JPH0376900A - Aqueous dispersion detergent - Google Patents

Abstract

PURPOSE:To obtain the subject detergent excellent in detergency, free from remaining water on the surface of a washed material after washing and capable of abandoning to a water closet by impregnating a crepe paper produced by papermaking a raw material of a specified composition with an aqueous lower alcohol solution as a detergent. CONSTITUTION:A raw material containing (A) 98-94wt.% paper stock composed of wood pulp and viscose rayon, (B) 2-6wt.% binder consisting of PVA fiber soluble in a hot water of 50-60 deg.C and (C) a stabilizing agent consisting of an epoxy-modified polyamidopolyamine resin in an amount of 0.005-0.02wt.% based on the component (A) is subjected to papermaking. The resultant crepe paper is impregnated with an aqueous alcohol (preferably ethanol or isopropyl alcohol) solution as a detergent, thus obtaining the objective detergent. The above- mentioned component (C) is recommendably obtained by reacting epichlorohydrin with a secondary amine-containing polyamide.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a water-dispersible cleaning material that has high cleaning ability and can be disposed of in a flush toilet or the like after cleaning.

<Prior art> Floors in flush toilets in department stores and various public facilities,
Wall surfaces or toilet bowls are easily soiled by an unspecified number of users, and soiling in areas that come into direct contact with the skin, such as the toilet seat, gives an unbearable discomfort and an unsanitary impression.

Conventionally, the above-mentioned flush toilets have been cleaned by contractors using cleaning tools such as brushes and cleaning agents before and after the operation of department stores and facilities, but this is a labor-intensive and time-consuming task for users to perform directly. .

Therefore, an easy and quick way for users to clean is to use the toilet paper they always have on hand, but since toilet paper is dry, it is difficult to remove stains. Even if it is impregnated with water, it is difficult to remove oil and other stains, and furthermore, it becomes necessary to wipe off water remaining on the toilet seat etc. after cleaning.

On the other hand, a toilet equipped with a device that does not require any cleaning work as described above and can intermittently supply toilet seat sheet material has been put into practical use, but its popularity has declined due to the high cost of the device. is low.

Further, a disposable water-dispersible sheet material for a toilet seat has been proposed, which is always kept in a flush toilet and can be placed on the toilet bowl by the user as needed. However, this sheet material for a toilet seat has a large area that covers the entire surface of the toilet seat, so it is not economical, and it is difficult to use because it shifts when placed on the toilet seat.

<Problems to be Solved by the Invention> As mentioned above, toilet seat sheets have problems from an economical point of view, and since they are not related to floors, walls, etc. other than the toilet seat, cleaning materials are still needed for cleaning floors, walls, etc. It requires

Therefore, in the cleaning materials for flush toilets as described above,
There is a need for a cleaning material that has sufficient cleaning properties, does not leave any water on the surface to be cleaned after cleaning, and is easily dispersed in water so that it can be disposed of in a flush toilet.

Means for Solving the Problems> The present invention was proposed in view of the above, and uses a paper stock made of wood pulp and viscose rayon with a 98.0 to 94.
0% by weight, 2.0% to 6.0% by weight of a binder which is polyvinyl alcohol fiber soluble in hot water of 50 to 60°C, and a stability maintenance agent which is a polyamide polyamine epoxy modified resin to the above paper stock. The present invention relates to a water-dispersible cleaning material, characterized in that crepe paper made from .005 to 0.02 parts by weight is impregnated with a cleaning agent consisting of an aqueous solution of lower alcohol.

As described above, the paper stock in the present invention may be wood pulp alone or wood pulp mixed with viscose rayon to improve texture and feel.

The mixing ratio of wood pulp and viscose rayon is 10
A range from 0:0 to about 30:70 is suitable because it provides good paper formability and, as mentioned above, good texture and feel.

Furthermore, the polyvinyl alcohol fiber used as a binder for crepe paper in the present invention is not particularly limited in terms of degree of polymerization and degree of saponification, but it is a fibrous fiber that is insoluble in water at a temperature of 50°C or less. .

Furthermore, to improve the stability and durability of wet paper over time,
A polyamide polyamine epoxy modified resin is added as a stability maintaining agent.

The polyamide polyamine epoxy modified resin mentioned above is a cationic uncured thermosetting resin, which is a water-soluble polymer reaction product of epichlorohydrin and a polyamide having a secondary amine group. This resin is used as a wet strength agent for paper, and for example, there is a product "Kamain 557HJ" manufactured by Dick Vercules Co., Ltd.

