WO2005087885A1 - 農業用遮光剤 - Google Patents
農業用遮光剤 Download PDFInfo
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- WO2005087885A1 WO2005087885A1 PCT/JP2005/004480 JP2005004480W WO2005087885A1 WO 2005087885 A1 WO2005087885 A1 WO 2005087885A1 JP 2005004480 W JP2005004480 W JP 2005004480W WO 2005087885 A1 WO2005087885 A1 WO 2005087885A1
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- light
- agricultural
- resin
- film
- shielding
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/02—Emulsion paints including aerosols
- C09D5/024—Emulsion paints including aerosols characterised by the additives
- C09D5/028—Pigments; Filters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D201/00—Coating compositions based on unspecified macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/008—Temporary coatings
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/02—Emulsion paints including aerosols
Definitions
- the present invention relates to an agricultural light-blocking agent applied to an agricultural film used for house cultivation or tunnel cultivation.
- the cultivation in an agricultural film house may be such that the transmitted sunlight is too intense and has an adverse effect such as burning.
- a light-shielding net sheet
- an inorganic substance such as lime is dispersed in water and sprayed on the agricultural film house to coat the inorganic substance.
- Means of forming light and shielding light have been adopted.
- the light-shielding coating film becomes unnecessary, the light-shielding paint applied on the film must be removed.
- the emulsion paint itself forming these coating films is not formulated with a prescription that enables removal when unnecessary. For example, in winter If it is necessary to pass sunlight through the house, it is necessary to remove the light-shielding coating with a strong removal solution containing a surfactant or an organic solvent, or to spread a new agricultural film. there were.
- Patent Document 1 JP-A-2002-119148
- the present invention provides a light-shielding agent to be applied to an agricultural resin film when forming a film of an inorganic substance, which is a white pigment, on an agricultural house or the like to perform light-shielding.
- a light-blocking agent for agriculture that gives the light-blocking film a lasting property so that it does not run off more easily, and forms a light-blocking film that can be easily removed with an alkaline remover when it is no longer needed.
- the task is to provide
- the inventors of the present invention have used a resin emulsion as a binder as an inorganic film for coating an agricultural house film, in which particles having different particle diameters are used.
- a resin emulsion as a binder as an inorganic film for coating an agricultural house film, in which particles having different particle diameters are used.
- two types of inorganic substances are blended to form a light-shielding layer, they are water-resistant to water such as rain, and can be easily removed with an alkali-removing solution when they are no longer needed. It was confirmed that a film was obtained.
- the present inventors in the case of a resin film for agricultural use, include a Shii-Dan-Bull-based resin film or an olefin-based resin film, wherein the resin film contains a hindered amine-based compound.
- the light-shielding coating of the light-shielding agent applied to the film surface is maintained for a long period of time, and when it is no longer required, it can be easily removed with an alkaline remover. It was confirmed that an acceptable light-shielding coating film was obtained.
- the present invention has been completed based on these novel matters.
- the present invention provides, as a first aspect, an inorganic substance, a resin emulsion, and a light-shielding coating solution which is also hydraulic as an aqueous solvent, wherein the ratio of the resin component to the inorganic substance is 1: 0. 3-1: 15 Inorganic substances with an average particle diameter of less than 1 ⁇ m as well as inorganic substances with an average particle diameter of less than 1 ⁇ m and inorganic substances with an average particle diameter of 1 ⁇ m or more are used. : A light-shielding coating liquid for agricultural use, characterized in that the ratio of the inorganic substance having an average particle diameter or more is in the range of 1: 0.5-2.
- an acrylic resin obtained by copolymerizing a hydroxyl group-containing monomer is coated on at least one surface of the agricultural Shiridan BULL resin film for application of a light-blocking agent.
- Agriculture characterized by comprising an inorganic substance and a resin emulsion, forming a light-shielding layer by being applied to the surface of the coating film, and forming the light-shielding layer by an alkaline remover. It is a light-shielding agent.
