycarboxylic acids include: lactic acid-methyl ester,
Lactic acid ethyl ester, 4-hydroxybutyric acid methyl ester, mandelic acid ethyl ester, If hydroxycarboxylic acids or derivatives thereof are used, up to 40 mol % of the dicarboxylic acid and diol content can be replaced by hydroxycarboxylic acids or derivatives thereof.

Substrates containing sulfo groups in the form of salts, especially alkali, ammonium, substituted ammonium or triethanolammonium salts include aliphatic, cycloaliphatic or aromatic dicarboxylic acids, aliphatic, cycloaliphatic or aromatic It is possible to use aliphatic diols, hydroxycarboxylic acids and, if these are carboxylic acids, also their derivatives, especially esters. Such compounds include, for example, sodium sulfonate succinate, potassium sulfonate succinate, ammonium sulfonate succinate, 4-sodium sulfonate phthalate,
4-sodium sulfonatophthalic anhydride,
4-potassium sulfonate phthalic acid, 2-sodium sulfonate terephthalic acid, 2-sodium sulfonate terephthalic acid dichloride, 5-sodium sulfonate isophthalic acid, 5-sodium sulfonate propoxyisophthalic acid, 5 -Sodium sulfonate ethoxy-isophthalic acid, sodium sulfonate succinate-dimethyl ester, sodium sulfonate succinic acid diethyl ester, 4-sodium sulfonate phthalate-diethyl ester, 4-
Sodium sulfonate phthalate - dimethyl ester, 4-ammonium sulfonate phthalate -
Dimethyl ester, 2-sodium sulfonate terephthalic acid diethyl ester, 5-sodium sulfonate isophthalic acid dimethyl ester, 5-sodium sulfonate propoxy
Isophthalic acid dimethyl ester, 5-sodium sulfonate ethoxy-isophthalic acid diethyl ester, 5-nalium sulfonate ethoxy-isophthalic acid diisopropyl ester, 5-potassium sulfonate ethoxy-isophthalic acid di-n-propyl ester, Hydroxycarboxylic acids or esters thereof having a sulfonate group include, for example, the following: 5-sodium sulfonate salicylic acid, 5-sodium sulfonate-benzoic acid methyl ester, Furthermore, the following sulfonate group-containing diols or ethoxylated diphenols are also suitable, for example: Disodium-3,6-disulfonate-2,7
-dihydroxynaphthalene, disodium-3,
6-disulfonate-1,8-dihydroxynaphthalene.

For the purpose according to the invention the following general formula In the formula, X=-H, -O-CH ₂ -CH ₂ -CH ₂ -
SO ₃ M or -SO ₃ M M = alkali metal atom, ammonium R = saturated or unsaturated aliphatic, cycloaliphatic or aromatic with 2 to 10 carbon atoms in the aliphatic part between the two oxygen atoms Diol radical having 2 to 10 carbon atoms of an aliphatic compound and/or an ether group-containing saturated aliphatic, cycloaliphatic or araliphatic compound (see the specific examples above) n = average molecular weight of the polyester is 800 A number of size such that ~5000. ) is preferable.

In this case, the following water-soluble polyesters are particularly preferred. That is, 10 to 20 mol% of the phenylene residue is converted to isophthalic acid by condensation of 5-sodium sulfonate propoxy-isophthalic acid dimethyl ester or 5-sodium sulfonate-isophthalic acid dimethyl ester, and 40 to 90 mol% of the phenylene residue is converted to isophthalic acid. or its derivatives and 0 to 40 mol % of phenylene residues are obtained by condensation of terephthalic acid (preferably in the form of dimethyl ester) and 40 to 100 mol % of the diol used are diethylene- and/or triethylene glycol, and 0 to 60 mol % of one or more other diols are diols having more than two ether crosslinks, particularly preferred are polyethylene glycols (average molecular weight 300 to 1000) polyester.

One embodiment of the above general formula is an aliphatic or cycloaliphatic dicarboxylic acid (having 4 to 10 carbon atoms) in which 0 to 40 mol% of the total benzodicarboxylic acid moiety in the formula is
The purpose is to replace it with

Instead of the linear polyesters which are advantageous for preparing the leveling agents according to the invention, it is also possible to use branched, water-soluble or water-dispersible polyesters. They are produced in principle in the same way as the linear polyesters described above, and at least one branched component must be used during their production.

