JPH0319975A - Liquid softening finishing agent - Google Patents

Abstract

PURPOSE:To obtain the subject finishing agent, capable of imparting flexibility and resilience to various fibers and excellent in preservation stability by blending a specific quaternary ammonium salt with a fatty acid diethanolamide, ethylene glycols and specified adduct in specific amounts. CONSTITUTION:A finishing agent obtained by blending (A) 4-20wt.% quaternary ammonium salt expressed by formula I (R1 and R2 are 12-22C alkyl; R3 and R4 are methyl, ethyl or hydroxyethyl; X is halogen or methylsulfuric acid residue, etc.) with (B) a fatty acid diethanolamide containing 14-18C saturated or unsaturated acryl groups, (C) ethylene glycol or propylene glycol and (D) a 10-50mol alkylene oxide adduct consisting essentially of an 8-22C alcohol at weight ratios of 2/98<B/A<10/90, 15/85<C(A+B)<40/60 and 5/95<D/(A+B)<15/85. Furthermore, a small amount of an ester amine expressed by formula II (R is 13-17C saturated or unsaturated alkyl; X is H or COR) is blended to remarkably improve resilience of cotton fiber.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a fabric softener, and more specifically, a fabric softener that has storage stability and can impart excellent flexibility and elasticity (fluffiness) to various fibers. This article concerns a good liquid fabric softener. [Problems to be solved by conventional techniques and inventions] Currently,
Most of the commercially available household fabric softeners are made up of quaternary ammonium salts with one or two long-chain alkyl groups in each molecule. The reason for this is that quaternary ammonium salts have a good softening effect on various fibers in small amounts. The above-mentioned quaternary ammonium salts have a remarkable softening effect on cotton, but they also have more elasticity (
A fabric softener that gives a fluffy feeling is desired. [Means for Solving the Problems] As a result of intensive research to solve the above problems, the present inventors have found that
The present invention has been successfully completed.

That is, the present invention comprises the following component (a). (b), (C) and (d)(a)
General formula (1) [In the formula, RI+ Rz each represents a saturated or unsaturated alkyl group having 12 to 22 carbon atoms, R3 and R4 represent a methyl group, an ethyl group, or a hydroxyethyl group, and X represents a halogen, Represents a methyl sulfate residue or an ethyl sulfate residue.

] Compound (c) Fatty acid diethanolate having a saturated or unsaturated acyl group having 14 to 18 carbon atoms (C) Ethylene glycol or propylene glycol (d) Ethylene oxide of an alcohol having 8 to 22 carbon atoms Contains 10 to 50 mole adduct of alkylene oxide with essential components, (a) 4 to 20% by weight, (b) / (a) weight ratio 2 /98 < (b) / (
a) < 10/90, (C)/ { (a) + (
b)) Weight ratio is 15/85<(C)/((a)+(
b)) <40/60, (d)/((a)+(b)}weight ratio is 5/95<(d)/((a)+(b))<15/8
The present invention provides a liquid fabric softener characterized by the following properties: The compound (a) represented by the general formula (1) used in the present invention has conventionally been generally used as a flexible base, and includes dicured beef tallow alkyldimethylammonium chloride, dioleyldimethylammonium chloride, Examples include lauryl eicosyl dimethyl ammonium chloride. In the present invention, component (a) is blended in the composition in an amount of 4 to 20% by weight.

