JPH02189396A - Ferrosoferric salt-containing detergent composition - Google Patents

Abstract

PURPOSE:To obtain the title compsn. useful for a detergent compsn. aiming at washing household materials such as those for kitchen use and clothing use, preventing skin troubles caused by various compds. ordinarily used for detergents and enforcing regenerating and physiological functions of the skin by compounding a ferrosoferric salt in the detergent compsn. CONSTITUTION:A detergent composition comprising pref. 10<-5>-10wt.%, based on the compsn., ferrosoferric salt prepd. by adding a water-soluble ferrous salt, e.g. iron (II) sulfate, in a large amt. of an aq. alkali soln., oxidizing part of the iron (II) ions to iron (III) ions. filtering excess iron hydroxide or hydrated oxide, neutralizing the obtd. soln. with an acid and concentrating and drying the soln.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides foods containing bivalent and trivalent complex iron salts (hereinafter referred to as complex iron salts) that have extremely unique hygienic and physiological effects; Items intended for cleaning tableware, cooking utensils, etc.
and related to cleaning of textile products such as clothing.

[Conventional technology]

With the diversification and rationalization of living environments, the need for detergent compositions of this type has increased in terms of both quality and quantity, and a wide variety of detergent compositions are now on sale.

Due to the Westernization of dietary habits and the trend toward high nutrition, tableware and cooking utensils are becoming increasingly dirty due to a diet culture that focuses on fat and protein. In particular, there is a need for kitchen detergents with stronger cleaning and degreasing power to remove residual agricultural chemicals and pest control waxes associated with the consumption of fresh vegetables and fruits.

In addition, clothing products such as diapers and underwear that have been subjected to various chemical treatments are being used frequently, and laundry detergents that can increase the cleaning effect without impairing the material or texture are being developed.

[Problems to be Solved by the Invention] However, it is also true that cases of damage in the field of dermatology, where household detergent compositions are thought to be the main cause, are rapidly increasing.

According to the ``Hospital Monitor Report on Health Hazards Related to Household Goods'' (1985) compiled by the Household Products Safety Measures Office of the Ministry of Health and Welfare based on reports from dermatology monitor hospitals, among patients who are new to dermatology outpatient clinics, home A total of 464 cases of health damage that were presumed to be related to the product were reported in one year.
Among these cases, 156 cases were caused by household detergent compositions, accounting for 34% of the total.

In particular, we cannot overlook the fact that more than half of these cases were caused by housewives and others with progressive palmar keratoses. It has been reported that there are relatively few cases of complete cure for this symptom, as it takes a long time to treat and patients are unable to avoid washing, which hinders the improvement of symptoms. Furthermore, cases of damage such as contact dermatitis caused by rubber and vinyl gloves used for the purpose of avoiding this vicious cycle are increasing.

According to the same report, there were also 30 cases of contact dermatitis caused by diapers and underwear. In this case too, the majority of detergent ingredients adsorbed and remaining on the fibers, especially petroleum-based anion activators with strong degreasing power, fragrances, fluorescent bleaches, etc.

The protective function of human skin tissue is maintained by a layer of originally tough keratinized cells, a sebum film secreted and formed on the epidermal surface, and natural moisturizing factors present in the epidermal layer. However, detergent ingredients with too strong detergent and degreasing power partially decompose the keratin that maintains this protective function, causing the sebum film and natural moisturizing factors to be washed away. As a result, the skin's ability to retain moisture declines, leading to dryness and hyperkeratosis of the epidermis, and this repetition causes xeroderma, keratosis, or progressive palmar keratosis, which frequently occurs in housewives. Particularly in the case of infants and the elderly, who have weak protective abilities, their skin becomes sensitive, and skin irritation from external irritants can cause diaper rash and senile pruritus.

Based on the above circumstances, we have conducted extensive research into detergent compositions that can be safely used by infants, the elderly, and people with hypersensitivity, and have excellent physiological and hygienic effects. The present invention was completed based on the conclusion that only detergent compositions containing the above should satisfy the objective.

(Means for Solving the Problems) The divalent and trivalent composite iron salts used in the present invention are inorganic salts such as hydrochlorides, sulfates, and phosphates that exhibit intermediate properties between divalent iron salts and trivalent iron salts. , complex salts of divalent iron and trivalent iron of organic salts such as citrate dilactate, and the like.The most preferable complex salts for the present invention include anhydrides and oxides of the complex salts containing divalent and trivalent iron. Aqua complexes that form spinel-type structures with iron ions are raised.

The above complex salt can be produced by the following method. A water-soluble divalent iron salt such as ferrous sulfate is added to a large amount of alkaline aqueous solution, some of the divalent iron ions are oxidized to trivalent iron ions, and then excess iron hydroxide or hydrate is removed. The resulting oxides are filtered off.

After neutralizing this solution with an acid, it is concentrated and evaporated to dryness to obtain the crude salt of the present invention. Further, by purifying this by an appropriate method, a divalent and trivalent complex iron salt that can be incorporated into the detergent composition of the present invention can be obtained.

Alternatively, magnetite powder (FeI[・Fe7・0
The divalent and trivalent composite iron salt of the present invention can also be prepared by dissolving 4) in a strong acid and adding it to a large amount of alkaline solution, filtering off the excess iron salt precipitate, neutralizing it, and evaporating it to dryness. can be obtained.

In the above production method, when sodium hydroxide is used as an alkaline agent and neutralized with hydrochloric acid, a composite iron salt with sodium chloride as a carrier is obtained, and when neutralized with sulfuric acid, a composite iron salt with sodium sulfate as a carrier is obtained. can get. In addition, a nonionic surfactant such as polyoxyethylene sorbitan fatty acid ester or polyoxyethylene alkyl ether is used as a solubilizer or emulsifier in a concentrated aqueous solution of a complex iron salt, and essential oils, vitamin oils, and various By mixing with the oil component, a composite iron salt using the oil component as a carrier can also be obtained.

Detergent compositions obtained by blending the composite iron salt of the present invention include kitchen detergent compositions for cleaning various foods such as fresh vegetables and fruits, tableware, and cooking utensils, diapers, and underwear. This includes not only laundry detergent compositions including laundry detergent compositions, but also all detergent compositions intended for cleaning daily life-related materials such as bathtubs, bathtubs, and furniture. When used in these compositions, various commonly used ingredients, such as anionic, nonionic, amphoteric, and cationic surfactants, solvents, auxiliary agents such as virgoo, pH adjusters, and chelating agents are used. , inorganic salts, abrasives, oil ingredients, fabric softeners, various plant extract ingredients, herbal medicine ingredients, vitamins, proteins and their hydrolyzed compositions, enzymes and fragrances, pigments, antioxidants, preservatives, etc. A composition can be obtained.

Furthermore, the product can be in various forms such as powder, granules, pellets, liquid detergent, and solid detergent.

The amount of the complex iron salt to be blended into the detergent composition of the present invention, including the carrier, is 10-5 to 1% by weight based on the detergent composition.
0%, preferably in the range of 10-' to 10%. If the blending amount is greater or less than this range, the effects of the present invention may be weakened.

[Effect]

By using the detergent composition of the present invention, in addition to the individual effects of the other ingredients, the effectiveness of the composite iron salt prevents the decline in the defense function of skin tissue, further improves tissue function and promotes regenerative ability. Effects can be obtained. It also has amazing effects in maintaining and restoring the skin's normal physiological functions, such as strengthening resistance to irritating substances, preventing microbial contamination, and blocking harmful ion reactions.

[Effects of the Invention] The detergent composition of the present invention has the effect of reinforcing and restoring the nonionic reaction system of biological systems and normalizing the functions of living organisms, so that the following effects can be obtained.

Such an effect cannot be obtained by using ordinary divalent or trivalent iron salts alone or in combination, but can only be obtained by the complex salt of the present invention.

(1) Enhancement of skin regeneration function and physiological function By using the detergent composition of the present invention, the skin's natural metabolic function can be normalized and restored, and can be rapidly strengthened and restored. For example, normalization of advanced keratin abnormalities such as progressive digital palmar keratosis, removal of spots due to pigmentation, and recovery of epidermal abnormalities caused by lack of sebum membrane such as cracks and red blemishes are quickly achieved. Furthermore, various skin disorders can be prevented by promoting normalization of skin physiological functions.

(2) Enhancement of adaptability to environmental changes It is possible to maintain the skin's original functions by strengthening the adaptability of the skin to external irritants, cold, heat, and exposure to ultraviolet rays. For example, by suppressing the entry of sensitizing substances from the outside, it is possible to prevent the onset of contact dermatitis, and by controlling the formation of sebum 11 according to the environment, the skin can be maintained in a beautiful state. can.

(3) Inhibition of abnormal growth of microorganisms It is possible to prevent inflammation caused by local abnormal growth of external microorganisms and resident bacteria on the skin, as well as secondary contamination by Pseudomonas pyogenes. In addition, by incorporating the composite iron salt, preservatives that are normally incorporated in detergent compositions become unnecessary, and sensitization problems caused by such agents can also be prevented.

(4) Inhibition of harmful ion reactions By suppressing harmful ion reactions and free radical reactions to living organisms, such as skin irritation reactions caused by external chemicals and the formation of lipid peroxides due to ultraviolet light, etc., non-metabolized substances are released into living organisms. can prevent skin aging by preventing the accumulation of It can also prevent discoloration, shrinkage, and changes in texture of clothing due to adsorption and accumulation of lipid peroxide on clothing. Furthermore, since composite iron salts can prevent oxidative deterioration of detergent components, there is no need to incorporate antioxidants that tend to cause sensitized skin disorders.

In addition to the cleaning effect, the detergent composition of the present invention has extremely excellent effects not found in conventional detergent compositions of the same type, in that it can be expected to have significant effects that are essential for the skin and target cleaning products in the above four categories. It is possible to demonstrate the

〔Example〕

Next, examples will be given to concretely demonstrate the effects of the present invention, but the present invention is not limited to these examples.

Disaster■Production method of divalent and trivalent composite iron salt■1.
0% aqueous solution 100 relative, 2.0% sodium hydroxide solution II! , and blow air while stirring to oxidize some of the Nivalent iron ions. After the oxidation is complete, excess iron hydroxide or hydrated oxide is filtered off, and the pH is adjusted with hydrochloric acid.
Neutralize to 6.5-7.0 and evaporate to dryness. This white residue was leached with 80% ethyl alcohol, and the leached liquid was evaporated to dryness to obtain the composite iron salt of the present invention. 1 each of .001% sodium chloride solution
Add 0.1 g of electrolytic copper powder to each colorimetric tube, shake well, and then add 5 d of 10% nitric acid test solution. The control sodium chloride solution immediately reacted, generating hydrogen gas and giving the solution a blue color due to copper ions; however, in the complex salt test solution of the present invention, the reaction did not proceed even after being left at room temperature for 24 hours. It is recognized that the product of the present invention has the ability to inhibit ionization reactions.

Disaster relief l Method for manufacturing divalent and trivalent composite iron salt ■ Dissolve 1.0 g of magnetite powder (FeLFe F ・04) in 8 ml of hydrochloric acid, add to 2.0% aqueous sodium hydroxide solution 11, and stir. do. After standing still for about 1 hour, the injected material was filtered, neutralized with hydrochloric acid to pH 6.5-7.0, and then evaporated to dryness under reduced pressure. The residue is leached with 80% isopropyl alcohol and the leaching solution is evaporated to dryness. By repeating this alcohol purification process, a powder of bivalent and trivalent composite iron salt supported on about 0.1 g of sodium chloride is obtained.

The presence of divalent and trivalent iron salts was confirmed by coloring reaction of this powder dissolved in a small amount of purified water with potassium ferricyanide and orthophenanthroline.

Ferrous sulfate (Fe SO4.7 Hz O) 1. 0
Dissolve g in 100 ml of purified water and add 2.0%
It is added to an aqueous sodium hydroxide solution IA, and air is blown in while stirring to oxidize a portion of the divalent iron ions. After the oxidation is completed, excess iron hydroxide or hydrated oxide precipitate is filtered off, the pH is neutralized to 6.5 to 7.0 with hydrochloric acid, and the product of the present invention is evaporated to dryness. It is possible to obtain complex iron salt-containing sodium sulfate that can be used in detergent compositions.

Disaster relief foundation detergent (general type) Ingredients Amount (wt%) Linear sodium alkylbenzene sulfonate 26.0 P, O, E, alkyl ether sodium sulfate solution (concentration 30%) Potassium phosphate fragrance 3 Composite iron salt purified water of dye example 1 10.0 2.0 Amount passed 1.0 Remaining total 100.0
The above-mentioned formulation was manufactured by a conventional manufacturing method to obtain a kitchen detergent of the present invention.

Separately from this example, we prepared a detergent composition with the same formulation but excluding the complex iron salt, and conducted a comparative panel test with 50 household housewives over a period of 3 months, and found that the kitchen detergent of this example In addition to having excellent cleaning performance, the product did not irritate the skin of fingers and palms compared to the control product, and no degreasing, dryness, or regression of keratosis of the stratum corneum was observed.

Koushibanko kitchen detergent (concentrated type) Ingredients Amount (weight%) P, O,
E, alkyl ether sulfate triethanolamine solution (concentration 30%) 25.0 Coconut oil fatty acid jetanolamide 1O9OF, O
oE, Alkyl ether 5.0 Furkylimidazolinium betaine (concentration 40%) 15.0 Ethanol 5.0 Fragrance 0
Dye J amount Composite iron salt of Example 2 0.01 Purified water
Remaining total
100.0 A kitchen detergent of the present invention was obtained by manufacturing the above-mentioned formulation using a conventional manufacturing method.

Separately from this example, as a control, we made a kitchen detergent with the same formulation except for complex iron salts, and conducted a comparative panel test with 50 household housewives during the 3-month period. In addition to having excellent cleaning performance, the product did not irritate the fingers, palms, and skin compared to the control product, and no degreasing, dryness, or hyperkeratosis of the stratum corneum was observed.

Detergent for cooking utensils and bathtubs (abrasive type) Ingredients Amount (wt%) Linear sodium alkylbenzene sulfonate 15.0 P, O, E, sodium alkyl ether sulfate solution (concentration 30%) 15 .0 Coconut oil fatty acid diethanolamide 3.0 Glycerin
25.0 Abrasive (silicon dioxide powder) Fragrance 0 Pigment Complex iron salt purified water of Example 1 20.0 Appropriate amount 0.5 Remaining total 10
The cooking utensils and bathtub detergent of the present invention were obtained by manufacturing the above-mentioned formulation using a conventional manufacturing method.

Separately from this example, as a control, cooking utensils and bathtub detergents were made with the same formulation but without the complex iron salt, and a comparative panel test was conducted by 50 housewives during the 3-month period. The detergent for cooking utensils and bathtubs has excellent cleaning performance and is less irritating to the skin such as fingers and palms than the control product, and no degreasing, dryness, or hyperkeratosis of the stratum corneum of the epidermis was observed. Ta.

Implemented laundry detergent (liquid type for general textiles) Ingredients Amount (wt%) Linear sodium alkylbenzene sulfonate 25.0 P, O, E, alkyl ether sodium sulfate liquid (4 degrees 25% > 30.0 P ,
O3E, alkyl ether 5.0 polypropylene glycol 5.0 ethanol
5.0 fragrance 8 pigments
Appropriate amount of composite iron salt of Example 1
1.0 purified water
Remaining total
ioo,.

The laundry detergent of the present invention was obtained by manufacturing the above-mentioned formulation using a conventional manufacturing method.

Separately from this example, as a control, we made a laundry detergent with the same formulation except for complex iron salts, and conducted a comparative panel test with 50 household housewives during the 3-month period. There was no change in the cleaning ability or the color tone or texture of the object to be washed, and there was no contact skin irritation caused by the object to be washed, such as diapers or underwear, completely confirming the effects of the present invention.

Implementation dish L Laundry detergent (enzyme-containing powder type) Ingredients Amount (wt%) P, O
oE, alkyl ether 1O10 linear alkylbenzenesulfonic acid triethanolamine 50.0 Coconut oil fatty acid diethanolamide 10.0 Protease 1.0 Fragrance 1 Color
Appropriate amount Sodium compounded with composite iron salt of Example 3 10.0 Sodium sulfate
Remaining total
100.0 A laundry detergent of the present invention was obtained by manufacturing the above formulation using a conventional manufacturing method.

Separately from this example, as a control, we made a laundry powder detergent with the same formulation but without the complex iron salt, and conducted a comparative panel test with 50 household housewives during the 3-month period. The powder detergent did not change the cleaning ability or the color tone or texture of the object to be washed (and there was no contact skin irritation caused by the object to be washed, such as diapers or underwear), completely confirming the effectiveness of the present invention. .

It is clear from the above panel test results that the detergent compositions according to the present invention in Examples 4 to 8 have significant and extremely excellent effects.

Patent applicant: Shizen Co., Ltd. Agent: Patent attorney Yoshiharu Yoshida

Claims (1)

[Claims] A detergent composition characterized by containing a divalent and trivalent composite iron salt.