Such branching components include (a) carboxyl groups or esters thereof having 3, 4 or 5, preferably 3 or 4, especially C ₁ -
(b) polyhydroxy compounds having 3, 4 or 5, preferably 3, hydroxyl groups; (c) hydroxyl and carboxylic acid groups _or derivatives thereof, especially Esters with C ₁ to C ₄ lower alcohols 3,4
or 5, preferably 3 or 4 hydroxycarboxylic acids.

The polycarboxylic acids, polyhydroxy compounds or hydroxycarboxylic acids mentioned in (c) having 3, 4 or 5, preferably 3 or 4 carboxyl groups are also optionally SO ₃ M- groups (M is an alkali metal atom or (indicates ammonium).

Suitable branched polycarboxylic acids or derivatives thereof are, for example: trimellitic acid, trimesic acid, hemimellitic acid, merophonic acid, prenitic acid, pyromellitic acid, aconitic acid, tricarballylic acid, ethanetetracarboxylic acid, Trimellitic acid anhydride, pimelittic acid dianhydride, hemimelittic acid anhydride, merophanic acid dianhydride, prenitic acid anhydride, trimellitic acid trimethyl ester, trimellitic acid triethyl ester, trimellitic acid trimethyl ester, hemimellitic acid trimethyl ester, merophonic acid tetra Methyl ester, prenitrate tetramethyl ester, pyromellitate tetraethyl ester, pyromellitate tetraethyl ester, 1,
2,3-cyclohexanetricarboxylic acid, 1,
2,4-cyclohexanetricarboxylic acid, 1,
3,5-cyclohexanetricarboxylic acid, naphthalenetricarboxylic acid.

Polyhydroxy compounds such as glycerin,
Erythritol, pentaerythritol, trimethylolpropane and trimethylolethane are suitable.

When branched, hydroxycarboxylic acids or derivatives thereof are suitable, for example citric acid, malic acid, tartaric acid, citric acid trimethyl ester, malic acid dimethyl ester and tartrate dimethyl ester.

Branched, water-soluble or water-dispersible polyesters containing from 1 to 40 mol %, preferably from 5 to 40 %, of branched components based on 100 mol % of components with carboxyl groups present are particularly used. . It is also preferred that at least 40 mol % of the dicarboxylic acid component present consists of benzodicarboxylic acid, especially isophthalic acid. Furthermore, it is advantageous to select the compounds of the hydroxyl-containing components in such a way that they consist of at least 40 mol % of diethylene glycol and/or triethylene glycol, based on 100 mol % of the di- and polyols.

The necessary water-soluble or water-dispersible linear or branched sulfonate group-containing polyesters can be prepared, for example, by adding bisulfites to double bond-containing polyesters according to German Patent Application No. 2335480. They can be obtained by introducing sulfonate groups into the corresponding saturated polyesters to make them water-soluble.

The determination of the apparent average molecular weight is carried out in a vapor pressure osmometer in dimethylformamide as solvent.

Due to dissociation of the sulfonate groups, the true average value of the molecular weight is greater than its measured, apparent value. However, this measurement is a sufficiently accurate criterion for characterizing the degree of condensation of the polymixed esters according to the invention and for measuring the final products of condensation.

The ethoxylation products of castor oil necessary for the production of the leveling aid according to the invention are partly commercially available as emulsifiers, and castor oil is
Obtained by reaction with ~50 mol of ethylene oxide. The leveling agent according to the invention is prepared by one homogeneous mixing of polyester component A and ethoxylation product B in a weight ratio of 1:(0.1 to 5), preferably 1:(0.5 to 2). Ruru. After mixing components A and B, the pH value is generally weakly acidic. Preferably, the pH value of the leveling agent is adjusted to a pH value of 6 to 7 by stirring in an organic or inorganic base, for example a caustic soda solution. In this case it already exists
COOH - salt corresponding to all or part of the group COOM
Change to However, M is a base cation, preferably an alkali metal or ammonium.

The leveling agents according to the invention can also be used in the form of solutions, for example 10-50% by weight, preferably 10-30% by weight aqueous solutions.

