JP2002167596A - Cleaning performance reinforcement composition, production method therefor, and cleaning method therewith - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cleaning performance reinforcement composition which is excellent in preventing a fiber structure from becoming dirty again and contributes to the realization of an excellent cleaning power without using a phosphate in cleaning a fiber structure containing particulate dirt and oily dirt in a large amount, and to provide a cleaning method using the same. SOLUTION: The cleaning performance reinforcement composition is an aqueous emulsion liquid and contains 5 mass% or less nonionic surfactant and 1-30 mass% nonionic polymer compound which comprises alkylene terephthalate units and/or alkylene isophthalate units and polyoxyalkylene units, has a mass average mol.wt. of 2,000-35,000, and can be emulsified in an aqueous liquid.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning performance-enhancing composition used for cleaning fibrous structures having a large amount of particulate soil and oily soil, a method for producing the same, and a method for cleaning the same. More specifically, the present invention relates to a cleaning performance enhancer composition useful for cleaning fiber structures such as floor mats and floor cleaning mops used in stores and offices, and a method for producing and cleaning the same.

[0002]

2. Description of the Related Art Conventionally, in the field of dust control, powder detergents containing phosphate have been generally used when cleaning entrance mats, floor mats, floor cleaning mop and the like of shops, offices, hotels and the like. Was.
When washing mats and mops, a large amount of particle stains, oily stains, etc. coexist, so a phosphate builder is indispensable. Without this, sufficient washing power cannot be obtained or significant recontamination occurs. Such a problem occurs. In other words, in the case of a mat, the color of the product becomes darker in the case of a mop, and in the case of a mop, in addition to the blackening of the product, the back label portion becomes blackened, resulting in a problem that the commercial value is significantly reduced. However, phosphates still have problems such as wastewater regulations, and although phosphorus-free detergents have been demanded in recent years, they still cannot contain such problems of reduced washing power and recontamination, so they still contain phosphates. At present, detergents are used. On the other hand, in the case of producing an emulsified dispersion of a thermoplastic hydrophobic polymer compound, a step of melting the polymer compound at or above its melting point and mixing it with an aqueous phase heated to or above the melting point of the polymer compound. General. However, in such a process, heating is costly, and when the dispersion produced in the process is filled into a polyethylene container or the like immediately after production, a problem arises in that the container is deformed, so a cooling process is required. At present, efficient production has not been achieved.

[0003]

DISCLOSURE OF THE INVENTION The present invention provides an excellent effect of preventing re-contamination without using a phosphate in washing a fibrous structure having a large amount of particulate soil and oily soil. It is an object of the present invention to provide a cleaning performance enhancer composition and a cleaning method that contribute to the development of a detergency, and to provide a method for efficiently producing a composition having excellent separation stability.

[0004]

Means for Solving the Problems The inventors of the present invention have made intensive studies to solve the above-mentioned problems, and as a result, in cleaning a fibrous structure such as a mat or a mop in which a large amount of particulate stains and oily stains are present. By using an aqueous emulsified liquid of a polymer compound having a specific structure and a molecular weight and having a property of emulsifying and dispersing in an aqueous liquid, an excellent effect of preventing re-contamination can be obtained. It has been found that by producing an aqueous emulsified liquid by the method, an emulsified dispersion having excellent separation stability can be efficiently produced, and the present invention has been completed. In addition, the fiber structure means dust control fiber products such as mats and mops, uniforms for sports,
Textile products such as civil engineering workwear, socks, and clothing.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The cleaning performance enhancer composition of the present invention, its production method and its cleaning method are described below. 1. A nonionic polymer compound comprising an alkylene terephthalate and / or alkylene isophthalate unit and a polyoxyalkylene unit, having a mass average molecular weight of 2,000 to 35,000 and having a property of being emulsified and dispersed in an aqueous liquid. 1 to 30% by mass of the polymer compound,
A cleaning performance enhancer composition comprising 5% by mass or less of a nonionic surfactant and being an aqueous emulsified liquid. 2. Mixing the nonionic polymer compound according to 1 above, which is melted at a temperature not lower than the melting point, and an aqueous phase having a temperature lower than the melting point of the nonionic polymer compound and not lower than 30 ° C., and emulsifying and dispersing. 2. A method for producing the composition according to 1. 3. In cleaning the fibrous structure, the ratio of pre-washing and main-washing of the cleaning performance enhancer composition described in 1 above to pre-washing and main washing is set to 2: 8 to 7: 3 by mass ratio, and the mass ratio A cleaning agent, wherein the cleaning agent is used in the range of 2: 1 to 50: 1 and the cleaning is performed.

