JP2022157922A - Delivery method of freezing/refrigerating home delivery article - Google Patents

Abstract

To provide a home delivery cool box enabling short distance logistics such as home delivery without any freezing/chilled-refrigerating facility or the like, and to provide a home delivery service method using the same.SOLUTION: When ice and salt of a preservative 1 has a concentration of 2.0% to 23.3%, and the preservative 1 has a temperature of -15°C or less and outside air has a temperature of 30°C, a temperature zone thereof is maintained for 1 to 11 hours; and when outside air temperature is 20°C, the temperature zone is maintained for 9 to 19 hours. On the other hand, when the preservative 1 is within a temperature zone of -15°C or more and +5°C or less, and the outside air temperature is 30°C, the temperature zone is maintained for 10 to 26 hours; and when the outside air temperature is 20°C, the temperature zone is maintained for 10 to 40 hours. A delivery method of a home delivery article according to the present embodiment comprises the steps of: storing the preservative 1 in which the ice and the salt are contained at a predetermined ratio, in a container 6; putting a content 4 therein; and further storing the content in a box. According to the present embodiment, a vinyl bag or an aluminum pouch container is used as the container 6. Further, the box 7 is preferably a corrugated box or a styrene foam box.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a frozen/refrigerated parcel delivery method that enables delivery of fresh food delivered by a parcel delivery company over a short distance without the need for freezing/refrigerating equipment.

Conventionally, there are several methods of delivery of frozen foods, etc., including large-lot deliveries from factories to wholesalers (distribution centers), small-lot deliveries from wholesalers to supermarkets, convenience stores, etc., and individual deliveries from home delivery companies to purchasers. exist.

For small-lot deliveries and personal deliveries of frozen products, conventionally, simple heat insulating materials such as expanded polystyrene and rigid urethane foam are used as cold storage containers, and lids are sealed using zippers, hook-and-loop fasteners, etc. is widely used. Further, in order to enhance the cold insulation effect and the heat insulation effect of the cold insulation container, there is a cold insulation container in which a heat insulating panel is provided in advance.

Vehicles such as freezer trucks, refrigerated trucks (chilled trucks), refrigerated trucks, and room-temperature trucks have been conventionally used for small-lot deliveries and personal deliveries of frozen products and the like. Among delivery vehicles, there are freezer/refrigerator vehicles equipped with both a freezer and a refrigerator in one vehicle. Some products can be delivered for all refrigerated foods and room temperature foods. However, such a complex delivery vehicle is not common, and when mainly delivering frozen food, the frozen food is stored in a cold storage container with a cold storage agent inserted, and this cold storage container is frozen. It is customary to deliver by car.

In view of the actual situation of such delivery methods, from the viewpoint of cost saving, it has been customary to store frozen products that require cold storage inside a cold storage container constructed using a vacuum insulation material, and store the cold storage container in a vehicle other than a refrigerator vehicle. It is carried out by loading it into a refrigerated vehicle, a refrigerated vehicle, or a room temperature vehicle for delivery.

JP-A-2005-247581

In the logistics market, three temperature zones are used for delivery and storage, and customers can choose which temperature zones to use for delivery. The three temperature zones refer to three temperature zones: normal temperature 10°C to 15°C, refrigeration minus 5°C to plus 5°C, and freezing minus 15°C or less.
As in the above Patent Document 1, if the purpose is to reduce the cost of small-lot delivery of frozen products, it is costly to deliver frozen products and refrigerated products together using a vehicle at room temperature instead of using a refrigerated vehicle in the first place. The benefits are even higher.

On the other hand, in the food distribution process, efforts must be made to maintain product quality. When shipping frozen or refrigerated products by freezer or refrigerated trucks, the door must be opened and closed frequently to load and unload cargo. Therefore, there is a possibility that the delivery method of Patent Document 1 cannot be used. In the first place, if it is possible to deliver frozen products and refrigerated products together in a vehicle at room temperature, there will be no need for equipment such as freezer trucks or refrigerated trucks, and the cost advantage will be even greater.

Furthermore, in the case of frozen products and refrigerated products, there is the inconvenience that when the customer is absent, the product must be redelivered when the customer is absent, which further increases the cost. Even if the customer is not at home, if the package can be left at the front door for a certain period of time, the cost advantage will be even greater.

