JP3212173B2 - Softener composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a softener composition for imparting flexibility to fibers and clothing, and more particularly to a softness composition which is less susceptible to anionic surfactants caused by washing and has excellent flexibility.
Further, the present invention relates to a softener composition which does not impair the water absorption of clothing.

[0002]

2. Description of the Related Art Conventionally, di-long-chain alkyl-di-short-chain alkyl quaternary ammonium salts have been particularly frequently used as a softener for clothing in order to impart excellent flexibility, but these have high hydrophilicity. Therefore, when adsorbed on the surface of the fiber, it imparts flexibility and at the same time imparts water repellency, thereby deteriorating the water absorption of clothing. For this reason, attempts have been made to improve the water absorption of clothing using di-long-chain alkenyl-di-short-chain alkyl quaternary ammonium salts (JP-A-61-160482).

[0003] However, even with these techniques, flexibility,
The compatibility of water absorption is insufficient. Further, recently, the spread of fully automatic washing machines has been greatly expanded, and the amount of detergent-derived anionic surfactants brought into the flexible treatment has been increasing. Conventional quaternary ammonium salts have the problem that, when these anionic surfactants coexist, the effect of imparting flexibility tends to be reduced, and the water absorption of clothing tends to be impaired. Therefore, in a softening treatment using a fully automatic washing machine, development of a softening agent excellent in flexibility and water absorption is particularly desired.

[0004]

DISCLOSURE OF THE INVENTION The present invention provides a softener composition which is suitable for a fully automatic washing machine while imparting flexibility to clothing and at the same time, reducing the decrease in water absorption.

[0005]

The softener composition of the present invention is represented by the following formula (I) and has an iodine value of 30.
It is characterized by containing a neutralized dilong chain amine in the range of ~ 100.

[0006]

Embedded image (R₁, R_Two: Preferably having 16 to 25 carbon atoms including a splitting group
Or 18 to 23, ester group or amide group
Alkyl or alkenyl group (hereinafter referred to as hydro
R)_Three: An alkyl group having 1 to 4 carbon atoms or hydroxya
Ruquil group)

[0007]

DETAILED DESCRIPTION OF THE INVENTION In the present invention, a neutralized dilong chain amine having two long chain hydrocarbyl groups is used as a flexible base. The hydrocarbyl group is an alkyl group or an alkenyl group having 16 to 25 carbon atoms, which is split by an ester group or an amide group represented by the following formula (3).

[0008]

Embedded image (R ₄ : alkyl group or alkenyl group R ₅ : alkylene group or alkenylene group, provided that R ₄
The total number of carbon atoms of the R ₅ is 15 to 24, the carbon number of R ₅ is 1-4 are preferable)

Specific examples of the di-long chain amine of the soft base include:
The following chemical formulas (4), (5), and (6) (general formulas I-1 to I-10) can be given.

[0010]

Embedded image

[0011]

Embedded image

[0012]

Embedded image (R _3: an alkyl group or hydroxyalkyl group having 1 to 4 carbon atoms R _11: an alkyl group or alkenyl group, R ₁₁ and R
₁₂ R ₁₂ total carbon number of 15 to 24 of: alkylene group having 1 to 4 carbon atoms R _13: an alkyl group or alkenyl group, R ₁₃ and R
R ₁₄ total carbon number of ₁₄ is 15 to 24: alkylene group having 1 to 4 carbon atoms R _15: an alkyl group or alkenyl group, R ₁₅ and R
The total carbon number of ₁₂ is 15-24. R _16: an alkyl group or alkenyl group, R ₁₆ and R
The total carbon number of ₁₄ is 15-24. )

R ₁₁ CO- and R ₁₃ CO- in the above general formula are usually saturated higher fatty acids such as stearic acid and palmitic acid, unsaturated higher fatty acids such as oleic acid, elaidic acid, linoleic acid and linolenic acid, and tallow. , Butterfat, palm oil, palm kernel oil, soybean oil, safflower oil, sunflower oil, olive oil, etc., are derived from fatty acids obtained by decomposing and refining, especially oleic acid, stearin Acids, tallow fatty acids, hardened tallow fatty acids, palm oil fatty acids, hardened palm oil fatty acids, palm kernel oil fatty acids, hardened palm kernel oil fatty acids are preferred. As the unsaturated higher fatty acid, the stereoisomer may be a cis- or trans-form, or a mixture of both, and particularly, the ratio of the cis-form / trans-form is 25/75 to 100/0. (Weight ratio).

R ₁₁ and R ₁₃ may be the same or different. R ₁₂ and R ₁₄ are an alkylene group having 1 to 4 carbon atoms, specifically, a methylene group, an ethylene group, a propylene group, and a butylene group, which may be linear or branched.
Specific examples of R ₁₅ and R ₁₆ include a lauryl group, a myristyl group, a palmityl group, a stearyl group, an oleyl group, a linole group, a linolene group, and the like. R ₃ has 1 to 1 carbon atoms
4, an alkyl group or a hydroxyalkyl group, specifically, a methyl group, an ethyl group, a propyl group, a butyl group,
Examples thereof include a hydroxymethyl group, a hydroxyethyl group, a hydroxypropyl group, and a hydroxybutyl group, and a methyl group, an ethyl group, and a hydroxyethyl group are particularly preferable.

In the present invention, a dilong chain amine having an iodine value of 30 to 100, preferably 40 to 90 is used. When the iodine value is less than 30, the water absorption of the fiber is deteriorated, and when the iodine value exceeds 100, the flexibility is reduced. The dilong chain amine is neutralized with a commonly used acid. Examples of the acid include inorganic acids such as hydrochloric acid, sulfuric acid, and phosphoric acid, and organic acids such as benzoic acid, citric acid, and high molecular acrylic acid. It is desirable that the di-long chain amine neutralized product as a softening base is incorporated into the softening agent composition in an amount of 3 to 30% by weight, preferably 5 to 15% by weight.

The softener composition of the present invention may contain, as other optional components in addition to the above-mentioned components, known components which are usually added to the softener composition as long as the effects of the present invention are not impaired. . Examples of the optional component include quaternary ammonium salts such as di-long-chain alkyl di-short-chain alkyl quaternary ammonium salts, higher fatty acids such as stearic acid and oleic acid, and portions of 2-ethylhexanoic acid with glycerin or pentaerythritol. Nonionic surfactants such as esterified compounds, water-soluble salts such as sodium chloride, ammonium chloride, calcium chloride, magnesium chloride, and potassium chloride; solvents such as ethyl alcohol, isopropyl alcohol, ethylene glycol, propylene glycol, isoprene glycol, and hexylene glycol Urea, bactericides, antioxidants, dyes, pigments, silicones, hydrocarbons, cellulose derivatives, ultraviolet absorbers, fluorescent brighteners, fragrances and the like.

[0017]

According to the present invention, a di-long chain amine neutralized product having a specific iodine value having two long-chain hydrocarbyl groups is used as a softening base, so that water absorption is not impaired. It can provide excellent flexibility and is particularly suitable for use in a fully automatic washing machine.

[0018]

EXAMPLES The present invention will be specifically described below with reference to examples and comparative examples. Prior to this, an evaluation method adopted in the examples will be described. (1) Softening Method A commercially available cotton towel was repeatedly washed twice with an electric washing machine at 50 ° C. with a commercially available clothing detergent, and then thoroughly rinsed with tap water at room temperature to prepare a test cloth. Next, fully automatic washing machine Aizuma F50
Using a standard course of X2 type (manufactured by Matsushita Electric Co., Ltd.), the test cloth was washed with a commercially available detergent (Lion Co., Ltd. high top), and then rinsed for the second time, and then softened so that the soft base concentration became 200 ppm. Add a base dispersion and perform softening treatment 25
The sample was sufficiently dried at 65 ° C. and 65% RH and used for an evaluation test.

(2) Evaluation Method of Flexibility A pair of comparison was carried out using a fabric treated with a softener composition containing di-hardened tallow alkyldimethylammonium chloride as a softener base, and evaluated according to the following criteria. +2: softer than control +1: slightly softer than control 0: same as control -1: slightly softer than control -2: softer than control

(3) Evaluation method for water absorption A softened cotton towel according to JIS L 1096
Pure water (2 cm x 15 cm)
5 ° C.), and the height of water rising for 5 minutes was measured.

Examples 1 to 8 Using a soft base shown in Table 1 below, 2% by weight of a soft base
(Amine is neutralized with an equimolar amount of a neutralizing agent), polyoxyethylene (p = 40 mol) lauryl ether 0.2% by weight,
An aqueous water dispersion containing 1% by weight of ethylene glycol was prepared to prepare a softener composition, and the flexibility and water absorption were evaluated. Table 2 shows the results.

[0022]

[Table 1] Note) RCO- represents oleic acid or elaidic acid residue.
Iodine value was further changed by hydrogenation.

[0023]

Table 2: Base composition and evaluation results Soft base Evaluation long-chain amine Neutralizer Iodine value Cis / trans ratio Flexibility Water absorption Examples: 1 amine 1 hydrochloric acid 50 60/40 +1 602 amine 1 hydrochloric acid 58 60/40 0 75 3 amine 1 hydrochloric acid 80 60/40 0 804 amine 1 acetic acid 70 60/40 +1 605 amine 1 hydrochloric acid 72 40/60 +1 606 amine 2 hydrochloric acid 65 40/600 607 amine 3 Hydrochloric acid 63 40/60 0 60 8 Amine 4 Hydrochloric acid 68 60/40 0 78 Comparative example: 1 Amine 1 Hydrochloric acid 10 60/40 +1 30 2 Amine 1 None 70 60/40 -2 803 Amine 5-0-0 30 4 Amine 6-82 60 / 40-280 Note) The cis / trans ratio is the cis / trans ratio of the unsaturated moiety.

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-174770 (JP, A) JP-A-4-257372 (JP, A) JP-A-4-333664 (JP, A) JP-A-4-33364 327270 (JP, A) JP-A-4-108174 (JP, A) JP-A-1-229877 (JP, A) JP-A-63-126972 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) D06M 13/00-13/535

Claims (1)

(57) [Claims] A compound represented by the following formula (I):
Di-long chain amine neutralized product having a prime value in the range of 30 to 100
A softener composition comprising: Embedded image (R₁, R_Two: D having 16 to 25 carbon atoms including a splitting group
An alkyl group separated by a stele group or an amide group or
Alkenyl group R_Three: An alkyl group having 1 to 4 carbon atoms or hydroxya
Ruquil group)