WO2017085836A1 - Récipient de stockage froid en papier - Google Patents

Récipient de stockage froid en papier Download PDF

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Publication number
WO2017085836A1
WO2017085836A1 PCT/JP2015/082557 JP2015082557W WO2017085836A1 WO 2017085836 A1 WO2017085836 A1 WO 2017085836A1 JP 2015082557 W JP2015082557 W JP 2015082557W WO 2017085836 A1 WO2017085836 A1 WO 2017085836A1
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WO
WIPO (PCT)
Prior art keywords
box
film
inner box
cold storage
thermal radiation
Prior art date
Application number
PCT/JP2015/082557
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English (en)
Japanese (ja)
Inventor
顕 是洞
通浩 的井
Original Assignee
ヤマト包装技術研究所株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ヤマト包装技術研究所株式会社 filed Critical ヤマト包装技術研究所株式会社
Priority to JP2017551466A priority Critical patent/JPWO2017085836A1/ja
Priority to PCT/JP2015/082557 priority patent/WO2017085836A1/fr
Publication of WO2017085836A1 publication Critical patent/WO2017085836A1/fr

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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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/56—Linings or internal coatings, e.g. pre-formed trays provided with a blow- or thermoformed layer
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation

Definitions

  • the present invention relates to a paper cold storage container excellent in heat insulation, and particularly to a paper cold storage container suitable for home delivery such as fresh food and frozen food.
  • Patent Document 1 discloses that a box body formed of paperboard, a lid formed of paperboard, and a soft A soft sheet formed by laminating paper materials having a property, and a protrusion attached to either the lid or the soft sheet, the soft sheet is attached to the box body, and the lid A cold storage box has been proposed in which the opening of the box body is closed by being sandwiched between the box bodies so that the inside of the box body is kept airtight.
  • Patent Document 1 is basically intended to maintain the cold insulation property by sandwiching a soft sheet between the box body and the lid and enhancing the airtightness by the compression.
  • Patent Document 2 the cold insulation and the heat insulation are proposed.
  • paper packaging box using corrugated cardboard with excellent effects paper having a double wall structure in which hollow chambers are provided in the body, bottom and lid of the cardboard box, and the inner surface of each hollow chamber is formed on a heat reflecting surface Proposed packaging box. Corrugated paper is effective when used for the board of a cold container. *
  • Corrugated paper has a sheet-like (plate-like) laminated structure in which a core that is processed into a fluted (corrugated) shape is affixed to a liner, and is further reinforced with a liner on the back side. Can further enhance the cooling effect.
  • Patent Document 2 air in the hollow chamber provided in the body, bottom, and lid of the cardboard box hinders heat conduction from the outside, and the inner surface of the hollow chamber is a heat reflecting surface. Radiation heat from the outside is also reflected by this heat reflecting surface and does not reach the inside of the box and is excellent in heat insulation, and of course it can maintain its freshness when packaging, storing and transporting fresh food Even if hot cooked foods are packaged, the effect that they can be carried by hand because they do not cool and heat does not reach the outer surface is emphasized. *
  • the problem to be solved is that the double-wall structure of the trunk, bottom and lid of the cardboard box not only makes the structure complicated, but also requires that a dedicated cardboard box be assembled as a cold storage container.
  • an attempt to form a heat shut-off chamber in the body portion, the bottom portion, and the lid portion is not always effective.
  • the present invention is a paper cold storage container comprising a combination of inner and outer double cardboard boxes in which an inner box is housed in an outer box for the purpose of providing a simple cold storage container using a cardboard box. And a thermal radiation suppressing film.
  • the heat insulation layer is an air layer formed between the inner box and the outer box
  • the thermal radiation suppression film is a film formed using a low emissivity material such as metal, and is applied to the entire inner surface of the inner box. The greatest feature is that it suppresses the release of heat energy emitted from the cold storage material stored in the inner box to the outside of the inner box.
  • the thermal radiation suppressing film can be added to the entire inner surfaces of the inner box and the outer box.
  • the outer surface of the outer box is an exposed surface of corrugated paper, and the exposed surface of the corrugated paper can be used as a display surface by printing or the like as well as a pasting surface of a delivery slip for home delivery.
  • the cold storage material stored in the inner box is used as a cold heat source, the release of the heat energy to the outside of the inner box is suppressed, and the cold storage material in the inner box can be kept at a low temperature for a long time. Furthermore, by adding a heat radiation suppressing film to the entire inner surface of the outer box, heat radiation from the inner box is suppressed by using the inner box as a cooling heat source, and as a result, the outer box of the heat energy of the cold-retained material released to the outside of the inner box Diffusion to the outside can be suppressed.
  • the exposed surface of the corrugated paper on the outer surface of the outer box can be used as a sticking surface or a printing surface for delivery slips for home delivery and other seals in the same manner as an ordinary corrugated cardboard box in appearance.
  • the cold storage container can be assembled only by supporting the upper and lower corners of the inner box with the pad and storing the pad in the outer box, and the space formed between the inner box and the outer box is air. It becomes a heat insulation layer by the layer, and the cold-reserved material in the inner box is effectively shielded from the outside air, so that it can be kept for a long time.
  • a thermal radiation suppression film having an emissivity of about 0.5 is added to the inner surface of the inner box and the inner surface of the outer box of the corrugated cardboard box that is secured inside and outside by securing a certain space as an air layer. And the heat insulation performance comparable as a foamed polystyrene box was obtained.
  • FIG. 5 is a sectional view taken along line XX in FIG. 4. It is an assembly drawing of a corner pad. It is an expanded view of a corner pad. It is a graph which shows the relationship between the emissivity and temperature arrival time about an Example and a comparative example. It is a sample list of the formation combination pattern of the thermal radiation suppression film
  • the present invention provides a courier service that suppresses the release of heat energy emitted from the cold storage material stored in the inner box by adding a heat radiation suppression film to the inner surface of the inner box of the corrugated cardboard box combined inside and outside.
  • a suitable paper cold container was realized. Examples of the present invention will be described below.
  • a paper cold storage container uses two large and small cardboard boxes, a small cardboard box is an inner box 1, a large cardboard box is an outer box 2, and a corner pad 4 is used in the outer box 2.
  • the inner box 1 is composed of a combination of inner and outer cardboard boxes, and a heat radiation suppressing film 3 is added to at least the entire inner surface of the inner box 1 as shown in FIG.
  • the thermal radiation suppression film 3 is a film formed by, for example, pasting, applying, or depositing a metal film of an aluminum foil, an aluminum vapor deposition film, an aluminum-containing paint / coating film, or the like.
  • the material is not limited to aluminum, and various materials other than metal can be used as the low emissivity material as long as the emissivity material is lower than the emissivity of 0.90 of the corrugated cardboard sheet.
  • the emissivity of a metal varies depending on the surface condition, but typical metals include, for example, aluminum (0.039 to 0.18), copper (0.02 to 0.78), silver, gold (0.02 To 0.03), stainless steel (0.36 to 0.44), and other metal-containing ceramics such as alumina ceramics (0.44 to 0.93) and magnesia ceramics (0.18 to 0.55).
  • emissivity such as ceramics (0.5), alumina earthenware (0.3), carbon (0.85), silica powder (0.3), fiberglass (0.75), mica (0.72) Those lower than 0.90 can be used as the low emissivity material in the present invention.
  • the present invention realizes a concept of keeping cold by suppressing as much as possible the heat radiation of the cold insulator P accommodated in the inner box 1 by coating the corrugated board surface with the thermal radiation suppressing film 3 made of a low emissivity material.
  • heat conduction transfers heat indirectly by mediating the flow of fluid by direct contact without moving objects and convection.
  • heat radiation is a phenomenon in which internal energy is emitted from a heated object in the form of electromagnetic waves, and is also referred to as heat radiation.
  • the present invention realizes the concept of keeping the temperature of the cold-retained object P accommodated in the inner box 1 at a low temperature for as long as possible while suppressing heat radiation as much as possible.
  • the cold-retained object P accommodated in the inner box 1 is viewed as a cold heat source, it is the inner surface of the inner box 1 that faces the cold heat source. Therefore, by adding the heat radiation suppressing film 3 to the entire inner surface of the inner box 1 facing the cold insulator P, the release of the thermal energy emitted from the cold insulator P to the outside of the inner box 1 is suppressed.
  • the thermal energy from the outside is conducted to the inside of the outer box 2 as an electromagnetic wave after being conducted through the air layer of the corrugated cardboard sheet of the outer box 2, and by convection transmission from the inside of the outer box 2 to the outer surface of the inner box 1.
  • the electromagnetic wave is emitted into the inner box 1 as an electromagnetic wave.
  • the heat radiation suppressing film 3 attached to the inner surface of the outer box 2 allows the electromagnetic box 1 The amount released to the inside can also be suppressed.
  • the heat radiation suppression film 3 when the heat radiation suppression film 3 is added to the outer surface of the inner box 1 or the outer surface of the outer box 2, the heat radiation suppression film 3 becomes a heat conduction source and is released to the outside of the cold heat source, or an external heat source. Therefore, it is not always desirable to add a heat radiation suppressing film to the outer surface of the inner box 1 or the outer surface of the outer box 2.
  • 3 (a) and 3 (b) are developed views when the A-type cardboard box is used for the outer box and the inner box.
  • 3A and 3B are development views of the cardboard box as viewed from the inner surface side of the box.
  • a heat radiation suppressing film 3 is formed on the inner surface side of the inner box 1 and the outer box 2.
  • the outer surface of the inner box 1 and the outer surface of the outer box 2 are exposed surfaces of the cardboard sheet.
  • the configuration of the inner box 1 is shown below.
  • the inner box is composed of the four peripheral walls of the front portion 1a, the left side portion 1b, the back portion 1c, and the right side portion 1d, and the outer lid portion 1f and the outer bottom connected to the upper and lower edges of the front portion 1a and the rear portion 1c. It consists of a portion 1g, an inner lid portion 1h and an inner bottom portion 1i attached to the upper and lower edges of the left and right side surface portions 1b and 1d.
  • the front part 1a, the left side part 1b, the back part 1c, and the right side part 1d are bent in order to form four sides of the box, and the edges of the front part 1a and the right side part 1d are joined.
  • the inner bottom portions 1i and 1i attached to the lower edges of the left and right side surface portions 1b and 1d are folded upward, and the outer bottom portion 1g connected to the lower edges of the front portion 1a and the rear portion 1c is further abutted. Folding is performed, and the open end edges of both outer bottom portions 1g and 1g are sealed with an adhesive tape (not shown).
  • the procedure for covering the outer box 2 with the inner lid portion 1h and the outer lid portion 1f is the same.
  • the cardboard box applied to the present invention is not limited to the A type. B type, C type, etc. may be used. Existing types of cardboard boxes can be used as they are.
  • the procedure for assembling the outer box 2 into a box shape is exactly the same as the procedure for assembling the outer box.
  • the components of the outer box 2 correspond to the components of the inner box 1, and suffixes a to i are added to the outer box number 2 to explain the developed shape of the outer box 2.
  • a description of the procedure for assembling into a box shape is omitted.
  • the cold-retained material P to be kept at a low temperature is stored in the assembled inner box 1, and the inner box 1 containing the cold-retained material P is supported in the outer box 2 by supporting the upper and lower edges of the four corners (total of 8 places) with the corner pad 4.
  • the inner lid parts 1h and 1h are folded in a facing direction, then both outer lid parts 1f and 1f are folded against each other, and the open edges of both outer lid parts 1f and 1f are sealed with adhesive tape.
  • packing is completed as shown in FIG.
  • FIG. 5 shows a cross section taken along line XX of FIG. A space between the outer box 2 and the inner box 1 becomes a heat insulating layer 5 formed by an air layer.
  • the corner pad 4 is used to secure the space on the upper and lower surfaces and the four peripheral wall surfaces of the inner box 1 and hold them in the outer box 2, and as shown in FIG.
  • the pedestal portion 4a to be supported, a rising portion 4b formed in the thickness direction thereof, and an overhanging portion 4c formed by being raised in front of the pedestal portion 4a.
  • the corner pad 4 can be assembled by folding a sheet of corrugated cardboard as shown in the developed view of FIG.
  • the corner pad 4 is an example for supporting the upper and lower edges of the inner box 1 and forming an air layer serving as a heat insulating layer between the outer box 2 and the inner box 1.
  • an air layer may be formed between the outer box 2 and the inner box 1 by supporting the upper and lower edges of the inner box 1, and means for forming an air layer between the outer box 2 and the inner box 1. Is not necessarily limited to the corner pad 4.
  • the heat radiation suppressing surface 3 is a film (for example, aluminum foil, aluminum vapor deposition film, aluminum formed on the entire inner surface of the inner box 1 and, if necessary, the entire inner surface of the outer box 2 using a low emissivity material such as metal. Such as paints and coatings) and metal film deposition (aluminum deposition film, etc.).
  • the entire inner surface of the inner box 1 means all surfaces that directly face the cold insulation material P accommodated in the inner box. Strictly speaking, the front portion 1a, the left side portion 1b, and the rear portion of the inner surface of the inner box 1 are defined. 1c, the front part which faces the gap between the constituent parts of the four peripheral walls of the right side surface part 1d, the inner lid part 1h and the inner bottom part 1i attached to the upper and lower edges of the left and right side parts, the inner lid part 1h and the inner bottom parts 1i Although it is a part of the outer lid portion 1f and the outer bottom portion 1g connected to the upper and lower edges of the portion 1a and the back portion 1c, the heat radiation suppressing surface 3 is formed on the entire inner surface of the outer lid portion 1f and the outer bottom portion 1g. It may be done. The same applies to the entire inner surface of the outer box 2.
  • the temperature arrival time of the cold-retained material accommodated in the inner box was measured.
  • the outer box inner dimensions: 356 x 276 x 168) and inner box (inner dimensions: 300 x 220 x 108) are made of A-type cardboard boxes, and a thermal radiation suppressing film with samples A to D added thereto.
  • the inner box and the outer box the upper and lower four corners of the inner box were supported by corner pads, and a uniform air layer was formed on the four sides and the upper and lower sides of the inner box.
  • a box (single box) having the same internal dimensions and inner surface area as the inner box and subjected to the following treatments E to H was prepared, and the temperature arrival time of the cold-retained material housed in the box was measured. Further, as reference examples, the temperature arrival times of the cold-reserved materials housed in the boxes of I and J were also measured.
  • the “temperature arrival time” of the cold-retained material housed in the box was calculated by the following procedure.
  • Step 1 Attach a thermocouple sensor to the center of the test package type 1 (manufactured by Kanto Chemical Co., Ltd.) and completely freeze it at -20 ° C for each sample (A to J, No. 1 to No. 16). It was left in the center of the box.
  • Step 3 From the temperature recording data of the thermocouple sensor, the time from reaching the temperature of 15 ° C. immediately after being put into the 40 ° C. environment was calculated as the “temperature arrival time”.
  • the single boxes E to H of the comparative example also have a strong negative correlation between “emissivity” and “temperature arrival time” similar to the inner and outer double boxes, and significant difference and heat insulation performance between the inner and outer double boxes. The superiority of the double box inside and outside was confirmed.
  • thermo radiation suppression film 3 having an emissivity of about 0.5. Therefore, as shown in FIG. 9, the inner and outer surfaces of the inner box and the outer box, sample No. 1 in which the aluminum foil having the emissivity of 0.06 used in the sample A was added as the thermal radiation suppressing film. 1-No. Evaluation was performed for all 16 combinations of 16 patterns.
  • FIG. 1 The result of evaluation is shown in FIG. Incidentally, in FIG. 1 is sample D, sample no. 16 corresponds to the sample A. As is apparent from FIG. The 12 combination patterns showed the longest temperature arrival time.
  • Sample No. No. 12 is an example in which a heat radiation suppressing film is added to the inner surface of the inner box and the inner surface and outer surface of the outer box.
  • No. 11 pattern No. This was a good result equivalent to 12.
  • Sample No. The pattern 11 is an example in which a thermal radiation suppressing film is added only to the inner surface of the inner box and the inner surface of the outer box.
  • sample No. 1 in which a thermal radiation suppressing film is added only to the inner surface of the inner box.
  • No. 9 is a sample No. 9 in which a heat radiation suppressing film is added to the outer surface of the inner box or the inner and outer surfaces of the outer box. Obviously a longer time to reach the temperature was obtained than in the 2-8 pattern.
  • the thermal radiation suppressing film is added to the entire inner surface of the inner box, and further to the entire inner surface of the outer box.
  • the heat radiation suppression film can be applied only to the inner surface of the inner box and the inner surface of the outer box, even if it is not added to the inner and outer surfaces of the inner box and all the inner and outer surfaces of the outer box.
  • the outer surface of the inner box may be an obstacle to radiation suppression due to increased heat conduction.
  • the effect by adding about the outer surface of an outer box was not recognized.
  • the present invention is useful as a cold storage container for transporting fresh foods, frozen foods and other cold storage products, particularly as a delivery box made of courier paper.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

L'invention concerne un récipient simple de stockage froid qui est constitué par des boîtes en carton ondulé. La présente invention comprend une combinaison de deux boîtes en carton dans laquelle une boîte interne (1) est contenue dans une boîte externe (2) et possède une couche d'isolation thermique (5) et un film d'inhibition de rayonnement thermique (3). La couche d'isolation thermique (5) est une couche d'air formée entre la boîte interne (1) et la boîte externe (2) ; le film d'inhibition de rayonnement thermique (3) est un film formé par l'utilisation d'un matériau à faible facteur d'émission tel qu'un métal pour empêcher l'énergie thermique, émise par un objet conservé au froid (P) à l'intérieur de la boîte interne (1), d'être évacuée vers l'extérieur de la boîte interne (1), et le film d'inhibition de rayonnement thermique (3) est appliqué sur la totalité de la surface interne de la boîte interne (1). Le film d'inhibition de rayonnement thermique (3) appliqué sur la surface interne de la boîte interne (1) empêche l'énergie thermique de l'objet conservé au froid (P) à l'intérieur de la boîte interne (1) et qui agit comme source de chaleur froide, d'être évacuée vers l'extérieur de la boîte interne (1), quand il est appliqué sur la surface interne de la boîte externe (2), le film d'inhibition de rayonnement thermique (3) empêchant la diffusion, vers la boîte externe, de l'énergie thermique de l'objet conservé au froid (P) d'être évacuée vers l'extérieur de la boîte interne (1), la boîte interne (1) servant de source de chaleur froide.
PCT/JP2015/082557 2015-11-19 2015-11-19 Récipient de stockage froid en papier WO2017085836A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2017551466A JPWO2017085836A1 (ja) 2015-11-19 2015-11-19 紙製保冷容器
PCT/JP2015/082557 WO2017085836A1 (fr) 2015-11-19 2015-11-19 Récipient de stockage froid en papier

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Application Number Priority Date Filing Date Title
PCT/JP2015/082557 WO2017085836A1 (fr) 2015-11-19 2015-11-19 Récipient de stockage froid en papier

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WO2017085836A1 true WO2017085836A1 (fr) 2017-05-26

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019088647A1 (fr) * 2017-10-31 2019-05-09 이정숙 Boîte d'emballage à fonction d'isolation contre la chaleur et le froid
JP2020139706A (ja) * 2019-02-28 2020-09-03 日立グローバルライフソリューションズ株式会社 断熱箱体およびこれを備える冷蔵庫
JPWO2020255886A1 (fr) * 2019-06-17 2020-12-24

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62177617U (fr) * 1986-04-30 1987-11-11
JPS6357220U (fr) * 1986-10-01 1988-04-16
JPS63154431U (fr) * 1986-09-19 1988-10-11
JPH03123822U (fr) * 1990-03-28 1991-12-16
JPH0536676Y2 (fr) * 1987-06-19 1993-09-16
JPH1179159A (ja) * 1997-09-05 1999-03-23 Sanko:Kk 再使用に適した構造を有する梱包用紙箱、及びこの梱包用紙箱を含む梱包用キット
JP2000344227A (ja) * 1999-06-09 2000-12-12 Oji Paper Co Ltd 紙製保温保冷ケース
JP2005280743A (ja) * 2004-03-29 2005-10-13 Rengo Co Ltd 保冷包装箱
WO2014147425A2 (fr) * 2013-03-22 2014-09-25 Peli Cool Logistics Limited Emballage

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62177617U (fr) * 1986-04-30 1987-11-11
JPS63154431U (fr) * 1986-09-19 1988-10-11
JPS6357220U (fr) * 1986-10-01 1988-04-16
JPH0536676Y2 (fr) * 1987-06-19 1993-09-16
JPH03123822U (fr) * 1990-03-28 1991-12-16
JPH1179159A (ja) * 1997-09-05 1999-03-23 Sanko:Kk 再使用に適した構造を有する梱包用紙箱、及びこの梱包用紙箱を含む梱包用キット
JP2000344227A (ja) * 1999-06-09 2000-12-12 Oji Paper Co Ltd 紙製保温保冷ケース
JP2005280743A (ja) * 2004-03-29 2005-10-13 Rengo Co Ltd 保冷包装箱
WO2014147425A2 (fr) * 2013-03-22 2014-09-25 Peli Cool Logistics Limited Emballage

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019088647A1 (fr) * 2017-10-31 2019-05-09 이정숙 Boîte d'emballage à fonction d'isolation contre la chaleur et le froid
JP2020139706A (ja) * 2019-02-28 2020-09-03 日立グローバルライフソリューションズ株式会社 断熱箱体およびこれを備える冷蔵庫
JP7285093B2 (ja) 2019-02-28 2023-06-01 日立グローバルライフソリューションズ株式会社 断熱箱体およびこれを備える冷蔵庫
JPWO2020255886A1 (fr) * 2019-06-17 2020-12-24
CN113994161A (zh) * 2019-06-17 2022-01-28 松下知识产权经营株式会社 恒温容器
US11768024B2 (en) 2019-06-17 2023-09-26 Panasonic Intellectual Property Management Co., Ltd. Constant temperature container

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