In order to solve the above problems, the present invention provides a frozen/refrigerated parcel delivery method that enables the delivery of fresh food delivered by a home delivery company over a short distance without the need for freezing/refrigerating equipment. for the purpose.

In order to achieve the above object, the delivery method of the present invention is a method for delivering frozen or refrigerated products, and is characterized by using a preservative comprising a mixture of ice and salt. According to this delivery method, it is possible to deliver frozen products and refrigerated products together using normal temperature vehicles without using conventional freezer vehicles or refrigerator vehicles (chilled vehicles).

Further, in the preservative used in the delivery method of the present invention, the concentration of the preservative obtained by mixing ice and salt is 2.0 to 23.3%, and the salt is 1% for the entire preservative. .9 to 18.9% by mass, and the ice is preferably 81.1 to 98.1% by mass of the preservative as a whole.

Further, the preservative used in the delivery method of the present invention is characterized in that the temperature of the preservative is -15°C or lower, or in the temperature range of -5°C or higher and +5°C or lower. According to this delivery method, a constant temperature can be maintained for a certain period of time without being affected by temperature changes caused by opening and closing the doors of conventional refrigerating or refrigerating vehicles.

When the temperature zone of the preservative used in the delivery method of the present invention is -15°C or lower, the temperature zone is maintained for 1 to 11 hours even if the outside temperature is 30°C. Further, the temperature zone is maintained for 9 hours to 19 hours when the outside air temperature is 20°C.

In addition, even when the temperature range of the preservative used in the delivery method of the present invention is within the range of -5°C to +5°C and the outside temperature is 30°C, the temperature range is maintained for 10 to 26 hours. characterized by Further, the temperature range is maintained for 10 to 40 hours when the outside air temperature is 20°C.

Also, in the delivery method of the present invention, a preservative made by mixing ice, water and salt may be used instead of ice and salt.

In the delivery method of the present invention, the total concentration of the preservative is 0.3 to 2.5% in water and salt water, and the total concentration of the preservative is 30 to 50% by mass. It is preferable that the total amount of the preservative is 50 to 70% by mass.

Further, in the delivery method of the present invention, when the concentration of saline is less than 0.3% and when the preservative as a whole is less than 30% by mass, dripping of the food may increase and the flavor may deteriorate. . If the salt solution concentration exceeds 2.5% or if the preservative as a whole exceeds 50% by weight, the taste of the food will be greatly affected, and the flavor may be reduced.

Also, if the mass % of ice in the total preservative is less than 50%, the proportion of salt water increases, so the taste of the food is greatly affected, and the flavor may be reduced. On the other hand, if the mass % of ice in the total preservative exceeds 70%, the proportion of salt water decreases, which may increase dripping of the food and reduce its flavor.

In the delivery method of the present invention, food is stored or immersed in a preservative containing a mixture of ice and salt, or in a preservative containing a mixture of ice, water, and salt. characterized by becoming According to this delivery method, individual delivery and individual delivery of frozen/refrigerated parcels can be realized while maintaining a predetermined temperature for a certain period of time, compared with the conventional delivery method.

Moreover, in the delivery method of the present invention, the container is preferably a bag-shaped or box-shaped container such as a plastic bag or an aluminum pouch container. According to this configuration, the food can be easily packaged for transportation and storage, and external influences on the contents can be suppressed. In particular, the container can be transported and stored more easily by further including a cardboard box or a styrofoam box capable of accommodating a plurality of the containers.

In addition, in the delivery method of the present invention, a box containing a preservative and a frozen product or a refrigerated product can be loaded and delivered on a passenger car, a motorcycle or a drone. It is also possible to respond to customer needs.

According to the present invention, it is possible to provide a delivery method for a frozen/refrigerated parcel delivered by a home delivery company, which enables the delivery of the parcel delivered by the parcel delivery company over a short distance without the need for freezing/refrigerating equipment.

In addition, according to the present invention, frozen products and refrigerated products can be delivered together using normal-temperature vehicles such as passenger cars that do not have refrigeration/manufacturing facilities, without using conventional freezer trucks or refrigerated trucks (chilled trucks). In addition, even if a vehicle with refrigeration/freezing equipment is used for delivery, a constant temperature is maintained for a certain period of time without being affected by temperature changes caused by opening and closing the doors of conventional freezer or refrigerator vehicles. In addition, it is possible to deliver frozen products and normal temperature products together, and refrigerated products and normal temperature products together.

In addition, since the predetermined temperature is maintained for a certain period of time, it is possible to deal with so-called placement, in which parcels are left at the front door for delivery.

Further, according to the present invention, it is possible to further reduce the cost required for physical distribution.

Explanatory drawing which shows each structure in embodiment of this invention. 5 is a graph showing the results of a temperature change test of a preservation method using a styrene foam box containing frozen products under a constant temperature environment of 30° C. according to Embodiment 1 of the present invention. 5 is a graph showing the results of a temperature change test of a preservation method using a styrene foam box containing frozen products in an environment of a constant temperature of 20° C. according to Embodiment 1 of the present invention. 4 is a graph showing the results of a temperature change test of a storage method using a polystyrene foam box containing refrigerated products under a constant temperature environment of 30° C. according to Embodiment 1 of the present invention. 4 is a graph showing the results of a temperature change test of a storage method using a polystyrene foam box containing refrigerated products under a constant temperature environment of 20° C. according to Embodiment 1 of the present invention.

Next, the preservative used in the delivery method, which is one example of the embodiment of the present invention, will be described with reference to FIGS. 1 to 5. FIG. The preservative 1 of Embodiment 1 is a mixture of ice and salt.

The preservative used in the delivery method of the embodiment of the present invention is a mixture of salt and ice, where the salt is table salt and the ice is block-shaped rock ice.

In Examples 1 and 2, 2,000 g of ice was mixed with 40 g of salt, and in Examples 3 and 4, 2,000 g of ice and 466 g of salt were mixed so that the concentration of ice and salt was 2.0 to 23.3%. to mix. In this embodiment, the ratio is adjusted so that the sum of the weight percentages of salt and ice is 100%. It is preferable that the salt is 1.9 to 18.9% by mass of the preservative as a whole, and the ice is 81.1 to 98.1% by mass of the preservative as a whole.

Products to which the preservative of the present embodiment is applied are frozen products or refrigerated products. In this example, experiments were conducted using food as the content, but the frozen and refrigerated products of the present invention are not limited to food, and medical products such as blood, medicines, and vaccines are also possible.

In this embodiment, as preservatives used in the delivery method of the present invention, a preservative obtained by mixing a predetermined amount of ice and salt, a logger for measuring temperature change, and a box containing frozen or refrigerated products, The device is left in an environment where the outside air temperature is constant, and the time required for the temperature change is inspected.

The analysis device used for the temperature change inspection of the first embodiment is a low temperature constant temperature and humidity device (manufactured by Espec Co., Ltd., model number PSL-4J), and the analysis conditions are a temperature of 30 ° C. and a humidity of 60% for 48 hours. , using an analyzer of a public testing institute (Tochigi Prefectural Industrial Technology Center) that satisfies the conditions of maintaining a temperature of 20 degrees and a humidity of 60% for 72 hours. A certificate has been obtained from the relevant public testing institute for this experimental environment.

In addition, the frozen product used in the temperature change inspection of this embodiment was a frozen product with a temperature measurement logger installed inside, and the entire product was wrapped in 2 kg of rock ice to which 466 g of salt was added and sealed in an aluminum pouch. A polystyrene foam box (inner dimensions: 350 mm x 265 mm x 232 mm, outer dimensions: 400 mm x 314 mm x 280 mm) sealed with packing tape was used with the two aluminum pouches placed therein. Alternatively, a cardboard box (inner dimensions: 370 mm x 253 mm x 270 mm, outer dimensions: 388 mm x 263 mm x 285 mm) was used instead of the styrene foam box.

In addition, the refrigerated product used in the temperature change inspection of this embodiment was wrapped in 2 kg of rock ice to which 40 g of salt was added to the refrigerated product with a temperature measurement logger installed inside, and was enclosed in an aluminum pouch. A polystyrene foam box (inner dimensions: 350 mm x 265 mm x 232 mm, outer dimensions: 400 mm x 314 mm x 280 mm) sealed with packing tape was used with the two aluminum pouches placed therein. Alternatively, a cardboard box (inner dimensions: 370 mm x 253 mm x 270 mm, outer dimensions: 388 mm x 263 mm x 285 mm) was used instead of the styrene foam box.

