KR20110020615A - Transparent fabric softner composition - Google Patents

Abstract

PURPOSE: A transparent fabric softener composition is provided to ensure phase stability and to prevent phase separation even in case of storing for a long time. CONSTITUTION: A transparent fabric softener composition contains 5-30 weight parts of cationic surfactant, 1-20 weight parts of stabilizing chemicals, and 1-15 weight parts of solvent of which logP is over 2. P is the ratio of partition coefficient to water and octanol of a solvent.

Description

Transparent fabric softner composition

The present invention relates to a transparent fiber softener composition, and more particularly, to a transparent fiber softener composition having excellent fiber softness and less foaming, which does not require the use of an antifoaming agent, maintains transparency stably and has excellent storage stability.

Typical household fabric softeners are types in which cationic flexible components are dispersed and have an opaque appearance. Recently, however, there is a growing interest in fabric softener compositions having a transparent or translucent appearance. Cationic surfactants, which are mainly used as flexible components, have considerable hydrophobicity on their own and have extremely low solubility in water, and therefore, there is considerable technical effort to provide a transparent and stable softener composition using them.

Initially transparent or translucent softeners used common cationic surfactants and high content solvents such as dialkyldimethylammonium chloride, alkylester quaternary ammonium salts derived from triethanolamine, and alkylimidazoline-based quaternary ammonium salts. However, these softeners do not have sufficient stability, such as opacity or phase separation when stored at low temperature and high temperature, and also have problems such as limitation of application and cost increase due to inherent odor. Accordingly, in order to solve this problem, US Patent 2002 / 35,053 discloses a transparent softener formulation technology using a specific mole number of alkylene oxide added nonionic surfactant as a stabilizer, and in Korea Patent 10-2006-59179, an asymmetric alkyl group or A transparent softener composition using an esteramide-type ammonium salt cationic surfactant containing an alkenyl group is disclosed. The compositions have the advantage of stability over time or transparency, but there is a problem of excessive foaming due to the asymmetric structure of the nonionic surfactant or cationic surfactant used as a stabilizer. As a means for solving this problem, the antifoaming agent such as silicone antifoaming agent may be prescribed, but in the case of the antifoaming agent, there is another problem such as deterioration of transparency and phase stability.

An object of the present invention to solve the above problems is to provide a transparent fiber softener composition having excellent fiber softness and less foaming, there is no need to use an antifoaming agent, transparency is stable and storage stability is excellent.

The present invention to achieve the above object,

About total composition

(a) 5 to 30 parts by weight of cationic surfactant;

(b) 1 to 20 parts by weight of stabilizer; And

(c) 1 to 15 parts by weight of a solvent having a log P of 2 or more,

P is the ratio of the partition coefficient to water and octanol of the solvent, the log P provides a transparent fabric softener composition is calculated by the following equation:

[Equation 1]

The cationic surfactant may be a single or a mixture thereof selected from the group consisting of quaternary ammonium salts represented by the following Chemical Formula 1 or Chemical Formula 2 and precursors thereof:

[Formula 1]

(In Chemical Formula 1,

R ₁ is C ₁ -C ₆ alkyl, C ₁ -C ₆ hydroxyalkyl or benzyl;

R ₂ is C ₁ -C ₃ alkyl;

,

,

또는

이며;P is each

,

,

or

Is;

R ₃ is C ₁₁ -C ₂₂ straight or branched alkyl or alkenyl;

l is an integer from 1 to 4;

m is an integer from 0 to 4;

n is an integer from 1 to 3;

X is Cl ^-, Br ^- or CH ₃ OSO ₃ ^- a).

[Formula 2]

(In Chemical Formula 2,

R ₄ and R ₆ are C ₁₁ -C ₂₂ straight or branched alkyl or alkenyl;

Each R ₅ is independently C ₁ -C ₆ alkyl, C ₁ -C ₆ hydroxyalkyl or benzyl;

X is Cl ^-, Br ^- or CH ₃ OSO ₃ ^- a).

