CN104640438A - Covering material for agricultural use, and method for producing same - Google Patents

Covering material for agricultural use, and method for producing same Download PDF

Info

Publication number
CN104640438A
CN104640438A CN201380047995.0A CN201380047995A CN104640438A CN 104640438 A CN104640438 A CN 104640438A CN 201380047995 A CN201380047995 A CN 201380047995A CN 104640438 A CN104640438 A CN 104640438A
Authority
CN
China
Prior art keywords
coated material
agricultural
agricultural coated
spun
woven
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
Application number
CN201380047995.0A
Other languages
Chinese (zh)
Other versions
CN104640438B (en
Inventor
市川太郎
津田武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Chemicals Inc
Mitsui Chemical Industry Co Ltd
Original Assignee
Mitsui Chemical Industry Co Ltd
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 Mitsui Chemical Industry Co Ltd filed Critical Mitsui Chemical Industry Co Ltd
Publication of CN104640438A publication Critical patent/CN104640438A/en
Application granted granted Critical
Publication of CN104640438B publication Critical patent/CN104640438B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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

Landscapes

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

Abstract

The present invention addresses the problem of developing a covering material for agricultural use, which has superior durability and an excellent property of enabling the growth of agricultural crops such as vegetables. The present invention provides: a covering material for agricultural use, which comprises a non-woven fabric produced from a propylene polymer composition comprising 90 to 98 mass% of a propylene polymer (A) and 10 to 2 mass% of an ethylene polymer (B) (wherein (A)+(B) = 100 mass%); and a method for producing the covering material.

