JPS59114340A - Washing of drain pipe - 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 a method for cleaning drain pipes.In recent years, with the westernization of general housing and the appearance of high-rise buildings especially in urban areas, cleaning methods have been applied to drain pipes such as kitchens, toilets, bathrooms, etc. The pipes become clogged with various food waste, excrement, bathroom grime, hair, paper, and other fibrous substances, or they gradually accumulate on the inner walls of the pipes. In other words, fats and oils, proteins, carbohydrates, fibers, earth and sand, iron rust, soap scum, limescale, etc., along with bacteria and mold, adhere to the pipes in the form of a foul-smelling, filthy slime, which obstructs the flow of water inside the pipes. .

In order to remove such dirt accumulated on the inner wall surface of the drain pipe, various cleaning agents have been proposed. These cleaning agents are used by flushing them with water, but contact between the cleaning agent and the slime is not sufficient, and stain removal is incomplete.

Based on the above-mentioned circumstances, the inventors of the present invention have conducted extensive studies on the method of cleaning drain pipes, and found that a small container is filled with cleaning liquid in advance, and while the cleaning liquid overflows from the small container, the inside of the drain pipe is cleaned. It was discovered that drainage pipes can be easily cleaned by letting the water flow down the wall. The present invention is based on this knowledge.

The present invention will be explained in detail below. In the present invention, the cleaning liquid is a mixture of a cleaning agent and water or warm water. The cleaning agent is not particularly limited and general commercially available products can be used, but the following examples are preferably used.

(1) Strong alkalis such as caustic soda and caustic potash, or mixtures of these and aluminum scraps. This reacts with water and generates heat and hydrogen gas to dissolve the slime. (
(2) Strong acids such as sulfuric acid, hydrochloric acid, nitric acid, orthophosphoric acid or sulfamic acid (US Pat. No. 3,538,008, Japanese Patent Publication No. 4
No. 8-31724) (3) Chlorinated hydrocarbons and surfactants (U.S. Pat. No. 355
(No. 3145) (4) Enzymes, microorganisms (Special Publication No. 38-26465) (5
) No.) peroxide (Unexamined Japanese Patent Publication No. 52-103405) In the present invention, in particular, the peroxide (5) is mainly used, and a surfactant and a water-soluble acidic substance are blended therein. Preferably used. Examples of non-sulfuric peroxides include percarbonate F RI A (2Na2CO-; ・311202), sodium perborate (NaBO3・411□0), sodium sulfate-hydrogen peroxide adduct (4Na2S04-Na
Cl-2H202), hydrogen peroxide adduct of sodium silicate (Na2SiO3・311202), hydrogen peroxide adduct of sodium birophosphate (Na, P2O7・nl
l□02), and sodium percarbonate is particularly preferred. As the surfactant, a powdered or powdered one is preferably used. As the powdered surfactant, anionic or heptadionic surfactants such as sodium lauryl sulfate, sodium alkylbenzenesulfonate, sodium dicetyl sulfonate succinate, and cypentasaccharide fatty acid ester are used. Liquid surfactants such as polyoxyethylene alkyl ethers, polyoxyethylene phenyl ethers, fatty acid alkanolamides, polyethylene glycol fatty acid esters, and sorbitan fatty acid esters can be used as surfactants such as silicic acid gel, silicic acid Aluminum, activated alumina, activated clay, colloidal magnesium aluminum silicate, sulfur sulfate, and other powdered chemicals occluded are used. As water-soluble acidic substances, sulfamic acid, succinic acid, hexamaric acid, maleic acid, tartaric acid, oxalic acid, malonic acid, crotonic acid, benzoic acid, acrylic acid, lactic acid, malic acid, citric acid, etc. are used. In particular, sulfamic acid is preferably used. The following range is selected as the mixing ratio of these.

Inorganic peroxide: 5-95% by weight, preferably 10-90% by weight Surfactant: 0.1-30% by weight,
Preferably 1 to 20% by weight Acidic substance 5 to 90% by weight, preferably 10 to 80% by weight In addition to these three components, sodium bicarbonate and soda carbonate are added as foaming power enhancers. , carbonates such as sesquicarbonate soda,
As foam thickeners, water-soluble polymer compounds such as carboxymethyl cellulose and poval, or inorganic thickeners such as bentonite, and as cleaning power enhancers, carbonates (soda carbonate, soda bicarbonate, etc.), sulfates (sodium chloride, etc.) etc.), silicates (
(sodium metasilicate, etc.), phosphates (sodium tripolyphosphate, potassium birophosphate, etc.), chelating agents (EDTA salt, NTA salt, etc.), silica powder, zeolite, etc. as anti-caking agents, dyes, pigments, fragrances, etc. can also be blended as appropriate. This cleaning agent immediately foams when it reacts with water, so it has particularly excellent cleaning power as a foam cleaning liquid.

