WO2014010625A1 - Agricultural multi-layered film - Google Patents
Agricultural multi-layered film Download PDFInfo
- Publication number
- WO2014010625A1 WO2014010625A1 PCT/JP2013/068859 JP2013068859W WO2014010625A1 WO 2014010625 A1 WO2014010625 A1 WO 2014010625A1 JP 2013068859 W JP2013068859 W JP 2013068859W WO 2014010625 A1 WO2014010625 A1 WO 2014010625A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- film
- polyolefin
- agricultural
- multilayer film
- component
- Prior art date
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
- 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
- A01G13/0275—Films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
Definitions
- the present invention suppresses a decrease in translucency due to the formation of condensation on the film surface outside the house immediately after the film is spread on the house to prevent a decrease in cultivatability due to a lack of light quantity, and workability due to static electricity during film processing It is related with the polyolefin-type multilayer film for agriculture which prevents the fall of this.
- agricultural vinyl chloride films (hereinafter referred to as agricultural bi), polyethylene, ethylene-vinyl acetate copolymers, and polyolefins have been used in order to enhance agricultural marketability and productivity by semi-forcing or suppressing cultivation of agricultural crops.
- So-called house cultivation and tunnel cultivation are actively carried out to grow useful plants under the covering with agricultural covering materials such as agricultural polyolefin-based resin films (hereinafter referred to as agricultural poly and agricultural vinegar) mainly composed of resin.
- agricultural polyolefin-based resin film mainly composed of polyolefin-based resin is light because its density is smaller than that of vinyl chloride resin, and generates little toxic gas even when incinerated.
- Wide-width films that do not require adhesive processing have been actively used because they can be provided at low cost, and have come to be used in a form that replaces traditionally used agricultural bean.
- the type of anti-fogging coating on the inner film surface of the house can provide anti-fogging properties for a long period of time, and research is actively underway.
- anti-fogging agent kneading type to anti-fogging agent coating type
- there is a problem of poor translucency due to condensation on the outer surface of the house which did not occur with conventional anti-fogging agent kneading type films. There was a case.
- the water repellency of polyolefin resin in the initial stage of expansion causes condensation on the outer surface of the house, resulting in a problem of deterioration of cultivation due to less light entering the house. It was.
- the poor translucency due to water repellency on the film surface is alleviated by dirt and dust on the film surface over time, but when it is expanded in the winter, the period from the expansion is short. In some cases, light transmissivity cannot be ensured when light is needed, which causes a practical problem.
- the inventor has found that at least the outer layer of the base film contains a fluorosurfactant component and a fine particle component having an average particle size of 1.0 ⁇ m or more, and the inner surface of the base film has a synthetic resin.
- the present invention has been completed by finding that the above-mentioned problems can be solved in an agricultural polyolefin-based multilayer film characterized by providing an anti-fogging coating film layer mainly composed of a binder and / or an inorganic colloid sol. Furthermore, it has been found that by using a specific type of fluorine-based surfactant component, an agricultural polyolefin-based multilayer film having no environmental impact can be provided.
- the present invention (1) At least an outer layer of a substrate film having at least an outer layer, an intermediate layer, and an inner layer and containing a polyolefin-based resin contains a fluorosurfactant component and a fine particle component having an average particle diameter of 1.0 ⁇ m or more,
- a polyolefin multilayer multilayer film for agricultural use characterized in that a synthetic resin binder and an inorganic colloid sol, or an antifogging coating layer mainly composed of an inorganic colloid sol is provided on the inner layer side surface of the material film,
- Agricultural polyolefin multilayer film as described in (In the formula, R1 and R2 each independently represent a hydrogen atom or a methyl group, and R3 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.) Is provided.
- the present invention suppresses a decrease in translucency due to condensation that occurs on the outer surface of the house immediately after spreading, can be used without causing a decrease in cultivatability due to insufficient light quantity in the house, and is excellent in antistatic performance at a processing place
- a polyolefin-based multilayer film can be provided.
- by using a specific type of fluorine-based surfactant component it is possible to provide an agricultural polyolefin-based multilayer film that does not affect the environment.
- the agricultural film of the present invention may be transparent, satin or semi-satin, and can be suitably used for agricultural film (so-called agricultural PO) for house, tunnel, mulching, bag hanging, etc. it can.
- the agricultural polyolefin-based multilayer film (hereinafter also referred to as “the agricultural film of the present invention”) in the present invention is characterized in that a surfactant is contained in the outer layer of the base film.
- the base film refers to a polyolefin-based multilayer film before an antifogging coating film or the like is formed, and is composed of at least two layers.
- the base film is preferably composed of three layers of an outer layer, an intermediate layer, and an inner layer, but may include more layers.
- the layer facing the outside of the house is called an outer layer
- the layer facing the inside of the house is called an inner layer.
- the present inventors have found that the effect of suppressing water repellency immediately after stretching is high particularly when a fluorine-based surfactant component is used.
- the fluorosurfactant include surfactants in which a part or all of them are substituted with F instead of H bonded to C of the hydrophobic group of a normal surfactant.
- a surfactant containing a fluoroalkenyl group can be used individually or in combination of 2 or more types.
- fluorine-containing compound having a perfluoroalkyl group examples include an anionic fluorine-containing surfactant, a cationic fluorine-containing surfactant, an amphoteric fluorine-containing surfactant, a nonionic fluorine-containing surfactant, and a fluorine-containing oligomer.
- the fluorosurfactant component contains a perfluoroalkylethylene oxide adduct or a perfluoroalkylpropylene oxide adduct.
- the perfluoroalkylethylene oxide adduct or the perfluoroalkylpropylene oxide adduct is preferably a perfluoroalkyl group (C 5 F 11 ⁇ having 5 to 10 carbon atoms, more preferably 5 to 8 carbon atoms). -C 8 F 17 -group).
- PFOA perfluorooctanoic acid
- C 7 F 15 COOH perfluorooctanoic acid
- PFOA has environmental persistence and is slowly discharged from the living body when ingested by the living body. Therefore, there is a possibility of accumulation.
- perfluoroalkylethylene oxide adducts or perfluoroalkylpropylene oxide adducts having a perfluoroalkyl group having 5 to 6 carbon atoms (C 5 F 11 — to C 6 F 13 — group) do not contain PFOA.
- the environmental persistence is low, so it does not remain in the soil and is excellent in the environment, and the water repellency is suppressed immediately after spreading. It is particularly preferable because of its high effect.
- the content of the fluorosurfactant component is preferably 0.001 to 5.0% by weight, more preferably 0.01 to 3.0% with respect to 100% by weight of the polyolefin resin in the outer layer of the base film. % By weight. If the content of the fluorine-containing surfactant component is less than 0.001% by weight, the water repellency suppressing effect is hardly exhibited, and if it exceeds 5.0% by weight, the effect is saturated, which is not preferable.
- the above fluorosurfactant component is effective when contained in the outer layer of the base film. For example, even if the material added to the intermediate layer is bleed out (transferred and precipitated) and contained substantially in the outer layer of the base film, the same effect will be exhibited, so regardless of which layer was added at the time of manufacture. As a result, it is sufficient that the surfactant is contained in the above amount in the outer layer of the film.
- a fluorine-type surfactant component can also be used in combination with another surfactant.
- Other surfactants that can be used in combination with the fluorosurfactant component include various known nonionic surfactants, anionic surfactants, cationic surfactants, and other polyvalent surfactants.
- a polyhydric alcohol partial ester-based compound composed of alcohol and higher fatty acids and a silicone-based surfactant are preferred.
- Specific examples of such surfactants include, for example, nonionic surfactants such as sorbitan palmitate, alkylene oxide adducts of sorbitan palmitate, sorbitan stearate, alkylene oxide addition of sorbitan stearate.
- sorbitan palmitate alkylene oxide adduct of sorbitan palmitate, sorbitan stearate, alkylene oxide adduct of sorbitan stearate, polyoxyalkylene sorbitan fatty acid ester, sorbitan alkylene oxide adduct and sorbitan monopalmitin Sorbitan surfactants such as acid esters are preferred.
- the alkylene oxide to be added is preferably ethylene oxide or propylene oxide.
- sorbitan antifogging agents sorbitan palmitate 0.5 mol propylene oxide adduct, polyoxypropylene sorbitan fatty acid ester, sorbitan monostearate 0.5 mol propylene oxide adduct, sorbitan mono Palmitic acid esters are particularly preferred.
- the synergistic effect with the fluorosurfactant component can be exhibited by containing the other surfactant in the outer layer of the base film.
- the material added to the intermediate layer is bleed out (transferred and precipitated), and even if it is substantially contained in the outer layer of the base film, the same effect is exhibited. Regardless of whether or not it exists, it is sufficient that the other surfactant is contained in the outer layer of the film as a result.
- the agricultural film of the present invention is characterized in that a fine particle component having an average particle diameter of 1.0 ⁇ m or more is contained in at least the outer layer of the base film.
- the fine particle component having an average particle diameter of 1.0 ⁇ m or more include inorganic fine particles and organic fine particles.
- the inorganic fine particles an inorganic filler containing at least one selected from Si, Mg, Al, Li, and Ca as a constituent element component can be used.
- diatomaceous earth, natural silica, synthetic silica, talc, mica, zeolite, and the like that can be usually used as an antiblocking agent can be suitably used.
- the organic fine particles for example, polymer beads mainly composed of a thermoplastic resin can be used.
- the average particle size of the fine particle component is preferably 1.0 to 30 ⁇ m, more preferably 1.0 to 20 ⁇ m, and particularly preferably 5.0 to 20 ⁇ m.
- the average particle size is smaller than 1.0 ⁇ m, the opening property is not sufficient, and when it is larger than 30 ⁇ m, the translucency of the multilayer film is lowered.
- the average particle diameter of the fine particle component is suitably measured using a laser diffraction method.
- the fine particle component is contained in the outer layer and the inner layer of the base film.
- the content of the inorganic fine particles is 0.001 to 2.0% by weight, preferably 0.01 to 1.0% by weight, more preferably 0.1% to 100% by weight of the polyolefin resin in the outer layer of the base film. 0.5% by weight.
- the content of the inorganic fine particles in the inner layer of the base film is 0.001 to 4.0% by weight, preferably 0.01 to 2.0% by weight with respect to 100% by weight of the polyolefin resin in the layer. %, More preferably 0.1 to 1.0% by weight.
- the agricultural film of the present invention is characterized in that an antifogging coating layer mainly composed of a synthetic resin binder and an inorganic colloid sol or an inorganic colloid sol is formed in contact with the innermost layer of the polyolefin base film.
- an antifogging coating layer mainly composed of a synthetic resin binder and an inorganic colloid sol or an inorganic colloid sol is formed in contact with the innermost layer of the polyolefin base film.
- the agricultural film of the present invention can form an antifogging coating film and other coating films.
- the antifogging coating film may be formed on the inner layer side surface and the dustproof coating film may be formed on the outer layer side surface.
- the effect of improving the adhesion of the coating film which is the effect of the present invention, may be obtained for the dust-proof coating film.
- the antifogging coating film in the present invention examples include a composition mainly composed of a binder resin such as an inorganic colloidal sol and / or a thermoplastic resin.
- a binder resin such as an inorganic colloidal sol and / or a thermoplastic resin.
- an antifogging coating film mainly comprising an inorganic colloid substance and a hydrophilic organic compound or an antifogging coating film comprising an inorganic colloid substance and an acrylic resin as main components can be used.
- the binder resin may not be added, and an inorganic material such as colloidal silica or colloidal alumina may be laminated.
- the inorganic colloid sol used in the present invention has a function of imparting hydrophilicity to the surface of the film by applying it to the surface of the hydrophobic polyolefin resin film.
- inorganic colloidal sol inorganic aqueous colloidal particles such as silica, alumina, water-insoluble lithium silicate, iron hydroxide, tin hydroxide, titanium oxide, barium sulfate were dispersed in water or a hydrophilic medium by various methods.
- aqueous sols Among these, silica sol and alumina sol are preferably used, and these may be used alone or in combination.
