EP0111466A1 - Procédé de désodorisation - Google Patents

Procédé de désodorisation Download PDF

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Publication number
EP0111466A1
EP0111466A1 EP83850308A EP83850308A EP0111466A1 EP 0111466 A1 EP0111466 A1 EP 0111466A1 EP 83850308 A EP83850308 A EP 83850308A EP 83850308 A EP83850308 A EP 83850308A EP 0111466 A1 EP0111466 A1 EP 0111466A1
Authority
EP
European Patent Office
Prior art keywords
odour
air
container
odours
smell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP83850308A
Other languages
German (de)
English (en)
Other versions
EP0111466B1 (fr
Inventor
Ake Bresle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT83850308T priority Critical patent/ATE27318T1/de
Publication of EP0111466A1 publication Critical patent/EP0111466A1/fr
Application granted granted Critical
Publication of EP0111466B1 publication Critical patent/EP0111466B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F73/00—Apparatus for smoothing or removing creases from garments or other textile articles by formers, cores, stretchers, or internal frames, with the application of heat or steam 
    • D06F73/02—Apparatus for smoothing or removing creases from garments or other textile articles by formers, cores, stretchers, or internal frames, with the application of heat or steam  having one or more treatment chambers

Definitions

  • the present invention relates to a method and a device for removing undesirable odours from various materials, particularly smoke odour.
  • the common traditional method of removing undesirable odours is to ventilate the affected object. This method is based on the fact that, in order to perceive that a substance has an odour, it must have a certain volatility at normal temperatures and thus be able to pass from solid or liquid form into gas form and then through air circulation finally end up in the nose of the person sensing the smell. Solid substances which do not have such volatility therefore do not smell.
  • vapour pressure which is the same as volatility
  • this does not, however, mean that it will be perceived as smelling by the human sense of smell.
  • Pure water has high volatility but is not considered to have any smell. No explanation has been forthcoming as to why certain substances smell and others do not.despite a measurable volatility.
  • the amount of a gas required to produce a smell sensation varies considerably from one substance to another.
  • Aceton a common solvent, has a characteristic and rather pleasant smell.
  • Its threshold value i.e. the content in the air at which the smell is just perceivable, lies at a level of about 100 mg aceton per m 3 air.
  • a chemically similar substance but with an entirely smell is butyric acid, having a threshold value of 0.001 mg butyric acid gas per m 3 air. The nose is thus 100 000 times more sensitive to this gas, and no one knows why.
  • the smoke-damaged jacket 1 is enclosed in a sealed container 2 which can be connected via a pipe connection 3 to a vacuum.
  • a sealed container 2 which can be connected via a pipe connection 3 to a vacuum.
  • the smell-producing components which have adhered to the outer and inner surfaces of the textile material are vapourized to a greater or lesser degree.
  • the vapourization takes place more quickly in a vacuum than at atmospheric pressure since air molecules no longer obstruct or retard the evaporation of the smell-producing components. An equilibrium is quickly achieved between the remaining adsorbed substance and the evaporated substance.
  • the container is pressurized to atmospheric pressure with clean air.
  • This air will now be drawn even into the pores of the textile material and there absorb additional vapourized, odouriferous material from the surfaces of the textile fibers.
  • a cooling loop 5 is also mounted in the container, and its surface temperature is kept suitably at -10 - -20°C.
  • the evacuation can be shut off or kept at low capacity, since the gases freed from the textile material, the odour substances, water vapour etc., will condense on the surface of the cooling loop in accordance with the cold wall principle. This also produces a lower pressure than what a simple vacuum pump normally produces.
  • bars 6 can be mounted inside the container.
  • the unit according to the invention can be made both for stationary and portable use and thus can be quickly implemented for cleaning operations at out-of-the-way locations.
  • the only requirement is that the container must be airtight and sufficiently strong to withstand the external air pressure when evacuated.
  • the method according to the invention produces a much more rapid and effective odour removal than what was previously possible.
  • the method has also in certain cases been improved upon further, by using various chemicals at the same time.
  • When removing odours from smoke-damaged material it is possible to add small amounts of ozone to the air left into the container.
  • small amounts of ammonia can be added to neutralize the odour-producing substances and thus facilitate cleaning.
  • the invention has been studied experimentally with regard to the removal of aggressive hydrocloric acid gas from textile materials.
  • hydrocloric acid gas is produced from the heated plastic. This gas is eagerly absorbed on both metal surfaces and in porous material.
  • the following experiment was carried out.
  • the results are explained as follows.
  • the major portion of the butyric acid can be evacuated as a gaseous mixture of water and butyric acid.
  • the remaining butyric acid which still produces odour must, however, be removed by chemical means, in this case by conversion, with the aid of ammonia, of butyric acid to ionogenic form, whereafter it can be converted by methylization to a butyric acid derivative of considerably lower odour intensity.
  • the suggested evacuation technique in combination with pressurization with specific chemicals thus makes it possible to eliminate difficult odour problems.
  • the invention has been used in practice in connection with a fire in a carpet store, where a number of valuable carpets were smoke-damaged so as to be unsalable. Odour- cleaning according to the invention, where the temperature of the heat loop was kept at 40 C, and of the cooling loop at -20°C, and small amounts of ammonia gas were added, made the carpet practically odour-free in a few hours.
  • the smell of solvent from dry-cleaning can be removed in the same manner from textile materials.
  • the material can be perfumed in various ways, e.g. plastic material can be made to smell of leather.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Treating Waste Gases (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
EP83850308A 1982-11-26 1983-11-16 Procédé de désodorisation Expired EP0111466B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83850308T ATE27318T1 (de) 1982-11-26 1983-11-16 Desodorisationsverfahren.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8206750 1982-11-26
SE8206750A SE8206750D0 (sv) 1982-11-26 1982-11-26 Anleggning for bortventilation av lukter t ex fran brender, i textilt och annat porost material

Publications (2)

Publication Number Publication Date
EP0111466A1 true EP0111466A1 (fr) 1984-06-20
EP0111466B1 EP0111466B1 (fr) 1987-05-20

Family

ID=20348755

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83850308A Expired EP0111466B1 (fr) 1982-11-26 1983-11-16 Procédé de désodorisation

Country Status (4)

Country Link
EP (1) EP0111466B1 (fr)
AT (1) ATE27318T1 (fr)
DE (1) DE3371656D1 (fr)
SE (1) SE8206750D0 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990012143A1 (fr) * 1989-04-04 1990-10-18 Vierling Paul F Procede et dispositif pour le traitement ulterieur de vetements nettoyes a sec

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1404168A1 (de) * 1959-06-15 1968-10-03 Siemens Elektrogeraete Gmbh Waeschetrockner od.dgl.
US3417481A (en) * 1966-06-16 1968-12-24 Joseph F. Rumsey Jr. Attachment for dryers or the like
US3513669A (en) * 1967-12-29 1970-05-26 Dhj Ind Inc Apparatus for vapor phase treatment of articles
FR2059841A5 (en) * 1970-06-26 1971-06-04 Koenig Alfred Freshening and sterilizing clothes using ozone
US3583180A (en) * 1969-12-29 1971-06-08 Alva G Arbogast Solution injection means for drycleaning and laundry tumble drying and deodorizing machines
DE2218440B1 (de) * 1972-04-17 1973-06-28 Wilhelm Dr.-Ing. 5340 Bad Honnef Lepper Verfahren zum Trocknen von Wasche oder dgl und Vorrichtung zur Durch führung des Verfahrens
DE2215269A1 (de) * 1972-03-25 1973-10-11 Geb Grandke Rosemarie Nolle Verfahren und vorrichtung zum auffrischen von kleidung
US4009002A (en) * 1973-01-15 1977-02-22 United Merchants And Manufacturers, Inc. Process for treating textile fabric to retard inflammability
US4096714A (en) * 1976-12-03 1978-06-27 Nirenberg Robert P Self-contained garment treating apparatus
US4257173A (en) * 1979-08-27 1981-03-24 Smith Derrick A No-heat clothes dryer

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1404168A1 (de) * 1959-06-15 1968-10-03 Siemens Elektrogeraete Gmbh Waeschetrockner od.dgl.
US3417481A (en) * 1966-06-16 1968-12-24 Joseph F. Rumsey Jr. Attachment for dryers or the like
US3513669A (en) * 1967-12-29 1970-05-26 Dhj Ind Inc Apparatus for vapor phase treatment of articles
US3583180A (en) * 1969-12-29 1971-06-08 Alva G Arbogast Solution injection means for drycleaning and laundry tumble drying and deodorizing machines
FR2059841A5 (en) * 1970-06-26 1971-06-04 Koenig Alfred Freshening and sterilizing clothes using ozone
DE2215269A1 (de) * 1972-03-25 1973-10-11 Geb Grandke Rosemarie Nolle Verfahren und vorrichtung zum auffrischen von kleidung
DE2218440B1 (de) * 1972-04-17 1973-06-28 Wilhelm Dr.-Ing. 5340 Bad Honnef Lepper Verfahren zum Trocknen von Wasche oder dgl und Vorrichtung zur Durch führung des Verfahrens
US4009002A (en) * 1973-01-15 1977-02-22 United Merchants And Manufacturers, Inc. Process for treating textile fabric to retard inflammability
US4096714A (en) * 1976-12-03 1978-06-27 Nirenberg Robert P Self-contained garment treating apparatus
US4257173A (en) * 1979-08-27 1981-03-24 Smith Derrick A No-heat clothes dryer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990012143A1 (fr) * 1989-04-04 1990-10-18 Vierling Paul F Procede et dispositif pour le traitement ulterieur de vetements nettoyes a sec

Also Published As

Publication number Publication date
EP0111466B1 (fr) 1987-05-20
DE3371656D1 (en) 1987-06-25
SE8206750D0 (sv) 1982-11-26
ATE27318T1 (de) 1987-06-15

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