The stabilizer may be represented by the following formula (3):

(3)

(In Chemical Formula 3,

R ₇ Is C ₆ -C ₁₂ straight or branched alkyl or alkenyl;

R ₈ to R ₁₀ are each independently alkyl having 1 to 3 carbons;

Y is Cl ^-, Br ^- or CH ₃ OSO ₃ ^- a).

The solvent having a log P of 2 or more may be a single or a mixture thereof selected from the group consisting of diethylene glycol hexyl ether, diethylene glycol heptyl ether, diethylene glycol octyl ether, and dipropylene glycol hexyl ether.

The ratio [{(b) + (c)} / (a)] of the sum of the weights of the stabilizer and the solvent having a log P of 2 or more and the weight of the cationic surfactant may be 0.5 to 1.0.

The fabric softener of the present invention does not need to use an antifoaming agent because foaming is considerably less during washing and rinsing, and transparency is stably maintained and phase stability does not occur even if stored for a long time.

Fabric softener of the present invention is excellent in the ability to impart flexibility to clothing and textile products, which is the basic performance of the fabric softener, antistatic effect, and provides aesthetics to the consumer with a transparent appearance.

The fabric softener of the present invention is excellent in dispersibility and solubility so that less residue is left on the fibers during rinsing.

Hereinafter, the present invention will be described in detail so that those skilled in the art can easily practice.

The present invention may be variously modified and may take various forms, and only the specific embodiments thereof are described here. It is to be understood, however, that the present invention is not limited to the specific forms referred to herein, but rather to include all modifications, equivalents and substitutions within the spirit and scope of the invention as defined by the appended claims. .

The fabric softener composition of the present invention comprises a cationic surfactant as the cationic softening component.

The cationic surfactant may be included in an amount of 5 to 30 parts by weight, preferably 10 to 20 parts by weight, based on the total composition. When included in less than 5 parts by weight may reduce the ability to impart flexibility to the fiber, when added in excess of 30 parts by weight, the viscosity rises, it may be difficult to prepare a stable and transparent composition.

The cationic surfactant may be a single or a mixture thereof selected from the group consisting of quaternary ammonium salts represented by the following Chemical Formula 1 or Chemical Formula 2 and precursors thereof:

[Formula 1]

,

,

또는

이며; l 은 1 내지 4 의 정수이며; m 은 0 내지 4 의 정수이고; n 은 1 내지 3 의 정수이며; X 는 Cl^-, Br^- 또는 CH₃OSO₃ ^- 이다. In formula 1, R ₁ is C ₁ -C ₆ alkyl, C ₁ -C ₆ hydroxyalkyl or benzyl, R ₂ is C ₁ -C ₃ alkyl; R ₃ is C ₁₁ -C ₂₂ straight or branched alkyl or alkenyl; P is each

,

,

or

Is; l is an integer from 1 to 4; m is an integer from 0 to 4; n is an integer from 1 to 3; X is Cl ^-, Br ^- or CH ₃ OSO ₃ ^- a.

[Formula 2]

In Formula 2, R ₆ and R ₈ are C ₁₁ -C ₂₂ linear or branched alkyl or alkenyl; Each R ₇ is independently C ₁ -C ₆ alkyl, C ₁ -C ₆ hydroxyalkyl or benzyl; X is Cl ^-, Br ^- or CH ₃ OSO ₃ ^- a.

Specific examples of the cationic surfactant include N, N-di (oleyl ester ethoxylate ethyl), N-methyl-N-hydroxyethylammoniummethyl sulfate, and N-methyl oleyl amidoethyl-2-oleyl. Imidazolinium methyl sulfate and the like, but is not limited thereto.

The fabric softener composition of the present invention comprises a stabilizer. The stabilizer of the present invention serves to keep the transparency of the composition stable and at the same time reduces the occurrence of bubbles during washing and rinsing.

The stabilizer may be included in an amount of 1 to 20 parts by weight, preferably 3 to 15 parts by weight, based on the total composition. When included in less than 1 part by weight, it may be difficult to achieve the object of the present invention to maintain transparency for a long time, when included in more than 20 parts by weight may cause bubble generation, transparency may be reduced.

