JP3869538B2 - Cleaning composition and fiber sheet impregnated with the same - Google Patents

Description

【００３５】
［実施例２］
以下に示す洗浄水溶液を調整し、実施例１と同様にＡＢＳ樹脂への影響評価を行った。また、比較例として金属塩を含有しない洗浄水溶液についても同様に行った。結果を表２に示す。
洗浄剤水溶液の組成（％は重量％を示す。）
・ポリオキシエチレン（ｎ＝２）ラウリン酸エーテル硫酸ナトリウムを０．５％・エタノールを５％
・プロピレンエーテルモノメチルエーテルを２５％
・ジプロピレングリコールを２％
・有機酸カルシウムを表２に示す濃度
・イオン交換水を適量
【００３６】
【表２】

【００３７】
［実施例３］
製紙用パルプ（ＮＢＫＰ）とカルボキシメチルセルロースナトリウム（Ｄ.Ｓ.が０．４３、ｐＨが６．１）を９５：５の比率で水に混合し、原料が分散した液に炭酸ナトリウムをカルボキシメチルセルロースナトリウム１００ｇに対して８０ｇとなる量を添加し、紙料とした。得られた紙料を小型抄造機用いて抄紙し、乾燥して繊維シートを得た。得られた繊維シートに、以下の洗浄剤水溶液を、繊維シート重量の２倍の量を含浸させ、その後引っ張り強度と水解性について評価を行った。
洗浄剤水溶液の組成（％は重量％を示す。）
・プロピレングリコールモノメチルエーテルを２０％
・乳酸カルシウムを１．５％又は安息香酸ナトリウムを１．２％
・イオン交換水を適量
【００３８】
（水解性の評価）
水解性の試験はＪＩＳ Ｐ４５０１のトイレットペーパーほぐれやすさ試験に基づいて行った。詳細を述べると、洗浄液を含浸させた繊維シートを縦１０ｃｍ横１０ｃｍに切断したものを、イオン交換水３００ｍｌを入れたビーカーに投入して、回転子を用いて撹拌を行った。回転数は６００ｒｐｍである。この時の繊維シートの分散状態を経時的に観察し、分散されるまでの時間を測定した。評価基準は以下のとおりである。
○：１００秒以内に細分化する。×：１００秒以内では細分化しない。
【００３９】
（湿潤強度の評価）
湿潤強度は、前記方法によって得られた繊維シートを幅２５ｍｍ長さ１５０ｍｍに裁断したものを試料として用い、テンシロン試験機により、チャック間隔は１００ｍｍ、引張速度は１００ｍｍ／ｍｉｎで測定した。測定は紙の縦方向（ＭＤ）に対して行った。そのときの破断時の強度（ｇｆ）を湿潤強度の試験結果の値とした（表以下、ｇ／２５ｍｍで表す）。湿潤強度については、破断強度が３００ｇ／２５ｍｍ以上あれば、清掃用作業に十分耐えうると考えられる。
結果を表３に示す。
【００４０】
【表３】

