JP2012224954A - Biodegradability twist yarn, method for producing the biodegradability twist yarn and agricultural crop net using the biodegradability twist yarn - Google Patents
Biodegradability twist yarn, method for producing the biodegradability twist yarn and agricultural crop net using the biodegradability twist yarn Download PDFInfo
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本発明は、土壌中において分解する生分解性撚糸、生分解性撚糸の製造方法及び生分解性撚糸を用いた農作物用ネットに関する。 The present invention relates to a biodegradable twisted yarn that decomposes in soil, a method for producing the biodegradable twisted yarn, and a net for agricultural products using the biodegradable twisted yarn.
従来より、農作物の蔓を絡ませつつ保持して蔓葉の成長を促す農作物用ネットが用いられている。この農作物用ネットの糸として、従来から合成樹脂製（ポリエチレン製）のネットが用いられている。しかしながら、合成樹脂製の農作物用ネットは、産業廃棄物であり、また農作物の収穫後に蔓葉が絡みついた状態のままでは焼却処分できないことから、一定期間土壌中で蔓葉を腐熟化させて除去し、その後、産業廃棄物として焼却処分している。 2. Description of the Related Art Conventionally, a crop net that promotes the growth of vine leaves by holding vines of crops while being entangled has been used. Conventionally, synthetic resin (polyethylene) nets have been used as the yarns for the crop nets. However, synthetic resin crop nets are industrial waste and cannot be incinerated if the vine leaves are intertwined after the crop is harvested. After that, it is incinerated as industrial waste.
従来の合成樹脂製の農作物用ネットの課題を解決するために、生分解性繊維からなるネットや、綿のみを用いたネットが、提案されている。生分解性繊維を用いたものとしては、例えば特許文献１に示されるようなものがある。特許文献１の生分解性繊維を用いた農作物用ネット（植物誘引ネット）は、生分解性繊維として、ポリ乳酸系モノフィラメントを用い、ポリ乳酸系モノフィラメントの相対粘度を適宜定めることで、生分解性を有し、充分な強度を有し、扱いやすさも兼ね備えたものとしている。 In order to solve the problems of conventional synthetic resin nets for crops, nets made of biodegradable fibers and nets using only cotton have been proposed. As what uses biodegradable fiber, there exists a thing as shown by patent document 1, for example. The crop net (plant attraction net) using the biodegradable fiber of Patent Document 1 uses a polylactic acid monofilament as the biodegradable fiber, and appropriately determines the relative viscosity of the polylactic acid monofilament, thereby biodegradable. It has sufficient strength and is easy to handle.
また、綿のみを用いたネットとしては、例えば特許文献２に示されるようなものがある。特許文献２の綿のみを用いた農作物用ネット（長芋用のネット）は、綿繊維を紐又は糸状に撚り合わせ、撚り合わせた紐又は糸を用いている。この長芋用のネットは、長芋の蔓及び枝葉等をネットから引き剥がすことなく他の堆肥材料と一緒に有機堆肥として利用できるものである。 Moreover, as a net using only cotton, for example, there is one as shown in Patent Document 2. A crop net (a long net) using only cotton of Patent Document 2 uses a string or a yarn in which cotton fibers are twisted into a string or yarn and twisted together. This net for long bean can be used as organic compost together with other composting materials without peeling off the long bean vine, branches and leaves from the net.
しかしながら、従来の合成樹脂製（ポリエチレン製）のネットは、農作物の収穫後の処分に困る一方、ポリ乳酸系モノフィラメントを用いた生分解性繊維を用いたネットは、堆肥化が可能なものの、堆肥化に１年以上の時間を要してしまい、必要に応じて産業廃棄物としての処分しているのが実情である。 However, conventional synthetic resin (polyethylene) nets are difficult to dispose of after harvesting crops, while nets using biodegradable fibers using polylactic acid monofilaments can be composted, but compost The actual situation is that it takes more than one year to convert to industrial waste.
また、綿のみを用いた農作物用ネットは、堆肥化は可能であるものの強度を充分に確保することが困難である。 Moreover, although the crop net using only cotton can be composted, it is difficult to ensure sufficient strength.
本発明は、このような事情に鑑みてなされたもので、土壌中における堆肥化が早く、農作物の蔓葉を保持するのに充分な強度を有する生分解性撚糸、生分解性撚糸の製造方法及び生分解性撚糸を用いた農作物用ネットを提供することにある。 The present invention has been made in view of the above circumstances, and is a biodegradable twisted yarn that has a sufficient strength to be quickly composted in the soil and retain the vine leaves of agricultural crops, and a method for producing the biodegradable twisted yarn And providing a net for agricultural products using biodegradable twisted yarn.
請求項１記載の生分解性撚糸は、綿繊維に対して竹を原料とする竹セルロース繊維を５重量％〜３０重量％を混紡した混紡糸を撚った撚糸であることを特徴とする。 The biodegradable twisted yarn according to claim 1 is a twisted yarn obtained by twisting a blended yarn obtained by blending 5% by weight to 30% by weight of bamboo cellulose fiber made of bamboo with respect to cotton fiber.
請求項２記載の生分解性撚糸は、綿繊維の綿番手が０．５番〜２番で繊維長が２５ｍｍ〜３５ｍｍで、竹セルロース繊維の繊度が０．８デシテックス〜１．７デシテックスで繊維長が３２ｍｍ〜４２ｍｍであることを特徴とする。 The biodegradable twisted yarn according to claim 2, wherein the cotton fiber count is 0.5 to 2, the fiber length is 25 mm to 35 mm, and the bamboo cellulose fiber fineness is 0.8 decitex to 1.7 decitex. The length is 32 mm to 42 mm.
請求項３記載の生分解性撚糸は、混紡糸を６本〜２４本撚って、繊度を３０００デシテックス〜５６００デシテックスとしたことを特徴とする。 The biodegradable twisted yarn according to claim 3 is characterized in that 6 to 24 mixed yarns are twisted and the fineness is set to 3000 dtex to 5600 dtex.
請求項４記載の生分解性撚糸は、混紡糸を２本〜１２本撚って第１の撚糸とし、さらに第１の撚糸を３本〜６本撚ったことを特徴とする。 The biodegradable twisted yarn according to claim 4 is characterized in that 2 to 12 blended yarns are twisted to form a first twisted yarn, and 3 to 6 twisted first twisted yarns are further twisted.
請求項５記載の生分解性撚糸の製造方法は、綿繊維に対して竹を原料とする竹セルロース繊維を５重量％〜３０重量％を混紡して混紡糸とし、１本の混紡糸を撚り、撚った混紡糸の２本〜１２本を撚って第１の撚糸とし、第１の撚糸の３本〜６本を撚ることを特徴とする。 The method for producing a biodegradable twisted yarn according to claim 5 is obtained by blending 5% to 30% by weight of bamboo cellulose fiber made of bamboo with cotton fiber into a blended yarn and twisting one blended yarn. Two to twelve twisted blended yarns are twisted to form a first twisted yarn, and three to six first twisted yarns are twisted.
請求項６記載の生分解性撚糸の製造方法は、綿繊維の綿番手が０．５番〜２番で繊維長が２５ｍｍ〜３５ｍｍで、竹セルロース繊維の繊度が０．８デシテックス〜１．７デシテックスで繊維長が３２ｍｍ〜４２ｍｍであることを特徴とする。 The method for producing a biodegradable twisted yarn according to claim 6 is characterized in that the cotton count of the cotton fiber is from 0.5 to 2, the fiber length is from 25 mm to 35 mm, and the fineness of the bamboo cellulose fiber is from 0.8 decitex to 1.7. The fiber length is 32 mm to 42 mm by decitex.
請求項７記載の生分解性撚糸を用いた農作物用ネットは、請求項１〜請求項４のいずれかに記載の生分解性撚糸を用いてなることを特徴とする。 The net for crops using the biodegradable twisted yarn according to claim 7 is characterized by using the biodegradable twisted yarn according to any one of claims 1 to 4.
請求項８記載の生分解性撚糸を用いた農作物用ネットは、請求項５又は請求項６記載の方法で製造された生分解性撚糸を用いてなることを特徴とする。 The net for crops using the biodegradable twisted yarn according to claim 8 is characterized by using the biodegradable twisted yarn produced by the method according to claim 5 or claim 6.
特許請求の範囲の発明によれば、土壌中における堆肥化が早く、農作物の蔓葉を保持するのに充分な強度を有する。 According to the claimed invention, composting in the soil is fast and has sufficient strength to hold the vine leaves of the crop.
以下、本発明の形態について図面を参照しながら具体的に説明する。本実施の形態における農作物用ネットは、長芋、キュウリ、さやえんどう、ゴウヤ等の蔓が伸びる農作物の蔓を絡ませつつ保持して蔓葉の成長を促すものである。 Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. The crop net in the present embodiment is intended to promote the growth of vine leaves by entwining and holding the vines of crops such as long bamboo shoots, cucumbers, pods, goya and the like.
農作物用ネットは、生分解性撚糸を使用して作られている。本実施例における生分解性撚糸は、綿繊維と竹を原料とする竹セルロール繊維とを混紡した混紡糸を撚った撚糸である。生分解性撚糸は、綿繊維に対して竹セルロール繊維を５重量％〜３０重量％を混紡した混紡糸を撚った撚糸である。生分解性撚糸の元となる混紡糸における綿繊維は、綿番手が０．５番〜２番相当の太さを有し、繊維長が２５ｍｍ〜３５ｍｍである。また、竹セルロース繊維は、繊度が０．８デシテックス〜１．７デシテックスで、繊維長が３２ｍｍ〜４２ｍｍである。 Crop nets are made using biodegradable twisted yarn. The biodegradable twisted yarn in this example is a twisted yarn obtained by twisting a blended yarn obtained by blending cotton fiber and bamboo cellulose fiber made of bamboo. The biodegradable twisted yarn is a twisted yarn obtained by twisting a blended yarn obtained by blending 5 to 30% by weight of bamboo cellulose fiber with cotton fiber. The cotton fiber in the blended yarn that is the source of the biodegradable twisted yarn has a cotton count of a thickness corresponding to 0.5 to 2 and a fiber length of 25 mm to 35 mm. Bamboo cellulose fibers have a fineness of 0.8 decitex to 1.7 decitex and a fiber length of 32 mm to 42 mm.
尚、竹セルロール繊維は、例えば、ビスコース法で製造されたレーヨンである。このビスコース法では、竹の植物原料をアルカリ（苛性ソーダ）及び二硫化炭素と反応させてアルカリ水溶液中に溶解し、これを口金から硫酸水溶液中に押しだし、引き延ばして繊維素（セルロース）を凝固・再生して製造される。 The bamboo cellulose fiber is, for example, rayon manufactured by the viscose method. In this viscose method, bamboo plant raw material is reacted with alkali (caustic soda) and carbon disulfide and dissolved in an aqueous alkali solution. This is extruded into a sulfuric acid aqueous solution from a base and stretched to coagulate and cellulose (cellulose). Reproduced and manufactured.
生分解性撚糸の製造方法としては、まず、上述の綿繊維と竹セルロース繊維とを混紡して混紡糸とし、１本の混紡糸を撚る。そして、撚った混紡糸の２本〜１２本を撚って第１の撚糸とし、さらに第１の撚糸の３本〜６本を撚る。結果として、生分解性撚糸は、混紡糸を６本〜２４本撚ったもので、繊度が３０００デシテックス〜５６００デシテックスになっている。 As a method for producing a biodegradable twisted yarn, first, the above-described cotton fiber and bamboo cellulose fiber are blended to form a blended yarn, and one blended yarn is twisted. Then, 2 to 12 twisted blended yarns are twisted to form a first twisted yarn, and further 3 to 6 first twisted yarns are twisted. As a result, the biodegradable twisted yarn is obtained by twisting 6 to 24 blended yarns, and has a fineness of 3000 decitex to 5600 decitex.
より具体的な混紡糸の撚り方は、１本の混紡糸を撚り数４８０Ｔ／Ｍ〜８００Ｔ／Ｍで撚り、そして、撚った混紡糸の２本〜１２本を撚り数２８０Ｔ／Ｍ〜７００Ｔ／Ｍで撚って第１の撚糸とする。さらに、第１の撚糸の３本〜６本を撚り数１００Ｔ／Ｍ〜４００Ｔ／Ｍで撚るようにする。 More specifically, the blended yarn is twisted by twisting one blended yarn at a twist number of 480 T / M to 800 T / M, and twisting two to twelve twisted blended yarns at a twist number of 280 T / M to 700 T. Twist at / M to make the first twisted yarn. Further, 3 to 6 first twisted yarns are twisted at a twist number of 100 T / M to 400 T / M.
以上のような本実施例の生分解性撚糸は、土壌中における堆肥化が早く、農作物の蔓葉を保持するのに充分な強度を有している。具体的には、生分解性撚糸の引張強度は、直線強力で約８０Ｎ以上、結節強力で約６０Ｎ以上である。また、本実施例の生分解性撚糸を用いた農作物用ネットを長芋の作付け用として用い、使用後の農作物用ネットを長芋の蔓葉が絡まった状態で一体として放置した場合、約半年の期間で生分解性撚糸及び蔓葉が原形をとどめないまでに腐敗が進み、堆肥化される。 The biodegradable twisted yarn of this example as described above is rapidly composted in the soil and has sufficient strength to hold the vine leaves of the crop. Specifically, the tensile strength of the biodegradable twisted yarn is about 80 N or more for linear strength and about 60 N or more for knot strength. In addition, when the crop net using the biodegradable twisted yarn of this example is used for planting the long bean and the crop net after use is left as a unit with the long bean vine leaves intertwined, the period of about half a year However, the biodegradable twisted yarn and the vine leaves are decayed until they do not retain their original shape, and are composted.
以上のように、本発明によれば、土壌中における堆肥化が早く、農作物の蔓葉を保持するのに充分な強度を有する生分解性撚糸、生分解性撚糸の製造方法及び生分解性撚糸を用いた農作物用ネットを提供することができる。 As described above, according to the present invention, biodegradable twisted yarns that are fast in composting in the soil and have sufficient strength to hold the vine leaves of agricultural crops, methods for producing biodegradable twisted yarns, and biodegradable twisted yarns A net for agricultural products using can be provided.
Claims (8)
綿繊維に対して竹を原料とする竹セルロース繊維を５重量％〜３０重量％を混紡した混紡糸を撚った撚糸であることを特徴とする生分解性撚糸。 In biodegradable twisted yarn that decomposes in the soil,
A biodegradable twisted yarn, which is a twisted yarn obtained by twisting a blended yarn obtained by blending 5 to 30% by weight of bamboo cellulose fiber made of bamboo with cotton fiber.
前記竹セルロース繊維の繊度が０．８デシテックス〜１．７デシテックスで繊維長が３２ｍｍ〜４２ｍｍであることを特徴とする請求項１記載の生分解性撚糸。 The cotton count of the cotton fiber is 0.5 to 2 and the fiber length is 25 mm to 35 mm.
The biodegradable twisted yarn according to claim 1, wherein the bamboo cellulose fiber has a fineness of 0.8 to 1.7 decitex and a fiber length of 32 to 42 mm.
綿繊維に対して竹を原料とする竹セルロース繊維を５重量％〜３０重量％を混紡して混紡糸とし、
１本の該混紡糸を撚り、
該撚った混紡糸の２本〜１２本を撚って第１の撚糸とし、
該第１の撚糸の３本〜６本を撚ることを特徴とする生分解性撚糸の製造方法。 In a method for producing a biodegradable twisted yarn that decomposes in soil,
A blend of 5% to 30% by weight of bamboo cellulose fiber made from bamboo with cotton fiber is used as a blended yarn.
Twist one blended yarn,
Twist 2 to 12 twisted blended yarns to form a first twisted yarn,
A method for producing a biodegradable twisted yarn comprising twisting three to six of the first twisted yarns.
前記竹セルロース繊維の繊度が０．８デシテックス〜１．７デシテックスで繊維長が３２ｍｍ〜４２ｍｍであることを特徴とする請求項５記載の生分解性撚糸の製造方法。 The cotton count of the cotton fiber is 0.5 to 2 and the fiber length is 25 mm to 35 mm.
The method for producing a biodegradable twisted yarn according to claim 5, wherein the fineness of the bamboo cellulose fiber is 0.8 dtex to 1.7 dtex and the fiber length is 32 mm to 42 mm.
請求項１〜請求項４のいずれかに記載の生分解性撚糸を用いてなることを特徴とする生分解性撚糸を用いた農作物用ネット。 In crop nets using biodegradable twisted yarn to entangle and hold crop vines,
A crop net using a biodegradable twisted yarn comprising the biodegradable twisted yarn according to any one of claims 1 to 4.
請求項５又は請求項６記載の方法で製造された生分解性撚糸を用いてなることを特徴とする生分解性撚糸を用いた農作物用ネット。 In crop nets using biodegradable twisted yarn to entangle and hold crop vines,
A crop net using a biodegradable twisted yarn, wherein the biodegradable twisted yarn produced by the method according to claim 5 or 6 is used.
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| CN103510244A (en) * | 2013-09-29 | 2014-01-15 | 吴江市凌通纺织整理有限公司 | Multifunctional kapok fiber fabric |
| CN105624870A (en) * | 2016-04-07 | 2016-06-01 | 南通双弘纺织有限公司 | Blended yarn of milk protein fibres, natural bamboo fibres and cotton fibres |
| CN107190381A (en) * | 2017-06-12 | 2017-09-22 | 湖南景竹新材料开发有限公司 | Polyimide fiber and bamboo fiber blended yarn and processing method, system and application |
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| JP2008138319A (en) * | 2006-12-01 | 2008-06-19 | Asahi Kasei Fibers Corp | Knitted fabric |
| JP2008306958A (en) * | 2007-06-13 | 2008-12-25 | Seiichi Goto | Agricultural net mixed with bamboo fiber |
| JP2009079321A (en) * | 2007-09-26 | 2009-04-16 | Unitika Textiles Ltd | Woven, knitted fabric of bamboo fiber |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008138319A (en) * | 2006-12-01 | 2008-06-19 | Asahi Kasei Fibers Corp | Knitted fabric |
| JP2008306958A (en) * | 2007-06-13 | 2008-12-25 | Seiichi Goto | Agricultural net mixed with bamboo fiber |
| JP2009079321A (en) * | 2007-09-26 | 2009-04-16 | Unitika Textiles Ltd | Woven, knitted fabric of bamboo fiber |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510244A (en) * | 2013-09-29 | 2014-01-15 | 吴江市凌通纺织整理有限公司 | Multifunctional kapok fiber fabric |
| CN105624870A (en) * | 2016-04-07 | 2016-06-01 | 南通双弘纺织有限公司 | Blended yarn of milk protein fibres, natural bamboo fibres and cotton fibres |
| CN107190381A (en) * | 2017-06-12 | 2017-09-22 | 湖南景竹新材料开发有限公司 | Polyimide fiber and bamboo fiber blended yarn and processing method, system and application |
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