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Volumn , Issue , 2012, Pages 169-206

Non-Aqueous Foams: Formation and Stability

Author keywords

Cosmetics and toiletries, foaming as per consumer needs; Diglycerol fatty acid esters, non aqueous phase behavior; Dispersions of crystalline solids, for foam stabilization; Foam stability, unstable systems due to liquid drainage; Foaming in personal care products; Hydrophobic chain length, of surfactant effect; Mono and diglycerol fatty acid esters in different oils; Non aqueous foam stabilization mechanism; Non aqueous foams, formation and stability; Shape of dispersed solid particles

Indexed keywords


EID: 84886151092     PISSN: None     EISSN: None     Source Type: Book    
DOI: 10.1002/9781119954620.ch9     Document Type: Chapter
Times cited : (7)

References (67)
  • 1
    • 0003869633 scopus 로고
    • Foams: Physics, Chemistry and Structure
    • A.W. Robards (ed.), Springer, Berlin
    • A.J. Wilson. Foams: Physics, Chemistry and Structure. In Springer Series in Applied Biology, A.W. Robards (ed.), Springer, Berlin, 1989.
    • (1989) Springer Series in Applied Biology
    • Wilson, A.J.1
  • 2
    • 0003345310 scopus 로고    scopus 로고
    • Nonaqueous foams
    • R.K. Prud'homme and S.A. Khan (eds). Surfactant Science Series 57, Marcel Dekker, New York
    • D.L. Schmidt. Nonaqueous foams. In Foams: Theory, Measurements and Application, R.K. Prud'homme and S.A. Khan (eds). Surfactant Science Series 57, Marcel Dekker, New York, 1996.
    • (1996) Foams: Theory, Measurements and Application
    • Schmidt, D.L.1
  • 3
    • 0023399818 scopus 로고
    • Foams from aqueous systems of polymerisable surfactants
    • S.E. Friberg and J.-H. Fang. Foams from aqueous systems of polymerisable surfactants. J. Coll. Interface Sci., 118: 543-52, 1987.
    • (1987) J. Coll. Interface Sci , vol.118 , pp. 543-552
    • Friberg, S.E.1    Fang, J.-H.2
  • 6
    • 77953724745 scopus 로고    scopus 로고
    • Foams for pharmaceutical and cosmetic application
    • A. Arzhavitina and H. Steckel. Foams for pharmaceutical and cosmetic application. Int. J. Pharmaceutics, 394: 1-17, 2010.
    • (2010) Int. J. Pharmaceutics , vol.394 , pp. 1-17
    • Arzhavitina, A.1    Steckel, H.2
  • 10
    • 0041308067 scopus 로고    scopus 로고
    • Disjoining pressure in thin liquid foam and emulsion films
    • C. Stubenrauch and R. Klitzing. Disjoining pressure in thin liquid foam and emulsion films. J. Phys.: Condens. Matter, 15: R1197-232, 2003.
    • (2003) J. Phys.: Condens. Matter , vol.15 , pp. 1197-1232
    • Stubenrauch, C.1    Klitzing, R.2
  • 11
    • 0003150011 scopus 로고    scopus 로고
    • Foaming, foam films, antifoaming and defoaming
    • R.J. Pugh. Foaming, foam films, antifoaming and defoaming. Adv. Coll. Interface Sci., 64: 67-142, 1996.
    • (1996) Adv. Coll. Interface Sci , vol.64 , pp. 67-142
    • Pugh, R.J.1
  • 12
    • 0141965871 scopus 로고    scopus 로고
    • Foam and Foam Films: Theory Experiment, Application
    • D. Exerowa and P.M. Kruglyakov. Foam and Foam Films: Theory Experiment, Application. Elsevier, New York, vol. 5, 1998.
    • (1998) Elsevier, New York , vol.5
    • Exerowa, D.1    Kruglyakov, P.M.2
  • 13
    • 0035502659 scopus 로고    scopus 로고
    • On foam stability and disjoining pressure isotherms
    • C. Stubenrauch. On foam stability and disjoining pressure isotherms. Tenside Surf. Det., 38: 350-5, 2001.
    • (2001) Tenside Surf. Det , vol.38 , pp. 350-355
    • Stubenrauch, C.1
  • 14
    • 0036382911 scopus 로고    scopus 로고
    • A disjoining pressure study of n-dodcyl- â-D -maltoside films
    • C. Stubenrauch, J. Schlarmann and R. Strey. A disjoining pressure study of n-dodcyl- â-D -maltoside films. Phys. Chem. Chem. Phys., 4: 4504-13, 2002; and Phys. Chem. Chem. Phys., 5: 2736-7, 2003 (erratum).
    • (2002) Phys. Chem. Chem. Phys , vol.4 , pp. 4504-4513
    • Stubenrauch, C.1    Schlarmann, J.2    Strey, R.3
  • 15
    • 0038480651 scopus 로고    scopus 로고
    • (erratum)
    • Phys. Chem. Chem. Phys., 5: 2736-7, 2003 (erratum).
    • (2003) Phys. Chem. Chem. Phys , vol.5 , pp. 2736-2737
  • 16
    • 84886227038 scopus 로고    scopus 로고
    • Foam films, foams and surface rheology of non-ionic surfactants: amphiphilic block copolymers compared with low molecular weight surfactants
    • Part 1, T. Tadros (ed.). Wiley-VCH, Weinheim
    • C. Stubenrauch and B.R. Blomqvist. Foam films, foams and surface rheology of non-ionic surfactants: amphiphilic block copolymers compared with low molecular weight surfactants. In Colloid Stability: The Role of Surface Forces, Part 1, T. Tadros (ed.). Wiley-VCH, Weinheim, 2006.
    • (2006) Colloid Stability: The Role of Surface Forces
    • Stubenrauch, C.1    Blomqvist, B.R.2
  • 17
    • 0000686339 scopus 로고
    • Critical thickness of rupture of chlorbenzene and aniline films
    • A. Scheludko and E. Manev. Critical thickness of rupture of chlorbenzene and aniline films. Trans. Faraday Soc., 64: 1123-34, 1968.
    • (1968) Trans. Faraday Soc , vol.64 , pp. 1123-1134
    • Scheludko, A.1    Manev, E.2
  • 19
    • 0021529562 scopus 로고
    • Longitudinal surface waves for the study of dynamic properties of surfactant systems. II. Air-solution interface
    • L. Ting, D.T. Wasan, K. Miyano and S.Q. Xu. Longitudinal surface waves for the study of dynamic properties of surfactant systems. II. Air-solution interface. J. Coll. Interface Sci., 102: 248-59, 1984.
    • (1984) J. Coll. Interface Sci , vol.102 , pp. 248-259
    • Ting, L.1    Wasan, D.T.2    Miyano, K.3    Xu, S.Q.4
  • 20
    • 0011101061 scopus 로고
    • Relaxation effects in monolayers and their contribution to water wave damping: a comment
    • E.H. Lucassen-Reynders. Relaxation effects in monolayers and their contribution to water wave damping: a comment. J. Coll. Interface Sci., 117: 589-90, 1987.
    • (1987) J. Coll. Interface Sci , vol.117 , pp. 589-590
    • Lucassen-Reynders, E.H.1
  • 21
    • 0000715883 scopus 로고
    • Dynamic surface tension and foaming properties of aqueous polyoxyethylene n-dodecyl ether solutions
    • T. Tamura, Y. Kaneko and M. Ohyama. Dynamic surface tension and foaming properties of aqueous polyoxyethylene n-dodecyl ether solutions. J. Coll. Interface Sci., 173: 493-9, 1995.
    • (1995) J. Coll. Interface Sci , vol.173 , pp. 493-499
    • Tamura, T.1    Kaneko, Y.2    Ohyama, M.3
  • 22
    • 0010264025 scopus 로고
    • A relation between dynamic foam stability and surface elasticity
    • K. Wantke, K. Malysa and K. Lunkenheimer. A relation between dynamic foam stability and surface elasticity, Coll. Surf. A, 82: 183-91, 1994.
    • (1994) Coll. Surf. A , vol.82 , pp. 183-191
    • Wantke, K.1    Malysa, K.2    Lunkenheimer, K.3
  • 23
    • 0031104248 scopus 로고    scopus 로고
    • Dynamic film and interfacial tensions in emulsion and foam systems
    • Y.H. Kim, K. Koczo and D.T. Wasan. Dynamic film and interfacial tensions in emulsion and foam systems. J. Coll. Interface Sci., 187: 29-44, 1997.
    • (1997) J. Coll. Interface Sci , vol.187 , pp. 29-44
    • Kim, Y.H.1    Koczo, K.2    Wasan, D.T.3
  • 24
    • 2642537771 scopus 로고    scopus 로고
    • Stability of foam films and surface rheology: an oscillating bubble study at low frequencies.
    • C. Stubenrauch and R. Miller. Stability of foam films and surface rheology: an oscillating bubble study at low frequencies. J. Phys. Chem. B, 108: 6412-21, 2004.
    • (2004) J. Phys. Chem. B , vol.108 , pp. 6412-6421
    • Stubenrauch, C.1    Miller, R.2
  • 25
    • 44949281847 scopus 로고
    • Relationship between foam stability and surface elasticity forces: fatty acid solutions
    • K. Malysa, R. Miller and K. Lunkenheimer. Relationship between foam stability and surface elasticity forces: fatty acid solutions. Coll. Surf., 53: 47-62, 1991.
    • (1991) Coll. Surf , vol.53 , pp. 47-62
    • Malysa, K.1    Miller, R.2    Lunkenheimer, K.3
  • 26
    • 0032392842 scopus 로고    scopus 로고
    • Effect of long chain alcohols on micellar relaxation time and foaming properties of sodium dodecyl sulphate solutions
    • A. Patist, T. Axelberd and D.O. Shah. Effect of long chain alcohols on micellar relaxation time and foaming properties of sodium dodecyl sulphate solutions. J. Coll. Interface Sci., 208: 259-65, 1998.
    • (1998) J. Coll. Interface Sci , vol.208 , pp. 259-265
    • Patist, A.1    Axelberd, T.2    Shah, D.O.3
  • 28
    • 0242721654 scopus 로고    scopus 로고
    • Surface rheology and foaming properties of sodium oleate and C12(EO)6 aqueous solutions
    • D. Beneventi, R.J. Pugh, B. Carre and A. Gandini. Surface rheology and foaming properties of sodium oleate and C12(EO)6 aqueous solutions. J. Coll. Interface Sci., 268: 221-9, 2003.
    • (2003) J. Coll. Interface Sci , vol.268 , pp. 221-229
    • Beneventi, D.1    Pugh, R.J.2    Carre, B.3    Gandini, A.4
  • 29
    • 25844484117 scopus 로고    scopus 로고
    • Interfacial properties and foam stability effect of novel Gemini-type surfactants in aqueous solutions
    • D.P. Acharya, J.M. Gutiérrez, K. Aramaki, K. Aratani and H. Kunieda. Interfacial properties and foam stability effect of novel Gemini-type surfactants in aqueous solutions. J. Coll. Interface Sci., 291: 236-43, 2005.
    • (2005) J. Coll. Interface Sci , vol.291 , pp. 236-243
    • Acharya, D.P.1    Gutiérrez, J.M.2    Aramaki, K.3    Aratani, K.4    Kunieda, H.5
  • 30
    • 68949097687 scopus 로고    scopus 로고
    • Aqueous foams stabilized by n-dodecyl-â-D-maltoside, hexaethyleneglycol monododecyl ether, and their 1:1 mixture
    • C. Stubenrauch, L.K. Shrestha, D. Varade, I. Johansson, G. Olanya, K. Aramaki and P. Claesson. Aqueous foams stabilized by n-dodecyl-â-D-maltoside, hexaethyleneglycol monododecyl ether, and their 1:1 mixture. Soft Matter, 5: 3070-80, 2009.
    • (2009) Soft Matter , vol.5 , pp. 3070-3080
    • Stubenrauch, C.1    Shrestha, L.K.2    Varade, D.3    Johansson, I.4    Olanya, G.5    Aramaki, K.6    Claesson, P.7
  • 31
    • 0036267602 scopus 로고    scopus 로고
    • Particles as surfactants-similarities and differences
    • B.P. Binks. Particles as surfactants-similarities and differences. Curr. Opin. Coll. Interface Sci., 7: 21-41, 2002.
    • (2002) Curr. Opin. Coll. Interface Sci , vol.7 , pp. 21-41
    • Binks, B.P.1
  • 34
    • 23944445132 scopus 로고    scopus 로고
    • Emulsion stabilization by solid particles. A two layer approach: spherical particles
    • S.E. Friberg. Emulsion stabilization by solid particles. A two layer approach: spherical particles, J. Dispers. Sci. Technol., 26: 647-54, 2005.
    • (2005) J. Dispers. Sci. Technol , vol.26 , pp. 647-654
    • Friberg, S.E.1
  • 35
    • 33745446411 scopus 로고    scopus 로고
    • On the equation of the maximum capillary pressure induced by solid particles to stabilize emulsions and foams and on the emulsion stability diagrams
    • G. Kaptay. On the equation of the maximum capillary pressure induced by solid particles to stabilize emulsions and foams and on the emulsion stability diagrams. Coll. Surf. A, 282/283: 387-401, 2006.
    • (2006) Coll. Surf. A , vol.282 , Issue.283 , pp. 387-401
    • Kaptay, G.1
  • 36
    • 0035426293 scopus 로고    scopus 로고
    • Stability of liquid films containing monodisperse colloidal particles
    • G.N. Sethumadhavan, A.D. Nikolov and D.T. Wasan. Stability of liquid films containing monodisperse colloidal particles. J. Coll. Interface Sci., 240: 105-12, 2001.
    • (2001) J. Coll. Interface Sci , vol.240 , pp. 105-112
    • Sethumadhavan, G.N.1    Nikolov, A.D.2    Wasan, D.T.3
  • 37
    • 20444434017 scopus 로고    scopus 로고
    • Aqueous foams stabilized solely by silica nanoparticles
    • B.P. Binks and T.S. Horozov. Aqueous foams stabilized solely by silica nanoparticles. Angew. Chem. Int. Ed., 44: 3722-5, 2005.
    • (2005) Angew. Chem. Int. Ed , vol.44 , pp. 3722-3725
    • Binks, B.P.1    Horozov, T.S.2
  • 38
    • 33846396145 scopus 로고    scopus 로고
    • Stabilization of foams with inorganic colloidal particles
    • U.T. Gonzenbach, A.R. Studart, E. Tervoort and L.J. Gauckler. Stabilization of foams with inorganic colloidal particles. Langmuir, 22: 10983-8, 2006.
    • (2006) Langmuir , vol.22 , pp. 10983-10988
    • Gonzenbach, U.T.1    Studart, A.R.2    Tervoort, E.3    Gauckler, L.J.4
  • 41
    • 2142855097 scopus 로고
    • Universality in film stratification due to colloid crystal formation
    • D.T. Wasan, A. Nikolov, P. Kralchevsky and I. Ivanov. Universality in film stratification due to colloid crystal formation. Coll. Surf., 67: 139-45, 1992.
    • (1992) Coll. Surf , vol.67 , pp. 139-145
    • Wasan, D.T.1    Nikolov, A.2    Kralchevsky, P.3    Ivanov, I.4
  • 44
    • 69249242895 scopus 로고    scopus 로고
    • Non-ionic surfactant interactions with hydrophobic nanoparticles: impact on foam stability
    • T.N. Hunter, E.J. Wanless, G.J. Jameson and R.J. Pugh. Non-ionic surfactant interactions with hydrophobic nanoparticles: impact on foam stability. Coll. Surf. A, 347: 81-9, 2009.
    • (2009) Coll. Surf. A , vol.347 , pp. 81-89
    • Hunter, T.N.1    Wanless, E.J.2    Jameson, G.J.3    Pugh, R.J.4
  • 45
    • 5444242715 scopus 로고    scopus 로고
    • Factors controlling the formation and stability of air bubbles stabilized by partially hydrophobic silica nanoparticles
    • E. Dickinson, R. Ettelaie, T. Kostakis and B.S. Murray. Factors controlling the formation and stability of air bubbles stabilized by partially hydrophobic silica nanoparticles. Langmuir, 20: 8517-25, 2004.
    • (2004) Langmuir , vol.20 , pp. 8517-8525
    • Dickinson, E.1    Ettelaie, R.2    Kostakis, T.3    Murray, B.S.4
  • 46
    • 0001064355 scopus 로고
    • Theory of the critical thickness of rupture of thin liquid films
    • I.B. Ivanov, B. Radoev, E. Manev and A. Scheludko. Theory of the critical thickness of rupture of thin liquid films. Trans. Faraday Soc., 66: 1262-73, 1970.
    • (1970) Trans. Faraday Soc , vol.66 , pp. 1262-1273
    • Ivanov, I.B.1    Radoev, B.2    Manev, E.3    Scheludko, A.4
  • 47
    • 0014730924 scopus 로고
    • Shear-dependent surface rheological measurements of foam stabilizers in nonaqueous liquids
    • R.J. Mannheimer and R.S. Schechter. Shear-dependent surface rheological measurements of foam stabilizers in nonaqueous liquids. J. Coll. Interface Sci., 32: 212-24, 1970.
    • (1970) J. Coll. Interface Sci , vol.32 , pp. 212-224
    • Mannheimer, R.J.1    Schechter, R.S.2
  • 49
    • 38549112447 scopus 로고    scopus 로고
    • Foam films obtained with ionic liquid
    • W. Bu, J. Jin and I. Ichinose. Foam films obtained with ionic liquid. Angew. Chem. Int. Ed., 47: 902-5, 2008.
    • (2008) Angew. Chem. Int. Ed , vol.47 , pp. 902-905
    • Bu, W.1    Jin, J.2    Ichinose, I.3
  • 50
    • 0011296465 scopus 로고
    • Liquid crystals and the foaming capacity of an amine dissolved in water and p-xylene
    • S.E. Friberg and S.I. Ahmad. Liquid crystals and the foaming capacity of an amine dissolved in water and p-xylene. J. Coll. Interface Sci., 35: 175, 1971.
    • (1971) J. Coll. Interface Sci , vol.35 , pp. 175
    • Friberg, S.E.1    Ahmad, S.I.2
  • 52
    • 0012466770 scopus 로고
    • Stability of hydrophobic foams. Langmuir
    • S.E. Friberg, I. Blute, H. Kunieda and P. Stenius. Stability of hydrophobic foams. Langmuir, 2: 659-64, 1986.
    • (1986) , vol.2 , pp. 659-664
    • Friberg, S.E.1    Blute, I.2    Kunieda, H.3    Stenius, P.4
  • 54
    • 0015763888 scopus 로고
    • Liquid crystalline phases in aerosol formation II: Influence of liquid crystalline phases on foam stability
    • G. Jederström, L. Rydhag and S. Friberg. Liquid crystalline phases in aerosol formation II: Influence of liquid crystalline phases on foam stability. J. Pharm. Sci., 62: 1973-82, 1973.
    • (1973) J. Pharm. Sci , vol.62 , pp. 1973-1982
    • Jederström, G.1    Rydhag, L.2    Friberg, S.3
  • 56
    • 34547340040 scopus 로고    scopus 로고
    • Effect of added water on the foaming properties of diglycerol fatty acid esters-oil systems
    • L.K. Shrestha, R.G. Shrestha, C. Solans and K. Aramaki. Effect of added water on the foaming properties of diglycerol fatty acid esters-oil systems. Langmuir, 23: 6918-26, 2007.
    • (2007) Langmuir , vol.23 , pp. 6918-6926
    • Shrestha, L.K.1    Shrestha, R.G.2    Solans, C.3    Aramaki, K.4
  • 57
    • 53749102013 scopus 로고    scopus 로고
    • Stabilization of nonaqueous foam with lamellar liquid crystal particles in diglycerol monolaurate/olive oil system
    • L.K. Shrestha, R.G. Shrestha, S.C. Sharma and K. Aramaki. Stabilization of nonaqueous foam with lamellar liquid crystal particles in diglycerol monolaurate/olive oil system. J. Coll. Interface Sci., 328: 172-9, 2008.
    • (2008) J. Coll. Interface Sci , vol.328 , pp. 172-179
    • Shrestha, L.K.1    Shrestha, R.G.2    Sharma, S.C.3    Aramaki, K.4
  • 58
    • 33749610512 scopus 로고    scopus 로고
    • Foaming properties of monoglycerol fatty acid esters in nonpolar oil system
    • L.K. Shrestha, K. Aramaki, H. Kato, Y. Takase and H. Kunieda. Foaming properties of monoglycerol fatty acid esters in nonpolar oil system. Langmuir, 22: 8337-45, 2006.
    • (2006) Langmuir , vol.22 , pp. 8337-8345
    • Shrestha, L.K.1    Aramaki, K.2    Kato, H.3    Takase, Y.4    Kunieda, H.5
  • 60
    • 0000915545 scopus 로고
    • Food emulsifiers and their chemical and physical properties
    • K. Larsson and S.E. Friberg (eds). Marcel Dekker, New York
    • N. J. Krog. Food emulsifiers and their chemical and physical properties. In Food Emulsion, K. Larsson and S.E. Friberg (eds). Marcel Dekker, New York, 1990.
    • (1990) Food Emulsion
    • Krog, N.J.1
  • 61
    • 0002029814 scopus 로고
    • Milk and dairy-type emulsions
    • K. Larsson and S.E. Friberg (eds). Marcel Dekker, New York
    • K. Larsson and P. Dejmek. Milk and dairy-type emulsions. In Food Emulsion, K. Larsson and S.E. Friberg (eds). Marcel Dekker, New York, 1990.
    • (1990) Food Emulsion
    • Larsson, K.1    Dejmek, P.2
  • 62
    • 0002752259 scopus 로고
    • Crystal structures of fats and fatty acids
    • N. Garti and K. Sato (eds). Marcel Dekker, New York
    • L. Hernqvist. Crystal structures of fats and fatty acids. In Crystallization and Polymorphism of Fats and Fatty Acids, N. Garti and K. Sato (eds). Marcel Dekker, New York, 1988.
    • (1988) Crystallization and Polymorphism of Fats and Fatty Acids
    • Hernqvist, L.1
  • 63
    • 0041404450 scopus 로고
    • Arrangement of rotating molecules in the high-temperature form of normal paraffins
    • K. Larsson. Arrangement of rotating molecules in the high-temperature form of normal paraffins. Nature, 213: 383-4, 1967.
    • (1967) Nature , vol.213 , pp. 383-384
    • Larsson, K.1
  • 64
    • 71649099783 scopus 로고    scopus 로고
    • Nonaqueous foam with outstanding stability in diglycerol monomyristate/olive oil system
    • R.G. Shrestha, L.K. Shrestha, C. Solans, C. Gonzalez and K. Aramaki. Nonaqueous foam with outstanding stability in diglycerol monomyristate/olive oil system. Coll. Surfaces A., 353: 157-65, 2010.
    • (2010) Coll. Surfaces A , vol.353 , pp. 157-165
    • Shrestha, R.G.1    Shrestha, L.K.2    Solans, C.3    Gonzalez, C.4    Aramaki, K.5
  • 65
    • 70350623086 scopus 로고    scopus 로고
    • Self-assembled structures of diglycerol monolaurate-and monomyristate in olive oil
    • L.K. Shrestha, R.G. Shrestha and K. Aramaki. Self-assembled structures of diglycerol monolaurate-and monomyristate in olive oil. J. Dispers. Sci. Technol., 30: 1552-32, 2009.
    • (2009) J. Dispers. Sci. Technol , vol.30 , pp. 1552-1532
    • Shrestha, L.K.1    Shrestha, R.G.2    Aramaki, K.3
  • 66
    • 33746499586 scopus 로고    scopus 로고
    • Phase behavior of monoglycerol fatty acid esters in nonpolar oils: reverse rodlike micelles at elevated temperatures
    • L.K. Shrestha, T. Sato, D.P. Acharya, T. Iwanaga, K. Aramaki and H. Kunieda. Phase behavior of monoglycerol fatty acid esters in nonpolar oils: reverse rodlike micelles at elevated temperatures. J. Phys. Chem. B, 110: 12266-73, 2006.
    • (2006) J. Phys. Chem. B , vol.110 , pp. 12266-12273
    • Shrestha, L.K.1    Sato, T.2    Acharya, D.P.3    Iwanaga, T.4    Aramaki, K.5    Kunieda, H.6
  • 67
    • 35948974273 scopus 로고    scopus 로고
    • Phase behavior of diglycerol monomyristate in different nonpolar organic solvent systems
    • L.K. Shrestha and K. Aramaki. Phase behavior of diglycerol monomyristate in different nonpolar organic solvent systems. J. Dispers. Sci. Technol., 28: 1236-41, 2007.
    • (2007) J. Dispers. Sci. Technol , vol.28 , pp. 1236-1241
    • Shrestha, L.K.1    Aramaki, K.2


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