Patent US6744086B2 successfully refreshed from Google Patents.
Patent EP0455465A2 successfully refreshed from Google Patents.
EP0455465A2
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EP
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Washing/drying method and apparatus
Assignee: Fujitsu Ltd
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Filing: 1991-04-30
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Granted: —
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Expires: 2011-04-30
Abstract
Abstract A washing/drying method, comprising: dipping a material to be washed into an aqueous solution containing a surfactant having a water repellency so that at least one molecular layer of the water repellent surfactant is attached to the surface of the material to be washed; and then drying the material according to a known drying method such as vacuum drying, shaking off, blowing with gas and heating; or heating the material to be washed with steam at a temperature of less than 100°C in an atmosphere reduced to a pressure such that the boiling point of water becomes less than 100°C; and then drying the material according to a known drying method such as vacuum drying, shaking off, blowing with air, and heating.
Inventors
- 👤 Ichiro Yoshida
- 👤 Hiroshi Iida
- 👤 Shuzo Kawashima
- 👤 Isamu Ito
- 👤 Fukuji 849-3 Hirao Yamanouchi-Machi Kuroiwa
- 👤 Satoru 309 Higashiwada Asanome
- 👤 Tishiji Tujimori
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 15:16
CPC Classifications
B; B08; B08B; B08B3/00; B08B3/04; B08B3/08; H; H10; H10P; H10P70/00; H10P70/10; H10P70/15; B08B3/10; B08B3/12; B08B7/00; B08B7/0064; B08B7/0071; B08B7/02; B08B7/026; B08B7/028; C; C11; C11D; C11D1/00; C11D1/004; C11D1/006; C11D1/66; C11D1/82; C23; C23G; C23G1/00; C23G1/24; H10P72/00; H10P72/04; H10P72/0402; H10P72/0406; C11D2111/00; C11D2111/10; C11D2111/12; C11D2111/14; C11D2111/22; C11D2111/40; C11D2111/44; H05; H05K; H05K3/00; H05K3/22; H05K3/26; Y; Y10; Y10S; Y10S134/00; Y10S134/902
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
49 words
A washing/drying method, comprising: dipping a material to be washed into an aqueous solution containing a surfactant having a water repellency so that at least one molecular layer of the water repellent surfactant is attached to the surface of the arterial to be washed, and then drying the material.
Claim 2
Dependent Claim
49 words
A washing/drying method as claimed in claim 1, wherein said surfactant having a water repellency is at least one surfactant selected from the group consisting of hydrocarbon type surfactants having a C₁₂-C₁₈ hydrophobic alkyl group, fluorine type surfactants having a C₆-C₁₂ fluorinated alkyl group, and hydrophobic silicon type surfactants.
Claim 3
Dependent Claim
52 words
A washing/drying method as claimed in claim 1, further comprising heating the material to be washed with steam at a temperature of less than 100°C in an atmosphere reduced to a pressure such that the boiling point of water becomes less than 100°C, prior to a drying of the material after washing.
Claim 4
Dependent Claim
49 words
A washing/drying method as claimed in claim 3, wherein said surfactant having a water repellency is at least one surfactant selected from the group consisting of hydrocarbon type surfactants having a C₁₂-C₁₈ hydrophobic alkyl group, fluorine type surfactants having a C₆-C₁₂ fluorinated alkyl group, and hydrophobic silicon type surfactants.
Claim 5
Dependent Claim
88 words
A washing/drying method comprising: dipping a material to be washed into an aqueous solution containing a surfactant having a water repellency so that at least one molecular layer of the water repellent surfactant is attached to the surface of the material to be washed, heating the material to be washed with steam at a temperature of less than 100°C in an atmosphere reduced to a pressure such that the boiling point of water is less than 100°C, blowing the material with gas, and thereafter, vacuum drying the material.
Claim 6
Dependent Claim
49 words
A washing/drying method as claimed in claim 5, wherein said surfactant having a water repellency is at least one surfactant selected from the group consisting of hydrocarbon type surfactants having a C₁₂-C₁₈ hydrophobic alkyl group, fluorine type surfactants having a C₆-C₁₂ fluorirated alkyl group, and hydrophobic silicon type surfactants.
Claim 7
Dependent Claim
59 words
A washing/drying method comprising: placing a material to be washed in a vacuum chamber, heating the material to be washed with steam at a temperature of less than 100°C in an atmosphere reduced to a pressure such that the boiling point of water is less than 100°C, subsequently blowing the material with gas, and thereafter, vacuum drying the material.
Claim 8
Dependent Claim
116 words
A washing/drying apparatus comprising: a water vessel for containing an aqueous solution containing a surfactant having a water repellency, at least one shower washing device for removing superfluous surfactant attached to the material to be washed in the water vessel, and a vacuum chamber for drying the material to be washed after shower washing, said vacuum chamber having a means of jetting steam so that the material to be washed can be heated with steam at a temperature of less than 100°C in an atmosphere reduced to a pressure such that the boiling point of water is less than 100°C, and having a gas blowing means so that the water can be drained by blowing gas.
Claim 9
Dependent Claim
84 words
A washing/drying apparatus as claimed in claim 8, wherein said apparatus comprises, in the following order, an ultrasonic washing vessel containing an aqueous solution of a surfactant having a water repellency, a first shower washing vessel, a water dipping bubbling vessel, a second shower washing vessel, and a plurality of vacuum drying vessels, said vacuum vessels being arranged such that a steam heating under a reduced pressure, a hot gas blowing and a vacuum drying are carried out in parallel in each vacuum vessel.
Claim 10
Dependent Claim
90 words
A washing/drying apparatus as claimed in claim 8, wherein said apparatus comprises ; in the following order, an ultrasonic washing vessel containing an aqueous solution of a surfactant having a water repellency, a first shower washing vessel, a water dipping bubbling vessel, a second shower washing vessel, and a plurality of vacuum drying vessels, said vacuum vessels being arranged such that a steam heating under a reduced pressure, a hot gas blowing and vacuum drying are carried out separately and in said order in the plurality of the vacuum vessels.
Claim 11
Dependent Claim
104 words
A drying apparatus comprising: a device for irradiating a material to be washed with electromagnetic waves irradiation device as a means for heating moisture adhered to the material and; at least one means selected from the group consisting of; (i) a gas blowing means for blowing gas on the material to be washed to remove water; (ii) a means for evacuating or reducing pressure applied to the material so that the moisture adhered to the material is removed; and (iii) a means for centrifuging the material so that the subject is spun-dried through centrifugation, all during or after heating by the electromagnetic wave-irradiation device.
Claim 12
Dependent Claim
68 words
A foam-suppressing apparatus comprising: an overflow vessel receiving an overflow from a washing vessel containing a surfactant-containing washing solution therein arranged in a washing circulation system of a washing apparatus; and a valve means provided at a liquid outlet portion of the overflow vessel for controlling a liquid level of the overflow vessel such that air is not entrapped in the washing solution effluent from the overflow vessel.
References Cited (Backward Citations)
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