JPS6354827B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a softener composition that can impart extremely excellent flexibility and antistatic properties not only to noodles but also to synthetic fibers such as acrylic fibers and nylon fibers. In order to impart good flexibility to textile products such as clothing, fabric softeners are usually used in the washing process. As such softeners, those containing quaternary ammonium salts or quaternary imidazolinium salts as active ingredients are generally well known. Among these, those whose active ingredient is a quaternary ammonium salt having one or two long-chain alkyl groups in the molecule can impart excellent flexibility, especially to noodles, and are therefore used as household softeners. Widely used. This quaternary ammonium salt, which has one or two long-chain alkyl groups in its molecule, certainly has a good softening effect on noodles, but it is also used in the synthesis of acrylic fibers, nylon fibers, polyester fibers, etc. It is also known that it does not have a satisfactory softening effect on fibers (see, for example, Japanese Patent Application Laid-Open No. 53-52799). By the way, recently, synthetic fibers have been increasingly used as materials for household clothing.
There has been a social demand for flexibility that can impart good flexibility and antistatic properties not only to noodles but also to synthetic fibers. In line with these demands, many studies have been conducted, for example, a mixture of a quaternary ammonium salt having a long-chain alkyl group in the molecule and a long-chain alkylamide ethylhydroxyethylamine salt (Japanese Patent Publication No. 48-20204 JP-A-54-88395), or a composition in which an amphoteric activator is further added to such a mixture (JP-A-54-88395). However, although these softeners that combine a quaternary ammonium salt and a cationic activator or an amphoteric activator have an excellent softening effect on synthetic fibers, their softening effect on noodles decreases, resulting in failure. It cannot be said to be satisfactory as a household softener. The present inventors have overcome the drawbacks of such conventional softeners, and have demonstrated excellent softening effects on noodles, as well as excellent softening and antistatic effects on synthetic fibers. As a result of extensive research in order to obtain a softener composition that exhibits the Based on this finding, the present invention has been accomplished. That is, the present invention provides (A) general formula [R ₁ and R ₂ in the formula each have 12 to 24 carbon atoms
alkyl group, β-hydroxyalkyl group or alkenyl group, R ₃ and R ₄ each have 1 carbon number
~3 lower alkyl group or general formula (-C _o H _2o O)-
_n H (where n is an integer of 2 or 3, m is 1 to 3
(an integer of ) , X ^- is an anion] Quaternary ammonium salt, (B) General formula [In the formula, R ₅ is an alkyl group or alkenyl group having 7 to 23 carbon atoms, W is hydrogen or CH ₂ CH (OH)
R ₆ (wherein R ₆ is an alkyl group or alkenyl group having 10 to 16 carbon atoms), Y ^- is an anion]; and (C) a group having 12 to 20 carbon atoms. Contains long-chain alkyl alcohol, and the total weight of the above components (A) and (B) and (C)
The present invention provides a softener composition in which the weight ratio (A+B)/C of the components is in the range of 90/10 to 50/50. Component (A) used in the softener composition of the present invention is selected from substances represented by the general formula (). In formula (), R ₁ and R ₂ may be the same or different, and preferably have 16 to 22 carbon atoms. Also
When R ₁ and R ₂ are alkyl groups, straight chains are preferred, but long chain alkyl groups having monomethyl branches are also preferred. R ₃ and R ₄ in the formula may be the same or different, and among lower alkyl groups, methyl and ethyl groups are preferred, and hydroxy short-chain alkyl groups such as hydroxyethyl and hydroxy It may also be an alkyleneoxyalkyl group. Preferred examples of the anion X ^- in the formula include a halogen ion, an acetate group, a sulfate alkyl ester group such as methyl sulfate or ethyl sulfate, a phosphate group, and a nitrate group. Specific examples of the quaternary ammonium salt represented by the general formula (), which is component (A), include dipalmityldimethylammonium chloride, distearyldimethylammonium bromide, di-hydrogenated tallow alkyldimethylammonium chloride, and di-hydrogenated beef tallow alkyldimethylammonium chloride. Tallow alkyldimethylammonium methyl sulfate, diβ-hydroxystearyldiethylammonium acetate, dioleyldimethylammonium chloride, didocosyldimethylammonium chloride, ditetracosyldimethylammonium chloride, distearylmethylβ-hydroxyethylammonium chloride, dilauryldimethyl Examples include ammonium chloride. These substances can be used alone or in combination of two or more. Component (B) used in the softener composition of the present invention is selected from cationic activators represented by the general formula (). _R5 in formula () is an alkyl group or alkenyl group having 7 to 23 carbon atoms, preferably one having 15 to 21 carbon atoms. Also, the anion in the formula
Preferred examples of Y ^- include hydrochloride, bromo, acetate, phosphate, nitrate, and sulfate alkyl ester groups such as methyl sulfate or ethyl sulfate. Specific examples of component (B) represented by general formula () include octanoylaminoethylhydroxyethylamine hydrochloride, stearoylaminoethylhydroxyethylamine hydrochloride, tetracosanoylaminoethylhydroxyethylamine hydrochloride, stearoylaminoethyl-β- Examples include hydroxylaurylhydroxyethylamine hydrochloride, stearoyl aminoethyl-β-hydroxypalmitylhydroxyethylamine hydrochloride, palmitoylaminoethylhydroxyethylamine nitrate, myristoylaminoethyl-β-hydroxymyristylhydroxyethylamine phosphate, and the like. One type of these substances may be used, but two or more types can be selected and used. The ratio of component (A) to component (B) is not particularly limited, but it is preferably in the range of 90 to 50:10 to 50 in weight ratio of (A):(B). The component (C) used in the composition of the present invention is a long-chain alkyl alcohol having 12 to 20 carbon atoms, and particularly preferred examples include lauryl alcohol, myristyl alcohol, cetyl alcohol, n- Higher alcohols such as eicosyl alcohol can be mentioned. The softener composition of the present invention contains the above-mentioned (A) component, (B) component, and (C) component, and the total amount of (A) component and (B) component and (C) Ratio to the amount of ingredients (A+
B)/C must be between 90/10 and 50/50 based on weight. If the content of component (C) is less than 10% by weight based on the total amount of essential active ingredients (A), (B) and (C), the effect of imparting flexibility to synthetic fibers will decrease, and component (C) will If it exceeds 50% by weight, it is disadvantageous because the effect of imparting flexibility to noodles is reduced and the object of the present invention cannot be effectively achieved. The preferred ratio is 85/1
The weight range is from 5 to 60/40. The composition of the present invention comprises the above (A) component, (B) component and (C)
By combining ingredients and containing them as essential active ingredients, and especially by blending ingredient (C) in a specific range proportion,
The object of the present invention has been effectively achieved, and
It is an extremely effective composition for blended knitted and woven fabric products, as it provides an excellent softening agent for both noodles and synthetic fibers, and also has an antistatic effect. In addition to components (A), (B), and (C), the composition of the present invention may optionally contain nonionic activators, inorganic or organic electrolytes, colorants, fluorescent whitening agents, fragrances, and the like. Additives that are commonly added to household softeners can be blended, and anionic active agents such as α-olefin sulfonate and polyoxyethylene alkyl sulfate can also be included. Further, it is more convenient if the composition of the present invention is provided as an aqueous dispersion for convenient handling at home. , a convenient concentration for dilution and use, e.g. when the sum of the three essential components is 3~
The content is preferably about 20% by weight. Further, the composition of the present invention can be used in exactly the same manner as a conventionally used softener when applied to textile products made of noodles or synthetic fibers. Hereinafter, the present invention will be explained in more detail with reference to Examples. In addition, the test method and evaluation method for examining the excellent effects of the softener composition of the present invention are as follows. (1) Test method Using commercially available towels, acrylic jersey and polyester jersey as synthetic fiber products,
For each, use laundry detergent (commercially available),
The cloth was washed 5 times at 60°C and used as a test cloth.
Next, dilute the fabric softener prepared as described above with tap water at 25°C to a concentration of 0.067%, and pour it into the solution at a bath ratio of 0.067%.
The test cloth was soaked at 30x and stirred for 3 minutes. After the fabrics treated in this way were air-dried indoors, the fabrics used to evaluate the softening effect were left at 25°C and 65% RH for 24 hours, and the fabrics used to evaluate the antistatic effect were left at 25% RH for 24 hours.
The samples were left for 72 hours under the conditions of ℃ and 45% RH, and then subjected to each test. (2) Evaluation method (a) Flexibility: The feel of the test fabric before and after treatment was compared and evaluated based on the following criteria. ◎...Very soft 〇...Soft △...Slightly stiff ×...Same as before treatment (B) Antistatic property: Using a static honest meter, the voltage applied to the cloth was 7KV, and the target distance was 20
mm, and the half-life (seconds) of the charged voltage was measured after the voltage was removed. Examples 1 to 3 and Comparisons 1 to 2 Aqueous softener composition dispersions having the following compositions were prepared.
However, three types of compositions of the present invention were prepared by changing only the amount of component (C) added, and for comparison, one without and one with excessive addition of component (C) were prepared, and the softening effect on noodles and synthetic fibers was determined respectively. And the antistatic effect was tested and evaluated. [Composition No. 1 to 3] (A) Distearyldimethylammonium chloride
5% by weight (B) Stearoylaminoethyl-β-hydroxyalkyl (C ₁₂ - C ₁₄ ) hydroxyethylamine hydrochloride 1 (C) Setanol 0 - 10 (D) Ion exchange water Balance About the aqueous dispersion of each composition , Momen towel, acrylic jersey, and polyester fabric products were tested, and the results are summarized in Table 1 below. In addition, in the table, each fabric product is abbreviated by material.

[Table] From the above results, it is clear that the content of component (C) is extremely important. Examples 4 to 7 Softener compositions (No. 4 to No. 7) having the following compositions were prepared and tested on the same cotton towels and synthetic fiber jersey as in the previous example. The results are shown in Table 2. Blend composition No. 4 (A) Dihydrogenated tallow alkyl dimethyl ammonium chloride 4% by weight (B) Stearoylaminoethylhydroxyethylamine hydrochloride 1 〃 (C) Stearyl alcohol 2 〃 (D) Ion exchange water Balance composition No. 5 (A) Dipalmityldimethylammonium methyl sulfate 5% by weight (B) Palmitoylaminoethylhydroxyethylamine hydrochloride 2 (C) Myristyl alcohol 2 (D) Polyoxyethylene nonyl phenyl ether (=50) 1 ( E) Ion exchange water Balance composition No. 6 (A) Didocosyldimethylammonium bromide
6% by weight (B) Dicosanoylaminoethylhydroxyethylamine hydrochloride 1 〃 (C) Palmityl alcohol 2 〃 (D) Ethylene glycol 5 〃 (E) Ion exchange water Balanced composition No. 7 (A) G-β - Hydroxystearylmethylhydroxyethylammonium chloride 5% by weight (B ₁ ) Stearylaminoethylhydroxyethylamine nitrate 2 (B ₂ ) Stearylaminoethyl-β-hydroxyalkyl (C ₁₂ - C ₁₄ ) hydroxyethylamine hydrochloride 1 (C ) Stearyl alcohol 2 〃 (D) Polyoxyethylene nonyl phenyl ether (=50) 1 〃 (E) Ethylene glycol 5% by weight (F) A small amount of each fragrance and coloring agent (G) Ion exchange water Balance

[Table] From the table, it is clear that the composition of the present invention has a satisfactory softening effect on both noodles and synthetic fibers, and the antistatic effect on synthetic fibers is also significantly improved. It is.

Claims (1)

[Claims] 1 (A) General formula [R ₁ and R ₂ in the formula each have 12 to 24 carbon atoms
alkyl group, β-hydroxyalkyl group or alkenyl group, R ₃ and R ₄ each have 1 carbon number
~3 lower alkyl group or general formula (-C _o H _2o O)-
A quaternary ammonium salt represented by a group represented by _n H (where n is an integer of 2 or 3, ^m is an integer of 1 to 3), [In the formula, R ₅ is an alkyl group or alkenyl group having 7 to 23 carbon atoms, W is hydrogen or a group represented by [formula] (wherein R ₆ is an alkyl group or alkenyl group having 10 to 16 carbon atoms), Y ^- is an anion]; and (C) a long-chain alkyl alcohol with 12 to 20 carbon atoms, and the total weight of components (A) and (B) above, and (C)
A softener composition in which the weight ratio of components (A+B)/C is in the range of 90/10 to 50/50.