Using the dyeing process according to the invention, all materials made of synthetic fibers, preferably fibers made of linear polyester, can be dyed uniformly. It can be dyed using water-insoluble disperse dyes according to the customary HT-exhaustion method. The dyeing process according to the invention is particularly suitable for dye mixtures that are difficult to handle, for textured materials, for scrolls and for speed dyeing processes. bath stability, exfoliation,
Disturbances such as non-uniformities, color changes, etc. are prevented by the high stability. Surprisingly, the synergistic effect produced by the addition of the ethoxylated product meant that only small amounts of the relatively expensive polyester had to be used. Particularly good results are obtained in the speed dyeing method. In such speed dyeing processes, relatively large amounts of dyeing are unexpectedly delivered to the products to be dyed at temperatures of about 130°C. The resulting risk of uneven dyeing is avoided by using the leveling agent according to the invention.

To carry out the dyeing method according to the present invention, the dye bath is heated to 50 to 60°C using a conventional method, and the pH is adjusted to 4 to 60 degrees using a pH adjusting substance.
Adjust to. The polycondensate according to the invention is then added, preferably in the form of a solution, from 0.02 to 5 g/preferably
Add 0.05-2 g/(based on 100% leveling agent). However, it is of course also possible to add the polyester component and the ethoxylation product separately to the dyebath.

The pre-dispersed water-insoluble disperse dye and the material to be dyed are then added and the required dyeing temperature (approx.
(up to 130°C) and dye using the normal dyeing time. The finishing of the dyeing takes place in a known manner, for example by reductive post-treatment.

In the case of the speed dyeing method, a bath liquor is prepared separately from the material to be dyed, with the addition of the leveling agent according to the invention. The bath heated to a dyeing temperature of 120-130°C is brought into immediate contact with the material to be dyed. When operating in the so-called flow process, the leveling agent according to the invention can also be added to the dyebath before addition of the dye dispersion.

The following abbreviations are used in the examples below:

SPO=5-sodium sulfonate propoxy-
Isophthalic acid dimethyl ester DMT = dimethyl terephthalate IPA = isophthalic acid DEG = diethylene glycol PEG = polyethylene glycol AEO = ethylene oxide SIM = 5-sodium sulfonate - isophthalic acid dimethyl ester PMSA = pyromellitic dianhydride Example 1 (SPO 10 mol%, Equal amounts of ethoxylated product consisting of 4.0 mol% DMT, 50 mol% IPA, 100 mol% DEG, 10 mol% PEG600, 1 mol castor oil and 30 mol AEO) stirrer, thermometer, gas inlet tube and downcooling 132.5 g of diethylene glycol (1.25 mol), 75 g of polyethylene glycol 600 (0.125 mol), 97 g of dimethyl terephthalate (0.5 mol), and dimethyl 5-nalium-sulfonate propoxy-isophthalate in a 4-necked flask with a 4-mole base. 44.25 g of ester (0.125 mol) and 2 g of titanium tetraisopropylate are heated to 150° C. for 1 hour under a nitrogen atmosphere. Approximately 12 g of methanol is distilled out during this process. Melt temperature for 1 hour
Increase to 160°C and then to 170°C for an additional hour. At this time, about 18 g of methanol is further distilled out.
The melt is mixed with 103.75 g of isophthalic acid of 99% purity, and then the temperature is increased to about 10° C. per hour, reaching 220° C. after 5 hours, by passing a constant stream of weak nitrogen. In this case, approximately 20 g of water still gradually distills off. This water also contains a small amount of methanol. It is then heated to 220 DEG -225 DEG C. under nitrogen for 4 hours. The melt must be constantly and vigorously stirred during the entire reaction period. A water jet vacuum of about 10 mmHg is applied here, and the temperature is kept at 220-225℃ until the apparent average molecular weight is about 2000.
Stir further. This corresponds to approximately 6 hours later.
Excess diethylene glycol is also distilled off.
380 g of a highly viscous, amber-coloured melt are obtained, into which at 140-150 DEG C. is stirred carefully (with exclusion of air) an equal amount of a liquid commercial product prepared by adding 1 mol of castor oil to 30 mol of ethylene oxide. .

This yields 760 g of an amber mixture. After cooling, it can be diluted to 2280 g of a 33% aqueous solution using 1520 g of water (2080 g with respect to polyester content).
%). Neutralize this by adding a small amount of 25% caustic soda solution. The slight turbidity can then be removed by mixing with 1% by weight of diatomaceous earth and pressing through a pressure filter.

Example 2 Using the polyester melt in Example 1 with water,
A product similar to Example 1 is obtained by diluting 1900 g of a 20% solution, neutralizing it, mixing 380 g of the adduct into a commercially available mixture of 30 moles of ethylene oxide and 1 mole of castor oil and stirring to homogeneously disperse it.

