WO2017170330A1 - Film multicouche de résine à base de polypropylène, et emballage mettant en œuvre celui-ci - Google Patents

Film multicouche de résine à base de polypropylène, et emballage mettant en œuvre celui-ci Download PDF

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Publication number
WO2017170330A1
WO2017170330A1 PCT/JP2017/012259 JP2017012259W WO2017170330A1 WO 2017170330 A1 WO2017170330 A1 WO 2017170330A1 JP 2017012259 W JP2017012259 W JP 2017012259W WO 2017170330 A1 WO2017170330 A1 WO 2017170330A1
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Prior art keywords
copolymer
propylene
layer
polypropylene resin
butene
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PCT/JP2017/012259
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English (en)
Japanese (ja)
Inventor
今井　徹
山田　浩司
康一 杉森
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東洋紡株式会社
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Priority to JP2018509307A priority Critical patent/JP6984593B2/ja
Publication of WO2017170330A1 publication Critical patent/WO2017170330A1/fr

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    • 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
    • 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
    • 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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/50—Containers, packaging elements or packages, specially adapted for particular articles or materials for living organisms, articles or materials sensitive to changes of environment or atmospheric conditions, e.g. land animals, birds, fish, water plants, non-aquatic plants, flower bulbs, cut flowers or foliage

Definitions

  • the present invention relates to a polypropylene-based resin multilayer film and a package using the same, and in particular, a fresh product made of plants that require high freshness such as vegetables, fruits, and flowers by having heat sealability and anti-fogging effect.
  • the present invention relates to a polypropylene-based resin multilayer film suitable for packaging (hereinafter referred to as fruits and vegetables in the present specification) and a package using the same.
  • polypropylene resin films have been widely used in the packaging field such as food packaging and fiber packaging because they are excellent in optical properties, mechanical properties, suitability for packaging, and the like.
  • antifogging films are widely used for packaging vegetables and other fruits and vegetables.
  • a so-called pillow packaging system is adopted as an automatic packaging apparatus for fruits and vegetables, and a bag making process by heat sealing and a filling process of contents can be performed simultaneously.
  • a laminated film for packaging raw vegetables made of a film-like product is disclosed (for example, see Patent Document 1).
  • Patent Document 1 uses a propylene / ethylene / butene-1 copolymer for the heat seal layer, there is a problem in that both low-temperature sealability and seal strength are compatible.
  • the present invention has the following configuration. 1. Mainly composed of polypropylene-based resin, from the group consisting of propylene / ethylene / butene-1 copolymer, propylene / butene-1 copolymer, propylene / ethylene copolymer on one side of the base layer (A) and base layer (A).
  • the heat seal rising temperature of the seal layer (C) is 115 ° C. or more and 125 ° C.
  • the thickness of the sealing layer (C) has a range of 1.5% or more and 5% or less with respect to the entire film layer.
  • An antifogging agent is included in at least the sealing layer (C). 2.
  • the temperature of the melting point of the resin having the lowest melting point among the copolymers constituting the sealing layer (C) is in the range of 120 to 130 ° C., and the content thereof is 50 wt% or more and 85 wt% or less.
  • the copolymer having the highest melting point among the copolymers constituting the sealing layer (C) has a melting point of 130 ° C.
  • the polypropylene-based resin multilayer film according to Item. 4 The temperature of the melting point of the copolymer constituting the seal layer (C) is in the range of 120 to 140 ° C., the content of the copolymer at 120 to 130 ° C. is 50% by weight to 85% by weight, and 130 2.
  • the base layer (A) is selected from the group consisting of isotactic polypropylene, propylene / ethylene copolymer, propylene / butene-1 copolymer, propylene / ethylene / butene-1 copolymer and propylene / pentene copolymer.
  • the polypropylene resin multilayer film according to 1 above which is mainly composed of a polypropylene resin comprising at least one copolymer and contains an antifogging agent. 6). 6. A package using the polypropylene resin multilayer film according to any one of 1 to 5 above.
  • the polypropylene resin multilayer film of the present invention can be provided with a good pillow packaging property at a lower cost than before, and can also have a fusing seal property. .
  • the base layer (A) is composed of isotactic polypropylene, propylene / ethylene copolymer, propylene / butene-1 copolymer, propylene / ethylene / butene-1 copolymer, and propylene / pentene copolymer.
  • the main component is a polypropylene resin composition comprising at least one polymer selected from the group.
  • the melting point of the entire base layer is preferably 145 ° C. or higher, more preferably 150 ° C. or higher.
  • melt flow rate may be in the range of 0.1 to 100 g / 10 min, preferably 0.5 to 20 g / 10 min, and more preferably 1.0 to 10 g / 10 min.
  • an antifogging agent is added to the resin forming the base layer (A), so that the antifogging agent is produced during film production and during storage after film formation.
  • the agent sequentially moves to the surface layer (B) and the seal layer (C), and the film surface is in a state having antifogging properties. The effect can be exerted when packaging fruits and vegetables that are characterized by sustaining physiological action even after harvesting.
  • the package should be stored in a room temperature atmosphere rather than frozen storage, considering the temperature change during storage and distribution. It is preferable to select an antifogging agent that exhibits antifogging properties continuously during the course of repeated temperature changes between 5 and 30 ° C.
  • Examples of the antifogging agent added to the resin forming the base layer (A) of the polypropylene resin multilayer film of the present invention include polyhydric alcohol fatty acid esters, higher fatty acid amines, and higher fatty acid amides. Typical examples include higher fatty acid amines and amide ethylene oxide adducts.
  • the abundance of such an antifogging agent in the film is preferably 0.1 to 10% by weight, particularly 0.2 to 5% by weight in terms of all layers.
  • additives for improving quality such as slipperiness and antistatic properties
  • lubricants such as wax and metal soap for improving productivity, plasticity, as long as the effects of the present invention are not impaired.
  • heat stabilizers, antioxidants, antistatic agents, ultraviolet absorbers and the like that are usually added to additives, processing aids, and polypropylene films.
  • the surface layer (B) is composed of at least one copolymer selected from the group consisting of propylene / ethylene / butene-1 copolymer, propylene / butene-1 copolymer and propylene / ethylene copolymer.
  • the main component is a polypropylene resin composed of a coalescence
  • the heat seal rising temperature is 130 ° C. or higher and 140 ° C. or lower.
  • the heat seal rising temperature of the surface layer (B) is the heat seal when the surfaces of the surface layer (B) of the film of the present invention face each other and the heat seal pressure is 1 kg / cm 2 and the time is 1 second. It is the temperature at which the strength is 1 N / 15 mm.
  • the heat seal rising temperature of the surface layer (B) is 130 ° C. or higher, the surface layer (B) is not easily fused to the seal bar during the heat sealing of the pillow packaging, and it is easy to make a bag.
  • the temperature is 140 ° C. or lower, the back-pasted part is easy to fuse with the package exterior part at the time of pillow packaging, and the appearance is good.
  • the thickness of the surface layer (B) is preferably in the range of 1 to 10% with respect to the entire film layer. When it is 10% or less, the fused resin portion called a poly pool at the time of fusing sealing does not become too large, and the fusing seal strength is further improved. When it is 1% or more, the function as a surface layer is easily exhibited.
  • the surface of the surface layer (B) preferably has antifogging properties. When packaging fruits and vegetables and displaying them at supermarkets, it will look better if the surface becomes cloudy due to condensation.
  • additives for improving quality such as slipperiness and antistatic properties
  • lubricants such as wax and metal soap for improving productivity, plasticity, as long as the effects of the present invention are not impaired.
  • heat stabilizers, antioxidants, antistatic agents, ultraviolet absorbers and the like that are usually added to additives, processing aids, and polypropylene films.
  • inorganic or organic fine particles to ensure the blocking resistance and slipperiness of the film.
  • inorganic fine particles examples include silicon dioxide, calcium carbonate, titanium dioxide, talc, kaolin, mica, zeolite, etc., and these shapes are not limited to spherical, elliptical, conical, indeterminate, and types,
  • the desired particle size can be used and blended depending on the purpose and usage of the film.
  • organic fine particles crosslinked particles such as acrylic, methyl acrylate, styrene-butadiene can be used, and various shapes and sizes can be used in the same manner as the inorganic fine particles. Is possible.
  • various surface treatments can be applied to the surface of these inorganic or organic fine particles, and these can be used alone or in combination of two or more. The above also applies to the seal layer (C) described later.
  • the seal layer (C) is at least one copolymer selected from the group consisting of propylene / ethylene / butene-1 copolymer, propylene / butene-1 copolymer and propylene / ethylene copolymer.
  • the heat seal rising temperature of the sealing layer (C) must be 115 ° C. or higher and 125 ° C. or lower, mainly composed of a polypropylene resin composed of coalescence.
  • the heat seal rising temperature of the surface layer (C) is the heat seal when the surfaces of the surface layer (C) of the film of the present invention face each other and heat seal pressure is 1 kg / cm 2 and the time is 1 second.
  • the temperature at which the strength is 1 N / 15 mm.
  • the heat seal rising temperature of the seal layer (C) is 125 ° C. or less, even if the heat seal temperature is low, sufficient strength can be maintained and heat seal can be performed.
  • the sealing part is excellent in sealing performance, and therefore, the freshness of the fresh product is maintained in combination with the anti-fogging property, the appearance of the contents is good, and the handling property of the package is excellent.
  • the heat seal rising temperature of the sealing layer (C) exceeds 125 ° C., the melting point difference from the base layer (A) mainly composed of polypropylene resin is reduced, and the operation speed of automatic packaging cannot be sufficiently increased.
  • the entire laminated film contracts during heat sealing, which in turn causes wrinkles in the heat seal portion and causes poor sealing of the heat seal portion.
  • the heat seal rising temperature of the sealing layer (C) is less than 115 ° C, the melting point difference from the base layer (A) becomes too large, resulting in delamination, and sufficient sealing strength cannot be secured for automatic packaging. It also leads to a decrease in fusing seal strength.
  • a combination of propylene / ethylene / butene-1 copolymer and propylene / butene-1 copolymer is preferable.
  • the heat seal arrival strength of the sealing layer (C) needs to be 3.0 N / 15 mm or more. If it is less than 3.0N / 15mm, it is inadequate to prevent the contents from falling off as an automatic package.
  • the melting point of the resin having the lowest melting point among the propylene / ethylene / butene-1 copolymer, propylene / butene-1 copolymer and propylene / ethylene copolymer constituting the seal layer (C) is 120 to It is preferable that the resin having the lowest melting point in the range of 130 ° C. is added in the range of 50% by weight to 85% by weight. When the amount is 85% by weight or less, the interlayer strength with the base layer (A) increases, so that the seal strength is sufficient. When the amount is 50% by weight or more, the seal strength at a low temperature is sufficient.
  • a propylene-butene copolymer having a low melting point is added to the seal layer resin in order to develop a low temperature seal strength.
  • the propylene-butene copolymer contains a large amount of butene and ethylene components, The compatibility with the homopolypropylene resin is poor, and interfacial peeling occurs. Further, since the thickness of the seal layer is increased, the tendency is increased, and the seal strength of the original resin cannot be expressed.
  • the melting point of the resin having the highest melting point among the propylene / ethylene / butene-1 copolymer, propylene / butene-1 copolymer and propylene / ethylene copolymer constituting the seal layer (C) is preferably 130 ° C. As mentioned above, it is 140 degrees C or less, and it is preferable that the content is 15 to 50 weight%. More preferably, it is 130 degreeC or more and 135 degreeC or less. When the temperature is 140 ° C. or lower, the heat seal strength at a low temperature is sufficient, and the reliability as a package is increased. When the temperature is 125 ° C. or higher, the interlayer strength with the base layer (A) is increased and the seal strength is sufficient.
  • the temperature of the melting point of the copolymer constituting the seal layer (C) is in the range of 120 to 140 ° C., and the content of the copolymer at 120 to 130 ° C. is 50 wt% or more and 85 wt% or less. More preferably, the content of the copolymer at 130 to 140 ° C. is 15% by weight or more and 50% by weight or less.
  • the temperature of the melting point of the copolymer constituting the seal layer (C) is in the range of 120 to 140 ° C., and the copolymer content at 120 to 130 ° C. is 60% by weight to 85% by weight. More preferably, the content of the copolymer at 130 to 140 ° C. is 15% by weight or more and 40% by weight or less.
  • the thickness of the sealing layer (C) needs to be in the range of 1.5 to 5% with respect to the entire film layer. If it is less than 1.5%, the heat seal strength is insufficient, and if it is thicker than 5%, the fusing seal strength is insufficient.
  • the surface of the seal layer (C) needs to have antifogging properties. As described above, this is to prevent the inside from being clouded by the physiological action of the contents when packaging fruits and vegetables and displaying or distributing them at supermarkets.
  • the film thickness of the polypropylene resin multilayer film of the present invention varies depending on its application and usage, but the polypropylene film as a packaging film is generally about 10 to 100 ⁇ m, and has mechanical strength and transparency. More preferably, the thickness is about 15 to 50 ⁇ m.
  • the polypropylene resin multilayer film of the present invention can be produced by the following method, but is not limited thereto.
  • a cooling roll method for melting polypropylene resin multilayer film
  • sequentially biaxial stretching method simultaneous biaxial
  • the stretching method include a stretching method and a tube stretching method.
  • the resin melt-extruded from the T-shaped die is cooled and solidified by a casting machine to produce a raw sheet.
  • the temperature at the time of melt lamination is preferably set in the range of 240 ° C. to 300 ° C. with reference to the melting point of the raw material resin used for each layer.
  • the casting roll temperature is preferably set between 15 ° C. and 40 ° C. for the purpose of suppressing crystallization of the resin and improving transparency.
  • the sheet is stretched in the flow direction of the sheet using the difference in speed between the stretching rolls. Considering this, it is preferable to set between 3 and 6 times.
  • the stretching temperature is also preferably set between 100 ° C. and 150 ° C. in view of stable production without unevenness of stretching.
  • both ears of the longitudinally stretched sheet are gripped by a tenter clip, and stretched while being sequentially expanded in a direction perpendicular to the flow of the sheet while being heated to a temperature suitable for stretching with hot air.
  • the transverse draw ratio is preferably set between 7 times and 10 times in consideration of thickness variation and productivity.
  • the stretching temperature is also preferably set between 130 ° C. and 180 ° C. in view of stable production without unevenness of stretching.
  • the polypropylene resin multilayer film of the present invention can be subjected to a surface treatment in order to improve printability, laminating properties and the like.
  • a surface treatment method include corona discharge treatment, plasma treatment, flame treatment, and acid treatment, and are not particularly limited. It is preferable to perform a corona discharge treatment, a plasma treatment, and a flame treatment that can be carried out continuously and can be easily carried out before the winding step of the film production process.
  • Layer thickness A polypropylene resin multilayer film capable of automatic packaging was cut into a size of 1 cm ⁇ 1 cm, embedded in a UV curable resin, and solidified by irradiation with UV for 5 minutes. Thereafter, a cross-sectional sample was prepared with a microtome and observed with a differential interference microscope, and the thicknesses of the surface layer (B) and the seal layer (C) were measured. Samples were measured at five points, and the average value was calculated.
  • Heat seal rise temperature Heat seal layers of polypropylene resin multilayer film capable of automatic packaging are stacked face to face, and heat seal pressure 1 kg / cm 2 , time using a thermal gradient tester (manufactured by Toyo Seiki Co., Ltd.) Refers to the temperature at which the heat seal strength is 1 N / 15 mm when heat sealed in 1 second, the heat seal layer surfaces of the 5 cm ⁇ 20 cm film face each other, and the temperature is set at a pitch of 5 ° C.
  • Anti-fogging property 1. Put 300 cc of warm water at 50 ° C. into a 500 cc top open container. 2. The container opening is sealed with the film with the antifogging measurement surface of the film on the inside. Leave in a cold room at 3.5 ° C. 4). The state of dew adhesion on the film surface was evaluated in five stages with the hot water in the container completely cooled to the ambient temperature.
  • Evaluation grade 1 No dew on the entire surface (attachment area 0)
  • Evaluation grade 2 Slight dew adhesion (up to 1/4 adhesion area)
  • Evaluation grade 3 Dew adhesion of about 1/2 (up to 2/4 of adhesion area)
  • Evaluation grade 4 almost dew adhesion (up to 3/4 adhesion area)
  • Evaluation grade 5 Dew adhesion on the entire surface (adhesion area 3/4 or more)
  • Example 1 Resin used The resin which comprises each layer used by the following manufacture example is as follows.
  • Base Layer (A) Resin Composition [PP-1] is 0.16 wt% glycerin monostearate (Matsumoto Yushi Seiyaku Co., Ltd., TB-123) as an antifogging agent, polyoxyethylene (2) stearyl 0.2% by weight of amine (Matsumoto Yushi Seiyaku Co., Ltd., TB-12) and 0.6% by weight of polyoxyethylene (2) stearylamine monostearate (Matsumoto Yushi Seiyaku Co., Ltd., Elex 334) were added. This was used as [PP-4] and 100% by weight was used as the base layer (A) forming resin.
  • Resin composition [PP-2] is composed of 1.5% by weight of organic polymer fine particles (CS30: Sumitomo Chemical Co., Ltd .: particle size 3.5 ⁇ m), glycerin monostearate as an antifogging agent. (Matsumoto Yushi Seiyaku Co., Ltd., TB-123) 0.45% by weight was melt-mixed at a resin temperature of 240 ° C. to form pellets. This raw material was used as [PP-5] and 100% by weight as a resin for forming the surface layer (B).
  • the base layer (A) is melt-extruded from the first extruder at a resin temperature of 280 ° C., and the surface layer (B) forming resin is heated to a resin temperature of 250 ° C. by the second extruder.
  • the sealing layer (C) forming resin is melt-extruded from the third extruder at a resin temperature of 250 ° C., and the surface layer (B) / base layer (A) / sealing layer (C) from the chill roll contact surface.
  • the metal roll heated to 130 ° C. was stretched 4.5 times in the longitudinal direction using the peripheral speed difference, and further introduced into a tenter stretching machine, and stretched 9.5 times in the transverse direction. .
  • the preheating part temperature of the tenter stretching machine was 168 ° C., and the stretching part temperature was 155 ° C.
  • the surface layer (B) was subjected to corona discharge treatment using a corona discharge treatment machine manufactured by Kasuga Electric Co., and then the seal layer (C
  • a corona discharge treatment was carried out, and a polypropylene resin multilayer film capable of being automatically packaged by winding with a film winder was obtained.
  • the final film thickness was 20 ⁇ m.
  • the obtained multilayer film satisfies the requirements of the present invention, has sufficient heat seal strength and ultimate strength at low temperatures, and achieves both automatic packaging suitability and fusing seal suitability.
  • the anti-fogging property was at a level with no problem in the packaging of fruits and vegetables. Table 1 shows the film composition and physical property results.
  • Example 2 Example 1 except that by increasing the thickness of the base layer (A), the film thickness was 30 ⁇ m, the thickness ratio of the sealing layer (C) was 2.3%, and the thickness ratio of the surface layer was 2.0%.
  • a laminated film was obtained in the same manner.
  • the resulting laminated film had both automatic packaging suitability and fusing seal suitability as in Example 1.
  • the anti-fogging property was at a level with no problem in the packaging of fruits and vegetables. Table 1 shows the film composition and physical property results.
  • Example 3 Example 1 except that by increasing the thickness of the base layer (A), the film thickness was 40 ⁇ m, the thickness ratio of the sealing layer (C) was 1.8%, and the thickness ratio of the surface layer was 1.5%.
  • a laminated film was obtained in the same manner.
  • the resulting laminated film had both automatic packaging suitability and fusing seal suitability as in Example 1.
  • the anti-fogging property was at a level with no problem in the packaging of fruits and vegetables. Table 1 shows the film composition and physical property results.
  • Example 4 A laminated film was obtained in the same manner as in Example 3 except that the thickness ratio of the sealing layer (C) was 3.0% and the thickness ratio of the surface layer was 1.5%.
  • the resulting laminated film had both automatic packaging suitability and fusing seal suitability as in Example 1.
  • the anti-fogging property was at a level with no problem in the packaging of fruits and vegetables. Table 1 shows the film composition and physical property results.
  • Example 5 A laminated film was obtained in the same manner as in Example 1 except that the amount of [PP-3] added to the sealing layer (C) was 70% by weight.
  • the resulting laminated film had both automatic packaging suitability and fusing seal suitability as in Example 1.
  • the anti-fogging property was at a level with no problem in the packaging of fruits and vegetables. Table 1 shows the film composition and physical property results.
  • Example 6 A laminated film was obtained in the same manner as in Example 1 except that the amount of [PP-3] added to the sealing layer (C) was 50% by weight.
  • the resulting laminated film had both automatic packaging suitability and fusing seal suitability as in Example 1.
  • the anti-fogging property was at a level with no problem in the packaging of fruits and vegetables. Table 1 shows the film composition and physical property results.
  • Example 1 A laminated film was obtained in the same manner as in Example 1 except that the thickness ratio of the sealing layer (C) was 10%. The obtained laminated film was inferior to the fusing and sealing properties. Table 2 shows the film composition and physical property results.
  • Example 3 A laminated film was obtained in the same manner as in Example 1 except that the amount of [PP-3] added to the sealing layer (C) was 40% by weight.
  • the obtained laminated film had a high seal rising temperature and was poor in automatic packaging suitability.
  • Table 2 shows the film composition and physical property results.
  • Example 4 A laminated film was obtained in the same manner as in Example 1 except that the amount of [PP-3] added to the seal layer (C) was 100% by weight. The obtained laminated film was inferior to the fusing sealability. Table 2 shows the film composition and physical property results.
  • Example 5 A laminated film was obtained in the same manner as in Example 1 except that the addition of [PP-2] in the sealing layer (C) was changed to [PP-4].
  • the obtained laminated film had a high seal rising temperature and was poor in automatic packaging suitability.
  • Table 2 shows the film composition and physical property results.
  • Example 6 A laminated film was obtained in the same manner as in Example 1 except that the thickness ratio of the seal layer (C) was changed to 6.0% and the thickness ratio of the surface layer was changed to 3.0%.
  • the obtained laminated film had a low seal arrival strength, a high rise temperature, and was inferior in automatic packaging. Furthermore, it became inferior also to the fusing sealing property.
  • Table 2 shows the film composition and physical property results.
  • the polypropylene-based multilayer resin film that can be automatically packaged according to the present invention can provide a good pillow packaging property at a lower cost than before by optimizing the seal thickness and composition, and also has a fusing seal property. It has become possible. Moreover, since it has anti-fogging property, it is particularly suitable for packaging of fruits and vegetables.

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Abstract

L'invention fournit un film multicouche de résine à base de polypropylène qui concilie en raison de sa résistance élevée au thermoscellage, une aptitude satisfaisante à l'emballage automatique et des propriétés de scellement par fusion, et qui permet ainsi de correspondre à un large domaine de l'emballage. Ce film multicouche de résine à base de polypropylène possède : une couche de base (A) principalement constituée d'une résine à base de polypropylène; et une couche de surface (B) qui se trouve sur une des faces de la couche de base (A), et qui est principalement constituée d'une composition de résine à base de polypropylène constituée d'au moins une sorte de copolymère choisie dans un groupe constitué d'un copolymère propylène-éthylène-butène-1, d'un copolymère propylène-butène-1 et d'un copolymère propylène-éthylène. En outre, ce film multicouche de résine à base de polypropylène possède une couche de scellement (C) qui se trouve sur une face opposée à la couche de surface (B), et qui est principalement constituée d'une composition de résine à base de polypropylène constituée d'au moins une sorte de polymère choisie dans un groupe constitué d'un copolymère propylène-éthylène-butène-1, d'un copolymère propylène-butène-1 et d'un copolymère propylène-éthylène.
PCT/JP2017/012259 2016-03-30 2017-03-27 Film multicouche de résine à base de polypropylène, et emballage mettant en œuvre celui-ci WO2017170330A1 (fr)

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JP2018509307A JP6984593B2 (ja) 2016-03-30 2017-03-27 ポリプロピレン系樹脂多層フィルム及びそれを用いた包装体

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Cited By (9)

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WO2018181011A1 (fr) * 2017-03-28 2018-10-04 東洋紡株式会社 Film de résine de polypropylène à orientation biaxiale
JP2019166715A (ja) * 2018-03-23 2019-10-03 グンゼ株式会社 ポリプロピレン系延伸フィルム
JP2019166830A (ja) * 2018-03-23 2019-10-03 東洋紡株式会社 二軸配向ポリプロピレン系樹脂フィルム及びそれを用いた包装体
JP2019166716A (ja) * 2018-03-23 2019-10-03 グンゼ株式会社 良好な剥離性が得られるポリプロピレン系延伸フィルム
JP2020007443A (ja) * 2018-07-06 2020-01-16 三井化学東セロ株式会社 食品用包装フィルムおよび食品用包装体
WO2020158474A1 (fr) * 2019-01-29 2020-08-06 東洋紡株式会社 Film multicouche de résine de polypropylène
WO2021005893A1 (fr) 2019-07-10 2021-01-14 東洋紡株式会社 Film de résine de polypropylène à orientation biaxiale et emballage mettant en œuvre un tel film
KR20230112116A (ko) 2020-12-04 2023-07-26 도요보 가부시키가이샤 2축 배향 폴리프로필렌계 수지 필름 및 그것을 사용한 포장체
KR20230117111A (ko) 2020-12-04 2023-08-07 도요보 가부시키가이샤 2축 배향 폴리프로필렌계 수지 필름 및 그것을 사용한 포장체

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WO2018181011A1 (fr) * 2017-03-28 2018-10-04 東洋紡株式会社 Film de résine de polypropylène à orientation biaxiale
JP7018794B2 (ja) 2018-03-23 2022-02-14 グンゼ株式会社 良好な剥離性が得られるポリプロピレン系延伸フィルム
JP2019166715A (ja) * 2018-03-23 2019-10-03 グンゼ株式会社 ポリプロピレン系延伸フィルム
JP2019166830A (ja) * 2018-03-23 2019-10-03 東洋紡株式会社 二軸配向ポリプロピレン系樹脂フィルム及びそれを用いた包装体
JP2019166716A (ja) * 2018-03-23 2019-10-03 グンゼ株式会社 良好な剥離性が得られるポリプロピレン系延伸フィルム
JP7413652B2 (ja) 2018-03-23 2024-01-16 東洋紡株式会社 二軸配向ポリプロピレン系樹脂フィルム及びそれを用いた包装体
JP7018793B2 (ja) 2018-03-23 2022-02-14 グンゼ株式会社 ポリプロピレン系延伸フィルム
JP2020007443A (ja) * 2018-07-06 2020-01-16 三井化学東セロ株式会社 食品用包装フィルムおよび食品用包装体
JP7321682B2 (ja) 2018-07-06 2023-08-07 三井化学東セロ株式会社 食品用包装フィルムおよび食品用包装体
KR20210121083A (ko) 2019-01-29 2021-10-07 도요보 가부시키가이샤 폴리프로필렌계 수지 다층 필름
JPWO2020158474A1 (ja) * 2019-01-29 2021-12-02 東洋紡株式会社 ポリプロピレン系樹脂多層フィルム
CN113365824A (zh) * 2019-01-29 2021-09-07 东洋纺株式会社 聚丙烯系树脂多层膜
JP7416137B2 (ja) 2019-01-29 2024-01-17 東洋紡株式会社 ポリプロピレン系樹脂多層フィルム
WO2020158474A1 (fr) * 2019-01-29 2020-08-06 東洋紡株式会社 Film multicouche de résine de polypropylène
JP7114838B2 (ja) 2019-01-29 2022-08-09 東洋紡株式会社 ポリプロピレン系樹脂多層フィルム
JP2022163042A (ja) * 2019-01-29 2022-10-25 東洋紡株式会社 ポリプロピレン系樹脂多層フィルム
JP2022165979A (ja) * 2019-01-29 2022-11-01 東洋紡株式会社 ポリプロピレン系樹脂多層フィルム
JP7306539B2 (ja) 2019-01-29 2023-07-11 東洋紡株式会社 ポリプロピレン系樹脂多層フィルム
CN114096416A (zh) * 2019-07-10 2022-02-25 东洋纺株式会社 双轴取向聚丙烯系树脂膜及使用了其的包装体
CN114096416B (zh) * 2019-07-10 2024-01-02 东洋纺株式会社 双轴取向聚丙烯系树脂膜及使用了其的包装体
KR20220032061A (ko) 2019-07-10 2022-03-15 도요보 가부시키가이샤 2축 배향 폴리프로필렌계 수지 필름 및 그것을 이용한 포장체
WO2021005893A1 (fr) 2019-07-10 2021-01-14 東洋紡株式会社 Film de résine de polypropylène à orientation biaxiale et emballage mettant en œuvre un tel film
KR20230117111A (ko) 2020-12-04 2023-08-07 도요보 가부시키가이샤 2축 배향 폴리프로필렌계 수지 필름 및 그것을 사용한 포장체
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