JP2008045266A - Fiber scouring agent composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a scouring agent composition satisfying requests such as alkaliproof performance, low temperature stability, permeability, and scouring performance. <P>SOLUTION: The composition comprises (A) a phosphoric ester derived from a nonionic surfactant represented by general formula (1) and represented by general formula (2), and/or salt thereof, (B) a polyoxyalkyl ether nonionic agent represented by general formula (3), and (C) a 8-22C (un)saturated fatty acid. R<SP>3</SP>-O-[(PO)p-(EO)q]-H (3). äIn formula (1) and (2), R<SP>1</SP>is n-pentyl; R<SP>2</SP>is n-propyl; PO is oxypropylene; EO is oxyethylene; m and n are numbers of m=0-2 and n=1-8; addition form of PO and EO is random addition, block addition or mixed addition thereof; and X in formula (2) is OH or R-O-[(PO)<SB>m</SB>-(EO)<SB>n</SB>]}. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a fiber scouring agent composition, and more specifically, to enhance the effects of post-processes such as bleaching, dyeing and finishing of natural fibers such as raw cotton and synthetic fibers such as polyester and blended fiber products thereof. The present invention relates to a scouring agent composition used in a “scouring” process carried out to remove primary impurities derived from natural fibers, sizing agents used in the weaving stage of synthetic fibers, secondary impurities such as glues, etc. .

  Primary contaminants such as cotton wax and protein adhere to natural fibers such as raw cotton, and secondary contaminants such as sizing oils and glues used during weaving are used on the raw machinery of synthetic fibers such as polyester fibers. Is attached. If these impurities are not sufficiently removed in the “scouring” step, troubles occur in the subsequent bleaching, dyeing and finishing steps, resulting in a great disadvantage. In recent years when the processing process has been simplified and speeded up, there is an increasing demand for a scouring agent that is more functional and easy to use, and that is highly biodegradable due to recent environmental problems.

  Against this backdrop, imports of cheap overseas raw machinery have increased recently, and oil agents and pastes with unknown composition have been used instead of raw machinery, oil agents and pastes with a clear composition that have been on the Japanese market. The number of overseas and difficult scouring machines is increasing, and the conventional scouring agents and scouring conditions cannot cope with them. In particular, in the scouring process of textile products such as cotton fabrics that are carried out under high temperature and high alkali conditions, there are many cases in which high concentration stock tanks are adopted from the viewpoint of hardware such as the recent simplification of on-site processes and automatic supply systems. As a result, the alkali concentration is set to a very high value of 70 to 100 g / L, and the conventional nonionic active agent-based scouring agent causes separation in an alkaline bath, causing a problem that the performance does not appear. In addition, there is an increasing demand for highly functional drugs that can penetrate fibers more quickly even under high alkaline conditions due to higher machine speeds, and have lower foaming properties and excellent scouring properties.

  Conventional scouring agents achieve a certain level of alkali resistance by mixing anionic components such as anionic activators and phosphoric acid esters or sulfonic acid esters of POE. A scouring agent composition that satisfies all of the low-temperature stability, permeability, and scouring performance while possessing it has not yet been obtained (Patent Documents 1 to 4).

On the other hand, there is a demand that the scouring agent composition does not use nonylphenol-free corresponding to environmental problems and does not use PRTR law applicable substances.
Japanese Patent Laid-Open No. 6-200471 JP-A-9-324364 Japanese Patent Application No. 2915391 Japanese Patent No. 3305678

  The present invention has been made in view of the above, and provides a fiber scouring agent composition that satisfies all requirements for low temperature stability, permeability, scouring performance, etc. while having a higher concentration of alkali resistance than conventional ones. For the purpose.

In order to solve the above problems, the fiber scouring agent composition of the present invention
(A) It is represented by the following general formula (1), derived from a nonionic surfactant having a polydispersity (Mw / Mn) of 1.01 to 1.20, and represented by the following general formula (2). Phosphate esters and / or salts thereof,
(B) a polyoxyalkylene alkyl ether type nonionic active agent represented by the following general formula (3), and (C) a saturated or unsaturated fatty acid having 8 to 22 carbon atoms and / or a salt thereof. Shall be.

