KR101798933B1 - Kimchi container and producing method for the same - Google Patents

Kimchi container and producing method for the same Download PDF

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Publication number
KR101798933B1
KR101798933B1 KR1020150174998A KR20150174998A KR101798933B1 KR 101798933 B1 KR101798933 B1 KR 101798933B1 KR 1020150174998 A KR1020150174998 A KR 1020150174998A KR 20150174998 A KR20150174998 A KR 20150174998A KR 101798933 B1 KR101798933 B1 KR 101798933B1
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KR
South Korea
Prior art keywords
cover film
kimchi
present
storage container
gas
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KR1020150174998A
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Korean (ko)
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KR20170068142A (en
Inventor
유승란
김재환
한응수
양지희
이혜진
정수연
Original Assignee
한국식품연구원
(사)광주명품김치산업화사업단
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Priority to KR1020150174998A priority Critical patent/KR101798933B1/en
Publication of KR20170068142A publication Critical patent/KR20170068142A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/50—Containers, packaging elements or packages, specially adapted for particular articles or materials for living organisms, articles or materials sensitive to changes of environment or atmospheric conditions, e.g. land animals, birds, fish, water plants, non-aquatic plants, flower bulbs, cut flowers or foliage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/38—Removing material by boring or cutting
    • B23K26/382—Removing material by boring or cutting by boring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/02—Wrappers or flexible covers
    • B65D65/22—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/22—Details
    • 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
    • G01N31/221—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 for investigating pH value
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2205/00—Venting means
    • B65D2205/02—Venting holes

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Biophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Evolutionary Biology (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Toxicology (AREA)
  • Zoology (AREA)
  • Packages (AREA)

Abstract

The present invention relates to a kimchi storage container and a method of manufacturing the same. More particularly, the present invention relates to a kimchi storage container and a method of manufacturing the same, So that the gas due to fermentation during distribution and storage can be discharged more easily, thereby preventing expansion of the storage container and thereby giving a good impression to the consumer.

Description

[0001] KIMCHI CONTAINER AND PRODUCING METHOD FOR THE SAME [0002]

The present invention relates to a kimchi storage container and a method of manufacturing the same. More particularly, the present invention relates to a kimchi storage container and a method of manufacturing the same, So that the gas due to fermentation during distribution and storage can be discharged more easily, thereby preventing expansion of the storage container and thereby giving a good impression to the consumer.

Generally, in the case of kimchi, carbon dioxide and other gases are generated during fermentation.

The storage container for storing the kimchi during the storage or distribution process is expanded due to the generation of the gas, which makes the appearance of the storage container unfavorable.

In order to solve such a problem, conventionally, the generation of gas is suppressed by disinfection of the kimchi. However, in the case of the conventional technology, there is a problem that the ripening of the kimchi is hindered and the taste of the kimchi is bad.

In addition, a method of disposing an absorbent material for absorbing the carbon dioxide gas has been attempted. However, in this case, there is a problem that a part of the kimchi is dried or the taste of the kimchi is changed.

In order to solve the above-mentioned problems, Korean Utility Model Registration Application No. 20-1998-0003175 proposes a technique of using a laser to form a plurality of fine exhaust holes to exhaust the gas. However, There is a problem that it is difficult to exhaust a sufficient amount of gas only by the configuration of the exhaust hole, thereby expanding the storage container.

Further, in the case of the above-described conventional technique, a fine exhaust hole is formed by using a laser. However, in the case where there are many exhaust holes, it takes a lot of time and effort to process the exhaust hole.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is therefore an object of the present invention to provide a cover film covering a storage container with a linear gas discharge portion to prevent expansion of the storage container, The present invention provides a kimchi storage container and a manufacturing apparatus thereof.

However, the object of the present invention is not limited to the above-mentioned object, and another object which is not mentioned can be clearly understood by those skilled in the art from the following description.

In order to accomplish the above object, the present invention provides a cover film (110) disposed on a storage part (120) for storing a kimchi, wherein the cover film (110) (112), and the storage part (120) is disposed on the bottom surface of the linear gas discharging part (112). The storage part (120) is characterized in a kimchi storage container including a scratch line (124)

At this time, the linear gas discharging unit 112 may include a plurality of micro-perforations (H).

The cover 120 has a plate shape and is covered with the cover film 110 so that the adhesive surface 121 on which the scratch line 124 is formed and a part of the adhesive surface 121 are exposed Further comprising a plurality of adhesive protrusions (122) formed on the adhesive surface (121) and in contact with the bottom surface of the cover film (110), the storage container (123) 123 may be arranged so as to be spaced apart from each other by a predetermined distance.

