JPH09121702A - Base substrate for growing algae and its production - Google Patents
Base substrate for growing algae and its productionInfo
- Publication number
- JPH09121702A JPH09121702A JP30812195A JP30812195A JPH09121702A JP H09121702 A JPH09121702 A JP H09121702A JP 30812195 A JP30812195 A JP 30812195A JP 30812195 A JP30812195 A JP 30812195A JP H09121702 A JPH09121702 A JP H09121702A
- Authority
- JP
- Japan
- Prior art keywords
- mat
- base material
- opening
- continuous filaments
- seaweed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 241000195493 Cryptophyta Species 0.000 title abstract description 5
- 239000000758 substrate Substances 0.000 title abstract 3
- 239000000463 material Substances 0.000 claims abstract description 45
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 14
- 230000005484 gravity Effects 0.000 claims abstract description 13
- 241001474374 Blennius Species 0.000 claims description 54
- 238000000465 moulding Methods 0.000 claims description 25
- 229920001059 synthetic polymer Polymers 0.000 claims description 11
- 230000001788 irregular Effects 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 abstract description 5
- 238000009987 spinning Methods 0.000 abstract description 5
- 238000010030 laminating Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- -1 polypropylene Polymers 0.000 description 8
- 239000004576 sand Substances 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000011435 rock Substances 0.000 description 6
- 241001123263 Zostera Species 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 4
- 230000010354 integration Effects 0.000 description 4
- 229920000098 polyolefin Polymers 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 241000251468 Actinopterygii Species 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 241000257465 Echinoidea Species 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 235000015170 shellfish Nutrition 0.000 description 2
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 208000012868 Overgrowth Diseases 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Cultivation Of Seaweed (AREA)
- Laminated Bodies (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【発明の属する技術分野】本発明は、河川や海中に生息
する有用海藻類が生育・繁茂するのに適した海藻生育基
盤材に関するものである。TECHNICAL FIELD The present invention relates to a seaweed growth base material suitable for growing and growing useful seaweeds that live in rivers and the sea.
【０００２】[0002]
【従来の技術】日本の沿岸域の岩礁においては、多種類
の海藻が繁茂している。この海藻類の多くは、人の食用
として、或いは魚類の生育・育生に欠かせないものとし
て非常に有用なものである。2. Description of the Related Art Many types of seaweed are growing on reefs in coastal areas of Japan. Many of these seaweeds are very useful as foods for humans or as indispensable for the growth and breeding of fish.
【０００３】しかし、近年、沿岸地域の開発に伴い、海
藻類の生育・繁茂に適した岩礁が減少しつつあり、問題
となっている。また、岩礁のある地域でも、岩が石灰質
の藻で覆われる、或いはウニやアワビ等の食害生物によ
り海藻類が食べ尽くされること等が原因となって、海藻
場から海藻類がなくなる、いわゆる「磯やけ」が拡大し
つつあり、深刻な問題となっている。However, in recent years, along with the development of coastal areas, the number of reefs suitable for the growth and overgrowth of seaweeds has been decreasing, which has become a problem. Even in areas with reefs, the seaweeds disappear from the seaweed beds due to the fact that the rocks are covered with calcareous algae, or seaweeds are eaten up by carnivorous organisms such as sea urchins and abalone. "Isoyake" is expanding, and it is a serious problem.
【０００４】そこで、これらの問題を解決すべく、有用
な海藻類が生育するように石灰質の藻で覆われた岩礁を
破壊して新しい岩肌を露呈させたり、新たな岩石やコン
クリートブロックを投入することが行われ、また、ウニ
やアワビを除去する、或いは海藻場に近づけないように
するといった対策もとられている。Therefore, in order to solve these problems, a reef covered with calcareous algae is destroyed so that useful seaweeds can grow to expose a new rock surface, or new rocks or concrete blocks are added. In addition, measures are being taken to remove sea urchins and abalone, or to keep them away from seaweed beds.
【０００５】[0005]
【発明が解決しようとする課題】しかし、これらの対策
はいずれも多くの労働力、高価な装置が必要とされ、ま
た、いずれの対策をとった場合でも海藻場の回復には長
い期間を要する。本発明は、かかる実情に鑑みてなされ
たものであり、簡便に海藻生育の場を設置することので
きる海藻生育基盤材を提供することを目的とするもので
ある。However, all of these measures require a large amount of labor and expensive equipment, and even if any of these measures are taken, it takes a long time to recover the seaweed beds. . The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a seaweed growth base material capable of easily setting a seaweed growth place.
【０００６】[0006]
【課題を解決するための手段】前記課題を解決するた
め、本発明の海藻生育基盤材は、熱可塑性重合体からな
る多数の連続線条がループをなして相互に交差し、かつ
この多数の連続線条が各交差点において接着されてなる
立体網状のマット状構造物の一面に、重錘となる開口成
型物が不可分に一体化された複合体であって、比重が
２．５〜５．５であることを特徴とするものである。In order to solve the above-mentioned problems, the seaweed growth base material of the present invention comprises a large number of continuous filaments made of a thermoplastic polymer that form a loop and intersect each other, and It is a composite body in which an open-molded product serving as a weight is inseparably integrated with one surface of a three-dimensional net-like mat-like structure in which continuous filaments are bonded at each intersection, and has a specific gravity of 2.5 to 5. It is characterized by being 5.
【０００７】前記海藻生育基盤材においては、前記立体
網状のマット状構造物が、直径０．１〜２．０mmの多数
の合成重合体連続線条の各々が不規則なループをなして
相互に交差し、かつ厚み方向に屈曲して一方から他方に
延び、この多数の合成重合体連続線条がそれぞれの交差
点において相互に接着され、表面には多数の畝状の山部
と該山部間において窪んだ溝状の谷部が形成され、該山
部および谷部は裏面において谷部および山部を形成して
なる空隙率５０〜９９％、厚み１０〜１００mmであるマ
ット状構造物であることが望ましい。In the seaweed growth base material, the three-dimensional reticulated mat-like structure is formed by a plurality of synthetic polymer continuous filaments each having a diameter of 0.1 to 2.0 mm and forming an irregular loop. Crossing and bending in the thickness direction and extending from one to the other, the large number of synthetic polymer continuous filaments are adhered to each other at their respective intersections, and the surface has a large number of ridge-shaped ridges and gaps between the ridges. Is a mat-like structure having a porosity of 50 to 99% and a thickness of 10 to 100 mm, which is formed by forming a grooved valley portion in which the valley portion and the valley portion are formed on the back surface. Is desirable.
【０００８】また、前記海藻生育基盤材においては、重
錘となる開口成型物が、比重３以上の素材からなり、格
子間に形成される目の大きさが一つあたり４〜２００cm
2 であり、１ｍ2 あたりの重さが５〜１００kgである格
子状成型物であることが望ましい。[0008] In the seaweed growth base material, the opening molding that serves as a weight is made of a material having a specific gravity of 3 or more, and the size of the eyes formed between the lattices is 4 to 200 cm per one.
It is 2 and the weight per 1 m 2 is preferably 5 to 100 kg, which is a lattice-shaped molded product.
【０００９】また、前記海藻生育基盤材においては、マ
ット上構造物を構成する連続線条ではない熱可塑性重合
体からなる連続線条が、開口成型物の開口部以外の部分
を周回して開口成型物と熱接着しており、かつ開口部に
おいては垂下してマット状構造物を構成する連続線条と
熱接着していることにより、マット状構造物と開口成型
物が不可分に一体化されていることが望ましい。Further, in the seaweed growth base material, continuous filaments made of a thermoplastic polymer, which are not continuous filaments constituting the on-mat structure, circulate around the portions other than the openings of the opening molding and open. The mat-like structure and the opening molding are inseparably integrated because they are heat-bonded to the molding and are thermally bonded to the continuous filaments that hang down at the opening to form the mat-shaped structure. Is desirable.
【００１０】本発明の海藻生育基盤材は、熱可塑性重合
体からなる多数の連続線条がループをなして相互に交差
し、かつこの多数の連続線条が各交差点において接着さ
れてなる立体網状のマット状構造物の一面に、重錘とな
る開口成型物を積層し、開口成型物の上方から熱可塑性
重合体を連続線条として紡出して落下させ、この連続線
条が固化しない間にニップロールで押圧することにより
マット状構造物と開口成型物を不可分に一体化させるこ
とによって製造することができる。The seaweed growth base material of the present invention is a three-dimensional net-like structure in which a large number of continuous filaments made of a thermoplastic polymer cross each other in a loop and the plurality of continuous filaments are bonded at each intersection. On one surface of the mat-shaped structure, the opening molding that serves as a weight is laminated, and the thermoplastic polymer is spun from above the opening molding as a continuous filament and dropped, and while the continuous filament does not solidify. It can be manufactured by inseparably integrating the mat-like structure and the molded opening by pressing with a nip roll.
【００１１】また、前記製造方法においては、前記立体
網状のマット状構造物が、直径０．１〜２．０mmの多数
の合成重合体連続線条の各々が不規則なループをなして
相互に交差し、かつ厚み方向に屈曲して一方から他方に
延び、この多数の合成重合体連続線条がそれぞれの交差
点において相互に接着され、表面には多数の畝状の山部
と該山部間において窪んだ溝状の谷部が形成され、該山
部および谷部は裏面において谷部および山部を形成して
なる空隙率５０〜９９％、厚み１０〜１００mmであるマ
ット状構造物であることが望ましい。以下、その内容を
説明する。Further, in the above-mentioned manufacturing method, the three-dimensional reticulated mat-like structure is formed such that a large number of synthetic polymer continuous filaments each having a diameter of 0.1 to 2.0 mm form an irregular loop. Crossing and bending in the thickness direction and extending from one to the other, the large number of synthetic polymer continuous filaments are adhered to each other at their respective intersections, and the surface has a large number of ridge-shaped ridges and gaps between the ridges. Is a mat-like structure having a porosity of 50 to 99% and a thickness of 10 to 100 mm, which is formed by forming a grooved valley portion in which the valley portion and the valley portion are formed on the back surface. Is desirable. The contents will be described below.
【００１２】[0012]
【発明の実施の形態】本発明の海藻生育基盤材におい
て、立体網状のマット状構造物は、海藻が活着する場を
提供し、また、砂地に設置した場合にあっては砂の流動
を緩和するものとして働く。BEST MODE FOR CARRYING OUT THE INVENTION In the seaweed growth base material of the present invention, the three-dimensional reticulated mat-like structure provides a place for seaweed to settle, and when installed in sandy land, mitigates the flow of sand. Work as what you do.
【００１３】かかる立体網状のマット状構造物は、熱可
塑性剛性重合体の多数の連続線条がループをなして相互
に交差し、かつこの多数の連続線条が各交差点において
接着されてなるものである。このようなマット状構造物
としては、例えば、特公昭５４−２６６２７号公報、特
公昭６２−１８６６２号公報、特開昭５０−２５８６９
号公報に記載された立体網状体を使用することができ
る。Such a three-dimensional reticulated mat-like structure is composed of a large number of continuous lines of a thermoplastic rigid polymer which form a loop and intersect each other, and a large number of these continuous lines are adhered at each intersection. Is. Examples of such a mat-like structure include Japanese Patent Publication No. 54-26627, Japanese Patent Publication No. 62-18662, and Japanese Patent Laid-Open No. 50-25869.
The three-dimensional reticulated body described in the publication can be used.
【００１４】また、アマモのように、砂地に根をおろし
茎が地面を這うようにして成長する海藻類の育生を目的
とする場合は、茎の生育が妨げられないようなマット状
構造物を使用することが望ましい。具体的には、直径
０．１〜２．０mmの多数の合成重合体連続線条の各々が
不規則なループをなして相互に交差し、かつ厚み方向に
屈曲して一方から他方に延び、この多数の合成重合体連
続線条がそれぞれの交差点において相互に接着され、表
面には多数の畝状の山部と該山部間において窪んだ溝状
の谷部が形成され、該山部および谷部は裏面において谷
部および山部を形成してなる空隙率５０〜９９％、厚み
１０〜１００mmのものを使用することが望ましい。In the case of seaweeds, such as eelgrass, whose roots are rooted in the sand and the stems crawl along the ground, the mat-like structure that does not hinder the growth of the stems is used. It is desirable to use. Specifically, each of a large number of synthetic polymer continuous filaments having a diameter of 0.1 to 2.0 mm intersects with each other in an irregular loop and is bent in the thickness direction to extend from one to the other. The large number of synthetic polymer continuous filaments are bonded to each other at their respective intersections, and a large number of ridge-like ridges and groove-like valleys depressed between the ridges are formed on the surface. It is desirable to use a valley having a porosity of 50 to 99% and a thickness of 10 to 100 mm formed by forming a valley and a peak on the back surface.
【００１５】このようなマット状構造物を構成する連続
線条は、直径が０．１〜２．０mmであることが望まし
い。０．１mm未満では、線条が細すぎてマット全体の強
力が不十分となり、２．０mmを超えと剛性が大きくな
り、マット状構造物の表面に山部と谷部が形成されにく
くなるので好ましくない。It is desirable that the continuous filaments constituting such a mat-like structure have a diameter of 0.1 to 2.0 mm. If it is less than 0.1 mm, the filaments are too thin and the strength of the entire mat becomes insufficient, and if it exceeds 2.0 mm, the rigidity becomes large and it becomes difficult to form peaks and troughs on the surface of the mat-like structure. Not preferable.
【００１６】マット状構造物の素材は、加熱により溶融
し、連続線条を形成しうるものであれば特に限定され
ず、ポリプロピレンやポリエチレン等のポリオレフィン
系、ナイロン６、ナイロン６６等のポリアミド系、ポリ
エチレンテレフタレート、ポリブチレンテレフタレート
等のポリエステル系の熱可塑性重合体を用いることがで
き、これらの重合体は、単独で、あるいは二種以上混合
した状態で使用することができる。これらの中でも、ポ
リオレフィン系の重合体は、比較的融点が低く、低温で
の紡糸が可能なことから、製造コストを考慮した場合、
都合よく用いられる。The material of the mat-like structure is not particularly limited as long as it can be melted by heating to form continuous filaments. Polyolefins such as polypropylene and polyethylene, polyamides such as nylon 6 and nylon 66, Polyester-based thermoplastic polymers such as polyethylene terephthalate and polybutylene terephthalate can be used, and these polymers can be used alone or in a mixture of two or more kinds. Among these, polyolefin-based polymers have a relatively low melting point and can be spun at low temperature, so when considering the production cost,
Used conveniently.
【００１７】このマット状構造物は、例えば、図１に示
すような装置を用いて製造することができる。この装置
は、孔径０．１〜２．０mmの紡糸孔が６〜２０mm間隔で
穿設された紡糸孔列が平行に、もしくは紡糸孔が交互に
位置するような千鳥状に、２〜３列に亘って設けられた
紡糸口金（１１）と、口金の下方に配置され、表面に山
部（１３）と谷部（１４）を有する搬送体（１２）で構
成されている。This mat-like structure can be manufactured, for example, by using an apparatus as shown in FIG. This device has 2 to 3 rows of spinning holes with hole diameters of 0.1 to 2.0 mm formed at intervals of 6 to 20 mm in parallel or in a staggered pattern in which the spinning holes are alternately located. It is composed of a spinneret (11) that is provided over the spinneret, and a carrier (12) that is disposed below the spinneret and that has peaks (13) and valleys (14) on the surface.
【００１８】マット状構造物を製造するときは、原料と
なる合成重合体を溶融状態で紡糸口金から連続線条
（２）として紡糸し、連続線条（２）の落下速度よりも
遅い速度で矢印方向に移動している搬送体（１２）の上
に自然落下させ、不規則なループを描かせて隣接する連
続線条（２）と交差させながら順次積層させる。そして
その集積時に連続線条を相互にそれぞれの交差点におい
て自己融着させた後、冷却すれば搬送体の山部（１３）
と谷部（１４）に対応して山部と谷部が形成されたマッ
ト状構造物（１）を得ることができる。When producing the mat-like structure, the synthetic polymer as a raw material is spun in a molten state from the spinneret as a continuous filament (2), and is spun at a speed slower than the falling speed of the continuous filament (2). The carrier (12) moving in the direction of the arrow is naturally dropped onto the carrier (12), and an irregular loop is drawn so as to intersect the adjacent continuous filaments (2) and are sequentially laminated. Then, when the continuous filaments are self-fused to each other at their intersections at the time of stacking and then cooled, the mountain portion (13) of the carrier is cooled.
It is possible to obtain a mat-like structure (1) in which peaks and valleys are formed corresponding to the valleys (14).
【００１９】このとき、連続線条が太すぎると線条が垂
下しにくくなり、搬送体の谷部に対応させることができ
なくなるため、連続線条の直径は前述した範囲内にする
ことが望ましい。また、紡糸口金を複数個設ければ、種
類の異なる線条を紡糸することができ、複数種の連続線
条で構成されたマット状構造物を得ることができる。At this time, if the continuous filaments are too thick, it becomes difficult for the filaments to hang down, and it becomes impossible to correspond to the valleys of the carrier. Therefore, it is desirable that the diameter of the continuous filaments be within the above-mentioned range. . Further, by providing a plurality of spinnerets, different types of filaments can be spun, and a mat-like structure composed of a plurality of types of continuous filaments can be obtained.
【００２０】このようにして得られるマット状構造物に
おいては、溝状の谷部が形成されているため、アマモの
ような海藻であっても茎は谷部に沿って這うことがで
き、生育が阻害されることはない。In the mat-like structure thus obtained, since the groove-shaped troughs are formed, the stems can crawl along the troughs even if seaweed such as eelgrass grows and grows. Will not be hindered.
【００２１】最終的に得られるマット状構造物の空隙率
は５０〜９９％であることが望ましい。５０％未満で
は、連続線条の間に形成される隙間が小さくなり、例え
ばアマモのように砂地に根をおろす海藻の場合、根の通
り抜けが困難になるからである。また９９％を超える
と、マット状構造物の強度が弱くなり、耐久性の面で問
題が生じる。The porosity of the finally obtained mat-like structure is preferably 50 to 99%. If it is less than 50%, the gap formed between the continuous filaments becomes small, and in the case of seaweed, such as eelgrass, whose roots are rooted in the sand, it is difficult to pass through the roots. On the other hand, if it exceeds 99%, the strength of the mat-like structure becomes weak and a problem occurs in terms of durability.
【００２２】また、マット状構造物の見かけの厚みは１
０〜１００mmであることが望ましい。ここで見かけの厚
みとは、マット状構造物を剛性のある平板の上に置き、
さらに構造物の上に軽くて剛性のある平板を置いたとき
の平板と平板の間の距離をいう。１０mm未満では、山部
と谷部の高低差が小さくなり、表面が平坦化するため好
ましくない。また、厚みが小さくなると、それだけ海藻
の活着する場が減少することにも留意する必要がある。
厚みが１００mm以上のマットは、製造が困難でコストの
上昇につながるため実用的でない。The apparent thickness of the mat-like structure is 1
It is desirable that it is 0 to 100 mm. Here, the apparent thickness means that the mat-like structure is placed on a rigid flat plate,
Furthermore, it refers to the distance between flat plates when a light and rigid flat plate is placed on the structure. If it is less than 10 mm, the height difference between the peaks and the valleys becomes small and the surface becomes flat, which is not preferable. It should also be noted that the thinner the thickness, the fewer the places where seaweed will thrive.
A mat having a thickness of 100 mm or more is not practical because it is difficult to manufacture and the cost increases.
【００２３】次に、マット状構造物の一方の面に積層さ
れる重錘となる開口成型物について説明する。Next, a description will be given of an opening molding product that is a weight and is laminated on one surface of the mat-like structure.
【００２４】マット状構造物は、熱可塑性重合体で構成
されており、それのみでは海底へ沈降しにくく、沈降し
ても波浪により流されるおそれがあるため、重錘を一体
化させる必要がある。また、マット状構造物は、連続線
状の集合で形成され、かつ空隙率の大きなものであるか
ら、これと重錘物を一体化させるには、重錘に開口を存
在させて、何らかの線条物を開口に通し、これをマット
状構造物中の連続線条に絡ませる、或いは結わえる必要
がある。従って、本発明において重錘となるものは開口
成型物であることが好ましい。The mat-like structure is composed of a thermoplastic polymer, and it is difficult for the mat-like structure to sink to the sea floor alone, and even if it does sink, it may be washed away by waves, so it is necessary to integrate the weights. . Moreover, since the mat-like structure is formed of a continuous linear group and has a large porosity, in order to integrate this with the weight object, an opening is made to exist in the weight and some kind of line is formed. It is necessary to pass the strip through the opening and entangle or tie it with the continuous strip in the mat-like structure. Therefore, in the present invention, it is preferable that the one serving as the weight is an opening molding.
【００２５】この開口成型物は、比重の大きなものでで
きていることが望ましく、マット状構造物と一体化した
ときの複合体の比重が２．５〜５．５となるようなもの
であることが望ましい。It is desirable that the molded opening should have a large specific gravity, and the specific gravity of the composite when integrated with the mat-like structure should be 2.5 to 5.5. Is desirable.
【００２６】このような開口成型物に適したものとし
て、鉄やステンレスでできたエキスパンドメタルやグレ
ーチング、溶接金網のような比重３以上の素材からなる
格子状成型物を挙げることができる。Suitable for such an apertured molded product is an expanded metal made of iron or stainless steel, a grating, or a lattice-shaped molded product made of a material having a specific gravity of 3 or more, such as a welding wire mesh.
【００２７】この格子状成型物においては、骨材部の間
に形成される目の大きさが一つあたり４〜２００cm2
で、１ｍ2 あたりの重さが５〜１００kgであることが望
ましい。４cm2 未満であると、両者の一体化が難しくな
るため好ましくない。また、２００cm2 を超えると格子
状成型物による補強効果が発揮されず、また１ｍ2 あた
り５kg以上の成型物を得ることが難しくなる。また、１
ｍ2 あたりの重さが５kg未満であると、海藻生育基盤材
が波浪エネルギーによって移動し、流出するおそれがあ
り、１００kgを超えると持ち運びが困難となり、作業性
が悪くなるので好ましくない。In this lattice-shaped molded product, the size of each eye formed between the aggregate parts is 4-200 cm 2
It is desirable that the weight per 1 m 2 is 5 to 100 kg. If it is less than 4 cm 2, it is difficult to integrate the two, which is not preferable. On the other hand, if it exceeds 200 cm 2 , the reinforcing effect due to the lattice-shaped molded product is not exhibited, and it becomes difficult to obtain a molded product of 5 kg or more per 1 m 2 . Also, 1
If the weight per m 2 is less than 5 kg, the seaweed growth base material may move due to wave energy and flow out, and if it exceeds 100 kg, it becomes difficult to carry and the workability deteriorates, which is not preferable.
【００２８】また、格子状成型物の厚みは１〜５０mm、
骨材部の幅は２〜５０mmであることが望ましい。厚みが
１mm未満もしくは骨材部の幅が２mm未満では、成型物が
変形するおそれがあり、また１ｍ2 あたりの重量が５kg
以上の成型物を得ることが難しくなる。また、厚みもし
くは骨材部の幅が５０mm以上になると、取り扱いにく
く、マット状構造物と一体化させることが難しくなるた
め、好ましくない。Also, the thickness of the lattice-shaped molded product is 1 to 50 mm,
The width of the aggregate portion is preferably 2 to 50 mm. If the thickness is less than 1 mm or the width of the aggregate is less than 2 mm, the molded product may be deformed, and the weight per 1 m 2 is 5 kg.
It becomes difficult to obtain the above molded product. Further, if the thickness or the width of the aggregate portion is 50 mm or more, it is not preferable because it is difficult to handle and it becomes difficult to integrate with the mat-like structure.
【００２９】上述した開口成型物をマット状構造物の一
方の面に積層し、不可分に一体化することにより本発明
の海藻生育基盤材を得ることができる。The seaweed growth base material of the present invention can be obtained by laminating the above-mentioned opening molding on one surface of the mat-like structure and integrating it integrally.
【００３０】両者の一体化は、例えば、図２に示すよう
な装置を用いて行うことができる。この装置は、マット
状構造物（１）と開口成型物（３）を一体化する連続線
条（４）を紡糸するための紡糸口金（２１）と、口金の
下方に配置された表面平滑な搬送体（２２）、及びニッ
プローラ（２３）で構成されている。両者を一体化させ
るときは、マット状構造物（１）の上に開口成型物
（３）を積層し、開口成型物（３）の上方から接着用の
連続線条（４）を紡糸し、連続線条（４）の落下速度よ
りも遅い速度で移動している搬送体（２２）及びその上
に置かれているマット状構造物（１）と開口成型物
（３）の上に自然落下させる。そして連続線条（４）
を、骨材部（３Ａ）では周回させ、開口部（３Ｂ）にお
いては垂下させてマット状構造物（１）中の連続線条
（２）と接触させ、さらに、連続線条（４）が固化しな
い間にニップロール（２３）で押圧して連続線条（４）
をマット状構造物（１）および開口成型物（３）に接着
させることにより、両者を一体化することができる。The both can be integrated by using, for example, a device as shown in FIG. This apparatus comprises a spinneret (21) for spinning a continuous filament (4) that integrates a mat-like structure (1) and an opening molding (3), and a smooth surface disposed below the spinneret. It is composed of a carrier (22) and a nip roller (23). When the two are integrated, the opening molding (3) is laminated on the mat-like structure (1), and the continuous filament (4) for bonding is spun from above the opening molding (3), Free fall onto the carrier (22) moving at a speed slower than the falling speed of the continuous filaments (4) and the mat-like structure (1) and the opening molding (3) placed on it. Let And continuous line (4)
Are circulated in the aggregate portion (3A) and hung down in the opening portion (3B) to contact the continuous filaments (2) in the mat-like structure (1), and further, the continuous filaments (4) While not solidifying, press the nip roll (23) to press the continuous line (4)
By adhering to the mat-like structure (1) and the molded opening (3), they can be integrated.
【００３１】この一体化された積層物はカッター（２
４）で切断されて本発明の海藻生育基盤材となる。カッ
ターで切断する場合、開口成型物と開口成型物の間に少
し隙間をあけるようにすると切断点（６）が形成される
ので、容易に切断することができる。This integrated laminate is a cutter (2
It is cut in 4) and becomes the seaweed growth base material of the present invention. In the case of cutting with a cutter, if a slight gap is provided between the opening moldings, a cutting point (6) is formed, so that the cutting can be easily performed.
【００３２】両者を一体化させるための連続線条の素材
は特に限定されず、ポリオレフィン系、ポリエステル
系、ポリアミド系の熱可塑性重合体を任意に使用するこ
とができる。特にポリプロピレンやポリエチレン等のポ
リオレフィン系の重合体は低温で溶融し、優れた熱接着
性を示すので好ましく用いられる。The material of the continuous filament for integrating the two is not particularly limited, and a polyolefin-based, polyester-based, or polyamide-based thermoplastic polymer can be arbitrarily used. In particular, polyolefin-based polymers such as polypropylene and polyethylene are preferably used because they melt at low temperatures and show excellent thermal adhesiveness.
【００３３】この方法によって一体化させる場合、開口
成型物の開口が小さすぎる、あるいは成型物の厚みが大
きすぎると、接着用の連続線条が開口より十分に垂下さ
れず、両者の一体化を強固なものとすることができなく
なるので留意する必要がある。また、連続線条がマット
状構造物側へ垂下することにより、マット状構造物の空
隙率はその分減少することになるので、一体化後のマッ
ト状構造物の空隙率が前述した範囲内となるように留意
する必要がある。In the case of integrating by this method, if the opening of the molded article is too small or the thickness of the molded article is too large, the continuous filament for adhesion does not hang down sufficiently from the opening, and the two are integrated. It is necessary to keep in mind that it cannot be made strong. In addition, since the continuous filament hangs down toward the mat-like structure, the porosity of the mat-like structure is reduced accordingly, so that the porosity of the mat-like structure after integration is within the range described above. It is necessary to be careful so that
【００３４】この方法以外に一体化させる方法として
は、例えば、前述の図１の製造装置を使用して立体網状
のマット状構造物を製造する際に、搬送体の上に搬送体
と間隔をあけて開口成型物を張設し、その上から連続線
条を紡糸して自然落下させ、開口成型物の開口から連続
線条を垂下紡出させるとともに、各交差点を自己融着さ
せ、さらにニップローラ（図示せず）で押圧する方法が
挙げられる。かかる方法によれば、マット状構造物の製
造と開口成型物との一体化が同時に行うことができる。As a method of integration other than this method, for example, when a three-dimensional net-like mat-like structure is manufactured using the manufacturing apparatus of FIG. Open and stretch the opening molding, spin the continuous filament from above and let it fall naturally, spin down the continuous filament from the opening of the opening molding, self-bond each intersection, and further nip roller A method of pressing with (not shown) may be used. According to this method, the production of the mat-like structure and the integration with the opening molding can be performed at the same time.
【００３５】また、マット状構造物と開口成型物をワイ
ヤーのような線条物で結わえて一体化させることもでき
る。小さな海藻生育基盤材を作りたい場合に適した方法
である。Further, the mat-like structure and the molded opening may be joined together by a linear article such as a wire to be integrated. This method is suitable for making small seaweed growth base materials.
【００３６】このようにして得られる本発明の海藻生育
基盤材は、比重が２．５〜５．５であることが好まし
い。比重は、基盤材の重さを基盤材の体積で除すことに
より算出されるが、本発明のように空隙率が大きなもの
の場合、見かけの厚みから求められる体積に（１−空隙
率（％）／１００）をかけた値を体積として、比重を算
出する必要がある。比重が２．５未満では、海流によっ
て流されるおそれがあり、５．５を超えると取り扱いに
くく、運搬および投入作業が困難となる。The seaweed growth base material of the present invention thus obtained preferably has a specific gravity of 2.5 to 5.5. The specific gravity is calculated by dividing the weight of the base material by the volume of the base material. However, in the case where the porosity is large as in the present invention, the volume obtained from the apparent thickness is (1-porosity (% ) / 100) is taken as the volume and the specific gravity must be calculated. If the specific gravity is less than 2.5, it may be washed away by the ocean current, and if it exceeds 5.5, it is difficult to handle, and transportation and loading work become difficult.
【００３７】この海藻生育基盤材は、開口成型物が海
（川）底側になるように、海もしくは川へ投入して使用
する。また、海中へ投入する場合、その配設地域は限定
されず、岩礁域、砂地海域いずれにも投入することがで
きる。そして、例えば、岩礁域に投入された場合には、
基盤材は新たな活着面を提供するので、海藻が基盤材上
で繁茂することとなる。また、砂地海域に投入された場
合は、基盤材は波浪による海流のエネルギーを遮るよう
に砂面を覆うので砂の流動が緩和され、その結果、アマ
モのように砂に根を下ろす海藻の流出が防止されること
となる。This seaweed growth base material is used by being put into the sea or a river so that the opening molding is on the bottom side of the sea (river). Further, when it is put into the sea, the area where it is arranged is not limited, and it can be put into both the reef area and the sandy sea area. And, for example, if it is thrown into a reef area,
Since the base material provides a new live surface, seaweed will grow on the base material. In addition, when it is put into the sandy sea area, the base material covers the sand surface so as to block the energy of the ocean current due to waves, so the flow of sand is mitigated, and as a result, the seaweed that roots in the sand like eelgrass flows out. Will be prevented.
【００３８】[0038]
【実施例】以下、本発明を実施例により説明する。The present invention will be described below with reference to examples.
【００３９】立体網状のマット状構造物を製造すべく、
図１のような装置を用意した。本実施例においては、直
径１mmの紡糸孔が１０mm間隔で穿設されている紡糸孔列
が二列に亘って平行に設けられている紡糸口金（１１）
を用意し、また、搬送体（１２）として、図３のように
山部（１３）と谷部（１４）が設けられたものを用意し
た。そして搬送体（１２）と紡糸口金（１１）の間隔は
２０cmとし、搬送体（１２）の移動速度は２ｍ／分に設
定した。In order to produce a three-dimensional net-like mat structure,
A device as shown in FIG. 1 was prepared. In the present embodiment, a spinneret (11) is provided in which two rows of spinning holes each having a diameter of 1 mm are formed in parallel at intervals of 10 mm.
In addition, as the carrier (12), a carrier provided with peaks (13) and valleys (14) as shown in FIG. 3 was prepared. The distance between the carrier (12) and the spinneret (11) was 20 cm, and the moving speed of the carrier (12) was set to 2 m / min.
【００４０】まず、原料として、ポリプロピレン樹脂を
用意した。これを溶融状態で紡糸口金から紡出させ、連
続線条（２）の落下速度よりも遅い速度で矢印方向に移
動している搬送体（１２）の上に自然落下させ、不規則
なループを描かせて隣接する連続線条（２）と交差させ
ながら順次集積して連続線条（２）群が搬送体（１２）
の表面形状に沿って山部と谷部を形成するようにし、集
積時に連続線条を相互にそれぞれの交差点において自己
融着させた。そして、冷却し、表面に山部（１Ａ）と谷
部（１Ｂ）を有する図４のような立体網状のマット状構
造物（１）を得た。このマット状構造物の空隙率は９３
％、見かけの厚みは２８mmであった。First, a polypropylene resin was prepared as a raw material. This is spun from the spinneret in a molten state, and is naturally dropped onto the carrier (12) moving in the direction of the arrow at a speed slower than the falling speed of the continuous filament (2) to form an irregular loop. Consecutive filaments (2) group are successively drawn while intersecting with the adjacent filaments (2) drawn, and the continuous filaments (2) group are conveyed (12).
The ridges and valleys were formed along the surface shape of the, and the continuous filaments were self-bonded to each other at the intersections during the integration. Then, it was cooled to obtain a three-dimensional net-like mat-like structure (1) as shown in FIG. 4 having peaks (1A) and valleys (1B) on the surface. The porosity of this mat-like structure is 93
%, The apparent thickness was 28 mm.
【００４１】次に、このマット状構造物と、重錘となる
開口成型物を一体化させるべく、図２に示すような製造
装置を用意した。ここで用いた紡糸口金（２１）は、前
述のマット状構造物を製造した際に用いたものと同じで
ある。また、搬送体（２２）のスピードは、２ｍ／分に
設定した。Next, a manufacturing apparatus as shown in FIG. 2 was prepared in order to integrate the mat-like structure with the molded opening which serves as a weight. The spinneret (21) used here is the same as that used when manufacturing the above-mentioned mat-like structure. The speed of the carrier (22) was set to 2 m / min.
【００４２】重錘となる開口成型物（３）として、図５
のような鉄製のエキスパンドメタルを用意した。このエ
キスパンドメタルは板厚８mmの鉄板を加工したもので、
ＬＷ１３５．４mm、ＳＷ３４mmで、大きさは９０cm×１
８１cm、厚みは約１８mmであり、１ｍ2 あたりの重さは
３３．２kgであった。As an opening molding (3) which becomes a weight, FIG.
Prepared an expanded metal made of iron such as. This expanded metal is made by processing an iron plate with a plate thickness of 8 mm.
LW135.4mm, SW34mm, size 90cm x 1
The thickness was 81 cm, the thickness was about 18 mm, and the weight per 1 m 2 was 33.2 kg.
【００４３】マット状構造物とエキスパンドメタルの一
体化は次のように行った。まず、搬送体上にマット状構
造物（１）を連続的に供給し、その上にエキスパンドメ
タル（３）を積層し、両者が搬送体（２２）と同じ速度
で同じ方向に移動するようにした。そして、その上か
ら、ポリプロピレン樹脂を溶融状態で紡糸口金より紡出
せしめ、自然落下させて、エキスパンドメタルの骨材部
（３Ａ）に連続線条（４）を周回させると同時に、開口
部（３Ｂ）においては垂下させてマット状構造物中
（１）の連続線条と絡み合わせた。そして、連続線条
（４）が固化しない間に、ニップローラ（２３）で押圧
することにより、連続線条（４）をエキスパンドメタル
（３）およびマット状構造物（１）に接着させ、両者を
一体させた。最後にこれをカッター（２４）で切断し
て、本発明の海藻生育基盤材（５）を得た。得られた海
藻生育基盤材の断面図を図６に示す。この基盤材は、空
隙率約８５％、１ｍ2 あたりの重さが３６．８kgであ
り、見かけの厚みは約５０mm、比重は４．８であった。The mat-like structure and the expanded metal were integrated as follows. First, the mat-like structure (1) is continuously supplied onto the carrier, and the expanded metal (3) is laminated on the mat-like structure (1) so that they both move in the same direction at the same speed as the carrier (22). did. Then, polypropylene resin is spun on the spinneret in a molten state from above, and is spontaneously dropped to cause the continuous wire (4) to circulate around the aggregate part (3A) of the expanded metal, and at the same time, the opening part (3B). ), It was hung down and entangled with the continuous filament of (1) in the mat-like structure. Then, while the continuous filament (4) is not solidified, it is pressed by the nip roller (23) to bond the continuous filament (4) to the expanded metal (3) and the mat-like structure (1), and both I made it one. Finally, this was cut with a cutter (24) to obtain a seaweed growth base material (5) of the present invention. A cross-sectional view of the obtained seaweed growth base material is shown in FIG. This base material had a porosity of about 85%, a weight per 1 m 2 of 36.8 kg, an apparent thickness of about 50 mm, and a specific gravity of 4.8.
【００４４】この海藻生育基盤材を、海藻の生育が全く
見られない砂地海域へ投入したところ、６ヶ月後にはア
マモ等の砂地に根をおろす海藻がマット状構造物の谷部
に茎を這わせながら順調に育っている様子が確認され
た。また、この基盤材を、磯やけの著しい岩礁域へ投入
したところ、６ヶ月後には様々な種類の海藻が繁茂して
おり、周囲には小魚や貝類が多数群がっている様子が確
認された。When this seaweed growth base material was put into a sandy sea area where no seaweed growth was observed at all, after 6 months, seaweed rooted in the sandy ground such as eelgrass crawled the stem into the valley of the mat-like structure. It was confirmed that they were growing up smoothly. In addition, when this base material was put into a rocky reef area where rocks and rocks were marked, it was confirmed that various types of seaweed had proliferated after 6 months, and many small fish and shellfish were found around the area.
【００４５】[0045]
【発明の効果】本発明の海藻生育基盤材は、連続線条で
構成された立体網状のマット状構造物で構成されている
ため、同じ体積の岩石に比して海藻の活着しうる面積が
大きく海藻が繁茂しやすい。またその空隙率が大きく、
良好な通水性が担保されるので、小魚や貝類の棲息に格
好の場を提供することができる。EFFECTS OF THE INVENTION Since the seaweed growth base material of the present invention is composed of a three-dimensional reticulated mat-like structure composed of continuous filaments, the area in which seaweed can be deposited is larger than that of rock of the same volume. Large seaweed is easy to grow. Also, its porosity is large,
Since good water permeability is secured, it is possible to provide a suitable place for small fish and shellfish to live.
【００４６】また、本発明の海藻生育基盤材を砂地上に
設置した場合は、マット状構造物が波浪による海流エネ
ルギーを遮るようにして砂面を覆うので、砂の流動が緩
和され、根をおろしたばかりの幼い海藻の流出を防止す
ることができる。Further, when the seaweed growth base material of the present invention is installed on the sandy surface, the mat-like structure covers the sand surface so as to block the ocean current energy due to the waves, so that the flow of sand is relaxed and the roots are It can prevent the outflow of young seaweed that has just been grated.
【００４７】そして、本発明の海藻生育基盤材は、開口
成型物によって海中での沈降性が担保されているので、
海流によって流されることもなく、長い年月に亘って優
れた海藻場を提供することができる。Since the seaweed growth base material of the present invention is secured in the sea by the opening molding,
It is possible to provide an excellent seaweed bed for many years without being washed away by the ocean current.
【図１】立体網状のマット状構造物の製造装置の一例を
略示した側面図である。FIG. 1 is a side view schematically showing an example of an apparatus for manufacturing a three-dimensional net-like mat-like structure.
【図２】本発明の海藻生育基盤材の製造装置の一例を略
示した側面図である。FIG. 2 is a side view schematically showing an example of an apparatus for producing a seaweed growth base material of the present invention.
【図３】マット状構造物の製造に使用する搬送体の一例
を略示した平面図である。FIG. 3 is a plan view schematically showing an example of a carrier used for manufacturing a mat-like structure.
【図４】実施例で使用した立体網状のマット状構造物の
斜視図である。FIG. 4 is a perspective view of a three-dimensional net-like mat-like structure used in an example.
【図５】実施例で使用したエキスパンドメタルの斜視図
である。FIG. 5 is a perspective view of the expanded metal used in the examples.
【図６】海藻生育基盤材の断面図である。FIG. 6 is a cross-sectional view of a seaweed growth base material.
１ マット状構造物 １Ａ 山部 １Ｂ 谷部 ２ 連続線条 ３ 開口成型物 ３Ａ 骨材部 ３Ｂ 開口部 ４ 連続線条 ５ 海藻生育基盤材 1 Mat-like structure 1A Mountain part 1B Valley part 2 Continuous filament 3 Opening molding 3A Aggregate part 3B Opening 4 Continuous filament 5 Seaweed growth base material
Claims (6)
がループをなして相互に交差し、かつこの多数の連続線
条が各交差点において接着されてなる立体網状のマット
状構造物の一面に、重錘となる開口成型物が不可分に一
体化された複合体であって、比重が２．５〜５．５であ
ることを特徴とする海藻生育基盤材。1. One side of a three-dimensional reticulated mat-like structure, comprising a plurality of continuous filaments made of a thermoplastic polymer which form a loop and intersect each other, and which are adhered at each intersection. In addition, a seaweed growth base material, which is a complex in which an opening molded product serving as a weight is inseparably integrated and has a specific gravity of 2.5 to 5.5.
０．１〜２．０mmの多数の合成重合体連続線条の各々が
不規則なループをなして相互に交差し、かつ厚み方向に
屈曲して一方から他方に延び、この多数の合成重合体連
続線条がそれぞれの交差点において相互に接着され、表
面には多数の畝状の山部と該山部間において窪んだ溝状
の谷部が形成され、該山部および谷部は裏面において谷
部および山部を形成してなる空隙率５０〜９９％、厚み
１０〜１００mmであるマット状構造物である請求項１記
載の海藻生育基盤材。2. The three-dimensional reticulated mat-like structure, wherein a large number of synthetic polymer continuous filaments each having a diameter of 0.1 to 2.0 mm intersect each other in an irregular loop and cross each other in the thickness direction. Bending from one side to the other and extending from one side to the other side, the numerous synthetic polymer continuous filaments are adhered to each other at their respective intersections, and the surface has a large number of ridge-like ridges and groove-like depressions between the ridges. The seaweed according to claim 1, wherein a valley portion is formed, and the peak portion and the valley portion are mat-like structures having a porosity of 50 to 99% and a thickness of 10 to 100 mm formed by forming the valley portion and the peak portion on the back surface. Growth base material.
上の素材からなり、格子間に形成される目の大きさが一
つあたり４〜２００cm2 であり、１ｍ2 あたりの重さが
５〜１００kgである格子状成型物である請求項１もしく
は請求項２記載の海藻生育基盤材。3. The apertured molding that serves as the weight is made of a material having a specific gravity of 3 or more, and the size of the mesh formed between the lattices is 4 to 200 cm 2 , and the weight per 1 m 2 The seaweed growth base material according to claim 1 or 2, which is a lattice-shaped molded product having a weight of 5 to 100 kg.
ない熱可塑性重合体からなる連続線条が、開口成型物の
開口部以外の部分を周回して開口成型物と熱接着してお
り、かつ開口部においては垂下してマット状構造物を構
成する連続線条と熱接着していることにより、マット状
構造物と開口成型物が不可分に一体化されていることを
特徴とする請求項１〜３いずれか１項記載の海藻生育基
盤材。4. A continuous filament made of a thermoplastic polymer, which is not a continuous filament constituting the mat-like structure, circulates around a portion other than the opening of the aperture molded article and is thermally bonded to the aperture molded article. In addition, the mat-shaped structure and the molded opening are inseparably integrated by being thermally bonded to the continuous filaments that hang down in the opening and form the mat-shaped structure. Item 3. The seaweed growth base material according to any one of items 1 to 3.
がループをなして相互に交差し、かつこの多数の連続線
条が各交差点において接着されてなる立体網状のマット
状構造物の一面に、重錘となる開口成型物を積層し、開
口成型物の上方から熱可塑性重合体を連続線条として紡
出して落下させ、この連続線条が固化しない間にニップ
ロールで押圧することによりマット状構造物と開口成型
物を不可分に一体化させることを特徴とする海藻生育基
盤材の製造方法。5. One surface of a three-dimensional reticulated mat-like structure comprising a plurality of continuous filaments made of a thermoplastic polymer which form a loop and intersect each other, and the plurality of continuous filaments are adhered at each intersection. On top of this, stack an opening molding that will become a dead weight, spun the thermoplastic polymer from above the opening molding as a continuous filament and drop it, and press it with a nip roll while the continuous filament does not solidify. A method for producing a seaweed growth base material, which comprises integrating an annular structure with an opening molding.
０．１〜２．０mmの多数の合成重合体連続線条の各々が
不規則なループをなして相互に交差し、かつ厚み方向に
屈曲して一方から他方に延び、この多数の合成重合体連
続線条がそれぞれの交差点において相互に接着され、表
面には多数の畝状の山部と該山部間において窪んだ溝状
の谷部が形成され、該山部および谷部は裏面において谷
部および山部を形成してなる空隙率５０〜９９％、厚み
１０〜１００mmであるマット状構造物である請求項５記
載の海藻生育基盤材の製造方法。6. The three-dimensional reticulated mat-like structure, wherein a large number of synthetic polymer continuous filaments each having a diameter of 0.1 to 2.0 mm cross each other in an irregular loop and have a thickness direction. Bending from one side to the other and extending from one side to the other side, the numerous synthetic polymer continuous filaments are adhered to each other at their respective intersections, and the surface has a large number of ridge-like ridges and groove-like depressions between the ridges. The seaweed according to claim 5, wherein a valley portion is formed, and the peak portion and the valley portion are mat-like structures having a porosity of 50 to 99% and a thickness of 10 to 100 mm formed by forming the valley portion and the peak portion on the back surface. Method for producing growth base material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30812195A JP3181821B2 (en) | 1995-10-31 | 1995-10-31 | Seaweed growth base material and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30812195A JP3181821B2 (en) | 1995-10-31 | 1995-10-31 | Seaweed growth base material and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09121702A true JPH09121702A (en) | 1997-05-13 |
| JP3181821B2 JP3181821B2 (en) | 2001-07-03 |
Family
ID=17977139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30812195A Expired - Fee Related JP3181821B2 (en) | 1995-10-31 | 1995-10-31 | Seaweed growth base material and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3181821B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002281860A (en) * | 2001-03-28 | 2002-10-02 | Ain Eng Kk | Artificial seaweed bed and fish bank |
| CN102715073A (en) * | 2012-06-11 | 2012-10-10 | 王元孝 | Electric seaweed seedling clamping machine |
| JP2020127379A (en) * | 2019-02-08 | 2020-08-27 | パネフリ工業株式会社 | Transplant auxiliary material, transplant auxiliary kit and transplant method of large algae |
-
1995
- 1995-10-31 JP JP30812195A patent/JP3181821B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002281860A (en) * | 2001-03-28 | 2002-10-02 | Ain Eng Kk | Artificial seaweed bed and fish bank |
| CN102715073A (en) * | 2012-06-11 | 2012-10-10 | 王元孝 | Electric seaweed seedling clamping machine |
| JP2020127379A (en) * | 2019-02-08 | 2020-08-27 | パネフリ工業株式会社 | Transplant auxiliary material, transplant auxiliary kit and transplant method of large algae |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3181821B2 (en) | 2001-07-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8443749B2 (en) | Floating island module comprised of post-consumer carpet fiber matrix and method of manufacturing same | |
| CN102894550A (en) | Hook fastener and method of making | |
| JPS589186B2 (en) | Pine-like formation and its manufacturing method | |
| WO1987005642A1 (en) | Sheet for forming twisted surface and production thereof | |
| JPS6119420B2 (en) | ||
| JPH11241264A (en) | Three-dimensional network structure and method for manufacturing the same | |
| JP2002119160A (en) | Resin culture medium, water purifying device and method using the same resin culture medium | |
| JPH09121702A (en) | Base substrate for growing algae and its production | |
| JP2020127379A (en) | Transplant auxiliary material, transplant auxiliary kit and transplant method of large algae | |
| JP3681804B2 (en) | Manufacturing method of civil engineering underlay mat | |
| JP3905210B2 (en) | Biodegradable solid network structure | |
| JP3909184B2 (en) | Reticulated body and method for producing the same | |
| JP3423390B2 (en) | Materials for civil engineering | |
| JPH06146231A (en) | Three-dimensional net-like structure laid underwater | |
| JP4331880B2 (en) | Three-dimensional network and method for producing the same | |
| JP2512867Y2 (en) | Drainage material for civil engineering | |
| JPH078577Y2 (en) | Drainage material for civil engineering | |
| JPH08207954A (en) | Uneven mesh sheet | |
| JP2003278129A6 (en) | Erosion control panel that can be greened and its laying method | |
| JPH0670659A (en) | Artificial fishing bank material | |
| JP2003278129A (en) | Erosion control panel that can be greened and its laying method | |
| JP2001254362A (en) | Erosion control mat | |
| JP3766504B2 (en) | Three-dimensional network structure and manufacturing method thereof | |
| JPH01314771A (en) | Three-dimensional net material | |
| JPS6023725B2 (en) | Civil engineering materials |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090420 Year of fee payment: 8 |
|
| LAPS | Cancellation because of no payment of annual fees |