WO2010103985A1 - Contenant en polyoléfine pour un remplissage à chaud d'un contenu non huileux - Google Patents

Contenant en polyoléfine pour un remplissage à chaud d'un contenu non huileux Download PDF

Info

Publication number
WO2010103985A1
WO2010103985A1 PCT/JP2010/053498 JP2010053498W WO2010103985A1 WO 2010103985 A1 WO2010103985 A1 WO 2010103985A1 JP 2010053498 W JP2010053498 W JP 2010053498W WO 2010103985 A1 WO2010103985 A1 WO 2010103985A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
polyolefin
layer
hot
amide
Prior art date
Application number
PCT/JP2010/053498
Other languages
English (en)
Japanese (ja)
Inventor
洋介 阿久津
淳 菊地
Original Assignee
東洋製罐株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 東洋製罐株式会社 filed Critical 東洋製罐株式会社
Priority to JP2011503783A priority Critical patent/JP5569517B2/ja
Publication of WO2010103985A1 publication Critical patent/WO2010103985A1/fr

Links

Images

Classifications

    • 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
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
    • B65D51/20—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages

Definitions

  • the present invention relates to a polyolefin container, and in particular, to a polyolefin container in which a highly viscous non-oil content such as ketchup is hot-filled.
  • Plastic containers are widely used for various applications because they are easy to mold and can be manufactured at a low cost.
  • containers in which the inner surface of a container wall is formed of a polyolefin-based resin layer such as polyethylene are viscous. It is also used as a container for containing a thick slurry-like or paste-like content.
  • the container in order to quickly discharge the viscous contents filled in the container, or to use it cleanly without remaining in the container.
  • the container is stored in an inverted state. Therefore, when the container is inverted, the contents do not remain attached to the inner wall surface of the container, and for example, a characteristic that the viscous contents quickly fall is desired.
  • Patent Document 1 uses shampoos and liquid detergents mainly composed of surfactants. It has been proposed that a multi-layer polyethylene container is blended with 4000 ppm or more of erucamide or 1 to 5% by weight of silicone oil as an anti-adhesion agent on the inner surface of the container.
  • Patent Document 2 proposes that two or more fatty acid amides are added to a resin layer made of polyolefin for a polyolefin resin bottle filled with food such as ketchup or mayonnaise.
  • the bottle is made slippery to improve the blocking resistance of the bottle, and the bottle-to-bottle contact and other parts in the bottle production line It is intended to prevent inconvenience due to contact with the container, and not to prevent the contents from adhering to the inner wall surface of the container.
  • Patent Document 3 particularly in a polyethylene container hot-filled with ketchup, an aliphatic amide, particularly an unsaturated aliphatic amide such as oleic acid amide, is blended as a lubricant in the polyethylene layer on the inner surface, It has been proposed to blend organic peroxides with these aliphatic amides.
  • the technique proposed in Patent Document 3 is related to the applicant's patent application, and this container is excellent in the inverted fall of the contents against non-oily viscous contents such as ketchup.
  • the addition of an organic peroxide together with the addition of an aliphatic amide reduces the inverted fallability of the contents when the contents are hot filled. Even when the object is hot-filled, the inverted fallability of the contents is maintained at a high level.
  • JP-A-6-99481 Japanese Patent No. 2627127 JP 2008-222291 A
  • Patent Document 3 the use of an unstable compound such as an organic peroxide is not only difficult to handle but also increases the cost. Therefore, it is desirable to avoid the use if possible.
  • a lubricant is added to the polyolefin resin layer on the inner surface of the container.
  • the contents are inverted when the contents are hot filled. It was found that the dropability could not be improved sufficiently.
  • the present applicant as a means for improving the inverted fallability of the contents even when non-oil content such as ketchup is filled in the container, the polyolefin resin layer on the inner surface of the container A saturated aliphatic amide and an unsaturated aliphatic amide as a lubricant component (Reference Application 1: Japanese Patent Application No. 2008-61208) and a high melting point aliphatic amide in the polyolefin resin layer on the inner surface, Prior to hot filling the non-oil content in the container, a means of performing heat treatment by non-contact heating (Reference Application 2: Japanese Patent Application No. 2008-234254) was proposed.
  • the above-mentioned Reference Application 1 includes a low melting point unsaturated aliphatic amide such as oleic acid amide having a high molecular thermal mobility and a high melting point saturated aliphatic amide such as stearic acid amide having a low molecular thermal mobility.
  • a lubricant component By using it as a lubricant component, a stable multi-molecular film of a lubricant component that does not collapse due to hot filling of non-oil content is formed on the inner surface of the container. It is intended to develop an excellent inverted fallability for the filled contents.
  • the inverted fallability achieved by the combined use of such unsaturated aliphatic amide and saturated aliphatic amide is not yet sufficient, and further improvement in inverted fallability is required.
  • the above-mentioned Reference Application 2 uses a high melting point saturated aliphatic amide as a lubricant component, and heat-treats the container prior to hot filling, so that it does not collapse due to hot filling of non-oil content.
  • a multi-molecular film of a lubricant component is formed on the inner surface of the container, whereby excellent inverted fallability can be obtained for the hot-filled contents. According to this means, it is possible to remarkably improve the inverted fallability for the non-oil content, but it is necessary to heat treat the container prior to hot filling of the non-oil content, Productivity is low and further improvements are needed.
  • the object of the present invention is to provide a polyolefin that can remarkably improve the inverted fallability of a hot-filled non-oil content without special treatment such as heat treatment even when the content is hot-filled.
  • the present inventors have found that a specific saturated aliphatic amide, specifically, a saturated aliphatic amide having 18 or more carbon atoms, more specifically, When behenamide is used as a lubricant in the polyolefin resin layer on the inner surface of the container, a stable multi-molecular film is formed on the inner surface of the container without performing heat treatment prior to hot filling.
  • the inventors have obtained new knowledge that the inverted fallability with respect to non-oil content can be remarkably improved, and have completed the present invention.
  • the lubricant component contained in the polyolefin resin layer is a saturated aliphatic amide, and at least 70% by weight or more of the saturated aliphatic amide is a long chain amide having a carbon number of 18 or more.
  • a polyolefin container for hot filling of oily contents is provided.
  • the polyolefin container of the present invention (1) 80% by weight or more of the saturated aliphatic amide is the long-chain amide; (2) the long chain amide is behenamide; (3) The lubricant component is contained in the polyolefin resin layer in an amount of 0.05 to 1 part by weight with respect to 100 parts by weight of the polyolefin resin. (4) The polyolefin resin is polyethylene, Is preferred.
  • thermoforming a hot-filled packaging body in which the above-mentioned polyolefin container is hot-filled with a non-oil content and sealed.
  • the non-oil content is ketchup; (6)
  • the obtained X-ray profile includes a lubricant multi-molecular layer formed on the inner surface of the container.
  • the peak derived from the structure is expressed, (7)
  • a primary peak derived from a lubricant multimolecular layer structure formed on the inner surface of the container and a secondary peak derived from the multimolecular structure are expressed, Is preferred.
  • saturated aliphatic amide is used as a lubricant component added to the polyolefin-based resin layer on the inner surface (that is, the total amount of the lubricant component is saturated aliphatic amide).
  • the use of such a lubricant component exhibits excellent inverted fallability with respect to the non-oil content that is hot-filled in this container.
  • the container filled with the non-oil content if the container filled with the non-oil content is kept in an inverted state, the non-oil content does not adhere to the inner surface of the container and quickly drops and clogs the lower container mouth. Held in a state. Therefore, even when a viscous content such as ketchup is filled, the container can be easily taken out from the mouth.
  • the use of the above-described lubricant component can prevent coloring due to the filled contents, and the transparency of the entire container is maintained, so the amount of filled contents can be reduced. The advantage of being easy to confirm is also achieved.
  • the reason why the inverted fall property with respect to the non-oil content is improved as described above is considered to be based on the following principle. That is, when an aliphatic amide is used as a lubricant component, this compound is an amphiphilic molecule having an amide group as a hydrophilic group and an aliphatic group as a hydrophobic group.
  • a lubricant component aliphatic amide
  • a multi-molecular layer of amphiphilic molecules as shown in FIG. 1 is formed with the bleeding of the lubricant component over time after the molding of the container.
  • the non-oil content slides on the outermost surface of the aliphatic amide multi-layer structure formed on the inner surface of the container.
  • the outermost surface of the multi-layer structure of the aliphatic amide is covered with a dense hydrocarbon chain, and the interaction with the contents is low, so the non-oil content falls without adhering to the container inner surface. That is why.
  • the coloring of the container by the contents is considered to be caused by the dissolution and diffusion of the pigment component from the contents to the innermost resin layer of the container.
  • the dye component in the contents passes through this layer and dissolves and diffuses into the innermost resin layer. Since the molecular layer structure is dense, it takes a very long time to leave this layer, and as a result, coloring can be prevented.
  • the saturated aliphatic amide has a high melting point and suppresses the thermal motion of the unsaturated aliphatic amide.
  • the inverted fallability is improved, but the thermal movement of unsaturated aliphatic amide is not completely suppressed, so when non-oil content is hot filled It seems that the formation of the multi-molecular layer is insufficient because the multi-molecular layer partially collapses or contains multiple components with different molecular lengths. do not do.
  • the saturated aliphatic amide is selected as the lubricant component, and more than 70% by weight of the saturated aliphatic amide is converted to a long chain amide having a carbon number of 18 so that the heat of the non-oil content is increased.
  • a multi-molecular layer can be formed stably without being affected by the inter-filling. As a result, even when the contents fall along the inner surface of the container, some lubricant molecules in the upper layer have fallen off. However, since there are regularly arranged layers underneath, it is considered that it will continue to exhibit excellent inverted fallability.
  • saturated aliphatic amide is used as a lubricant component, the thermal mobility of the molecule is low, and not only the collapse of the multi-molecular layer due to hot filling is effectively suppressed, but most of the lubricant component has a carbon number. Since it is a long-chain amide larger than 18 and has a uniform molecular length, as shown in FIG. 1, bleeding by aging after container molding does not require special heat treatment separately from hot filling. In addition to easy formation of a dense and solid multi-molecular layer, the heat history during hot filling of non-oil content rather promotes the formation of the multi-molecular layer. Transparency can be ensured.
  • the formation of the multi-molecular layer as described above is performed by X-ray diffraction measurement by a reflection method with respect to the inner surface of the container after the non-oil content is hot filled in the container and the contents are taken out. Can be confirmed by the obtained X-ray profile. That is, in this X-ray profile, a primary peak and a secondary peak derived from the lubricant multilayer structure formed on the inner surface of the container are expressed, and the primary peak is a single layer of the lubricant multilayer structure.
  • the second order peak is derived from the diffraction from the plane spacing of the minute, and the second order peak is derived from the higher order diffraction of the plane spacing for one layer of the multilayer structure, and the presence of such two peaks is It shows that the multilayer structure is stably formed.
  • the inverted fallability of the non-oil content of the polyolefin container according to the present invention is, as shown in the examples described later, by adding a lubricant component to polyolefin (for example, polyethylene) forming the inner layer, After forming a bottle by the method and hot-filling a predetermined amount of ketchup, when using the contents, take out the contents from the bottle and hold the ketchup on the inner layer of the bottle after holding it in an inverted state for a predetermined time Can be evaluated.
  • polyolefin for example, polyethylene
  • the polyolefin container of the present invention is applied to contain non-oil content.
  • a non-oil content is not limited to this, but is typically ketchup, and besides this, various sauces, liquid glues and the like can be exemplified.
  • a particularly viscous paste or slurry (for example, a viscosity at 25 ° C. of 100 cps or more) is preferable. This is because such a viscous content is desired to be able to be discharged out of the container without remaining attached to the container wall.
  • it is suitably applied to foods such as ketchup, sauce, and mustard.
  • Such foods are hot-filled (usually 80 to 90 ° C.) also for sterilization, but as described above, the polyolefin container of the present invention is also capable of receiving such a heat history. This is because the superior fallability of the contents can be maintained.
  • the inner layer forming the inner surface of the container is formed of a polyolefin resin layer. That is, since the polyolefin-based resin is excellent in moisture resistance, by forming the inner layer of the container with the polyolefin-based resin, the polyolefin-based resin is stably held over a long period of time so that moisture contained in the non-oil content is not released, Not only can it be possible to prevent the quality of the non-oil content from deteriorating, but it is also possible to effectively avoid the performance degradation of the container due to swelling due to moisture, etc., and this is advantageous in terms of cost.
  • the polyolefin resin as described above is not particularly limited, and examples thereof include low density polyethylene, linear low density polyethylene, medium or high density polyethylene, polypropylene, poly 1-butene, and poly 4-methyl-1-. Examples include pentene. Of course, a random or block copolymer of ⁇ -olefins such as ethylene, propylene, 1-butene and 4-methyl-1-pentene may be used. Further, the melt flow rate (MFR, JIS K-6728, 190 ° C.) of such a polyolefin-based resin is generally in the range of about 0.1 to 3 g / 10 min.
  • polyolefin-based resins are polyethylene and polypropylene, and polyethylene is most suitable.
  • polyethylene is most suitable.
  • the polyolefin container of the present invention has an inner layer formed of the polyolefin resin as described above, and a predetermined lubricant component is blended in the inner layer.
  • a predetermined lubricant component is blended in the inner layer.
  • Various known resin layers are provided, and a multi-layer structure can also be used. That is, in such a multilayer structure, the lubricant component blended in the polyolefin resin layer does not bleed on the outer surface of the container, but selectively bleeds on the inner surface of the container. As a result, a sufficient molecular layer is formed on the inner surface of the container so as to show the inverted fallability, which is extremely suitable for improving the fallability.
  • a typical example of the multilayer structure as described above is a five-layer structure of an inner surface layer (polyolefin resin layer) / adhesive layer / oxygen barrier layer / adhesive layer / outer surface layer.
  • the adhesive layer is formed from an adhesive resin such as an acid-modified olefin resin
  • the oxygen barrier layer is formed from an oxygen barrier resin such as an ethylene vinyl alcohol copolymer. Is done.
  • the outer surface layer is generally formed of the same polyolefin resin as that of the inner surface layer, but may be formed of another thermoplastic resin layer, for example, a polyester resin such as polyethylene terephthalate.
  • the lubricant component need only be provided in the inner surface layer, and need not be provided in other layers. Only the lubricant component blended in the inner surface layer contributes to the improvement in the inverted fallability, and those blended in the other layers do not contribute to the improvement in the fallability and only increase the cost. It is.
  • the multilayer structure is not limited to the above five-layer structure, and the outer surface layer can be further formed into a multilayer structure using, for example, an oxygen barrier layer and an adhesive layer. Furthermore, it is possible to form a two-layer structure in which an inner layer containing saturated aliphatic amide is formed from low-density polyethylene, linear low-density polyethylene, or the like, and a high-density polyethylene layer with high printability is provided on the outer surface side. .
  • the thickness of the various layers constituting the container wall may be an appropriate thickness according to its function.
  • the thickness of the inner surface layer in which the lubricant component is blended should be at least 30 ⁇ m or more. . If this thickness is too thin, an amount of amide sufficient to form a multi-molecular layer will not bleed, resulting in an unsatisfactory inverted fall.
  • the adhesive layer only needs to have a thickness that can secure a sufficient adhesive force, and the oxygen barrier layer has a thickness that can effectively prevent deterioration of contents due to oxygen permeation by showing good oxygen barrier properties. And it is sufficient.
  • the polyolefin container of the present invention having the structure as described above uses a resin (or resin composition) constituting each layer, and, for example, a molten parison is formed by extrusion molding, injection molding, co-extrusion molding, co-injection molding, or the like. It is manufactured by extruding and performing known direct blow molding, or preparing a test tubular container forming preform, and subjecting this preform to known blow molding.
  • the polyolefin container thus formed has, for example, a bottle shape as shown in FIG. 2, and includes a neck portion 1 provided with a thread, a trunk portion 5 connected to the neck portion via a shoulder portion 3, and It has a bottom 7 that closes the lower end of the body, and after filling such a container with non-oil content, a metal foil 9 such as aluminum foil is applied to the upper end opening of the neck 1 by heat sealing.
  • a metal foil 9 such as aluminum foil is applied to the upper end opening of the neck 1 by heat sealing.
  • the polyolefin container of the present invention has the bottle shape as described above.
