JPS60209213A - Defoaming agent - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to silicone-free antifoam compositions.

It is highly desirable for BT wire fiber finishing methods to use silicone-free defoamers to avoid silicone oil stains on the fibers. Such stains are not easy to wash off without damaging the fibers; however, many known silicone-free agents are
Although they have good antifoaming properties even at temperatures of ~100°C, they are ineffective or insufficiently active under HT conditions, especially those in jet dyeing machines. Another desirable property of defoamers relates to their stability when dispersed in water, particularly hard water, in order to avoid application limitations. According to the present invention, there is provided a stable silicone-free antifoam composition that is particularly active under HT conditions.

The present invention provides a silicone-free antifoam composition comprising: a) a compound of formula I: R-Co-NH-A-NH-CO-R (1), where:
Each R is independently a saturated or unsaturated aliphatic hydrocarbon group having 13 to 21 carbon atoms, which is unsubstituted or substituted with one hydronoxy group, and A is a linear chain having 2 to 6 carbon atoms. b) a melting point of at least 80°C and a melting point of between 1,000 and 20°C;
C) hydrophobic silica gel; d) dl) a silicone-free water-immiscible oil mixture with a natural hydrocarbon oil; dz) a natural vegetable oil, where each part is liquid at 20 °C; and has a boiling point of at least 00°C; e) sl) a mixture of a nonionic emulsifier with an average HLB value of 6 to 10; and C2) a nonionic emulsifier with an average HLB value of 1'0.1 to 12; Here, components a), b) and e) are dissolved or dispersed in component d), and component C) is dispersed in component d).

Compounds of formula (1) are known, for example J, Org.

Chem, 20 (1955), 695-699 or H, B6nnett.

“Industrial Waxes” (Chsmi
aal Publlmh-Quantityng Company I
nc, N.Y., 1975), Volume 1, Chapter 7.

The two radicals R are preferably the same and are optionally substituted with one hydroxyl trap and the radical R-CO- is myristoyl, lumitoyl, stearoyl, oleoyl, lysyl oil or behenoyl, preferably 9 Preference is given to alkyls or alkenyls or mixtures of alkyl and alkenyl derived from fatty acids which are lumitoyl, oleoyl, phenoyl and stearoyl, especially 4-lumitoyl and stearoyl.

Preferred compounds of formula I are compounds of formula ia=n'c
Side-→CH2tT-NHCOR' (I a ) [where n' is 2 or 3, and the two R's are the same and are Ct6-18 alkyl or C16-18 alkenyl or a mixture thereof ].

Preferably n' is 2.

Preferred polyethylene waxes are produced by Ziegler synthesis and have a melting point of 80 to 140°C, especially 90 to 13°C.
It is 0°C, more preferably m-p->
110°C, especially 110-130°C.

The hydrophobic silica of component C) is preferably obtained by surface treatment of colloidal silica having a high surface-to-volume ratio.

Hydrophobic surface treatments are well known and include treatment with fatty alcohols, hydrocarbons, silicone oils or other organosilicon compounds, waxes or fatty amines. It is noteworthy that the surface treatment of component C) with silicone does not result in free siliconin in the compositions of the invention and that even compositions according to the invention containing silicone-surface-treated silica are considered silicone-free.

The finely divided silica made hydrophobic by surface treatment is preferably "huum silica" obtained by thermal decomposition, silicate dal dehydrated without loss of structure, or precipitated silica obtained by aqueous chemical reaction.

Preferably, the finely divided silica has a specific surface area of 50-600 m''/I, which remains the same after treatment and imparts hydrophobic properties.

The silicone-free oil of component d) is at least 60°C.
Preferably, it has a flash point of .

