JPH09137379A - Softening and finishing agent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a softening and finishing agent which contains a mixture of quaternary ammonium salts having ester groups in the molecule as an essential component and gives a variety of fibers sufficient softening properties as well as antistatic properties. SOLUTION: This composition is obtained by mixing (A) a mixture of quaternary ammonium salts which are represented by the formula [R<1> and R<2> are each a straight chain 11-22C hydrocarbon; Q<1> and Q<2> are each a specific linking group bearing ester as an essential component; A<1> and A<2> are each a 1-3C alkylene and R<3> and R<4> are each a 1-3C (hydroxy)alkyl] so that the weight ratio of the saturated hydrocarbon to the unsaturatedhydrocarbon may be 100/0-32/68 with (B) a 12-32C (un)saturated alcohol or mixture thereof at a weight ratio of 100/10-100/100 or 100/17-100/90, preferably 100/30-100/80.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a softening finish composition, and more particularly to a softening finish containing a softening base containing an ester group in its molecule, which imparts excellent flexibility to various kinds of clothing. The present invention also relates to a soft finish composition having an excellent antistatic effect on chemical fibers.

[0002]

2. Description of the Related Art
Most of the products marketed as softeners for household use are mainly composed of quaternary ammonium salts having two long-chain alkyl groups in one molecule such as di (hardened tallowalkyl) dimethylammonium chloride. The composition was as follows. The reason for this is that the quaternary ammonium salt has a good softening effect on various fibers in a small amount. However, while the above quaternary ammonium salts have a remarkable softening effect on cotton, acrylic,
It is hard to say that the effect is sufficient for synthetic fibers such as polyester and polyamide.

[0003] In recent years, there has been an increasing worldwide concern about the impact on the environment, and a base material having excellent biodegradability and the like has also been desired for a soft finish. For example,
JP-A-1-162873, JP-A-3-90677
In Japanese Patent Application Laid-Open No. 4-108174, a softening agent containing a quaternary ammonium salt containing an ester group is described. The quaternary ammonium salt containing an ester group has good biodegradability and has little effect on the environment, but is insufficient in terms of the antistatic effect on the chemical fiber. Furthermore,
JP-A-4-333667 discloses a liquid softener containing a quaternary ammonium salt having a specific structure containing an unsaturated long-chain alkyl group and a saturated long-chain alkyl group in a specific weight ratio. However, although the softening agent of JP-A-4-333667 has a good effect of imparting water absorbency to cotton fibers, it is insufficient in terms of imparting flexibility to cotton products.

As described above, the quaternary ammonium salt is excellent in biodegradability, imparts excellent flexibility to both cotton fiber and chemical fiber, and has excellent antistatic property to chemical fiber. Those that can be given have not yet been found.

[0005]

Means for Solving the Problems The inventors of the present invention have made earnest studies on a softening finish having a quaternary ammonium salt containing an ester group as a main base, and as a result, have found that the softening finish contains an ester group and a saturated hydrocarbon group. It has been found that by adding a quaternary ammonium salt containing a saturated hydrocarbon group in a specific ratio and a long-chain alcohol in a specific ratio, a softening agent composition having an excellent antistatic effect on chemical fibers can be obtained. The invention was completed.

That is, in the present invention, the following components (a) and (b) are essential components, and (a) / (b) = 100/10
The softening agent composition is characterized by being 100 to 100 (weight ratio). Component (a): a mixture of a quaternary ammonium salt represented by the following general formula (I), wherein a saturated hydrocarbon group and an unsaturated hydrocarbon group in the hydrocarbon groups of R ¹ and R ^{2 in} the mixture. Weight ratio of saturated hydrocarbon group / unsaturated hydrocarbon group = 100 /
0-32 / 68 (weight ratio) mixture

[0007]

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[Wherein R ¹ and R ² may be the same or different and each represents a straight-chain hydrocarbon group having 11 to 22 carbon atoms. Q ¹ , Q ² : may be the same or different,

[0009]

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A ¹ , A ² : may be the same or different and each represents an alkylene group having 1 to 3 carbon atoms. R ^3, R ^4: may be the same or different, each represent an alkyl group or hydroxyalkyl group having 1 to 3 carbon atoms. Component (b): straight chain or branched chain saturated or unsaturated alcohol having 12 to 32 carbon atoms or a mixture thereof. Further, the present invention further comprises the following components (a) and (b): Component (c) and component (d) are essential components, and [(a) + (c) + (d)] / (b) = 100 / 10-
100/100 (weight ratio) and [(a) + (d)] /
(C) = 99.5 / 0.5 to 50/50 (weight ratio), and [(a)
+ (C)] / (d) = 99.5 / 0.5 to 70/30 (weight ratio), to provide a soft finish composition.

Component (c): one or more compounds selected from compounds represented by the following general formula (II-1) and compounds represented by the following general formula (II-2)

[0012]

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[In the formula, R ⁵ and R ⁹ may be the same or different and each represents a straight-chain saturated or unsaturated hydrocarbon group having 11 to 22 carbon atoms. R ⁶ , R ⁷ , R ⁸ , R ¹⁰ , R ¹¹ , R ¹² : may be the same or different,
Each represents an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group.

[0014]

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A ³ : represents an alkylene group having 1 to ³ carbon atoms. X ^-: represents an anion group. Component (d): straight or branched chain saturated or unsaturated fatty acid having 12 to 22 carbon atoms or a mixture thereof, the present invention will be described in detail below.

<Component (a)> The component (a) in the present invention is a mixture of a quaternary ammonium salt represented by the aforementioned general formula (I). Specifically, a mixture of quaternary ammonium salts containing at least one ester group (-COO- or -OCO-) in the molecule and containing two linear hydrocarbon groups having 11 to 22 carbon atoms. And the weight ratio of the whole saturated hydrocarbon group to the unsaturated hydrocarbon group of the long-chain hydrocarbon group (R ¹ , R ² ) in the mixture is such that saturated hydrocarbon group / unsaturated hydrocarbon group = 100.
/ 0 to 32/68 is a quaternary ammonium salt mixture. In such a quaternary ammonium salt mixture, a base having a saturated hydrocarbon group content of less than 32% by weight in a weight ratio of a saturated hydrocarbon group to an unsaturated hydrocarbon group has a significantly poorer softening effect on clothing.

In the present invention, the straight-chain long-chain hydrocarbon groups R ₁ and R ₂ in the general formula (I) are derived from naturally occurring fats and oils such as beef tallow, lard, palm oil, castor oil and olive oil. In general, it can be used as it is for the preparation of a quaternary ammonium salt mixture. Further, the saturated / unsaturated content of the hydrocarbon group can be adjusted by a known method such as partial hydrogenation or complete hydrogenation. The unsaturated hydrocarbon group includes a cis-isomer and a trans-isomer as isomers, and the cis-isomer / trans-isomer may be in the range of 97/3 to 20/80 (weight ratio).

Compounds of formula (I) (mixtures)
Examples of N-[(2-cured tallow-derived alkanoyloxy) ethyl] -N-[(3-cured tallow-derived alkanoylamino) propyl] -N, N-dimethylammonium chloride, N-[(2-cured Palm oil derived alkanoyloxy) ethyl] -N-[(3-hardened palm oil derived alkanoylamino) propyl] -N, N-dimethylammonium chloride, N-[(2-stearoyloxy)
Ethyl] -N-[(3-stearoylamino) propyl] -N, N-dimethylammonium chloride, N-
[(2-partially cured tallow-derived alkanoyloxy) ethyl] -N-[(3-partially cured tallow-derived alkanoylamino) propyl] -N, N-dimethylammonium chloride: Saturated / unsaturated in partially cured tallow-derived alkanoyl group = 70/30 (weight ratio), N, N-di [(2-alkanoyloxy) ethyl derived from 2-hardened tallow] -N, N-dimethylammonium chloride, N, N-di [(2-stearoyloxy) ethyl]- N, N-dimethylammonium chloride, N, N-di [(2-alkanoyloxy) ethyl derived from partially cured tallow] -N, N-dimethylammonium chloride: saturation / unsaturation in alkanoyl group derived from partially cured tallow = 55 / 45 (weight ratio), N, N-di [(2-alkanoyloxy) ethyl derived from partially cured tallow] -N, N-dimethylammonium chloride : Saturation / unsaturation in partially cured tallow-derived alkanoyl group = 50/50 (weight ratio), N, N-di [(2-partially cured tallow-derived alkanoyloxy) ethyl] -N- (2-hydroxyethyl)- N-methylammonium chloride: saturation / unsaturation in alkanoyl groups derived from partially cured tallow = 55/45 (weight ratio), N, N-di [(2
-Alkanoyloxy) ethyl derived from hardened tallow] -N-
(2-hydroxyethyl) -N-methylammonium chloride, N- (stearyloxycarbonylmethyl)-
N-[(2-stearoyloxy) ethyl] -N, N-
Dimethylammonium chloride, N-[(2-hardened tallow-derived alkanoyloxy) ethyl] -N-[(2-hardened tallow-derived alkanoylamino) ethyl] -N, N-dimethylammonium chloride, N- (hardened tallow-derived alkyloxy) Carbonylmethyl) -N-[(3-hardened tallow-derived alkanoylamino) propyl] -N, N-dimethylammonium chloride and the like. These may be used alone or in combination of two or more.

As the component (a), the following general formula (I-
The compound represented by 1) and / or the following general formula (I-2)
In a mixture consisting of compounds ^{represented, R 1 -1, R 2-1,} R 1-2, saturated hydrocarbon groups and unsaturated hydrocarbon group in the hydrocarbon group of R ^2-2 in the mixture As described above, the saturated hydrocarbon group / unsaturated hydrocarbon group = 100/0 to 32
/ 68 (weight ratio) is preferred.

[0020]

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[Wherein, R ^1-1 , R ^2-1 , R ^1-2 , R ^2-2 may be the same or different;
Each represents a linear hydrocarbon group having 11 to 21 carbon atoms. A ^1-1 , A ^2-1 , A ^1-2 , A ^2-2 : may be the same or different,
Each represents an alkylene group having 1 to 3 carbon atoms. R ^3-1 , R ^4-1 , R ^3-2 , R ^4-2 : may be the same or different,
Each represents an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group. X ^-: The meanings of the. ].

<Component (b)> The component (b) has 12 to 12 carbon atoms.
32 straight or branched chain saturated or unsaturated alcohols or mixtures thereof. Such long-chain alcohols are generally derived from natural fats and oils such as beef tallow, lard, palm oil, castor oil and olive oil. Also, the combination may be used. Preferred examples of the component (b) include stearyl alcohol, myristyl alcohol,
Palmityl alcohol, docosyl alcohol, lauryl alcohol, C ₃₆ Guerbet alcohol, C ₃₂ Guerbet alcohol, C ₂₈ Guerbet alcohol, C ₂₄ Guerbet alcohol,
Examples thereof include C ₂₀ Guerbet alcohol, C ₁₆ Guerbet alcohol, isotridecyl alcohol, oleyl alcohol, tallow-derived alcohol, palm oil-derived alcohol, and hardened tallow-derived alcohol.

Originally, in the di-long-chain type quaternary ammonium salt, those having a large proportion of saturated long-chain hydrocarbon groups, such as the quaternary ammonium salt of the component (a), have a soft performance for cotton fiber. Although good, the antistatic effect on the chemical fiber tends to decrease, but in the present invention (b)
The combined use of the components dramatically improves the antistatic effect on the chemical fibers.

<Component (c)> The component (c), as represented by the above general formulas (II-1) and (II-2), is a monocarboxylic acid having one long-chain hydrocarbon group containing a linking group. It is a long-chain type quaternary ammonium salt. The long-chain hydrocarbon groups R ⁵ and R ⁹ may be saturated or unsaturated. In the case of an unsaturated group, for example, when a double bond is contained, any ratio of cis-form / trans-form can be used. Examples of the component (c) include N-hardened beef tallow-derived alkyl-N, N, N-trimethylammonium chloride, N-[(3-hardened beef tallow-derived alkanoylamino) propyl] -N- (2-hydroxyethyl)-.
N, N-dimethylammonium chloride, N-[(3-
Alkanoylamino) propyl derived from hydrogenated palm oil]-
N- (2-hydroxyethyl) -N, N-dimethylammonium chloride, N-[(3-stearoylamino)
Propyl] -N- (2-hydroxyethyl) -N, N-
Dimethylammonium chloride, N-[(3-beef tallow-derived alkanoylamino) propyl] -N- (2-hydroxyethyl) -N, N-dimethylammonium chloride,
N-[(2-hardened tallow-derived alkanoyloxy) ethyl] -N- (2-hydroxyethyl) -N, N-dimethylammonium chloride, N-[(2-partially hardened tallow-derived alkanoyloxy) ethyl] -N- (2-Hydroxyethyl) -N, N-dimethylammonium chloride:
Saturation / unsaturation in partially cured beef tallow-derived alkanoyl groups = 55
/ 45 (weight ratio), N-[(2-stearoyloxy) ethyl] -N- (2-hydroxyethyl) -N, N-dimethylammonium chloride, N-[(2-partially hardened tallow-derived alkanoyloxy) ethyl ] -N, N-di (2-
Hydroxyethyl) -N-methylammonium chloride: Saturation / unsaturation in partially cured beef tallow-derived alkanoyl groups = 30/70 (weight ratio), N-[(2-cured tallow-derived alkanoylamino) ethyl] -N- [2 -Hydroxyethyl) -N, N-dimethylammonium chloride, N-
(Hardened beef tallow-derived alkyloxycarbonylmethyl) -N
Examples include-(2-hydroxyethyl) -N, N-dimethylammonium chloride. These may be used alone or in combination of two or more.

<Component (d)> The component (d) has 12 to 12 carbon atoms.
22 straight-chain or branched-chain saturated or unsaturated fatty acids or mixtures thereof. Such long chain fatty acids are tallow,
Those derived from natural fats and oils such as lard, palm oil, castor oil and olive oil are generally used. Also, the combination may be used. Preferred examples of the component (d) include hardened tallow fatty acid, hardened palm oil fatty acid, oleic acid, stearic acid, palmitic acid, myristic acid, tallow fatty acid, palm oil fatty acid and the like.

<Softening Finishing Composition> The softening finishing composition of the present invention essentially contains the above-mentioned components (a) and (b), but the components (c) and (d) are included. When it contains, the effect of imparting softness to clothing is further improved.

In the softener finishing composition containing the components (a) and (b), (a) / (b) = 100/10 to 100
/ 100 (weight ratio), and (a) / (b) = 100 / 17-
100/100 (weight ratio) is preferable, and (a) / (b) = 10
0/20 to 100/90 (weight ratio) is more preferable, and (a) / (b) = 100/30 to 100/80 (weight ratio) is more preferable.
It is. If the weight ratio of the two is out of this range, the object of the present invention cannot be achieved.

Further, in the soft finish composition containing the components (a) to (d), [(a) + (c) + (d)]
/ (B) = 100/10 to 100/100 (weight ratio), and [(a) + (d)] / (c) = 99.5 / 0.5 to 50/50 (weight ratio), and [(a) + (C)] / (d) = 99.5 / 0.5
70 to 30 (weight ratio). In this case, in particular, [(a)
+ (C) + (d)] / (b) = 100/17 to 100/100 (weight ratio) is preferable, 100/20 to 100/90 (weight ratio) is more preferable, 100/30 to 100/80 (Weight ratio) is the most preferable. Moreover, [(a) + (c)] / (d) = 99/1
~ 80/20 (weight ratio) and [(a) + (d)] / (c)
= 99/1 to 60/40 (weight ratio) is preferable, and [(a) +
(C)] / (d) = 98.5 / 1.5 to 85/15 (weight ratio), and [(a) + (d)] / (c) = 98/2 to 70/30 (weight ratio) are more preferable. , [(A) + (c)] / (d) = 98
/ 2-90 / 10 (weight ratio), and [(a) + (d)] /
(C) = 98 / 2-80 / 20 (weight ratio) is the most preferable.

[0029]

BEST MODE FOR CARRYING OUT THE INVENTION The softening agent composition of the present invention can be used as a liquid by dispersing the components (a) to (b) or components (a) to (d) in water. In that case, in order to improve the dispersibility in water of the liquid softening agent composition and the storage stability, a linear or branched saturated or unsaturated alcohol or amine alkylene oxide having 10 to 24 carbon atoms (the number of carbon atoms). 2-3) Addition product (addition mole number 5-150)
Mol) (hereinafter abbreviated as component (e)). The blending amount of the component (e) is 1 to 100% by weight based on the total amount of the components (a) to (b) or the components (a) to (d).
Is preferred.

Further, the liquid softener composition of the present invention comprises
In order to improve the storage stability, a compound having three or more active hydrogens is added with ethylene oxide and, if necessary, propyleneoxy and / or trimethylene oxide, and has a weight average molecular weight of 5,000 to 2,000,000, occupying in the molecular weight. A polyether compound having an oxyethylene group portion ratio of 55% by weight or more or a derivative thereof may be incorporated in the soft finish composition in an amount of 0.1 to 5% by weight.

In the liquid softener composition of the present invention, a fragrance, a dye, a silicone compound, an antibacterial agent, isopropyl alcohol, 8-acetylated sucrose-modified ethanol which is commonly used in clothing softeners. Solvents such as industrially modified ethanol, ethylene glycol, propylene glycol and the like, and water-soluble salts such as sodium chloride, ammonium chloride, calcium chloride, aluminum chloride, magnesium sulfate and sodium sulfate may be added.

Further, the liquid softener composition of the present invention comprises
0.2 to 10% by weight of an ester having 1 to 4 alkyl or alkenyl groups having 10 to 24 carbon atoms in the molecule can be blended in the composition.

[0033]

EFFECT OF THE INVENTION The softening agent of the present invention provides various fibers with sufficient flexibility and excellent antistatic properties. Moreover, since the quaternary ammonium salt which is a soft base has an ester group in the molecule, it is also excellent in biodegradability.

[0034]

Next, the present invention will be described in detail with reference to examples.
The present invention is not limited to these examples.

Examples 1 to 13 and Comparative Examples 1 to 8 Using the components (a) to (d) shown in Tables 1 to 4, the softening agent compositions shown in Tables 5 to 7 were prepared, The flexibility and antistatic properties of synthetic fibers were evaluated by the following methods. In addition, CaCl ₂ in the composition was used in both cases.
0.2 wt% was blended, and the balance was prepared as water.

[0036]

[Table 1]

[0037]

[Table 2]

[0038]

[Table 3]

[0039]

[Table 4]

<Performance evaluation> (1) Treatment method 2 kg of a commercially available cotton towel and 1 kg of an acrylic jersey were used at 3.5 °
Repeatedly wash (30 liter washing machine) 5 times with a commercially available detergent attack (Kao Corporation, registered trademark) in DH hard water,
After removing the fiber treatment agent attached to the fiber, 60 ml of the softening agent composition shown in Tables 5 to 7 was added and treated under stirring at 25 ° C. for 3 minutes. (2) Evaluation method After air-drying the cloth treated by the above method indoors, 25 ° C, 40% RH
In a constant temperature and humidity room for 24 hours. The softness and antistatic properties of the cotton and acrylic cloths were evaluated.
The evaluation of the flexibility was made by comparing a pair of cloth treated with 60 ml of a softening agent consisting of 6% by weight of N, N-di [(2-alkanoyloxy) ethyl] -N, N-dimethylammonium chloride. went. The evaluation criteria were as follows. +2: Softer than the control +1: Slightly softer than the control 0: Same as the control -1: Softer than the control -2: Softer than the control In addition, the antistatic property was evaluated by the Kaken Kyodai rotary static mixer. Was used to charge an acrylic cloth at an applied voltage of 10 kV and a target distance of 20 mm, and the half-life (second) after voltage removal was measured. The smaller this value, the better the antistatic performance.

[0041]

[Table 5]

[0042]

[Table 6]

[0043]

[Table 7]

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Junichi Inomaki 1334 Minato Minato, Wakayama, Wakayama Kao Research Institute

Claims (12)

[Claims] 1. A softening agent characterized in that the following components (a) and (b) are essential components and (a) / (b) = 100/10 to 100/100 (weight ratio). Composition. Component (a): a mixture of a quaternary ammonium salt represented by the following general formula (I), wherein a saturated hydrocarbon group and an unsaturated hydrocarbon group in the hydrocarbon groups of R ¹ and R ^{2 in} the mixture. Weight ratio of saturated hydrocarbon group / unsaturated hydrocarbon group = 100 /
A mixture of 0 to 32/68 (weight ratio) [Wherein, R ¹ and R ² may be the same or different and each represents a straight-chain hydrocarbon group having 11 to 22 carbon atoms. Q ¹ , Q ² : may be the same or different; A ¹ and A ² may be the same or different and each represent an alkylene group having 1 to 3 carbon atoms. R ^3, R ^4: may be the same or different, each represent an alkyl group or hydroxyalkyl group having 1 to 3 carbon atoms. Component (b): straight or branched chain saturated or unsaturated alcohol having 12 to 32 carbon atoms or a mixture thereof 2. (a) / (b) = 100/17 to 100/100
The softening agent composition according to claim 1, which is (weight ratio). 3. (a) / (b) = 100/20 to 100/90
The softening agent composition according to claim 1, which is (weight ratio). 4. (a) / (b) = 100/30 to 100/80
The softening agent composition according to claim 1, which is (weight ratio). 5. The following components (a) to (d) are essential components, and [(a) + (c) + (d)] / (b) = 100 /
10-100 / 100 (weight ratio) and [(a) + (d)] /
(C) = 99.5 / 0.5 to 50/50 (weight ratio), and [(a)
+ (C)] / (d) = 99.5 / 0.5 to 70/30 (weight ratio), a soft finish composition. Component (a): a mixture of a quaternary ammonium salt represented by the following general formula (I), wherein a saturated hydrocarbon group and an unsaturated hydrocarbon group in the hydrocarbon groups of R ¹ and R ^{2 in} the mixture. Weight ratio of saturated hydrocarbon group / unsaturated hydrocarbon group = 100 /
A mixture of 0 to 32/68 (weight ratio) [Wherein, R ¹ and R ² may be the same or different and each represents a straight-chain hydrocarbon group having 11 to 22 carbon atoms. Q ¹ , Q ² : may be the same or different, respectively A ¹ and A ² may be the same or different and each represent an alkylene group having 1 to 3 carbon atoms. R ^3, R ^4: may be the same or different, each represent an alkyl group or hydroxyalkyl group having 1 to 3 carbon atoms. Component (b): C12-32 straight or branched chain saturated or unsaturated alcohol or a mixture thereof (c) Component: a compound represented by the following general formula (II-1) and the following general formula (II-1) II-2) One or more compounds selected from the compounds represented by: [Wherein, R ⁵ and R ⁹ may be the same or different and each represents a straight-chain saturated or unsaturated hydrocarbon group having 11 to 22 carbon atoms. R ⁶ , R ⁷ , R ⁸ , R ¹⁰ , R ¹¹ , R ¹² : may be the same or different,
Each represents an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group. [Chemical 6] A ³ : represents an alkylene group having 1 to ³ carbon atoms. X ^-: represents an anion group. Component (d): straight or branched chain saturated or unsaturated fatty acid having 12 to 22 carbon atoms or a mixture thereof 6. [(a) + (c) + (d)] / (b) =
The softener composition according to claim 5, which is 100/17 to 100/100 (weight ratio). 7. [(a) + (c) + (d)] / (b) =
The softening agent composition according to claim 5, which is 100/20 to 100/90 (weight ratio). 8. [(a) + (c) + (d)] / (b) =
The softener composition according to claim 5, which is 100/30 to 100/80 (weight ratio). 9. [(a) + (c)] / (d) = 99/1 to
80/20 (weight ratio), and [(a) + (d)] / (c) =
It is 99 / 1-60 / 40 (weight ratio), The softening agent composition in any one of Claims 5-9. 10. [(a) + (c)] / (d) = 98.5 /
1.5 to 85/15 (weight ratio) and [(a) + (d)] /
(C) = 98/2 to 70/30 (weight ratio).
The softener composition according to any one of 1. 11. [(a) + (c)] / (d) = 98/2
~ 90/10 (weight ratio) and [(a) + (d)] / (c)
= 98/2 to 80/20 (weight ratio), The softening agent composition according to any one of claims 5 to 9. 12. The component (a) has the following general formula (I-1):
And / or a mixture of the compounds represented by the following general formula (I-2), wherein
In the hydrocarbon groups of R ^1-1 , R ^2-1 , R ^1-2 , and R ^2-2 , the weight ratio of the saturated hydrocarbon group to the unsaturated hydrocarbon group is
The softener composition according to claim 1, wherein the unsaturated hydrocarbon group = 100/0 to 32/68 (weight ratio). Embedded image [Wherein, R ^1-1 , R ^2-1 , R ^1-2 , R ^2-2 : may be the same or different,
Each represents a linear hydrocarbon group having 11 to 21 carbon atoms. A ^1-1 , A ^2-1 , A ^1-2 , A ^2-2 : may be the same or different,
Each represents an alkylene group having 1 to 3 carbon atoms. R ^3-1 , R ^4-1 , R ^3-2 , R ^4-2 : may be the same or different,
Each represents an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group. X ^-: The meanings of the. ]