JPS5839480B2 - Detergent composition for dry cleaning - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a detergent composition for dry cleaning that has excellent water-holding ability, excellent detergency against water-soluble dirt, and excellent recontamination prevention ability.

The role of detergents in dry cleaning is to improve water solubilization (water-holding ability), to make it possible to remove water-soluble stains from clothing, and to re-deposit the removed stains. In addition, the water-holding capacity is related to the ability to remove water-soluble dirt, and at the same time, it is valued as the ability to solubilize water that is brought about by the absorption of moisture by the items being washed. If there is water that is not solubilized, it will cause shrinkage and loss of color during repeated washing, so it must have the necessary water-holding capacity.

Surfactants used as detergent ingredients for this purpose have long been anionic surfactants such as alkylbenzene sulfonates, dialkyl sulfosuccinates, petroleum sulfonates, polyoxyethylene nonylphenyl ether, fatty acid alkyl sulfonates, etc. Nonionic surfactants such as rollamide and polyoxyethylene alkyl ether are known, but anionic surfactants have a low water-holding capacity, and nonionic surfactants have a low re-fouling prevention ability. Therefore, these surfactants are currently used in various combinations.

However, a satisfactory product has not yet been obtained, and the disadvantage that the detergency against water-soluble dirt in particular is not good has not been solved.

As a result of intensive research aimed at developing a new dry cleaning detergent that overcomes the above-mentioned drawbacks, the inventors of the present invention unexpectedly identified a certain type of anionic surfactant or amphoteric surfactant. The present invention was completed based on the discovery that the above object can be achieved by a surfactant composition blended in the appropriate proportions.

That is, according to the present invention, when surfactants represented by the following general formulas A, B, and C are contained as active ingredients, and the total of surfactants A, B, and C is 100 parts by weight, the surface Active agent A: 5 to 50 parts by weight, surfactant B: 20 to 50 parts by weight
There is provided a detergent composition for dry cleaning, characterized in that the ratio is 60 parts by weight of surfactant C and 3 to 60 parts by weight of surfactant C.

A: Ether sulfate salt (wherein R1 is an alkyl group or alkenyl group having 8 to 20 carbon atoms, R2 is a hydrogen atom or a methyl group, n is 1 to 10
, M1 is an alkali metal, an alkaline earth metal, or an alkanolamine). (alkaline earth metal or alkanolamine) C: ether phosphate salt (wherein R5 is an alkyl group or alkenyl group having 8 to 18 carbon atoms, R6 is a hydrogen atom or a methyl group, and R2 is 1 to 50
is an integer of
, R6 and R2 have the same meanings as above) In the dry cleaning detergent of the present invention, the component (4
), that is, the polyoxyalkylene alkyl ether sulfate salt or polyoxyalkylene alkyl aryl ether sulfate salt represented by the general formula A belongs to anionic surfactants, and has relatively excellent oil-soluble detergency and re-staining prevention power. However, it has the disadvantage of extremely low water-holding capacity.

In component (4) represented by this general formula A, if the number of carbon atoms in R1 is less than 8, the surfactant ability decreases, resulting in poor detergency against oil-soluble dirt, and if it exceeds 20, the water solubility decreases. Therefore, the cleaning power against water-soluble dirt deteriorates.

Further, when nl is 0, the surface tension decreases, resulting in poor detergency, and when nl exceeds 10, hydrophilicity and lipophilicity become strong, resulting in a decrease in recontamination prevention ability.

Among these polyoxyalkylene alkyl ether sulfate salts or polyoxyalkylene alkylaryl ether sulfate salts, particularly preferred ones are as follows.

Component (B), ie, the dialkyl sulfosuccinate salt represented by the above general formula B, belongs to anionic surfactants, has a relatively low water-holding ability, and is very poor in detergency and anti-recontamination ability.

In component (2) represented by this general formula B, R3 and R4 preferably have 7 to 13 carbon atoms.

Ingredient (0, that is, the polyoxyalkylene alkyl ether phosphate salt or polyoxyalkylene alkylaryl ether phosphate salt represented by the general formula 〇) belongs to nonionic anionic surfactants, and has relatively excellent re-fouling prevention ability. , water-holding capacity and cleaning power against water-soluble dirt are relatively poor.

