KR101813093B1 - Measurement labels for product freshness - Google Patents

Abstract

The present invention relates to a label paper to measure freshness of products. Currently, to determine freshness of foods and medicine (hereafter, refers to products), expiration dates are recorded on an appearance of low-price products, and an indicator to indicate temperatures in accordance with time is used in high-price products. However, the expiration dates and the temperature-indicator have is limited for consumers to directly check the freshness. As such, the present invention relates to a label paper to measure freshness of the products capable of making consumers see products and check whether products are spoiled or not when products are exposed to a proper temperature when a proper accommodating temperature is raised in a distribution process of products, specifically products distributed in a refrigerating and freezing state. The label paper to measure freshness of products comprises: a capsule which accommodates a mixture in a liquid state; a mixture storage layer; a partition structure layer made by materials where the mixture is able to be passed through, and a product quality display layer installed below the partition structure layer, and changed when the mixture is contacted.

Description

{MEASUREMENT LABELS FOR PRODUCT FRESHNESS}

The present invention relates to a measurement label for confirming the freshness of a food and a medicament when the temperature rises above a proper storage temperature for a certain period of time. In particular, The present invention relates to a measurement label sheet for measuring whether a change occurring due to exposure to an appropriate temperature at the time of rise is clearly and easily judged by a consumer.

As the interest in food is increasing worldwide, the food market is growing and the desire of consumers to eat fresh foods is also growing. Considering this point, as the size of the fresh food market and the trade of drugs including food distribution are growing, there is a greater risk that the freshness of the distribution and storage of medicines and foods may be damaged. Therefore, consumers do not rely on the most basic shelf life date for judging the freshness of a product, but in particular, they can easily judge freshness by visual inspection at a low cost from a product requiring refrigeration and freezing A method is required.

Currently, Korea uses a method to record the expiration date on the product label as a method for determining the freshness of the product. Another method is to use a time temperature indicator (TTI) indicating the temperature over time, An enzyme type, a microorganism type, and a photochemical type are used. Among them, the method of measuring the freshness of the most frequently used products generally uses a method in which the date of expiration date is described in the package of the product as described above by taking advantage of the fact that the freshness is lowered with time in general. The government also urges or aggressively encourages products to display manufacturing dates and expiration dates.

As another method, there is a diffusion type method which judges the passage of time from the degree of diffusion of a liquid substance such as ink and a method of monitoring the degree of deterioration of the product from the change of the color of the indicator liquid by using the enzyme attached to the product packaging paper In general, low-cost products generally use a method of describing the expiration date on a product packaging sheet. However, for expensive products, a diffusion-type method in which a liquid ink containing a chemical component diffuses , Or an enzyme-based method that utilizes the extent to which the color of the indicator is altered by the enzyme.

On the other hand, the Korean government has implemented a hygiene management system that manages systematically from the manufacturing stage through a system called 'lash', which is a hygiene management system to identify and identify the risk factors and secure the stability of food. However, in the manufacturing stage, there is a system called "lash" that can be trusted by consumers under the government's control. However, in the distribution process other than manufacturing, a cold chain (cold chain, The method of delivering the product from the main producing place to the home without dropping the freshness) is cut off, thereby affecting the bacterial propagation and the deterioration of the taste of the product. Therefore, a mediator is required to enable the consumer to know the history of the distribution process of the product .

Accordingly, the present invention relates to a method and apparatus for labeling a product in a sticky form on a wrapping paper of a product containing refrigerated or frozen foods or medicines, to prevent the product from being exposed to an inappropriate temperature at which the freshness of the product is likely to be deteriorated during distribution and storage And to develop a low-cost measurement label that serves as an indicator for consumers to visually confirm whether or not they are present.

As a technology similar to the present invention, there is Korean Patent No. 1490136 (Functional Label for Sensing External Temperature Sensing for Determining Freshness of a Storage Material), which is similar to the present invention in that a label is adhered to the outside of a storage container of food It detects temperature change at specific temperature, receives temperature change, dissolves organic acid coating to change label color, and observes changed color to judge whether freshness of food is different from the measurement label sheet of the present invention.

Korean Patent No. 1341610 (Indicator for Refrigerated Foods and Pharmaceuticals) discloses an indicator for knowing whether a food or a medicine requiring refrigeration is exposed to room temperature during a distribution process and a time, and includes a base sheet, A first space filled with a protein which is liquefied in solid form as the temperature rises; a second space filled with a coloring agent which is hermetically sealed on the outer surface of the bay sheet and discolored upon reaction with an acid or a base; And the induction tube connecting the space and the second space. Therefore, Korean Patent No. 1341610 discloses that a substance which liquefies in a solid state as the stored temperature rises is used, The present invention uses a discoloring agent, but when the liquid is out of a certain temperature and is not a reaction, It differs in that it displays the letters and patterns on the floor of the quality indicator.

As described above, the method of displaying the expiration date on the existing product is advantageous in that the unit price is low and the consumer can easily judge only the package, but the products to be used are not only time- There is a problem in that it can not sufficiently reflect this point because it is often deteriorated due to the exposed environmental temperature.