  • a sheet-shaped container preform is molded, and plug assist molding using the preform is performed.
  • Such a cup-shaped container does not take out the non-oil content by tilting the container, but the non-oil content is effectively prevented from adhering to the container wall. It can take out without leaving in a container, and can apply this invention effectively.
  • a lubricant component is blended in the polyolefin-based resin layer of the inner layer of the polyolefin container described above, and the inverted fallability of the intended contents can be ensured by this lubricant component.
  • a saturated aliphatic amide As such a lubricant component, it is necessary to selectively use a saturated aliphatic amide. That is, when an unsaturated aliphatic amide such as oleic acid amide is used, the melting point is low and the thermal mobility of the molecule is high. Although dropability can be obtained, when the contents are hot-filled, the multimolecular layer on the inner surface of the container formed by bleeding collapses, and the inverted fallability is greatly reduced. Become. On the other hand, the saturated aliphatic amide has a higher melting point than the unsaturated aliphatic amide and has low thermal mobility, so that the multilayer formed by bleeding does not collapse due to hot filling of the contents, As a result, it is possible to maintain excellent inverted fall characteristics.
  • a long chain amide having 18 or more carbon atoms is required.
  • Long chain amides having a carbon number greater than 18 include tuberculostearic acid amide, arachidic acid amide, behenic acid amide, lignoceric acid amide, serotic acid amide, montanic acid amide, melicic acid amide and other monoamides, methylenebisstearic acid Bisamides such as amide, ethylenebisstearic acid amide, and ethylene bisbehenic acid amide may be mentioned. Of these, behenamide is most preferable.
  • behenic acid amide is a linear saturated aliphatic amide having 22 carbon atoms and a melting point of about 110 ° C.
  • the main component of the lubricant component is such a linear saturated aliphatic amide.
  • a saturated aliphatic amide having a small carbon number is used in combination as a lubricant component.
  • the total amount of lubricant component ie, saturated aliphatic amide
  • saturated aliphatic amide is a long chain amide having greater than 18 carbon atoms. That is, a saturated aliphatic amide having a large number of carbon atoms has a higher number of hydrocarbons in the molecule and exhibits a strong hydrophobicity than a saturated aliphatic amide having a small number of carbon atoms.
  • the total amount of the lubricant component is a long-chain saturated aliphatic amide.
  • unsaturated aliphatic amides have a low melting point and high thermal mobility of molecules, so that the multimolecular layer formed by bleeding becomes unstable.
  • the lubricant component (saturated aliphatic amide mainly composed of a long-chain amide having a carbon number of more than 18) is contained in the polyolefin resin layer forming the inner surface layer of the container in an amount of 100 wt. It is preferable to add 0.05 to 1 part by weight, particularly 0.07 to 0.5 part by weight per part.
  • the polyolefin container of the present invention containing the above-described lubricant component in the polyolefin resin layer of the inner layer is a non-oil content by directly hot filling the non-oil content without any special heat treatment. Used as a package that is hot-filled with objects. That is, since non-oily contents are more likely to propagate bacteria, hot filling for the purpose of sterilization of contents and containers is applied.
  • the temperature for hot filling is usually 60 ° C. or higher, particularly in the range of 60 to 95 ° C. This is because when the temperature is too low, sterilization by hot filling becomes insufficient, and when the temperature is higher than necessary, the content is altered (moisture volatilization).
  • the non-oil content is hot-filled into the polyolefin container after molding, and then the mouth of the container is sealed with the metal foil described above, and the cap is attached so that the non-oil content is hot. A filled package is obtained.
  • a highly ordered multi-layer composed of a lubricant component as shown in FIG. 1 is formed on the inner surface of the container.
  • a peak derived from the lubricant multi-layer structure formed on the inner surface of the container is expressed (see FIG. 3). That is, as understood from FIG. 3, in the X-ray profile, a large primary peak appears around 2 degrees, and a secondary peak slightly smaller than the primary peak appears around 6 degrees. It can be seen that it is expressed.
  • the primary peak indicates that there is a layer with a thickness of about 4.37 nm with respect to the vertical direction of the inner surface of the container.
  • behenic acid amide indicates that two molecules face each other to form a bimolecular membrane structure that is connected in a planar shape.
  • a bimolecular film-like structure formed on the inner surface of the container is widely distributed on the inner surface of the container, and a large number of layers are stacked in a direction perpendicular to the inner surface. It can be seen that many multi-molecular layer structures, that is, many regularly arranged multi-molecular layers are formed.
  • Such an X-ray profile is peculiar to the hot-fill package obtained using the container of the present invention, and in the conventionally known hot-fill package, a regularly ordered highly ordered multi-layer is formed. No X-ray profile having such a primary peak and secondary peak is present.
  • an excellent inverted fall property with respect to the non-oil content is expressed, for example, even if the non-oil content is viscous.
  • the contents do not adhere to the inner surface of the container wall and quickly fall to the neck, so the contents can be quickly removed by tilting the container. It can be removed neatly without leaving in the container.
  • the permeation rate of the pigment component derived from the contents can be remarkably slowed by the formation of the multi-layer structure, coloring or deterioration of transparency due to the contents can be effectively prevented, The advantage that the remaining amount of contents can be easily confirmed visually is also achieved.
  • the above-described multi-molecular layer of the lubricant component is formed by bleeding over time after molding the container, and does not require any special heat treatment, and the formed multi-molecular layer has a high melting point with low thermal mobility. Since the amide (saturated aliphatic amide) is formed, the multimolecular layer is not collapsed by hot filling. In addition, the multimolecular layer is not sufficiently formed immediately after molding. For example, when the non-oil content is hot filled immediately after molding of the container, the multimolecular layer is not sufficiently formed at the time of filling. It may not be formed.
  • X-ray diffraction measurement After the content sliding test, the bottle is washed with water, and then a 25 mm ⁇ 20 mm test piece is cut out from the body of the bottle, attached to a measurement cell, and attached to a sample table so that the inner surface of the container is a measurement surface.
  • X-ray diffraction measurement (X-ray diffractometer manufactured by Rigaku Corporation) was performed by a reflection method under conditions.
  • Target Cu Accelerating voltage: 40KV Acceleration current: 200 mA Measurement range: 1.5 to 10 ° (2 ⁇ ) Air scattering correction was performed on the obtained measurement data, and this was used as sample data.
  • the peak around 2 degrees and the peak around 6 degrees are the primary and secondary peaks, respectively, there are peaks showing clear peaks, no clear peaks, A peak equivalent to the baseline was defined as no peak.
  • the base line indicates an X-ray profile obtained from the inner surface of a multilayer container (blank) formed in the same manner as in Example 1 without adding a saturated aliphatic amide to the innermost layer.
  • the above aliphatic amide-containing polyethylene resin pellets are mixed with low-density polyethylene (LDPE) and adjusted so that the total amount of saturated aliphatic amide per 100 parts by weight of polyethylene is 0.3 parts by weight.
  • the resin for forming the inner layer saturated aliphatic amide-containing LDPE
  • the resin for forming the inner layer saturated aliphatic amide-containing LDPE
  • Using the above innermost layer forming resin and a resin forming another layer using a direct blow molding machine, under conditions of a cylinder temperature of 200 ° C. and a die head temperature of 210 ° C., four types and six layers of multilayer bottles (Capacity 500 mL) was molded.
  • the layer configuration of this multilayer bottle, the layer thickness, and the resin used for forming each layer are as follows.
  • Comparative Example 4 Forming a multi-layer bottle Filling a tomato ketchup into the bottle in exactly the same manner as in Examples 1 to 3, except that the innermost layer is a low-density polyethylene resin containing 0.03 parts by weight of oleic acid amide.
  • the above-described content sliding test, X-ray diffraction measurement, and container colorability test were performed. The results are shown in Table 1. Moreover, the X-ray-diffraction measurement result about this sample bottle is shown in FIG.
  • Example 1 has a low b value even under long-term storage conditions as compared with Comparative Examples 4 and 5, and the colorability of the container (bottle) is reduced. I understand.
  • the non-oil content hot-filled polyolefin container of the present invention holds the container filled with the non-oil content hot, the non-oil content does not adhere to the inner surface of the container, It drops quickly and can prevent coloring due to the filled contents in a transparent container. For this reason, it can be used as a polyolefin container for non-oil hot filling such as ketchup, sauce, mustard and the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Wrappers (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Packages (AREA)

Abstract

L'invention porte sur un contenant en polyoléfine qui permet à un contenu non huileux de bien s'écouler vers le bas dans le contenant lorsque le contenant est inversé, sans nécessiter de traitement spécial tel qu'un traitement thermique même lorsque le contenu est rempli à chaud. De façon spécifique, l'invention porte sur un contenant en polyoléfine qui est caractérisé par le fait qu'il possède, formée sur au moins la surface interne de celui-ci, une couche de résine de polyoléfine contenant des composants lubrifiants, les composants lubrifiants contenus dans la couche de résine de polyoléfine étant des amides aliphatiques saturés, et un amide aliphatique saturé ayant 18 atomes de carbone ou plus composant au moins 70 % en poids de composants lubrifiants.
PCT/JP2010/053498 2009-03-09 2010-03-04 Contenant en polyoléfine pour un remplissage à chaud d'un contenu non huileux WO2010103985A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2011503783A JP5569517B2 (ja) 2009-03-09 2010-03-04 非油性内容物熱間充填包装体

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009-054426 2009-03-09
JP2009054426 2009-03-09

Publications (1)

Publication Number Publication Date
WO2010103985A1 true WO2010103985A1 (fr) 2010-09-16

Family

ID=42728275

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2010/053498 WO2010103985A1 (fr) 2009-03-09 2010-03-04 Contenant en polyoléfine pour un remplissage à chaud d'un contenu non huileux

Country Status (2)

Country Link
JP (1) JP5569517B2 (fr)
WO (1) WO2010103985A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012137755A1 (fr) 2011-04-06 2012-10-11 東洋製罐株式会社 Contenant d'emballage à base de polyoléfine
WO2013054616A1 (fr) * 2011-10-11 2013-04-18 東洋製罐株式会社 Récipient à structure multicouche
JP2015229496A (ja) * 2014-06-03 2015-12-21 東洋製罐グループホールディングス株式会社 包装体
EP2955120A4 (fr) * 2013-02-08 2016-10-26 Toyo Seikan Group Holdings Ltd Récipient ayant d'excellentes propriétés de glissement pour contenu fluide
KR20160138550A (ko) * 2014-04-18 2016-12-05 토요 세이칸 가부시키가이샤 점조 내용물의 충전 방법
WO2017094123A1 (fr) * 2015-12-01 2017-06-08 東洋製罐グループホールディングス株式会社 Emballage devant être stocké dans un environnement à basse température et procédé d'utilisation pour ce dernier

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2627127B2 (ja) * 1992-08-21 1997-07-02 呉羽化学工業株式会社 樹脂製ボトル
JP2003528193A (ja) * 2000-03-22 2003-09-24 ソルヴェイ ポリオレフィンズ ユーロープ ベルギウム ポリエチレンを主成分とする組成物および該組成物から加工される物品の製造方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003205926A (ja) * 2002-01-15 2003-07-22 Toyo Seikan Kaisha Ltd 多層プラスチックボトル
JP4218729B2 (ja) * 2007-03-15 2009-02-04 東洋製罐株式会社 非油性内容物用ポリエチレン製容器

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2627127B2 (ja) * 1992-08-21 1997-07-02 呉羽化学工業株式会社 樹脂製ボトル
JP2003528193A (ja) * 2000-03-22 2003-09-24 ソルヴェイ ポリオレフィンズ ユーロープ ベルギウム ポリエチレンを主成分とする組成物および該組成物から加工される物品の製造方法

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103596847A (zh) * 2011-04-06 2014-02-19 东洋制罐集团控股株式会社 聚烯烃系包装容器
WO2012137755A1 (fr) 2011-04-06 2012-10-11 東洋製罐株式会社 Contenant d'emballage à base de polyoléfine
US10336529B2 (en) 2011-04-06 2019-07-02 Toyo Seikan Group Holdings, Ltd. Polyolefin packing container
WO2013054616A1 (fr) * 2011-10-11 2013-04-18 東洋製罐株式会社 Récipient à structure multicouche
JP2013082485A (ja) * 2011-10-11 2013-05-09 Toyo Seikan Kaisha Ltd 多層構造容器
CN103874638A (zh) * 2011-10-11 2014-06-18 东洋制罐集团控股株式会社 多层结构容器
KR101615834B1 (ko) 2011-10-11 2016-04-26 도요세이칸 그룹 홀딩스 가부시키가이샤 다층 구조 용기
US9550601B2 (en) 2011-10-11 2017-01-24 Toyo Seikan Group Holdings, Ltd. Containers of a multilayered structure
US10556741B2 (en) 2013-02-08 2020-02-11 Toyo Seikan Group Holdings, Ltd. Container having excellent slipping property for fluid contents
EP2955120A4 (fr) * 2013-02-08 2016-10-26 Toyo Seikan Group Holdings Ltd Récipient ayant d'excellentes propriétés de glissement pour contenu fluide
US10189637B2 (en) 2013-02-08 2019-01-29 Toyo Seikan Group Holdings, Ltd. Container having excellent slipping property for fluid contents
KR20160138550A (ko) * 2014-04-18 2016-12-05 토요 세이칸 가부시키가이샤 점조 내용물의 충전 방법
US20170144783A1 (en) * 2014-04-18 2017-05-25 Toyo Seikan Co., Ltd. Method of filling viscous content
JPWO2015159643A1 (ja) * 2014-04-18 2017-04-13 東洋製罐株式会社 粘稠内容物の充填方法
EP3133032A4 (fr) * 2014-04-18 2017-12-13 Toyo Seikan Co., Ltd. Procédé pour le remplissage avec un contenu visqueux
KR102071999B1 (ko) * 2014-04-18 2020-01-31 토요 세이칸 가부시키가이샤 점조 내용물의 충전 방법
CN106232501A (zh) * 2014-04-18 2016-12-14 东洋制罐株式会社 粘稠内容物的填充方法
US10392138B2 (en) 2014-04-18 2019-08-27 Toyo Seikan Co., Ltd. Method of filling viscous content
JP2015229496A (ja) * 2014-06-03 2015-12-21 東洋製罐グループホールディングス株式会社 包装体
US10486387B2 (en) 2015-12-01 2019-11-26 Toyo Seikan Group Holdings, Ltd. Package for storage under low temperature environment and method using same
CN108367861A (zh) * 2015-12-01 2018-08-03 东洋制罐集团控股株式会社 低温环境下贮存用包装体及其使用方法
WO2017094123A1 (fr) * 2015-12-01 2017-06-08 東洋製罐グループホールディングス株式会社 Emballage devant être stocké dans un environnement à basse température et procédé d'utilisation pour ce dernier

Also Published As

Publication number Publication date
JPWO2010103985A1 (ja) 2012-09-13
JP5569517B2 (ja) 2014-08-13

Similar Documents

Publication Publication Date Title
JP5125635B2 (ja) 非油性内容物用多層プラスチック容器
JP5105035B2 (ja) ポリオレフィン系包装容器
JP6731951B2 (ja) 積層構造体及びそれから作製されるスタンドアップパウチ
KR101454943B1 (ko) 비유성(非油性) 내용물용 다층 플라스틱 용기
JP5569517B2 (ja) 非油性内容物熱間充填包装体
CN110077686B (zh) 对流动性内容物具有优良的滑动性的容器
JP5573377B2 (ja) 多層プラスチック容器
JP6107046B2 (ja) 容器
WO2013065735A1 (fr) Composition de résine polyéthylène, et récipient mettant en œuvre celle-ci
KR101950006B1 (ko) 수성 액상체에 대한 미끄러짐성이 뛰어난 중공 성형체
JP5343972B2 (ja) 熱間充填包装体及びその包装体の製造方法
JP5598098B2 (ja) 非油性内容物用オレフィン系樹脂ボトル
JP5434176B2 (ja) 非油性内容物用多層プラスチック容器
JPH07276587A (ja) 重量物用包装袋
JP5428615B2 (ja) 内容物による着色が抑制されたプラスチック容器
JP2004237647A (ja) 酸化染毛剤用プラスチック多層容器
JP5779889B2 (ja) 多層プラスチック容器
WO2020149230A1 (fr) Contenant à dentifrice logeant du dentifrice
JP6209957B2 (ja) 液体含有マスターバッチ
JP7124326B2 (ja) フィルムおよび包装体
JP2008279662A (ja) 多層ボトル
JP4022091B2 (ja) 耐衝撃性に優れた多層ブロー成形容器
JP2023137826A (ja) 多層プラスチック容器
JP2015168471A (ja) 多層構造スクイズボトル
JP2020090018A (ja) 包装用多層構造体

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10750739

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2011503783

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10750739

Country of ref document: EP

Kind code of ref document: A1