JPH0210915Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Field of industrial application) This invention relates to paper for growing enoki mushrooms.
The present invention relates to a growth paper that enables uniform growth of enoki mushrooms and is suitable for work.

(Conventional technology) Enoki mushrooms are sterilized using sawdust, aseptically inoculated, and
The mushrooms are harvested after undergoing the steps of holding at 7-8°C, culturing, sprouting, suppressing mushroom growth, and sprouting.

In this process, from storage to commercialization, it is necessary to maintain humidity at 70 to 80%, so conventionally,
The humidity was maintained by providing an air-conditioned room or using sprinklers.

On the other hand, for enoki mushrooms, as shown in Fig. 1, a fan-shaped growth paper 2 made of plastic film or wax-moisture paper is wrapped around the mouth of a wide-mouth bottle 1 in a funnel shape to prevent the enoki mushrooms from bending. Good quality enoki mushrooms were being harvested.

However, since none of these growth papers has a humidity control function, the above-mentioned humidity control work had to be performed during the process.

In addition, as a means to prevent "water mushrooms" that occur when growing paper made of plastic film or wax-impregnated paper is used as described above, for example, as shown in Japanese Patent Publication No. 56-50523, moisture-absorbing paper is attached to the lid. It has been proposed to use a growing paper.

Although the use of growth paper with the above structure has a certain effect, using only a structure using moisture-absorbing paper allows a large amount of moisture to pass through, resulting in a dry state unless the humidity of the atmosphere is properly controlled. Water had to be supplied through sprinklers, etc. When water is supplied in this way and the moisture becomes excessive, the growing paper made of moisture-absorbing paper cannot absorb enough water, and the water absorbed by the growing paper comes into direct contact with the enoki mushrooms, causing "water mushrooms." There were times when I ended up doing something wrong.
Furthermore, if the growing paper has a structure in which a paraffin-coated part is provided below the moisture-absorbing paper, the enoki mushrooms will come into contact with water droplets generated on the paraffin-coated part at the early stage of growth, which is not preferable.

Furthermore, since it is made of moisture-absorbing paper and paraffin paper, it is weak and unsuitable for winding it into the mouth of a bottle using a machine.

Therefore, as a method for growing enoki mushrooms, we wrapped growth paper with a humidity control function around the mouth of a wide-mouthed bottle.
Japanese Patent Application No. 58-23382 (Japanese Patent Publication No. 1-8973), Japanese Patent Application No. 58-83225 (Japanese Unexamined Patent Publication No. 59-210833), and Japanese Patent Application No. 132371-1971 (Patent Application No. 1-35611) ). All of the growth papers described in these applications prevent the harmful effects of water on enoki mushrooms by gradually absorbing the water that enoki mushrooms have, and once the water has been absorbed by enoki mushrooms, it evaporates as water vapor. It had a humidity regulating function and was suitable for growing enoki mushrooms.

However, among these structures, those using plastic film tend to warp on the opposite side of the opening, which is not suitable for operation.

Further, those having a structure not including a plastic film were not preferred because they lacked rigidity and did not have water vapor barrier properties.

(Problems to be solved by the invention) Therefore, the present invention has developed a growing paper that has a humidity control function and is free from the risk of water mushrooms, has a firmness, does not warp, and has excellent machine suitability. The purpose is to provide

(Means for Solving the Problems) In order to achieve this object, the present invention provides a vapor gas permeable layer made of paper, nonwoven fabric, etc., a water absorbent resin layer, a vapor barrier layer made of plastic film, and a vapor barrier layer made of the same material as the gas permeable layer. To provide growing paper made by cutting a laminated material sequentially provided with exterior materials consisting of the following into a substantially fan shape.

The present invention will be described in detail below with reference to the drawings.

For example, as shown in FIG.
0 is a straight line, left and right sides 11, 11' are circular arc-shaped upper sides 12 and center part 13 are circular arcs, left and right sides 14, 1
4' has a linear lower side 15, and has a shape that widens from the lower side 15 toward the upper side 12, and has an upper left corner 1.
6 extends perpendicularly from the middle of the left side, the upper part has a cutout corner, and the upper right corner 18 extends vertically upward from the middle of the right side 19 to the upper side.

As shown in FIG. 4, this growth paper 20 has a water-absorbing resin layer 23 between a synthetic resin vapor barrier layer 22 and a vapor gas permeable layer 21 such as paper or nonwoven fabric.
Further, on the opposite side of the vapor barrier layer 22, an exterior material 24 made of the same material as the vapor gas permeable layer 21 is laminated.

First, the shape of the growth paper 20 is as shown in FIG. Any shape that is a combination of straight lines may be used.

In addition, the water-absorbing resin layer 23 is a water-absorbing resin that absorbs water well, increases its volume, maintains a gel-like or solid state, and evaporates in the form of water vapor without releasing water even under slight pressure. It consists of a single substance or a mixture of it and porous inorganic powder.

Specifically, water-absorbing resins are made by partially crosslinking water-soluble resins to make them water-insoluble, and include starch-sodium acrylate graft polymers, starch-acrylonitrile graft polymer hydrolysates, and partially cross-linked starches. -Poly(meth)acrylic acid copolymers, partially crosslinked starch-polymethyl methacrylate hydrolysates, etc. are suitable.

The porous inorganic powder to be mixed with the resin is an inorganic powder having special shapes such as pores or petals, and specific examples thereof include zeolite, perlatato, and calcium silicate.

The above-mentioned water-absorbing and inorganic powder has a particle size of 35 mesh or less, preferably 100 mesh or less, and is preferably a nearly spherical resin, such as ethylene-vinyl acetate copolymer, chlorinated polypropylene, urethane resin, or linear thermoplastic polyester resin. A resin layer is formed by applying a resin that exhibits good adhesion even when the water-absorbing resin swells as a binder.

On the other hand, the vapor barrier layer 22 is a moisture-proof film such as a polyester film, a polystyrene film, or a polypropylene film, and the vapor gas permeable layer 21 and the exterior material 24 are made of paper, nonwoven fabric, or
Materials with water absorption and water retention ability such as sponges can be used, as well as films such as cellophane, nylon, and polyvinyl alcohol, which become highly moisture permeable once they become hygroscopic. It is preferable that

(Effects) The growth paper of the present invention has the above structure, so
If the structure has a vapor barrier layer made of plastic film, the atmosphere surrounded by the growth paper will be in a moisture-rich state suitable for growth, but since the structure has a water-absorbing resin layer 23, water will be reliably absorbed. ,
Even if the enoki mushrooms come into contact with the growing paper, the water absorbed by the growing paper does not come into contact with it in a liquid state, so the influence of water can be eliminated, and enoki mushrooms with less so-called water mushrooms can be obtained. In addition, since both sides of the growth paper are made of the same material, there is no warping, making it easier to wrap the growth paper around the mouth of the bottle.The structure also includes a vapor barrier layer made of plastic film, so it is strong and allows the growth paper to be attached. Automatic installation using a device is now possible. Furthermore, according to the growing paper shown in FIG. 3, by having a shape having straight portions on all four sides, it becomes easier to align and feed the growing paper to the feeding section of the mounting machine.

Examples using the growth paper of the present invention will be described below.

(Example) Unsized processed base paper (60g/m ² )/urethane adhesive/biaxially oriented polypropylene film (20μ)/crosslinked starch-polymethyl methacrylate hydrolyzate (7.0g/m ² )/urethane adhesive The laminated material (lattice-like)/unsized processed base paper (60 g/m ² ) is made into a grown paper with the shape shown in Figure 3, with a bottom side of about 210 mm, a top side of about 300 mm, and an interval between the top and bottom sides of about 120 mm. When the enoki mushrooms have grown by 2 to 3 mm, roll them into a cultivation bottle with a capacity of about 500 ml, in which the enoki mushrooms have been inoculated, with the water-absorbing resin layer facing inside as shown in Figure 1. It was fastened with a clasp.

The cultivation bottle with the growth paper fastened to the mouth like this is 6~
When stored in a room at 8° C. and 70-80% humidity, all of them grew uniformly to about 100 mm on the 8th day and weighed about 120-150 g.

Compared to wax-impregnated paper and plastic film, which are conventionally used as growth paper, it takes about 2 days to grow to the same size, and of course there is less coloring of enoki mushrooms and less water mushrooms. There is no warpage, and it is now possible to use an automatic mounting machine.

In addition, it has become easier to arrange the growth paper to feed it to the adhesive machine.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of a cultivation bottle, Fig. 2 is a plan view showing the shape of a conventionally used growing paper, and Fig. 3 is a plan view and a diagram showing an example of the shape of the growing paper of the present invention. FIG. 4 is a sectional view showing the structure of the growing paper of the present invention. 10, 13...Central part, 11,14...Left part,
11', 14'...Right side, 12...Top side, 15...
Lower side, 16... Upper left corner, 17... Left side, 18
... Upper right corner, 19 ... Right side, 20 ... Growing paper, 21 ... Steam gas permeable layer, 22 ... Steam blocking layer, 23 ... Water-absorbing resin layer, 24 ... Exterior material.

Claims (1)

[Scope of utility model registration request] A growth made by cutting a laminated material into approximately fan shapes, which are sequentially provided with a vapor gas permeable layer such as paper or nonwoven fabric, a water absorbent resin layer, a vapor barrier layer made of plastic film, and an outer layer material made of the same material as the vapor gas permeable layer. paper.