WO2014046070A1 - Matériel de recouvrement à usage agricole, et son procédé de production - Google Patents

Matériel de recouvrement à usage agricole, et son procédé de production Download PDF

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Publication number
WO2014046070A1
WO2014046070A1 PCT/JP2013/074978 JP2013074978W WO2014046070A1 WO 2014046070 A1 WO2014046070 A1 WO 2014046070A1 JP 2013074978 W JP2013074978 W JP 2013074978W WO 2014046070 A1 WO2014046070 A1 WO 2014046070A1
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WO
WIPO (PCT)
Prior art keywords
nonwoven fabric
covering material
agricultural
mass
agricultural covering
Prior art date
Application number
PCT/JP2013/074978
Other languages
English (en)
Japanese (ja)
Inventor
市川　太郎
武 津田
Original Assignee
三井化学株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 三井化学株式会社 filed Critical 三井化学株式会社
Priority to KR1020157007773A priority Critical patent/KR101778415B1/ko
Priority to JP2014536848A priority patent/JP5684436B2/ja
Priority to CN201380047995.0A priority patent/CN104640438B/zh
Publication of WO2014046070A1 publication Critical patent/WO2014046070A1/fr

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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
    • A01G13/0262—Mulches, i.e. covering material not-pre-formed in mats or sheets
    • 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
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/14—Greenhouses
    • A01G9/1438—Covering materials therefor; Materials for protective coverings used for soil and plants, e.g. films, canopies, tunnels or cloches
    • 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
    • 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
    • A01G22/00—Cultivation of specific crops or plants not otherwise provided for
    • 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
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/22—Shades or blinds for greenhouses, or the like
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/007—Addition polymers
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
    • D04H3/147—Composite yarns or filaments
    • 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
    • A01G13/0231—Tunnels, i.e. protective full coverings for rows of plants
    • 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