The component represented by this general formula C (0) If the number of carbon atoms in R6 is less than 8, the surfactant ability will decrease and the detergency will be poor, whereas if it exceeds 18, the oil solubility will be strong and the water-holding capacity will decrease. becomes smaller.

When R2 exceeds 50, the hydrophilicity and lipophilicity become too strong, resulting in poor detergency.

Note that component (C) may be a mixture of monoesters and diesters, and may also contain nonionic components that are not esterified.

Among these polyoxyalkylene alkyl ether phosphate salts and polyoxyalkylene alkylaryl ether phosphate salts, particularly preferred activators are as follows.

These components (4), (Bl and (C)) all belong to anionic surfactants, and suitable counter ions are cations of alkali metals, alkaline earth metals, and alkanolamines (alkanol ammonium ions).

The dry cleaning detergent of the present invention requires the use of these three components.

For example, the combination of components (4) and (B) alone is inappropriate because the detergency does not improve, and the combination of components (B) and C
A combination of only C) is also unsuitable because the detergency does not improve.

Furthermore, when blending these three components, the blending ratio of each component must be extremely limited in order to achieve the intended purpose of the present invention.
A): Component (B): Component (00) The proportions should be 5-50:20-60:3-60, respectively in parts by weight.

As is clear from the results in Examples described below, if the ratio of the three components is outside this range, a detergent that maintains a good balance in terms of detergency, anti-recontamination ability, and water-holding ability cannot be obtained.

In the present invention, when the three components (4), (B), and (Q) are used alone, at least one of detergency, anti-recontamination ability, and water-holding ability is inferior, but by blending these in a specific ratio, The fact that these properties are highly improved and a good balance can be maintained is a completely unexpected and remarkable effect.

For example, in terms of water-holding ability, the synergistic effect of component (4) and component CB) or component (B) and component (0) achieves a much better effect than when each is used alone;
Although component (B) alone or component 0 alone was insufficient in terms of anti-recontamination ability, a synergistic effect can be achieved by blending the three components in a specific ratio.

In the dry cleaning detergent composition of the present invention, in order to significantly improve its performance, an amidoamine type amphoteric surfactant represented by the following general formulas (a) to (f) is used as the fourth component. One or two of these amidoamine type amphoteric surfactants (in the above formula, R is an alkyl group or alkenyl group having 8 to 20 carbon atoms, and M is a hydrogen atom, an alkali metal, an alkaline earth metal, or an alkanolamine). Originally, it is known as an active agent with excellent softening effect and antistatic effect, and it is an active agent with relatively poor detergency, anti-recontamination ability, and water-holding ability, but as the fourth component of the present invention. When included, the water-holding ability of the detergent is significantly improved.

Moreover, the cleaning power and re-contamination prevention power of the resulting cleaning agent are also extremely good.

The amount of the amidoamine type surfactant added is 1 to 30 parts by weight, preferably 1 to 100 parts by weight of the above three components.
~15 parts by weight.

The dry cleaning detergent of the present invention may contain other surfactants used in general dry processing, especially alkylbenzene sulfonates, as well as various conventional solvents,
Additives and the like can be added as auxiliaries.

For example, these adjuvants include water, lower alcohols, glycerin, solubilizers such as urea, fluorescent dyes, fragrances,
Examples include dyes, pH adjusters, etc. These adjuvants include:
An appropriate amount can be added as long as it does not particularly interfere with the effects of the composition of the present invention.

The target fibers to which the cleaning agent of the present invention is applied are not limited to natural animal and plant fibers, but also various synthetic fibers and blends thereof,
Includes pulp fibers, etc.

The dry cleaning detergent composition of the present invention has excellent cleaning power that could not be achieved with conventional products.
It has anti-recontamination ability and water-retaining properties, and will greatly contribute to the field of dry cleaning technology.

Next, the present invention will be explained in more detail with reference to Examples.

Example 1 A polyoxyalkylene alkyl ether sulfate salt or a polyoxyalkylene alkylaryl ether sulfate salt, a dialkyl sulfosuccinate salt,
A dry cleaning detergent composition comprising a polyoxyalkylene alkyl ether phosphate salt or a polyoxyalkylene alkylaryl ether phosphate salt was prepared, and the cleaning composition of the prepared detergent composition against water-soluble dirt was evaluated by the following evaluation method. We evaluated the performance of water retention, anti-recontamination ability, and water holding capacity.

The results are shown in Table 1.

Note that the symbol TEA in the table represents triethanolamine.

(1) Detergency against water-soluble stains A polyester cloth (cut into 1OcfrL x 20cffL) was coated with about 6% owf (ratio to the weight of the fibers) of NaCl, and half (10CrfL x 1
0CrfL) is the amount of NaC11 before washing, and the other half (
10mX10CrfL) 5crub-0-mete
It was washed using a perchloroethylene cleaning solution containing an active agent concentration of 1 to 0.1 at 25°C for 20 minutes using an R washer.

Next, the amount of NaCA before and after washing was determined by AgNO3 standard solution titration, and the detergency was determined from the following formula.

(2) Re-contamination prevention ability Wool muslin cloth with Yukakyo dirt attached (Yukakyo dirt cloth) and white cotton cloth at the same time for 5crubs -0-m
Using an ether washer, a perchlorethylene solution with an active agent concentration of 1 was heated at 25°C.

The treatment was carried out for 25 minutes.

Next, the reflectance of the white cotton cloth before and after treatment was measured, and the recontamination prevention ability was calculated from the following formula.

(3) Add 5 g of activator to 40 cc of water-holding capacity perchlorethylene solvent,
While shaking well, water is added dropwise from the billet, and the amount of water added just before turbidity occurs is defined as the water-holding capacity.

Example 2 35 parts by weight of polyoxyethylene (3 mol) Na lauryl alcohol sulfate, 50 parts by weight of dioctyl sulfocinate Na salt, and 15 parts by weight of polyoxyethylene (7 mol) oleyl ether phosphate Na salt, and amidoamine type A dry cleaning detergent composition containing 10 parts by weight of an amphoteric surfactant was prepared, and its performance was tested in the same manner as in Example 1.

Claims (1)

[Scope of Claims] 1. Surfactant A5 contains surfactants represented by the following general formulas A, B and C as active ingredients, and when the total of surfactants AB and C is 100 parts by weight. ~50
A detergent composition for dry cleaning, characterized in that the ratio is 20 to 60 parts by weight of surfactant B and 3 to 60 parts by weight of surfactant C. A: Ether sulfate salt (wherein R1 is an alkyl group or alkenyl group having 8 to 20 carbon atoms, R2 is a hydrogen atom or a methyl group, n is 1 to 10
, M is an alkali metal, an alkaline earth metal, or an alkanolamine). , alkaline earth metal or alkanolamine) C: ether phosphate salt (wherein R5 is an alkyl group or alkenyl group having 8 to 18 carbon atoms, R6 is a hydrogen atom or a methyl group, and B2 is 1 to 50
is an integer of
y R6 and B2 have the same meanings as above) 2 A surfactant A containing a surfactant represented by the following general formulas A, B and C as an active ingredient. When the total of B and C is 100 parts by weight, the following composition is used in the proportions of 5 to 50 parts by weight of surfactant A, 20 to 60 parts by weight of surfactant B, and 3 to 60 parts by weight of surfactant C. A detergent composition for dry cleaning, characterized in that it contains one or more of amidoamine type amphoteric surfactants represented by general formulas (a) to (f). A: Ether sulfate salt (wherein R1 is an alkyl group or alkenyl group having 8 to 20 carbon atoms, R2 is a hydrogen atom or a methyl group, nl is 1 to 1
0 integer, Ml is an alkali metal, alkaline earth metal or alkanolamine) B Nidialkyl sulfosuccinate salt (wherein R3 and R4 are an alkyl group or alkenyl group having 6 to 16 carbon atoms, M2 is an alkali metal , alkaline earth metal or alkanolamine) C: ether phosphate salt (wherein R5 is an alkyl group or alkenyl group having 8 to 18 carbon atoms, R6 is a hydrogen atom or a methyl group, and B2 is 1 to 50
X and Y are substituents represented by the following formula, where M is an alkali metal, alkaline earth metal or alkanolamine
t R6 and B2 have the same meanings as above) D Niamide amine type amphoteric activator (In the above formula, R is an alkyl group or alkenyl group having 8 to 20 carbon atoms, M is a hydrogen atom, an alkali metal, an alkaline earth metal or alkanolamine)