WO2019098517A1 - Indicateur destiné à être fixé sur un matériau d'emballage de sorte que la décongélation d'un aliment congelé ou d'un produit alimentaire stocké congelé puisse être identifiée visuellement - Google Patents

Indicateur destiné à être fixé sur un matériau d'emballage de sorte que la décongélation d'un aliment congelé ou d'un produit alimentaire stocké congelé puisse être identifiée visuellement Download PDF

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Publication number
WO2019098517A1
WO2019098517A1 PCT/KR2018/010937 KR2018010937W WO2019098517A1 WO 2019098517 A1 WO2019098517 A1 WO 2019098517A1 KR 2018010937 W KR2018010937 W KR 2018010937W WO 2019098517 A1 WO2019098517 A1 WO 2019098517A1
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WO
WIPO (PCT)
Prior art keywords
indicator
thawing
attaching
discrimination
food
Prior art date
Application number
PCT/KR2018/010937
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English (en)
Korean (ko)
Inventor
홍창욱
최재혁
장명기
이주운
남택정
최정욱
Original Assignee
주식회사 디바이스넷
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
Priority claimed from KR1020170152473A external-priority patent/KR20190055591A/ko
Priority claimed from KR1020180109690A external-priority patent/KR102218602B1/ko
Application filed by 주식회사 디바이스넷 filed Critical 주식회사 디바이스넷
Publication of WO2019098517A1 publication Critical patent/WO2019098517A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • G01N21/80—Indicating pH value
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators
    • 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

Definitions

  • Embodiments of the present invention relate to an indicator capable of visually distinguishing whether food is thawed easily and conveniently, and more particularly, to an indicator for attaching a packaging material.
  • a frozen freight car is used for wholesale and retail distribution in a freezing warehouse.
  • the freezing temperature should be kept constant.
  • the temperature of the freezing room is not maintained due to malfunction or malfunction of the device during the distribution process, or the freezing room is not intentionally operated in order to reduce the transportation cost of the frozen lorry. If the food is not frozen, the temperature of the freezing room rises sharply, and the temperature of the food being transported and moving also rises, resulting in thawing.
  • the frozen food When the frozen food is defrosted, when the food is defrosted, the water contained in the tissue is discharged, so that the exuded liquid collects in the wrapping paper to visually deteriorate the appearance of the product, the loss of nutrients dissolved in the exudate occurs, , The fatty acid tread proceeds at the deep part, and the microorganisms contaminated on the surface easily propagate into the inside of the tissue. Also, when the ice is re-frozen, the thawed water is turned into ice again, and the physical properties of the tissue are further destroyed. Therefore, the temperature control of frozen foods must be very strictly observed.
  • a tube containing an acidic solution therein one end of which is sealed, the other end of the tube is opened, and the other end of the tube is sealed with a sealing material And the acidic solution is sealed so that the acidic solution does not elute below the first temperature; and an acidic discrimination indicator disposed near the other end of the tube and capable of visually discriminating a change in acidity through color change,
  • the packaging material attaching indicator of the packaging material may be provided.
  • the acidic solution may be an acetic acid solution at an edible concentration.
  • the acidic discrimination indicator may be a blue litmus test strip.
  • the sealing material may be a gelatin solution.
  • a base film comprising: a base film; an acid identification mark attached to an upper surface of the base film; a thawing discrimination index sheet affixed to an upper surface of the acid discrimination index sheet; And a cover film on which a moisture permeable region through which moisture can pass is formed in a part of the upper surface covered with the cover film.
  • the thawing determination indicator may be a sheet dried after being immersed in a citric acid solution.
  • the citric acid solution may be a 10 wt% to 20 wt% solution.
  • the thawing determination indicator is elongated along one direction, and the water passage region of the cover film may be formed only on one end of both ends of the thawing determination indicator.
  • a defrost prediction time indicator may be printed on a first area of the base film to which the acidic identification indicator is not attached.
  • an identification code may be printed on a second area of the base film to which the acidic identification indicator is not attached.
  • the controller analyzes the image to determine a thawing history of the frozen food, wherein the additional information includes information about a geographical position of the at least one terminal and a time at which the image was taken, and wherein the indicator for attaching the packaging material of the frozen food comprises: a base film; A thawing discrimination index sheet attached to an upper surface of the acid discrimination index sheet, and a moisture permeable portion capable of allowing water to pass through the upper surface of the thawing discrimination index sheet while covering the upper surface of the thawing discrimination index sheet
  • the thawing history statistic server of the frozen food including the cover film formed with the passage area / RTI >
  • the indicator for attaching the packaging material of the frozen food may be one in which an identification code is printed on a part of the base film where the acid identification indicator is not attached, And may include an image of the identification code.
  • a method of manufacturing a base film comprising the steps of: providing a base film; attaching an acidic discrimination index sheet to an upper surface of the base film; attaching a thawing discrimination index sheet to an upper surface of the acid discrimination index sheet; And attaching a cover film on the upper surface of the discrimination indication sheet, the cover film having a water passage region through which water can pass through a part of the covered upper surface.
  • the step of attaching the acidic discrimination index sheet to the upper surface of the base film may include a step of attaching a plurality of acid discrimination index sheets to the base film, wherein the step of attaching the indication sheet includes a step of attaching a plurality of thawing discrimination indication sheets corresponding to the upper surface of the plurality of acid discrimination index sheets, wherein the step of attaching the cover film comprises: And attaching a cover film corresponding to the cover film, wherein the method for manufacturing the indicator for attaching the packaging material of the frozen food further comprises a step of cutting the base film after the step of attaching the cover film to separate the plurality of indicators can do.
  • the step of attaching the acidic discrimination index sheet to the upper surface of the base film may include a step of attaching a plurality of acid discrimination index sheets to the base film
  • the step of attaching the indication sheet may include a step of attaching a plurality of thawing discrimination index sheets corresponding to the upper surface of the plurality of acid discrimination index sheets
  • the step of attaching the cover film comprises: And attaching a cover film to the base film and the cover film, wherein the method for manufacturing the indicator for attaching the packaging material of the frozen food comprises cutting the joint portion of the base film and the cover film to separate the plurality of indicators Step < / RTI >
  • an indicator that can easily and conveniently discriminate visually whether food and food ingredients are unintentionally thawed due to improper treatment during refrigeration distribution of food and food ingredients.
  • the indicator for attaching the packaging material according to the embodiments of the present invention is advantageous in that it is easy to manufacture, is inexpensive, and can not be tampered with unless the original packaging of the food is disassembled.
  • FIG. 1 is a view illustrating a method of manufacturing an indicator with a packaging material according to an embodiment of the present invention.
  • Fig. 2 is a view showing a packaging paper with three different embodiments, which are manufactured by varying the tube length of a packaging material attachment indicator capable of discriminating whether the food is thawed.
  • FIG. 3 is a view illustrating a method of using a packaging material attachment indicator according to an embodiment of the present invention.
  • Fig. 4 is a graph showing the change in the color of the blue litmus paper as the time elapses after freezing the package-attached indicator capable of determining whether the food is thawed for 24 hours at -20 < 0 & .
  • FIG. 5 is a side view of a packaging material attachment indicator capable of determining whether food is thawed according to an embodiment of the present invention.
  • FIGS. 6 and 7 are views showing a first surface of a packaging material attachment indicator and a second surface opposite to the first surface, according to an embodiment of the present invention.
  • FIG. 8 is a view showing an indicator for attaching a packaging material according to another embodiment of the present invention.
  • FIG. 9 is a view showing an indicator for attaching a packaging material according to another embodiment of the present invention.
  • FIG. 10 is a diagram showing a configuration of a system for determining whether a food is thawed according to an embodiment of the present invention.
  • FIGS. 11 and 12 are views for explaining a method for mass-producing a packaging material attachment indicator capable of determining whether food is thawed according to embodiments of the present invention.
  • Embodiments of the present invention relate to indicators capable of easily and visually discriminating whether or not thawing of foodstuffs and foodstuffs due to improper treatment of foodstuffs and foodstuffs during refrigeration and distribution.
  • a thawing discrimination indicator using a weakly acidic solution as a reagent for changing blue litmus test paper to red.
  • an indicator for attaching a packaging material of a frozen food including a tube containing an acidic solution therein and an acidic discrimination indicator disposed in the vicinity of the tube.
  • the tube has a structure in which one end is sealed and the other end is opened. After the acid solution is injected into the tube, the other end of the tube can be sealed with a sealing material.
  • the sealing material may be fused at a first temperature.
  • the first temperature may be room temperature (about 20 ° C).
  • the acidity discrimination indicator is a member disposed near the other end of the tube, and it is possible to visually discriminate a change in acidity through color change.
  • the acidic determination indicator may include, but is not limited to, a blue litmus test article, and may be replaced with another member capable of determining pH.
  • a blue litmus test paper for convenience of discussion.
  • a weakly acidic solution e.g., vinegar
  • a tube e.g., a plastic tube
  • An indicator can be provided that enables the sealed portion of the tube to break together when the food is thawed and the frozen weakly acidic solution to elute to change the blue litmus test paper to red so as to determine whether the tube is thawed.
  • the indicator it is possible to attach the indicator to the inside of the packaging material rather than to the outside (for example, by arranging a bonding material of a transparent material on the tube and the blue litmus test paper, The inner side of the frozen food packaging material is brought into contact with each other) so that the indicator can not be tampered with unless the original packaging of the frozen food is disassembled.
  • the acidic solution may be an edible acidic solution such as vinegar, organic acid, or the like.
  • the acidic solution is used to dissolve the acidic ice water (pH 4.0 or less) of the indicator attached to the packaging material when the food is defrosted, the deterioration of the frozen food can be determined if it changes to the blue litmus test paper and exhibits color change.
  • embodiments of the present invention can provide indicia (indicators) for temperature management during distribution of fish and processed products, meat and meat products, and other frozen foods.
  • acidic solution which can be used for food
  • various solutions having acidic characteristics such as vinegar, citric acid, lactic acid and the like can be used.
  • the concentration of the acidic solution may be 0.001 - 0.1% by weight, preferably acetic acid at a weight ratio of 0.001% to 0.1%. More preferably, the vinegar can be contained at a weight ratio of 0.01%.
  • the acidic solution may be composed of an organic acid which is allowed to use food such as citric acid, lactic acid and the like whose pH (pH) is in the range of pH 4.0.
  • the acidic discrimination indicator may be disposed along the same direction as the longitudinal direction of the tube at the other end of the tube.
  • the acid discrimination indicator may be a blue litmus test strip.
  • it may be a litmus test paper of a science laboratory textbook grade.
  • the litmus test paper is a universal tool to use as an elementary school science experiment manual, so it is easily available at a low cost.
  • the litmus test paper is a scientific experimental material that easily measures changes in pH (pH).
  • the red litmus paper changes color to blue under basic conditions and the blue litmus paper changes color from acid to red.
  • a blue litmus test paper turns red under acidic conditions (pH 7.0 or lower).
  • the blue litmus test paper can be used as an acid discrimination indicator of the present invention based on the principle that the changed red color does not return to blue again unless a basic reagent is supplied.
  • the tube or the like for holding the acidic solution is made of a material having flexibility, It is effective to prevent breakage.
  • an acidic solution in which acetic acid is diluted with distilled water may be sealed in a polypropylene tube or the like, and then attached to the packaging material.
  • the tube can be used by sealing the one end completely before injecting the acidic solution, injecting the solution, sealing the opposite inlet with a sealing material (for example, gelatine 10%), and attaching it to the packing material.
  • a sealing material for example, gelatine 10%
  • acetic acid was diluted with distilled water to a concentration of 0.01% by weight.
  • the blue litmus test paper was prepared by fixing on a filter paper cut to a width of 1 cm.
  • a polypropylene tube with a diameter of 3 mm was cut at 1.4, 1.7, and 2.0 cm, and one end was dissolved by using an alcohol lamp, followed by sealing.
  • 10, 30, and 50 microliters ( ⁇ L) of acetic acid solution was injected using a micro needle tip.
  • the open end of the tube filled with the acid solution was immersed in a 10% gelatin solution, which had been immersed in water at 45 ° C, and then hardened at room temperature to block the inlet.
  • the indicator may be completed by fixing the acidic solution tube with the litmus test paper at a gap of 2.0 mm in the margin of the filter paper with the blue litmus test paper as shown in FIG.
  • the length (ie, 1.2, 1.5, 1.8 cm) shown in FIG. 2 represents the length of the tube in the state in which one end of the polypropylene tube was tightly sealed and the capacity (ie, 10, 30, 50 ⁇ L) The amount of the acid solution is indicated.
  • a plurality of (for example, three) indicators may be attached to the packaging material in one set, or only one indicator may be attached to the packaging material.
  • the user can know whether thawing has occurred in the distribution process, depending on whether or not the blue litmus test paper is confirmed to be red, as shown in FIG.
  • the degree to which the blue litmus test paper changes according to the time when the wrapping paper being frozen is left at room temperature can be explained with reference to FIG.
  • the indicator manufactured according to the above example was attached to a polyvinyl vacuum packaging paper and then freezed for 24 hours in a -20 ° C freezer.
  • the frozen packaging paper was taken out and left at room temperature (20 ° C). After 30 minutes and 60 minutes, it was observed whether the acidic solution of the tube eluted as time elapsed.
  • 4 (A) shows a state after 30 minutes at room temperature (20 ° C)
  • FIG. 4 (B) shows a state after 60 minutes at room temperature (20 ° C).
  • Table 20 shows the results of 20 experiments in which the color change and the degree of change (length) during discrimination of the thawing presence indicator at room temperature were confirmed.
  • Tube length (amount of solution) The color change length (cm) of the blue litmus test paper during standing at room temperature Immediately after leaving 30 minutes 60 minutes 1.2 cm (10 [mu] L) 0 0.72 ⁇ 0.11 a
  • the indicator for attaching the packaging material that can visually discriminate the thawing of the frozen food or the frozen food raw material can be formed in a tubular structure.
  • the indicator of the tubular structure has a complicated manufacturing process as compared with the indicator of the sheet-like structure to be described below and is difficult to adhere firmly to the packaging paper of frozen food, the following embodiments described herein are devised .
  • FIG. 5 is a side view of a packaging material attachment indicator capable of determining whether food is thawed according to an embodiment of the present invention.
  • an indicator 100 for attaching a packaging material to a frozen food according to an embodiment of the present invention includes a base film 110, an acidic discrimination index sheet 120, a thawing discrimination index sheet 130, , And a cover film (140).
  • a base film 110 an acidic discrimination index sheet 120
  • a thawing discrimination index sheet 130 includes a base film 110, and a thawing discrimination index sheet 130, and a cover film (140).
  • the direction A in the direction shown in FIG. 5 is described as an upward direction and the direction A 'is described as a downward direction, it should be understood that the expression in the directions is only a relative one provided for the convenience of explanation.
  • the base film 110 may be a transparent film.
  • the base film 110 may be formed of, for example, a polyvinyl material.
  • An adhesive sheet (not shown) may be attached to the lower surface of the base film 110, an adhesive (not shown) may be applied, and the adhesive may be adhered to the inner surface of the package of the frozen food through an adhesive sheet or adhesive.
  • the upward direction i.e., direction A
  • the downward direction And may be attached so as to face the inner side of the package of the food.
  • the acidic discrimination index sheet 120 may be, for example, a blue litmus test strip. Blue Litmus test strips can turn red by reacting with acidic solutions.
  • the thawing determination indicator sheet 130 may be a sheet dried after being immersed in a citric acid solution.
  • the citric acid solution may be an edible citric acid solution, for example, the citric acid solution may be a 10 wt% to 20 wt% concentration solution. Since the embodiments of the present invention are attached to the inside of the packaging material of the frozen food, it is preferable to use an edible acidic solution such as vinegar or citric acid in manufacturing the thawing identification indicator 130.
  • the vinegar component tends to volatilize when the sheet is immersed in vinegar and then dried, so that it is more preferable to produce the thawing discrimination indicator 130 using citric acid rather than vinegar.
  • the thawing discrimination index sheet 130 is a sheet in which water is evaporated from the acidic solution components, even if the thawing discrimination index sheet 130 is in contact with the acid discriminating index sheet 120 in a dried state, the color of the acid discriminating index sheet 120 It does not change.
  • moisture is applied to the defrost determination indicator 130, moisture is added to the citric acid in an anhydrous state, so that the citric acid solution changes the hue of the acidic determination indicator sheet 120. In view of this point, it is possible to judge whether or not water is generated in accordance with the color change of the acid discrimination instruction sheet 120.
  • the color of the acid identification indicator 120 is changed by the acidic solution component of the defrost determination indicator 130 Based on these changes, it is possible to determine whether the frozen food is thawed.
  • the cover film 140 is attached to the upper surface of the thawing discrimination index sheet 130 to cover the thawing discrimination index sheet 130.
  • a portion of the cover film 140 may be configured such that a water passage region 150 through which moisture can pass therethrough is formed and the remaining region does not pass water.
  • the water passage area 150 may be composed of a region including a plurality of through holes.
  • the water passage region 150 may be formed only on a part of the cover film 140.
  • 130 may be elongated along one direction (direction B) and the water passage area 150 of the cover film 140 may be formed at one end (that is, at both ends) of the defrost determination indicator 130, One end).
  • the water passage area 150 of the cover film 140 may be formed at one end (that is, at both ends) of the defrost determination indicator 130, One end).
  • moisture since moisture is applied only through the water passage area 150 of the area where the cover film 140 is in contact with the frozen food, moisture can be gradually applied from one end of the defrost determination indicator sheet 130.
  • the length of the color change along the longitudinal direction becomes proportional to the time put in the thawing state.
  • the defrosting predictive time indicator 160 may be printed on an area of the base film 110 where the acidic discrimination index sheet 120 is not attached .
  • Exemplary times (0, 6hr, 12hr, 18hr, 24hr) are shown in FIG. 8, but this may of course vary according to the application.
  • an identification code 180 (for example, a QR code, a barcode, a bar code, etc.) is attached to an area of the base film 110 where the acidic discrimination index sheet 120 is not attached, Or the like) can be printed.
  • An embodiment utilizing the identification code 180 will be described below with reference to Fig.
  • FIG. 10 is a diagram showing a configuration of a system for determining whether a food is thawed according to an embodiment of the present invention.
  • the exemplary system may include a plurality of terminals 200-1 through 200-N and a server 300, and the terminal and the server may communicate with each other via a communication network (e.g., the Internet).
  • a communication network e.g., the Internet
  • the packaging material attachment indicators 100-1 to 100-N of the frozen food can be photographed through the terminals 200-1 to 200-N.
  • the indicators 100-1 to 100-N may be any one of the exemplary indicators 100 described with reference to FIGS. 5 to 9 above.
  • the user of the terminal 200-1 can photograph the indicator 100-1 attached to the packaging material of the frozen food he / she intends to purchase through the camera of the terminal 200-1, -1) to the server 300 via the communication network.
  • each of the indicators 200-2 to 200-N attached to the packaging material of the frozen food to be purchased by the users of the other terminals 200-2 to 200-N is connected to the terminals 200-2 to 200-N
  • the terminals 200-2 to 200-N can transmit the image to the server 300.
  • the indicators 100-1 to 100-N taken by the terminals 200-1 to 200-N can be the exemplary indicators 100 shown in FIG. 9.
  • the terminals 200-1 to 200-N May include an image of the acidic identification indicator 120 and an image of the identification code 180.
  • additional information may be transmitted along with the images.
  • the additional information may include information regarding the geographical position of the terminals 200-1 to 200-N and the time at which the image was photographed.
  • the server 300 can statistically extract the thawing history of the frozen food by region and time based on the image and the additional information received from the terminals.
  • the information analyzed and statisticalized by the server 300 may include information on the product information, the thawing (or thawing) time, geographical information, and time information.
  • the server 300 may analyze the image received from the terminals 200-1 to 200-N and may display an image of the frozen food product with the indicator 100 photographed by the user on the image of the identification code 180 Information can be confirmed.
  • the same identification code 180 for example, the same QR code
  • the server 300 may analyze the image received from the terminals 200-1 to 200-N and may display an image of the frozen food product with the indicator 100 photographed by the user on the image of the identification code 180 Information can be confirmed.
  • the same identification code 180 for example, the same QR code
  • the information about the thawing is determined based on whether or not the color of the acidity discrimination instruction sheet 120 has changed based on the image taken by one of the terminals (for example, 200-1) The extent of the change length).
  • the geographical information and time information can be statistically based on the information provided by the terminals 200-1 to 200-N (e.g., GPS information, current time information at the time of image capturing, etc.).
  • the terminal 200-1 shoots the indicator 100-1 attached to the packaging material of frozen mackerel in the Seoul area at 5:00 pm on Aug. 31, 2018 and sends it to the server 300, the following information May be recorded in the server 300.
  • thawing time Thawed (or thawed for about 3 hours)
  • the terminal 200-2 shoots the indicator 100-2 attached to the packaging material of frozen mackerel in the Incheon area at 7:00 pm on September 1, 2018 and sends it to the server 300, the following information An included record may be recorded in the server 300.
  • thawing time Thawed (or has been thawed for about 6 hours)
  • the server 300 Since the server 300 receives such information from a plurality of terminals 200-1 to 200-N, the server 300 can be used as a user of the server 300 or a user of the server 300 Thereby enabling to grasp the trend of thawing in the process of distribution of frozen food.
  • FIGS. 11 and 12 are views for explaining a method for mass-producing a packaging material attachment indicator capable of determining whether food is thawed according to embodiments of the present invention.
  • a method of manufacturing an indicator attached to a packaging material of a frozen food includes the steps of providing a base film 110 and attaching an acidic discrimination indicator 120 to an upper surface of the base film 110 A step of attaching a thawing discrimination indication sheet 130 to the upper surface of the acid discriminating indicative sheet 120 and a step of allowing moisture to pass through a part of the upper surface covered And then attaching the cover film 140 on which the moisture passage region 150 is formed.
  • the packaging material attachment indicator according to the embodiments of the present invention is manufactured in the form of a sheet, it can be advantageously manufactured in a large quantity as shown in FIGS.
  • a plurality of acidic discrimination index sheets 120 can be attached to the base film 110, and on the upper surface of the plurality of acidic discriminating index sheets 120, And the cover film 140 can be attached to the upper surface of each of the thawing discrimination index sheets 130, respectively.
  • the example shown in Fig. 11 shows a structure produced through this process. After the structure of FIG. 11 is manufactured, a plurality of indicators can be separated from each other through a process of cutting the base film 110.
  • a plurality of acidic discrimination index sheets 120 can be attached to the base film 110, and on the upper surface of the plurality of acidic discriminating index sheets 120, The paper 130 can be attached. 12, in the example of FIG. 12, one large cover film 140 may be attached so as to cover the entire plurality of thawing indication sheets 130.
  • the example shown in Fig. 12 shows the structure produced through this process. After the structure of FIG. 12 is manufactured, a plurality of indicators can be separated by cutting a joint portion (that is, an area between the indicators) of the base film 110 and the cover film 140.

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Abstract

L'invention concerne un indicateur configuré de sorte que la décongélation éventuelle d'aliments ou de produits alimentaires stockés ou mis en circulation congelés puisse être identifiée de façon aisée, pratique et visuelle. L'invention concerne plus particulièrement un indicateur dans lequel une solution sub-acide est placée dans un tube en plastique ; celui-ci est scellé, fixé sur un matériau d'emballage et relié à un papier réactif tournesol bleu ; et la décongélation des aliments brise la partie d'étanchéité du tube et élue la solution sub-acide congelée qui fait à son tour virer le papier réactif au rouge, ce qui permet d'identifier si l'aliment a été décongelé ou non. L'indicateur fixé sur un matériau d'emballage de sorte à faciliter l'identification visuelle de la décongélation des aliments est avantageux en ce qu'il peut être fabriqué facilement à faible coût et qu'il ne peut pas être contrefait/falsifié, sauf si l'emballage d'aliment d'origine est démonté. En outre, un mode de réalisation de la présente invention concerne un indicateur destiné à être fixé sur un matériau d'emballage d'aliments congelés, l'indicateur comprenant : un film de base ; une feuille d'identification/indication d'acidité fixée sur la surface supérieure du film de base ; une feuille d'identification/indication de décongélation fixée sur la surface supérieure de la feuille d'identification/indication d'acidité ; et un film de recouvrement qui recouvre la surface supérieure de la feuille d'identification/indication de décongélation, une zone de passage d'humidité étant formée sur une partie de la surface supérieure recouverte de sorte que l'humidité puisse la traverser.
PCT/KR2018/010937 2017-11-15 2018-09-17 Indicateur destiné à être fixé sur un matériau d'emballage de sorte que la décongélation d'un aliment congelé ou d'un produit alimentaire stocké congelé puisse être identifiée visuellement WO2019098517A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2017-0152473 2017-11-15
KR1020170152473A KR20190055591A (ko) 2017-11-15 2017-11-15 냉동식품 또는 냉동보관 중인 식품원료의 해동을 가시적으로 판별할 수 있는 포장재 부착 인디케이터
KR10-2018-0109690 2018-09-13
KR1020180109690A KR102218602B1 (ko) 2018-09-13 2018-09-13 냉동식품 또는 냉동보관 중인 식품원료의 해동을 가시적으로 판별할 수 있는 포장재 부착용 시트형 인디케이터

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