Example 3 If in Example 1, instead of the addition product of 30 moles of AEO and 1 mole of castor oil, the same amount of the addition product of 50 moles of AEO and 1 mole of castor oil is used, a product with an equally good effect is obtained. It will be done.

Example 4 If in Example 1, instead of the addition product of 30 moles of AEO and 1 mole of castor oil, the same amount of the addition product of 15 moles of AEO and 1 mole of castor oil is used, a product with an equally good effect is obtained. It will be done.

Example 5 When 76 g of an addition product of 30 moles of AEO and 1 mole of castor oil was added in Example 2, an improvement in the leveling effect was also clearly observed. This yields a 23% solution based on solids content.

Example 6 Even when 76 g of the addition product of 5 moles of AEO and 1 mole of castor oil is used in Example 2, an improvement in the leveling effect is clearly observed.

Example 7 If 760 g of the addition product of 30 moles of AEO and 1 mole of castor oil are used in Examples 1 or 2, and this concentration increases to approximately 43% based on solids, then Example 1
A product with improved leveling action compared to that obtained is obtained.

Example 8 A product with very good level dyeing action is also obtained when 1900 g of an addition product of 30 moles of AEO and 1 mole of castor oil is added instead of 380 g of the addition product in Example 1.

Example 9 (15 mol% SIM; 75 mol% IPA; 10 mol% PMSA; 100 mol% DEG; same weight of addition product of 30 mol AED and 1 mol castor oil) Using the experimental apparatus of Example 1, 159 g diethylene glycol
(1.5 mol), 66.6 g (0.225 mol) of 5-sodium sulfonate-isophthalic acid dimethyl ester, 32.7 g (0.15 mol) of pyromellitic dianhydride, and 186.6 g (1.125 mol) of 99% isophthalic acid were stirred thoroughly and nitrogen 1 hour under the atmosphere
Heat to 150℃. The temperature was increased by 10°C every hour, reaching 200°C after 5 hours. The sample is then heated further at this temperature until it clearly dissolves in the water, ie, until the powdered isophthalic acid no longer separates. This corresponds to about 2 hours later, and the acid value is
90, the apparent average molecular weight is about 800. Here, ethylene oxide is present in 328 g of melt.
The addition product of 30 mol and 1 mol of castor oil was stirred in the same weight, cooled to 110°C, and mixed with 1312 mol of water.
A yield of 1640 g (20% based on polyester melt, 33% based on solids) is obtained. This product is neutralized with approximately 40 ml of 25% caustic soda.

Example 10 328 g of polyester melt is first diluted with 1312 ml of water to give a clear amber 20% solution, neutralized with caustic soda solution and then homogenized with 328 g of the addition product of 30 mol of AEO and 1 mol of castor oil. A product similar to Example 9 is also obtained when the mixture is mixed and stirred.

Example 11 A muff made of textured polyester yarn is dyed using an HT-dyeing machine at a pH of 4.5.
Softened water (adjusted with acetic acid) and leveling agent according to the invention 1.5
dye bath at 130°C (bath ratio =
1:10). This bath dye consists of a linear water-soluble polyester (molecular weight 2500). This polyester is polycondensed according to Example 1 from 50 mol% isophthalic acid, 40 mol% dimethyl terephthalate, 10 mol% 5-sodium sulfonate isopropoxyisophthalic acid dimethyl ester, 100 mol% diethylene glycol, and 10 mol% polyglycol molecular weight 600. manufactured by and to which
The same weight of addition product of 30 moles of AEO and 1 mole of castor oil is added. This mixture is diluted with water as described in Example 1.

A mixture of the following disperse dyes in commercial form, predispersed in water at 40° C., is quickly added to this bath using an inlet device: 0.46% dye Dye 0.52% Dye (same part) 0.17% The flow rate into the muff is 20/Kg per minute. 130℃
After 30 minutes of treatment, cool, drain the bath, and wash reductively.

A completely homogeneous brown dyeing is produced with perfect dye yield. When dyed with the same dye under the same conditions. However, if the addition product of 30 moles of AEO and 1 mole of castor oil is mixed without adding polyester, 2 g/mole is required to obtain the same effect.

When dyed with the same dye under the same conditions,
However, as a leveling agent, 30 moles of AEO and 1 castor oil are added to the bath.
If 2 g/mole of addition product is added, an uneven dyeing with poor abrasion resistance is obtained. This oxyethylated product therefore has very little leveling effect itself.