- the inorganic colloidal sol it is preferable to select an average particle size in the range of 5 to 100 nm. Within this range, two or more colloidal sols having different average particle sizes may be used in combination. If the average particle size is too large, the coating may be devitrified in white, and if the average particle size is too small, the stability of the inorganic colloidal sol may be unfavorable.
- the inorganic colloidal sol is blended in an amount of 0.2 to 5 and preferably 0.5 to 4 in terms of a solid weight ratio with respect to the total solid weight of the binder resin composition. That is, when the blending amount is too small, a sufficient antifogging effect may not be exhibited. On the other hand, when the blending amount is too large, the antifogging effect is not easily improved in proportion to the blending amount.
- the film formed later becomes cloudy and causes a phenomenon that the light transmittance of the film is lowered, and the film may be coarse and brittle, which is not preferable.
- binder resin examples include acrylic resins, epoxy resins, urethane resins, polyester resins, and the like, in particular, acrylic resins and / or urethane resins, from the compatibility with the polyolefin base film of the present invention. It is preferable to use a resin, more preferably from (a) a hydrophilic acrylic polymer, (c) a hydrophobic acrylic resin, (e) a hydrophobic acrylic resin, and a polyurethane emulsion. Each has its own attributes and is preferred.
- acrylic resin examples include (a) one made of a hydrophilic acrylic polymer, (b) one made of a block copolymer containing a hydrophobic molecular chain block and a hydrophilic molecular chain block in one molecule, (c ) Among those composed of a hydrophobic acrylic resin, (a) is particularly preferable because it is excellent in compatibility with the base film of the present invention in terms of early antifogging wetness, while (c) is preferred. It is excellent in compatibility with the substrate film of the present invention and is preferable.
- a hydroxyl group-containing vinyl monomer component is a main component (preferably 60 wt% to 99.9 wt%, more preferably 65 wt% to 95 wt%), acid Examples thereof include a copolymer containing 0.1 to 30% by weight of a group-containing vinyl monomer component, a partially neutralized product or a completely neutralized product thereof.
- the hydroxyl group-containing vinyl monomer component include hydroxyalkyl (meth) acrylates such as hydroxymethyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, and 2-hydroxypropyl (meth) acrylate. However, it is not limited to these. These may be homopolymers, or may be copolymers of these hydroxyalkyl (meth) acrylates as main components and other monomers that can be copolymerized therewith.
- Examples of the acid group-containing monomer copolymerizable with these hydroxyalkyl (meth) acrylates include carboxylic acids, sulfonic acids, and phosphonic acids, and (meth) acrylic acid belonging to carboxylic acids is particularly preferable.
- copolymer components examples include styrene, vinyl toluene, vinyl chloride, vinylidene chloride, vinyl oxide, (meth) acrylic acid esters, N, N-dimethylaminoethyl (meth) acrylamide, vinyl pyridine and the like. .
- hydrophobic acrylic resin (c) at least a total of 60% by weight of a monomer comprising an alkyl ester of acrylic acid or methacrylic acid, or a single unit of an alkyl ester of acrylic acid or methacrylic acid and an alkenylbenzene.
- a monomer mixture and 0 to 40% by weight of a copolymerizable ⁇ , ⁇ -ethylenically unsaturated monomer are obtained by emulsion polymerization in an aqueous medium in the presence of an emulsifier, for example, according to ordinary polymerization conditions. And water dispersible polymers or copolymers.
- alkyl esters of acrylic acid or methacrylic acid used for the production of hydrophobic acrylic resins include acrylic acid methyl ester, acrylic acid ethyl ester, acrylic acid-n-propyl ester, acrylic acid isopropyl ester, acrylic acid-n- Examples thereof include butyl esters.
- alkyl acrylates having 1 to 20 carbon atoms and / or methacrylic acid alkyl esters having 1 to 20 carbon atoms are used.
- alkenylbenzenes include styrene, ⁇ -methylstyrene, vinyltoluene and the like.
- Examples of ⁇ , ⁇ -ethylenically unsaturated monomers used for obtaining hydrophobic acrylic resins include ⁇ , ⁇ such as acrylic acid, methacrylic acid, maleic acid, maleic anhydride, fumaric acid, crotonic acid, and itaconic acid.
- -Ethylenically unsaturated carboxylic acids ⁇ , ⁇ -ethylenically unsaturated sulfonic acids such as ethylene sulfonic acid; 2-acrylamido-2-methylpropanoic acid; ⁇ , ⁇ -ethylenically unsaturated phosphonic acids; acrylic acid or methacrylic acid Hydroxyl group-containing vinyl monomers such as hydroxyethyl; acrylonitriles; acrylic amides; glycidyl esters of acrylic acid or methacrylic acid, and the like.
- These monomers may be used alone or in combination of two or more, and are preferably used in the range of 0 to 40% by weight. If the amount used is too large, the antifogging performance may be lowered, which is not preferable.
- the acrylic resin is a known emulsifier, for example, an anionic surfactant, a cationic surfactant, or a nonionic surfactant, in the presence of one or more kinds in an aqueous medium. It can be obtained by a method of emulsion polymerization, a method of polymerization using a reactive emulsifier, a method of polymerizing based on an oligo soap theory without containing an emulsifier.
- Examples of the polymerization initiator preferably used for the production of the acrylic resin include persulfates such as ammonium persulfate and potassium persulfate. These can be used in the range of 0.1 to 10% by weight based on the total amount of monomers charged.
- a hydrophobic acrylic resin having a glass transition temperature of 35 to 80 ° C. If the glass transition temperature is too low, the inorganic colloidal particles are agglomerated several times and tend to be in a non-uniform dispersion state. If it is too high, it is difficult to obtain a transparent uniform coating.
- the hydrophobic acrylic resin used in the present invention is preferably used as an aqueous emulsion.
- An aqueous emulsion obtained by polymerization of each monomer in an aqueous medium may be used as it is, or may be diluted by adding a liquid dispersion medium to this, and also produced by the above polymerization.
- a polymer may be collected separately and re-dispersed in a liquid dispersion medium to form an aqueous emulsion.
- examples of (d) urethane-based resins include polyether-based, polyester-based, and polycarbonate-based anionic polyurethane aqueous compositions and emulsions.
- Polycarbonate anionic polyurethane emulsion is preferred in terms of water resistance, water resistance and scratch resistance, and further increases the water resistance and scratch resistance of anti-fogging coating film, as well as the time until the antifogging property is developed and the antifogging duration.
- a polycarbonate-based anionic polyurethane emulsion containing a silanol group is more preferable. These may be used alone or in combination of two or more.
- a polycarbonate-based anionic polyurethane emulsion containing a silanol group comprises a polyurethane resin containing at least one silanol group in the molecule and a strongly basic tertiary amine as a curing catalyst.
- a colloidal dispersion system emulsion in which the silanol group-containing polyurethane resin and the strongly basic tertiary amine are dissolved in the aqueous phase, or a colloidal dispersion system in which fine particles are dispersed.
- the aqueous polyurethane composition is preferably 0.01 or more and 2 or less, more preferably 0.01 or more and 1 or less, based on the hydrophobic acrylic resin in terms of solid content by weight.
- it is less than 0.01, it is difficult to improve the scratch resistance, and it takes a long time until the antifogging property is exhibited, and it is difficult to exhibit a sufficient antifogging effect.
- it is too much, not only the scratch resistance is difficult to improve in proportion to the blending amount, but the coating film formed after coating tends to become cloudy and lower the light transmittance, which is also disadvantageous in terms of cost. It is not preferable.
- an anionic surfactant such as can be added.
- a cationic surfactant such as can be added.
- a nonionic surfactant such as can be added.
- a surfactant such as can be added. The following can be used as such a surfactant.
- Anionic surfactants include fatty acid salts such as sodium oleate and potassium oleate; higher alcohol sulfates such as sodium lauryl sulfate and ammonium lauryl sulfate; alkylbenzene sulfones such as sodium dodecylbenzenesulfonate and sodium alkylnaphthalenesulfonate Acid salt and alkyl naphthalene sulfonate salt; naphthalene sulfonic acid formalin condensate; dialkyl sulfosuccinate salt; dialkyl phosphate salt; polyoxyethylene sulfate salt such as sodium polyoxyethylene alkyl ether sulfate, sodium polyoxyethylene alkyl phenyl ether sulfate, etc. Can be mentioned.
- Cationic surfactants include: ethanolamines; laurylamine acetate, triethanolamine monostearate formate; amine salts such as stearamide ethyl diethylamine acetate; lauryltrimethylammonium chloride, stearyltrimethylammonium chloride, dilauryldimethyl And quaternary ammonium salts such as ammonium chloride, distearyldimethylammonium chloride, lauryldimethylbenzylammonium chloride, and the like.
- Nonionic surfactants include polyoxyethylene higher alcohol ethers such as polyoxyethylene lauryl alcohol, polyoxyethylene lauryl ether and polyoxyethylene oleyl ether; polyoxyethylene such as polyoxyethylene octylphenol and polyoxyethylene nonylphenol.
- Alkylaryl ethers such as polyethylene glycol monostearate; polypropylene glycol ethylene oxide adducts; sorbitan fatty acid esters such as sorbitan monostearate, sorbitan monopalmitate, sorbitan monobenzoate; diglycerin monopalmi Diglycerol fatty acid esters such as tate and diglycerol monostearate; glycerol monostearate Glycerin fatty acid esters such as pentaerythritol monostearate; pentaerythritol fatty acid esters such as dipentaerythritol monopalmitate; dipentaerythritol fatty acid esters such as dipentaerythritol monopalmitate; sorbitan monopalmitate half adipate Sorbitan such as half glutamic acid ester and diglycerin fatty acid / dibasic acid esters; or condensates thereof with
- polymer surfactant examples include polyacrylate, polymethacrylate, and cellulose ethers.
- the addition of the surfactant can easily and quickly disperse the binder resin and the inorganic colloid sol, and when used in combination with the inorganic colloid sol, imparts hydrophilicity to the surface of the hydrophobic polyolefin resin film. Fulfills the function.
- the addition amount of the surfactant is preferably selected in the range of 0.1 to 50 parts by weight with respect to 100 parts by weight of the solid content of the resin. If the amount of the surfactant added is too small, it takes time to sufficiently disperse the resin and the inorganic colloid sol, and the antifogging effect in combination with the inorganic colloid sol cannot be sufficiently exhibited. If the amount added is too large, the transparency of the coating will decrease due to the bleed-out phenomenon on the coating surface formed after coating, and if it is noticeable, it may cause deterioration of the blocking resistance of the coating or decrease the water resistance of the coating. .
- a crosslinking agent When preparing an antifogging agent composition for forming the antifogging coating film of the present invention, a crosslinking agent can be added.
- the crosslinking agent is particularly effective in crosslinking acrylic resins to improve the water resistance of the coating.
- examples of the crosslinking agent include phenol resins, amino resins, amine compounds, aziridine compounds, azo compounds, isocyanate compounds, epoxy compounds, silane compounds, etc., but particularly amine compounds and aziridine compounds. Epoxy compounds can be preferably used.
- a liquid dispersion medium can be blended as necessary.
- a liquid dispersion medium includes a hydrophilic or water-miscible solvent containing water, water; monohydric alcohols such as methyl alcohol, ethyl alcohol, and isopropyl alcohol; polyhydric alcohols such as ethylene glycol, diethylene glycol, and glycerin. Examples: cyclic alcohols such as benzyl alcohol; cellosolve acetates; ketones and the like.
- These liquid dispersion media may be used alone or in combination.
- the antifogging agent composition prepared in the present invention is further mixed with conventional additives such as an antifoaming agent, a plasticizer, a film forming aid, a thickener, a pigment, and a pigment dispersant.
- conventional additives such as an antifoaming agent, a plasticizer, a film forming aid, a thickener, a pigment, and a pigment dispersant.
- a binder component other than the acrylic resin for example, a polyether-based, polycarbonate-based, or polyester-based water-dispersible urethane resin may be mixed.
- a solution or a dispersion of an antifogging composition is applied to a doctor blade coating method, a roll coating method, a dip coating method, a spray coating method, or a rod coating method, respectively.
