JPH01132814A - Detergent for use in dry cleaning - Google Patents

Abstract

PURPOSE:To provide the title detergent having excellent cleaning effect, capable of soft finishing, inert to plastics and metals, etc., causing no problems such as the ozone depletion in the stratosphere and groundwater contamination, containing as the active ingredient, a dichloro fluorethane. CONSTITUTION:The objective detergent containing, as the active ingredient, 1,1-dichloro-2-fluorethane or 1,1-dichloro-1-fluorethane, and furthermore, if needed containing pref. 20-30wt.% of hydrocarbon(s) (pref. n-pentane, n-hexane or n-heptane), alcohol(s) (pref. methanol, ethanol or isopropyl alcohol), hetone(s) (pref. acetone or methyl ethyl hetone), chlorinated hydrocarbon(s) (pref. methylene chloride, 1,1,1-trichloroethane or trichloroethylene), and/or surfactant (pref. polyethylene lauryl ether).

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a detergent for dry cleaning.

[Prior art] 1.1.2-1-Lichloro 1.2.2, which is nonflammable, non-exposed, low toxicity, and has good stability, is used as a solvent for dry cleaning fur coats, mail, etc. -Trifluoroethane (hereinafter referred to as "old +3") is widely used.

Furthermore, RII3 allows for soft finishing without damaging clothing due to its moderate dissolving power. In addition to this R1)3, dry cleaning solvents include perchlorethylene, I, 1
．． 1-Trichloroethane and the like are also used.

[Problems to be solved by the invention] Despite the conventionally used R1)3 having various advantages, it is suspected that it destroys stratospheric ozone and may even cause skin cancer. being a substance,
In addition, perchloroethylene, l, l, l-trichloroethane, etc. are prohibited from being used due to the problem of groundwater contamination.
need to be suppressed. The present invention aims to solve these problems by providing a new dry cleaning detergent.

[Means for solving the problems] The present invention has been made to achieve the above-mentioned objects,
1,1-dichloro-2-fluoroethane (formerly 41a)
The present invention provides a dry cleaning detergent containing 1,1-dichloro-1-fluoroethane (hereinafter referred to as R141b) as an active ingredient.

R141a and R141b, which are the active ingredients of the dry cleaning detergent of the present invention, are excellent solvents that have the same advantages as conventional RI+3, such as having a suitable dissolving power.

The dry cleaning detergent of the present invention may contain various other components depending on various purposes.

For example, in order to enhance the stain removal effect, at least one selected from organic solvents such as hydrocarbons, alcohols, ketones, and chlorinated hydrocarbons, or surfactants can be included. The content ratio of these organic solvents in the dry cleaning detergent is 0 to 50+1i-Q%,
Preferably lO~40%, more preferably 20~
It is 30% by weight. When the mixture of R141a or R141b and the organic solvent has an azeotropic composition, it is preferable to use the azeotropic composition.

The content of the surfactants in the dry cleaning detergent is 0 to 10 ITt%, 0.1 to 5%, more preferably 0.2 to 2%.

The hydrocarbons are preferably linear or cyclic saturated or unsaturated hydrocarbons having 1 to 15 carbon atoms, such as n-pentane, isopentane, n-hexane, isohexane, 2-methylpentane, 2,2-dimethylbutane, 2.3-dimethylbutane, n-hebutane, isohebutane, 3-methylhexane, 2.4-dimethylpentane, n-octane, 2-
Methylhebutane, 3-methylhebutane, 4-methylhebutane, 2.2-dimethylhexane, 2.5-dimethylhexane, 3.3-dimethylhexane, Z-methyl-3-
Ethylpentane, 3-methyl-3-ethylpentane, 2
, 3.3-trimethylpentane, 2.3.4-1-dimethylpentane, 2.2.3-1-dimethylpentane, isooctane, nonane, 2,2.5-trimethylhexane, decane, dodencane, I-pentene , 2-pentene, l-hexene, ! ; selected from octene, I-nonene, 1-decene, cyclopentane, methylcyclopentane, cyclohexane, methylcyclohexane, ethylcyclohexane, bicyclohexane, cyclohexene, a-pinene, dipentene, decalin, tetralin, amicin, amylnaphthalene, etc. It is. More preferably,
These include n-pentane, n-hexane, n-hebutane, and the like.

The alcohols are preferably linear or cyclic saturated or unsaturated alcohols having 1 to 17 carbon atoms, such as methanol, ethanol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, 5ec-butyl alcohol, isobutyl alcohol, tert-butyl alcohol, pentyl alcohol, 5ec-amyl alcohol, 1-ethyl-1-propatol, 2-methyl-1
-butanol, isopentyl alcohol, tert-pendel alcohol, 3-methyl-2-butanol, neopentyl alcohol, l-hexanol, 2-methyl-
1-pentanol, 4-methyl-2-pentanol, 2
-Ethyl-1-butanol, 1-heptatool, 2-heptatool, heptanol, 1-octanol, 2-
Octatool, 2-ethyl-1-hexanol, l-nonanol, 3.5.5-trimethyl-1-hexanol, l-decanol, l-undecanol, 1-dodecanol, allyl alcohol, propargyl alcohol, benzyl alcohol, cyclohexanol , 1-methylcyclohexanol, 2-methylcyclohexanol, 3
-Methylcyclohexanol, 4-methylcyclohexanol, α-terpineol, avinitinol, 2.6
-dimethyl-4-heptatool, trimethylnonyl alcohol, tetradecyl alcohol, heptadecyl alcohol and the like. More preferred are methanol, ethanol, isopropyl alcohol and the like.

Ketones include R-CD-R', R-CO, R-
CO-R'-1) 21 CO-R", R-CQ-R', R-Go-tt' (where R, R', R" are saturated or unsaturated carbon atoms having 1 to 9 carbon atoms) Acetone, methyl ethyl ketone, 2-pentanone, 3-pentanone, 2-hexanone, methyl rope tyl ketone, methyl butyl ketone, 2-heptanone, 4-
Heptanone, diisobutyl ketone, acetonylacetone, mesityl oxide, holone, methyl-n-amyl ketone, ethyl butyl ketone, methylhexyl ketone, cyclohexanone, methylcyclohexanone, isophorone,
It is selected from 2.4-pentanedione, diacetone alcohol, acetophenone, fenchen, and the like.

More preferred are acetone, methyl ethyl ketone and the like.

The chlorinated hydrocarbons are preferably saturated or unsaturated chlorinated hydrocarbons having 1 to 2 carbon atoms, such as methylene chloride, carbon tetrachloride, 1.1-dichloroethane, 1.2-dichloroethane, 1. l, i l-dichloroethane, 1,1
．． 2-Trichloroethane, 1,1,1.2-tetrachloroethane, 1.1.2.2-tetrachloroethane, pentachloroethane, 1.1-dichloroethylene, 1.2-
It is selected from dichloroethylene, trichlorethylene, tetrachlorethylene, etc. More preferred are methylene chloride, 1,1,1-dichloroethane, trichlorethylene, tetrachloroethylene, and the like.

As the surfactants, various nonionic, cationic, anionic, or amphoteric surfactants can be employed, and preferred are linear alkylbenzene sulfonates, long-chain alcohol sulfates, and polyoxyethylene ether sulfates. , polyoxyethylene alkyl ether phosphate, polyoxyethylene alkyl ether sulfate, polyoxyethylene alkylphenyl ether phosphate, alpha olefin sulfonate, alkyl sulfosuccinate, polyoxyethylene alkyl ether, polyoxyethylene alkyl ester, polyoxyethylene alkyl allyl ether , fatty acid jetanolamide, polyoxyethylene alkylamide, sorbitan fatty acid ester, polyoxyethylene fatty acid ester, quaternary ammonium salt, hydroxysulfobetaine, polyoxyethylene lauryl ether, polyoxyethylene lauryl ether sodium sulfate, dodecylbenzenesulfonic acid It is selected from sodium, higher alcohol sodium sulfate, etc. More preferred are polyoxyethylene lauryl ether, sodium polyoxyethylene lauryl ether sulfate, sodium dodecylbensene sulfonate, higher alcohol sodium sulfate, and the like.

The dry cleaning detergent of the present invention may further contain various additives such as antistatic agents, softeners, stain removers, flame retardants, water and oil repellents, and stabilizers. As the stabilizer, various stabilizers commonly used in dry cleaning detergents can be used, such as nitroalkanes, epoxides, amines, and phenols.

[Examples] Examples 1 to 7 A detergency cleaning test was conducted using the dry cleaning detergents shown in Table 1 below.

Using a Scrub-0-meter washer, turn it into oil.
Association - Wool contaminated cloth with carbon stain (5x
5cm) and washed at 25℃ for 25 minutes, and
The cleaning effect was observed using an LREP II photoelectric reflectance meter. The results are shown in Table 1.

Table 1 () shows the mixing ratio [Ichikawa%] ○: Good removal Δ: Slightly residual ×: Significant residual [Effects of the invention] As is clear from the examples, the dry cleaning detergent of the present invention cleans well. It is highly effective. In particular, like the conventionally used R1)3, it is possible to create a soft finish on various textiles, and it is less likely to attack plastics, metals, etc., so it can be washed with buttons and ornaments still attached. suitable for cases.

Claims (2)

[Claims] (1) 1,1-dichloro-2-fluoroethane or 1,
A dry cleaning detergent containing 1-dichloro-1-fluoroethane as an active ingredient. (2) Claim 1, wherein the dry cleaning detergent contains at least one selected from hydrocarbons, alcohols, ketones, chlorinated hydrocarbons, and surfactants. Detergent for dry cleaning as described.