JPS5952000A - cleaning composition - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to cleaning compositions. More specifically, the present invention relates to a cleaning composition with improved rinsability, particularly a kitchen cleaning composition.

Conventionally known kitchen detergents are mixtures of anionic surfactants, nonionic surfactants, amphoteric surfactants, etc., and are suitable for cooking dishes, pots, frying pans, etc. that have oil stains, especially solid fats. When cleaning utensils, various attempts have been made to improve the cleaning power, but in general, as the cleaning power increases, the rinsing performance (absorption during rinsing) becomes worse. This trend is strongly observed in detergents mainly containing alkylbenzene sulfonates.

Rinseability is a particularly important performance for kitchen detergents, and if the rinseability is poor, not only will the rinsing process take longer, but the rinsing time will be longer. ii
(so-called foam pollution) can create a sense of unease and may develop into a social problem. For these reasons, there has been a strong desire to develop a kitchen cleaner with excellent cleaning power and good rinsing properties.

The present inventors have been researching kitchen detergents that have both excellent cleaning power and rinsing properties, but unexpectedly, a detergent containing a specific surfactant and a specific polymer has been found to be superior. The present invention was completed based on the discovery that the cleaning agent maintains good detergency and exhibits extremely agitated rinsing properties.

Conventionally, incorporating polymers into cleaning compositions
It is generally widely practiced. That is, viscosity modifiers, softeners,
Encapsulating agents, oxidizing agents, protective colloids, builders,
It is added to cleaning agents as a clouding agent, a pearlizing agent, and a surface protective agent.

However, the present invention contains a specific two-component or three-component copolymer together with an alkylbenzene sulfonate to improve its rinsing properties while maintaining the detergency of the alkylbenzene sulfonate. However, there is no known example of using the polymer of the present invention for such a purpose.

That is, the present invention provides (a) alkylbenzene sulfonate 5
~50 polymerization: (b) A copolymer of vinyl acetate and ethylene, or a terpolymer having some vinyl alcohol units obtained by hydrolyzing the copolymer, or vinyl acetate and ethylene. A terpolymer obtained by copolymerizing ethylene with a comonomer selected from the group consisting of vinyl chloride, allyl chloride, propylene, acrylonitrile, and styrene as a third component, the copolymer comprising vinyl acetate, ethylene, and the above-mentioned vinyl alcohol units or the third component. The mole fraction of each component is 0.10-0.8
0, 0.05-0.90 and ○-o, s.

and has an average molecular weight of 1,000 to 1,000. O
D.D.

Co-m: Combination K with alkylbenzenesulfone tM m (
a) A cleaning composition characterized in that it contains 2 to 10 superimposed scratches on K and O.

The alkylbenzene sulfonate used in the present invention is
Those having an alkyl group having an average carbon number of 10 to 16 are preferable, and the counter ion is an alkali metal (preferably,
(sodium, potassium), alkaline earth metals (preferably magnesium), ammonium and water-soluble alkanolamines, with sodium salts and/or magnesium salts being particularly preferred. The salt of alkylbenzene sulfone is 5 to 5 in the detergent composition.
0% by weight, preferably 10 to 40% by weight.

Even when used in combination with other types of surfactants described below, it is necessary that the alkylbenzene sulfonate accounts for 40 weight percent or more of the total amount of surfactants.

The bicomponent yarn or ternary vinyl acetate-ethylene yarn copolymer (1)) used in the present invention is required to be blended in a weight ratio of 0.2 to 10 with respect to the alkylbenzene sulfonate (a). However, the detergent composition contains 0.05 to 5
It is desirable to mix by weight.

Such copolymers are generally produced by known emulsion polymerization methods. That is, it can be obtained by reacting the above-mentioned copolymerizable polymer with an emulsifier polymerization initiator and the like at room temperature to 100°C in a pressurized reactor. The copolymer emulsion thus obtained is incorporated into a detergent composition as it is or after being powdered.

According to the present invention, by blending the specific vinyl acetate-ethylene binary or ternary copolymer with the alkylbenzene sulfonate in a specific ratio, it becomes particularly important in detergents such as kitchen detergents. This can significantly improve rinsability, which is a performance characteristic.

If this rinsability is poor, that is, foam removal is poor, the copolymer of the present invention acts as an excellent foam-breaking agent when an alkylbenzene sulfonate is used as a surfactant. It is presumed to improve sexual performance.

The blending ratio of ff11 to the alkylbenzene sulfonate is also important; below 0.2 weight ratio there is no effect of improving rinsing properties, and above 10 weight ratio the foaming power of the detergent decreases. Undesirable.

The cleaning composition of the present invention can be in powder form, solid form, paste form,
Although it can take any form such as liquid form, liquid form is preferable for convenience of use. In addition to neutral builders (e.g. sodium sulfate) or water, optional ingredients of the present invention include
Various components that are normally incorporated into cleaning compositions can be added and blended as necessary. In addition, as a surfactant, the component (a) is j
h Anionic surfactants, nonionic surfactants, or (and) amphoteric surfactants other than rufurukylbenzene sulfonate may be blended as necessary in a proportion of 60 parts or less of the total amount of surfactants. . Examples of box ionic surfactants include higher alcohol sulfate ester salts having an average carbon number of 8 to 18, polyoxyalkylene (alkylene oxide having 2 or 3 carbon atoms) adducts of higher alcohols having an average carbon Ij of 18 to 18 (average addition mole), (Several 1 to 10 moles) sulfuric acid ester salts, α-olefin sulfone salts having an average carbon number of 10 to 18 (counter ions of these ionic surfactants include alkali metals, alkaline earth metals, ammonium , C 2 or ld 5 alkanolamines). Polyoxyalkylene (2 or 3 carbon atoms) is used as a nonionic surfactant.
Alkyl (or alkylphenyl) ether (average carbon number 8 to 16, average number of added moles of oxyalkylene 4 to 20 moles), polyoxyalkylene-BeQ-alkyl ether (average number of carbon atoms 10 to 16, average number of added moles of oxyalkylene 5) (mainly 15 mol), fatty acid mono- or dialkanolamide having an average carbon number of 10 to 18 (e.g. lauric acid jetanolamide), an average carbon number of 10 to 1
Examples include alkyldimethylamine oxides shown in No. 8. Examples of the amphoteric surfactant include alkyldimethylcarboxymethyl having an average carbon number of 8 to 16 or betaine propanesulfoate. The liquid detergent composition may further contain conventionally known low-temperature stabilizers, lower alcohols such as ethanol and isopropanol, glycols such as ethylene glycol, polyethylene glycol, glopylene glycol, and polypropylene glycol; Benzene sulfone m+n%, p-toluene sulfonate,
Lower alkylbenzene sulfone salts such as xylene sulfone salts, acetamides, aromatic carboxylic acid salts such as benzoates and salicylates, etc. can be used in combination. Other known substances that can be incorporated into cleaning compositions can be used in combination depending on the purpose. Such substances include citric acid, malic acid, gluconic acid, or their salts, which are active builders and inorganic builders for improving cleaning power, as well as anti-aging agents, enzymes, protein derivatives,
Additives include opacifying agents, coloring agents, preservatives, fragrances, and the like.

The present invention will be described in detail below with reference to Examples, but the present invention is not limited by these Examples.

The same section indicates weight %.

The test method in the same example is as follows.

B) Cleaning power - 0.1 part of Sudan H (red pigment) was added as a finger wash to beef tallow, and 5V of this was poured into a magnetic dish (diameter 25cm), which was soaked with 10t of detergent and 20t of water. It is indicated by the number of plates that have been scrubbed with a sponge until the tallow can no longer be removed cleanly from the plates.

(1) Foaming power The foaming power is measured when 0.196 of commercially available butter is added as a stain component to a detergent solution with a detergent concentration of 0.5. The measurement method was to put 40 cc of the above detergent solution containing butter into a glass cylinder with a diameter of 5 cm, and then rotate and stir for 10 minutes.
Measure the foam height immediately after stopping.

C) Rinseability Concentration 0.25 in a vat with a diameter of 303 and a height of 12
Person in charge sample solution 3! Rotate and stir for 10 minutes, then open the cock attached to the bottom of the vat to drain only the liquid.

Next, tap water 3! and stirred for 10 minutes in the same manner to drain the liquid. This operation is repeated by changing the tap water until no bubbles are observed in the vat, and evaluation is made based on the number of times the tap water is replaced.

Example 1 A cleaning agent for 4 buildings was prepared according to the composition shown below, and its rinsing properties were evaluated one by one.

From Table 1, when 012'25-CΣS O5Na' (dodecylbenzenesulfonate) was used as a surfactant, the rinsing performance was improved by the combination of BVA, EVAS, EVAO, and KVAA as polymers, but P
It can be seen that no improvement was observed with VAc, and in the case of other surfactants, the rinsability was hardly changed by the addition of polymer.

Example 2 The cleaning power, foaming power, and rinsability of the composition shown below were evaluated. The results are shown in Table 2.

Table 2 Examples The rinsability of the compositions shown below was evaluated. The results are shown in Table 3.

Claims (1)

[Claims] 1(a) Furkylbenzenesulfonate 5 to 50% by weight
(1)) A copolymer of vinyl acetate and ethylene, or an E-based copolymer having some vinyl alcohol units obtained by hydrolyzing the copolymer, or a third component of vinyl acetate and ethylene. A ternary co-electrolytic polymer copolymerized with a comonomer selected from the group consisting of vinyl chloride, allyl chloride, propylene, acrylonitrile, and styrene, wherein the molar content of vinyl acetate, ethylene, and the vinyl alcohol unit or third component is rate is 0.1Ω~0,80.0.05 respectively
~0.90 and 0-0.50 with an average molecular weight of 1
, 000 to 1,000,000 copolymer to an alkylbenzene sulfonate (,) in an amount of 0.2 to 10 times. 2. The cleaning composition according to claim 1, wherein the alkylbenzene sulfonate is a sodium salt or/and a magne-7cum salt.