The small container used in the present invention is one in which the cleaning liquid is stored in advance, and although not particularly limited, a bowl-shaped container made of plastic, metal, etc. is preferably used. An example of this will be explained with reference to the accompanying drawings. FIG. 1 shows a side view, and FIG. 2 shows a bottom view.
) is a bowl-shaped container, and (2) is a plurality of band-shaped protrusions provided on the outer surface of the container (1). FIGS. 3(A) and 3(B) are cross-sectional views showing the case where the container (1) is located at the upper part of the inlet of the drain pipe (3) and the upper part of the drain pipe mounting section (4), respectively. 1) connects the drain pipe (3) through the protrusion (2)
Or located above the entrance of the drain pipe installation section (4). Therefore, the cleaning liquid overflowing from the container (1), especially the foamy cleaning liquid (5), does not stagnate in the gap between the drain pipe (3) or the four drain pipe fittings (4), does not run out of foam, and flows smoothly into the drain pipe. It flows down while covering the inner wall surface of the pipe. The thickness of the protrusion (2) is
In order to prevent the cleaning liquid from running out of bubbles, it is usually 0.05-1c+n, preferably 0.01-0.5
cm is selected.

FIG. 4 is a cross-sectional view when the container (1) is located around the entrance of the drain pipe (3); in this case, the container (1)
There is a space (6) through which the drain pipe (3) passes approximately in the center of the
). Further, the container (1) may be installed in the drain pipe via a spacer (7) as shown in FIG. 5 instead of the protrusion (2).

Note that if the container is made of a transparent material, the flow of the foaming liquid to the drain port can be observed.

The cleaning liquid mentioned above can be used, but when using a foaming cleaning liquid, fill the container (1) with the cleaning agent in advance, and then gradually add water or warm water, so that it foams immediately. The foaming liquid overflows from the top of the container (1). If the moisture content decreases, fill with cleaning agent and water or warm water and repeat the same operation.

According to the cleaning method of the present invention, the cleaning liquid covers the inner wall surface of the drain pipe and flows down without fail, and sufficiently contacts the slime adhering to the inner wall surface of the pipe, so that the cleaning effect is extremely excellent. It also has a large effect on cleaning agents.

Next, the present invention will be explained in more detail with reference to Examples.
The present invention is not limited to the following examples unless the essential parts thereof are exceeded.

Example 1 30.0 parts by weight of sodium percarbonate, 4 parts by weight of sodium bicarbonate
3.8 parts by weight, 20.0 parts by weight of sulfamic acid, 5.0 parts by weight of lauryl sulfate), 0.2 parts by weight of powdered fragrance (Takasago Kagaku, HH735ε+), and 0.2 parts by weight of powdered silicic acid (Mizusawa Chemical, Jiruton R- 2) 1.0 parts by weight were mixed in a type 2 blender to obtain a homogeneous mixture. This 60g was placed in a plastic bowl-shaped container with an internal capacity of 200ml and a maximum diameter of 90mm, equipped with a band-like protrusion with a thickness of 3mm as shown in Figure 2, and this container was placed in a kitchen drain pipe with an inner diameter of 45mm. After installing it at the entrance, 200ml of 80"C boiling water was slowly poured into the container (for about 30 seconds). Bubbles were immediately generated in the container, and the foaming liquid overflowed from the -L part of the container, causing the drain pipe to drain. It spread to the bottom of the sink in the room and flowed down the inner wall of the drain pipe.After 10 minutes, the drain pipe was washed with water, and the inner surface of the drain pipe, which had been dark brown, was now shiny, showing a remarkable cleaning effect. .

[Brief explanation of drawings]

Fig. 1 is a side view showing an example of a small container used in the present invention, Fig. 2 is a bottom view, and Figs. FIG. 3 is a sectional view of main parts showing an implementation state. (1) Container, (2) Band-shaped protrusion, (3)
... Drain pipe, (5) ... Foamy cleaning liquid Applicant Johnson Co., Ltd. No. 30 (a) (b) Figure 4

Claims (1)

[Claims] 1) A small container located above or around the entrance of the drain pipe is filled with a cleaning liquid, and while the cleaning liquid overflows from the small container, it flows down the inner wall surface of the drain pipe for cleaning. A distinctive method for cleaning drain pipes. 2. As the cleaning liquid according to claim 1, after filling a small container with a granular cleaning agent mainly composed of inorganic peroxide, water or hot water is further added to react the cleaning agent with the water. A drain pipe cleaning method characterized by using a foamed liquid.