- a known coating method such as a bar coating method, a knife coating method, or a brush coating method may be employed and dried after coating.
- the drying method after coating may be either natural drying or forced drying. When the forced drying method is employed, it is usually 50 to 250 ° C., preferably 70 to 200 ° C. Good.
- an appropriate method such as a hot air drying method, an infrared drying method, a far infrared drying method, and an ultraviolet curing method may be employed, and it is advantageous to adopt the hot air drying method in consideration of the drying speed and stability. is there.
- the thickness of the coating film formed on the inner layer side surface of the film may be selected with 1/10 or less of the base film as a guide, but is not necessarily limited to this range. If the thickness of the coating is larger than 1/10 of the base film, there is a difference in flexibility between the base film and the coating, so that a phenomenon such as peeling of the coating from the base film is likely to occur. The phenomenon that a crack occurs in the coating and the strength of the base film is lowered is not preferable.
- the substrate film may be subjected to a surface treatment.
- the treatment method applied to the surface of the multilayer film of the present invention include corona discharge treatment, sputter etching treatment, sodium treatment, and sandblast treatment.
- corona discharge treatment method discharge is performed between a needle-like or knife-edge electrode and a counter electrode, and a sample is placed between the electrodes, and the film surface contains oxygen such as aldehyde, acid, alcohol peroxide, ketone, ether, etc. This is a process for generating a functional group.
- sputter etching process a sample is placed between electrodes that are performing low-pressure glow discharge, and a large number of fine protrusions are formed on the film by the impact of positive ions generated by the glow discharge.
- fine sand is sprayed on the film surface to form a large number of fine irregularities on the surface.
- corona discharge treatment is preferable from the viewpoints of adhesion to the coating layer, workability, safety, cost, and the like.
- polyolefin resin used in the present invention examples include ⁇ -olefin homopolymers, copolymers with different monomers mainly composed of ⁇ -olefins, ⁇ -olefins and conjugated dienes or non-conjugated dienes, etc. And polyunsaturated compounds, copolymers with acrylic acid, methacrylic acid, vinyl acetate, etc., such as high density, low density or linear low density polyethylene, polypropylene, ethylene-propylene copolymer, ethylene- Examples include butene copolymer, ethylene-4-methyl-1-pentene copolymer, ethylene-vinyl acetate copolymer, and ethylene-acrylic acid copolymer.
- low density polyethylene having a density of 0.910 to 0.935, ethylene- ⁇ -olefin copolymer, and ethylene-vinyl acetate copolymer having a vinyl acetate content of 30% by weight or less are transparent and weather resistant. It is preferable as an agricultural film from the viewpoint of properties and price.
- an ethylene- ⁇ -olefin copolymer resin obtained by copolymerization with a metallocene catalyst can be used as at least one component of the polyolefin resin.
- metallocene polyethylene This is usually referred to as metallocene polyethylene, and is a copolymer of ethylene and an ⁇ -olefin such as butene-1, hexene-1, 4-methylpentene-1, octene and the like.
- Method A JP 58-19309, JP 59-95292, JP 60-35005, etc.
- B JP 6-9724, JP 6-136195, No. 6-136196.
- a polyolefin resin polymerized by using a metallocene compound, that is, a metallocene polyethylene, is not limited to the above methods (A) and (B) in that good initial transparency and transparency persistence of the film can be obtained. Can be used.
- thermo rise elution fractionation MFR
- density density
- molecular weight distribution various other physical properties.
- Measurement of elution curve by temperature rise elution fractionation is described in "Journal of Applied Polymer Science. This is carried out based on the principle described in the literature such as “Showa 63”.
- the ethylene- ⁇ -olefin copolymer used as at least one component of the polyolefin resin of the present invention has an MFR measured by JIS-K7210 of 0.01 to 10 g / 10 min, preferably 0.1 to 5 g / A value of 10 minutes is shown. If the MFR is larger than this range, the film meanders during molding and is not stable. On the other hand, if the MFR is too smaller than this range, the resin pressure at the time of molding increases and a load is applied to the molding machine. Therefore, the increase in pressure must be suppressed by reducing the production amount, which is not practical.
- the ethylene- ⁇ -olefin copolymer used as at least one component of the polyolefin resin of the present invention has a density measured by JIS-K7112 of 0.880 to 0.930 g / cm 3 , preferably 0.8. A value of 880 to 0.920 g / cm 3 is shown. When the density is larger than this range, the transparency is deteriorated. On the other hand, if the density is smaller than this range, blocking occurs due to stickiness of the film surface, resulting in poor practicality.
- the ethylene- ⁇ -olefin copolymer used as at least one component of the polyolefin resin of the present invention has a molecular weight distribution (weight average molecular weight / number average molecular weight) determined by gel permeation chromatography (GPC).
- the value is 1.5 to 3.5, preferably 1.5 to 3.0.
- the molecular weight distribution is larger than this range, the mechanical strength is lowered, which is not preferable. If the molecular weight distribution is smaller than this range, the film meanders during molding and is not stable.
- the ethylene-vinyl acetate copolymer resin used in the present invention has a vinyl acetate content in the range of 10 to 25% by weight, preferably in the range of 12 to 20% by weight. If the vinyl acetate content is less than this range, the resulting film will be hard and will tend to wrinkle and sag when stretched in a house, which will have a negative effect on anti-fogging properties. If it is larger than the range, the melting point of the resin is low, so that the film loosens at high temperatures in summer during house extension, and is easily broken by wind and flapping with the house structure.
- the present invention provides an agricultural film that is excellent in long-term weather resistance and bleed-out resistance by using an ethylene / cyclic aminovinyl compound copolymer, and is less susceptible to a decrease in translucency due to condensation with suppressed surface water repellency. Can be obtained.
- the ethylene / cyclic aminovinyl compound copolymer has an effect as a light stabilizer that significantly improves long-term weather resistance as compared with a hindered amine weathering agent used in general agricultural films.
- the copolymer of ethylene (A) and cyclic aminovinyl compound (B) of the present invention (hereinafter referred to as “ethylene / cyclic aminovinyl compound copolymer”) is composed of ethylene (A) and the compound of formula (1). Copolymers can be used. When the ethylene / cyclic aminovinyl compound copolymer is added in a large amount, the surface properties (water droplet contact angle, etc.) of the polyolefin film of the film can be changed, and can be suitably used for the purpose of the present invention. Furthermore, when one or more layers of the base film contain an ethylene / cyclic aminovinyl compound copolymer, the coating film adhesion is improved when an antifogging coating film is formed on the base film. Is preferable.
- R1 and R2 each independently represent a hydrogen atom or a methyl group
- R3 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.
- R1 and R2 are each a methyl group and R3 is a hydrogen atom.
- the vinyl compound (B) represented by the formula (1) can be synthesized by a known method, for example, the method described in JP-B-47-8539, JP-A-48-65180, or the like.
- vinyl compound (B) represented by the formula (1) include 4-acryloyloxy-2,2,6,6-tetramethylpiperidine, 4-acryloyloxy-1,2,2,6,6. -Pentamethylpiperidine, 4-acryloyloxy-1-ethyl-2,2,6,6-tetramethylpiperidine, 4-acryloyloxy-1-propyl-2,2,6,6-tetramethylpiperidine, 4-acryloyl Oxy-1-butyl-2,2,6,6-tetramethylpiperidine, 4-methacryloyloxy-2,2,6,6-tetramethylpiperidine, 4-methacryloyloxy-1,2,2,6,6- Pentamethylpiperidine, 4-methacryloyloxy-1-ethyl-2,2,6,6-tetramethylpiperidine, 4-methacryloyloxy-1-buty -2,2,6,6-tetramethylpiperidine, 4-crotonoyloxy-2,2,6,6-tetramethylpiperidine, 4-
- the ethylene / cyclic aminovinyl compound copolymer preferably has a ratio of the (B) to the sum of the ethylene (A) and the cyclic aminovinyl compound (B) of 0.0005 to 0.85 mol%, More preferred is 0.001 to 0.55 mol%. That is, the preferred copolymer is one having a high light stability for a low content of the vinyl monomer having a hindered amine group in the side chain (cyclic aminovinyl compound (B)). When the concentration of the cyclic aminovinyl compound (B) is 0.0005 mol%, a sufficient light stabilizing effect is exhibited. On the other hand, when it exceeds 0.85 mol%, it tends to be substantially uneconomical.
- the ethylene / cyclic aminovinyl compound copolymer is such that (B) is not continuous in two or more in the copolymer, and the ratio of being isolated is 83% or more based on the total amount of (B), Preferably it is 90% or more.
- the proportion of the hindered amine group-containing vinyl monomers having two or more hindered amine groups that are estimated as described above is not continuous but is present in an isolated state of 83% or more based on the total amount of vinyl monomers (B) in the copolymer. Is preferred. If the proportion of vinyl monomers having hindered amine groups in the side chain is less than 83% without two or more vinyl monomers having hindered amine groups in the side chain, the light stability is relatively high In some cases, the feature of having
- the MFR (measured in accordance with JIS-K6760 (190 ° C., 2.16 kg load)) of the ethylene / cyclic aminovinyl compound copolymer is 0.1 to 200 g / 10 min, preferably 0.5 to It is 20 g / 10 minutes, more preferably 1 to 5 g / 10 minutes.
- the compatibility with the polyolefin resin is poor, and when blended, it causes visible defects in film applications such as fish eyes and boots.
- the MFR exceeds the above range, even if the copolymer has a large molecular weight, bleeding or blooming due to diffusion loss occurs, or when it is blended with a polyolefin resin, it causes a decrease in strength of the resulting resin composition. It becomes.
- the ethylene / cyclic aminovinyl compound copolymer was determined by creating a calibration curve with monodisperse polystyrene using GPC.
- the Mw / Mn (Q value) expressed as the ratio of the weight average molecular weight to the number average molecular weight is preferably in the range of 3 to 120. A particularly preferred range is 5-20.
- the content of the ethylene / cyclic aminovinyl compound copolymer in the agricultural polyolefin-based multilayer film of the present invention is preferably 0.5 to 15 parts by weight with respect to 100 parts by weight of the polyolefin-based resin in all layers.
- the amount is preferably 0.5 to 10 parts by weight. If this content is less than the above range, the weather resistance is inferior because it is inferior, and if it exceeds the above range, it is not preferable in terms of economy.
- Examples of commercially available ethylene / cyclic aminovinyl copolymers that can be used include Novatec® LD / XJ100H (manufactured by Nippon Polychem Co., Ltd.).
- the ethylene / cyclic aminovinyl compound copolymer used in the present invention is not necessarily contained in all layers of the multilayer film, and may be contained in at least one layer.
- at least the inner layer preferably contains an ethylene / cyclic aminovinyl compound copolymer.
- the adhesiveness of an anti-fogging coating film can be improved effectively.
- the ethylene / cyclic aminovinyl compound copolymer can be used in combination with one or two or more hindered amine weathering agents that are usually used.
- one or two or more hindered amine weathering agents which are usually used can be used for the layer not containing the ethylene / cyclic aminovinyl compound copolymer.
- the ethylene / cyclic aminovinyl compound copolymer may be contained in all layers, but it is contained in the inner layer and the outer layer (outer surface of the house), for example.
- An agent can also be contained.
- blended for agricultural use can also be contained in the same layer with an ethylene-cyclic amino vinyl compound copolymer. In this case, the cost becomes more advantageous than the case where an ethylene / cyclic aminovinyl compound copolymer is used for all layers.
- additives usually used for agricultural films can be used in combination in the agricultural polyolefin-based multilayer film of the present invention.
- additives include, for example, ultraviolet absorbers, weathering agents, hindered amine compounds, infrared absorbers, heat retention agents, fillers, metal organic acid salts, basic organic acid salts and overbased organic acid salts, hydrotalc.
- Site compounds epoxy compounds, ⁇ -diketone compounds, polyhydric alcohols, halogen oxyacid salts, sulfur-based, phenol-based and phosphite-based antioxidants, thermal stabilizers, lubricants, antistatic agents, colorants, antiblocking Agents, etc.
- hindered amine compounds examples include bis (1,2,2,6,6-pentamethyl-4-piperidyl) -2-butyl-2- (3,5-ditert-butyl-4-hydroxybenzyl).
- Malonate tetra (2,2,6,6-tetramethyl-4-piperidyl) butanetetracarboxylate, tetra (1,2,2,6,6-pentamethyl-4-piperidyl) butanetetracarboxylate, bis (2 , 2,6,6-tetramethyl-4-piperidyl) .di (tridecyl) butanetetracarboxylate, bis (1,2,2,6,6-pentamethyl-4-piperidyl) .di (tridecyl) butanetetracarboxylate 3,9-bis [1,1-dimethyl-2- ⁇ tris (2,2,6,6-tetramethyl-4-piperidyloxycarbonyl] Oxy) butylcarbonyloxy ⁇ e
- hindered amine compounds examples include TINUVIN 770, TINUVIN 780, TINUVIN 144, TINUVIN 622LD, TINUVIN NOR 371, CHIMASSORB 119FL, CHIMASSORB 944 (above, manufactured by Ciba Geigy), Sanol LS-765 (Sankyo LS-765) -63, MARK LA-68, MARK LA-62, MARK LA-67, MARK LA-57, LA-900, LA-81, NO-Alkyl-1 (above, manufactured by ADEKA), UV-3346, UV- 3529, UV-3581, UV-3853 (from Cytec), Hostabin N20, Hostabin N24, Hostabin N30, Hostabin 845, Hostabin NOW, Sande Bore PR-31, Nairosutabbu S-EED (or more, manufactured by Clariant Japan KK), UVINUL5050H (or more, BASF Japan Co., Ltd
- the content of the hindered amine compound is 0.001 to 5% by weight, preferably 0.01 to 1% by weight, based on 100% by weight of the polyolefin resin in all layers.
- the content is less than 0.001% by weight, a sufficient effect cannot be obtained, and when the content is more than 5% by weight, the effect is not improved, and the physical properties of the film are deteriorated.
- a hindered amine light stabilizer can be contained in any one or more layers of the base film.
- an additive such as a hindered amine compound
- a master batch of the additive is prepared and kneaded with a base resin, but when a fluorosurfactant is added, the master batch is added. There is a tendency to color.
- a hindered amine compound is added, there is also an advantage that coloring of the masterbatch by the fluorosurfactant is suppressed.
- ultraviolet absorber examples include 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-octoxybenzophenone, and 5,5′-methylenebis (2-hydroxy-4-methoxybenzophenone).
- the content of the ultraviolet absorber is preferably more than 0.001% by weight and less than 2% by weight, more preferably 0.01 to 1% by weight, based on 100% by weight of the polyolefin resin. If the content is less than the above range, the effect of improving weather resistance is low, and if it exceeds the above range, there are problems such as a decrease in transparency due to bleeding out.
- the agricultural film of the present invention can be provided with good heat retention by adding an infrared absorber.
- an infrared absorber an inorganic compound (inorganic oxide, inorganic hydroxide, hydrotalcite, etc.) containing at least one atom of Mg, Ca, Al, Si and Li that is effective as a heat retaining agent can be used.
- the method for obtaining the infrared absorber (heat retention agent) represented by the above formula (3) is not particularly limited, and commercially available products can be used, for example, DHT4A, SYHT-3 (manufactured by Kyowa Chemical Co., Ltd.) HT-P (manufactured by Sakai Chemical Co., Ltd.), Optima (manufactured by Toda Kogyo Co., Ltd.), Mizukarak (manufactured by Mizusawa Chemical Co., Ltd.), and the like.
- the infrared absorbent (heat retention agent) according to the present invention is inorganic fine particles having infrared absorbing ability, and these can be used alone or in combination of two or more.
- the inorganic fine particles that can be used are not particularly limited, but inorganic compounds containing at least one atom selected from the components: Si, Al, Mg, and Ca can be used.
- the inorganic fine particles may be natural products or synthetic products.
- the inorganic fine particles can be used without being limited by the crystal structure, crystal particle diameter, and the like.
- the content of the inorganic fine particles is preferably more than 0.1% by weight and less than 15% by weight, more preferably 1 to 12% by weight with respect to 100% by weight of the polyolefin-based resin in all layers. If the content is less than the above range, the effect of improving heat retention is low, and if it exceeds the above range, there are problems such as a decrease in transparency.
- Examples of the metal species constituting the organic acid salt, basic organic acid salt and overbased organic acid salt of the metal include Li, Na, K, Ca, Ba, Mg, Sr, Zn, Cd, Sn, Cs,
- Examples of the organic acid include carboxylic acid, organic phosphoric acid, and phenol.
- Examples of the filler include silica, talc, aluminum hydroxide, hydrotalcite, calcium sulfate, calcium silicate, calcium hydroxide, and hydroxide in order to suppress stickiness of the film or to further increase the heat retention.
- Magnesium, kaolin clay, mica, alumina, magnesium carbonate, sodium aluminate, conductive zinc oxide, lithium phosphate and the like are used.
- One type of these fillers may be used, or two or more types may be used in combination.
- phenolic antioxidant examples include 2,6-ditert-butyl-p-cresol, 2,6-diphenyl-4-octadecyloxyphenol, stearyl (3,5-ditert-butyl-4- Hydroxyphenyl) -propionate, distearyl (3,5-ditert-butyl-4-hydroxybenzyl) phosphonate, thiodiethylene glycol bis [(3,5-ditert-butyl-4-hydroxyphenyl) propionate], 1,6 -Hexamethylene bis [(3,5-ditert-butyl-4-hydroxyphenyl) propionate] and the like.
- sulfur-based antioxidant examples include dialkylthiodipropionates such as dilauryl thiodipropionate, dimyristyl, and distearyl, and ⁇ -alkyl mercapto of polyols such as pentaerythritol tetra ( ⁇ -dodecyl mercaptopropionate). And propionic acid esters.
- phosphite antioxidant examples include trisnonylphenyl phosphite, tris (2,4-ditert-butylphenyl) phosphite, tris [2-tert-butyl-4- (3-tert-butyl- 4-hydroxy-5-methylphenylthio) -5-methylphenyl] phosphite.
- colorant examples include phthalocyanine blue, phthalocyanine green, hansa yellow, alizarin lake, titanium oxide, zinc white, ultramarine blue, permanent red, quinacridone, and carbon black.
- the base film of the present invention contains the above-described components in combination, and can further contain the following optional components that can be contained in the base film of the present invention as required.
- Optional components include other stabilizers, impact resistance improvers, cross-linking agents, fillers, foaming agents, antistatic agents, nucleating agents, plate-out preventing agents, surface treatment agents, flame retardants, fluorescent agents, anti-glare agents Agents, bactericides, metal deactivators, mold release agents, pigments, processing aids and the like.
- the base film of the present invention is weighed in a necessary amount for blending various additives, and blender such as a ribbon blender, a Banbury mixer, a Henschel mixer, a super mixer, a single or twin screw extruder, a roll, or a kneading machine. Any other known blending machine or mixing machine may be used.
- a method known per se for example, a melt extrusion molding method (including a T-die method and an inflation method), calendar processing, roll processing, extrusion molding processing, Blow molding, inflation molding, melt casting, pressure molding, paste processing, powder molding, and the like can be suitably used.
- the thickness of the base film of the present invention is preferably in the range of 0.01 to 1 mm in terms of strength and cost, more preferably 0.05 to 0.5 mm, and still more preferably 0.05 to 0.00 mm. 2 mm. If it is less than this range, there is a problem in strength, and if it exceeds this range, molding is difficult and there is a problem in stretch workability.
- the layer ratio constituting the three-layer film is preferably in the range of 1 / 0.5 / 1 to 1/5/1 from the viewpoint of moldability, transparency and strength, and 1/2/1 to 1/4/1. The range of is more preferable. Further, the ratio between the outer layer and the inner layer is not particularly specified, but it is preferable that the ratio is approximately the same because of the curl property of the obtained film.
- the side provided with the anti-fogging coating film is spread inside the house or tunnel.
- the agricultural polyolefin-based multilayer film of the present invention is an agricultural film in which a decrease in translucency due to condensation immediately after spreading is suppressed, and can be suitably used even in an area where condensation is likely to occur. Furthermore, it is very easy to handle because it does not cause a decrease in openability that normally occurs when a surfactant component is added to the layer facing the outside of the house, and it is very easy to handle, and is provided as an agricultural film. It has a good balance of performance.
- the agricultural film of the present invention may be transparent, pear or semi-pear, and is suitable for use in agricultural films (so-called agricultural poly, agricultural sacbi, agricultural PO, etc.) for house, tunnel, mulching, bag hanging, etc. Can be used for
- Adjustment of laminated film 100 mm ⁇ (made by Pla Koken Co., Ltd.) is used for a three-layer die as a three-layer inflation molding device, and the extruder has an outer tube inner layer of 30 mm ⁇ (made by Pla Giken Co., Ltd.), two intermediate layers Is 40 mm ⁇ (manufactured by Pla Giken Co., Ltd.), the outer layer extruder temperature is 180 ° C., the intermediate layer extruder temperature is 170 ° C., the die temperature is 180 to 190 ° C., the blow ratio is 2.0 to 3.0, the take-off speed is 3 to A three-layer laminated film comprising the components shown in Tables 1 to 3 was obtained at 7 m / min and a thickness of 0.15 mm. Since these films are used with the end of the tube cut open when the house is stretched, the tube outer layer during film formation becomes the inner layer (inner surface) of the house when stretched when unfolded.
- HP-LDPE Branched polyethylene produced with a high-pressure radical catalyst (MFR: 1.1 g / 10 min, density 0.920) Novatec LD “YF30” manufactured by Nippon Polychem Metallocene PE: An ethylene / ⁇ -olefin copolymer produced with a metallocene catalyst (MFR: 2 g / 10 min, density 0.907) Kernel “KF270” manufactured by Nippon Polychem
- EVA1 Ethylene / vinyl acetate copolymer (vinyl acetate content 5% by weight, MFR 2 g / 10 min)
- EVA2 Ethylene / vinyl acetate copolymer (vinyl acetate content 15% by weight, MFR 2 g / 10 min)
- Fluorosurfactant A Perfluoroalkylethylene oxide adduct DS-405 (perfluoroalkyl group having 8 carbon atoms) (Daikin Chemicals Sales Co., Ltd.)
- Fluorosurfactant B Perfluoroalkylethylene oxide adduct DSN-403N (carbon number of perfluoroalkyl group is 6) (Daikin Chemicals Sales Co., Ltd.)
- Surfactant B Polyoxyethylene sorbitan monooleate
- Surfactant C Sorbitan palmitate 0.5 mol propylene oxide adduct
- UV absorber A Cyaryl triaryl triazine UV absorber “UV1164” Synthetic hydrotalcite A: “DHT4A” manufactured by Kyowa Chemical Co., Ltd.
- Inorganic fine particle A added as a master batch “MF20KG” made by Nippon Polyethylene Co., Ltd. containing natural silica.
- Inorganic fine particle B “F-30” manufactured by Fuji Chemical Industry Co., Ltd.
- the average particle size of the above-mentioned fine particle component is the value of D50 by a laser diffraction method using a “Microtrack particle size distribution measuring device” manufactured by Nikkiso Co., Ltd. (particle size ( ⁇ m )) Was used.
- the antifogging agent composition was blended as follows.
- Inorganic colloidal sol (colloidal silica) 4.0
- Thermoplastic resin (Sanmor SW-131: hydrophobic binder resin) 3.0
- the amount of inorganic colloidal sol is indicated by the amount of inorganic particles, and the amount of thermoplastic resin is indicated by the solid content of the polymer.
- Colloidal silica Snowtex 30 manufactured by Nissan Chemical Industries, average particle size of 15 nm Sunmole SW-131: acrylic emulsion T.M. manufactured by Sanyo Kasei Co., Ltd.
- A. Z. M Aziridine compound manufactured by Mutual Yakugyo Co., Ltd.
- the above antifogging agent composition was applied to the surface of the base film surface-treated in (2) using a # 5 bar coater.
- the applied film was kept in an oven at 80 ° C. for 1 minute to volatilize the liquid dispersion medium to form an antifogging coating film.
- the thickness of the coating film of each obtained film was about 1 ⁇ m.
- Example 1 Comparative Examples 1 to 3
- a three-layer film anti-fogging coating application type
- a film thickness of 150 ⁇ m and a layer ratio of 1/3/1 is prepared, and the water droplet contact angle measurement, water droplet adhesion evaluation immediately after stretching, and charged voltage measurement by the above methods.
- the mouth openability was evaluated. The results are shown in Table 1.
- Examples 1 and 2 Comparative Example 4
- a three-layer film anti-fogging coating application type
- a film thickness of 150 ⁇ m and a layer ratio of 1/3/1 is prepared, and the water droplet contact angle measurement, water droplet adhesion evaluation immediately after stretching, and charged voltage measurement by the above methods.
- the mouth opening property was evaluated. The results are shown in Table 2.
- Examples 1, 3 and 4, Comparative Examples 5 to 6 By the above formulation, a three-layer film (anti-fogging coating application type) with a film thickness of 150 ⁇ m and a layer ratio of 1/3/1 is prepared, and the water droplet contact angle measurement, water droplet adhesion evaluation immediately after stretching, and charged voltage measurement by the above methods. The mouth opening property was evaluated. The results are shown in Table 3.
- Examples 1 and 5 By the above formulation, a three-layer film (anti-fogging coating application type) with a film thickness of 150 ⁇ m and a layer ratio of 1/3/1 is prepared, and the water droplet contact angle measurement, water droplet adhesion evaluation immediately after stretching, and charged voltage measurement by the above methods. Table 4 shows the results of mouth opening evaluation and the presence or absence of PFOA.
- the fluorosurfactant component according to the present invention and the fine particle component having an average particle size of 1.0 ⁇ m or more are contained in at least the outer layer of the base film, and synthesized on the inner layer side surface of the base film.
- Polyolefin agricultural multilayer film characterized by providing a resin binder and / or an anti-fogging coating film layer mainly composed of an inorganic colloidal sol is a reduction in translucency due to dew condensation immediately after stretching, The mouth opening is remarkably excellent (Examples 1 to 4).
- the openability is inferior as in the case where the fine particle component is absent (Comparative Example 6). That is, when the constituent elements according to the present invention are lacking, it cannot be said that the performance to be provided as an agricultural film is provided in a balanced manner.
Abstract
Description
また、更に、フッ素系界面活性剤成分として特定の種類のものを用いることにより、環境への影響のない農業用ポリオレフィン系多層フィルムを提供できることを知見した。 As a result of intensive studies, the inventor has found that at least the outer layer of the base film contains a fluorosurfactant component and a fine particle component having an average particle size of 1.0 μm or more, and the inner surface of the base film has a synthetic resin. The present invention has been completed by finding that the above-mentioned problems can be solved in an agricultural polyolefin-based multilayer film characterized by providing an anti-fogging coating film layer mainly composed of a binder and / or an inorganic colloid sol.
Furthermore, it has been found that by using a specific type of fluorine-based surfactant component, an agricultural polyolefin-based multilayer film having no environmental impact can be provided.
(1)少なくとも外層、中間層及び内層を有し、ポリオレフィン系樹脂を含有してなる基材フィルムの少なくとも外層にフッ素系界面活性剤成分及び平均粒子径1.0μm以上の微粒子成分を含み、基材フィルムの内層側表面に、合成樹脂バインダー及び無機質コロイドゾル、又は無機質コロイドゾルを主成分とする防曇性塗膜層を設けたことを特徴とする農業用ポリオレフィン系多層フィルム、
(2)フッ素系界面活性剤成分が、パーフルオロアルキルエチレンオキシド付加物又はパーフルオロアルキルプロピレンオキシド付加物を含む、(1)に記載の農業用ポリオレフィン系多層フィルム、
(3)前記パーフルオロアルキルエチレンオキシド付加物又はパーフルオロアルキルプロピレンオキシド付加物が、炭素数5~10のパーフルオロアルキル基を有する、(2)に記載の農業用ポリオレフィン系多層フィルム、
(4)前記パーフルオロアルキルエチレンオキシド付加物又はパーフルオロアルキルプロピレンオキシド付加物が、炭素数5~6のパーフルオロアルキル基を有する、(3)に記載の農業用ポリオレフィン系多層フィルム、
(5)前記微粒子成分が構成元素成分としてSi,Mg,Al,Li,Caの内から選ばれる少なくとも一つを含有することを特徴とする(1)~(4)のいずれか1に記載の農業用ポリオレフィン系多層フィルム、
(6)前記微粒子成分の平均粒子径が5.0μm~20μmである、(1)~(5)のいずれか1に記載の農業用ポリオレフィン系多層フィルム、
(7)合成樹脂バインダーが、アクリル系樹脂及び/又はウレタン系樹脂であることを特徴とする(1)~(6)のいずれか1に記載の農業用ポリオレフィン系多層フィルム、
(8)無機質コロイドゾルがコロイダルシリカ及び/又はコロイダルアルミナであることを特徴とする(1)~(7)のいずれか1に記載の農業用ポリオレフィン系多層フィルム、
(9)基材フィルムの外層及び内層に前記微粒子成分を含む、(1)~(8)のいずれか1に記載の農業用ポリオレフィン系多層フィルム、及び
(10)エチレン(A)と下記式(1)で表される環状アミノビニル化合物(B)との共重合体を基材フィルムの1以上のいずれかの層に含有することを特徴とする、(1)~(9)のいずれか1に記載の農業用ポリオレフィン系多層フィルム
を、提供するものである。 That is, the present invention
(1) At least an outer layer of a substrate film having at least an outer layer, an intermediate layer, and an inner layer and containing a polyolefin-based resin contains a fluorosurfactant component and a fine particle component having an average particle diameter of 1.0 μm or more, A polyolefin multilayer multilayer film for agricultural use, characterized in that a synthetic resin binder and an inorganic colloid sol, or an antifogging coating layer mainly composed of an inorganic colloid sol is provided on the inner layer side surface of the material film,
(2) The polyolefin-based multilayer film for agriculture according to (1), wherein the fluorosurfactant component comprises a perfluoroalkylethylene oxide adduct or a perfluoroalkylpropylene oxide adduct,
(3) The polyolefin-based multilayer film for agricultural use according to (2), wherein the perfluoroalkylethylene oxide adduct or perfluoroalkylpropylene oxide adduct has a perfluoroalkyl group having 5 to 10 carbon atoms,
(4) The polyolefin multi-layer film for agriculture according to (3), wherein the perfluoroalkylethylene oxide adduct or perfluoroalkylpropylene oxide adduct has a perfluoroalkyl group having 5 to 6 carbon atoms,
(5) The fine particle component contains at least one selected from Si, Mg, Al, Li, and Ca as a constituent element component, according to any one of (1) to (4) Polyolefin multilayer film for agriculture,
(6) The agricultural polyolefin-based multilayer film according to any one of (1) to (5), wherein the fine particle component has an average particle size of 5.0 μm to 20 μm,
(7) The polyolefin multi-layer film for agriculture according to any one of (1) to (6), wherein the synthetic resin binder is an acrylic resin and / or a urethane resin;
(8) The polyolefin multi-layer film for agriculture according to any one of (1) to (7), wherein the inorganic colloidal sol is colloidal silica and / or colloidal alumina,
(9) The polyolefin multi-layer film for agriculture according to any one of (1) to (8), and (10) ethylene (A) and the following formula: Any one of (1) to (9), wherein the copolymer with the cyclic aminovinyl compound (B) represented by 1) is contained in one or more layers of the base film. Agricultural polyolefin multilayer film as described in
Is provided.
また、フッ素系界面活性剤成分として特定の種類のものを用いることにより、環境への影響のない農業用ポリオレフィン系多層フィルムを提供することができる。
また、本発明の農業用フィルムは、透明でも、梨地でも、半梨地でもよく、ハウス、トンネル、マルチング用、袋掛用等の農業用フィルム(いわゆる農PO)の用途に好適に使用することができる。 The present invention suppresses a decrease in translucency due to condensation that occurs on the outer surface of the house immediately after spreading, can be used without causing a decrease in cultivatability due to insufficient light quantity in the house, and is excellent in antistatic performance at a processing place A polyolefin-based multilayer film can be provided.
Moreover, by using a specific type of fluorine-based surfactant component, it is possible to provide an agricultural polyolefin-based multilayer film that does not affect the environment.
The agricultural film of the present invention may be transparent, satin or semi-satin, and can be suitably used for agricultural film (so-called agricultural PO) for house, tunnel, mulching, bag hanging, etc. it can.
以下、本発明を詳細に説明する。
本発明における農業用ポリオレフィン系多層フィルム(以下「本発明の農業用フィルム」ともいう。)は、界面活性剤が基材フィルムの外層に含まれることを特徴とする。ここで、基材フィルムとは、防曇性塗膜等が形成される前のポリオレフィン系多層フィルムをいい、少なくとも2層で構成されている。本発明において基材フィルムは、好ましくは、外層、中間層、内層の三層で構成されるが、それ以上の層を含んでもよい。本発明においては、農業用多層フィルムをハウスに展張した際に、ハウス外側に面している層を外層といい、ハウス内側に面している層を内層という。 [Embodiment of the Invention]
Hereinafter, the present invention will be described in detail.
The agricultural polyolefin-based multilayer film (hereinafter also referred to as “the agricultural film of the present invention”) in the present invention is characterized in that a surfactant is contained in the outer layer of the base film. Here, the base film refers to a polyolefin-based multilayer film before an antifogging coating film or the like is formed, and is composed of at least two layers. In the present invention, the base film is preferably composed of three layers of an outer layer, an intermediate layer, and an inner layer, but may include more layers. In the present invention, when the agricultural multilayer film is spread on the house, the layer facing the outside of the house is called an outer layer, and the layer facing the inside of the house is called an inner layer.
フッ素系界面活性剤成分と併用することができる他の界面活性剤としては、公知の種々の非イオン系界面活性剤、アニオン系界面活性剤、カチオン系界面活性剤等を始めとする、多価アルコールと高級脂肪酸類とから成る多価アルコール部分エステル系のもの、シリコーン系界面活性剤が好適である。このような界面活性剤の具体例としては、例えば非イオン系界面活性剤、例えば、ソルビタンパルミチン酸エステル、ソルビタンパルミチン酸エステルのアルキレンオキシド付加物、ソルビタンステアリン酸エステル、ソルビタンステアリン酸エステルのアルキレンオキシド付加物、ポリオキシアルキレンソルビタン脂肪酸エステル、ソルビタンアルキレンオキシド付加物及びソルビタンモノパルミチン酸エステル(ここで、ソルビタンステアリン酸エステル、ソルビタンパルミチン酸エステルには、モノエステル、ジエステル、トリエステル、及びそれらの混合物が含まれる。)などのソルビタン系界面活性剤やグリセリンモノパルミテート、グリセリンモノステアレート、グリセリンモノラウレート、ジグリセリンモノパルミテート、グリセリンジパルミテート、グリセリンジステアレート、ジグリセリンモノパルミテート・モノステアレート、トリグリセリンモノステアレート、トリグリセリンジステアレートあるいはこれらのアルキレンオキシド付加物等などのグリセリン系界面活性剤やポリエチレングリコールモノステアレート、ポリエチレングリコールモノパルミテート、ポリエチレングリコールアルキルフェニルエーテルなどのポリエチレングリコール系界面活性剤やその他トリメチロールプロパンモノステアレートなどのトリメチロールプロパン系界面活性剤やペンタエリスリトールモノパルミテート、ペンタエリスリトールモノステアレートなどのペンタエリスリトール系界面活性剤、アルキルフェノールのアルキレンオキシド付加物;ソルビタン/グリセリンの縮合物と脂肪酸とのエステル、ソルビタン/アルキレングリコールの縮合物と脂肪酸とのエステル;ジグリセリンジオレートナトリウムラウリルサルフェート、ドデシルベンゼンスルホン酸ナトリウム、セチルトリメチルアンモニウムクロライド、ドデシルアミン塩酸塩、ラウリン酸ラウリルアミドエチルリン酸塩、トリエチルセチルアンモニウムイオダイド、オレイルアミノジエチルアミン塩酸塩、ドデシルピリジニウム塩などやそれらの異性体を含むものなどを挙げることができる。
上記の中でも、ソルビタンパルミチン酸エステル、ソルビタンパルミチン酸エステルのアルキレンオキシド付加物、ソルビタンステアリン酸エステル、ソルビタンステアリン酸エステルのアルキレンオキシド付加物、ポリオキシアルキレンソルビタン脂肪酸エステル、ソルビタンアルキレンオキシド付加物及びソルビタンモノパルミチン酸エステルなどのソルビタン系界面活性剤が好ましい。付加するアルキレンオキシドとしては、エチレンオキシド、プロピレンオキシドが好ましい。
本発明においては、ソルビタン系防曇剤の中でも、ソルビタンパルミチン酸エステル0.5モルプロピレンオキシド付加物、ポリオキシプロピレンソルビタン脂肪酸エステル、ソルビタン・モノステアリン酸エステル0.5モルプロピレンオキシド付加物、ソルビタンモノパルミチン酸エステルが特に好ましい。 Moreover, in this invention, a fluorine-type surfactant component can also be used in combination with another surfactant.
Other surfactants that can be used in combination with the fluorosurfactant component include various known nonionic surfactants, anionic surfactants, cationic surfactants, and other polyvalent surfactants. A polyhydric alcohol partial ester-based compound composed of alcohol and higher fatty acids and a silicone-based surfactant are preferred. Specific examples of such surfactants include, for example, nonionic surfactants such as sorbitan palmitate, alkylene oxide adducts of sorbitan palmitate, sorbitan stearate, alkylene oxide addition of sorbitan stearate. , Polyoxyalkylene sorbitan fatty acid ester, sorbitan alkylene oxide adduct and sorbitan monopalmitate (wherein sorbitan stearate and sorbitan palmitate include monoesters, diesters, triesters, and mixtures thereof) ) Sorbitan surfactants, glycerin monopalmitate, glycerin monostearate, glycerin monolaurate, diglycerin monopalmitate, Glycerin surfactants such as serine dipalmitate, glycerin distearate, diglycerin monopalmitate monostearate, triglycerin monostearate, triglycerin distearate or their alkylene oxide adducts and polyethylene glycol mono Polyethylene glycol surfactants such as stearate, polyethylene glycol monopalmitate, polyethylene glycol alkylphenyl ether, and other trimethylolpropane surfactants such as trimethylolpropane monostearate, pentaerythritol monopalmitate, pentaerythritol monostearate Pentaerythritol surfactants such as acrylate, alkylene oxide adducts of alkylphenols; sorbitan / glycerin Esters of condensate and fatty acid, sorbitan / alkylene glycol condensate and fatty acid; diglycerindiolate sodium lauryl sulfate, sodium dodecylbenzenesulfonate, cetyltrimethylammonium chloride, dodecylamine hydrochloride, lauramidoethyl laurate Examples thereof include phosphates, triethylcetylammonium iodide, oleylaminodiethylamine hydrochloride, dodecylpyridinium salts and the like and isomers thereof.
Among the above, sorbitan palmitate, alkylene oxide adduct of sorbitan palmitate, sorbitan stearate, alkylene oxide adduct of sorbitan stearate, polyoxyalkylene sorbitan fatty acid ester, sorbitan alkylene oxide adduct and sorbitan monopalmitin Sorbitan surfactants such as acid esters are preferred. The alkylene oxide to be added is preferably ethylene oxide or propylene oxide.
In the present invention, among sorbitan antifogging agents, sorbitan palmitate 0.5 mol propylene oxide adduct, polyoxypropylene sorbitan fatty acid ester, sorbitan monostearate 0.5 mol propylene oxide adduct, sorbitan mono Palmitic acid esters are particularly preferred.
また、無機微粒子の基材フィルムの内層中における含有量は、当該層中のポリオレフィン系樹脂100重量%に対して、0.001~4.0重量%、好ましくは0.01~2.0重量%、更に好ましくは0.1~1.0重量%である。 The content of the inorganic fine particles is 0.001 to 2.0% by weight, preferably 0.01 to 1.0% by weight, more preferably 0.1% to 100% by weight of the polyolefin resin in the outer layer of the base film. 0.5% by weight. When the amount of the inorganic filler used is less than 0.001% by weight, the films become sticky and practical problems arise. If it exceeds 2% by weight, it is not preferable in terms of decrease in transparency.
The content of the inorganic fine particles in the inner layer of the base film is 0.001 to 4.0% by weight, preferably 0.01 to 2.0% by weight with respect to 100% by weight of the polyolefin resin in the layer. %, More preferably 0.1 to 1.0% by weight.
更に、基材フィルムの1以上のいずれかの層にエチレン・環状アミノビニル化合物共重合体含有させると、基材フィルムに防曇性塗膜などを形成した場合に塗膜密着性を向上することができることから、好ましい。 The copolymer of ethylene (A) and cyclic aminovinyl compound (B) of the present invention (hereinafter referred to as “ethylene / cyclic aminovinyl compound copolymer”) is composed of ethylene (A) and the compound of formula (1). Copolymers can be used. When the ethylene / cyclic aminovinyl compound copolymer is added in a large amount, the surface properties (water droplet contact angle, etc.) of the polyolefin film of the film can be changed, and can be suitably used for the purpose of the present invention.
Furthermore, when one or more layers of the base film contain an ethylene / cyclic aminovinyl compound copolymer, the coating film adhesion is improved when an antifogging coating film is formed on the base film. Is preferable.
また、このエチレン・環状アミノビニル化合物共重合体は、通常用いられる一種又は二種以上のヒンダードアミン系耐候剤と組み合わせて用いることができる。更に、エチレン・環状アミノビニル化合物共重合体を含有しない層に対して、通常用いられる一種又は二種以上のヒンダードアミン系耐候剤を用いることもできる。エチレン・環状アミノビニル化合物共重合体は、もちろん全層に含有させてもよいが、例えば内層と外層(ハウス外面)に含有させ、その他の層には農業用として通常配合されるヒンダードアミン系光安定剤を含有させることもできる。また、同一の層にエチレン・環状アミノビニル化合物共重合体と農業用として通常配合されるヒンダードアミン系光安定剤を含有させることもできる。その場合は全層にエチレン・環状アミノビニル化合物共重合体を用いる場合よりコスト的に有利になる。 From the viewpoint of cost, the ethylene / cyclic aminovinyl compound copolymer used in the present invention is not necessarily contained in all layers of the multilayer film, and may be contained in at least one layer. In the present invention, at least the inner layer preferably contains an ethylene / cyclic aminovinyl compound copolymer. Thereby, the adhesiveness of an anti-fogging coating film can be improved effectively.
Further, the ethylene / cyclic aminovinyl compound copolymer can be used in combination with one or two or more hindered amine weathering agents that are usually used. Further, one or two or more hindered amine weathering agents which are usually used can be used for the layer not containing the ethylene / cyclic aminovinyl compound copolymer. Of course, the ethylene / cyclic aminovinyl compound copolymer may be contained in all layers, but it is contained in the inner layer and the outer layer (outer surface of the house), for example. An agent can also be contained. Moreover, the hindered amine light stabilizer normally mix | blended for agricultural use can also be contained in the same layer with an ethylene-cyclic amino vinyl compound copolymer. In this case, the cost becomes more advantageous than the case where an ethylene / cyclic aminovinyl compound copolymer is used for all layers.
Mg4.5Al2(OH)13CO3・3.5H2O(2) Especially, when the hydrotalcite infrared absorber represented by the following formula (2) is used, a film that is inexpensive and has good moldability can be obtained.
Mg 4.5 Al 2 (OH) 13 CO 3 · 3.5H 2 O (2)
[Al2(Li(1-x)・M(x+y))(OH)6+y]2(An-)2(1+x)/n・mH2O(3)(式中、MはMg及び/又はZnで、Aはn価のアニオン、mは0又は正の数、x及びyは0≦x<1、0≦y≦0.5の範囲である。) In particular, when an infrared absorber represented by the following formula (3) is used, a film that is inexpensive and has good moldability can be obtained.
[Al 2 (Li (1-x) · M (x + y) ) (OH) 6 + y ] 2 (An − ) 2 (1 + x) / n · mH 2 O (3) (wherein M is Mg and / or Zn A is an n-valent anion, m is 0 or a positive number, and x and y are in the range of 0 ≦ x <1, 0 ≦ y ≦ 0.5.)
更に、通常、ハウス外側に面した層に界面活性剤成分を添加した場合に生じる口開き性の低下を起こすことなく、加工所での帯電も少ないことから非常に扱いやすく、農業用フィルムとして具備すべき性能をバランス良く有している。本発明の農業用フィルムは、透明でも、梨地でも、半梨地でもよく、ハウス、トンネル、マルチング用、袋掛用等の農業用フィルム(いわゆる農ポリ、農サクビ、農PO等)の用途に好適に使用することができる。 The agricultural polyolefin-based multilayer film of the present invention is an agricultural film in which a decrease in translucency due to condensation immediately after spreading is suppressed, and can be suitably used even in an area where condensation is likely to occur.
Furthermore, it is very easy to handle because it does not cause a decrease in openability that normally occurs when a surfactant component is added to the layer facing the outside of the house, and it is very easy to handle, and is provided as an agricultural film. It has a good balance of performance. The agricultural film of the present invention may be transparent, pear or semi-pear, and is suitable for use in agricultural films (so-called agricultural poly, agricultural sacbi, agricultural PO, etc.) for house, tunnel, mulching, bag hanging, etc. Can be used for
3層インフレーション成形装置として3層ダイに100mmφ((株)プラ工研製)を用い、押出機はチューブ外内層を30mmφ((株)プラ技研製)2台、中間層を40mmφ((株)プラ技研製)として、外内層押出し機温度180℃、中間層押し出し機温度170℃、ダイス温度180~190℃、ブロー比2.0~3.0、引取り速度3~7m/分、厚さ0.15mmにて表1~表3に示した成分からなる3層の積層フィルムを得た。なお、これらのフィルムは、ハウス展張時にチューブの端部を切り開いて使用するため、展開した際に製膜時のチューブ外層が展張時にはハウスの内層(内面)となる。 (1) Adjustment of laminated film 100 mmφ (made by Pla Koken Co., Ltd.) is used for a three-layer die as a three-layer inflation molding device, and the extruder has an outer tube inner layer of 30 mmφ (made by Pla Giken Co., Ltd.), two intermediate layers Is 40 mmφ (manufactured by Pla Giken Co., Ltd.), the outer layer extruder temperature is 180 ° C., the intermediate layer extruder temperature is 170 ° C., the die temperature is 180 to 190 ° C., the blow ratio is 2.0 to 3.0, the take-off speed is 3 to A three-layer laminated film comprising the components shown in Tables 1 to 3 was obtained at 7 m / min and a thickness of 0.15 mm. Since these films are used with the end of the tube cut open when the house is stretched, the tube outer layer during film formation becomes the inner layer (inner surface) of the house when stretched when unfolded.
HP-LDPE:高圧ラジカル法触媒で製造した分岐状ポリエチレン(MFR:1.1g/10分、密度0.920)日本ポリケム製ノバテックLD「YF30」
メタロセンPE:メタロセン触媒で製造したエチレン・αオレフィン共重合体(MFR:2g/10分、密度0.907)日本ポリケム製カーネル「KF270」
EVA1 :エチレン・酢酸ビニル共重合体(酢酸ビニル含有量5重量%、MFR2g/10分)
EVA2 :エチレン・酢酸ビニル共重合体(酢酸ビニル含有量15重量%、MFR2g/10分) [Composition] Addition amounts are as described in each table.
HP-LDPE: Branched polyethylene produced with a high-pressure radical catalyst (MFR: 1.1 g / 10 min, density 0.920) Novatec LD “YF30” manufactured by Nippon Polychem
Metallocene PE: An ethylene / α-olefin copolymer produced with a metallocene catalyst (MFR: 2 g / 10 min, density 0.907) Kernel “KF270” manufactured by Nippon Polychem
EVA1: Ethylene / vinyl acetate copolymer (vinyl acetate content 5% by weight, MFR 2 g / 10 min)
EVA2: Ethylene / vinyl acetate copolymer (vinyl acetate content 15% by weight, MFR 2 g / 10 min)
フッ素系界面活性剤B:パーフルオロアルキルエチレンオキシド付加物DSN-403N(パーフルオロアルキル基の炭素数が6)(ダイキン化成品販売(株)製)
界面活性剤A:非イオン系界面活性剤 花王(株)製「エレクトロストリッパーTS-EA」
界面活性剤B:ポリオキシエチレンソルビタンモノオレエート
界面活性剤C:ソルビタンパルミチン酸エステル0.5モルプロピレンオキシド付加物
紫外線吸収剤A:サイテック製トリアリールトリアジン系紫外線吸収剤「UV1164」
合成ハイドロタルサイトA:協和化学(株)製「DHT4A」 Fluorosurfactant A: Perfluoroalkylethylene oxide adduct DS-405 (perfluoroalkyl group having 8 carbon atoms) (Daikin Chemicals Sales Co., Ltd.)
Fluorosurfactant B: Perfluoroalkylethylene oxide adduct DSN-403N (carbon number of perfluoroalkyl group is 6) (Daikin Chemicals Sales Co., Ltd.)
Surfactant A: Nonionic surfactant “Electro Stripper TS-EA” manufactured by Kao Corporation
Surfactant B: Polyoxyethylene sorbitan monooleate Surfactant C: Sorbitan palmitate 0.5 mol propylene oxide adduct UV absorber A: Cyaryl triaryl triazine UV absorber “UV1164”
Synthetic hydrotalcite A: “DHT4A” manufactured by Kyowa Chemical Co., Ltd.
エチレン・環状アミノビニル共重合体:日本ポリエチレン(株)製「ノバテックLD・XJ100H」MFR=3g/10分(190℃、JIS-K6760) 密度=0.931g/cm3(JIS-K6760)環状アミノビニル化合物含量=5.1重量%(0.7モル%)孤立して存在する環状アミノビニル化合物の割合=90モル% 融点=111℃ Light Stabilizer A: Light Stabilizer “Tinuvin NOR 371 FF” manufactured by Ciba Specialty Chemicals
Ethylene / Cyclic aminovinyl copolymer: “Novatech LD / XJ100H” manufactured by Nippon Polyethylene Co., Ltd. MFR = 3 g / 10 min (190 ° C., JIS-K6760) Density = 0.931 g / cm 3 (JIS-K6760) Cyclic amino Vinyl compound content = 5.1% by weight (0.7 mol%) Percentage of cyclic aminovinyl compound present in isolation = 90 mol% Melting point = 111 ° C.
無機微粒子B:富士化学工業(株)製「F-30」
上記微粒子成分の平均粒子径は、日機装(株)製「マイクロトラック粒度分布測定装置」を使用してレーザー回折法によるD50の値(粒度加積曲線で重量比50%の粒子の粒径(μm))を用いた。 Inorganic fine particle A: added as a master batch “MF20KG” made by Nippon Polyethylene Co., Ltd. containing natural silica.
Inorganic fine particle B: “F-30” manufactured by Fuji Chemical Industry Co., Ltd.
The average particle size of the above-mentioned fine particle component is the value of D50 by a laser diffraction method using a “Microtrack particle size distribution measuring device” manufactured by Nikkiso Co., Ltd. (particle size (μm )) Was used.
得られたチューブ状フィルムの外層表面を、放電電圧120V、放電電流4.7A、ラインスピード10m/minでコロナ放電処理を行い、JIS-K6768による「濡れ指数」を測定、確認した。 (2) Surface treatment of the film The outer layer surface of the obtained tubular film was subjected to corona discharge treatment at a discharge voltage of 120 V, a discharge current of 4.7 A and a line speed of 10 m / min, and the “wetting index” according to JIS-K6768 was measured. ,confirmed.
下記に示した主成分(シリカゾル及び/又はアルミナゾル)と熱可塑性樹脂と架橋剤及び液状分散媒とを配合して防曇剤組成物を得た。 (3) Formation of antifogging coating film The main component (silica sol and / or alumina sol) shown below, a thermoplastic resin, a crosslinking agent and a liquid dispersion medium were blended to obtain an antifogging agent composition.
無機質コロイドゾル(コロイダルシリカ) 4.0
熱可塑性樹脂(サンモールSW-131:疎水性バインダー樹脂) 3.0
架橋剤(T.A.Z.M) 0.1
分散媒(水/エタノール=3/1) 93
(注)無機質コロイドゾルの配合量は、無機質粒子量で示し熱可塑性樹脂の配合
量は重合体固形分量で示す。 The antifogging agent composition was blended as follows.
Inorganic colloidal sol (colloidal silica) 4.0
Thermoplastic resin (Sanmor SW-131: hydrophobic binder resin) 3.0
Cross-linking agent (TAZM) 0.1
Dispersion medium (water / ethanol = 3/1) 93
(Note) The amount of inorganic colloidal sol is indicated by the amount of inorganic particles, and the amount of thermoplastic resin is indicated by the solid content of the polymer.
サンモールSW-131:三洋化成社製アクリルエマルジョン
T.A.Z.M:相互薬工社製アジリジン系化合物 Colloidal silica: Snowtex 30 manufactured by Nissan Chemical Industries, average particle size of 15 nm
Sunmole SW-131: acrylic emulsion T.M. manufactured by Sanyo Kasei Co., Ltd. A. Z. M: Aziridine compound manufactured by Mutual Yakugyo Co., Ltd.
各サンプルの水滴接触角を水滴接触角測定器(エルマ製)により測定し、その値を以下の基準で評価した結果を表に示した。
○:水滴接触角が60°より小さい。
△:水滴接触角が60°以上90より小さい。
×:水滴接触角が90°より大きい。 (1) Water drop contact angle measurement The water drop contact angle of each sample was measured with a water drop contact angle measuring device (manufactured by Elma), and the results were evaluated according to the following criteria.
○: Water droplet contact angle is smaller than 60 °.
Δ: Water droplet contact angle is 60 ° or more and less than 90.
X: Water droplet contact angle is larger than 90 °.
三重県松阪市の圃場に構築したパイプハウスにフィルムを2011年10月28日に展張した。当該ハウスに展張されてから5日後の11月2日朝、上記パイプハウス中からハウス外側面に付着した結露水の水滴付着状況を目視で観察した。
ハウス外側に付着した結露による水滴(滴状になっている部分)付着面積の割合
○:70%以下
△:70~90%
×:90~100% (2) Water drop adhesion test at the initial stage of expansion A film was spread on October 28, 2011 in a pipe house constructed in a field in Matsusaka City, Mie Prefecture. On the morning of November 2, five days after being deployed in the house, the state of water droplets adhering to the outside surface of the house was visually observed from inside the pipe house.
Percentage of water droplet (drop-shaped portion) adhesion area due to condensation on the outside of the house ○: 70% or less Δ: 70-90%
×: 90 to 100%
各サンプルの帯電圧をスタティックオネストネーター(SHISHIDO.Co製)により測定し、初期帯電圧に対する5分後の帯電圧の割合(%)について以下の基準で評価した結果を表に示した。
○:初期帯電圧に対する5分後の帯電圧の割合(%)が20%より低い。
△:初期帯電圧に対する5分後の帯電圧の割合(%)が20~80%の範囲。
×:初期帯電圧に対する5分後の帯電圧の割合(%)が80%より高い。 (3) Charge voltage measurement The charge voltage of each sample was measured with a static Honestator (manufactured by SHISHIDO.Co), and the ratio of the charge voltage after 5 minutes to the initial charge voltage (%) was evaluated according to the following criteria. It was shown to.
○: The ratio (%) of the charged voltage after 5 minutes to the initial charged voltage is lower than 20%.
Δ: The ratio (%) of the charged voltage after 5 minutes to the initial charged voltage is in the range of 20 to 80%.
X: The ratio (%) of the charged voltage after 5 minutes to the initial charged voltage is higher than 80%.
各サンプルの口開き性を上記インフレーション成形装置で作成したばかりのフィルムで評価した。 (4) Openability test results The openability of each sample was evaluated with the film just prepared by the inflation molding apparatus.
方法=チューブ状のフィルムの四隅をハサミで切り開き、2枚のフィルムの片方を持って持ち上げたときの状態を目視で評価
◎:持ち上げる前からフィルム同士が完全に分離している状態
○:特に力を加えなくてもフィルムの同士が自然にはがれる状態
×:フィルム同士がはがれにくく人為的に力を加えないと分離できない状態 Mouth openness evaluation:
Method = Cut the four corners of the tube-shaped film with scissors and visually evaluate the state when the two films are lifted by holding one of them. ◎: The films are completely separated from each other before being lifted. The film can be peeled off naturally without adding X: The film is difficult to peel off, and cannot be separated without applying artificial force
使用するフッ素系界面活性剤成分中にPFOA(パーフルオロオクタン酸)が含有されている場合は「有」と表記し、含有されていない場合は「無」と表記した。 (5) Presence / absence of PFOA (perfluorooctanoic acid) content When the fluorosurfactant component used contains PFOA (perfluorooctanoic acid), it is described as “Yes”. It was written as “nothing”.
上記配合により、フィルム厚150μm、層比1/3/1の三層フィルム(防曇塗膜塗布タイプ)を作成し、前記方法により水滴接触角測定、展張直後の水滴付着性評価、帯電圧測定、口開き性評価を行なった。その結果を表1に示す。 [Example 1, Comparative Examples 1 to 3]
By the above formulation, a three-layer film (anti-fogging coating application type) with a film thickness of 150 μm and a layer ratio of 1/3/1 is prepared, and the water droplet contact angle measurement, water droplet adhesion evaluation immediately after stretching, and charged voltage measurement by the above methods. The mouth openability was evaluated. The results are shown in Table 1.
上記配合により、フィルム厚150μm、層比1/3/1の三層フィルム(防曇塗膜塗布タイプ)を作成し、前記方法により水滴接触角測定、展張直後の水滴付着性評価、帯電圧測定、口開き性評価行なった。その結果を表2に示す。 [Examples 1 and 2, Comparative Example 4]
By the above formulation, a three-layer film (anti-fogging coating application type) with a film thickness of 150 μm and a layer ratio of 1/3/1 is prepared, and the water droplet contact angle measurement, water droplet adhesion evaluation immediately after stretching, and charged voltage measurement by the above methods. The mouth opening property was evaluated. The results are shown in Table 2.
上記配合により、フィルム厚150μm、層比1/3/1の三層フィルム(防曇塗膜塗布タイプ)を作成し、前記方法により水滴接触角測定、展張直後の水滴付着性評価、帯電圧測定、口開き性評価行なった。その結果を表3に示す。 [Examples 1, 3 and 4, Comparative Examples 5 to 6]
By the above formulation, a three-layer film (anti-fogging coating application type) with a film thickness of 150 μm and a layer ratio of 1/3/1 is prepared, and the water droplet contact angle measurement, water droplet adhesion evaluation immediately after stretching, and charged voltage measurement by the above methods. The mouth opening property was evaluated. The results are shown in Table 3.
上記配合により、フィルム厚150μm、層比1/3/1の三層フィルム(防曇塗膜塗布タイプ)を作成し、前記方法により水滴接触角測定、展張直後の水滴付着性評価、帯電圧測定、口開き性評価の結果、及びPFOA含有の有無を表4に示す。 [Examples 1 and 5]
By the above formulation, a three-layer film (anti-fogging coating application type) with a film thickness of 150 μm and a layer ratio of 1/3/1 is prepared, and the water droplet contact angle measurement, water droplet adhesion evaluation immediately after stretching, and charged voltage measurement by the above methods. Table 4 shows the results of mouth opening evaluation and the presence or absence of PFOA.
また、本発明に係る微粒子成分を外層に添加しない場合は、口開き性に劣り使用上問題がある(比較例5)。更に、本発明に係る微粒子成分の粒径範囲を下回った場合には、微粒子成分を欠いた場合と同様に口開き性に劣り使用上問題がある(比較例6)。つまり本発明に係る構成要素を欠いた場合には、農業用フィルムとして具備すべき性能をバランスよく付与されているとは言えない。 On the other hand, when the fluorine-based surfactant component according to the present invention is lacking, it is not possible to sufficiently suppress the decrease in translucency due to condensation (Comparative Example 1). Further, when a surfactant other than the fluorosurfactant is used, there is an effect of suppressing a decrease in translucency due to condensation, but when comparing Examples 1 and 2 with Comparative Examples 2 to 4, the fluorosurfactant It can be seen that there is a remarkable suppression effect when the agent is used.
Further, when the fine particle component according to the present invention is not added to the outer layer, the openability is inferior and there is a problem in use (Comparative Example 5). Further, when the particle size range of the fine particle component according to the present invention is below, the openability is inferior as in the case where the fine particle component is absent (Comparative Example 6). That is, when the constituent elements according to the present invention are lacking, it cannot be said that the performance to be provided as an agricultural film is provided in a balanced manner.
Claims (10)
- 少なくとも外層、中間層及び内層を有し、ポリオレフィン系樹脂を含有してなる基材フィルムの少なくとも外層にフッ素系界面活性剤成分及び平均粒子径1.0μm以上の微粒子成分を含み、基材フィルムの内層側表面に、合成樹脂バインダー及び無機質コロイドゾル、又は無機質コロイドゾルを主成分とする防曇性塗膜層を設けたことを特徴とする農業用ポリオレフィン系多層フィルム。 At least the outer layer of the substrate film having at least an outer layer, an intermediate layer and an inner layer and containing a polyolefin-based resin contains a fluorosurfactant component and a fine particle component having an average particle size of 1.0 μm or more, A polyolefin multilayer film for agriculture, comprising an anti-fogging coating layer mainly composed of a synthetic resin binder and an inorganic colloid sol or an inorganic colloid sol on the inner layer side surface.
- フッ素系界面活性剤成分が、パーフルオロアルキルエチレンオキシド付加物又はパーフルオロアルキルプロピレンオキシド付加物を含む、請求項1に記載の農業用ポリオレフィン系多層フィルム。 The polyolefin-based multilayer film for agriculture according to claim 1, wherein the fluorine-based surfactant component contains a perfluoroalkylethylene oxide adduct or a perfluoroalkylpropylene oxide adduct.
- 前記パーフルオロアルキルエチレンオキシド付加物又はパーフルオロアルキルプロピレンオキシド付加物が、炭素数5~10のパーフルオロアルキル基を有する、請求項2に記載の農業用ポリオレフィン系多層フィルム。 The agricultural polyolefin-based multilayer film according to claim 2, wherein the perfluoroalkylethylene oxide adduct or perfluoroalkylpropylene oxide adduct has a perfluoroalkyl group having 5 to 10 carbon atoms.
- 前記パーフルオロアルキルエチレンオキシド付加物又はパーフルオロアルキルプロピレンオキシド付加物が、炭素数5~6のパーフルオロアルキル基を有する、請求項3に記載の農業用ポリオレフィン系多層フィルム。 The agricultural polyolefin-based multilayer film according to claim 3, wherein the perfluoroalkylethylene oxide adduct or perfluoroalkylpropylene oxide adduct has a perfluoroalkyl group having 5 to 6 carbon atoms.
- 前記微粒子成分が構成元素成分としてSi,Mg,Al,Li,Caの内から選ばれる少なくとも一つを含有することを特徴とする請求項1~4のいずれか1項に記載の農業用ポリオレフィン系多層フィルム。 The agricultural polyolefin system according to any one of claims 1 to 4, wherein the fine particle component contains at least one selected from Si, Mg, Al, Li, and Ca as a constituent element component. Multilayer film.
- 前記微粒子成分の平均粒子径が5.0μm~20μmである、請求項1~5のいずれか1項に記載の農業用ポリオレフィン系多層フィルム。 The polyolefin multilayer film for agricultural use according to any one of claims 1 to 5, wherein an average particle size of the fine particle component is 5.0 µm to 20 µm.
- 合成樹脂バインダーが、アクリル系樹脂及び/又はウレタン系樹脂であることを特徴とする請求項1~6のいずれか1項に記載の農業用ポリオレフィン系多層フィルム。 The agricultural polyolefin multilayer film according to any one of claims 1 to 6, wherein the synthetic resin binder is an acrylic resin and / or a urethane resin.
- 無機質コロイドゾルがコロイダルシリカ及び/又はコロイダルアルミナであることを特徴とする請求項1~7のいずれか1項に記載の農業用ポリオレフィン系多層フィルム。 The agricultural polyolefin-based multilayer film according to any one of claims 1 to 7, wherein the inorganic colloidal sol is colloidal silica and / or colloidal alumina.
- 基材フィルムの外層及び内層に前記微粒子成分を含む、請求項1~8のいずれか1項に記載の農業用ポリオレフィン系多層フィルム。 The agricultural polyolefin-based multilayer film according to any one of claims 1 to 8, comprising the fine particle component in an outer layer and an inner layer of a base film.
- エチレン(A)と下記式(1)で表される環状アミノビニル化合物(B)との共重合体を基材フィルムの1以上のいずれかの層に含有することを特徴とする、請求項1~9のいずれか1項に記載の農業用ポリオレフィン系多層フィルム。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014524837A JPWO2014010625A1 (en) | 2012-07-13 | 2013-07-10 | Agricultural multilayer film |
KR1020147035787A KR20150035719A (en) | 2012-07-13 | 2013-07-10 | Agricultural multi-layered film |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012-157637 | 2012-07-13 | ||
JP2012157637 | 2012-07-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014010625A1 true WO2014010625A1 (en) | 2014-01-16 |
Family
ID=49916075
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2013/068859 WO2014010625A1 (en) | 2012-07-13 | 2013-07-10 | Agricultural multi-layered film |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPWO2014010625A1 (en) |
KR (1) | KR20150035719A (en) |
CN (1) | CN103538334A (en) |
WO (1) | WO2014010625A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016086737A (en) * | 2014-11-05 | 2016-05-23 | シーアイ化成株式会社 | Olefin system agricultural film |
JP2018170976A (en) * | 2017-03-31 | 2018-11-08 | 住化積水フィルム株式会社 | Agricultural film |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104396644A (en) * | 2014-11-06 | 2015-03-11 | 徐智文 | Fruit cultivating bag and processing method thereof |
CN106034823A (en) * | 2016-05-31 | 2016-10-26 | 浙江科聚特农业科技发展有限公司 | Multilayer film for agricultural greenhouse |
JP6367990B1 (en) * | 2017-02-09 | 2018-08-01 | 竹本油脂株式会社 | Composition for coating thermoplastic polymer film, method for producing composition for coating thermoplastic polymer film, modified thermoplastic polymer film, and method for producing modified thermoplastic polymer film |
JP6502567B1 (en) * | 2018-10-05 | 2019-04-17 | 住友化学株式会社 | Film for agriculture and facility for agriculture and horticulture |
WO2020132923A1 (en) * | 2018-12-26 | 2020-07-02 | 东莞正新包装制品有限公司 | Pe mulch film |
CN109677070B (en) * | 2018-12-26 | 2022-01-04 | 东莞市正新包装制品有限公司 | PE mulching film |
KR102047870B1 (en) | 2019-07-30 | 2019-11-22 | (주)비비스 | Heat insulation sheet having excellent anti-fogging property and melt adhesion strength for vinyl house |
KR102175506B1 (en) | 2019-10-22 | 2020-11-09 | 주식회사 비비스 | Five layer heat insulation sheet having excellent anti-fogging property and melt adhesion strength for vinyl house |
KR20220041275A (en) | 2020-09-24 | 2022-04-01 | 주식회사 비비스 | Five layer heat insulation sheet for vinyl house |
CN114149875A (en) * | 2021-12-06 | 2022-03-08 | 广东舒洁环境科技有限公司 | Neutral environment-friendly cleaning agent and preparation method thereof |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4741953B2 (en) * | 2006-02-03 | 2011-08-10 | Mkvドリーム株式会社 | Polyolefin-based agricultural multilayer film |
JP4966614B2 (en) * | 2006-09-14 | 2012-07-04 | Mkvドリーム株式会社 | Agricultural film |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0948097A (en) * | 1995-08-07 | 1997-02-18 | Mitsubishi Chem Corp | Agricultural film |
CN1532217A (en) * | 2003-03-25 | 2004-09-29 | 姜省民 | Biologically degradable manioc base material and product |
JP2011144122A (en) * | 2010-01-13 | 2011-07-28 | Agc Seimi Chemical Co Ltd | Fluorine-containing compound, fluorine-containing surfactant and composition thereof |
JP5620198B2 (en) * | 2010-09-01 | 2014-11-05 | 日産化学工業株式会社 | Surfactant |
-
2012
- 2012-12-18 CN CN201210551680.7A patent/CN103538334A/en active Pending
-
2013
- 2013-07-10 WO PCT/JP2013/068859 patent/WO2014010625A1/en active Application Filing
- 2013-07-10 JP JP2014524837A patent/JPWO2014010625A1/en active Pending
- 2013-07-10 KR KR1020147035787A patent/KR20150035719A/en not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4741953B2 (en) * | 2006-02-03 | 2011-08-10 | Mkvドリーム株式会社 | Polyolefin-based agricultural multilayer film |
JP4966614B2 (en) * | 2006-09-14 | 2012-07-04 | Mkvドリーム株式会社 | Agricultural film |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016086737A (en) * | 2014-11-05 | 2016-05-23 | シーアイ化成株式会社 | Olefin system agricultural film |
JP2018170976A (en) * | 2017-03-31 | 2018-11-08 | 住化積水フィルム株式会社 | Agricultural film |
Also Published As
Publication number | Publication date |
---|---|
CN103538334A (en) | 2014-01-29 |
JPWO2014010625A1 (en) | 2016-06-23 |
KR20150035719A (en) | 2015-04-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2014010625A1 (en) | Agricultural multi-layered film | |
JP6359271B2 (en) | Polyolefin film for agriculture | |
JP2014018109A (en) | Agricultural multilayered film | |
JP4741953B2 (en) | Polyolefin-based agricultural multilayer film | |
WO2014010626A1 (en) | Agricultural-use multilayered film | |
JP2017104072A (en) | Agricultural multilayer film | |
JP5596999B2 (en) | Agricultural film | |
JP7432630B2 (en) | Agricultural polyolefin multilayer film | |
JP5756603B2 (en) | Agricultural film | |
JP4966614B2 (en) | Agricultural film | |
JP6769951B2 (en) | Agricultural film | |
JP2009202350A (en) | Agricultural film | |
JP4902193B2 (en) | Polyolefin agricultural film | |
JP7164398B2 (en) | Agricultural polyolefin multilayer film | |
JP4902266B2 (en) | Agricultural film | |
JP3707422B2 (en) | Polyolefin agricultural film | |
JP2003199437A (en) | Agricultural film | |
JP3893083B2 (en) | Polyolefin agricultural film | |
JP6564195B2 (en) | Agricultural film | |
JP4742066B2 (en) | Agricultural film | |
JP6998649B2 (en) | Agricultural polyolefin multilayer film | |
JP7105552B2 (en) | Agricultural polyolefin multilayer film | |
JP2002264280A (en) | Agricultural film | |
JP2005323599A (en) | Polyolefin agricultural film | |
JP5764729B1 (en) | Agricultural film |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13816555 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2014524837 Country of ref document: JP Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 20147035787 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 13816555 Country of ref document: EP Kind code of ref document: A1 |