JPS6050908B2 - textile softener composition - 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 softeners used in this case, those containing quaternary ammonium salts or quaternary imidazolinium salts as active ingredients are generally well known. Among these, those containing quaternary ammonium salts having two long-chain alkyl groups in the molecule as an active ingredient are widely used as household softeners because they can impart excellent flexibility, especially to noodles. It is used. However, this quaternary ammonium salt, which has two long-chain alkyl groups in its molecule, has a softening effect on noodles, but is not satisfactory for synthetic fibers such as acrylic fibers and nylon fibers. It cannot be said that it is effective (see, for example, Japanese Patent Application Laid-Open No. 53-527). By the way, recently, synthetic fibers have been increasingly used as materials for household clothing, so there is a need for fabric softeners that can impart good flexibility and antistatic properties not only to noodles but also to synthetic fibers. Appearance is strongly requested.

In order to meet these demands, we have developed a softener (Japanese Unexamined Patent Publication No. 53-5279,
Wani Publication) and softeners made of mixtures of ether carboxylates and various cation activators (Japanese Patent Laid-Open No. 53-3879)
Publication No. 4) have been proposed. However, although these softeners containing a combination of a cationic activator and an anionic activator have an excellent softening effect on synthetic fibers, they have an insufficient softening effect on noodles.
It is still not satisfactory as a household softener.

The present inventors have worked diligently to overcome the drawbacks of conventional fabric softeners5 and to develop a fabric softener that has an excellent softening effect not only on noodles but also on synthetic fibers. As a result of repeated research, we found that one component was a di-long-chain alkyl ammonium salt containing a β-hydroxydocosyl group in the molecule; 2. The inventors have discovered that a combination of various quaternary ammonium salts has an excellent softening effect on both noodles and synthetic fibers, and based on this knowledge, the present invention has been accomplished. It was completely unexpected that even though the activator contained two long-chain tri-residues in the molecule, it had a softening effect on synthetic fibers. That's true.

That is, the present invention provides: (4) General formula 4 [wherein R1 is a β-hydroxydocosyl group, R2 is a docosyl group, docosenyl group, or β-hydroxydocosyl group, R3
and R4 is a lower alkyl group, a benzyl group, or a group represented by the general formula (where n and m are integers of 1 to 5), and X- is an anion]; (B) General formula [In the formula, R5 and R6 are linear alkyl groups, alkenyl groups, or β-hydroxyalkyl groups having 16 to 18 carbon atoms, R7 and R8 are lower alkyl groups, benzyl groups, or (where n'' and m'' are integers of 1 to 5), and Y- is an anion.
) in a weight ratio of 3/7 to 9/1.

The general formula used as component (4) in the composition of the present invention (
1) The quaternary ammonium salt has at least 1
It is an ammonium salt with two long chain residues containing β-hydroxydocosyl groups, such as di(β-hydroxydocosyl)dimethylammonium chloride, β-hydroxydocosyl・Docosyl●dimethylammonium butymide, β-hydroxydocosyl◆docosenyl◆methyl●β-hydroxyethylammonium methosulfate, etc.

These may be used alone or in a mixture of two or more.The quaternary ammonium salt of the general formula (■) used as the component (B) is a linear Examples include dipalmityldimethylammonium chloride, distearyldimethylammonium chloride,
Di-hydrogenated beef tallow alkyldimethylammonium chloride, Di-hydrogenated beef tallow alkyl ◆ methyl benzyl ammonium bromide, Di-hydrogenated beef tallow alkyl diethylammonium methosulfate, Dioctadecenyl.
J dimethylammonium chloride, dihydrogenated tallow alkyl ● methyl ● β-hydroxyethylammonium chloride, di(β-hydroxypalmityl) ◆ dimethylammonium chloride, di(β-hydroxystearyl) dimethylammonium acetate, etc. . These may be used alone or in combination of two or more. Examples of particularly suitable combinations of component (4) and component (B) in the composition of the present invention include:
Di(β-hydroxy, sidocosyl) ◆Dimethylammonium chloride and distearyl dimethylammonium chloride, β-hydroxydocosyl●Docosyl●Dimethylammonium chloride and Dihydrogenated tallow alkyldimethylammonium chloride and Di(β-hydroxydocosyl)● Examples include methyl β-hydroxyethylammonium chloride and di(β-hydroxystearyl) methyl β-hydroxyethylammonium chloride.

In the composition of the present invention, in place of component (B), the general formula (
(2) in which one or both of R5 and R6 has a carbon number of less than 1; for example, R6 is an aromatic group bonded to a nitrogen atom through one aliphatic carbon atom. (So-called antibacterial quaternary ammonium salts) cannot achieve the object of the present invention.

In the composition of the present invention, the component represented by the general formula (1) and the component (B) represented by the general formula (■) are combined in a weight ratio (A)/(B) of 3/7 to 9/1. It is necessary to mix the proportions within the range.

If the content of component (4) exceeds this range, the flexibility for noodles will decrease, and if the content of component (B) exceeds this range, the flexibility and antistatic properties for synthetic fibers will decrease. However, sufficient effects cannot be exerted on both rice noodles and synthetic fibers.
The composition of the present invention comprises the above two essential components and (B)
In addition, it may further contain additive ingredients commonly used in household fabric softeners, such as nonionic activators, stabilizers such as propylene glycol, inorganic or organic electrolytes, colorants, fluorescent whitening agents, and fragrances, as desired. can be set.

Furthermore, when it is in the form of a household softener, it is desirable that the amount of the softener active ingredient be 3 to 2% by weight based on the total composition, taking into account the effectiveness and dispersibility during use.

The fabric softener composition thus prepared can be used in exactly the same manner as conventional fabric softeners. Next, the present invention will be explained in more detail with reference to Examples.

Example 1 β-hydroxydocosyl docosyl methyl β-hydroxyethylammonium chloride or
Di(β-hydroxydocosyl)dimethylammonium chloride, and dihydrogenated beef tallow alkyldimethylammonium chloride, distearyl.
Methyl β-hydroxyethylammonium chloride or di(β-hydroxystearyl)dimethylammonium chloride was used, and component (4) was 3.5% by weight.
An aqueous solution containing 3.5% by weight of component (B) was prepared.

Next, the four types of softeners thus obtained were tested for their flexibility and antistatic properties on a cotton towel, acrylic jersey, and nylon tricot. The results are shown in Table 1. For comparison, distearyl methyl β-hydroxyethylammonium chloride was
The results when used alone are also shown.

The test method and evaluation method are as follows.

(1) Test method Commercially available towels, acrylic jersey, and nylon tricots were washed 5 times at 60° C. using a laundry detergent (commercially available) to prepare test cloths.

Next, the softener prepared as described above was diluted with tap water at 25°C to give a concentration of 0.067%, and the softener was poured into this solution at a bath ratio of 3@
The test cloth was soaked in water and stirred for 3 minutes. The fabrics treated in this way were air-dried indoors, and then the fabrics for evaluating the softening effect were dried at 25°C.
The samples were left under conditions of 65% RH for 24 hours, and those for antistatic effect evaluation were left under conditions of 20° C. and 45% RH for n hours for each test. (2) Evaluation method (a) Flexibility: The feel of the test fabric before and after treatment was compared and evaluated according to the following criteria.

+5...Very soft +4...Very soft, +3
... Soft +2 ... Slightly soft +1 ... Slightly soft 0 ... Same as before treatment Antistatic property: According to static honest meter,
The cloth was charged with an applied voltage of 7K and a target distance of 20, and the half-life (seconds) of the charged voltage after the voltage was removed was measured.

As is clear from this table, a mixture of equal amounts of the raw material and component (B) is more effective than component (B) alone or a commercially available fabric softener. Shows excellent results for all types of tricots.

In addition, similar experiments were conducted on component (B) in which R7 and R8 were replaced with hydroxyethyl groups.
Equally good results were obtained.

Example 2 (4) component: Di(β-hydroxydocosyl) methyl β-hydroxyethylammonium , Softeners having different mixing ratios of component (4) and component (B) were prepared.

Claims (1)

[Claims] 1 (A) General formula ▲ Numerical formulas, chemical formulas, tables, etc. R_3 and R_4 are lower alkyl groups, benzyl groups, or groups represented by the general formula ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ or ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (However, n and m are integers from 1 to 5) , Straight chain alkyl group, alkenyl group or β-hydroxyalkyl group, R_7 and R_8 are lower alkyl group, benzine group or general formula ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ or ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (where n' and m' are integers of 1 to 5) and a quaternary ammonium salt represented by A fiber softener composition comprising a blending ratio ranging from 3/7 to 9/1.