JPH078457Y2 - Packaging container - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a packaging container such as a tray, and more particularly to a tray-shaped packaging container for storing and using fresh food for display and sale.

<Problems to be Solved by Conventional Techniques and Inventions> Conventionally, packaging containers formed of thermoplastic resin sheets such as expanded polystyrene sheets have been used. Particularly, relatively shallow tray-shaped containers are used for various fresh foods. It is widely used as a simple packaging container for display and sale of items such as.

However, if the tray-like container stores meat juice, water, or seafood, such as meat, fish, or seafood, the juice collects in the tray, and when the tray is tilted or vibrated, the meat juice or the like gets out of the tray. It was spilled easily, and had the drawback that it would stain the surrounding area or adhere to other objects when taking it out after purchase.

Therefore, it is conceivable to lay or stick a water-absorbent sheet such as a non-woven fabric on the inner surface of the tray, but it is very troublesome to stick the water-absorbent sheet on the entire curved inner surface of the tray without gaps and the manufacturing cost. In addition to the disadvantage that it is expensive, since the inner sheet is water-absorbent, the diffusion of meat juice etc. can be seen quickly and it becomes rather unstructured, so on the peripheral side of the container body as in Japanese Utility Model Publication No. 58-16529. The water-absorbent sheet had to be strongly pressure-bonded to provide an expansion preventing portion against permeation of water absorption.

In this case as well, there is a problem in that it takes time to crimp the peripheral side portion.

Therefore, in order to solve the above problems, an object of the present invention is to provide a device capable of preventing the diffusion of meat juice or the like into the inner sheet.

<Means for Solving the Problems> In order to achieve the above object, the main body container according to the present invention has a structure in which the entire inner surface of the container main body formed of a thermoplastic resin sheet is covered with an inner sheet. The main body is provided with a partial projecting portion on the bottom surface, the partial projecting portion and the inner sheet are joined, and a space is provided between the inner sheet and the bottom surface, and the inner sheet is a nonwoven fabric having a large number of through holes. It is characterized in that it is formed and the outer surface of the nonwoven fabric is subjected to a water repellent treatment.

<Operation> In the packaging container of the present invention having the above-described structure, meat juice or the like tries to permeate into the inner sheet covering the entire inner surface of the container body, but the inner sheet is made of a nonwoven fabric sheet having a large number of through holes, and the outer surface is As it is water repellent, it can be dropped into the space between the inner sheet and the bottom through a large number of through holes without leaving the surface of the nonwoven fabric sticky and not sticking to the surface of the inner sheet as much as possible. It can be maintained in good condition without stickiness.

<Example> Next, an example of the present invention will be described below with reference to the drawings.

(10) is a thermoplastic resin sheet, for example, a packaging container body formed of expanded polystyrene sheet, high impact polystyrene sheet, etc., (20) is an inner sheet that covers the entire inner surface of the container body (10), and has a large number of through holes ( 21), and the outer surface of the non-woven fabric is treated to be water-repellent to form a water-repellent portion (22) (see in particular FIG. 3).

(11) is a bottom surface of the container body (10), (12) is a partial projection portion of a lattice shape or the like formed on the bottom surface (11), and the inner sheet (20) is a partial projection portion (12). Are joined together,
A space (30) is formed between the inner sheet (20) and the bottom surface (11). (13) shows the peripheral side portion, which is joined to the inner sheet (20).

As the water repellent for the above water repellent treatment, casein, soy protein, cellulose, paraffin, silicone, and other synthetic resins (nylon, polyethylene, polypropylene) that are not harmful in use as food are not harmful in use. Also, one or several kinds of latex are selected and used. Also, as the fibers of the non-woven fabric,
Although various types can be used, those in which polyethylene fibers are coated around polyester or polypropylene fibers are preferable.

<Effects of the Invention> In the packaging container according to the above-described invention, even when a piece of meat or the like is stored in a tray-shaped packaging container and used, the inner sheet (20) that covers the inner surface of the container body has a large number of through holes. Since it is formed as a water-repellent part (22) with a water-repellent treatment on the outer surface of a non-woven fabric having holes, meat juice etc. from the through hole (21) to the inner sheet (20) and the container body with respect to the inner sheet (20). (Ten)
It can be dropped into the space (30) between it and the bottom surface (11), and stickiness on the surface can be eliminated. Reverse osmosis of meat juice or the like from the space (30) to the inner sheet (20) can also be prevented.

Therefore, even when the peripheral portion of the container body is gripped, the container body can be gripped without stickiness, which is very easy to handle.

Further, the cushioning effect of the inner sheet can be exerted as in the conventional case, and the protection property for the stored article can be enhanced.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a perspective view, FIG. 2 is a sectional view, and FIG. 3 is an enlarged sectional view of a nonwoven fabric portion. (10) ... Container main body, (11) ... bottom surface, (12) ... partial protruding portion, (20) ... inner sheet, (21) ... through hole, (22) ... water repellent portion, (30) ... space.

Claims (1)

[Scope of utility model registration request] 1. An inner sheet covers the entire inner surface of a container body formed of a thermoplastic resin sheet, and the container body is provided with a partial projecting portion on the bottom surface, and the partial projecting portion and the inner sheet are joined together. And a space is provided between the inner sheet and the bottom surface, the inner sheet is formed of a nonwoven fabric having a large number of through holes, and the outer surface of the nonwoven fabric is subjected to a water repellent treatment. container.