Also, the volume of the storage container 123 may be larger than the volume of the kimchi.

The indicator film 130 may further include an indicator 130 attached to a bottom surface of the linear gas discharging portion 112 of the cover film 110. The indicator 130 may include a pH discoloration film 131 and the pH discoloration film 131 And a plurality of discharge holes 132 formed in the plurality of discharge holes.

It is also possible to use at least one selected from methyl red, methyl orange, bromocresol green and methacresol purple as the pH discoloration film 131.

The method of manufacturing the storage container according to the present invention may further comprise a first step of finely puncturing the cover film 110 to form a linear gas discharge unit 112, The first step is another feature of the method for manufacturing the container container in which the cover film 110 is micro-punched using a laser.

The first step is a step of irradiating the time-divided laser beam onto the cover film 110 after passing through the acoustooptic modulator 220 for splitting the laser oscillated by the laser oscillator 210, The acoustooptic modulators 220 are arranged in a plurality of directions along the laser oscillation direction to divide the laser beam into a plurality of laser beams, It is also possible to form a plurality of linear gas discharging portions 112 in the cover film 110 while transferring the cover film 110 in a specific direction.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

Prior to that, terms and words used in the present specification and claims should not be construed in a conventional and dictionary sense, and the inventor may properly define the concept of the term in order to best explain its invention It should be construed as meaning and concept consistent with the technical idea of the present invention.

According to the present invention described above, more stable distribution and storage can be achieved.

1 is an exploded perspective view of a storage container according to an embodiment of the present invention,
FIG. 2 is an exploded perspective view showing a cover film and an indicator separated from each other as a storage container according to an embodiment of the present invention, FIG.
FIG. 3 is a schematic view illustrating a laser punching apparatus for fine punching according to an exemplary embodiment of the present invention. Referring to FIG.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

In addition, the following embodiments are not intended to limit the scope of the present invention, but merely as exemplifications of the constituent elements set forth in the claims of the present invention, and are included in technical ideas throughout the specification of the present invention, Embodiments that include components replaceable as equivalents in the elements may be included within the scope of the present invention.

FIG. 1 is a perspective view of a storage container according to an embodiment of the present invention. FIG. 2 is a perspective view illustrating a cover film and an indicator according to an embodiment of the present invention. FIG. 3 is a schematic view illustrating a laser punching apparatus for fine punching according to an embodiment of the present invention. Referring to FIG.

Example

The kimchi storage container 100 of the present invention includes a cover film 110 disposed on a storage part 120 where the kimchi is stored as shown in FIG. At this time, the cover film 110 includes a linear gas discharging part 112 formed linearly and discharging gas.

That is, a cover film 110 capable of discharging gas is disposed in the storage part 120 in which the kimchi is stored, so that the carbon dioxide generated by the maturing of the kimchi is discharged to the outside.

The storage unit 120 includes a scratch line 124 disposed on a bottom surface of the linear gas discharge unit 112 and having a concave shape.

According to the present invention, the scratch line 124 is formed on the bottom surface of the linear gas discharging unit 112 so that the discharged gas can be easily introduced and discharged through the linear gas discharging unit 112.

According to the present invention, the gas can be discharged more readily than in the prior art, thereby reducing the risk of damage to the kimchi storage container.

Meanwhile, the linear gas discharging unit 112 may have a plurality of micro-perforations H arranged in a linear shape at regular intervals.

That is, the micro-perforations (H) are formed for exhausting gas, and the micro-perforations (H) are formed in a plurality of the micro-perforations (H).

Such a micro-perforation H can be formed by a laser device, and such a laser perforating device will be described later.

As shown in FIG. 1, the storage unit 120 may have various shapes, but it may have a plate shape so that the cover film 110 is adhered to the adhesive surface (121), and a storage container (123) in which a part of the adhesive surface (121) is recessed to store the kimchi.

At this time, a plurality of adhesive protrusions 122 may be formed on the adhesive surface 121 so as to be in contact with the bottom surface of the cover film 110.

In other words, when the cover film 110 is fused to the adhesive surface 121, a part of the bottom surface of the cover film 110 is brought into contact with the adhesive protrusion 122 of the adhesive surface 121.

According to the present invention, the cover film 110 in contact with the adhesive protrusion 122 is weaker in adhesive force than the cover film 110 in contact with the adhesive surface 121, so that the user can more easily remove the cover film 110 .

Further, since a minute space is formed between the adhesive protrusion 122 and the cover film 110, the gas can be discharged along the minute space.

Accordingly, since the gas is firstly discharged by the linear gas discharging unit 112 of the present invention and the gas is discharged by the adhesive protrusion 122, the storage container of the present invention can not generate excessive pressure It is possible to prevent the damage caused by the damage.

The adhesive protrusion 122 may be formed around the adhesive surface 121 or may be formed only on a part of the adhesive surface 121 as shown in FIG.

 The storage container 123 is for storing the kimchi as described above, and may be arranged to be spaced apart as a pair as shown in the figure.

In this case, the linear gas discharging unit 112 may be formed as a pair as shown in FIG. 1, and the volume of the storage container 123 is preferably larger than the volume of the kimchi.

This is because it takes some time between the generation of the gas in the kimchi and the discharge of the gas in the kimchi, so that the volume of the storage container 123 is made larger than the volume of the kimchi so that the stagnant gas can be received.

According to the present invention, the cover film 110 is provided with a linear gas discharging portion 112. The linear gas discharging portion 112 is formed in the cover film 110 so as to be adhered to the storage container 123 and the storage container 123 Or may be formed at a position corresponding to the surface 121.

1, the linear gas discharging unit 112 is formed on the cover film 110 covering the storage container 123, as well as on the adhesive surface 121 adjacent to the cover container 123 And is also formed on the cover film 110 that covers it.

The cover film 110 is formed on the adhesive surface 121 so that the gas can be easily discharged through the linear gas discharging unit 112 formed on the cover film 110 covering the adhesive surface 121, Described scratch line 124 so as to be opposed to the linear gas discharging portion 112 of the gas discharging portion 110.

In other words, the linear gas discharging portion 112 formed at the position of the adhesive surface 121 and the scratch line 124 are formed to be in contact with each other.

According to the present invention, the gas flows along the scratch line 124 having a concave shape and then is discharged to the outside through the linear gas discharging unit 112.

As a result, according to the present invention, the linear gas discharging unit 112 discharges gas even at the position where the storage container 123 is formed, and also discharges gas along the scratch line 124 at the adjacent adhesive surface 121 So that the gas discharge efficiency can be improved.

As described above, according to the present invention, it is possible to effectively exhaust the gas and to prevent breakage due to excessive pressure.

On the other hand, the user often wants to know the degree of aging of the kimchi contained in the storage container. That is, there is a desire to select properly matched kimchi. In order to cope with this, there is an indicator (not shown) attached to the bottom surface of the linear gas discharging part 112 of the cover film 110, 130).

At this time, the indicator 130 can use various constructions that can show the degree of maturing of the kimchi, but it is also possible to use the pH discoloration film 131.

As is well known, the pH discoloration film 131 is a material having a function of changing the color depending on pH, and various known simple compounds are used. The principle of these is that the original substance structure Is changed in structure due to the presence of an acidic or basic substance and changes the color of the region to absorb the visible light.

However, when the pH-discolorable film has hydrophilic properties, it is important to prepare a solid compound which is not soluble in water or a solvent because of the problem that it is dissolved when it comes into contact with the kimchi.

More specifically, it is preferable to make methyl red, methyl orange, bromocresol green, methacresol purple and the like into a film, and as the acrylic resin monomer, for example, For example, acrylic acid, methacrylic acid, maleic acid, itaconic acid, monomers having a hydroxyl group, hydroxyethyl methacrylate, hydroxypropyl methacrylate, hydroxyethyl acrylate, hydroxy Examples of the monomer having an amide group include acrylamide, methylol acrylamide, diacetone acrylamide, and glycidyl methacrylate as a monomer having a glycidyl group. Also, all of the acrylic monomers having a double bond can be used as the components for emulsifying to polymerize.

In addition, since the pH discoloration film 131 of the present invention is attached to the bottom surface of the linear gas discharging unit 112, it is also possible to form a plurality of discharge holes 132 in the pH discoloration film 131 in order to allow gas to pass therethrough Do.

That is, the gas generated in the storage container 123 is discharged through the discharge hole 132 of the pH discoloration film 131 and the linear gas discharge unit 112, The color of the pH discolorable film 131 is changed so that the user can grasp the degree of maturity of the kimchi.

On the other hand, it is also possible for the user to place a color indication table according to the degree of maturity on the cover film 110 so that the user can more easily grasp the degree of maturing by the indicator 130 of the present invention.

In the present invention, since the storage containers 123 are formed as a pair, the indicator 130 can also be arranged in pairs.

Hereinafter, a method of manufacturing the storage container of the present invention will be described with reference to FIG.

First, a first step of finely puncturing the cover film 110 to form a linear gas discharging portion 112 is performed. At this time, in the first step, the cover film 110 is micro-punched using a laser.

For this purpose, the laser processing apparatus 200 shown in FIG. 3 is used. The laser processing apparatus 200 includes a laser oscillator 210 for oscillating a laser and an acoustooptic modulator 220 on a side of the laser oscillator 210 as shown in the figure. In this case, the acoustooptic modulator divides the laser at a time, and in the case of the present invention, a plurality of the acoustooptic modulators are arranged along the laser oscillation direction to divide the laser into a plurality of laser beams.

At this time, the acoustooptic modulators 220 may be arranged in two (221, 222) directions in the laser oscillation direction (right direction in the drawing) as shown in FIG. According to this configuration, the time-divided laser can be generated in two rows to form two rows of micro-perforations.

Of course, by arranging more acoustooptic modulators 220, it is possible to obtain more heat perforations.

Meanwhile, in order to obtain the linear gas discharge unit 112 of the present invention, the cover film 110 must be moved in a certain direction.

To this end, a transporting unit (not shown) disposed on one side of the cover film 110 may be provided.

The transfer unit can transfer the cover film 110 using a widely known winding roller.

A second step of fusing the cover film 110 to the storage part 120 after the linear gas discharge part 112 is formed in the cover film 110 by the first step as described above, Thereby producing a storage container.

At this time, the cover film 110 can be fused to the storage unit 120 by a heat fusion method. Since the technology is well known, detailed description and illustration are omitted.

Meanwhile, the laser beam split at the first stage can be directed toward the cover film 110 through each mirror M, and can maintain a stable laser beam through the damper D. Further, the laser beam irradiated on the cover film 110 can be passed through the condenser lens 230 to improve the processing efficiency. Since this configuration is well known, detailed description thereof will be omitted.

It is needless to say that the laser oscillator 210 and the acoustooptic modulator 220 can control the output or the like by the control unit CON.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the same is by way of illustration and example only and is not to be construed as limiting the present invention. It is obvious that the modification or improvement is possible.

It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

110: Cover film 120: Storage part
121: Adhesive surface 122: Adhesive surface
123: storage container 200: laser processing device
210: laser oscillator 220: acoustooptic modulator

Claims (8)

And a cover film (110) disposed on a storage part (120) in which the kimchi is stored,
The cover film 110 includes a linear gas discharging part 112 formed of a plurality of micro-perforations H formed in a linear shape and discharging gas, a pH discoloring film 112 attached to the bottom surface of the linear gas discharging part 112 131 and an exhaust hole 132,
The storage unit 120 has a plate shape so that the cover film 110 is fused and has a bonding surface 121 on which a scratch line 124 is formed as a concave shape and a part of the bonding surface 121, And a storage container (123) in which the kimchi is stored,
And a plurality of adhesive protrusions 122 formed on the adhesive surface 121 and in contact with the bottom surface of the cover film 110,
Wherein the linear gas discharging part (112) is positioned above the bonding surface (121) where the scratch line (124) is formed. delete delete delete delete delete delete delete
KR1020150174998A 2015-12-09 2015-12-09 Kimchi container and producing method for the same KR101798933B1 (en)

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KR1020150174998A KR101798933B1 (en) 2015-12-09 2015-12-09 Kimchi container and producing method for the same

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KR101798933B1 true KR101798933B1 (en) 2017-11-17

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190073235A (en) 2017-12-18 2019-06-26 한종휘 Kimchi manufacturing and storage kit
CN114072279A (en) * 2019-05-22 2022-02-18 Cj第一制糖株式会社 pH responsive indicator label and packaging material using pH responsive color changing ink composition

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220243085A1 (en) * 2019-05-22 2022-08-04 Cj Cheiljedang Corporation Ph-sensitive indicator label using ph-sensitive color-changing ink composition, and packaging material
WO2020235963A1 (en) * 2019-05-22 2020-11-26 씨제이제일제당(주) Ph-sensitive variable-color ink composition, and ph-sensitive indicator label and packaging material using same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100431536B1 (en) * 2001-02-14 2004-05-20 박상규 Food quality indicator using pH sensitive indicator
JP2010095293A (en) * 2008-10-17 2010-04-30 Toppan Printing Co Ltd Packaging material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100431536B1 (en) * 2001-02-14 2004-05-20 박상규 Food quality indicator using pH sensitive indicator
JP2010095293A (en) * 2008-10-17 2010-04-30 Toppan Printing Co Ltd Packaging material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190073235A (en) 2017-12-18 2019-06-26 한종휘 Kimchi manufacturing and storage kit
CN114072279A (en) * 2019-05-22 2022-02-18 Cj第一制糖株式会社 pH responsive indicator label and packaging material using pH responsive color changing ink composition

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