WO2016039460A1 - 熱履歴変化型インジケーター - Google Patents
熱履歴変化型インジケーター Download PDFInfo
- Publication number
- WO2016039460A1 WO2016039460A1 PCT/JP2015/075912 JP2015075912W WO2016039460A1 WO 2016039460 A1 WO2016039460 A1 WO 2016039460A1 JP 2015075912 W JP2015075912 W JP 2015075912W WO 2016039460 A1 WO2016039460 A1 WO 2016039460A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- layer
- heat
- permeation
- substance
- fusible
- Prior art date
Links
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- DMCJFWXGXUEHFD-UHFFFAOYSA-N pentatriacontan-18-one Chemical compound CCCCCCCCCCCCCCCCCC(=O)CCCCCCCCCCCCCCCCC DMCJFWXGXUEHFD-UHFFFAOYSA-N 0.000 description 2
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- PVNIQBQSYATKKL-UHFFFAOYSA-N tripalmitin Chemical compound CCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCC PVNIQBQSYATKKL-UHFFFAOYSA-N 0.000 description 2
- DCXXMTOCNZCJGO-UHFFFAOYSA-N tristearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 description 2
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- WLTCCDHHWYAMCG-UHFFFAOYSA-N 2-phenylmethoxynaphthalene Chemical compound C=1C=C2C=CC=CC2=CC=1OCC1=CC=CC=C1 WLTCCDHHWYAMCG-UHFFFAOYSA-N 0.000 description 1
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- PLZVEHJLHYMBBY-UHFFFAOYSA-N Tetradecylamine Chemical compound CCCCCCCCCCCCCCN PLZVEHJLHYMBBY-UHFFFAOYSA-N 0.000 description 1
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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
- G01K11/06—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using melting, freezing, or softening
-
- 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
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L7/00—Cereal-derived products; Malt products; Preparation or treatment thereof
- A23L7/10—Cereal-derived products
- A23L7/109—Types of pasta, e.g. macaroni or noodles
- A23L7/113—Parboiled or instant pasta
-
- 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
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/20—External fittings
- B65D25/205—Means for the attachment of labels, cards, coupons or the like
-
- 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
- B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
- B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
- B65D85/816—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package into which liquid is added and the resulting preparation is retained, e.g. cups preloaded with powder or dehydrated food
-
- 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
- G01K11/18—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 of materials which change translucency
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
Definitions
- the present invention relates to a thermal history change type indicator. More specifically, the present invention relates to a thermal history change type indicator that reflects the integration of temperature and time. The present invention also relates to a set of a heat history change indicator and an instant cup noodle including the heat history change indicator and the instant cup noodle.
- the total amount of heat (accumulated value) that the object receives over time may be important, not just temperature changes over time and temperature information at a certain moment.
- Examples of such objects include devices and foods.
- some devices may cause inconveniences such as deterioration or malfunction when heated above a certain temperature.
- some foods must not be exposed to a predetermined temperature for a certain period of time in order to maintain quality, while they must be exposed to a predetermined temperature for a certain period of time for safety and hygiene.
- the total amount of heat received over time (cumulative value) is also important in the restoration (hot water reconstitution) of instant cup noodles and the like.
- an object of the present invention is to make it possible to accurately measure the total amount (cumulative value) of heat that is hardly affected by temperature unevenness and that is received over time.
- the present inventors diligently studied a method for making it possible to accurately measure the total amount (cumulative value) of heat that is hardly affected by temperature unevenness and that is received over time. And it discovered that it was hard to be influenced by the temperature nonuniformity of a sticking site
- the present invention includes a heat-fusible material layer containing a heat-fusible material and a color on one side that becomes transparent or translucent as the heat-fusible material melts and penetrates.
- a permeation layer, and a thermofusible substance permeation inhibiting layer disposed between the thermofusible substance layer and the permeation layer and inhibiting the thermofusible substance from penetrating into the permeation layer.