The nonionic polymer compound used in the present invention is a polymer obtained by polymerizing alkylene terephthalate and / or alkylene isophthalate units and polyoxyalkylene terephthalate units at random or in blocks. Examples include terephthalate, butylene terephthalate, and mixtures thereof, with ethylene terephthalate being preferred. Examples of the alkylene isophthalate include ethylene isophthalate, propylene isophthalate, butylene isophthalate and a mixture thereof, among which ethylene isophthalate is preferred. The alkylene terephthalate and the alkylene isophthalate may be randomly polymerized or block polymerized. Examples of the polyoxyalkylene include polyoxyethylene, polyoxypropylene, polyoxyethylene polyoxypropylene, and the like.

The method for producing the nonionic polymer compound is disclosed in various documents, textbooks, patents, and the like.
For example, Journal of Polymer Sc
issue, vol. 3, pages 609-630 (1948)
Year), Journal of Polymer Scie
nce, Vol. 8, pp. 1-22 (1951), JP-A-61-218699, or other methods. In the present invention, the above-mentioned nonionic polymer compound having a mass average molecular weight of 2,000 to 35,000 and having a property of emulsifying and dispersing in an aqueous liquid is used. Here, the aqueous liquid is water or an aqueous solution of an alcohol or a polyhydric alcohol, and the concentration of the alcohol or the polyhydric alcohol is 5 to 20% by mass. The nonionic polymer compound used in the present invention is, from among the polymer compounds having the above-mentioned structure and molecular weight, the above-mentioned nonionic polymer compound melted at a temperature not lower than the melting point, and at least 30 ° C. When it is mixed with an aqueous liquid of less than 1, a milky white dispersion is selected. The stirring when mixing the molten nonionic polymer compound and the aqueous liquid at 30 ° C. or higher
General-purpose stirrers such as paddles and propellers and emulsifiers can be used. Preferred specific examples of the nonionic polymer compound used in the present invention include those commercially available under the trade name SRC-1 (manufactured by Clariant GmbH, Germany, weight average molecular weight: about 7,000). In the present invention, the nonionic polymer compound is
In the composition, it is preferably 1 to 30% by mass, preferably 5 to 30% by mass, and particularly preferably 8 to 25% by mass. If the amount is less than 1% by mass, a sufficient effect cannot be obtained. If the amount exceeds 30% by mass, a stable aqueous emulsified liquid may not be obtained.

[0008] The amount of the nonionic surfactant used in the present invention is 5% by mass or less, preferably 0.1 to 5% by mass, particularly preferably 0.1 to 3% by mass in the composition. As the nonionic surfactant, one obtained by adding an average of 5 to 30 mol of alkylene oxide to a higher alcohol or fatty acid having 8 to 22 carbon atoms is used.

More specifically, the following are mentioned. 1) A linear primary alcohol having 8 to 18 carbon atoms containing ethylene oxide and / or propylene oxide on average of 5
Polyoxyalkylene alkyl ethers (alkylene oxide adducts of linear primary alcohols) with an addition of モ ル 30 mol. Specific examples of the alcohol used include those obtained from alcohol derived from palm oil and alcohol derived from palm kernel oil.

2) Polyoxyalkylene alkyl ether (α-methyl branched primary) obtained by adding an average of 5 to 30 mol of ethylene oxide and / or propylene oxide to an α-methyl branched primary alcohol having 8 to 16 carbon atoms. Alkylene oxide adduct of alcohol). Specific examples of the alcohol used include synthetic alcohols known by trade names such as dovanol, oxochol, and diamond doll.

