JPS5845996B2 - cleaning composition - Google Patents

Description

Detailed Description of the Invention The present invention uses α-sulfo fatty acid ester salt (α-8FE) and olefin sulfonate (O8) as active ingredients,
The present invention relates to a cleaning composition having excellent foaming power and other properties.

Linear alkylbenzene sulfone (LAS) is still widely used as one of the main active ingredients in cleaning agents, but due to recent problems such as water pollution, it has been found that it has detergency even in hard water and is biodegradable. There is a trend toward using active agents with particularly good properties.

Such activators include alkyl sulfates (AS),
Examples include alkyl ether sulfate (AES), O8 or α-8FE, with αSFE being a particularly preferred activator.

However, although phosphorus-containing or phosphorus-free detergents containing αSFE as an active ingredient have satisfactory cleaning power compared to those containing O8 or LAS as an active ingredient, they are particularly inferior in foaming power, and
When detergents containing 8 as an active ingredient are used especially in highly hard water, the alkaline earth metal salts of the active agent may be deposited on the fabric being washed (especially cotton fabrics such as underwear and sheets, and polyester fabrics such as fashionable clothing). There are drawbacks such as yellowing of the cloth to be washed, and if the cloth to be washed is flame-retardant (for example, curtain cloth), its flame-retardant effect is degraded to the same level as untreated cloth.

In addition, detergents containing LAS as an active ingredient have drawbacks such as slightly inferior biodegradability and poor texture on the cloth being washed.

The present inventors have demonstrated that by adding O8 and polyethylene glycol (PEG) to α-8FE, their mutual effects are exhibited, and the product has excellent detergency, foaming power (foam height), and biodegradability. It has been found that it is possible to obtain a cleaning composition that prevents yellowing of the cloth being washed, does not impede the flame retardant effect, and provides a good texture.

The present invention was achieved based on such knowledge, (However, R1: C6-C2o alkyl group, R2: C1-C2o alkyl group,
C3 alkyl group, M: alkali metal and/or alkaline earth metal) α-sulfo fatty acid ester salt (1))
C10-C20 alkali metal salt and/or alkaline earth metal salt of olefin sulfonic acid, and (c) polyethylene glycol with average molecular weight 1000-10000 (a):(b)-9o: 10-50: 50
(weight ratio) and (a) + (b): (c) -100
It is an object of the present invention to provide a cleaning composition characterized in that it contains 1 to 20 (weight ratio).

α-8FE used as the active ingredient of the cleaning agent of the present invention is represented by the above general formula, and is obtained by sulfonating the fatty acid ester with a conventional continuous thin film sulfonation device or seed type sulfonation device and then neutralizing it. Alternatively, it can be obtained by sulfonating a fatty acid in the above-mentioned apparatus, further esterifying it with a C1-C3 alcohol, and then neutralizing it.

In this case, the raw fatty acids or fatty acid esters include C8 to C22 fatty acids or their esters (carbon chain length C1 to C3) derived from natural fats and oils, such as coconut oil, palm kernel oil, palm oil, or beef tallow, alcohols, and olefins. Synthetic C3-C22 fatty acids or esters thereof (carbon chain length C1-C3) derived from etc. are used, and as salts, alkali metal salts, alkaline earth metal salts or mixtures thereof are used.

Note that this α-8FE contains 20% or less, preferably 10% or less of a compound represented by the general formula (R1: C6 to C2o alkyl group, M: alkali metal and/or alkaline earth metal). It's okay.

Similarly, O8, which is used as an active ingredient, is used to sulfonate olefins in a conventional continuous thin-film sulfonation device, then neutralize them.
Obtained by hydrolysis.

In this case, the raw material olefin is a cio-c2o α-olefin obtained by a wax cracking method, a Ziegler polymerization method, or an improved method thereof: C0°~
C20 inner olefins: Cxo=C2o vinylidene olefins; and mixtures thereof are used.

As the salt, alkali metal salts, alkaline earth metal salts and mixtures thereof are used.

In addition to the above active ingredients, PEG is used in the present invention for the purpose of preventing yellowing and maintaining flame retardancy.

This PEG has a molecular weight of 1,000 to 10,000.

Here, the blending ratio of α-8FE and O8 is 90:
10 to 50: 50, and (α-8FE+
The blending ratio of O8) and PEG is 100:1 to 100:1 by weight.
You must throw within the range of 20.

Only within these ranges can the additive effects of each component be exhibited, and in particular excellent foam height, prevention of yellowing, and maintenance of flame retardancy can be achieved.

In other words, these effects cannot be obtained outside the above range.

The composition of the present invention may further include known detergent additives such as sodium silicate, sodium carbonate, sodium tripolyphosphate,
Inorganic builders such as sodium pyrophosphate, sodium orthophosphate, and aluminosilicate; polycarboxylate salts such as maleic anhydride and olefin copolymers, sodium citrate,
Sodium oxydisuccinate, Sodium nitrilotriacetate (N
Organic builders such as TA); organic chelating agents such as EDTA; anti-caking agents; fluorescent brighteners; fragrances, etc. can be used.

Examples are shown below.

Example 1 According to the following formulation, hydrogenated beef tallow fatty acid methyl and C16~
Sodium α-sulfofatty acid methyl (α-8FMe-Na), α-
Sodium olefin sulfonate (AO8) and PEG
(molecular weight 6000) was prepared as a main component.

Next, the foam height of this composition was measured and the results are shown in Table 1.

Prescription α-8FMe 25% 08 PEG □ 2% Sodium silicate 15% Sodium carbonate
10% sodium sulfate and water
As can be seen from the results of balance table-1, α-8FM
e: When the blending ratio of AO8 is 90:10 to 50:50, α
-8FMe and AO8 exhibited superior foam height.

Example 2 Using the same active agent as in Example 1, PEG (molecular weight 6000
Table 2 shows the foam height when the blending amount of () was changed as shown in the following formulation.

Formulation *As can be seen from the results in Table 2, excellent large foam height was exhibited when the amount of PEG was 1 to 20% based on the active agent.

Examples 3 to 5 A cleaning composition having the same composition as /16.4 of Example 1 was prepared, except that the types of α-8FMe, O8 and PEG were changed,
As a result of measuring the foam height, as shown in Table 3, the foam height was excellent.

Example 6 A cloth to be washed was washed using the cleaning composition of Example 2 with a ratio of /% 10, and the yellowing degree and flame retardance were tested. The results are shown in Table 4.

As can be seen from the results in Table 4, when the blending amount of PEG is in the range of 1 to 20% based on the active agent, yellowing of the washed fabric can be prevented and flame retardancy can also be maintained.

Example 7 A cleaning composition was prepared using the same active agent and PEG as in Example 1 except for the following formulation, and the foam height, yellowing degree of the cloth to be washed, and flame retardancy were measured. As a result, it was found to be excellent. It was able to exhibit a high foam level, prevent yellowing of the washed fabric, and maintain flame retardancy.

prescription α-8FMe 15% O8 PEG Sodium tripolyphosphate Sodium silicate sodium carbonate sodium sulfate and water Test results Foam height (m11L) yellowing 10% 2% 15% 10% 5% balance 7 Flame retardance Carbonization length (C1rL) Afterflame time (seconds) Remaining time (seconds) 1.5 The test method is as follows.

Foam height test: The shirt with the organic soiling substance was placed in an electric washing machine with a hot water volume of 3.
0J, bath ratio 1:30, temperature 25°C 1 hour 10 minutes, 3°
Wash under the conditions of using DH water and measure the height of the foam produced.

Yellowing test After repeating the washing-rinsing-air-drying cycle 20 times, the reflectance Ry of the washed fabric was measured using Elrepho manufactured by Carl Zeiss.
(using a filter for green color) and Rz (using a filter for blue color) are measured, and the b value is determined from the following formula.

On the other hand, the reflectances Ry and Rz of the cloth washed with water are measured to determine the b value, and the degree of yellowing is expressed as the difference (Δb value).

The cleaning conditions are a hot water volume of 900ml. Bath ratio 1:30. temperature 2
Water was used at 5°C, for 10 minutes, and at 15°DH.

Flame retardant test Flame retardant fabric (62% polyester cloth, rayon 3
8%) in a washing-rinsing-air-drying cycle five times, and then tested using a vertical flammability tester made by Suga Test Instruments.
Tested according to SL-1091.

Claims (1)

[Claims] 1(a) General formula (wherein R1: C6 to C2o alkyl group, R2: C1 to
C3 alkyl group, M: α-sulfo fatty acid ester salt represented by alkali metal and/or alkaline earth metal), (b) C10-
C20 olefin sulfonic acid alkali metal salt and/or
or an alkaline earth metal salt, and (c) an average molecular weight of 1
000-10000 polyethylene glycol (a):(b)-90:10-50:50 (
weight ratio) and (a) + (b): (c) = 100:
A cleaning composition characterized by containing 1 to 20 (weight ratio).