JPH09324364A - Scouring agent composition for fiber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a scouring agent composition for fibers, excellent in permeability, compatibility and low-foaming property and capable of imparting the treated fibers with improved rewettability even in a scouring treatment under high alkali conditions by compounding a specific nonionic surfactant, a specific phosphoric acid ester of a polyalkoxy alkyl ether, etc. SOLUTION: This scouring agent is composed of (A) a nonionic surfactant of formula I [R1 is an 8-18C alkyl, an 8-18C alkenyl, an 8-22C alkylaryl, etc.; AO is a 2-3C oxyalkylene; (n)=3-30] singly or in a combination of two or more kinds and (B) a phosphoric acid ester (salt) such as a sesquiphosphoric acid ester (salt) of a polyalkoxy alkyl ether of formula II [R2 is an 8-18C secondary alcohol residue or a 12-24C Guerbet alcohol residue; (m)=1-10]. Further, a compounding ratio of the component A and the component B, components A/B, is preferably 70/30 to 99/1 by weight.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a scouring agent composition for fibers, and more particularly, when degreasing, scouring, bleaching or mercerizing an unscoured raw fabric such as cotton and synthetic fibers and mixed fiber products thereof. The present invention relates to a scouring agent composition for fibers used.

[0002]

2. Description of the Related Art Weaving and knitting greige are desizing,
The scouring, bleaching or mercerizing process is a very important process in the fiber dyeing process to avoid physical damage such as unevenness of dyeing, abrasion and abrasion in the subsequent dyeing, finishing and sewing processes. is there.

[0003] desizing cotton, scouring, bleaching, in mercerized step, first desizing some cases carried out using a-amylase and nonionic surfactant However, persulfate [Na ₂ S
₂ O ₈ , (NH ₄ ) ₂ S ₂ O ₈ ], bromate (Na ₂ BrO ₂ ), hydrogen peroxide
(H ₂ O ₂ ) or the like is often used under alkaline conditions. 30-80g / for de-sizing, scouring and bleaching of thick fabrics or fabrics with high woven density, especially with blended fibers of cotton and other fibers
It is often performed in a continuous process at a high speed under a caustic soda solution having a high concentration of 1 liter.

On the other hand, in the polyester new synthetic fiber fabric, the fineness becomes finer and a large amount of paraffin wax and sizing agents such as acrylic ester type and polyvinyl alcohol type are used in the spinning stage to protect the yarn. However, if they are not completely removed in the scouring process, smoke or uneven dyeing may occur in the drying process. For this reason, the scouring process is very important.

In the case of woven fabrics, as a mechanical device used to smoothly carry out this important scouring process, most of the woven fabrics are devices for continuously desizing, scouring, bleaching and mercerizing.
J-Box type, L-Box type, Purple range type or Venteller type desizing, scouring and bleaching equipment are used, and clip mercerizing machine and chainless mercerizing machine are also widely used for mercerization. . In the case of some woven fabrics and knitted fabrics, a wins type or jet dyeing machine as a batch type device,
A vertical flow type beam dyeing machine or a relaxer may be used, or the yarn may be refined in a yarn state by an Overmeier type dyeing machine or a cheese dyeing machine. When using these devices, the processing speed is, for example, 20 in a continuous device.
It is about 0 m / min, which is significantly faster than the conventional one, and high-performance refining agents are becoming more and more desired.

In such a refining step, a refining agent for removing dirt from a woven or knitted fabric is usually used,
Conventionally, nonionic surfactants, anionic surfactants, and mixtures thereof have been mainly used as such refining agents.

[0007]

Among the refining agents used in the refining step, nonionic surfactant-based refining agents include nonylphenol and octylphenol, synthetic primary alcohols [Dovanol (manufactured by Mitsui Petrochemical Co., Ltd.),
Addition of propylene oxide or ethylene oxide such as neodol (manufactured by Shell Co.)], secondary alcohol (softanol (manufactured by Nippon Shokubai Co., Ltd.), tergitol (manufactured by Union Carbide Co.) or natural higher alcohol (calcul (manufactured by Kao Co.)). Compounds, propylene oxide and ethylene oxide adducts of styrenated phenol and benzylated phenol, and propylene oxide and ethylene oxide adducts of branched alcohols such as 2-ethylhexanol and isotridecyl alcohol have been proposed. However, neither of them dissolves uniformly.

On the other hand, various compounds have been proposed as anionic surfactant-based scouring agents. Recent examples include U.S. Pat. No. 4,889,945 and U.S. Pat.
Alkyl or alkenyl polyether phosphate salts described in, for example, the specification (Sandoz).
However, this compound is excellent in permeability in a single aqueous solution, but is inferior in permeability and detergency when performing steps such as desizing, scouring, and bleaching at a high alkali concentration. Cannot be used as

As the anionic surfactant-based refining agent, linear alkylbenzene sulfonate (LAS), alkyl sulfate, alkyl ether sulfate, alkyl naphthalene sulfonate, secondary alkane sulfonate, branched alcohol alkylene oxide. Salts of carboxymethylated adducts are also known. Above all, secondary alkane sulfonates and salts of carboxymethylated products of branched alcohol alkylene oxide adducts are excellent and have been preferably used as those having penetrating power and detergency under alkali. However, salts of such secondary alkane sulfonates and carboxymethylated products of branched alcohol alkylene oxide adducts,
Although it shows relatively good penetration and detergency under alkaline conditions, the mixture of nonionic surfactant and nonionic surfactant is often incompatible with high alkali and has high foaming. It cannot be used as it is for recent desizing, scouring, bleaching, etc., where high-speed scouring is performed under such high alkali. In addition, even if it can be used, there are many bubbles, and the above-mentioned problems are many.

Therefore, a defoaming agent such as mineral oil, polypropylene glycol, dimethyl siloxane oil, a mixture of silica gel and silicone, an adduct of reactive silica gel and silicone, etc., is used in a polishing agent in which an anionic surfactant and a nonionic surfactant are used in combination. May be used in combination.
For example, in JP-B-45-7973, polypropylene glycol or _{RCOO (C 2 H 4 O)} l (C 3 H 6 O) m (C 2 H 4 O) in combination antifoam agent such as _n OCR is illustrated Has been done. However, the refining agent formulations containing these antifoaming agents have the following drawbacks (1) to (3) when used in a highly alkaline aqueous solution. (1) It is not compatible with alkali and the solution becomes cloudy and forms flocs. (2) The defoaming agent may be selectively adsorbed on the cloth, and scouring,
The rewetting property of the bleached cloth may be deteriorated or uneven dyeing may occur. (3) Since the defoaming agent is adsorbed on the cloth, there is no defoaming effect in the actual system, but the defoaming effect decreases.

Further, Japanese Patent Application Laid-Open No. 8-60532 discloses a scouring agent composition in which a specific polyoxyalkylene type nonionic surfactant and an anionic surfactant are used in a specific ratio. The official gazette does not indicate a refining agent effective in the refining treatment under high alkali.

As described above, although the speeding up of the refining process and the alkalinity are being advanced today, no refining agent having the performance capable of coping with this has been found. Therefore, an object of the present invention is to exhibit excellent compatibility, low foaming property, and excellent penetrability and rewetability even in the case of being used for scouring treatment under such high speed and high alkali. It is to provide a scouring agent as shown.

[0013]

Means for Solving the Problems As a result of intensive research to solve the above-mentioned problems, the present inventors have shown that they have excellent penetrability and scouring property, and also have excellent rewetting property of the cloth after scouring. In today's high-speed automated desalting under high alkali, scouring, bleaching, and other similar processes, we have found a scouring agent that is evenly compatible and that has a low foam in the actual cleaning solution. It was

That is, the present invention provides (A) _one or more nonionic surfactants represented by the following general formula (I) and R ₁ O (AO) _n H (I) (wherein R ₁ is a linear or branched alkyl group having 8 to 18 carbon atoms, a linear or branched alkenyl group having 8 to 18 carbon atoms, an alkylaryl group having 8 to 22 carbon atoms, or an aralkyl group having 8 to 22 carbon atoms , AO represents an oxyalkylene group having 2 to 3 carbon atoms, and n represents a number of 3 to 30.) (B) A phosphoric ester of a polyalkoxyalkyl ether represented by the following general formula (II) and / or The salt R ₂ O (AO) _m H (II) (wherein R ₂ is a secondary alcohol residue having 8 to 18 carbon atoms or a Guerbet alcohol residue having 12 to 24 carbon atoms, and AO is 2 carbon atoms).
-3 is an oxyalkylene group, and m is a number of 1-10. The present invention provides a scouring agent composition for fibers, which comprises:

As a refining agent used for de-sizing, scouring and bleaching a textile product after knitting or weaving, a combination of the above-mentioned component (A) and a general anionic activator such as sulfonate, sulfate, phosphate or ether carboxylate, It is already known that a refining agent having excellent penetration and cleaning properties can be obtained, but such refining agents do not become compatible with each other by clouding or forming flocs in a highly alkaline aqueous solution, leading to uneven refining. It is dangerous and has the drawback of high bubbles during rinsing. However, the present inventors described above (A)
It is possible to obtain a scouring agent composition having excellent penetrability and scouring property by only combining the component (B), which is a phosphate having a specific alkyl group structure, with the solubilization without forming flocs even under high alkali. did it.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION The component (A) of the present invention has the general formula
(I) is a polyoxyalkylene-type nonionic surfactant represented by the general formula (I), wherein R ¹ is nonylphenol, octylphenol, tribenzylated phenol, styrenated phenol or synthetic primary alcohol (dovanol ( Mitsubishi Chemical), Neodol (Shell), isotridecyl alcohol, isodecanol, 2
Examples include groups derived from ethylhexanol], natural higher alcohols [Calcor (manufactured by Kao Corporation)], or Guerbet alcohols and secondary alcohols [Softanol (manufactured by Nippon Shokubai Co., Ltd.), Taditol (manufactured by Union Carbide Co.)]. but scouring property, from the viewpoint of biodegradability, C ₁₀ -C ₁₅
Oxo alcohols such as dovanol and neodol, secondary alcohols such as softanol, and natural alcohols such as charcoal are preferable.

The alkylene oxide constituting the component (A) nonionic surfactant is ethylene oxide,
Examples thereof include propylene oxide, butylene oxide, and styrene oxide. Preferred are ethylene oxide and propylene oxide. The addition mode is preferably ethylene oxide single adduct or ethylene oxide and propylene oxide adduct. When ethylene oxide and propylene oxide are used in combination, the molar ratio of ethylene oxide (EO) and propylene oxide (PO) is preferably EO / PO = 100/0 to 50/50. In this case, the addition form may be random or block.

The component (B) of the scouring agent composition of the present invention is a phosphoric acid ester of a polyalkoxyalkyl ether represented by the general formula (II) and / or a salt thereof. Take (B)
The component is characterized in that R ₂ in the general formula (II) is a group derived from a secondary alcohol or a group derived from Guerbet alcohol. The component (B) containing such a branched group having a large number of carbon atoms or a secondary alcohol residue improves the solubility of the nonionic surfactant of the component (A) under high alkali.

Among the component (B) of the present invention, examples of the secondary alcohol residue having 8 to 18 carbon atoms which constitutes R ₂ include the alkyl residues of softanol and tarditol listed in the above (A). The Guerbet alcohol is preferably a C ₁₆ -C ₂₀ Guerbet alcohol made from a linear alcohol such as an nC ₈ alcohol or an nC ₁₀ alcohol. Moreover, the alkylene average addition mole number m in the general formula (II) is preferably 2 to 5. The phosphate ester which is the component (B) of the present invention is an acid as it is, or a part or all of Na, K,
Those neutralized with NH ₃ , alkyl (C ₁ -C ₄ ) amine, alkanolamine and the like are used. The phosphate ester is preferably a monoester or sesquiester, and most preferably sesquiester.

(A) component in the scouring agent composition of the present invention
The weight ratio with the component (B) is (A) :( B) = 70: 30 to 99: 1, preferably 80:20 to 97: 3.

In the scouring agent composition of the present invention, in addition to the components (A) and (B) described above, if necessary, a preservative, an antifoaming agent, a dialkylsulfosuccinate Na salt, an alkanesulfonate, etc. It goes without saying that other components such as the anionic surfactants of can be added.

Using the fiber scouring agent composition of the present invention, unrefined greige is continuously or batchwise desized, scoured, bleached, and mercerized, and dyed in the subsequent dyeing, finishing and sewing processes. It is possible to obtain fibers free from non-uniformity, abrasion, and abrasion.

The scouring agent composition of the present invention is in liquid form, and is usually in the form of an aqueous solution containing 35 to 80% by weight of water. Further, in the actual steps of desizing, scouring, bleaching and mercerization, it is used according to the stains contained in the cloth so that the effective content is 0.01 to 1% by weight. In any of the steps, In addition, even when using a highly alkaline solution,
The scouring agent composition of the present invention dissolves transparently and has a low foaming property.

The preferred embodiments of the scouring agent composition of the present invention are shown below, but the invention is not limited thereto. -(A) component 14 to 60% by weight, preferably 15 to 50% by weight- (B) component 0.2 to 18% by weight, preferably 1 to 10% by weight (where (A) + (B) = 20 to 65 Wt%] ・ Water balance

[0025]

EXAMPLES Next, the present invention will be described in more detail by way of examples of the present invention, but the present invention is not limited to these examples.

Example 1 (Desizing and scouring of cotton) (I) Various scouring agent compositions (aqueous solutions having an effective concentration of 30% by weight) were prepared using the compounds or mixtures shown in Tables 1 and 2 and the following method was used. The compatibility and penetrability were evaluated by.
The results are shown in Tables 1 and 2. <Compatibility> A scouring agent composition with effective content in a 5% NaOH solution
Add it to 0.1 wt% and mix evenly, then 80 ℃
It was heated until it was judged whether flocs were formed. ○ No floc formation × Floc formation <Penetration> Float an unrefined raw machine cut into 2 cm × 2 cm in a 5% NaOH solution (effective content 0.1% by weight) of the refining agent composition used in the above compatibility test. The time required for sedimentation was obtained for 5 sheets and evaluated by the averaged value. The measurement was performed at 80 ° C.

(II) The refining performance was evaluated using the refining agent compositions shown in Tables 1 and 2. Plain weaving machine for cotton (Broad 40 single yarn, 120 warps / inch, 60 wefts / inch)
Was subjected to desizing and scouring under the following conditions. The results are shown in Tables 1 and 2. <Conditions> Oxidizing desizing agent Na ₂ S ₂ O ₈ powder 5 g / liter caustic soda 48 ° Be 100 g / liter Refining agent composition Effective ingredient 1 g / liter 12 g of cloth is made into a hollow cylinder and a carapet machine 12 type machine (Nissen) (Manufactured by K.K.) at a bath ratio of 1:20 at 100 ° C
Desizing was performed for 30 minutes, scouring was performed, and bubbling of the scouring residue and rewetting property of the scoured cloth were evaluated by the following methods. <Bubbling> Perform degreasing, scouring, washing, etc. at 95 to 100 ° C. Bubble the liquid surface around 80 ° C after washing and rinse at 60 ° C.
Was determined while stirring. H: Foaming on the entire liquid surface M: Foaming on half of the liquid surface L: Slight foaming on the liquid surface NF: No foaming 3cc dripping, the size of the spread is sufficiently large,
It was evaluated based on the judgment criteria that it is good that there is no unevenness in the background. ⊚: Good ∘: Intermediate Δ: Poor ×: No wetting

In the table, EO is ethylene oxide, PO is propylene oxide, the attached numbers mean the average number of moles added, () means block addition, and [] means random addition. Further, the ratio of the mixture in the table is the weight ratio of the compounds in the upper row: lower row or the upper row: middle row: lower row.

[0029]

[Table 1]

[0030]

[Table 2]

[Procedure amendment]

[Submission date] July 8, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0015

[Correction method] Change

[Correction contents]

As a refining agent used for de-sizing, scouring and bleaching a textile product after knitting or weaving, a combination of the above-mentioned component (A) and a general anionic activator such as sulfonate, sulfate, phosphate or ether carboxylate, It is already known that a scouring agent having excellent penetrating and cleaning properties can be obtained, but such scouring agents do not become compatible with each other because they become cloudy or form flocs in a highly alkaline aqueous solution.
There is a risk that it will lead to uneven kneading , and there is also the drawback that the bubbles are high during rinsing. However, the present inventors described above (A)
It is possible to obtain a scouring agent composition having excellent penetrability and scouring property only by combining the component (B), which is a phosphate having a specific alkyl group structure, with the solubilization without forming flocs even under high alkali. did it.

Claims (3)

[Claims] 1. (A) R ₁ O (AO) _n H (I) (wherein R ₁ is the number of carbon atoms) alone or in combination of two or more nonionic surfactants represented by the following general formula (I): AO is a linear or branched alkyl group having 8 to 18 carbon atoms, a linear or branched alkenyl group having 8 to 18 carbon atoms, an alkylaryl group having 8 to 22 carbon atoms, or an aralkyl group having 8 to 22 carbon atoms. An oxyalkylene group having 2 to 3 carbon atoms, n is a number of 3 to 30.) (B) A phosphoric acid ester of a polyalkoxyalkyl ether represented by the following general formula (II) and / or a salt thereof R ₂ O (AO) _m H (II) (In the formula, R ₂ is a secondary alcohol residue having 8 to 18 carbon atoms or a Guerbet alcohol residue having 12 to 24 carbon atoms, and AO is 2 carbon atoms.
-3 is an oxyalkylene group, and m is a number of 1-10. ) And a scouring agent composition for fibers, which comprises: 2. The weight ratio of the component (A) to the component (B) is (A):
(B) = 70: 30-99: 1 The scouring agent composition for fibers according to claim 1. 3. The scouring agent composition for fibers according to claim 1, wherein the component (B) is a sesquiphosphoric acid ester of a polyalkoxyalkyl ether represented by the general formula (II) and / or a salt thereof.