Claims (1)

[Scope of Claims] 1 (A) (a) 100 mol % of one or more saturated or unsaturated aliphatic, cycloaliphatic or aromatic di- and optionally poly-carboxylic acids; and (b) 1 species or species of saturated or unsaturated aliphatics,
Obtained by condensation with 90 to 120 mol% of a cycloaliphatic or araliphatic di- and optionally a poly-ol and/or an ether group-containing saturated aliphatic, cycloaliphatic or araliphatic diol, provided that: 5-40 mol % of all di- and poly-carboxylic acids or di- or polyol chains have sulfo groups in the form of salts, linear or branched, soluble or dispersible in water Polyester (average molecular weight 600~
5000) and (B) castor oil oxyethylated with 5 to 50 moles of ethylene oxide [weight ratio A:B=1:(0.1 to 5)]. 2. The leveling agent according to claim 1, wherein the polyester A is a linear polyester. 3. Claim 1, in which 5 to 30 mol% of all di- and poly-carboxylic acid or di- or polyol chains in polyester A have a sulfo group in the form of a salt, or Leveling agent according to item 2. 4 General formula () [where n is a large number that is the average molecular weight of the polyester from 600 to 5000, and X is a hydrogen atom or the formula -O- _CH2 - _CH2 - _SO3M or _-SO3M (wherein M is hydrogen atom, alkali metal atom, ammonium group or substituted ammonium group), where R is a saturated or Diol radicals (having 2 to 10 carbon atoms) of unsaturated aliphatic, cycloaliphatic or mellow aliphatic compounds and/or of saturated aliphatic, cycloaliphatic or mellow aliphatic compounds containing ether groups. It is. ] The leveling agent according to any one of claims 1 to 3, comprising a polyester represented by the following. 5 10 to 10 of the phenylene residues in polyester
20 mol % by condensation of 5-sodium sulfonate propoxyisophthalic acid dimethyl ester or 5-sodium sulfonato isophthalic acid dimethyl ester, 40-90 mol % by condensation of isophthalic acid or its derivatives and 0~40
Leveling agent according to any one of claims 1 to 4, in which the mole % is obtained by condensation of terephthalic acid (preferably in the form of dimethyl ester). 6. 0 to 95 mol% of the diol used in the production of polyester is diethylene glycol, and 5 to 40 mol% of the diol used is one or more other diols, preferably polyethylene with an average molecular weight of 300 to 1000. The leveling agent according to any one of claims 1 to 5, which is a glycol. 7 Polyester is a branched polyester,
Components with carboxyl groups present 100 mol%
The leveling agent according to claim 1, which contains 1 to 40 mol % of a branched component relative to the dye. 8 Polyester is a branched polyester,
Components with carboxyl groups present 100 mol%
The leveling agent according to claim 1 or 7, which contains 5 to 40 mol% of a branched component. 9 Claims 1, 7, or 9 comprising using a polyester produced using at least 40 mol% of diethylene glycol and/or triethylene glycol based on 100 mol% of the component having hydroxyl groups. A leveling agent as described in any of Item 8. 10. The leveling agent according to any one of claims 1 to 9, wherein the weight ratio of A:B is 1:(0.5 to 2). 11 When uniformly dyeing textile materials consisting of synthetic fibers or mixtures of synthetic fibers and natural fibers with disperse dyes according to the exhaustion method, dyes and dyes are added to an aqueous dyebath.
In addition to PH-adjusting substances, as leveling agents (A) (a) 100 mol % of one or more saturated or unsaturated aliphatic, cycloaliphatic or aromatic di- and optionally poly-carboxylic acids; (b) one or more saturated or unsaturated aliphatics;
Obtained by polycondensation with 90 to 120 mol% of cycloaliphatic or araliphatic di- and optionally poly-ol and/or ether group-containing saturated aliphatic, cycloaliphatic or araliphatic diol, provided that , in which 5-40 mol % of all di- and poly-carboxylic acid or di- or polyol chains have sulfo groups in salt form, or A mixture consisting of a dispersible linear or branched polyester (average molecular weight 600-5000) and (B) castor oil oxyethylated with 5-50 mol of ethylene oxide [weight ratio A:B=1:(0.1- 5)] from 0.02 to 5
The above-mentioned dyeing method is characterized in that the dyeing method is added in an amount of g/g. 12. The method according to claim 11, which comprises adding 0.05 to 2 g of a leveling agent. 13. The method according to claim 11 or 12, which is carried out as a speed dyeing method.