JP2002142577A - Protection film for cultivating tobacco - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a protection film for cultivating a tobacco capable of protecting seedlings of the tobacco and keeping the seedlings warm and easily being removed when required to remove without being required to remove even when the tobacco grows. SOLUTION: This protection film for cultivating the tobacco is characterized by installing adhesive layers at the vicinity to both ends of a long plastic film in the cross direction and installing perforations approximately at the center thereof in the cross direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a protective film for tobacco cultivation.

[0002]

2. Description of the Related Art In general, when cultivating tobacco, a ridge is covered with a plastic film having a perforated hole to keep the temperature, and tobacco seedlings are planted at the position of the perforated hole. However, this method has a drawback in that the seedlings are exposed to the weather and frost, so that the seedlings do not grow as expected.

[0003] Various proposals have been made to eliminate these disadvantages. For example, JP-A-7-111834 describes that a cigarette is protected by further covering the plastic film with a protective film having a pressure-sensitive adhesive layer provided on a side end portion.

Further, the above publication discloses that a folded portion is provided in the width direction of the film so as not to hinder the growth of tobacco, and a side end of the film body where the adhesive layer is provided so that the film can be easily removed. It is described that a perforation is provided along the vicinity of the boundary between the portion and the film body.

However, when the above-mentioned protective film is used, it is necessary to remove the protective film at a stage where the tobacco has grown to a certain extent. Since it must be removed so as not to be damaged, there is a drawback that the work is difficult and takes a long time.

[0006]

SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks, it is an object of the present invention to provide a method for protecting and keeping tobacco seedlings, and there is no need to remove tobacco even if the tobacco becomes large, and it is easy to remove when removing. To provide a protective film that can be used.

[0007]

In the protective film for tobacco cultivation of the present invention, an adhesive layer is provided near both ends in the width direction of a long plastic film, and a perforation is provided in a substantially central portion in the width direction. It is characterized by having been done.

[0008]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a partially cutaway perspective view showing an example of the protective film for tobacco cultivation of the present invention. In the figure, reference numeral 1 denotes a protective film for tobacco cultivation, and an adhesive tape is provided at both ends in the width direction of the blue transparent long plastic film 11 so as to partially protrude outward from the film 11 and the adhesive layer is directed downward. Reference numerals 12 and 12 are attached.

The long plastic film 11 has a fold 13 formed in the width direction thereof, and has a perforation at a substantially central portion in the width direction. Further, a plurality of small holes 14, 14,...
Are formed.

The material of the plastic film 11 is as follows:
Plastics generally used as agricultural films may be used, and examples thereof include vinyl chloride resins, ethylene resins (particularly, high-density ethylene resins), propylene resins, and ethylene-vinyl acetate copolymers.

The plastic film 11 is preferably transparent to sunlight for growing tobacco, and is preferably transparent and translucent. The colors are colorless, red, blue,
Yellow or the like may be determined as appropriate, but blue is preferred because of its excellent heat retaining effect, dew prevention effect, and leaf scorch prevention effect.

The thickness of the plastic film 11 may be appropriately determined as needed, and is generally 5 to 40 μm.
And preferably 10 to 15 μm.

Incidentally, the plastic film 11 includes:
If necessary, an antifogging agent, an antioxidant, an ultraviolet absorber, a light stabilizer, an antiblocking agent, an antifog, an antirust agent, a plasticizer, an inorganic filler, and the like may be added.

As the pressure-sensitive adhesive tape 12, any conventionally known pressure-sensitive adhesive tape can be used. For example, a vinyl chloride resin film, an ethylene resin film, a propylene resin film,
An adhesive tape formed by laminating an adhesive such as a rubber-based adhesive, an acrylic-based adhesive, a silicone-based adhesive, or a urethane-based adhesive on one surface of a base film such as a polyester film.

In the above embodiment, the adhesive tape 12 is used.
The pressure-sensitive adhesive may be directly laminated on the lower surface of 1, or a double-sided pressure-sensitive adhesive tape may be attached.

FIG. 2 is an explanatory diagram showing a use state. FIG.
As shown in (a), a tobacco seedling 3 is planted on a ridge 2. Reference numeral 4 denotes a plastic film of a vinyl chloride resin, an ethylene resin, a propylene resin, or the like.
Are planted at the positions of the through holes 41 provided in the plastic film 4.

Reference numeral 1 denotes a tobacco cultivation protective film of the present invention, which is adhered to the plastic film 4 by pressing the adhesive tapes 12, 12 at both ends against the plastic film 4.

As described above, by covering the tobacco seedling 3 with the plastic film 4 and the tobacco cultivation protection film 1, it is possible to protect the tobacco seedling from damage caused by wind, rain and frost while keeping the temperature.

When the tobacco seedling 3 grows, the tobacco seedling 3 raises the folded portion 13 of the protective film 1 as shown in FIG. 2B, and a tunnel-shaped space is formed by the protective film 1.

In this case, the folded portion 1 of the protective film 1
3 is only lifted and does not inhibit the growth of the tobacco seedling 3, but if it grows further, the tobacco seedling 3
Of the protective film 1 collides with the protective film 1 and the growth is hindered, so that the protection film 1 is broken along the perforations 15 to form a through hole through which the tobacco seedling 3 extends so that the growth is not hindered. Or split into two.

The protective film 1 in which the through-hole is formed or divided into two may be covered with the ridge as it is if it is necessary to keep the temperature, or left and right if it is unnecessary. You can put it. Then, the unnecessary protective film 1 may be removed by peeling it off from the plastic film 4, or may be left as it is, tobacco is harvested, and then removed together with the plastic film 4.

[0022]

The protective film for tobacco cultivation of the present invention comprises:
As described above, the tobacco seedling can be easily protected and kept warm, and when the tobacco seedling becomes large, the tobacco seedling can be easily drilled or divided without damaging the tobacco seedling. In addition, it is possible to leave it around the tobacco as it is after the perforation or division, so that the tobacco can be protected and kept warm, and the unnecessary protection film can be easily removed and the workability is good.

When the folded portion is formed, it can be protected and kept warm until it grows to some extent. Furthermore, when it is colored blue, it is excellent in the heat retaining effect and the dew-proof effect, and the tobacco leaves do not burn.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing an example of the tobacco cultivation protective film of the present invention.

FIG. 2 is an explanatory view showing a use state of the protective film for tobacco cultivation of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Protective film for tobacco cultivation 11 Long plastic film 12 Adhesive tape 13 Folding part 15 Perforation

Claims (3)

[Claims] 1. A protective film for tobacco cultivation, wherein an adhesive layer is provided near both ends in the width direction of a long plastic film, and a perforation is provided substantially in the center in the width direction. 2. The protective film for tobacco cultivation according to claim 1, wherein a folded portion is formed in a width direction of the long plastic film. 3. The protective film for tobacco cultivation according to claim 1, wherein the long plastic film is blue and transparent.