JP3218119B2 - Solid soft finish 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 powdery, granular or tablet-type solid soft finish composition having excellent dispersibility and solubility in water.

[0002]

2. Description of the Related Art As a softening agent, a liquid type in which a di-long chain alkyl type cationic softening agent is blended in an amount of 3 to 15% by weight is mainly used, but in order to achieve a higher concentration. Solid forms of the powder or tablet type have also been studied. The biggest problem when solidifying a softening agent and using it as a softening finish is that it must be easily dispersed and dissolved when put into water.

[0003] JP-A-57-193574 discloses that urea may be added to improve the dispersion efficiency of cationic softening agent particles. JP-A-59-8800 discloses that
A mixture of di-long chain alkyl type quaternary ammonium salt powder having an average particle diameter of 150 μm or less and silica fine powder, granulation with a nonionic surfactant, and further granulation with a zeolite, disperse in water. It is disclosed that a granular softener having good properties can be obtained. Further, JP-A-62-253698 discloses a dispersion solubility obtained by granulating a foamed composition comprising an acidic powder and an alkaline carbonate powder and a di-long-chain alkyl type quaternary ammonium salt powder. An improved granular soft finish is disclosed. JP-A-63-138000 discloses a powdery or tablet-type soft finish having improved solubility by adsorbing a cationic soft base on a water-soluble powder having a large oil absorption such as urea and light ash. Is disclosed.

Further, JP-A-2-1822972 discloses that a cationic soft base having a dilong chain alkyl group contains a quaternary ammonium salt having a mono long chain alkyl group and an adduct of urea or polyamine alkylene oxide. Thus, a solid soft finish composition having improved dispersibility and solubility has been disclosed.

However, these powdery, granular or tablet-type solid soft finishes are not yet sufficiently dispersible and soluble in water, and also have a component that contributes to the softening effect of the soft-finished fiber. For example, the blending amount of component (A) in JP-A-2-1822972 is about 30 to 60% by weight in the soft finish composition. Need to use more.

Accordingly, it has been desired to improve the concentration of the softening effect component in the soft finish composition without impairing the dispersibility and solubility of the soft finish composition in water.

[0007]

Means for Solving the Problems In view of these circumstances, the present inventors have conducted intensive studies, and as a result, have found that a dilong-chain alkyl (or alkenyl) type tertiary amine having an amide bond and an ester bond or a derivative thereof. Urea or a urea derivative, a paratoluenesulfonate, a water-soluble inorganic salt or an alkylene oxide adduct of a polyamine is used in combination with a neutralized salt or a quaternary ammonium salt, and a mono-long chain alkyl (or alkenyl) type By adding a quaternary ammonium salt, it is possible to reduce the amount of an alkylene oxide adduct of urea or polyamine that does not contribute to the softening effect, and to improve the softness performance per weight of the soft finish composition. Thus, the present invention has been completed.

That is, the present invention provides a solid soft finish composition comprising the following components (A), (B) and (C). (A) Component: Tertiary amine represented by the following structural formula (I) or a neutralized salt or quaternary ammonium salt thereof.

[0009]

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Wherein R ^{1 is} an alkyl group or hydroxyalkyl group having 1 to 4 carbon atoms R ² and R ³ are an alkyl group or alkenyl group having 11 to 21 carbon atoms m: 1 to 10 n: 2 to 3 means. Component (B): a quaternary ammonium salt represented by the following structural formula (II).

[0011]

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Wherein R ⁴ and R ⁶ are an alkyl group or hydroxyalkyl group having 1 to 4 carbon atoms, R ^{5 is} an alkyl group or alkenyl group having 11 to 21 carbon atoms, p: 1 to 10 q: 2 to 2 3 X ^-: means a inorganic or organic anion group. Component (C): One or more selected from the group consisting of urea, urea derivatives, thiourea, p-toluenesulfonic acid salts, water-soluble inorganic salts, and polyether compounds.

However, the total of the components (A) and (B) in the composition is 40.0 to 99.99% by weight, and the content of the component (C) is 0.01 to 6%.
0.0% by weight, the weight ratio of component (A) to component (B) is (A) / (B)
= 95/5 to 10/90.

Hereinafter, the present invention will be described in detail.

[Component (A)] As the tertiary amine represented by the general formula (I), which is the component (A) of the present invention, more specifically, for example, the following compounds are exemplified.

[0016]

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Wherein R ² and R ³ may be the same or different and represent an alkyl or alkenyl group having 11 to 21 carbon atoms. Tertiary amine (I) used as component (A)
Are the following compounds (III) obtained by cyanoethylation and hydrogenation of N-lower alkylalkanolamines or cyanoethylation and hydrogenation of dialkanolamines such as diethanolamine

[0018]

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[Wherein R ¹ , m and n have the same meanings as above. ] With a fatty acid having 12 to 22 carbon atoms. When the tertiary amine (I) is used as a neutralized salt with an acid as the component (A), the acid used for neutralization may be an inorganic acid such as hydrochloric acid, nitric acid, phosphoric acid or sulfuric acid, or acetic acid or lactic acid; Organic acids having 6 or less carbon atoms, such as glycolic acid, citric acid, and maleic acid, can be used. Also,
When a quaternary ammonium salt of a tertiary amine (I) is used as the component (A), the quaternary ammonium salt may be a known one using an alkyl halide such as methyl chloride or an alkyl sulfate compound such as dialkyl sulfate. Can be obtained by the method described in

[Component (B)] The quaternary ammonium salt represented by the general formula (II), which is the component (B) of the present invention, more specifically includes, for example, the following compounds.

[0021]

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[In the formula, R ⁵ represents an alkyl group or an alkenyl group having 11 to 21 carbon atoms. The fourth component used as the component (B)
The quaternary ammonium salt (II) can be prepared in the same manner as in the compound (III).

[0023]

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[Wherein R ⁴ , p and q have the same meanings as above. Is reacted with a C12-22 fatty acid under appropriate conditions,
It can be obtained by modifying only the terminal amino group (referred to as an amide bond) and further using an alkylating agent such as an alkyl halide or dialkyl sulfate by a known method. At compound represented by the general formula (II), X ^- is an inorganic or organic anion group, for example Cl ^-, Br ^- and a halogen anion ^{_{group, CH 3 SO 4 -, C}} 2 H 5 _{^{SO 4 -, C x H 2x}} + 1 COO
^- (. Wherein, x is indicating the number of _{0~17), C y H 2y +} 1 OPO
₃ ^- (. Wherein, y is indicating the number of 8~18), HOCH ₂ COO ^-,

[0025]

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(Wherein R ⁷ represents an alkyl group having 1 to 18 carbon atoms).

The component (A) and the component (B) of the present invention are those in which the quaternary ammonium salt (II) is mixed in the synthesis system of the quaternary ammonium salt (I). However, they can be used as long as the ratio of the two is within the range specified in the present invention.

[Component (C)] The component (C) of the present invention comprises urea,
One or more selected from the group consisting of urea derivatives, thioureas, p-toluenesulfonates, water-soluble inorganic salts, and polyether compounds. Here, the urea derivative is an N-alkyl urea substituted with an alkyl group having 1 to 5 carbon atoms such as methyl urea and N-ethyl urea. Examples of the water-soluble inorganic salts include K ₂ CO ₃ , Na ₂ CO ₃ , NaCl, KCl and the like.

The polyether compound is obtained especially by adding an alkylene oxide essentially containing ethylene oxide to a compound having at least three active hydrogens, and the total weight of the polyethylene oxide chain portion is 50% of the total weight. Or more, preferably 80% or more, and the molecular weight is
5,000 to 2,000,000 polyether compounds or derivatives thereof are preferred. Here, the molecular weight means the weight average molecular weight.

Examples of the compound having three or more active hydrogens as a starting material of the polyoxyalkylene adduct include glycerin, pentaerythritol, sorbitol, sucrose, polyglycerin, polyvinyl alcohol, and polyvinyl acetate in polyhydric alcohols. There are saponified compounds, polyhydric phenols include phenolic resins and formalin condensates of alkylphenols, and polyamine compounds include active hydrogen such as diethylenetriamine, triethylenetetramine, tetraethylenepentamine, pentaethylenehexamine, and polyethyleneimine. And an alkanolamine such as diethanolamine. In addition, a partially amidated product or an N-alkyl-substituted polyamine which is a derivative of these polyamines or diethanolamines and which has three or more active hydrogens remaining can also be used. Production of a polyether compound which is a polyoxyalkylene adduct,
It can be easily carried out by adding an alkylene oxide essentially containing ethylene oxide to a compound having three or more active hydrogens by a usual method. Among them, in particular, ethylene oxide (hereinafter abbreviated as EO) alone or a block or partially blocked adduct of EO and propylene oxide (hereinafter abbreviated as PO) is preferable, and the order of the addition may be any, A better dispersion performance can be obtained by adding EO after adding PO first.

[Soft Finish Composition] In the soft finish composition of the present invention, the blending amounts of the component (A), the component (B) and the component (C) are the sum of the components (A) and (B). Is 40.0 to 99.99% by weight, the component (C) is 0.01 to 60.0% by weight, and the component (A) is
The weight ratio of the component (B) is (A) / (B) = 95/5 to 10/90. If the compounding ratio is out of this range, the object of the present invention cannot be achieved. Preferably, the mixing ratio of the components (A) and (B) is 60.0 to 99.99 in total in the composition.
% By weight, 0.01 to 40.0% by weight of the component (C), and the weight ratio of the component (A) to the component (B) is (A) / (B) = 95/5 to 50/50, more preferably (A) ) The total amount of the component and the component (B) in the composition is 75 to
95% by weight, 5 to 25% by weight of component (c), and the weight ratio of component (A) to component (B) is (A) / (B) = 90/10 to 70/30.

The method for producing the solid soft finish composition of the present invention containing the components (A), (B) and (C) is not particularly limited. Melt the ingredients, mix,
After cooling and solidifying, there is a method of pulverizing and pulverizing.

In addition to the above essential components, the solid soft finish composition of the present invention further comprises a bactericide, an antibacterial agent, an antioxidant,
Perfume, pigment, fluorescent whitening agent, silicone compound to improve iron slip or obtain defoaming effect, salt,
Water-soluble salts such as ammonium chloride and calcium chloride can be blended.

[0034]

The solid soft finish composition of the present invention exhibits excellent dispersibility and dissolution in water, and has a sufficient softening effect with a small amount. Since the soft finish composition of the present invention is in a solid form, the volume is smaller than that of a liquid product, so that it is easy to carry and requires no space.

[0035]

EXAMPLES The present invention will be described below with reference to examples, but the present invention is not limited to these examples.

The components (A), (B) and (C) shown in Table 1 were melt-mixed, pulverized and powdered. Aperture 1000
Using a powder having a particle size that passes through a sieve of μm and does not pass through a sieve having an opening of 200 μm, the flexibility was evaluated by the following method. <Flexibility test method> (1) A commercially available cotton towel was repeatedly washed five times with a commercial detergent Zab (manufactured by Kao Corporation, registered trademark) to remove the treatment agent attached to the towel, and then the above treatment was performed. Using 1 g of the cotton towel obtained in Example 1 and 2 g of the powder of the softening agent composition shown in Table 1, 3.5 ° DH hard water, 25 ° C., and a bath ratio of 1 /
The mixture was stirred at 30 for 5 minutes. The treated towel was air-dried at room temperature, and then left in a constant temperature and humidity room at 25 ° C. and 65% RH for 24 hours. (2) For the above treated towels, 5 of each component (A)
A cotton towel treated so that the concentration of the component (A) is the same as that of the above-mentioned treated towels in the aqueous dispersion with the same concentration as the control,
The flexibility was compared by a pair and evaluated according to the following evaluation criteria. +2 Softer than control +1 Slightly softer than control 0 Same as control -1 Slightly softer than control -2 Softer than control These results are shown in Table 1.

[0037]

[Table 1]

[0038]

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[0039]

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Note) In the table, compounds (I-1) to (II-4)
R ^{2 ′} , R ^{3 ′} and R ^{5 ′} are alkyl groups remaining after removing the carboxyl group of the fatty acid obtained by hydrolyzing hardened tallow.

────────────────────────────────────────────────── (5) References JP-A-2-182297 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) D06M 13/00-15/715 D06M 23 / 08

Claims (2)

(57) [Claims] 1. A solid soft finish comprising the following components (A), (B) and (C). (A) Component: Tertiary amine represented by the following structural formula (I) or a neutralized salt or quaternary ammonium salt thereof. Embedded image [Wherein, R ¹ represents an alkyl group or hydroxyalkyl group having 1 to 4 carbon atoms, R ² , R ³ represents an alkyl group or alkenyl group having 11 to 21 carbon atoms, and m represents 1 to 10 n: 2 to 3. I do. Component (B): a quaternary ammonium salt represented by the following structural formula (II). Embedded image [Wherein, R ⁴ and R ⁶ : an alkyl group or hydroxyalkyl group having 1 to 4 carbon atoms, R ⁵ : an alkyl group or alkenyl group having 11 to 21 carbon atoms, p: 1 to 10 q: 2 to 3 X ⁻ : Inorganic or organic anionic group. Component (C): One or more selected from the group consisting of urea, urea derivatives, thiourea, p-toluenesulfonic acid salts, water-soluble inorganic salts, and polyether compounds. However, the total of the components (A) and (B) in the composition is 40.0 to 9
9.99% by weight, 0.01 to 60.0% by weight of component (C), and the weight ratio of component (A) to component (B) is (A) / (B) = 95/5 to 10/90. 2. A polyether compound having a molecular weight of 5,000 to 2,000,000 obtained by adding an alkylene oxide having 2 to 4 carbon atoms containing ethylene oxide to a compound having at least 3 active hydrogens,
The solid soft finish according to claim 1, wherein the total weight of the polyoxyethylene chain portion is 50% by weight or more of the total weight of the polyether compound.