As described above, frozen foods and refrigerated foods were divided into styrofoam boxes and cardboard boxes, and the temperature changes of the contents stored in the cardboard boxes and styrofoam boxes were measured in constant temperature environments of 30°C and 20°C. gone. Regarding the frozen foods related to this experiment, A and B are the submitted products at 20°C, and E and F are the submitted products at 30°C. On the other hand, regarding the refrigerated foods related to this experiment, C and D are the submitted products at 20°C, and G and H are the submitted products at 30°C.

FIG. 2 is a graph showing the results of a temperature change test of a preservation method using a Styrofoam box containing frozen products under a constant temperature environment of 30° C., 60% humidity, and 48 hours according to the embodiment of the present invention. be. A frozen food with a logger for temperature measurement installed inside was wrapped in 2 kg of rock ice to which 466 g of salt was added and sealed in an aluminum pouch. A sealed polystyrene foam box (inner dimensions: 350 mm x 265 mm x 232 mm, outer dimensions: 400 mm x 314 mm x 280 mm) was used.

FIG. 3 is a graph showing the results of a temperature change test of a storage method using a Styrofoam box containing frozen products under a constant temperature environment of 20° C., 60% humidity, and 72 hours according to the embodiment of the present invention. be. A frozen food with a logger for temperature measurement installed inside was wrapped in 2 kg of rock ice to which 466 g of salt was added and sealed in an aluminum pouch. A sealed polystyrene foam box (inner dimensions: 350 mm x 265 mm x 232 mm, outer dimensions: 400 mm x 314 mm x 280 mm) was used.

FIG. 4 is a graph showing the results of a temperature change test of a storage method using a Styrofoam box containing refrigerated products under a constant temperature environment of 30° C., 60% humidity, and 48 hours according to the embodiment of the present invention. be. A refrigerated product with a logger for temperature measurement installed inside was wrapped in 2 kg of rock ice to which 40 g of salt was added and sealed in an aluminum pouch. A sealed polystyrene foam box (inner dimensions: 350 mm x 265 mm x 232 mm, outer dimensions: 400 mm x 314 mm x 280 mm) was used.

FIG. 5 is a graph showing the results of a temperature change test of a storage method using a Styrofoam box containing refrigerated products under a constant temperature environment of 20° C., 60% humidity, and 72 hours according to the embodiment of the present invention. be. A refrigerated product with a logger for temperature measurement installed inside was wrapped in 2 kg of rock ice to which 40 g of salt was added and sealed in an aluminum pouch. A sealed polystyrene foam box (inner dimensions: 350 mm x 265 mm x 232 mm, outer dimensions: 400 mm x 314 mm x 280 mm) was used.

Regarding the frozen food of this embodiment, when the time period during which the internal temperature was maintained at -15 ° C. or less was measured, in the environment of 30 ° C., in the case of a styrofoam box, the maximum temperature was 11 hours and 20 minutes, and -15 ° C. The result was that the temperature was kept below °C. Also, in an environment of 20° C., similarly, in the case of a box made of polystyrene foam, a result was obtained in which the temperature was maintained at -15° C. or less for a maximum of 19 hours and 20 minutes.

Regarding the refrigerated product of this embodiment, when the time zone in which the internal temperature is maintained at -5 ° C. or more and +5 ° C. or less is measured, in an environment of 30 ° C., in the case of a styrofoam box, the maximum time is 14 hours 30 A result was obtained in which the temperature range of -5°C or more and +5°C or less was maintained for one minute. Also, in the environment of 20° C., similarly, in the case of a box made of expanded polystyrene, a result was obtained in which the temperature range of -5° C. or more and +5° C. or less was maintained for a maximum of 40 hours and 40 minutes.

Similarly, in an environment of 30°C and 20°C, experiments were conducted on the temperature retention of frozen and refrigerated products placed in cardboard boxes. The following temperature range was maintained, and when the air temperature was 20°C, the result was obtained that the temperature range was kept from -5°C to +5°C for a minimum of 10 hours to a maximum of 40 hours.

Fig. 2 shows a table of accumulated temperature retention times for predetermined temperatures for frozen food or refrigerated food; When Submissions A and B are frozen products and Submissions C and D are refrigerated products, and they are left in a temperature environment of 20°C and 60% humidity for 72 hours, the time during which the temperature range is kept below -15°C. is the result of Supplements E and F are frozen products, and G and H are refrigerated products. Four temperature measurement loggers are used to measure the temperature retention time for each submission.

In the present embodiment, since the predetermined temperature is maintained for a certain period of time, the delivery method of the present invention is preferably delivery of frozen/refrigerated parcels.

For refrigerated home delivery items, for example, foods such as meat, fresh fish, meat products, processed marine products, dairy products, processed vegetables, and processed fruits are preferable. However, the present invention is not limited to the above food products, and can be applied to a wide range of products that require delivery and storage in a temperature range of -5°C to +5°C.

For frozen delivery items, general frozen foods such as dumplings, fried rice, and fried chicken are preferable. The present invention is not limited to the above foods, but can be applied to a wide range of products that require delivery and storage in a temperature range of -15°C or lower.

In the present invention, by changing the amounts and concentrations of ice and salt, it is possible to maintain a predetermined temperature for a certain period of time, so the temperature range is not limited to the above temperature range.

As described above, according to each embodiment of the present invention, the frozen contents 4 can be kept in a temperature range of -15°C or less for at least 10 to 26 hours in a temperature environment of 30°C, In a temperature environment of 20° C., the result was obtained that the temperature range of −5° C. to +5° C. can be maintained for 10 hours to 40 hours. In addition, the refrigerated contents 4 can be kept in a temperature range of -15°C or less for at least 1 to 11 hours, and in a temperature environment of 20°C, it can be kept -5°C to -5°C for 9 to 19 hours. A result was obtained in which a temperature range of plus 5°C could be maintained. In view of these results, the results of the temperature retention time sufficient for last one mile distribution in the distribution market, that is, short-distance small-lot deliveries and personal deliveries were obtained. In addition, in the embodiment of the present invention, the container 6 is an aluminum pouch container, or in addition to this, the cardboard box 7 or the styrofoam box 7 is used for packaging, so the packaging material is simple and versatile. Cost can be reduced.

In each of the above embodiments, the preservative 1 is made of ice and salt, but water may also be added. The contents 4 are not limited to those of the above-described embodiment, and may include a wide range of ingredients such as beef, pork, chicken, horsemeat, and seafood, as well as medical products such as blood, medicines, and vaccines. As for the container 6, a vinyl bag or an aluminum pouch container is preferable as in the above embodiment, but other synthetic resin bags or a synthetic resin container with a lid having a certain degree of rigidity may be used. Moreover, the container is not limited to the above, and a bag-like or box-like container is also possible.

DESCRIPTION OF SYMBOLS 1... Preservative, 2... Phosphate-buffered saline (PBS), 3... Ice or crushed ice, 4... Food, 5... Meat paper, 6... Container, 7... Box.

Claims (12)

A method of delivering frozen or refrigerated goods, comprising:
A delivery method characterized by using a preservative made by mixing ice and salt. The delivery method according to claim 1,
A delivery method, wherein the preservative container is a bag. The delivery method according to claim 1 or claim 2,
A delivery method, wherein the concentration of the preservative is 2.0-23.3%. The delivery method according to claims 1 to 3,
A delivery method, wherein the temperature of the preservative is -15°C or lower, and the temperature zone is maintained for 1 to 11 hours when the outside temperature is 30°C. The delivery method according to claims 1 to 3,
A delivery method, wherein the temperature of the preservative is -15°C or less, and the temperature range is maintained for 9 to 19 hours when the outside temperature is 20°C. The delivery method according to claims 1 to 3,
A delivery method, wherein the temperature of the preservative is in the range of -5°C or more and +5°C or less, and the temperature zone is maintained for 10 to 26 hours when the outside temperature is 30°C. The delivery method according to claims 1 to 3,
A delivery method, wherein the temperature of the preservative is in the range of -5°C or more and +5°C or less, and the temperature zone is maintained for 10 to 40 hours when the outside temperature is 20°C. The delivery method according to any one of claims 1 to 7,
A delivery method, wherein the container is bag-shaped or box-shaped. The delivery method according to any one of claims 1 to 8,
The delivery method, wherein the container further includes a bag-like or box-like container capable of accommodating a plurality of the containers. The delivery method according to any one of claims 1 to 9,
A delivery method, wherein the container is loaded on a vehicle. The delivery method according to any one of claims 1 to 9,
A delivery method, wherein the container is loaded on a two-wheeled vehicle. The delivery method according to any one of claims 1 to 9,
A delivery method, wherein the container is loaded onto a drone.

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