WO2019188841A1 - Film de résine multicouche étiré - Google Patents

Film de résine multicouche étiré Download PDF

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Publication number
WO2019188841A1
WO2019188841A1 PCT/JP2019/012240 JP2019012240W WO2019188841A1 WO 2019188841 A1 WO2019188841 A1 WO 2019188841A1 JP 2019012240 W JP2019012240 W JP 2019012240W WO 2019188841 A1 WO2019188841 A1 WO 2019188841A1
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Prior art keywords
resin
mass
layer
stretched
solvent
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PCT/JP2019/012240
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English (en)
Japanese (ja)
Inventor
暢洋 岩谷
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株式会社ユポ・コーポレーション
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Priority to JP2020509991A priority Critical patent/JPWO2019188841A1/ja
Publication of WO2019188841A1 publication Critical patent/WO2019188841A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
    • 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
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • 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
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • 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

Definitions

  • the present invention relates to a stretched multilayer resin film, and more particularly to a stretched multilayer resin film suitably used for offset printing.
  • offset printing so-called lithographic printing
  • lithographic printing can be easily performed in multicolor printing, and is used for printing on paper (natural pulp paper), polyethylene terephthalate film, polyamide film, coated paper, and the like.
  • the general-purpose dry offset ink is composed of, for example, the composition shown in FIG. 1 and Table 1.
  • the vehicle shown in FIG. 1 is a liquid component among the components constituting the printing ink, and the pigment is dispersed to impart fluidity to the ink.
  • the ink fountain passes through each roller, plate, and blanket. It functions to move smoothly to the surface to be printed and to change to solid after printing and to fix the pigment to the printing surface.
  • resin and mineral oil high boiling petroleum solvent
  • Quick-drying ink is used.
  • a polyolefin resin 40 to 40 can be used as a stretched multilayer resin film having excellent printability in which irregularities are not formed on the surface even when offset printing is performed using a general-purpose quick-drying offset ink, and curling does not occur on the entire film.
  • Surface containing 0 to 85% by weight of polyolefin resin and 15 to 100% by weight of amorphous resin on at least one side of the base material layer (A) containing 90% by weight and 10 to 60% by weight of inorganic or organic fine powder A multilayer resin stretched film having a layer (B) and a surface layer (B) having a porosity of 5% or less has been proposed (see Patent Document 6).
  • the present invention provides a multilayer resin stretched film that is more excellent in printability (preventing solvent attack and ink drying properties). With the goal.
  • the inventor has obtained a porous substrate layer containing an olefin resin, a solvent absorbing layer containing a solvent absorbing resin having a specific range of solubility parameter (SP value), and a fine particle-containing layer.
  • SP value solubility parameter
  • the present invention is characterized by the following ⁇ 1> to ⁇ 7>.
  • a multilayer resin stretched film including a porous base material layer, a solvent absorption layer and a fine particle-containing layer in this order,
  • the porous substrate layer contains 20 to 90% by mass of the olefin resin and 10 to 80% by mass in total of at least one of organic fine powder and inorganic fine powder,
  • the solvent-absorbing layer contains 15 to 100% by mass of a solvent-absorbing resin having a solubility parameter (SP value) of 10 or less, and the fine particle-containing layer has a thickness X ( ⁇ m) and a thickness Y ( ⁇ m) of the solvent-absorbing layer.
  • SP value solubility parameter
  • the fine particle-containing layer contains at least one resin selected from the group consisting of a vinyl acetate resin, an ester resin, and a styrene-acrylic acid resin as a binder component. Multilayer resin stretched film.
  • the solvent-absorbing resin includes at least one resin selected from the group consisting of an amorphous propylene-based copolymer resin, a cyclic olefin-based resin, a petroleum resin, a polystyrene resin, and a polymethyl methacrylate resin.
  • the multilayer resin stretched film according to any one of 1> to ⁇ 3>.
  • the solvent absorbing layer contains 15 to 80% by mass of a solvent absorbing resin having a solubility parameter (SP value) of 8 or less as the solvent absorbing resin.
  • SP value solubility parameter
  • the porous base material layer includes, as the olefin resin, at least one of ethylene resin and propylene resin in a total amount of 20 to 50% by mass, and at least one of the inorganic fine powder and organic fine powder.
  • the multilayer resin stretched film according to any one of the above ⁇ 1> to ⁇ 5> which is a uniaxially stretched layer containing a total of 50 to 80% by mass of either of these.
  • the porous base material layer includes 55 to 90% by mass in total of at least one of an ethylene resin and a propylene resin as the olefin resin, and at least one of the inorganic fine powder and the organic fine powder.
  • the stretched multilayer resin film according to the present invention can effectively prevent the film from becoming uneven due to the vehicle in the offset ink when offset printing is performed, and has excellent ink drying properties. Furthermore, even if it is thinner than the conventional one, it has a solvent absorbability equivalent to or higher than the conventional one. For this reason, it is extremely excellent in printability as a multilayer resin stretched film, and is very useful as a wide range of printing sheets including poster paper, wrapping paper, labels, and the like.
  • FIG. 1 is a phylogenetic tree showing the basic composition of offset printing ink.
  • FIG. 2 is a schematic cross-sectional view showing an example of the configuration of the multilayer resin stretched film.
  • the stretched multilayer resin film according to the present invention includes a porous base material layer, a solvent absorption layer, and a fine particle-containing layer in this order, and the porous base material layer contains 20 to 90% by mass of an olefin resin and organic fine particles. 10 to 80% by mass in total of at least one of powder and inorganic fine powder, and the solvent absorption layer contains 15 to 100% by mass of a solvent absorbent resin having a solubility parameter (SP value) of 10 or less, and
  • SP value solubility parameter
  • the ratio (X / Y) of the thickness X ( ⁇ m) of the fine particle-containing layer to the thickness Y ( ⁇ m) of the solvent absorption layer is 1.3 to 40.
  • the porous substrate layer contains 20 to 90% by mass of the olefin resin and 10 to 80% by mass in total of at least one of inorganic fine powder and organic fine powder.
  • the type of olefin resin is not particularly limited.
  • an ⁇ -olefin having 2 to 8 carbon atoms such as ethylene, propylene, 1-butene, 1-hexene, 1-heptene, 1-octene, 4-methyl-1-pentene, 3-methyl-1-pentene, etc.
