JPH09255992A - Powdered detergent for carpet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the cleaning and dust-collecting properties by using chips obtained by cutting a cellulose sponge. SOLUTION: A starting material for a cellulose sponge obtained from woods or short trees and plants is dissolved to obtain a pulp, which is treated with a sodium hydroxide soln. Then carbon disulfide, sodium hydroxide or the like is added to the treated pulp to obtain a viscose, which is foamed by mixing it with a foaming agent such as sodium sulfite, and the obtained foam is solidified. The sodified foam is washed with a softening agent, bleaching agent, etc., and cut into chips, and the chips are washed with water to remove the foaming agent and used. The starting materials for the detergent are a nonionic surfactant, an anionic surfactant and an amphoteric surfactant, and the solvent is a hydrophilic or lipophilic solvent, while the basic compound is a weakly alkaline, highly safe amine compound which is volatile and which does not remain on the carpet. 100 parts of the cellulose sponge chips are thoroughly impregnated with 10 to 50 parts of the powdered detergent to obtain the detergent for carpet.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powdery detergent capable of effectively removing stains on textiles such as carpets, mats, main floors, chemical floors and tatami mats.

[0002]

2. Description of the Related Art Carpets have a unique walking feeling, heat retention,
It has been installed on many floors because it has been accepted by people since ancient times. However, on the other hand, woven carpets are used for other hard floors, such as chemical tile floors, wooden floors,
In addition, it has a property of being easily soiled as compared with a stone floor and the like, and is easily trapped and accumulated in the carpet fabric. Therefore, cleaning a hard floor or higher is required to keep the carpet clean at all times. As a typical carpet cleaning method, a shampoo cleaning method has been conventionally used. In this cleaning method, a liquid detergent mainly containing an anionic surfactant is used and cleaning is performed with a carpet shampooing machine. This method is excellent in cleaning power, but it requires a lot of water to dry the carpet for a long time, and after cleaning, it cannot walk for more than several hours. In addition, since the carpet is wetted more than necessary, the problem of shrinkage of the carpet, the cleaning liquid soaking into the carpet base cloth, wetting the jute on the lining, the lignin contained in the jute elutes on the carpet surface during drying, and becomes brownish brown. It also causes the formation of spots. Furthermore, in office buildings and the like which have been made intelligent in recent years, various OA devices are installed, but tile carpets of 50 cm square are usually laid in such places. Also, under the carpet layer, there is an electric wiring (flat cable) for OA equipment and a full-scale double floor structure (free access floor). If a shampoo cleaning method that uses a large amount of cleaning liquid is used in such a place, a problem arises in that excess cleaning liquid stains through the gaps in the tile carpet to the location of the electrical wiring, causing a short circuit in electricity. Therefore, the powder method has been developed as an alternative technique to the shampoo cleaning method. In this method, the powder impregnated with the cleaning agent is sprayed on the carpet, the carpet surface is washed using a dedicated brushing machine, and the powder that has adsorbed dirt is left to stand and dried, and then the powder is removed using a vacuum cleaner or the like. Is a method of collecting dust and cleaning the carpet. Since this method does not use water unlike the shampoo washing method, the drying property is good, and walking is possible within one hour after washing. In addition, there is no concern that the carpet will shrink or brown stains will occur, and there will be no concern that excess detergent liquid will stain spots on the electrical wiring, thus enabling safer carpet cleaning. As described above, the powder cleaning method itself is a simple and easy cleaning method, and therefore it has been used in many carpet construction sites.
As a powder used in this method, a natural main powder called sawdust has been used, which has a good ability to adsorb dirt and has a certain degree of detergency. However, the particle size of natural wood flour is adjusted to 1000 μ (micron) or less in consideration of its detergency. Also, the wood powder itself is a hard wood,
Moreover, since it has an indeterminate acute-angled shape, even if dust is collected with a vacuum cleaner after cleaning, there is a problem that the powder will not be easily collected because it will be entangled with the carpet fiber and further deforestation will occur. It is becoming a problem, and it is necessary to consider materials other than natural wood flour.

For this reason, various materials other than wood powder have been investigated. For example, a method of using an inorganic borax as a powder is disclosed in JP-A-56-90896. However, in general, inorganic powders are fine particles with a particle size of 100μ or less, so when sprayed, the particles scatter around and contaminate the work environment such as walls, window crows, tables, chairs, furniture and furniture. In addition, there is a problem of safety for the human body such as the worker inhaling fine particles. In addition, after dust collection, more powder than natural wood powder remains, and the remaining inorganic powder is white, which greatly impairs the appearance of the carpet. Further, if the residual inorganic powder is left as it is, there is a problem that dirt and sand are attracted by the subsequent walking and the carpet is contaminated remarkably even though the carpet is washed with moisture. Also, for resin systems other than inorganic powder,
JP-A-57-126900 discloses a method of using a particulate aminoformaldehyde resin as a powder, and JP-A-59-161500 discloses a method of using a particulate acetyl cellulose as a powder. However, these powders also have a particle size of 10
Since it is as fine as 1000 microns (μ), it remains on the carpet and causes the same problem as the inorganic powder, which is not preferable. Further, a resin powder that is not a natural product is not desirable from the viewpoint of waste treatment when treating washed powder. In order to solve the residue in the carpet fiber, it is possible to adjust the particle size of the inorganic powder and the resin powder to a size of 1000 microns or more, but the total surface area of the particles is reduced, so The retention of the impregnated detergent component decreases, and the detergent component settles at the bottom of the powder. As a result, it is not possible to maintain a uniform detergency and "cleaning unevenness" occurs, resulting in a satisfactory detergency. become unable. As described above, it is difficult to obtain powders excellent in both cleaning property and dust collecting property with the current wood flour powder, inorganic powder, and resin powder.

[0004]

DISCLOSURE OF THE INVENTION The present invention is to develop a powder excellent in both cleaning property and dust collecting property in powder cleaning used for cleaning carpet.

[0005]

The present inventor has completed the present invention by earnestly researching the above-mentioned problems. That is, the present invention is a powder cleaning agent for carpet, characterized in that, in powder cleaning used for cleaning carpet, chips obtained by cutting cellulose sponge are used.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The cellulose sponge used in the present invention is manufactured from wood or low vegetation. First, the raw materials are dissolved into pulp, and after treating this pulp with a sodium hydroxide solution, carbon disulfide,
Add a drug such as caustic soda to make viscose. The viscose and a foaming agent such as sodium sulfite are mixed to foam and coagulate. The foam obtained by coagulation is washed with a softening agent, a bleaching agent, a weakly acidic solution, etc., and then cut into chips in any direction by a generally known means, then rinsed with water and contained. Used after removing the foaming agent. Further, the cellulose sponge is easily available as a product, and for example, there is a trade name, Chaflows sponge (manufactured by Chaflows Company) and the like. Chips made from cellulose sponge usually have a low bulk specific gravity of 0.3 or less, and because they use low vegetation as a raw material, they are soft and can be easily collected by a vacuum cleaner, and remain on the carpet. It has the feature of not doing. Furthermore, due to the unique fiber structure of the cellulose sponge, the retention of the impregnated detergent component is good, the washed component does not settle on the bottom of the cellulose sponge chip, and the detergent component spreads well in the chip to prevent uneven cleaning. Carry out uniform carpet cleaning. The color tone of the cellulose sponge is not particularly limited, but stains are adsorbed on the chips, and the chips are darkened, so that the degree of cleaning can be easily visually discerned from white or other light-tone color tone is particularly preferable.
Surfactant, solvent, above cellulose sponge chip
A powder cleaning agent for carpet is prepared by using a generally known cleaning agent composed of a basic compound, a chelating agent and the like.

Typical raw materials used as a cleaning agent are as follows. The surfactant is a nonionic surfactant,
Anionic surfactants and amphoteric surfactants can be used, but considering the detergency, especially, the polyoxyethylene alkyl ether with an ethylene oxide addition amount of 3 to 16 moles and the ethylene oxide addition amount of 3 to 16 moles polyoxyalkyl. Nonionic surfactant such as phenyl ether. Anions such as sodium alkylsulfate, polyoxyethylene sodium alkylsulfate having 1 to 3 moles of ethylene oxide added, ammonium alkylsulfate, polyoxyethylene alkylsulfate ammonium salt having 1 to 3 moles of ethylene oxide added, and alkylbenzenesulfonate. A system surfactant is preferable.

A hydrophilic solvent or a lipophilic solvent can be used as the solvent, and the hydrophilic solvent has a solubility in water of 25.
A high boiling point alcohol having a boiling point of 100% or more at atmospheric pressure of 1% or more at 0 ° C., an alkyl ether of a polyhydric alcohol and an ethylene oxide adduct are preferable, and specific examples thereof include 3-methyl-3-methoxybutanol, Examples thereof include ethylene glycol butyl ether, diethylene glycol butyl ether, propylene glycol butyl ether, benzyl alcohol, benzyl alcohol / ethylene oxide adduct, and phenyl ether / ethylene oxide 1 to 3 mol adduct. Further, examples of the lipophilic solvent include petroleum solvents of normal paraffin type and isoparaffin type hydrocarbons.

The basic compound is strongly alkaline and
Inorganic compounds that do not have volatile properties are not desirable because they remain on the carpet as they are and damage the material. Amine compounds can be used. Examples of chelate compounds include known polyaminocarboxylic acids, polyaminocarboxylic acid salts, and polyacrylic acid salts. Although the above-mentioned various raw materials can be used as a cleaning agent, a carpe care shampoo manufactured by Johnson Co. is preferably used as a commercially available product.

Production of a powder cleaning agent for carpet using the cellulose sponge chips of the present invention and the cleaning agent can be generally carried out as follows. That is, 10 to 50 parts of the powder cleaning agent is used for 100 parts of the cellulose sponge chip, and the cellulose sponge chip is sufficiently impregnated with the cleaning agent using a powder mixer to obtain a carpet powder cleaning agent.
In this case, the content in the chip varies depending on the amount of the cleaning agent used and the concentration of the cleaning agent. This can be arbitrarily changed according to the degree of dirt on the carpet surface to be washed. The obtained powder cleaning agent for carpet is sprayed on the surface of the carpet to be cleaned and brushed and cleaned by a dedicated brushing machine. Immediately after cleaning, dust is collected with a vacuum cleaner so that it does not remain on the carpet, does not deteriorate the appearance of the carpet, and does not impair the working environment. It is possible. The types of carpet that can be washed are nylon carpet, wool carpet,
It can be used for acrylic carpets and polyester carpets.

It should be further noted that in the current powder detergent, since the fine particles moistened by the detergent component adhere to the carpet fiber immediately after washing, even if dust is immediately collected by the vacuum cleaner, many powders will be collected. After cleaning, the work is usually interrupted for about 15 to 30 minutes and dust cannot be collected unless the powder is completely dried, whereas the cleaning agent of the present invention has large particles. The bulk density is small,
Further, since it is soft, it can collect dust immediately even immediately after washing when the cellulose chip is moist, which helps improve the working efficiency of carpet washing, and is particularly excellent in workability.

[0012]

EXAMPLES The present invention will be described below with reference to examples, but the present invention is not limited to these examples. In addition, the part of an Example shows a weight ratio.

Examples 1 to 3 Charflows Sponge (manufactured by Charflows Company), a trade name using low grass as a raw material, is crushed and rinsed with water,
A chip (particle diameter 10 mm) having a bulk specific gravity of 0.3 or less from which the contained foaming agent was removed was used. Next, 100 parts of this chaff rouse sponge was used as a cleaning agent with a shampoo manufactured by Johnson Co. (trade name, Carpe Care shampoo) in an amount shown in Table 1 and sufficiently impregnated with a powder mixer to obtain a carpet powder cleaning agent. It was

Comparative Examples 1 and 2 For comparison, wood powder (particle diameter 0.2 mm) was used as Comparative Example 1, borax (particle diameter 0.05 mm) was used as Comparative Example 2, and carpet was used in the same manner as in Example 3. A powder cleaner for powder was obtained.

[0015]

[Table 1]

Using the carpet powder cleaners obtained in Examples 1 to 3 and Comparative Examples 1 and 2, the performance was examined by the following carpet test method. 1. Carpet Test Method (1) Specimen Nylon carpet (color tone: gray, nap: loop pile) was uniformly soiled by natural walking to give a specimen. (2) Method for evaluating detergency and dust collecting property 80 g of each carpet powder cleaning agent per 1 m ² was sprayed on the above carpet, thoroughly cleaned with a brush, and then the powder was immediately collected with a vacuum cleaner. The detergency and dust collection property were according to the following evaluation methods. Detergency (evaluation point) 5 points: The stain was completely washed. 4 points: It was washed a lot, but a little dirt was confirmed. 3 points: About 50% was washed. 2 points ... I was able to clean only a small amount of dirt. 1 point ... Most dirt was not washed. (A score of 3 or less did not exhibit sufficient detergency and the aesthetics of the carpet was not restored.) Dust collection property (evaluation point) 5 points: No residue was left and the powder was completely recovered. 4 points ... A considerable amount of powder was collected, but a small amount of powder remained. 3 points: About 30% of powder remained. 2 points: Only a small amount of powder could be collected. 1 point ... Most of the powder was not collected. (For 3 points or less, the carpet was contaminated by the residual powder, and the aesthetics were remarkably deteriorated.) Table 2 shows the results obtained by the above test method.

[0017]

[Table 2]

[0018]

As shown in Table 2, the powdered detergent for carpet using the cellulose sponge chip according to the present invention is excellent in detergency and dust collection which are not available in the conventional art, and its industrial value is great. .

Claims (1)

[Claims] 1. A powder cleaning agent for carpet, characterized in that in powder cleaning used for cleaning carpet, chips obtained by cutting a cellulose sponge are used.