JPS5937169A - Refrigerating vessel - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a frozen container, and more particularly to a container preferably used as a frozen natto container.

11. Frozen rice cakes that have been internally sprayed with liquid nitrogen do not interfere with the nutrition of the rice cakes, and prevent the occurrence of odor, bitter taste, and acrid odor. ! It can last for 1 hour and is especially good for cold resuscitation.

Expanded polystyrene containers, which are widely used for storing Ginkin natto, are excellent in terms of hygiene and have good production efficiency and economical efficiency. (-30 to -196°C) Process 1, especially freezing W1 using liquid 9 element. Fine powder is generated due to vibration and friction during packing, loading, and transportation.Frozen natto has a patented stickiness, and fragments of foamed polystyrene and fine powder can land on the natto in the container.
It is difficult to remove a few drops of foreign matter, and it is especially difficult to identify fine powder, so there is a risk that the foreign matter-containing natto may be stirred and eaten.

Therefore, it is appropriate from a hygienic point of view to use existing expanded polystyrene containers as containers for cold natto.

The present invention eliminates the defects of expanded polystyrene containers,
The purpose of this product is to provide a container that can be used as a 1-1 container for chilled and hard natto that is inexpensive and easy to work with.

The freezing container of the present invention is a foamed, polystyrene tin, cold m1 container laminated with a stretched myristyrene film on both sides or one side.

Foamed, poly, styrene &J' has a thickness of 1.3510.5 mm, and the stretched polystyrene film is preferable because of its thickness of about 0.03 mm, its strength, torsional properties, and thermal properties. OPS Styro film (simple (
1 person) is preferred. For laminated expanded polystyrene sheets, square cutting is often used instead of the conventional thermal cutting with nichrome wire.

A container having a skin layer on the inner surface of a foamed polystyrene container and a film laminated on the outer surface is particularly preferred. This v
This is because, as shown in +t<+, the skin layer collapses micro cavities (bubbles), which provide good tumor protection and efficacy after freezing.

The vision of the freezing container of the present invention: freezing processing edge compression, good rigidity against GH shock, low source of food as a freezing tray 1,
Can be generally used for ultra-low refrigeration. It is particularly preferred as a frozen natto container that uses liquid nitrogen spray for producing frozen natto of good quality. In the production of frozen natto, it can be used as a freezing container for stringy natto after fermentation. I can do it.

As shown in FIG. 2, the surface of the expanded polystyrene sheet has many minute irregularities. Ventilation is required during the fermentation stage of natto production, and the uneven surface of the expanded polystyrene can provide the ventilation required during fermentation, so it can be used as a frozen natto container: The inner surface of the container made of expanded polystyrene is laminated. Particularly preferred are containers that are not processed and are laminated only on the outer surface.

This container can be frozen because the convex-concave surface on the inner surface allows the cool air generated by the vaporization of liquid nitrogen to pass through when frozen, and also allows good heat to pass through when thawing.

The double-sided or single-sided laminated expanded polystyrene container of the present invention does not break or crack even when compressed under a heavy pressure of 100 kg. In addition, OPS with a thickness of approximately 0.03 qm
Styro film laminated thickness 1.35±0.
Using a 5-dragon expanded polystyrene container, the weight is 200f,
100? In a drop test of a frozen natto container manufactured at 196°C with 40 grams at a height of 10 m, there was almost no cracking or damage to the container, and the occasional crack occurred.
It was no more than a dragon.

The maximum vibration during truck or rail container transportation is about 2G, and there is no damage, cracks, or fine powder dissipation due to the vibration.

Application: Natto is produced using a conventional method using a foamed polystyrene container with a laminated surface.

The sorted soybeans were washed with water and placed in water for 8 to 12 hours in a soaking tank.
Soak for 15 to 30 minutes at 2 kg pressure in a steamer. After steaming, Bacillus natto was inoculated and filled into the foamed polystyrene container of the present invention, and heated to 40-42°C.
The fermented soybeans are fermented and aged for 8 to 15 hours in a heated fermentation chamber to form natto, which is then cooled. Furthermore, after keeping it in a refrigerator at 1 to 2°C for several days, it is frozen by spraying liquid nitrogen using a -196°C liquid nitrogen quick freezing device. Freezing is completed in 15 to 30 minutes, and the frozen natto is packaged using an automatic packaging machine. The obtained frozen natto can be stored for a long time while retaining the original flavor and ingredients of natto, and the container can be kept in good condition without being damaged or cracked during packaging, loading, and transportation. It also allows for better heat removal during thawing.

[Brief explanation of the drawing]

The mirror photograph and FIG. 2 are enlarged cross-sectional views. Figure 1 side external surface Polygonum -4'

Claims (1)

[Scope of Claims] 1) A frozen container made of expanded polystyrene in which a stretched polynutyrene film is laminated on the double-sided side I01. 2) Expanded polystyrene sheet KFL with a press size of 1.35±0.5 mm is laminated with a stretched polystyrene film with a thickness of about 0.03 mm, and a moon-shaped cut is used for forming. container. 3) The container according to claim 2, wherein an expanded polystyrene sheet having a skin layer on the inside is laminated with an iTn K stretched polystyrene film on the outside.