JP5945557B2 - Sealing water additive - Google Patents

Description

  The present invention relates to an additive for stabilizing the sealing water of a water-sealed drain trap attached to a drain outlet, piping, or the like, and a sealed water stabilization method using the additive.

  2. Description of the Related Art Conventionally, various drainage devices that generate drainage by using a bathtub, bathroom, washstand, sink, and the like have been attached with a drainage device that discharges the drainage generated by use to the sewage side such as an underfloor pipe. These drainage devices are generally provided with a water-sealed drain trap having a function of preventing odors from the sewage side, pests and small animals from entering the indoor side. This water-sealed drain trap is provided with a portion of water drainage in the drainage channel where water is collected, and prevents odors, pests and small animals from the sewage side from entering the room. Examples of such water-sealed drain traps include those described below. For example, in the wash basin 800 of FIG. 4A, the pipe 816 directly under the drainage suction port of the sink 814 that receives water from the outlet of the water tap 812 is formed in an S shape, and a water seal portion is provided to provide a water seal 818. An S-trap type water-sealed drain trap is used. Here, if a sealed water evaporation inhibitor is applied, an evaporation suppression film 822 is formed. The pipe 820 that has passed this S-trap type water-sealed drain trap extends vertically downward. FIG. 4B shows a drainage system 840 that uses a P-trap water-sealed drain trap. In the pipe 844 bent in such a manner that the P-shaped side is tilted sideways, the receiving portion 842 that receives drainage such as a funnel is similarly provided with a water-sealed portion at a downwardly bent portion, and the water seal 846 Is accumulated. Here, if a sealed water evaporation inhibitor is applied, the evaporation suppression film 850 is formed. Thereby, the odor etc. which come from the tip 848 of a drain pipe can be interrupted | blocked. FIG. 4C shows a drainage system 860 that uses a U-trap type water-sealed drain trap in which piping is bent in a U-shape to store the sealed water. Here, if a sealed water evaporation inhibitor is applied, an evaporation suppression film 868 is formed. Here, similarly, the U-shaped pipe forms a water-sealed portion, and the left side 862 and the right side 866 of the pipe are blocked by the accumulated water 864 accumulated.

  Moreover, as shown in FIG.4 (d), it can be said that the flush toilet 880 is also a kind of water-sealed drain trap. Sealed water 884 is stored in the recess of the toilet 882, and the partition plate 886 blocks odors and the like from the drain pipe 890 ahead. Further, FIG. 4 (e) shows a water-sealed drain trap 900 used in a kitchen sink, a drain outlet such as a bathroom floor. A drain port is provided under the grid 902 for removing large dust and the like. Such a drain outlet is provided with a rising portion by allowing the water distribution pipe 910 to enter substantially the center position of the bottom portion of the bottomed cylindrical main body 906 having an open top. From above the rising portion, a hook-shaped or bell-shaped cap body 904 that is open downward is covered. The rising portion and the bottomed cylindrical main body 906 form a reservoir that can store the sealed water 908, and the side wall of the cap body 904 forms a sealed portion that blocks odors and the like. Here, if a sealed water evaporation inhibitor is applied, an evaporation suppression film 912 is formed. A disc-shaped eye plate (grid) 902 having a large number of openings is disposed on the cap body 904 in order to remove solid matter mixed in the drainage. Such a water-sealed drain trap 900 is generally referred to as a belt wrap or a one trap because the shape of the cap body 904 is bell-shaped (hanging-shaped) or bowl-shaped.

  As described above, in the water-sealed drain trap, water used as sealed water plays an important role in order to block odors and the like. In these water-sealed drain traps, a part of each drainage is stored in the water-sealed part and sealed, so there is no problem when draining frequently. When the amount of water is reduced, there is a possibility that the function of blocking odors or the like may not be provided due to natural evaporation of water as sealed water.

  For example, the action of a water-sealed drain trap of a flush toilet is shown in FIGS. In this flush toilet, once water is flowed, the water 102 that becomes the sealing water is collected in the water reservoir of the water-sealed drain trap 100 of the toilet body 10, and is partitioned by the partition plate 14. If the atmospheric pressure of the front part 12 and the atmospheric pressure of the drain pipe 16 on the sewage side are balanced and the pressure is substantially the same, the water surface 104 having the same height is formed with the partition plate 14 in between (FIG. 3A). ). Next, when a large amount of drainage flows through another drain pipe connected to the sewage side pipe, the drain pipe 16 side becomes lower than the atmospheric pressure (that is, negative pressure), the sealed water 102 is pulled to the sewage side, and the drain trap The seal water 102 flows down to the sewage side beyond the maximum bottom surface position 18 of the discharge port of the sewage side pipe (FIG. 3B). At this time, the lower end of the partition plate 14 is located at a position lower than the discharge port maximum bottom surface position 18, but when the negative pressure is large, the water surface 104 lower than the lower end of the partition plate 14 is formed in the water reservoir. There is. At this time, a so-called sealed water is broken, and the atmosphere of the front portion 12 of the toilet 10 suddenly flows from a small gap between the lower end of the partition plate 14 and the water surface 104 of the sealed water, and the sound of gurgling is heard. The pressure balance with the negative pressure on the sewage side will be taken rapidly. Accordingly, it is possible to prevent the sealed water 102 from flowing down to the sewage side by being greatly lowered from the lower end of the partition plate 14. Then, when the pressure of the sewage side pipe becomes almost atmospheric pressure, the sealed water that has not exceeded the discharge port maximum bottom surface position 18 of the sewage side pipe returns to the water reservoir again, so that it slightly differs from the lower end of the partition plate 14. The water surface 104 of the sealed water 102 is formed at a high position (FIG. 3C). However, since the sealed water 102 is vaporized with time, even if the water surface 104 is above the lower end of the partition plate 14 by the amount returned to the water reservoir, the water surface 104 gradually decreases, and the partition plate 14 It becomes lower than the lower end. As a result, the effect of preventing odor due to the sealed water is lost, and the odor flows to the front portion 12 side of the toilet 10 (water breakage seal). As described above, the sealing water may lose the effect of the sealing water more easily and sooner due to the two factors of the decrease due to the negative pressure and the decrease due to vaporization (evaporation).

  Further, the belt-wrap type or one-trap type water-sealed drain trap shown in FIG. 4 (e) has a small amount of water to be sealed and a large area of the opening. The outflow of the sealed water and the intense evaporation of the sealed water may make it impossible to serve as a trap in a short period of time in summer.

  For this reason, for example, the odor in the toilet bowl is forcibly removed into the drainage pipe by installing a deodorizing fan, and the height of the sealing surface in the toilet bowl is stabilized, or the odor in the drainage pipe flows back into the toilet bowl and leaks out. It has been proposed to prevent this (for example, Patent Document 1). Alternatively, a low tank is arranged above the back of the toilet body, the upper space of the low tank communicates with a drain pipe through a vent path, a vent valve is provided in the vent path, and a sealed surface that eliminates negative pressure in the drain pipe against the outside air A descent prevention flush toilet has been proposed (for example, Patent Document 2).

  On the other hand, if various drainage devices are not used for a long period of time, the sealing water may be reduced due to natural evaporation and may not have a function of blocking odors and the like. When there is a decrease in the amount of sealed water due to the negative pressure as described above, the decrease in the amount of sealed water is further accelerated, and the function of the sealed water may be lost in a shorter time.

Japanese Utility Model Publication No. 6-87483 Japanese Patent Application Laid-Open No. 2002-167834

  However, the device for eliminating negative pressure on the sewage side is complicated and costly, and it is necessary to replace drainage equipment such as flush toilets installed so far. I have not been able to propose a solution. And no solution can be proposed for the loss of the sealing function due to the decrease in the sealing water due to the negative pressure and the decrease in the sealing water due to the natural evaporation.

  In view of the problems as described above, the present invention provides means for preventing and stabilizing a decrease in sealed water due to negative pressure even in an existing drainage device such as a flush toilet.

  The reduction of sealed water due to negative pressure on the sewage side depends on the level of negative pressure and the structure of the drain trap. The present inventors have intensively studied these, succeeded in grasping the characteristics required for sealing water, and were able to complete the present invention. That is, at least the main component of the sealed water is water, and its properties are smooth and low in viscosity, and as a whole, it is not breathable. Therefore, if the negative pressure on the sewage side raises the water surface on the sewage side immediately, and the degree of negative pressure is large and the period is long, it will exceed the maximum bottom position of the discharge port of the sewage side piping that constitutes the trap and It flows down. As a result, the amount of the sealed water stored is significantly reduced.

  Since the sealed water can perform its function due to lack of air permeability, it cannot be changed. On the other hand, changing the structure of the drain trap so as to resist the water surface being pulled up immediately cannot solve the above-mentioned problems. Therefore, the above-mentioned problem is solved by improving the function of the sealing water while maintaining the necessary properties of the sealing water. For example, it is conceivable to increase the resistance to the lifting action caused by the negative pressure of the stored seal water (for example, increase in viscosity, decrease in mobility, etc.). More specifically, examples include thickening and solidification (including solidification). Therefore, if a low mobility agent that increases the viscosity of the sealed water or decreases the mobility is added to the sealed water, loss of the sealed water can be prevented (or the sealed water can be stabilized). Or what was made high viscosity or low mobility can also be thrown in so that it may replace the existing sealing water.

  As described above, the sealing water can be stabilized against the negative pressure, but a high viscosity or a decrease in mobility may cause clogging of the drain pipe or the like. That is, when drainage is passed through a drain trap provided with stabilized sealed water, there is a risk that the drainage will not flow smoothly. And in order for a drain trap to function continuously, it is preferable to replace the sealing water until then with the drained water newly flown in this way.

  In other words, the sealing water can be stabilized by increasing the viscosity of the sealing water or by reducing the mobility, and if there is a measure to prevent clogging, the stabilization of the sealing water is more preferable. .

  For example, in order to withstand negative pressure and maintain sealed water, additives that increase the viscosity of the sealed water or make it less mobile when there is no plan to drain the drainage trap (for example, when there is no long-term absence) A is put into the sealing water to stabilize the sealing water. In this way, when the sewage side piping is shared as in an apartment house, the sealed water is stabilized even if a negative pressure is generated, so that the sealed water can be effectively maintained.

  In addition, when returning from a long-term absence and flowing the drainage into the drain trap, the drainage may not flow smoothly with this stabilized sealed water. In such a case, the additive B is introduced into the sealed water that has been made highly viscous or lowered in mobility by the additive A, so that the viscosity is lowered or increased in mobility. If it does in this way, the mobility of sealing water will become high and can use a drain trap as usual. In this way, when absent, it can counter the decrease in the sealing water due to the negative pressure described above, and does not interfere with normal use during residence.

  As described above, the sealed water in the drain trap could be stabilized against negative pressure, but it is preferable to further prevent a decrease due to vaporization of the sealed water. For this purpose, a seal water evaporation inhibitor (for example, Japanese Patent No. 4390831) can be used in combination. That is, when the seal water is absent for a long period of time, the additive A that makes the seal water highly viscous or low in mobility can be added to the seal water, and before or after that, the seal water evaporation inhibitor can be added. Since a certain amount of time (water absorption or expansion time) is required to stabilize the sealed water with the additive A, an evaporation suppression film is formed on the surface before and / or during the stabilization. Can do. In this way, not only a dynamic factor of negative pressure but also a static factor of vaporization (evaporation) can be prevented.

  Further, such a sealing water evaporation inhibitor may be mixed in the additive A or a function of the sealing water evaporation inhibitor may be added. If it does in this way, reduction by evaporation of a sealing water, etc. can be prevented by one injection. Additive A changes the properties of the sealed water (for example, viscosity, mobility, fluidity, etc.), but the effect of suppressing evaporation is not always expected. Therefore, for example, an additive (hereinafter referred to as “evaporation inhibitor”) that has the effect of covering the surface (water surface) of the sealed water and forming a non-evaporable (or hardly evaporable) thin film (layer) is further added to the additive A Alternatively, the additive A can have such a function.

  As such an evaporation inhibitor, the vapor pressure is at least lower than that of water near atmospheric temperature under atmospheric pressure, and the density thereof is lower than that of the sealed water so that it floats on the surface (water surface) of the sealed water. And those that are difficult to dissolve in the sealed water. For example, oil-based components such as liquid paraffin. In addition, for example, when the low mobility agent of the additive A is solid (which may include a solid state), such an evaporation inhibitor may be used which is applied to the surface (attached). it can. When the density of the low mobility agent of Additive A is higher than that of water, it will once accumulate at the bottom of the sealed water when it is introduced from the drain port, but the evaporation inhibitor is also added to the bottom of the sealed water at that time. Then, it is separated from the additive A and floats on the surface (water surface) of the sealed water. As a result, even an evaporation inhibitor having a low density, which is normally difficult to move to the sewage side, can be easily moved to the sewage side, and an evaporation suppression film can be effectively formed on the surface.

  Here, the sealed water may be a case where the water is not ordinary water. For example, it may be an organic substance such as alcohol or a mixture of an organic substance and water. In such a case, the sealed water may be replaced with another liquid for various reasons and stored in a drain trap, and then stabilization with the additive A or the like as described above may be performed. Alternatively, it creates a temporary mixed state (or dispersed state) with a liquid equivalent to or higher in density than the liquid corresponding to the sealed water (liquid is preferable, but it may be solid), and the separation effect due to buoyancy is reduced. The evaporation inhibitor can be moved to the sewage side by dispersing and moving in the sealed water (the component is water, a water-based component, or a sealed water equivalent component). In this case, a component (also referred to as an oil-based component) that forms an evaporation suppression film on the surface of the liquid can be used so as not to be dissolved or dispersed in the liquid corresponding to the sealed water. Then, such an oil-based component is at least temporarily combined with a weight component having a density equal to or higher than that of the liquid so that the oil-based component can be dispersed in the liquid, and the oil-based component is moved to the sewage side. It is preferable to move.

  More specifically, the present invention as described above includes the following.

(1) In a water-sealed drain trap provided in the middle of the flow of drainage, it is a low mobility agent that can be poured into the stored water, and the drainage by contacting with the sealed water A low mobility agent capable of reducing the mobility of the sealed water with respect to a change in air pressure before and / or after the water-sealed drain trap along the flow direction of the water. Here, the drainage flow may be, for example, a drainage flow that flows in a pipe. More specifically, water (drainage) that flows from a drainage port passes through this drainage trap to the sewage side. It can mean a flowing flow. The water-sealed drain trap here may include any type of drain trap, trap, etc., regardless of the configuration, structure, and other differences, as long as the functions thereof are the same. With respect to the change in atmospheric pressure, it may include the meaning of resisting (including the meaning of being able to withstand or resisting) the change in atmospheric pressure, and against the negative pressure [or positive pressure] (or It may mean “to compete”.

(2) The low mobility agent according to (1) above, comprising a gelling agent.

(3) The low mobility agent according to (2) above, wherein the gelling agent contains a water-absorbing polymer.

(4) The water-absorbing polymer is a single amount that becomes water-soluble by hydrolysis with polysaccharides (I-1) and / or monosaccharides (I-2), such as starch or cellulose, water-soluble monomers, and / or hydrolysis. The above water-containing resin obtained by polymerizing as an essential component one or more monomers (b) selected from the body and a cross-linking agent (c), and optionally performing hydrolysis. The low mobility agent according to (3).

(5) The low mobility agent according to any one of (1) to (4) above, comprising a water-insoluble substance having a specific gravity of less than 1 and having a vapor pressure lower than that of water. .

(6) In the water-sealed drain trap, the low mobility agent according to any one of (1) to (5) above is introduced, and the high mobility that can be introduced into the low-mobility sealed water High mobility, which is a mobility agent that can increase the mobility of the low-mobility sealed water by contacting the low-mobility sealed water Agent.

(7) The high mobility agent according to (6) above, comprising an electrolyte.

(8) The high mobility agent according to (7) above, wherein the electrolyte contains at least one selected from an ionic inorganic salt, an inorganic base, and an inorganic acid.

(9) The high mobility agent according to (7) above, wherein the electrolyte contains at least one selected from ionic organic salts, organic acids, and organic bases.

(10) A system for functioning sealing water of a water-sealed drain trap, and a low mobility agent that is poured into the sealed water to reduce mobility and low mobility by the low mobility agent A water sealing functionalization system comprising a high mobility agent that increases the mobility by contacting the sealed water.

(11) The water sealing functionalization system according to (10), wherein the low mobility agent includes a gelling agent.

(12) The water sealing functional system according to (11), wherein the gelling agent includes a water-absorbing polymer.

(13) The water-absorbing polymer is a single amount that becomes water-soluble by hydrolysis with polysaccharides (I-1) and / or monosaccharides (I-2) such as starch or cellulose, water-soluble monomers, and / or hydrolysis. The above water-containing resin obtained by polymerizing as an essential component one or more monomers (b) selected from the body and a cross-linking agent (c), and optionally performing hydrolysis. (12) The sealed water functionalization system according to (12).

(14) The low mobility agent further includes a water-insoluble substance having a specific gravity of less than 1 and having a vapor pressure lower than the vapor pressure of water. Sealing functionalization system in any one.

(15) The sealed water functionalization system according to any one of (10) to (14), wherein the high mobility agent includes an electrolyte.

(16) The water sealing functional system according to (15), wherein the electrolyte includes at least one selected from an ionic inorganic salt, an inorganic base, and an inorganic acid.

(17) The water sealing functionalization system according to (15), wherein the electrolyte includes at least one selected from ionic organic salts, organic acids, and organic bases.

(18) A method for reducing the mobility of a water-sealed drain trap capable of draining from the drain port side to the sewage side, wherein a low mobility agent is added to the sealed water. A method for reducing mobility, comprising a step of inputting from the side.

(19) Further, the low sealing water according to (18), further including a step of adding a high mobility agent to the drain trap provided with the sealing water reduced in mobility by the low mobility agent. Mobility method.

(20) The method according to (18) or (19), including a step of adding a sealant evaporation inhibitor immediately before, simultaneously with, or immediately after the step of adding the low mobility agent from the drain outlet side. A method for reducing the mobility of sealed water.

(21) In a water-sealed drain trap, a sealed water evaporation inhibitor containing a water-insoluble substance having a vapor density lower than the vapor pressure of water and having a specific gravity of less than 1 on solid particles having a density of 0.9 or more The water-insoluble substance is included in the solid particles so that the water-insoluble substance is dispersed in the sealed water when the solid particles come into contact with the sealed water stored in the sealing trap. Sealing water evaporation inhibitor. Here, the density of the resin is generally 1 or more, and the resin disclosed in this specification can be used as the solid particles. In this case, to include the water-insoluble substance, for example, any method of applying around the resin particles or attaching to the surface such as a dust can be used. Further, the resin particles may be made porous and incorporated into the particles. Therefore, a viscous fluid such as liquid paraffin or a water-insoluble substance in a liquid state is preferable.

  Here, the water-insoluble component may include an oil-based component. The oil component may contain at least one or more of oils and fats, liquid paraffins, alcohols, ketones, aldehydes, esters, silicones, and hydrocarbons. In particular, oils and fats, liquid paraffins, and silicones are preferable. Here, liquid paraffin is a colorless liquid and non-volatile at room temperature, but has a slight odor. Insoluble in water. It is a Class 3 organic solvent and is flammable. It is a chemically stable substance and does not undergo oxidation under normal conditions. It is easy to emulsify and has excellent spread and permeability. Purity can be measured by the absorbance of ultraviolet light. Liquid paraffin is, for example, nujol, mineral spirit, mineral turpentine, white spirit, white oil, white mineral oil, petroleum spirit, mineral thinner, petrolium spirit, water paraffin, mineral oil, mineral oil white, medical paraffin ( medical paraffin), paraffin fax, saxol, USP mineral oil, adepine oil, Albolene, glymol, and the like.

  Silicone is a high molecular organic compound (polymer) having a siloxane bond as a skeleton. Those having a relatively low molecular weight are also called polysiloxanes. Structurally, it is a molecule in which the carbon of the main chain of the ketone is replaced by silicon, and is originally a silica ketone, but is abbreviated as silicone.

  The boiling point of the water-insoluble component is preferably not less than the boiling point of water. In addition, the water insolubility may be anything that does not substantially dissolve in water. For example, even if it dissolves to some extent, the insoluble component remains without being dissolved, and it is sufficient that the insoluble part can be phase-separated after mixing and emulsification. The solubility in water is more preferably 1% or less at room temperature. A low vapor pressure can mean that it is difficult to evaporate. For example, it is preferable that the vapor pressure is 20 mmHg or less at room temperature. More preferably, it is 10 mmHg or less. And it is still more preferable if it is 1 mmHg or less. In consideration of spreading on the surface, the water-insoluble component is more preferably a liquid or a fluid. The specific gravity of the water-insoluble component is preferably smaller than water, for example, less than 1 and preferably 0.999 or less. More preferably, it is 0.95 or less. From the viewpoint of quick phase separation, 0.9 or less is even more preferable. However, when the specific gravity is too small and the fluid has high water repellency, phase separation may occur rapidly, and dispersion may not be sufficiently performed. Such a water-insoluble component may be physically and / or chemically generated by mixing two or more compounds. Moreover, the thing with a comparatively low viscosity which is easy to spread the layer on the surface of water is preferable. Further, it is preferable that the covering property is high so that the surface of water is not exposed, or the water or water vapor is not easily exposed to the surface by diffusing in the layer.

  The water-insoluble component may contain a surfactant. If necessary, the water-insoluble component may further contain a dye, a fragrance, an essential oil, a pigment, a pigment dispersant, an antiseptic, an antifungal agent, a disinfectant, a sequestering agent, Sticking agent, oil / water separation accelerator, insect repellent, pest repellent, insecticide, bleach, alkali, acid, inorganic salt, organic salt, solvent, plant extract, deodorant, deodorant, protein One or more kinds of enzymes such as degrading and fat-degrading enzymes, oxidizing agents, reducing agents, abrasives, polymeric water-absorbing agents, bacteria and yeast activators can be included.

  Here, the solid particles may include solid particles, and may include particles (including granules) that are substantially solid. The solid particles are preferably those that settle into the sealed water at least immediately after the solid particles are charged. It is preferable that the water-insoluble substance contained during settling can be released in the surrounding sealed water environment and dispersed in the sealed water environment. For example, an apparent density of 0.9 or more, 0.95 or more, or 1 or more is considered preferable. As long as the apparent density is porous, for example, it may be a density handled as having no pores. On the other hand, when the sealed water can easily enter the hole, the density obtained by the Archimedes method can be used.

  In general, the size of fine solid particles is defined by a spherical approximation. The solid particles (including solid particles) can contain the above-mentioned water-insoluble components by adhesion, impregnation or the like. Such solid particles may function as a weight for allowing the water-insoluble component to settle in the sealed water. The solid particles may be dissolved in the sealing water after a predetermined time has elapsed after being put into the sealing water. The predetermined time may be a time sufficient to allow the water-insoluble component to be adhered or impregnated to settle or disperse in the sealed water. For example, it can be 1 second or longer, 10 seconds or longer, 30 seconds or longer, etc., but it may be appropriately selected depending on the type of water-insoluble component to be adhered or impregnated and the method of adhesion or impregnation. Such solid particles may not dissolve in the sealing water. In this case, it is preferable that it can easily flow out to the sewage side together with a large amount of drainage and does not clog the piping. For example, those having a sufficiently small particle diameter with respect to the diameter of the pipe or the like are preferable. Further, if the specific gravity is too large, it tends to accumulate at the bottom of the concave portion of the pipe. For example, the particle size is preferably 5 mm or less, 2 mm or less, 1 mm or less, 0.5 mm or less, 0.5 mm or less, 0.1 mm or less. The specific gravity is preferably 10 or less, 8 or less, 5 or less, 3 or less, 2.5 or less. The combination of these particle diameters and specific gravity can be appropriately selected according to the properties, structure and size of the piping. Here, examples of solid particles include diatomaceous earth, silica, calcium carbonate, kaolin, and feldspar powder. Since these do not dissolve in water, the particle size is preferably 1 mm or less, for example. Moreover, the water-absorbing polymer mentioned above can be mentioned as an example of solid particles. This water-absorbing polymer can discharge moisture and become a fine solid component by the low mobility agent described above. Examples of solid particles include water-soluble salts, such as salt, sodium hydrogen carbonate, sodium carbonate, sodium citrate, sodium sulfate, etc., solidified to a certain size as an anhydride (eg, green compact) Etc.). In this case, the water-insoluble component can be released into the sealed water in the process of wrapping the above-described water-insoluble component, settling sufficiently in the sealed water immediately after charging the sealed water, and dissolving in the sealed water. The released water-insoluble component can rise or disperse in the sealed water by buoyancy or the like, and can form films on both the drainage side and the sewage side.

  In the solid particles as described above, the oil component contained in the water-insoluble component is 1 ml / 100 g or more, 5 ml / 100 g or more, 10 ml / 100 g or more in oil absorption based on JIS K-5101-13-2, or It can be 20 ml / 100 g or more. Or the solid particle which can make the oil absorption amount of the above-mentioned oil-type component 1 ml / 100g or more, 5 ml / 100g or more, 10 ml / 100g or more, or 20 ml / 100g or more is preferable. Examples of such oil components include liquid paraffin and (boiled) linseed oil.

  According to the present invention, an additive for stabilizing the sealing water of a water-sealed drain trap attached to a drain outlet, piping, etc. and a sealing water stabilization method using the additive do not require any special equipment. The loss of the sealing water due to the negative pressure on the sewage side and the loss of the sealing water due to evaporation can be effectively prevented or suppressed. Moreover, when the drainage device is reused, the drainage trap is not clogged, so that it can be used with confidence.

It is a schematic diagram illustrating the method of applying the additive of the Example of this invention to a water-sealed drain trap. It is a schematic diagram illustrating the evaluation apparatus and the evaluation method of the Example of this invention. It is a schematic diagram illustrating the decrease by the negative pressure of the sealing water of the drain trap in the conventional toilet. In the conventional water-sealed drain trap, it is a schematic diagram of a drainage system using a seal water evaporation inhibitor.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the embodiments are described for understanding the present invention and do not limit the scope of the present invention.

  FIG. 1 illustrates a method of applying the additive of the embodiment of the present invention to a water-sealed drain trap. In this method, the conventional flush toilet body 10 shown in FIG. 3 can be used. In such a toilet, once the water is flowed, water 102 that becomes sealed water is collected in the water reservoir of the water-sealed drain trap 100 of the toilet body 10, and is partitioned by the partition plate 14. If the pressure of the front portion 12 of the water and the pressure of the drain pipe 16 on the sewage side are balanced and the pressure is substantially the same, the water surface 104 having the same height is formed with the partition plate 14 in between (FIG. 3A). ). At this time, the sealed water is ordinary water, and if the drain pipe 16 side becomes negative pressure, the sealed water 102 flows out to the drain pipe 16 side as shown in FIG. Therefore, after the sealing water is accumulated in the drain trap 100 (FIG. 3A), the sealing water additive A (low mobility agent) is introduced from the drain port side (front portion 12 side) (FIG. 3). 1 (a)). This sealing water additive A further contains an evaporation preventing component. Here, “mixing” means that when the water-sealing additive A is solid, it adheres to the surroundings, and if it is porous, it is included in the pores, or due to physical or chemical changes such as dissolution. Impregnation may be included. Further, the additive A and the evaporation inhibitor (which may include a substance having an evaporation suppressing function) are put in a container and mixed by vigorously shaking. At this time, the sealing water additive A may be in a liquid, liquid, paste, slurry or the like state. Usually, the sealing water additive A is in the form of a paste or powder and has a higher density than water and settles to the bottom of the sealed water 102 (if it settles to a certain depth, then it floats, dissolves, May be dispersed). Then, the evaporation inhibitor component mixed in the sealing water additive A is separated from the sealing water additive A and floats on the surface of the sealing water 102 (both on the drain outlet side and the sewage side). (FIG. 1B). As a result, evaporation of water (or liquid corresponding to sealed water) from the surface of the sealed water (or liquid corresponding to sealed water) that has been gelled, solidified, reduced mobility, etc. It can be effectively suppressed. Next, the sealing water additive A absorbs the sealing water (or the corresponding liquid) and expands. Here, for the sake of simplicity, a diagram is shown in which the particles expand, but in reality, the interface between the particles is not always clearly shown, and the interface disappears during the expansion process, and the entire network is formed. Can have the structure of If it does in this way, the additive A for sealing water will expand | swell, if it absorbs a water | moisture content, in other words, will change to the form of A1. Thus, the entire sealing water 102 is replaced by the sealing water additive A1 that has absorbed water (actually, the sealing water is absorbed and incorporated in the network structure), and the negative pressure of the drain pipe 16 is reduced. However, it can endure enough and does not flow out (FIG. 1 (c)). Even when the additive A is not mixed with an evaporation inhibitor (including a substance having an evaporation suppressing function), the sealed water can be stabilized (or reduced in mobility), and negative pressure can be achieved. It is possible to effectively prevent the sealed water (or the corresponding liquid) from flowing out, and to maintain the water sealing function of the drain trap longer. In particular, in winter when the evaporation is not so intense, a sufficient effect can be obtained even with the additive A that does not contain the evaporation inhibitor.

  Next, when it is necessary to use the toilet body 10, the sealing water additive B is introduced from the drain outlet side (front portion 12 side) in the same manner as the agent A. If it does in this way, the additive A1 for sealing water which absorbed the water of the sealing water 102 (a corresponding liquid is included. The following is same) discharges a water | moisture content, and a particle | grain shrinks. Along with this, the sealed water 102 in the drain trap is restored and flows easily as before (high mobility, FIG. 1 (d)).

  In this way, by freely changing the characteristics of the sealing water 102, it is possible to withstand negative pressure on the drain pipe side and effectively suppress a decrease due to evaporation. Hereinafter, specific additives A and B for sealing water will be described.

  As an example of the additive A for sealing water as described above, a low mobility agent may be mentioned. This may reduce the mobility of the sealed water. Examples of the low mobility agent include various materials such as a gelling agent, a thickening agent, a thickening stabilizer, a swelling agent, a coagulant, and an aggregating agent (hereinafter referred to as “low mobility active ingredient”). ) To at least one material. The low mobility agent may contain materials other than these. For example, it may include a solid or liquid that performs a predetermined function such as a cleaning agent, a pigment, or a preservative. The low mobility agent preferably contains at least one of the low mobility active ingredients in an amount that can sufficiently reduce the mobility of the sealed water. This sufficient amount can be selected as appropriate in relation to the amount of sealed water. Further, the material contained in the low mobility agent is preferably one that does not clog the drain trap when the drain trap is used again. For example, it is preferable to avoid solid substances that are substantially insoluble in water (for example, wood, metal, etc.) that cause clogging of drain traps, piping, and the like.

  The gelling agent may contain a chemical substance that gels and solidifies the liquid containing the sealing water. For example, a high-concentration micelle of a surfactant or a polymer gel that is a polymer solution may be included. More specifically, concentrated solutions of soap made with hot water, polysaccharides such as gelatin, agar, carrageenan and pectin can be mentioned as examples. Usually, the amount of gelling agent used to gel food is about 1%, and the liquid component can be hardened with a very small addition amount. Further, an absorbent polymer, a highly water-absorbent resin, a polymer absorbent body, or the like, which is a polymer product designed to have a high water retention performance that can be called a gelling agent, can be used. This superabsorbent polymer can absorb and retain water from several hundred times to about 1,000 times its own weight. For example, a polymer of acrylic acid is very hydrophilic because it has a large number of carboxyl groups, and is crosslinked to a network structure to form a gel with high water absorption when in the form of a sodium salt, and exhibits excellent properties. For example, sodium polyacrylate can be illustrated.

  On the other hand, for example, in an absorptive polymer, a highly water-absorbing resin, or a polymer absorber, the water-absorbing property is lowered in the presence of an electrolyte. Conversely, when an electrolyte (for example, an inorganic acid, an inorganic salt, an organic acid, an organic acid salt, etc.) is added to the absorbent polymer or the like in a water-absorbed state, the absorbed water is discharged, and the gelled one is high. Be fluid. This electrolyte and the like will be described later in relation to the high mobility agent.

(Water absorbent resin particles)
In the present invention, examples of the water absorbent resin particles include the following (A) to (F). A swelling rate of 24 hours or less with a water-absorbent resin, a water absorption of 100 to 1,000 g / g of ion-exchanged water, and a non-pressurized absorption rate of 0.9% by weight of physiological saline is 80 g / g or less. Those are preferred.

  (A) One or more kinds selected from polysaccharides (a-1) and / or monosaccharides (a-2) such as starch or cellulose and water-soluble monomers and / or monomers that become water-soluble by hydrolysis As an example, a water-absorbing resin obtained by polymerizing the monomer (ii) and the crosslinking agent (iii) as essential components and hydrolyzing as necessary can be given. Here, examples of (I-1) include sucrose, cellulose, CMC, starch and the like (I-2) includes pentaerythritol, diglycerin, sorbitol, xylitol, mannitol, dipentaerythritol, glucose, fructose, etc. Is mentioned.

  Examples of (b) include a radical polymerizable water-soluble monomer having a carboxyl group, a sulfonic acid group, and a phosphoric acid group and salts thereof, and a hydroxyl group, an amide group, a tertiary amino group, and a quaternary ammonium base. Examples include radically polymerizable water-soluble monomers.

  Examples of the radically polymerizable water-soluble monomer having a carboxyl group include unsaturated mono- or poly (divalent to hexavalent) carboxylic acid [(meth) acrylic acid (referred to acrylic acid and / or methacrylic acid. The same applies hereinafter). Description), maleic acid, monoalkyl maleate (1-9 carbon atoms) ester, fumaric acid, monoalkyl fumarate (1-9 carbon atoms) ester, crotonic acid, sorbic acid, itaconic acid, monoalkyl itaconic acid (C1-C9) ester, itaconic acid glycol monoether, cinnamic acid, citraconic acid, citraconic acid monoalkyl (C1-C9) ester, etc.] and their anhydrides [maleic anhydride, etc.] It is done.

  Examples of the radically polymerizable water-soluble monomer having a sulfonic acid group include aliphatic or aromatic vinyl sulfonic acids (vinyl sulfonic acid, allyl sulfonic acid, vinyl toluene sulfonic acid, styrene sulfonic acid, etc.), 2-hydroxy- 3- (meth) acryloxypropylsulfonic acid, (meth) acrylic alkylsulfonic acid [sulfoethyl (meth) acrylate, sulfopropyl (meth) acrylic acid etc.], (meth) acrylamide alkylsulfonic acid [2-acrylamido-2- Methyl propane sulfonic acid, etc.].

  Examples of the radically polymerizable water-soluble monomer having a phosphoric acid group include (meth) acrylic acid hydroxyalkyl phosphate monoester [2-hydroxyethyl (meth) acryloyl phosphate, phenyl-2-acryloyloxyethyl phosphate, etc.] Etc.

  Salts of water-soluble monomers containing the above carboxyl group, sulfonic acid group, phosphoric acid group [for example, alkali metal salts (sodium salt, potassium salt etc.), alkaline earth metal salts (calcium salt, magnesium salt etc.), amine Salt or ammonium salt].

  Amide group-containing monomers [eg (meth) acrylamide etc.], tertiary amino group-containing monomers [eg dimethylaminoethyl (meth) acrylate, diethylaminoethyl (meth) acrylamide etc.], quaternary ammonium base-containing monomers [eg tertiary above Quaternized products of amino group-containing monomers (quaternized using a quaternizing agent such as methyl chloride, dimethyl sulfate, benzyl chloride, dimethyl carbonate), etc.], epoxy group-containing monomers [for example, glycidyl (meth) acrylate, etc. ] And other monomers [4-vinylpyridine, vinylimidazole, N-vinylpyrrolidone and the like] and the like.

  Two or more of these may be used in combination. Among these, preferred water-soluble monomers are radically polymerizable water-soluble monomers having a carboxyl group and salts thereof, more preferably unsaturated mono- or polycarboxylic acids and salts thereof, particularly preferably ( (Meth) acrylic acid and its salts.

  Examples of (c) include a crosslinking agent having two or more radically polymerizable unsaturated groups, a crosslinking agent having a radically polymerizable unsaturated group and a reactive functional group, and a crosslinking agent having two or more reactive functional groups. Etc.

  Specific examples of the compound having two or more radically polymerizable unsaturated groups include N, N′-methylenebis (meth) acrylamide, ethylene glycol di (meth) acrylate, polyethylene glycol di (meth) acrylate, propylene glycol di (meth). ) Acrylate, glycerin (di or tri) acrylate, trimethylolpropane triacrylate, triallylamine, triallyl cyanurate, triallyl isocyanurate, tetraallyloxyethane, pentaerythritol triallyl ether and the like.

  (I) A compound having at least one functional group capable of reacting with the functional group of (b) and having at least one radical polymerizable unsaturated group [for example, hydroxyethyl (meth) acrylate, N-methylol ( Meth) acrylamide, glycidyl (meth) acrylate, etc.].

  Specific examples of the compound having two or more functional groups capable of reacting with the functional group (b) or (b) include polyhydric alcohols (for example, ethylene glycol, diethylene glycol, glycerin, propylene glycol, trimethylolpropane, etc.), Examples include alkanolamines (for example, diethanolamine) and polyamines (for example, polyethyleneimine).

  Two or more kinds of these crosslinking agents may be used in combination. Among these, preferred are copolymerizable crosslinking agents having two or more radically polymerizable unsaturated groups, and more preferably N, N′-methylenebisacrylamide, ethylene glycol diacrylate, trimethylolpropane triacrylate, Tetraallyloxyethane, pentaerythritol triallyl ether, triallylamine.

  The ratio of (a), (b) and (c) and the method for producing the water absorbent resin are not particularly limited. Specific examples of the water-absorbing resin include those described in JP-A-52-25886, JP-B-53-46199, JP-B-53-46200, and JP-B-55-21041.

  (B) Polymers of (i) and (b) above (hydrolysates of starch-acrylonitrile graft copolymer, hydrolysates of cellulose-acrylonitrile graft copolymer, etc.) can be mentioned as examples. .

  (C) The cross-linked product of the above (I) (such as a cross-linked product of carboxymethyl cellulose) can be mentioned as an example.

  (D) Copolymers of (b) and (c) (partially hydrolyzed cross-linked polyacrylamide, cross-linked acrylic acid-acrylamide copolymer, cross-linked polysulfonate (cross-linked sulfone) Polystyrene, etc.), cross-linked polyacrylate / polysulfonate copolymer, saponified vinyl ester-unsaturated carboxylic acid copolymer (Japanese Patent Laid-Open Nos. 52-1489 and 52-27455) And the like), cross-linked polyacrylic acid (salt), cross-linked acrylic acid-acrylic ester copolymer, cross-linked isobutylene-maleic anhydride copolymer, cross-linked polyvinyl pyrrolidone, and Cross-linked carboxylic acid-modified polyvinyl alcohol) can be mentioned as an example.

  (E) The polymer (b) having self-crosslinking property (self-crosslinking polyacrylate, etc.) can be mentioned as an example.

  (F) As a natural product-derived water-absorbing resin, polyaspartic acid is obtained by enzymatic polymerization of aspartic acid ester. An example is a crosslinked polyglutamic acid obtained by treating a glutamic acid polymer produced by culturing Bacillus bacteria with γ-ray irradiation.

  Two or more water-absorbing resins exemplified above may be used in combination. Among these water-absorbing resins, preferred are (A) and (D), among those exemplified as cross-linked polyacrylamide copolymer, cross-linked polyacrylic acid (salt), cross-linked acrylic acid-acrylic acid. An ester copolymer and a crosslinked carboxylic acid-modified polyvinyl alcohol.

  There is no particular limitation on the type of salt and the degree of neutralization in the case of a water-absorbing resin in the form of a neutralized salt, but the type of salt is preferably an alkali metal salt, more preferably a sodium salt and a potassium salt, The degree of neutralization with respect to the acid group is preferably 50 to 90 mol%, more preferably 60 to 80 mol%.

  In the case of those exemplified as the above (A) and (D), the use amount of the crosslinking agent is preferably 0.001 to 5% by mass, more preferably based on the total mass of the water-soluble monomer and the crosslinking agent. Is 0.05 to 2% by mass, particularly preferably 0.1 to 1% by mass. When the amount of the cross-linking agent is less than 0.001% by mass, the water absorption / retention ability, which is an important function of the water-absorbent resin, is reduced, and the gel after water absorption tends to contain a lot of water-soluble components, and the remaining water-soluble simple substance. The mass is also increased. Furthermore, the drying property of the hydrogel polymer after polymerization is lowered, and the productivity may be inefficient. On the other hand, when it exceeds 5% by mass, the cross-linking becomes excessively strong, the water absorption / retention ability may be lowered, and the absorption rate may be lowered.

  In the production of the water-absorbent resin, the polymerization method is not particularly limited, and examples thereof include an aqueous solution polymerization method, reverse phase suspension polymerization method, spray polymerization method, photoinitiated polymerization method, and radiation polymerization method.

  A preferred polymerization method is a method of performing aqueous solution polymerization using a radical polymerization initiator. In this case, the type and amount of radical polymerization initiator and radical polymerization conditions are not particularly limited, and can be the same as usual. Various additives, chain transfer agents (for example, thiol compounds) and the like may be added to these polymerization systems as necessary.

  The water-containing gel-like polymer of the water-absorbent resin obtained by polymerization is dried, pulverized, and further, the surface vicinity of the absorbent particles obtained by adjusting the particle size if necessary, with an acid group such as a carboxyl group and / or its base A water-absorbing resin can also be obtained by surface cross-linking with a cross-linking agent having at least two functional groups capable of reacting.

  Such a surface-crosslinked water-absorbing resin is suitable for the present invention because it is excellent in absorption performance and absorption speed and has high gel strength not only under normal pressure but also under pressure.

  As a crosslinking agent used for surface crosslinking, a known crosslinking agent that has been conventionally used can be applied. Specific examples include polyglycidyl ether compounds having 2 to 10 epoxy groups in one molecule [ethylene glycol diglycidyl ether, glycerin-1,3-diglycidyl ether, glycerin triglycidyl ether, polyethylene glycol (degree of polymerization 2-100) diglycidyl ether, polyglycerol (degree of polymerization 2-100) polyglycidyl ether, etc.]; divalent to 20-valent polyol compounds [glycerin, ethylene glycol, polyethylene glycol (degree of polymerization 2-100), etc.]; 2 To 20-valent polyamine compounds (ethylenediamine, diethylenetriamine, etc.); polyamine resins having a molecular weight of 200 to 500,000 (polyamide polyamine epichlorohydrin resin, polyamine epichlorohydrin resin, etc.), alkylene carbonates Ito [ethylene carbonate, etc.], aziridine compounds, oxazoline compounds, polyimine compounds, and the like.

  Among these, polyglycidyl ether compounds, polyamine resins, and aziridine compounds are preferable because surface crosslinking can be performed at a relatively low temperature.

  The amount of the cross-linking agent in the surface cross-linking is not particularly limited because it can be variously changed depending on the type of cross-linking agent, cross-linking conditions, target performance, etc., but preferably 0.001 to 3 for the water-absorbent resin. It is mass%, More preferably, it is 0.01-2 mass%, Most preferably, it is 0.05-1 mass%. When the amount of the crosslinking agent is less than 0.001% by mass, there is no great difference in performance from the water-absorbing resin that does not perform surface crosslinking. On the other hand, if it exceeds 3% by mass, the absorption performance tends to decrease, which is not preferable.

  Further, drying and pulverization are as follows. In the case of aqueous solution polymerization, for example, the polymerized hydrogel is partially subdivided or noodled to some extent with a meat chopper or cutter type crusher, and if necessary, alkali metal salt hydroxide is added to neutralize the hydrogel, and then the transparent gel is permeated. It is performed by a method such as air drying or ventilation drying. Among these, air-permeable drying is preferable because efficient drying can be performed in a short time. On the other hand, the drying method of the hydrogel in the case of reverse phase suspension polymerization is carried out by solid-liquid separation of the polymerized hydrogel and the organic solvent by a method such as decantation, followed by drying under reduced pressure (degree of vacuum; about 100 to 50,000 Pa) In general, the aeration drying is performed. Examples of other drying methods for the water-containing gel in aqueous solution polymerization include a contact drying method in which the water-containing gel is compressed and stretched on a drum dryer described in Japanese Patent Publication No. 8-28216. Therefore, it is necessary to prepare a thin film of hydrogel on the drum or the like for drying. The drying temperature varies depending on the dryer to be used, the drying time, and the like, but is preferably 50 to 150 ° C, more preferably 80 to 130 ° C. The drying time also varies depending on the model of the dryer used, the drying temperature, and the like, but is preferably 5 to 300 minutes, more preferably 5 to 120 minutes. The dried product of the crosslinked polymer thus obtained is pulverized and powdered as necessary. The pulverization method may be a normal method, and can be performed by, for example, an impact pulverizer (pin mill, cutter mill, skiller mill, ACM pulverizer, etc.) or air pulverization (jet pulverizer, etc.). If necessary, the dried powder can be collected by using a sieving machine (vibrating sieving machine, centrifugal sieving machine, etc.) equipped with a desired screen if necessary.

  The average particle size of the water absorbent resin particles (X) thus obtained is preferably 100 to 850 μm, more preferably 100 to 700 μm. When the average particle size is 100 μm or more, the water-absorbent resin particles are unlikely to leak from the water-swellable water-stopping material before water absorption, and the water-absorbing resin particles are less likely to become so-called “Mamako” when water is absorbed. If it is 850 μm or less, the swelling speed is sufficiently fast. As described above, the average particle size can be controlled by grinding and sieving. In the case of reverse phase suspension polymerization, it can also be controlled by polymerization conditions. The average particle diameter means the mass average particle diameter. The mass average particle diameter is the logarithmic probability of the particle size distribution of the cross-linked polymer obtained by the usual sieving method, the horizontal axis is the particle diameter, and the vertical axis is the mass-based content. Plot on paper and measure by measuring the particle size at 50% of the total mass.

  The swelling speed of the water absorbent resin particles (X) is preferably 24 hours or less. More preferably, it is 5 seconds to 20 minutes, and particularly preferably 5 seconds to 10 minutes. If the swelling speed is 5 seconds or more and 10 minutes or less, the sealing water can be quickly stopped from being sucked.

[Measurement method of swelling speed]
A sample obtained by sieving and classifying the water absorbent resin particles (X) through 30 mesh and the remaining 140 mesh is used as a measurement sample. In a 100 ml beaker, 50 ml of pure water (25 ° C.) is added and stirred with a magnetic stirrer at 600 rpm. Next, 2.00 g of sample is placed in the vortex. After loading, as the sample swells with water, the vortex becomes weak and disappears, and the liquid level becomes horizontal. The time required for the liquid level to become horizontal after the addition (seconds) can be used as the swelling speed.

  The improvement of the swelling speed can be achieved by increasing the surface area of the water-absorbent resin particles (for example, an indefinite shape rather than a true sphere) or by adding silica powder or the like so that the water can approach the water-absorbent resin more quickly. Is possible.

  The amount of water absorption is preferably 100 to 1,000 g / g, more preferably 200 to 800 g / g. When the amount of water absorption is 200 g / g or more, a small amount of addition is required for the gelation of the sealed water, which is economical and efficient. If it is 1,000 g / g or more, the strength of the gel after water absorption is insufficient, and the loss of sealed water due to negative pressure on the sewage side (also referred to as sealed water sucking action or induction siphon action) can be sufficiently prevented. I can't. The amount of water absorption can be controlled by various production conditions for the above water-absorbent resin.

  The water-absorbent resin is a crosslinked polymer of a water-soluble monomer, and the amount of residual water-soluble monomer (for example, acrylic acid) in the water-absorbent resin is preferably 500 ppm or less, more preferably 200 ppm or less. Yes, particularly preferably 100 ppm or less. If it is 500 ppm or less, even a person sensitive to skin irritation hardly touches the skin when in contact with the water-absorbent resin, and the burden on the environment is low. As a method for reducing the amount of residual water-soluble monomer (for example, acrylic acid), a method of adding a reducing substance after polymerization is highly effective, but it can also be achieved by polymerization conditions, for example, a method for increasing the molecular weight of the water-absorbing resin described above. Can do. Examples of the reducing substance include sodium sulfite, ascorbic acid, amines (ammonia, monoethanolamine, etc.) and the like. The amount used is preferably 0.001 to 5 mass% with respect to the water absorbent resin.

  In addition to the above physical properties, the water absorbent resin further has a moisture absorption blocking resistance of preferably 9% or less, more preferably 7% or less. Less clumping. When the mass is small, a sufficient swelling speed and water absorption can be exhibited. A method for measuring moisture absorption blocking resistance will be described later.

  Hygroscopic blocking resistance can be improved by blending particle surface cross-linking and an anti-blocking agent. Examples of the anti-blocking agent include inorganic anti-blocking agents such as silica, talc, titanium oxide and calcium carbonate, and organic anti-blocking agents such as polyurethane resins having a particle size of 100 μm or less, epoxy resins and poly (meth) acrylate resins. Etc. Except as described above, the average particle size is preferably 1 to 500 μm. The amount is preferably 50 parts by mass or less, more preferably 30 parts by mass or less, with respect to 100 parts by mass of the water absorbent resin. Blending can be done at any stage of water-absorbing resin production. Preferably after polymerization.

  In addition, the low mobility agent is an wafer made from starch, a wafer made from wheat flour or the like, a product made from gelatin, or a water-soluble film mainly made of polyvinyl alcohol, water-soluble paper, Depending on the material that is easily dispersed or dissolved by water, such as water-soluble paper dough, it may be packaged in a bag shape, case shape, capsule shape, etc., and tablet using an excipient such as lactose or sucrose fatty acid ester May be compressed into a shape such as a shape, a tablet, or a pellet (these may be collectively referred to as a package). Any form of the package may be included. Furthermore, the high mobility agent need not necessarily be a powder. For example, it may be dispersed in polyhydric alcohols such as glycerin, organic solvents such as alcohols and glycol ethers, surfactants and the like. When packaged by the package as described above, the degree of freedom of the form of the low mobility agent is increased.

  Next, actual examples performed will be described. FIG. 2 illustrates the apparatus used for the evaluation of this experiment. An S-shaped tube 200 (made of transparent vinyl) simulating a drain trap has an inner diameter of about 30 mm, and an open upper end portion 210 corresponds to a drain port. This vertical pipe is bent at a substantially right angle by an elbow 212 and then further bent at a substantially right angle by an elbow 214 and is directed vertically upward. Then, the elbow 216 is bent at a substantially right angle and is directed horizontally, and finally the elbow 218 is vertically directed downward. Here, the highest top surface position (in the inner tube) of the tube between the elbow 212 and the elbow 214 is slightly (for example, 5 to 50 mm, for example, 5 to 50 mm, which is the highest bottom surface position 222 of the tube between the elbow 216 and the elbow 218. Then, it is configured to be 35 mm lower. The lower end 220 is open, and here, it is in the same atmospheric pressure as the upper end 210. Before the experiment, water is poured from the upper end portion 210 to partially exceed the highest bottom surface position 222 of the trap portion of the main pipe 200. In this way, the sealed water 224 having a water surface at a position slightly lower than the highest bottom surface position 222 is collected. By this sealing water, the upper end portion 210 and the lower end portion 220 are separated and sealed with water.

[Sample preparation]
Sun fresh ST-500D * (manufactured by Sundia Polymer Co., Ltd., absorption ratio is 400 times), sun fresh ST-250D * (manufactured by Sundia Polymer Co., Ltd., absorption ratio is 700 times), which are water absorbent resins shown in Table 1. Aquakeep CA-300N (manufactured by Sumitomo Seika Co., Ltd.) was prepared. Here, Sunfresh ST-500D is an acrylic polymer, generally called an acrylic acid polymer partial sodium salt cross-linked product, the appearance at 20 ° C. is a white powder, and the central particle size is 150 to 710 μm. The apparent density is 0.60 g / ml, the water absorption is 400 g / g with deionized water, and a firm water-absorbing gel is formed. Aqua keep is made of poly (sodium acrylate), and “—COO ⁻ ions” and “Na ⁺ ions” are present in high concentrations. The appearance is white powder, the bulk density is 0.80 g / ml, the median particle size is 200 μm, and the water absorption is 400 to 800 g / g with ion-exchanged water. Osmotic pressure is generated by the difference between the ion concentration inside the water-absorbent resin and the ion concentration in the external aqueous solution. In addition, the affinity also acts as a water absorption force, and the hydrophilic group “—COOH” or “—COONa” in the highly water-absorbent resin has a high affinity with water, and this force also absorbs the aqueous solution into the water-absorbent resin. . On the other hand, the force that stops water absorption at a certain point is rubber elastic force, and the higher the crosslink density of the highly water-absorbent resin, the greater. The point at which the rubber elasticity and the force to absorb water are balanced is the water absorption capacity of the highly water absorbent resin. And the water absorption amount (ion-exchange water and 0.9% saline solution) of the water-absorbent resin used in the experiment was measured. About the measuring method, it carried out by the method defined in Japanese Industrial Standard (JIS K7223). The results are shown in Table 1. These water absorbent resins generally have low salt resistance. A thing with high salt tolerance may be unpreferable in the high mobility mentioned later.