The crepe paper in the present invention has the above-mentioned paper stock of 98.0
-94.0% by weight, 2.0-6.0% by weight of binder, and 0.005% of the above-mentioned stability maintenance agent based on the paper stock.
~0.02 parts by weight are mixed and made into paper.

In each of the above blending amounts, the polyvinyl alcohol fiber as the binder is alcohol resistant, but partially swells in water at room temperature. Therefore, if the amount of polyvinyl alcohol fibers as a binder is less than 2.0% by weight, the strength of the crepe paper will be insufficient when impregnated with an aqueous alcohol solution as a detergent. On the other hand, if the amount of pie-under polyvinyl alcohol fibers is more than 6.0% by weight, peeling with a dryer will be difficult during crepe paper making, and a sticky feeling will likely occur during washing.

In addition, the polyamide polyamine epoxy modified resin, which is a stabilizing agent, is mixed in to give crepe paper water resistance, but if the amount mixed is less than 0.005 parts by weight, the water resistance strength is insufficient and the crepe paper becomes Poor stability over time
If the amount is more than 0.02 parts by weight, the water resistance will be too high and the water dispersibility will be poor when disposed of in water.

In the present invention, crepe paper is made by mixing the above-mentioned components, and the crepe paper is impregnated with a cleaning agent to impart cleaning and sterilization properties. It is an aqueous solution of alcohol with an alcohol concentration of 50% by weight or more.

Examples of the lower alcohols mentioned above include methanol, ethanol, isopropyl alcohol, n-butanol, etc., and ethanol and isopropyl alcohol, which have an appropriate volatilization rate, can be used particularly effectively.

In addition, if the alcohol concentration of the cleaning agent is less than 50% by weight, the strength of the water-dispersible cleaning material of the present invention will not be sufficient, resulting in a sticky feeling during cleaning, and the cleaning agent remaining on the surface to be cleaned after cleaning. Drying slows down.

As mentioned above, the cleaning agent is composed of lower alcohol and water, but in order to improve cleaning performance and quick drying properties, it may be possible to add, for example, highly volatile hydrocarbons or a small amount of surfactant. .

Furthermore, since the lower alcohol in the above-mentioned cleaning agent has high volatility, it evaporates more quickly than the surface to be cleaned after cleaning. However, in order to prevent the cleaning agent from volatilizing from the cleaning material before use, it is desirable to store the cleaning material of the present invention in a package with extremely low air permeability, for example, so that it can be stored for a long period of time.

The water-dispersible cleaning material of the present invention housed in a package with low air permeability as described above can be used as a portable cleaning tool or as a cleaning tool that is always kept in a flush toilet. When using a flush toilet in a department store or public facility, you can take out the cleaning material from the package and wash the toilet seat etc. easily and thoroughly.Furthermore, it dries quickly after use, making it easy to clean after washing. The material can be disposed of in the toilet bowl.

<Example> Examples of the present invention will be shown below.

Examples 1-3 Wood pulp N-BKP (softwood bleached kraft pulp), 1.5 denier, 5 mm length of viscose rayon, and 2 denier, 3 mm length of polyvinyl alcohol soluble in water at 50-60°C Crepe paper was made using a cylinder Yankee machine by mixing the fibers with the paper stock composition shown in Table 1, and adding 0.02% by weight of each polyamide polyamine epoxy resin to the paper stock. . At this time, the crepe was applied to the paper using a doctor blade on a Yankee dryer.

Each of the crepe papers produced as described above was cut into individual sheet materials.

Next, as a cleaning agent, an alcohol aqueous solution containing ethyl alcohol and isopropyl alcohol in a weight ratio of 5:1 and a total concentration of both alcohols of 75% by weight was prepared, and the crepe paper described above was prepared. A cleaning material was prepared by impregnating crepe paper with a cleaning agent in an amount three times the weight of crepe paper.

Comparative Example 1 Wood pulp N-BKP Same as Examples 1 to 3 except that 0.02% by weight of polyamide polyamine epoxy resin was added to 100% paper stock was used as the raw material.
A sheet of crepe paper was prepared and impregnated with a cleaning agent to be used as a cleaning material.

Comparative Example 2 Addition amount of polyamide polyamine epoxy resin was 0.05
A crepe paper sheet was prepared in the same manner as in Comparative Example 1, except that the crepe paper sheets were impregnated with a cleaning agent to obtain a cleaning material.