- a heat history change type indicator which is laminated and the penetration layer side is covered with a protective layer.
- thermofusible substance permeation inhibiting layer is provided between the thermofusible substance layer and the permeation layer. Therefore, the heat-fusible substance is not absorbed from the colored surface and is gradually absorbed from the end of the permeation layer. Then, by gradually absorbing the thermally fusible substance from the end of the permeation layer, the permeation area can be visualized as the total amount (cumulative value) of heat received over time.
- the present invention also provides a heat-fusible material layer containing a heat-fusible material, a colored paper, a permeation layer that becomes transparent or translucent when the heat-fusible material melts and penetrates, and the heat-fusible material.
- a heat-fusible material disposed between at least one of the active material layer and the colored paper, or between the colored paper and the penetrating layer, which inhibits the heat-fusible substance from penetrating into the penetrating layer.
- a thermal history change type indicator is provided in which a material permeation inhibiting layer is laminated, and the permeation layer side is covered with a protective layer.
- the colored paper and the permeation layer can be provided separately. Thereby, it is possible to use colored paper that has been subjected to complicated printing.
- the heat fusible substance is formed from the end of the penetrating layer. Can be absorbed gradually. Then, by gradually absorbing the thermally fusible substance from the end of the permeation layer, the permeation area can be visualized as the total amount (cumulative value) of heat received over time.
- the present invention further includes a heat-fusible material layer containing a heat-fusible material, a permeation layer that becomes transparent or translucent when the heat-fusible material melts and permeates, and the heat-fusible material layer. And a colored thermofusible substance penetration inhibiting layer disposed between the penetrating layer and preventing the thermofusible substance from penetrating into the penetrating layer, wherein the penetrating layer side is a protective layer
- the thermal history change type indicator covered by is provided.
- the permeation layer becomes transparent or translucent, the color of the heat fusible substance infringement inhibiting layer becomes visible, so that the total amount of heat received over time (cumulative value) is visualized. be able to.
- the present invention provides a set of a heat history change indicator and an instant cup noodle, including the heat history change indicator and the instant cup noodle.
- FIG. 1 is a schematic view of a thermal history change indicator 1 according to the present invention.
- the heat history change indicator 1 according to the present invention is roughly divided into a base material 10, a heat-fusible substance layer 20 containing a heat-fusible substance, and transparent or translucent when the heat-fusible substance penetrates.
- a permeation layer 30 colored on one side, a heat fusible substance permeation inhibiting layer 40 for inhibiting the melted thermofusible substance from penetrating from the color side of the permeation layer 30, and the entire surface.
- a protective layer 50 for covering. Then, as shown in FIG. 1, the heat fusible substance layer 20, the heat fusible substance permeation inhibiting layer 40, and the permeation layer 30 are laminated in this order, and are laminated between the base material 10 and the protective layer 50. It has a structure.
- thermofusible substance layer 20, the osmotic layer 30, and the thermofusible substance penetration inhibiting layer 40 are preferably the same size. And it is preferable that the base material 10 and the protective layer 50 make a size larger than these. By increasing the size of the base material 10 and the protective layer 50, a margin can be made, and the heat-fusible substance layer 20, the heat-fusible substance penetration inhibiting layer 40, and the osmotic layer 30 can be sealed.
- the shape of the heat history change indicator 1 is not particularly limited, and examples thereof include a circle and a polygon. Among these, from the viewpoint of appearance, a circular shape in which the heat-fusible substance erodes concentrically from the end face is preferable. Further, from the viewpoint of productivity, it is preferable that the shape is a quadrangle with little cut loss.
- mold indicator 1 concerning this invention is not specifically limited, For example, the lamination
- the substrate 10 is selected depending on the configuration of the adherend. It is located in the lowermost layer of the thermal history change type indicator, and covers the thermofusible substance layer 20, the thermofusible substance penetration inhibiting layer 40, and the penetrating layer 30 together with the protective layer 50 described later. Is for.
- the substrate 10 is preferably an aluminum foil or a plastic substrate, and preferably has an adhesive layer on one side as long as it is in a label form. By providing an adhesive layer, it can be affixed to a container or lid for instant cup noodles.
- the base material 10 is composed of, for example, a release paper, an adhesive layer, and a support.
- the support preferably has a function not impregnated with a heat-fusible substance described later.
- a heat-fusible substance described later.
- the base material 10 does not need to provide a release paper and a pressure-sensitive adhesive layer when at least the heat history change type indicator is separately incorporated in a container with an adhesive or the like, and may be only a support.
- the base material 10 is preferably a material having good thermal conductivity.
- the material having good thermal conductivity means that the temperature loss is small and the temperature in the container can be transmitted to the heat-fusible material layer 20 almost as it is.
- the size of the base material 10 is preferably larger than the thermofusible substance layer 20, the thermofusible substance penetration inhibiting layer 40, and the penetrating layer 30 described later.
- Thermofusible material layer 20 The heat-fusible substance layer 20 is placed between the base material 10 and a permeation layer 30 described later, and contains a heat-fusible substance for making the permeation layer 30 translucent or transparent. is doing.
- the amount of the heat-fusible substance contained is not particularly limited as long as it contains an amount necessary to make the osmotic layer 30 transparent or translucent.
- an organic compound having a melting point of 50 ° C. or higher, preferably 60 ° C. or higher is preferably used.
- examples of such compounds include aliphatic compounds having a polar group such as alcohols, esters, amides, ketones, and ethers, aromatic compounds, and heterocyclic compounds.
- amide compounds such as ethylene bis stearamide, methylol stearamide, undecylamide, laurylamide, myristylamide, palmitylamide, stearylamide, docosylamide, bevenyl alcohol, stearyl alcohol, myristyl Alcoholic compounds such as alcohol and oleyl alcohol, tetradecyl stearate, octadecyl stearate, hexadecyl palmitate, benzyl behenate, stearyl salicylate, cetyl benzoate, dimyristyl sebacate, dicetyl azelate, distearyl adipate, distearyl sebacate , Ester compounds such as tristearin, tripalmitin and trimyristin, and ketone compounds such as stearone, laurone and dioctyl ketone , 1,2-diphenoxyethane, and ether compounds such as ⁇ - naphthol
- saturated hydrocarbons or unsaturated hydrocarbons when used in foods, it is preferable to use saturated hydrocarbons or unsaturated hydrocarbons from the viewpoints of safety, transparency, temperature display, and the like. Saturated hydrocarbons and unsaturated hydrocarbons can be properly used depending on the temperature range and characteristics.
- saturated hydrocarbons examples include paraffin wax, microcrystalline wax, sazol wax, and liquid paraffin.
- paraffin wax which can be represented by the chemical substance CnH 2n + 2 is particularly preferable as a main component, and n number is particularly preferably 24 to 60. The smaller the n number, the lower the melting point. Conversely, the larger the n number, the higher the melting point.
- unsaturated hydrocarbons examples include polyethylene wax, olefin, and polyolefin wax.
- the molecular structure of the heat fusible substance is preferably a linear paraffin wax.
- the more linear the molecular structure the easier the isolation during heavy oil refining and the narrower the temperature range of the melting point, so the better the temperature display.
- the surface tension is low, the impregnation speed into the osmotic layer 30 is increased.
- the heat-fusible substance can be a substance other than the above.
- a fluid selected from the group consisting of a viscous fluid, a viscoelastic fluid, and a mixture thereof can be used.
- the present invention is not limited to this.
- the surface tension of the heat-fusible substance is not particularly limited.
- the surface tension of the heat-fusible substance at 80 ° C. is in the range of 1.0 ⁇ 10 ⁇ 2 to 1.0 ⁇ 10 2 mN / m.