Definitions

  • the present invention relates to an agricultural coating material comprising a nonwoven fabric of a propylene-based polymer composition, and in particular, agriculture suitable for outdoor cultivation, tunnel cultivation, house cultivation use, and direct application (solid application) excellent in durability and crop growth.
  • the present invention relates to a coating material and a manufacturing method thereof.
  • Agricultural coatings are widely used to protect crops from changes in the external environment and help them grow. Broadly divided into agricultural coverings, there are films and non-woven fabrics, which are used according to their characteristics.
  • Agricultural coverings made of film have high barrier properties and high transparency (or high light-blocking properties) instead of low or low breathability.
  • warm insulation greenhouse cultivation
  • fruit It is used for applications such as rainwater infiltration suppression, weed overgrowth suppression, and prevention of insect pests.
  • Patent Document 1 Japanese Utility Model Publication No. 4-8769 discloses a non-woven fabric made of hydrophobic fibers such as polypropylene fibers of 6 denier or more and having a basis weight of 10 to 30 g / m 2 and a light transmittance of 85% or more.
  • An agricultural covering material for solid hanging has been proposed.
  • Agricultural coating materials made of polypropylene fiber nonwoven fabric are excellent in productivity, strength, etc., but depending on the usage situation, durability may be insufficient, and agricultural coating materials with higher durability are required. .
  • the nonwoven fabric itself may be destroyed due to natural deterioration due to long-term use of agricultural coverings made of nonwoven fabric, external loads from wind and rain during use, and rubbing with leaves of vegetables in use. It has become an issue.
  • a phenomenon is observed in which the hot embossed portion (thermocompression bonding portion) of the nonwoven fabric is unwound and the filaments of the long fibers constituting the nonwoven fabric are loosened.
  • the strength of the nonwoven fabric itself decrease, but it also causes a big problem that the unwound yarn is caught inside vegetables, especially lettuce that forms a head, and is found as a foreign object at the final consumption. .
  • the object of the present invention is to develop an agricultural covering material that is superior in durability, such as yarn-scratching resistance, and is excellent in the growth of agricultural products such as vegetables.
  • Agricultural coating material comprising a nonwoven fabric obtained from the propylene-based polymer composition and a method for producing the same.
  • the agricultural covering material of the present invention is excellent in durability such as yarn resistance and waterproofness, has breathability and heat retention, and is waterproof while maintaining sufficient light transmittance to maintain the growth and visibility of crops.
  • the harvest time of crops is increased, the yield is increased, the crops are protected from cold damage, the poor growth of the chiefs is eliminated, the crops are protected from floods such as rainwater, and the arrival of pests. be able to.
  • the propylene polymer (A) which is the main component of the propylene polymer composition that is the raw material of the nonwoven fabric constituting the agricultural coating material of the present invention, usually has a melting point (Tm) of 155 ° C. or higher, preferably 157 to A propylene homopolymer in the range of 165 ° C. or a propylene and a small amount of ethylene, 1-butene, 1-pentene, 1-hexene, 1-octene, 4-methyl-1-pentene, etc.
  • Tm melting point
  • Polymers mainly composed of propylene such as a copolymer with one or two or more ⁇ -olefins of 2 to 8 (excluding carbon number 3), preferably 2 to 8 (excluding carbon number 3).
  • a homopolymer of propylene is preferable.
  • the melt flow rate (MFR 230 : ASTM D-1238, 230 ° C., load 2160 g) is not particularly limited. Is usually in the range of 1 to 500 g / 10 minutes, preferably 5 to 200 g / 10 minutes, more preferably 10 to 100 g / 10 minutes. When a melt-blown nonwoven fabric is used, usually 10 to 3000 g / 10 minutes, Preferably, it is in the range of 50 to 2000 g / 10 min, more preferably 100 to 1000 g / 10 min.
  • the ratio Mw / Mn of the weight average molecular weight (Mw) and the number average molecular weight (Mn) of the propylene polymer according to the present invention is usually 1.5 to 5.0.
  • the range of 1.5 to 4.5 is more preferable in that a fiber having good spinnability and particularly excellent fiber strength can be obtained.
  • Mw and Mn can be measured by a known method by GPC (gel permeation chromatography).
  • the ethylene-based polymer (B) which is another component of the propylene-based polymer composition that is the raw material of the nonwoven fabric constituting the agricultural coating material of the present invention, is an ethylene homopolymer or ethylene and a small amount of propylene, 1 High pressure low density polyethylene, linear low density polyethylene (so-called LLDPE), medium density polyethylene (copolymers with ⁇ -olefins such as butene, 1-hexene, 4-methyl-1-pentene and 1-octene) Polymers mainly composed of ethylene such as so-called MDPE and high-density polyethylene (so-called HDPE).
  • LLDPE linear low density polyethylene
  • HDPE high-density polyethylene
  • the ethylene polymer (B) according to the present invention has a density of 0.94 to 0.97 g / cm 3 , more preferably 0.95 to 0.97 g / cm 3 from the viewpoint of fiber spinnability and strength.
  • High density polyethylene (HDPE) in the range is preferred.
  • the melt flow rate (MFR 190 : ASTM D 1238, 190 ° C., load 2160 g) is particularly limited. Usually, it is in the range of 0.1 to 100 g / 10 min, more preferably 0.5 to 50 g / 10 min, still more preferably 1 to 30 g / 10 min, most preferably 2 to 10 g / 10 min. .
  • the propylene polymer composition used as the raw material for the nonwoven fabric constituting the agricultural coating material of the present invention comprises 90 to 98% by mass of the propylene polymer (A), preferably 92 to 97% by mass, and the ethylene polymer weight.
  • (B) 10-2% by mass, preferably 8-3% by mass [provided that (A) + (B) 100% by mass.
  • the composition is 90 to 98% by mass of the propylene polymer (A), preferably 92 to 97% by mass, and the ethylene polymer weight.
  • the composition is 90 to 98% by mass of the propylene polymer (A), preferably 92 to 97% by mass, and the ethylene polymer weight.
  • the resulting nonwoven fabric has insufficient durability (such as bonding strength of a heat embossed portion (also referred to as a thermocompression bonding portion)).
  • the nonwoven fabric is used as an agricultural covering material, the improvement of crop growth is not sufficient.
  • the propylene-based polymer composition according to the present invention includes a colorant, an antioxidant, a weathering stabilizer, a light-resistant stabilizer, an anti-blocking agent, a lubricant, a nucleating agent, a pigment, and a softening agent as long as the object of the present invention is not impaired.
  • Various known additives such as agents, hydrophilic agents, water repellents, auxiliaries, water repellents, fillers, antibacterial agents, agricultural chemicals, insect repellents, and drugs may be added.
  • it is effective to add an antioxidant, a weather stabilizer, a light stabilizer, and a pigment that affects the growth activity of plants when used outdoors.
  • the agricultural covering material of this invention consists of a nonwoven fabric obtained from the said propylene-type polymer composition.
  • nonwoven fabric used for the agricultural covering material of the present invention various known nonwoven fabrics such as a short fiber nonwoven fabric and a long fiber nonwoven fabric can be used.
  • a nonwoven fabric composed of long fibers and a spunbond nonwoven fabric are transparent and heat retaining properties of the nonwoven fabric. In terms of balance, flexibility, light weight, and low damage to vegetables.
  • covering material of this invention consists of the nonwoven fabric obtained from the said propylene-type polymer composition
  • covering material of this invention is the said propylene in the range which does not impair the objective of this invention.
  • other fibers such as fibers obtained from the propylene polymer (A) alone, or fibers obtained from other olefin polymers, polyesters, thermoplastic elastomers, etc. May be a non-woven fabric made of mixed fibers.
  • the fiber constituting the nonwoven fabric which is the agricultural coating material of the present invention is a single fiber made of the propylene polymer composition
  • the propylene heavy polymer is used within the range not impairing the object of the present invention.
  • the composite fiber which has a side-by-side and core-sheath structure containing a union composition may be sufficient.
  • the cross-sectional shape of the fibers forming the nonwoven fabric may be a round shape, a star shape, a polygonal shape such as a triangular shape, a square shape, or a pentagonal shape, an elliptical shape, or a hollow shape.
  • the agricultural coating material of the present invention usually has a basis weight of 10 to 50 g / m 2 , preferably 10 to 30 g / m 2 , more preferably 13 to 30 g / m 2 , and usually has a light transmittance of 70% or more. Preferably, it is 75% or more, more preferably 80% or more, the fiber diameter is usually in the range of 10 to 50 ⁇ m, preferably 13 to 40 ⁇ m, and the yarn fray durability is usually 12 times or more, preferably 14 times or more. is there.
  • the agricultural covering material of the present invention preferably has a thermocompression bonding part.
  • the thermocompression bonding part is preferably partially thermocompression bonded in an area ratio of 5 to 30%, preferably 5 to 20%.
  • the strength and elongation of the non-woven fabric constituting the agricultural covering material of the present invention is such that the MD (machine direction) strength is sufficient to withstand the workability at the time of laying and detaching and various external and internal environments during use. It is preferable that 20N or more, CD (lateral direction) strength is 10N or more, MD elongation is 50% or more, and CD elongation is 50% or more. More preferably, the MD strength is 25N or more, the CD strength is 10N or more, the MD elongation is 70% or more, and the CD elongation is 70% or more. If the strength and elongation are less than the above, it is not preferable because holes are easily formed or broken in the nonwoven fabric laminate.
  • melt blown nonwoven fabric wet nonwoven fabric, dry nonwoven fabric, dry pulp nonwoven fabric, flash spinning nonwoven fabric, spread nonwoven fabric, It may be combined with a film or the like.
  • a laminate of a meltblown nonwoven fabric layer and a spunbond nonwoven fabric is preferable, and a nonwoven fabric laminate in which the meltblown nonwoven fabric layer and the spunbond nonwoven fabric layer are partially laminated by thermal fusion (thermocompression bonding) is more preferable.
  • meltblown nonwoven fabric layer / spunbond nonwoven fabric examples include a meltblown nonwoven fabric layer / spunbond nonwoven fabric and a spunbond nonwoven fabric / meltblown nonwoven fabric layer / spunbond nonwoven fabric.
  • nonwoven fabric laminates the configuration of spunbond nonwoven fabric / meltblown nonwoven fabric layer / spunbond nonwoven fabric is preferable from the viewpoint of durability of the agricultural coating material.
  • meltblown nonwoven fabric layer and the spunbond nonwoven fabric layer various methods can be used as described later, but embossing can be preferably used.
  • embossing can be preferably used.
  • “partially” means a range of 5 to 30%, preferably 5 to 20% in terms of area ratio.
  • the fiber diameter is 0.1 to 10 ⁇ m, preferably 1 to 10 ⁇ m, more preferably 3 to 10 ⁇ m, and the basis weight is 0.1 to 3 g / m 2 , preferably 0.3 to 3 g / m 2. More preferably, it is in the range of 0.5 to 3 g / m 2 , further preferably 0.5 to 2.5 g / m 2 , and most preferably 0.5 to 1.5 g / m 2 .
  • the fiber diameter and basis weight of the melt blown nonwoven fabric layer are within the above ranges, the strength / elongation is maintained and the balance of heat retention / barrier properties and breathability is excellent, and the transmittance decreases due to diffused reflection of light caused by fine fibers. Is also preferable because it can be minimized. Moreover, it is excellent in the uniformity of the said physical property.
  • the agricultural covering material of the present invention is used to promote the growth of crops by keeping warm and moisturized, to protect crops from weather such as wind and rain, and to prevent external damage from insects and birds, etc. It can be widely used for cultivation.
  • the agricultural covering material of the present invention as a so-called solid cover material for outdoor cultivation, it is only necessary to directly hook the entire ridge including agricultural products and fix the end portion, so it is very simple. This is preferable because it can be stretched.
  • the agricultural covering material of the present invention is not limited to a mode in which it is directly applied to a crop (solid), but also when it is desired to secure a sufficient internal space in consideration of the plant height after the growth of the crop, etc. It can also be used as a covering material for floating or house cultivation.
  • the agricultural covering material of the present invention may be used in combination with other agricultural covering materials such as other non-woven fabrics and films, for example, in order to adjust the balance of heat retention, moisture retention and air permeability. Is possible.
  • covering material can be manufactured with the manufacturing method of various well-known nonwoven fabrics.
  • the spunbond nonwoven fabric is produced by the method for producing a spunbond nonwoven fabric.
  • the propylene polymer composition is spun from a spinning nozzle in advance, and the spun long fiber filament is cooled with a cooling fluid or the like, and tension is applied to the filament with drawn air to obtain a predetermined fineness. Then, the obtained filaments can be collected on a moving collection belt to produce a spunbonded nonwoven fabric.
  • the spunbonded nonwoven fabric used as the agricultural coating material of the present invention can maintain the strength and heat retention of the agricultural coating material obtained by partial thermocompression bonding by embossing or the like. This is preferable in terms of improving transparency and maintaining a balance between flexibility and air permeability.
  • the embossed area ratio (thermocompression bonding portion) is usually in the range of 5 to 30%, preferably 5 to 20%.
  • the stamped shape include a circle, an ellipse, an ellipse, a square, a rhombus, a rectangle, a square, a quilt, a lattice, a turtle shell, and a continuous shape based on these shapes.
  • the agricultural covering material of the present invention is used after being subjected to secondary processing such as gear processing, printing, coating, laminating, heat treatment, shaping processing, hydrophilic processing, water-repellent processing, etc., as long as the object of the present invention is not impaired. Also good.
  • a non-woven fabric to be measured is attached to the ceiling of the box, the distance from the light source is kept at 25 cm, and an illuminometer is installed 30 cm below the non-woven surface of the ceiling inside the box.
  • the illuminance L1 is measured without attaching the nonwoven fabric of the sample, and then the nonwoven fabric is attached and the illuminance L2 is measured.
  • the light transmittance is determined by the following equation.
  • Lettuce germination rate Using an agricultural covering material, solid cultivation of lettuce was carried out in December, seeding in December and harvesting in March of the following year at 3 rows x 5 m x cocoon width 90 cm. When the germination after sowing was 50% or more, the solid covering material was removed all at once, and the germination number / sowing number was counted and calculated as the germination rate.
  • the span of the fiber diameter is 40 ⁇ m and the basis weight is 20 g / m 2 .
  • a bond nonwoven agricultural covering material was obtained.
  • the obtained agricultural coating material was evaluated by the method described above. The results are shown in Table 1.
  • Examples 2 and 3 Except having set it as the spun bond nonwoven fabric which has a composition ratio, fiber diameter, and fabric weight of Table 1, it carried out similarly to Example 1 and obtained the agricultural coating
  • the obtained agricultural covering material was evaluated by the method described above. The results are shown in Table 1.
  • the obtained agricultural dressing material was not excellent in the durability of yarn fraying, and the yarn fraying after promotion and after use was particularly remarkable.
  • the results are shown in Table 1.
  • Polyethylene terephthalate [PET1, product name J125 manufactured by Mitsui Chemicals, Inc.] is used as the polyester polymer for the core, high-density polyethylene (PE2) is used for the sheath, and composite melt spinning is performed, and the core ratio is 50 weight. % (Core: sheath weight ratio: 50:50) was deposited on the collecting surface to obtain a spunbond nonwoven agricultural covering material. The strength of the nonwoven fabric was good, but the elongation was insufficient. Further, after the promotion and after use, the heat embossed portion was broken in such a manner that the sheath portion was separated from the core portion, resulting in poor durability.
  • PET1 product name J125 manufactured by Mitsui Chemicals, Inc.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental Sciences (AREA)
  • Textile Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Soil Sciences (AREA)
  • Botany (AREA)
  • Protection Of Plants (AREA)
  • Nonwoven Fabrics (AREA)
  • Greenhouses (AREA)

Abstract

Le problème décrit par la présente invention est de développer un matériel de recouvrement à usage agricole, présentant une durabilité supérieure et une propriété permettant de laisser croître des cultures agricoles telles que des légumes. La présente invention concerne : un matériel de recouvrement à usage agricole, qui comprend un textile non-tissé produit à partir d'une composition de polymère de propylène comprenant de 90 à 98 % en masse d'un polymère de propylène (A) et de 10 à 2 % en masse d'un polymère d'éthylène (B) [où (A)+(B)=100 % en masse] ; et un procédé de production du matériau de recouvrement.
PCT/JP2013/074978 2012-09-19 2013-09-17 Matériel de recouvrement à usage agricole, et son procédé de production WO2014046070A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020157007773A KR101778415B1 (ko) 2012-09-19 2013-09-17 농업용 피복재 및 그의 제조 방법
JP2014536848A JP5684436B2 (ja) 2012-09-19 2013-09-17 農業用被覆材及びその製造方法
CN201380047995.0A CN104640438B (zh) 2012-09-19 2013-09-17 农业用被覆材及其制造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-205501 2012-09-19
JP2012205501 2012-09-19

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WO2014046070A1 true WO2014046070A1 (fr) 2014-03-27

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JP (1) JP5684436B2 (fr)
KR (1) KR101778415B1 (fr)
CN (1) CN104640438B (fr)
WO (1) WO2014046070A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015223152A (ja) * 2014-05-29 2015-12-14 ユニチカ株式会社 農業用被覆資材
JP2016113704A (ja) * 2014-12-11 2016-06-23 ユニチカ株式会社 農業用被覆資材
KR20170065588A (ko) 2014-10-30 2017-06-13 미쓰이 가가쿠 가부시키가이샤 스펀본드 부직포, 부직포 적층체, 의료용 의료, 드레이프, 및 멜트블론 부직포

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5232492B2 (ja) 2008-02-13 2013-07-10 株式会社日本製鋼所 偏析性に優れたＮｉ基超合金

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0445727A (ja) * 1990-06-08 1992-02-14 Asahi Chem Ind Co Ltd ベタ掛け用被覆材
JPH08126440A (ja) * 1994-11-02 1996-05-21 Unitika Ltd 農業用シート
JPH09105061A (ja) * 1995-10-06 1997-04-22 Unitika Ltd 耐候性長繊維不織布
WO2004029342A1 (fr) * 2002-09-25 2004-04-08 Basell Poliolefine Italia S.P.A. Fibres de polypropylene convenant pour des non-tisses spunbonded
JP2006149263A (ja) * 2004-11-29 2006-06-15 Mkv Platech Co Ltd 光選択透過性農業用不織布被覆材およびそれを用いる植物の栽培方法
WO2008104520A1 (fr) * 2007-02-28 2008-09-04 Total Petrochemicals Research Feluy Fibres de polypropylène et non-tissés spunbound (voie fondue directe) en polypropylène présentant des propriétés améliorées
WO2013022045A1 (fr) * 2011-08-08 2013-02-14 三井化学株式会社 Matériau de recouvrement agricole

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2645300B2 (ja) * 1987-05-13 1997-08-25 住友化学工業株式会社 農業用不織布
JPH08113860A (ja) * 1994-10-18 1996-05-07 Kuraray Co Ltd 耐水性ポリビニルアルコール系不織布の製造方法
ES2116226B1 (es) * 1995-06-08 1999-04-01 Mitsui Chemicals Inc Peliculas monocapa y multicapa para agricultura.
JPH09324355A (ja) * 1996-06-06 1997-12-16 Kuraray Co Ltd 不織布
JP4943349B2 (ja) * 2006-02-06 2012-05-30 三井化学株式会社 スパンボンド不織布
JP4472753B2 (ja) * 2006-05-31 2010-06-02 三井化学株式会社 不織布積層体およびその製造方法
JP5289459B2 (ja) 2008-10-29 2013-09-11 三井化学株式会社 捲縮複合繊維、及び当該繊維からなる不織布
JP5205248B2 (ja) * 2008-12-12 2013-06-05 ダイオ化成株式会社 割繊維不織布

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0445727A (ja) * 1990-06-08 1992-02-14 Asahi Chem Ind Co Ltd ベタ掛け用被覆材
JPH08126440A (ja) * 1994-11-02 1996-05-21 Unitika Ltd 農業用シート
JPH09105061A (ja) * 1995-10-06 1997-04-22 Unitika Ltd 耐候性長繊維不織布
WO2004029342A1 (fr) * 2002-09-25 2004-04-08 Basell Poliolefine Italia S.P.A. Fibres de polypropylene convenant pour des non-tisses spunbonded
JP2006149263A (ja) * 2004-11-29 2006-06-15 Mkv Platech Co Ltd 光選択透過性農業用不織布被覆材およびそれを用いる植物の栽培方法
WO2008104520A1 (fr) * 2007-02-28 2008-09-04 Total Petrochemicals Research Feluy Fibres de polypropylène et non-tissés spunbound (voie fondue directe) en polypropylène présentant des propriétés améliorées
WO2013022045A1 (fr) * 2011-08-08 2013-02-14 三井化学株式会社 Matériau de recouvrement agricole

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015223152A (ja) * 2014-05-29 2015-12-14 ユニチカ株式会社 農業用被覆資材
KR20170065588A (ko) 2014-10-30 2017-06-13 미쓰이 가가쿠 가부시키가이샤 스펀본드 부직포, 부직포 적층체, 의료용 의료, 드레이프, 및 멜트블론 부직포
KR20190030786A (ko) 2014-10-30 2019-03-22 미쓰이 가가쿠 가부시키가이샤 스펀본드 부직포, 부직포 적층체, 의료용 의료, 드레이프, 및 멜트블론 부직포
JP2016113704A (ja) * 2014-12-11 2016-06-23 ユニチカ株式会社 農業用被覆資材

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