Detergent composition containing a fluorinated solvent for dry cleaning

Abstract

A detergent composition for dry cleaning is disclosed. The detergent composition for dry cleaning includes a) 5 to 10% by weight of a fluorinated (fluoro-based) solvent, b) 1 to 2% by weight of a cleaning booster, c) 5 to 10% by weight of an anti-shrinkage agent, d) 40 to 50% by weight of a water-soluble solvent, and e) 30 to 40% by weight of water.

Claims

1. A detergent composition for dry cleaning comprising: a) 5 to 10% by weight of a fluorinated (fluoro-based) solvent; b) 1 to 2% by weight of a cleaning booster; c) 5 to 10% by weight of an anti-shrinkage agent; d) 40 to 50% by weight of a water-soluble solvent; and e) 30 to 40% by weight of water, wherein the a) fluorinated solvent comprises at least one selected from the group consisting of the following Formula 1 and a combination thereof:
R—(CH.sub.2).sub.m(CF.sub.2).sub.n—R  [Formula 1] where m is an integer of 0 to 4, n is an integer of 1 to 5, and R is H or F, or CH.sub.3, CH.sub.3O or CF.sub.3, wherein the b) cleaning booster comprises at least one selected from the group consisting of a compound represented by the following Formula 2, a compound represented by the following Formula 3 and a compound represented by the following Formula 4:
C.sub.6H.sub.5—CH.sub.2O—(CH.sub.2CH.sub.2O).sub.m—R.sub.1  [Formula 2]
R.sub.2—O—(CH.sub.2CH.sub.2O).sub.m—R.sub.1  [Formula 3]
R.sub.1—R.sub.3—R.sub.2  [Formula 4] where m is an integer of 1 to 5, R.sub.1 is H or alkyl having 1 to 4 carbon atoms, R.sub.2 is alkyl having 1 to 8 carbon atoms, and R.sub.3 is alkyl or alkene group having 3 to 20 carbon atoms, and wherein the d) water-soluble solvent comprises at least one selected from the group consisting of ethanol (EtOH), n-propanol (NPA), isopropanol (IPA), n-butanol (NBA), n-pentanol (NPA), n-hexanol (NHA) and a combination thereof.

2. The detergent composition for dry cleaning according to claim 1, wherein the c) anti-shrinkage agent comprises at least one selected from the group consisting of propylene glycol (PG), hexylene glycol (HG), ethylene glycol (EG), butylene glycol (BG), 3-methoxy-3-methyl-1-butanol (3-MMB) and a combination thereof.

Description

BEST MODE

(1) Hereinafter, preferred embodiments of the present invention and physical properties of respective components will be described in detail and this detailed description is provided only in order for those skilled in the art to easily implement the present invention and should not be construed as limiting the scope and technical concept of the present invention.

(2) The detergent composition for dry cleaning according to the present invention includes: a) 5 to 10% by weight of a fluorinated (fluoro-based) solvent; b) 1 to 2% by weight of a cleaning booster; c) 5 to 10% by weight of an anti-shrinkage agent; d) 40 to 50% by weight of a water-soluble solvent; and e) 30 to 40% by weight of water.

(3) The ingredients of the composition will be described in detail as follows.

(4) a) Fluorinated (Fluoro-Based) Solvent

(5) The fluorinated solvent according to the present embodiment has excellent cleaning ability against oily contaminants and is relatively excellent in affinity with water in the composition, so that it can be used in combination with water. The fluorinated solvent of the present invention is excellent in solubilizing ability to accommodate water due to excellent amphiphilicity, so that it can be easily used in combination with water and a surfactant.