The stabilizer may be an alkylammonium salt represented by Formula 3 below:

(3)

In Formula 3, R ₇ Is C ₆ -C ₁₂ straight or branched alkyl or alkenyl, R ₈ to R ₁₀ are each independently alkyl having 1 to 3 carbon atoms, and Y is Cl ⁻ , Br ⁻ or CH ₃ OSO ₃ ⁻ . Preferably, the R ₈ to R ₁₀ may be the same, it may be a methyl group.

Stabilizer represented by the formula (3) is a substituent bonded to quaternary ammonium R ₇ And R ₈ to R ₁₀ is not too long to be effective for clearing stabilization, reducing foaming during washing and rinsing.

Specific examples of the stabilizer include, but are not limited to, decyltrimethylammoniummethyl sulfate, lauryltrimethylammoniummethyl sulfate, myristyltrimethylamnoniummethyl sulfate, and the like.

The fabric softener composition of the present invention comprises a solvent having a log P of 2 or more. The solvent has hydrophobicity and hydrophilicity at the same time to act as a co-surfactant and facilitate the formation of a microemulsion phase to maintain a stable transparency of the composition at low and high temperatures and to reduce the foaming during washing and rinsing.

The solvent may be included in an amount of 1 to 15 parts by weight, preferably 3 to 10 parts by weight, based on the composition. When included in less than 1 part by weight, it may be difficult to achieve the object of the present invention to maintain stability at low and high temperatures, when contained in more than 15 parts by weight of the composition may not be good, irritating to the skin Can give

P in the log P is a value representing the partition coefficient for the water and octanol (octanol) of the solvent, the partition coefficient refers to the ratio of the concentration for each solvent of a substance in the two kinds of non-mixing solvent. The distribution coefficient shows the degree of hydrophilicity or hydrophobicity of the material. The log P can be calculated by the following equation:

[Equation 1]

In the solvent of the present invention, the log P may be 2 or more. When the log P is 2 or more, both hydrophilicity and hydrophobicity are simultaneously used, and the role of the surfactant is also facilitated to facilitate the formation of the microemulsion phase of the composition so that transparency can be stably ensured. In addition, due to its hydrophobicity does not cause foaming can be an effective solvent in a transparent composition.

Specific examples of the solvent include, but are not limited to, diethylene glycol hexyl ether (hexyl carbitol), diethylene glycol heptyl ether, diethylene glycol octyl ether, or dipropylene glycol hexyl ether. In addition, the said solvent can be used individually or in mixture of 2 or more types.

The ratio (Y) of the sum of the weights of the stabilizer and the solvent and the weight of the cationic surfactant may be 0.5 to 1.

Y = {(weight of stabilizer) + (weight of solvent)} / (weight of cationic surfactant)

If the weight ratio is less than 0.5, since the content of the cationic surfactant is relatively high, transparency may not be easily secured due to the hydrophobicity of the cationic surfactant, and there is a concern that the bubble amount may increase during washing and rinsing. The relatively low content may reduce fiber flexibility, and the odor of the solvent itself may result in poor fragrance of the softener.

The fabric softener composition of the present invention may further include components known in the art as auxiliary components within the scope of not impairing the object of the present invention. Specific components and their contents can be arbitrarily adjusted by those skilled in the art. Specifically, antioxidants such as BHT, BHA, ascorbic acid may be used for phase stability of the final composition, and organic acids such as EDTA (ethylenediaminetetraacetate), NTA (nitrilotriacetate), citric acid may be used as chelating agents. Can be. Here, the polyvalent organic acids may also buffer the pH against time change. In addition, it may include flavors, pigments, antibacterial agents, anti-inflammation agents, anti-contamination agents, antifoaming agents, process agents, preservatives, anti-wrinkle agents and the like.

Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples. This is for the purpose of illustrating the invention only, and thus the scope of the invention is not limited.

