JPH0376513A - Agricultural covering sheet - Google Patents
Agricultural covering sheetInfo
- Publication number
- JPH0376513A JPH0376513A JP1212193A JP21219389A JPH0376513A JP H0376513 A JPH0376513 A JP H0376513A JP 1212193 A JP1212193 A JP 1212193A JP 21219389 A JP21219389 A JP 21219389A JP H0376513 A JPH0376513 A JP H0376513A
- Authority
- JP
- Japan
- Prior art keywords
- melting point
- nonwoven fabric
- yarn
- denier
- thermoplastic
- 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
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 28
- 230000008018 melting Effects 0.000 claims abstract description 22
- 238000002844 melting Methods 0.000 claims abstract description 22
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 16
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 16
- 238000010030 laminating Methods 0.000 claims abstract description 6
- 239000000835 fiber Substances 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000077 insect repellent Substances 0.000 description 8
- -1 polyethylene Polymers 0.000 description 7
- 241000238631 Hexapoda Species 0.000 description 6
- 229920000728 polyester Polymers 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000002759 woven fabric Substances 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 244000233513 Brassica perviridis Species 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Landscapes
- Protection Of Plants (AREA)
- Greenhouses (AREA)
Abstract
Description
【発明の詳細な説明】 産業上の利用分野 本発明は農業用被覆シートに関するものである。[Detailed description of the invention] Industrial applications The present invention relates to agricultural covering sheets.
従来の技術
近年、無農薬栽培化の促進により防虫薬剤の散布が激減
している。このため、作物栽培上、防虫対策が必要であ
るが、従来では防虫用シートとして特に開発されたもの
は少なく、一般的には農業用の別の目的で使用されるも
のを利用しているにすぎない０例えばビニロン、ポリエ
ステル、フィルムスリットヤーンの寒冷紗など、デニー
ルにして５００デニ一ル以上のものが圧倒的に多い。Conventional technology In recent years, with the promotion of pesticide-free cultivation, the use of insect repellents has been drastically reduced. For this reason, insect repellent measures are necessary for crop cultivation, but until now there have been few specifically developed insect repellent sheets, and in general, materials used for other purposes for agriculture have been used. For example, vinylon, polyester, film slit yarn cheesecloth, etc. are overwhelmingly 500 denier or more.
発明が解決しようとする課題
しかしながら、上記した従来から使用されているシート
は厚みが大（０，３−以上）で、重く（５０ｇ ／ ａ
１以上）、価格が高いという問題があり、このようなシ
ートで作物を被覆するとシート内の温度が上昇し、特に
夏場において作物に高温障害が生じるという問題があっ
た。Problems to be Solved by the Invention However, the sheets conventionally used as described above are thick (0.3- or more) and heavy (50 g/a).
1 or higher), there is a problem that the price is high, and when crops are covered with such a sheet, the temperature inside the sheet rises, causing high temperature damage to the crops, especially in the summer.
本発明はこのような課題を解決するもので、防虫ｆｌに
優れて高温障害などがなく良好な作物を得ることができ
１作物の歩留を良くし、安価な農業用被覆シートを提供
することを目的とするものである。The present invention solves these problems, and provides an inexpensive agricultural covering sheet that has excellent insect repellency, can produce good crops without high-temperature damage, improves the yield of each crop, and provides an inexpensive agricultural covering sheet. The purpose is to
課題を解決するための手段
この課題を解決するために本発明は、高分子成分よりな
るデニールが０．１〜１５デニールの長繊維を単位面積
当り５〜３０ ｇ ／ ｎｆに堆積した不織布に、直径
が２００μｍ以上の熱可塑性糸条または幅が０．５ｍｍ
以上の熱可塑性フィルムスリットヤーンを少なくとも５
ｍｍ間隔に１本を経緯またはバイヤスに積層してなるも
のである。また本発明は、鞘が融点１１０℃〜１７０℃
の高分子成分、芯が鞘の融点より２０℃以上の融点の高
分子成分よりなるデニールが０．１〜１５デニールの長
繊維を単位面積当り５〜３０ｇ ／ ｒｄに堆積した不
織布に、表面の融点が１１０℃〜１７０℃である熱可塑
性の糸条またはフィルムスリットヤーンを経緯またはバ
イヤスに積層して熱融着してなるものである。Means for Solving the Problem In order to solve this problem, the present invention provides a nonwoven fabric in which long fibers of a polymeric component having a denier of 0.1 to 15 deniers are deposited at a density of 5 to 30 g/nf per unit area. Thermoplastic yarn with a diameter of 200 μm or more or a width of 0.5 mm
At least 5 thermoplastic film slit yarns of
It is made by laminating one wire at mm intervals in the warp and warp or bias. Further, in the present invention, the sheath has a melting point of 110°C to 170°C.
The surface of the nonwoven fabric is made by depositing long fibers with a denier of 0.1 to 15 deniers at 5 to 30 g/rd per unit area, the core of which is made of a polymer component whose melting point is 20°C or higher than the melting point of the sheath. It is made by laminating thermoplastic threads or film slit yarns having a melting point of 110° C. to 170° C. on the warp or bias and heat-sealing them.
作用
この構成により、防虫効果に優れ、また厚みが薄く１重
量も軽く安価で、しかも耐久性に優れた農業用被覆シー
トを提供することができる。また、本発明の農業用被覆
シートによれば高温障害などがなく、良好な作物を得る
ことができ、作物の歩留を良くすることができる。Function: With this configuration, it is possible to provide an agricultural covering sheet that has excellent insect repellent effects, is thin, weighs less than 1 ounce, is inexpensive, and has excellent durability. Further, according to the agricultural covering sheet of the present invention, there is no high temperature damage, good crops can be obtained, and the yield of crops can be improved.
実施例 以下１本発明の実施例について説明する。Example An embodiment of the present invention will be described below.
まず、第１実施例による農業用被覆シートは。First, the agricultural covering sheet according to the first embodiment.
高分子成分よりなるデニールがＯ０ｌ〜１５デニールの
長繊維を単位面積当り５〜３０ｇ／ｍ２に堆積した不織
布に、直径が２００μｍ以上の熱可塑性糸条または幅が
０．５ｍｍ以上の熱可塑性フィルムスリットヤーンを少
なくとも５ｍｍ間隔に１本を経緯またはバイヤスに積層
してなるものである。A thermoplastic yarn with a diameter of 200 μm or more or a thermoplastic film slit with a width of 0.5 mm or more is attached to a nonwoven fabric in which long fibers of a denier of 01 to 15 deniers made of a polymeric component are deposited at 5 to 30 g/m2 per unit area. It is made by laminating one yarn at intervals of at least 5 mm in the warp or bias.
そこで、不織布を高分子成分よりなる長繊維とした理由
は短繊維であると作物との接触で破れに対する抵抗性が
少なく、かつ天然繊維を使用しても短繊維と同様であっ
た。従って、不織布は高分子成分よりなり長繊維で構成
されるものに限られる１次に、不織布のデニールを０．
１〜１５デニールでかつ単位面積当りの重量を５〜３０
ｇ／ｎｒとしたのは防虫、耐久性、高温障害の防止の目
的を達成するために布織布に最適な空隙を得るためであ
る。Therefore, the reason why nonwoven fabrics are made of long fibers made of polymeric components is that short fibers have less resistance to tearing when coming into contact with crops, and even when natural fibers are used, they are similar to short fibers. Therefore, nonwoven fabrics are limited to those made of polymeric components and long fibers, and the denier of the nonwoven fabric is 0.
1 to 15 denier and weight per unit area of 5 to 30
The purpose of setting g/nr is to obtain the optimum voids in the woven fabric in order to achieve the objectives of insect repellency, durability, and prevention of high temperature damage.
デニールが０．１以下であれば繊維が細すぎて耐久性に
劣り、かつ夏場の高温障害が発生し、１５デニ一ル以上
であれば布織布の空、隙が大きくなり、防虫効果が劣る
。また、単位面積当りの重量が５ｇ／−以下であれば耐
久性に劣り、また３０ｇ／ｎｆ以上であればシートとし
て重く１作業性が悪いという問題や高温障害が発生し、
しかも高価格であるという問題がある。さらに上記不織
布に積層する直径が２０μｍ以上の熱可塑性糸条または
幅が０．５１以上の熱可塑性フィルムスリットヤーンを
少なくとも５ｍｍ間隔に１本を経緯またはバイヤスに積
層したのは、シート、が風や雨などで波びき、作物ある
いは支柱との接触で破れるのを防止し、耐久性のある農
業用被覆シートを得るためである。If the denier is less than 0.1, the fibers will be too thin and have poor durability, and high temperature problems will occur in the summer.If the denier is more than 15, the voids and gaps in the fabric will become large and the insect repellent effect will be poor. Inferior. In addition, if the weight per unit area is less than 5g/nf, the durability will be poor, and if it is more than 30g/nf, the sheet will be heavy and workability will be poor, and high temperature problems will occur.
Moreover, there is a problem in that it is expensive. Further, thermoplastic yarns with a diameter of 20 μm or more or thermoplastic film slit yarns with a width of 0.51 or more are laminated on the nonwoven fabric at least one strand at intervals of 5 mm in the warp or bias. This is to obtain a durable agricultural covering sheet that can be prevented from being torn by waves caused by rain or by contact with crops or pillars.
すなわち、糸条またはフィルムスリットヤーンを５−間
隔より狭く積層すると、シートの空隙が小さくなり、夏
場における作物の高温、障害が生じる。That is, if the yarn or film slit yarns are stacked at a spacing smaller than 5, the voids in the sheets become small, resulting in high temperatures and damage to crops in the summer.
従って積層する糸条またはフィルムスリットヤーンの間
隔は少なくとも５−以上でなければならないため、農業
用被覆シートとしての耐久性を考慮すると、糸条の場合
は直径が２００μｍ以上、フィルムスリットヤーンの場
合は幅が０．５−以上必要である。前記高分子成分より
なる長繊維不織布の組成はポリエチレン、ポリプロピレ
ン、ナイロン。Therefore, the spacing between the laminated yarns or film slit yarns must be at least 5 mm or more, so considering the durability as an agricultural covering sheet, the diameter of yarns should be 200 μm or more, and the diameter of film slit yarns should be 200 μm or more. The width must be 0.5- or more. The composition of the long fiber nonwoven fabric made of the polymer component is polyethylene, polypropylene, and nylon.
ポリエステルなどを用いることができ、また熱可塑性糸
条やフィルムスリットヤーンについても同様である。Polyester and the like can be used, and the same can be said of thermoplastic threads and film slit yarns.
次にこの第１実施例に基づく農業用被覆シートの具体例
について説明する。まず、ポリエステル３デニールの長
繊維をランダムに堆積し１部分熱固定により目付１０ｇ
／ｎｆの長繊維不織布を作成した。ポリエチレンよりな
るＩｌｌ麿のフィルムスリットヤーンを材料とし、経緯
に２０−間隔で作られたネットの片面にホットメルト接
着剤を付着せしめ、その後上記不織布と貼合せした。こ
うして得られたシートの強力は経方向５ ｋｇ ／ ５
ａｍ 、緯方向３ ｋｇ ／ ５ ｃｍであった。こ
のように作成されたシートを５月中旬播種の小松菜に被
覆し、７月の出荷迄被覆し続けたところ、小松菜には虫
による害はなくシートの破れもなく、かつ高温障害のな
い良好な作物が得られた。これに対し、シートで被覆し
ていない小松菜は虫による被害を受けた。前記シートの
強力と同程度の強力の不織布を同様に試作したところ、
４０ｇ／−に相当し、この不織布を用いて実験したとこ
ろ、小松菜は高温障害を受けた。Next, a specific example of the agricultural covering sheet based on this first embodiment will be explained. First, 3-denier polyester long fibers were randomly deposited and partially heat-set to give a fabric weight of 10 g.
/nf long fiber nonwoven fabric was prepared. A hot-melt adhesive was applied to one side of a net made of Illmaro film slit yarn made of polyethylene at 20-interval intervals, and then laminated with the above-mentioned nonwoven fabric. The strength of the sheet thus obtained is 5 kg/5 in the longitudinal direction.
am, and 3 kg/5 cm in the latitudinal direction. When the sheets prepared in this manner were used to cover Komatsuna sown in mid-May and continued to be covered until shipped in July, the Komatsuna was found to be in good condition with no insect damage, no tearing of the sheets, and no high-temperature damage. The crop was obtained. On the other hand, komatsuna that was not covered with a sheet was damaged by insects. When we similarly produced a nonwoven fabric with the same strength as the sheet, we found that
When an experiment was conducted using this nonwoven fabric, Japanese mustard spinach suffered from high temperature damage.
以上第１実施例について述べたが、さらに軽量かつ強力
で耐久性のあるシートを求めたところ。Although the first embodiment has been described above, we sought a sheet that is even lighter, stronger, and more durable.
次に述べる第２実施例の農業用被覆シートを作製するこ
とができた。An agricultural covering sheet according to the second example described below could be produced.
第２実施例の農業用被覆シートは、鞘が融点１１０℃〜
１７０℃の高分子成分、芯が鞘の融点より２０℃以上の
融点の高分子成分よりなるデニールが０．１〜１５デニ
ールの長繊維を単位面積当り５〜３０ｇ ／ ｍｌに堆
積した不織布に５表面の融点が１１０℃〜１７０℃であ
る熱可塑性の糸条またはフィルムスリットヤーンを経緯
またはバイヤスに積層して熱融着してなるものである。The agricultural covering sheet of the second example has a sheath with a melting point of 110°C
A non-woven fabric in which long fibers with a denier of 0.1 to 15 deniers are deposited at 5 to 30 g/ml per unit area, consisting of a polymer component with a core temperature of 170 °C and a core with a melting point of 20 °C or higher than the melting point of the sheath. It is made by laminating thermoplastic threads or film slit yarns with a surface melting point of 110° C. to 170° C. on the warp or bias and heat-sealing them.
この第２実施例において、接着は一般にホットメルトな
ど比較的低融点（８０℃〜９０℃）の接着剤を使用して
実施されるが、接着を強固に行なうために不織布と糸条
またはフィルムスリットヤーンとのそれぞれの接合面を
低融点高分子成分（１００℃〜１７０℃）とし、接合し
ない不織布を構成する長繊維の芯部分を前記低融点（１
００℃〜１７０℃）より２０℃以上の高分子成分として
あり、このようにして得られたシートの熱接着部分はプ
ラスチック化することなく優れた耐久性を備え、安定し
た強度が得られる。なお、この第２実施例において。In this second embodiment, bonding is generally carried out using an adhesive with a relatively low melting point (80°C to 90°C) such as hot melt, but in order to ensure strong adhesion, a nonwoven fabric and a thread or film slit are used. Each bonded surface with the yarn is made of a low melting point polymer component (100°C to 170°C), and the core portion of the long fibers constituting the nonwoven fabric that is not bonded is made of the low melting point (100°C to 170°C).
(00°C to 170°C) to 20°C or higher, and the heat-bonded portion of the sheet thus obtained has excellent durability without becoming plastic, and stable strength can be obtained. Note that in this second embodiment.
フィルムスリットヤーンを用いる場合は不織布と接する
表面の融点が１１０℃〜１７０℃であれば良く、裏面側
の融点はそれ以上であっても良い、また、同様に第２実
施例において、補強用の糸条は芯鞘構造のものも使用す
ることが可能で、不織布と接する鞘部の融点が１１０℃
〜１７０℃であれば良く、芯部の融点はそれ以上であっ
ても良い。When using a film slit yarn, the melting point of the surface in contact with the nonwoven fabric may be 110°C to 170°C, and the melting point of the back side may be higher than that. It is also possible to use threads with a core-sheath structure, and the melting point of the sheath part in contact with the nonwoven fabric is 110°C.
The melting point of the core may be 170° C. or higher.
次にこの第２実施例に基づく農業用被覆シートの具体例
について説明する。まず、鞘がポリエチレン、芯がポリ
エステルで、３デニールの長繊維をランダムに堆積し１
部分熱固定により目付１０゜／−の長繊維不織布を作成
した。上下が低密度ポリエチレン、中が高密度ポリエチ
レンの３層のフィルムを幅１ ｍ ／ ｍにカットし、
前記不織布にフィルムスリットヤーンを経緯格子状に２
０１間隔になるように熱融着せしめた。このシートの単
位重量当りの重量は１２ｇ／ｒｄで、強力は経方向６ｋ
ｇ１５３、緯方向４ ｋｇ ／ ５３であって、実施例
１より強力の高いものが得られた。このように作成され
たシートを実施例１と同様５月中旬播種の小松菜に被覆
し、７月の出荷迄被覆し続けたところ、小松菜には虫に
よる害はなく、シートの破れもなく。Next, a specific example of the agricultural covering sheet based on this second embodiment will be explained. First, the sheath is made of polyethylene, the core is made of polyester, and 3-denier long fibers are randomly deposited.
A long fiber nonwoven fabric with a basis weight of 10°/- was prepared by partial heat setting. A three-layer film with low-density polyethylene on the top and bottom and high-density polyethylene on the inside was cut to a width of 1 m/m.
The film slit yarn is arranged in a warp and warp grid pattern on the nonwoven fabric.
They were heat-sealed so that the spacing was 0.01. The weight per unit weight of this sheet is 12g/rd, and the strength is 6k in the longitudinal direction.
g153 and latitudinal direction 4 kg/53, which was stronger than Example 1. As in Example 1, the thus prepared sheet was applied to komatsuna sown in mid-May, and the covering was continued until shipment in July. As a result, the komatsuna was not harmed by insects and the sheet was not torn.
かつ高温障害のない良好な作物が得られ、使用後のシー
トの残存強力は実施例１より大きかった。In addition, good crops without high temperature damage were obtained, and the remaining strength of the sheet after use was greater than in Example 1.
ところで、上記具体例において、鞘としてポリエチレン
、芯としてポリエステルを使用しているが、鞘としてポ
リプロピレンなどを用い、芯としてポリプロピレンやナ
イロンなどを用いても良い。By the way, in the above specific example, polyethylene is used for the sheath and polyester is used for the core, but polypropylene or the like may be used for the sheath, and polypropylene, nylon, or the like may be used for the core.
また、作物への虫の飛来を防ぐシートとしては目金を１
■×１−程度の大きさにすれば良い、これを織編物で製
造しようとする場合、糸の太さは最低でも１５デニール
は必要で、防虫に必要な目金にするとシートは厚く、重
くなる。不織布であれば１５デニール以下で、防虫目的
の目金を５〜３０ｇ／ボで達成でき、シートは薄く、軽
いものとなる。In addition, as a sheet to prevent insects from flying to crops, one eyelet is used.
The size should be approximately 1- x 1. If you are going to manufacture this using woven or knitted fabric, the thickness of the thread must be at least 15 denier, and if you use it as an eyepiece for insect repellent, the sheet will be thick and heavy. Become. If it is a non-woven fabric, it can achieve the insect repellent weight of 5 to 30 g/bottle with a denier of 15 denier or less, and the sheet will be thin and light.
しかしながら、この不織布だけでは耐久性に劣るため、
上記実施例のように糸条またはフィルムスリットヤーン
を熱融着して補強している。また。However, this nonwoven fabric alone is inferior in durability, so
As in the above embodiments, the yarn or film slit yarn is thermally bonded and reinforced. Also.
シートの両端部の間隔を両端以外の部分より小さくして
も良く、これによりシートの両端を畑にビンなどで固定
するときの強度がより一層強くなる。The distance between both ends of the sheet may be smaller than that of the parts other than both ends, thereby further increasing the strength when securing both ends of the sheet to a field with a bottle or the like.
発明の効果
以上のように本発明によれば、防虫効果に優れ、また厚
みが薄く、゛重量も軽く安価で、しかも耐久性に優れた
農業用被覆シートを提供することができる。また、本発
明の農業用被覆シートによれば高温障害などがなく、良
好な作物を得ることができ、−作物の歩留を良くするこ
とができる。Effects of the Invention As described above, according to the present invention, it is possible to provide an agricultural covering sheet that has excellent insect repellent effects, is thin, lightweight, inexpensive, and has excellent durability. Moreover, according to the agricultural covering sheet of the present invention, good crops can be obtained without high temperature damage, and the yield of crops can be improved.
手続補正書（。え、
平成２年５月７日
１１件の表示
平成１年特許願第２１２１９３号
２、発明の名称
農業用被覆シート
３、補正をする者
事件との関係 特許出願人
名称 （４５Ｇ）ユニチカ株式会社
４、代 理 人
住所 ・５５０大阪府大阪市西区西本町１丁目１０番ｌ
Ｏ号０明細書の発明の詳細な説明の欄
■明細書第５頁第３行目
「布織布」とあるを「不織布」と訂正する。Procedural amendment (. May 7, 1990 11 indications 1999 Patent Application No. 212193 2, Name of the invention Agricultural covering sheet 3, Person making the amendment Relationship to the case Name of patent applicant ( 45G) Unitika Co., Ltd. 4, Agent Address: 1-10-1 Nishihonmachi, Nishi-ku, Osaka-shi, Osaka 550
Detailed Description of the Invention in Specification No. 0 ■ On page 5, line 3 of the specification, "woven fabric" is corrected to "non-woven fabric."
■明細書第５頁第６行目 「布織布」とあるを「不織布」と訂正する。■Page 5, line 6 of the specification Correct "woven fabric" to "non-woven fabric".
■明細書第５頁第１５行目 「波びき」とあるを「なびき」と訂正する。■Page 5, line 15 of the specification Correct the word ``Nabiki'' to ``Nabiki.''
■明細書第９頁第６行目 ｒｉｍ／＋ＪとあるをｒｌｍｍＪと訂正する。■Page 9, line 6 of the specification Correct rim/+J to rlmmJ.
平成 年 月 日 ６、補正により増加する発明の数 ７、補正の対象 明細書の発明の詳細な説明の欄Heisei Year Month Day 6. Number of inventions increased by amendment 7. Subject of correction Detailed description of the invention in the specification
Claims (1)
ルの長繊維を単位面積当り５〜３０ｇ／ｍ＾２に堆積し
た不織布に、直径が２００μｍ以上の熱可塑性糸条また
は幅が０．５ｍｍ以上の熱可塑性フィルムスリットヤー
ンを少なくとも５ｍｍ間隔に１本を経緯またはバイヤス
に積層してなる農業用被覆シート。 ２、鞘が融点１１０℃〜１７０℃の高分子成分、芯が鞘
の融点より２０℃以上の融点の高分子成分よりなるデニ
ールが０．１〜１５デニールの長繊維を単位面積当り５
〜３０ｇ／ｍ＾２に堆積した不織布に、表面の融点が１
１０℃〜１７０℃である熱可塑性の糸条またはフィルム
スリットヤーンを経緯またはバイヤスに積層して熱融着
してなる農業用被覆シート。[Scope of Claims] 1. Thermoplastic yarn with a diameter of 200 μm or more is added to a nonwoven fabric in which long fibers of a polymeric component with a denier of 0.1 to 15 denier are deposited at 5 to 30 g/m^2 per unit area. Alternatively, an agricultural covering sheet comprising thermoplastic film slit yarns each having a width of 0.5 mm or more and laminated at intervals of at least 5 mm in the warp or bias. 2. The sheath is made of a polymeric component with a melting point of 110°C to 170°C, and the core is made of a polymeric component with a melting point of 20°C or higher than the melting point of the sheath, and the denier is 0.1 to 15 denier. 5 long fibers per unit area.
The melting point of the surface of the nonwoven fabric deposited at ~30g/m^2 is 1
An agricultural covering sheet made by laminating thermoplastic threads or film slit yarns having a temperature of 10°C to 170°C in the warp or bias and heat-sealing them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1212193A JP2607693B2 (en) | 1989-08-18 | 1989-08-18 | Agricultural covering sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1212193A JP2607693B2 (en) | 1989-08-18 | 1989-08-18 | Agricultural covering sheet |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7097330A Division JP2667130B2 (en) | 1995-04-24 | 1995-04-24 | Agricultural covering sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0376513A true JPH0376513A (en) | 1991-04-02 |
| JP2607693B2 JP2607693B2 (en) | 1997-05-07 |
Family
ID=16618467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1212193A Expired - Fee Related JP2607693B2 (en) | 1989-08-18 | 1989-08-18 | Agricultural covering sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2607693B2 (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5663056A (en) * | 1979-10-25 | 1981-05-29 | Toray Industries | Polyester long fiber nonwoven fabric having excellent weather resistance |
| JPS5743102A (en) * | 1980-08-29 | 1982-03-11 | Kawasaki Heavy Ind Ltd | Waste heat recovery apparatus |
| JPS57111890U (en) * | 1980-12-27 | 1982-07-10 | ||
| JPS58147731U (en) * | 1982-03-29 | 1983-10-04 | 帝人株式会社 | breathable sheet |
| JPS6131662U (en) * | 1984-07-27 | 1986-02-26 | 日本電気株式会社 | Tweezers for gripping semiconductors |
| JPS61146152U (en) * | 1985-03-04 | 1986-09-09 | ||
| JPS6217486A (en) * | 1985-07-13 | 1987-01-26 | 住友電気工業株式会社 | Flexible tube |
| JPS6264783U (en) * | 1985-10-12 | 1987-04-22 |
-
1989
- 1989-08-18 JP JP1212193A patent/JP2607693B2/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5663056A (en) * | 1979-10-25 | 1981-05-29 | Toray Industries | Polyester long fiber nonwoven fabric having excellent weather resistance |
| JPS5743102A (en) * | 1980-08-29 | 1982-03-11 | Kawasaki Heavy Ind Ltd | Waste heat recovery apparatus |
| JPS57111890U (en) * | 1980-12-27 | 1982-07-10 | ||
| JPS58147731U (en) * | 1982-03-29 | 1983-10-04 | 帝人株式会社 | breathable sheet |
| JPS6131662U (en) * | 1984-07-27 | 1986-02-26 | 日本電気株式会社 | Tweezers for gripping semiconductors |
| JPS61146152U (en) * | 1985-03-04 | 1986-09-09 | ||
| JPS6217486A (en) * | 1985-07-13 | 1987-01-26 | 住友電気工業株式会社 | Flexible tube |
| JPS6264783U (en) * | 1985-10-12 | 1987-04-22 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2607693B2 (en) | 1997-05-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |