JPH03287867A - Flexibilizing finish - Google Patents

Abstract

PURPOSE:To provide the title finish good in storage stability and capable of giving textiles flexibility, antistatic nature and elasticity, consisting of an aqueous dispersion containing, as the essential components, each specific plural kinds of quaternary ammonium salt and imidazoline-based compound with the weight ratios specified. CONSTITUTION:The objective finish consisting of an aqueous dispersion containing, as the essential components, (A) a quaternary ammonium salt of formula I (R1 is 12-22C alkyl or alkenyl; R2 and R3 are each methyl, ethyl, hydroxyethyl, etc.; X is halogen, etc.), (B) a compound of formula II (R4 and R6 are each 11-22C alkyl or alkenyl; W is methyl or ethyl), (C) another quaternary ammonium salt of formula III (R8 is the same as R4; m is 2 or 3), and (D) a compound of formula IV (R9 is the same as R4; Y is halogen, etc.) with the weight ratios satisfying the relationships V-VIII and a total of the components A-D accounting for 4-40wt.% of the final finish.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a fabric softener, and more specifically, a liquid fabric softener that can impart excellent flexibility and elasticity (fluffiness) to various fibers. It is related to.

[Prior art and problems to be solved by the invention] Currently,
Most products commercially available as household fabric softeners are compositions whose main component is a quaternary ammonium salt having one or two long-chain alkyl groups in the component molecules. The reason for this is that a small amount of quaternary ammonium salt has a good softening effect on various fibers.

The above-mentioned quaternary ammonium salts have a remarkable softening effect on cotton, but the effect is not sufficient on synthetic Ifi fibers such as acryl, acrylic, polyester, and polyamide fibers. However, if treated at a higher concentration, the elasticity of clothing may decrease and the texture may be impaired.

In addition, when storing for a long time, especially at low temperatures, the viscosity may thicken,
It may form a gel or separate.

For this reason, various polyoxyalkylene-based nonionic activators, electrolytes, and solvents are required in addition to the softening component, and although many products are stabilized by blending these, they are still not sufficiently effective.

[Means for Solving the Problems] As a result of intensive research to solve the above drawbacks, the present inventors have found that
This led to the present invention.

That is, the present invention consists of an aqueous dispersion that essentially contains the following components (a) to (d), and the weight ratio of (a) to (d) Iv is (a)/[(a)+ (b)+(c)+(d)] ~0
．． 2/100~5/100(b)/ [(a)+(b
)+(c)+(d)]=5/100~90/10
0 (c) / ((8) ten (b) + (c) + (d)) ~
0.2/100~18/100(d)/ [(a)+(
b)+(c)+(d)]=5/100~90/1
00, and provides a fabric softener containing components (a) to (d) in a total amount of 4 to 40% by weight.

(a) Component: One or more compounds selected from the following (a-1) to (a-3) g R+ N" Rz χ-(a-1)2 JaOH (b) Component: The following One or more compounds selected from (b-1) to (b-3) R= R+ N" Ra Rs - (b-1) ■ CJaNHCOHRa (c) Component: The following (c-1) ) and (c-2) 7 R, -N"-R2 - (c-1) S - (c-2) [In the formula, R+, Rs, Rt' carbon Alkyl group or alkenyl group having 12 to 22 carbon atoms R2, R3: Methyl group, ethyl group, hydroxyethyl group or hydroxypropyl group R4, Rh, Re: Alkyl group or alkenyl group having 11 to 21 carbon atoms 12 methyl group or ethyl Group x: halogen, C)13SO, or CZ)15304
m: means 2 or 3. ] (d)? ff component: Compound C represented by the following general formula (d),)12. o) I CJnNHCORq [wherein, R1: alkyl group or alkenyl group having 11 to 21 carbon atoms Y: CL Br, R100SO3 (RIO;
CH3 or C2)Is), an alkyl group or alkenyl group with a prime number of 8 to 18) Garden: 2 or 3. ] Components (a), (b) and (c) of the present invention can be obtained by known methods. The compounds used in the present invention are particularly R+ and Rs in each of the above formulas.

It is preferable that R6 is an alkyl group or alkenyl group having 16 to 22 carbon atoms, and R11 is an alkyl group or alkenyl group having 15 to 21 carbon atoms.

The cyclic compound of component (d) of the present invention is known as a dacillin-based compound, and is obtained by the dehydration cyclization reaction of diethylenetriamine and a fatty acid having 12 to 22 carbon atoms.[R: Number of carbon atoms] 11-21 Alkyl or Alkenyl Group] After neutralizing the compound represented by the structure with a predetermined amount of protonic acid, ethylene oxide or propylene oxide can be added. The compound having this structure gives a compound having a partially ringed structure during synthesis or storage, but it is desirable to suppress the amount of these ring-opened compounds to 20% by weight or less, preferably 10% by weight or less.

As the fatty acid used to obtain the @component, saturated or unsaturated fatty acids having 16 to 22 carbon atoms, such as fatty acids of hardened beef tallow and stearic acid, are most preferable in terms of flexibility and elasticity.

In the present invention, the blending ratio of components (a) to (d)* is important in terms of flexibility, elasticity, and storage stability.

In the present invention, the blending ratio of each component is (a)/C(a)+(b)+(c)+(d)] =0
．． 2/100 to 5/100, preferably 0.5/10
0 to 3/100, (b)/[(a)+(b)
+(c)+(d)] = 5/100~90/100
, preferably 10/100 to 70/100, (c
)/ [(a)+(b)+(c)+(d)] =0.2
/100 to 18/100, preferably 0.5/100 to
B /100, (d) / [(a) + (b) + (
c)+(d)] = 5/100 to 90/100, preferably 10/100 to 70/100.

The blending ratio of components (a) to (d) $ is important, and if it deviates from the above range, some clothing materials may not be able to exhibit sufficient softness and elasticity.

That is, when the (a) component is less than 0.2% by weight or the (c) component is more than 18% by weight with respect to the total amount of the (a) $, min ~ (d) components, the effect on cotton is decreases,
On the other hand, (a) the ff component is more than 5% by weight, or (c
) If the content of the component is less than 0.2% by weight, the effect on synthetic fibers will be reduced. If the content of component (b) is less than 5% by weight, the effectiveness of both synthetic fibers and cotton will decrease. Furthermore, if the (d) tc content is less than 5% by weight, elasticity decreases.

When commercializing a fabric softener that requires components (a) to (d), the total amount of components (a) to (d) is preferably 4 to 40% by weight, considering the viscosity and handling properties of the product. is 6 to 30% by weight, particularly preferably 10 to 30% by weight.

The softening agent of the present invention further includes dimethylpolysiloxane,
By incorporating a silicone compound such as dimethylpolysiloxane partially modified with an amino group or a polyoxyalkylene group, particularly preferably a dimethylpolysiloxane partially modified with a polyoxyalkylene group, water absorption performance can be maintained without deterioration. The feel of softened clothing can be improved. These silicone compounds are component (a) ~
(d) * It is preferable to mix 0.3 to 5% by weight based on the total amount.

The softening agent of the present invention is conventionally widely used (b)
It has been found that the softening effect is almost the same as that of a fabric softener containing only the ingredient alone, but surprisingly, elastic softness can be obtained.

When the composition of the present invention is used as an aqueous liquid softener, 0.05 to 0.4% by weight of an inorganic electrolyte such as sodium chloride, calcium chloride, or magnesium chloride is added to adjust the viscosity.
It is desirable to add

The fabric softener of the present invention has high stability during long-term storage, but in order to stabilize it under even more severe storage conditions, polyoxyethylene (5 to 50 mol) alkyl or alkenyl (c
+□~24) A nonionic surfactant such as ether, a solvent such as propylene glycol or ethylene glycol, or urea can be blended. In addition, known esters, nonionic or cationic compounds, long chain alcohols, long chain fatty acids, etc., may be used in combination as flexible bases.

Pigments or dyes may also be included for product appearance, fluorescent brighteners for finished whiteness, and fragrances for use and after finishing.

〔Effect of the invention〕

The fabric softener of the present invention can impart sufficient flexibility, antistatic properties, and excellent elasticity to various fibers.

〔Example〕

Next, the present invention will be explained in detail with reference to Examples, but the present invention is not limited to these Examples.

Components (a) to (d) used in Examples and Comparative Examples are shown below.

Table (b) Composition of components Elasticity was evaluated.

Evaluation of flexibility and elasticity> (1) Processing method 2 kg of commercially available cotton towels and 1 kg of acrylic chassis were washed 5 times with commercially available detergent Attack (manufactured by Kao Corporation, registered trademark) in 3.5° DB hard water. Laundry (301 washing machine)
After removing the fiber treatment agent attached to each fiber, 1.5 g of the blended composition in Table 4 was added as an active ingredient, and 2
Processed at 5°C with in-component stirring.

In each case, 1% by weight of polyoxyethylene-modified dimethylpolysiloxane was blended based on the total amount of components (a) to (d).

(2) Evaluation method After drying the cloth treated with the above method indoors at 25°C165
It was left for 24 hours in a constant temperature and humidity room at %R1'l.

These fabrics were evaluated for flexibility and elasticity.

The softness and elasticity were evaluated using a pair of fabrics treated with 10 cc of a fabric softener containing 15% by weight of dihydrogenated beef tallow alkyldimethylammonium chloride as a control. The evaluation is expressed as follows.

+2: softer or more elastic than the control +1; slightly softer or more elastic than the control 0; same as the control -1; control is slightly softer or slightly less elastic than the control -2; control is soft or the control As shown in Table 5, which has lower elasticity, by using the compound of the present invention, an effect that satisfies both flexibility and elasticity can be obtained.

Examples 13 to 15, Comparative Examples 4 and 5 In order to evaluate the elasticity of the compositions having the formulations shown in Table 6, the stacking height of cotton towels was measured.

Evaluation of elasticity> Cotton towels treated in the same manner as in Examples 1 to 12 were folded into 8 and stacked in 3 layers, and after pressurizing at a pressure of 5 g/cd for 5 minutes, the pressure was removed and the height of the towel was adjusted. was measured. The higher the height of the towel, the better the elasticity.

Claims (1)

[Scope of Claims] 1 Consists of an aqueous dispersion that essentially contains the following components (a) to (d), and the weight ratio of the components (a) to (d) is (a)/
[(a)+(b)+(c)+(d)]=0.2/100
~5/100(b)/[(a)+(b)+(c)+(d
)]=5/100~90/100(c)/[(a)+(
b)+(c)+(d)]=0.2/100~18/10
0(d)/[(a)+(b)+(c)+(d)]=5/
100 to 90/100, and contains components (a) to (d) in a total amount of 4 to 40% by weight. (a) Component: One or more compounds selected from the following (a-1) to (a-3) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (a-1) ▲ Mathematical formulas, chemical formulas, There are tables, etc. ▼ (a-2) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (a-3) (b) Component: One type selected from the following (b-1) to (b-3) or Two or more types of compounds ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (b-1) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (b-2) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (b-3) (c) Component: One or more compounds selected from the following (c-1) and (c-2) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (c-1) ▲ Mathematical formulas, chemical formulas, tables, etc. ▼ (c-2) [In the formula, R_1, R_5, R_7: Alkyl group or alkenyl group having 12 to 22 carbon atoms R_2, R_3: Methyl group, ethyl group, hydroxyethyl group or hydroxypropyl group R_4, R_6, R_8: Alkyl group or alkenyl group having 11 to 21 carbon atoms W: Methyl group or ethyl group X: Halogen, CH_3SO_4 or C_2H_5SO
_4m: means 2 or 3. ] (d) Component: Compound represented by the following general formula (d) ▲ Numerical formulas, chemical formulas, tables, etc. are available ▼ (d) [In the formula, R_9: an alkyl group or alkenyl group having 11 to 21 carbon atoms Y: Cl ,Br,R_1_0OSO_3(R_1_0;
CH_3 or C_2H_5), ▲There are mathematical formulas, chemical formulas, tables, etc.▼ or R_1_1OPO_3 (R_1_1; alkyl group or alkenyl group having 8 to 18 carbon atoms) m: 2 or 3. 2. The fabric softener according to claim 1, wherein the (a) component is a compound represented by (a-3), the (b) component is a compound represented by (b-3), and the (c) component is a compound represented by (c-2). 3. Furthermore, it contains 0.3 to 5% by weight of dimethylpolysiloxane and/or dimethylpolysiloxane partially modified with an amino group or a polyoxyalkylene group based on the total amount of components (a) to (d). The softening agent according to claim 1 or 2. 4. The fabric softener according to claim 3, wherein the modified dimethylpolysiloxane is a dimethylpolysiloxane partially modified with polyoxyalkylene groups.