CA2260184A1 - Procede et indicateur de cycle gel-degel - Google Patents

Procede et indicateur de cycle gel-degel Download PDF

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Publication number
CA2260184A1
CA2260184A1 CA002260184A CA2260184A CA2260184A1 CA 2260184 A1 CA2260184 A1 CA 2260184A1 CA 002260184 A CA002260184 A CA 002260184A CA 2260184 A CA2260184 A CA 2260184A CA 2260184 A1 CA2260184 A1 CA 2260184A1
Authority
CA
Canada
Prior art keywords
microcapsule walls
indicator
freeze
undergone
color change
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.)
Abandoned
Application number
CA002260184A
Other languages
English (en)
Inventor
Amiram Carmon
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.)
Merck Patent GmbH
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
Publication of CA2260184A1 publication Critical patent/CA2260184A1/fr
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/06—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using melting, freezing, or softening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/008—Alarm devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

La présente invention concerne un procédé permettant d'indiquer si un article alimentaire a subi une séquence gel-dégel, et consistant à appliquer sur l'article alimentaire un indicateur comportant un premier matériau (3) enfermé entre des parois en microcapsules (4) et un second matériau (5) séparé habituellement du premier matériau par lesdites parois en microcapsules. Les deux matériaux contiennent des substances qui, lorsqu'elles se rencontrent, produisent un changement de couleur, étant toutefois normalement séparées les unes des autres par les parois en microcapsules. Le premier matériau possède de surcroît un liquide, de l'eau de préférence qui, lorsqu'elle gèle se gonfle suffisamment pour rompre les parois en microcapsules (figure 26). De ce fait, lorsque le premier matériau a subi un cycle gel-dégel, il entre en contact avec le second matériau produisant ce changement de couleur indiquant que l'article alimentaire a fait l'objet d'une séquence gel-dégel.
CA002260184A 1996-07-11 1997-07-08 Procede et indicateur de cycle gel-degel Abandoned CA2260184A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL118840 1996-07-11
IL11884096A IL118840A0 (en) 1996-07-11 1996-07-11 A colored indication for possible spoilage of frozen foods

Publications (1)

Publication Number Publication Date
CA2260184A1 true CA2260184A1 (fr) 1998-01-22

Family

ID=11069066

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002260184A Abandoned CA2260184A1 (fr) 1996-07-11 1997-07-08 Procede et indicateur de cycle gel-degel

Country Status (7)

Country Link
EP (1) EP0886768A4 (fr)
JP (1) JP2003519461A (fr)
AU (1) AU757162B2 (fr)
BR (1) BR9711806A (fr)
CA (1) CA2260184A1 (fr)
IL (1) IL118840A0 (fr)
WO (1) WO1998002722A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20000317U1 (de) * 2000-01-08 2001-06-07 Trender, Joachim, Dipl.-Kaufm., 56077 Koblenz Vorrichtung zur bleibenden, dauerhaften Detektion und Darstellung einer Über-/Unterschreitung einer fest vorgegebenen Temperatur
US6679070B1 (en) * 2002-08-29 2004-01-20 Winterlab Method for identifying thawed and refrozen products
DE102006045821A1 (de) * 2006-09-28 2008-04-03 Wötzer, Philipp Anzeigevorrichtung und Gefriergutverpackung
US8430053B2 (en) * 2010-09-30 2013-04-30 Temptime Corporation Color-changing emulsions for freeze indicators
RU2538450C1 (ru) * 2013-10-16 2015-01-10 Игорь Николаевич Кочергин Индикатор холода
JP2015159803A (ja) * 2014-02-28 2015-09-07 三菱レイヨン株式会社 冷凍品が解凍された回数を判別するための核酸及び該核酸を用いた冷凍品が解凍された回数を判別する方法
DE102016005075A1 (de) 2016-04-27 2017-11-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren und Vorrichtung zur Temperaturüberwachung einer kryokonservierten biologischen Probe
DE102016005078A1 (de) 2016-04-27 2017-11-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zur Temperaturüberwachung einer kryokonservierten biologischen Probe
DE102016005133A1 (de) 2016-04-27 2017-11-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren und Vorrichtung zur Temperaturüberwachung einer kryokonservierten biologischen Probe
DE102016005070A1 (de) 2016-04-27 2017-11-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zur Temperaturüberwachung einer kryokonservierten biologischen Probe
CN112396949A (zh) * 2019-08-13 2021-02-23 余丽 一种环境友好型低温保护失效提示标签的激活方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3177843A (en) * 1964-02-13 1965-04-13 Robert S Geocaris Frozen food indicator
US3786777A (en) * 1970-12-31 1974-01-22 Artech Corp Irreversible warm-up indicator
US3888631A (en) * 1972-04-11 1975-06-10 Oskar Edwin Sturzinger Temperature indicator
US3844718A (en) * 1972-05-01 1974-10-29 H Cohen Frozen food defrosting indicator
US3967579A (en) * 1975-10-29 1976-07-06 Stanton H. Kaye Telltale device
US4022149A (en) * 1976-02-06 1977-05-10 Lee Berger Thaw indicator
US4145918A (en) * 1976-09-07 1979-03-27 Akzona Incorporated Freeze-thaw indicator
US4163427A (en) * 1977-12-05 1979-08-07 Isadore Cooperman Freeze-thaw indicator apparatus
US4327117A (en) * 1980-03-18 1982-04-27 Lenack Roger D Thaw indicator for frozen foods
GB8410548D0 (en) * 1984-04-25 1984-05-31 Ciba Geigy Ag Colourable assembly
US5325721A (en) * 1993-02-17 1994-07-05 Minnesota Mining And Manufacturing Company System for indicating exposure to preselected temperatures or tampering

Also Published As

Publication number Publication date
EP0886768A4 (fr) 1999-09-15
AU757162B2 (en) 2003-02-06
IL118840A0 (en) 1996-10-31
JP2003519461A (ja) 2003-06-17
WO1998002722A1 (fr) 1998-01-22
AU3272197A (en) 1998-02-09
EP0886768A1 (fr) 1998-12-30
BR9711806A (pt) 1999-08-24

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued