WO2021234914A1 - Film pour emballer un produit solide, et sac d'emballage - Google Patents

Film pour emballer un produit solide, et sac d'emballage Download PDF

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Publication number
WO2021234914A1
WO2021234914A1 PCT/JP2020/020135 JP2020020135W WO2021234914A1 WO 2021234914 A1 WO2021234914 A1 WO 2021234914A1 JP 2020020135 W JP2020020135 W JP 2020020135W WO 2021234914 A1 WO2021234914 A1 WO 2021234914A1
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WIPO (PCT)
Prior art keywords
solid product
film
solid
packaging
rough surface
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PCT/JP2020/020135
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English (en)
Japanese (ja)
Inventor
浩介 植田
諭男 木村
正毅 青谷
隆司 大貫
卓生 村上
沙耶 杉岡
洋介 阿久津
隆幸 石原
力 岩崎
啓佑 丹生
晋也 清藤
Original Assignee
東洋製罐グループホールディングス株式会社
東洋製罐株式会社
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Application filed by 東洋製罐グループホールディングス株式会社, 東洋製罐株式会社 filed Critical 東洋製罐グループホールディングス株式会社
Priority to PCT/JP2020/020135 priority Critical patent/WO2021234914A1/fr
Publication of WO2021234914A1 publication Critical patent/WO2021234914A1/fr

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    • 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
    • B65D65/02—Wrappers or flexible covers

Definitions

  • the present invention relates to a solid product packaging film used for packaging a solid product composed of a large number of granules or lumps, and a packaging bag containing the solid product.
  • plastic In general, plastic is easier to mold than glass, metal, etc., and can be easily molded into various shapes, so it is used for various purposes.
  • the field of packaging containers such as bag-shaped containers (pouches) and bottles is a typical field of plastic applications.
  • Patent Document 1 discloses a packaging container in which a non-woven fabric is laminated on the surface.
  • This container is used to store water-containing viscous substances such as miso and butter, and when the contents come into contact with the inner surface of the container (non-woven film), the water content of the contents permeates into the non-woven film due to capillarity.
  • a water film in which gas is mixed is formed, and the oil repellency exhibited by this water film allows the contents to be quickly discharged.
  • Patent Document 2 discloses a heat-sealing film in which an inorganic binder layer and a water-repellent coating layer are formed in this order on a heat-sealing resin layer.
  • spherical particles having an average particle diameter of 10 ⁇ m to 50 ⁇ m are exposed on the surface of the heat-sealing resin layer to form surface irregularities, and the inorganic binder layer formed on the surface irregularities is formed.
  • oxide fine particles having an average primary particle diameter of 5 nm to 1 nm are dispersed, and a water-repellent coat layer is formed by subjecting the surface of such an inorganic binder layer to a water-repellent treatment.
  • This film is applied to packaging materials containing liquids such as yogurt, jelly, pudding, syrup, porridge, soup, semi-solid or gel-like substances. That is, the water-repellent coat layer formed on the surface of this film is formed by a silane coupling agent having a hydrophobic functional group such as a methyl group, and spherical particles are formed on the surface of the water-repellent coat layer.
  • the fractal-like uneven surface is formed by the fine particle dispersion, and the water repellency of the water-repellent coat layer and the water repellency of the fractal-like unevenness exhibit excellent take-out property for the substance to be packaged.
  • the plastic molded body disclosed in Patent Document 3 has a reentrant structure surface formed by an array of enlarged pillars, and the reentrant structure surface has a liquid-repellent surface in which fluorine atoms are distributed. It has become.
  • This plastic molding is particularly applied to containers that contain viscous fluids such as curry.
  • Patent Documents 1 to 3 an uneven structure is formed on a surface in contact with the contents, and further, a fluorine compound, a silicone compound, or the like is used to chemically impart liquid repellency.
  • each solid product is an aggregate of a large number of granules or lumps that behave independently, and as compared with the above-mentioned viscous fluid, it can be rapidly discharged even in a usual known packaging container. This is because it can be said that there is no request for improving the dischargeability or reducing the residual amount of adhesion in the container.
  • wet solid products are bundled with other products and stored, and if they are partitioned and stored by a member such as a film, the wet solid product will adhere to the member. There is also a problem. However, since the amount of adhesion is not so large and it can be taken out by scraping with chopsticks or the like, its dischargeability has hardly been examined.
  • the present inventors have increased the amount of adhesion when the surface of the container in which the solid products come into contact is a rough surface having an uneven structure. We have found that it can be reduced, and have completed the present invention.
  • a solid product packaging film used for packaging a solid product composed of a large number of granules or lumps that behave independently of each other is provided.
  • a film for packaging a solid product characterized in that the surface with which the solid product comes into contact is a rough surface having an uneven structure.
  • the arithmetic average roughness Ra of the rough surface is larger than 3 ⁇ m.
  • the rough surface is formed of a thermoplastic resin.
  • the convex portions are arranged in a grid pattern, a parallel linear pattern, or a dot pattern.
  • a packaging bag obtained by making the above film into a bag and containing the solid product.
  • the solid product is food.
  • the 50% diameter L 50 of the side cross-sectional major axis L of the solid product measured by placing the granules or lumps constituting the solid product on a flat surface so as not to overlap each other is the following formula (1).
  • D AV represents the arithmetic mean value of the distance D between a half height between the convex portion that is closest in the concavo-convex structure, Satisfy the conditions represented by.
  • the side cross-sectional major axis 50% diameter L 50 of the solid product is within the range of 30 mm or less.
  • the granules or lumps constituting the solid product are present in a wet state, and the liquid derived from the solid product is present in the recesses on the rough surface.
  • the liquid contains oil.
  • the packaging film of the present invention can effectively suppress adhesion to the film surface even when a solid product having a wet surface, for example, a granular product impregnated with a seasoning liquid or the like comes into contact with the film. That is, it can be easily wiped off from the film surface. Therefore, this packaging film is extremely useful as a packaging bag (pouch) filled with solid products, particularly edible solid products.
  • the schematic side sectional view which shows the form of the rough surface of the concavo-convex structure which the packaging film of this invention has, together with the solid product which comes into contact with this.
  • the figure for demonstrating the method of forming a rough surface The figure which photographed the appearance of the film after the adhesion evaluation about the Example and the comparative example of this invention.
  • the solid product is composed of a large number of particles or lumps (hereinafter, may be simply referred to as solid particles) that behave independently of each other, but can be sold in a bag. be. That is, natto, cooked rice, rice, etc. are not sold in bags because they are too sticky even if they are solid products. This is because it cannot be taken out of the bag.
  • the solid particles described above are each impregnated with a liquid and have a wet surface. That is, some gels and emulsions (for example, agar, tofu, yogurt, mayonnaise) have a wet surface, but their shapes are not fixed, and when a certain amount of stress is applied, the shapes change. It is not a solid product because it changes, and it is not a solid product in the present invention. Further, a paste in which solid particles are dispersed in a liquid is not a solid product in the present invention because the particles do not behave independently and the particles flow together. The present invention does not apply. Further, although the present invention can be applied to non-wet solid products, as described above, such solid products do not adhere to the film surface, and therefore, it is meaningful to apply the present invention. No.
  • solid particles that behave independently are impregnated with a liquid, and the liquid is present on the surface and is in a wet state.
  • Solid particles may originally contain many liquid components, such as flakes, and these liquid components may be distributed on the surface.
  • the degree of wetting of this surface (corresponding to the amount of liquid present on the surface) cannot be unequivocally defined, but if it is present in large quantities, this liquid is present on the surface of adjacent granules or lumps.
  • the solid particles flow together with the liquid as in the case of a paste-like substance. Therefore, the present invention cannot be applied. Therefore, the amount of liquid present on the surface of the solid particles needs to be a certain amount.
  • Such a liquid amount cannot be strictly specified because there are many types of liquids to be impregnated, but when impregnated with water, the water activity is about 0.30 to 0.99, and when impregnated with only oil.
  • the lipid content of the solid product is about 5 to 50% by mass.
  • the water activity is a parameter indicating free water contained in the food, and is a value obtained by dividing the water vapor pressure of the food by the water vapor pressure of pure water under the same conditions.
  • the solid product of the present invention a large number of the above-mentioned solid particles 7 are contained in a container, and an excessively large solid product hardly causes a problem of adhering to the film surface due to its weight. Therefore, the solid particles are placed on a plane so that the granules or the agglomerates do not overlap each other, and the diameter L of the side cross section is calculated, and the diameter L is 50% (that is, the median diameter) in the integrated distribution.
  • L 50 this value is preferably 30 mm or less.
  • the solid product to which the present invention is applied is not limited to this, but wet salmon flakes, soboro, paste, kelp, tarako, mentaiko, pickled plum, takana, tuna mayo, eel, etc.
  • Typical examples are various types of furikake, shigureni, kelp, pickled ginger, gari, pickled Fukujin, pickled shiba, and tsukudani.
  • a concavo-convex structure having a large number of convex portions (projections) 3 is formed on the surface 1 of the film of the present invention in contact with the solid product, and the space between the convex portions 3 is formed. Is a concave portion 5, whereby the surface 1 in contact with the solid product is a rough surface.
  • a large number of solid particles 7 are in contact with the surface (rough surface) 1 in contact with such a solid product, and the liquid 9 is distributed on the surface of the solid particles 7, respectively. ..
  • the convex portion 3 is formed and the surface 1 is a rough surface as described above, and such a rough surface satisfies the following condition (1).
  • a rough surface that satisfies such conditions is formed, adhesion of the solid product (solid particles 7) to the surface 1 (rough surface) is more effectively suppressed.
  • L 50 is a 50% ⁇ Chi median diameter in cumulative distribution side sectional diameter L measured on the solid particles 7
  • D AV is convex portion that is closest in the uneven structure It is an arithmetic mean value of the interval D at 1/2 height (1 / 2h) of 3.
  • conditional expression (1) has been found as a result of many experiments, but when such a conditional expression (1) is satisfied, an air layer is formed in the concave portion 5 between the convex portions 3.
  • the solid particles 7 are present on the film surface 1 (rough surface) via such an air layer.
  • the solid particles 7 due to the liquid repellency of the air layer, the solid particles 7 do not adhere to the film surface 1 and easily flow on the film surface 1, for example, in a bag formed of this film, the solid particles (solid particles). ) Is considered to be effectively suppressed from remaining in the bag.
  • the height h of the convex portion 3 is not particularly limited, but if this height h is too low, the concave portion 5 is filled with the liquid 9 when a small amount of the liquid 9 enters the concave portion 5. This will impair the formation of the air layer. Therefore, the arithmetic average roughness Ra of the convex portion 3 is preferably 3 ⁇ m or more, more preferably larger than 15 ⁇ m, and further preferably 30 ⁇ m or more. Further, in order to confirm that the recess 5 is not filled with the liquid 9 and the air layer is formed, the maximum height at the portion where the solid component of the solid product adheres on the surface once in contact with the solid product. Rz may be measured, and the value is preferably 4 ⁇ m or more, more preferably 10 ⁇ m or more, more preferably 60 ⁇ m or more, still more preferably 100 ⁇ m or more.
  • the convex portion 3 as described above may be formed in various patterns.
  • FIG. 3 shows such an arrangement pattern of the convex portions 3.
  • FIGS. 3A and 3B are patterns in which the convex portions 3 are arranged in a grid pattern by intersecting the convex portions 3 extending in parallel with each other.
  • the convex portions 3 are arranged in a grid pattern.
  • the convex portions 3 extending in parallel are orthogonal to each other to form a rectangular or square grid.
  • the convex portions 3 extending in parallel are inclined and intersect with each other to form a parallelogram-shaped or rhombic-shaped lattice.
  • the shape of such a grid is not limited to such a rectangle. For example, it may have a hexagonal shape in which the intersections of the convex portions 3 are formed thickly and the intersections are formed in a round shape.
  • the pattern of FIG. 3C is a pattern extending linearly so that the convex portions 3 do not intersect, and in such a pattern extending linearly, the shape of the line is limited to a straight line. It may be a zigzag shape in which a straight line is bent in the middle, or the line may be composed of a curved line.
  • the pattern of FIG. 3D is a pattern in which the convex portions 3 are randomly arranged in a dot shape. The shape of such dots is not limited to a circle, and may be, for example, a rectangle.
  • the form of the convex portion 3 is shown by a rectangular cross section in the example of FIG. 1, but the shape is not limited to this. Examples of such other shapes are shown in FIG.
  • a shape in which an enlarged head portion 3a is formed at the upper end portion of the convex portion 3, a cone shape, a dome shape, a spherical shape, or the like can be formed, and the shape is irregular. It may be present, or it may have a double-layered concavo-convex structure such that the surface of the convex portion 3 is further concavo-convex as typified by a fractal structure.
  • the convex portion 3 having the smallest interval is identified by microscopic observation, and the interval D at at least 10 places or more is measured at 1 / 2h by the method described in Examples described later. Then, the arithmetic mean value DAV is calculated.
  • the condition that satisfies the above formula (1) it is preferable arithmetic mean value D AV interval D between the projections 3 of the is 70 ⁇ m or more. That is, if the interval DAV is too small, the liquid 9 existing on the surface of the solid particles 7 permeates into the concave portion 5 between the convex portions 3 due to the capillary phenomenon, and the concave portion 5 is filled with the liquid 9. An air layer is not formed under the solid particles 7, and the solid particles 7 are difficult to peel off from the surface 1.
  • the concave portion 5 between the convex portions 3 When the concave portion 5 between the convex portions 3 is filled with the liquid 7, the scattering of light by the convex portion 3 is alleviated, and even if the film is opaque before coming into contact with the solid particles, it becomes transparent. ..
  • the convex portion 3 since the convex portion 3 is formed so as to satisfy the above-mentioned formula (1), the concave portion 5 between the convex portions 3 is formed even when the solid product (solid particles) is in contact with the surface 1. An air layer is secured in the air layer, and therefore, due to light scattering, the transparency is as high as before the solid product comes into contact with the solid product.
  • the film member in the present invention may be opaque, and by designing the uneven shape in advance in consideration of the wavelength of visible light in order to ensure the transparency of the film, the adhesion of solid products is suppressed and the film is transparent. It is also possible to achieve both sex.
  • the transparency here means that the shape and color of the solid product can be visually recognized through the film, and the haze value is 70% or less, and 50% or less when it is particularly excellent.
  • the film having the surface 1 in contact with the solid product having the convex portion 3 as described above is any plastic as long as it can be molded into a predetermined shape, for example, a thermoplastic resin, a thermosetting resin, or a photocurable resin. It may be formed of a resin or the like, and an appropriate resin may be selected according to the use of the molded product, and a multi-layer structure is also possible. Further, in terms of moldability, a thermoplastic resin is preferable.
  • olefin resins typified by polystyrene, polyethylene, polypropylene, ethylene or a copolymer of propylene and other olefins, a copolymer of ethylene and vinyl alcohol, polyethylene terephthalate (PET), etc.
  • PET polyethylene terephthalate
  • Typical examples are polymers such as polyethylene isophthalate and polyethylene naphthalate.
  • the concave-convex structure formed by the convex portion 3 described above can be created by various methods, and for example, a transfer method, a sandblast method, or a method using spraying of a resin fiber can be adopted.
  • a transfer method for example, a transfer method, a sandblast method, or a method using spraying of a resin fiber can be adopted.
  • the method using resin fibers or non-woven fabric has problems such as generation of fiber waste
  • the sandblasting method has problems such as contamination of the media (projection material, abrasive) used, so that it can be formed by the transfer method. desirable.
  • the molten plastic film from the extruder 41 is extruded onto a roll 43 having an uneven structure, and the surface is uneven by cooling and solidifying while pressurizing with the nip roll 45.
  • a film 47 to which the structure has been transferred is obtained.
  • a plastic film formed by injection molding, extrusion molding, or the like is preheated by a heating method known per se, and cooled while being pressurized between the roll 43 and the nip roll 45 having the uneven structure. By doing so, a film 47 having an uneven structure transferred to the surface is manufactured. Further, in FIG.
  • the plastic film is cooled while being pressed by a plurality of rolls 65 whose temperature is controlled between the belt 61 having the uneven structure on the surface and the nip belt 63.
  • a means of pressing with a mold to which the uneven structure is transferred using a hot press machine to cool the surface can also be adopted.
  • the roll 43, the mold on which the uneven structure is transferred, and the belt 61 are transferred into the uneven shape by a known dry etching method, wet etching method, photo etching method, sandblasting method, laser engraving method, cutting engraving method, or the like. It can be manufactured by forming a shape for the surface on the surface.
  • the film having the uneven structure thus obtained is formed into a container in the form of a tube, a cup, a tray, etc., or is particularly wet, such as an adhesion prevention film in a tray or a cup container, a partition member typified by a balun, or the like.
  • a container in the form of a tube, a cup, a tray, etc.
  • a partition member typified by a balun, or the like.
  • it can be applied to a member with which a solid product comes into contact, it is generally most preferably used in a bag-like form (so-called pouch) by a known means such as a heat seal.
  • the film member of the present invention can be applied to various solid products, but in particular, solid products whose surface is in a wet state due to impregnation with a liquid, for example, a viscous liquid in which saccharides are dissolved or dispersed, or a hydrous alcohol such as mirin.
  • a liquid for example, a viscous liquid in which saccharides are dissolved or dispersed, or a hydrous alcohol such as mirin.
  • a liquid for example, a viscous liquid in which saccharides are dissolved or dispersed, or a hydrous alcohol such as mirin.
  • the present invention is most effective, and especially seasoning to solid particles. It is best used as a bag-shaped container for storing foods impregnated with liquid or the like.
  • Adhesion evaluation was carried out under the following conditions in order to evaluate the adhesion amount of solid products.
  • To fix the sample film attach it to white drawing paper using double-sided tape and cut it to a size of 5 x 2 cm to prepare a sample mount.
  • 50 g of the solid product is put into a disposable cup made by AS ONE / capacity of 2000 ml, and a sample mount is embedded between the solid product and the disposable cup so that the rough surface is in contact with the solid product. Then, shake the disposable cup left and right for 20 seconds, and gently collect the sample using tweezers. At the time of collection, the sample is tilted 90 ° so as not to give impact or vibration, and the solid product is dropped from the sample mount by its own weight.
  • the roughness curve is acquired and Rsm is measured without using the cutoff value.
  • a temporary cutoff value was selected from the Rsm value.
  • the cutoff value is 0.08 mm.
  • the cutoff value is 0.25 mm.
  • the cutoff value is 0.8 mm.
  • the cutoff value is 2.5 mm.
  • the cutoff value is 8 mm.
  • Ra was calculated from the acquired roughness curve in the direction in which DAV was measured. Ra was calculated from at least two or more roughness curves, and the arithmetic mean value was taken as Ra of the sample. Incidentally, D AV as well as the height H is the measurement impossible in the case of less than 3 [mu] m.
  • the solid product was taken out on a plate, and the optical image of the particles taken with a camera or a microscope was image-analyzed to measure the cross-sectional diameter immediately.
  • the board was a single color with no stains or scratches, and a white polypropylene tray was used so that the hue of the solid product would be different.
  • the Xacti DMX-HD1010 manufactured by Sanyo Electric Co., Ltd. was used for taking the particle optical image, and the automatic area (particle count) measuring function mounted on the digital microscope VHX-6000 manufactured by Keyence Co., Ltd. was used for the image analysis.
  • the particles were moved using tweezers or the like to the extent that the particles did not collapse or deform.
  • the magnification of the camera was determined by the size of the particles, 50 to 200 particles were captured on the screen, and the ratio of the particles in the screen was about 20%.
  • the plate may be tilted by about 10 degrees or the static electricity of the plate may be removed by using an ionizer or the like.
  • the optical image of the captured particles was binarized, the contour of the particles was extracted, and the minimum diameter of the contour was measured.
  • the minimum diameter was set when the contour of the particle was sandwiched between two parallel lines so that the distance between the two parallel lines became the minimum.
  • the binarization was performed using the parameters of lightness difference, hue difference, and saturation difference.
  • the minimum diameter of the particles from the measured results was calculated a 50% diameter in cumulative distribution of the solid product, i.e. a median diameter L 50.
  • the liquid present in the recess was confirmed using the sample subjected to the discharge test, the sample before the discharge test, and the solid product.
  • FT-Raman DXR Raman Microscope manufactured by Thermo
  • the measurement point was set in the sample recess where solid solid products did not adhere.
  • the output was 10 mW and the exposure time was 10 seconds.
  • the spectrum was acquired under the condition of 20 times. Further, in order to obtain the spectrum of the liquid derived from the solid product, the target solid product was pinched with tweezers and rubbed against the slide glass to attach the liquid derived from the solid product.
  • the spectra of the sample immediately after the discharge test, the sample before the discharge test, and the liquid derived from the solid product are compared, and the sample spectra of the sample after the emission evaluation and the liquid derived from the solid product, which are not present in the sample spectrum before the discharge test, are shown. Whether or not the liquid derived from the solid product was present in the recess was determined based on the presence or absence of the existing peak. Those in which this peak was confirmed are indicated by ⁇ , and those in which this peak could not be confirmed are indicated by ⁇ .
  • Example 1 A PE (polyethylene) resin was extruded onto a chill roll having an uneven shape to prepare an embossed film having recesses formed in a square shape of 50 ⁇ m square.
  • the embossed film produced was subjected to the above-mentioned various evaluations and measurements using a wet beef sprinkle as a solid product.
  • the morphology of the rough surface of the film and the solid products used are shown in Table 1, and various measurement results are shown in Table 2. Further, a photograph of the appearance of the film after the adhesion evaluation is shown in FIG.
  • Example 2 A PE resin was extruded onto a chill roll having an uneven shape to prepare an embossed film made of PE in which the recesses were formed of an ellipse (turtle shell shape) having a major axis of 1.2 mm and a minor axis of 0.95 mm.
  • the embossed film produced was subjected to the above-mentioned various evaluations and measurements using a wet beef sprinkle as a solid product.
  • the morphology of the rough surface of the film and the solid products used are shown in Table 1, and various measurement results are shown in Table 2. Further, a photograph of the appearance of the film after the adhesion evaluation is shown in FIG.
  • Example 3 A PE resin was extruded onto a chill roll having an uneven shape to prepare an embossed film made of PE in which the convex portions were formed in a diamond shape with a major axis of 0.75 mm and a minor axis of 0.55 mm.
  • the embossed film produced was subjected to the above-mentioned various evaluations and measurements using a wet beef sprinkle as a solid product.
  • the morphology of the rough surface of the film and the solid products used are shown in Table 1, and various measurement results are shown in Table 2. Further, a photograph of the appearance of the film after the adhesion evaluation is shown in FIG. Further, a photograph of the pouch after the emission evaluation is shown in FIG.
  • Example 4 A PE resin was extruded onto a chill roll having an uneven shape to prepare an embossed film made of PE in which the recesses were formed in a diamond shape with a major axis of 4 mm and a minor axis of 2.2 mm.
  • the embossed film produced was subjected to the above-mentioned various evaluation measurements using a wet beef sprinkle as a solid product.
  • the morphology of the rough surface of the film and the solid products used are shown in Table 1, and various measurement results are shown in Table 2. Further, a photograph of the appearance of the film after the adhesion evaluation is shown in FIG.
  • Example 5 A transfer plate with irregularities given by laser processing is prepared and hot-pressed against a PE film (manufactured by Tamapoli, V-1) to create a line and space with a convex portion width of 165 ⁇ m and a concave portion width of 135 ⁇ m.
  • An uneven film made of PE was produced.
  • the above-mentioned various evaluation measurements were performed on the produced uneven film using a wet beef sprinkle as a solid product. The morphology of the rough surface of the film and the solid products used are shown in Table 1, and various measurement results are shown in Table 2. Further, a photograph of the appearance of the film after the adhesion evaluation is shown in FIG.
  • a transfer plate with irregularities is prepared by the photo edging method, and by hot pressing against PE (manufactured by Tamapoli, V-1), it is made of PE with a diameter of 200 ⁇ m, a height of 50 ⁇ m, and a pitch of 270 ⁇ m.
  • An uneven film was produced.
  • the above-mentioned various evaluation measurements were performed on the produced uneven film using a wet beef sprinkle as a solid product.
  • the morphology of the rough surface of the film and the solid products used are shown in Table 1, and various measurement results are shown in Table 2. Further, a photograph of the appearance of the film after the adhesion evaluation is shown in FIG.
  • Example 7 a PE concavo-convex film was produced in the same manner except that a wet sprinkle was used for the solid product, and the above-mentioned various evaluation measurements were performed.
  • the morphology of the rough surface of the film and the solid products used are shown in Table 1, and various measurement results are shown in Table 2. Further, a photograph of the appearance of the film after the adhesion evaluation is shown in FIG.
  • Example 8 a PE concavo-convex film was produced in the same manner except that a wet sprinkle was used for the solid product, and the above-mentioned various evaluations and measurements were performed.
  • the morphology of the rough surface of the film and the solid products used are shown in Table 1, and various measurement results are shown in Table 2. Further, a photograph of the appearance of the film after the adhesion evaluation is shown in FIG.
  • Example 9 a PE concavo-convex film was produced in the same manner except that a wet sprinkle was used for the solid product, and the above-mentioned various evaluations and measurements were performed.
  • the morphology of the rough surface of the film and the solid products used are shown in Table 1, and various measurement results are shown in Table 2. Further, a photograph of the appearance of the film after the adhesion evaluation is shown in FIG.
  • Example 10 a PE concavo-convex film was produced in the same manner except that a wet sprinkle was used for the solid product, and the above-mentioned various evaluation measurements were performed.
  • the morphology of the rough surface of the film and the solid products used are shown in Table 1, and various measurement results are shown in Table 2. Further, a photograph of the appearance of the film after the adhesion evaluation is shown in FIG.
  • Example 11 a PE concavo-convex film was produced in the same manner except that a wet sprinkle was used for the solid product, and the above-mentioned various evaluations and measurements were performed.
  • the morphology of the rough surface of the film and the solid products used are shown in Table 1, and various measurement results are shown in Table 2. Further, a photograph of the appearance of the film after the adhesion evaluation is shown in FIG.
  • Example 12 a PE concavo-convex film was prepared in the same manner except that a wet tuna mayonnaise sprinkle was used for the solid product, and the above-mentioned various evaluation measurements were performed.
  • the morphology of the rough surface of the film and the solid products used are shown in Table 1, and various measurement results are shown in Table 2. Further, a photograph of the appearance of the film after the adhesion evaluation is shown in FIG.
  • Example 13 a PE concavo-convex film was prepared in the same manner except that a wet tuna mayonnaise sprinkle was used for the solid product, and the above-mentioned various evaluation measurements were performed.
  • the morphology of the rough surface of the film and the solid products used are shown in Table 1, and various measurement results are shown in Table 2. Further, a photograph of the appearance of the film after the adhesion evaluation is shown in FIG.
  • Example 14 a PE concavo-convex film was prepared in the same manner except that a wet tuna mayonnaise sprinkle was used for the solid product, and the above-mentioned various evaluation measurements were performed.
  • the morphology of the rough surface of the film and the solid products used are shown in Table 1, and various measurement results are shown in Table 2. Further, a photograph of the appearance of the film after the adhesion evaluation is shown in FIG.
  • Example 15 a PE concavo-convex film was prepared in the same manner except that a wet tuna mayonnaise sprinkle was used for the solid product, and the above-mentioned various evaluations and measurements were performed.
  • the morphology of the rough surface of the film and the solid products used are shown in Table 1, and various measurement results are shown in Table 2. Further, a photograph of the appearance of the film after the adhesion evaluation is shown in FIG.
  • Example 16 a PE concavo-convex film was prepared in the same manner except that a wet tuna mayonnaise sprinkle was used for the solid product, and the above-mentioned various evaluations and confirmations were carried out.
  • Comparative Example 2 In Comparative Example 1, the above-mentioned various evaluations and measurements were carried out in the same manner except that a wet furikake was used for the solid product. The morphology of the rough surface of the film and the solid products used are shown in Table 1, and various measurement results are shown in Table 2. Further, a photograph of the appearance of the film after the adhesion evaluation is shown in FIG.
  • Comparative Example 3 In Comparative Example 1, the above-mentioned various evaluations and measurements were carried out in the same manner except that a wet tuna mayonnaise sprinkle was used for the solid product. The morphology of the rough surface of the film and the solid products used are shown in Table 1, and various measurement results are shown in Table 2. Further, a photograph of the appearance of the film after the adhesion evaluation is shown in FIG.
  • Example 4 ⁇ Comparative Example 4>
  • various evaluations and measurements described above were carried out in the same manner except that a wet furikake was used for the solid product.
  • the morphology of the rough surface of the film and the solid products used are shown in Table 1, and various measurement results are shown in Table 2. Further, a photograph of the appearance of the film after the adhesion evaluation is shown in FIG.
  • Example 4 the above-mentioned various evaluation measurements were carried out in the same manner except that a wet tuna mayonnaise sprinkle was used for the solid product.
  • the morphology of the rough surface of the film and the solid products used are shown in Table 1, and various measurement results are shown in Table 2. Further, a photograph of the appearance of the film after the adhesion evaluation is shown in FIG.
  • the amount of wet solid products attached can be reduced by the present invention. Further, as can be understood from FIG. 7 showing a photograph of the appearance of the pouch after the discharge evaluation, it can be seen that the pouch morphology also suppresses adhesion and enhances the discharge property.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wrappers (AREA)

Abstract

L'invention concerne un film pour emballer un produit solide, le film étant utilisé dans l'emballage d'un produit solide formé à partir de nombreux granulés ou agrégats qui se comportent indépendamment l'un de l'autre, le film étant caractérisé en ce que la surface avec laquelle le produit solide entre en contact est une surface rugueuse 1 ayant une structure en relief.
PCT/JP2020/020135 2020-05-21 2020-05-21 Film pour emballer un produit solide, et sac d'emballage WO2021234914A1 (fr)

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PCT/JP2020/020135 WO2021234914A1 (fr) 2020-05-21 2020-05-21 Film pour emballer un produit solide, et sac d'emballage

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PCT/JP2020/020135 WO2021234914A1 (fr) 2020-05-21 2020-05-21 Film pour emballer un produit solide, et sac d'emballage

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WO2021234914A1 true WO2021234914A1 (fr) 2021-11-25

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58205451A (ja) * 1982-05-26 1983-11-30 Toppan Printing Co Ltd 魚類のフレ−クの包装方法
JP3067072U (ja) * 1999-05-31 2000-03-21 株式会社北海大和 さけごまふりかけ
JP2016150769A (ja) * 2015-02-17 2016-08-22 大日本印刷株式会社 ヒートシール性樹脂フィルムおよびその製造方法、積層体、包装材料、ならびに成形ロール
JP2017200832A (ja) * 2016-05-06 2017-11-09 凸版印刷株式会社 包装材料及びその製造方法
US20180016071A1 (en) * 2015-01-29 2018-01-18 Constantia Hueck Folien Gmbh & Co. Kg Film Laminate Comprising A Sealing Layer
JP2018177274A (ja) * 2017-04-07 2018-11-15 東洋製罐グループホールディングス株式会社 撥液性を有するプラスチック成形体及びその製造方法
JP2020040694A (ja) * 2018-09-07 2020-03-19 昭和電工パッケージング株式会社 油脂含有食品用包材

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58205451A (ja) * 1982-05-26 1983-11-30 Toppan Printing Co Ltd 魚類のフレ−クの包装方法
JP3067072U (ja) * 1999-05-31 2000-03-21 株式会社北海大和 さけごまふりかけ
US20180016071A1 (en) * 2015-01-29 2018-01-18 Constantia Hueck Folien Gmbh & Co. Kg Film Laminate Comprising A Sealing Layer
JP2016150769A (ja) * 2015-02-17 2016-08-22 大日本印刷株式会社 ヒートシール性樹脂フィルムおよびその製造方法、積層体、包装材料、ならびに成形ロール
JP2017200832A (ja) * 2016-05-06 2017-11-09 凸版印刷株式会社 包装材料及びその製造方法
JP2018177274A (ja) * 2017-04-07 2018-11-15 東洋製罐グループホールディングス株式会社 撥液性を有するプラスチック成形体及びその製造方法
JP2020040694A (ja) * 2018-09-07 2020-03-19 昭和電工パッケージング株式会社 油脂含有食品用包材

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