KR101413586B1 - Thin film type usable information indicator that use heat - Google Patents

Thin film type usable information indicator that use heat Download PDF

Info

Publication number
KR101413586B1
KR101413586B1 KR1020140051628A KR20140051628A KR101413586B1 KR 101413586 B1 KR101413586 B1 KR 101413586B1 KR 1020140051628 A KR1020140051628 A KR 1020140051628A KR 20140051628 A KR20140051628 A KR 20140051628A KR 101413586 B1 KR101413586 B1 KR 101413586B1
Authority
KR
South Korea
Prior art keywords
display unit
storage
temperature
usable information
unit
Prior art date
Application number
KR1020140051628A
Other languages
Korean (ko)
Inventor
정관용
정태휴
김영기
이미섭
박종명
Original Assignee
(주)인디텍코리아
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 (주)인디텍코리아 filed Critical (주)인디텍코리아
Priority to KR1020140051628A priority Critical patent/KR101413586B1/en
Application granted granted Critical
Publication of KR101413586B1 publication Critical patent/KR101413586B1/en

Links

Images

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
    • G01K11/12—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/02—Food
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F13/00—Apparatus for measuring unknown time intervals by means not provided for in groups G04F5/00 - G04F10/00

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

The present invention relates to a thin film type usable information indicator using heat. The present invention is configured to include a packing material that accommodates a fresh product; and a time-temperature indicator tag that is provided on one side of the packing material and displays usable information of the product when a development material is moved toward a display unit and comes into contact with a development medium as an adhesive force disappears due to temperature change at a point of time of attachment to the packing material or at a point of time of opening of the packing material to the outside. According to the present invention, usable information with respect to the product can be acquired with ease, convenience, and accuracy.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a thin film-

The present invention relates to a thin film type usable information indicator using heat, and more particularly, to a thin film type usable information indicator using heat, and more particularly, The adhesive force between the display portion and the sealing portion is extinguished by the temperature change due to UV irradiation, heating, water storage heat or low temperature maintenance, etc., so that the developing substance stored in the storage portion is moved to the developing medium side on the display portion side, The present invention relates to a thin film usable information indicator using a row so as to obtain available information on a product.

Generally, a fresh product that is maintained at a fresh state at the time of production is maintained at a product state at the time of shipment and is supplied to a consumer within a predetermined expiration date.

For example, fresh products such as dairy products, fish, fruits and medicines that are required to meet expiration dates are kept and stored in an undisturbed state in the distribution process.

Such fresh or frozen products must be adhered to by a specified shelf life or recommended temperature for refrigeration (hereinafter referred to as 'available information') from the time of shipment until they are supplied to consumers, It is very troublesome to maintain the recommended temperature and ensure that the product is distributed. In addition, if the product is corrupted or deteriorated by consumers because it is inaccurate and can not confirm the expiration date of the product, It is dangerous.

A conventional Gelatin Capsule type TTI tag (Time-Temperature Indicator Tag), which has been proposed to solve this problem, is operated by external pressure to burst and is thick, and a separate device for capping the capsule There is a problem in that it is inconvenient to use because it requires strong pressure in the process of popping the capsule, and it is difficult to distinguish visual before and after the start of operation so that it is impossible to provide accurate information of use of the product.

Korean Patent No. 10-0900110 (2009.05.22) Korean Registered Utility Model No. 20-0376192 (Feb. 4, 2005)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a time-temperature display device and a display device in which a time-temperature indicator is attached to a packaging material, The adhesive force to the sealing part is extinguished by the temperature change due to UV irradiation, heating, water heat storage or low temperature maintenance, etc., so that the developing substance stored in the storage part is moved to the developing medium side on the display part side and brought into contact with the developing medium, And to provide a thin film usable information indicator using one row so as to obtain available information.

