Nihon Tensaiseito Kabushiki Kaisha

Nippon Beet Sugar Mfg., Co., Ltd.

Kuraray Co., Ltd.

Oji Paper Co., Ltd.

Masashi Tanimura

Hidekazu Terasawa

Sumio Ito

Ryuzo Tsuru

Michinori Sakaki

Tetsuo Nanbu

Yasunobu Kawamoto

Keizo Yamazaki

Mitsuru Kawase

Sohei Nakamura

Shosuke Higashimori

Hisashi Matsumoto

Hiroshi Matsuki

Takayuki Nagano

Mamoru Sunaga

A continuous assemblage of pots for raising and transplanting seedlings and a method of manufacturing the assemblage is provided, in which it is possible to extend the length of a link piece without folding an extension portion or arranging a slit, thereby making it possible to handle enlargement of the interval between the planted seedlings stably and reliably. A link piece is formed by folding back both ends of a strip-shaped thin film in the length direction, such that approximately one-fourth of the length of the thin film is folded back onto the same face of the thin film at each end, then attaching the folded-back portions to the same face of the thin film with a water-soluble adhesive. The link pieces are disposed in two rows in a staggered arrangement in which the folded-back portions are oriented such that they face the folded-back portions of the opposing link pieces. Continuous pieces are formed by using a non-water-soluble adhesive to attach both ends in the length direction of each link piece to the opposing link pieces. Individual pots are formed between the opposing link pieces. Therefore, it is possible to extend the length of the link piece without folding an extension portion or arranging a slit, as in the conventional continuous assemblage of pots, thereby making it possible to handle enlargement of the interval between the planted seedlings stably and reliably.

Continuous assemblage of pots for raising and transplanting seedlings and method of manufacturing the same

A continuous assemblage of pots for raising and transplanting seedlings and a method of manufacturing the assemblage is provided, in which it is possible to extend the length of a link piece without folding an extension portion or arranging a slit, thereby making it possible to handle enlargement of the interval between the planted seedlings stably and reliably. A link pieceis formed by folding back both ends of a strip-shaped thin film in the length direction, such that approximately one-fourth of the length of the thin film is folded back onto the same face of the in film at each end, then attaching the folded-back portions to the same face of the thin film with a water-soluble adhesive. The link piecesare disposed in two rows in a staggered arrangement in which the folded-back portionsare oriented such that they face the folded-back portionsof the opposing link pieces. Continuous piecesare formed by using a non-water-soluble adhesive to attach both ends in the length direction of each link pieceto the opposing link pieces. Individual potsare formed between the opposing link pieces. Therefore, it is possible to extend the length of the link piecewithout folding an extension portion or arranging a slit, as in the conventional continuous assemblage of pots, thereby making it possible to handle enlargement of the interval between the planted seedlings stably and reliably.

Continuously assembled pots, configured in square or hexagonal cylinders for raising and transplanting seedlings are formed by developing non-adhered portions of a band, which is formed by adhering two sheets of film such as paper or the like. The portion of the band corresponding to a connector portion which connects the pots is folded at a given length, and has an elongated or unfolded length larger than the width of one side of a pot. The folded portion of the band is adhered to itself and to a pot with a water soluble paste, so that the continuously assembled pots are separated by water during raising and pulled out continuously from one end thereof in a line.

Continuously assembled pots for raising and transplanting seedlings

Decay-resistant paper suitable for the manufacture of a pot for raising and transplanting seedling is the one partly containing decayable portions, which is prepared by heating paper made of a natural fiber, or a fiber blend composed of a natural fiber and a synthetic fiber, and impregnated with a compound capable of crosslinking the paper cellulose, at a temperature causing the reaction of antidecay treatment and at a temperature causing no such reaction in different portions. Such decay-resistant paper partly containing decayable portions can be easily prepared by bringing the above-mentioned paper impregnated with a compound capable of crosslinking the paper cellulose into contact in a single step with a heating apparatus comprising a heating part of a temperature causing the reaction of antidecay treatment and a heating part of a temperature causing no such reaction. As such a heating apparatus, may be used the one in which a rotary roll heater or a press-type heating plate is coated with a jacket having openings which is made of a material such as iron, copper and aluminum.

Decay-resistant paper for the manufacture of a pot for raising and

Herein disclosed is a band for forming a seedling raising bottomed pot aggregate, in which multiple rows of a plurality of pots are aggregated. The bottoms of the pots are formed by making specific planar structures in a material paper having a constant width and by adhering, combining and cutting the paper. The pot aggregate can be easily manufactured by expanding the band. The bottoms are extended from the lower sides of the side walls of the cubes and are folded inward at a right angle from the adjoining extensions. These adjoining extensions are adhered on one of the diagonals of the bottoms, and the extensions on the other diagonal are overlapped.

Pot aggregate for raising seedlings and process for manufacturing the

An assembly of pots for raising and transplantation of seedlings, the assembly made of paper or a paper-like thin film, in which the side wall of each pot is provided, by means of a cut, with tongue-like pieces which can be easily lifted-up toward the outside of the pot by the pressure of seedling roots while in the soil after transplantation, therefore, making the extension of roots from the tongue-like portion both vigorous and untangled with respect to adjacent potted seedlings.

Assembly of pots for raising and transplantation

The invention relates to a multiple pot comprising individual pots interconnected by connector portions so as to be capable of being pulled out. The multiple pot is used to raise and transplant seedlings of plants. The invention also relates to a method of fabricating the pot. The pot is designed especially to promote growth of roots across the side walls of the individual pots after transplantation. Also, the resistance encountered when the multiple pot is unfolded is reduced. Further, the individual pots are uniform in size. These feature arise from the facts that the connector portions are formed by applying a waterproof paste discontinuously and that a water-soluble paste is not applied around the edges of the individual pots created when the multiple pot is unfolded. Hence, a coating of the paste is formed in none of these portions. The multiple pot is fabricated by continuously carrying out three steps. At the first step, the waterproof paste is applied in a given pattern while continuously pulling out two continuous thin films. At the second step, folds are formed in the resulting belt, and the belt is folded in a zigzag fashion. This state is maintained. At the third step, the water-soluble paste is applied to the front side and the rear side of the belt alternately up to each fold. Then, the belt is folded, and pressure is applied to it to stick together the folded belts.

Multiple pot for raising and transplanting seedlings and method of

Disclosed herein is agricultural paper to be made into pots for raising seedlings. It is made up of a first layer made chiefly of natural pulp and a second layer made of synthetic fibers having a basis weight of 3-15 g/m.sup.2, said first layer and second layer being joined to each other by the wet papermaking process which intertwines the fibers of the two layers at their joining interface. The second layer is formed by fusion bonding composite synthetic fibers of polymers having different plasticizing temperatures.

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Obihiro, Japan

Masashi Tanimura