Description

Agricultural coated material and manufacture method thereof
Technical field
The present invention relates to a kind of agricultural coated material comprising the non-weaving cloth of propylene polymer composition, be particularly a kind ofly suitable for durability, the excellent outdoor cultivation of growing of crops, move-in-mud robot, greenhouse culture purposes, the agricultural coated material directly covering (all standing) purposes and manufacture method thereof.
Background technology
In order to cover crop resists the change of external environment condition, help it to grow, agricultural coated material is widely used.Agricultural coated material is broadly divided into film and non-weaving cloth, distinguishes use according to respective feature.
The agricultural coated material be made up of film do not have gas permeability or gas permeability low, but there is high barrier and high transparent (or high light-proofness), such as the phase in severe winter insulation (greenhouse culture), suppress the rainwater of fruit to soak into, suppress the purposes that weeds are in great numbers, to prevent that insect from flying here etc. such.
On the other hand, compared with the agricultural coated material formed with by film, although the block of the agriculture coated material be made up of non-weaving cloth is slightly poor, but there is highly-breathable, be not only the phase in severe winter, even warm Climatic is also difficult to cause high-temperature damage, thus allow the scope of use wide.
In addition, compared with the agricultural coated material formed with by film, raw-material softness, light weight, form tracing ability are excellent, need not carry out shed construction etc. as film, as long as be directly coated on crop (so-called all standing), thus operation is very easy to.Such as, patent document 1 (Japanese Patent Publication 4-8769 publication) proposes the agriculture coated material of a kind of all standing, its comprise the hydrophobic fibres such as polypropylene fibre more than with 6 daniers formed and the order amount of paying for 10 ~ 30g/m 2and light penetration is the non-weaving cloth of more than 85%.
Comprise the excellence such as yielding ability, intensity of the agricultural coated material of the non-weaving cloth of polypropylene fibre, but according to behaviour in service, have the situation of durability deficiency, thus the agricultural coated material needing durability more excellent.
Prior art document
Patent document
Patent document 1: Japanese Patent Publication 4-8769 publication
Summary of the invention
Invent problem to be solved
By the external load from wind and rain etc. in using the agricultural coated material comprising non-weaving cloth and the natural deterioration caused such as a long time, using, use in rub etc. with the leaf etc. of the vegetables of inside and cause non-weaving cloth self to occur to destroy and become problem.In the initial stage of this destruction, find that the hot pressing line portion (thermo-compressed portion) of non-weaving cloth unties, the phenomenon that the long stapled silk forming non-weaving cloth scatters.In this case, not only the intensity of non-weaving cloth self reduces, and the silk untied is involved in the inside of the lettuce of inside, particularly the bag heart of vegetables etc., thus causes and be found so large problem as foreign matter when final consumption.
Therefore, generally for the bond strength improving hot pressing line portion, hot pressing line condition can be strengthened, particularly, take to improve the countermeasure such as temperature, pressure more.But if strengthen hot pressing line condition, then the tensile stretch of general non-weaving cloth can reduce, and when using with coated material as agricultural, owing to extending, therefore breakage etc. can occur, thus become the coated material of operability difference.Therefore, the non-weaving cloth of the bond strength improving hot pressing line portion under the state of the tensile stretch of the preferred non-weaving cloth being maintained as agricultural coated material is not also obtained up to now.
The object of the invention is to develop a kind of agricultural coated material, the durability such as its resistance to scattering property of silk are more excellent, the growing property excellence of the crops such as vegetables.
For solving the method for problem
The invention provides a kind of the agricultural coated material and the manufacture method thereof that comprise non-weaving cloth, described non-weaving cloth is by ethylene-based polymer (B) (wherein, (A)+(the B)=100 quality % of the acrylic polymer of 90 ~ 98 quality % (A) with 10 ~ 2 quality %.) propylene polymer composition to obtain.
Invention effect
With regard to agricultural coated material of the present invention; the excellent in te pins of durability such as resistance to scattering property of silk; there is gas permeability, heat insulating ability; maintain keep crops growing and visuality sufficient light penetration while also there is water proofing property, therefore, it is possible to ahead of time crop harvest time, increase harvest yield, protection crops from freeze disaster, eliminate excessive growth etc. bad grow or cover crop resist the floods such as rainwater, insect sudden.
Embodiment
< acrylic polymer (A) >
As become the non-weaving cloth forming agricultural coated material of the present invention raw material propylene polymer composition in the acrylic polymer (A) of principal component be generally: fusing point (Tm) is in more than 155 DEG C, be preferably the Noblen of the scope of 157 ~ 165 DEG C, or propylene and a small amount of ethene, 1-butylene, 1-amylene, 1-hexene, 1-octene, the carbon numbers such as 4-methyl-1-pentene more than 2 (wherein, except carbon number 3), be preferably 2 ~ 8 (wherein, except carbon number 3) the copolymer etc. of one kind or two or more alpha-olefin using the polymer of propylene as main body.In addition, in order to maintain intensity, the stability of spinning process of non-weaving cloth, be preferably Noblen.
With regard to acrylic polymer of the present invention (A), as long as can melt spinning be carried out, then melt flow rate (MFR) (MFR 230: ASTM D-1238,230 DEG C, load 2160g) be not particularly limited, but when making spun-bonded non-woven, usually be in 1 ~ 500g/10 minute, be preferably 5 ~ 200g/10 minute, the more preferably scope of 10 ~ 100g/10 minute, when making melt-blowing nonwoven, being usually in 10 ~ 3000g/10 minute, being preferably 50 ~ 2000g/10 minute, the more preferably scope of 100 ~ 1000g/10 minute.
In addition, the weight average molecular weight (Mw) of acrylic polymer of the present invention and the ratio Mw/Mn of number-average molecular weight (Mn) are generally 1.5 ~ 5.0.From the viewpoint of obtaining the good and fiber that fibre strength is excellent especially of spinnability, the more preferably scope of 1.5 ~ 4.5.Mw and Mn can pass through GPC (gel permeation chromatography) and utilize known method to measure.
< ethylene-based polymer (B) >
As become the non-weaving cloth forming agricultural coated material of the present invention raw material propylene polymer composition in the ethylene-based polymer (B) of other compositions be: the homopolymers of ethene, or as the high-pressure process low-density polyethylene, linear low density polyethylene (LLDPE) (so-called LLDPE), medium density polyethylene (so-called MDPE), high density polyethylene (HDPE) (so-called HDPE) etc. of the copolymer of the alpha-olefins such as ethene and a small amount of propylene, 1-butylene, 1-hexene, 4-methyl-1-pentene and 1-octene using the polymer of ethene as main body.
As ethylene-based polymer of the present invention (B), from the viewpoint of spinnability and the intensity of fiber, preferred density is in 0.94 ~ 0.97g/cm 3, be 0.95 ~ 0.97g/cm further 3the high density polyethylene (HDPE) (HDPE) of scope.
With regard to ethylene-based polymer of the present invention (B), as long as aforesaid propylene based polymer (A) can be made an addition to and carries out dissolving spinning, then melt flow rate (MFR) (MFR 190: ASTM D1238,190 DEG C, load 2160g) be not particularly limited, but be usually in 0.1 ~ 100g/10 minute, be more preferably 0.5 ~ 50g/10 minute, more preferably 1 ~ 30g/10 minute, most preferably be the scope of 2 ~ 10g/10 minute.
< propylene polymer composition >
The propylene polymer composition becoming the raw material of the non-weaving cloth forming agricultural coated material of the present invention is 90 ~ 98 quality %, the aforesaid propylene based polymer (A) being preferably 92 ~ 97 quality % and 10 ~ 2 quality %, above-mentioned ethylene-based polymer (B) (wherein, (A)+(the B)=100 quality % being preferably 8 ~ 3 quality %.) composition.
When using the amount of ethylene-based polymer (B) to be less than the composition of 2 quality %, the durability (bond strength etc. in hot pressing line portion (also referred to as thermo-compressed portion)) of the non-weaving cloth obtained is not enough, when this non-weaving cloth is used for agricultural coated material, the improvement of growing of crops is also not enough.
On the other hand, when using the amount of ethylene-based polymer (B) to be greater than the composition of 10 quality %, because the spinnability of composition becomes extreme difference, therefore not preferred.
For propylene polymer composition of the present invention, in the scope not damaging object of the present invention, also can add the various known additives such as colouring agent, antioxidant, weathering stabilizers, resistance to light stabilizer, anti-blocking agent, lubricant, nucleator, pigment, softening agent, hydrophilizing agent, water-repelling agent, auxiliary agent, water-repelling agent, filler, antibacterial agent, agricultural chemicals, insect-proof agent, medicament.Especially, in outdoor application, add antioxidant, weathering stabilizers, the resistance to light stabilizer of imparting durability, bring the pigment etc. of impact to be effective on the activity of growing of plant.
< agricultural uses coated material >
Agricultural coated material of the present invention comprises the non-weaving cloth obtained by aforesaid propylene based polymer composition.
As the non-weaving cloth for agricultural coated material of the present invention, the various known non-weaving cloths such as staple fiber nonwoven cloth, long fiber nonwoven fabrics can be used, wherein, low from the viewpoint of the balance of the transparency of non-weaving cloth and heat insulating ability, softness, light weight, the injury that causes vegetables, the non-weaving cloth be preferably made up of long fibre, spun-bonded non-woven.
In addition, although agricultural coated material of the present invention comprises the non-weaving cloth obtained by aforesaid propylene based polymer composition, but with regard to the non-weaving cloth forming agriculture coated material of the present invention, in the scope not damaging object of the present invention, it can be the non-weaving cloth comprising the composite fibre making fiber and other fibers mixture obtained by aforesaid propylene based polymer composition, other fibers described are the fiber such as obtained by aforesaid propylene based polymer (A) monomer, or the fiber obtained by other olefin polymers, polyester, thermoplastic elastomer (TPE) etc.
Further, the fiber formed as the non-weaving cloth of agricultural coated material of the present invention can be the Single Fiber comprising aforesaid propylene based polymer composition, in the scope not damaging object of the present invention, it also can be the composite fibre containing the having side by side of aforesaid propylene based polymer composition, core sheath structure.
In addition, the cross sectional shape forming the fiber of non-weaving cloth can adopt the shapes such as polygon, ellipse or hollow shape such as circle, star or triangle, quadrangle, pentagon.
With regard to agricultural coated material of the present invention, order is paid and is generally 10 ~ 50g/m 2, be preferably 10 ~ 30g/m 2, be more preferably 13 ~ 30g/m 2scope, light penetration is generally more than 70%, is preferably more than 75%, is more preferably more than 80%, and fibre diameter is generally 10 ~ 50 μm, is preferably the scope of 13 ~ 40 μm, and silk durability times of scattering is generally more than 12 times, preferably more than 14 times.
Agricultural coated material of the present invention preferably has thermo-compressed portion.The choosing of thermo-compressed quality award from the ministry counts the scope of 5 ~ 30%, preferably 5 ~ 20% by part thermo-compressed with area occupation ratio.
With regard to the intensity that forms the non-weaving cloth of agricultural coated material of the present invention and tensile stretch, in order to launch lay time, dismounting time operability, tolerance use in various external environment conditions, internal environment, preferred MD (operating direction) intensity is that more than 20N, CD (transverse direction) intensity is more than 10N, MD tensile stretch is more than 50%, CD tensile stretch is more than 50%.More preferably MD intensity is more than 25N, CD intensity is more than 10N, MD tensile stretch is more than 70%, CD tensile stretch is more than 70%.If lower than above-mentioned intensity and tensile stretch, then the easy opening of layered nonwoven fabric or break, therefore not preferred.
In addition, in order to adjust the heat insulating ability of spun-bonded non-woven, moisture retention, gas permeability balance or realize lightweight, also can carry out Composite with melt-blowing nonwoven, wet type non-weaving cloth, dry type non-weaving cloth, dry type slurry non-weaving cloth, flash-spinning non-weaving cloth, fibrillation non-weaving cloth, film etc.Be particularly preferably the duplexer of meltblown nonwoven layer and spun-bonded non-woven, be more preferably meltblown nonwoven layer further and spunbonded nonwoven layer of cloth passage divides thermal welding (thermo-compressed) and stacked layered nonwoven fabric.
Particularly, meltblown nonwoven layer/spun-bonded non-woven, spun-bonded non-woven/meltblown nonwoven layer/spun-bonded non-woven can be enumerated.In these layered nonwoven fabrics, from the viewpoint of the durability of agricultural coated material, be preferably the structure of spun-bonded non-woven/meltblown nonwoven layer/spun-bonded non-woven.
As the method by meltblown nonwoven layer and spunbonded nonwoven carcass portion thermal welding (thermo-compressed), various method described later can be used, but can preferably use embossing to process.Be explained, in the present invention, " part " refers to the scope counted 5 ~ 30% with area occupation ratio, be preferably 5 ~ 20%.
Use the scope that fibre diameter when melt-blowing nonwoven is in 0.1 ~ 10 μm, is preferably 1 ~ 10 μm, is more preferably 3 ~ 10 μm, order is paid and is in 0.1 ~ 3g/m2, is preferably 0.3 ~ 3g/m 2, be more preferably 0.5 ~ 3g/m 2, more preferably 0.5 ~ 2.5g/m 2, most preferably be 0.5 ~ 1.5g/m 2scope.
When using the order of melt-blowing nonwoven to pay the layered nonwoven fabric exceeding above-mentioned scope, although heat insulating ability, block excellence, but transmitance is extremely low, therefore grower can not see that inside or sunlight fully do not arrive inside, thus easily cause the dysplasia of crops, therefore not preferred.In addition, owing to being difficult to the intensity, the tensile stretch that maintain above-mentioned non-weaving cloth, therefore not preferred.
If the fibre diameter of meltblown nonwoven layer and order are paid be in above-mentioned scope, then owing to maintaining intensity, tensile stretch, and the balancing good of heat insulating ability, block and gas permeability, the reduction of the transmitance that the diffuse reflection of the light caused by fine fibre causes is suppressed to bottom line, therefore preferably.In addition, the homogeneity of above-mentioned physical property is excellent.
Agricultural coated material of the present invention to utilize insulation, the weather such as moisturizing promotes crops grows, protect crops to resist the elements, prevent from worm, bird etc. external damage for the purpose of, the outdoor cultivation, move-in-mud robot, greenhouse culture etc. of crops can be widely used in.When agricultural coated material of the present invention is used for outdoor cultivation as so-called all standing material, as long as owing to directly covering the overall also anchor portion in the ridge portion comprising crops, can launch very simply, therefore preferably.
With regard to agricultural coated material of the present invention, except directly covering (all standing) except the mode of crops, also can be used as to consider the height after crop growth and fully ensure that the interior covering of the move-in-mud robot of the situation of inner space etc., coated material that shed covered, floated covering, greenhouse culture.
In addition, in order to adjust the balance of heat insulating ability, moisture retention, gas permeability, agricultural coated material of the present invention also can combinationally use with other agricultural coated materials such as such as other non-weaving cloth, films etc.
< forms the manufacture method > of the non-weaving cloth of agricultural coated material
Agricultural coated material of the present invention can be manufactured by the manufacture method of various known non-weaving cloth.As agricultural coated material of the present invention, when using spun-bonded non-woven, can be manufactured by the manufacture method of spun-bonded non-woven.
Particularly, can manufacture as follows, such as, in advance by aforesaid propylene based polymer composition from spinning-nozzle spinning, by spun long fibre long filament by coolings such as cooling fluids, utilize extension air to apply tension force to become the fiber number of regulation to long filament, the trapping of the filament collection obtained in movement is brought, thus makes spun-bonded non-woven.
In addition, with regard to being used as the spun-bonded non-woven of agricultural coated material of the present invention, if carry out part thermo-compressed by embossing processing etc., then can keep intensity, the heat insulating ability of the agriculture coated material obtained well, in addition, from the transparency improving agriculture coated material, the balance aspect of softness, gas permeability is kept to consider also preferred.
When carrying out thermo-compressed by the processing of hot pressing line, embossing area occupation ratio (thermo-compressed portion) is usually in 5 ~ 30%, is preferably the scope of 5 ~ 20%.Marking shape can illustrate circle, ellipse, Long Circle, square, rhombus, rectangle, quadrangle, quilting check, grid-shaped, tortoise-shell shaped, continuous shape based on these shapes.
Agricultural coated material of the present invention also can be implemented the secondary operations such as Gear Processing, printing, coating, lamination, thermal treatment, excipient processing, hydrophilic processing, hydrophobic processing and use in the scope not damaging object of the present invention.
Embodiment
Below, specifically describe the present invention further based on embodiment, but the invention is not restricted to these embodiments.
Physics value etc. in embodiment and comparative example is measured by following method.
(1) order pays (g/m 2)
Choose 10 from non-weaving cloth with operating direction (MD) 100mm × transverse direction (CD) 100mm, calculate mean value.
(2) fibre diameter
For spunbonded nonwoven layer of cloth, choose 10 10mm × 10mm test films from the non-weaving cloth obtained, use Nikon Inc. ECLIPSE E400 microscope by multiplying power 20 times and by μm in units of read fiber diameter to decimal point the 1st.Each test film measures the diameter at any 20 places, obtains mean value.For meltblown layer, choose test film from the non-weaving cloth obtained, use scanning electron microscope with multiplying power 500 times or 1000 times of observations, measure the fibre diameter (μm) that 30 form fiber, obtain mean value.