  • Polymers and copolymers of 2 to 5 kinds of these ⁇ -olefins can be used.
  • the copolymer may be a random copolymer or a block copolymer.
  • branched polyethylene linear polyethylene having a density of 0.89 to 0.97 g / cm 3 and a melt flow rate (190 ° C., 2.16 kg load) of 1 to 10 g / 10 min; 230 ° C., 2.16 kg load) 0.2-10 g / 10 min propylene homopolymer, (4-methyl-1-pentene) homopolymer, propylene / ethylene copolymer, propylene / 1-butene copolymer Polymer, propylene / ethylene / 1-butene copolymer, propylene / 4-methyl-1-pentene copolymer, propylene / 3-methyl-1-pentene copolymer, poly (1-butene), poly (4- Methyl-1-pentene), propylene / ethylene / 3-methyl-1-pentene copolymer, and the like.
  • ethylene-based resin containing ethylene as a raw material monomer
  • propylene-based resin containing propylene as a raw material monomer
  • Propylene homopolymer, propylene / ethylene random copolymer, high-density polyethylene it is more preferable because it is inexpensive and has good moldability.
  • the olefin resin one having a melting point (DSC curve peak temperature) of 130 to 210 ° C. is more preferable. Among them, the melting point (DSC curve peak temperature) is 155 to 174 ° C., the melt flow rate (JIS K7210: 2014) is 0.5 to 10 g / 10 min, and the crystallinity is 45 to 70%.
  • a propylene homopolymer can be preferably used.
  • one type may be selected from the olefin-based resins and used alone, or two or more types may be selected and used in combination.
  • the inorganic fine powder and / or organic fine powder used for the porous substrate layer preferably has an average particle size of 0.01 to 10 ⁇ m, more preferably 0.05 to 8 ⁇ m.
  • the inorganic fine powder include heavy calcium carbonate, light calcium carbonate, calcined clay, talc, titanium oxide, barium sulfate, aluminum sulfate, silica, zinc oxide, magnesium oxide, diatomaceous earth, and the like.
  • heavy calcium carbonate, clay, and diatomaceous earth are preferable because they are inexpensive and have good hole forming properties during stretching.
  • organic fine powder examples include polyethylene terephthalate, polybutylene terephthalate, polyamide, polycarbonate, polyethylene naphthalate, polystyrene, melamine resin, polyethylene sulfite, polyimide, polyethyl ether ketone, and polyphenylene sulfite.
  • an incompatible fine powder having a melting point higher than that of the olefin resin to be used is preferable from the viewpoint of pore formation.
  • one type selected from the above fine powders may be used alone, or two or more types may be selected and used in combination.
  • an organic fine powder and an inorganic fine powder may be mixed and used.
  • the blending ratio of the olefin resin and the inorganic fine powder and / or organic fine powder in the porous substrate layer is 20 to 90% by mass for the olefin resin, and 10 to 10 in total for the inorganic fine powder and / or the organic fine powder. 80% by mass.
  • the polyolefin resin is preferably at least one of ethylene resin and propylene resin, and the total of ethylene resin and / or propylene resin
  • the content of is more preferably 20% by mass or more, further preferably 25% by mass or more, and further preferably 30% by mass or more.
  • the total content is more preferably 50% by mass or less.
  • the total amount of inorganic fine powder and / or organic fine powder is preferably 50% by mass or more, preferably 80% by mass or less, more preferably 75% by mass or less, and further preferably 70% by mass or less.
  • the fine particle-containing layer is more preferably a fine particle-containing coat layer, but the fine particle-containing layer will be described later.
  • the polyolefin resin is preferably at least one of an ethylene resin and a propylene resin, and is preferably an ethylene resin and / or a propylene resin.
  • the total content is more preferably 55% by mass or more, more preferably 60% by mass or more, and even more preferably 65% by mass or more. On the other hand, the total content is more preferably 90% by mass or less.
  • the total amount of the inorganic fine powder and / or organic fine powder is preferably 10% by mass or more, preferably 45% by mass or less, more preferably 40% by mass or less, and further preferably 35% by mass or less.
  • the fine particle-containing layer is more preferably a fine particle-containing coat layer, but the fine particle-containing layer will be described later.
  • the content of the olefin resin Is preferably 60 to 90 mass%, more preferably 65 mass% or more. Further, the total content of the inorganic fine powder and / or the organic fine powder is preferably 10 to 40% by mass, and more preferably 35% by mass or less.
  • the porous base material layer preferably contains a large number of voids (pores).
  • the porosity is preferably 1% or more, more preferably 10% or more, and further preferably 20% or more from the viewpoint of opacification and weight reduction.
  • the porosity is preferably 60% or less, more preferably 55% or less, still more preferably 50% or less, and even more preferably 40% or less.
  • the porosity of the porous base material layer means the area ratio of the pores of the porous base material layer obtained by observing an arbitrary cross section of the stretched multilayer resin film with a scanning electron microscope.
  • the void is formed by stretching, and the stretching method may be uniaxial stretching or biaxial stretching.
  • the thickness of the porous base material layer is preferably 30 ⁇ m or more, and more preferably 40 ⁇ m or more. On the other hand, the thickness is preferably 150 ⁇ m or less, and more preferably 130 ⁇ m or less.
  • the solvent absorption layer is provided on one side or both sides of the porous substrate layer.
  • the solvent absorption layer absorbs a vehicle (particularly a high-boiling petroleum solvent such as mineral oil) in the offset ink at the time of offset printing. This is a layer for preventing the vehicle from reaching and suppressing swelling of the entire multilayer resin stretched film.
  • the solvent absorbing layer contains 15 to 100% by mass of a solvent absorbing resin having a solubility parameter (SP value) of 10 or less.
  • the solubility parameter (SP value) is a value calculated by the calculation method proposed by Small, where ⁇ H is the molar evaporation heat of the liquid and V is the molar volume.
  • ⁇ density (g / cm 3 )
  • Fi molar attractive force ((cal / cm 3 ) 1/2 / mol)
  • M repeating unit molecular weight (g / mol).
  • solubility parameter (SP value) is 10 or less, 30 mass% or more is more preferable.
  • the content is preferably 99% by mass or less, more preferably 80% by mass or less, and further preferably 70% by mass or less.
  • the solubility parameter (SP value) is preferably 9.5 or less, more preferably 9 or less, and even more preferably 8 or less, from the viewpoint of the absorbability of petroleum-based solvents. Further, the SP value is preferably 6.5 or more, and more preferably 7 or more.
  • the value of the solubility parameter (SP value) of the thermoplastic resin is, for example, an amorphous propylene copolymer resin (7.6), a cyclic olefin resin (7.2), a petroleum resin (7.0), polystyrene. Resin (8.6 to 9.7), polymethyl methacrylate resin (9.2), polyethylene (7.9 to 8.1), crystalline polypropylene resin (8.1), and complete crystal part of polypropylene (8 .5), polyvinyl chloride (9.6), polycarbonate (9.6 to 10), polyethylene terephthalate resin (10.7), nylon 6 (11.0) (all numbers in parentheses mean SP value) ).
  • SP value solubility parameter
  • solubility parameter (SP value) of petroleum-based solvents is, for example, n-octane ( ⁇ gasoline, 6.7), n-hexane (7.3), liquid paraffin (7.8), toluene / xylene. (8.8), ethyl acetate (9.0), and benzene (9.2) (the numerical values in parentheses mean SP values).
  • the solvent-absorbing resin contains at least one resin selected from the group consisting of amorphous propylene-based copolymer resins, cyclic olefin-based resins, petroleum resins, polystyrene resins, and polymethyl methacrylate resins. More preferably, it contains at least one resin selected from the group consisting of cyclic olefin resins, petroleum resins and polystyrene resins.
  • These solvent absorbing resins may be used alone or in a mixture of two or more.
  • solvent absorptive resin whose solubility parameter (SP value) is 8 or less is contained in total, 20 mass% or more is more preferable, and 30 mass% or more is further more preferable.
  • 99 mass% or less of solvent absorptive resin whose solubility parameter (SP value) is 8 or less is included in total, 80 mass% or less is more preferable, and 70 mass% or less is further more preferable.
  • solubility parameter (SP value) of 8 or less it is preferable to contain, for example, 1 to 85% by mass of crystalline polypropylene resin, more preferably 20% by mass or more, and further preferably 30% by mass or more.
  • the crystalline polypropylene resin is more preferably 80% by mass or less, and further preferably 70% by mass or less.
  • cyclic olefin resin examples include a ring-opening polymer derived from a cyclic olefin monomer represented by the following formula (1), a hydride of the polymer or copolymer, and a formula (1). It is preferably one selected from the group consisting of cyclic olefin monomers and ethylene addition polymers.
  • a cyclic olefin-based resin has an SP value close to the SP value of mineral oil in the ink, has high affinity with mineral oil, and easily incorporates mineral oil into the resin molecule, but is difficult to swell volume. Therefore, it is easy to suppress the solvent attack.
  • n is 0 or a positive integer
  • R 1 to R 12 each independently represents an atom or group selected from the group consisting of a hydrogen atom, a halogen atom and a hydrocarbon group
  • 9 to R 12 may be bonded to each other to form a monocyclic or polycyclic group, and the monocyclic or polycyclic group may have a double bond
  • R 9 And R 10 , or R 11 and R 12 may be taken together to form an alkylidene group.
  • Examples of such cyclic olefin monomers include, for example, Japanese Patent Application Laid-Open No. 2-227424, Japanese Patent Application Laid-Open No. 2-276842, Japanese Patent Application Laid-Open No. 5-97719, Japanese Patent Application Laid-Open No. 7-41550.
  • Known monomers disclosed in Japanese Patent Laid-Open No. 8-72210 and the like can be used.
  • cyclic olefin monomers include the following cyclic olefin monomers.
  • Nonashikuro [10.9.1.1 4,7. 1 13,20 . 1 15, 18 . 0 3,8 . 0 2,10 . 0 12, 21 . 0 14, 19] -5-pentacosenoic, Nonashikuro such as [10.9.1.1 4,7. 1 13,20 . 1 15, 18 . 0 3,8 . 0 2,10 . 0 12, 21 . 0 14,19] -5-pentacosene derivatives; Pentacyclo [8.4.0.1 2,5 . 1 9,12 . 0 8,13] -3-hexadecene, 11-methyl-penta cyclo [8.4.0.1 2,5. 1 9,12 .
  • a polymerization catalyst composed of a metal compound is used to polymerize a cyclic olefin, and a method of hydrogenating by a known method using a polymerization catalyst generally used for hydrogenating an olefin compound, etc. Can do.
  • a method for producing a random copolymer with ethylene for example, as described in Japanese Patent Application Laid-Open No. 60-168708, polymerization is performed using a catalyst comprising a vanadium compound and a halogen-containing organoaluminum compound. Etc.
  • the ethylene fraction is preferably 40 to 90%.
  • Petroleum resins include higher unsaturated hydrocarbon compounds present in high-temperature pyrolysis oil such as naphtha, for example, mainly C5 or C9 fractions of the remaining fractions from which necessary fractions are collected from the cracked oil.
  • unsaturated hydrocarbon resins obtained by polymerizing with butadiene, piperylene, isoprene, dicyclopentadiene, terpene, styrene, methylstyrene, vinyltoluene, indene, methylindene, and mixtures thereof with an acidic catalyst.
  • saturated hydrocarbon resins obtained by hydrogenating the unsaturated hydrocarbon resins.
  • Examples of the types of petroleum resins include aliphatic petroleum resins (C5 petroleum resins), aromatic petroleum resins (C9 petroleum resins), aliphatic / aromatic or aliphatic / alicyclic copolymer petroleum resins ( C5 / C9 petroleum resin), cyclopentadiene petroleum resin (DCPD petroleum resin), and hydrogenated petroleum resins obtained by hydrogenating them.
  • C5 petroleum resins aromatic petroleum resins
  • C9 petroleum resins aliphatic / aromatic or aliphatic / alicyclic copolymer petroleum resins
  • DCPD petroleum resin cyclopentadiene petroleum resin
  • hydrogenated petroleum resins obtained by hydrogenating them from the viewpoints of compatibility when used in combination with a crystalline polypropylene resin and imparting flexibility to a stretched multilayer resin film.
  • an aromatic petroleum resin obtained mainly by polymerizing a C9 fraction is further hydrogenated.
  • An alicyclic saturated hydrocarbon resin obtained by conversion into a carboxylic acid is preferable.
  • Examples of such commercially available products of alicyclic saturated hydrocarbon resins include the trade name “Arcon” manufactured by Arakawa Chemical Industry Co., Ltd., the product name “Clearon” manufactured by Yashara Chemical Co., Ltd., and the product name manufactured by Tonen General Sekiyu Co., Ltd. T-REZ ”, Idemitsu Kosan's trade name“ Imabe ”, ExxonMobil's trade name“ Opera ”, and the like.
  • Such a petroleum resin has an SP value close to the SP value of the mineral oil in the ink, and has a high affinity with the mineral oil, so that the mineral oil can be easily taken into the resin molecule, but volume swelling is difficult. It is easy to suppress solvent attack.
  • Styrene resins include polystyrene, high impact polystyrene, styrene graft-polyethylene copolymer resin, styrene graft-polypropylene copolymer resin, styrene-acrylonitrile copolymer resin, acrylonitrile-butadiene-styrene resin, styrene-butadiene resin, acrylonitrile-styrene. -Acrylic acid ester resin, methacrylic acid ester-butadiene-styrene resin and the like.
  • a rubber component in styrene has an SP value closer to that of mineral oil in the ink and is intended to increase the affinity with mineral oil and to improve compatibility when used in combination with a crystalline polypropylene resin.
  • High impact polystyrene copolymerized with styrene, styrene graft-polyethylene copolymer resin grafted with polyolefin, and styrene graft-polypropylene copolymer resin are preferred.
  • the solvent-absorbing layer may contain, for example, inorganic fine powder or organic fine powder from the viewpoint of improving opacity.
  • the solvent absorption layer preferably contains 85% by mass or less, more preferably 50% by mass or less, and preferably 3% by mass or more.
  • the same inorganic fine powder and organic fine powder as described in the above (porous substrate layer) can be preferably used.
  • the porosity of the solvent absorption layer is preferably 5% or less, more preferably 3% or less.
  • the porosity of the solvent absorbing layer refers to the area ratio of the pores of the solvent absorbing layer obtained by observing an arbitrary cross section of the stretched multilayer resin film with a scanning electron microscope. Preventing the solvent attack that occurs when the vehicle (especially high-boiling petroleum solvent such as mineral oil) in the offset ink passes through the void and reaches the porous substrate layer by setting the porosity to 5% or less. And the swelling of the entire film can be suppressed.
  • the thickness Y of the solvent absorption layer is preferably 0.5 ⁇ m or more, more preferably 1 ⁇ m or more from the viewpoint of suppressing solvent attack. Moreover, since there exists a possibility that adjustment of curl balance cannot be performed when it is excessively thick, the thickness Y is preferably 10 ⁇ m or less, and more preferably 7 ⁇ m or less.
  • the fine particle-containing layer is a layer provided on the solvent absorption layer, and is a layer for further improving the offset printability of the stretched multilayer resin film.
  • the fine particle-containing layer has a thickness X ( ⁇ m) and a thickness Y of the solvent absorption layer.
  • the ratio (X / Y) to ( ⁇ m) is 1.3-40.
  • the fine particle-containing layer sufficiently absorbs the vehicle (especially mineral oil) in the offset ink, and even if the thickness Y of the solvent absorption layer is made thinner than before, the porous substrate layer can be obtained. Solvent attack can be prevented without the vehicle reaching.
  • the ratio is preferably 1.5 or more, and more preferably 2 or more.
  • the ratio is sufficient if it is 40 or less, preferably 30 or less, more preferably 20 or less, and even more preferably 10 or less.
  • the thickness X of the fine particle-containing layer is preferably 1 ⁇ m or more from the viewpoint of ink drying property, more preferably 2 ⁇ m or more, and further preferably 4 ⁇ m or more.
  • the thickness X is preferably 20 ⁇ m or less from the viewpoint of moldability of the fine particle-containing layer, and more preferably 15 ⁇ m or less.
  • the fine particle-containing layer preferably contains a binder component and a filler (pigment).
  • binder components vinyl acetate resin, ester resin, styrene-acrylic acid resin, latex such as SBR (styrene / butadiene copolymer rubber), MBR (methacrylate / butadiene copolymer rubber), acrylic emulsion, Starch, PVA (polyvinyl alcohol), CMC (carboxymethylcellulose), methylcellulose and the like are mentioned, and preferably contains at least one resin selected from the group consisting of vinyl acetate resins, ester resins and styrene-acrylic resins.
  • the fine particle-containing layer can contain one or more resins as a binder component.
  • Examples of the filler include inorganic fine powder and organic fine powder.
  • Examples of the inorganic fine powder include heavy calcium carbonate, light calcium carbonate, magnesium carbonate, white clay, titanium white, silica, calcium silicate, barium sulfate, and calcium sulfate. , Titanium dioxide, alumina, aluminum hydroxide, calcium hydroxide, zinc hydroxide, zinc oxide, kaolin, clay, talc and the like.
  • Examples of the organic fine powder include plastic pigments such as acrylic resin particles, styrene resin particles, urea formalin resin particles, and hollow resin particles.
  • the content of the filler in the fine particle-containing layer is preferably 15 parts by mass or more with respect to 100 parts by mass of the binder component, and more preferably 25 parts by mass or more, from the viewpoint of imparting quick ink drying. Further, the content is preferably 450 parts by mass or less from the viewpoint of preventing the pigment from dropping off, and more preferably 400 parts by mass or less.
  • the fine particle-containing layer may contain an ultraviolet absorber, a dispersant, a crosslinking agent, an antistatic agent, a fluorescent brightening agent, and the like as an auxiliary agent.
  • an ultraviolet absorber e.g., an ultraviolet absorber
  • a dispersant e.g., sodium special polycarboxylate
  • a crosslinking agent e.g., polyamide urea resins.
  • the content of the auxiliary is preferably 1 to 50 parts by mass in total with respect to 100 parts by mass of the binder component.
  • the content of the dispersant is preferably 0.5 to 5 parts by mass with respect to 100 parts by mass of the binder component.
  • the production method of the multilayer resin stretched film according to the present invention is not particularly limited, and any method produced by any method is included in the scope of the present invention as long as it satisfies the requirements of the present invention. Below, the preferable manufacturing method of the multilayer resin stretched film which concerns on this invention is demonstrated.
  • the stretched multilayer resin film of the present invention melts and kneads the resin composition of the porous base material layer in advance, extrudes it into a sheet, and stretches it 4 to 7 times in the longitudinal direction by utilizing the peripheral speed difference of the roll group. .
  • the longitudinally stretched film is melt-kneaded with a resin composition that becomes a solvent absorbing layer, laminated in a sheet shape, and using a tenter in the lateral direction, the melting point of the olefin resin of the porous substrate layer
  • the film is stretched 4 to 12 times at a temperature lower by 5 to 35 ° C.
  • seat which consists of a porous base material layer and a solvent absorption layer can be manufactured by heat-processing and cooling.
  • the resin composition for the porous substrate layer and the resin composition to be the solvent absorption layer are separately melt-kneaded and coextruded into a sheet shape so that the solvent absorption layer is on the outside, Using the speed difference, the film is stretched 4 to 7 times in the machine direction at a temperature 10 ° C. or more higher than the glass transition temperature of the amorphous resin. Next, using a tenter in the transverse direction, the film is stretched 4 to 12 times at a temperature 5 to 35 ° C. lower than the melting point of the olefin resin of the porous substrate layer and 10 ° C. higher than the glass transition temperature of the amorphous resin. Then, a sheet comprising a porous substrate layer and a solvent absorbing layer can be produced by heat treatment and cooling.
  • the resin composition for the porous substrate layer and the resin composition to be the solvent absorption layer are separately melt-kneaded, and coextruded into a sheet shape so that the solvent absorption layer is on the outside, Using the difference in peripheral speed, the film is stretched 4 to 7 times in the machine direction at a temperature 10 ° C. higher than the glass transition temperature of the amorphous resin. Subsequently, the sheet
  • the multilayer resin stretched film in which the fine particle-containing coat layer is formed can be formed by forming a fine particle-containing layer on the solvent absorption layer by coating the sheet obtained above.
  • the coating agent used when the fine particle-containing layer is a fine particle-containing coat layer is a water-soluble coating agent generally having a solid content concentration of 15 to 70% by mass, and the solid content concentration is 20% by mass or more. From the point of liquid viscosity provision, 25 mass% or more is more preferable. Moreover, the solid content concentration is preferably 65% by mass or less, more preferably 60% by mass or less from the viewpoint of imparting liquid developability.
  • the filler concentration in the coating agent is preferably 30% by mass or more, more preferably 40% by mass or more from the viewpoint of liquid viscosity. Further, from the viewpoint of imparting filler dispersibility, the filler concentration is preferably 70% by mass or less, and more preferably 60% by mass or less.
  • concentration means the ratio for which an inorganic fine powder and an organic fine powder account among the solid components contained in a water-soluble coating agent.
  • a coating means such as gravure coating, Mayer bar coating, roll coating, blade coating, or size press coating is adopted. be able to.
  • the dry coating amount is generally 0.1 to 20 g / m 2 , preferably 0.5 to 15 g / m 2 .
  • a multilayer resin stretched film can be produced, for example, by the following method.
  • the resin composition for the porous base material layer is melt-kneaded in advance, extruded into a sheet shape, and stretched 4 to 7 times in the longitudinal direction by utilizing the peripheral speed difference of the roll group.
  • the resin composition for the solvent absorbing layer and the resin composition for the fine particle-containing layer are separately melt-kneaded in advance on this longitudinally stretched film, and laminated in a sheet shape so as to have a desired layer structure. Is stretched 4 to 12 times at a specific temperature using a tenter in the transverse direction.
  • a multilayer resin stretched film can be obtained by heat treatment and cooling.
  • the resin composition for the porous base material layer, the resin composition for the solvent absorption layer, and the resin composition for the fine particle-containing layer are separately melt-kneaded to obtain a sheet having a desired layer configuration.
  • the film is coextruded in the shape of a sheet and stretched 4 to 7 times in the machine direction at a specific temperature by utilizing the peripheral speed difference of the roll group. Next, it can be produced by stretching it 4 to 12 times at a specific temperature using a tenter in the transverse direction, followed by heat treatment and cooling.
  • the resin composition for the porous base material layer, the resin composition for the solvent absorption layer, and the resin composition for the fine particle-containing layer are separately melt-kneaded and shared in a sheet shape so as to have a desired layer configuration. It can also be produced by extruding, stretching 2 to 7 times in the machine direction at a specific temperature using the peripheral speed difference of the roll group, then heat-treating and cooling.
  • the back side of the multilayer resin stretched film is preferably not seen through when used as a backing for a base paper for commercial printing such as a poster or a pamphlet, a base paper for packaging paper, etc. (JIS P8149: 2000). 80% or more is preferable, the measurement is preferably 90% or more, and more preferably 95% or more.
  • the opacity is the concentration of inorganic fine powder and / or organic fine powder (filler) in each layer of the stretched multilayer resin film, stretch ratio of the stretched multilayer resin film (or porous substrate layer or solvent absorbing layer), stretching temperature, etc. Can be adjusted.
  • the whiteness (measured in accordance with JIS L1015: 1999) in the stretched multilayer resin film is preferably 80% or more, more preferably 90% or more, and 95% from the viewpoint of improving the visibility of the printed content. The above is more preferable.
  • the thickness of the stretched multilayer resin film is generally 35 to 300 ⁇ m.
  • another layer such as a propylene-based resin layer containing 8 to 55% by mass of inorganic fine powder is provided between the solvent absorption layer and the porous base material layer.
  • a layer may be further formed.
  • this other layer may contain a small amount of a propylene-based copolymer, high-density polyethylene, polystyrene, a low-melting point resin of ethylene / vinyl acetate copolymer, etc. in order to improve stretchability.
  • the multilayer resin stretched film only needs to have a solvent absorbing layer and a fine particle-containing layer in this order on at least one surface of the porous substrate layer.
  • a solvent absorbing layer and a fine particle-containing layer in this order on at least one surface of the porous substrate layer.
  • You may have the solvent absorption layer 3 and the fine particle content layer 4 in this order on the surface of both sides.
  • the surface of the fine particle-containing layer of the stretched multilayer resin film is subjected to corona discharge treatment to improve offset printability, or an ethyleneimine adduct such as polyethyleneimine, poly (ethyleneimine-urea), polyaminepolyamide, A water-soluble primer selected from the group consisting of epichlorohydrin adducts such as polyamine polyamide and tertiary or quaternary nitrogen-containing acrylic resins may be applied.
  • Example 1 Step (I) 40.0 parts by mass of the polypropylene resin (trade name: Novatec PP MA3, manufactured by Nippon Polypro Co., Ltd.) listed in Table 2, 59.5 parts by mass of heavy calcium carbonate particles (trade name: Softon 1800, manufactured by Bihoku Powdered Industries Co., Ltd.) , And 0.5 parts by mass of titanium dioxide particles (trade name: Taipei CR-60, manufactured by Ishihara Sangyo Co., Ltd.) were mixed to prepare a resin composition (1).
  • the polypropylene resin trade name: Novatec PP MA3, manufactured by Nippon Polypro Co., Ltd. listed in Table 2
  • 59.5 parts by mass of heavy calcium carbonate particles trade name: Softon 1800, manufactured by Bihoku Powdered Industries Co., Ltd.
  • titanium dioxide particles trade name: Taipei CR-60, manufactured by Ishihara Sangyo Co., Ltd.
  • Step (II) A high-frequency power source (device name: AGF-B10, manufactured by Kasuga Denki Co., Ltd.), an aluminum electrode with a length of 0.8 m, and a silicone film roll as a treater roll, the gap between the electrode and the roll is 5 mm, and obtained above.
  • the longitudinally stretched resin film was subjected to corona discharge treatment on both surfaces of the film under conditions of applied energy density of 1800 J / m 2 (30 W ⁇ min / m 2 ) while passing through the gap at a line processing speed of 25 m / min. It was.
  • Step (III) Separately from the steps (I) and (II), 100 parts by mass of a water-dispersed polyester resin (trade name: Vylonal MD-1100, manufactured by Toyobo Co., Ltd.) shown in Table 3, precipitated silica particles (trade name: NIPSEAL E- 170, manufactured by Tosoh Silica Co., Ltd.) 25 parts by weight, 0.2 part by weight of an ultraviolet absorber, 1.0 part by weight of a dispersant, and 60.0 parts by weight of distilled water (A) was prepared.
  • a water-dispersed polyester resin trade name: Vylonal MD-1100, manufactured by Toyobo Co., Ltd.
  • precipitated silica particles trade name: NIPSEAL E- 170, manufactured by Tosoh Silica Co., Ltd.
  • Coating layer (8) (thickness 8 ⁇ m) / resin composition (4) (thickness 3 ⁇ m) / resin composition (1) (thickness 278 ⁇ m) / resin composition (4) A 300 ⁇ m thick multilayer resin stretched film having a laminated structure of (thickness 3 ⁇ m) / coating agent (A) (thickness 8 ⁇ m) was obtained.
  • the ratio X / Y is 2.67.
  • coating agent (A) / resin composition (4) / resin composition (1) / resin composition (4) / coating agent (A) 10/3/325/3. / 10 (g / m 2 ).
  • Step (IV) The obtained multilayer resin stretched film was a white opaque synthetic paper having a large number of fine pores therein, and the porosity was 23%, the opacity was 96%, and the whiteness was 95%.
  • the printed film was not irregular and the ink drying property was good.
  • Example 1 when forming the longitudinally stretched resin film in the step (I), the resin composition (1) which is a porous base material layer is used without using the resin composition (4) which is a solvent absorption layer.
  • a multilayer resin stretched film of Comparative Example 1 was obtained by performing the same procedure as in Example 1 except that the single-layer sheet was changed to a single-layer sheet and the thickness of the single-layer sheet was changed to 284 ⁇ m.
  • the obtained multilayer resin stretched film was subjected to oil-based offset printing under the printing conditions described later, large irregularities were generated on the film due to the solvent attack by the printing ink.
  • it is coating agent (A) / resin composition (1) / coating agent (A) 10/332/10 (g / m 2 ).
  • Example 2 In Example 1, the discharge amount of the resin composition (4) when forming the longitudinally stretched resin film in the step (I), and the water-soluble coating agent when forming the fine particle-containing coat layer in the step (III) Other than changing the coating amount of (A), changing the thickness X of the fine particle-containing coating layer (coating agent (A)) to 5 ⁇ m, and changing the thickness Y of the solvent absorption layer (resin composition (4)) to 6 ⁇ m. Performed the procedure similar to Example 1, and obtained the multilayer resin stretched film of the comparative example 2. FIG. The ratio X / Y between the thickness X of the fine particle-containing coat layer and the thickness Y of the solvent absorption layer is 0.83.
  • coating agent (A) / resin composition (4) / resin composition (1) / resin composition (4) / coating agent (A) 6/6/325/6. / 6 (g / m 2 ).
  • Step (I) 80.0 parts by mass of the polypropylene resin (trade name: Novatec PP MA3, manufactured by Nippon Polypro Co., Ltd.) listed in Table 2, 19.5 parts by mass of heavy calcium carbonate particles (trade name: Softon 1800, manufactured by Bihoku Powdered Industries Co., Ltd.) And 0.5 parts by mass of titanium dioxide particles (trade name: Taipei CR-60, manufactured by Ishihara Sangyo Co., Ltd.) were mixed to prepare a resin composition (2).
  • the polypropylene resin trade name: Novatec PP MA3, manufactured by Nippon Polypro Co., Ltd. listed in Table 2
  • 19.5 parts by mass of heavy calcium carbonate particles trade name: Softon 1800, manufactured by Bihoku Powdered Industries Co., Ltd.
  • titanium dioxide particles trade name: Taipei CR-60, manufactured by Ishihara Sangyo Co., Ltd.
  • polypropylene resin (trade name: Novatec PP FL4, manufactured by Nippon Polypro Co., Ltd.) 40.0 parts by mass, petroleum resin (trade name: Alcon P-140, manufactured by Arakawa Chemical Industries) listed in Table 2
  • a resin composition (5) was prepared by mixing 0 parts by mass and 45.0 parts by mass of heavy calcium carbonate particles (trade name: Softon 1800, manufactured by Bihoku Flour Industry Co., Ltd.).
  • the resin composition (2) and the resin composition (5) are respectively melt-kneaded by separate extruders set at 270 ° C., and the resin composition (5) is formed on the surfaces on both sides of the resin composition (2) inside the die.
  • Step (II) The longitudinally stretched resin film obtained in step (I) was cooled to 60 ° C., reheated to 150 ° C., stretched 9 times in the sheet width direction using a tenter, and then annealed at 165 ° C. Then, after cooling to 60 degreeC again, the ear
  • edge part was slit and both the porous base material layer and the solvent absorption layer were biaxially stretched, thickness 114 micrometers (resin composition (5) / resin composition ( 2) / Resin composition (5) 3 ⁇ m / 108 ⁇ m / 3 ⁇ m) A biaxially stretched resin film having a three-layer structure was obtained.
  • Step (III) A high-frequency power source (device name: AGF-B10, manufactured by Kasuga Denki Co., Ltd.), an aluminum electrode with a length of 0.8 m, and a silicone film roll as a treater roll, the gap between the electrode and the roll is 5 mm, and obtained above.
  • the biaxially stretched resin film was subjected to corona discharge treatment on both surfaces of the film under conditions of an applied energy density of 1800 J / m 2 (30 W ⁇ min / m 2 ) while passing between the gaps at a line processing speed of 25 m / min. went.
  • Step (IV) Separately from the steps (I) to (III), 100 parts by mass of an ethylene-vinyl acetate copolymer resin emulsion (trade name: Sumikaflex 456HQ, manufactured by Sumitomo Chemical Co., Ltd.) shown in Table 3 and precipitated silica particles (trade name) : Nip seal E-170, manufactured by Tosoh Silica Co., Ltd.) 45 parts by mass, UV absorbent 0.2 parts by mass, dispersant 1.0 part by mass, and distilled water 105.0 parts by mass Agent (B) was prepared.
  • an ethylene-vinyl acetate copolymer resin emulsion trade name: Sumikaflex 456HQ, manufactured by Sumitomo Chemical Co., Ltd.
  • precipitated silica particles trade name: Nip seal E-170, manufactured by Tosoh Silica Co., Ltd.
  • the ratio X / Y is 2.67.
  • coating agent (B) / resin composition (5) / resin composition (2) / resin composition (5) / coating agent (B) 10/3/83/3. / 10 (g / m 2 ).
  • the obtained multilayer resin stretched film was a white opaque synthetic paper having a large number of fine pores therein, and the porosity was 33%, the opacity was 97%, and the whiteness was 97%.
  • the printed film was not irregular and the ink drying property was good.
  • Example 3 Step (I) 80.0 parts by mass of a polyethylene resin (trade name: Novatec HD HJ360, manufactured by Nippon Polyethylene Co., Ltd.) listed in Table 2; And 0.5 parts by mass of titanium dioxide particles (trade name: Taipei CR-60, manufactured by Ishihara Sangyo Co., Ltd.) were mixed to prepare a resin composition (3). Separately, 48.5 parts by mass of the polypropylene resin (trade name: Novatec PP FL4, manufactured by Nippon Polypro Co., Ltd.) and 48.5 parts by mass of polystyrene resin (trade name: HIPS 475D, manufactured by PS Japan) listed in Table 2.
  • a polyethylene resin trade name: Novatec HD HJ360, manufactured by Nippon Polyethylene Co., Ltd.
  • titanium dioxide particles trade name: Taipei CR-60, manufactured by Ishihara Sangyo Co., Ltd.
  • a heavy calcium carbonate particle (trade name: Softon 1800, manufactured by Bihoku Flour Industry Co., Ltd.) 3.0 parts by mass were prepared.
  • the resin composition (3) and the resin composition (6) are each melt-kneaded by separate extruders set at 230 ° C., and the resin composition (6) is formed on both surfaces of the resin composition (3) inside the die. So as to have a structure ⁇ solvent absorption layer (resin composition (6)) / porous substrate layer (resin composition (3)) / solvent absorption layer (resin composition (6)) ⁇ . Co-extruded from a die, and this laminated sheet was cooled by a cooling roll to obtain an unstretched sheet. Next, the non-stretched sheet was heated again to 130 ° C., and then stretched 4.8 times in the sheet flow direction using a speed difference between rolls to obtain a longitudinally stretched resin film.
  • Step (II) The longitudinally stretched resin film obtained in step (I) was cooled to 60 ° C., reheated to 130 ° C., stretched 9 times in the sheet width direction using a tenter, and then annealed at 140 ° C. Then, after cooling to 60 degreeC again, the ear
  • edge part was slit and both the porous base material layer and the solvent absorption layer were biaxially stretched, thickness 114 micrometers (resin composition (6) / resin composition ( 3) / Resin composition (6) 3 ⁇ m / 108 ⁇ m / 3 ⁇ m) A biaxially stretched resin film having a three-layer structure was obtained.
  • Step (III) A high-frequency power source (device name: AGF-B10, manufactured by Kasuga Denki Co., Ltd.), an aluminum electrode with a length of 0.8 m, and a silicone film roll as a treater roll, the gap between the electrode and the roll is 5 mm, and obtained above.
  • the biaxially stretched resin film was subjected to corona discharge treatment on both surfaces of the film under conditions of an applied energy density of 1800 J / m 2 (30 W ⁇ min / m 2 ) while passing between the gaps at a line processing speed of 25 m / min. went.
  • Step (IV) Separately from the steps (I) to (III), 100 parts by mass of a styrene-butyl acrylate copolymer aqueous dispersion (trade name: Acronal S305D, manufactured by BASF) listed in Table 3, precipitated silica particles (product) Name: Nipseal E-170, manufactured by Tosoh Silica Co., Ltd.) 25 parts by mass, UV absorber 0.2 parts by mass, dispersant 1.0 part by mass, and distilled water 60.0 parts by mass A working agent (C) was prepared.
  • the ratio X / Y is 2.67.
  • coating agent (C) / resin composition (6) / resin composition (3) / resin composition (6) / coating agent (C) 10/3/83/3. / 10 (g / m 2 ).
  • the obtained multilayer resin stretched film was a white opaque synthetic paper having a large number of fine pores therein, and the porosity was 33%, the opacity was 97%, and the whiteness was 97%.
  • the printed film was not irregular and the ink drying property was good.
  • the total thickness ( ⁇ m) of the stretched multilayer resin film is based on JIS K7130: 1999 “Plastic-Film and Sheet-Thickness Measurement Method”, using a constant pressure thickness measuring instrument (device name: PG-01J, manufactured by Teclock Corporation). And measured.
  • the thickness X ( ⁇ m) of the fine particle-containing layer, the thickness Y ( ⁇ m) of the solvent absorption layer, and the thickness ( ⁇ m) of the porous substrate layer in the stretched multilayer resin film are as follows.
  • the porosity of the porous base material layer is determined based on the porosity in a certain region of the porous base material layer (or fine particle-containing layer) in an arbitrary cross section of the stretched multilayer resin film observed with an electron microscope. It can obtain
  • Gold or gold-palladium is vapor-deposited on the observation surface, and the cut surface of the multilayer resin stretched film is observed and observed at an arbitrary magnification that is easy to observe with a scanning electron microscope (for example, magnification of 500 to 3000 times).
  • the captured area is captured as image data.
  • the obtained image data is subjected to image processing by an image analysis device, and the area ratio (%) of the hole portion in a certain region of the sheet is obtained and set as the porosity (%).
  • the measured value in observation of arbitrary 10 or more places can be averaged to obtain the porosity of the porous base material layer (or fine particle-containing layer).
  • Table 4 The results are shown in Table 4.
  • the opacity of the stretched multi-layer resin film is based on JIS P8149: 2000, and a black and white standard plate is applied to the back of the measurement, and the light reflectance ratio (black plate / white plate) is expressed as a percentage. Can be sought. The results are shown in Table 4.
  • the whiteness of the stretched multilayer resin film can be determined by measuring using a color meter in accordance with the method defined in JIS L1015: 1999.
  • a touch panel type color computer SM-T manufactured by Suga Test Instruments Co., Ltd. can be used. The results are shown in Table 4.
  • Oil-based offset printing 4-color offset printing machine (equipment name: Ryobi 524GX, manufactured by Ryobi MHI Graphic Technology), and oil-based offset ink (trade name: Fusion-G MK ink, indigo, red, transparent yellow DIC, Inc.) was used to perform oily offset printing on the multilayer resin stretched films obtained in the examples and comparative examples.
  • PS plate (trade name: XP-F, manufactured by Fuji Film), blanket (trade name: D-3000, manufactured by T & K TOKA), powder (trade name: Nikka Rico AS-100S, manufactured by Nikka), Dampening water (Liquid H (trade name: Astro Mark 3, manufactured by Nikken Chemical Laboratories) 1.0% and isopropyl alcohol (IPA) 5.0% added, water temperature 10 ° C.) was used.
  • the temperature in the printing room is adjusted to 20 to 25 ° C and the relative humidity is adjusted to 40 to 60%.
  • the pattern to be printed is a pattern including characters, figures, photographic images and blank areas for pre-printing.
  • a pattern including a solid image and a flat mesh image was used, the color order was ink, indigo, red, and yellow, and the printing speed was 8000 sheets / hr. 1000 sheets were continuously printed so that the transfer amount of each color was 1.5 g / m 2, and the printed matter was left in a bar-stacked state.
  • the stretched multilayer resin film according to the present invention has high whiteness and opacity, and can prevent solvent attack when used as printing paper during offset printing. Was also found to be excellent.
  • the stretched multilayer resin film according to the present invention can prevent unevenness of the film due to the vehicle in the offset ink when offset printing is performed, and further has excellent ink drying properties. For this reason, it is very useful as a material for poster paper, wrapping paper, labels, and the like.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un film de résine multicouche étiré, doté d'une excellente imprimabilité. Le film de résine multicouche étiré selon l'invention comprend séquentiellement une couche de matériau de base poreux, une couche d'absorption de solvant (présentant une épaisseur Y) et une couche contenant des particules fines (présentant une épaisseur X), dans cet ordre ; et il est configurée de sorte que : la couche de matériau de base poreux contienne de 20 à 90 % en masse d'une résine d'oléfine et de 10 à 80 % en masse au total d'une poudre fine organique et/ou d'une poudre fine inorganique ; la couche d'absorption de solvant contienne de 15 à 100 % en masse d'une résine absorbant les solvants, présentant une valeur de paramètre de solubilité (SP) de 10 ou inférieure ; et le rapport (épaisseur X)/(épaisseur Y) soit de 1,3 à 40.
PCT/JP2019/012240 2018-03-29 2019-03-22 Film de résine multicouche étiré WO2019188841A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021084970A1 (fr) * 2019-10-31 2021-05-06 株式会社ユポ・コーポレーション Papier d'impression et étiquette d'impression

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0465439A (ja) * 1990-07-04 1992-03-02 Oji Yuka Synthetic Paper Co Ltd 印刷性に優れたポリオレフィンフィルム
EP0605938A1 (fr) * 1993-01-06 1994-07-13 Cosmo Films Limited Papier synthétique et son procédé de fabrication
WO2000059722A1 (fr) * 1999-04-02 2000-10-12 Yupo Corporation Film multicouche en resine etiree
JP2002234069A (ja) * 2001-02-09 2002-08-20 Yupo Corp ボイド含有熱可塑性樹脂延伸フィルムおよびその製造方法
JP2014058139A (ja) * 2012-09-19 2014-04-03 Nan Ya Plastics Corp 印刷インキの乾燥が早く環境にやさしい二軸延伸ポリプロピレン合成紙の製造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0465439A (ja) * 1990-07-04 1992-03-02 Oji Yuka Synthetic Paper Co Ltd 印刷性に優れたポリオレフィンフィルム
EP0605938A1 (fr) * 1993-01-06 1994-07-13 Cosmo Films Limited Papier synthétique et son procédé de fabrication
WO2000059722A1 (fr) * 1999-04-02 2000-10-12 Yupo Corporation Film multicouche en resine etiree
JP2002234069A (ja) * 2001-02-09 2002-08-20 Yupo Corp ボイド含有熱可塑性樹脂延伸フィルムおよびその製造方法
JP2014058139A (ja) * 2012-09-19 2014-04-03 Nan Ya Plastics Corp 印刷インキの乾燥が早く環境にやさしい二軸延伸ポリプロピレン合成紙の製造方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021084970A1 (fr) * 2019-10-31 2021-05-06 株式会社ユポ・コーポレーション Papier d'impression et étiquette d'impression
JPWO2021084970A1 (fr) * 2019-10-31 2021-05-06
JP7123272B2 (ja) 2019-10-31 2022-08-22 株式会社ユポ・コーポレーション 記録用紙及び記録用ラベル

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