Fatty acid diethanolamide (b) used in the present invention is known to be effective as an antistatic agent, etc., and has the following general formula (3) 0 [wherein R is a saturated or unsaturated carbon number of 13 to 17]. Represents a saturated alkyl group. ] It is a compound represented by The liquid softener of the present invention has a blending ratio of the above (a) ingredient and 0)) component (b)/(a) weight ratio of 2/98<(
It is important that the ratio is in the range b)/(a)<10/90, and only within this range can elasticity be imparted to clothing, especially cotton fibers, without impairing flexibility. The mixing ratio of (a) precepts and (b) precepts is 2/98
If it is less than 10/90, the effect of imparting elasticity is small, and on the contrary, it is 10/90.
If this is the case, the cations in the flexible base consisting of (a) precepts and (b) precepts will decrease, resulting in a decrease in adsorption to fibers and a decrease in flexibility. (C) Ethylene glycol or propylene glycol for precepts and (d) 8 to 22 carbon atoms for precepts
A 10 to 50 mole adduct of alcohol with alkylene oxide is essential for improving long-term storage stability in the liquid fabric softener of the present invention. A stable fabric softener system has a (c)/((a) ten(b)) weight ratio of 15
/85<(C)/ {(a)+(b)) <40/60
, (a)/{(a) + (b)) 5/ in weight ratio
Obtained within the range of 95<(d)/((a)+(b))<15/85. Component (d) suitable for use in the present invention includes 10 to 50 moles of ethylene oxide adduct of oleyl alcohol or a branched alcohol having 12 to 22 carbon atoms. The liquid softener of the present invention further has the following general formula (2) [wherein R represents a saturated or unsaturated alkyl group having 13 to 17 carbon atoms, and O 11 X represents H or 1C-R] represent. ] By containing a small amount of ester amine (e), the elasticity of cotton fibers is further improved. At that time, (e) e. The mixing ratio of minutes and (b) precepts is (e) /
(b) The weight ratio is preferably in the range of 1 to 5/99 to 95. The liquid fabric softener of the present invention may contain inorganic salts such as common salt, pigments, dyes, optical brighteners, fragrances, antifoaming agents, etc., as required. [Effects of the Invention] The fabric softener of the present invention imparts sufficient flexibility and elasticity to various fibers, and has excellent storage stability. [Examples] Next, the present invention will be explained in detail with examples, but the present invention is not limited to these examples. Examples 1 to 5, Comparative Examples 1 to 3 The liquid fabric softeners having the formulations shown in Table 1 were evaluated for flexibility, elasticity, and storage stability using the following methods. <Evaluation of flexibility and elasticity> (1) Processing method 3 kg of commercially available cotton towels were washed 5 times in 3.5° DH hard water using a commercially available detergent Zab (manufactured by Kao Corporation, registered trademark) (30 liter washing machine). ), and after removing the fiber treatment agent attached to each fiber, the fibers were treated with 10 cc of the liquid fabric softener shown in Table 1 at 25°C for 1 minute with stirring. (2) Evaluation method After drying the cloth treated with the above method indoors, dry it at 25°C and 65°C.
It was left in a constant temperature and humidity room at %RH for 24 hours. The flexibility and elasticity of these fabrics were evaluated. The softness and elasticity were evaluated using a pair of fabrics treated with 20 cc of a fabric softener consisting of 13% 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 O; same as the control -1; control is slightly softer or slightly less elastic than the control -2: control is soft or slightly more elastic than the control Evaluation of storage stability with lower elasticity> A liquid fabric softener with the formulation shown in Table 1 was heated at -10°C for 15 minutes.
It was stored for 1 day and then the viscosity was measured when it was returned to room temperature. Storage stability is good if the viscosity is 300 cps or less. Table 1 shows these evaluation results.

As Box 22 also shows in Table 1, by using the liquid fabric softener of the present invention, satisfactory effects can be obtained in terms of flexibility, elasticity, and storage stability. Examples 6 to 7, Comparative Example 4 In order to evaluate the elasticity of the liquid fabric softener having the formulation shown in Table 1, the stacking height of cotton towels was measured. <Evaluation of elasticity> Cotton towels treated in the same manner as in Examples 1 to 5 were folded in eight and stacked in three layers, and after applying pressure at a pressure of 5 g/cm'' for 5 minutes, the pressure was removed and the height of the towel was increased. The higher the height of the towel, the better the elasticity. The results are shown in Table 2. Table 2 Evaluation of elasticity As shown in Table 2, the towels were treated with the liquid fabric softener of the present invention. The towel has good elasticity.

Claims (1)

[Claims] 1. The following components (a), (b), (c) and (d) (a)
General formula (1) ▲There are mathematical formulas, chemical formulas, tables, etc.▼・・・・・・・・・
(1) [In the formula, R_1 and R_2 each represent a saturated or unsaturated alkyl group having 12 to 22 carbon atoms, R_3 and R_4 represent a methyl group, ethyl group, or hydroxyethyl group, and X represents a halogen or methyl Represents a sulfuric acid residue or an ethyl sulfuric acid residue. ] A compound represented by (b) a fatty acid diethanolamide having a saturated or unsaturated acyl group having 14 to 18 carbon atoms (c) ethylene glycol or propylene glycol (d) an alcohol having 8 to 22 carbon atoms containing ethylene oxide as essential contains 10 to 50 moles of alkylene oxide adduct, component (a) is 4 to 20% by weight, and (b)/(a) weight ratio is 2/98<(b)/(a)<1.
0/90, (c)/{(a)+(b)} weight ratio is 15/85<(c)/{(a)+(b)}<40/60
, (d)/{(a)+(b)} weight ratio is 5/95<(d)/{(a)+(b)}<15/85. 2 10 to 50 moles of alkylene oxide adduct of alcohol having 8 to 22 carbon atoms (d) is ethylene oxide 10 of unsaturated alcohol or branched alcohol having 8 to 22 carbon atoms
The liquid fabric softener of claim 1, which is a ˜50 molar adduct. 3 General formula (2) below ▲There are mathematical formulas, chemical formulas, tables, etc.▼・・・・・・・・・
(2) [In the formula, R represents a saturated or unsaturated alkyl group having 13 to 17 carbon atoms, and X represents H or ▲There are numerical formulas, chemical formulas, tables, etc.▼. ] The liquid fabric softener according to claim 1, characterized in that it contains the ester amine (e) represented by the formula (e)/(b) in a weight ratio of 1 to 5/99 to 95.