3) A polyoxyalkylene alkyl ether (an alkylene oxide adduct of a secondary alcohol) in which ethylene oxide and / or propylene oxide are added on average to 5 to 30 mol of a secondary alcohol having 8 to 16 carbon atoms. Specific examples of the alcohol used include a synthetic alcohol known by a trade name such as sophthanol.

4) A polyoxyalkylene alkyl ether obtained by adding an average of 5 to 30 moles of ethylene oxide and / or propylene oxide to a primary alcohol having a multibranched chain having 9 to 16 carbon atoms. Alkylene oxide adduct of primary alcohol). Specific examples of the alcohol used include a synthetic alcohol obtained from a dimer or trimer of butene represented by isotridecyl alcohol or a trimer to pentamer of propylene.

5) Polyoxyalkylene fatty acid esters (alkylene oxide adducts of fatty acid esters) in which ethylene oxide and / or propylene oxide are added on average to 5 to 30 moles of fatty acid esters having 10 to 22 carbon atoms. Specific examples of the fatty acid ester used include esters of fatty acids and alcohols having 1 to 3 carbon atoms contained in tallow, hardened tallow, coconut oil, palm kernel oil and the like, and partial fractions thereof.

Of these nonionic surfactants, an alkylene oxide adduct of a primary alcohol having a multi-branched chain of 4) is preferably used.

[0015] In addition to the above, components such as alcohols, polyhydric alcohols, preservatives, antibacterial agents and defoamers can be added to the composition of the present invention. Alcohols and polyhydric alcohols are one or more selected from the group consisting of ethanol, isopropanol, ethylene glycol, propylene glycol, diethylene glycol and dipropylene glycol, and the blending amount in the composition is preferably , 5 to 20% by weight, especially 6 to 15% by weight. If it is less than 5% by weight, the dispersion stability of the nonionic polymer compound is insufficient, and if it exceeds 20% by weight, no improvement in the effect may be observed. Further, preferably,
Benzoates, isothiazolones (ROHM & HAAS) and the like can be used as preservatives and antibacterials, and nonionic surfactants and silicone defoamers having a defoaming effect can be used as defoamers. Examples of silicone defoamers include SH200
C, SH5500, BY25-332 (Dow Corning Toray), CF2132, DKQ2-3183A, F
S1265 (Dow Corning) and the like. The pH of the composition of the present invention is preferably from 4.0 to 1
0.0, particularly preferably 5.5 to 8.5. p
If H is too low, the nonionic polymer compound may decompose, while if it is too high, the separation stability of the emulsified dispersion may be adversely affected.

The cleaning performance enhancer composition of the present invention is produced as follows. Mix water and aqueous components such as alcohol, polyhydric alcohols, preservatives, antibacterial agents, antifoaming agents,
Prepare the aqueous phase. The aqueous component refers to a component that can be blended in the aqueous phase as described above. Here, the aqueous component not added to the aqueous phase may be mixed after the following emulsification and dispersion. The aqueous phase is at a temperature lower than the melting point of the nonionic polymer compound and higher than or equal to 30 ° C, preferably 30 to 60 ° C,
Particularly, the temperature is adjusted to 30 to 50 ° C. A nonionic polymer compound melted at a temperature of not less than the melting point, preferably 60 ° C. or less, and an aqueous phase adjusted to a temperature of 30 ° C. or more below the melting point of the polymer compound are mixed and emulsified and dispersed. This step of emulsifying and dispersing may be a batch type or a continuous type, and can be performed using a general-purpose stirrer such as a paddle or a propeller, or an emulsifier such as a jet agitator, a colloid mill, or a homomixer. In the case of a batch method, the step of emulsifying and dispersing is preferably performed by gradually adding a molten nonionic polymer compound while stirring the aqueous phase. In the composition of the present invention, the average particle diameter of the nonionic polymer compound is preferably 3 μm or less, particularly preferably 1 μm or less, whereby the dispersion stability is suitable. For adjusting the particle size, it is preferable to use an emulsifier such as a jet agitator, a colloid mill, a homomixer, and the like, and when coarse particles, aggregates, etc. are generated, a method of removing coarse particles using a sieve, a strainer, or the like. May be used.

When the composition of the present invention is used in a commercial washing machine, a remarkable effect can be obtained by washing with a batch washer or a continuous washer by the following method. In the cleaning method of the present invention, when cleaning the fibrous structure, the ratio of pre-washing and main-washing of the cleaning performance enhancer composition to the main wash is set to 2: 8 to 7: 3 by mass ratio, and Detergent: detergency enhancer composition in a mass ratio of 2: 1 to 50:
Use in 1 range and wash. If the split ratio between the pre-washing and the main washing or the ratio of the detergent to the cleaning performance enhancer composition is out of the above range, a sufficient effect cannot be obtained. Preferably, the ratio of pre-washing and main-washing of the cleaning performance enhancer composition to the pre-washing and main washing in terms of the mass ratio is 2.5: 7.5 to 6.5: 3.5, more preferably 3: 2. The cleaning agent is used at a ratio of 7 to 6: 4, and the cleaning agent: cleaning performance enhancer composition is used in a mass ratio of 3: 1 to 30: 1.

The cleaning performance enhancer composition of the present invention can be used for cleaning textile structures and textile products regardless of whether it is for home use or business use.

[0019]

According to the present invention, when the composition of the present invention is used together with a phosphorus-free detergent in the cleaning of a fibrous structure having a large amount of particulate soil and oily soil, an excellent effect of preventing re-contamination is exhibited. In addition, it contributes to the development of high detergency. Further, an aqueous emulsified liquid composition having excellent separation stability can be efficiently produced.

[0020]

Next, the present invention will be described with reference to examples.
The present invention is not limited by these examples.

<Ingredients> Polymer A: a nonionic polymer containing a polyethylene glycol unit at a mass ratio of 2: 5 and a polypropylene glycol unit at a mass ratio of 1: 1 with respect to an alkylene terephthalate unit composed of terephthalic acid and ethylene glycol. Molecular compound (quotient mass average molecular weight: about 7500): Dispersed in water Polymer B: 1: 2 mass ratio of polyethylene glycol unit to alkylene terephthalate unit composed of terephthalic acid and ethylene glycol, 2: 2 mass ratio of polypropylene glycol unit to 1 Nonionic polymer compound contained (quotient mass average molecular weight: about 14000): dispersed in water Polymer C: commercially available in which a polyethylene glycol unit and a polypropylene glycol unit are added to an alkylene terephthalate unit composed of terephthalic acid and ethylene glycol Ionic polymer compound (trade name SRC-1: Cl
ariant GmbH, weight average molecular weight of about 700
0): Dispersed in water. Polymer D (comparative product): a non-polymer containing polyethylene glycol units in a mass ratio of 1: 5 and polypropylene glycol units in a mass ratio of 1: 1 with respect to an alkylene terephthalate unit composed of terephthalic acid and ethylene glycol. Ionic polymer compound (quotient weight average molecular weight: about 50,000): Dispersed in water Polymer E (comparative product): Commercially available nonionic polymer compound composed of terephthalic acid and ethylene glycol (trade name Pluscoat FR-627: compatible chemical) (Manufactured by Kogyo Co., Ltd., mass average molecular weight: 15,000 to 24,000): soluble in water Nonion A: a product obtained by adding 40 mol of ethylene oxide to isotridecyl alcohol on average Nonion A: average of ethylene oxide to isotridecyl alcohol Isothiazolone liquid: Caisson CG / IC (ROHM &
HAAS) Silicone defoamer: CF2132 (Dow Corning)

