JPH0860531A - Composition for removing stain - Google Patents

Abstract

PURPOSE: To obtain the subject composition capable of readily removing oily stains and foulings and hardly removable lipsticks, etc., by blending a specific alcohol with a specified ester as active ingredients at a specific ratio. CONSTITUTION: This composition for removing stains is obtained by blending (A) about 20-80wt.% <=6C alcohol, preferably isopropyl alcohol with (B) about 40-80wt.% ester of a <=4C lower alcohol with an organic acid, preferably butyl acetate as active ingredients at a ratio so as to provide a blending ratio (A):(B) of both the components within the range of about (3:2) to (1:4) and further effectively including about 1-40wt.% surfactant, e.g. an anionic, a nonionic, a cationic or an amphoteric surfactant therein. The resultant composition is suitable for removing oily stains and foulings sticking to clothes, etc.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stain-removing composition suitable for removing oily spot stains mainly attached to clothes.

[0002]

2. Description of the Related Art Conventionally, there has been a stain removing composition containing benzine as an active ingredient for mainly removing oily stains adhering to clothes and the like. This product is dripped onto the stain spots on clothes to elute oily stains such as fats and oils from the fibers, and then wiped off with another cloth or tissue paper.

By the way, recently, lipsticks that are hard to fall off from the lips have been increasing. This type of lipstick is hard to adhere to the mouth-attached parts such as coffee cups,
The frequency of applying lipstick can be reduced.

However, the stains formed by such lipsticks adhering to clothes or the like have a problem that it is difficult to remove them sufficiently with the conventional stain removal composition because of the function of being hard to remove.

[0005]

SUMMARY OF THE INVENTION Therefore, the present invention
It is an object of the present invention to provide a stain-removing composition that can remove even stains that are difficult to remove such as lipsticks that are hard to remove along with ordinary oily stains more than before.

[0006]

Means for Solving the Problems As a result of intensive studies to solve the above problems, the present inventors have incorporated an alcohol having 6 or less carbon atoms and an ester of a lower alcohol and an organic acid as active ingredients. It was found that, by doing so, it is possible to preferably remove even stains that are difficult to remove, such as lipsticks of the type that are difficult to remove along with ordinary oily stain stains, and completed the present invention.

That is, the stain removal composition of the present invention contains about 20 to 60% by weight of an alcohol having 6 or less carbon atoms.
And an ester of a lower alcohol having a carbon number of 4 or less and an organic acid in an amount of about 40 to 80% by weight as an active ingredient.

About 20 parts of the alcohol having 6 or less carbon atoms is added.
If it is less than wt%, it is difficult to remove highly polar stains.
If it exceeds 5% by weight, dirt with low polarity is hard to remove. Further, when the carbon number of alcohol exceeds 6, there is a possibility that the human body may be adversely affected by the suction of the vaporized component at the time of its use, and it becomes solid at room temperature, which makes it difficult to handle as a stain remover and is costly. The drawback is that it goes up. As the alcohol having 6 or less carbon atoms, for example, isopropyl alcohol, propyl alcohol, butyl alcohol, isobutyl alcohol, tertiary butyl alcohol, etc. can be selected and implemented. When isopropyl alcohol is selected, it can be preferably used in the above three points. Note that this isopropyl alcohol has a property of high polarity.

If the ester of a lower alcohol having 4 or less carbon atoms and an organic acid is less than about 40% by weight, stains with low polarity are hard to remove, and if it exceeds about 80% by weight, stains with high polarity are hard to remove. As the ester of a lower alcohol having a carbon number of 4 or less and an organic acid, for example, butyl acetate, ethyl acetate or the like can be selected and implemented. If butyl acetate is selected from among these, it is very easy to remove the stain of the lipstick of the type that is difficult to remove, and it is also difficult to damage the fabric and to prevent discoloration. Butyl acetate has the property of being less polar than isopropyl alcohol but more polar than benzine.

The blending ratio of the alcohol having 6 or less carbon atoms and the ester of the lower alcohol having 4 or less carbon atoms and the organic acid is preferably from about 3: 2 to about 1: 4 from the viewpoint of detergency. This is because stains with low polarity are difficult to remove in the range of about 5: 0 to 3: 2, and stains with high polarity are difficult to remove in the range of about 1: 4 to 0: 5.

Further, a surfactant is used in an amount of about 1 to 40% by weight,
It can also be implemented as preferably containing about 1 to 10% by weight. It is possible to enhance the penetrating power of the stain removal composition into fibers such as cloth, and to easily remove the stain component from the fibers by wrapping it in and prevent reattachment to the fibers. As a result, the performance of removing stain stains on clothes and the like can be further improved. Since the surfactant has low volatility, it may remain as a stain on the fabric if it is mixed in too much. About 10 surfactant
When the content is less than 5% by weight, there is an advantage that the stain can be removed with a cloth soaked in water without leaving ring stains.

As the surface active agent, an anionic surface active agent, a cationic surface active agent, a nonionic surface active agent and an amphoteric surface active agent may be used alone or in combination of two or more (provided that the anionic surface active agent is used. And the combination of cationic surfactants).

As the anionic surfactant, for example, higher alcohol sulfate ester salt, polyoxyethylene alkyl ether sulfate ester salt, polyoxyethylene alkylphenyl ether sulfate ester salt, polyhydric alcohol fatty acid ester salt, fatty acid alkanolamide sulfate ester salt, etc. Sulfonates, alkylallyl sulfonates, alkane sulfonates, α-olefin sulfonates, fatty acid amide sulfonates and other sulfonates,
Phosphates such as higher alcohol phosphoric acid ester salts and polyoxyethylene alkyl ether phosphoric acid ester salts, and fatty acid salts can be selected.

As the nonionic surfactant, for example, fatty acid ester of polyhydric alcohol, polyoxyethylene alkyl (phenyl) ether, fatty acid alkylolamide,
Amine oxide or the like can be selected.

As the cationic surfactant, for example, fatty acid amine salt, quaternary ammonium salt, polyoxyethylene alkylamine and the like can be selected.

As the amphoteric surfactant, for example, imidazoline type, betaine type and aminocarboxylic acid type can be selected.

[0017]

EFFECTS OF THE INVENTION The present invention has the above-mentioned structure, and can remove stains that are difficult to remove, such as lipstick of the type that is difficult to remove along with ordinary oily stains, more cleanly than before. A stain removal composition can be provided.

[0018]

EXAMPLES The constitution of the present invention will be described below with reference to examples.

In this example, the following was prepared as a stain removal composition. (Example) As Example 1, a mixture of isopropyl alcohol and butyl acetate at a mixing ratio of about 4: 6, and as Example 2 a mixture of isopropyl alcohol and butyl acetate at a mixing ratio of about 4: 6. On the other hand, a mixture of a small amount of polyoxyethylene alkylphenyl ether and triethanolamine was prepared.

The details of the formulation of Example 2 are as follows: 38.6% by weight of isopropyl alcohol and 5% of butyl acetate.
7.9% by weight, polyoxyethylene nonylphenyl ether (manufactured by Sanyo Chemical Industry Co., Ltd., trade name Nonipol 160) 3.0% by weight, triethanolamine (Mitsui Toatsu Chemical Co., Ltd. trade name TEA) Is 0.5% by weight.

Polyoxyethylene nonyl phenyl ether functions as a surfactant, and triethanolamine functions as a cleaning aid (alkaline agent) when hydrogen peroxide is used in combination. (Comparative Example) On the other hand, the following was prepared as a comparative example.

As Comparative Example 1, isopropyl alcohol (alone), as Comparative Example 2 isobutyl alcohol (alone), as Comparative Example 3 butyl acetate (alone), as Comparative Example 4, a petroleum solvent (ligroin), and as Comparative Example. A chlorine-based solvent (1,1,1-trichloroethane) was added as No. 5, and a comparative example 6 was prepared by mixing isopropyl alcohol and ligroin in a ratio of about 4: 6.

The petroleum solvent (ligroin) of Comparative Example 4 has a property of low polarity, and the chlorine solvent (1,1,1-trichloroethane) of Comparative Example 5 is generally dry-cleaned. It has a higher polarity than petroleum solvent (ligroin). (Evaluation test) Next, the following evaluation tests on the stain removal performance were performed using the stain removal compositions of the above Examples and Comparative Examples.

First, the sources of three types of stain stains described below are attached to cotton cloth. After the lapse of 3 hours, stains were soaked into the cotton cloth to form spots, and then the stain removal treatment was performed using each stain removal composition prepared as described above.

The stain removal method is carried out by applying a patch cloth to the back side of the stain portion of the cotton cloth and tapping from the front side with the mouth of the container containing the stain removal composition to remove stain stains from the fibers into the stain removal composition. After the elution, the portion impregnated with the stain-removing composition is tapped with another cloth soaked in water to wipe it off. As the source of three kinds of dirt,
The ones from the following were used.

A lipstick that is hard to remove (Kanebo Co., Ltd., trade name Testimo TPK-1). General lipstick (Shisendo Co., Ltd., product name Leschente PK
484).

Waste oil (0.25% by weight of pigment (OIL
Compounded with RED 5B)).

Then, the whiteness of the cotton cloth before the stain removal, the whiteness of the cotton cloth after the stain removal test, and the whiteness of the cotton cloth before the stain removal test were measured, and the stain removal rate (%) described below was used by using these measured values. The stain removal rate (%) according to the formula
Was calculated. [Stain removal rate (%) = (whiteness after test−whiteness before test) / (whiteness of cotton cloth−whiteness before test)] Each whiteness is a colorimetric color difference meter (Nippon Denshoku Manufactured by Kogyo
It was measured using a trade name SZ-Σ80OF-3 type).
Table 1 shows the test results.

As shown in Table 1, the test results of the stain removal compositions of Examples 1 and 2 were compared with those of the respective Comparative Examples.
It is found that the stain removal rate (%) of the lipstick that is hard to remove is particularly excellent. Further, from the test results of Example 2, it can be seen that the one obtained by further mixing the polyoxyethylene alkylphenyl ether and triethanolamine has a more excellent removal effect.

The stain removal composition of this example was prepared as follows:
The reason why it is particularly excellent at removing oily stains such as lipstick that is hard to remove is that the synergistic effect of isopropyl alcohol, which has a certain degree of polarity, and butyl acetate, which has a lesser degree of polarity, but is more polar than ligroin, It is presumed to be caused by the action. As shown in the test results of Comparative Examples 1 and 3, isopropyl alcohol and butyl acetate cannot be expected to have the effect of removing stain stains by themselves.

Next, using the stain-removing compositions of Example 2 and Comparative Example 4, an evaluation test was conducted on the stain-removing performance against ordinary stain stains in the same manner as above.

Target stain stains are foundation, butter, mayonnaise, edible oil, chili oil, and sesame oil. Table 2 shows the test results of the stain stain removal rate (%).

As shown in Table 2, it can be seen that the stain-removing composition of Example 2 is also very excellent in stain-removing performance for ordinary oily spot stains.

That is, the stain-removing composition of this example has the same stain-removing performance against conventional oily stains as that of the conventional one, but it is also difficult to remove stains such as lipstick which is hard to remove. However, it has an advantage that it can be removed more cleanly than ever before.

[0035]

[Table 1]

[0036]

[Table 2]

Claims (5)

[Claims] 1. An alcohol containing about 6 to 6 carbon atoms is used.
A stain-removing composition comprising 60% by weight and about 40 to 80% by weight of an ester of a lower alcohol having 4 or less carbon atoms and an organic acid as an active ingredient. 2. The stain removal composition according to claim 1, which contains a surfactant in an amount of about 1 to 40% by weight. 3. A compounding ratio of an alcohol having a carbon number of 6 or less and an ester of a lower alcohol having a carbon number of 4 or less and an organic acid is in the range of about 3: 2 to about 1: 4.
Or the composition for removing stains according to 2. 4. The stain removal composition according to claim 1, wherein the alcohol having 6 or less carbon atoms is isopropyl alcohol. 5. The stain removal composition according to claim 1, wherein the ester of the lower alcohol and the organic acid is butyl acetate.