【００４１】
【発明の効果】
本発明の洗浄剤組成物は、プラスチック製便座等の液体洗浄剤での清掃時に生じるひび割れを防止しながらも、更に金属部分の錆の発生を起こす成分を含有していない。従って、トイレ周り等の清掃において、ＡＢＳ樹脂及び金属を同時に清掃することができる。すなわち、効率良く且つ効果的に清掃することができる。また、人体にとって有害な化合物を含有していないので、安全性が高い。
【００４２】
また、本発明の洗浄剤組成物を、カルボキシル基をもつバインダーを含有した繊維シートに含浸させることにより、強度に優れた水解性の繊維シートとすることができる。
【図面の簡単な説明】
【図１】実施例の評価方法において、ＡＢＳ樹脂に歪みを生じさせる方法を示す図。
【図２】実施例の評価方法において、歪みが生じたＡＢＳ樹脂の断面図。
【符号の説明】
１ アクリルパイプ
２ ＡＢＳ樹脂テストピース[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cleaning composition. More specifically, the present invention relates to a cleaning composition suitable for simultaneously cleaning ABS resin products and metal products around a toilet or the like, and a disposable fiber sheet impregnated with the same.
[0002]
[Prior art and problems]
There are various materials in the environment where people live, such as in the home, and they become stubbornly stuck to dirt when left for a long time or used. Among these materials, there are many plastics or metals for hard materials. However, certain plastic products, such as umbrellas made of polycarbonate lamps, toilet seats made of ABS resin (acrylonitrile / butadiene / styrene copolymer), etc., may be damaged, such as cracks. There is. This is believed to be due to the alkylene oxide portion, monohydric alcohol or polyhydric alcohol of the surfactant.
[0003]
The problem of deterioration due to the cleaning of the ABS resin product is a problem particularly in the ABS resin toilet seat of the toilet. This is because the toilet seat tends to be stressed by a person sitting on the toilet seat, and is frequently cleaned, so there is a large burden on the toilet seat. Some toilet seats are equipped with a heater, and since heating and cooling are repeated frequently, the resin in the toilet seat is also weakened due to fatigue.
[0004]
Japanese Patent Publication No. 7-56038 discloses a hard surface liquid cleaning made of plastic which has an effect of preventing deterioration of plastic containing a surfactant having a polyalkylene oxide part, an alcohol solvent and a water-soluble inorganic salt (metal halide or zinc sulfate). Agents are disclosed. However, halide chlorine and bromine halide ions cause rusting of pipes and faucets, which are parts where water circulates in cleaning toilets and the like. As for zinc sulfate, it is a compound designated as a deleterious substance.
[0005]
Japanese Patent Publication No. 7-56040 discloses a plastic hard surface liquid detergent containing a surfactant, an alcohol solvent having a vapor pressure of 2 mmHg or more, glycerin and the like. However, since the toilet seat is cracked, a surfactant having an alkylene oxide moiety cannot be used.
[0006]
An object of the present invention is to provide a cleaning composition that does not contain a substance that causes rust in a metal and that does not contain a compound harmful to the human body while impregnating the cleaning composition, while having the effect of preventing cracking of plastics. Another object of the present invention is to provide a disposable fiber sheet.
[0007]
[Means for Solving the Problems]
The above objects and advantages of the present invention include that at least one of the following (A) and (B) is contained, 0.1 to 5% by weight of the following (C) is contained, and the pH is 3 to 12. Achieved by the featured detergent composition.
(A) a surfactant,
(B) at least one solvent selected from the group consisting of monohydric alcohols, polyhydric alcohols and derivatives thereof,
(C) At least one compound selected from the group consisting of calcium benzoate, calcium gluconate, calcium lactate, calcium pantothenate and calcium salicylate.
[0008]
The cleaning composition of the present invention is suitable for cleaning a plastic hard surface, that is, a place where ABS resin and metal are present, for example, around a toilet.
[0009]
The cleaning composition in the present invention contains (A) a surfactant and / or (B) a solvent.
[0010]
(A) As surfactant, anionic surfactant, a cationic surfactant, an amphoteric surfactant, a nonionic surfactant, etc. can be mention | raise | lifted.
For example, alkylbenzene sulfonic acid, alkyl sulfate, α-olefin sulfonate, alkyl sulfosuccinic acid, α-sulfo fatty acid salt, surfactants of the type that does not add alkylene oxide such as soap, polyethylene oxide adducts of higher alcohols, A nonionic surfactant having an alkylene oxide moiety such as an alkylphenol polyethylene oxide adduct, a block polymer of ethylene oxide and propylene oxide, or an anionic surfactant in which these nonionic ends are sulfated, carboxylated or phosphorylated, Alternatively, a surfactant in which these nonionic ends are cationized or zwitterionized can also be used.
[0011]
The surfactant is usually contained in an amount of 0.01 to 10% by weight in the cleaning liquid composition when the cleaning composition is used as it is. Moreover, in what is used by diluting the cleaning liquid composition, the cleaning liquid composition usually contains 0.1 to 30% by weight.
[0012]
Examples of the solvent (B) include monohydric alcohols, polyhydric alcohols, and / or derivatives of these alcohols. Specific examples include ethanol, propylene glycol monomethyl ether, ethylene glycol, propylene glycol, mono- or diesters of glycols and lower alcohols having 1 to 8 carbon atoms, hexylene glycol, 3-methyl-3-methoxybutanol and the like. It is done. The solvent is usually contained in an amount of 0 to 60% by volume in the detergent composition.
[0013]
The detergent composition containing the surfactant (A) and / or the solvent (B) described above can cause cracking in the plastic. In the present invention, (C) calcium benzoate, calcium gluconate, lactic acid Cracking can be prevented by adding at least one compound selected from the group consisting of calcium, calcium pantothenate and calcium salicylate. Calcium lactate is recognized as a food additive and has high safety. The other compound (C) mentioned above is also a highly safe calcium salt used in cosmetics and pharmaceuticals.
[0014]
These compounds (C) are preferably contained in an amount of 0.1 to 5% by weight in the detergent composition. When the amount is less than the lower limit, a sufficient effect cannot be obtained in terms of preventing cracking of the plastic product. Moreover, when more than an upper limit, stickiness will come out to the cleaning object article which used the cleaning composition. Furthermore, when the fiber sheet is used by impregnating the cleaning composition, a wiping mark remains on the article to be cleaned. In consideration of these points, the more preferable content of the compound (C) is 0.5 to 3% by weight in the cleaning composition.
[0015]
The pH of the cleaning liquid is preferably 3-12. Further, if the pH is lower than the lower limit, there is a risk of damaging the ABS resin. Further, if the pH is higher than the upper limit, it is dangerous in use. Further, the pH is more preferably adjusted to pH 4 to 9 so as not to cause rough hand skin. In order to adjust the pH of the cleaning liquid, various commonly used pH adjusting agents can be used, and organic acids and / or organic acid salts (such as sodium organic acid) are particularly preferable.