<Evaluation Method> [Resoil Prevention Ability] A sheet attached with one piece of polyester evaluation cloth of 10 cm × 15 cm was attached to a washer (MOX-600:
(Manufactured by Tokyo Washing Machine Co., Ltd.). Liquid detergent Powerful Nonion (manufactured by Lion Trading Co., Ltd.): 1.7K
g, Biosat Hard (manufactured by Lion Corporation): 2.
5 kg, 300 g of cleaning performance enhancer composition at 60 ° C. /
After three minutes of prewashing, rinsing was performed twice. Next: Liquid detergent Powerful Nonion (Lion Trading Co., Ltd.) 1.5 kg, Biosat Hard (Lion Co., Ltd.): 2.3 K
g, sodium percarbonate: 1.2 kg, followed by main washing at 70 ° C. for 7 minutes, followed by rinsing four times. The evaluation cloth was taken out from the washer, and the reflectance of each evaluation cloth was measured. The smaller the following ΔR, the better the re-contamination prevention ability. Recontamination prevention ability (ΔR) = (reflectance of evaluation cloth before cleaning)-
(Reflectance of evaluation cloth after cleaning)

[Detergency] A detergency evaluation cloth cut into 5 cm × 5 cm, that is, EMPA104 and EMPA10
6 (manufactured by EMPA TESTMATERIAL Co., Ltd.), using a sheet to which five sheets were attached, was subjected to a washing treatment in accordance with the method for evaluating the ability to prevent re-contamination. The reflectance of the treated detergency evaluation cloth was measured, and the detergency was determined by the following general formula.

[0024]

Example 1, Comparative Examples 1 and 2 <Production of detergent performance enhancer composition> Based on the composition of Example 1 in Table 1, the composition was produced as follows. Water, a nonionic surfactant, ethylene glycol, sodium benzoate, and other components are put into a stirring tank (with a jet agitator stirring blade) and stirred to prepare an aqueous phase, and the aqueous phase is heated to 40 ° C. Warmed. The nonionic polymer C melted at a temperature of 60 ° C. was charged under stirring to prepare an emulsified dispersion. Subsequently, the emulsified dispersion was cooled to 35 ° C. with stirring to obtain a cleaning performance enhancer composition having a milky white appearance. Further, Comparative Examples 1 and 2 were carried out in the same manner as in Example 1 except that the temperature of the aqueous phase when preparing the emulsified dispersion was 25 ° C. or 70 ° C., respectively. The composition thus prepared is placed in a 100 ml glass bottle,
As a result of observing the appearance of the composition after storage at 40 ° C. for one month, the appearance of the composition of Example 1 was not different from that immediately after production, but the compositions of Comparative Examples 1 and 2 were all granular. Of sediment was observed.

[0025]

Examples 2-5, Comparative Examples 3-4 Washing of the compositions shown in Table 1 was carried out in the same manner as in Example 1 except that the melting temperature of the polymer and the temperature of the aqueous mixture were changed to the temperatures shown in Table 1. A performance enhancer composition was prepared. According to the above evaluation method, the ability to prevent re-contamination,
The detergency was measured, and the results are shown in Table 1.

[0026]

[Table 1]

Continued on the front page F term (reference) 4G065 AA01 AB10X AB12X AB38X BA06 CA02 DA08 EA01 EA02 EA05 FA01 4H003 AC08 BA12 DA01 DA04 EB04 EB07 EB37 EB38 ED02 FA06 FA16 FA37

Claims (3)

[Claims] 1. A nonionic polymer compound comprising an alkylene terephthalate and / or alkylene isophthalate unit and a polyoxyalkylene unit, having a weight average molecular weight of 2,000 to 35,000, and an aqueous liquid. The polymer compound having the property of emulsifying and dispersing is 1 to 3
A cleaning performance enhancer composition comprising 0% by mass and 5% by mass or less of a nonionic surfactant and being an aqueous emulsified liquid. 2. The nonionic polymer compound according to claim 1, which has been melted at a temperature not lower than the melting point, and an aqueous phase having a temperature lower than the melting point of the nonionic polymer compound and not lower than 30 ° C.,
The method for producing a composition according to claim 1, comprising a step of emulsifying and dispersing. 3. The washing performance enhancer composition according to claim 1, which is used for washing the fibrous structure, wherein the pre-washing ratio and the main washing ratio are divided by a ratio of pre-washing: main-washing from 2: 8 to 7: 3. And a detergent: detergent enhancer composition in a mass ratio of 2: 1 to 50: 1
Cleaning method, wherein the cleaning method is used in the range described above.