Comparative example 3 Wood pulp N-BKP 94. ．． 0% and l denier.

A sheet material for each leaf of crepe paper was produced in the same manner as in Comparative Example 1, except that a paper material having a length of 3 mm and consisting of 6.0% polyvinyl alcohol fibers dissolved in water at 70°C was used. , impregnated with cleaning agent? 9cl was selected as a contender.

Comparative example 4 Wood pulp N-BKP 92.0% and 2 denier.

A sheet material of each leaf of crepe paper was prepared in the same manner as in Comparative Example 1, except that a paper material having a length of 30 mm and consisting of 8.0% polyvinyl alcohol fibers soluble in water at 50 to 60 °C was used. It was prepared and impregnated with a cleaning agent to be used as a cleaning material.

The cleaning materials of Examples 1 to 3 and Comparative Examples 1 to 4 described above were tested based on evaluation methods 1 to 2 shown below, and the results are shown in Table 1.

(Evaluation method 1) (1) Tensile strength test The tensile strength of the cleaning material was measured according to JIS P8135, and the results are shown in Table 1.

■Water dispersibility test A square piece of crepe paper (test piece) with side length of Loam and a rotor are placed in a 1°C beaker containing water at a temperature of 20°C, and stirred with a magnetic cooler. The time taken for the cleaning material to become fine pieces and disperse in water was measured, and the results are shown in Table 1.

In addition, in this method, the time required to reach dispersion is 100
Make sure that it is well dispersed in a flush toilet within seconds.

■Cleanability test a) Ease of removing stains Items that could be easily cleaned were rated as ○ Items that did not remove stains even after being lightly wiped were rated as X. The results are shown in Table 1.

b) Dryness of the cleaning surface After washing, The cleaning surface was dry. The cleaning surface was wet. The results are shown in Table 1.

C) Stickiness of the cleaning surface When cleaning, Use crepe paper that doesn't feel sticky. Use crepe paper that has a sticky feel. The results are shown in Table 1.

○ × ○ Note) Polyvinyl alcohol fiber (1) Vinyl alcohol table fiber (]I) Table = Polyvinyl alcohol fiber that dissolves in water at 50 to 60°C; IJ vinyl alcohol fiber that dissolves in water at 70°C or higher As is clear from Table 1, Examples 1 to 3 have sufficient strength even when impregnated with an aqueous alcohol solution as a detergent, and have good water dispersibility and cleanability.

On the other hand, as shown in Comparative Example 1, crepe paper without polyvinyl alcohol fibers had insufficient strength when impregnated with a detergent. In addition, as shown in Comparative Example 2.3, the amount of polyamide polyamine epoxy modified resin added was increased to give crepe paper water resistance strength, and polyvinyl alcohol fibers whose dissolution temperature in water was higher than 60°C were used. In this case, the water dispersibility was poor.

Furthermore, when the amount of polyvinyl alcohol fibers dissolved in water at 60° C. exceeded 6.0% as in Comparative Example 4, a sticky feeling occurred during washing.

Examples 4 to 6 Each sheet of crepe paper was produced in the same manner as in Examples 1 to 3 using the paper material formulation and the amount of polyamide polyamine epoxy modified resin shown in Table 2.

Next, as a cleaning agent, an alcohol aqueous solution was prepared so that the mixing ratio of ethyl alcohol and isopropyl alcohol was 5:l in terms of weight ratio, and the alcohol concentration was 60% by weight. It was impregnated with three times the amount of cleaning agent to prepare a cleaning material.

Comparative example 5 Wood pulp N-BKP 94.0% and 2 denier.

Same as Examples 1 to 3 except that a paper stock with a length of 3 mm and composed of 6.0% polyvinyl alcohol fibers that dissolves in water at 50 to 60 ° C. (no polyamide polyamine epoxy modified resin was added) was used. Each sheet of crepe paper was prepared in the same manner as in Examples 4 to 6, and impregnated with a cleaning agent to obtain a cleaning material.

Comparative Example 6 Addition amount of polyamide polyamine epoxy resin was 0.05
A crepe paper sheet was prepared in the same manner as in Comparative Example 5, except that the crepe paper sheet material was impregnated with a cleaning agent to obtain a cleaning material.

The cleaning materials of Examples 4 to 6 and Comparative Examples 5 and 6 described above were tested based on the evaluation method (1) shown below and the evaluation methods (2) to (2) described above, and the results are shown in Table 2.

(Evaluation method 2) ■Temporal stability test The cleaning material was placed in a sealed polypropylene container, left in a constant temperature bath (45°C) for 28 days, and then heated.
The tensile strength of the cleaning material was measured according to JIS P8135, and the results are shown in Table 2.

Note) Polyvinyl alcohol fiber (I) Table 2: Polyvinyl alcohol fiber soluble in water at 50 to 60°C As is clear from Table 2, Examples 4 to 6 have good stability over time, water dispersibility, and washability. It is in good condition.

On the other hand, in Comparative Example 5 in which no polyamide polyamine epoxy modified resin was added, changes over time were clearly observed. Furthermore, in Comparative Example 5 in which no polyamide polyamine epoxy modified resin was added, deterioration over time was clearly observed. In addition, 0.0% polyamide polyamine epoxy modified resin was added.
In Comparative Example 6, in which more than 0.02% was added, the stability over time was good, but the water dispersibility was poor.

Example 7 Each sheet of crepe paper was produced in the same manner as in Example 6.

Next, as a cleaning agent, an alcohol aqueous solution was adjusted so that the mixing ratio of ethyl alcohol and isopropyl alcohol was 5:1 by weight and the alcohol concentration was 50% by weight, and the crepe paper weight was applied to the crepe paper described above. It was impregnated with three times the amount of cleaning agent to prepare a cleaning material.

Example 8 A crepe paper sheet material was produced in the same manner as in Example 3.

Next, as a cleaning agent, an alcohol aqueous solution was prepared so that the mixing ratio of ethyl alcohol and isopropyl alcohol was 5:1 in terms of weight ratio, and the alcohol concentration was 75% by weight. It was impregnated with three times the amount of cleaning agent to prepare a cleaning material.

Example 9 Each sheet of crepe paper was produced in the same manner as in Example 6.

Next, as a cleaning agent, an alcohol aqueous solution was adjusted so that the mixing ratio of ethyl alcohol and isopropyl alcohol was 5:1 by weight and the alcohol concentration was 90% by weight, and the crepe paper weight was applied to the crepe paper described above. It was impregnated with three times the amount of cleaning agent to prepare a cleaning material.

Comparative Example 7 A crepe paper sheet material was produced in the same manner as in Example 6.

Next, as a cleaning agent, an alcohol aqueous solution was adjusted so that the mixing ratio of ethyl alcohol and isopropyl alcohol was 5:1 by weight and the alcohol concentration was 40% by weight, and the crepe paper weight was applied to the crepe paper described above. It was impregnated with three times the amount of cleaning agent to prepare a cleaning material.

The cleaning materials of Examples 7 to 9 and Comparative Example 7 described above were tested based on the evaluation methods ■ to ■ described above, and the results are shown in Table 3.
It was shown to.

Note) Frivinyl alcohol ffl fiber (1) Table 3 = Polyvinyl alcohol fiber soluble in water at 50 to 60°C As is clear from Table 3, Examples 7 to 9 have sufficient strength when used as a detergent, Both water dispersibility and washability are good.

On the other hand, in Comparative Example 4, the strength when used as a cleaning agent was low, and the cleaning performance was not sufficient.

<Effects of the Invention> As explained above, the water-dispersible cleaning material of the present invention can be easily cleaned by wiping and sterilized with a lower alcohol aqueous solution, and can clean dry and clean surfaces. It is something that can be obtained.

In addition, the strength of the cleaning material used in this case is high, allowing stable cleaning work to be performed, and there is no need to separately wipe off moisture.

Furthermore, the cleaning material after use can be disposed of in water and flushed into the toilet bowl of a flush toilet or the like.

Therefore, the water-dispersible cleaning material of the present invention has extremely high practical value, especially for cleaning toilet seats in flush toilets.

Claims (2)

[Claims] (1) 98.0 to 94.0% by weight of paper stock made of wood pulp and viscose rayon, and 2.0 to 6.0% by weight of binder, which is polyvinyl alcohol fiber that dissolves in hot water at 50 to 60°C. and a stability maintaining agent, which is a polyamide polyamine epoxy modified resin, to the above paper stock at a rate of 0.0
1. A water-dispersible cleaning material characterized in that crepe paper made from 0.05 to 0.02 parts by weight is impregnated with a cleaning agent consisting of an aqueous solution of lower alcohol. (2) The cleaning agent consists of ethyl alcohol or isopropyl alcohol, and its alcohol concentration is 50% by weight.
The water-dispersible cleaning material according to claim 1, which is the above.