[0016]
The cleaning composition in the present invention can contain other substances as long as the effects of the present invention are not hindered. For example, a fragrance | flavor, dye, a pigment, a disinfectant, an antibacterial agent, a chelating agent, a preservative, a deodorant, a moisturizer etc. can be contained.
[0017]
The cleaning composition of the present invention is prepared by appropriately adding water in addition to the necessary components (A), (B) and (C) and other added components.
[0018]
The cleaning composition of the present invention can be used for cleaning by impregnating a disposable fiber sheet. When a disposable fiber sheet is impregnated in advance with a cleaning composition of the present invention and packaged into a product, it becomes very simple for the user to use for cleaning.
[0019]
As for the fibers of the fiber sheet used in the present invention, natural fibers such as cotton and pulp, synthetic fibers such as rayon, polypropylene, polyvinyl alcohol, polyester or polyacrylonitrile, synthetic pulp made of polyethylene, and inorganic fibers such as glass wool Etc. may be included.
[0020]
Furthermore, the cleaning composition of the present invention can be used for cleaning by impregnating a water-decomposable fiber sheet. When a water-degradable fiber sheet is used for cleaning, it is very convenient because it can be drained and discarded after cleaning around the toilet.
[0021]
Furthermore, the cleaning composition of the present invention can be used for cleaning by impregnating a water-decomposable fiber sheet containing a binder having a carboxyl group.
[0022]
In general, a water-decomposable fiber sheet needs contradictory properties of water-decomposability and strength. More specifically, in a water-degradable fiber sheet stored in a pre-moistened state, the solution impregnated in the fiber sheet does not dissolve in water, maintains strength during cleaning, and is poured into a toilet or the like to be discarded. When contacted, it must be quickly dispersed. Therefore, in a water-decomposable fiber sheet, a water-dispersible fiber and a compound containing a carboxyl group are used as a binder for binding the fiber to the fiber.
[0023]
Here, when the cleaning composition of the present invention is used, a fiber sheet having both water decomposability and strength can be obtained. The organometallic salt contained in the cleaning composition of the present invention has an effect of increasing the strength of a water-decomposable fiber sheet containing a binder having a carboxyl group. Therefore, the strength of the fiber sheet can be increased without reducing water disintegration.
[0024]
Examples of the binder having a carboxyl group include polysaccharide derivatives, synthetic polymers, and natural products. Examples of polysaccharide derivatives include carboxymethylcellulose, carboxyethylcellulose, carboxymethylated starch and / or alkali metal salts thereof. In particular, sodium salt of carboxymethyl cellulose is preferable.
[0025]
Other examples include natural polymers such as tarragant gum and sodium alginate, and synthetic polymers such as polymers of unsaturated carboxylic acids such as acrylic acid and methacrylic acid, and metal salts of copolymers.
[0026]
These binders having carboxyl groups are not necessarily water-soluble. When the fiber sheet comes into contact with a large amount of water, the adhesion between the fibers of the fiber sheet by the binder may be removed. For example, in carboxymethylcellulose, not only water-soluble carboxymethylcellulose but also water-swellable carboxymethylcellulose can be used as a binder.
[0027]
As the fibers of the water-decomposable fiber sheet, those having good water dispersibility such as softwood pulp and hardwood pulp are mainly used. Here, a thing with good water dispersibility is a thing with good water disintegration or what disperses rapidly when it contacts a large amount of water.
[0028]
Further, in the water-degradable fiber sheet impregnated with the cleaning composition of the present invention, as a binder for bonding fibers, methylcellulose, polyvinyl alcohol or modified polyvinyl alcohol (carboxylic acid modified, sulfonic acid containing no carboxyl group) Modification etc.) can also be used. The cleaning composition of the present invention has an effect of increasing the strength of the fiber sheet even for a water-decomposable fiber sheet using these binders.
[0029]
When the wet fiber sheet of the present invention is packaged as a pre-moistened product, the fiber sheet is hermetically packaged and sold so as not to dry.
[0030]
In addition, the cleaning composition of the present invention may be used by a user impregnating a disposable fiber sheet (nonwoven fabric, tissue, etc.). In this case, it sells as a product only with a cleaning composition, and the purchased user impregnates a nonwoven fabric or tissue.
[0031]
【Example】
EXAMPLES Hereinafter, although an Example demonstrates this invention in more detail, this invention is not limited to these Examples.
[Example 1]
An aqueous solution containing 30% by weight of propylene glycol monomethyl ether and 2% by weight of the metal salt shown in Table 1 was prepared. Evaluation of damage to ABS resin and corrosion of stainless steel in each solution were performed.
[0032]
(Evaluation of damage to ABS resin)
A 390 × 35 × 2 mm ABS resin (manufactured by Shin Kobe Electric) test piece is prepared. This test piece was fixed to the surface of an acrylic pipe having a diameter of 250 mm as shown in FIG. The distortion produced at this time is expressed by the following equation (see FIG. 2).
Strain (%) = (l−L) ÷ L × 100
Here, a distortion of 0.79% was generated. The ABS resin thus strained (stressed) was wiped 10 times with a sheet obtained by impregnating 1 g of the aqueous solution of the example into 1 g of a commercially available tissue paper (dry weight), and 65% at 20 ° C. After 24 hours in RH, damage to the ABS resin was evaluated. Moreover, it carried out similarly about the comparative example. Judgment criteria at this time are as follows. ○: No abnormality. X: Crack generation.
[0033]
(Evaluation of corrosion on stainless steel)
A 50 × 20 × 0.5 mm SAS304 stainless steel plate test piece is prepared. This test piece is polished and cleaned with a commercially available calcite cleanser, and then filled with the aqueous solution of the example in a 100 ml sealed glass bottle, and immersed in such a manner that the stainless steel plate is submerged in half. After storing this at 40 ° C. for 30 days, the degree of occurrence of rust was evaluated. Moreover, it carried out similarly about the comparative example. Judgment criteria at this time are as follows.
○: Rust is not generated. X: Red rust occurred.
Each evaluation result is shown in Table 1.
[0034]
[Table 1]