In particular, the freshness of refrigerated or frozen food products is more important than the date of manufacture or shelf life of food products in order to preserve the freshness of the product during the distribution process. If the proper temperature is not maintained during the distribution process, Or by increased microbial activity, food is damaged due to taste, flavor, and texture. For example, if a frozen food is refrigerated for a long time and then frozen at the store, the consumer may purchase frozen food that has been altered without knowing the distribution process at such a suitable temperature.

Also, even if the harmful component is not generated due to chemical change because the food is within the expiration period in a state where the distribution period is not over, even if the food is thawed and iced repeatedly, voids are formed in the food itself and dehydration phenomenon occurs, It is self-evident that deteriorating and depreciating value can not provide satisfactory food to consumers for this reason. To date, the presence or absence of degeneration of food depends on only the expiration date indicated on the packing paper, and the consumers depend on the sensory test such as the taste or smell of the food. There is no alternative but a method of selecting and checking the wrapping paper directly.

Accordingly, an object of the present invention is to provide a measurement label sheet on a package of a product so that a consumer can recognize a temperature change during circulation in an environment in which the product is exposed, so that the consumer can directly determine whether the product is altered.

In order to solve the above-mentioned problems, the present invention provides a product freshness measuring label sheet comprising: a capsule containing a liquid-state mixture; a mixture storage layer constituting the capsule; And a quality indicator layer disposed below the diaphragm structure layer and absorbing a liquid mixture passing through the diaphragm structure layer and changing when the mixture is contacted with the measurement label sheet. When the measurement label sheet is attached to the product, When the temperature becomes lower than the freezing point of the liquid mixture in the capsule, the capsule becomes broken due to volume expansion while being converted into a solid mixture, and the level operation is started. When the product is released from the proper temperature, On the rise, the solid-state mixture turns into a liquid-state mixture, It characterized in that the reaction mixture is printed on a quality indicator layer letters or patterns and.

Further, the reaction of the quality display layer is characterized in that the solid state mixture turns into a liquid mixture by the temperature rise, and the characters and patterns printed on the quality display layer are blurred or disappear.

The diaphragm structural layer may be formed of a material through which a liquid mixture passes.

In addition, the mixture storage layer, the diaphragm structure layer, and the quality display layer are made of a transparent or semitransparent material so that they can be visually confirmed by a consumer.

The measurement label sheet of the present invention has an effect that a consumer can visually confirm whether or not the product is deteriorated due to exposure to an appropriate temperature when the storage temperature is deviated from the proper storage temperature during the distribution process of the product.

1 is a view for explaining a conventional distribution process.
2 is a view for explaining the principle of the measurement label sheet of the present invention.
Fig. 3 is a view for explaining the structure of the measurement label sheet of the present invention. Fig.
4 is a view for explaining the operation principle of the measurement label sheet of the present invention.

The present invention will now be described in detail with reference to the drawings.

FIG. 1 is a view for explaining a conventional distribution process. As shown in FIG. 1, it is common that a manufacturer 10, a transportation 11, a distributor 12, and a consumer 13 are generally passed from a manufacturer to a consumer. In this process, a cold chain must be made in the process of circulating cold or frozen products, but there are problems such as a claim and a cold chain. Until now, most products depend only on shelf life, and there is no other way but to directly check the freshness of packaged products directly from the outside depending on the sensory test of the condition, taste and smell of the product if the consumer doubts.

On the other hand, from the viewpoint of recommending the expiration date to the most used products, it is easy for consumers to know the products whose shelf life has passed the expiration date. In addition, Claims for the deterioration of the product are difficult to solve. This is because consumers have already eaten or wrapped their products, and it is very difficult for consumers to claim that they will deteriorate against a company or a distribution company in this situation. Therefore, it is best to solve before eating or packing.

FIG. 2 is a view for explaining the principle of measurement labeling according to the present invention. As shown in FIG. 2, the quality indicator layer responds rapidly to changes in the state of a mixture as shown in FIG. 2. Based on the algorithm establishment, the solidification point of refrigeration and freezing, The present invention can be implemented at a low cost without requiring a separate power source or device by using the prior art research on the existing technology and the natural phenomenon which is solidified or melted. That is, as shown in (a) of FIG. 1, the measurement label of the present invention can be used as a label of quality assurance which is gradually printed on the measurement label when the stored mixture is released from the proper temperature for about 10 minutes (C), it is hard to recover the original shape. In this way, the consumers can directly check the freshness of the product by confirming the state of the letter or the pattern is blurred. In the present invention, characters are printed on the quality display layer, but it is also possible to print in other forms such as patterns.

3 is a view for explaining the structure of the measurement label sheet according to the present invention and shows that it is composed of a mixture storage layer 20, a diaphragm structure layer 21 and a quality display layer 22 from the top, And is a drawing showing the developed form. The measurement label paper of the present invention is a rigid transparent capsule made of a convex vinyl film, which contains a mixture which causes different state changes (solid state, liquid state) due to changes in the internal temperature, And a quality indicator layer (22) that is discharged from the mixture and is displayed outside. The mixture in the capsule flows into the quality indicator layer (22) In order to allow the consumer to visually check the two states of goodness and badness by looking at the printed pattern of the letters or patterns.

4 is a view for explaining the principle of operation of the measurement label sheet according to the present invention. As shown above, the measurement label sheet comprises a mixture storage layer 20, a diaphragm structure layer 21, a quality indicator layer 22, The most important advantage is that it can be prepared at room temperature and can be stored at room temperature and that the structure thereof is simple. The mixture storage layer 20 is in the form of a capsule, and the mixture is contained in the capsule. The target substance (mixture) to be injected into the capsules is a substance which maintains a solid state at a temperature suitable for storing the food or medicine and causes a state change to a liquid state when the temperature exceeds the temperature. It is manufactured at room temperature and adheres to the product in a liquid state. When the product is frozen due to the temperature of the product to be attached, the mixture inside the capsule changes from a liquid state to a solid state and the volume expands. (B) Starts to work. At this stage, the characters of the quality indicator layer located at the bottom are still marked as 'Fresh' as shown in the figure. If the solid state mixture melts in a liquid state after a predetermined time has elapsed beyond the proper temperature due to an error in distribution, the liquid state mixture passes through the diaphragm structure layer 21 under the mixture storage layer 20, (C), a character marked as 'Fresh' is spread on the quality display layer 22, and the consumer confirms it with the naked eye and recognizes that there is an abnormality in the freshness of the product It is. Herein, the mixture may be a mixture of various materials capable of changing the freezing point and the melting point depending on the blending ratio and the material.

The structures of the above-mentioned mixture storage layer 20, the diaphragm structure layer 21 and the quality display layer 22 are all transparent or semitransparent in structure, So that the pattern or character of the layer 22 can be visually confirmed.

As a result, when the mixture in the capsule is adhered to the product in the initial liquid state, the capsule is broken due to the expansion of the volume by the product temperature, and the mixture is converted into a solid state by the freezing point, If the temperature of the environment in which the product is exposed during the flow increases for a certain time and rises above the melting point of the mixture, The mixture is melted and changed into a liquid state, and the changed liquid state mixture passes through the diaphragm structural layer 21 and the pattern or letter printed on the quality indicator layer 22 is smeared or not visible. As a result, The history that the temperature has risen to an appropriate temperature or more can be known. Therefore, the consumer may not judge that the freshness of the product has been hindered by the naked eye, and may not purchase the product itself.

For example, from the product manufacturing stage, a liquid mixture is placed inside a certain capsule, and the mixture storage layer 20, the diaphragm structure layer 21, and the quality indicator layer 22 are formed from the top, A temperature measurement label is attached to the product before the product is manufactured in the manufacturer, the mixture inside the capsule which was in a liquid state due to the temperature of the product is frozen in a solid state and expanded in volume, and due to the volume expansion, Freshness label operation will start. When the label operation is started and the product is out of the proper temperature for a certain period of time or more, for example, for 10 minutes or more as shown in Fig. 2, the solid-state mixture is melted and changed into a liquid state The liquid mixture automatically flows through the diaphragm structure layer 21 and flows into the quality indicator layer 22 which is a lower layer of the diaphragm structure layer 21. [

It can be seen that the liquid mixture flowing through the above process reacts with the quality indicator layer and is smudged or blurred by the liquid mixture flowing in the letters " Fresh " printed on the quality indicator layer. The consumer can confirm that the characters of the quality display layer are blurred and that the distribution of the product is a product whose temperature is out of the proper temperature for a certain period of time.

Therefore, the present invention is advantageous in that the freshness of a product can be easily grasped only by a measurement label manufactured with a simple and inexpensive unit price.

The present invention can be used in the manufacture of measurement labels for judging the freshness of foods or medical products.

Claims (4)

As product freshness measurement label paper,
A capsule containing a liquid mixture,
A mixture storage layer constituting the capsule,
And a tip portion which is positioned below the mixture storage portion and has a tip portion which is made of a material through which the liquid mixture passes, and a tip portion provided below the diaphragm structure portion, And a quality indicator layer which absorbs the mixture and changes when the mixture is contacted,
When the measurement label paper is attached to the product, when the temperature of the product becomes below the freezing point of the mixture, the capsule becomes broken due to volume expansion and starts to operate at a level. When the product is released from the proper temperature, , The solid mixture becomes a liquid mixture, and the changed liquid mixture reacts with letters or patterns printed on the quality indicator layer. The method according to claim 1,
Wherein the reaction of the quality indicator layer is a reaction in which the solid state mixture turns into a liquid mixture due to a rise in temperature and the characters and patterns printed on the quality indicator layer are smearing or disappearing. delete The method according to claim 1,
Wherein the mixture storage layer, the diaphragm structure layer, and the quality indicator layer are made of transparent or translucent material so that they can be visually confirmed by a consumer.

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