According to an aspect of the present invention, there is provided a thin film usable information indicator using heat, comprising: a packaging material for storing a fresh product; The adhesive material is provided on one side of the packaging material and the developing material is moved to the display unit side due to the temperature change at the time of attaching the packaging material or opening the packaging material to the outside, A time-temperature indicator indicative of the temperature; Wherein the sealing part between the storage part in which the developing material is stored and the display part is annihilated by the temperature change depending on whether the UV irradiation, heating, water storage heat or low temperature maintenance is selectively performed and the communicating space The developing material is moved to the display unit side and is contacted with the developing medium, so that the usability information of the corresponding product can be confirmed.

Wherein the time-temperature indicator comprises: an attachment portion attached to one side of the packaging material; A peeling unit that is sealed at one side of the attachment unit and has a storage unit for storing development material therein and a display unit having a storage space formed at a position spaced apart from the storage unit; .

The development material is characterized by being made of any one of fatty acid, fatty acid ester and liquid paraffin which can be diffused in a certain temperature range.

In the storage space, development media of different colors may be arranged at regular intervals.

Wherein the development medium is a porous microporous film having voids.

The micro-for-loose films are spaced apart from each other at regular intervals, sequentially in contact with the development material moved from the closest to the development material moved from the storage unit, and become transparent so as to expose printed colors, can do.

When blue, yellow, and red are sequentially printed so as to exhibit normal, normal damage from a position close to the development material moved from the storage portion, the microporous film is heated to a temperature higher than a predetermined melting point Over time, it becomes transparent in a sequential contact with the developing material, exposing blue, yellow, and red to indicate whether the product is normal, normal, or damaged.

The microporous film can confirm that the product is distributed within a proper temperature as the developing material is not developed at a temperature lower than a predetermined melting point.

The microporous film can be determined whether the product is normal, normal, or damaged by setting the melting point of the surface to be melted in contact with the developing material in accordance with the normal, normal, or damaged state of the product.

The peeling unit is made of a UV-dicing tape. The UV-dicing tape exposes the storage unit to the sealing unit side between the storage unit and the display unit through UV irradiation, And the developing material on the storage unit side is moved to the display unit side.

The UV-dicing tape may adjust the extinction degree of the adhesive force between the storage part and the display part to the sealing part side by changing the color.

Wherein the peeling portion is made of a lubrication tape and the lubrication tape is heated to a predetermined temperature to extinguish the adhesive force between the storage portion and the display portion to the sealing portion, And the developing material on the negative side can be moved toward the display unit side.

Off tape, and the cool-off tape is maintained at a low temperature to extinguish the adhesive force between the storage unit and the display unit to the sealing unit, And the developing material on the negative side can be moved toward the display unit side.

Wherein the peeling portion is made of a shrink film and the shrink film extinguishes the adhesive force between the storage portion and the display portion due to heat generated during shrinkage, To the display unit side.

The attaching portion and the peeling portion of the time-temperature indicator are made of a flexible type of laminate structure and can be configured to have different degrees of hardness so that they can be attached corresponding to the flexibility of the product packaging material.

INDUSTRIAL APPLICABILITY As described above, according to the thin film type usable information indicator using the heat according to the present invention, it can be easily and conveniently attached to the packaging material of the fresh product or the frozen product through thinning.

The thin film type available information indicator using the heat according to the present invention has a storage part formed by eliminating the adhesive force due to a temperature change depending on whether UV irradiation, heating, water heat storage, or low temperature maintenance is performed selectively without a separate mechanism or equipment, Fatty acid esters or liquid paraffin are moved to the display unit side and are contacted with the development medium, the available information of the product (the shelf life of the product, the recommended temperature for refrigerated storage of the fresh product, The recommended temperature for refrigerated storage, etc.).

The thin film type usable information indicator using the heat according to the present invention includes the micro foreflue films of different colors arranged at a predetermined interval on the display unit side at a position spaced apart from the storage unit by a predetermined distance, It is possible to display the available information of the product in a sequential contact with the developed developing material from the order close to that of the developed product, so that it is possible to visually judge whether or not the product is abnormal.

The thin film type usable information indicator using the heat according to the present invention can be applied to a small product such as milk or yogurt by providing a laminate type and miniaturizing it to obtain necessary usable information.

The thin film type usable information indicator using the heat according to the present invention is structured such that the attaching portion and the peeling portion are of a flexible type having a laminated structure and can be attached in accordance with the flexibility of the product packaging material with different degree of hardness.

1 is a perspective view showing a thin film type usable information indicator using heat according to the present invention.
2 is a sectional view taken along the line A-A 'in Fig.
FIG. 3 is an enlarged view showing the "B" portion of FIG.
FIG. 4 is a view illustrating a state where a storage unit and a display unit are in communication with each other and a developing material is moved according to the present invention.
Fig. 5 is an enlarged view showing the portion "C" in Fig.
6 is a perspective view showing a state in which a thin film usable information indicator using heat according to the present invention is attached to a product.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The term is synonymous with the generic meaning of the term as understood by those of ordinary skill in the art to which the present invention pertains and if the term used herein conflicts with the general meaning of the term, And the same reference numerals throughout the specification denote like elements.

In addition, It is noted that the thin film type usable information indicator using heat can be implemented in various embodiments and is not limited to the embodiments described herein.

The thin film type usable information indicator 100 using the heat according to the present invention comprises a packaging material 110 for storing and storing a fresh product and a packaging material 110 provided on one side of the packaging material 110, A time-temperature indicator 120 (TTI tag) 120 for displaying usable information of the product in contact with the development medium 130b as the substance 130a moves toward the development medium 130b, .

The packaging material 110 is provided with a storage space of a predetermined size therein, stores the fresh product to be distributed in the storage space, stores and distributes the same.

The packaging material 110 may be variously prepared according to a fresh product stored in a box or a packaging container made of synthetic resin or the like.

The time-temperature indicator 120 is provided on one side of the packaging material 110. The adhesion of the developing material 120 (i.e., the time-temperature indicator 120) is reduced due to the temperature change at the time of attaching the packaging material 110 or opening the packaging material 110 130a are moved toward the display unit 128 and contacted with the development medium 130b to indicate availability information of the product (for example, the shelf life of the product, the recommended temperature for refrigerated storage of the fresh product, or the recommended temperature of the livestock product poultry) ).

The time-temperature indicator 120 includes an attachment part 122, a storage part 126 sealed on one surface of the attachment part 122, and a peeling part 124 provided with a display part 128.

The attachment portion 122 is attached to one side of the packaging material 110 for storing, storing, and distributing a fresh product or a frozen product.

The peeling section 124 is sealed on one side of the attachment section 122 and includes a storage section 126 for storing the development material 130a on one side and a storage section 126 for storing the development material 130a in a position spaced apart from the storage section 126 And a display unit 128 for displaying the image.

The development material 130a stored in the storage unit 126 may be composed of a fatty acid (fatty acid), a fatty acid ester (ester), or a liquid paraffin which can be developed (moved) within a predetermined temperature range. You can choose to use it.

Inside the display unit 128, a storage space 128a for storing the development medium 130b is provided. The development medium 130b stored in the storage space 128a is made of a porous microporous film having a void.

The micro-for-foil films are spaced apart at regular intervals and are sequentially brought into contact with the developing material 130a moved from the close order of the developing material 130a moved from the storing part 126, And displays the available information of the corresponding product (refer to an arrow mark in Fig. 5).

For example, the micro-for-loose film may be printed in blue, yellow, or red, which is set to indicate "normal → normal → damage" from a position close to the developing material 130a moved from the storage section 126 The transparent material is exposed to blue, yellow, and red through sequential contact with the developing material 130a as time elapses, so that the shelf life can be known.

