JPH026665A - Softening and finishing agent for cloth - Google Patents

Abstract

PURPOSE:To obtain the title finishing agent providing various kinds of fibers with excellent flexibility and elasticity comprising a quaternary salt of a specific partially amidated substance and/or an adduct of the amidated substance with an alkylene oxide or a salt thereof as an essential component. CONSTITUTION:(A) A quaternary salt of a partially amidated substance of a, condensate of >=4N polyalkylenepolyamine or polyethyleneimine and 12-24C fatty acid (e.g., coconut, palm or beef tallow) and/or (B) an adduct of the partially amidated substance of a condensate of >=4N polyalkylenepolyamine or polyethyleneimine and 12-24C fatty acid with an alkylene oxide or a quaternary salt thereof is used as an essential component for a softening base to give a liquid softener for home use providing various kinds of fibers with excellent flexibility and elasticity. A liquid softener comprising the partially amidated substance containing two or more secondary or tertiary amino groups or containing 15-80wt.% di-long-chain alkyl or alkenyldimethylammonium in the softening base is especially preferable with respect to flexibility and elasticity.

Description

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

[Problems to be solved by conventional techniques and inventions] Currently,
Most products commercially available as household softeners are compositions whose main component is a quaternary ammonium salt having one to two long-chain alkyl groups in one molecule. 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 it is difficult to say that the effect is sufficient on synthetic fibers such as acrylic, polyester, and polyamide. When treated at high concentrations, the elasticity of clothing may decrease and the texture may be impaired.

[Means to solve the problem]

As a result of intensive research to solve the above drawbacks, the present inventors found that
This led to the present invention.

That is, the present invention uses (a) and/or (b) as a flexible base.
The present invention provides a fabric softener characterized by containing the component ) as an essential component.

(a) A polyalkylene polyamine having 4 or more nitrogen atoms or a quaternary salt of a partially amidated product which is a condensation product of polyethyleneimine and a fatty acid having 12 to 24 carbon atoms (b) A polyalkylene polyamine having 4 or more nitrogen atoms Or an alkylene oxide adduct of a partially amidated product which is a condensation product of polyethyleneimine and a fatty acid having 12 to 24 carbon atoms, or a quaternary salt thereof The polyalkylene polyamine having 4 or more nitrogen atoms used in the present invention is triethylene. Examples include tetramine, tetraethylenepentamine, and pentaethylenehexamine. 'Also, polyethyleneimine is generally obtained by ring-opening polymerization of ethyleneimine, and the number of nitrogen atoms is preferably 6 or more and 30 or less.

Fatty acids having 12 to 24 carbon atoms are generally derived from natural oils such as coconut, palm, beef tallow, rapeseed, and fish oil, but chemically synthesized fatty acids can also be used.

The amidation reaction is carried out by a conventional method, but it is preferable to amidate a portion of the amino groups of the polyamine so that one or more, preferably two or more, non-amidated nitrogen atoms are present in the molecule. In addition, in the amidation reaction, a cyclization reaction partially proceeds at the same time as the condensation reaction, and partially amidacillin having an imidacilline ring is produced, resulting in a mixture with a sedating compound. During the amidation reaction, the preferred molar ratio of the fatty acid to be reacted with the polyamine compound varies depending on the number of nitrogen atoms in the polyamine used, but is 0.2 to 0.8 to 1 nitrogen.
mole, more preferably 0.3 to 0.6 mole.

Component (a) of the present invention is a product obtained by quaternizing the amide 7 group remaining in the partially amidated product obtained in this way using a quaternizing agent such as methyl chloride, dimethyl sulfate, or diethyl sulfate. , component (b) is a compound obtained by adding an alkylene oxide such as ethylene oxide or propylene oxide to the primary or secondary amino group among the amino groups remaining in the partially amidated product obtained in this way, or a compound thereof. It is grade salt.

The compound of the present invention has almost the same softening effect as the below-mentioned flexible base that has been widely used as a flexible base, but surprisingly it has been found that elastic softness can be obtained. Ta.

The softening agent of the present invention has a partially amidated derivative as an essential component, but it also includes conventionally known cationic softening bases such as the following general formulas (1) to (3), and their precursors. An amine or a neutralized product of the amine can be used in combination. Furthermore, polyols such as glycerin and pentaerythritol, partial esters of long chain fatty acids, long chain fatty acids, etc. may be used in combination.

i) Ammonium salt represented by the following formula (1) or (2) ii) Imidazolinium salt represented by the following formula (3) [wherein R,, R2, R6 and R1 each have 10 to 10 carbon atoms]
24 alkyl group, alkenyl group, or β-hydroxyalkyl group, and R3, R, and R5 are each an alkyl group or hydroxyalkyl group having 1 to 3 carbon atoms, a benzyl group, or -(C2H40), -H (however, q is 1~
3), and X represents a norogen or a monoalkyl sulfate group having an alkyl group having 1 to 3 carbon atoms. ] Specifically, dodecyltrimethylammonium chloride, hexadecyldimethylethylammonium bromide, occudecyltrimethylammonium chloride, didodecyldimethylammonium chloride, dihexadenyldimethylammonium chloride, dioctadecyldimethylammonium chloride, dihydrogenated beef tallow Alkyl dimethyl ammonium, di-hardened palm oil chloride alkyl dimethyl ammonium, bis(
β-hydroxystearyl) diethylammonium chloride, 2-heptadecyl-1-methyl-1-[(2-
octadecanoylamino)ethyl imidazolinium methyl sulfate, di[(2-dodecanoylamino)ethyl fudimethylammonium methyl sulfate, di[
One or a mixture of two or more of (2-octadecanoylamino)ethylcomethylethylammonium ethyl sulfate.

In particular, it is preferable to use it in combination with the di-long chain alkyl or alkenyl dimethyl ammonium salt of formula (1), and the appropriate amount of the di-long chain alkyl or alkenyl dimethyl ammonium salt in the flexible base is 15 to 80% by weight. .

Furthermore, when making a liquid softener, polyethylene glycol-based nonionic surfactants, water-soluble salts such as common salt and ammonium chloride, propylene glycol and ethylene glycol are used to improve storage stability and adjust viscosity. It is possible to blend such solvents or urea.

Pigments or dyes can also be added for the appearance of the product, optical brighteners for the whiteness of the finished product, and fragrances and antifoaming agents for use and after finishing.

〔Effect of the invention〕

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

〔Example〕

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

A method for producing the polyamide compound derivative used in the present invention will be illustrated by a synthesis example.

Synthesis example 284g of stearic acid and 11g of tetraethylenepencumin
3g was added and heated at 120-140°C for 4 hours. At that time, about 17g of water was distilled out. Then 6 at 140-150℃
After heating for a period of time, a condensate with an acid value of 2.4 was obtained. Further, the mixture was quaternized with 210 g of methyl chloride in an ethanol/water solvent according to a conventional method to obtain Compound 1 of the present invention.

Compounds 2 to 8 of the present invention as shown in Table 1 were synthesized in the same manner.

Table 1 Composition of the compound of the present invention 1) Ratio (mole) of fatty acid to the number of nitrogen atoms in the polyamine compound 2) A: Quaternized product with methyl chloride B:
Quaternized product of 1 mole of ethylene oxide adduct with methyl chloride C゛Quaternized product of 1 mole of ethylene oxide adduct with methyl chloride 3) Average molecular weight 600 Examples 1 to 13 Regarding the compositions of the formulations shown in Table 2, Flexibility, elasticity, and water absorption were evaluated using the following methods.

Evaluation of flexibility and elasticity> (1) Processing method 2 kg of commercially available cotton towels and 1 kg of acrylic chassis were washed with commercially available detergent Zab (manufactured by Kao Corporation) in 3.5°OH hard water.
After washing (registered trademark) 5 times (30β washing machine) to remove the fiber treatment agent attached to each fiber, 1Qcc of a 15% dispersion of the blended composition in Table 2 was stirred at 25°C for 1 minute. Processed with.

(2) Evaluation method After drying the cloth treated with the above method indoors, 25℃, 65%
It was left in a constant temperature and humidity room at RH for 24 hours.

These fabrics were evaluated for flexibility and elasticity.

The softness and elasticity were evaluated using a pair of fabrics treated with IQcc, a fabric softener containing 15% dihydrogenated 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 2; Control is softer or less elastic Table As shown in 2, by using the compound of the present invention, the effect of satisfying both flexibility and elasticity can be obtained for both cotton and synthetic fibers.

Table 2 Flexibility, Elasticity, Water Absorption Examples 14 to 16, Comparative Example 1.2 In order to evaluate the elasticity of the compositions with the formulations shown in Table 3, the stacking height of cotton towels was measured.

<Evaluation of elasticity> Cotton towels treated in the same manner as in Examples 1 to 13 were folded into 8 and stacked in 3 layers, and after pressurizing at a pressure of 5 g/cm2 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.

Table 3 Elasticity evaluation (towel stacking height) 1) 2
-a; Dihardened beef tallow alkyldimethylammonium chloride 2-b; Pentaerythritol distearate 2-c
; Hehenyl stearyl dimethyl ammonium chloride 2) Compound/Other soft ingredients (weight ratio) 117 2-a, di-hardened beef tallow alkyl dimethyl ammonium chloride 2-d; di-hardened beef tallow alkyl dimethyl ammonium chloride/condensation of diethylene triamine and stearic acid (1.0/1.0) mixture compound/other soft ingredients (weight ratio)

Claims (1)

[Scope of Claims] 1. A fabric softening agent characterized by containing components (a) and/or (b) as essential components as a softening base. (a) A polyalkylene polyamine having 4 or more nitrogen atoms or a quaternary salt of a partially amidated product which is a condensation product of polyethyleneimine and a fatty acid having 12 to 24 carbon atoms (b) A polyalkylene polyamine having 4 or more nitrogen atoms or an alkylene oxide adduct of a partially amidated product which is a condensation product of polyethyleneimine and a fatty acid having 12 to 24 carbon atoms, or a quaternary salt thereof 2. The partially amidated product has two or more secondary or tertiary amino groups. The fabric softener according to claim 1. 3. Claim 1, wherein the flexible base contains 15 to 80% by weight of di-long chain alkyl or alkenyl dimethyl ammonium salt.
Or the fabric softener according to 2.