JP4902303B2 - Paper agricultural covering - Google Patents
Paper agricultural covering Download PDFInfo
- Publication number
- JP4902303B2 JP4902303B2 JP2006251750A JP2006251750A JP4902303B2 JP 4902303 B2 JP4902303 B2 JP 4902303B2 JP 2006251750 A JP2006251750 A JP 2006251750A JP 2006251750 A JP2006251750 A JP 2006251750A JP 4902303 B2 JP4902303 B2 JP 4902303B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- paper
- wax
- semi
- covering material
- 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.)
- Active
Links
- 239000003921 oil Substances 0.000 claims description 120
- 235000019198 oils Nutrition 0.000 claims description 120
- 238000001035 drying Methods 0.000 claims description 63
- 239000000463 material Substances 0.000 claims description 61
- 239000001993 wax Substances 0.000 claims description 47
- 239000002689 soil Substances 0.000 claims description 32
- 238000000576 coating method Methods 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 25
- 239000011248 coating agent Substances 0.000 claims description 23
- 235000019197 fats Nutrition 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 14
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 7
- 239000000944 linseed oil Substances 0.000 claims description 6
- 235000021388 linseed oil Nutrition 0.000 claims description 6
- 240000007594 Oryza sativa Species 0.000 claims description 5
- 235000007164 Oryza sativa Nutrition 0.000 claims description 5
- 235000019484 Rapeseed oil Nutrition 0.000 claims description 5
- 239000004203 carnauba wax Substances 0.000 claims description 5
- 235000013869 carnauba wax Nutrition 0.000 claims description 5
- 235000009566 rice Nutrition 0.000 claims description 5
- 235000005687 corn oil Nutrition 0.000 claims description 4
- 239000002285 corn oil Substances 0.000 claims description 4
- 235000012343 cottonseed oil Nutrition 0.000 claims description 4
- -1 jojoba oil Substances 0.000 claims description 4
- 239000012188 paraffin wax Substances 0.000 claims description 4
- 239000002383 tung oil Substances 0.000 claims description 4
- 235000019485 Safflower oil Nutrition 0.000 claims description 3
- 239000002385 cottonseed oil Substances 0.000 claims description 3
- 235000005713 safflower oil Nutrition 0.000 claims description 3
- 239000003813 safflower oil Substances 0.000 claims description 3
- 239000003549 soybean oil Substances 0.000 claims description 3
- 235000012424 soybean oil Nutrition 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- DSEKYWAQQVUQTP-XEWMWGOFSA-N (2r,4r,4as,6as,6as,6br,8ar,12ar,14as,14bs)-2-hydroxy-4,4a,6a,6b,8a,11,11,14a-octamethyl-2,4,5,6,6a,7,8,9,10,12,12a,13,14,14b-tetradecahydro-1h-picen-3-one Chemical compound C([C@H]1[C@]2(C)CC[C@@]34C)C(C)(C)CC[C@]1(C)CC[C@]2(C)[C@H]4CC[C@@]1(C)[C@H]3C[C@@H](O)C(=O)[C@@H]1C DSEKYWAQQVUQTP-XEWMWGOFSA-N 0.000 claims description 2
- 235000019489 Almond oil Nutrition 0.000 claims description 2
- 239000004166 Lanolin Substances 0.000 claims description 2
- 235000019498 Walnut oil Nutrition 0.000 claims description 2
- 239000008168 almond oil Substances 0.000 claims description 2
- 235000013871 bee wax Nutrition 0.000 claims description 2
- 239000012166 beeswax Substances 0.000 claims description 2
- 229940092738 beeswax Drugs 0.000 claims description 2
- 239000004204 candelilla wax Substances 0.000 claims description 2
- 235000013868 candelilla wax Nutrition 0.000 claims description 2
- 229940073532 candelilla wax Drugs 0.000 claims description 2
- 239000004359 castor oil Substances 0.000 claims description 2
- 235000019438 castor oil Nutrition 0.000 claims description 2
- 239000003240 coconut oil Substances 0.000 claims description 2
- 235000019864 coconut oil Nutrition 0.000 claims description 2
- 235000008524 evening primrose extract Nutrition 0.000 claims description 2
- 239000010475 evening primrose oil Substances 0.000 claims description 2
- 229940089020 evening primrose oil Drugs 0.000 claims description 2
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 2
- 239000008169 grapeseed oil Substances 0.000 claims description 2
- 239000010460 hemp oil Substances 0.000 claims description 2
- IUJAMGNYPWYUPM-UHFFFAOYSA-N hentriacontane Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC IUJAMGNYPWYUPM-UHFFFAOYSA-N 0.000 claims description 2
- 229940119170 jojoba wax Drugs 0.000 claims description 2
- 235000019388 lanolin Nutrition 0.000 claims description 2
- 229940039717 lanolin Drugs 0.000 claims description 2
- 239000004200 microcrystalline wax Substances 0.000 claims description 2
- 235000019808 microcrystalline wax Nutrition 0.000 claims description 2
- 239000012170 montan wax Substances 0.000 claims description 2
- 239000008159 sesame oil Substances 0.000 claims description 2
- 235000011803 sesame oil Nutrition 0.000 claims description 2
- 239000008170 walnut oil Substances 0.000 claims description 2
- 238000009313 farming Methods 0.000 claims 1
- 239000000123 paper Substances 0.000 description 68
- 230000000052 comparative effect Effects 0.000 description 12
- 238000012360 testing method Methods 0.000 description 6
- 239000004621 biodegradable polymer Substances 0.000 description 5
- 238000003306 harvesting Methods 0.000 description 5
- 244000088415 Raphanus sativus Species 0.000 description 4
- 235000006140 Raphanus sativus var sativus Nutrition 0.000 description 4
- 229920002988 biodegradable polymer Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 235000015112 vegetable and seed oil Nutrition 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 3
- 238000013329 compounding Methods 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000002655 kraft paper Substances 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 229920000098 polyolefin Polymers 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 241000607479 Yersinia pestis Species 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000010872 fertilizer runoff Substances 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 239000011630 iodine Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004162 soil erosion Methods 0.000 description 2
- 238000009331 sowing Methods 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 240000002791 Brassica napus Species 0.000 description 1
- 235000004977 Brassica sinapistrum Nutrition 0.000 description 1
- 235000005956 Cosmos caudatus Nutrition 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- 240000000797 Hibiscus cannabinus Species 0.000 description 1
- 240000008415 Lactuca sativa Species 0.000 description 1
- 244000061176 Nicotiana tabacum Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 244000294611 Punica granatum Species 0.000 description 1
- 235000014360 Punica granatum Nutrition 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012773 agricultural material Substances 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 229940121375 antifungal agent Drugs 0.000 description 1
- 239000003429 antifungal agent Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 239000004626 polylactic acid Substances 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 239000001944 prunus armeniaca kernel oil Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 235000012045 salad Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 238000009333 weeding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
- A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
- A01G13/0256—Ground coverings
- A01G13/0268—Mats or sheets, e.g. nets or fabrics
- A01G13/0275—Films
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
- A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Protection Of Plants (AREA)
- Paper (AREA)
- Catching Or Destruction (AREA)
Description
本発明は、紙製農業用被覆材に関し、特に、農作物育成に必要な機能を有しながら、かつ機械による展張が可能な強度を有する、紙を骨材とする紙製農業用被覆材に関するものである。 The present invention relates to a paper agricultural covering material, and in particular, to a paper agricultural covering material using paper as an aggregate, having a function necessary for growing crops and having a strength capable of being expanded by a machine. It is.
農業用資材として被覆材は大きな市場を形成している。これは、光を遮ることで雑草の生長を抑制したり、地温を調整したり、土壌水分の保持、土壌浸食の防止、肥料の流亡防止、病害虫の発生抑制などの効果を発揮することで、作物の生育を助けることを目的としている。 As agricultural materials, covering materials form a big market. By blocking the light, weeding the weeds, adjusting the soil temperature, maintaining soil moisture, preventing soil erosion, preventing fertilizer runoff, controlling the occurrence of pests, The purpose is to help the crops grow.
現在ではポリエチレンフィルム等のポリオレフィン系フィルムが主流となっており、透明、黒、緑など用途に応じて着色されたフィルムが広く使われている。ポリオレフィン系のフィルムは、安価で軽量、保管時の劣化が少ないなどの利点があり、また、作物の生育に関しては問題が少なく、農家にとっては必要不可欠な資材とまでなっている。 At present, polyolefin films such as polyethylene films are the mainstream, and films colored according to applications such as transparent, black, and green are widely used. Polyolefin-based films have advantages such as low cost, light weight, and little deterioration during storage. In addition, there are few problems regarding the growth of crops, and they have become indispensable materials for farmers.
しかし、このポリエチレンフィルム等のポリオレフィン系フィルムの最大の欠点は、土中で分解されないことにある。つまり、使用後には機械あるいは手で巻き取り、回収することが必要であり、この回収作業の負担は肉体的にも金銭的にも大きなものとなっている。 However, the greatest drawback of polyolefin films such as polyethylene films is that they are not decomposed in the soil. In other words, after use, it is necessary to wind up and collect it with a machine or by hand, and the burden of this collection work is large both physically and financially.
また、これらの回収作業において、どうしても切れ端は土中に残ってしまい、これらは永久に農地に残ることとなる。回収後の被覆材の扱いとしてこれまで許されてきた焼却処分も、法律改正に伴い野焼きが禁止となったことで、回収した使用済フィルムは適正に処理しなければならないことになっている。これは処分場の問題もあり、その処理費用は農家の経営を直撃する大きな問題となっている。 Moreover, in these collection | recovery operations, a piece will inevitably remain in the soil, and these will remain permanently on the farmland. The incineration disposal that has been permitted so far as the treatment of the coating material after collection has also been prohibited due to the field revision, and the collected used film must be properly processed. This is also a problem at the disposal site, and the cost of disposal is a major problem that directly hits the farmer's management.
さらに、これを解決するべく土を落として再利用する方法も提案されているが、完全に土を除去できないことや、この被覆材を機械で展張させるためには、きちんと巻き取らなければ次年度使用することができない、という大きな問題を抱えており、再利用についてはなかなか進んでいないのが実情である。 In order to solve this problem, a method of dropping and reusing the soil has been proposed. However, in order to remove the soil completely and to spread this coating material with a machine, the next fiscal year must be taken up properly. There is a big problem that it cannot be used, and the fact is that the reuse is not progressing.
これを解決する方法として、生分解高分子を利用した被覆材の開発が進められている。実際に、でんぷん系、ポリ乳酸系など多くの生分解高分子による農業用被覆材が上市されており、特に夏場に回収作業を進めなければならないとうもろこし栽培においては、そのまま土中に鋤きこめるこれらの商材は一部利用が始まっている。 As a method for solving this problem, development of a coating material using a biodegradable polymer is underway. Actually, many bio-degradable polymer coatings such as starch and polylactic acid have been put on the market. Especially in corn cultivation, which must be collected in the summer, these can be put into the soil as they are. Some of the products have started to be used.
しかしながら、生分解高分子製被覆材は、価格が高いことがネックとなり市場ではまだまだ浸透していない。また、生分解高分子の場合には、保存期間中に劣化が進行するため、流通上在庫が持てないという大きな課題を抱えており、この実用化にはまだまだ大きなハードルがあると言わざるを得ない状況である。 However, biodegradable polymer coating materials have not yet penetrated the market due to the high price. In the case of biodegradable polymers, degradation progresses during the storage period, and thus has a major problem that it cannot be stocked for distribution, and it must be said that there are still significant hurdles for this practical application. There is no situation.
同じく土中で容易に分解する素材として、紙を使った被覆材の開発も数多く進められている。特に、紙の場合には流通上倉庫に保管している間も経時で劣化することがないため、商品としての価値は生分解性高分子よりも非常に有利である。実際、紙を使った農業用被覆材はすでに各地の農業試験場において実用化試験に供されたことがある（紙製農業用被覆材は、一般的には、紙マルチシート又はマルチング紙と呼ばれることがある）。 Similarly, a lot of paper coating materials are being developed as materials that can be easily decomposed in soil. In particular, in the case of paper, since it does not deteriorate with time even while being stored in a warehouse for distribution, its value as a product is much more advantageous than biodegradable polymers. In fact, paper-based agricultural coatings have already been put into practical use at various agricultural test sites (paper agricultural coatings are commonly referred to as paper multi-sheet or mulching paper) There).
しかしながら、紙の最大の欠点は、日照に伴う紫外線、熱などや雨、風による劣化が速く、また、土と接触する場所での崩壊が激しく、農作物の生育を待つ前に劣化・崩壊が進んでしまうことにある。また、欠損があると容易に裂けてしまうため、機械による展張が難しい面もあり、実際の農家における利用には耐えられる状態ではないのが実情であった。 However, the biggest disadvantage of paper is that it is rapidly deteriorated by sunlight, ultraviolet rays, heat, rain, and wind, and it is severely collapsed in contact with the soil. There is to be. In addition, if there is a defect, it will be easily torn, which makes it difficult to expand with a machine.
これを解決するべく、土と接触する部分に防黴剤および／または抗菌剤を含有させる方法（特許文献１参照）や、フルート加工またはエンボス加工をすることで土との接触面積を減らして分解を遅らせる試み（特許文献２参照）等が検討されている。また、耐水・撥水効果が高く、取り扱いが比較的容易な乾性油を紙製被覆材に含有させることにより、農作物育成中の被覆材の分解・劣化を遅らせる発案もなされている（特許文献３参照）。
しかしながら、従来の紙製農業用被覆材によれば、コスト・安全性・強度の点で問題を有している。例えば、特許文献１や特許文献２によれば、いずれもコストアップにつながるうえに、そのコストに見合う強度が得られず、また、特許文献３によれば、コスト面はクリアされても、依然として強度が得られないために、実用化がなされていない状況にある。 However, conventional paper agricultural covering materials have problems in terms of cost, safety, and strength. For example, according to Patent Document 1 and Patent Document 2, both lead to an increase in cost, and the strength corresponding to the cost cannot be obtained. Further, according to Patent Document 3, even if the cost is cleared, it still remains. Since the strength cannot be obtained, it has not been put into practical use.
従って、本発明の目的は、農業用被覆材としての機能を損なうことなく、かつ安全性が高く、かつ機械展張が可能な強度を有する紙製農業用被覆材を提供することである。 Accordingly, an object of the present invention is to provide a paper agricultural covering material that does not impair the function as an agricultural covering material, has high safety, and has a strength capable of machine stretching.
本発明は、上記目的を達成するために、乾性油、半乾性油、常温で固体かつ融点が１００℃未満のワックスを含み、その配合比（質量比）が乾性油：半乾性油：ワックス＝１．０：１．０以下：０．３以下である油脂組成物を土中で分解可能な紙の一部又は全体に含有させてなる紙製農業用被覆材を提供する。 In order to achieve the above object, the present invention includes a drying oil, a semi-drying oil, a wax that is solid at room temperature and has a melting point of less than 100 ° C., and the blending ratio (mass ratio) thereof is drying oil: semi-drying oil: wax = Provided is a paper agricultural covering material comprising an oil or fat composition of 1.0: 1.0 or less: 0.3 or less contained in part or all of paper that can be decomposed in soil.
また、本発明は、上記目的を達成するために、土中で分解可能な紙の一部又は全体の任意の部位に、乾性油、半乾性油および常温で固体かつ融点が１００℃未満のワックスを含有し、その含有質量比が乾性油：半乾性油：ワックス＝１．０：１．０以下：０．３以下であることを特徴とする紙製農業用被覆材を提供する。 Further, in order to achieve the above object, the present invention provides a dry oil, a semi-dry oil and a wax having a melting point of less than 100 ° C. at a part or all of a part of the paper that can be decomposed in soil. Is provided, and the content ratio by mass of the dry oil: semi-dry oil: wax = 1.0: 1.0 or less: 0.3 or less is provided.
本発明によると、農業用被覆材としての機能を損なうことなく、かつ安全性が高く、かつ機械展張が可能な強度を有する紙製農業用被覆材を提供することができる。 According to the present invention, it is possible to provide a paper agricultural covering material having a high safety and strength capable of machine stretching without impairing the function as an agricultural covering material.
〔本発明の実施の形態に係る紙製農業用被覆材〕
本発明の実施の形態に係る紙製農業用被覆材は、乾性油、半乾性油、常温で固体かつ融点が１００℃未満のワックスを含み、その配合比（質量比）が乾性油：半乾性油：ワックス＝１．０：１．０以下：０．３以下である油脂組成物を土中で分解可能な紙の一部又は全体に含有させてなる。配合比（質量比）が乾性油：半乾性油＝１．０：１．０以下である乾性油と半乾性油を含む油脂組成物を土中で分解可能な紙の一部又は全体に含有させた後、乾性油との質量比が１．０：０．３以下となるようにワックスを当該紙の油脂組成物含有部分に含有させてもよい。
[Paper Agricultural Coating Material According to Embodiment of the Present Invention]
The paper agricultural coating material according to the embodiment of the present invention includes a drying oil, a semi-drying oil, a wax that is solid at room temperature and has a melting point of less than 100 ° C. Oil: wax = 1.0: 1.0 or less: 0.3 or less An oil composition is contained in a part or the whole of paper that can be decomposed in soil. Oil composition containing a drying oil and a semi-drying oil with a compounding ratio (mass ratio) of drying oil: semi-drying oil = 1.0: 1.0 or less is contained in part or all of paper that can be decomposed in soil. Then, the wax may be contained in the oil composition-containing portion of the paper so that the mass ratio with the drying oil is 1.0: 0.3 or less.
これにより、土中で分解可能な紙の一部又は全体の任意の部位に、乾性油、半乾性油および常温で固体かつ融点が１００℃未満のワックスを含有し、その含有質量比が乾性油：半乾性油：ワックス＝１．０：１．０以下：０．３以下である紙製農業用被覆材を得ることができる。 As a result, a part of the paper that can be decomposed in the soil or an arbitrary part of the whole contains a drying oil, a semi-drying oil, and a wax that is solid at room temperature and has a melting point of less than 100 ° C. : Semi-drying oil: wax = 1.0: 1.0 or less: 0.3 or less can be obtained.
（紙製農業用被覆材）
本発明における紙製農業用被覆材とは、土中で分解可能な紙で作製した農業用被覆材のことを意味する。本発明における農業用被覆材とは、農作物の栽培において、農作物以外の部分の土壌表面を、被覆することのできる資材のことを意味する。農業用被覆材は、農作物以外の部分の土壌表面を覆うことで、雑草の生長抑制、地温調整、土壌水分の保持、土壌浸食の防止、肥料の流亡防止、病害虫の発生抑制等の効果を有するため、農作物の生育を助けるために使用される。また、本発明における農業用被覆材は、マルチシート又はマルチングと呼ばれることがある。
(Paper agricultural covering material)
The paper agricultural covering material in the present invention means an agricultural covering material made of paper that can be decomposed in soil. The agricultural covering material in the present invention means a material capable of covering the soil surface of a portion other than the agricultural product in the cultivation of the agricultural product. Agricultural covering material covers the surface of soil other than crops, and has effects such as suppression of weed growth, adjustment of soil temperature, retention of soil moisture, prevention of soil erosion, prevention of fertilizer runoff, and prevention of pests. Therefore, it is used to help grow crops. Moreover, the agricultural coating | covering material in this invention may be called a multi sheet | seat or a mulching.
（乾性油）
乾性油とは、塗料、インキ用に植物油を使用する場合、酸化重合のしやすいものとして分類したものを示している。定義としてはヨウ素価が１３０以上のものを示し、一般的には亜麻仁油、サフラワー油、大豆油、桐油、グレープシード油、胡桃油、月見草油、芥子油、麻実油などがあり、学術的にはうるし核油、ざくろ種子油、タバコ種子油などもこれに該当する。これらの乾性油は、１種又は２種以上を使用することができる。
(Drying oil)
The dry oil refers to those classified as those subject to oxidative polymerization when vegetable oil is used for paints and inks. Definitions are those with an iodine number of 130 or more, and generally include linseed oil, safflower oil, soybean oil, tung oil, grape seed oil, walnut oil, evening primrose oil, coconut oil, hemp seed oil, etc. Examples of this include urushi kernel oil, pomegranate seed oil, tobacco seed oil, and the like. These drying oils can use 1 type (s) or 2 or more types.
（半乾性油）
半乾性油とは、同じく塗料分野において、乾性油ほど容易に酸化重合して被膜を形成しないものの、経時とともに重合が進むものとして、通常まったく乾燥しない不乾性油とは明確に分けているものである。定義としては、ヨウ素価が１００以上１３０未満のものを示し、ゴマ油、綿実油、コーン油、菜種油、米油、アーモンド油などがあり、学術的にはあんず核油、オレンジ種子油などがこれに該当する。これらの半乾性油は、１種又は２種以上を使用することができる。
(Semi-drying oil)
Semi-drying oil is also the same in the paint field as it does not form a film by oxidation polymerization as easily as drying oil, but it is clearly separated from non-drying oil that usually does not dry at all as polymerization progresses with time. is there. Definitions are those with an iodine value of 100 or more and less than 130, such as sesame oil, cottonseed oil, corn oil, rapeseed oil, rice oil, almond oil, and academically apricot kernel oil, orange seed oil, etc. To do. These semi-drying oils can be used alone or in combination of two or more.
（ワックス）
ワックスとは、常温で固形なものであり、明確な定義は存在しないが、本実施の形態においては、常温（２０〜３５℃程度）で固体、かつ融点が１００℃未満の有機化合物をワックスと定義する。これに該当するものとしては、キャンデリラワックス、カルナウバワックス、ライスワックス、ホホバ油、木ロウ、ラノリン、ビーズワックス、モンタンワックス、セレシン、パラフィンワックス、マイクロクリスタリンワックス、硬化ひまし油などがある。これらのワックスは、１種又は２種以上を使用することができる。
(wax)
The wax is solid at normal temperature and does not have a clear definition. However, in the present embodiment, an organic compound that is solid at normal temperature (about 20 to 35 ° C.) and has a melting point of less than 100 ° C. is defined as wax. Define. Applicable examples include candelilla wax, carnauba wax, rice wax, jojoba oil, wood wax, lanolin, bees wax, montan wax, ceresin, paraffin wax, microcrystalline wax, and hardened castor oil. These waxes can be used alone or in combination of two or more.
（油脂組成物の組み合わせ）
乾性油、半乾性油、ワックスの組み合わせは特に限定されるものではなく、多数存在する。これらは天産物を出発原料としているため、価格が状況により大きく変動するため、そのときの情勢に応じて変更することが望ましい。なかでも、乾燥作業時の適性の点から、乾性油が亜麻仁油、半乾性油が菜種油、ワックスがパラフィンワックスの組み合わせであることが好ましい。
(Combination of oil and fat composition)
A combination of drying oil, semi-drying oil and wax is not particularly limited, and there are many combinations. Since these products use natural products as starting materials, prices vary greatly depending on the situation, so it is desirable to change them according to the situation at that time. Among these, from the viewpoint of suitability during the drying operation, it is preferable that the drying oil is a combination of linseed oil, the semi-drying oil is rapeseed oil, and the wax is a paraffin wax.
（油脂組成物の配合比）
機械展張が可能な強度を保つためには、紙に含有させる油脂組成物中の乾性油、半乾性油、ワックスの配合割合が重要である。すなわち、その配合比（質量比）を乾性油：半乾性油：ワックス＝１．０：１．０以下：０．３以下とする。半乾性油とワックスの配合上限を超えると、乾燥工程においてひび割れ等の問題を引き起こす。乾性油：半乾性油：ワックス＝１．０：１．０以下：０．２以下であることがより好ましく、さらに好ましくは、乾性油：半乾性油：ワックス＝１．０：０．９以下：０．１５以下である。
(Fraction composition of oil and fat composition)
In order to maintain the strength at which mechanical stretching is possible, the blending ratio of the drying oil, semi-drying oil and wax in the oil and fat composition contained in the paper is important. That is, the blending ratio (mass ratio) is set to dry oil: semi-dry oil: wax = 1.0: 1.0 or less: 0.3 or less. Exceeding the upper limit of the semi-drying oil and wax causes problems such as cracking in the drying process. Dry oil: Semi-dry oil: Wax = 1.0: 1.0 or less: More preferably 0.2 or less, and still more preferably, Dry oil: Semi-dry oil: Wax = 1.0: 0.9 or less : 0.15 or less.
下限値は限定されるものではないが、その配合比（質量比）が乾性油：半乾性油：ワックス＝１．０：０．６以上：０．０３以上であることが好ましい。半乾性油とワックスの配合率が０に近づくほど機械的展張の強度が低下することから、実用に好適な下限値として上記のとおり設定することが好ましい。紙への塗布状況（含有量）によっても多少差異が出る。乾性油：半乾性油：ワックス＝１．０：０．６以上：０．０５以上であることがより好ましく、さらに好ましくは、乾性油：半乾性油：ワックス＝１．０：０．７以上：０．０７以上である。 Although a lower limit is not limited, It is preferable that the compounding ratio (mass ratio) is drying oil: semi-drying oil: wax = 1.0: 0.6 or more: 0.03 or more. Since the strength of mechanical stretching decreases as the blending ratio of semi-drying oil and wax approaches 0, it is preferable to set the lower limit value suitable for practical use as described above. There are some differences depending on the application status (content) on paper. Drying oil: Semi-drying oil: Wax = 1.0: 0.6 or more: More preferably 0.05 or more, more preferably drying oil: Semi-drying oil: Wax = 1.0: 0.7 or more : 0.07 or more.
以上より、乾性油１００質量部に対して、半乾性油が６０〜１００質量部、ワックスは３〜３０質量部の割合（質量比）とするとよい。その他、紙への着色として顔料などを若干使用してもよい。 From the above, it is preferable that the semi-drying oil is 60 to 100 parts by mass and the wax is 3 to 30 parts by mass (mass ratio) with respect to 100 parts by mass of the drying oil. In addition, some pigments may be used for coloring the paper.
（紙製農業用被覆材中の油脂組成物の含有量）
紙製農業用被覆材中の油脂組成物の含有量は、特に限定されるものではないが、紙の乾燥質量に対し２〜２０質量％であることが好ましく、２〜１０質量％であることがより好ましく、４〜８質量％であることが特に好ましい。紙製農業用被覆材中の油脂組成物の含有量が上記範囲にあると、被覆材が農作物の育成中に分解・劣化せずに被覆材としての機能を保持することができ、また、機械展張の作業性も良好なものとなる。厚く塗れば強度は向上するが、原紙そのものの質量が増大するため、作業性が悪くなってくる場合がある。
(Content of oil and fat composition in paper agricultural covering material)
The content of the oil / fat composition in the paper agricultural covering material is not particularly limited, but is preferably 2 to 20% by mass with respect to the dry mass of the paper, and 2 to 10% by mass. Is more preferable, and 4 to 8% by mass is particularly preferable. When the content of the oil / fat composition in the paper agricultural coating material is within the above range, the coating material can maintain its function as a coating material without being decomposed or degraded during the cultivation of agricultural products. The workability of the stretching is also good. If it is thickly coated, the strength is improved, but the mass of the base paper itself is increased, so that workability may be deteriorated.
ここで、含有とは、紙の表面に塗布する場合に限られない。すなわち、紙製農業用被覆材に油脂組成物を含有させる方法としては、含浸、塗布（塗工）、スプレー、印刷等が挙げられる。工業的には印刷あるいは含浸後乾燥させる工程を採用することが好ましい。 Here, “containing” is not limited to the case of coating on the surface of paper. That is, impregnation, application (coating), spraying, printing, etc. are mentioned as a method of making a paper agricultural covering material contain an oil and fat composition. Industrially, it is preferable to employ a step of drying after printing or impregnation.
油脂組成物は、紙の一部又は全体に含有させる。一部とは、特に土中に埋められる端部や土に接触する部分をいう。 The oil / fat composition is contained in a part or the whole of the paper. A part refers to an end part buried in the soil or a part in contact with the soil.
（紙）
使用可能な紙としては、いわゆる木材パルプを原料とする紙（セルロースを主体とする紙）であり、土中で分解可能な紙である。すなわち、木材パルプを原料とし、これを水に分散させて脱水、乾燥を経て繊維を絡ませたものを使用できる。例えば、クラフト紙、新聞紙、コート紙、上質紙、ケント紙、和紙、ケナフ紙などがあげられる。古紙パルプを用いてもよい。土中で分解されない合成樹脂系の接着剤で圧着した不織布などは農地で分解されないため望ましくない。
(paper)
Usable paper is paper made of so-called wood pulp (paper mainly made of cellulose), and is paper that can be decomposed in soil. That is, it is possible to use wood pulp as a raw material, which is dispersed in water, dehydrated and dried, and entangled with fibers. Examples include kraft paper, newspaper, coated paper, high-quality paper, Kent paper, Japanese paper, kenaf paper, and the like. Waste paper pulp may be used. Non-woven fabrics and the like that are pressure-bonded with a synthetic resin-based adhesive that is not decomposed in soil are not desirable because they are not decomposed in farmland.
〔本発明の実施の形態の効果〕
本発明の実施の形態によれば、以下の効果を奏する。
（１）農作物の育成中は分解・劣化しにくいため、農作物の育成中（例えば１ヶ月〜３ヶ月）は被覆材としての機能が保持できる。
（２）作物の収穫後には土中に埋めれば分解するため、農作物の収穫後の回収や廃棄が不要であり、回収作業の負担を減らせる。
（３）機械展張が可能な伸張性・強度を有する紙製農業用被覆材を提供できる。乾性油、半乾性油、ワックスの比率を調整することで、機械による展張の強度を調整でき、かつ使用中の土との接触においても一定の間、強度を持続できるため、実際の農業現場での使用に耐えられる。
（４）紙をベースに、乾性油、半乾性油およびワックスを含有させるものであるため、生分解性の被覆材を比較的安価に提供できる。
（５）安全性が高い乾性油、半乾性油、ワックスを使用し、これを紙の表面に塗布することで土との接触による分解を遅らせ、かつ雨を弾くことで雨滴による崩壊を防ぐ効果も得ることができる。
（６）流通上の在庫保管が容易な農業用被覆材を提供できる。
[Effect of the embodiment of the present invention]
According to the embodiment of the present invention, the following effects can be obtained.
(1) Since it is difficult to be decomposed and deteriorated during the cultivation of agricultural products, the function as a covering material can be maintained during the cultivation of the agricultural products (for example, 1 month to 3 months).
(2) After the crop is harvested, it will be decomposed if buried in the soil, so there is no need for post-harvest collection and disposal of the crop, reducing the burden of collection work.
(3) A paper agricultural covering material having extensibility and strength capable of being mechanically stretched can be provided. By adjusting the ratio of drying oil, semi-drying oil, and wax, the strength of mechanical extension can be adjusted, and the strength can be maintained for a certain period even in contact with the soil during use. Can withstand the use of
(4) Since a drying oil, a semi-drying oil and a wax are contained on a paper base, a biodegradable coating material can be provided at a relatively low cost.
(5) Uses highly safe drying oil, semi-drying oil, and wax, and applies them to the surface of paper to delay decomposition due to contact with the soil and to prevent raindrops from collapsing by rain. Can also be obtained.
(6) It is possible to provide an agricultural covering material that can be easily stocked for distribution.
（実施例１〜４）
表１に示す配合の油脂組成物を含有させた実施例１〜４の紙製農業用被覆材を以下のとおり製造した。
(Examples 1-4)
The paper-made agricultural coating | covering materials of Examples 1-4 which contained the oil-fat composition of the mixing | blending shown in Table 1 were manufactured as follows.
表１の配合の油脂組成物（塗布油）をタンクにて調合し、それぞれのワックスの融点以上に加熱溶解後、均一となるまでよく混合した。乾性油、半乾性油、ワックスの配合比率はそれぞれ、乾性油１００質量部に対し、半乾性油８０質量部、ワックス１０質量部とした。 The oil and fat composition (coating oil) having the composition shown in Table 1 was prepared in a tank, heated and dissolved above the melting point of each wax, and then mixed well until uniform. The blending ratio of the drying oil, the semi-drying oil and the wax was 80 parts by mass of the semi-drying oil and 10 parts by mass of the wax with respect to 100 parts by mass of the drying oil.
この油脂組成物をクラフト紙の両面に含浸後、乾燥した。本実施例１〜４では、原紙に対して油脂組成物を５．０質量％（実施例１）、６．５質量％（実施例２）、４．８質量％（実施例３）、５．６質量％（実施例４）含ませるようにした。 This oil and fat composition was impregnated on both sides of kraft paper and then dried. In Examples 1-4, the oil and fat composition was 5.0% by mass (Example 1), 6.5% by mass (Example 2), 4.8% by mass (Example 3), and 5% with respect to the base paper. 6 mass% (Example 4) was included.
（比較例１）
表１に示す配合の油脂組成物を含有させた比較例１の紙製農業用被覆材を以下のとおり製造した。
(Comparative Example 1)
The paper agricultural covering material of Comparative Example 1 containing the oil and fat composition having the composition shown in Table 1 was produced as follows.
比較例１では、不乾性油である椿油とカルナウバワックスを混合したものをクラフト紙の両面に含浸後、乾燥した。椿油とカルナウバワックスの配合比率は、椿油を１８０質量部、カルナウバワックスを１０質量部とした。原紙に対して油脂組成物を５８．７質量％含ませた。 In Comparative Example 1, a mixture of non-drying oil candy oil and carnauba wax was impregnated on both sides of kraft paper and then dried. The blending ratio of cocoon oil and carnauba wax was 180 parts by mass of cocoon oil and 10 parts by mass of carnauba wax. The fat and oil composition was included in the base paper in an amount of 58.7% by mass.
しかしながら、比較例１の紙製農業用被覆材は、その後の処理工程においてまったく乾燥することはなく、紙の表面から油が滲み、そのまま巻き取られることで油が貼り付いてしまった。これでは展張用機械向けに巻き取ることもできず、とても使用に耐え得るものとはならなかった。 However, the paper agricultural covering material of Comparative Example 1 did not dry at all in the subsequent processing steps, and the oil oozed from the surface of the paper and wound up as it was, so that the oil adhered. This could not be rolled up for a spreading machine and was not very durable.
表１において、サフラワー油（日清オイリオグループ株式会社製,商品名：日清べに花油）、亜麻仁油（日清オイリオグループ株式会社製,商品名：Ｎ／Ｂアマニ油）、大豆油（日清オイリオグループ株式会社製,商品名：大豆白絞油（Ｓ））、桐油（コスモ油化株式会社製,商品名：桐油）、綿実油（日清オイリオグループ株式会社製,商品名：日清サラダ油クリーム綿実）、菜種油（日清オイリオグループ株式会社製,商品名：菜種白絞油（Ｓ））、コーン油（日清オイリオグループ株式会社製,商品名：日清コーン油）、米油（日清オイリオグループ株式会社製,商品名：日清こめ白絞油）、椿油（大島椿株式会社製,商品名：椿てんぷら油）を用いた。 In Table 1, safflower oil (manufactured by Nissin Oilio Group, trade name: Nisshinbeni Flower Oil), flaxseed oil (manufactured by Nisshin Oilio Group, trade name: N / B flaxseed oil), soybean oil (Nisshin Oil Product name: Soybean White Oil (S)), Tung Oil (Cosmo Oil Chemical Co., Ltd., Product Name: Tung Oil), Cottonseed Oil (Nisshin Oilio Group, Product Name: Nisshin Salad Oil) Cream cottonseed), rapeseed oil (manufactured by Nisshin Oil Rio Group, trade name: rapeseed white squeezed oil (S)), corn oil (manufactured by Nisshin Oillio Group, trade name: Nisshin Corn Oil), rice oil ( Nisshin Oilio Group Co., Ltd., trade name: Nisshin Kome white squeezed oil) and cocoon oil (trade name: Sakai tempura oil) were used.
（実施例５〜６、比較例２〜３）
次に、表１における実施例２の組み合わせ（乾性油：亜麻仁油、半乾性油：菜種油、ワックス：パラフィンワックス）において、その配合比率を表２に示すように変化させて、実施例５〜６及び比較例２〜３の紙製農業用被覆材を上記実施例及び比較例と同様にして製造した。
(Examples 5-6, Comparative Examples 2-3)
Next, in the combinations of Example 2 in Table 1 (drying oil: linseed oil, semi-drying oil: rapeseed oil, wax: paraffin wax), the blending ratio was changed as shown in Table 2, and Examples 5 to 6 were changed. And the paper agricultural coating | covering material of Comparative Examples 2-3 was manufactured like the said Example and comparative example.
比較例２は、半乾性油とワックス配合率が不十分な例（ここでは不使用の例）であり、乾性油のみを含浸させた紙製農業用被覆材である。また、比較例３は、半乾性油とワックス配合率が多すぎる例である。 Comparative Example 2 is an example in which the mixing ratio of semi-drying oil and wax is insufficient (here, an example of non-use), and is a paper agricultural covering material impregnated with only drying oil. Moreover, the comparative example 3 is an example with too many semi-drying oil and wax compounding ratios.
（強度の評価）
表３は、上記実施例及び比較例で製造した紙製農業用被覆材について、その強度を日本工業規格：Ｊａｐａｎ Ｉｎｄｕｓｔｒｉａｌ Ｓｔａｎｄａｒｄ（ＪＩＳ法）に則り分析した結果である。強度は、引張強度（縦）（ＪＩＳ Ｐ８１１３）、湿潤引張強度（縦）（ＪＩＳ Ｐ８１３５）、引裂強度（縦）（ＪＩＳ Ｐ８１１６）、破裂強度（ＪＩＳ Ｐ８１１２）についてそれぞれ測定を行なった。
(Strength evaluation)
Table 3 shows the results of analyzing the strength of the paper-made agricultural covering materials produced in the above Examples and Comparative Examples in accordance with Japanese Industrial Standard: Japan Industrial Standard (JIS method). The strength was measured for tensile strength (longitudinal) (JIS P8113), wet tensile strength (longitudinal) (JIS P8135), tear strength (longitudinal) (JIS P8116), and burst strength (JIS P8112).
なお、原紙はすべて同じ紙を使用しているが、含有させた油脂組成物の量が異なるため、各強度は、坪量（単位面積あたりの質量）で換算した値とした。また、各強度は、原紙の生データの数値を１００とし、これに対する数値で表している。 In addition, although the same paper is used for all the base papers, since the amount of the oil and fat composition contained is different, each strength is a value converted by basis weight (mass per unit area). Each strength is represented by a numerical value corresponding to 100 as the raw data value of the raw paper.
その結果、表３に示したとおり、実施例の紙製農業用被覆材は、屋外での栽培時における雨や風に対する耐久性の指標として重要である湿潤引張強度が、すべて原紙を上回り、５倍以上の数値になる紙製農業用被覆材もあった。また、その他の強度についても、実施例の紙製農業用被覆材は、原紙の強度を上回るか原紙の強度と同程度であり、農業用被覆材として用いるのに問題ない強度であった。
以上のことから、実施例の紙製農業用被覆材は、屋外の環境下で栽培する場合に極めて有用であることが分かる。
As a result, as shown in Table 3, the paper agricultural covering materials of the Examples all have wet tensile strengths that are important as indicators of durability against rain and wind during outdoor cultivation, exceeding the base paper. Some paper agricultural coverings were more than doubled. In addition, with respect to other strengths, the paper agricultural covering material of the example was stronger than the strength of the base paper or approximately the same as the strength of the base paper, and was strong enough to be used as an agricultural covering material.
From the above, it can be seen that the paper agricultural covering material of the example is extremely useful when cultivated in an outdoor environment.
これに比べて、半乾性油とワックスを不使用の（配合率が不十分な）比較例２では、表３に示したとおり、引裂強度が著しく低下しており、原紙に比べて半分以下の数値しか得られなかった。引裂強度が低下すると、機械で展張ことができず、張れたとしても風の影響ですぐに全体が裂けてしまう大きな欠陥を呈することとなる。また、半乾性油とワックス配合率が多すぎる比較例３でも、引裂強度が著しく低下しており、機械で展張できず、さらに表面に形成された膜がしわが寄ったようになり、ひび割れも認められた。 Compared to this, in Comparative Example 2 that does not use semi-drying oil and wax (insufficient blending ratio), as shown in Table 3, the tear strength is remarkably reduced, which is less than half that of the base paper. Only numerical values were obtained. If the tear strength is lowered, it cannot be stretched by a machine, and even if it is stretched, it presents a large defect that is easily torn due to the wind. Further, in Comparative Example 3 in which the mixing ratio of the semi-drying oil and the wax is too large, the tear strength is remarkably reduced, the film cannot be stretched by a machine, and the film formed on the surface seems to be wrinkled. Admitted.
（実地試験）
実際の大根畑おいて、実施例２（実施例６）で製造した被覆材を使い、展張試験、播種から収穫までの栽培試験、土中での分解試験を行った。
(Field test)
In an actual radish field, using the coating material produced in Example 2 (Example 6), a spreading test, a cultivation test from sowing to harvesting, and a decomposition test in soil were performed.
大根畑おいて、マルチャーによる実施例２（実施例６）の被覆材の展張を行なったが、１００ｍ展張において一度も破れることなく展張が可能であった。 In the radish field, the coating material of Example 2 (Example 6) was stretched by Malchar, but it was possible to stretch without breaking even in 100m stretching.
また、実施例２（実施例６）の被覆材を使用し、播種から収穫まで６０日間大根の栽培を行ったが、図１（写真）にあるように収穫時まで問題なく雑草の生長を抑制し、かつ被覆材が破損しない状態で利用することが可能であった。 In addition, the radish was cultivated for 60 days from sowing to harvesting using the coating material of Example 2 (Example 6). As shown in FIG. 1 (photo), weed growth was suppressed without problems until harvesting. However, the coating material can be used without being damaged.
さらに、秋に大根を収穫した後、実施例２（実施例６）の被覆材を土中に埋めたところ、被覆材は分解され、春にはきれいになくなった。 Furthermore, after harvesting the radish in autumn, the covering material of Example 2 (Example 6) was buried in the soil. The covering material was decomposed and disappeared cleanly in the spring.
Claims (8)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006251750A JP4902303B2 (en) | 2006-09-15 | 2006-09-15 | Paper agricultural covering |
| CN200780034156XA CN101516179B (en) | 2006-09-15 | 2007-08-28 | Paper-made agricultural covering material |
| PCT/JP2007/066654 WO2008032563A1 (en) | 2006-09-15 | 2007-08-28 | Paper-made agricultural covering material |
| KR1020097004761A KR101353884B1 (en) | 2006-09-15 | 2007-08-28 | Paper-made agricultural covering material |
| TW096133908A TWI387435B (en) | 2006-09-15 | 2007-09-11 | Paper for agricultural use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006251750A JP4902303B2 (en) | 2006-09-15 | 2006-09-15 | Paper agricultural covering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2008067673A JP2008067673A (en) | 2008-03-27 |
| JP4902303B2 true JP4902303B2 (en) | 2012-03-21 |
Family
ID=39183627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006251750A Active JP4902303B2 (en) | 2006-09-15 | 2006-09-15 | Paper agricultural covering |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP4902303B2 (en) |
| KR (1) | KR101353884B1 (en) |
| CN (1) | CN101516179B (en) |
| TW (1) | TWI387435B (en) |
| WO (1) | WO2008032563A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625087B (en) * | 2015-12-22 | 2017-09-29 | 嘉兴学院 | Warm nursery paper and preparation method thereof |
| CN106376311A (en) * | 2016-08-25 | 2017-02-08 | 宁波黄金韵茶业科技有限公司 | Subsoil-free camellia sinensis short cutting cuttage seedling growing method |
| KR102321963B1 (en) | 2021-04-26 | 2021-11-04 | (주)세기에어시스템 | Covering materials for agriculture made of paper with superior strength and animal avoidance effect |
| SE545416C2 (en) * | 2021-12-22 | 2023-09-05 | Stora Enso Oyj | Composite products |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053935C (en) * | 1993-02-19 | 2000-06-28 | 武汉大学 | Method for preparation of high waterproof high strength regenerative cellulose membrane |
| US5672434A (en) * | 1995-08-10 | 1997-09-30 | Appleton Papers Inc. | Mulching composite |
| CN1124085A (en) * | 1995-08-25 | 1996-06-12 | 王兴斌 | Agricultural mulching film paper and its producing method |
| JP2000116249A (en) * | 1998-10-13 | 2000-04-25 | Oji Paper Co Ltd | Paper mulch sheet |
| JP2003047348A (en) * | 2001-08-01 | 2003-02-18 | Yokosawa Kinzoku Kogyo Kk | Mulch sheet for horticulture |
| KR100603073B1 (en) * | 2003-10-20 | 2006-07-20 | 에스케이케미칼주식회사 | Mulching-paper for agriculture and process of producing thereof |
| JP2006262723A (en) * | 2005-03-22 | 2006-10-05 | Chuetsu Pulp Kogyo Kk | Paper agricultural sheet |
-
2006
- 2006-09-15 JP JP2006251750A patent/JP4902303B2/en active Active
-
2007
- 2007-08-28 KR KR1020097004761A patent/KR101353884B1/en not_active IP Right Cessation
- 2007-08-28 WO PCT/JP2007/066654 patent/WO2008032563A1/en active Application Filing
- 2007-08-28 CN CN200780034156XA patent/CN101516179B/en not_active Expired - Fee Related
- 2007-09-11 TW TW096133908A patent/TWI387435B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| TWI387435B (en) | 2013-03-01 |
| CN101516179B (en) | 2011-08-24 |
| JP2008067673A (en) | 2008-03-27 |
| CN101516179A (en) | 2009-08-26 |
| KR20090055565A (en) | 2009-06-02 |
| KR101353884B1 (en) | 2014-01-20 |
| TW200830985A (en) | 2008-08-01 |
| WO2008032563A1 (en) | 2008-03-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Haapala et al. | Feasibility of paper mulches in crop production—a review | |
| JP4902303B2 (en) | Paper agricultural covering | |
| US8383247B2 (en) | Lightweight composite article with controlled biodegradation | |
| Shogren et al. | Field evaluation of watermelon grown on paper-polymerized vegetable oil mulches | |
| CA2495201A1 (en) | Biodegradable fibrous support for soil mulching | |
| KR101505936B1 (en) | Multifuntional Mulching Material and Method for Manufacturing Thereof | |
| EP2667701B1 (en) | Ground-cover mulch and method for manufacturing it | |
| HU215482B (en) | Covering material for agricultural and horticultural soil | |
| MX2007013587A (en) | Sheet for agricultural use. | |
| AU2161701A (en) | Liquid or semifluid self sustaining mulch for protecting crops | |
| EP3469888B1 (en) | Biodegradable mulching film | |
| WO2003084743A1 (en) | Treatment for enhancing landscaping materials | |
| JP4327655B2 (en) | Black paper mulch | |
| KR101346308B1 (en) | Biodegradable water-repellent emulsion composition for vegetables or fruits, preparation thereof and its use | |
| JP2013155116A (en) | Sheet for repelling mollusk belonging to gastropod | |
| KR102321963B1 (en) | Covering materials for agriculture made of paper with superior strength and animal avoidance effect | |
| JP2000116249A (en) | Paper mulch sheet | |
| CH678478A5 (en) | ||
| JP2005253454A (en) | Agricultural sheet | |
| EP3123851A1 (en) | Seed composite material and method for applying it to surfaces | |
| JP3075577U (en) | Multi-sheet made of paper | |
| US20060265948A1 (en) | Cellulose fiber cover sheet for application to sown seed for providing selectably advantageous growth conditions | |
| Korpela et al. | AGRIPAP–Executive summary | |
| WO2018182543A2 (en) | Soil covering material having structural layers | |
| WO2006008566A1 (en) | Protective coating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080125 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20090327 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20111213 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20111228 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 4902303 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20150113 Year of fee payment: 3 |
|
| 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 |
|
| 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 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313117 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| 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 |