- the present invention provides, in a third aspect, an agricultural resin film containing a hindered amine compound, which is composed of an inorganic substance and a resin emulsion, and the formed light-shielding layer is free of alkalinity.
- An agricultural light-blocking agent characterized by being removable with an agent.
- the hindered amine compound is contained in an amount of 0.05 to 0.3 part by weight
- the hindered amine compound is contained in an amount of 0.05 to 0.3 part by weight
- it is an agricultural light-shielding agent characterized by containing 0.05 to 2 parts by weight of a hindered amine compound.
- the agricultural olefin resin film has a multilayer structure, and at least an hindered amine compound is contained in an outer layer to which the light shielding agent is applied. is there.
- the inorganic substance is at least one selected from calcium carbonate, titanium oxide, titanium white, talc, clay, silica, myrium, and barium sulfate, more preferably.
- the present invention relates to a resin emulsion, wherein the resin component has an acid value of 30 to 300.
- Aqueous resin emulsion having an average resin particle size of 0.01 to 0.5 m.
- a light-shielding layer for agricultural use wherein each of the above-mentioned light-shielding agents for agriculture is applied to form a light-shielding layer which can be removed with an alkalinity-removing agent. It is also a method of applying the agent.
- the light-shielding coating film provided by the agricultural light-shielding agent provided by the present invention can provide a light-shielding effect over a long period of time without the film being washed away even by rainfall or the like.
- the light-shielding coating film becomes unnecessary, there is an advantage that it can be easily removed with an alkaline removing solution which does not require replacement with a new agricultural resin film.
- a light-shielding coating solution component a resin emulsion, two kinds of inorganic substances having different average particle diameters, and water as an aqueous solvent are used.
- the ratio of fat to inorganic material is set to be within a specific range in terms of the solid content ratio.
- the light shielding obtained by using a certain ratio of inorganic materials with different average particle diameters is particularly used. Water resistance is imparted to the coating film. Therefore, the light-shielding effect can be obtained for a long period of time without the inorganic film being washed away even by rainfall.
- a hydroxyl-containing monomer is used as an agricultural chloride-based resin film to which an agricultural sunscreen is applied, and as a base layer for the sunscreen.
- a copolymerized acrylic resin coating layer is formed on an agricultural Shiridan BULL resin film. With this base layer, the light-shielding agent is uniformly formed on the film, and the formed light-shielding coating film has excellent durability.
- the present invention according to the third aspect is characterized in that a resin film containing a hindered amine compound is used as an agricultural resin film to which a light-blocking agent is applied.
- a resin film containing a hindered amine compound is used as an agricultural resin film to which a light-blocking agent is applied.
- Inorganic substances contained in the agricultural light-shielding agent in each embodiment provided by the present invention and added to ensure light-shielding properties include calcium carbonate, titanium oxide, titanium white, talc, clay, silica, myric, Barium sulfate and the like can be given. Among them, particularly preferred is carbonic acid lucidum or oxidized titanium. If necessary, two or more inorganic substances may be used in combination.
- the difference in particle diameter is based on 1 ⁇ m, and two types of inorganic substances having an average particle diameter of less than 1 ⁇ m and inorganic substances having an average particle diameter of 1 m or more are used in combination. Turned out to be good.
- the maximum average particle size is about 100 m.
- the inorganic substance having an average particle diameter of less than 1 ⁇ m When the inorganic substance having an average particle diameter of less than 1 ⁇ m is applied to an agricultural house film together with a binder resin emulsion, it is dispersed as fine particles in the resin emulsion. Therefore, a strong inorganic film can be formed on the film, and its water resistance can be improved. However, there is a problem in the removability when unnecessary.
- an inorganic substance having an average particle diameter of 1 ⁇ m or more has poor water resistance when applied to an agricultural house film together with a binder resin emulsion.
- the water resistance and the removability are harmonized by mixing and using the both.
- inorganic substances having an average particle diameter of less than 1 ⁇ m inorganic substances having an average particle diameter of 1 m or more are required. It was found that the specific force should be within the range of 1: 0.5-2.
- the mixing ratio of the inorganic substance having an average particle diameter of less than 1 ⁇ m to the inorganic substance having an average particle diameter of 1 ⁇ m or more is less than 0.5, the water resistance as an agricultural light-shielding coating solution is reduced. If it is not enough or exceeds 2, the water resistance is sufficient, but the removability is not sufficient.
- these inorganic substances having different average particle diameters the above-mentioned various inorganic substances can be mentioned. Among them, it is preferable to use calcium carbonate or titanium oxide.
- the particle diameter of the inorganic substance is particularly Without limitation, those having an average particle diameter of less than 1 ⁇ m to those having an average particle diameter of about 100 ⁇ m can be widely used.
- the inorganic substance having an average particle diameter of less than Lm is applied to an agricultural house film together with a binder resin emulsion, the inorganic substance is dispersed in the resin as fine particles.
- a strong inorganic film can be formed thereon to improve the water resistance of the film, and there is a drawback in that the film is inferior in removal properties when it is no longer needed.
- the second and third embodiments of the present invention If there is, it can be used without any problems.
- the content of the powerful inorganic substance may be an amount capable of exhibiting a desired light-blocking effect as a light-blocking agent.
- the ratio of the resin component to the inorganic substance should be 1: 0.3-1: 15 in terms of the solid component ratio. That is, when the compounding ratio of the inorganic substance is less than 0.3, it becomes difficult to obtain a desired light-shielding effect, and even if added in excess of 15, no further light-shielding effect is obtained, and the water resistance is reduced. I do. Furthermore, it is not preferable because clogging easily occurs when the light-shielding agent is applied by spraying.
- the resin contained in the light-shielding coating solution is a light-shielding coating applied on the film.
- the resin that forms a resin film as a binder that dries the liquid and keeps the inorganic substance uniform is used.
- an aqueous resin emulsion having an acid value of 30 to 300 is preferably used.
- water-dispersible resins acrylic resin, urethane resin, vinyl resin, polyester resin, epoxy resin, etc.
- Water-dispersible acrylic resins and water-dispersible urethane resins having a value of 30 to 300 are preferably used.
- the acid value is related to the average number of free carboxylic acid groups per chain in the polymer binder, and the higher the acid value, the lower the water resistance and the higher the solubility in water. Become. Also, if the acid value is small, it has the property of being hardly soluble in water.
- a resin component having an acid value of 30 to 300 is used as the aqueous resin emulsion to ensure a certain level of water resistance and to maintain a necessary light-shielding coating film. The period can be satisfied.
- the coating film formed has a problem in water resistance, but it is not preferable because the coating film cannot be easily removed with a removing solution in terms of removability.
- the acid value is a large value exceeding 300, the water resistance of the resin film is reduced, and the performance as a light-shielding agent which can be coated over a long period of time is not preferred.
- the average particle size of the resin as the resin emulsion is preferably 0.01 to 0.5 ⁇ m. If the average particle size is less than 0.01 / zm, it cannot function as an emulsion, and if it exceeds 0.5 m, the resin applied on the film flows, which is not preferable. .
- the content of the resin emulsion in the light-shielding coating solution provided by the present invention has a balance with the mixing ratio with the inorganic substance to be mixed, and is 0% as the resin solid content with respect to 100 parts by weight of water. It is better to add 1-10 parts by weight. If the amount is less than 0.1 part by weight, the formation of a coating film on the film becomes insufficient.If the amount is more than 10 parts by weight, coating workability deteriorates and drying after coating takes time. On the other hand, the durability of the coating does not improve much and is not economical.
- the light-shielding coating liquid of the present invention may further contain, if necessary, a curing agent, a preservative, a thickener, a thickener, a dispersant, Surfactants, antioxidants, ultraviolet absorbers, light stabilizers, alcohols and the like can be added.
