JPH02294397A - Cleaning agent composition - Google Patents

Abstract

PURPOSE:To obtain a cleaning agent composition for textile containing a surfactant, terpolymer of alkylene, CO and maleic anhydride and zeolite, having excellent effect for re-preventing stain and good biodegradability and causing no enriched nutrition. CONSTITUTION:The aimed composition containing (A) 5-60wt.% (preferably 10-60wt.%) surfactant, preferably nonionic or anionic surfactant, (B) 0.05-50wt.% (preferably 1-50wt.%) builder salt [preferably alkali (earth) metal salt, ammonium salt or amine salt] of terpolymer copolymer of alkylene, CO and maleic anhydride and (C) zeolite. Furthermore, weight ratio of the component B to component C is 1:50-10:1 (preferably 1:10-1:1).

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a detergent composition containing a surfactant, a novel terpolymer salt, and a zeolite.

More specifically, the present invention relates to a laundry detergent composition that has an excellent anti-recontamination effect.

[Conventional technology]

Regarding cleaning agents, various studies have been conducted to improve the cleaning power of the surfactant in a composition containing a surfactant, a builder, and other additives through interaction with a builder such as STPP. Since the increase in the content of phosphorus compounds in water has caused environmental problems due to eutrophication of rivers, lakes, and marshes, the use of substitutes has been rapidly promoted in recent years.

For example, zeolite, an inorganic compound that has no problems in terms of eutrophication or safety, has come to be used, but zeolite does not have the ability to disperse particle dirt, and detergent compositions containing zeolite alone as a builder component are It has the disadvantage that its cleaning power is inferior to those containing STPP. For this reason, in order to enhance the dispersibility of the compounded composition, studies have been made to use polymer electrolytes with strong dispersibility in combination with zeolite. Detergent compositions consisting of glycols, zeolites and alkali metal salts of carbonate have been proposed.

[Problem to be solved by the invention]

However, according to studies conducted by the present inventors, the above-mentioned polymer electrolytes have poor biodegradability and do not have sufficient detergency.

The present invention provides ST
An object of the present invention is to provide a detergent composition containing an organic builder and zeolite, which exhibits a detergency equivalent to or higher than that of PP, has a good recontamination prevention ability, is biodegradable, and does not cause eutrophication. It is.

[Means to solve the problem]

As one of the solutions to the many problems described above, the present invention provides S
The object of the present invention is to provide a detergent composition that has an ability to prevent re-staining that is equivalent to or better than that using TPP.

The surfactants used in the present invention include linear or branched alkylbenzene sulfonates, alkyl or alkenyl ether gL salts, alkyl or alkenyl sulfates, α-sulfo fatty acid salts or ester salts, alkanes or alkenesulfonates, saturated or unsaturated fatty acid salts, alkyl or alganyl ester carboxylates, amino acid type surfactants, anionic surfactants such as alkyl or alkenyl phosphate esters or salts thereof, polyalkylene glycol alkyl ethers, polyalkylene glycol alkyl phenyl ethers, poly Nonionic surfactants such as alkylene glycol fatty acid ester, sorbitan fatty acid ester, alkyl polyglycoside, fatty acid dialkanolamide, cationic surfactants such as alkyltrimethylammonium chloride, dialkyldimethylammonium chloride, alkyldimethylamine oxide, alkyldimethylsulfopropyl Examples include amphoteric surfactants such as betaine. Among these, it is preferable to use at least one kind selected from nonionic and anionic surfactants, and for clothing, a combination of nonionic and anionic surfactants is particularly preferable.

The amount of surfactant added is 5 to 60% by weight of the detergent composition.
, preferably 60% from IO.

The terpolymer of alkylene, carbon monoxide, and maleic anhydride used as the builder salt in the present invention is a polymer electrolyte whose main chain consists of the following three structural units.

(In the formula, Rl, RZ, and R3 represent a hydrogen atom, a methyl group, or an ethyl group, and Ml and M2 are cations derived from alkaline earth metals, ammonium, or amines.) Builder salt used in the present invention are ethylene, propylene, l-butene, 2-butene, isobutene, pentene,
It can be obtained by saponifying a terpolymer obtained by radical copolymerization of carbon monoxide and maleic anhydride in the presence of an olefin such as hexene using a conventional method.

Among these, copolymers using ethylene as the olefin are most preferred from the viewpoint of yield and reactivity.

The molar ratio of the constituent units of the copolymer is such that the alkylene component is 5
~80%, preferably 10-70%, carbon oxide component is 0
．． The maleic acid component is in the range of 1 to 4-0%, preferably 0.5 to 25%, and the maleic acid component is in the range of 10 to 90%, preferably 20 to 80%, and the total of the three components is 100%. . The average molecular weight of the copolymer is preferably 500 to 50,000 as a terpolymer before saponification. ranges from 500 to 30,000. Since the builder salt of the present invention has a CO group in the polymer main chain, it is easily cleaved and decomposed by light or microorganisms, and does not cause the problem of eutrophication of rivers and lakes.

The amount of builder salt added is 0.05% by weight of the detergent composition.
-50%, preferably 1-50%.

The weight ratio of builder salt to zeolite is 1:50-1
The ratio is in the range of 0:1, preferably in the range of 210 to 1:1.

In addition to the above-mentioned surfactant and builder salt of alkylene/Co/maleic anhydride terpolymer, the detergent composition of the present invention contains a substance that imparts alkalinity in order to effectively exhibit the performance of the builder salt. be done. The alkalizing agent may be one that makes the pH of the detergent aqueous solution alkaline, such as inorganic builders such as caustic soda, soda carbonate, sodium silicate, and sodium borate, and condensation agents such as triethanolamine and STPP. The alkaline phosphate salt etc. is added in an amount of 1 to 50% by weight of the detergent composition, preferably 5 to 50% by weight.
40% or the total amount of the terpolymer builder salt and alkalizing agent is 5% or more.

Further, the detergent composition of the present invention can be mixed in various ways depending on the type of the object to be cleaned or the type of contamination, and various components can be further added as necessary.

Specifically, we use Glauber's salt as an inorganic acid salt, talc as a polishing agent, finely powdered non-silica, etc., hydrogen peroxide, sodium percarbonate, etc. as an oxidizing bleach, sodium bisulfite as a reducing bleach, and a recontamination prevention agent. Carboxymethyl cellulose, polyethylene glycol, others, enzymes, fluorescent dyes,
Examples of ingredients include fragrances, coloring agents, preservatives, and chelating agents.

〔Example〕

Next, the present invention will be explained in more detail with reference to Examples.
The present invention is not limited to these examples.

Example 1 A terpolymer having a viscosity average molecular weight of 5300 and having a ratio of 39:5.5:55.5 (mole ratio) obtained by radical copolymerization of ethylene, carbon monoxide, and maleic anhydride was mixed with water. Using the salt obtained by neutralizing with an aqueous sodium oxide solution, a detergent composition with the following formulation was prepared, and the anti-recontamination ability was evaluated at a washing water temperature of 60°C and the cleaning power at 25°C using an artificially soiled cloth. did.

Detergent composition LAS 2 7 parts by weight Na2co, 1 3 . 5NazSiO:
+ 1 3.5NazSOn 2
0 Zeolite 20 Ternary copolymer salt 5 Comparative example 1 The same procedure as in Example 1 was carried out except that the ternary copolymer salt was not used in Example 1 and a composition containing 25 parts by weight of zeolite was used. The recontamination prevention ability and cleaning power were measured.

Comparative Example 2 In Example 1, except that sodium polyacrylate having an average molecular weight of 2500 was used instead of the terpolymer salt,
The recontamination prevention ability and cleaning power were measured in the same manner as in Example 1.

Comparative Example 3 The re-stain prevention ability and detergency were measured in the same manner as in Example 1, except that no zeolite was used and a composition containing 25 parts by weight of the terpolymer salt was used.

Comparative Example 4 The re-stain prevention ability and detergency were measured in the same manner as in Example 1, except that a composition using STPP instead of the terpolymer salt and zeolite was used.

The recontamination prevention ability and cleaning power are summarized in Table 1.

Table 1 In addition, the recontamination prevention ability measurement was carried out by the following method.

(1) Artificial soiled cloth Disperse artificial soil with the following composition in water, create contaminated cloth using a water solvent wet method, cut these into 5 cm x 5 pieces, and test those with a reflectance of 43 ± 2%. Used as cloth.

In addition, a piece of cotton knitted cloth with 60 mg of organic dirt adhered thereto was used as a seham cloth for adjusting the bath ratio in the recontamination prevention ability measurement.

(2) Recontamination Prevention Ability Measurement Using Terg-0-Tometer, the same white cloth was washed 5 times under the following washing conditions, each time with a newly prepared dirty cloth. The degree of graying was calculated from Shimo 2 and used as the re-contamination prevention ability.

(The lower the degree of graying, the higher the recontamination prevention ability) Degree of graying - Re Rs R0: Surface reflectance of white cloth before washing R,: Surface reflectance of white cloth after washing 5 times Number of revolutions 12 Orpm White cloth 10 20 pieces of dirty cloth Washing liquid volume 900m6 Water hardness 20DH Detergent concentration 1wt% Bath ratio 15:1 Washing time 30 minutes Rinse time 10 minutes Dry Air dry then iron dry (3) Detergent power measurement Using Terg-0-Ton+eter, The washing was carried out under the following washing conditions. The cleaning power was determined by measuring the surface reflectance of the cloth after washing and using the following formula.

However, K/S= (1-R)"/2R( Kube
lka-Munk formula) Condition R: Surface reflectance of each cloth Rotational speed Dirty cloth Volume of cleaning liquid Water hardness Detergent concentration Bath ratio Cleaning time Rinse time Drying 120rprn 10 sheets 900m! ! 3DH O. 1 wt% 3 0: 1 Air dry for 10 minutes x 2 times for 3 minutes, then iron dry.

Claims (3)

[Claims] (1) A detergent composition containing a surfactant, a terpolymer salt of alkylene, carbon monoxide and maleic anhydride, and zeolite. (2) The surfactant is selected from nonionic and anionic surfactants, and the builder salt of the terpolymer is an alkali metal salt, an alkaline earth metal salt,
The composition according to claim 1, which is at least one of an ammonium salt and an amine salt. (3) Weight ratio of terpolymer salt and zeolite is 1:50
10. The composition of claim 1 in the range of .about.10:1.