  In this experiment, additive A (or a low mobility agent) was weighed according to the formulation shown in Table 2. They are put in a container and mixed, and Examples 1 to 10 and Comparative Examples 1 to 4 (here, the best one is taken as an example, and those treated as examples in ordinary patent application specifications are also called comparative examples) Therefore, even if it is a comparative example, it can be handled as a part of an example, not a conventional example.) Was prepared and filled in a glass container. Here, Table 3 summarizes the trade names, general names, and manufacturer names of each material. For example, Example 1 contains 4% by mass of a water-absorbing polymer, 70% by mass of liquid paraffin which is a component for forming an evaporation suppression film, about 26% by mass of gel-type silica, and a trace amount of pigment. 150 ml of water to be the sealed water 224 was put into the S-shaped tube shown in FIG. Thereafter, 25 g of each of the additives of Examples 1 to 10 and Comparative Examples 1, 2, and 3 was added, and 200 g of Comparative Example 4 was added and left for 2 hours to observe the state of the sealed water. As shown in Table 2, in Examples 1 to 10, the sealing water was solidified and an oil layer was formed on the surface. Comparative Example 1 was a low-viscosity liquid with a buoyant suspension. In Comparative Examples 2 and 3, the sealed water was solidified, but there was no oil layer on the surface. Comparative Example 4 was a highly viscous liquid and had no oil layer on the surface.

＊上記表において、添加剤Ａは、低易動度化剤であり、添加剤Ｂは、高易動度化剤である。

* In the above table, additive A is a low mobility agent, and additive B is a high mobility agent.

[Upside down test]
After leaving for 2 hours, the above-mentioned S-shaped tube 200 was gently turned upside down (for example, FIG. 2 (b) or (c)) and left for 5 minutes to observe whether the sealed water flows out. As shown in Table 2, in Examples 1 to 4, the oil layer on the surface flowed out, but the sealed water was completely solidified and did not flow out, and was fixed in the S-shaped tube. On the other hand, all of the comparative examples 1 flowed out of the S-shaped tube, and a space 226 was formed (FIG. 2C). In Comparative Examples 2 and 3, the solidified sealed water did not adhere to the pipe and flowed out. Since Comparative Example 4 was highly viscous, the outflow rate was slow, but all flowed out after 5 minutes.

  Here, evaluation was performed by upside down, but in actual use, it is considered that strict requirements are not necessarily required. For example, in the S-shaped tube 200 shown in FIG. 2, what is required is that the accumulated seal water 224 is not excessively discharged to the lower end portion 220 on the sewage side. For example, with an aspirator, it is said that a negative pressure of about 24 mmHg (about 3 kPa) can be achieved. For example, in Comparative Example 4, it is considered that excessive discharge is not performed with this level of negative pressure. In this sense, this can be considered as one of the embodiments.

[High mobility agent]
As described above, it can be seen that the one in which the low mobility agent is added can stably hold the sealed water. However, since this substantially clogs the drain trap, it cannot be used as a drain outlet or drainage facility. Therefore, it is desired that the sealed water whose solidification or fluidity is substantially deteriorated to be a smooth seal water as originally. At this time, it is not preferable to insert a rod or wire into the pipe and open the drain trap because the pipe may be damaged. Therefore, a high mobility agent that increases the mobility can be introduced. The high mobility agent is preferably a material that discharges the absorbed water to the material whose mobility is lowered, such as gelation by the low mobility agent. The high mobility agent is preferably one that dissolves in a fluid such as water having a high mobility after the addition. This is because if it remains in the drain trap as a solid substance, it may cause clogging. Moreover, what does not corrode the material of piping is preferable. Furthermore, it is preferable that it is harmless by flowing into sewage. As such a thing, the electrolyte mentioned above can be included, for example. The amount is preferably an amount sufficient to increase the mobility of the sealed water that has been effectively lowered in mobility. Further, this increase in mobility may be irreversible. This is because there is no worry of clogging the sewer pipe if you can keep it smooth. The electrolyte includes at least one selected from ionic inorganic salts, inorganic bases, inorganic acids, etc. and / or at least one selected from ionic organic salts, organic acids, organic bases, etc. It's okay.

  Organic acid is a general term for acids of organic compounds, and most organic acids are carboxylic acids and have a carboxyl group. The sulfonic acid is a relatively strong organic acid and has a sulfo group (or sulfone (acid) group). In addition, weakly acidic compounds having a hydroxy group, a thiol group, and an enol as characteristic groups are known. For example, acetic acid, citric acid, malic acid, amino acids and the like may also be included. An organic base refers to an organic compound used as a base, and generally refers to a Bronsted base that accepts protons. A phosphazene derivative or a Verkade base may also be included. Organic salt may contain what made the above-mentioned organic acid react with an organic base or an inorganic base. For example, sodium acetate, sodium citrate and the like.

  The inorganic acid is an acid obtained by a chemical reaction of an inorganic compound and includes, for example, hydrogen halide such as hydrochloric acid, nitric acid, phosphoric acid, sulfuric acid, boric acid, carbonic acid and the like. Examples of the inorganic base (inorganic basic substance) may include hydroxides of alkali metals and tetraalkylammonium, hydroxides of alkaline earth metals, and the like. More specifically, sodium hydroxide, lithium hydroxide, sodium hydroxide, potassium hydroxide, rubidium hydroxide, cesium hydroxide, tetramethylammonium hydroxide, tetraethylammonium hydroxide, calcium hydroxide, strontium hydroxide, water Barium oxide, europium (II) hydroxide, thallium (I) hydroxide, guanidine, etc. may be included. Inorganic salts may include salts obtained from the neutralization reaction of inorganic acids and inorganic bases as described above, such as alkali metal halides, nitrates, phosphates, sulfates, borates, carbonates. Alkaline earth metal halides, nitrates, phosphates, sulfates, borates, carbonates (including bicarbonates); other metal halides, nitrates, phosphates, sulfates, boric acid Salts, carbonates (including bicarbonates) and the like may also be included. For example, sodium sulfate, sodium carbonate, sodium hydrogen carbonate and the like can be suitably used. These electrolytes may be used alone or with other types. Considering the possibility of flowing into sewage, those with low environmental impact and low toxicity are preferred. Hereinafter, as an example, an example using salt, calcium chloride, citric acid, and sodium bicarbonate will be described.

  In addition, high mobility agents include wafers made from starch, wafers made from flour, etc., those made from gelatin, or water-soluble films, water-soluble papers made mainly from polyvinyl alcohol, It may be packaged in a bag shape, a case shape, a capsule shape, or the like by a material that is easily dispersed or dissolved by water such as water-soluble paper dough (these can be collectively referred to as a package). Any form of the package may be included. Furthermore, the high mobility agent need not necessarily be a powder. For example, it may be dispersed in polyhydric alcohols such as glycerin, organic solvents such as alcohols and glycol ethers, surfactants and the like. When packaged by the package as described above, the degree of freedom of the form of the high mobility agent is increased.

  In addition, the sealed water that has been made low mobility by the low mobility agent may have few parts that remain in the fluid state, and may not be immediately contacted with the high mobility agent. There is. In such a case, if the high mobility agent can be provided in the form of a fluid, the responsiveness is increased, which may be preferable. For example, when it is supplied in the state of a solution, the surface of the sealed water whose mobility is lowered by the low mobility agent is widely covered, and it is considered that a wide contact is performed more quickly. The concentration of the high mobility agent (for example, electrolyte) in this solution may be any, for example, a saturated concentration solution or a supersaturated concentration solution.

  Further, the high mobility agent may be compressed into a tablet, tablet, pellet or the like using an excipient such as lactose or sucrose fatty acid ester. It is considered that the high mobility agent that is introduced into the sealed water that has been lowered in mobility by the low mobility agent is more effective when physically stirred together with the sealed water. For example, by using a binder such as polyvinyl alcohol, water-soluble low molecular weight resin, glue, starch, candy, etc., solidify the high mobility agent, and physical action such as stirring in a rod shape, spatula shape, spoon shape, etc. Can be formed into a form that is easy to exert. Alternatively, the high mobility agent may be sealed in a rod-shaped package with various water-soluble packaging materials. If it does in this way, the physical force can be given to the sealed water made low mobility at the time of injection. Furthermore, a high mobility-immobilizing agent may be fixed to the tip and / or side surface of a rod-shaped member that is preferably made of various water-soluble materials in consideration of subsequent treatment.

  The high mobility agent may contain a carbonate such as sodium carbonate and / or sodium hydrogen carbonate, and more preferably may contain a certain amount of an organic acid. In this case, when it comes into contact with the low-mobility seal water, it reacts with water components (including water that oozes on the surface of the low-mobility seal water), and carbon dioxide. Is generated. Since the generated carbon dioxide gas has an enormous volume, it is considered that the effective component of the high mobility agent can be easily brought into contact with the sealed water having a low mobility. Furthermore, when it becomes a fluid, the stirring effect by a bubble is anticipated and the high mobility can be accelerated | stimulated acceleratingly. These carbon dioxide generation types are not limited to powder shapes, but may take any form such as a ball shape, a tablet shape, a pellet shape, or a rod shape.

[Effect of high mobility agent]
For Examples 1 to 10 and Comparative Examples 1, 2 and 4 shown in Table 2 in which the low mobility agent was added, after standing for 2 hours, the above-described upside-down was not performed. A predetermined amount of electrolyte (salt, calcium chloride, citric acid, and sodium hydrogen carbonate), which is an example of the high mobility agent shown in the lower row, was added, and the state of the sealed water after 1 hour was observed. As a result, as shown in Table 2, Examples 1 to 10 were completely liquefied. Similarly, Comparative Examples 1 and 2 were liquefied. Comparative Example 3 is not evaluated because no high mobility agent is added. In Comparative Example 4, no change was observed even when the high mobility agent was added, and the liquid remained highly viscous.

[Drainage test]
After the experiment to examine the effect of the above high mobility agent, in the state as it is, pour 500 ml of water at once from a drain outlet side (210) of the S-shaped tube using a 20 cm diameter funnel to see how the sealed water is. Investigated whether it would be in a state. As a result, as shown in Table 2, in Examples 1 to 10 and Comparative Examples 1 and 2, the water poured from the drain outlet side smoothly flowed to the sewage side. On the other hand, in Comparative Example 3, the sealed water remained solidified, and the poured water overflowed to the drain outlet side. In Comparative Example 4, the viscosity was high and the water poured from the drain port side did not flow smoothly and overflowed to the drain port side. Here, the high mobility agent was allowed to stand for 1 hour after charging, but the same result was obtained even when water was poured immediately after charging.

[Evaporation prevention test]
Next, 150 ml of water was again injected into the S-shaped tube similar to the above, and the sealed water was stored in the same manner as in normal use. 25 g each of Examples 1 to 10 and Comparative Examples 1, 2, and 3 and 200 g for Comparative Example 4 were added to an S-shaped tube containing sealed water and left at room temperature for 3 weeks, and the decrease in the water level was measured. The results are shown in Table 2. In Examples 1 to 10 and Comparative Example 1, the water level did not decrease, and in Comparative Examples 2, 3, and 4, the water level decreased. Here, Comparative Example 2 could not sufficiently prevent evaporation, but it was less likely to evaporate as an example capable of maintaining sealed water at low temperatures (for example, in winter) (Comparison (Not as an example).

  As a result of the above experiments, in order to solidify the sealing water, solid addition cannot be obtained with the addition amount corresponding to the water absorption amount of the water-absorbing resin, and the water-absorbing resin necessary for solidifying the sealing water cannot be obtained. I found it desirable to use double the amount. Moreover, the additive A for sealing water solidifies sealing water strongly, and can prevent the sucking-out action of sealing water for a long period of time. Furthermore, if an evaporation inhibitor is mixed, the surface of the solidified sealing water can be covered with an oil film, and the decrease due to evaporation of the sealing water can be suppressed. Moreover, by adding the sealing water additive B (high mobility agent) before reuse, solidification of the sealing water can be quickly peptized and the flow of drainage can be easily returned. .

  As described above, the sealing water additive A (low mobility agent) of the present invention can reduce the mobility of the sealing water, and can be solidified, gelled, made highly viscous, and the like. Therefore, it is possible to maintain the sealed water against the negative pressure from the sewage side. On the other hand, the additive B for sealing water (high mobility agent) of the present invention has a low mobility and is easily moved by being put into a sealed water that has been solidified, gelled, or made highly viscous. The degree can be increased, fluidity can be imparted, and the drain trap can be made available again.

10 Toilet body 12 Front part 14 Partition plate 16 Drain pipe
18 Maximum bottom position of outlet 100 Water-sealed drain trap
102 Sealed water 104 Water surface 106 Evaporation prevention layer
200 S-shaped pipe 210 Upper end 220 Lower end 212, 214, 216, 218 Elbow 222 Maximum bottom surface position 800 Wash basin 812 Water tap 814 Sink
818, 846, 864 Sealed water 840, 860 Drainage system 844 Piping 880 Flush toilet 884 Sealed water 886 Partition plate 900 Water-sealed drain trap 904 Bell-shaped cap body A Sealing water additive (low mobility agent) B Sealing Water additive (high mobility agent)

Claims (21)

In the water-sealed drain trap provided in the middle of the drainage flow,
It is a low mobility agent in a form that can be poured into the stored water,
By contacting the water seal, the seal and the seal water is low mobility cathodic to changes before and / or after the pressure of the waste water flow direction the water seal type drain trap along low mobility agent that can Rukoto to exhibit the function of shutting off the water.   The low mobility agent according to claim 1, further comprising a gelling agent.   The low mobility agent according to claim 2, wherein the gelling agent contains a water-absorbing polymer.   The water-absorbing polymer is one or more monomers selected from polysaccharides such as starch or cellulose and / or monosaccharides and water-soluble monomers and / or monomers that become water-soluble by hydrolysis; The low mobility agent according to claim 3, comprising a water-absorbing resin obtained by polymerizing a crosslinking agent as an essential component and, if necessary, performing hydrolysis.   5. The low mobility agent according to claim 1, comprising a water-insoluble substance having a specific gravity of less than 1 and a vapor pressure lower than that of water. In a water-sealed drain trap,
A low mobility agent according to any one of claims 1 to 5, is a high mobility agent in a form that can be charged into a sealed water having a low mobility,
By making contact with the low-mobility sealed water, the low-mobility sealed water is made highly mobile, so that the sealed water can flow out to the sewage side along with newly drained water. high mobility agent that can be Rukoto.   The high mobility agent according to claim 6, comprising an electrolyte.   The high mobility agent according to claim 7, wherein the electrolyte contains at least one selected from an ionic inorganic salt, an inorganic base, and an inorganic acid.   The high mobility agent according to claim 7, wherein the electrolyte contains at least one selected from ionic organic salts, organic acids, and organic bases. A system that functions to seal water in a water-sealed drain trap,
A low mobility agent that is introduced into the sealed water to reduce the mobility, and
See containing and a high mobility agent for increasing the mobility by making contact with the sealing water said brought into low mobility by low mobility agent,
A water sealing functional system capable of exerting a function of blocking the sealed water by the low mobility agent and eliminating clogging of drainage by the high mobility agent .   The water sealing function system according to claim 10, wherein the low mobility agent includes a gelling agent.   The water sealing functional system according to claim 11, wherein the gelling agent contains a water-absorbing polymer.   The water-absorbing polymer is selected from polysaccharides (I-1) and / or monosaccharides (I-2) such as starch or cellulose, water-soluble monomers and / or monomers that become water-soluble by hydrolysis. 13. A water-absorbing resin obtained by polymerizing one or more monomers (b) and a crosslinking agent (c) as essential components and, if necessary, performing hydrolysis, according to claim 12, The sealed water functionalization system described.   The seal according to any one of claims 10 to 13, wherein the low mobility agent further includes a water-insoluble substance having a specific gravity of less than 1 and a vapor pressure lower than that of water. Water functionalization system.   The water sealing functional system according to claim 10, wherein the high mobility agent includes an electrolyte.   The sealed electrolyte functional system according to claim 15, wherein the electrolyte includes at least one selected from an ionic inorganic salt, an inorganic base, and an inorganic acid.   The sealed electrolyte functional system according to claim 15, wherein the electrolyte includes at least one selected from an ionic organic salt, an organic acid, and an organic base. A method of reducing the mobility of the water-sealed drain trap that can drain from the drain side to the sewage side,
A low mobility method comprising the step of introducing a low mobility agent into the sealed water from the drain outlet side. The low mobility method according to claim 18, further comprising a step of introducing a high mobility agent into the drain trap provided with sealed water whose mobility is lowered by the low mobility agent. Immediately before the step of introducing the low mobility agent from the drainage port side, simultaneously, or immediately after, the low mobility method according to claim 18 or 19 comprising the step of introducing water seal evaporation inhibitor . In a water-sealed drain trap,
A water-sealing evaporation inhibitor comprising a water-absorbing polymer comprising solid particles having a density of 0.9 or more and containing a water-insoluble substance having a specific gravity of less than 1 and a vapor pressure lower than that of water,
The water-insoluble substance is included in the solid particles so that the water-insoluble substance is dispersed in the sealed water when the solid particles come into contact with the sealed water stored in the water-sealed drain trap. Sealing water evaporation inhibitor.

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