If the melting point of the developing material 130a is 10 ° C (for reference, in the case of Korea, the recommended temperature for cold storage of fresh products is about 10 ° C, and in case of poultry products in livestock products, storage recommended by the Livestock Processing Law The temperature is about -2 ° C to 5 ° C), when the product is exposed at a temperature of 10 ° C or higher, the development material 130a is continuously expanded and contacted with the microporous film, Yellow ", and" red ", which means blue, yellow, and red, respectively. Thus, if the product is below 10 ° C, the development material 130a is not developed, It can be seen that

On the other hand, when the microporous film is in contact with the developing material 130a, the melting point of the surface is set to be different, and when the blue is melted, it is normal. When the yellow is melted, It may be possible to display the available information.

The developing method of the developing material 130a may be a UV-Dicing Tape, a Revalpha Tape, a Cool-Off Tape, or a UV- Shrink film and the like.

The UV-dicing tape extinguishes the adhesive force between the storage unit 126 and the display unit 128 to the sealing unit S side through ultraviolet (UV) irradiation so that the storage unit 126 and the display unit 128 The development material 130a on the side of the storage unit 126 can be moved to the display unit 128 side to contact the development medium 130b (see arrow a in FIG. 5).

The UV-dicing tape can adjust the extinction degree of the adhesive force between the storage portion 126 and the display portion 128 with respect to the sealing portion S side by changing the color.

The blasting tape is heated to a predetermined temperature to extinguish the adhesive force between the storage portion 126 and the display portion 128 to the sealing portion S side so that the storage portion 126 and the display portion 128 are connected The development material 130a on the side of the unit 126 is moved toward the display unit 128 so as to be brought into contact with the development medium 130b (see arrow a in FIG. 5).

The cool-off tape maintains a low temperature and extinguishes the adhesive force between the storage unit 126 and the display unit 128 to the sealing unit S side, thereby connecting the storage unit 126 and the display unit 128, The developing material 130a on the side of the display unit 126 is moved on the side of the display unit 128 (see arrow a in Fig. 5).

The shrink film extinguishes the adhesive force between the storage part 126 and the display part 128 due to the heat generated during the shrinkage to the sealing part S side, thereby connecting the storage part 126 and the display part 128, The development material 130a on the side of the display unit 126 can be moved toward the display unit 128 (see arrow a in Fig. 5).

The attachment portion 122 and the peeling portion 124 of the time-temperature indicator 120 having the above-described structure may be provided in a flexible type of a laminate structure, It is preferable to have different degrees of hardness.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, As shown in FIG.

100: Thin film usable information indicator,
110: packing material,
120: Time-temperature indicator,
122:
124: peeling portion,
126:
128:
130a: developing material,
130b: development medium,
S: Sealing part.

Claims (15)

