JP6471389B1 - How to recycle interior materials - Google Patents

Abstract

[PROBLEMS] To provide a good aesthetic appearance even when the interior material has a high surface contamination level, or a portion of the interior material that has a high surface contamination level and a portion of the interior material that has a low surface contamination level. The technology that can recycle the interior material is presented.
In a method for regenerating an interior material for regenerating an interior material attached to a ceiling or an inner wall, step S4 for applying an alkaline cleaning treatment liquid to the surface of the interior material, and a cleaning treatment liquid on the surface of the interior material. Step S5 in which the interior material is left in the applied state, and Step S6 in which a neutralization treatment liquid for neutralizing the cleaning treatment liquid is applied to the surface of the interior material and the surface treatment of the interior material is performed. Have.
[Selection] Figure 1

Description

  The present invention relates to a method for recycling interior materials.

  The ceiling or wall of the building is decorated with interior materials. As such an interior material, since it is excellent in aesthetics, an interior cloth made of vinyl chloride or cloth is widely used. However, the interior cloth gradually becomes dirty due to natural deterioration or generation of tobacco smoke, oil smoke, soot or mold. Therefore, normally, when the dirt becomes conspicuous, the dirty interior cloth is peeled off and replaced with a new interior cloth.

  However, when the interior cloth is replaced in this way, the replacement work takes a long time or its cost is very high. In view of this, a method of reclaiming interior materials has been proposed in which interior cloth is regenerated by washing. Alternatively, an interior material coating method has been proposed in which an interior cloth is painted to restore its aesthetics.

  In Japanese Patent No. 3261499 (Patent Document 1), in a method for recycling an interior material attached to a ceiling or a wall, a cleaning treatment liquid is sprayed on the surface of the interior material, and the cleaning treatment liquid is dispersed. A technique is disclosed in which a physical cleaning process is performed on the surface of the material, and a water rinsing process is performed on the surface of the interior material that has been subjected to the physical cleaning process.

  In Japanese Patent No. 5393720 (Patent Document 2), an interior material is applied to a wall interior material attached to the inner wall of a building or a ceiling interior material attached to the ceiling of the building to restore its aesthetics. In a material coating method, a technique for applying a water-based paint to the surface of a wall interior material or a ceiling interior material is disclosed.

Japanese Patent No. 3261499 Japanese Patent No. 5393720

  For example, in the technique described in Patent Document 1, stains on the interior cloth made of vinyl chloride, fabric, or the like can be easily removed, and the interior cloth can be regenerated so as to have a good aesthetic appearance. .

  However, if the surface of the interior material (interior cloth) has a high degree of contamination, or the interior material has a high surface contamination level and the interior material has a low surface contamination level, The dirt attached to the surface of the interior material cannot be easily removed, and the interior material cannot be regenerated so as to have a good aesthetic appearance.

  The object of the present invention is that the surface of the interior material has a high degree of contamination, or a portion of the interior material that has a high degree of surface contamination and a portion of the interior material that has a low degree of surface contamination, It is to provide a technology that can recycle the interior material so that it has a good aesthetic appearance.

  Of the inventions disclosed in the present application, the outline of typical ones will be briefly described as follows.

  An interior material regeneration method according to an embodiment of the present invention is an interior material regeneration method for regenerating an interior material attached to a ceiling or an inner wall, wherein an alkaline cleaning liquid is applied to the surface of the interior material (a ) Step, and after the step (a), the interior material is left in a state where the cleaning treatment liquid is applied to the surface of the interior material. After the step (b) and (b), on the surface of the interior material, (C) a step of applying a first neutralization treatment liquid for neutralizing the washing treatment liquid and subjecting the surface of the interior material to a washing treatment.

  Further, the interior material regeneration method according to one embodiment of the present invention is an interior material regeneration method for regenerating an interior material attached to a ceiling or an inner wall. The interior material is higher than the degree of contamination of the surface of the second part different from the first part, and the interior material regeneration method applies a bleaching treatment liquid to the surface of the first part (a) step, (a) step After that, an alkaline cleaning solution is applied to the surface of the first part and the surface of the second part (b), and after the step (b), the surface of the first part and the second part (C) a step of applying a neutralization treatment liquid for neutralizing the washing treatment liquid to the surface of the first surface and subjecting the surface of the first portion to the surface of the second portion.

  Among the inventions disclosed in the present application, effects obtained by typical ones will be briefly described as follows.

  According to the exemplary embodiment of the present invention, the interior material surface has a high degree of contamination, or the interior material has a high surface contamination level and the interior material has a low surface contamination level. Even if there is a mixture, the interior material can be regenerated so that it has a good aesthetic appearance.

It is a flowchart which shows an example of the one part step of the reproduction | regeneration method of the interior material of embodiment. It is a figure which shows the room which performs the reproduction | regeneration process of the interior material of embodiment. It is a perspective view which shows the applicator used for the reproduction | regenerating method of the interior material of embodiment. It is a flowchart which shows an example of the one part step of the reproduction | regeneration method of the interior material of embodiment. It is a flowchart which shows an example of the one part step of the reproduction | regeneration method of the interior material of embodiment. It is a figure which shows the locus | trajectory of a movement of the applicator at the time of performing the reproduction | regeneration process of the interior material of embodiment. It is a figure which shows the locus | trajectory of a movement of the applicator at the time of performing the reproduction | regeneration process of the interior material of embodiment. It is a flowchart which shows a part of step of the reproduction | regenerating method of the interior material of the 1st modification of embodiment. It is a flowchart which shows a part of step of the reproduction | regenerating method of the interior material of the 2nd modification of embodiment. It is a flowchart which shows a part of step of the reproduction | regeneration method of the interior material of the 3rd modification of embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that components having the same function are denoted by the same reference symbols throughout the drawings for describing the embodiment, and the repetitive description thereof will be omitted.

(Embodiment)
<How to recycle interior materials>
Below, the reproduction | regenerating method of the interior material (interior cloth) of the embodiment as an embodiment of the present invention will be described. The interior material regeneration method according to the present embodiment is an interior material regeneration method in which interior materials attached to ceilings or inner walls of a plurality of rooms included in an apartment house having a plurality of dwelling units are regenerated.

  FIG. 1 is a flowchart showing an example of some steps of a method for regenerating an interior material according to an embodiment. FIG. 2 is a diagram illustrating a room in which the interior material regeneration process of the embodiment is performed. FIG. 3 is a perspective view showing an applicator used in the method for recycling an interior material according to the embodiment. FIG.4 and FIG.5 is a flowchart which shows an example of a part of step of the reproduction | regeneration method of the interior material of embodiment. 6 and 7 are diagrams showing the trajectory of the movement of the applicator when performing the interior material regeneration process of the embodiment. 2, 6 and 7 are central projection views of a room in which the interior material regeneration process of the embodiment is performed as viewed from one wall side.

  Below, the example shown in FIG. 1 is demonstrated and demonstrated as a reproduction | regenerating method of the interior material of this Embodiment. Also, the interior material recycling method of the present embodiment illustrated in FIG. 1 includes an interior material 4 attached to the ceiling 1 or the inner wall 2 of a room having a ceiling 1, an inner wall 2 and a floor 3, as shown in FIG. Is to play.

  In the regeneration process of the interior material shown in FIG. 1, first, dust on the surface of the interior material 4 (see FIG. 2), that is, dust adhering to the surface of the interior material 4 is removed, and the degree of dirt on the surface of the interior material 4 is removed. Is evaluated (step S1 in FIG. 1).

  A specific method for removing dust in step S1 is not particularly limited. For example, the surface of the interior material 4 can be brushed (physically cleaned).

  Moreover, in this step S1, when removing dust, the degree of dirt on the surface of the interior material 4 is evaluated by visual observation, for example. Thus, for example, before performing the work of applying the cleaning treatment liquid to the surface of the interior material attached to the ceiling or inner wall of a plurality of rooms possessed by the apartment house having a plurality of dwelling units, the order of the ceiling or inner wall on which the work is performed You can put it on. And by ranking the ceiling or inner wall where work is performed, even when multiple workers perform work, there is no mistake in the order of the ceiling or inner wall where work is performed, among the multiple workers. Work can be done efficiently.

  In addition, when dust is not adhering to the surface of the interior material 4, the operation | work which removes dust among step S1 is abbreviate | omitted, and only the operation | work which evaluates the degree of the surface of the interior material 4 can be performed.

  Further, in this step S1, for example, a curing tape is attached to an outlet plate or the like, thereby curing the area of the ceiling 1 (refer to FIG. 2) or the inner wall 2 (refer to FIG. 2) that does not require application of the cleaning treatment liquid. May be.

  In the interior material regeneration process shown in FIG. 1, next, a bleaching solution is applied to the surface of the interior material 4 (see FIG. 2) (step S2 in FIG. 1). In this step S2, before applying the cleaning treatment liquid to the surface of the interior material 4, a so-called pre-bleaching treatment is performed in which the bleaching treatment liquid is applied and bleached in advance.

  As a result of evaluating the degree of dirt on the surface of the interior material 4 in step S1, the degree of dirt on the surface of the part PR1 in the interior material 4 is different from the part PR1 in the interior material 4 as shown in FIG. It is assumed that the degree of contamination on the surface of the part PR2 disposed below the part PR1 is evaluated to be higher. That is, it is assumed that the degree of dirt on the surface of the upper part PR1 of the interior material 4 is evaluated to be higher than the degree of dirt on the surface of the lower part PR2 of the interior material 4. In such a case, in step S2, the bleaching solution is applied to the surface of the upper portion PR1 of the interior material 4, but the bleaching solution is not applied to the surface of the lower portion PR2 of the interior material 4.

  When the entire surface of the interior material 4 is soiled due to dirt that changes the color of the surface of the interior material 4, for example, tobacco stain, the surface of the upper portion PR 1 of the interior material 4 and the interior material 4 There may be a difference in the degree of discoloration with the surface of the lower portion PR2. In such a case, when a cleaning process is applied to the surface of the interior material 4 in the usual manner and washing is performed, the surface of the upper part PR1 of the interior material 4 and the lower part PR2 of the interior material 4 are changed. There is also a difference in the color after the cleaning process with the surface. This is because dirt that changes the color of the surface of the interior material 4, such as tobacco dirt, tends to adhere to the upper surface of the interior material 4. This is because ultraviolet rays are less likely to be irradiated than the upper surface of the interior material 4. In addition, when the surface of the interior material 4 is irradiated with ultraviolet rays, the attached stain pigment is decomposed on the surface of the interior material 4 irradiated with ultraviolet rays, so that the stain color becomes light and approaches white. Cause color loss. If color loss occurs significantly, it may turn pale.

  On the other hand, in the regeneration method of the interior material according to the present embodiment, first, a bleaching treatment liquid is applied only to the surface of the upper portion PR1 of the interior material 4, and only the dirt on the surface of the portion PR1 is bleached. A so-called pre-bleaching process is performed in which the hues of the upper part PR1 of the interior material 4 and the lower part PR2 of the interior material 4 are matched to each other. As a result, the interior material 4 has a large amount of bleaching solution applied to the surface and a small amount of the interior material 4 applied to the surface of the bleaching solution, resulting in gradation. To do. Therefore, even if it is evaluated in step S1 that there is a difference in the degree of discoloration between the surface of the upper part PR1 of the interior material 4 and the surface of the lower part PR2 of the interior material 4, the interior It prevents or suppresses a difference in the color after the cleaning process between the surface of the upper part PR1 of the material 4 and the surface of the lower part PR2 of the interior material 4, and uniforms the color after the cleaning process Can be finished.

  The part PR2 may be a part different from the part PR1, and the part PR2 does not have to be disposed below the part PR1. In step S2, a little bleaching treatment liquid may be applied to the surface of the lower portion PR2 of the interior material 4. For example, the coating amount per unit area of the bleaching processing liquid on the surface of the upper part PR1 of the interior material 4 is larger than the coating amount per unit area of the bleaching processing liquid on the surface of the lower part PR2 of the interior material 4 As such, the bleaching treatment liquid may be applied to the surface of the upper portion PR1 of the interior material 4 and the surface of the lower portion PR2 of the interior material 4.

  As the bleaching treatment solution, a bleaching treatment solution similar to the washing treatment solution described in step S3 to be described later, that is, a bleaching treatment solution in which an alkaline inorganic detergent, a soil-degrading enzyme, and a first bleaching agent are dissolved in water is used. However, it is preferable to use, for example, a bleaching treatment liquid containing a cleaning treatment liquid described in step S3 described later and a bleaching agent different from the washing treatment liquid. Further, for example, a bleaching treatment liquid containing a bleaching agent can be simply used, unlike the cleaning treatment liquid described in step S3 described later.

A specific method for applying the bleaching treatment liquid in step S2 is not particularly limited. For example, whether the bleaching treatment liquid is spread on the surface of the interior material (interior cloth) 4 using a low-pressure sprayer or the like. It can be applied by a mop with a stick or the like, or can be applied by a mop with a stick after being sprayed using a low-pressure sprayer or the like. At this time, the spraying amount of the bleaching treatment liquid on the surface of the portion PR1, that is, the coating amount is preferably about 10 to 100 g / m ² .

  When a bleaching solution similar to the cleaning solution described in step S3 described later is used as the bleaching solution, one having a pH of 10 or more (alkaline) and capable of removing a wide range of stains can be used. For example, a bleaching solution containing an alkaline cleaner, a soil-degrading enzyme, and a first bleaching agent may be used, or an alkaline detergent, a soil-degrading enzyme (neutral agent), and a first bleaching agent may be used. Each may be sprayed or applied independently.

  As an alkaline detergent, for example, an aqueous detergent containing an alkali substance such as sodium or potassium alkali metal salt, silicate, or ammonia compound such as one containing sodium hydroxide and sodium carbonate is used. be able to. As the alkaline detergent, an aqueous detergent containing an alkaline substance such as aminoethanol, anionic surfactant, inorganic alkali, 2-butoxyethanol, sodium metasilicate, sodium hypochlorite, or the like can be used.

  The soil-degrading enzyme is used to uniformly wash and finish the entire interior material (interior cloth). As the soil degrading enzyme, one containing propylene glycol, papain, polyethylene or the like can be used.

  The first bleaching agent is used for finishing the interior material (interior cloth) with high brightness. The first bleaching agent is preferably an oxidized bleaching agent having a large effect on the alkali side. Specifically, for example, a 1 to 35% aqueous solution of hydrogen peroxide, a 1 to 20% aqueous solution of sodium peroxide, or the like may be used. it can. In addition, chlorine-based bleaching agents such as sodium hypochlorite effective chlorine 1-12% aqueous solution are also effective.

  In step S2, a bleaching solution can be applied using the applicator 11 shown in FIG. As shown in FIG. 3, the applicator 11 is attached to the base 14, an elongated rod-shaped handle 12 (rod member), a base 14 connected to the handle 12 via a universal joint 13 (connector), and the base 14. Application unit 15. The base portion 14 has a plate shape or a bowl shape. The base portion 14 has a surface portion 14 a disposed on the side opposite to the side connected to the handle portion 12. The surface portion 14a has a rectangular shape in a plan view and has a flat surface. The application part 15 is attached to the surface part 14a so that the substantially whole surface part 14a may be covered. The coating unit 15 includes, for example, a base sheet having a rectangular shape and a moquette attached to the base sheet, and the bleaching solution is supplied to the coating unit 15.

  When the applicator 11 shown in FIG. 3 is used, in step S2, the bleaching solution is applied to the surface of the part PR1 by the applicator 11 including the applicator 15 supplied with the bleaching solution.

  When the part PR2 is adjacent to the part PR1, preferably, in step S2, the application unit 15 is pressed against the surface of the interior material 4, and the applicator 11 is moved from the position of the surface of the part PR1 to the position of the surface of the part PR2. And the bleaching solution is extended from the surface of the part PR1 to the surface of the part PR2. That is, in the boundary between the part subjected to the preceding bleaching process and the part not subjected to the preceding bleaching process in the interior material 4, the bleaching solution is applied from the part subjected to the preceding bleaching process toward the part not subjected to the preceding bleaching process. Pay as it flows.

  In such a case, the bleaching treatment applied to the surface of the interior material 4 from the region where the amount of the bleaching solution applied to the surface is large to the region where the amount of the bleaching solution applied to the surface is small. The application amount of the liquid gradually decreases, so-called gradation is formed. Therefore, it further prevents or suppresses the occurrence of a difference in the color after the cleaning process between the surface of the upper part PR1 of the interior material 4 and the surface of the lower part PR2 of the interior material 4, and after the cleaning process The color tone can be finished more uniformly.

  Further, when the part PR2 is disposed below the part PR1 and the part PR2 is adjacent to the part PR1, when the bleaching process liquid is extended from the surface of the part PR1 to the surface of the part PR2, the bleaching process liquid is lowered from above. Therefore, the bleaching solution does not return in the direction opposite to the direction in which the bleaching solution is stretched. Therefore, in the interior material 4, the application of the bleaching solution applied to the surface from the region where the amount of the bleaching solution applied to the surface is large to the region where the amount of the bleaching solution applied to the surface is low. The amount can be gradually decreased more reliably.

  In the interior material regeneration process shown in FIG. 1, a cleaning solution is then prepared according to the degree of contamination of the surface of the interior material 4 (see FIG. 2) (step S3 in FIG. 1). In this step S3, a cleaning treatment liquid to be applied to the surface of the interior material is prepared in step S4 to be described later by preparing a cleaning agent or the like according to the degree of contamination of the surface of the interior material 4 evaluated in step S1. .

  A cleaning treatment liquid having a pH of 10 or more (alkaline) and capable of removing a wide range of dirt can be used. For example, a cleaning treatment liquid containing an alkaline cleaner, a soil-degrading enzyme, and a first bleaching agent may be used. Alternatively, an alkaline cleaner, a soil-decomposing enzyme (neutral agent), and a first bleaching agent may be used. Each may be sprayed or applied independently.

  As described above, the alkaline detergent contains, for example, an alkali metal salt such as sodium hydroxide or sodium carbonate, an alkali metal salt such as sodium or potassium, a silicate, or an ammonia compound. An aqueous cleaning agent can be used. As the alkaline detergent, an aqueous detergent containing an alkaline substance such as aminoethanol, anionic surfactant, inorganic alkali, 2-butoxyethanol, sodium metasilicate, sodium hypochlorite, or the like can be used.

  As described above, the soil-degrading enzyme is used to uniformly wash and finish the entire interior material (interior cloth). As the soil degrading enzyme, one containing propylene glycol, papain, polyethylene or the like can be used.

  As described above, the first bleaching agent is used to finish the interior material (interior cloth) with high brightness. The first bleaching agent is preferably an oxidized bleaching agent having a large effect on the alkali side. Specifically, for example, a 1 to 35% aqueous solution of hydrogen peroxide, a 1 to 20% aqueous solution of sodium peroxide, or the like may be used. it can. In addition, chlorine-based bleaching agents such as sodium hypochlorite effective chlorine 1-12% aqueous solution are also effective.

  In the interior material regeneration process shown in FIG. 1, next, a cleaning treatment liquid is applied to the surface of the interior material 4 (see FIG. 2) (step S4 in FIG. 1). In this step S4, the alkaline cleaning liquid prepared in step S3 is applied to the surface of the part PR1 (see FIG. 2) and the surface of the part PR2 (see FIG. 2), that is, to the surface of the interior material 4. Apply.

The specific method of applying the cleaning treatment liquid in step S4 is not particularly limited. For example, cleaning is performed on the surface of the part PR1 and the surface of the part PR2, that is, the surface of the interior material (cloth for interior) 4. The treatment liquid can be sprayed using a low-pressure sprayer or the like, applied by a mop with a stick, or applied using a mop with a stick after spraying using a low-pressure sprayer or the like. At this time, the spraying amount of the cleaning treatment liquid on the surface of the part PR1 and the surface of the part PR2, that is, the coating amount is preferably about 10 to 100 g / m ² .

  In step S4, similarly to step S2, the cleaning treatment liquid can be applied using the applicator 11 shown in FIG. At this time, a cleaning treatment liquid is supplied to the application unit 15. When the applicator 11 shown in FIG. 3 is used, in step S4, the applicator includes the applicator 15 supplied with the cleaning treatment liquid on the surface of the part PR1 and the surface of the part PR2, that is, the surface of the interior material 4. 11, the cleaning treatment liquid is applied.

  In the regeneration process of the interior material shown in FIG. 1, next, the interior material 4 is left in a state where the cleaning treatment liquid is applied to the surface of the interior material 4 (see FIG. 2) (step S5 in FIG. 1). In this step S 5, a so-called “fixed cleaning process” is performed to clean the surface of the interior material 4 by placing a cleaning treatment liquid on the surface of the interior material 4 until the dirt is decomposed.

  As a result, the state where the cleaning treatment liquid is applied to the surface of the interior material 4 can be maintained until the stain attached to the surface of the interior material 4 is decomposed. Easy to remove.

  That is, in the regeneration process of the interior material according to the present embodiment, a pre-bleaching process and an imposition cleaning process are performed. Thereby, even if the degree of dirt on the surface of the interior material 4 is high, or the part of the interior material 4 where the degree of dirt on the surface is high and the part of the interior material 4 where the degree of dirt on the surface is low are mixed, The dirt adhering to the surface of the interior material 4 can be easily removed, and the interior material 4 can be regenerated so as to have a good aesthetic appearance.

  Preferably, in this step S5, the interior material 4 is left for 1 to 24 hours in a state where the cleaning treatment liquid is applied to the surface of the interior material 4. When the standing time is 1 hour or longer, the time for maintaining the state where the cleaning treatment liquid is applied to the surface of the interior material 4 can be increased to some extent as compared with the case where the standing time is less than 1 hour. It is easy to remove the dirt adhering to the surface. Further, when the leaving time is 24 hours or less, compared with the case where the leaving time exceeds 24 hours, the time required for the regeneration process of the interior material is ensured to some extent while ensuring the effect of removing dirt attached to the surface of the interior material 4. It can be shortened.

  Further, it is preferable to change the standing time according to the degree of contamination. For example, when the degree of contamination is low, it is preferable to shorten the leaving time, and when the degree of contamination is high, it is preferable to increase the leaving time. As a result, in the portion of the interior material 4 where the surface contamination level is high, while ensuring the effect of removing the dirt attached to the surface of the interior material 4 to some extent, in the interior material 4 where the surface contamination level is low, The time required for the regeneration process of the interior material 4 can be shortened.

  In step S5, in step S4, the cleaning liquid is applied in order from the portion of the interior material 4 having the higher surface contamination level so that the portion of the interior material 4 having the higher surface contamination level is left longer. It is preferable to do.

  For example, an aqueous sodium hydroxide solution and an aqueous sodium carbonate solution are both colorless and transparent. Propylene glycol is colorless and transparent, and papain and polyethylene are both white. The hydrogen peroxide solution is colorless, sodium peroxide is yellowish white, and sodium hypochlorite is light yellow. Therefore, since the cleaning treatment liquid is also colorless, white, or yellowish white, it is identified whether or not the cleaning treatment liquid is applied to the surface of the interior material 4 after applying the cleaning treatment liquid to the surface of the interior material 4. It is difficult.

  On the other hand, in step S4, by applying the cleaning treatment liquid in order from the part of the interior material 4 having the highest degree of contamination on the surface, it is possible to easily grasp which part of the interior material 4 has been applied to the surface during the work. be able to. Moreover, even if a plurality of workers perform work by applying the cleaning treatment liquid in order from the part with the highest degree of contamination on the surface of the interior material 4, the surface of the interior material 4 among the plurality of workers. Since the order of the portions for performing the operation of applying the cleaning treatment liquid is not mistaken, the operation can be performed efficiently.

  In the regeneration process of the interior material shown in FIG. 1, next, the surface of the interior material 4 is cleaned by applying a neutralization treatment liquid that neutralizes the cleaning treatment liquid to the surface of the interior material 4 (see FIG. 2). (Step S6 in FIG. 1). In this step S6, the neutralization treatment liquid is applied to the surface of the part PR1 (see FIG. 2) and the surface of the part PR2 (see FIG. 2), that is, the surface of the interior material 4, and the cleaning treatment liquid is applied. In this step, the surface of the part PR1 and the surface of the part PR2 to which the cleaning liquid is applied, that is, the surface of the interior material 4 to which the cleaning liquid is applied, are removed, that is, the dirt is removed. Thereby, the alkaline cleaning liquid applied to the surface of the interior material 4 can be neutralized by the neutralization liquid, and the alkaline cleaning liquid along with the dirt can be removed from the surface of the interior material 4. it can.

  In the cleaning process in step S6, first, a neutralization treatment liquid for neutralizing the alkaline cleaning treatment liquid is applied to the surface of the interior material 4 (see FIG. 2) (step S7 in FIG. 1). That is, the cleaning process of step S6 has a step S7 of applying a neutralization treatment liquid to the surface of the interior material 4 to perform a neutralization process that neutralizes the alkaline cleaning treatment liquid.

The specific method of applying the neutralization treatment liquid in step S7 is not particularly limited. For example, the surface of the part PR1 (see FIG. 2) and the surface of the part PR2 (see FIG. 2), that is, the interior material. (Interior cloth) With a stick after the neutralizing solution is sprayed on the surface of 4 using a low-pressure sprayer, etc., or applied with a mop with a stick, or sprayed using a low-pressure sprayer etc. It can be applied with a mop or the like. At this time, it is preferable that the spraying amount of the neutralizing treatment liquid on the surface of the part PR1 and the surface of the part PR2, that is, the coating amount is about 10 to 100 g / m ² .

  As the neutralization treatment liquid, for example, an aqueous solution of hydrogen peroxide 1 to 35% can be used. In such a case, the alkaline cleaning solution can be efficiently neutralized.

  As shown in FIG. 4, preferably, the neutralization process of step S7 includes a first neutralization process of step S9 and a second neutralization process of step S10.

  In the first neutralization treatment step of step S9, the first neutralization treatment liquid is applied to the surface of the part PR1 and the surface of the part PR2, that is, the surface of the interior material 4. Moreover, in this 2nd neutralization process of step S10, after the 1st neutralization process of step S9, the neutralization which neutralizes a washing process liquid on the surface of the interior raw material 4 with which the neutralization process liquid was apply | coated. Apply treatment solution. That is, in the second neutralization treatment step of step S10, the second neutralization treatment liquid is applied to the surface of the part PR1 and the surface of the part PR2, that is, the surface of the interior material 4. In other words, in the neutralization treatment step of Step S7, the neutralization treatment step of applying the neutralization treatment liquid to the surface of the interior material 4 and neutralizing the alkaline cleaning treatment liquid is repeated twice.

  By performing the neutralization treatment step twice in this manner, the alkaline cleaning treatment liquid applied to the surface of the interior material 4 is reliably neutralized as compared with the case where the neutralization treatment step is performed only once. be able to.

  In step S9 and step S10, the neutralization process liquid can be apply | coated using the applicator 11 shown in FIG. 3 similarly to step S2. At this time, the neutralizing solution is supplied to the application unit 15. When the applicator 11 shown in FIG. 3 is used, in step S9 and step S10, the application unit 15 in which the neutralization treatment liquid is supplied to the surface of the part PR1 and the surface of the part PR2, that is, the surface of the interior material 4. The bleaching solution is applied by the applicator 11 including

  When the applicator 11 shown in FIG. 3 is used, as shown in FIG. 5, the first neutralization process in step S9 preferably includes the first extension process in step S11 and the second extension process in step S12. And a process. In the following, an example in which the first neutralization processing step of step S9 includes the first stretching processing step of step S11 and the second stretching processing step of step S12 will be described as an example. The second neutralization processing step may include a first stretching processing step in step S11 and a second stretching processing step in step S12.

  In such a case, in the first stretching process in step S11, the application unit 15 is pressed against the surface of the interior material 4 at a certain position in the vertical direction as indicated by the locus AR1 of FIG. The application tool 11 (see FIG. 3) is slid in the left-right direction, and the stretching process of extending the neutralizing solution in the left-right direction on the surface of the interior material 4 is repeated while changing the position in the up-down direction. Apply neutralizing solution on the surface.

  Preferably, in the second stretching process in step S12, the application unit 15 is pressed against the surface of the interior material 4 at a certain position in the horizontal direction as indicated by the locus AR2 of FIG. Then, the applicator 11 (see FIG. 3) is slid in the vertical direction, and the stretching process in which the neutralizing liquid is stretched in the vertical direction on the surface of the interior material 4 is repeated while changing the position in the horizontal direction. A neutralizing solution is applied to the surface.

  That is, by performing Step S11 and Step S12, the applicator 11 can be slid in a vertical and horizontal grid pattern, and the region to which the neutralizing liquid is applied and the neutralizing liquid when the applicator 11 slides. It is possible to prevent the boundary between the region to which no coating is applied from being identified. Therefore, the color of the surface of the interior material 4 after the cleaning treatment can be finished more uniformly.

  In the cleaning process of step S6, after performing neutralization by performing step S7, physical cleaning is performed on the surface of the interior material 4 (step S8 in FIG. 1).

  A specific method for performing the physical cleaning process in step S8 is not particularly limited. For example, brushing (physical cleaning) can be performed on the surface of the interior material 4 on which the cleaning liquid has been sprayed. This brushing is preferably carried out after a period of several minutes to several hours after spraying the cleaning treatment liquid. At this time, it is preferable that a cloth or the like that absorbs water well be laid on the entire floor in advance so that water does not leak under the floor.

  Alternatively, as a specific method in step S8, instead of brushing, for example, physical cleaning is performed by wiping off cloths such as towels on a mop with a flat contact surface and wiping off dirt and detergent. Also good. In particular, in a Japanese-style room or the like, a decorative board having a surface formed of paper is used as the interior material 4 instead of an interior cloth. In such a case, brushing is not preferable, and the contact surface is flat. It is preferable to wipe off dirt and detergent using a stick-type mop and towel. In such a case, step S6 includes step S8 of wiping off moisture on the surface of the interior material 4 after step S7.

  In the cleaning process in step S6, a water rinsing process may be performed on the surface of the interior material that has been brushed. Thereby, the cleaning treatment liquid adhering to the surface of the interior material (interior cloth) 4 is removed.

  In the cleaning treatment step of step S6, a stain remover containing a water-soluble solvent and a second bleaching agent may be applied (sprayed) to the surface of the interior material that has been subjected to the water rinsing treatment. Specifically, a stain remover containing a water-soluble solvent and a second bleaching agent may be used, and the water-soluble solvent and the second bleaching agent may be applied (sprayed) independently.

  As a water-soluble solvent, it penetrates into the interior cloth (especially in the case of vinyl chloride cloth) and raises dirt, so that it does not damage the interior cloth, such as methyl ether, ethyl ether, butyl ether, Methylene glycol, ethylene glycol, butylene glycol or the like can be used. For removing local stains, an aromatic organic solvent such as xylene is effective.

  As the second bleaching agent, an oxidizing bleaching agent, for example, a hydrogen peroxide 1-35% aqueous solution, a sodium peroxide 1-20% aqueous solution, a sodium hypochlorite effective chlorine 1-12% aqueous solution, or the like is effective. Among them, a chlorine bleaching agent having a strong bleaching power produces a bleaching effect in a short time, and therefore has good workability in terms of time. When stubbornly removing stains due to static electricity, heat traces, traces of things, etc., it is preferable to repeat the stain removal with a chlorine bleach. In order to shorten the working time, it is preferable to perform a decoloring treatment under use conditions in which the chlorine bleach is made acidic with an inorganic or organic acidic substance. In order to avoid rapid decomposition of the chlorine bleach during work, it is desirable to add an organic acidic substance.

  In the cleaning process of step S6, brushing may be further performed on the surface of the interior material 4 on which the stain removal liquid has been dispersed. Then, a water rinsing process may be performed on the surface of the interior material 4 that has been brushed. In such a case, a water rinsing process is performed on the surface of the interior material 4 to which the stain remover is applied. Thereby, the stain removal liquid adhering to the surface of the interior material (cloth for interior) 4 is removed.

  In addition, when the degree of dirt on the surface of the interior material 4 is low, step S5 (replacement cleaning process) is not performed, and step S7 (neutralization process) of step S6 may not be performed. In such a case, the cleaning treatment liquid is applied to the entire surface of the interior material 4 in step S4, and dirt is lifted up on the surface in step S6 and wiped off with a wiping towel.

  If dirt remains, an additional cleaning agent or the like may be mixed with the cleaning liquid used in step S4 in accordance with the degree of dirt remaining to perform the partial cleaning process. After performing the partial cleaning process, water is poured into the spray bottle, water is sprayed on the part subjected to the partial cleaning process, and the dirt and detergent adhering to the surface of the interior material are washed away, and then wiped off with a towel.

  In this way, the dirt of the interior material (interior cloth) 4 made of vinyl chloride, cloth, or the like can be easily removed, and the interior material 4 can be regenerated so as to have a good aesthetic appearance. Moreover, since the replacement of the interior material 4 is unnecessary, no waste is generated. According to such a method for regenerating the interior material, it is possible to completely remove the dirt soaked into the interior material 4. In addition, the interior material 4 is cleaned uniformly.

  The dirt of the interior material 4 includes oil stains, tobacco smoke stains, soot stains, mold stains, dirt due to dirt, stains due to static electricity and heat, stains caused by traces of furniture, and stains with splashes of drinks, ink, etc. There are many other things, such as those with unclear causes. These stains are various such as easy to clean and difficult to clean, but according to the interior material recycling method of the present embodiment, such stains can be easily removed, It can be easily reproduced so as to have a good aesthetic appearance.

  Note that the brushing in step S8 is preferably performed before the cleaning treatment liquid applied to the surface of the interior material is dried, so that the cleaning treatment liquid and dirt can be reliably wiped off. Further, the brushing in step S8 is preferably performed before the stain remover applied to the surface of the interior material is dried, so that the stain remover and dirt can be reliably wiped off.

<First modified example of interior material recycling method>
Next, a method for recycling the interior material according to the first modification of the embodiment will be described. FIG. 8 is a flowchart showing some steps of the interior material recycling method according to the first modification of the embodiment.

  In the first modified example, after the cleaning process of step S6 is performed, a repair process for repairing stains, discoloration, or scratches remaining on the surface of the interior material 4 (see FIG. 2) with a partial cleaning or a repair agent or the like. (Step S21 in FIG. 8).

  In this step S21, for example, in a part of the inner wall 2 (see FIG. 2) on which the surface of the interior material 4 has been cleaned, the interior material 4 is removed to expose the inner wall 2 (FIG. 8). Thereafter, a repair material for repairing the interior material 4 can be attached to the exposed inner wall 2 (step S23 in FIG. 8). Such a method is called patchwork, and repairs small scratches on the interior material 4 or peeling of the interior material 4.

  In some areas of the inner wall 2, the interior material 4 may be in a deficient state such as peeling off. In such a case, by performing step S22 and step S23 of FIG. 8, even if the interior material 4 is missing in a part of the inner wall 2, the inner wall is larger in the area than the area where the interior material 4 is missing. 2, since a repair material can be newly affixed instead of the interior material 4, an excellent finish can be obtained so as to exhibit a better aesthetic appearance.

  In step S21, for example, after performing step S23, the surface of the interior material 4 subjected to the cleaning process can be coated (step S24 in FIG. 8).

  In step S24, for example, a water-based paint having a color such as white or ivory is applied. Such a method is called make-up or touch-up.

  An aqueous paint including a flex emulsion paint can be used as the aqueous paint. The flex emulsion paint is a synthetic resin emulsion paint (for example, acrylic type) having improved adhesion to the interior material 4 such as interior cloth (for example, vinyl cloth), wallpaper, gypsum board, and Gyptone (registered trademark). Even when it is applied very thinly on the surface of the material 4, a portion where the coating film is interrupted is not formed on the surface of the interior material 4.

  When the surface of the interior material 4 is strongly soiled, the soil may not be easily removed in a part of the surface of the interior material 4 even if the cleaning process of step S6 is performed.

  On the other hand, in the first modified example, step S21 is performed after the cleaning process in step S6. Thus, even if the cleaning process of step S6 is performed, even if the dirt cannot be removed in a part of the surface of the interior material 4, the surface of the interior material 4 is coated in the area where the dirt remains. It is possible to obtain an excellent finish so that the interior material is colored with dirt and has a better aesthetic appearance. That is, a small range of stains or discoloration can be concealed with a touch-up coat, and the appearance can be adjusted.

  FIG. 8 illustrates an example in which step S24 is performed after step S22 and step S23 are performed. However, after step S6 is performed, step S24 is performed before step S22 and step S23 are performed. Also good.

  In step S24, when the surface of the interior material 4 is coated in a region where dirt remains, it is preferable to repeat the coating and drying alternately and divide the coating into several times. As a result, the color of the area where the dirt remains can be gradually brought close to the color of the area where the dirt does not remain, so that the interior material 4 can be reproduced so as to exhibit a good aesthetic appearance.

  In step S24, a paint mixed with a repair agent may be applied. Penet (registered trademark) or the like can be used as a repair agent. As a result, even if there is a scratch or the like in a part of the surface of the interior material 4, the interior material is further made inconspicuous by applying the coating to the surface of the interior material in the region where the scratch is present. An excellent finish can be obtained so as to exhibit a good aesthetic appearance.

  In step S24, the discolored region of the surface of the interior material 4 may be repaired using a makeup coat that is liquid at the time of application but becomes powder when dried. In such a case, a liquid makeup coat is applied to the discolored region of the surface of the interior material 4 with a pad. Even if the makeup coat is applied to an area of the interior material 4 that is not discolored, the surface of the interior material 4 is less likely to change. The boundary between parts is difficult to see. Therefore, it is possible to easily repair only a part of the surface of the interior material 4.

  Thus, in step S21, after the entire surface of the interior material 4 is subjected to a cleaning process, dirt, stains, scratches, or the like remaining in a part of the surface of the interior material 4 are repaired. Therefore, in step S21, in addition to applying the coating in step S24 described above, partial dirt can be cleaned by performing special partial cleaning.

  As the partial cleaning, the soil that can be decomposed can be decomposed with an oxygen-based bleach or the like. At this time, for example, by applying an oxygen-based bleach to a part of the surface of the interior material 4 and warming a region of the surface of the interior material 4 to which the oxygen-based bleach is applied with a dryer, Oxygen bleach can be activated to break up stains or stains. Further, for example, a chlorine bleach is applied to a part of the surface of the interior material 4, and then an oxygen bleach is applied to a region of the surface of the interior material 4 to which the chlorine bleach is applied. The agent can be applied again. Thereby, neutralization of a bleaching agent is performed and a bleaching agent is activated. Alternatively, dirt that cannot be decomposed can be removed by washing with alkali and a surfactant and then washing with water.

<Second Modification of Interior Material Recycling Method>
Next, a method for recycling the interior material according to the second modification of the embodiment will be described. FIG. 9 is a flowchart showing some steps of the interior material recycling method according to the second modification of the embodiment.

  The interior material regeneration method according to the second modification is different from the interior material regeneration method according to the embodiment in that the preceding bleaching treatment is not performed. About other points, it is the same as that of the recycling method of the interior material of the embodiment. In addition, you may combine this 2nd modification and the reproduction | regeneration method of the interior material of the 1st modification of embodiment.

  In the interior material regeneration process of the second modified example, the same step as Step S1 in FIG. 1 (Step S1 in FIG. 9) is performed first, as in the interior material regeneration process in the embodiment. The dust on the surface of the material 4 (see FIG. 2), that is, the dust adhering to the surface of the interior material 4 is removed, and the degree of dirt on the surface of the interior material 4 is evaluated.

  On the other hand, in the interior material regeneration process of the second modified example, unlike the interior material regeneration process of the embodiment, after performing step S1 of FIG. 9, the bleaching treatment liquid is applied to the surface of the interior material 4. The step, that is, the step corresponding to step S2 in FIG. 1 is not performed. Then, in the interior material regeneration process of the second modification, unlike the interior material regeneration process of the embodiment, after performing step S1 in FIG. 9, the same steps as in step S3 in FIG. 1 (FIG. 9). Step S3) is performed to prepare a cleaning treatment liquid according to the degree of contamination of the surface of the interior material 4, and then the same step as Step S4 in FIG. 1 (Step S4 in FIG. 9) is performed. A cleaning treatment liquid is applied to the surface of 4.

  Thereafter, in the interior material regeneration process of the second modified example, similar to the interior material regeneration process of the embodiment, steps similar to steps S5 and S6 in FIG. 1 (steps S5 and S6 in FIG. 9). ), And a neutralization treatment liquid that neutralizes the cleaning treatment liquid on the surface of the interior material 4 by subjecting the interior material 4 to a standing washing treatment while the washing treatment liquid is applied to the surface of the interior material 4. Is applied, and the surface of the interior material is cleaned.

  In the interior material regeneration method of the second modified example, since the preceding bleaching process is not performed, a portion of the interior material 4 having a high surface contamination level and a portion of the interior material 4 having a low surface contamination level are mixed. Even so, the effect of regenerating the interior material so as to exhibit a good aesthetic appearance is slightly smaller than that of the interior material regeneration method of the embodiment.

  However, in the method for regenerating the interior material of the second modification, the cleaning treatment liquid is applied to the surface of the interior material 4 until the adhering cleaning process is performed and the dirt attached to the surface of the interior material 4 is decomposed. So that even when the surface of the interior material 4 has a high degree of dirt, the interior material 4 can easily remove the dirt adhering to the surface of the interior material 4 and exhibit a good aesthetic appearance. 4 can be played. In addition, it is possible to easily remove dirt adhering to the surface of the interior material 4, and the alkaline cleaning treatment liquid applied to the surface of the interior material 4 can be neutralized by the neutralization treatment liquid. Therefore, it is possible to easily remove the alkaline cleaning liquid along with the dirt.

<Third Modification of Interior Material Recycling Method>
Next, the interior material recycling method according to the third modification of the embodiment will be described. FIG. 10 is a flowchart showing some steps of the interior material recycling method according to the third modification of the embodiment.

  The interior material regeneration method of the third modification is different from the interior material regeneration method of the embodiment in that no additional cleaning treatment is performed. About other points, it is the same as that of the recycling method of the interior material of the embodiment. In addition, you may combine this 3rd modification and the reproduction | regeneration method of the interior material of the 1st modification of embodiment.

  In the interior material regeneration process of the third modification, as in the interior material regeneration process of the embodiment, first, steps similar to steps S1 and S2 in FIG. 1 (steps S1 and S2 in FIG. 10). ) To remove the dust on the surface of the interior material 4 (see FIG. 2), that is, the dust adhering to the surface of the interior material 4, and evaluate the degree of dirt on the surface of the interior material 4 to determine the portion PR1 (FIG. 2). The bleaching solution is applied to the surface of the reference material, i.e., the surface of the interior material 4. In the interior material regeneration process of the third modified example, as in the interior material regeneration process of the embodiment, next, the same steps as steps S3 and S4 in FIG. 1 (steps S3 and step in FIG. 10). S4) is performed, and a cleaning treatment liquid is prepared according to the degree of contamination on the surface of the interior material 4, and the cleaning treatment liquid is applied to the surface of the part PR1 and the surface of the part PR2, that is, the surface of the interior material 4. .

  On the other hand, in the interior material regeneration process of the third modification, unlike the interior material regeneration process of the embodiment, after performing step S4 of FIG. 10, the cleaning treatment liquid is applied to the surface of the interior material 4. In this state, the step of performing the standing cleaning process in which the interior material 4 is left untreated, that is, the step corresponding to step S5 in FIG. 1 is not performed. Then, in the interior material regeneration process of the third modified example, unlike the interior material regeneration process of the embodiment, immediately after performing step S4 of FIG. 10 step S6) is performed, and a neutralization treatment liquid for neutralizing the cleaning treatment liquid is applied to the surface of the portion PR1 and the surface of the portion PR2, that is, the surface of the interior material 4, and the surface of the interior material 4 is coated. Apply cleaning treatment.

  In the interior material regeneration method of the third modified example, no additional cleaning treatment is performed, so that the interior material can be regenerated so that it has a good aesthetic appearance even when the entire surface of the interior material 4 is highly dirty. The effect that can be achieved is slightly smaller than the process of recycling the interior material of the embodiment.

  However, in the interior material regeneration method according to the third modified example, as in the interior material regeneration method of the embodiment, the preceding bleaching process is performed. Even if there is a part of the surface with a low degree of dirt on the surface, the dirt adhering to the surface of the interior material can be easily removed, and the interior material can be regenerated so that it has a good aesthetic appearance. .

  As mentioned above, the invention made by the present inventor has been specifically described based on the embodiment. However, the present invention is not limited to the embodiment, and various modifications can be made without departing from the scope of the invention. Needless to say.

  Further, the above-described embodiment has been described in detail for easy understanding of the present invention, and is not necessarily limited to one having all the configurations described. For example, part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. . Moreover, you may add, delete, and replace another structure about a part of structure of each embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Ceiling, 2 ... Inner wall, 3 ... Floor, 4 ... Interior material, 11 ... Applicator, 12 ... Pattern part, 13 ... Universal joint, 14 ... Base part, 14a ... Surface part, 15 ... Application part, AR1, AR2 ... Locus, PR1, PR2 ... part.

Claims (4)

In the method of recycling interior materials that recycle interior materials attached to the ceiling or inner wall,
(A) applying an alkaline cleaning liquid to the surface of the interior material;
(B) after the step (a), leaving the interior material in a state where the cleaning treatment liquid is applied to the surface of the interior material;
(C) After the step (b), a step of applying a first neutralization treatment liquid for neutralizing the washing treatment liquid to the surface of the interior material and subjecting the surface of the interior material to a washing treatment;
Have
The degree of dirt on the surface of the first part of the interior material is higher than the degree of dirt on the surface of the second part different from the first part in the interior material,
The regeneration method of the interior material is as follows:
(D) before the step (a), applying a bleaching treatment liquid to the surface of the first part;
Have
In the step (a), the cleaning treatment liquid is applied to the surface of the first part and the surface of the second part,
In the step (c), the first neutralization treatment liquid is applied to the surface of the first part and the surface of the second part, and the surface of the first part and the surface of the second part. The cleaning process of
The second part is adjacent to the first part;
In the step (d), the bleaching solution is extended from the surface of the first part to the surface of the second part,
The first part and the second part are attached to the inner wall,
The second portion is disposed below the first portion;
(E) after the step (c), a step of coating the surface of the interior material that has been subjected to the cleaning treatment;
Have
In the step (e), a paint mixed with a repair agent is applied,
(F) removing the interior material and exposing the inner wall in a first region of the inner wall where the cleaning treatment has been performed on the surface of the interior material;
(G) a step of attaching a repair material for repairing the interior material to the exposed inner wall after the step (f);
A method for recycling interior material. In the regeneration method of the interior material according to claim 1,
In the step (b), the interior material is regenerated by leaving the interior material for 1 to 24 hours in a state where the cleaning treatment liquid is applied to the surface of the interior material. In the method of recycling interior materials that recycle interior materials attached to the ceiling or inner wall,
(A) applying an alkaline cleaning liquid to the surface of the interior material;
(B) after the step (a), leaving the interior material in a state where the cleaning treatment liquid is applied to the surface of the interior material;
(C) After the step (b), a step of applying a first neutralization treatment liquid for neutralizing the washing treatment liquid to the surface of the interior material and subjecting the surface of the interior material to a washing treatment;
Have
The step (c) includes:
(C1) After the step (b), applying the first neutralization treatment liquid to the surface of the interior material,
(C2) After the step (c1), a step of applying a second neutralization treatment liquid that neutralizes the cleaning treatment solution to the surface of the interior material to which the first neutralization treatment solution has been applied;
(C3) After the step (c2), a step of wiping off moisture on the surface of the interior material,
Including
(E) after the step (c), a step of coating the surface of the interior material that has been subjected to the cleaning treatment;
Have
In the step (e), a paint mixed with a repair agent is applied,
(F) removing the interior material and exposing the inner wall in a first region of the inner wall where the cleaning treatment has been performed on the surface of the interior material;
(G) a step of attaching a repair material for repairing the interior material to the exposed inner wall after the step (f);
A method for recycling interior material. In the method of recycling interior materials that recycle interior materials attached to the ceiling or inner wall,
The degree of dirt on the surface of the first part of the interior material is higher than the degree of dirt on the surface of the second part different from the first part in the interior material,
The regeneration method of the interior material is as follows:
(A) applying a bleaching solution to the surface of the first part;
(B) After the step (a), applying an alkaline cleaning treatment liquid to the surface of the first portion and the surface of the second portion;
(C) After the step (b), a neutralization treatment solution for neutralizing the cleaning treatment solution is applied to the surface of the first portion and the surface of the second portion, and the surface of the first portion And a step of cleaning the surface of the second part,
Have
The second part is adjacent to the first part;
In the step (a), the bleaching solution is extended from the surface of the first part to the surface of the second part,
The first part and the second part are attached to the inner wall,
The second portion is disposed below the first portion;
(E) after the step (c), a step of coating the surface of the interior material that has been subjected to the cleaning treatment;
Have
In the step (e), a paint mixed with a repair agent is applied,
(F) removing the interior material and exposing the inner wall in a first region of the inner wall where the cleaning treatment has been performed on the surface of the interior material;
(G) a step of attaching a repair material for repairing the interior material to the exposed inner wall after the step (f);
A method for recycling interior material.