JPS6039791B2 - Softener composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a softener composition having excellent storage stability at high temperatures.

More specifically, the present invention relates to a liquid softener composition that exhibits little increase in viscosity and does not cause liquid separation even when stored at high temperatures for long periods of time. Fabric softeners are used in the washing process to impart flexibility and antistatic properties to clothing, but in recent years cationic agents have been developed that can impart excellent flexibility and antistatic properties to both natural and synthetic fibers. Softeners containing anionic complexes (mainly complexes of quaternary ammonium salt type cationic surfactants and anionic surfactants) are beginning to be used.

It is true that this type of surfactant provides excellent flexibility and antistatic properties not only to natural fibers, but especially to synthetic fibers, compared to when a quaternary ammonium salt type cationic surfactant is used alone. However, it has the disadvantage of poor storage stability at high temperatures. In other words, if the softener composition is stored outdoors or in a warehouse,
During the summer, it may be stored for long periods of time at high temperatures of 3500 to 450°C, but if a softener containing a cation anion complex is stored at such high temperatures, the viscosity of the composition will increase significantly, making it difficult to use it. This is because it has the drawback of being difficult to come out of the container and causing separation of the two layers. Adding a large amount of nonionic surfactant is a known method to solve these drawbacks, but although this method lowers the viscosity of the liquid and suppresses thickening at high temperatures, it This is not preferable because it has the drawbacks of causing two-layer separation and deteriorating flexibility.

On the other hand, acyclic hydrocarbons having 10 to 22 carbon atoms,
It is also known to add a viscosity modifier selected from the group consisting of 24 fatty acids or esters thereof, and alcohols having 10 to 18 carbon atoms. (Japanese Unexamined Patent Publication No. 55-116878), even if these viscosity modifiers are added, the increase in viscosity cannot be sufficiently suppressed even at high temperatures. The present inventors solved the above drawbacks and developed a liquid softener composition that can impart excellent flexibility and antistatic properties to both natural fibers and synthetic fibers, and has excellent retention stability at high temperatures. As a result of intensive research, we found that a specific
The system of cation-anion complex consisting of an ammonium salt type cationic surfactant and an anionic surfactant has an organic value of 1000 to 1400 in the organic conceptual diagram.
It has been discovered that the desired object can be achieved by adding a substance having an inorganic value in the range of 100 to 600, and the present invention has been completed.

The quaternary ammonium salt type cationic surfactant used in the present invention is represented by the following general formula {1--.

(In the formula, R and R2 are an alkyl group having 12 to 24 carbon atoms or an 8-hydroxyalkyl group, and R3 and R4 are an alkyl group having 1 to 3 carbon atoms or
n represents a group represented by an integer of 1 to 5, and X- represents an anion.

) Particularly preferred components include dilaryldimethylammonium chloride, dipalmityldimethylammonium chloride, distearyldimethylammonium chloride, dihydrogenated beef tallow alkyldimethylammonium chloride, and di(2-methylstearyl)dimethylammonium. Chloride, dihydrogenated beef tallow alkyldimethylammonium methylsulfate, di(P-hydroxystearyl)diethylammonium acetate, dioleyldimethylammonium ethylsulfate, distearylmethylhydroxyethylammonium chloride, distearylmethylpolyoxyethylene ( P
=5) Awamonium chloride, ditetracosyldimethylammonium chloride.

The amount of component arc added is 3 to 2% by weight, preferably 6% by weight.
~1% by weight. Components used in the present invention [
It is an anionic surfactant. Examples of anionic surfactants include alkyl (C10-20) sulfates, polyoxyethylene (P=1-5) alkyl (C12-2)
2) Examples include ether sulfates, alkylbenzene sulfonates having 10 to 18 carbon atoms, and fatty acid soaps. As these salts, alkali metal salts and ethanolamine salts are preferred. In addition, P was used here as an abbreviation for the average number of added moles of ethylene oxide (the same applies hereinafter). Among these, fatty acid soaps having 10 to 22 carbon atoms are preferred, and potassium salts, sodium salts, magnesium salts, calcium salts, alkanolamine salts, and lower amine salts of fatty acids having 14 to 18 carbon atoms are particularly preferred. The anionic surfactant of component [B-] is worse than the cationic surfactant of component [B-].
' is added in a range of 80/20 to 52'48 (molar ratio), particularly preferably 70'30 to 55/45 (molar ratio). The molar ratio of component [B} to component leg is 80
/20, the flexibility and antistatic properties for synthetic fibers will deteriorate, and if the molar ratio of component Tsukuda to component (2) is greater than 52/48, the flexibility and antistatic properties for both natural fibers and synthetic fibers will deteriorate. This is because the quality deteriorates.
The component used in the present invention} is a substance having an organic value in the range of 1000 to 1400 and an inorganic value in the range of 100 to 600 in the organic conceptual diagram.

Regarding organic conceptual diagrams, see Chemistry Area vol. 11,M.
10 (October 1957 issue), page 719 et seq., and Systematic Organic Qualitative Analysis (Purity Edition), Kazama Shobo (1970), etc., organic compounds are composed of covalent bonds between carbon chains. The “organic” nature of the hydrocarbons
Focusing on the fact that it is made up of two factors, "inorganic" due to the influence of electrostatic properties present in substituents (functional groups), and identifying individual organic compounds by these "organic" and "inorganic" It is. The organic value is calculated as 20 per carbon in the structural formula of the compound, and the inorganic value is calculated using the values established for each functional group described in the above publication. still,
Based on our previous experience, we calculated the inorganicity value of each fCQC day 20 group as 75.

The organic value used in the present invention is 1000 to 140
Examples of substances with an inorganic value in the range of 0 and an inorganic value in the range of 100 to 600 include N-lauroylglutamic acid 2-octyldodecyl gester (organic value 1120, inorganic value 320) polyoxyethylene (P= 2-5) Trimethylolpropane trimyristate (organic value 1020
-1140, inorganic value 165-390), polyoxyethylene (P=0-5) trimethylolpropane tristearate (organic value 1180-1 paper 0, inorganic value 180
~390), polyoxyethylene (P=3) glyceryl triisostearate (organic value 1230, inorganic value 2
40), sorbitan triolate (organic value 1200,
Inorganic value 371) is exemplified.

These may be used alone or in combination. component{
The amount of C} added is 0.05 to 5% by weight, preferably 0.1
~1% by weight. By adding component (C),
For the first time, it is possible to improve the storage stability at high temperatures of softener compositions containing cationic anion complexes. * In the present invention, it is preferable to add about 0.5 to 2% by weight of a nonionic surfactant in order to improve the dispersion stability of the liquid.

Particularly preferably, the nonionic surfactant is polyoxyethylene (P: 30-60) alkyl (carbon number 12-20)
Phenyl ether and polyoxyethylene (P=30~
60) Alkyl (C10-22) ether.
Further, the amount added is particularly preferably 0.7 to 1.5% by weight. Furthermore, in the present invention, it is necessary to add water to form a softener composition, and stabilizers such as urea, ethylene glycol, propyreso glycol, etc.
Inorganic/organic electrolytes such as salt, ammonium chloride, and glycine, colorants, halo brighteners, fragrances, and the like can be optionally added. Next, the present invention will be explained in detail with reference to examples.
Example 1 ■ Dihardened beef tallow dimethyl ammonium chloride 8. Weight % of [B} Potassium stearate 2.1
Weight% [wind/leg = 69'31 molar ratio], 3% by weight of various additives, 1.0% by weight of polyoxyethylene (P=40)/nilphenyl ether, and the remainder is purified water. Regarding the composition, viscosity change and liquid separation during high-temperature storage were measured.

The results are shown in Table-2. The measurement was performed using the following method. The composition was adjusted and the viscosity of the composition was measured after standing at 25o0 for 1 hour (viscosity immediately after 2500), then 25oo and 45o
After being stored in a temperature bath of No. 00 for 4 weeks, the viscosity at each temperature was measured.

Table 2 *1: Diester of N-lauroyl glutamic acid and polyoxychetylene (P=3)-2-octyl dodetylether From Table 2, the products of the present invention (Lung.1 to 4) were 0 and 4
The viscosity after being left for a week is as low as 1/2 or less of the viscosity of the comparative example (Length 5 to 9), and according to the present invention, the increase in viscosity can be suppressed to a low level even when stored at high temperatures for long periods of time. I understand.

Among the products of the present invention, No. 1 in which the amount of component {C' added is 0.5% by weight or more. Nos. 2, 3, and 4 are particularly good, with a low viscosity of around 500 after standing for 4 weeks at 45q0. No. 1, which matches only one of the organic value and inorganic value of component [C' defined in the present invention. When No. 8 and No. 9 were used, the viscosity itself increased at 2500, and no effect of suppressing the viscosity increase was observed even after storage at 4500. Also, chest. For samples 1 to 9, no liquid separation was observed after being left at 4500 for 4 weeks. No. In composition No. 5, the addition amount of polyoxyethylene (P = 40) nonyl phenyl ether was 2.5% by weight, and it was possible to suppress the increase in viscosity after leaving it at 450°C (viscosity immediately after 2500°C). 1
Separation occurred in the lower layer of 10 centipoise, 70 centipoise after 4 weeks, and 130 centipoise after 4 weeks. Example 2 The following composition was measured for viscosity change and liquid separation during high temperature storage.

In addition, all compounding amounts are weight %. Composition 10 Distearyldimethylammonium chloride
7-0% {B}
Potassium stearate 1.6% molar ratio 71/29} Polyoxyethylene (P=5
) trimethylolpropane trimyristate [organic value 1140, inorganic value 390] 1.0%' success polyoxyethylene (P; 50) nonyl phenyl ether
1.0% {E) Purified water
Balance composition 11■ Di(B-hydroxystearyl)dimethylammonium chloride 6.0% (BI sodium myristate
16%■/(B) molar ratio 60/40)
Polyoxyethylene (P=3) glyceryl triisostearate [organic value 1230, inorganic value 240]
0.5% dish polyoxyethylene (P=40) stearyl ether
0.7 dishes Purified water Balance composition 12 style dipalmityl methyl hydroxyethylammonium methyl sulfate 9.0%
Tsukuda Magnesium stearate 2.3%■/
'B} molar ratio 65'35) Sorpitan triolate [organic value 1200, inorganic value 371] 0.5
% plate Polyoxyethylene (P; 40) lauryl ether 1.5 [E}
Purified water balance composition 1
3. Didocosyldimethylammonium chloride 7.
0% {81 Trietanolamine stearate 3
．． 5% black/'B' molar ratio 55/45 {C' polyoxyethylene (P:3) glyceryl tristearate [organic value 126, inorganic value 240] 0.5% polyoxyethylene (P:50 )/nilphenyl ether
1.0% (E} Purified water
Balance composition 14 breast dihydrogenated beef tallow dimethyl ammonium chloride
7.0% Sodium stearate 2.0% wind/tB} Molar ratio 61
'39{C} Diester of N-lauroylglutamic acid and polyoxyethylene (P=2)-12-octyldodecyl ether [organic value 1280, inorganic value 510]
0.5% ■ Polyoxyethylene (P=50) nonyl phenyl ether 1.
0) Cetyl alcohol 1.
0'F} Ethylene glycol 7.
0) Fragrance and coloring agent Small amount 0 Goso water Balance table -Table 3-
As shown in 3, the products of the present invention (Nos. 10 to 14) are 45
It can be seen that there is little increase in viscosity even when stored for a long time at 0.00.

Claims (1)

[Claims] 1. A softener composition containing the following components. (A) 3 to 20% by weight of a quaternary ammonium salt type cationic surfactant represented by the following general formula (I) ▲ Numerical formulas, chemical formulas, tables, etc. are available ▼ (In the formula, R_1 and R_2 have 12 to 24 carbon atoms. alkyl group or β-hydroxyalkyl group, R_3 and R
_4 is an alkyl group having 1 to 3 carbon atoms or -(CH_2
CH_2O)-nHn is a group represented by an integer of 1 to 5,
X^- represents an anion. ) (B) Anionic surfactant (A)/(B) = 80/20 to 52/48 (molar ratio) (
C) In the organic conceptual diagram, the organic value is 1000 to 140
0.05 to 5% by weight of a substance whose inorganic value is in the range of 100 to 600.2 Component (B) is potassium salt, sodium salt, magnesium salt of fatty acid having 10 to 22 carbon atoms, The softener composition according to claim 1, which is a fatty acid soap selected from the group of alkanolamine salts and ammonium salts. 3. A patent claim in which component (C) is a substance selected from the group of N-lauroylglutamic acid 2-octyldodecyl diester, polyoxyethylene (average number of added moles of ethylene oxide 2 to 5) trimethylolpropane trimyristate, and sorbitan triolate. The softener composition according to item 1.