[0035]
[Example 2]
The cleaning aqueous solution shown below was prepared, and the influence on the ABS resin was evaluated in the same manner as in Example 1. Moreover, it carried out similarly about the washing | cleaning aqueous solution which does not contain a metal salt as a comparative example. The results are shown in Table 2.
Composition of aqueous cleaning solution (% indicates% by weight)
・ Polyoxyethylene (n = 2) sodium laurate ether sulfate 0.5% ・ Ethanol 5%
・ 25% propylene ether monomethyl ether
・ 2% dipropylene glycol
・ Concentration of organic acid calcium shown in Table 2 ・ Suitable amount of ion-exchanged water [0036]
[Table 2]

[0037]
[Example 3]
Pulp for papermaking (NBKP) and sodium carboxymethylcellulose (DS: 0.43, pH: 6.1) are mixed with water at a ratio of 95: 5, and sodium carbonate is added to the liquid in which the raw materials are dispersed. An amount of 80 g per 100 g was added to obtain a paper stock. The obtained stock was made using a small paper machine and dried to obtain a fiber sheet. The obtained fiber sheet was impregnated with the following detergent aqueous solution in an amount twice the weight of the fiber sheet, and then the tensile strength and water disintegration were evaluated.
Composition of aqueous cleaning solution (% indicates% by weight)
・ Propylene glycol monomethyl ether 20%
・ 1.5% calcium lactate or 1.2% sodium benzoate
・ Suitable amount of ion-exchanged water [0038]
(Evaluation of water disintegration)
The water disintegration test was conducted based on the ease of loosening of toilet paper of JIS P4501. More specifically, the fiber sheet impregnated with the cleaning liquid was cut into a length of 10 cm and a width of 10 cm, and the fiber sheet was put into a beaker containing 300 ml of ion-exchanged water and stirred using a rotor. The rotation speed is 600 rpm. The dispersion state of the fiber sheet at this time was observed over time, and the time until dispersion was measured. The evaluation criteria are as follows.
○: Subdivided within 100 seconds. X: Not subdivided within 100 seconds.
[0039]
(Evaluation of wet strength)
Wet strength was measured by using a fiber sheet obtained by the above method cut to a width of 25 mm and a length of 150 mm as a sample, using a Tensilon tester with a chuck interval of 100 mm and a tensile speed of 100 mm / min. Measurements were made in the machine direction (MD) of the paper. The strength at break (gf) at that time was defined as the value of the test result of wet strength (hereinafter, expressed as g / 25 mm). Regarding the wet strength, it is considered that if the breaking strength is 300 g / 25 mm or more, it can sufficiently withstand the cleaning work.
The results are shown in Table 3.
[0040]
[Table 3]

[0041]
【The invention's effect】
The cleaning composition of the present invention does not contain a component that causes rusting of the metal part while preventing cracks generated during cleaning with a liquid cleaning agent such as a plastic toilet seat. Therefore, the ABS resin and the metal can be cleaned at the same time in cleaning around the toilet and the like. That is, the cleaning can be performed efficiently and effectively. Moreover, since it does not contain a compound harmful to the human body, safety is high.
[0042]
Moreover, by impregnating a fiber sheet containing a binder having a carboxyl group with the cleaning composition of the present invention, a water-decomposable fiber sheet having excellent strength can be obtained.
[Brief description of the drawings]
FIG. 1 is a view showing a method for causing distortion in an ABS resin in an evaluation method of an example.
FIG. 2 is a cross-sectional view of an ABS resin in which distortion occurs in the evaluation method of the example.
[Explanation of symbols]
1 Acrylic pipe 2 ABS resin test piece

Claims (4)

A cleaning composition comprising at least one of the following (A) and (B), 0.1 to 5 wt% of the following (C) , and a pH of 3 to 12.
(A) a surfactant,
(B) at least one solvent selected from the group consisting of monohydric alcohols, polyhydric alcohols and derivatives thereof,
(C) At least one compound selected from the group consisting of calcium benzoate, calcium gluconate, calcium lactate, calcium pantothenate and calcium salicylate. A disposable fiber sheet impregnated with the cleaning composition according to claim 1. The disposable fiber sheet according to claim 2, wherein the fiber sheet is water-degradable. The disposable fiber sheet according to claim 3, wherein the fiber sheet contains a binder having a carboxyl group.

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