Natural hydrocarbon oils suitable for use as component d1) include those obtained by distillation of crude oil, bitumen and coal, for example heavy petroleum or naphtha, boiling range 100-180°C (C8-1゜); Kerosene or Ruffin, boiling point range 180-230℃ (C
,,-12): Gas oil, boiling point 230-305℃ (
C1g-17): Light lubricating oil, boiling point range 305-40
5℃ (cls-25): Heavy lubricating oil, boiling point range 405
-515°C (cz6-C8): Isonomater rough-in, boiling range 100-250C: Alkylaromatics obtained by catalytic reforming of crude oil, boiling range 190-300°C; low-temperature coking of lignite or other bituminous materials It is an oil obtained from

Preferably, the natural hydrocarbon oil is heated to a temperature above the temperature at which the antifoaming agent is used, preferably above 160°C, more preferably above 200°C.
It has a boiling point above ℃. Particularly preferred are gas oils, lubricating oils and high boiling isono-4 rough-ins.

Vegetable oils suitable for use as component d2) are primarily fatty acid triglycerides, which are usually complex mixtures of different triglycerides, each of which can be a triester of two or three different fatty acids. Ester-forming fatty acids may be saturated or unsaturated and may be substituted with one hydroxyl group. Examples of saturated-basic fatty acids and corresponding oxyacids include n-casillonic acid, casorylic acid, capric acid, lauric acid, myristic acid, 4-lumitic acid, stearic acid, oxystearic acid, arachidic acid, behenic acid and lignocerin. Acids can be mentioned. Examples of unsaturated glyceride-forming fatty acids are those having 10 to 24 carbon atoms, such as i4 lumitoleic acid, oleic acid, elaidic acid, petroselic acid, gadoleic acid.

These are erucic acid, linoleic acid, lylinic acid, stearolic acid, and ricinoleic acid.

Suitable vegetable oils containing glycerides of the aforementioned fatty acids include coconut oil, linseed oil, palm oil, olive oil, castor oil, bean oil, rapeseed oil, sesame oil, cottonseed oil, corn oil, soybean oil, safflower oil, sunflower oil, and One example is tung oil.

Among these, corn oil, rapeseed oil and peanut oil are preferred.

Preferably, component Q) of the composition according to the invention is a vegetable oil in which at least 40% of the glyceride-forming fatty acids are ethylenically unsaturated fatty acids having a carbon number of at least ]8, preferably at least 7ON, especially oleic acids. , linoleic acid, lylunic acid and erucic acid. Particularly preferred are oils in which the ester-forming unsaturated fatty acids are a mixture of monoethylenically unsaturated and diethylenically unsaturated acids.

The weight ratio of component ds) to component d2) is preferably 3-1=
It is 1.

Preferably component d) is a mixture of oils containing a lubricating oil as component dl) and corn oil and/or bean oil as component di).

In the absence of added water, the composition according to the invention consists of a continuous phase in which components a) and b) are dissolved or as finely dispersed as possible in component d) and component C) is dispersed as finely as possible. Component a).

Calculating b), c) and d) as a proportion of the total weight, each concentration of components a) and C), considered separately and independently, is preferably 1-8N, more preferably 2-6X
and the concentration of component b) is preferably 0.5-8%, more preferably 1-5%.

Nonionic emulsifiers suitable as component e) include: I realkylene glycols, especially ethylene oxy l'(
EO)/propylene oxide (po) copolymers; alkoxylated products of higher fatty alcohols or fatty acid amides; polyethylene glycol esters of long-chain fatty acids; one OH group is esterified or etherified with a long-chain acyl or alkyl group, Polyglycol derivatives in which the other OH groups are esterified or etherified with short-chain acyl or alkyl groups; polyfunctional alcohols, such as fatty acid esters of glycerol, mannitol and sorbitol, and cyclic ethers of polyfunctional alcohols. and polyadducts of polyfunctional alcohols with EO and/or PO; hydroxyalkyl fatty acid amides and their alkylene oxide adducts nioxyalkylated mono- and dialkylphenols.

Preferred nonionic emulsifiers e) include sorbitol and acid R,
Ethoxylated mono-, di- or tri-esters with -OH and/or compounds of formulas: R, (o-cu, -cH2+-0-R2 -CH2-CH2→-OH (1%l) [where R1 is an acyl group of a C12-18 fatty acid; R2 is hydrogen or an acyl group of a C12-113 fatty acid; R5
is CB-12 alkyl; - R4 is hydrogen or C8-12 alkyl; R5 is a primary or secondary C9-18 alkyl or C9-18 alkenyl group: m is 4-10): p1iaI '2''::: r and 8 are each at least 1, and r+8 is 2-
15].

Among the above, compounds of formulas (1), (2) and (2) and ethoxylated sorbitol are preferred. Particularly preferred are compounds 2 and 1 and ethoxylated sorbitol esters.

Preferred emulsifiers as component el) are compounds of the formula 2, in particular m is 4 to 8, more preferably 5 to 7, and R1 and R2 are each C14-18 acyl.
It is a compound of Preferred emulsifiers as component el) are:
Compounds of formula (1), especially those in which p is 3 to 8, more preferably 4
~7 and R4 is hydrogen, and/or an ethoxylated sorbitol ester.

In the compositions of the invention, the emulsifier or) preferably has an average HLB value of 6.5 to 8. Emulsifier 1) is 1
It is preferred to have an average) LB value of 0.1-11. Although the emulsifiers as) and/or C2) may each be a single compound, it is preferred that they are each present as a mixture of compounds. The emulsifier of formula (1) is preferably a mixture of mono- and diesters having a degree of esterification of 1 to 2, and t+ is a mixture of partial esters.

Preferably, the concentration of total emulsifier e) is a) + b) + e
') + d) + e) = 100, 7 to 3
0%, especially 10-25N. The weight ratio of emulsifier es) to emulsifier e) is conveniently from 0.2 to 2, preferably from 0.4 to 1.2.

Composition a) b) + c) + d) + s) has good antifoaming properties and surprisingly,
In water, it was also found to have The compositions of the present invention can be easily diluted with water. The composition of the present invention comprises:
70-95% by weight of the total weight of the aqueous composition, preferably 8%
A so-called stock dispersion can be prepared by mixing with an amount of water between 0 and 90% by weight.

Such Hiko dispersions can be further dispersed in water for use as O/W emulsions (IJ) and as defoamers in aqueous systems.

The composition according to the invention has a rotational viscosity of 5 to 5.00 at room temperature.
It is a liquid that can be poured at room temperature at 0 cp.

The composition can be prepared simply by mixing the ingredients together. A preferred sequence of operations is to dissolve or disperse component b) in the oil dt), dissolve or disperse component a) separately in the oil dz), then mix the two oil solutions or dispersions with each other and remove component C1).

el) and C2) and optionally further oil dl)
This is the order in which they are added. The resulting composition can be diluted immediately with water.

The antifoam compositions of the present invention have a tendency to foam and can be added to aqueous systems where bubbles are not yet formed to prevent or inhibit the formation of bubbles. Masuke Tomokuwa stamp right 1
It can be added to the product system to completely or partially destroy any air bubbles present and to limit or prevent further foaming from occurring.

Aqueous systems with a tendency to foam are used in many technical processes, for example during the preparation of latex, adhesives, starches, cellulose and sugars: in particular when mixing aqueous sludges in sewage treatment or flotation of ores or dispersible wastes. in the production of paper and non-woven fabrics, especially on high-speed machines; and aqueous polymer dispersions containing air-forming components, acrylic resins, leather treatment liquids, e.g. degreasing liquids, textile treatment liquids (
This occurs especially in the presence of baths containing dyes or fluorescent brighteners together with surfactants) and paper coating systems.

Preferred applications include foaming in aqueous fiber treatment liquids that may be applied to the fibers at any processing stage including sizing, pre-treatment, fluorescent brightening treatments, dyeing or printing, anti-wrinkle treatments and other post-treatment operations. It is prevention. "Fibers" means fibers in any stage of manufacture, including coarse fibres, filaments, textured yarns, threads, winds, threads, woven, silk or tufted fabrics, 7-elts, kaites, and semi-finished or finished products; m- is used in a broader sense to include. The nature of the fiber (natural, synthetic or semi-synthetic) is not important.

Such liquids can be applied by any conventional method such as purging or atmospheric or high pressure exhaustion. The composition of the present invention is prepared under pressure in a closed container under %KHT conditions, i.e. above 100°C, preferably at 102-16
It is particularly suitable for use in fiber treatment fluids applied at temperatures of 0°C, more preferably 105-150°C. The compositions of the invention are suitable for use in winchbeck and other high speed equipment such as jet dyeing machines where there is a strong tendency for bubble formation due to water vapor production and rapid movement of fibers and liquids and where the bubbles tend to expand when the pressure is removed. It is particularly useful in

The processing liquid may contain various processing agents such as sizing agents, #$1 fiber conditioners, desizing agents, detergents, bleaches, wetting agents, resin processing systems, softeners, antistatic agents, fluorescent brighteners and dyes: and Dyeing aids such as carriers, leveling agents and dispersants can be contained. The compositions of the present invention are particularly useful when the aqueous liquid contains a treatment agent or adjuvant that promotes bubble formation, and may not adversely affect the treatment of the substrate. to reduce Particular preference is given to use in dyebaths containing disperse dyes, especially under HT conditions.

The compositions of the invention can be added to the aqueous processing liquid as is or after dilution with water, eg as a neat dispersion, at the beginning and/or during the process.

The concentration of the composition according to the invention is determined by the concentration of the components a) t in the aqueous system.
b) e c) - Calculated on the basis of d) and e) at least o, o o O1 p/l is preferred. The optimum concentration for a given system will vary considerably depending on the nature of the system, processing conditions, particular composition used and desired effect, but can be readily determined by simple testing. The preferred concentration of water-free compositions in aqueous systems is 0.00
01-Fl/l, more preferably 0.001-I11
/, but in a paper coating system, the concentration is preferably 0.
．． 0001-0.1117 to 9, more preferably 0.
0001-0.01117 is 9.

The invention is illustrated by the following examples (all parts are by weight and all temperatures are in degrees Celsius).

Preparation of Dispersion 30.8 parts of N',N-distearoylethylenediamine and 123.0 parts of peanut oil (D2) are heated under vacuum with stirring to obtain a clear homogeneous solution.

The resulting solution is added to 119.8 parts of peanut oil at room temperature while stirring under vacuum (30-60 mbar).

A dispersion forms, which is cooled to room temperature.

21.4 parts of polyethylene wax (B) and 213.
9 parts of mineral oil (D,) are heated until a clear solution is obtained. Stop heating and allow the solution to cool to room temperature while stirring. A fine dispersion is produced.

Preparation of the final product of gold platinum qID: 273.6 parts of the dispersion product was added to the /lyethylene wax dispersion obtained in (11) above, and then 29.6 parts of the dispersion product was added.
Add 8 parts of hydrophobic silica (C7). As soon as the silica is completely dispersed, the pressure is reduced by 30-630-6 OK and the mixture is stirred vigorously until a homogeneous fine dispersion forms. The agitation speed was then reduced, the vessel was sparged with air, and 316.1 parts of mineral oil (Dl) 72
．． 6 parts of emulsifier (E,) and 72.6 parts of emulsifier (B)
Add 2). The product (1000 parts) is a finely fluid dispersion with the following composition: C,,B35-Co-NH-(C12)2-NH-Co
-C1, Hs53. IN polyethylene wax (B
, ) 2. IN Hydrophobic silica (C1) 3.0% Mineral oil (Dr) 52.9N Peanut oil (D2) 24.3 N Emulsifier (B1) 7.3% Emulsifier (B2) 7.3X fIψ Identification of starting materials Polyethylene wax ( B,) Molecular weight 2000-'
5000 Specific gravity 0.92-0.94 m, p, 118-123°C Water content <0.3% Acid value 0 Acid value 0 Specific surface area (BET) 90 m” / 1 Average particle size 1
8 parts m sto□ content 98% Na2O content 0.8% SO content 0.8% Mineral oil (D,) Hydrocarbon mixture of the following details at normal pressure, p
, Range 320-390 parts Specific gravity 0.85-0.95 Water content <0.1% Acid value <1 Aniline point 70-80 Refractive index nD 1.483-1.486 Iodine number 20-30 Flash point 165° Emulsifier ( El): C17H33CO+0C2H4+-X
O・CO・C17 horse, and C17H53C needle ÷ 0C2H4
) 1:1 molar mixture with τOH Average HLB value 7.0 HLB value = 10.4 Example 2 To 20 parts of the above composition 80 parts of deionized water are added at room temperature with stirring. A stable milky dispersion can be obtained.

Example 3 A milky dispersion is obtained according to the procedure of Example 2, except that 80 parts of 20' dH water are used. This dispersion is stable at room temperature for at least 12 hours.

10 parts of polyoxyethylene 20-sorbitol trioleate (HLB value=11.0) are added to 100 parts of the dispersion obtained in Example 1 with stirring.

In the application examples below, the composition of Example 1 is used as the aqueous dispersion of Example 2.

Application example A Pre-washed polyester cloth (Dacron T54-5-76
1) is dyed in a jet dyeing machine with a capacity of 1200 m1 using an aqueous dye solution 600 #IJy of the following composition: 5% (based on the weight of the base fabric) C, 1, Dis/9-thread 167 111/It uniformity. Dye (condensed with 30 moles of EO)
14-18 fatty alcohol, iodine number = 55) 111/I
Dispersant of I (funnel oil) 211/71 ammonium sulfate □ Formic acid adjusted to pH 5 Composition of Example 1 of 0.651/l The fabric:liquid ratio was 1:20, the liquid circulation rate was 1.5! /minute. Heat the liquid from 30' to 1300°C over 30 minutes, close the apparatus at 800°C and pressurize with air to over 1 atmosphere. Once 1300°C is reached, dyeing is continued at this temperature for 60 minutes, then the liquor is cooled and the pressure is removed when the temperature has fallen to 85°. There is significantly less bubble formation than in the absence of the composition of Example 1.

Application example B Repeat application example A with the following exceptions. The liquid is 0.51/
1 of leveling agent, but no dispersing agent.

Cloth:liquid ratio is 1:25, circulation speed is 1.91171
It is 1. Heat the bath from 30' to 1300 over 50 minutes, hold at 1300 for 30 minutes, then cool.

There is significantly less bubble formation than in the absence of the composition of Example 1.

Application Example C Cotton Fletton is dyed in the same jet dyeing machine as in Example A using the following dye liquor (6001d') at a fabric/liquid ratio of 1:20 and a circulation rate of 1.5117 minutes.

10X (based on base fabric) of C,1, Reactive Blue 116 60 El/13 of Grauper's Salt 20 I/L of the composition of Example 1 at 0.751/l from 300 to 60° for 30 minutes Heat, 60
' for 60 minutes and then cooled to 40°.

The amount of bubbles produced is significantly lower than in the absence of the composition of Example 1.

Application example D Wool gabardine was treated with the following liquid 600-
using a cloth/liquid ratio of 1:20. Stain at a circulation rate of 1.51/min.

1, ON (based on base fabric) C, 1, Acid Black 52. 0.511/l leveling agent of Example A 10.0X (based on the base fabric) concentrated sulfuric acid 0°511/1 of the composition of Example 1 was heated from 30' to 98° for 30 minutes and 98
Hold at ' for 60 minutes and then cool to -40°.

There is significantly less foam formation than when the composition of Example 1 is omitted.

Application example E Prepare a paper coating paste with the following composition: 26.73N
of Kaolin 0.05% Sodium Tripolyphosphate 0.01N Sodium Polyacrylate 0.03N Caustic Soda 5.35% Dow-Latex 620 67,83% Water Composition of Example 1 0.02% (Kaolin (based on weight). This product was called “Wochenblatt f.
irPapi@rfabrikation” a 1
04, 1'17-8 (1976) # -A 3 (H
, Pummer). Foam formation in the application paste is significantly reduced by the presence of the composition of Example 1.

Application example F Polyester cloth with a capacity of 650130kl? Fabrics (base fabrics) are dyed under HT conditions using dye liquors with a particularly high tendency to bubble formation in a mini-jet machine.

Base fabric: Polyester, pre-washed/pre-fixed, 17k
liF=260m Dye liquor: 4501 deionized water 0.95% (based on base fabric) C,1, Dispersed Red 167 11//l leveling agent of Example A 1.9/no Dispersant of Example A 21/l ammonium sulfate 200 iJ formic acid (pH 5 tol') 0.651/I
Example I Product fabric:liquid ratio 1:26. Cloth speed 75m/min. 60' to 1
Heat to 260° for 2 hours, hold at 1.126° for 30 minutes, cool from 1260 to 60′ for 30 minutes. No bubble formation occurs during the entire process.

Examination of the dyed article reveals the presence of spots or uneven areas due to the antifoam agent.

Application example G Polyester cloth is HT with a 7 trow jet machine
Stain under conditions.

Base fabric: Smooth circular knitted targal cloth, 1301//m”
.

110 dtex, 30z15, 9.1kl? .

Fill the machine with 5' dH cold tap water and set the liquid to cloth ratio to 1.
:15. While heating to 50', the following ingredients are added in the following order: 0.211/l of the product of Example 1 2.01/l of monosodium phosphate 1.49/l of US Pat. , No. 119, Example 14
When the product Loll/l funnel oil reaches 50°C, add 0.05X C,1, Dice Nurse Orange 30 and adjust the pH to 5.2 with acetic acid. Increase temperature to 90° at 1°/min, 1300° in 47 minutes
The mixture was heated to 1300°C and held for 30 minutes at 1300°C, then cooled to 50'O, drained, and rinsed once with cold. No air bubble formation was observed during the dyeing process.

The composition of Example 1 can also be used as the aqueous dispersion of Example 3 in the steps of Application Examples A-G. Similar good results are obtained.

Similar good results are obtained if the composition of Example 1 is added as an aqueous dispersion as described in Example 2 in place of the composition of Example 4.

patent applicant sand act change gel shaft patent application agent Patent attorney Akira Aoki Patent attorney Kazuyuki Nishidate Patent attorney 1) Yukio Patent attorney Akira Yamaguchi Patent Attorney Masaya Nishiyama

Claims (1)

[Claims] 1. A silicone-free antifoaming agent consisting of the following components: a) Compound of formula (■): R-Co-Nu-A-NH-Co-R(I) 〔here,
Each R is independently a saturated or unsaturated aliphatic hydrocarbon group having 13 to 21 carbon atoms, which is unsubstituted or substituted with one hydroxyl, and A is a straight chain having 2 to 6 carbon atoms. b) a melting point of at least 80°C and a melting point of between 1,000 and 20°C;
c) hydrophobic silica gel; d) dl) a silicone-free water-immiscible oil mixture with a natural hydrocarbon oil; da) a natural vegetable oil, where each part is liquid at 20 °C; and having a boiling point of at least 100° C., but further: as) a nonionic emulsifier having an average HLB value of from 6 to 10, and e*) a nonionic emulsifier having an average HLB value of from 10.1 to 12; Here, components a), b) and e) are dissolved or dispersed in component d), and component C) is dispersed in component d). 2. Antifoaming agent according to claim 1, wherein component a) has the formula 1a: R'CONH-1CH2'-NHCOR' (I a
) [Now, the two Bts are the same and have 16 carbon atoms.
18 alkyl t or alkenyl or a mixture thereof, and n' is 2 or 3]. 3. The antifoaming agent according to claim 2, wherein component a) is N,N'-distearoylethylenediamine. 4. Antifoam agent according to any of claims 1 to 3, wherein component b) is a polyolefin wax with a melting point of 90-130C. 5. Component dl) is selected from gas oil, lubricating oil and high boiling point iso/f rough-in.
The antifoaming agent according to any one of Item 4. 6. The antifoaming agent according to any one of claims 1 to 5, wherein component ds) is a vegetable oil in which at least 4ON of the glyceride-forming fatty acids are ethylenically unsaturated fatty acids having at least 18 carbon atoms. 7. Antifoam agent according to claim 6, wherein component d3) is selected from corn oil, rapeseed oil and peanut oil. 8. The weight ratio of component dJ) to component ds) is 3-1:1.
The antifoaming agent according to any one of claims 1 to 7. 9. Emulsifier e) is sorbitol mono-
, di- or triester ethoxylation products and compounds of formula H to V: R1-+o-cH2-CH27 -R2(I)4 R5-+O=CH2-CM2 bar on" (ff) [Here, R1 is an acyl group of a C1□-18 fatty acid; R2 is hydrogen or an acyl group of a C12-18 fatty acid. Yes; R3 is C8-12 alkyl; R4 is hydrogen or C8-12 alkyl; R5 is primary or secondary alkyl, or C9-1
8 alkenyl group; m is 4-10; p is 3-12; q is 2-15; and r and 8 are each at least 1 and r+, - is 2-
15].゛10. Antifoam agent according to claim 9, wherein the emulsifier l) is a compound of formula l. 11. The antifoaming agent according to claim 10, wherein the emulsifier o1) is a compound of formula (2), wherein m is 4 to 8 and R1 and R2 are each C16-18 acyl. 12. The antifoaming agent according to any one of claims 9 to 11, wherein the emulsifier ox) has an average HLB value of 6.5 to 8. 13. Emulsifier a2) is a compound of formula (■) and/or
An antifoam agent according to claim 9, which is an ethoxylated sorbitol ester. 14. The antifoaming agent according to claim 13, wherein in the compound of formula (1), p is 3 to 8 and R4 is hydrogen. 15. The antifoaming agent according to any one of claims 9 to 14, wherein the emulsifier has an average HLB value of 10.1 to 11. 16. Antifoaming agent according to any one of claims 1 to 15, characterized in that the total emulsifier is 7 to 3 ON based on a) + b) + e) + d) + e) = 100K. 17, the weight ratio of emulsifier el) to emulsifier Jl") is 0.2
-2, the antifoaming agent according to any one of claims 1 to 16. 18. An antifoam agent according to any of claims 2 to 17, containing from 70 to 95 weight of water based on the total weight of the aqueous antifoam agent. 19. The antifoaming agent according to claim 1, which is described in any of Examples 1 to 4. 20, components a) to e) below: a) Compounds of formula I; R-Co-NH-A→l'H-CO-R(I), where each R is independently unsubstituted or or a saturated or unsaturated aliphatic hydrocarbon group having 13 to 21 carbon atoms substituted with one and toroxyl, and KA is a straight alkylene chain having 2 to 6 carbon atoms); b) Melting point of at least 80°C and 1,000-20.
C) hydrophobic silica gel; d) dt) a natural hydrocarbon oil; d) a silicone-free water-immiscible oil mixture with a natural vegetable oil, where the 6 oils are Liquid at 20℃ or at least 100℃
and a) a mixture of a nonionic emulsifier with an average HLB value of 6 to 19 and a nonionic emulsifier with an average ML, B value of 10.1 to 12; ) * b) and e) are component d) K dissolved or dispersed, component C) is dispersed in component d),
mixing together a solution or dispersion of component a) dissolved or dispersed in component ds), a solution or dispersion of component b) dissolved or dispersed in component ds) and component C), component as) and component ex); The method for producing the antifoaming agent, characterized in that the method comprises: 2. A method for reducing foam formation in an aqueous system, characterized in that an effective amount of an antifoaming agent according to any one of claims 1 to 19 is added to the aqueous system. 22. Claim 2, wherein the aqueous system is a fiber treatment liquid
The method described in Section 1.・2. Adding an effective amount of the antifoaming agent according to any one of claims 1 to 19 to the treatment method'@:4IlFI
! [a method of treating fibers under HT conditions. 2. The antifoaming agent according to any one of claims 1 to 19 is calculated based on component a) a b) # C) s a) and e) jj70.0001-5F/7
Fiber treatment liquid, which is indicated by percentage. 25. Disperse dye and components a) l b) of the antifoaming agent according to any one of claims 1 to 19. c), 0,00 according to calculations based on d) and e)
Dye bath containing 1-11/l, which is 4I fine. 26. A method for reducing foam formation in an aqueous system according to claim 21, as described in any of Examples AG.