WO2018043469A1 - Procédé de production de film pour emballage souple - Google Patents

Procédé de production de film pour emballage souple Download PDF

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Publication number
WO2018043469A1
WO2018043469A1 PCT/JP2017/030886 JP2017030886W WO2018043469A1 WO 2018043469 A1 WO2018043469 A1 WO 2018043469A1 JP 2017030886 W JP2017030886 W JP 2017030886W WO 2018043469 A1 WO2018043469 A1 WO 2018043469A1
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Prior art keywords
agent
film
polyol
compound
polyisocyanate compound
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PCT/JP2017/030886
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English (en)
Japanese (ja)
Inventor
雅彦 小川
茂和 高橋
長一 高田
直樹 市村
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Dic株式会社
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Publication of WO2018043469A1 publication Critical patent/WO2018043469A1/fr

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Classifications

    • 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
    • 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
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
    • C09J175/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
    • C09J5/04—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving separate application of adhesive ingredients to the different surfaces to be joined

Definitions

  • the present invention relates to a method for producing a flexible packaging film, and more particularly to a production method having a two-liquid fractionation coating step.
  • Two-component curable polyurethane resin adhesives are widely used as adhesives for soft packaging films.
  • the plastic film is printed on the back side, and the ink is applied to the ink surface and the other plastic film is bonded together. There is a need for improved appearance. Furthermore, since a soft packaging material using a plastic laminate is preferred to have a hard texture, and a harder adhesive coating film has a better texture, such a product is desired.
  • a method of coating the substrate with a composition in which two components mainly composed of an isocyanate component and a polyol component are mixed is the mainstream, but it is fast-curing.
  • a method for providing a two-component fractionation-applied urethane adhesive that expresses initial adhesive force quickly and exhibits excellent elasticity, adhesive strength, heat resistance, cold resistance, etc. after curing a two-component fractionation coating step A coating method having the following is also known.
  • the adhesive used in this method is composed of agent A and agent B, and agent A applied to one substrate and agent B applied to the other substrate.
  • the agent A is a non-solvent agent A which is liquid at room temperature and mainly comprises a compound having an isocyanate group at both molecular ends.
  • the B agent is a solvent-free B agent which is liquid at room temperature and contains a compound having an amino group at both molecular ends, a compound having a tertiary amine in the molecule, and a tackifying resin.
  • a two-part fractionation-type urethane adhesive is described.
  • An object of the present invention is to provide a method for producing a flexible packaging film that improves the packaging texture.
  • the present invention relates to a method for producing a flexible packaging film in which a polyurethane adhesive is applied to a base material, wherein the polyurethane adhesive uses the A agent and the B agent as reaction raw materials, and the A agent applied to one base material It has a two-component fractionation coating process in which the B agent applied to the other substrate contacts and pressure-bonds, the A agent contains either a polyol compound or a polyisocyanate compound as a curing component, and the B agent is a curing component As a manufacturing method of the film for flexible packaging containing any one of the polyol compound or polyisocyanate compound different from A agent as.
  • the present invention also provides a soft food packaging material using a soft packaging film obtained by the production method described in the previous term.
  • a method for producing a film for soft packaging in which there is less entrapment of bubbles during lamination, the appearance of the laminate film is improved, the adhesive coating film after curing becomes hard, and the texture of the soft packaging is improved. can do.
  • agent A contains either a polyol compound or a polyisocyanate compound as a curing component
  • agent B as a curing component. It includes any one of different polyol compounds or polyisocyanate compounds.
  • B agent when a polyol compound is included as a hardening component of A agent, B agent contains a polyisocyanate compound.
  • the agent B when a polyisocyanate compound is included as a curing component of the agent A, the agent B includes a polyol compound.
  • the agent A or agent B does not contain both a polyol compound and a polyisocyanate compound.
  • the polyol compound used in the present invention is not particularly limited.
  • polyester polyol, polyether polyol, polyether ester polyol, polyester (polyurethane) polyol, polyether (polyurethane) polyol, polyester amide polyol, acrylic polyol, polycarbonate polyol Mention may be made of polymer polyols selected from polyhydroxyl alkanes, polyurethane polyols, castor oil or mixtures thereof.
  • polyester polyol examples include dibasic acids such as terephthalic acid, isophthalic acid, adipic acid, azelaic acid, sebacic acid, or dialkyl esters thereof, or mixtures thereof, for example, ethylene glycol, propylene glycol, diethylene glycol, butylene glycol, neodymium.
  • dibasic acids such as terephthalic acid, isophthalic acid, adipic acid, azelaic acid, sebacic acid, or dialkyl esters thereof, or mixtures thereof, for example, ethylene glycol, propylene glycol, diethylene glycol, butylene glycol, neodymium.
  • Glycols such as pentyl glycol, 1,6-hexanediol, 3-methyl-1,5-pentanediol, 3,3′-dimethylol heptane, polyoxyethylene glycol, polyoxypropylene glycol, polytetramethylene ether glycol or the like; Ring opening of lactones such as polyester polyol or polycaprolactone, polyvalerolactone, poly ( ⁇ -methyl- ⁇ -valerolactone) obtained by reacting with these mixtures The polyester polyol obtained by superposition
  • polymerization is mentioned.
  • polyether polyol for example, an oxirane compound such as ethylene oxide, propylene oxide, butylene oxide, and tetrahydrofuran is polymerized using, for example, water, ethylene glycol, propylene glycol, trimethylolpropane, glycerin, and the like as a low-part polyol.
  • the polyether polyol obtained is mentioned.
  • the polyether ester polyol include a polybasic acid obtained by reacting the above polyether polyol with a dibasic acid such as terephthalic acid, isophthalic acid, adipic acid, azelaic acid, sebacic acid or the like or a mixture thereof. Examples include ether ester polyols.
  • the polyether (polyurethane) polyol is a polyol having a urethane bond in one molecule.
  • it is a reaction product of a polyether polyol having a number average molecular weight of 200 to 20,000 and an organic polyisocyanate, and NCO / OH is 1 It is preferably less than 0.9, more preferably 0.9 or less.
  • polyester (polyurethane) polyol examples include a reaction product of a polyester polyol, a polyether ester polyol, and the like and an organic polyisocyanate, and NCO / OH is preferably less than 1, more preferably 0.9 or less.
  • the polyesteramide polyol can be obtained, for example, by using an aliphatic diamine having an amino group such as ethylenediamine, propylenediamine, hexamethylenediamine as a raw material in the esterification reaction.
  • acrylic polyols include hydroxyethyl acrylate, hydroxypropyl acrylate, hydroxyhydroxybutyl, etc., or their corresponding methacrylic acid derivatives containing one or more hydroxyl groups in one molecule, such as acrylic acid, methacrylic acid, etc. It is obtained by copolymerizing an acid or its ester.
  • polycarbonate polyol examples include ethylene glycol, propylene glycol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 3-methyl-1,5-pentanediol, and 1,9-nonane.
  • polyhydroxyalkane examples include butadiene or liquid rubber obtained by copolymerization with butadiene and acrylamide.
  • a polyether (polyurethane) polyol is particularly preferable.
  • polyisocyanate compound examples include organic compounds having at least two isocyanate groups in the molecule.
  • examples of the organic polyisocyanate compound include tolylene diisocyanate, xylylene diisocyanate, diphenylmethane diisocyanate, 1,6-hexamethylene diisocyanate, isophorone diisocyanate, 4,4′-methylenebis (cyclohexyl isocyanate), lysine diisocyanate, trimethylhexamethylene diisocyanate, Polyisocyanates such as 1,3- (isocyanatomethyl) cyclohexane, 1,5-naphthalene diisocyanate, triphenylmethane triisocyanate; adducts of these polyisocyanates, burettes of these polyisocyanates, or these polyisocyanates And polyisocyanate derivatives (modified products) such as isocyanurates.
  • the polyisocyanate compound used in the present invention acts as a curing agent and can be appropriately selected and used, but may be aromatic or aliphatic.
  • the polyisocyanate compound preferably used in the present invention include polyisocyanates such as hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPDI), and diphenylmethane diisocyanate (MDI).
  • HDI hexamethylene diisocyanate
  • IPDI isophorone diisocyanate
  • MDI diphenylmethane diisocyanate
  • the curing agent exhibits performance only with the polyisocyanate compound (B), it can also impart high hydrolysis resistance to the cured coating film by using the polyisocyanate compound and the epoxy resin described later.
  • reaction product of polyisocyanate and bis (hydroxyalkyl) amine having a urea bond group at the terminal can be preferably used.
  • the blending ratio of the polyol compound and the polyisocyanate compound is such that the equivalent ratio [(b) / (a)] of the solid content hydroxyl equivalent (a) of the polyol compound to the solid isocyanate equivalent (b) of the polyisocyanate compound is 0. It is designed to be 5 to 4.0, more preferably 0.9 to 3.0.
  • the amount of the polyisocyanate compound contained in the B agent is calculated from the solid content hydroxyl equivalent (a) of the polyol compound contained in the A agent. decide.
  • the agent A or agent B used in the present invention may contain a catalyst for promoting the reaction, if necessary.
  • the catalyst used in the present invention is not particularly limited as long as it is for accelerating the urethanization reaction.
  • a catalyst such as a compound / titanium chelate complex can be used.
  • the catalyst can be used in the coating step in the form of a solution or dispersion, and used in the form of a solution or dispersion with an organic solvent, a plasticizer, a polyol such as polyethylene polyol or polypropylene polyol, or the polyol compound of the present invention. be able to.
  • the polyurethane resin production catalyst used in the present invention include known and commonly used catalysts such as metal-based catalysts, amine-based catalysts, DBU-based, aliphatic cyclic amide compounds, and titanium chelate complexes.
  • the metal catalyst examples include a metal complex system, an inorganic metal system, and an organic metal system.
  • the metal complex system is selected from the group consisting of Fe (iron), Mn (manganese), Cu (copper), Zr (zirconium), Th (thorium), Ti (titanium), Al (aluminum), and Co (cobalt).
  • Metal acetylacetonate salt for example, iron acetylacetonate, manganese acetylacetonate, copper acetylacetonate, zirconia acetylacetonate, etc.
  • iron acetylacetonate Acetonate (Fe (acac) 3 ) or manganese acetylacetonate (Mn (acac) 2 ) is preferred.
  • inorganic metal catalyst examples include catalysts selected from Fe, Mn, Cu, Zr, Th, Ti, Al, Co, and the like.
  • organometallic catalysts include stannous diacetate, stannous dioctoate, stannous dioleate, stannous dilaurate, dibutyltin oxide, dibutyltin diacetate, dibutyltin dilaurate, dibutyltin dichloride, dioctyltin dilaurate, nickel octylate, Examples thereof include nickel naphthenate, cobalt octylate, cobalt naphthenate, bismuth octylate, and bismuth naphthenate. Of these, preferred compounds are organotin catalysts, and more preferred are stannous dioctate and dibutyltin dilaurate.
  • the tertiary amine catalyst is not particularly limited as long as it is a compound having the above structure, and examples thereof include triethylenediamine, 2-methyltriethylenediamine, quinuclidine, and 2-methylquinuclidine. Among these, triethylenediamine and 2-methyltriethylenediamine are preferable because of their excellent catalytic activity and industrial availability.
  • tertiary amine catalysts include N, N, N ′, N′-tetramethylethylenediamine, N, N, N ′, N′-tetramethylpropylenediamine, N, N, N ′, N ′′, N "-Pentamethyldiethylenetriamine, N, N, N ', N", N "-pentamethyl- (3-aminopropyl) ethylenediamine, N, N, N', N", N "-pentamethyldipropylenetriamine, N, N, N ′, N′-tetramethylhexamethylenediamine, bis (2-dimethylaminoethyl) ether, dimethylethanolamine, dimethylisopropanolamine, dimethylaminoethoxyethanol, N, N-dimethyl-N ′-(2-hydroxy Ethyl) ethylenediamine, N, N-dimethyl-N ′-(2-hydroxyethyl) propanediamine, bis Dimethyla
  • Examples of the aliphatic cyclic amide compound include ⁇ -valerolactam, ⁇ -caprolactam, ⁇ -enanthol lactam, ⁇ -capryllactam, ⁇ -propiolactam, and the like.
  • ⁇ -caprolactam is preferable from the viewpoint of excellent curing acceleration effect.
  • the titanium chelate complex is a compound whose catalytic activity is enhanced by ultraviolet irradiation, and is preferably a titanium chelate complex having an aliphatic or aromatic diketone as a ligand from the viewpoint of excellent curing acceleration effect. Further, in the present invention, those having an alcohol having 2 to 10 carbon atoms in addition to an aromatic or aliphatic diketone as a ligand are preferable because the effects of the present invention become more remarkable.
  • the above catalysts may be used alone or in combination.
  • the amount of the catalyst used may be converted from the amount of polyol used for the agent A or agent B. For example, when the polyol is 100 parts, it is preferably 0.001 to 10 parts, more preferably 0.00. 01 to 10 parts.
  • the catalyst in the method of the present invention, it is desirable to use the catalyst by mixing it in advance with a polyol compound or an isocyanate compound used for the agent A or agent B. Further, it can be used by dissolving in a solvent when mixing.
  • the solvent is not particularly limited.
  • alcohols such as ethylene glycol, diethylene glycol, dipropylene glycol, propylene glycol, and butanediol
  • hydrocarbons such as toluene, xylene, and mineral terpenes
  • acetic acid Esters such as ethyl, butyl acetate, methyl glycol acetate, and cellosolve acetate
  • organic solvents such as methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone and other ketones
  • ⁇ -diketones such as acetylacetone and its fluorinated substituents
  • examples include chelatable solvents such as ketoesters such as ethyl acetate.
  • the adhesive used in the present invention may contain other additives other than those described above, if necessary.
  • the additive include additives generally used in resin compositions that form films and coating films.
  • Additives include, for example, colloidal silica; inorganic fine particles such as alumina sol; polymethyl methacrylate organic fine particles; antifoaming agents; anti-sagging agents; silane coupling agents; viscosity modifiers; Peroxide decomposer; Flame retardant; Reinforcing agent; Plasticizer; Lubricant; Rust preventive agent; Fluorescent whitening agent; Inorganic heat absorber; Flameproof agent; Antistatic agent; Can be mentioned.
  • an epoxy group-containing compound may be blended for the purpose of promoting adhesion and curing.
  • the epoxy group-containing compound include triglycidyl tris (2-hydroxyethyl) isocyanurate, neopentyl glycol diglycidyl ether, 1,6-hexanediol diglycidyl ether, acrylic glycidyl ether, 2-ethylhexyl glycidyl ether, phenyl glycidyl ether, phenol glycidyl ether, pt-butylphenyl glycidyl ether, adipic acid diglycidyl ester, o-phthalic acid diglycidyl ester , Glycidyl methacrylate, butyl glycidyl ether, etc., oligomers containing epoxy groups with molecular weights of hundreds to thousands, and polymers with weight average molecular weights of thousands to hundreds of thousands. Even
  • thermoplastic elastomers known and commonly used thermoplastic elastomers, tackifiers, catalysts, phosphoric acid compounds, melamine resins, or reactive elastomers can be used as other additives.
  • the content of these additives can be appropriately adjusted and used as long as the function of the adhesive of the present invention is not impaired.
  • Examples of the film used in the present invention include paper, plastic film, metal vapor deposition film or copper foil, metal foil such as aluminum foil, and the like.
  • a plastic film is a biaxially stretched film made of an organic polymer resin, stretched in the longitudinal direction and / or width direction after melt extrusion, and further heat-set and cooled, or heated without stretching after melt extrusion. Non-stretched film that has been fixed and cooled.
  • Organic polymer resins include olefin resins, acrylonitrile-butadiene-styrene copolymers (ABS resins), polyvinyl chloride resins, fluorine resins, poly (meta )
  • ABS resins acrylonitrile-butadiene-styrene copolymers
  • polyvinyl chloride resins fluorine resins
  • poly (meta ) There are acrylic resins, carbonate resins, polyamide resins, polyimide resins, polyphenylene ether resins, polyphenylene sulfide resins, and biaxially stretched films were obtained from polyester resins such as polyethylene terephthalate (PET).
  • PET polyethylene terephthalate
  • Synthetic resin film biaxially oriented polypropylene (OPP), plastic Vinylidene chloride-coated OPP (KOP), nylon (NY), polyvinylidene chloride-coated nylon, polyvinyl chloride, polyvinyl alcohol, biaxially oriented polystyrene (OPS), and the like.
  • Non-stretched films include LDPE (low density polyethylene), LLDPE (linear low density polyethylene), MDPE (medium density polyethylene), HDPE (high density polyethylene), EVA (ethylene-vinyl acetate copolymer), Examples thereof include CPP (non-axially stretched polypropylene).
  • These organic polymer resins may be copolymerized in a small amount with other organic monomers or blended with other organic polymers.
  • the film etc. which have a vapor deposition film on the said plastic film like aluminum vapor deposition PET, silica vapor deposition PET, alumina vapor deposition PET, and aluminum vapor deposition CPP are mentioned.
  • the transparency of the film is not particularly limited, but when transparency is required, a film having a light transmittance of 50% or more is preferable.
  • the plastic film before the organic layer or inorganic layer is laminated may be subjected to surface treatment such as corona discharge treatment, plasma discharge treatment, flame treatment, surface roughening treatment, known anchor coating treatment, printing, decoration, etc. Good.
  • the thickness of the film is preferably in the range of 3 to 500 ⁇ m, more preferably in the range of 6 to 300 ⁇ m.
  • the polyurethane adhesive used in the present invention can be dissolved in a suitable solvent or dispersant such as an ester solvent, a ketone solvent, an aromatic hydrocarbon, an aliphatic hydrocarbon, and an alicyclic hydrocarbon at an arbitrary ratio.
  • a suitable solvent or dispersant such as an ester solvent, a ketone solvent, an aromatic hydrocarbon, an aliphatic hydrocarbon, and an alicyclic hydrocarbon at an arbitrary ratio.
  • a suitable solvent or dispersant such as an ester solvent, a ketone solvent, an aromatic hydrocarbon, an aliphatic hydrocarbon, and an alicyclic hydrocarbon at an arbitrary ratio.
  • a suitable solvent or dispersant such as an ester solvent, a ketone solvent, an aromatic hydrocarbon, an aliphatic hydrocarbon, and an alicyclic hydrocarbon at an arbitrary ratio.
  • Disperse die coat, lip coat, gravure coat, direct reverse gravure coat, kiss reverse gravure coat, non-sol coat, roll coat, reverse
  • the polyurethane adhesive used in the present invention does not contain an organic solvent having high solubility such as an ester solvent, a ketone solvent, an aromatic hydrocarbon, an aliphatic hydrocarbon, an alicyclic hydrocarbon, or the like. It can also be used as a solvent type.
  • an organic solvent having high solubility such as an ester solvent, a ketone solvent, an aromatic hydrocarbon, an aliphatic hydrocarbon, an alicyclic hydrocarbon, or the like. It can also be used as a solvent type.
  • the amount of the polyurethane adhesive used in the present invention applied to the film is not particularly limited, but is, for example, from 0.1 to 10 g / m 2 , and particularly from 0.1 to 5.0 g / m 2 . It is preferable to select from the viewpoint that excellent weather resistance and the like can be imparted in a small amount.
  • the coating weight is less than 0.1 g / m 2 , a problem arises in continuous uniform coating properties.
  • the coating weight exceeds 10.0 g / m 2 , the solvent detachability after coating is lowered and workability is reduced. In addition to a significant reduction, the problem of residual solvent arises.
  • the polyurethane adhesive used in the present invention is composed of the A agent and the B agent, and is applied to the A agent applied to one base material and the other base material. It is a two-component fractional coating process in which the B agent comes into contact and pressure bonding, and the A agent contains either a polyol compound or a polyisocyanate compound as a curing component, and the B agent is different from the A agent as a curing component. Or any one of a polyisocyanate compound is included.
  • the pressure bonding method is preferably a method of bonding by dry lamination (dry lamination method).
  • the temperature of the laminating roll is preferably about room temperature to 120 ° C., and the pressure is preferably about 3 to 300 kg / cm 2 . In this way, a flexible packaging film can be obtained.
  • the film for soft packaging coated with the adhesive used in the present invention is preferably subjected to aging after production.
  • the aging conditions are preferably a temperature of 25 to 80 ° C. and a time of 12 to 240 hours, during which the adhesive strength is generated.
  • the appearance of the laminate film is improved, and the production of a flexible packaging film with improved soft packaging texture is possible. It can be used as a packaging material for food. Other various packaging materials can be used industrially.
  • Example 1 A polyisocyanate compound (manufactured by DIC Corporation: aromatic polyether isocyanate 2K-SF-220A) is applied to an ink surface of a printed PET (polyethylene terephthalate) film 12 ⁇ m, while aluminum vapor deposited CPP (unstretched polypropylene) 30 ⁇ m.
  • a polyol compound manufactured by DIC Corporation: polyether polyol HA-220B was applied to the vapor-deposited surface, and the coated surfaces were pressure-bonded with a nip roll (nip roll temperature: 50 ° C.) to produce a plastic film laminate.
  • the processing speed was 200 m / min, and the adhesive coating amount was 1.8 g / m 2 .
  • Example 2 A polyol compound (manufactured by DIC Corporation: polyether polyol HA-220B) is applied to an ink surface of a printed PET (polyethylene terephthalate) film 12 ⁇ m, while a polyisocyanate is deposited on an aluminum-deposited CPP (unstretched polypropylene) 30 ⁇ m deposition surface.
  • a compound (DIC Co., Ltd .: aromatic polyether isocyanate 2K-SF-220A) was applied, and the coated surfaces were pressure-bonded with a nip roll (nip roll temperature: 50 ° C.) to produce a plastic film laminate.
  • the processing speed was 200 m / min, and the adhesive coating amount was 1.8 g / m 2 .
  • Example 3 Polyisocyanate compound (DIC Corporation: aromatic polyether isocyanate 2K-SF-220A) and catalyst (photo-latent titanium catalyst and ⁇ -caprolactam) are applied to the printed surface of 12 ⁇ m PET (polyethylene terephthalate) film. The added mixture is applied, and on the other hand, a polyol compound (DIC Co., Ltd .: polyether polyol HA-220B) is applied to a vapor-deposited surface of aluminum vapor-deposited CPP (unstretched polypropylene) 30 ⁇ m, and the nip roll (nip roll temperature: (50 ° C.) to produce a plastic film laminate. The processing speed was 200 m / min, and the adhesive coating amount was 1.8 g / m 2 .
  • DIC Co., Ltd . polyether polyol HA-220B
  • Example 4 A mixture obtained by adding a polyol compound (manufactured by DIC Corporation: polyether polyol HA-220B) and a catalyst (photolatent titanium catalyst and ⁇ -caprolactam) to an ink surface of a printed PET (polyethylene terephthalate) film 12 ⁇ m is applied.
  • a polyisocyanate compound manufactured by DIC Corporation: aromatic polyether isocyanate 2K-SF-220A
  • the processing speed was 200 m / min, and the adhesive coating amount was 1.8 g / m 2 .
  • Example 5 A polyisocyanate compound (manufactured by DIC Corporation: aromatic polyether isocyanate 2K-SF-220A) is applied to a corona-treated surface of a PET (polyethylene terephthalate) film 50 ⁇ m, while a linear low density polyethylene (LLDPE) 60 ⁇ m is coated.
  • a polyol compound manufactured by DIC Corporation: polyether polyol HA-220B was applied to the corona-treated surface, and the coated surfaces were pressure-bonded by hand bonding without using a laminating machine to produce a plastic film laminate.
  • the adhesive application amount was 15 g / m 2 .
  • Example 6 A polyol compound (manufactured by DIC Corporation: polyether polyol HA-220B) is applied to a corona-treated surface of a PET (polyethylene terephthalate) film 50 ⁇ m, while a polyisocyanate is applied to a corona-treated surface of a linear low density polyethylene (LLDPE) 60 ⁇ m.
  • a compound manufactured by DIC Corporation: aromatic polyether isocyanate 2K-SF-220A was applied, and the coated surfaces were pressure-bonded by hand bonding without using a laminating machine to produce a plastic film laminate.
  • the adhesive application amount was 15 g / m 2 .
  • Example 7 Polyisocyanate compound (manufactured by DIC Corporation: aromatic polyether isocyanate 2K-SF-220A) and catalyst (photolatent titanium catalyst and ⁇ -caprolactam) were added to the corona-treated surface of 50 ⁇ m PET (polyethylene terephthalate) film.
  • a polyol compound (DIC Co., Ltd .: polyether polyol HA-220B) was applied to a corona-treated surface of linear low density polyethylene (LLDPE) 60 ⁇ m, and a laminating machine was used between the coated surfaces.
  • LLDPE linear low density polyethylene
  • a plastic film laminate was prepared by hand bonding. The adhesive application amount was 15 g / m 2 .
  • Example 8 A PET (polyethylene terephthalate) film was coated on a corona-treated surface of 50 ⁇ m with a mixture in which a polyol compound (manufactured by DIC Corporation: polyether polyol HA-220B) and a catalyst (photolatent titanium catalyst and ⁇ -caprolactam) were added, Apply a polyisocyanate compound (manufactured by DIC Corporation: aromatic polyether isocyanate 2K-SF-220A) to a corona-treated surface of linear low density polyethylene (LLDPE) 60 ⁇ m, and use a laminating machine between the coated surfaces.
  • a plastic film laminate was prepared by hand bonding. The adhesive application amount was 15 g / m 2 .
  • the soft wrapping film obtained by the method for producing a soft wrapping film having the two-component fractionation coating process of the present invention is excellent in appearance and texture, as apparent from the results of the above examples and comparative examples. It is clear that there is no soft packaging film.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

Procédé de production d'un film pour emballage souple dans lequel un agent adhésif de polyuréthane est appliqué à un matériau de base, dans lequel : l'agent adhésif de polyuréthane comporte un agent A et un agent B en tant que matériaux de base à réaction ; le procédé comprend une étape d'application séparée de deux liquides dans laquelle l'agent A, qui est appliqué à un matériau de base, et l'agent B, qui est appliqué à un autre matériau de base, entrent en contact et se lient sous pression ; l'agent A contient soit un composé polyol soit un composé polyisocyanate en tant que composant de durcissement ; et l'agent B contient soit un composé polyol soit un composé polyisocyanate en tant que composant de durcissement différent de celui de l'agent A.
PCT/JP2017/030886 2016-09-05 2017-08-29 Procédé de production de film pour emballage souple WO2018043469A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-172726 2016-09-05
JP2016172726 2016-09-05

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CN108559440A (zh) * 2018-04-27 2018-09-21 上海回天新材料有限公司 一种高速复合、快速熟化的无溶剂型聚氨酯复膜胶及其制备方法和应用
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WO2022172436A1 (fr) * 2021-02-15 2022-08-18 Dic株式会社 Adhésif à durcissement bi-composant, film stratifié, dispositif de production de film stratifié et procédé de production de film stratifié
WO2022172448A1 (fr) * 2021-02-15 2022-08-18 Dic株式会社 Adhésif à durcissement bi-composant, film stratifié, dispositif de production de film stratifié et procédé de production de film stratifié
WO2022239667A1 (fr) * 2021-05-11 2022-11-17 Dic株式会社 Procédé de production de stratifié
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CN108559440A (zh) * 2018-04-27 2018-09-21 上海回天新材料有限公司 一种高速复合、快速熟化的无溶剂型聚氨酯复膜胶及其制备方法和应用
CN108559435A (zh) * 2018-04-27 2018-09-21 上海回天新材料有限公司 一种与聚氨酯油墨匹配性优良的无溶剂型聚氨酯复膜胶及其制备方法和应用
CN115461424A (zh) * 2020-06-18 2022-12-09 Dic株式会社 粘接剂、层叠体、层叠体的制造方法、包装材料
JPWO2021256270A1 (fr) * 2020-06-18 2021-12-23
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JP2023024587A (ja) * 2020-06-18 2023-02-16 Dic株式会社 接着剤、積層体、積層体の製造方法、包装材
JP7207609B2 (ja) 2020-06-18 2023-01-18 Dic株式会社 接着剤、積層体、積層体の製造方法、包装材
CN115551965A (zh) * 2021-02-15 2022-12-30 Dic株式会社 双组分固化型粘接剂、层叠薄膜、层叠薄膜制造装置、层叠薄膜的制造方法
CN115413294A (zh) * 2021-02-15 2022-11-29 Dic株式会社 双组分固化型粘接剂、层叠薄膜、层叠薄膜制造装置、层叠薄膜的制造方法
JP7136363B1 (ja) * 2021-02-15 2022-09-13 Dic株式会社 二液硬化型接着剤、積層フィルム、積層フィルム製造装置、積層フィルムの製造方法
US11525074B2 (en) 2021-02-15 2022-12-13 Dic Corporation Two-component curing adhesive, laminated film, laminated film-manufacturing apparatus, and method for manufacturing laminated film
JP7136364B1 (ja) * 2021-02-15 2022-09-13 Dic株式会社 二液硬化型接着剤、積層フィルム、積層フィルム製造装置、積層フィルムの製造方法
WO2022172448A1 (fr) * 2021-02-15 2022-08-18 Dic株式会社 Adhésif à durcissement bi-composant, film stratifié, dispositif de production de film stratifié et procédé de production de film stratifié
EP4071222A4 (fr) * 2021-02-15 2023-01-25 DIC Corporation Adhésif à durcissement bi-composant, film stratifié, dispositif de production de film stratifié et procédé de production de film stratifié
TWI792909B (zh) * 2021-02-15 2023-02-11 日商Ｄｉｃ股份有限公司 二液硬化型接著劑、積層膜、積層膜製造裝置、積層膜之製造方法
WO2022172436A1 (fr) * 2021-02-15 2022-08-18 Dic株式会社 Adhésif à durcissement bi-composant, film stratifié, dispositif de production de film stratifié et procédé de production de film stratifié
WO2022239667A1 (fr) * 2021-05-11 2022-11-17 Dic株式会社 Procédé de production de stratifié
WO2023032690A1 (fr) * 2021-08-31 2023-03-09 Dic株式会社 Adhésif, stratifié, procédé de fabrication de stratifié, et matériau d'emballage
JP7306597B1 (ja) * 2021-08-31 2023-07-11 Dic株式会社 接着剤、積層体、積層体の製造方法、包装材

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