In the formulas (1) and (2), R ¹ represents an n-pentyl group, R ² represents an n-propyl group, PO represents an oxypropylene group, EO represents an oxyethylene group, and m and n are m = 0. -2, the number of n = 1-8 is shown. The addition form of PO and EO is random addition, block addition, or a mixed addition thereof. Moreover, X in Formula (2) shows OH or R-O-[(PO) m- (EO) n].

^{R 3 -O - [(PO)} p- (EO) q] -H ... (3)
In the formula (3), R ³ represents a linear or branched alcohol residue having 8 to 20 carbon atoms, PO represents an oxypropylene group, EO represents an oxyethylene group, and p and q represent p = 0 to 0. 2, q = 1 to 8 is shown. The addition form of PO and EO is random addition, block addition, or a mixed addition thereof. However, C12-15 ethoxylates regulated by the PRTR method are excluded.

  By containing the component (A), the scouring agent composition of the present invention exhibits stable and remarkable penetrating power and scourability even under higher alkaline conditions than conventional scouring agents.

  Moreover, by using the component (B), the permeability and the rewetting property of the scouring cloth are remarkably improved as compared with the conventional one, and the scouring property is also improved accordingly. In addition, since the biodegradability is high, it is possible to provide a scouring agent that is less burdened on the environment of waste water and can be treated with peace of mind by the user.

  Furthermore, by blending the component (C), it is possible to reduce the foam and improve the alkali resistance.

As described above, the component (A) used in the present invention is a phosphate ester represented by the general formula (2) and / or a salt thereof, and R ¹ and R ² in the general formula (1) are R ^1. Is an n-pentyl group, R ² is an n-propyl group, and is obtained from a nonionic surfactant having a polydispersity (Mw / Mn) of 1.01-1.20.

  This nonionic surfactant is obtained by using 2-propyl-1-heptanol as a raw material alcohol.

  By containing such a component (A), a conventionally used anion having a polydispersity (Mw / Mn) of 1.25 and a similar structure (branched isodecyl residue having 10 carbon atoms) is used. Compared to ingredients, the alkali resistance of scouring agents is dramatically improved. Accordingly, excellent scouring properties and alkali penetration resistance can be expressed in parallel without causing product separation under high alkali, and the object of the present invention can be achieved.

  As the phosphate ester salt, sodium salt, potassium salt, amine salt and the like can be used, and triethanolamine salt is particularly preferable from the viewpoints of high product concentration and low temperature stability (good flow).

  The component (B) is a polyoxyalkylene alkyl ether type nonionic surfactant represented by the general formula (3) as described above, and has a polydispersity (Mw / Mn) of 1.01 to 1.20. A linear or branched polyoxyalkylene alkyl ether type nonionic activator is preferred. When the polydispersity (Mw / Mn) is less than 1.01, the scouring effect including degreasing power tends to be reduced, and the penetration force and rewetability required to be 1.21 or more are exhibited. It tends to be difficult.

  As the component (B), a C10 branched nonionic surfactant using 2-propyl-1-heptanol as a raw material alcohol is preferable. By blending one or more types of nonionic surfactants, mainly C10 branched nonionic surfactants, in addition, a wide range of C8-20 nonionic surfactants can be blended in a wide range. Various performances can be imparted without degrading easy solubility in water, compatibility with other components, solubilization, and the like, while ensuring the performance of scouring in general, such as property and rewetting.

  However, because of the recent environmental hormone problem, C9 nonylphenol ethoxylate was shunned, and the recently enacted chemical substance emission grasp management promotion law (PRTR law) has caused an obligation to report C12-15 ethoxylate emissions. Nonionic surfactants having such a structure are not used in the present invention.

  Furthermore, a component (C) is a C8-22 saturated fatty acid and unsaturated or its salt. The salt is a sodium salt, potassium salt, amine salt or the like, and is not particularly limited, but an amine salt is preferable.

  Component (C) contributes to the defoaming of bubbles derived from components (A) and (B), and by using this, it is possible to improve the low bubble performance.

  The mixing ratio of the components (A) to (C) is such that the weight ratio of the anionic active agent of the component (A) and the nonionic active agent of the component (B) is (A) / (B) = 1/9 to 3 The weight ratio of the component (A) to the component (C) is preferably / 7, and the component (A) is preferably 8 parts or more and less than 10 parts in a total amount of 10 parts of both.

  In the composition of the present invention, when it is necessary to further reduce the foam, an antifoaming agent can be contained as the component (D).

  In this case, as component (D), a silicon alcohol that does not adversely affect compatibility, such as higher alcohol antifoaming agents such as 2-ethylhexanol, oleyl alcohol, isostearyl alcohol, and glycol ether self-emulsifying silicon. What is necessary is just to mix | blend a foaming agent.

  In addition, isopropyl alcohol, methanol, butyl cellosolve, or the like can be added as a solvent in order to maintain product stability at a low temperature more stably and to increase the concentration.

  In the present invention, the scouring agent composition contains 5 to 25% by weight, preferably 10 to 25% by weight, more preferably 15 to 20% by weight of the component (A) as the weight% of the active ingredient (solid content). B) is 30 to 70% by weight, preferably 40 to 60% by weight, component (C) is 10% by weight or less, preferably 5 to 8% by weight, and component (D) is 0 to 10% by weight, preferably 2 to 2%. Mix 10% by weight.

  The total amount of components (A), (B), (C) and (D) is preferably 50 to 95% by weight, more preferably 55 to 90% by weight, and the balance 10 to 45% by weight usually uses water.

  The raw machine scoured with the scouring agent composition at these blending ratios has high whiteness, and can undergo subsequent bleaching, dyeing, and finishing processes without any trouble, resulting in a very high quality finish.

  The scouring agent composition of the present invention may contain other additives such as a chelating agent such as EDTA4Na (EDTA: ethylenediaminetetraacetic acid) within the range not impairing the object of the present invention.

  Examples of the present invention will be described below, but the present invention is not limited to the following examples.

1. Cotton fabrics, polyester / cotton blended fabrics (hereinafter referred to as T / C fabrics), and polyester fabric scouring performance tests (residual fat ratio, rewetting)
A scouring performance test (evaluation of residual oil rate and rewetability) was performed on cotton fabric, T / C fabric, and polyester fabric as follows. The composition of the scouring agent composition is shown in Tables 1 and 2. In addition, the polydispersity in a table | surface shows the polydispersity of a nonionic surfactant.

[Test cloth] (a) 100% cotton fabric [processing conditions]
Scouring agent (active ingredient) 1.5g / L
NaOH (solid) 20.0 g / L
Saisol (registered trademark, the same shall apply hereinafter) LM (Daiichi Kogyo Seiyaku Co., Ltd. chelating agent) 0.5 g / L
Oxidizing paste remover 8.0g / L
* Model Mini color (Texam Giken Co., Ltd.)
* Bath ratio 1:20
* Temperature / Time 95 ° C x 30 minutes → Washing 2 minutes → Washing x 1 minute → Dry (After treating at 95 ° C for 30 minutes, wash with hot water at about 50 ° C for 2 minutes, then wash with room temperature water for 1 minute (The same applies to the following except that the time is different.)

[Test cloth] (b) T / C (70/30) woven fabric machine [Treatment conditions]
Scouring agent (active ingredient) 1.0 g / L
NaOH (solid) 10.0 g / L
Saisol LM (Daiichi Kogyo Seiyaku Co., Ltd. chelating agent) 0.5g / L
Oxidizing paste remover 4.0g / L
* Model Mini color (Texam Giken Co., Ltd.)
* Bath ratio 1:20
* Temperature / Time 90 ° C x 30 minutes → Washing (50 ° C) 2 minutes → Washing x 1 minute → Dry

[Test cloth] (c) 100% polyester fabric raw material [Treatment conditions]
Scouring agent (active ingredient) 1.0 g / L
NaOH (solid) 1.0 g / L
Saisol FX-20 (Daiichi Kogyo Seiyaku Co., Ltd. chelating agent) 0.5g / L
* Model Mini color (Texam Giken Co., Ltd.)
* Bath ratio 1:10
* Temperature / Time 90 ℃ × 10min → Wash (50 ℃) 2min → Wash × 1min → Dry

[Test cloth] (d) Nylon fabric raw machine [Processing conditions]
Scouring agent (active ingredient) 1.0 g / L
NaOH (solid) 1.0 g / L
Saisol FX-20 (Daiichi Kogyo Seiyaku Co., Ltd. chelating agent) 0.5g / L
* Model Mini color (Texam Giken Co., Ltd.)
* Bath ratio 1:10
* Temperature time 90 ℃ × 10min → Washing (50 ℃) 2min → Washing × 1min → Drying

About the treatment cloth obtained by said each process, the residual-fat rate and rewetting property were investigated with the following method. The results are shown in Table 3.
Residual fat ratio (%): calculated from the weight of the dough before and after Soxhlet extraction treatment (solvent: diethyl ether) by the following formula;

  Rewetting property (cm): Dye water was immersed in a test cloth having a width of 4 cm × 12 cm for 5 minutes, and evaluation was performed by a sucking method in which the sucked length was measured. This evaluation was carried out only for (a) cotton and (b) T / C fabric.

2. Alkali permeation resistance Using the scouring agent compositions of Examples 1, 2, 3, and 5 and Comparative Examples 1 to 4, the treated cloth treated with the following bath composition was subjected to alkali resistance and alkali permeation by the following evaluation methods. Examined. The results are shown in Table 4.

[Bath composition]
Scouring agent (active ingredient) 1.5g / L
NaOH (solid) Xg / L
Saisol LM 0.5g / L (Daiichi Kogyo Seiyaku Co., Ltd. chelating agent)
Lactogen LS 15.0g / L (Oxidizing paste remover manufactured by Nitto Kasei Co., Ltd.)
[Evaluation methods]
* Alkali resistance: Solutions of NaOH from 60 g / L to 100 g / L were prepared, and the presence or absence of separation of the scouring agent was confirmed. The evaluation was visually evaluated by ○ to × (○: no separation, x: with separation) after standing at room temperature for 5 hours.

* Alkali permeability: at a concentration of NaOH (solid) = 60 g / L, by a cotton canvas disc method (a 2 cm square cotton canvas was floated in a measurement bath and the permeation time and immersion time were measured). The “penetration time” indicates the time until the canvas is stained, and the “settling time” indicates the time when the canvas starts to sink to the bottom of the beaker.

3. Foaming and defoaming tests Using the scouring agent compositions of Examples 1 and 2 and Comparative Examples 2 and 4, treated cloths treated with the following bath composition were foamed and defoamed by the following evaluation methods. I investigated. The results are shown in Table 5.

[Bath composition]
Scouring agent (active ingredient) 1.5g / L
NaOH (solid) 60.0 g / L
Saisol LM (Daiichi Kogyo Seiyaku Co., Ltd. chelating agent) 0.5g / L
Lactogen LS (Oxidizing agent remover manufactured by Nitto Kasei Co., Ltd.) 15.0 g / L
* Measurement bath 200cc
[Measuring method]
Based on JIS-2518 (air introduction method), the following method evaluated.
* Foaming property: 200 ml of a test bath was placed in a 1 liter graduated cylinder, air was introduced at 1000 ml / 10 seconds with an air introduction pump, and the time until the foam reached the scale of 1 liter was measured.

* Defoaming property: After the foam reached the scale of 1 liter, the introduction of air was stopped, and the remaining amount of foam was measured every 30 seconds.

4). Low temperature stability A scouring agent composition was prepared, and the state of the product was visually confirmed at room temperature and low temperature (-5 ° C. constant temperature bath: after standing for 24 hours), ○ to × (○: fluidity, viscosity of about 800 mPa)・ S or less, x: no fluidity, viscosity of about 1000 mPa · s or more). The results are shown in Table 6.

5. Biodegradability evaluation Based on the Chemical Substances Control Law Degradability Test, a biodegradability test was conducted by the BOD method. In general, it is judged that the biodegradation rate is 60% or more, but in this test, the biodegradation rate is 80% or more, ◎, 70-79% ○, 60-69%. Those with Δ and those with 59% or less were marked with ×. The results are shown in Table 7.

  As can be seen from the above results, the scouring agent composition of the present invention contains component (A), so that the conventional scouring agent caused separation around NaOH 60 g / L, whereas NaOH 80 to 100 g / L. Even if the concentration is increased to L, separation does not occur, it is stable even under highly alkaline conditions, and it exhibits remarkable penetrating power and scouring properties.

  Further, by using the component (B), the penetrability of the canvas raw machine and the rewetability of the scouring cloth in the cotton canvas method are much improved than before, and the scouring property is improved accordingly. This is apparent from the rewetability of the dough after scouring. The residual fat rate was also lower than before and the degreasing power was improved. In addition, because it is composed of nonionic surfactants that do not contain C9 nonylphenol ethoxylate and C12-15 ethoxylate, which is a chemical substance emission control management promotion method (PRTR method), Because it is more degradable, there is less load on the waste water and the user can handle it with peace of mind.

  Moreover, a foam reduction and the improvement of alkali-proof performance can be aimed at by mix | blending a component (C).

  In addition, by blending the component (D) glycols, the viscosity can be reduced despite the high concentration, and the component (C) has insufficient defoaming performance, higher alcohol type, self-emulsifying silicone type By containing an antifoaming agent such as, it is possible to impart low foaming performance.

  Since the scouring agent composition of the present invention has good product stability at a high alkali concentration, the stability of the scouring agent is considered under all conditions such as high alkali conditions such as scouring raw cotton, polyester, and other blended spinning machines. It becomes possible to refine without doing. In addition, it has the advantage that it can be stored and automatically supplied in a high concentration alkali stock tank, and it can quickly penetrate into dough flowing at high speed to obtain a high scouring effect. Furthermore, it is a biodegradable, nonylphenol-free, PRTR non-corresponding substance, so it is an environmentally friendly scouring agent that complies with laws and regulations and has the advantage of not polluting rivers.

Claims (1)

(A) It is represented by the following general formula (1), derived from a nonionic surfactant having a polydispersity (Mw / Mn) of 1.01 to 1.20, and represented by the following general formula (2). Phosphate esters and / or salts thereof,
(B) a polyoxyalkylene alkyl ether type nonionic active agent represented by the following general formula (3), and (C) a saturated or unsaturated fatty acid having 8 to 22 carbon atoms and / or a salt thereof. A fiber scouring agent composition characterized by comprising:

(In the formulas (1) and (2), R ¹ represents an n-pentyl group, R ² represents an n-propyl group, PO represents an oxypropylene group, EO represents an oxyethylene group, and m and n are m = n = 0 to 2 and n = 1 to 8. The addition form of PO and EO is random addition, block addition, or mixed addition thereof, and X in Formula (2) is OH or R—O. -Indicates [(PO) m- (EO) n].)
^{R 3 -O - [(PO)} p- (EO) q] -H ... (3)
(In Formula (3), R ³ represents a linear or branched alcohol residue having 8 to 20 carbon atoms, PO represents an oxypropylene group, EO represents an oxyethylene group, and p and q represent p = 0. -2, q = 1 to 8. The addition form of PO and EO is random addition, block addition, or mixed addition of these, except for C12-15 ethoxylates regulated by the PRTR method. )