JPH05209194A - Detergent composition - Google Patents

Abstract

PURPOSE:To provide a detergent composition for cleaning hard surfaces of industrial parts, products, etc., having safety and good detergency without causing any environmental problems. CONSTITUTION:The objective detergent composition is composed of natural polysaccharides, a basic antimicrobial substance capable of enhancing the detergency of the natural polysaccharides and cyclic amidines capable of removing fluxes, etc. All the materials have low toxicity and environmental safety is high. Thereby, cleaning can be carried out at high cleanness.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention can be applied to a composition used for cleaning, particularly to the field of industrial parts and products requiring a high degree of cleaning, and has a high environmental safety. It relates to a composition.

[0002]

2. Description of the Related Art Conventionally, halogenated hydrocarbons or surfactants have been used for cleaning hard surfaces of various industrial parts and products with a high degree of cleaning. As the former halogenated hydrocarbon, a chlorine-based solvent such as trichloroethylene, perchloroethylene, 1,1,1-trichloroethane or a freon-based solvent such as trichlorotrifluoroethane is selectively used, and immersion, ultrasonic vibration, It is used for cleaning in the manufacturing process or finish cleaning by means such as paper cleaning.

On the other hand, as the latter surfactants, anionic surfactants such as anionic surfactants, cationic surfactants, nonionic surfactants and amphoteric surfactants are used, which may be used alone or in combination. Therefore, it is provided for cleaning by a method such as immersion, ultrasonic vibration, brushing, and spraying. Further, in order to enhance the detergency of these surfactants, JP-A-3-140486 and 2-12
As disclosed in Japanese Patent No. 3193, a combination of a surfactant and an organic solvent is also performed.

[0004]

However, chlorine-based solvents such as trichlorethylene, perchloroethylene, and 1,1,1-trichloroethane are all toxic and therefore have a problem in safety to the human body. Careful consideration is required for its handling. Further, the CFC-based solvent is excellent in safety for the human body, but on the other hand, there is a problem in environmental safety since it destroys the ozone layer, and there is a problem that its use will be restricted in the future.

On the other hand, surfactants are more safe than these solvents, but their cleaning power is inferior to several levels, their biodegradability is small, and waste liquid treatment for environmental pollution is strictly performed and discarded. There is a need. In addition, if the cleaning condition is severed for the purpose of enhancing the cleaning power, the practicality is lowered and the cleaning device becomes complicated and large. Further, as in the above-mentioned publication, even when the detergent power is enhanced by combining a surfactant and an organic solvent, there is still a problem of biodegradability of the surfactant itself, which is not preferable from the viewpoint of environmental pollution. ..

The present invention has been made in consideration of the above circumstances, and an object thereof is to provide a detergent composition having a good detergency, high safety, and no environmental problems. And

[0007]

[Means and Actions for Solving the Problems] In order to achieve the above object, as a result of diligent research by the present inventor, a composition containing a natural polysaccharide, a basic antibacterial substance and a cyclic amidine as a main component has toxicity. The present invention has been completed by discovering that it is small, does not cause environmental problems, and has good cleaning power.

That is, the cleaning composition of the present invention is characterized by containing natural polysaccharides, basic antibacterial substances and cyclic amidines as active ingredients.

The natural polysaccharides used in the present invention are plant-derived or microbial fermentation-derived polysaccharides such as xanthan gum, glucomannan, quince seed gum, locust bean gum, gum arabic, inulin, guar gum, tara gum, tamarind seed gum, Tragacanth gum, karaya gum, elsinan, ghatty gum, arabinogalactan, dextran, pullulan, gellan gum, curdlan, sodium alginate, copper-carrageenan, lambda-carrageenan, ioter-carrageenan, alpha-cyclodextrin, beta-cyclodextrin, gamma-cyclodextrin, pectin , Hyaluronic acid, chondroitin 4 sulfate, chondroitin 8 sulfate, dermatan sulfate, chondroitin 4,8 disulfate, dermatan 4,8 disulfate One or more may be selected from keratan among sulfate and heparan sulfate.

These natural polysaccharides have properties such as prevention of redeposition of stains on cleaning products, prevention of rough hands during hand-wiping, maintenance of moisture retention and viscosity adjustment, and they are the main components of the cleaning composition of the present invention. ing. In addition, since it is derived from plant or microbial fermentation, it has low toxicity and is easily decomposed by organisms, and thus is extremely safe for the environment. Furthermore, the quality is stable and the supply amount can be secured sufficiently. The blending amount of such natural polysaccharide is 0.01 to 10 w.
When t% is good and is less than this, the detergency is reduced, while when it is more than t, the viscosity change of the detergent is large and the detergency is reduced. Although one kind of this natural polysaccharide may be used, it is preferable to mix two or more kinds depending on the object to be washed and the stains.

The basic antibacterial substance is added for the purpose of enhancing the detergency of natural polysaccharides. That is, the natural polysaccharide is
Although it has the above-mentioned characteristics, its detergency is still insufficient, and the basic antibacterial substance acts so as to activate the hydrophilizing power of wrapping the stain of this natural polysaccharide. Therefore, by adding the basic antibacterial substance, the detergency of the detergent composition as a whole is dramatically increased. As the basic antibacterial substance, one or more of polyhexamethylene biguanidine hydrochloride, dodecylguanidine hydrochloride, chlorhexidine, chlorhexidine hydrochloride and benzoate can be used. The amount of the basic antibacterial substance blended is 0.3 to
When the amount is 5 wt% or less, the activation of the detergency of the natural polysaccharide is insufficient, and when the amount is more than 5%, the detergency corresponding to the blending amount cannot be enhanced. This basic antibacterial substance can be appropriately increased or decreased within the above range according to the blending amount of the natural polysaccharide, and two or more kinds can be used in combination.

The cyclic amidines include imidazoline,
One or more of tetrahydropyrimidine and diazabicycloundecene are selected. The addition of this cyclic amidine enhances the ability to remove special resin stains such as flux adhering to the electric substrate, etc., and promotes highly clean cleaning. The amount of the cyclic amidine compounded is 0.1
40 wt% is good, and if the amount is less than 40%, the cleaning ability cannot be increased.

The detergent composition of the present invention can be prepared by adjusting the above-mentioned respective components to predetermined amounts and using the balance of water (pure water is good). In this case, a small amount of defoaming agent such as siloxane oil added to a general cleaning liquid can be added to the above elements.

The detergent composition of the present invention can be easily and satisfactorily washed by using ordinary washing means such as dipping, ultrasonic vibration, shaking, and spraying, alone or in combination. In particular, in the case of cleaning an electric substrate on which a resin component such as flux is attached, more effective cleaning can be performed by using shaking, heating, and ultrasonic vibration in combination. Further, the composition having the above structure is safe, has no adverse effect on the environment, and does not require waste liquid treatment after use, or can be easily carried out even if necessary.

[0015]

[Example] As a natural polysaccharide, locust bean gum,
Glucomannan, quince seed gum, xanthan gum, beta-cyclodextrin as basic antibacterial substances, polyhexamethylene biguanidine hydrochloride, dodecyl guanidine hydrochloride, cyclic amidines as imidazoline, latrahydropyrimidine, diazabicycloun Decene was selected to prepare a cleaning composition having the compounding ratio (wt%) shown in Table 1. That is, first, the natural polysaccharides were dissolved in pure water having the mixing ratios shown in Table 1 at each mixing ratio with stirring, and then the basic antibacterial substance was added and dissolved at each mixing ratio, and then the cyclic amidines were added. Was added and dissolved to prepare a cleaning solution. Further, as a comparative example, a fluorine-based organic solvent was used.

[0016]

[Table 1]

The cleaning liquid thus prepared was subjected to the following tests.

(1) Cleaning Ability Test A square electric board having a side of 3 inches was subjected to a flux treatment to be a cleaning object, and each electric cleaning solution heated at 40 ° C. was sprayed for 1 minute for cleaning. The cleaning state was visually inspected, and the results are shown in the "cleaning capacity" column of Table 1. In the same column, “◯” indicates that the surface of the electric substrate is clean and has no flux residue, “Δ” indicates that there is some flux residue, and “x” indicates that there is much flux residue.

(2) Safety evaluation Each cleaning solution in Table 1 was diluted 100 times, and then the BOD and C of each solution were evaluated.
The OD was measured. The standard value is 160 for both BOD and COD.
ppm and the measurement results are shown in the "Safety evaluation" column. In the same column, “○” indicates that the measured value is below the standard value.
“Δ” indicates those around the reference value, and “x” indicates those above the reference value.

(3) Environmental safety The "environmental safety" column of Table 1 shows the environmental resistance of each cleaning solution. “○” indicates that there is no problem in environmental safety, “Δ” indicates that there is some problem, and “x” indicates that there are many problems.

[0021]

As described above, the detergent composition of the present invention has good detergency and safety, and does not cause environmental problems, and is hard for various industrial parts and industrial products. It can be suitably used for cleaning the surface.

Continuation of the front page (51) Int.Cl. ⁵ Identification number Office reference number FI technical display location C11D 7:46 7:32 7:30) (72) Inventor ▲ Elbow ▼ Masamichi No. 2 Hatagaya, Shibuya-ku, Tokyo No. 43-2 Olympus Optical Co., Ltd. (72) Noboru Yamada No. 43-2, Hatagaya, Shibuya-ku, Tokyo Tokyo No. 43-2 Olympus Optical Co., Ltd.

Claims (1)

[Claims] 1. A detergent composition comprising a natural polysaccharide, a basic antibacterial substance and cyclic amidines as active ingredients.