A packaging material for storing fresh products;
The adhesive material is provided on one side of the packaging material and the developing material is moved to the display unit side due to the temperature change at the time of attaching the packaging material or opening the packaging material to the outside, A time-temperature indicator indicative of the temperature;
, ≪ / RTI &
The sealing portion between the storage portion storing the developing material and the display portion is extinguished by the temperature change depending on whether the UV irradiation, the heating, the water storage heat or the low temperature maintenance is performed selectively, and the sealing portion is communicated through the communicating space, The information on the available information of the product can be confirmed by being moved to the display unit side and coming into contact with the development medium.
The method according to claim 1,
The time-temperature indicator comprises:
An attaching portion attached to one side of the packaging material;
A peeling unit that is sealed at one side of the attachment unit and has a storage unit for storing development material therein and a display unit having a storage space formed at a position spaced apart from the storage unit;
And a display unit for displaying the information on the display unit.
3. The method of claim 2,
Wherein the developing material comprises any one of fatty acid, fatty acid ester, and liquid paraffin which can be diffused within a predetermined temperature range.
3. The method of claim 2,
Wherein the storage space is provided with development media of different colors at regular intervals.
5. The method of claim 4,
Wherein the development medium is made of a porous microporous film having voids.
6. The method of claim 5,
The micro-for-loose films are spaced apart from each other at regular intervals, sequentially in contact with the development material moved from the closest to the development material moved from the storage unit, and become transparent so as to expose printed colors, A thin - film usable information indicator using heat.
The method according to claim 6,
When blue, yellow, and red are sequentially printed so as to exhibit normal, normal damage from a position close to the development material moved from the storage portion, the microporous film is heated to a temperature higher than a predetermined melting point Thin, usable information indicator using columns that show normal, normal, or damaged status of the product by exposing blue, nolac, and red in a sequential contact with developing material over time.
The method according to claim 6,
Wherein the microporous film is a thin film type usable information indicator using heat to make it possible to confirm that the product is distributed within an appropriate temperature as the developing material is not developed at a temperature lower than a predetermined melting point.
The method according to claim 6,
The microporous film is formed of a thin film using heat which enables to check whether the product is normal, normal, or damaged by setting the melting point of the surface to be melted in contact with the developing material in accordance with the normal, Available information indicator.
3. The method of claim 2,
Wherein the peeling portion is made of a UV-dicing tape,
Wherein the UV-dicing tape exposes the developing material on the side of the storage unit to the display unit side by communicating the storage unit with the display unit by extinguishing the adhesive force between the storage unit and the display unit through UV irradiation to the sealing unit side Thin - film usable information indicator using moving.
11. The method of claim 10,
Wherein the UV-dicing tape adjusts the extinction degree of the adhesive force between the storage unit and the display unit by changing the color of the UV-dicing tape.
3. The method of claim 2,
Wherein the peeling portion is made of a blasting tape,
And the display unit is connected to the display unit via the display unit, and the display unit is connected to the display unit via the display unit. Thin - film usable information indicator using moving.
3. The method of claim 2,
Wherein the peeling portion is made of a cool-off tape,
The cool-off tape maintains a low temperature and extinguishes the adhesive force between the storage unit and the display unit to the sealing unit side, thereby connecting the storage unit and the display unit to move the developing material on the storage unit side toward the display unit Thin - film usable information indicator.
3. The method of claim 2,
Wherein the peeling portion is made of a shrinkable film,
The shrink film extinguishes the adhesive force between the storage part and the display part due to heat generated during shrinkage to the sealing part side so that the expansion material on the storage part side is moved toward the display part side by connecting the storage part and the display part. Thin - film usable information indicator.
3. The method of claim 2,
The temperature and temperature indicator has an attaching portion and a peeling portion which are made of a flexible type of a laminate structure and are made of a thin film type usable information indicator .







KR1020140051628A 2014-04-29 2014-04-29 Thin film type usable information indicator that use heat KR101413586B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140051628A KR101413586B1 (en) 2014-04-29 2014-04-29 Thin film type usable information indicator that use heat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140051628A KR101413586B1 (en) 2014-04-29 2014-04-29 Thin film type usable information indicator that use heat

Publications (1)

Publication Number Publication Date
KR101413586B1 true KR101413586B1 (en) 2014-08-07

Family

ID=51748611

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020140051628A KR101413586B1 (en) 2014-04-29 2014-04-29 Thin film type usable information indicator that use heat

Country Status (1)

Country Link
KR (1) KR101413586B1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180065291A (en) * 2016-12-07 2018-06-18 진스 주식회사 indicator for conforming freshness of chilled and frozen goods
CN108983589A (en) * 2017-05-31 2018-12-11 泛盛源株式会社 Time display
WO2019098517A1 (en) * 2017-11-15 2019-05-23 주식회사 디바이스넷 Indicator to be attached to packing material such that thawing of frozen food or food material stored frozen can be identified visually
KR20200058078A (en) * 2018-11-19 2020-05-27 한국식품연구원 Fresh food package
KR102219889B1 (en) * 2019-08-19 2021-02-24 동국대학교 산학협력단 Time-temperature integrator with valve type multi film
KR20220081561A (en) * 2020-12-09 2022-06-16 주식회사 예담케미칼 Device for indicating temperature change history

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110072776A (en) * 2009-12-23 2011-06-29 (주)인디텍코리아 Precision critical temperature indicator and manufacturing method thereof
KR101306896B1 (en) 2011-11-12 2013-09-10 농업회사법인 세양주식회사 Effective Period Indicater
KR20140020454A (en) * 2012-08-08 2014-02-19 (주)인디텍코리아 Indicator for sensing temperature

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110072776A (en) * 2009-12-23 2011-06-29 (주)인디텍코리아 Precision critical temperature indicator and manufacturing method thereof
KR101306896B1 (en) 2011-11-12 2013-09-10 농업회사법인 세양주식회사 Effective Period Indicater
KR20140020454A (en) * 2012-08-08 2014-02-19 (주)인디텍코리아 Indicator for sensing temperature

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180065291A (en) * 2016-12-07 2018-06-18 진스 주식회사 indicator for conforming freshness of chilled and frozen goods
CN108983589A (en) * 2017-05-31 2018-12-11 泛盛源株式会社 Time display
WO2019098517A1 (en) * 2017-11-15 2019-05-23 주식회사 디바이스넷 Indicator to be attached to packing material such that thawing of frozen food or food material stored frozen can be identified visually
KR20200058078A (en) * 2018-11-19 2020-05-27 한국식품연구원 Fresh food package
KR102263878B1 (en) 2018-11-19 2021-06-11 한국식품연구원 Fresh food package
KR102219889B1 (en) * 2019-08-19 2021-02-24 동국대학교 산학협력단 Time-temperature integrator with valve type multi film
KR20220081561A (en) * 2020-12-09 2022-06-16 주식회사 예담케미칼 Device for indicating temperature change history
KR102415311B1 (en) 2020-12-09 2022-06-30 주식회사 예담케미칼 Device for indicating temperature change history

Similar Documents

Publication Publication Date Title
KR101413586B1 (en) Thin film type usable information indicator that use heat
US9234806B2 (en) Critical temperature indicator and manufacturing method thereof
US7490575B2 (en) Combination freeze indicators
US7891310B2 (en) Freeze indicators, flexible freeze indicators, combination indicators and manufacturing methods
US20060286211A1 (en) Temperature sensing material
GB2452632A (en) Freeze indicators suitable for production
MX2012006585A (en) Food safety indicator.
NO331993B1 (en) Time-temperature indicator system
KR20140126551A (en) Temperature time indicator for confirming high pressure sterilization
KR20140129598A (en) Diffusing material unit cell, time-temperature indicator including the same and method for activating the time-temperature indicator
US9410852B2 (en) Freeze indicator
KR20150056255A (en) Quick response code function combined with the shelf life progress indicator and shelf life progress display method using the same
KR101813093B1 (en) Measurement labels for product freshness
US5857776A (en) Method and device for monitoring handling conditions
KR101248769B1 (en) An indicator for temperature variation and packing container comprising the same
EP1036017A1 (en) Package and method of making the same
KR101306896B1 (en) Effective Period Indicater
TWI579542B (en) Temperature sensing device and method of using the same
KR20140126547A (en) Diffusing material unit cell, method for manufacturing the same and time-temperature indicator including the same
KR20140020451A (en) Critical temperature indicator and stopper including the same
US20160235248A1 (en) Visual temperature indicator container and method
JP2005121477A (en) Low-temperature history indicator
KR20160033447A (en) Packing materials damage information indicator with reuse prevention function
EP0326874A1 (en) A package for heat perishable articles, particularly but not exclusively deep-frozen food articles

Legal Events

Date Code Title Description
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee