JPH01167082A - Temperature controlled preservation bag made of composite sheet - Google Patents

Abstract

PURPOSE:To control the temperature of a space easily, which is made by covering a freight with a composite sheet, by combining a composite sheet, which is made by laminating a metal foil to reflect electromagnetic waves in the infrared radiation wavelength region and a sheet member with continuous waveform core, and a control and circulating mechanism for heating or cooling of air. CONSTITUTION:A composite sheet 12A is made by laminating two sheets which are composed of a flat surface body 1A, which is made of aluminum, etc. to reflect infrared radiation, a continuous waveform core 2A, which is made of a material, such as plastic, etc., and a base film 3A, and one sheet which is composed of a base film 3C and a waveform core 2C with the constitution same as above together with air holes 6. A holding frame 13 is placed over and around of an object to be stored 14, and the holding frame 13 is totally covered with the composite sheet 12A. In a space which is divided from the outside by the composite sheet, an airconditioner 15A, which heats, cools, humidifies or dehumidifies the air, and also generates ion, ozone, etc., is arranged to feed a suitable air directly. By doing this, the quality of the stored object 14 can be prevented from deterioration.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a storage bag for simple temperature control purposes that uses a foldable sheet-like composite member to insulate or cool products, and generally to a distribution point or a retail store in a production or consumption area of fresh foods. At stores, etc. or in transportation facilities, we maintain the environmental temperature within an appropriate range to maintain the freshness and quality of the products, and depending on the situation, adjust the humidity or supply ionized air or ozone. When it is necessary to increase the effect, a composite sheet for a cover that is placed over a cargo of goods to limit a space and control the temperature within that space is extremely valuable, and the present invention It has a simple configuration suitable for the purpose.

Some embodiments will be described below with reference to the drawings.

The cross section of the composite sheet of the first example is shown in Figure 1.
Electromagnetic waves in the wavelength range from Pd (micron) to 1mm (millimetre) are classified as infrared rays and are used to transmit heat energy, and aluminum and stainless steel are said to reflect well without absorbing electromagnetic waves in this wavelength range, that is, infrared rays. It is often used to prevent the supply of heat from the outside world.

This foil-like planar body IA made of aluminum or the like, a continuous corrugated core 2A made of synthetic resin or the like and similar to the core of a so-called corrugated paper structure, and a base film 3A.
A composite sheet 12A is made by laminating and polymerizing two sheets as shown in the figure and one sheet as shown in FIG. 3 having the same structure and having ventilation holes 6 in the base film 3C1 and the corrugated core 2C as shown in FIG. As shown in FIG. 9, a holding frame 13 is placed on and around the storage object 14 shown by the two-dot chain line, and completely covered over it as shown in FIG. 10.

In this way, the air conditioning mechanism 15A, which also serves as air heating, cooling, humidification, dehumidification, and generation of ions, ozone, etc., is installed in the space demarcated from the outside by the composite sheet to directly deliver air of the appropriate quality for the purpose. By storing the stored items 140 in the storage area, the stored items 140 are preserved to prevent quality deterioration.

In addition, the air adjustment mechanism is connected to the composite sheet through an air inlet pipe 16 and an air return pipe 17, and is formed by air pressure molding from the core thereof, as shown by the two-dot chain line 15A in the figure. Spaces 11A, 11B, IC111D (first
In addition to filling the composite sheet with air (see figure) to ensure the thickness of the composite sheet, the air passes through the air flow path 10A and the IOB to the ventilation holes 6A and 6.
The air is introduced into the limited air adjustment space through the air space B, and is recovered and circulated through the air recirculation pipe 17 that opens into the air space.

Depending on the nature of the stored items, for example vegetables, the appropriate temperature and necessary humidity are known, and in order to maintain these conditions, the air conditioning mechanism 15A tempers air at an effective temperature and humidity and sends in the air, and adjusts the humidity as necessary. By adding air, ionized air, ozone, etc., sterilization and sterilization are performed to prevent quality deterioration of stored items.

Similar to the previous example, a composite sheet 12B was prepared by laminating and polymerizing a sheet 3N in which a film 5A formed with a raised part 5 and a base film 5B were integrated, and a film IB on which infrared reflection was imparted by vapor deposition of aluminum on the upper surface. Cover and use as shown in the illustration.

In this case, the space 5C formed between the hemispherical hollow protrusion 5 that maintains the thickness of the composite sheet layer and the heat insulation property and the upper base film can be used as an air flow path, and the ventilation hole 6 This allows air to be exchanged with each other or with a limited space.

In both the first and second examples, there is a cover-over type as shown in FIG. 10, and there is also a type in which the holding frame 13 is not used and the storage object is directly covered over as shown in FIG. 13. The air 3tC adjustment mechanism 15d and the composite seat 12a are connected through an air supply pipe 16b and a circulation pipe 17b to perform air circulation, as in the previous embodiment.

A third embodiment is shown in FIG. 6, and a cross section thereof is shown in FIG. 7.

Threads, strings, etc. woven from fibers with a capillary structure or woven materials 7A are adhesively fixed onto aluminum foil or similar infrared reflective material IC as described in the first example above. In the gaps between the woven fibers, etc., a gap filler 7B having physical properties such as low thermal conductivity and high infrared reflective properties is provided, and fibers 8 are bonded to the back of aluminum foil etc. for reinforcement. Composite C) Make 12C.

This composite sheet is placed over a holding frame as shown in FIG. 9 and packaged as shown in FIG. 11, but the air adjustment mechanism may be omitted.

Instead of the air adjustment mechanism, a water retainer 9A or a similar ice bag 9B, which is a sponge-like material housed in a plastic container, is provided on the composite sheet, as shown in FIG. The water in the water retainer or water retaining bag spreads through the threads, strings, etc. on the entire surface of this composite sheet due to capillary action in the threads, strings, etc. (This water absorbs the heat conducted from the back side of the foil IC It evaporates as heat of vaporization and removes heat from the limited space containing the stored items inside the composite sheet and the stored items therein to cool it and provide the effect of refrigeration or air conditioning.

In other words, if the difference between the optimal temperature of the vegetables, etc. to be stored and the ambient temperature is not too large, the use of an expensive air conditioning mechanism can be omitted and the temperature can be sufficiently controlled and stored using this natural evaporation heat extraction method. .

FIG. 8 shows an example of a composite sheet obtained by further polymerizing both the composite sheets of Example 1 and Example 3 described above.

The same is true for the polymerized composite sheets of both the second and third examples, and both have the merits of the former's heat insulation properties and the latter's vaporization heat dissipation properties. Appropriate temperature-controlled storage can be achieved by covering packaging and using the evaporative heat extraction method or air adjustment TM system (when there is a large difference between the environmental temperature and the temperature to be controlled). .

The composite sheet of the fourth implementation example, whose cross section is shown in Fig. 14, has a metal foil ID with high infrared reflectivity and thermal conductivity such as aluminum foil on both sides, and a synthetic resin sponge 16 with elasticity between them. A composite sheet 12D sandwiching a cushioning material with a high heat insulating property is used as a single component or as one of the constituent members of the composite sheet as in the first and second embodiments. It is used as a temperature-controlled storage bag by covering stored items.

As explained above with reference to several embodiments, the present invention has the advantage of enabling sufficient temperature-controlled preservation and storage with a simple and low-cost composite sheet for both household and industrial uses. A big new face

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of the composite sheet of the first example of implementation. Figure 2.3 is a detailed slope view of the continuous corrugated core, which is the main component of the same as above. Figure 4 is a cross-sectional view of the composite sheet of the second example of implementation. Figure 5 is a detailed slope view of the hemispherical hollow protrusion, which is the main component of the above. Figure 6 is a slope of a part of the composite sheet of the third implementation example. Figure 7 is a cross-sectional view of the same. Figure 9 is a slope view of a part of a composite sheet made by further overlapping both the composite sheets of the example and the third example.
Figure 9 shows the stored items in the national policy. Figure 11 shows the preserved slope with the composite sheet covering the top of the holding frame. Figure 11 shows the slope in the preserved state with the composite sheet from the third implementation example covered in the same manner as before. The figure shows a slope in a preserved state with the composite sheet shown in Figure 8 covered in the same manner as in Figure 10. National Policy Figure 13 shows a slope in a preserved state with the composite sheet directly covered over the stored items without using a storage frame. Figure 14 of the national policy is a cross-sectional view of the composite sheet of the fourth implementation example. metal foil or films deposited with these metals 2A, 2B, 2C continuous corrugated core 3A, 3B, 30 base film 4 base film 5 hemispherical hollow protrusion 5A same film 5B base film 5c air flow path 6 ventilation hole 5 D Hollow protrusion Hollow chamber 7A Yarn, string, etc. woven from fibers with capillary structure 7B Gap filler 8 Reinforcing fiber 9A Water retainer 9B Ice bag 10AIOB Air flow path 11A-11D Air Pressure forming spaces 12A to 12E Composite sheet 13 Holding frame 14 Storage items 15.15A, 15B Air adjustment mechanism 16 Sponge material

Claims (1)

[Scope of Claims] (1) A sheet having a continuous corrugated core like a so-called corrugated paper structure in a metal foil such as aluminum, which has the property of reflecting electromagnetic waves mainly in the infrared wavelength range, or a film on which such metal is vapor-deposited. A foldable temperature sensor that combines a composite sheet made by laminating and polymerizing sheet-like members having continuous hemispherical hollow protrusions like a so-called air cap film structure, and an adjustment and circulation mechanism for air heating or cooling. Management storage bag (2) Lamination polymerization of capillary substances such as fibrous threads, strings, or woven fabrics on metal foil such as aluminum, which has the property of reflecting electromagnetic waves mainly in the infrared wavelength range, or films deposited with such metals. A foldable temperature-controlled storage bag that uses a composite sheet made of water to refrigerate items by utilizing the heat of vaporization of water.