TW202041661A - Raw down cleaning agent and raw down cleaning liquid - Google Patents

Abstract

This raw down cleaning agent contains (A) at least one type of nonionic surfactant selected from among compounds represented by general formula (I), (B) at least one type of anionic surfactant selected from among [alpha]-sulfo fatty acid alkyl ester salts, polyoxyalkylene alkyl ether sulfates, and olefin sulfonates, and (C) a chelating agent. This raw down cleaning liquid contains component (A), component (B), component (C), and (D) water. (I) R1-X-[(EO)m/(PO)n]-R2.

Description

Detergent for raw feathers and detergent for raw feathers

The invention relates to a detergent for raw feathers and a detergent for raw feathers. This application claims priority based on Japanese Patent Application No. 2019-083912 filed in Japan on April 25, 2019, and the content is incorporated herein.

The raw material feathers of ducks or geese have dirt such as grease, soil, dust, and microorganisms attached to them. Therefore, in order to obtain feathers used in feather products such as down jackets or duvets, it is necessary to wash the raw feathers to remove dirt attached to the raw feathers. When raw feathers are cleaned, the following method is usually applied: After a washing step is performed with a washing liquid diluted with a detergent, 10 to 20 washing treatments are carried out in batches. The dehydration treatment is a set of steps (hereinafter, this step is referred to as a "washing step"). As a cleaning agent for raw feathers, for example, Patent Document 1 discloses a cleaning agent containing polyoxyethylene alkyl ether as a main component. In addition, Patent Document 2 discloses a detergent in which a nonionic surfactant and a solvent are used in combination in order to improve the detergency. [Prior Art Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 61-60794 [Patent Document 2] Japanese Patent Laid-Open No. 6-248292

[The problem to be solved by the invention] In the batch method, the number of washing steps is as many as 10 times or more, so the waste water treatment burden of the processing factory of raw feathers is heavy. In addition, in the washing step, generally, except for the final dehydration treatment, a mesh (mesh) is used for the dehydration treatment. However, the more washing steps, the more the feathers fall out of the mesh and the yield will decrease. Therefore, from the viewpoint of water saving or yield, it is required to reduce the number of washing steps. Furthermore, if hard water is used in the washing step, the washing power of the detergent decreases. Therefore, a detergent having excellent washing power even when the raw feathers are washed with hard water is required. However, the cleaning agents described in Patent Literature 1 and Patent Literature 2 cannot sufficiently exhibit cleaning power when the raw feathers are washed with hard water. Therefore, if the number of washing steps is reduced, the transparency will decrease or a large amount of oil and fat components will remain, and high-quality feathers cannot be obtained.

The object of the present invention is to provide a detergent for raw feathers and a detergent for raw feathers that has high cleaning power, can save water, and can obtain high-quality feathers at a high yield. [Means to solve the problem]

The present invention has the following aspects. [1] A detergent for raw feathers, containing: (A) component: one or more nonionic surfactants selected from the compounds represented by the following general formula (I); (B) component: selected from One or more anionic surfactants among α-sulfo fatty acid alkyl ester salts, polyoxyalkylene alkyl ether sulfates, and olefin sulfonates; and component (C): chelating agent, R ¹ -X- [(EO) _m /(PO) _n ]-R ² …(I) (In the general formula (I), R ¹ is a linear or branched hydrocarbon group with 8 to 20 carbons, and X is a divalent linking group, R ² is a hydrogen atom, an alkyl group with 1 to 6 carbons or an alkenyl group with 2 to 6 carbons, EO is oxyethylene, PO is oxypropylene, m represents the average repeating number of EO, which is 3-30 N represents the average repetition number of PO, which is a number from 0 to 6). [2] The raw material feather detergent according to [1], wherein the m is a number from 3 to 15. [3] The raw material feather detergent according to [1] or [2], wherein the R ¹ is a linear secondary hydrocarbon group or a branched primary hydrocarbon group. [4] The raw material feather detergent according to [3], wherein said X is -O- or -COO-, said R ² is a hydrogen atom or an alkyl group having 1 to 3 carbons, and said n is 0 The number of ~3. [5] The raw material feather detergent according to [4], wherein the X is -O-, the R ² is a hydrogen atom, the m is a number from 5 to 11, and the n is 0. [6] The detergent for raw feathers according to any one of [1] to [5], wherein the content of the component (A) is 9% by mass relative to the total mass of the detergent for raw feathers ～55 mass%. [7] The detergent for raw feathers according to [6], wherein the content of the component (A) is 15% by mass to 50% by mass relative to the total mass of the detergent for raw feathers. [8] The detergent for raw feathers according to any one of [1] to [7], wherein the content of the component (B) is 0.5% by mass relative to the total mass of the detergent for raw feathers ～10% by mass. [9] The detergent for raw feathers according to [8], wherein the content of the component (B) is 0.5% by mass to 5% by mass relative to the total mass of the detergent for raw feathers. [10] The detergent for raw feathers according to any one of [1] to [9], wherein the mass ratio represented by the (A) component/the (B) component is 3-40. [11] The raw material feather detergent according to [10], wherein the mass ratio represented by the (A) component/the (B) component is 4 to 35. [12] The detergent for raw feathers according to [11], wherein the mass ratio represented by the (A) component/the (B) component is 7-15. [13] The detergent for raw feathers according to any one of [1] to [12], wherein the content of the component (C) is 0.1% by mass relative to the total mass of the detergent for raw feathers ～3% by mass. [14] The detergent for raw feathers according to [13], wherein the content of the component (C) is 0.5% by mass to 1.5% by mass relative to the total mass of the detergent for raw feathers. [15] The detergent for raw feathers according to any one of [1] to [14], wherein the component (C) is selected from methylglycine diacetic acid, ethylenediaminetetraacetic acid, 3-hydroxyl -2,2'-imino disuccinic acid and one or more of these salts. [16] The detergent for raw feathers according to any one of [1] to [15], which further contains (D) component: water. [17] The detergent for raw feathers according to [16], wherein the content of the component (D) is 45% to 85% by mass relative to the total mass of the detergent for raw feathers. [18] The raw material feather detergent according to any one of [1] to [17], wherein the α-sulfo fatty acid alkyl ester salt is a compound represented by the following general formula (II), R ³ CH(SO ₃ M ¹ )COOR ⁴ (II) (In the general formula (II), R ³ is a hydrocarbon group with 8 to 18 carbons, R ⁴ is a hydrocarbon group with 1 to 6 carbons, and M ¹ is a counter ion). [19] The raw material feather detergent according to any one of [1] to [18], wherein the polyoxyalkylene alkyl ether sulfate is a compound represented by the following general formula (III), R ^5- O-[(EO) _s /(PO) _t ]-SO ₃ M ² …(III) (In the general formula (III), R ⁵ is a linear or branched alkyl group with 10 to 20 carbons or carbon A straight or branched alkenyl group with a number of 10-20, EO is oxyethylene, PO is oxypropylene, s represents the average number of repetitions of EO, which is a number below 5, and t represents the average number of repetitions of PO , Is a number less than 1, and M ² is a relative ion; where s and t will not be 0 at the same time). [20] The raw material feather detergent according to any one of [1] to [19], wherein the olefin sulfonate is a compound represented by the following general formula (IV) and represented by the following general formula (V) At least one of the compounds, R ⁶ -CH=CH(CH ₂ ) _x -SO ₃ M ³ … (IV) (In the general formula (IV), R ⁶ is a straight-chain alkyl group with 9 to 15 carbons or A branched alkyl group or a straight or branched chain alkenyl group with 9 to 15 carbons, x is a number less than 5, and M ³ is a relative ion) R ⁷ -CH(OH)-(CH ₂ ) _y -SO ₃ M ⁴ …(V) (In the general formula (V), R ⁷ is a linear or branched alkyl group having 9 to 15 carbons or a linear or branched alkenyl group having 9 to 15 carbons, y Is a number from 1 to 6, and M ⁴ is a relative ion).

[21] A cleaning liquid for raw feathers, containing: (A) component: one or more nonionic surfactants selected from the compounds represented by the following general formula (I); (B) component: selected from One or more anionic surfactants among α-sulfo fatty acid alkyl ester salts, polyoxyalkylene alkyl ether sulfates and olefin sulfonates; (C) component: chelating agent; and (D) component: Water, R ¹ -X-[(EO) _m /(PO) _n ]-R ² …(I) (In the general formula (I), R ¹ is a linear or branched hydrocarbon group having 8 to 20 carbons, X is a divalent linking group, R ² is a hydrogen atom, an alkyl group with 1 to 6 carbons or an alkenyl group with 2 to 6 carbons, EO is oxyethylene group, PO is oxypropylene group, m represents the average of EO The number of repetitions is a number from 3 to 30, and n represents the average number of repetitions of PO, which is a number from 0 to 6). [22] The raw material feather cleaning liquid according to [21], wherein the m is a number from 3 to 15. [23] The raw material feather cleaning liquid according to [21] or [22], wherein the R ¹ is a linear secondary hydrocarbon group or a branched primary hydrocarbon group. [24] The raw material feather cleaning liquid according to [23], wherein said X is -O- or -COO-, said R ² is a hydrogen atom or an alkyl group having 1 to 3 carbons, and said n is 0 The number of ~3. [25] The raw material feather cleaning liquid according to [24], wherein said X is -O-, said R ² is a hydrogen atom, said m is a number from 5 to 11, and said n is 0. [26] The cleaning liquid for raw feathers according to any one of [21] to [25], wherein the content of the component (A) is 0.01% by mass relative to the total mass of the cleaning liquid for raw feathers ～0.25% by mass. [27] The cleaning solution for raw feathers according to [26], wherein the content of the component (A) is 0.04% by mass to 0.15% by mass relative to the total mass of the cleaning solution for raw feathers. [28] The cleaning liquid for raw feathers according to any one of [21] to [27], wherein the content of the component (B) is 0.002% by mass relative to the total mass of the cleaning liquid for raw feathers ～0.050% by mass. [29] The cleaning liquid for raw feathers according to [28], wherein the content of the component (B) is 0.002% by mass to 0.015 mass% with respect to the total mass of the cleaning liquid for raw feathers. [30] The cleaning liquid for raw feathers according to any one of [21] to [29], wherein the mass ratio represented by the (A) component/the (B) component is 3-40. [31] The raw material feather cleaning liquid according to [30], wherein the mass ratio represented by the (A) component/the (B) component is 4 to 35. [32] The cleaning liquid for raw feathers according to [31], wherein the mass ratio represented by the (A) component/the (B) component is 7-15. [33] The cleaning liquid for raw feathers according to any one of [21] to [32], wherein the content of the component (C) is 0.001% by mass relative to the total mass of the cleaning liquid for raw feathers ～0.010% by mass. [34] The cleaning solution for raw feathers according to [33], wherein the content of the component (C) is 0.002% by mass to 0.008% by mass relative to the total mass of the cleaning solution for raw feathers. [35] The cleaning liquid for raw feathers according to any one of [21] to [34], wherein the content of the component (D) is 99.0% by mass relative to the total mass of the cleaning liquid for raw feathers ～99.987% by mass. [36] The raw material feather cleaning liquid according to [35], wherein the content of the component (D) is 99.5% to 99.96 mass% with respect to the total mass of the raw material feather cleaning liquid. [37] The cleaning liquid for raw feathers according to any one of [21] to [36], wherein the component (C) is selected from methylglycine diacetic acid, ethylenediaminetetraacetic acid, 3-hydroxyl -2,2'-imino disuccinic acid and one or more of these salts. [38] The raw material feather cleaning liquid according to any one of [21] to [37], wherein the α-sulfo fatty acid alkyl ester salt is a compound represented by the following general formula (II), R ³ CH(SO ₃ M ¹ )COOR ⁴ (II) (In the general formula (II), R ³ is a hydrocarbon group with 8 to 18 carbons, R ⁴ is a hydrocarbon group with 1 to 6 carbons, and M ¹ is a counter ion). [39] The raw material feather cleaning liquid according to any one of [21] to [38], wherein the polyoxyalkylene alkyl ether sulfate is a compound represented by the following general formula (III), R ^5- O-[(EO) _s /(PO) _t ]-SO ₃ M ² …(III) (In the general formula (III), R ⁵ is a linear or branched alkyl group with 10 to 20 carbons or carbon A straight or branched alkenyl group with a number of 10-20, EO is oxyethylene, PO is oxypropylene, s represents the average number of repetitions of EO, which is a number below 5, and t represents the average number of repetitions of PO , Is a number less than 1, and M ² is a relative ion; where s and t will not be 0 at the same time). [40] The cleaning liquid for raw feathers according to any one of [21] to [39], wherein the olefin sulfonate is a compound represented by the following general formula (IV) and represented by the following general formula (V) At least one of the compounds, R ⁶ -CH=CH(CH ₂ ) _x -SO ₃ M ³ … (IV) (In the general formula (IV), R ⁶ is a straight-chain alkyl group with 9 to 15 carbons or A branched alkyl group or a straight or branched chain alkenyl group with 9 to 15 carbons, x is a number less than 5, and M ³ is a relative ion) R ⁷ -CH(OH)-(CH ₂ ) _y -SO ₃ M ⁴ …(V) (In the general formula (V), R ⁷ is a linear or branched alkyl group having 9 to 15 carbons or a linear or branched alkenyl group having 9 to 15 carbons, y Is a number from 1 to 6, and M ⁴ is a relative ion). [41] The cleaning solution for raw feathers according to any one of [21] to [40], which is used when cleaning raw feathers at a bath ratio of 20 to 50 times. [Effects of the invention]

According to the present invention, it is possible to provide a detergent for raw feathers and a detergent for raw feathers, which have high cleaning power, can save water, and can obtain high-quality feathers at a high yield.

Hereinafter, the present invention will be described in detail. In addition, in the present invention, the "raw feather" refers to feathers before washing, which become the raw materials of feathers used in feather products such as down jackets and duvets. In addition, in this specification, "hard water" refers to water with a U.S. hardness of 120 mg/L or more, and "soft water" refers to water with a U.S. hardness of less than 120 mg/L. "U.S. Hardness" is expressed in mg/L (=g/cm ³ ) as the unit of the value obtained by converting the total concentration of calcium salt and magnesium salt in water (total hardness) into the concentration of calcium carbonate. In addition, in this specification, the term "high-quality feathers" refers to feathers that have high transparency (cleanliness) and moderately removed fat and oil components. Specifically, the so-called "high perspective" means that the perspective (cleanliness) of water after washing feathers is 500 mm or more in accordance with the Japanese Industrial Standards (JIS) L 1903. The higher the perspective, the less dirt remaining on the feathers, and the higher the quality of the feathers. In addition, the term "appropriately remove oil and fat components" means that the fat and oil components of feathers measured in accordance with JIS L 1903 are 0.5% by mass to 1.0% by mass. If it is less than 0.5% by mass, the feathers will be dry and frizzy, and the down power (volume per 1 g of feathers (cm ³ /g)) or the feel will decrease. If the fat and oil component exceeds 1.0% by mass, an odor derived from the fat and oil component is generated, or the bulkiness is reduced.

"Detergent for raw feathers" The detergent for raw feathers of the present invention (hereinafter, also simply referred to as "detergent") is a composition containing the components (A), (B), and (C) shown below. The detergent may contain one or more of (D) components and optional components shown below. The detergent may be liquid or powder, preferably liquid. The liquid detergent is also specifically called "liquid detergent". In addition, each component may be a form in which each component is added to the cleaning liquid without mixing in advance.

<(A) component> The (A) component is one or more nonionic surfactants selected from the compounds represented by the following general formula (I) (hereinafter also referred to as "compound (a)"). (A) The component is a component that mainly acts on the oil and fat components attached to the raw feather, and is also a component that easily reaches the inside of the raw feather. Since the detergent contains the component (A), it goes without saying that soft water is used for the washing of raw feathers, but hard water can also be used to remove dirt inside the raw feathers. Therefore, the oil and fat components of the raw feathers can be removed to the target level, and the quality of the feathers can be improved. R ¹ -X-[(EO) _m /(PO) _n ]-R ² …(I) (In the general formula (I), R ¹ is a linear or branched hydrocarbon group with 8 to 20 carbons, and X is A divalent linking group, R ² is a hydrogen atom, an alkyl group with 1 to 6 carbons or an alkenyl group with 2 to 6 carbons, EO is oxyethylene, PO is oxypropylene, and m represents the average repeating number of EO , Is a number from 3 to 30, n represents the average repeating number of PO, and is a number from 0 to 6)

The hydrocarbon group of R ¹ may or may not have an unsaturated bond. Hydrocarbon group of R ¹ on adjacent carbon atoms and X may be a carbon atom, two carbon atoms may also be, also to three carbon atoms. When the hydrocarbon group is linear, the carbon atom adjacent to X is preferably a secondary carbon atom, and such a hydrocarbon group is also referred to as a "linear secondary hydrocarbon group". When the hydrocarbon group is branched, the carbon atom adjacent to X is preferably a primary carbon atom, and such a hydrocarbon group is also referred to as a "branched primary hydrocarbon group". R 8 is a carbon number of ¹ to 20, to further improve the detergency viewpoint, preferably 10 to 18, more preferably 10 to 14. As R ¹ , from the viewpoint that the component (A) easily reaches the inside of the raw feathers in a short time even at low temperatures, it is preferably a linear secondary hydrocarbon group, a branched primary hydrocarbon group, and more preferably a linear secondary hydrocarbon group. Alkyl, branched primary alkyl.

X is a divalent linking group, and examples thereof include -O- (oxygen atom), -COO-, -CONH-, and the like. As X, -O- is preferred. The carbon number of the alkyl group in R ² is 1-6, preferably 1-3. The carbon number of the alkenyl group in R ² is 2-6, preferably 2-3. As R ² , a hydrogen atom and an alkyl group having 1 to 3 carbon atoms are preferred, a hydrogen atom and a methyl group are more preferred, and a hydrogen atom is still more preferred.

m represents the average repeating number of EO (oxyethylene ethylene), and is a number from 3 to 30. From the viewpoint of further improvement in detergency, m is preferably 3-15. In particular, a high cleaning effect can be obtained even if the number of washing steps is reduced, and the liquid stability of the detergent at low temperatures when the detergent is a liquid (hereinafter also referred to as "low temperature liquid stability") From the viewpoint of improvement, m is more preferably 5-11. n represents the average repeating number of PO (oxypropylene), and is a number of 0-6, preferably 0-3. When n is not 0, that is, when the compound (a) has both EO and PO, EO and PO may be added in a block form, or EO and PO may be added in a random form. In the aforementioned [(EO) _m /(PO) _n ], PO can be bonded to "R ² ", and EO can also be bonded to "R ² ".

As the compound (a), it is preferable that R ¹ in the general formula (I) is a linear secondary hydrocarbon group or a branched primary hydrocarbon group, X is -O- or -COO-, and R ² is a hydrogen atom or a carbon number of 1 to The alkyl group of 3, the compound in which m is 3-15, and n is 0-3. Among them, it is particularly preferred that R ¹ in the general formula (I) is a linear secondary hydrocarbon group or a branched primary hydrocarbon group, X is -O-, R ² is a hydrogen atom, m is 5-11, and n is 0. .

Compound (a) can be obtained by adding ethylene oxide and optionally propylene oxide to alcohols with 8 to 20 carbons, alkyl esters of fatty acids with 8 to 20 carbons, or fatty acids with 8 to 20 carbons. obtain. As the compound (a), commercially available products may also be used.

(A) A component may be used individually by 1 type, and may use 2 or more types together. In particular, if two or more types of (A) components with different average repetition numbers of EO are used in combination, the (A) component will more easily reach the inside of the raw feathers, and the cleaning power will be further improved. In addition, the low temperature liquid stability of the detergent is also improved.

Relative to the total mass of the detergent, the content of component (A) is preferably 9 mass% to 55% by mass, more preferably 15 mass% to 55% by mass, further preferably 15 mass% to 50 mass%, particularly preferred It is 20% by mass to 38% by mass, most preferably 20% by mass to 30% by mass. If the content of the component (A) is more than the lower limit, the dirt on the raw feathers can be sufficiently removed, and high-quality feathers can be obtained. When the content of the component (A) is less than or equal to the upper limit, when the detergent is a liquid, the low-temperature liquid stability is improved. In addition, the liquid stability of the detergent at high temperatures (hereinafter also referred to as "high-temperature liquid stability") is also improved. Furthermore, the detergent is hard to thicken, and the workability can be maintained well.

＜(B) component＞ (B) The component is one or more anionic surfactants selected from α-sulfo fatty acid alkyl ester salts, polyoxyalkylene alkyl ether sulfates, and olefin sulfonates. The specific anionic surfactant as the component (B) is a component that is less likely to react with calcium ions in water than other anionic surfactants. Since the detergent contains the component (B), it goes without saying that soft water is used for the washing of raw feathers, and a high detergency can be exhibited even when hard water is used. In addition, when the detergent is a liquid, the low-temperature liquid stability is improved. Furthermore, linear alkylbenzene sulfonic acid or its salt, which is an example of an anionic surfactant, easily reacts with calcium ions in water to form a complex. This complex adheres to the surface of the raw feathers, and the perspective is reduced.

The α-sulfofatty acid alkyl ester salt (fatty acid alkyl ester sulfonate) is preferably a compound represented by the following general formula (II) (hereinafter, also referred to as "compound (b1)"). R ³ CH(SO ₃ M ¹ )COOR ⁴ … (II) (In the general formula (II), R ³ is a hydrocarbon group with 8 to 18 carbons, R ⁴ is a hydrocarbon group with 1 to 6 carbons, and M ¹ is a counter ion )

The hydrocarbon group of R ³ may be linear or branched, and may include a cyclic structure. In addition, the hydrocarbon group may or may not have an unsaturated bond. The carbon number of R ³ is 8-18. That is, the carbon number of the fatty acid residue which the compound (b1) has is 10-20. The fatty acid residue refers to the acyl moiety. The carbon number of R ³ is preferably 10-16. That is, it is preferable that the carbon number of the fatty acid residue which compound (b1) has is 12-18. R ^{3 is} preferably an aliphatic hydrocarbon group, more preferably a linear alkyl group or a branched alkyl group or a linear alkenyl group or a branched alkenyl group, and still more preferably a linear alkyl group or a linear alkenyl group.

The hydrocarbon group of R ⁴ may be linear or branched, and may include a cyclic structure. In addition, the hydrocarbon group may or may not have an unsaturated bond. The carbon number of R ⁴ is 1-6, preferably 1-3. R ^{4 is} preferably an aliphatic hydrocarbon group, more preferably a linear alkyl group or a branched alkyl group or a linear alkenyl group or a branched alkenyl group, and still more preferably a linear alkyl group or a branched alkyl group. In particular, from the viewpoint of further improvement in detergency, R ^{4 is} preferably methyl, ethyl, n-propyl, or isopropyl, preferably methyl, ethyl, or n-propyl, particularly preferred For methyl.

The counter ion of M ¹ is preferably one that can form a water-soluble salt together with R ³ CH(COOR ⁴ )SO ₃ ^- , and examples thereof include alkali metal ions, protonated amines, and ammonium ions. As the alkali metal that can be the counter ion, sodium or the like can be cited. Examples of amines that can become the counter ion include primary to tertiary amines. The total carbon number of the amine is preferably 1-6. In addition, the amine may have a hydroxyl group. In terms of improved solubility of the compound (b1) with respect to water, the amine preferably has a hydroxyl group. Examples of the amine having a hydroxyl group include alkanolamine, and the carbon number of the alkanol group is preferably 1-3. Examples of alkanolamines include monoethanolamine, diethanolamine, and triethanolamine. As M ¹ , an alkali metal ion is preferable, and sodium ion is particularly preferable.

The polyoxyalkylene alkyl ether sulfate is preferably a compound represented by the following general formula (III) (hereinafter, also referred to as "compound (b2)"). R ⁵ -O-[(EO) _s /(PO) _t ]-SO ₃ M ² …(III) (In the general formula (III), R ⁵ is a linear or branched alkyl group having 10 to 20 carbon atoms Group or linear or branched alkenyl group with 10 to 20 carbons, EO is oxyethylene group, PO is oxypropylene group, s represents the average repeating number of EO, which is a number less than 5, and t represents PO The average number of repetitions is a number less than 1, and M ² is the relative ion; among them, s and t will not be 0 at the same time)

The alkyl group and alkenyl group of R ⁵ may each have an unsaturated bond or may not have an unsaturated bond. The carbon number of R ⁵ is 10-20, preferably 10-14, more preferably 12-14.

s represents the average repeating number of EO (oxyethylene ethylene), and is a number of 5 or less. From the viewpoint of further improvement in detergency, s is preferably 1 to 5, and more preferably 3. t represents the average number of repetitions of PO (oxypropylene), and is a number less than 1, preferably 0. When t is not 0, that is, when the compound (b2) has both EO and PO, EO and PO may be added in a block form, or EO and PO may be added randomly. In the aforementioned [(EO) _s /(PO) _t ], PO can be bonded to "SO ₃ M ² ", and EO can also be bonded to "SO ₃ M ² ". M ² is the same as M ¹ in the general formula (II).

Examples of the olefin sulfonate include α-olefin sulfonate and internal olefin sulfonate (a sulfonate having a double bond inside the olefin chain but not at the end), and α-olefin sulfonate is preferred. The α-olefin sulfonate is preferably a compound represented by the following general formula (IV) (hereinafter, also referred to as "compound (b3)"), and a compound represented by the following general formula (V) (hereinafter, Also called "compound (b4)"), a mixture of compound (b3) and compound (b4). R ⁶ -CH=CH(CH ₂ ) _x -SO ₃ M ³ …(IV) (In the general formula (IV), R ⁶ is a straight or branched chain alkyl group having 9-15 carbon atoms or 9 carbon atoms ～15 linear or branched alkenyl, x is a number less than 5, M ³ is the counter ion) R ⁷ -CH(OH)-(CH ₂ ) _y -SO ₃ M ⁴ … (V) (pass In formula (V), R ⁷ is a linear or branched alkyl group having 9 to 15 carbons or a linear or branched alkenyl group having 9 to 15 carbons, y is the number of 1 to 6, M ⁴ is the relative ion)

The alkyl group and alkenyl group of R ⁶ may each have an unsaturated bond, or may not have an unsaturated bond. The alkyl group and alkenyl group of R ⁷ may each have an unsaturated bond, or may not have an unsaturated bond. The carbon numbers of R ⁶ and R ⁷ are 9-15, and preferably 10-12. As R ⁶ and R ⁷ , each is preferably an alkyl group.

x is a number of 5 or less, preferably 1-5. y is a number from 1 to 6, preferably 2 to 6. M ³ and R ⁴ are the same as M ¹ in the general formula (II), respectively.

Among these anionic surfactants, from the viewpoint of further improvement in detergency, α-sulfo fatty acid alkyl ester salts and polyoxyalkylene alkyl ether sulfates are preferred. For cleaning in hard water From the viewpoint of further improvement in power, α-sulfo fatty acid alkyl ester salt is more preferred. (B) A component may be used individually by 1 type, and may use 2 or more types together.

The content of the component (B) relative to the total mass of the detergent is preferably 0.5% by mass to 10% by mass, more preferably 0.5% by mass to 5% by mass, and still more preferably 1.5% by mass to 3% by mass. If the content of the component (B) is greater than or equal to the lower limit, when the detergent is a liquid, the high-temperature liquid stability improves. When the content of the (B) component is below the upper limit, the penetration of the (B) component into the raw feathers is good, and the detergency is further improved. In addition, when the detergent is a liquid, the low-temperature liquid stability is improved. When the content of the component (B) is within the above range, the balance between detergency and liquid stability is excellent.

The mass ratio (A/B ratio) represented by (A) component/(B) component is preferably from 3 to 40, more preferably from 4 to 35, further preferably from 7 to 20, and particularly preferably from 7 to 15. If the A/B ratio is greater than or equal to the lower limit, the detergency is further improved. In addition, when the detergent is a liquid, the low-temperature liquid stability is improved. If the A/B ratio is less than or equal to the above upper limit, when the detergent is a liquid, the detergent can be prevented from being stratified or cloudy at room temperature (25°C). In addition, the stability of high-temperature liquids is improved. When the A/B ratio is within the above range, the balance between detergency and liquid stability is excellent.

＜(C) Ingredient＞ (C) The component is a chelating agent (also called a polyvalent metal ion chelating agent). Since the detergent contains the component (C), the component (C) acts on the metal ions present in the protein dirt attached to the raw feathers, and the cleaning power is improved. In addition, component (C) also acts on calcium ions in the water, so the reaction between component (B) and calcium ions can be suppressed. Therefore, it goes without saying that soft water is used for the washing of raw feathers, and even when hard water is used, the interface activity function of the component (B) can be fully exhibited, and high washing power can be obtained.

As (C)component, amino carboxylic acid or its salt, a polymer chelating agent, etc. are mentioned. Examples of amino carboxylic acids or their salts include methyl glycine diacetic acid (MGDA), L-glutamic acid diacetic acid (GLDA), diethylene glycol Triamine pentaacetic acid (diethylenetriamine pentaacetic acid, DTPA), ethylenediaminetetraacetic acid, ethylenediamine disuccinic acid (EDDS), 3-hydroxy-2,2'-imino disuccinic acid (3-hydroxy -2,2'-iminodisuccinic acid, HIDS), L-aspartic acid-N,N-diacetic acid and their salts, etc. Examples of polymer chelating agents include: polyacrylic acid, acrylic acid/maleic acid copolymer, maleic acid/isobutylene copolymer, maleic acid/olefin copolymer, maleic acid/methyl vinyl ether copolymer, and the like Salt etc. Examples of amino carboxylic acids or carboxylic acid salts include alkali metal salts such as sodium and potassium; alkaline earth metal salts such as magnesium; and alkanolamine salts such as monoethanolamine salts and diethanolamine salts.

Among these chelating agents, from the viewpoint of further improvement of detergency, methylglycine diacetic acid (MGDA), ethylenediamine tetraacetic acid (EDTA), 3-hydroxy-2, 2'-imino disuccinic acid (HIDS) and their salts, more preferably methylglycine diacetic acid (MGDA), 3-hydroxy-2,2'-imino disuccinic acid (HIDS) And these salts. (C) A component may be used individually by 1 type, and may use 2 or more types together.

The content of the component (C) relative to the total mass of the detergent is preferably 0.1% by mass to 3% by mass, more preferably 0.5% by mass to 2% by mass, and still more preferably 0.5% by mass to 1.5% by mass. If the content of the component (C) is within the above range, the detergency is further improved. In addition, when the detergent is a liquid, the high-temperature liquid stability is improved.

＜（D）Component＞ (D) The component is water. (D) The component can be hard water or soft water. Relative to the total mass of the detergent, the content of the component (D) is preferably 35% by mass to 90% by mass, more preferably 45% by mass to 85% by mass, and still more preferably 60% by mass to 85% by mass. If the content of the component (D) is within the above range, when the detergent is a liquid, high-temperature liquid stability can be ensured, and workability can be maintained well.

＜Optional ingredients＞ In addition to the (A) component, (B) component, (C) component, and (D) component, the detergent may contain a component known in the detergent field as an optional component. Examples of optional components include: organic solvents, nonionic surfactants other than component (A), anionic surfactants other than component (B), cationic surfactants, amphoteric surfactants, enzymes, pH Regulators, antioxidants, preservatives or antibacterial agents, hydrotropes, fragrances, extracts, etc.

Examples of organic solvents include monohydric alcohols with 2 to 4 carbon atoms such as ethanol, 1-propanol, 2-propanol, and 1-butanol; p-butanol, hexanol, 2-ethylhexanol, butyl Diethylene glycol, butyl glycol, and other alcohols are glycol ether solvents in which at least one of ethylene oxide and propylene oxide is added. Among these, in terms of improving liquid stability or liquid fluidity, glycol ether solvents are preferred, and p-butyl diethylene glycol or butyl glycol is more preferably added with 2 moles of propylene oxide. As a result, butyl triethylene glycol, butyl glycol, hexyl diethylene glycol, hexyl glycol, etc.

Examples of the pH adjuster include inorganic acids, sodium hydroxide, potassium hydroxide, alkanolamine, ammonia, and the like. Examples of inorganic acids include citric acid, malic acid, oxalic acid, tartaric acid, fumaric acid, glutamic acid, lactic acid, salicylic acid, sulfosalicylic acid, phthalic acid, maleic acid, and malonic acid , Benzoic acid, formic acid, acetic acid, hydrochloric acid, sulfuric acid, phosphoric acid, etc. One kind of pH adjusting agent may be used alone, or two or more kinds may be used in combination.

The content of the optional component is not particularly limited, and from the viewpoint of less likely to affect the detergency, relative to the total mass of the detergent, it is preferably 10% by mass or less, and more preferably 5% by mass or less. Furthermore, as described above, linear alkylbenzene sulfonic acid or its salt easily reacts with calcium ions in water to form a complex, and this complex sometimes adheres to the surface of raw feathers. Therefore, it is preferable that the detergent does not substantially contain an anionic surfactant other than the (B) component. Here, the term "not substantially contained" means that the content of the anionic surfactant other than the component (B) is less than 0.01% by mass relative to the total mass of the detergent. In addition, the total amount of all components constituting the detergent does not exceed 100% by mass.

＜pH value＞ The pH value at 25°C of the liquid detergent is preferably 5-9, more preferably 6-8. If the pH of the liquid detergent is greater than or equal to the above lower limit, the washing machine used for washing the raw feathers is excellent in corrosiveness. If the pH of the liquid detergent is less than the upper limit, the raw feathers can be washed while suppressing damage to the raw feathers. Here, the pH value of the liquid detergent is a value measured by a method based on JIS K 3362-1998 after adjusting the temperature of the liquid detergent to 25°C. The pH adjuster can be used for adjusting the pH of the liquid detergent.

＜Manufacturing method＞ The detergent can be manufactured by a previously known method. The liquid detergent can be obtained by mixing (A) component, (B) component, (C) component, and (D) component with optional components as needed. As a method for producing a powder detergent, for example, if it is in a powdery granular dosage form, it can be exemplified by the dry blending method of powder mixing each raw material other than water and an organic solvent, and The dry granulation method in which the powder raw material flows while granulating, the mixing and granulation method in which the powder raw material is flowed while spraying the liquid binder to granulate, and the raw material is kneaded and extruded by an extruder. There are granulation methods, pulverization granulation methods in which raw materials are kneaded and crushed, and spray drying methods in which raw materials are sprayed and dried.

＜How to use detergent＞ The detergent is used to clean raw feathers such as ducks and geese. When cleaning the raw feathers, a cleaning solution obtained by diluting a cleaning agent with water is usually used. The amount of detergent used varies according to the origin or type of raw feathers (duck, goose, etc.), by taking the content of (A) component in the detergent from 0.01% to 0.25% by mass, and the content of component (B) When the content is 0.002% by mass to 0.050% by mass, and the content of the component (C) is 0.001% by mass to 0.010% by mass, the detergent is diluted with water and used, and high detergency is easily obtained.

The temperature (washing temperature) at the time of washing the raw feathers (washing step) is preferably from room temperature to 60°C. The higher the washing temperature, the more sufficient washing can be performed. Here, "room temperature" is 25°C. After washing the raw feathers, a step (washing step) in which washing treatment and dehydration treatment are combined as a set is performed. The number of washing steps can be adjusted according to the degree of dirt on the raw feathers. The more dirt, the more washing steps increase. However, the detergent of the present invention has a high detergency, so the number of washing steps can be reduced compared to the previous one.

＜Action effect＞ The detergent of the present invention described above contains the components (A), (B), and (C). Therefore, it is needless to say that soft water is used for the cleaning of raw feathers, but hard water is used. It can also exert high cleaning power under the condition. Therefore, even if the number of washing steps is reduced, high washing power can be obtained, so water can be saved and high-quality feathers can be obtained with high yield. Furthermore, if the detergent of the present invention is used, the number of washing steps can be reduced, so that the environmental load can be reduced by saving water, and the processing time can be shortened, so that the processing cost can be greatly reduced.

"Cleaning liquid for raw feathers" The cleaning liquid for raw feathers of the present invention (hereinafter also referred to as "cleaning liquid") is a composition containing the following components (A), (B), (C), and (D) . The cleaning liquid may contain one or more of the optional components shown below.

＜(A) component＞ (A) The component is one or more nonionic surfactants selected from the compounds represented by the general formula (I). The (A) component is the same as the (A) component exemplified in the description of the detergent before, and the description thereof is omitted. (A) A component may be used individually by 1 type, and may use 2 or more types together. In particular, if two or more types of (A) components are used in combination, the (A) component will more easily reach the inside of the raw feathers, and the cleaning power will be further improved. In addition, the low temperature liquid stability of the cleaning solution is also improved.

Relative to the total mass of the cleaning solution, the content of component (A) is preferably 0.01% by mass to 0.25% by mass, more preferably 0.03% by mass to 0.20% by mass, still more preferably 0.04% by mass to 0.15% by mass, particularly preferred It is 0.05% by mass to 0.15% by mass. If the content of the component (A) is more than the lower limit, the dirt on the raw feathers can be sufficiently removed, and high-quality feathers can be obtained. If the content of the component (A) is below the upper limit, the low-temperature liquid stability and high-temperature liquid stability of the cleaning liquid are improved. Furthermore, the cleaning liquid is hard to thicken, and workability can be maintained well.

＜(B) component＞ (B) The component is one or more anionic surfactants selected from α-sulfo fatty acid alkyl ester salts, polyoxyalkylene alkyl ether sulfates, and olefin sulfonates. The component (B) is the same as the component (B) exemplified in the description of the detergent before, and its description is omitted. (B) A component may be used individually by 1 type, and may use 2 or more types together.

The content of the component (B) relative to the total mass of the cleaning liquid is preferably 0.002% by mass to 0.050% by mass, more preferably 0.002% by mass to 0.015% by mass, and still more preferably 0.003% by mass to 0.010% by mass. If the content of the component (B) is greater than or equal to the lower limit, the high-temperature liquid stability of the cleaning liquid improves. When the content of the (B) component is below the upper limit, the penetration of the (B) component into the raw feathers is good, and the detergency is further improved. In addition, the low-temperature liquid stability of the cleaning solution is improved. When the content of the component (B) is within the above range, the balance between detergency and liquid stability is excellent. In addition, the A/B ratio is preferably from 3 to 40, more preferably from 4 to 35, further preferably from 7 to 20, and particularly preferably from 7 to 15.

＜(C) Ingredient＞ (C) Component is chelating agent. The component (C) is the same as the component (C) exemplified in the description of the detergent before, and its description is omitted. (C) A component may be used individually by 1 type, and may use 2 or more types together.

The content of the component (C) relative to the total mass of the cleaning liquid is preferably 0.001% by mass to 0.010% by mass, more preferably 0.002% by mass to 0.008% by mass, and still more preferably 0.003% by mass to 0.008% by mass. If the content of the component (C) is within the above range, the detergency is further improved. In addition, the high-temperature liquid stability of the cleaning liquid is improved.

＜（D）Component＞ (D) The component is water. (D) The component can be hard water or soft water. The content of the component (D) relative to the total mass of the cleaning liquid is preferably 99.0% by mass to 99.987% by mass, and more preferably 99.5% by mass to 99.96% by mass. If the content of the (D) component is within the above range, it is possible to achieve both an improvement in detergency and a reduction in the number of washing steps.

＜Optional ingredients＞ In addition to the (A) component, the (B) component, the (C) component, and the (D) component, the cleaning solution may contain a component known in the detergent field as an optional component. As an arbitrary component, the arbitrary component exemplified in the description of the detergent before can be mentioned.

The content of the optional component is not particularly limited, and from the viewpoint that it does not easily affect the detergency, it is preferably 0.05% by mass or less, and more preferably 0.03% by mass or less with respect to the total mass of the cleaning liquid. Furthermore, linear alkyl benzene sulfonic acid or its salt easily reacts with calcium ions in water to form a complex compound, and this complex compound may adhere to the surface of the raw feather. Therefore, it is preferable that the cleaning liquid does not substantially contain an anionic surfactant other than the (B) component. Here, "not substantially contained" means that the content of the anionic surfactant other than the component (B) is less than 0.01% by mass relative to the total mass of the cleaning liquid. In addition, the total amount of all components constituting the cleaning liquid does not exceed 100% by mass.

＜pH value＞ The pH of the washing liquid at 25°C is preferably 5-9, more preferably 6-8. If the pH of the cleaning liquid is equal to or higher than the lower limit, the cleaning machine used for cleaning the raw feathers is excellent in corrosiveness. If the pH of the cleaning solution is below the upper limit, the raw feathers can be cleaned while suppressing damage to the raw feathers. Here, the pH value of the cleaning liquid is a value measured by a method according to JIS K 3362-1998 after adjusting the temperature of the cleaning liquid to 25°C. For the adjustment of the pH of the cleaning liquid, the pH adjusting agent exemplified in the description of the cleaning agent can be used.

＜Manufacturing method＞ The cleaning solution can be produced by a conventionally known method. Specifically, it can be obtained by mixing (A) component, (B) component, (C) component, and (D) component with arbitrary components as needed. In addition, the detergent of the present invention may be prepared, and the obtained detergent may be diluted with water (component (D)) to prepare a detergent.

＜How to use detergent＞ The washing liquid is used for washing raw feathers of ducks and geese. When washing raw feathers, use the washing liquid directly. Although it also differs according to the origin or type of the raw feathers (duck, goose, etc.), the cleaning solution is preferably used at a bath ratio of 20 to 50 times when cleaning the raw feathers. Here, the "bath ratio" refers to the mass of the cleaning liquid relative to the mass of the raw feathers.

The washing temperature in the washing step is preferably room temperature to 60°C. The higher the washing temperature, the more sufficient washing can be performed. The number of washing steps performed after the washing step can be adjusted according to the degree of soiling of the raw feathers. The more soiled, the more the number of washing steps increases. However, the cleaning liquid of the present invention has a high cleaning power, so the number of washing steps can be reduced compared to the previous one.

＜Action effect＞ The cleaning solution of the present invention described above contains the above-mentioned (A) component, (B) component, (C) component, and (D) component, so it goes without saying that soft water is used for the cleaning of raw feathers , It also exhibits high cleaning power even when using hard water. Therefore, even if the number of washing steps is reduced, high washing power can be obtained, so water can be saved and high-quality feathers can be obtained with high yield. Furthermore, if the washing liquid of the present invention is used, the number of washing steps can be reduced, so that the environmental load can be reduced by saving water, and the processing time can be shortened, so that the processing cost can be greatly reduced. [Example]

Hereinafter, examples are shown to illustrate the present invention in detail, but the present invention is not limited by the following description.

"Use of raw materials" ＜(A) Ingredient and its comparison products＞ As the (A) component, the compounds (A-1 to A-7) shown in Table 1 were used, and as the comparative product ((A') component) of the (A) component, the compound (A'-) shown in Table 1 was used. 8). In addition, A-7 is manufactured by the synthesis method shown below.

[Table 1] Product name manufacturer General formula (I) R ¹ X m n R ² A-1 Leocol SC-50 Manufactured by Lion Specialty Chemicals Co., Ltd. Straight-chain secondary alkyl with 12 and 14 carbons -O- 5 0 H A-2 Leocol SC-70 Manufactured by Lion Specialty Chemicals Co., Ltd. Straight-chain secondary alkyl with 12 and 14 carbons -O- 7 0 H A-3 Lutensol TO 7 Made by BASF Branched primary alkyl with 13 carbons -O- 7 0 H A-4 Leocol SC-90 Manufactured by Lion Specialty Chemicals Co., Ltd. Straight-chain secondary alkyl with 12 and 14 carbons -O- 9 0 H A-5 Lutensol TO 12 Made by BASF Branched primary alkyl with 13 carbons -O- 12 0 H A-6 Lutensol TO 20 Made by BASF Branched primary alkyl with 13 carbons -O- 20 0 H A-7 - Synthetic Saturated and unsaturated straight chain alkyl with 18 carbons -COO- 10 0 CH ₃ A'-8 Leocol SC-400 Manufactured by Lion Specialty Chemicals Co., Ltd. Straight-chain secondary alkyl with 12 and 14 carbons -O- 40 0 H

(Synthesis method of A-7) Put a fatty acid methyl ester mixture with carbon number 18 (manufactured by Lion Specialty Chemicals Co., Ltd., trade name "Pastel M182") into a 4 L autoclave, 627 g, braised The calcined alumina-magnesia composite oxide (manufactured by Kyowa Chemical Industry Co., Ltd., trade name "Kyowaad (Kyowaad) 300") 2.5 g, 3.13 g glycerin, and 40% by mass potassium hydroxide (potassium hydroxide, KOH) 0.13 g, and nitrogen replacement in the autoclave was performed 5 times. After that, the temperature was raised to 180°C, the pressure in the autoclave was returned to normal pressure with nitrogen, and 932 g of ethylene oxide (1 mol equivalent to 10 mol of the fatty acid methyl ester mixture with 18 carbon atoms) was slowed down. Slowly introduce into the autoclave. After the introduction of ethylene oxide was completed, the pressure reached 0.26 MPa and decreased as the reaction progressed. After 30 minutes, the ethylene oxide addition reaction continued until the pressure was 0.13 MPa and stable. Furthermore, the obtained reaction product was filtered using diatomaceous earth to obtain the target A-7.

＜(B) Ingredients and comparison products＞ As the (B) component, the compounds (B-1 to B-3) shown in Table 2 were used, and as the comparative product ((B') component) of the (B) component, the compound (B'-) shown in Table 2 was used. 4).

[Table 2] Product name manufacturer Abbreviation Compound name B-1 MIZULAN FL-80 Made by Global Eco Chemicals Malaysia (Global Eco Chemicals Malaysia) MES Sodium salt of fatty acid methyl ester sulfonate with carbon number of 16 and 18 of fatty acid residue (R ³ = hydrocarbon group with carbon number of 14 and 16, R ⁴ = methyl, M ¹ = Na ion) B-2 Sunnol NL-1430 Manufactured by Lion Specialty Chemicals Co., Ltd. AES Polyoxyethylene alkyl ether sodium sulfate having an alkyl group with 12 to 14 carbons (R ⁵ = alkyl with 12 to 14 carbons, s=3, t=0, M ² =Na ion) B-3 Lipolan LB-440 Manufactured by Lion Specialty Chemicals Co., Ltd. AOS Sodium α-olefin sulfonate having an alkyl group with 14 carbons (compound (b3): R ⁶ = alkyl with 12 carbons, x=1, M ³ =Na ion; and compound (b4): R ⁷ = carbon Number 12 alkyl, y=2, M ⁴ = a mixture of Na ions) B'-4 Lipon LH-200 Manufactured by Lion Specialty Chemicals Co., Ltd. LAS Sodium linear alkyl benzene sulfonate having an alkyl group with 10 to 14 carbon atoms

＜(C) Ingredient＞ As the (C) component, the compounds (C-1 to C-3) shown in Table 3 were used.

[table 3] Product name manufacturer Abbreviation Compound name C-1 Trilon M Lq JP Made by BASF MGDA-3Na Trisodium Methylglycine Diacetate C-2 Dissolvine NA2 Manufactured by Lion Specialty Chemicals Co., Ltd. EDTA-2Na Disodium ethylenediaminetetraacetate C-3 Biodegradable chelating agent (HIDS) Made by Nippon Shokubai Co., Ltd. HIDS-Na Sodium 3-hydroxy-2,2'-imino disuccinate

<(D) component> As (D) component, use purified water (U.S. hardness: 0 mg/L) or hard water. In addition, as the hard water, calcium chloride (CaCl ₂ , manufactured by Kanto Chemical Co., Ltd., reagent "calcium chloride dihydrate") was used in terms of calcium carbonate (CaCO ₃ ) conversion to a concentration of 250 mg/L The method is dissolved in refined water.

＜Optional ingredients＞ As optional components, the organic solvent and pH adjuster shown below are used. ·Organic solvent: It is made by adding 2 moles of propylene oxide to butyl glycol (manufactured by Lion Specialty Chemicals Co., Ltd., trade name "Leosolb 703B"). ·PH adjuster: citric acid (manufactured by Showa Chemical Co., Ltd., trade name "citric acid (crystal) 32M").

"Example 1 to Example 13, Comparative Example 1 to Comparative Example 5" ＜Preparation of detergent＞ After mixing the components other than the pH adjuster with the composition shown in Table 4 to Table 6, the pH adjuster was added so that the pH of the detergent was 7 to obtain a liquid detergent.

＜Preparation of cleaning solution＞ Using hard water as the component (D), the previously obtained detergent was diluted 374 times to obtain a detergent. The washing liquid was used so that the mass of feathers was 30 times that of the raw material feathers. Specifically, in the case of washing 12 g of raw feathers, the usage amount of the washing liquid was 0.96 g, and the usage amount (addition amount) of hard water was 359.04 g. Measure the pH value of the cleaning solution. The results are shown in Table 4 to Table 6.

In addition, the blending amounts (mass %) in Tables 4 to 6 are purity conversion values. Ingredients that do not describe the blending amount in the table are not blended. The "appropriate amount" as the compounding amount of the pH adjuster is an amount required to adjust the pH value at 25° C. of the detergent of each example to 7. The "balance" as the blending amount of purified water refers to the remainder added so that the total of all the components contained in the detergent becomes 100% by mass. The "balance" as the amount of hard water blended is the amount required for the bath ratio when washing the raw feathers to be 30 times, specifically 359.04 g. In addition, "A/B ratio" is the mass ratio represented by (A) component/(B) component. "A'/B ratio" is the mass ratio represented by the (A') component/(B) component. "A/B' ratio" is the mass ratio represented by (A) component/(B') component. In addition, the "content" is the content (mass %) of each component relative to the total mass of the detergent or the detergent. Regarding the detergent or the cleaning liquid of each example, the cleaning power and liquid stability were evaluated by the following methods. The results are shown in Table 4 to Table 6.

＜Method of measuring pH value＞ The pH value of the cleaning agent and the cleaning liquid is measured as follows. Adjust the temperature of the detergent or detergent to 25°C, and measure the detergent or detergent in accordance with JIS K 3362-1998 using a glass electrode pH meter (manufactured by East Asia DKK Co., Ltd., product name "HM-30G") The pH value of the net solution.

＜Evaluation of detergency＞ (Measurement of perspective) As raw material feathers, WDD85 (white duck down 85%) produced in China is used. In a 1 L beaker, 12 g of raw feathers and a cleaning solution were added so that the bath ratio became 30 times. After that, the stirring blade was rotated at 100 rpm in a 45° C. water bath, and washing was performed for 40 minutes (washing step). After the washing step, the contents of the beaker (washed material) are transferred to a 150-mesh sieve. After the feathers are drained for 1 minute by their own weight, the feathers remaining on the sieve are returned to the 1 L beaker. Add 360 g of American hard water with 250 mg/L hardness to the beaker as washing water, wash for 2 minutes at a rotation speed of 100 rpm, and then transfer the washing to a 150-mesh sieve and drain for 1 minute (washing step ). By performing this washing step 7 or 12 times in total, washed feathers are obtained. Put the feathers after 7 or 12 washing steps in a centrifugal dehydrator. After dehydrating for 1 minute, loosen the feathers by hand, put the feathers in a 100 mesh stainless steel cage, and blow the wind of the hair dryer from the net for 10 minutes. This will dry the feathers.

Put 3 g of dried feathers and 300 mL of purified water into an Erlenmeyer flask, and shake the Erlenmeyer flask by hand until the feathers and purified water are fully fused. Make three sets of the same items. After that, a vibrator was used to vibrate for 45 minutes under the conditions of a vibration width of 40 mm and 150 times/min. After shaking, the suspension was filtered using a glass filter (G-1) to obtain a filtrate. Three sets of filtrate were mixed, and the transparency of the filtrate was measured in accordance with JIS L 1903. Specifically, the filtrate is filled up to a line of 1000 mm or more in a perspective meter that can evaluate at most 1000 mm. While checking the bottom edge of the perspective meter visually from the upper part of the perspective meter, drain the filtrate little by little from the lower part of the perspective meter, and the mark on the bottom side of the perspective meter can be visually confirmed × The height (mm) of the filtrate at the time of the mark was taken as the value of the transparency, and the detergency was evaluated according to the following evaluation criteria. The higher the perspective, the less dirt remaining on the feathers, which means that the cleaning power of the detergent and the cleaning liquid is better. ＜＜Evaluation Criteria＞＞ A: The perspective is more than 1000 mm. B: The perspective is 750 mm or more and less than 1000 mm. C: The perspective is 500 mm or more and less than 750 mm. D: The perspective is less than 500 mm.

(Determination of fat content) The washing step and the washing step are performed in the same manner as the measurement of the transparency, and thereafter, dehydration and drying are performed to obtain dried feathers. In addition, the washing step was performed 7 times in total. According to JIS L 1903, the fat content of feathers is measured. Specifically, for 3 g of dried feathers, using 150 mL of diethyl ether as a solvent, Soxhlet extraction was performed for 4 hours. For the extracted diethyl ether solution, the solvent was flung off using an evaporator, and the residual mass after drying at 105°C for 1 hour was measured. The oil and fat components (mass %) remaining on the feathers were calculated according to the following formula, and the detergency was evaluated according to the following evaluation criteria. The lower the oil content, the better the cleaning power of the detergent and the cleaning liquid. If the oil content is 0.5% to 1.0%, the oil content is moderately left in the feathers. Oil content (mass%) = residual mass (g) / mass of feathers measured before extraction (g) × 100 ＜＜Evaluation Criteria＞＞ A: The fat content is 0.5% by mass to 1.0% by mass. B: The fat content is less than 0.5% by mass, or more than 1.0% by mass.

＜Evaluation of liquid stability＞ (Evaluation of stability of high temperature liquid) Fill a transparent glass bottle with 100 g of detergent, close the lid and seal it. In this state, it was stored in a constant temperature bath at 40°C for 1 week. After storage for 1 week, the appearance of the detergent was visually observed, and the liquid stability at high temperature was evaluated according to the following evaluation criteria. ＜＜Evaluation Criteria＞＞ A: Even if stored at 40°C for 1 week, it is transparent and uniform. B: When stored at 40°C for 1 week, layer separation or white turbidity is seen.

(Evaluation of the stability of cryogenic liquids) Fill a transparent glass bottle with 100 g of detergent, close the lid and seal it. In this state, store in a thermostat at -5°C for 24 hours or 1 week. After storage for 24 hours or 1 week, the appearance of the detergent was visually observed, and the liquid stability at low temperatures was evaluated according to the following evaluation criteria. ＜＜Evaluation Criteria＞＞ A: Even if stored at -5°C for 1 week, it is transparent and uniform. B: When stored at -5°C for 24 hours, it was transparent and uniform, but when stored for 1 week, curing was observed. C: When stored at -5°C for 24 hours, curing is seen.

[Table 4] Example 1 2 3 4 5 6 Detergent (A) Ingredients [mass%] A-1 8 8 A-2 28 28 A-3 28 A-4 20 A-5 28 A-6 16 A-7 (A') Ingredients [mass%] A'-8 (B) Ingredients [mass%] B-1 2 2 2 2 2 B-2 2 B-3 (B') Ingredients [mass%] B'-4 (C) Ingredients [mass%] C-1 1.5 1.5 1.5 1.5 1.5 1.5 C-2 C-3 (D) Ingredients [mass%] Refined water balance Arbitrary ingredients [mass%] Organic solvents pH adjuster Right amount Total [mass%] 100 100 100 100 100 100 Content [mass%] (A) Ingredient 28 28 28 28 28 twenty four (B) Ingredients 2 2 2 2 2 2 (C) Ingredients 1.5 1.5 1.5 1.5 1.5 1.5 Mass ratio A/B ratio 14 14 14 14 14 12 pH value 7 7 7 7 7 7 Washing liquid Detergent Usage [g] 0.96 0.96 0.96 0.96 0.96 0.96 (D) Usage amount of ingredient (hard water) (g) Balance (359.04) Content [mass%] (A) Ingredient 0.075 0.075 0.075 0.075 0.075 0.064 (B) Ingredients 0.005 0.005 0.005 0.005 0.005 0.005 (C) Ingredients 0.004 0.004 0.004 0.004 0.004 0.004 Bath ratio [times] 30 30 30 30 30 30 pH value 7 7 7 7 7 7 Detergency Wash 7 times Perspective [mm] 1000 1000 1000 860 750 510 Evaluation A A A B B C 12 washes Perspective [mm] 1000 1000 1000 1000 810 550 Evaluation A A A A B C Wash 7 times Oil content [mass%] 0.7 0.8 0.8 0.7 1.0 1.0 Evaluation A A A A A A Evaluation of high temperature liquid stability A A A A A A Evaluation of cryogenic liquid stability A A A A B B

[table 5] Example 7 8 9 10 11 12 13 Detergent (A) Ingredients [mass%] A-1 30 A-2 28 20 28 18 28 15 A-3 A-4 20 A-5 A-6 A-7 10 (A') Ingredients [mass%] A'-8 (B) Ingredients [mass%] B-1 2 5 0.8 2 2 2 B-2 B-3 2 (B') Ingredients [mass%] B'-4 (C) Ingredients [mass%] C-1 1.5 1.5 1.5 1.5 0.6 C-2 1.5 C-3 1.5 (D) Ingredients [mass%] Refined water balance Arbitrary ingredients [mass%] Organic solvents 6 pH adjuster Right amount Total [mass%] 100 100 100 100 100 100 100 Content [mass%] (A) Ingredient 28 20 28 28 28 15 50 (B) Ingredients 2 5 0.8 2 2 2 2 (C) Ingredients 1.5 1.5 1.5 1.5 1.5 1.5 0.6 Mass ratio A/B ratio 14 4 35 14 14 7.5 25 pH value 7 7 7 7 7 7 7 Washing liquid Detergent Usage [g] 0.96 0.96 0.96 0.96 0.96 0.96 0.96 (D) Usage amount of ingredient (hard water) (g) Balance (359.04) Content [mass%] (A) Ingredient 0.075 0.053 0.075 0.075 0.075 0.040 0.133 (B) Ingredients 0.005 0.013 0.002 0.005 0.005 0.005 0.005 (C) Ingredients 0.004 0.004 0.004 0.004 0.004 0.004 0.002 Bath ratio [times] 30 30 30 30 30 30 30 pH value 7 7 7 7 7 7 7 Detergency Wash 7 times Perspective [mm] 1000 610 840 900 930 520 640 Evaluation A C B B B C C 12 washes Perspective [mm] 1000 780 950 1000 1000 750 860 Evaluation A B B A A B B Wash 7 times Oil content [mass%] 0.7 0.9 0.7 0.8 0.7 1.0 0.6 Evaluation A A A A A A A Evaluation of high temperature liquid stability A A A A A A A Evaluation of cryogenic liquid stability A B B B A A B

[Table 6] Comparative example 1 2 3 4 5 Detergent (A) Ingredients [mass%] A-1 A-2 28 28 28 A-3 A-4 A-5 A-6 A-7 (A') Ingredients [mass%] A'-8 28 (B) Ingredients [mass%] B-1 2 2 20 B-2 B-3 (B') Ingredients [mass%] B'-4 2 (C) Ingredients [mass%] C-1 1.5 1.5 1.5 1.5 C-2 C-3 (D) Ingredients [mass%] Refined water balance Arbitrary ingredients [mass%] Organic solvents pH adjuster Right amount Total [mass%] 100 100 100 100 100 Content [mass%] (A) or (A') component 28 28 28 28 0 (B) or (B') component 2 2 0 2 20 (C) Ingredients 1.5 1.5 1.5 0 1.5 Mass ratio A/B ratio or A'/B ratio or A/B' ratio 14 14 - 14 0 pH value 7 7 7 7 7 Washing liquid Detergent Usage [g] 0.96 0.96 0.96 0.96 0.96 (D) Usage amount of ingredient (hard water) [g] Balance (359.04) Content [mass%] (A) or (A') component 0.075 0.075 0.075 0.075 0 (B) or (B') component 0.005 0.005 0 0.005 0.053 (C) Ingredients 0.004 0.004 0.004 0 0.004 Bath ratio [times] 30 30 30 30 30 pH value 7 7 7 7 7 Detergency Wash 7 times Perspective [mm] 280 470 450 370 270 Evaluation D D D D D 12 washes Perspective [mm] 290 540 620 535 290 Evaluation D C C C D Wash 7 times Oil content [mass%] 1.3 0.8 0.9 1.0 2.0 Evaluation B A A A B Evaluation of high temperature liquid stability A A B A B Evaluation of cryogenic liquid stability C A A C C

As shown in Table 4 and Table 5, regarding the detergents and liquids obtained in each example, even if the raw feathers are washed with hard water, they can exhibit high cleaning power even if the number of washing steps is reduced. Up to 7 times, the perspective is also high, and high-quality feathers with moderate oil content can be obtained. In addition, the detergents obtained in each example are excellent in high temperature liquid stability and low temperature liquid stability.

On the other hand, as shown in Table 6, in the case of Comparative Example 1 where the compound (A'-8) in which m is 40 in the general formula (I) is used instead of the component (A), the detergent and washing The cleaning power of the clean liquid is low. Therefore, even if the washing steps are performed 12 times, the perspective is low, and the fat content of the feathers is high, and high-quality feathers cannot be obtained. In addition, the detergent obtained in Comparative Example 1 had poor low-temperature liquid stability. In the case of Comparative Example 2 in which LAS (B'-4) was used instead of the component (B), the cleaning power of the detergent and the detergent was low. Therefore, when the number of washing steps is 7 times, the perspective is low, and high-quality feathers cannot be obtained. In the case of Comparative Example 3 in which the component (B) was not used, the cleaning power of the detergent and the cleaning liquid was low. Therefore, when the number of washing steps is 7 times, the perspective is low, and high-quality feathers cannot be obtained. In addition, the detergent obtained in Comparative Example 3 had poor high-temperature liquid stability. In the case of Comparative Example 4 in which the component (C) was not used, the cleaning power of the detergent and the cleaning liquid was low. Therefore, when the number of washing steps is 7 times, the perspective is low, and high-quality feathers cannot be obtained. In addition, the detergent obtained in Comparative Example 4 had poor low-temperature liquid stability. In the case of Comparative Example 5 in which the component (A) was not used, the cleaning power of the detergent and the cleaning liquid was low. Therefore, even if the washing steps are performed 12 times, the perspective is low, and the fat content of the feathers is high, and high-quality feathers cannot be obtained. In addition, the detergent obtained in Comparative Example 5 had poor high-temperature liquid stability and low-temperature liquid stability. [Industrial availability]

According to the cleaning agent for raw feathers and the cleaning liquid for raw feathers of the present invention, the cleaning power is high, water can be saved, and high-quality feathers can be obtained at a high yield.

Claims (2)

A detergent for raw feathers, containing: (A) component: one or more nonionic surfactants selected from the compounds represented by the following general formula (I); (B) component: selected from α-sulfone One or more anionic surfactants among alkyl fatty acid alkyl ester salts, polyoxyalkylene alkyl ether sulfates and olefin sulfonates; and component (C): chelating agent, R ¹ -X-[(EO ) _m /(PO) _n ]-R ² …(I) In the general formula (I), R ¹ is a linear or branched hydrocarbon group with 8 to 20 carbons, X is a divalent linking group, and R ² is hydrogen Atom, C1-C6 alkyl group or C2-C6 alkenyl group, EO is oxyethylene group, PO is oxypropylene group, m represents the average repeating number of EO, which is a number from 3 to 30, n It represents the average number of repetitions of PO and is a number from 0 to 6. A cleaning liquid for raw feathers, containing: (A) component: one or more nonionic surfactants selected from the compounds represented by the following general formula (I); (B) component: selected from α-sulfone One or more anionic surfactants among alkyl fatty acid alkyl ester salts, polyoxyalkylene alkyl ether sulfates, and olefin sulfonates; (C) component: chelating agent; and (D) component: water, R ¹ -X-[(EO) _m /(PO) _n ]-R ² …(I) In the general formula (I), R ¹ is a linear or branched hydrocarbon group with 8 to 20 carbons, and X is a divalent The linking group, R ² is a hydrogen atom, an alkyl group with 1 to 6 carbons or an alkenyl group with 2 to 6 carbons, EO is oxyethylene, PO is oxypropylene, m represents the average repeating number of EO, which is A number from 3 to 30, n represents the average number of repetitions of PO, and a number from 0 to 6.