- any of those conventionally used as agricultural films can be used.
- the material of such a film include a polyvinyl chloride film, a polyester film, an acrylic resin film, a polyethylene film, and a polypropylene film. Film, polyurethane film, glass, and butyl acetate film.
- the resin constituting the Shii-Dani vinyl resin film for agricultural use a poly-Hida-Dani vinyl homopolymer, a Shi-Dani vinyl acetate acetate copolymer, and a Shi-Dani vinyl ethylene are used.
- the salted vinyl resin used may be a blended product with the following polymer.
- polymers include ⁇ -olefin polymers such as polyethylene, polypropylene, polybutene, and poly-3-methylbutene; polyolefins such as ethylene-vinyl acetate copolymer and ethylene-propylene copolymer; and copolymers thereof, and polystyrene.
- Acrylic resin copolymer of styrene and other monomers (for example, maleic anhydride, butadiene, Atari nitrile, etc.), acrylonitrile butadiene styrene copolymer, methacrylic acid ester butadiene styrene copolymer, Polyurethane and the like.
- these Shiridani vinyl based resin compositions if necessary, a plasticizer, a stabilizer, a lubricant, an anti-adhesive, an ultraviolet absorber, an antioxidant, and an inorganic emphasis agent
- various other additives can be added.
- these additives include various additives which are conventionally used as additives for the Shii-Daniel-based resin film, and the amount of the additives varies depending on the type. It is about 0.001 to 10 parts by weight based on 100 parts by weight of the dani vinyl resin.
- a plasticizer is added to the Shiridani butyl resin used in the present invention in order to impart flexibility to the butyl chloride resin.
- phthalic acid ester-based plasticizers such as undecyl phthalate and ditridecyl phthalate, and in particular, di-n-butyloctyl phthalate (DOP).
- plasticizers such as trixylyl phosphate (TXP), tricresyl phosphate, tris (isopropylphenolenate) phosphate, tributinolephosphate, trytineolephosphate, triphenylinophosphate, triethylphenol phosphate, etc. It is better to use a mixture of phosphate plasticizers.
- Shiridani vinyl resin composition for agricultural use as an agricultural Shiridani resin resin film
- a calendar method, an extrusion method, an inflation method, and the like which are widely used in the past, are widely used. It can be formed into a film by a known means.
- the resin constituting the agricultural olefin-based resin film used in the present invention includes low-density polyethylene, linear low-density polyethylene, medium-density polyethylene, high-density polyethylene, and meta-mouth catalyst.
- Polyethylene such as polyethylene polymerized by using; polypropylene such as random polymerized polypropylene, block polymerized polypropylene, isotactic polypropylene, and syndiotactic polypropylene; ethylene butyl acetate, ethylene-acrylic acid, ethylene acrylate, ethylene-methacrylic acid, It is an olefin resin such as an ethylene copolymer such as ethylene-methacrylic acid ester, and these alone or a mixture thereof can be used.
- an ethylene-a-one-year-old olefin copolymer (commonly known as meta-mouth propylene) obtained by copolymerizing ethylene and ⁇ -olefin having 4 to 10 carbon atoms using a meta-mouth catalyst.
- High-pressure radical method low-density polyethylene HP-LDPE
- ethylene and carbon atoms by Ziegler catalyst chromium oxide catalyst
- molybdenum oxide catalyst Ethylene-a-one-year-old olefin copolymer (LLDPE) obtained by copolymerizing ⁇ -olefin with the formula (4-120) is preferably used.
- the olefin resin film of the present invention may have a single layer structure or a multilayer structure!
- a multi-layer structure it is necessary to mix a hindered amine compound at least in the layer on the outside where the light-shielding agent is applied when the layer is spread on the house.
- a hindered amine compound may be blended in any layer of the multilayer structure.
- the type of resin constituting each layer may be the same or different, but the resin of adjacent layers is mutually different.
- the layer should be highly compatible or highly adhesive.
- the olefin resin as the outer layer is LLDPE
- the intermediate layer (and inner layer) laminated thereunder is methacrylic acid, maleic anhydride, or acrylic acid, which has good compatibility with LLDPE.
- modified low-density polyethylene high-density polyethylene, polypropylene, ethylene-butyl acetate copolymer (EVA), etc., ethylene-vinyl acetate copolymer having a content of 125-125% by weight of acetate ( Use EVA)! / ,.
- the resin based resin used in the present invention may contain various additives as long as the intended performance is not impaired.
- a lubricant particularly an amide-based lubricant.
- various additives such as various stabilizers, drip-proofing agents, anti-adhesion agents, ultraviolet absorbers, antioxidants, inorganic fillers and the like can be mentioned.
- the amount of these additives is about 0.01 to 10 parts by weight with respect to 100 parts by weight of the olefin resin, which varies depending on the type.
- At the time of applying the agricultural light-blocking agent at the time of applying the agricultural light-blocking agent, at least one of the above-described agricultural Shiridani-Bull-based resin films coated with the agricultural light-blocking agent is used.
- An acrylic resin copolymerized with a hydroxyl group-containing monomer is coated on the surface to form a coating film.
- the thickness of this coating film may be about 0.5-5 m. If the thickness of the coating is less than 0.5 m, the sustainability of the coating layer of the agricultural light-blocking agent applied on the coating cannot be improved. It cannot improve the performance.
- the coating is formed by the Gravi method or the like in the same production line or in a separate process. Preferably. After the film is spread on a burno, etc., the acrylic Even if a resin coating is provided, a uniform coating is not easily formed, resulting in poor workability.
- a crosslinker such as a terminal isocyanate-containing compound may be added to the acrylic resin in order to more firmly adhere the film and the coating film.
- Examples of the hydroxyl group-containing monomer constituting the acrylic resin obtained by copolymerizing the hydroxyl group-containing monomer forming the base layer include hydroxymethyl acrylate, 2-hydroxyethyl acrylate, 2-hydroxypropyl.
- Hydroxy acrylates such as acrylate, 3-hydroxypropyl acrylate, 2-hydroxybutyl acrylate, 4-hydroxybutyl acrylate, 2-hydroxypentyl acrylate, and 6-hydroxyhexyl acrylate; hydroxymethyl meta Tallylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, 3-hydroxypropyl methacrylate, 2-hydroxybutyl methacrylate, 4-hydroxybutynole methacrylate, 2-hydroxypentynole Me
- Examples include hydroxymethacrylic esters such as tatalylate and 6-hydroxyhexyl methacrylate.
- the surface provided with the acrylic resin coating film is applied by the agricultural light-shielding agent spray of the present invention or the like. Coating is usually performed on a film such as a bullnose, with the surface of the film on which the acrylic resin coating is provided facing outward, and then when the light-shielding property is required, the agricultural light-shielding of the present invention is applied to the film surface.
- the agent is applied to form a light-shielding layer. If light-shielding properties are required from the beginning, coating may be performed in the film production process before stretching or in a separate process, but the light-shielding layer is likely to be missing during the work stage during stretching, etc. Not so good.
- the agricultural film according to the third aspect of the present invention in which the agricultural light-blocking agent is applied, is obtained by adding a hindered amine compound to the agricultural film.
- the amount of the hindered amine compound to be added is preferably 0.05 to 0.3 part by weight in the case of Shii-Dani-Buru agricultural resin film. If the addition amount is less than 0.05, the durability of the light-shielding coating film formed on the film will not be improved, and if the addition amount exceeds 0.3, no further effect will be obtained. It becomes.
- a hindered amine compound is added in the case of an oil-based agricultural resin film.
- the addition amount is preferably 0.05 to 2 parts by weight. If the addition amount is less than 0.05, the durability of the light-shielding coating film formed on the film will not be improved, and if the addition amount exceeds 2 parts by weight, no further effect will be obtained without any effect. It becomes.
- Such hindered amine compounds include 2,2,6,6-tetramethyl-4-piberidyl stearate K 1,2,2,6,6-pentamethyl-4-pididyl stearate, 2,2,2 6,6-tetramethyl-4-piperidylbenzoate, N- (2,2,6,6-tetramethyl-4-piperidyl) dodecylsuccinimide, 1-[(3,5-di-tert-butyl-4-hydroxyphenyl) pulpio -Loxoshetyl] —2,2,6,6-tetramethyl-4-piperidyl (3,5 tert-butyl-4-hydroxyphenyl) propionate, bis (2,2,6,6-tetramethyl-4-pyridinole) sebacate , Bis (1,2,2,6,6 pentamethyl-4-piperidyl) sebacate, bis (1,2,2,6,6 pentamethyl-4-piperidyl) 2-butyl-2- (3,5-
- the agricultural resin film used in the present invention based on the above-described structure can be formed by a known method such as a calendar method, an extrusion method, an inflation method or the like, which has been widely used in the past. It is sufficient to make it lum. Processing conditions such as temperature for forming a film may be the same as those for producing a conventional agricultural resin film.
- the thickness of the film may be about 0.01-0.2 mm.
- the coating amount of the light-shielding coating liquid in which the light-shielding agent of the present invention for agricultural ⁇ films 0. 1- 50gZm 2 about the solids are preferred. When it is less than 0. lgZm 2, it is impossible to obtain a sufficient light blocking effect. If the amount exceeds 50 gZm 2 , it is not preferable because agricultural film drops also occur during the coating industry, due to resin drops.
- a light-shielding coating solution containing the inorganic substance of the present invention, having a fatty acid emulsion having an acid value of 30 to 300, and water as an aqueous solvent is sprayed or applied onto an agricultural film.
- an inorganic coating film having excellent water resistance can be formed, and the light-shielding effect can be easily obtained.
- the light-shielding coating becomes unnecessary, it can be easily removed with an alkali removing solution without using a large amount of an organic solvent.
- a light-shielding coating solution as an agricultural light-shielding agent of the present invention was obtained.
- the obtained light-shielding coating solution was spray-coated on an agricultural burhouse film, and the condition of the coating film, water resistance and removability of the coating film were evaluated according to certain criteria, and the results are shown in Table 1. Indicated.
- Inorganic substance 1 Average particle diameter less than 1 ⁇ m
- Inorganic substance 2 Average particle diameter of 1 ⁇ m or more
- Fat A Acrylic resin emulsion; acid value 60; solids 47%; resin average particle diameter 0.09 m; molecular weight 200,000 or more
- Fat content B Acrylic resin fat emulsion; acid value 200; solid content 32%; fat average particle size 0.16 m; molecular weight 200,000 or more
- Fat content C Acrylic fat emulsion; acid value 10; solid content 30%; fat average particle diameter 1 m; molecular weight 200,000 or more
- the coating film surface was rubbed with a finger, and the peeling state of the coating film was visually judged according to the following criteria.
- the removability was determined by spraying a light-shielding coating solution onto an agricultural film and drying, and then removing 100 parts by weight of water, 0.5 parts by weight of sodium hydroxide, 10 parts by weight of benzyl alcohol, and The film was sprayed with a removing solution having 0.2 parts by weight of sodium benzene sulfonate, and the easiness of dropping the coating film when water was further sprayed 5 minutes after spraying was visually judged according to the following criteria.
- a light-shielding coating solution as a light-shielding agent of a comparative example was obtained by the formulation (parts by weight) shown in Table 2 below.
- the obtained light-shielding coating solution was spray-coated on an agricultural burhouse film, and the condition of the coating film, the water resistance and the removability of the coating film were evaluated according to certain criteria, and the results were added together in Table 2. It was shown to.
- the light-shielding coating solution which is the light-shielding agent of the present invention, uses a resin emulsion as a binder. It is a blend of two types of inorganic substances with different particle diameters.By applying it to agricultural films, good light-shielding properties can be obtained, and the sprayed coating has good water resistance and water resistance. It turned out that it was excellent in its removability.
- the base layer coating composition (parts by weight) shown in Table 3 below was applied to Achilles Non-Kelly (vinyl chloride resin film) by a gravure method, and dried at 90 ° C for 30 seconds to obtain a base film.
- a light-shielding agent of the present invention was obtained according to the formulation (parts by weight) shown in Table 3 below.
- the obtained light-shielding agent was spray-coated on the base film, and the state of the coating film, the water resistance and the removability of the coating film were evaluated according to a certain standard, and the results are shown in Table 3. Indicated.
- Each light-shielding agent was sprayed to the film spread outdoors using a sprayer so as to be 30% light-shielded, and sprayed uniformly. After spraying, it was allowed to stand outdoors for about one month, and the degree of dropping of the light-shielding coating film was visually judged according to the following criteria.
- the coating film remains less than 60-80%.
- the coating film remains less than 40-60%.
- the coating film remains less than 10 to 40%.
- the coating film is less than 10% and no force remains.
- the removability of the light-shielding coating film was determined by spraying a light-shielding agent onto an agricultural film and drying it, and then removing it by one outdoor.
- a removing solution consisting of 100 parts by weight of water, 0.5 parts by weight of sodium hydroxide, 10 parts by weight of benzyl alcohol, and 0.2 parts by weight of sodium dodecylbenzenesulfonate was used as a removing solution.
- the film was sprayed, and the easiness of dropping of the coating film when water was further sprayed 5 minutes after spraying was visually judged according to the following criteria.
- ⁇ The coating film dropped by 60 to less than 80%.
- Mouth The coating dropped by less than 40-60%.
- ⁇ The coating film dropped by less than 10 to 40%.
- the light-shielding agent of the present invention is based on an acrylic resin emulsion copolymerized with a monomer having a hydroxyl group. It is understood that a spray film is applied or sprayed on a Shii-Dani vinyl-based agricultural resin film having a layer to form an inorganic coating film having excellent durability, and that the light-shielding effect is provided over a long period of time. (Examples 9-13).
- a polyvinyl chloride-based agricultural resin film (0.1 mm thick) was prepared by a calendar method.
- A 80% or more of the coating film dropped.
- ⁇ The coating film dropped by 60 to less than 80%.
- Mouth The coating dropped by less than 40-60%.
- ⁇ The coating film dropped by less than 10 to 40%.
- a polyvinyl chloride-based agricultural resin film (0.1 mm thick) was prepared by a calendar method.
- the light-shielding agent of the present invention is a shiridani vinyl-based agricultural resin film containing a hindered amine compound. It has been found that by applying the composition to the surface, good persistence of the light-shielding coating film was obtained. On the other hand, in the case of the Shiridani vinyl-based agricultural resin film of Comparative Example 12 containing no binder, the light-shielding agent of the present invention provided a light-shielding coating on the surface of the agricultural Shiridani vinyl resin film. could not be formed. Further, it is understood that the light-shielding coating film of the present invention has excellent removability when unnecessary.
- LLDPE 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 Methylene bisamide 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Benzofuunone UV absorber 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Feldspar (Average particle size 5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Hindered amine compound 111 1 0.1 0.5 1.0 2.0 3.0 2.0 2.0 0.5 1.0 2.0 Middle layer
- Hindered amine compound LA-63 (manufactured by Asahi Denka Kogyo KK)
- the agricultural light-blocking agent of the present invention was applied to an agricultural resin-based resin film containing a hindered amine compound, It turns out that good persistence of the light-shielding coating film was obtained.
- the light-shielding agent of the present invention provides a light-shielding agent on the surface of the agricultural resin-based vinyl resin film. A coating film could not be formed. Further, it was found that the light-shielding coating film of the present invention was excellent in removability when unnecessary.
- the binder as the agricultural light-blocking agent of the present invention is an aqueous resin binder, and the resin has an acid value of 300. It was found that the durability of the light-shielding coating film was not ensured in the case of a resin emulsion exceeding the above.
- the agricultural light-blocking agent applied to the agricultural film used in the house cultivation or the tunnel cultivation of the present invention is used for a long period of time so that the inorganic film is not washed away even by rainfall or the like. It is capable of forming a light-shielding coating film having excellent durability and capable of obtaining a light-shielding effect.
- the light-shielding coating when no longer required, it can be easily removed with an alkali removing solution without using a large amount of an organic solvent. This has the advantage of greatly reducing costs for farmers.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Laminated Bodies (AREA)
- Greenhouses (AREA)
- Protection Of Plants (AREA)
- Paints Or Removers (AREA)
Abstract
Description
Claims
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CN2005800086162A CN1934207B (zh) | 2004-03-16 | 2005-03-15 | 农业用遮光剂 |
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JP2004073860A JP4632679B2 (ja) | 2004-03-16 | 2004-03-16 | 遮光塗布液 |
JP2004209328A JP4632709B2 (ja) | 2004-07-16 | 2004-07-16 | 農業用遮光剤 |
JP2004-209329 | 2004-07-16 | ||
JP2004209329A JP4584642B2 (ja) | 2004-07-16 | 2004-07-16 | 農業用遮光剤 |
JP2004-209328 | 2004-07-16 | ||
JP2004-209327 | 2004-07-16 | ||
JP2004209327A JP4632708B2 (ja) | 2004-07-16 | 2004-07-16 | 農業用遮光剤の塗工方法 |
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CN105566828B (zh) | 2014-09-05 | 2018-09-14 | 韩国科学技术研究院 | 包含高分子胶囊的透明绝热材料及其制造方法 |
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US5880202A (en) * | 1996-04-11 | 1999-03-09 | Sumitomo Chemical Company, Limited | Black coating composition and application thereof |
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JP2002119148A (ja) | 2000-08-07 | 2002-04-23 | Kansai Paint Co Ltd | 植物栽培ハウス内の環境調節方法 |
JP2002127303A (ja) | 2000-10-25 | 2002-05-08 | Nisshin Steel Co Ltd | 温間加工性に優れた保護皮膜被覆ステンレス鋼板 |
-
2005
- 2005-03-15 WO PCT/JP2005/004480 patent/WO2005087885A1/ja active Application Filing
- 2005-03-15 TW TW94107771A patent/TWI425061B/zh active
- 2005-03-15 KR KR1020067018754A patent/KR101007165B1/ko active IP Right Grant
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JPH03127934A (ja) * | 1989-10-12 | 1991-05-31 | Sumitomo Cement Co Ltd | 農業用フィルム |
JPH06126918A (ja) * | 1992-10-20 | 1994-05-10 | Toyobo Co Ltd | 半透明積層ポリエステルフィルム |
JP2001224257A (ja) * | 2000-02-16 | 2001-08-21 | Mitsubishi Chem Mkv Co | 農業用塩化ビニル系樹脂フィルム |
JP2001279185A (ja) * | 2000-03-31 | 2001-10-10 | Sumitomo Chem Co Ltd | ガラス容器用被覆材 |
JP2002202584A (ja) * | 2000-12-28 | 2002-07-19 | Hitachi Ltd | フォトマスク、その製造方法、パターン形成方法および半導体装置の製造方法 |
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JP2004331797A (ja) * | 2003-05-07 | 2004-11-25 | Achilles Corp | 遮光塗布液および除去液 |
JP2005041985A (ja) * | 2003-07-22 | 2005-02-17 | Achilles Corp | 遮光塗布液 |
JP2005112967A (ja) * | 2003-10-07 | 2005-04-28 | Achilles Corp | 遮光塗布液 |
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TW200540239A (en) | 2005-12-16 |
KR101007165B1 (ko) | 2011-01-12 |
KR20060131885A (ko) | 2006-12-20 |
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