KR20200133662A - Fabric softner composition - Google Patents

Abstract

The present invention relates to a fabric softener composition comprising: (a) a nonionic surfactant; and (b) at least one selected from the group consisting of a cationic polymer not containing ester moiety and polydimethylsiloxane, thereby imparting smoothness and softness to the fiber and improving storage stability.

Description

Fabric softner composition {Fabric softner composition}

The present invention relates to a fabric softener composition.

Fabric softeners are widely used in homes to prevent static electricity from occurring in clothing and to provide flexibility of fibers, and their usage is gradually increasing.

In general, a cationic surfactant is used as a main component that provides a softening effect on the fabric in a fabric softener. However, the fabric softener containing a cationic surfactant has a problem of poor stability over time, such as an increase in viscosity during long-term storage after manufacture, or a lump that becomes lumpy in the product. In addition, if anionic surfactants are contained in fabric softeners or residual detergents, there is a serious problem that white residue remains on the fibers after washing by forming precipitates with cationic surfactants, replacing the main component that provides a softening effect. Research is continuing.

Fabric softeners have been using cationic surfactants as ingredients that provide a softening effect for more than 60 years since they were commercialized worldwide in the 1950s, but in recent years, these cationic surfactants have been discovered to be harmful to the human body. There is an increasing desire to avoid them.

The present invention was created to solve the problems of the prior art as described above, and an object of the present invention includes a cationic surfactant, more specifically, an ester containing quaternary ammonium salt (EQ) It is to provide a fabric softener composition that does not.

The fabric softener composition according to an aspect of the present invention includes (a) a nonionic surfactant, and (b) at least one selected from the group consisting of a cationic polymer and polydimethylsiloxane not containing an ester moiety. It is characterized.

Specifically, the nonionic surfactant may be an alkyl glucoside or lauryl alcohol ether.

Specifically, the nonionic surfactant may be an alkyl glucoside having 8 to 24 carbon atoms.

Specifically, the cationic polymer that does not include the ester moiety may be polyquaternium-10.

Specifically, the polydimethylsiloxane may be amodimethicone.

Specifically, at least one selected from the group consisting of the nonionic surfactant, and the cationic polymer and polydimethylsiloxane not including the ester moiety may be included in a weight ratio of 1:100 to 10:1.

Specifically, at least one selected from the group consisting of the nonionic surfactant and the cationic polymer and polydimethylsiloxane not including the ester moiety may be included in a weight ratio of 1:1.

Specifically, at least one selected from the group consisting of the nonionic surfactant and the cationic polymer and polydimethylsiloxane not containing the ester moiety is included in an amount of 0.1 to 10% by weight based on 100% by weight of the fabric softener composition. I can.

Specifically, the friction coefficient of the fibers treated with the fabric softener composition according to the present invention may be 0.8 or less.

The fabric softener composition according to the present invention has excellent fiber smoothness and fiber flexibility after use compared to a fabric softener composition containing a cationic surfactant, even if it does not substantially contain a cationic surfactant.

In addition, the fabric softener composition according to the present invention has excellent storage stability compared to a fabric softener composition containing a cationic surfactant.

Objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments. However, these examples are for illustrative purposes only, and the scope of the present invention is not limited to these examples. In addition, in describing the present invention, when it is determined that a detailed description of related known technologies may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

Hereinafter, "smoothness" may be expressed as a coefficient of friction represented by the surface of fibers such as clothing after using the fabric softener composition, and may be represented by a relative value according to the composition of the fabric softener composition.

Hereinafter, the "softening effect" may be expressed as a bending value when fibers such as clothing are bent after using the fabric softener composition, and may be expressed as a relative value according to the composition of the fabric softener composition.

Hereinafter, "substantially not included" may mean preferably 0.0001 to 5% by weight, more preferably 0.001 to 3% by weight, even more preferably 0.01 to 1% by weight, very preferably 0 It may mean that it is included in% by weight.

The fabric softener composition according to an embodiment of the present invention comprises at least one selected from the group consisting of (a) a nonionic surfactant, and (b) a cationic polymer that does not contain an ester moiety, and polydimethylsiloxane. .

In the present invention, (a) a nonionic surfactant is soluble in water but not ionized, and may include both a hydrophilic unit and a hydrophobic unit. For example, the nonionic surfactant may be a polymer formed by block polymerization or graft polymerization of a hydrophilic unit and a hydrophobic unit, but is not limited thereto.

In the present invention, (a) the nonionic surfactant is included in the fabric softener composition to reduce the surface tension of the surface of fibers such as clothing, thereby improving the adhesion to the surface of the component providing a softening effect to be described later.

In the present invention (a) the nonionic surfactant may be an alkyl glucoside (AG, Alkyl Glucoside) or lauryl alcohol ether.

The alkyl glucoside may be an alkyl polyglucoside having the structure of Formula 1 below.

In the formula, n and m are natural numbers, m is 1 to 10, and n is 1 to 30.

In the present invention, the alkyl glucoside may have 8 to 24 carbon atoms, and may be prepared using starch and fat, but may be purchased and used commercially at home and abroad.

Lauryl Alcohol Ether (LAE) may be an ethoxylate reaction product of lauryl alcohol, and is meant to encompass polyoxyethylene lauryl ether.

In the present invention, lauryl alcohol ether may be LAE-5 produced by reacting lauryl alcohol ether in a ratio of 5 moles of ethylene oxide to 1 mole of lauryl alcohol, but is not limited thereto, and is commercially available at home and abroad. It can also be purchased and used.

In the present invention, (b) a cationic polymer or polydimethylsiloxane that does not contain an ester moiety may be included in the fabric softener composition to impart smoothness and softening effect to the surface of fibers such as clothing.

In the present invention, "moiety" refers to a part or component of a molecule that can be found within a compound molecule. The moiety may refer to a characteristic structure in one molecule, and a plurality of moieties may be included in one molecule.

In the present invention, when (b) a cationic polymer is used as a component that imparts a softening effect, a material that does not contain an ester moiety is used to reduce the storage stability of the fabric softener composition due to hydrolysis of the ester moiety, It can improve the problem of degradation. The (b) cationic polymer that does not contain an ester moiety may be polyquaternium-10.

Polyquaternium-10 refers to a product obtained by addition reaction of an ammonium salt to hydroxyethyl cellulose, and has the structure of Formula 2 below.

In the formula, x and y are natural numbers, x is 1 to 10, and y is 1 to 10.

In the present invention, polyquaternium-10 can be prepared by reacting diglycidyl trimethyl ammonium chloride or -3-chloro-2-hydroxypropyl trimethyl ammonium chloride with hydroxyethyl cellulose, but by purchasing those sold at home and abroad You can also use it.

In the present invention, (b) polydimethylsiloxane (PDMS) is a silicone-based organic polymer that is non-toxic to the human body and has rheological properties suitable for use as a conditioning agent.

In the present invention, (b) polydimethylsiloxane may be amodimethicone having the structure of Formula 3 below.

In the formula, x and y are natural numbers, x is 1 to 10, and y is 1 to 10.

Amodimethicone may have a molecular weight of 1,000 to 200,000. Preferably, amodimethicone may be used having a molecular weight of 10,000 to 100,000, more preferably 30,000 to 100,000 may be used.

The fabric softener composition according to an embodiment of the present invention comprises (a) a nonionic surfactant, and (b) at least one component selected from the group consisting of a cationic polymer and polydimethylsiloxane not containing an ester moiety. It may be included in a weight ratio of :100 to 10:1. Preferably, the fabric softener composition may include (a) and (b) in a weight ratio of 1:10 to 10:1. More preferably, the fabric softener composition may include (a) and (b) in a weight ratio of 1:1.

The fabric softener composition according to an embodiment of the present invention comprises one or more components selected from the group consisting of (a) a nonionic surfactant, and (b) a cationic polymer and polydimethylsiloxane that do not contain an ester moiety, It may be included in an amount of 0.1 to 10% by weight based on 100% by weight of the fabric softener composition. Preferably, the fabric softener composition may include (a) and (b) in an amount of 1 to 10% by weight based on 100% by weight of the fabric softener composition.

The fabric softener composition according to an embodiment of the present invention may substantially not contain a cationic surfactant having low long-term storage stability, and in particular, may be characterized in that it does not substantially contain esterquats.

The friction coefficient of the fibers treated with the fabric softener composition according to an embodiment of the present invention may be 0.800 or less, preferably 0.500 to 0.800, and more preferably 0.600 to 0.760. When the coefficient of friction of the fiber exceeds 0.800, the smoothness of the fiber may not be felt.

Additionally, the fabric softener composition according to an embodiment of the present invention may further include a thickener, a pH adjuster, a fragrance, a solubilizing agent for the fragrance, deionized water, and the like.

Hereinafter, it will be described in more detail through a preferred embodiment of the present invention.

The raw materials used in the examples of the present invention were generally purchased and used from commercially available raw material manufacturers, and in particular, the alkyl glucoside was used as ELOTANT MILOOSIDE having 12 to 14 carbon atoms of LG Household & Health Care.

Example. Fabric softener composition containing nonionic surfactant and polydimethylsiloxane

A certain amount of deionized water was prepared, and 0.5 wt% of alkyl glucoside and amodimethicone were each added to 100 wt% of the total composition to prepare a fabric softener composition Example 1-1.

In the same manner, a fabric softener composition Example 1-2 was prepared by adding the same amount of polyquaternium-10 instead of amodimethicone.

To the fabric softener compositions of this example and the comparative examples below, a solubilizing agent for fragrances and fragrances of the same type and content was added, and a pH adjusting agent was further added so that the pH of the final fabric softener composition was 2 to 4.

As Comparative Example 1, a fabric softener composition was prepared that did not contain a component that imparts a softening effect to fibers such as a nonionic surfactant. Comparative Examples 2-1 and 2-2 include quaternary ammonium salts (esterquats, cas No. 91995-81-2) containing an ester moiety in 1% and 10% by weight, respectively, based on 100% by weight of the fabric softener composition. A fabric softener composition was prepared. In Comparative Example 3, a fabric softener composition containing 1% by weight of an alkyl glucoside based on 100% by weight of the fabric softener composition was prepared. As Comparative Example 4, a fabric softener composition containing 1% by weight of amodimethicone was prepared based on 100% by weight of the fabric softener composition.

Experimental Example 1. Evaluation of fiber smoothness after using fabric softener composition

After the fabric softener compositions prepared in Examples and Comparative Examples were treated on the test fabric, the friction coefficient of the test fabric was measured to evaluate the smoothness of the fibers. The test cloth was a mixture of towel yarn and cotton yarn, cut into 2 cm × 20 cm.

The fabric softener compositions according to Examples and Comparative Examples were immersed so that the test fabric was completely immersed, and stirred up and down the same number of times. In the process of immersing and stirring the test fabric, care was taken so that the test fabric was not wrinkled by external force. After allowing the test fabric to be completely immersed in the composition for 5 minutes, the test fabric was taken out and completely dried under conditions of 25° C. and 30 to 40% relative humidity.

Using a measuring device (Diastron, Model MTT175), the operating speed of the device was adjusted to 200mm/min, and the coefficient of friction of each test cloth was measured under the conditions of 25°C and 45 to 55% relative humidity. The measured coefficient of friction is shown in Table 1 below.

division Coefficient of friction Comparative Example 1 Standard improvement rate (%) Example 1-1 0.701 20.79 Example 1-2 0.751 15.14 Comparative Example 1 0.885 0.00 Comparative Example 2-1 0.847 4.29 Comparative Example 3 0.955 -7.91 Comparative Example 4 0.849 4.07

As shown in Table 1, when using the fabric softener composition prepared according to the Example, it was found that the reduction rate of the friction coefficient increased by up to about 4.8 times or more compared to Comparative Example 2-1 using the conventional quaternary ammonium salt containing an ester moiety.

In addition, even when compared with Comparative Example 3 using only alkyl glucoside and Comparative Example 4 using only amodimethicone, the coefficient of friction reduction was remarkably excellent. Compared to simply using each component, it is possible to apply amodimethicone or polyquaternium on the surface treated with alkyl glucoside by mixing nonionic surfactant and amodimethicone or polyquaternium, making it smooth. It means that the effect is maximized.

Experimental Example 2. Evaluation of fiber flexibility after using fabric softener composition

After treating the fabric softener composition prepared in Examples and Comparative Examples on the test fabric, the flexibility of the fabric was evaluated by measuring the bending value of the test fabric. The test cloth was a mixture of towel yarn and cotton yarn, cut into 2 cm × 20 cm.

The fabric softener compositions according to Examples and Comparative Examples were immersed so that the test fabric was completely immersed, and stirred up and down the same number of times. In the process of immersing and stirring the test fabric, care was taken so that the test fabric was not wrinkled by external force. After allowing the test fabric to be completely immersed in the composition for 5 minutes, the test fabric was taken out and completely dried under conditions of 25° C. and 30 to 40% relative humidity.

Bending values were measured in accordance with ASTM D1388, JIS L-1096, L-1906, L-1912, L-1913, ISO 9073-7, ASTM D-5732, GB/T 18318-2001, and measuring equipment (Daeyoung Science, CAN-1MCC) was used to adjust the operating speed of the device to 5mm/sec, and measure the bending value of each test fabric under the conditions of 25°C and 45 to 55% relative humidity. The measured bending values are shown in Table 2 below.

division Bending value Comparative Example 1 Standard improvement rate (%) Example 1-1 41.38 13.19 Example 1-2 46.30 2.87 Comparative Example 1 47.67 0.00 Comparative Example 2-1 42.38 11.10 Comparative Example 3 45.06 5.48 Comparative Example 4 41.57 12.80

As shown in Table 2, when using the fabric softener composition prepared according to Example 1-1, it was confirmed that the bending value was about 13% lower than that of Comparative Example 1 that did not contain a softening component, indicating excellent softening effect.

In addition, it appears that it has a lower bending value than that of Comparative Example 2-1 using a conventional quaternary ammonium salt containing an ester moiety, and the combination of alkyl glucoside and amodimethicone is an excellent substitute for the conventional softening effect imparting component. It was confirmed that it can be used.

Experimental Example 3. Storage stability evaluation of fabric softener composition

The fabric softener compositions prepared in Examples and Comparative Examples were stored at 40° C. for 6 months to evaluate storage stability under severe conditions. After storage, the composition was evaluated as ○: good, △: normal, and ×: unusable depending on whether or not a precipitate was formed and off-odor was generated, and is shown in Table 3 below.

division Example Comparative Example 2-2 Comparative Example 3 Comparative Example 4 evaluation ○ × ○ ○

The fabric softener composition prepared according to the Example had no difficulty in use due to its stability over time even when stored for a long time under severe conditions, whereas the fabric softener composition according to Comparative Example 2-2 formed precipitation, and even in the fibers used It was confirmed that there was a bad smell.

It goes without saying that the present invention is not limited to the above-described embodiments, and may include a combination of the above embodiments or a combination of at least one of the above embodiments and a known technology as another embodiment.

Although the present invention has been described in detail through specific examples, this is for explaining the present invention in detail, and the present invention is not limited thereto, and within the technical scope of the present invention, those of ordinary skill in the art It would be clear that the transformation or improvement is possible.

All simple modifications to changes of the present invention belong to the scope of the present invention, and the specific scope of protection of the present invention will be made clear by the appended claims.

Claims (8)

(a) nonionic surfactants; And
(b) at least one selected from the group consisting of polydimethylsiloxane and cationic polymers that do not contain an ester moiety;
Fabric softener composition comprising a. The method of claim 1,
The nonionic surfactant,
Fabric softener composition, characterized in that the alkyl glucoside or lauryl alcohol ether. The method of claim 2,
The nonionic surfactant,
Fiber softener composition, characterized in that the alkyl glucoside having 8 to 24 carbon atoms. The method of claim 1,
Cationic polymers that do not contain the ester moiety,
Fabric softener composition, characterized in that polyquaternium-10. The method of claim 1,
The polydimethylsiloxane,
Fabric softener composition, characterized in that the amodimethicone. The method of claim 1,
The nonionic surfactant, and at least one selected from the group consisting of a cationic polymer and polydimethylsiloxane that does not contain the ester moiety are included in a weight ratio of 1:100 to 10:1. Composition. The method of claim 6,
The nonionic surfactant, and at least one selected from the group consisting of a cationic polymer and polydimethylsiloxane not containing the ester moiety are included in a weight ratio of 1:1. The method of claim 1,
The nonionic surfactant, and at least one selected from the group consisting of a cationic polymer and polydimethylsiloxane not containing the ester moiety is contained in an amount of 0.1 to 10% by weight based on 100% by weight of the fabric softener composition. Fabric softener composition comprising.