< Example  1 to 14> fiber Softener  Produce

The fabric softener was prepared by conventional methods known in the art in the compositions of Tables 1 and 2 below. The units in Tables 1 and 2 below are parts by weight.

ingredient
Example One 2 3 4 5 6 7 8 9 Cationic Surfactants ¹⁾ 15 15 15 15 15 15 10 10 10 Decyltrimethyl
Ammonium methyl sulfate - - - 7 7 - - - 4 Lauryltrimethyl
Ammonium methyl sulfate 7 7 7 - - 4 4 6 - Diethylene glycol
Hexyl ether 5 - - 5 - 8 4 2 4 Dipropylene glycol
Hexyl ether - 5 - - 5 - - - - Diethylene glycol
Heptyl ether - - 5 - - - - - - Citric acid 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 incense 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Etc Quantity Quantity Quantity Quantity Quantity Quantity Quantity Quantity Quantity Purified water Balance Balance Balance Balance Balance Balance Balance Balance Balance Y (weight ratio) 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8

ingredient
Example 10 11 12 13 14 Cationic Surfactants ¹⁾ 5 30 25 16 30 Decyltrimethyl
Ammonium methyl sulfate - - - - - Lauryltrimethyl
Ammonium methyl sulfate One 5 20 15 15 Diethylene glycol
Hexyl ether 3 10 5 One 15 Dipropylene glycol
Hexyl ether - - - - - Diethylene glycol
Heptyl ether - - - - - Citric acid 0.1 0.1 0.1 0.1 0.1 incense 0.5 0.5 0.5 0.5 0.5 Etc Quantity Quantity Quantity Quantity Quantity Purified water Balance Balance Balance Balance Balance Y (weight ratio) 0.8 0.5 One One One

1) N, N-di (oleyl ester ethoxylate ethyl), N-methyl-N-hydroxyethylammoniummethyl sulfate

< Comparative example  1 to 15> fiber Softener  Produce

Fabric softeners were prepared by conventional methods known in the art in the compositions of Tables 3 and 4 below. The units of Tables 3 and 4 are parts by weight.

ingredient Comparative Example One 2 3 4 5 6 7 8 9 Cationic surfactant ^{1 )} 15 15 15 15 15 15 10 15 15 Lauryltrimethyl
Ammonium methyl sulfate - - 7 - - - - - - Myristyltrimethyl
Ammonium methyl sulfate 7 7 - - - - 4 7 7 Diethylene glycol
Hexyl ether - - - 7 7 7 - - - Dipropylene glycol
Hexyl ether 5 Diethylene glycol
Heptyl ether 5 Diethylene glycol
Butyl ether 5 Dipropylene glycol
Butyl ether 5 5 4 Lauryl Alcohol
Ethoxylate (EO 9 moles) 5 2 Dow Corning Q1-1247 ²⁾ 0.5 Citric acid 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 incense 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Etc Quantity Quantity Quantity Quantity Quantity Quantity Quantity Quantity Quantity Purified water Balance Balance Balance Balance Balance Balance Balance Balance Balance Y (weight ratio) 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.67 0.5

ingredient Comparative Example 10 11 12 13 14 15 Cationic surfactant ^{1 )} 15 15 15 15 35 3 Lauryltrimethyl
Ammonium methyl sulfate 25 0.5 7 7 7 7 Myristyltrimethyl
Ammonium methyl sulfate - - - - - - Diethylene glycol
Hexyl ether 5 5 0.5 20 5 5 Dipropylene glycol
Hexyl ether - - - - - - Diethylene glycol
Heptyl ether - - - - - - Diethylene glycol
Butyl ether - - - - - - Dipropylene glycol
Butyl ether - - - - - - Lauryl Alcohol
Ethoxylate (EO 9 moles) - - - - - - Dow Corning Q1-1247 ²⁾ - - - - - - Citric acid 0.1 0.1 0.1 0.1 0.1 0.1 incense 0.5 0.5 0.5 0.5 0.5 0.5 Etc Quantity Quantity Quantity Quantity Quantity Quantity Purified water Balance Balance Balance Balance Balance Balance Y (weight ratio) 2 0.37 0.5 1.8 0.34 4

1) N, N-di (oleyl ester ethoxylate ethyl), N-methyl-N-hydroxyethylammoniummethyl sulfate

2) dimethylsiloxane (silicone defoamer)

< Experimental Example  1> Transparency and transparency over time

After measuring the turbidity (NTU value) using a turbidimeter (Turbidimeter 2100AN) for the transparency according to the initial and temperature conditions of the fabric softener composition of Examples 1 to 15 and Comparative Examples 1 to 15 using a turbidimeter (Turbidimeter 2100AN), The stability of physical properties over time was determined according to the following evaluation criteria. The results are shown in Table 5 and Table 6.

[Turbidity and other visual evaluation criteria]

Less than 10 NTU: Fully transparent ◎

10 NTU or more ~ less than 30 NTU: unsuspended transparent ○

30 NTU or more to less than 80 NTU: unsuspended translucent △

80 NTU and above: suspended, opaque X

< Experimental Example  2> Stability  evaluation

Phase stability of the fiber softener compositions of Examples 1 to 15 and Comparative Examples 1 to 15 after time-dependent change was evaluated, and the results are shown in Tables 5 and 6.

No phase separation: X

Phase separation occurs: ○

< Experimental Example  3> Bubble Evaluation

Foams generated during washing of the fabric softener composition prepared according to Examples 1 to 15 and Comparative Examples 1 to 15 were measured by the following method, and the results are shown in Tables 5 and 6.

Washing machine: Automatic washing machine (10kg, Pulsator type)

Washing temperature: 25 ℃

Bath time: 200 g towels, 5 sheets / 30 ℓ

Test cloth: Towel (200 g, 100% cotton)

Softener Concentration: 0.67 g / ℓ

The degree of foaming on the surface of the wash water during rinsing was evaluated according to the following scale.

Radius 5 cm or less: ◎

Radius 5 cm or more and less than 10 cm: ○

Radius 10 cm or more and less than 15 cm: △

Radius 15 cm or more: X

< Experimental Example  4> Flexibility  evaluation

The softness of the fabric softener compositions of Examples 1 to 15 and Comparative Examples 1 to 15 was measured under the following conditions and methods, and the results are shown in Tables 5 and 6.

[Flexibility Measurement Condition]

Washing Machine: Automatic Washing Machine (Pulsator Type)

Washing temperature: 25 ℃

Bath time: 20 sheets of 200 g towel / 60 ℓ washing water

Test cloth: Towel (200 g, 100% cotton)

Softener Concentration: 0.67 g / ℓ

[Measuring flexibility]

The treated towels were touched by 20 panelists and scored according to their softness to the touch.

(1 point: very rough. 5 points: very soft.)

4.0 or higher: ◎

3.0 or more and less than 4.0: ○

2.0 or more and less than 3.0: △

Less than 2.0: X

Item
Conditions over time Example Temperature
℃ term
(week) One 2 3 4 5 6 7 8 9 10 11 12 13 14
Turbidity
20 4 Weeks ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ○ ◎ ◎ ◎ ◎ 5 4 Weeks ◎ ○ ○ ○ ○ ○ ◎ ◎ ○ △ ○ ○ ○ ○ 40 4 Weeks ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ○ ◎ ◎ ◎ ◎ Business
Qualitative
20 4 Weeks ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ 5 4 Weeks ○ ○ ○ X ○ ○ ○ ○ ○ X ○ ○ ○ ○ 40 4 Weeks ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ Bubble ○ ○ ○ ◎ ◎ ○ ○ ○ ◎ ○ ◎ ◎ ◎ ◎ Flexibility ◎ ◎ ◎ ◎ ◎ ◎ ○ ○ ○ △ ◎ ○ ○ ◎

Item
Conditions over time Comparative Example Temperature
℃ term
(week) One 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Turbidity
20 4 Weeks ◎ ◎ ◎ ◎ ◎ X X X △ ◎ X ○ ◎ X △ 5 4 Weeks ○ ○ △ △ △ X X X △ △ X X ○ X △ 40 4 Weeks ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ △ ◎ △ ◎ △ X △ Business
Qualitative
20 4 Weeks ○ ○ ○ ○ ○ ○ X X ○ ○ X X ○ X ○ 5 4 Weeks X X X X X X X X X ○ X X ○ X X 40 4 Weeks ○ ○ ○ ○ ○ ○ ○ ○ X X X ○ X X ○ Bubble ○ ○ ◎ △ △ △ ○ X ◎ ◎ ◎ △ ○ ○ ◎ Flexibility ◎ ◎ ◎ ◎ ◎ ◎ ○ ◎ ◎ ○ ○ ◎ ○ ◎ X

According to Tables 5 and 6, the fabric softener composition of the embodiment did not decrease the transparency over time, it can be seen that the transparency is maintained stable, excellent in the stability of the phase at low and high temperatures, the composition of the comparative example There was less foaming than that. In the composition of the comparative example without using the stabilizer and the solvent of the present invention, phase separation occurred at low temperature, so that the phase stability was not good, and the amount of bubbles was higher than that of the example.

As described above, the fabric softener composition of the present invention not only has excellent ability to impart flexibility to the fiber, which is a basic function of the fabric softener, but also gives aesthetics to the consumer with a transparent appearance, and has excellent phase stability at low and high temperatures. No phase separation occurs even after long term storage. In addition, it can be seen that the generation of bubbles at the time of washing and rinsing is suitable for use as a fabric softener.

Claims (5)

(a) 5 to 30 parts by weight of cationic surfactant; (b) 1 to 20 parts by weight of stabilizer; And (c) 1 to 15 parts by weight of a solvent having a log P of 2 or more, Wherein P is the ratio of the partition coefficient to water and octanol of the solvent log P is a transparent fabric softener composition, characterized in that calculated by [Equation 1]

The method of claim 1, The cationic surfactant is a transparent fabric softener composition, characterized in that the quaternary ammonium salt represented by the following formula (1) or (2), or a mixture thereof or a mixture thereof. [Formula 1]

(In Chemical Formula 1, R ₁ is C ₁ -C ₆ alkyl, C ₁ -C ₆ hydroxyalkyl or benzyl; R ₂ is C ₁ -C ₃ alkyl; P is each

,

,

or

Is; R ₃ is C ₁₁ -C ₂₂ straight or branched alkyl or alkenyl; l is an integer from 1 to 4; m is an integer from 0 to 4; n is an integer from 1 to 3; X is Cl ^-, Br ^- or CH ₃ OSO ₃ ^- a). [Formula 2]

(In Chemical Formula 2, R ₄ and R ₆ are C ₁₁ -C ₂₂ straight or branched alkyl or alkenyl; Each R ₅ is independently C ₁ -C ₆ alkyl, C ₁ -C ₆ hydroxyalkyl or benzyl; X is Cl ^-, Br ^- or CH ₃ OSO ₃ ^- a). The method of claim 1, Transparent fiber softener composition characterized in that the stabilizer is represented by the following formula (3): (3)

(In Chemical Formula 3, R ₇ Is C ₆ -C ₁₂ straight or branched alkyl or alkenyl; R ₈ to R ₁₀ are each independently alkyl having 1 to 3 carbons; Y is Cl ^-, Br ^- or CH ₃ OSO ₃ ^- a). The method of claim 1, The solvent having a log P of 2 or more is a diethylene glycol hexyl ether, a diethylene glycol heptyl ether, a diethylene glycol octyl ether, and a dipropylene glycol hexyl ether alone or a mixture thereof. . The method of claim 1, The ratio of the sum of the weights of the stabilizer and the solvent having a log P of 2 or more and the weight of the cationic surfactant [{(b) + (c)} / (a)] is 0.5 to 1.0, wherein the transparent fabric softener composition .