JPH0327401Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a packkin used in a container for cultivating mushrooms such as shiitake mushrooms, enoki mushrooms, nameko mushrooms, and shimeji mushrooms.

Conventional technology Conventionally, in mushroom cultivation, a container body made of plastic such as polyethylene or polypropylene is filled with a culture medium consisting of sawdust, rice bran, water, etc.
The required inoculum is planted in this culture medium, and a plastic lid with ventilation holes is attached to the container body for cultivation.At this time, as a seal placed between the container body and the lid, Those made of open-celled polyurethane foam are often used.

Problems that the invention aims to solve The above-mentioned packaging made of polyurethane foam is intended to allow air to circulate inside the container body and prevent the intrusion of germs. If this happens, the following problems will occur.

The mycelia transplanted into the culture medium dig into the polyurethane foam, causing clogging and blocking the voids in the polyurethane foam, resulting in a significant decrease in air permeability and oxygen deficiency, making it impossible to create a good culture medium.

On the other hand, polyurethane foam packsins have poor moisture retention properties, so it is difficult to maintain the humidity inside the container at an appropriate level for mushroom cultivation.Especially after a considerable period of time has passed after the start of cultivation, the culture medium dries out and the inside of the container becomes extremely low. Humidity may cause problems in cultivation.

Since the cavity is relatively large, it is not possible to completely prevent the intrusion of various germs, which may cause them to enter the container.

The present invention was developed in view of the above circumstances, and it is difficult for mycelium to adhere to it, so it does not dig into the packing, has excellent moisture retention, and can reliably prevent the invasion of various bacteria. The purpose of the present invention is to provide a packing for mushroom culture containers.

Means and action for solving the problem That is, as a result of intensive studies to achieve the above object, the present inventor unexpectedly found that spunbond, etc. formed from high-density polyethylene fibers has air permeability. Spunbond olefin is difficult for fungi to adhere to, and therefore, by laminating this spunbond olefin on polyurethane foam, it is possible to prevent mycelia from digging into the polyurethane foam. It was discovered that the moisture retention and germ-blocking effect were improved when the layers were laminated, and this led to the creation of the present invention.

Therefore, the present invention uses open-cell polyurethane in the packing that is placed between the container body and the lid when attaching a lid with vents to a container body filled with a culture medium into which mushroom fungi have been transplanted. A sheet body made of breathable spunbonded olefin is laminated on one or both sides of a packing body formed of foam.

Hereinafter, the present invention will be explained in more detail with reference to the drawings.

The drawing shows a packing for a mushroom culture container according to an embodiment of the present invention. In the drawing, 1 is a packing main body made of open-cell polyurethane foam, and 2 is a span laminated on one side of the packing main body 1. It is a sheet body made of bonded olefin.

In the present invention, there are no particular limitations on the type or properties of the polyurethane foam constituting the packing body, and it is possible to use soft polyurethane foam or semi-rigid polyurethane foam with appropriate properties.

Furthermore, there are no particular restrictions on the shape or size of the packing body, and it can be formed into any appropriate shape or size, such as a circular plate or a square plate, depending on the shape of the container body or lid, but the thickness of the packing body is normal. It is suitable to set it to about 1-10 mm.

Although there is no limitation on the type of spunbond olefin constituting the sheet, it is particularly preferable to use spunbond formed from high-density polyethylene fibers. In addition, it is recommended to use spunbond olefin with a thickness of 0.05 to 0.25 mm, a Gurley air permeability of 20 to 30 seconds, and a moisture permeability of 600 to 700 g/m ² /24 hours to prevent seed bacteria from adhering and improve moisture retention. It is preferable in terms of effectiveness and effect of preventing invasion of germs. In this case, the spunbond olefin that can be suitably used is Tyvek (trade name) manufactured by Dupont.
1073B (weight 74.6 g/m ² , thickness 0.2 mm, Gurley air permeability 23 seconds, moisture permeability 641 g/m ² /24 hours).

Note that there are no restrictions on the manufacturing method of the packing of the present invention; for example, it is possible to adhere a sheet body to a packing body formed into an appropriate shape with an adhesive or the like; It is preferable to form the layers into an appropriate shape after laminating them using the above method.

The packaging material of the present invention is placed between the container body and the lid when the culture medium of the container body filled with the culture medium is inoculated with inoculum and the lid having ventilation holes is attached to the container body. However, when the sheet body is laminated on only one side of the packing body,
This sheet body is placed facing the culture medium.

In the above embodiment, the sheet body is laminated on one side of the packing body, but it may be laminated on both sides, and other configurations may be modified in various ways without departing from the gist of the present invention.

Effects of the Invention As explained above, the packaging for mushroom culture containers according to the present invention has the following effects: It has the following effects.

It is difficult for mycelia to adhere to the spunbond olefin, which prevents mycelia from attaching to the packing and mushrooms from growing from the packing, improving yields and reducing the air permeability of the packing, which kills the mycelium. Never.

Since it has an appropriate moisture retention property, it is easy to keep the inside of the container at a humidity suitable for growing mushrooms, and the mushrooms can be grown well. In particular, it is possible to reliably prevent the culture medium from drying out and the inside of the container becoming extremely low humidity after a considerable period of time has passed after the start of culture.

Since it is difficult for bacteria to pass through spunbond olefin, it is possible to suppress the invasion of bacteria into the container as much as possible.

[Brief explanation of the drawing]

The drawing is a sectional view showing an embodiment of the present invention. 1...Patsukin body, 2...Sheet body.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. When attaching a lid with vents to a container body filled with a culture medium into which mushroom fungi have been transplanted, a gasket placed between the container body and the lid has an open-cell structure. 1. A packing for a mushroom culture container, characterized in that a sheet made of breathable spunbonded olefin is laminated on one or both sides of a packing main body formed of polyurethane foam. 2. The packaging for a mushroom culture container according to claim 1, wherein the spunbond olefin is spunbond formed from high-density polyethylene fibers.