(3) tensile strength (N/50mm) and tensile elongation (%)
Measure according to JIS L 1906.The test film of 200mm (MD) × 50mm (CD) is chosen from agriculture coated material, use cupping machine (Shimadzu Seisakusho Ltd. AUTOGRAPH AGS-J) with chuck spacing 100mm and on MD, measure 5 places with head speed 100mm/min, on CD, measure 5 places, calculate mean value, thus try to achieve tensile strength (N/50mm) and tensile elongation (%).
(4) air permeability (cm 3/ cm 2/ sec)
Choose the test film of 200mm (MD) × 50mm (CD) from agricultural coated material, under 2 overlapping states, according to JIS L 1096, utilize FRAZIER air permeability measuring machine to carry out.The mean value of the value (n=5) obtained divided by 2 by the numerical value obtained is as measured value.
(5) light penetration
Utilize juridical person Japan chemical fibre to check the light transmittance test method(s) of association, particularly, the chest of long 32cm, wide 32cm, high 45cm is set in the below of loop wire white 20W lamp.
The non-weaving cloth of determination object is installed at the top of chest, remains 25cm with the distance of light source, and in the inner side of chest, illuminometer is set in the below of the non-woven cloth cover 30cm at distance top.
In darkroom, measure the illumination L1 not installing the non-weaving cloth of test portion, then, non-weaving cloth is installed and measures illumination L2.Light penetration is determined by following formula.
Light penetration (%)=L2/L1 × 100
(6) silk scatters test
(6-1) initial stage silk scatters durability times
According to ASTM D-5264, the test film of 150mm (MD) × 150mm (CD) is chosen from agriculture coated material, and be installed on the test portion fixture of Sutherland Ink Rub Tester testing machine, until observe the Rubbing number required for the scattering of silk (scatter from hot pressing line portion silk and appear in one's mind state) under using the sand paper of #400 to be determined at uncharge state.Repeatedly carry out 5 these mensuration, the mean value obtained to be scattered durability times as the silk at initial stage.
(6-2) silk after accelerating process scatters test
For the test film (n=5) choosing 200mm (MD) × 50mm (CD) from agriculture coated material, utilize high strength xenon lamp (radiation illumination 180W/m 2) carry out 60 DEG C, 234 hours postradiation samples, be installed on the test portion fixture of Sutherland Ink Rub Tester testing machine, until observe the Rubbing number required for the scattering of silk (scatter from hot pressing line portion silk and appear in one's mind state) under using the sand paper of #400 to be determined at uncharge state.Repeatedly carry out 5 these mensuration, the mean value obtained to be scattered durability times as the silk after accelerating process.
(7) lettuce germination rate
Use agricultural coated material, at 3 × 5m × row spacing 90cm, implement all standing cultivation of lettuce, December is sowed, Second Year results in March.Be that 5 one-tenth above time points take off all standing material entirely after planting to germinate simultaneously, germinative number/sowing number counted as germination rate and calculates.
[embodiment 1]
Use MFR is 20g/10 minute, Mw/Mn is 4.2 Noblen (PP1) 96 quality %, high density polyethylene (HDPE) (PE1, Prime Polymer (strain) system, goods name " HI-ZEX HZ2200J ", MFR=5g/10 minute, density 0.964g/cm 3) 4 quality %, carry out melt spinning at 230 DEG C, make the fiber accumulations obtained in collection face, obtain that fibre diameter is 40 μm, order is paid as 20g/m 2spun-bonded non-woven agricultural coated material.The method of above-mentioned record is adopted to evaluate the agricultural coated material obtained.Show the result in table 1.
[embodiment 2,3]
Adopt the spun-bonded non-woven that there is ratio of components, fibre diameter and order described in table 1 and pay, in addition, carry out similarly to Example 1, obtain agricultural coated material.
The method of above-mentioned record is adopted to evaluate the agricultural coated material obtained.Show the result in table 1.
[comparative example 1,2]
Adopt the spun-bonded non-woven that there is ratio of components, fibre diameter and order described in table 1 and pay, in addition, carry out similarly to Example 1, obtain agricultural coated material.
The silk of the agricultural coated material obtained scatters durability times difference, after particularly accelerating, use after silk scatter significantly.Show the result in table 1.
[comparative example 3]
Want the high density polyethylene (HDPE) (PE1) only using embodiment 1 to use to make the agricultural coated material comprising spun-bonded non-woven, but can not non-weaving cloth be obtained owing to there is broken string.
[comparative example 4]
Only use high density polyethylene (HDPE) (PE2, Prime Polymer (strain) system, goods name " NEO-ZEXNZ50302 ", density 0.950g/cm 3, MFR=30g/10 minute), obtain having the spun-bonded non-woven agricultural coated material that fibre diameter described in table 1 and order are paid.
Different from comparative example 3, can carry out spinning, but the intensity of the non-weaving cloth obtained, tensile stretch, silk scatter, durability times etc. are significantly not enough, can not use as agricultural coated material.
[comparative example 5]
Core is used as the PETG (PET1, Mitsui Chemicals (strain) system, goods name J125) of Polyester polymer, sheath portion uses high density polyethylene (HDPE) (PE2), carry out composite molten spinning, make core ratio be that the sheath-core type conjugate fiber of 50 % by weight (cores: the weight ratio in sheath portion is 50:50) is piled up in collection face, obtain spun-bonded non-woven agricultural coated material.The intensity of non-weaving cloth is good, but tensile stretch is not enough.In addition, after acceleration, use after, with sheath portion and core segment from the destruction in form generation hot pressing line portion, become the result of poor durability.
[comparative example 6]
Core uses the Noblen (PP2) of MFR=60g/10 minute, sheath portion uses high density polyethylene (HDPE) (PE-2), carry out composite molten spinning, make core ratio be that the sheath-core type conjugate fiber of the same core of 20 % by weight (cores: the weight ratio in sheath portion is 20:80) is piled up in collection face, obtain spun-bonded non-woven agricultural coated material.Intensity, the tensile stretch of non-weaving cloth are not enough.In addition, after acceleration, use after, with sheath portion and core segment from the destruction in form generation hot pressing line portion, become the result of poor durability.
[table 1]

Claims (9)

1. an agricultural coated material, it comprises the non-weaving cloth obtained with the propylene polymer composition of the ethylene-based polymer (B) of 10 ~ 2 quality % by the acrylic polymer of 90 ~ 98 quality % (A), wherein, (A)+(B)=100 quality %.
2. agricultural coated material as claimed in claim 1, non-weaving cloth is spun-bonded non-woven.
3. agricultural coated material as claimed in claim 1, ethylene-based polymer (B) is that density is in 0.94 ~ 0.97g/cm 3the high density polyethylene (HDPE) of scope.
4. the agricultural coated material according to any one of claims 1 to 3, light penetration is more than 70%.
5. the agricultural coated material according to any one of Claims 1 to 4, it is 10 ~ 30g/m that order is paid 2.
6. the agricultural coated material according to any one of Claims 1 to 5, is characterized in that, agricultural coated material has thermo-compressed portion.
7. a breeding method for crops, it utilizes the agricultural coated material mulch farming thing according to any one of claim 1 ~ 6.
8. the manufacture method of an agricultural coated material, described agricultural coated material comprises spun-bonded non-woven, described spun-bonded non-woven obtains as follows: by the propylene polymer composition of the acrylic polymer (A) of 90 ~ 98 quality % and the ethylene-based polymer (B) of 10 ~ 2 quality % from spinning-nozzle spinning, by spun long fibre long filament by coolings such as cooling fluids, utilize and extend air to long filament applying tension force to become the fiber number of regulation, the trapping of the filament collection obtained in movement is brought, wherein, (A)+(B)=100 quality %.
9. the manufacture method of agricultural coated material as claimed in claim 8, is characterized in that, after obtaining spun-bonded non-woven, carries out part hot pressing fetch formation thermo-compressed portion to described spun-bonded non-woven.
CN201380047995.0A 2012-09-19 2013-09-17 Covering material for agricultural use, and method for producing same Active CN104640438B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2012205501 2012-09-19
JP2012-205501 2012-09-19
PCT/JP2013/074978 WO2014046070A1 (en) 2012-09-19 2013-09-17 Covering material for agricultural use, and method for producing same

Publications (2)

Publication Number Publication Date
CN104640438A true CN104640438A (en) 2015-05-20
CN104640438B CN104640438B (en) 2017-05-10

Family

ID=50341381

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201380047995.0A Active CN104640438B (en) 2012-09-19 2013-09-17 Covering material for agricultural use, and method for producing same

Country Status (4)

Country Link
JP (1) JP5684436B2 (en)
KR (1) KR101778415B1 (en)
CN (1) CN104640438B (en)
WO (1) WO2014046070A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5232492B2 (en) 2008-02-13 2013-07-10 株式会社日本製鋼所 Ni-base superalloy with excellent segregation
JP6388493B2 (en) * 2014-05-29 2018-09-12 ユニチカ株式会社 Agricultural coating materials
CN113373599A (en) 2014-10-30 2021-09-10 三井化学株式会社 Spun-bonded nonwoven fabric, nonwoven fabric laminate, medical garment, drape, and melt-blown nonwoven fabric
JP2016113704A (en) * 2014-12-11 2016-06-23 ユニチカ株式会社 Agricultural covering material
JP6556593B2 (en) * 2015-10-28 2019-08-07 ユニチカ株式会社 Agricultural coating materials

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63283526A (en) * 1987-05-13 1988-11-21 Sumitomo Chem Co Ltd Agricultural nonwoven fabric
JPH08113860A (en) * 1994-10-18 1996-05-07 Kuraray Co Ltd Production of water-resistant polyvinyl alcohol-based nonwoven fabric
CN1147449A (en) * 1995-06-08 1997-04-16 三井石油化学工业株式会社 Agricultural single-and multi-layer films
JPH09324355A (en) * 1996-06-06 1997-12-16 Kuraray Co Ltd Nonwoven fabric
CN101374987A (en) * 2006-02-06 2009-02-25 三井化学株式会社 Spun-bonded nonwoven fabric
CN101432478A (en) * 2006-05-31 2009-05-13 三井化学株式会社 Non-woven fabric laminate and method for production thereof
JP2010138524A (en) * 2008-12-12 2010-06-24 Daio Kasei Kk Split fiber nonwoven fabric

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2878398B2 (en) * 1990-06-08 1999-04-05 旭化成工業株式会社 Solid coating material
JPH08126440A (en) * 1994-11-02 1996-05-21 Unitika Ltd Agricultural sheet
JPH09105061A (en) * 1995-10-06 1997-04-22 Unitika Ltd Weather-resistant filament nonwoven fabric
CA2499702A1 (en) * 2002-09-25 2004-04-08 Basell Poliolefine Italia S.P.A. Polypropylene fibres suitable for spunbonded non-woven fabrics
JP4558460B2 (en) * 2004-11-29 2010-10-06 Ｍｋｖドリーム株式会社 Non-woven fabric covering material for light selective permeability agriculture and plant cultivation method using the same
EP1964948A1 (en) * 2007-02-28 2008-09-03 Total Petrochemicals Research Feluy Polypropylene fibers and spunbond nonwoven with improved properties.
JP5289459B2 (en) 2008-10-29 2013-09-11 三井化学株式会社 Crimped composite fiber and nonwoven fabric made of the fiber
US20140173981A1 (en) * 2011-08-08 2014-06-26 Mitsui Chemicals, Inc. Agricultural covering material

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63283526A (en) * 1987-05-13 1988-11-21 Sumitomo Chem Co Ltd Agricultural nonwoven fabric
JPH08113860A (en) * 1994-10-18 1996-05-07 Kuraray Co Ltd Production of water-resistant polyvinyl alcohol-based nonwoven fabric
CN1147449A (en) * 1995-06-08 1997-04-16 三井石油化学工业株式会社 Agricultural single-and multi-layer films
JPH09324355A (en) * 1996-06-06 1997-12-16 Kuraray Co Ltd Nonwoven fabric
CN101374987A (en) * 2006-02-06 2009-02-25 三井化学株式会社 Spun-bonded nonwoven fabric
CN101432478A (en) * 2006-05-31 2009-05-13 三井化学株式会社 Non-woven fabric laminate and method for production thereof
JP2010138524A (en) * 2008-12-12 2010-06-24 Daio Kasei Kk Split fiber nonwoven fabric

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
张晓绯: "纺粘法非织造布的发展市场", 《广东化纤》, no. 2, 30 June 1993 (1993-06-30), pages 45 - 51 *
滕翠青: "国外农用非织造布覆盖材料的应用", 《产业用纺织品》, vol. 20, no. 2, 28 February 2002 (2002-02-28), pages 35 - 38 *
陈龙敏: "非织造材料的农业应用和发展", 《产业用纺织品》, no. 9, 30 September 2009 (2009-09-30), pages 30 - 32 *

Also Published As

Publication number Publication date
JP5684436B2 (en) 2015-03-11
KR101778415B1 (en) 2017-09-13
JPWO2014046070A1 (en) 2016-08-18
WO2014046070A1 (en) 2014-03-27
KR20150051226A (en) 2015-05-11
CN104640438B (en) 2017-05-10

Similar Documents

Publication Publication Date Title
CN103732054B (en) Agricultural coated material
US10750679B2 (en) Crop protection netting
CN104640438B (en) Covering material for agricultural use, and method for producing same
KR20070030370A (en) Rice straw and coconut net and method for preparing the same
Restrepo-Osorio et al. Agrotextiles and crop protection textiles
JP4873256B2 (en) Laminated sheet and method for producing the same
KR101161232B1 (en) The vegetation mat for forest restoration and forest restoration method using the same
KR100931619B1 (en) Reinforced vegetation mats for revetment and surface protection greening and construction method
JP6634190B1 (en) Herbicidal sheet and method for manufacturing herbicidal sheet
JP4546865B2 (en) Surrounding vegetation introduction type erosion prevention material and surrounding vegetation introduction type erosion prevention method
JP6388493B2 (en) Agricultural coating materials
JP2014014305A (en) Agricultural multi-sheet and using method thereof
JP2017063642A (en) Agricultural mulch sheet
JP4717673B2 (en) Water absorption / water retention sheet
CN104619917B (en) The method preventing husky movement in sand ground
CN205510751U (en) Living blanket is planted to coir fibre
JP2020068704A (en) Agricultural light reflection sheet
JPH10262472A (en) Permeable weed proof sheet
JP5588080B2 (en) Laying grass protection sheet for ground cover plant curing
JP2572314Y2 (en) Vegetation laying material
CN207869879U (en) A kind of enhanced composite construction agricultural mulching
Dhoka et al. Agrotextiles: A Booming Sector
JP7049758B2 (en) Net-like material
JP3124504B2 (en) Cultivation method of materials for bedding and agricultural products
KR101040847B1 (en) Textile bag for multipurpose and textile bag for filling soil

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant