KR20210056993A - Liquid cleaners for textile products and liquid cleaners in containers - Google Patents

Abstract

The liquid detergent for textile products of the present invention is polyoxyalkylene alkyl ether sulfuric acid or a salt thereof, at least one selected from the group consisting of AOS, AS, LAS, IOS, HAS and SAS, and sugar alcohol (B) And, when the component (A) is composed of only LAS, the content of LAS is more than 15% by mass with respect to the total mass of the liquid detergent for textile products, and the content of the component (B) is the liquid detergent for textile products. It is 3-20 mass% with respect to the total mass of, and the content of the compound (C) represented by the following general formula (c-1) is less than 5 mass% with respect to the total mass of the liquid detergent for textile products, and citric acid (D ) Content is less than 10% by mass relative to the total mass of the liquid detergent for textile products, and the total mass of surfactant (excluding soap) is 30% by mass or less with respect to the total mass of the liquid detergent for textile products. , The mass ratio represented by the (A) component / the (B) component is 0.2 to 5. In the liquid detergent product contained in the container of the present invention, the liquid detergent for textile products is contained in a squeeze container. R ² -O-[(EO) _s /(PO) _t ]-R ³ ··· (c-1)

Description

Liquid cleaners for textile products and liquid cleaners in containers

The present invention relates to a liquid detergent for textile products and a liquid detergent product contained in a container.

This application claims priority based on Japanese Patent Application No. 2018-168016 for which it applied to Japan on September 7, 2018, and uses the content here.

Since the liquid detergent can be applied directly to the dirt adhered to textile products such as clothing, it is easy to exert an effect in removing partial sebum contamination or oil contamination that is difficult to fall off.

In Patent Document 1, a liquid detergent containing a specific nonionic surfactant (polyoxyethylene alkyl ether having an average added mole number of oxyethylene groups of 5 to 8) was applied to the darkened contamination by sebum, and allowed to stand for 5 minutes. An example of laundering with a washing liquid containing a powder detergent is described later.

Patent Document 2 describes an example in which a liquid detergent containing a specific nonionic surfactant (polyoxyethylene alkyl ether having an average added mole of oxyethylene group of 2 to 50) was applied to contamination by black tea and then washed with water. Has been.

Japanese Patent Laid-Open No. 2005-132898 Japanese Patent Laid-Open No. 2009-263464

However, the methods of Patent Documents 1 and 2 are not necessarily sufficient, and thus further improvement of cleaning power is required.

Therefore, the inventors of the present invention have found that, in anticipation of an improvement in cleaning power, as a result of lengthening the waiting time until washing after applying the liquid detergent of Patent Document 1 to a contaminated part, the contaminated part will become wider than before washing. Therefore, in the conventional liquid detergent, it is necessary to wash immediately after application to the contaminated part.

In addition, the liquid detergent is required to have stability (liquid stability) capable of maintaining a liquid state.

The present invention is a liquid detergent for textile products with good liquid stability, excellent cleaning power, and excellent effect of suppressing the spread of contamination when left after being applied to an object to be cleaned (prevention of diffusion of contamination) and contained in a container. It is intended to provide liquid detergent products.

The present invention has the following aspects.

[1] the following (A) component,

As a liquid detergent for textile products containing the following (B) component,

When the component (A) consists of only the following LAS, the content of LAS is more than 15% by mass relative to the total mass of the liquid detergent for textile products,

The content of the component (B) is 3 to 20% by mass with respect to the total mass of the liquid detergent for textile products,

The content of the following (C) component is less than 5% by mass relative to the total mass of the liquid detergent for textile products,

The content of the following (D) component is less than 10% by mass with respect to the total mass of the liquid detergent for textile products,

The total mass of the surfactant (excluding soap) is 30% by mass or less with respect to the total mass of the liquid detergent for textile products,

The liquid detergent for a textile product in which the mass ratio represented by the said (A) component/the said (B) component is 0.2-5.

(A) component: polyoxyalkylene alkyl ether sulfuric acid or its salt, α-olefin sulfonic acid or its salt (AOS), alkyl sulfuric acid ester or its salt (AS), linear alkylbenzene sulfonic acid or its salt (LAS), internal olefin At least one member selected from the group consisting of sulfonic acid or its salt olefin (IOS) and hydroxy (HAS) and alkanesulfonic acid or its salt (SAS).

(B) Component: sugar alcohol.

(C) component: A compound represented by the following general formula (c-1).

(D) Component: citric acid.

R ² -O-[(EO) _s /(PO) _t ]-R ³ ···(c-1)

In formula (c-1), R ² is a C6-C22 hydrocarbon group, R ³ is a hydrogen atom, an alkyl group or an alkenyl group, EO is an oxyethylene group, PO is an oxypropylene group, and s is an EO It represents the average repetition number, is the number of 3-15, t represents the average repetition number of PO, and is the number of 0-6.

[2] The liquid detergent for textile products wherein the component (A) is polyoxyalkylene alkyl ether sulfuric acid or a salt thereof, and the mass ratio represented by the component (A)/component (B) is 0.2 to 5.

[3] The liquid detergent for textile products according to [1] or [2], wherein the component (B) is at least one of glycerin and sorbitol.

[4] The liquid detergent for textile products according to any one of [1] to [3], further comprising the following (E) component.

(E) Ingredient: Soap.

[5] The liquid detergent for textile products according to [4], wherein the content of the component (E) is 0.1 to 3.0% by mass based on the total mass of the liquid detergent for textile products.

[6] The liquid detergent for textile products according to [5], wherein the content of the component (E) is 0.5 to 1.5% by mass based on the total mass of the liquid detergent for textile products.

[7] The liquid detergent for textile products according to any one of [1] to [6], wherein the content of the component (A) is 4% by mass or more with respect to the total mass of the liquid detergent for textile products.

[8] The liquid detergent for textile products according to [7], wherein the content of the component (A) is 7 to 25% by mass with respect to the total mass of the liquid detergent for textile products.

[9] The liquid detergent for textile products according to [8], wherein the content of the component (A) is 10 to 20% by mass based on the total mass of the liquid detergent for textile products.

[10] The liquid detergent for textile products according to any one of [1] to [9], wherein the mass ratio represented by the component (A) / the component (B) is 0.5 to 3.

[11] The liquid detergent for textile products according to [10], wherein the mass ratio represented by the component (A)/component (B) is 0.8 to 2.

[12] The liquid detergent for textile products according to any one of [1] to [11], wherein the mass ratio represented by the total surfactant/component (C) is 5 or more.

[13] The liquid detergent for textile products according to [12], wherein the mass ratio represented by the total surfactant/component (C) is 15 or more.

[14] The liquid detergent for textile products according to any one of [1] to [13], wherein the component (A) is a compound represented by the following general formula (a-1).

R ¹ -O-[(EO) _k /(PO) _n ]-SO ₃ ^- M ⁺ ···(a-1)

In formula (a-1), R ¹ is a linear or branched alkyl group having 8 to 20 carbon atoms, EO is an oxyethylene group, PO is an oxypropylene group, k represents the average repeat number of EO, and 0 It is the above number, n represents the average repetition number of PO, is the number of 0-6, and M ⁺ is a counter cation.

^{[15] The liquid detergent for textile products according to [14], wherein R 1} in the formula (a-1) is a straight-chain alkyl group having 12 and 14 carbon atoms, k is 1, n is 0, and M is sodium.

[16] The liquid detergent for textile products according to any one of [1] to [15], wherein the content of the component (C) is 1% by mass or less with respect to the total mass of the liquid detergent for textile products.

[17] The liquid detergent for textile products according to [16], which does not contain the component (C).

[18] The liquid detergent for textile products according to any one of [1] to [17], wherein the content of the component (D) is 5% by mass or less with respect to the total mass of the liquid detergent for textile products.