- the range of 1.0 ⁇ 10 ⁇ 1 to 5.0 ⁇ 10 mN / m is more preferable, and the range of 5.0 to 3.0 ⁇ 10 mN / m is even more preferable.
- the viscosity of the heat-fusible substance is not particularly limited.
- the viscosity of the heat-fusible substance at 80 ° C. is in the range of 1.0 ⁇ 10 ⁇ 2 to 1.0 ⁇ 10 2 mPa ⁇ s.
- the range of 1.0 ⁇ 10 ⁇ 1 to 6.0 ⁇ 10 mPa ⁇ s is more preferable, and the range of 1.0 to 4.0 ⁇ 10 mPa ⁇ s is even more preferable.
- the refractive index of the heat-fusible substance is not particularly limited.
- the refractive index of the heat-fusible substance at 23 ° C. is preferably in the range of 0.8 to 2.0, and preferably 1.0 to 1.8. A range is more preferred, and a range of 1.4 to 1.6 is even more preferred.
- a refractive index comparable to that of a permeation layer described later (for example, the refractive index of cellulose constituting paper fibers is 1.49) is preferable because transparency increases after permeation.
- thermofusible substance For the permeation control, only one kind of thermofusible substance may be used, or a plurality of thermofusible substances having different melting points and viscosities may be combined.
- auxiliary agents that improve coatability and brittleness after processing, and if necessary, colorants such as pigments and dyes, and fragrances can be mixed.
- the heat-fusible substance layer 20 according to the present invention can also be produced by directly applying a melted heat-fusible substance to a substrate using a device such as a dispenser. Moreover, it can use as a continuous sheet
- the manufactured heat-fusible material layer 20 may be in the form of a roll or may be previously cut into a predetermined size.
- the shape of the heat-fusible substance layer 20 is the same shape as the osmosis
- the permeation layer 30 is transparent or translucent when the molten thermofusible material permeates.
- a sheet-like material in which a material having a refractive index equivalent to that of a heat-fusible material is made porous or fiberized is preferable.
- paper, alumina fiber, glass fiber, rayon fiber, polyvinyl alcohol, cellulose fiber, polyolefin fiber (including polypropylene, polyethylene, nylon, polyester), etc., nonwoven fabrics made of composite fibers, foamed plastic sheets, and urethane foam are used. good.
- the transparent / semi-transparent mechanism of the osmotic layer 30 of the present invention will be described using paper as an example.
- the refractive index of cellulose constituting the fiber of the paper is 1.49, whereas the refractive index of air is 1. Very different from 0.00. Since paper contains about 50% air in its volume, there are many fine voids in the paper layer. For this reason, the light is complicatedly refracted at an infinite number of interfaces between the two so that the paper appears white and opaque. When a heat-fusible substance close to the refractive index of cellulose permeates there, the voids are filled and a uniform refractive index is obtained. As a result, since complicated interfacial refraction is eliminated, it becomes transparent or translucent.
- the refractive index of the osmotic layer 30 according to the present invention depends on the refractive index of the thermofusible substance.
- the refractive index of the osmotic layer 30 at 23 ° C. is preferably in the range of refractive index ⁇ 0.3 of the thermofusible substance, and in the range of refractive index ⁇ 0.2 of the thermofusible substance. Is more preferable, and it is even more preferable that the refractive index of the heat-fusible substance is in the range of ⁇ 0.1.
- the permeation layer 30 according to the present invention can be adjusted by appropriately changing the density, porosity, and area shape so that the heat fusible substance can permeate in a desired time. This is because the impregnation rate of the heat-fusible substance is affected by the density, porosity, and area shape. Moreover, it is preferable that it is the thickness and basic weight of a grade which a thermofusible substance is easy to contain.
- the osmotic layer according to the present invention it is preferable to use single-sided art paper that is colored on one side from the viewpoint of productivity and cost.
- the coloring applied to the single-sided art paper is not particularly limited, but it is preferable that the color change is easily visible when used as an indicator.
- the colored surface downward (the heat-fusible substance layer 20 side).
- a surface that is not colored can mask the coloring.
- the heat fusible substance penetrates, the color can be visually recognized by changing from white to transparent or translucent, and the change in color contrast can be remarkably easily recognized.
- the osmotic layer 30 has the same size as the heat-fusible substance layer 20 and is smaller than the base material 10 and a protective layer 50 described later. This is because if the osmotic layer 30 is too large, a sealed space cannot be formed by the base material 10 and the protective layer 50.
- the shape of the permeation layer 30 is not particularly limited, but is preferably circular. By making it circular, the color changes toward the center of the circle, making it easy to recognize. Further, from the viewpoint of productivity, it is preferable that the shape is a quadrangle with little cut loss.
- Thermofusible substance permeation inhibition layer 40 is a layer provided between the heat-fusible substance layer 20 and the osmotic layer 30, and the melted thermo-fusible substance permeates from the coloring surface side of the osmotic layer 30. It is to prevent it from doing.
- the heat fusible substance permeation inhibiting layer 40 preferably covers all the colored surfaces of the permeation layer 30. Accordingly, it is possible to guide the melted thermofusible substance to gradually infiltrate from the end face of the permeation layer 30.
- the heat fusible substance permeation inhibiting layer 40 is not particularly limited as long as the heat fusible substance does not penetrate or has oil repellency.
- an oil repellent member such as a paper coated with an oil repellent substance such as an overprint varnish or a plastic film such as a PET film can be cited.
- an oil repellent material When an oil repellent material is used, it can be formed integrally with the permeation layer 30.
- a plastic film such as a colored PET film may be used as the heat fusible substance permeation inhibiting layer.
- the permeation layer becomes transparent or translucent, the color of the colored plastic film can be visually recognized, so that it can be used as an indicator without coloring the permeation layer.
- inhibition layer 40 when using the paper in which the coating layer is provided on the coloring surface as the osmosis
- the protective layer 50 is located in the uppermost layer of the thermal history change type indicator 1, and together with the base material 10, the thermofusible substance layer 20, the osmotic layer 30, and the thermofusible substance penetration inhibition layer 40 For covering and sealing. This prevents the heat fusible substance layer 20, the permeation layer 30, and the heat fusible substance permeation inhibition layer 40 from being displaced. In addition, the penetration layer 30 is prevented from becoming translucent or transparent due to intrusion from outside such as moisture or water. Further, the molten thermofusible substance can reach the end face of the permeation layer 30 through the protective layer 50 without leaching out of the indicator.
- the material of the protective layer 50 is not particularly limited as long as it is transparent, and a material that is difficult to agglomerate and peel from the support of the substrate 10 is preferable.
- Examples of the protective layer 50 include polyester, polypropylene, or polyethylene film.
- an adhesive layer may be provided on one side of the protective layer 50. By providing the pressure-sensitive adhesive layer, the base material 10 and the sealed space can be formed.
- thermofusible substance layer 20 it is preferable that there is a slight gap between the protective layer 50, the heat-fusible substance layer 20 and the permeation layer 30. Due to this gap, the melted thermofusible substance can permeate from the end face of the permeation layer 30. Note that a gap may be provided between the osmotic layer 30 and the protective layer 50 by making the osmotic layer 30 slightly smaller than the heat-fusible substance layer 20.
- the present invention also relates to a set of a heat history change indicator and an instant cup noodle, including the heat history change indicator 1 and the instant cup noodle according to the present invention.
- the heat history change indicator 1 may be affixed to the instant cup noodles in advance, or may be affixed by the user during use. Examples of the position where the heat history change indicator 1 is attached include a lid for instant cup noodles or a container outer wall. Of these, it is preferable to affix to the lid.
- the heat history change indicator 1 changes color in conjunction with the temperature in the container, and the instant cup noodles have returned to their restored state. It can be easily visually recognized.
- the components of the heat history change type indicator 1 can be appropriately selected based on the amount of heat necessary for returning the instant cup noodles to the noodle bath and the material and shape of the lid or container of the instant cup noodles.
- thermal history change indicator 1 Next, the mechanism of action of the thermal history change indicator 1 according to the present invention will be described.
- the case where the heat history change indicator 1 is attached to the lid of the instant cup noodle will be described as an example.
- the heat history change type indicator 1 is composed of a circular heat-fusible substance layer 20 impregnated with paraffin wax having a melting point of 76 ° C. on a base material 10 made of a double-sided adhesive layer PET film, single-sided art paper. It has a structure in which a circular penetrating layer 30 that is oil-repellent-treated with varnish and a protective layer 50 made of a single-sided adhesive polyester film are laminated on the printed surface side of (basis weight: 79 g / m 2 ).
- the varnish serves as the heat fusible substance inhibiting layer 40.
- the melting point of the heat-fusible substance used for instant cup noodles or the like is preferably in the range of 45 ° C. to 90 ° C., and more preferably in the range of 70 ° C. to 85 ° C. This is because even if hot water of 100 ° C. is poured into the instant cup noodles, the temperature of the lid of the instant cup noodles does not become 100 ° C. due to a temperature gradient with the outside air temperature or the like. Moreover, the temperature of the lid is higher toward the center of the lid, and the temperature decreases toward the periphery (particularly near the opening). Therefore, depending on the position of the lid, a temperature difference of about 10 ° C. at maximum occurs. Therefore, if the melting point temperature of the heat fusible substance is too high, the discoloration reaction does not proceed. Conversely, if the melting point of the heat fusible substance is low, the discoloration reaction may proceed during storage conditions or product transfer. It is.
- the thermal history change indicator 1 is attached to the lid of the instant cup noodle. Subsequently, the lid of the instant cup noodle is opened to half, hot water is poured into the container, and the lid is closed again. Note that the heat history change indicator 1 may be attached to the outer wall of the instant cup noodle container instead of the lid.
- thermofusible material penetrates from the end face of the permeation layer 30. And when the osmosis
- the center temperature of the lid reaches about 85 ° C., so that the heat-fusible substance melts. Since the temperature of the lid is high, the thermofusible substance has a low viscosity and penetrates the penetration layer 30 quickly. Since the temperature of the lid gradually decreases with the passage of time, the viscosity of the heat-fusible substance gradually increases and the permeation into the permeation layer 30 is delayed.
- the restoration state can be confirmed in conjunction with the temperature in the container, it can be restored to the restoration state intended by the manufacturer even when there is no watch or when the temperature of hot water is low. Moreover, since the reaction can proceed in the vertical direction even at a location where there is a temperature difference depending on the application site, it is difficult to be affected by temperature unevenness.
- the present invention is not limited to the above embodiments.
- a description has been given of a case where one side of the osmotic layer 30 is colored, but a structure in which an osmotic layer is laminated on colored paper (colored paper) may be used.
- the entire colored paper is covered with the heat fusible substance permeation inhibiting layer so that the colored paper is not impregnated with the heat fusible substance.
- you may provide a coating layer in colored paper. In such a case, the coating layer serves as a heat fusible substance permeation inhibiting layer.
- a heat fusible substance permeation inhibiting layer may be provided between at least one of the heat fusible substance layer and the colored paper or between the colored paper and the penetrating layer. Even in such a case, the effects of the present invention are exhibited.
- the thermal history change type indicator may be provided directly on the container or lid of the instant cup noodle without using the base material.
- a heat-fusible substance layer, a heat-fusible substance permeation inhibiting layer, and a permeation layer may be laminated on the instant cup noodle container or lid and covered and sealed with a protective layer.
- the present invention is not limited to this, and the solid heat fusible substance is not impregnated in the paper. You may use as it is.
- a member for further assisting the visual recognition effect may be provided on the permeation layer.
- the thermal history change indicator is circular, the reaction ends at the center. Therefore, by providing a donut-shaped paper made of a material that does not become transparent or translucent with a heat-fusible substance on the permeation layer, the end of the reaction can be more easily recognized.
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Abstract
Description
図1は本発明にかかる熱履歴変化型インジケーター1の概略図である。本発明にかかる熱履歴変化型インジケーター1は、大別すると基材10と、熱可融性物質を含む熱可融性物質層20と、熱可融性物質が浸透すると透明または半透明となる片面に彩色が施された浸透層30と、融解した熱可融性物質が浸透層30の彩色面側から浸透するのを阻害するための熱可融性物質浸透阻害層40と、表面全体を覆う保護層50と、から構成される。そして、図1のように、熱可融性物質層20と、熱可融性物質浸透阻害層40と、浸透層30とはこの順に積層され、基材10と保護層50で挟み込まれた積層構造となっている。
基材10は、被着体の構成により選択される。熱履歴変化型インジケーターの最下層に位置するものであって、後述する保護層50と共に、熱可融性物質層20と、熱可融性物質浸透阻害層40と、浸透層30とを被覆するためのものである。基材10は、アルミ箔またはプラスチック基材が好ましく、ラベル形態であれば片面に粘着層を兼ね備えていることが好ましい。粘着層を設けることで、即席カップ麺の容器や蓋に貼付できる。
熱可融性物質層20は、基材10と後述する浸透層30との間に載置されるものであって、浸透層30を半透明または透明にするための熱可融性物質を含有している。含有している熱可融性物質量は、浸透層30を透明または半透明にするのに必要な量を含有していればよく、特に制限されない。
本発明に係る浸透層30は、融解した熱可融性物質が浸透することによって透明または半透明化するものである。
熱可融性物質浸透阻害層40は、熱可融性物質層20と浸透層30との間に設けられる層であって、融解した熱可融性物質が浸透層30の彩色面側から浸透するのを防ぐためのものである。熱可融性物質浸透阻害層40は、浸透層30の彩色を施した面全てを被覆していることが好ましい。これにより、融解した熱可融性物質が浸透層30の端面から徐々に浸み込むよう誘導できる。
本発明に係る保護層50は、熱履歴変化型インジケーター1の最上層に位置し、基材10と共に熱可融性物質層20と、浸透層30と、熱可融性物質浸透阻害層40と、を被覆し密閉するためのものである。これにより、熱可融性物質層20と、浸透層30と、熱可融性物質浸透阻害層40と、が位置ズレすることを防ぐ。また、湿気や水など外部からの侵入によって浸透層30が半透明または透明になってしまうことを防ぐ。さらに、融解した熱可融性物質がインジケーターの外へ浸み出さずに、保護層50を伝って、浸透層30の端面に到達することができる。
例えば、上記実施例では浸透層30の片面に彩色を施したものについて説明したが、有色の紙(色紙)の上に浸透層を積層した構造としてもよい。この時、色紙に熱可融性物質が含浸しないように、色紙全体を熱可融性物質浸透阻害層によって被覆していることが好ましい。また、色紙にコーティング層を設けてもよい。かかる場合、コーティング層が熱可融性物質浸透阻害層の役割を果たす。さらに、色紙を用いる場合には、熱可融性物質層と色紙の間、または、色紙と浸透層との間の少なくともいずれかに熱可融性物質浸透阻害層を設ければよい。このような場合においても本発明の効果を奏する。
10 基材
20 熱可融性物質層
30 浸透層
40 熱可融性物質浸透阻害層
50 保護層
Claims (4)
- 熱可融性物質を含む熱可融性物質層と、
前記熱可融性物質が融解浸透することにより透明または半透明になる片面に彩色が施された浸透層と、
前記熱可融性物質層と前記浸透層との間に配置され、前記熱可融性物質が前記浸透層に浸透するのを阻害する熱可融性物質浸透阻害層と、が積層され、
前記浸透層側が保護層によって覆われる熱履歴変化型インジケーター。 - 熱可融性物質を含む熱可融性物質層と、
色紙と、
前記熱可融性物質が融解浸透することにより透明または半透明になる浸透層と、
前記熱可融性物質層と前記色紙との間、又は、前記色紙と前記浸透層との間の少なくともいずれかに配置され、前記熱可融性物質が前記浸透層に浸透するのを阻害する熱可融性物質浸透阻害層と、が積層され、
前記浸透層側が保護層によって覆われる熱履歴変化型インジケーター。 - 熱可融性物質を含む熱可融性物質層と、
前記熱可融性物質が融解浸透することにより透明または半透明になる浸透層と、
前記熱可融性物質層と前記浸透層との間に配置され、前記熱可融性物質が前記浸透層に浸透するのを阻害する有色の熱可融性物質浸透阻害層と、が積層され、
前記浸透層側が保護層によって覆われる熱履歴変化型インジケーター。 - 請求項1~3のいずれかに記載の熱履歴変化型インジケーター及び即席カップ麺を含む、熱履歴変化型インジケーターと即席カップ麺とのセット。
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BR112017004659-8A BR112017004659B1 (pt) | 2014-09-12 | 2015-09-11 | Indicador do tipo de histórico de alteração térmica |
SG11201701736TA SG11201701736TA (en) | 2014-09-12 | 2015-09-11 | Thermal-history-change-type indicator |
MX2017003242A MX2017003242A (es) | 2014-09-12 | 2015-09-11 | Indicador de tipo de cambio de historial termico. |
US15/509,767 US10545056B2 (en) | 2014-09-12 | 2015-09-11 | Thermal history change type indicator |
CN201580048511.3A CN106687786B (zh) | 2014-09-12 | 2015-09-11 | 热历程变化型指示装置 |
RU2017107813A RU2660371C1 (ru) | 2014-09-12 | 2015-09-11 | Индикатор изменения температуры во времени |
KR1020177006561A KR20170056534A (ko) | 2014-09-12 | 2015-09-11 | 열이력 변화형 인디케이터 |
EP15839338.9A EP3193147B1 (en) | 2014-09-12 | 2015-09-11 | Thermal-history-change-type indicator |
PH12017500344A PH12017500344A1 (en) | 2014-09-12 | 2017-02-24 | Thermal history change type indicator |
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2014
- 2014-09-12 JP JP2014186699A patent/JP5889985B1/ja active Active
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2015
- 2015-09-11 TW TW104130261A patent/TWI645024B/zh active
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Also Published As
Publication number | Publication date |
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BR112017004659B1 (pt) | 2022-05-10 |
SG11201701736TA (en) | 2017-04-27 |
KR20170056534A (ko) | 2017-05-23 |
JP2016061563A (ja) | 2016-04-25 |
MX2017003242A (es) | 2017-12-20 |
EP3193147B1 (en) | 2021-02-03 |
RU2660371C1 (ru) | 2018-07-05 |
CN106687786A (zh) | 2017-05-17 |
TWI645024B (zh) | 2018-12-21 |
US10545056B2 (en) | 2020-01-28 |
MY177700A (en) | 2020-09-23 |
JP5889985B1 (ja) | 2016-03-22 |
HUE053523T2 (hu) | 2021-07-28 |
PH12017500344B1 (en) | 2017-07-17 |
EP3193147A4 (en) | 2018-06-27 |
EP3193147A1 (en) | 2017-07-19 |
BR112017004659A2 (pt) | 2017-12-05 |
PH12017500344A1 (en) | 2017-07-17 |
TW201625769A (zh) | 2016-07-16 |
US20170261384A1 (en) | 2017-09-14 |
CN106687786B (zh) | 2019-10-29 |
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