(6) When used alone, the fluorinated solvent can provide optimal effects in terms of drying speed, cleaning performance and plastic stability. However, since the fluorinated solvents is non-miscible with water conducting other functions, the phase may become turbid or layer separation may occur when used in an amount exceeding 10%, and thus the effects described above cannot be obtained. Also, when the fluorinated solvent is used in an amount of less than 5%, the cleaning rate cannot exhibit adequate cleaning performance. Thus, the use of 5 to 10% by weight of the detergent composition for dry cleaning according to the present embodiment can achieve an optimum effect in terms of drying speed, cleaning performance and plastic stability.

(7) The fluorinated solvent according to the present embodiment may be at least one selected from the group represented by the following Formula 1, or a combination thereof.
R—(CH.sub.2).sub.m(CF.sub.2).sub.n—R  [Formula 1]

(8) Wherein m is an integer of 0 to 4, n is an integer of 1 to 5, and R is H or F, or CH3, CH3O or CF3. The fluorinated solvent according to the present embodiment may be selected from the group consisting of perfluoroheptane (PFH), pentafluorobutane (PFB), decafluoropentane (DFP), methoxy nonafluorobutane (MNF) or a mixture thereof.

(9) b) Cleaning Booster

(10) The detergent composition for dry cleaning of the present embodiment includes a cleaning booster which may be selected from the group consisting of a compound represented by the following Formula 2, a compound represented by the following Formula 3 and a compound represented by the following Formula 4:
C.sub.6H.sub.5—CH.sub.2O—(CH.sub.2CH.sub.2O).sub.m—R.sub.1  [Formula 2]
R.sub.2—O—(CH.sub.2CH.sub.2O).sub.m—R.sub.1  [Formula 3]
R.sub.1—R.sub.3—R.sub.2  [Formula 4]

(11) Wherein m is an integer of 1 to 5, R1 is H or alkyl having 1 to 4 carbon atoms, R2 is alkyl having 1 to 8 carbon atoms, and R3 is alkyl or alkene having 3 to 20 carbon atoms. The cleaning booster according to the present embodiment may be isoalkane (C10-C13 isoalkanes, IP), propylene glycol monomethyl ether (PM), or a mixture thereof.

(12) When the cleaning booster is used in combination with a fluorinated solvent, in particular, in an amount of less than 1%, the cleaning performance may be significantly lowered. In addition, when the cleaning booster is used in an amount of higher than 2%, problems associated with plastic stability may occur. Thus, the plastic may crack or break upon use for a long time.

(13) c) Anti-Shrinkage Agent

(14) The detergent composition for dry cleaning according to the present embodiment includes an anti-shrinkage agent. The anti-shrinkage agent according to the present embodiment may include at least one selected from the group consisting of propylene glycol (PG), hexylene glycol (HG), ethylene glycol (EG), butylene glycol (BG), 3-methoxy-3-methyl-1-butanol (3-MMB) and a combination thereof.

(15) In the case where the anti-shrinkage agent is used in combination with a fluorinated solvent, when it is used in an amount of less than 5%, the clothes may shrink and, when it is used in an amount of higher than 10%, the drying speed of the clothes may be reduced and efficiency may be deteriorated.

(16) d) Water-Soluble Solvent

(17) The detergent composition for dry cleaning according to the present embodiment includes a water-soluble solvent. By using the water-soluble solvent, the viscosity can be maintained over a long period of time, the availability (usability) is not deteriorated and the deodorizing effect is further maintained.

(18) The water-soluble solvent is a medicinal agent that is miscible with water and may include at least one selected from the group consisting of ethanol (EtOH), n-propanol (NPA), iso-propanol (IPA), n-butanol (NBA), n-pentanol (NPA), n-hexanol (NHA) and a combination thereof.

(19) When the water-soluble solvent is used in an amount less than 40%, the fluorinated solvent is not mixed with water and the cleaning performance using the fluorinated solvent according to the present embodiment cannot be obtained. Further, when the water-soluble solvent is used in an amount exceeding 50%, there is the risk of flammability and washing performance may be lowered.

Examples and Comparative Examples

(20) Hereinafter, the present embodiment will be described in detail with reference to the following Examples and Comparative Examples. However, these examples are provided only for illustration and should not be construed as limiting the scope of the present invention.

(21) Each dry cleaning agent was prepared in accordance with the compositions shown in Tables 1 and 2 below. At this time, the dry cleaning agent was prepared by adding a fluorinated solvent, a water-soluble solvent, a cleaning booster and an anti-shrinkage agent to water and stirring at room temperature until a clear liquid state was obtained.

(22) TABLE-US-00001 TABLE 1 Ex- Ex- Exam- Exam- Exam- Ingredient Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 ample 8 ample 9 ple 10 ple 11 ple 12 Fluoro PFH 10 5 5 5 3 solvent PFB 10 5 5 5 3 DEP 10 5 5 5 3 5 MNF 10 5 5 5 Cleaning IP 1 1 1 1 1 1 0.5 0.5 0.5 0.5 0.5 0.5 booster PM 0.5 0.5 0.5 0.5 0.5 0.5 1 1 1 1 1 1 3-MMB(Anti- 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 shrinkage agent) Water- NPA — — — — — — 45 45 45 45 45 45 soluble IPA 45 45 43 43 43 43 — — — — — — solvent Water Balance Balance Balance Balance Balance Balance Balance Balance Balance Balance Balance Balance

(23) TABLE-US-00002 TABLE 2 Comparative Comparative Comparative Comparative Comparative Comparative Ingredient Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Fluoro solvent PFH 3 15 10 PFB DEP 3 15 15 MNF Cleaning booster IP 1 0.5 1 1 0.5 1 PM 0.5 1 0.5 0.5 — 0.5 3-MMB(Anti-shrinkage agent) 8.5 8.5 8.5 8.5 8.5 8.5 Water-soluble NPA 45 — — 45 — — solvent IPA — 45 45 — 45 60 Water Balance Balance Balance Balance Balance Balance

(24) The phase stability, polymer stability, flammability and cleaning rate of the detergent compositions of Examples 1 to 12 and Comparative Examples 1 to 6 were evaluated, and the results are shown in Table 3.

(25) TABLE-US-00003 TABLE 3 Phase Phase stability stability Polymer stability Cleaning rate Items (50° C.) (−15° C.) HDPE LDPE PP ABS PC Flammability (%) Example 1 Good Good ⊚ ⊚ ⊚ ⊚ ⊚ nonflammable >95 Example 2 Good Good ⊚ ⊚ ⊚ ⊚ ⊚ nonflammable >95 Example 3 Good Good ⊚ ⊚ ⊚ ⊚ ⊚ nonflammable >95 Example 4 Good Good ⊚ ⊚ ⊚ ⊚ ⊚ nonflammable >95 Example 5 Good Good ⊚ ⊚ ⊚ ⊚ ⊚ nonflammable >95 Example 6 Good Good ⊚ ⊚ ⊚ ⊚ ⊚ nonflammable >95 Example 7 Good Good ⊚ ⊚ ⊚ ⊚ ⊚ nonflammable >95 Example 8 Good Good ⊚ ⊚ ⊚ ⊚ ⊚ nonflammable >95 Example 9 Good Good ⊚ ⊚ ⊚ ⊚ ⊚ nonflammable >95 Example 10 Good Good ⊚ ⊚ ⊚ ⊚ ⊚ nonflammable >95 Example 11 Good Good ⊚ ⊚ ⊚ ⊚ ⊚ nonflammable >95 Example 12 Good Good ⊚ ⊚ ⊚ ⊚ ⊚ nonflammable >95 Example 13 Good Good ⊚ ⊚ ⊚ ⊚ ⊚ nonflammable >95 Example 14 Good Good ⊚ ⊚ ⊚ ⊚ ⊚ nonflammable >95 Example 15 Good Good ⊚ ⊚ ⊚ ⊚ ⊚ nonflammable >95 Example 16 Good Good ⊚ ⊚ ⊚ ⊚ ⊚ nonflammable >95 Comparative Example 1 Good Good ⊚ ⊚ ⊚ ⊚ ⊚ nonflammable <50 Comparative Example 2 Good Good ⊚ ⊚ ⊚ ⊚ ⊚ nonflammable <60 Comparative Example 3 Poor Poor ⊚ ⊚ ⊚ X Δ nonflammable — Comparative Example 4 Poor Poor ⊚ ⊚ ⊚ Δ ◯ nonflammable — Comparative Example 5 Good Good ⊚ ⊚ ⊚ ⊚ ⊚ nonflammable <60 Comparative Example 6 Good Good ⊚ ⊚ ⊚ ⊚ ⊚ flammable <60

(26) The phase stability in Table 3 was evaluated by visually observing phase separation of the detergent stock solution after allowing the detergent stock solution to stand in an oven at 50° C. for one week. After one week, when the phase of the detergent stock solution is suspended and separated, it is recorded as “defective”, or when the phase of the detergent solution is normal, it is recorded as “good”.

(27) The polymer stability in Table 3 was evaluated by allowing various types of polymers, specifically, high-density polyethylene (HDPE), low-density polyethylene (LDPE), polypropylene (PP), acrylonitrile-butadiene-styrene (ABS) and polycarbonate (PC) to stand in respective detergent compositions for 3 weeks, and then measuring the change of the polymer surface and the change of the weight of the polymer. At this time, the change of the surface state of the polymer such as cracks on the polymer surface and the weight change by elution of the polymer component may occur. In this case, evaluation was conducted depending on the deformation degree of polymers, as shown in Table 4.

(28) TABLE-US-00004 TABLE 4 Polymer stability ⊚: No polymer surface change, no weight reduction, very good ◯: No polymer surface change, weight variation of 5% or less, good Δ: No polymer surface change, weight variation of 20% or less, slight poor Δ: Polymer cracks, poor

(29) The cleaning rate in Table 3 is measured using a colorimeter compared to the case of washing using a washing machine, and the symbol “<” means indication by a maximum measured value.

(30) As can be seen from the above results, when the fluorinated solvent is used in an amount of 5 to 10% by weight, the same effect can be obtained, despite using, as the fluorine solvent, perfluoroheptane (PFH), pentafluorobutane (PFB), decafluoropentane (DFP), methoxy nonafluorobutane (MNF) or a combination thereof.

(31) In the case of the cleaning booster as well, the same effect can be obtained, despite using isoalkane (C10-C13 isoalkanes, IP) and propylene glycol monomethyl ether (PM), in a certain amount varied within 1 to 2% by weight.

(32) In the case of the water-soluble solvent, the same effect can be obtained despite using propanol (NPA) and isopropanol (IPA) in the range of 40 to 50% by weight.

(33) As can be seen from Examples 1 to 16 of Table 1, the detergent composition for dry cleaning of the present invention, which is prepared by adding water, a fluorinated solvent, a water-soluble solvent, a cleaning booster and an anti-shrinkage agent, can effectively remove oily and aqueous contaminants on the fabric surface and secure stability and (safety) to various kinds of polymers.

(34) As can be seen from Comparative Examples that do not fall within the range of values according to the present embodiment, as in Comparative Examples 1 and 2, when the fluorine-based solvent is used in an amount of less than 5% by weight, the cleaning rate was significantly low, compared to Examples, and as in Comparative Examples 3 and 4, when the fluorine-based solvent is used in an amount of higher than 10% by weight, there are problems of poor phase stability or polymer stability, compared to Examples.

(35) In addition, as in Comparative Example 5, when the cleaning booster is used in an amount of less than 1% by weight, the cleaning rate is considerably low, compared to Examples and as in Comparative Example 6, when the water-soluble solvent is used in an amount of higher than 50% by weight, there are problems of low cleaning rate and inflammability.