[19] The liquid detergent for textile products according to [18], wherein the content of the component (D) is 1% by mass or less with respect to the total mass of the liquid detergent for textile products.

[20] The liquid detergent for textile products according to [19], which does not contain the component (D).

[21] The liquid detergent for textile products according to any one of [1] to [20], wherein the total mass of the surfactant is 5 to 25% by mass with respect to the total mass of the liquid detergent for textile products.

[22] Any of [1] to [21], wherein the content of the surfactant (other surfactant) other than the component (A) and the component (C) is 10% by mass or less with respect to the total mass of the liquid detergent for textile products. Liquid detergent for textile products as described in one.

[23] The liquid detergent for textile products according to [22], wherein the content of the other surfactant is 1% by mass or less with respect to the total mass of the liquid detergent for textile products.

[24] The liquid detergent for textile products according to [23], which does not contain the other surfactant.

[25] The liquid detergent for textile products according to any one of [1] to [24], comprising 50 to 85% by mass of water based on the total mass of the liquid detergent for textile products.

[26] The liquid detergent for textile products according to any one of [1] to [25], used by spraying on textile products.

[27] A liquid detergent product in which the liquid detergent for textile products according to any one of [1] to [26] is contained in a container housed in a squeeze container.

[28] Fibers subjected to cleaning treatment by applying the liquid detergent for textile products according to any one of [1] to [26] to a textile product, leaving it for 30 minutes or more, and then contacting it with water or a cleaning solution containing a fresh detergent. How to wash the product.

[29] The method for washing a textile product according to [28], wherein the liquid detergent for textile products is sprayed on the textile product, and the liquid detergent for textile products is applied to the textile product.

[30] The method for washing a textile product according to [29], in which the liquid detergent for textile products contained in a squeeze container is sprayed onto the textile product in a shower shape.

According to the present invention, a liquid detergent for textile products and a liquid detergent product contained in a container are provided with good liquid stability, excellent cleaning power, and excellent effect of suppressing the spread of contamination when left after being applied to an object to be cleaned. can do.

Hereinafter, the present invention will be described in detail.

In addition, in the present specification, the textile product to be washed is also referred to as "the object to be cleaned".

"Liquid cleaner"

The liquid detergent for textile products of the present invention (hereinafter, also referred to simply as "liquid detergent (α)") is a composition containing the components (A) and (B) shown below. The liquid detergent (?) is optional, and may further contain one or more of the (C) component, (D) component, (E) component, and water shown below.

<(A) component>

(A) component is polyoxyalkylene alkyl ether sulfuric acid or its salt, α-olefin sulfonic acid or its salt (AOS), alkyl sulfuric acid ester or its salt (AS), straight-chain alkylbenzene sulfonic acid or its salt (LAS), internal olefin It is at least one selected from the group consisting of sulfonic acid or its salt olefin (IOS) and hydroxy (HAS) and alkanesulfonic acid or its salt (SAS).

Among these, as (A) component, polyoxyalkylene alkyl ether sulfuric acid or its salt is preferable.

Examples of the polyoxyalkylene alkyl ether sulfate include compounds represented by the following general formula (a-1) (hereinafter referred to as "compound (a-1)").

R ¹ -O-[(EO) _k /(PO) _n ]-SO ₃ ^- M ⁺ ···(a-1)

In formula (a-1), R ¹ is a linear or branched alkyl group having 8 to 20 carbon atoms, EO is an oxyethylene group, PO is an oxypropylene group, k represents the average repeat number of EO, and 0 It is the above number, n represents the average repetition number of PO, is the number of 0-6, and M ⁺ is a counter cation.

It is preferable that the content of the component (a0) in which k=0 and n=0 in the formula (a-1) is 35 to 55 mass% with respect to the total mass of the component (A).

R ¹ is preferably a C10-20 linear or branched alkyl group, and more preferably a C12-14 linear or branched alkyl group.

As for k, 0-5 are preferable, 0.1-2 are more preferable, 0.5-2 are still more preferable, and 0.5-1.5 are especially preferable.

0-3 are preferable and, as for n, 0 is more preferable.

As for k+n, the number more than 0 is preferable, and 1-5 are more preferable.

When k and n are each non-zero, that is, when compound (a-1) has both EO and PO, in [(EO) _k /(PO) _n ], EO and PO are added in a block shape It may be present or may be added in a random shape. As a method of adding EO and PO in a block shape, for example, a method of introducing propylene oxide after introducing ethylene oxide, and a method of introducing ethylene oxide after introducing propylene oxide are exemplified. The distribution of the added mole number of ethylene oxide and propylene oxide is not particularly limited.

Examples of the salt of the polyoxyalkylene alkyl ether sulfuric acid include alkali metal salts such as sodium and potassium, alkaline earth metal salts such as magnesium, and alkanolamine salts such as monoethanolamine and diethanolamine.

The number of carbon atoms of AOS is preferably 8 to 24.

As for the carbon number of AS, 8-20 are preferable.

It is preferable that LAS has an alkyl group having 8 to 18 carbon atoms.

The number of carbon atoms of IOS and HAS is preferably 8 to 24, respectively.

The number of carbon atoms of SAS is preferably 8-20.

Salts of α-olefinsulfonic acid, salts of alkyl sulfates, salts of straight chain alkylbenzenesulfonic acids, salts of internal olefinsulfonic acids, and salts of alkanesulfonic acids include alkali metal salts such as sodium and potassium, alkaline earth metal salts such as magnesium, monoethanolamine And alkanolamine salts such as diethanolamine and the like.

As the component (A), a commercial item may be used or may be produced by a known synthesis method. When (A) component is produced by a known synthesis method, (A) component can be produced by a method of reacting polyoxyalkylene alkyl ether with sulfuric anhydride or a method of reacting chlorosulfonic acid.

The component (A) contained in the liquid detergent (?) may be one or two or more.

With respect to the total mass of the liquid detergent (α), the content of the component (A) is preferably 4% by mass or more, more preferably 5% by mass or more, even more preferably 7% by mass or more, and particularly 10% by mass or more. desirable. In addition, with respect to the total mass of the liquid detergent (α), the content of the component (A) is preferably 25% by mass or less, more preferably 20% by mass or less, and still more preferably 17% by mass or less. With respect to the total mass of the liquid detergent (α), the content of the component (A) is preferably 4 to 25% by mass, more preferably 5 to 25% by mass, still more preferably 7 to 25% by mass, and 10 to 20 Mass% is particularly preferred, and 10-17 mass% is most preferred. When the content of the component (A) is more than the lower limit of the above range, the diffusion preventing property of contamination (particularly, the diffusion preventing property of contamination with oil contamination) and cleaning power are more excellent. When the content of the component (A) is less than or equal to the upper limit of the above range, the usability and anti-foaming properties during washing are excellent.

However, when the component (A) is composed of only LAS, the content of LAS is more than 15% by mass, preferably 20% by mass or more with respect to the total mass of the liquid detergent (α). With respect to the total mass of the liquid detergent (?), the content of LAS is more than 15% by mass, preferably 25% by mass or less, and more preferably 20 to 25% by mass.

<(B) component>

(B) The component is a sugar alcohol.

"Sugar alcohol" is a polyhydric alcohol made into an alcohol group by reducing the aldehyde group and ketone group of a sugar.

Examples of sugar alcohols include glycerin, diglycerin, polyglycerin, sorbitol, erythritol, xylitol, sorbitol (D-sorbitol), mannitol, maltitol, trehalose, and the like. Among these, glycerin and sorbitol are preferable from the viewpoint of further improving the cleaning power.

The component (B) contained in the liquid detergent (?) may be one or two or more.

The content of the component (B) with respect to the total mass of the liquid detergent (α) is 3% by mass or more, preferably more than 3% by mass, more preferably 4% by mass or more, even more preferably 5% by mass or more, and 7 Mass% or more is particularly preferred. Further, the content of the component (B) with respect to the total mass of the liquid detergent (?) is 20% by mass or less, preferably 17% by mass or less, and more preferably 15% by mass or less. The content of the component (B) with respect to the total mass of the liquid detergent (α) is 3 to 20% by mass, preferably 4 to 20% by mass, more preferably 5 to 20% by mass, and further 7 to 20% by mass. It is preferable, and 7-17 mass% is especially preferable, and 10-15 mass% is most preferable. When the content of the component (B) is greater than or equal to the lower limit of the above range, the cleaning power is further improved, and when it is less than or equal to the upper limit, the diffusion preventing property and usability of contamination are excellent.

The mass ratio (A/B ratio) represented by (A) component / (B) component is 0.2 or more, 0.5 or more are preferable, and 0.75 or more are more preferable. Moreover, the A/B ratio is 5 or less, 3 or less are preferable, and 2 or less are more preferable. The A/B ratio is 0.2-5, 0.5-3 are preferable, and 0.75-2 are more preferable. When the A/B ratio is greater than or equal to the lower limit of the above range, the diffusion preventing property and cleaning power of contamination are excellent, and when it is less than the upper limit, liquid stability is excellent.

In particular, when the component (A) is polyoxyalkylene alkyl ether sulfuric acid or a salt thereof, the A/B ratio is 0.2 or more, preferably 0.5 or more, and more preferably 0.75 or more. Moreover, the A/B ratio is 5 or less, 3 or less are preferable, and 2 or less are more preferable. The A/B ratio is 0.2-5, 0.5-3 are preferable, and 0.75-2 are more preferable. When the A/B ratio is greater than or equal to the lower limit of the above range, the diffusion preventing property and cleaning power of contamination are excellent, and when it is less than the upper limit, liquid stability is excellent.

<(C) component>

The component (C) is a compound represented by the following general formula (c-1) (hereinafter referred to as "compound (c-1)".).

R ² -O-[(EO) _s /(PO) _t ]-R ³ ···(c-1)

In formula (c-1), R ² is a C6-C22 hydrocarbon group, R ³ is a hydrogen atom, an alkyl group or an alkenyl group, EO is an oxyethylene group, PO is an oxypropylene group, and s is an EO It represents the average repetition number, is the number of 3-15, t represents the average repetition number of PO, and is the number of 0-6.

The ^{hydrocarbon group which is R 2} may be saturated or unsaturated. As R ^{2, a} linear or branched alkyl group or alkenyl group is preferable, and an alkyl group is more preferable.

The number of carbon atoms of R ² is preferably 8 to 22, more preferably 10 to 18, and still more preferably 12 to 16.

1-6 are preferable and, as for the carbon number of the alkyl group for R ^{3, 1-3 are more preferable.}

The number of carbon atoms of the alkenyl group in R ³ is preferably 2 to 6, more preferably 2 to 3.

7-15 are preferable and, as for s, 12-15 are more preferable.

0-3 are preferable and, as for t, 0-1 are more preferable.

s+t is a number more than 0, and 5-20 are preferable.

When t is not 0, that is, when compound (c-1) has both EO and PO, in [(EO) _s /(PO) _t ], EO and PO may be added in a block shape, It may be added in a random shape.

It is preferable that the content of the component (C) is small from the viewpoint of suppressing the diffusion of contamination when the liquid detergent (?) is applied to the textile product and left to stand.

Specifically, it is preferable that the content of the component (C) is less than 5% by mass relative to the total mass of the liquid detergent (α).

That is, it is preferable that the liquid detergent (α) does not contain the component (C), or the content of the component (C) relative to the total mass of the liquid detergent (α) is more than 0% by mass and less than 5% by mass.

The content of the component (C) is more preferably 1% by mass or less, more preferably less than 1% by mass, particularly preferably 0.5% by mass or less, and most preferably 0.1% by mass or less.

<Other surfactant>

The liquid detergent (?) may contain one or more other surfactants which do not correspond to any of the (A) component and (C) component.

As other surfactants, anionic surfactants other than component (A) (excluding component (E) (soap) described later), nonionic surfactants other than component (C), cationic surfactant, amphoteric surfactant, amine oxide Seed type surfactants are mentioned. For these liquid detergents, known surfactants can be used. With respect to the total mass of the liquid detergent (?), the content of the other surfactant is preferably 25% by mass or less.

Examples of the nonionic surfactant other than the component (C) include compounds represented by the following general formula (c-2) (hereinafter referred to as "compound (c-2)").

R ⁴ -O-[(EO) _p /(PO) _q ]-(EO) _r -R ⁵ ···(c-2)

In formula (c-2), R ⁴ is a C6-C22 hydrocarbon group, R ⁵ is a hydrogen atom, an alkyl group or an alkenyl group, EO is an oxyethylene group, PO is an oxypropylene group, and p is EO. Represents the average repetition number, q represents the average repetition number of PO, r represents the average repetition number of EO, the sum of p and r is a number of 16 or more, and q is a number of 0-10.

When p and q are not 0, that is, when compound (c-2) has both EO and PO, in [(EO) _p /(PO) _q ], even if EO and PO are added in a block shape It may be added in a random shape.

With respect to the total mass of the liquid detergent (?), the content of the compound (c-2) is preferably 25% by mass or less.

With respect to the total mass of the liquid detergent (α), the total mass of the surfactant (excluding the (E) component (soap) described later) is 30% by mass or less, preferably 4 to 30% by mass, and 5 to 30% by mass % Is more preferable, 5 to 25% by mass is still more preferable, and 5 to 20% by mass is particularly preferable. When the total mass of the surfactant is greater than or equal to the lower limit of the above range, it is excellent in cleaning power and preventing diffusion of contamination. When the total mass of the surfactant is less than or equal to the upper limit of the above range, the usability and anti-foaming properties during washing are excellent. In addition, it is excellent in liquid stability.

In addition, "total mass of surfactant" is the total mass of (A) component, (C) component, and another surfactant.

With respect to the total mass of the liquid detergent (α), the content of the other surfactant is preferably 25% by mass or less, more preferably 10% by mass or less, even more preferably 5% by mass or less, and particularly preferably 1% by mass or less. Do. The content of other surfactants may be zero.

With respect to the total mass of the surfactant, the content of the component (A) is preferably 40% by mass or more, more preferably 50% by mass or more, even more preferably 70% by mass or more, particularly preferably 80% by mass or more, It is most preferably 90% by mass or more, and very preferably 100% by mass. In addition, when the component (A) is polyoxyalkylene alkyl ether sulfuric acid or its salt, the content of polyoxyalkylene alkyl ether sulfuric acid or its salt is preferably 40% by mass or more, and 50% by mass with respect to the total mass of the surfactant. The above is more preferable, 70% by mass or more is still more preferable, 80% by mass or more is particularly preferable, 90% by mass or more is most preferable, and 100% by mass is very preferable.

The mass ratio (total surfactant/C ratio) represented by the total surfactant/(C) component is preferably 5 or more, more preferably 10 or more, and still more preferably 15 or more. If it is more than the lower limit of the above range, the diffusion prevention of contamination is more excellent. Here, the "total surfactant" refers to all surfactants contained in the liquid detergent (α) (excluding the (E) component (soap) described later). The total surfactant/C ratio is preferably 80 or less, more preferably 70 or less, still more preferably 50 or less, and particularly preferably 30 or less.

<(D) component>

(D) The component is citric acid.

As citric acid, any citric acid used in general liquid detergents can be used.

The content of the component (D) is less than 10% by mass with respect to the total mass of the liquid detergent (?). That is, as the liquid detergent (α), a form that does not contain the component (D), or a form in which the content of the component (D) relative to the total mass of the liquid detergent (α) is more than 0% by mass and less than 10% by mass. have.

The content of the component (D) is more preferably 5% by mass or less, still more preferably 3% by mass or less, and particularly preferably 2% by mass or less. When the content of the component (D) is less than or equal to the upper limit of the above range, the liquid stability is excellent.

In addition, when the liquid detergent (α) contains the component (D), the content is preferably 0.1% by mass or more, and more preferably 0.4% by mass or more. When the content of the component (D) is equal to or greater than the lower limit of the above range, the viscosity of the liquid detergent (?) can be easily adjusted so that the viscosity is excellent in usability while maintaining liquid stability.

<(E) component>

(E) The ingredient is soap.

As the soap, any of the soaps used in general liquid detergents can be used, and among them, a higher fatty acid having 10 to 20 carbon atoms and a salt thereof are preferable, and a higher fatty acid having 12 to 18 carbon atoms and a salt thereof are more preferable.

The higher fatty acid constituting the soap may be a saturated fatty acid, an unsaturated fatty acid, or a mixture of a saturated fatty acid and an unsaturated fatty acid. Examples of higher fatty acids include stearic acid, linoleic acid, oleic acid, and palm fatty acids.

Examples of the salts of higher fatty acids include alkali metal salts such as sodium and potassium, alkaline earth metal salts such as magnesium, and alkanolamine salts such as monoethanolamine and diethanolamine.

With respect to the total mass of the liquid detergent (α), the content of the component (E) is preferably 0.1 to 3.0% by mass, more preferably 0.2 to 2.0% by mass, and still more preferably 0.5 to 1.5% by mass. When the content of the component (E) is more than the lower limit of the above range, the foaming prevention property during washing is excellent, and when it is less than the upper limit of the above range, the liquid stability is excellent.

<water>

It is preferable that the liquid detergent (α) contains water.

With respect to the total mass of the liquid detergent (α), the water content is preferably 30% by mass or more, and more preferably 50% by mass or more. When the water content is more than the lower limit of the above range, the usability and prevention of foaming during washing are excellent. In addition, it becomes easy to prepare a liquid detergent (α). In addition, it is excellent in liquid stability. In addition, when applying the liquid detergent (α) to the textile product, it becomes easy to spray the liquid detergent (α) on the textile product.

With respect to the total mass of the liquid detergent (?), the content of water is preferably 90% by mass or less, and more preferably 85% by mass or less.

<Arbitrary Ingredients>

The liquid detergent (α) may contain, as an optional component, a component known in the field of liquid detergent in addition to the components (A) to (E), other surfactants and water.

As an optional component, for example, an organic solvent other than the component (B), an organic acid other than the component (D), an antifoaming agent, a metal ion scavenger (chelating agent), an enzyme, an alkali agent, a pH adjuster, an antioxidant, an antiseptic agent, an antibacterial agent, A touch improving agent, an anti-contamination agent, an anti-recontamination agent, a pearl agent, a soil release agent, a dispersing agent, a hydrotropic agent, a flavoring agent, a coloring agent, an emulsifying agent, a fluorescent agent, an extract, and the like.

Examples of organic solvents other than the component (B) include ethanol, ethylene glycol, propylene glycol, diethylene glycol monobutyl ether (butylcarbitol), polyethylene glycol, 3-methoxy-3-methylbutanol, phenoxyethanol, etc. Can be mentioned.

Organic solvents other than the component (B) contained in the liquid detergent (?) may be one or two or more.

With respect to the total mass of the liquid detergent (α), the content of the organic solvent other than the component (B) is preferably 1 to 30% by mass.

Examples of the antifoaming agent include silicone and propylene oxide adducts of alcohol (excluding nonionic surfactants other than component (C) and component (C)), fatty acid esters, and the like.

Examples of the silicone include silicones such as dimethyl silicone, polyether-modified silicone, and amino-modified silicone. With respect to the total mass of the liquid detergent (?), the content of silicon is preferably 0.001 to 20% by mass.

As propylene oxide adducts of alcohol (excluding nonionic surfactants other than component (C) and component (C)), for example, methanol, ethanol, propanol, butanol, pentanol, hexanol, heptanol, octanol Propylene oxide added to monoalcohols such as; And polyhydric alcohols such as diols such as ethaneol, triols such as glycerin, tetraols such as erythritol, and hexaols such as sorbitol, in which propylene oxide is added. With respect to the total mass of the liquid detergent (?), the content of the propylene oxide adduct of alcohol is preferably 0.1 to 10% by mass.

Examples of fatty acid esters include 2-ethylhexanoic acid 2-ethylhexyl (another name: isooctyl acid 2-ethylhexyl, 2H08) and the like. The content of the fatty acid ester is preferably 0.01 to 5% by mass relative to the total mass of the liquid detergent (α).

Examples of the metal ion scavenger (chelating agent) include lactic acid, ethylenediaminetetraacetic acid (EDTA), triethylenetetraacetic acid (TTHA), methylglycine diacetic acid (MGDA), hydroxyiminodisuccinic acid (HIDS), and diethylene. And organic phosphonic acids of acids such as triamine pentaacetic acid (DTPA) and 1-hydroxyethylidene-1,1-diphosphonic acid (HEDP), or salts thereof. As a form of the salt of a chelating agent, sodium, potassium, calcium, magnesium, etc. are mentioned, for example.

The chelating agent contained in the liquid detergent (?) may be one or two or more.

With respect to the total mass of the liquid detergent (α), the content of the chelating agent is preferably 0.001 to 10% by mass.

Examples of the enzyme include protease, amylase, lipase, cellulase, mannaase, and the like. Here, "enzyme" means an enzyme preparation.

Examples of the protease include Medley (registered trademark) Core210L, Savinase (registered trademark) 16L and the like available from Novozymes as a protease preparation.

Examples of the amylase include Amplify12L (registered trademark), Medley (registered trademark) and Core210L (brand name) available from Novozymes as an amylase preparation.

Examples of the lipase include Lipex (registered trademark) 100L available from Novozymes as a lipase preparation.

The number of enzymes contained in the liquid detergent (?) may be one or two or more.

With respect to the total mass of the liquid detergent (?), the content of the enzyme is preferably 0.01 to 10% by mass.

Examples of antioxidants include BHT (dibutylhydroxytoluene) and BHA (butylhydroxyanisole).

Antioxidants contained in the liquid detergent (?) may be one or two or more.

With respect to the total mass of the liquid detergent (?), the content of the antioxidant is preferably 0.01 to 3% by mass.

Examples of preservatives include Dow Chemical's "Cayson CG" (brand name), Tor Japan's "Activeside MBS" (brand name), Clariant's "NIPACIDE BIT 20" (brand name), and the like.

The preservatives contained in the liquid detergent (?) may be one or two or more.

With respect to the total mass of the liquid detergent (α), the content of the preservative is preferably 0.001 to 1% by mass.

Examples of the antibacterial agent include cationic fungicides such as diclosan, triclosan, and quaternary ammonium salt (benzalkonium chloride).

The antibacterial agent contained in the liquid detergent (?) may be one or two or more.

With respect to the total mass of the liquid detergent (α), the content of the antimicrobial agent is preferably 0.001 to 10% by mass.

Examples of the soil release agent include polymers having at least one repeating unit selected from the group consisting of an alkylene terephthalate unit and an alkylene isophthalate unit, and an oxyalkylene unit. Examples of such polymers include those described in International Publication No. 2017/142012. As a commercial item made by SR, a brand name "TexCare SRN-170" made by Clariant, etc. is mentioned, for example. Further, examples of the soil release agent include polymers (P) such as alkylene oxide adducts of polyalkyleneamines. Examples of the alkylene oxide adducts of polyalkyleneamines include those described in International Publication No. 2017/142012 and Japanese Patent Publication No. 2017-514967. Examples of the polymer (P) include a brand name "Sokalan HP 20" manufactured by BASF.

In addition, as a soil release agent, the cationic cellulose described in Japanese Patent Laid-Open No. 2019-90057 can be mentioned.

Soil release agents contained in the liquid detergent (?) may be one or two or more.

The content of the soil release agent is preferably 0.1 to 20% by mass relative to the total mass of the liquid detergent (α).

Examples of the dispersant include polyacrylic acid and salts thereof, polymethacrylic acid and salts thereof, high molecular weight polycarboxylic acids or salts thereof.

The dispersant contained in the liquid detergent (?) may be one or two or more.

With respect to the total mass of the liquid detergent (α), the content of the dispersant is preferably 0.01 to 5% by mass.

Examples of the flavoring agent include a perfume raw material alone or a perfume composition comprising a perfume raw material, a perfume solvent, a perfume stabilizer, and the like, and a perfume commonly used in a liquid detergent composition can be blended. In addition, you may blend a capsule fragrance.

The flavoring agent contained in the liquid detergent (?) may be one or two or more.

With respect to the total mass of the liquid detergent (α), the content of the flavoring agent is preferably 0.01 to 5% by mass.

Examples of the colorant include quinone-based dyes, triphenylmethane-based dyes, xanthene-based dyes, quinoline-based dyes, and pyrene-based dyes. In this specification, "C.I." is an abbreviation of a color index.

The structure of each dye is described in the 「Legal Color Handbook」 (Japanese Cosmetics Industry Liaison Committee) and Dye Manual (Organic Synthetic Chemical Association).

As a quinone pigment, for example, C.I. Solvent Blue 63 (C.I. Solvent Blue 63, Blue No. 403), and brand names such as Liquitint Blue HP, Liquitint Blue BL, and Liquitint Blue MC manufactured by Miliken.

Examples of the triphenylmethane-based dye include Green No. 3 (C.I.42053).

As a quinoline pigment|dye, Yellow No. 203 (C.I. Acid Yellow 3) etc. are mentioned, for example.

The coloring agent contained in the liquid detergent (?) may be one or two or more.

With respect to the total mass of the liquid detergent (α), the content of the colorant is preferably 0.1 to 100 ppm by mass.

Examples of the fluorescent agent include a biphenyl type fluorescent agent such as 4,4'-bis(2-sulphostyryl)biphenyldisodium salt, and 4,4'-bis((4-amino-6-morpholino-1). And stilbene-type fluorescent agents such as ,3,5-triazinyl-2)amino)stilbene-2,2'-disulfonate.

The fluorescent agent contained in the liquid detergent (?) may be one or two or more.

With respect to the total mass of the liquid detergent (α), the content of the fluorescent agent is preferably 0.01 to 10% by mass.

Examples of the pH adjuster include inorganic acids such as hydrochloric acid, sulfuric acid, and phosphoric acid, sodium hydroxide, potassium hydroxide, alkanolamine (for example, monoethanolamine, diethanolamine, triethanolamine, etc.), and ammonia. Among these, from the viewpoint of liquid stability, sulfuric acid, sodium hydroxide, potassium hydroxide, and alkanolamine are preferable, and sulfuric acid and sodium hydroxide are preferable.

The pH adjuster contained in the liquid detergent (?) may be one or two or more.

<pH>

The pH of the liquid detergent (α) at 25°C is preferably 5 to 9, more preferably 5.5 to 8.5, more preferably 6 to 8, particularly preferably 6.5 to 8, and most preferably 7 to 8 Do. When the pH of the liquid detergent (α) is within the above range, liquid stability is excellent. In addition, it is easy to prevent the influence on the textile product when the coating is left to stand.

The pH of the liquid detergent (?) can be adjusted by adding a pH adjuster as necessary.

The pH in this specification refers to a value measured by a pH meter (product name: HM-30G, manufactured by Toa DK-K) with a measurement object at 25°C.

<Viscosity>

_{The viscosity (V 20} ) of the liquid detergent (α) at 20° C. is preferably 5 to 200 mPa·s, more preferably 10 to 100 mPa·s, and still more preferably 15 to 60 mPa·s. When the viscosity (V ₂₀ ) of the liquid detergent (α) is equal to or greater than the lower limit of the above range, when the liquid detergent (α) is sprayed on the textile product, the liquid detergent (α) is liable to be fixed to the dirt adhering to the textile product. If the viscosity (V ₂₀ ) of the liquid detergent (α) is less than or equal to the upper limit of the above range, when the liquid detergent (α) is applied to the fiber product, it becomes easy to spray the liquid detergent (α) on the fiber product.

Further, the ratio (V ₅ / V ₂₀₎ of the viscosity (V ₅₎ of the 5 ℃ of liquid cleaning agent (α) to the viscosity (V ₂₀₎ is, and 1-4 are preferred, more preferably 1-3, 1 to 2 are more preferable.

The viscosity of the liquid detergent (α) can be adjusted by the amount of addition of the solvent and hydrotropic agent (e.g. toluenesulfonic acid, toluenesulfonic acid salt, cumenesulfonic acid, cumenesulfonic acid salt, benzoic acid, benzoate, etc.), pH, etc. have.

Viscosity in this specification means a value measured using a B-type (Brookfield type) viscometer with a measurement target of 20°C or 5°C.

<Liquid detergent product in container>

It is preferable that the liquid detergent (α) is accommodated in a container and used as a liquid detergent product contained in the container.

Examples of the container include a squeeze container, a trigger container, and a container having a coated surface to which the liquid is applied directly to the textile product. Among these, a squeeze container is preferable from the viewpoint of a large amount of coating per time, uniform and rapid coating even in a wide range, and can be applied with a pinpoint even in a narrow range.

The squeeze container has a container body that is deformed by squeeze (pressing), a discharge port for discharging a liquid detergent (α) contained in the container body, and has a cap attached to the inlet of the container body, and makes the container body hard or inverted. Meanwhile, the container body is deformed by squeezing the body of the container body by hand, and the liquid detergent α is discharged from the discharge port. In such a squeeze container, when the squeezed state is opened, the deformation of the container body is released, and the liquid detergent α remaining in the discharge port is returned into the container body by the bag suction mechanism (suction mechanism) at that time. As the squeeze container, a well-known container can be used, and for example, a publicly known squeeze container disclosed in Japanese Unexamined Patent Application Publication No. 2002-264958 can be used.

<Production method>

The liquid detergent (?) can be produced according to a conventionally known method for producing a liquid detergent. For example, in the case of preparing a liquid detergent (α) containing water, each component excluding a pH adjuster is added to and mixed with a part of water as a dispersion medium, and then, if necessary, a pH adjuster is added to adjust the pH, The remainder of water is added to make the total amount 100% by mass, so as to obtain a liquid detergent (?). In addition, it is preferable to obtain a liquid detergent product contained in a container such as a squeeze container.

Since the liquid detergent (α) of the present invention contains a specific amount of the component (A) and the component (B) described above, and also regulates the content of the component (C) and the component (D) in the liquid detergent (α), The stability is good, the cleaning power is excellent, and the diffusion prevention of contamination is excellent.

<How to use (washing method)>

In order to obtain high cleaning power, the liquid detergent (α) of the present invention is applied to the contamination of a textile product (object to be cleaned) without diluting the liquid detergent (α) with water, etc. Suitable for the method.

By applying the liquid detergent α to the textile product, the liquid detergent α is impregnated with the contaminated portion of the fiber product, and the stain and the liquid detergent α are brought into contact with each other.

When applying the liquid detergent (α) to the textile product, it is preferable to contact the contamination while maintaining the concentration of the liquid detergent (α). For this reason, the fiber product is not immersed in water, and the liquid detergent ( Apply α).

There is no particular limitation as a method of applying the liquid detergent (?) to the textile product. For example, a liquid detergent product contained in a container in which the liquid detergent (α) is contained in a squeeze container or trigger container is used, and the discharge port of the container is separated from the fiber product (i.e., when the discharge port and the fiber product are not in contact). A detergent (α) may be sprayed on the textile product. Further, a liquid detergent product contained in a container accommodated in a container or the like having a coated surface of the liquid detergent α may be used, and the liquid detergent α may be directly applied to the fiber product by contacting the coated surface of the container with the fiber product. From the viewpoint of uniform and rapid application over a wide range, a method of spraying a liquid detergent (?) onto the fiber product is preferred. Among them, a method of spraying a liquid detergent (?) contained in a squeeze container onto a fiber product in a shower shape is preferred, especially from the viewpoint of a large amount of single application and uniform and rapid application even over a wide range. In addition, the power of the squeeze may be adjusted according to the area of the contaminated part, and when the contaminated part is wide, the power of the squeeze may be strengthened and the liquid detergent α may be sprayed in a shower shape. When the contaminated part is narrow, it is good to weaken the power of the squeeze and spray the liquid detergent α on the pinpoint.

It is preferable that the application amount of the liquid detergent α is equal to or greater than the amount in which the liquid detergent α penetrates the entire portion of the dirt-adhering portion. In addition, the application amount of the liquid detergent (α) is preferably 100% o.w.f. (the amount of liquid detergent (α) applied per unit weight of the fiber product) or more, more preferably 200% o.w.f. Or more, more preferably 300% o.w.f. That's it. The upper limit of the application amount of the liquid detergent (α) is not particularly limited, but, for example, 1000% o.w.f. by weight of the large fiber. The amount below is preferable.

After applying the liquid detergent (α) to the textile product, the standing time until washing is preferably 30 minutes or more, more preferably 1 hour or more, more preferably 3 hours or more, particularly preferably 6 hours or more. Do. By allowing it to stand for 30 minutes or more, moisture in the liquid detergent α applied to the textile product evaporates, and the liquid detergent α is concentrated on the textile product. As a result, compatibility with contamination increases, and excellent cleaning power is exhibited.

Since the liquid cleaning agent α is excellent in preventing the diffusion of contamination, it has the advantage that it is possible to lengthen the standing time compared to the conventional one. The leaving time may be 24 hours or longer, for example. Although it does not specifically limit about the upper limit of the leaving time, For example, the leaving time is preferably 168 hours (one week) or less.

The content of water in the liquid detergent (α) after standing is preferably 30% by mass or less, more preferably 20% by mass or less, even more preferably 10% by mass or less, and 0% by mass with respect to the total mass of the liquid detergent (α). It can be %. Further, the weight of the fiber product before and after standing is measured, the difference (reduction amount) is regarded as the amount of evaporated moisture, and the content of water in the liquid detergent α after standing can be determined.

Although it does not specifically limit about the environment at the time of standing after application|coating, 5-40 degreeC is preferable, 10-35 degreeC is more preferable, and, as for the temperature, 15-30 degreeC is still more preferable. Further, the humidity is preferably 90% or less, more preferably 70% or less, and more preferably 50% or less. The lower limit of humidity is not particularly limited, but, for example, the humidity is preferably 15% or more.

The place to be left is not particularly limited. For example, any place such as a washing tub, a laundry basket, or a washbasin may be used, but a place where humidity is not occupied such as a laundry basket is more preferable.

The method of washing treatment is to bring the textile product coated with a liquid detergent (α) into contact with water or a cleaning solution containing a fresh detergent (β), and transfer contamination and liquid detergent (α) adhering to the textile product into the water. It may be a method of removing, and it is not particularly limited. The usual washing treatment includes a washing treatment and a rinsing treatment. The rinsing treatment is a treatment for removing the liquid detergent α remaining in the fiber product after the cleaning treatment. After the rinsing treatment, drying or the like is performed to remove moisture from the fiber product.

In the washing treatment, in a washing liquid containing water or a new detergent (β), preferably, an external force is applied to the textile product to transfer the contamination into the washing liquid, and then dehydration or the like is performed to separate the fiber product from the washing liquid.

In the rinsing treatment, after performing the cleaning treatment, in the rinse water not containing the liquid detergent (α) and the detergent (β), preferably, the liquid detergent (α) remaining in the fiber product by applying an external force to the fiber product is added to the rinse water. After transferring, dehydration or the like is performed to separate the fiber product from the rinse water.

Washing treatment is usually performed once. The rinsing treatment may be performed once, or may be repeated twice or more. When the rinsing treatment is completed once, it is preferable because the use of the rinsing water can be saved and the washing time can be shortened.

The method of applying an external force to the textile product may be, for example, a method of applying mechanical force with a washing machine, or a method by hand washing such as rubbing, pressing, tapping, rubbing, pinching, or shaking.

At the start of the washing treatment, only water may be brought into contact with the textile product, or may be a washing liquid containing water and a fresh detergent (β). When only water is contacted, the liquid detergent (α) applied to the textile product is dispersed in water to become a washing liquid. When water and a cleaning solution containing a cleaning agent (β) are brought into contact with each other, the liquid cleaning agent (α) applied to the textile product is dispersed in the cleaning solution, thereby increasing the concentration of the cleaning agent component in the cleaning solution.

The detergent (β) may be a liquid or a powder. The detergent (β) is not particularly limited, and a known detergent for textile products can be used. Further, a liquid detergent (α) may be used as the detergent (β), or a commercial product may be used. In particular, as the detergent (β), a detergent containing polyoxyethylene fatty acid methyl ester (MEE) and polyoxyethylene alkyl ether (AE) is preferable.

As commercially available products of the cleaning agent (β), for example, "Top NANOX" and "Top Clear Liquid" manufactured by Lion Corporation; "Attack NEO", "Attack ZERO", and "Attack High Penetration Bio Gel" manufactured by Kao Corporation; "Ariel Ion Power Gel" and "Ariel Pawazel Ball" by Procter & Gamble.

The fiber product in the washing treatment may include not only a fiber product to which the liquid detergent (α) has been applied, but also other fiber products to which the liquid detergent (α) has not been applied.

The amount of the cleaning agent used in the cleaning treatment is preferably 10 to 500 in a ratio of the total mass of the fiber product (the amount of cloth)/the total mass of the cleaning agent (the total mass of the liquid detergent (α) and the detergent (β)), and 10 to 300. This is more preferable, and 10-100 are still more preferable. If the ratio of the total mass of the fiber product/total mass of the cleaning agent is more than the lower limit of the above range, the rinsing property is excellent when applied for a long time, and when it is less than the upper limit of the above range, the liquid detergent (α) is not applied to other fiber products. The cleaning power is more excellent.

When a liquid detergent (α) is used as the detergent (β), all of the liquid detergent (α) used in the cleaning treatment may be used for application to the contamination of the textile product, and part of it may be applied to the contamination of the textile product. And the rest may be added at the time of washing treatment.

The amount of water used in the washing treatment is preferably 50 times or more, more preferably 50 to 1500 times, and 50 times the amount of the detergent used in the washing treatment (total mass of the liquid detergent (α) and detergent (β)). ~1000 times is more preferable. When the amount of water used in the cleaning treatment is more than the lower limit of the above range, the rinsing property is more excellent, and when it is less than the upper limit of the range, the cleaning performance is more excellent.

According to the above-described washing method for textile products, since the liquid detergent (α) of the present invention is used, even after applying the liquid detergent (α) to the textile product (object to be cleaned), it can be left for a long time (for example, 30 minutes or more). , The diffusion of contamination can be suppressed, and excellent cleaning power can be exhibited.

Examples of textile products include medical clothing, dishcloths, sheets, curtains, and pillow covers. Among these textile products, medical care, pillow covers, and the like are particularly suitable. The material of the fiber product is not particularly limited, and may be any of natural fibers such as cotton, silk, and wool, and chemical fibers such as polyester and polyamide.

(Example)

Hereinafter, the present invention will be described in detail by showing examples, but the present invention is not limited by the following description.

``Used raw materials''

(A) As a component, the compound shown below was used.

-A-1: AES. Polyoxyalkylene alkyl ether sulfate (a mixture of sodium polyoxyethylene lauryl ether sulfate and sodium polyoxyethylene myristyl ether sulfate, average added mole number of EO 1). ^{R 1} in formula (a-1) is a C12-C14 linear alkyl group, k is 1, n is 0, and M is sodium. Moreover, the ratio of the compound (component (a0)) in which k is 0 and n is 0 with respect to the whole A-1 is 43 mass%. What was synthesized by the method of Preparation Example 1 below.

-A-2: α-olefin sulfonate sodium (AOS), brand name "Lipolan LB-840", manufactured by Lion Corporation.

A-3: Sodium lauryl sulfate (AS), SDS, brand name "sodium dodecyl sulfate", manufactured by Wako Junyaku Kogyo Co., Ltd.

A-4: Sodium linear alkylbenzenesulfonate (LAS), brand name "Lyfon LS-250", manufactured by Lion Corporation.

-A-5: Secondary sodium alkanesulfonic acid (SAS), brand name "SAS30", manufactured by Clariant Japan.

A-6: IOS. Internal olefin sulfonate synthesized by the method described in Example 7 of Japanese Patent Application Laid-Open No. 2001-247534.

(B) As a component, the compound shown below was used.

B-1: glycerin. Brand name "Keshohinyo Glycerin", manufactured by Sakamoto Yakuhin High School.

B-2: Sorbitol. The brand name "Sorbit L-70", manufactured by Mitsubishi Shoji Food Tech.

(C) As a component, the compound shown below was used.

C-1: polyoxyethylene alkyl ether (in the formula (c-1), R ² is a C12 alkyl group (C12) and a C14 linear alkyl group (C14) (by mass ratio C12:C14=75: 25), R ³ is a hydrogen atom, s is 6, t is a compound of 0), a brand name "Reox CL-60", manufactured by Lion Corporation.

C-2: polyoxyethylene alkyl ether (in the formula (c-1), R ² is a C12 alkyl group (C12) and a C14 linear alkyl group (C14) (by mass ratio C12:C14=75: 25), R ³ is a hydrogen atom, s is 15, t is a compound of 0), a brand name "LMAO-90", manufactured by Lion Chemical Corporation.

(D) As a component, the compound shown below was used.

D-1: citric acid. The brand name "Anhydrous Citric Acid", manufactured by Fuso Kagaku Kogyo Co., Ltd.

(E) As a component, the compound shown below was used.

E-1: palm fatty acid. The brand name "Yashishibosan (PKO) TC", manufactured by Nichiyu Corporation.

As an optional component, the compound shown below was used.

[Common component X] Total 0.7% by mass

·Perfume ····0.1% by mass.

-Isooctylic acid 2-ethylhexyl ... 0.5% by mass.

*Enzyme...0.1% by mass.

[Common component Y] Total 11.7% by mass

·Perfume ····0.1% by mass.

*Enzyme...0.1% by mass.

·Sodium cumenesulfonate ···········1.5% by mass.

·Phenoxyethanol ······· 3.0% by mass.

-AE (10EO2PO10EO) ············7.0% by mass.

In addition, the constituent components of the common component are as follows.

Perfume: Perfume composition A described in Tables 7 to 14 of Japanese Unexamined Patent Application Publication No. 2003-268398.

-Isooctylic acid 2-ethylhexyl: A brand name "Isooctylic acid 2-ethylhexyl", manufactured by Lion Specialty Chemicals.

Enzyme: Trade name "Medley Core210L", manufactured by Novozymes.

Sodium cumenesulfonate: The brand name "Teikatox N5040", manufactured by Teika.

Phenoxyethanol: The brand name "Phenyl Glycol", manufactured by Nippon New Kazai.

AE (10EO2PO10EO): To a natural alcohol (a mass ratio of 12 alcohols/carbon atoms = 7/3), 10 moles of ethylene oxide, 2 moles of propylene oxide, and 10 moles of ethylene oxide, in this order. Addition of blocks. In formula (c-2), R ⁴ is a C12 alkyl group (C12) and a C14 alkyl group (C14) (by mass ratio C12:C14=70:30), R ⁵ is a hydrogen atom, p is 10 And, q is 2, and r is 10.

[Other optional ingredients]

PEG: polyethylene glycol having a weight average molecular weight of 1000. Brand name "PEG#1000-L60", made by Lion Corporation.

-PH regulator: MEA (monoethanolamine (alkali agent)), brand name "monoethanolamine", manufactured by Nippon Shokubaisei Co., Ltd.

[Preparation Example 1: Synthesis of component (A-1)]

In a 4 L autoclave, 400 g of a brand name CO1270 alcohol (a mixture of an alcohol of 12 carbons and an alcohol of 14 carbons) (a mixture of 75/25 by weight) manufactured by Procter & Gamble as a raw material alcohol, and 0.8 g of a potassium hydroxide catalyst as a reaction catalyst were added Then, after replacing the inside of the autoclave with nitrogen, the temperature was raised while stirring. Subsequently, 91 g of ethylene oxide was introduced and reacted while maintaining the temperature at 180°C and the pressure at 0.3 MPa or less to obtain an alcohol ethoxylate.

Using gas chromatography: GC-5890 manufactured by Hewlett-Packard, detector: hydrogen salt ionization detector (FID), and column: Ultra-1 (manufactured by HP, L25m×φ0.2mm×T0.11µm) As a result of analysis, the obtained alcohol ethoxylate had an average added mole number of ethylene oxide of 1.0. In addition, the amount of the compound to which ethylene oxide was not added (which finally becomes the component (a0)) was 43% by mass based on the total alcohol ethoxylate obtained.

Subsequently, 237 g of the alcohol ethoxylate obtained above was taken out into a 500 mL flask equipped with a stirring device, replaced with nitrogen, and then 96 g of liquid anhydrous sulfuric acid (sulfan) was slowly added dropwise while maintaining the reaction temperature at 40°C. After completion of the dropwise addition, stirring was continued for 1 hour (sulfation reaction) to obtain polyoxyethylene alkyl ether sulfuric acid. Subsequently, this was neutralized with an aqueous sodium hydroxide solution to obtain A-1.

``Examples 1 to 17, Comparative Examples 1 to 7''

In the compositions shown in Tables 1 to 4, each component was added to water and mixed to prepare a liquid detergent (?) of each example.

The blending amount in the table is a net content conversion value. Components for which the blending amount is not described in the table are not blended. The "appropriate amount" of the content of the pH adjuster is an amount required for adjusting the pH at 25°C of the liquid composition of each example to 7. The water content "balance" means the balance added so that the total of all components contained in the liquid composition (?) becomes 100% by mass.

About the liquid detergent (?) of each example, the diffusion preventing property of contamination, cleaning power, and liquid stability were evaluated by the following method. The results are shown in Tables 1-4.

"Assessment Methods"

<Evaluation of prevention of diffusion of contamination>

(1) Fabrication of oil stain contaminated cloth

B.V.D. cut into 5cm×5cm 100% GOLD cotton round neck short sleeve T-shirt (Tanigasira Shoten) was used as the uncontaminated cloth.

For Examples 1 to 11 and Comparative Examples 1 to 7, 0.050 mL of sebum model contaminated oil in which 0.03% by mass of oil red was added to mixed oil containing oleic acid and triolein was added dropwise to the uncontaminated spring, and at room temperature. What dried for 1 hour was made into an oil stain-contaminated cloth.

For Examples 12 to 17, 0.050 mL of rayu (manufactured by SB Shokuhin Co., Ltd.) was added dropwise to the uncontaminated spring, and dried at room temperature for 1 hour to obtain an oil stain-contaminated cloth.

(2) Evaluation of prevention of diffusion of pollution

For each of the five oil stain-contaminated cloths, 0.3 mL of the liquid detergent (α) to be evaluated was sprayed on the part where the oil was dropped using a pipette, and then left for 12 hours in an environment of 25°C and 60%. Made of cloth.

The oil stain-contaminated cloth (control) before applying the liquid detergent (α), and the test cloth that was applied with the liquid detergent (α) and left to stand for 12 hours were measured with the length of the long axis of the oil stain as the diffusion diameter. The average value of the diffusion diameters of five oil stain-contaminated cloths was calculated, and the diffusion preventing property of contamination was evaluated according to the following criteria.

Assuming that the average value of the diffusion diameters in the test cloth is A (mm) and the average value of the diffusion diameters in the control is B (mm), A-B is taken as "the difference between the average value of the diffusion diameters". When the "difference between the average value of the diffusion diameter" is less than 6 mm, it is judged as pass.

(Evaluation standard)

I: The difference in the average value of the diffusion diameter is less than 3 mm.

II: The difference in the average value of the diffusion diameter is 3 mm or more and less than 6 mm.

III: The difference in the average value of the diffusion diameter is 6 mm or more.

<Evaluation of cleaning power>

(1) Fabrication and cleaning of oil stain-contaminated cloth

To the uncontaminated spring described above, 0.050 mL of model contaminated oil in which 0.03% by mass of oil red was added by diluting the tallow five times with chloroform was added dropwise. did.

For each of the five oil stain-contaminated cloths, 0.3 mL of the liquid detergent (α) to be evaluated was sprayed on the part where the oil was dropped using a pipette, and then left for 6 hours in an environment of 25°C and 60%. Made of cloth.

Next, in a Terg-O-Tometer (manufactured by UNITED STATES TESTING) containing 900 mL of tap water at 15°C and 0.3 g of a commercially available detergent (trade name “Top NANOX”, manufactured by Lion Corporation), the five test cloths and the charge cloth (Meriyas cloth) were added. It was finely cut, sufficiently washed and rinsed, and dried), and washed at 120 rpm for 10 minutes. The amount of charge cloth was set so that the bath ratio (mass of cleaning liquid/total mass of charge cloth) was 20 times.

After that, take out 5 test cloths after washing, rinse with running water for 3 minutes in a two-tank washing machine (product number ``CW-C30A1'' manufactured by Mitsubishi Denki), dehydrate for 1 minute, and stain the oil stain after washing the air-dried one. Made of cloth.

(2) Evaluation of cleaning power

Using a colorimeter (trade name "SE2000", manufactured by Nippon Denshoku Co., Ltd.), the reflectance of the uncontaminated spring and the oil stain-contaminated cloth before and after washing were measured, respectively, and the washing rate (%) was determined by the following formula (ii). I saved it.

Cleaning rate (%) = (K/S of oil stain contaminated cloth before washing-K/S of oil stain contaminated cloth after washing)/(K/S of oil stain contaminated cloth before washing-K/S of uncontaminated cloth)× 100...(ii)

[In formula (ii), K/S is (1-R/100) ² /(2R/100), and R is the reflectance (%) of the oil stain-contaminated cloth before washing, the oil stain contaminated cloth or uncontaminated spring after washing. Represents. In addition, K denotes an absorption coefficient, S denotes a scattering coefficient, and R denotes an absolute reflectance.]

The larger the value of this cleaning rate is, the higher the cleaning power is.

The average value of the cleaning rates of the five oil stain-contaminated cloths was calculated, and the cleaning power was evaluated according to the following criteria. When the average value of the cleaning rate is 65% or more, it is judged as pass.

(Evaluation standard)

I: The average value of the cleaning rate is 75% or more.

II: The average value of the cleaning rate is 65% or more and less than 75%.

III: The average value of the cleaning rate is 55% or more and less than 65%.

IV: The average value of the cleaning rate is less than 55%.

<Evaluation of liquid stability>

A transparent glass bottle was filled with 40 g of the liquid detergent (?) of each example, and the lid was closed and sealed. In this state, they were left to stand in each thermostat at 0°C and 50°C for 24 hours and stored.

After storage for 24 hours, the appearance of the liquid was visually observed, and the liquid stability of the liquid detergent (?) was evaluated based on the following criteria.

(Evaluation standard)

I: Colorless, transparent and fluidity even after storage at 0°C and 50°C.

II: After storage at at least one of 0°C and 50°C, precipitation or occurrence of turbidity or solidification of the content solution was observed.

In Tables 1-4, "A/B ratio" is a mass ratio represented by (A) component / (B) component. The "total surfactant/C ratio" is a mass ratio represented by all surfactants/(C) component.

As shown in Tables 1 to 4, Examples 1 to 17 had good cleaning power and liquid stability, and excellent in preventing diffusion of contamination when a liquid detergent (?) was applied and left for a long time.

On the other hand, Comparative Example 1 not containing the component (A) was inferior in cleaning power and prevention of diffusion of contamination.

In Comparative Example 2 in which the component (A) was composed of only LAS and the content of LAS was 15% by mass, the cleaning power was inferior. In addition, compared with Examples 1 to 17, the diffusion preventing property of contamination was also inferior.

Comparative Example 3 in which the content of the component (B) was less than 3% by mass was inferior in cleaning power.

Comparative Example 4 in which the content of the component (C) was 5% by mass or more was inferior in preventing diffusion of contamination.

Comparative Example 5 in which the content of the component (D) was 10% by mass or more was inferior in liquid stability.

Comparative Example 6 in which the A/B ratio was less than 0.2 was inferior in cleaning power. Further, compared with Examples 1 to 17, the ability to prevent the diffusion of contamination was also inferior.

Comparative Example 7 in which the A/B ratio exceeded 5 was inferior in liquid stability.

Claims (6)

The following (A) component and,
As a liquid detergent for textile products containing the following (B) component,
When the component (A) consists of only the following LAS, the content of LAS is more than 15% by mass relative to the total mass of the liquid detergent for textile products,
The content of the component (B) is 3 to 20% by mass with respect to the total mass of the liquid detergent for textile products,
The content of the following (C) component is less than 5% by mass with respect to the total mass of the liquid detergent for textile products,
The content of the following (D) component is less than 10% by mass with respect to the total mass of the liquid detergent for textile products,
The total mass of the surfactant (excluding soap) is 30% by mass or less with respect to the total mass of the liquid detergent for textile products,
The liquid detergent for textile products having a mass ratio of 0.2 to 5 represented by the component (A)/component (B).
(A) Component: polyoxyalkylene alkyl ether sulfuric acid or its salt, α-olefinsulfonic acid or its salt (AOS), alkyl sulfuric acid ester or its salt (AS), linear alkylbenzenesulfonic acid or its salt (LAS), internal olefin At least one member selected from the group consisting of sulfonic acid or its salt olefin (IOS) and hydroxy (HAS) and alkanesulfonic acid or its salt (SAS).
(B) Component: sugar alcohol.
(C) Component: A compound represented by the following general formula (c-1).
(D) Component: citric acid.
R ² -O-[(EO) _s /(PO) _t ]-R ³ ···(c-1)
In formula (c-1), R ² is a C6-C22 hydrocarbon group, R ³ is a hydrogen atom, an alkyl group or an alkenyl group, EO is an oxyethylene group, PO is an oxypropylene group, and s is an EO It represents the average repetition number, is the number of 3-15, t represents the average repetition number of PO, and is the number of 0-6. The method of claim 1,
The liquid detergent for textile products wherein the component (A) is polyoxyalkylene alkyl ether sulfuric acid or a salt thereof, and the mass ratio represented by the component (A)/component (B) is 0.2 to 5. The method according to claim 1 or 2,
The liquid detergent for textile products wherein the component (B) is at least one of glycerin and sorbitol. The method according to any one of claims 1 to 3,
Liquid detergent for textile products further comprising the following (E) component.
(E) Ingredient: Soap. The method according to any one of claims 1 to 4,
Liquid cleaner for textile products sprayed on textile products. A liquid detergent product contained in a container housed in a squeeze container with the liquid detergent for textile products according to any one of claims 1 to 5.