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WO2006115149A1 - Element d’emballage pour le chauffage par faisceau electronique utilisant une fixation plane - Google Patents

Element d’emballage pour le chauffage par faisceau electronique utilisant une fixation plane Download PDF

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Publication number
WO2006115149A1
WO2006115149A1 PCT/JP2006/308231 JP2006308231W WO2006115149A1 WO 2006115149 A1 WO2006115149 A1 WO 2006115149A1 JP 2006308231 W JP2006308231 W JP 2006308231W WO 2006115149 A1 WO2006115149 A1 WO 2006115149A1
Authority
WO
WIPO (PCT)
Prior art keywords
hook
packaging member
electron beam
heating
opening
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2006/308231
Other languages
English (en)
Japanese (ja)
Inventor
Tateki Yamakawa
Satoru Ono
Shiro Ogawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kuraray Fastening Co Ltd
Original Assignee
Kuraray Fastening Co Ltd
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 Kuraray Fastening Co Ltd filed Critical Kuraray Fastening Co Ltd
Priority to JP2007514630A priority Critical patent/JP4918482B2/ja
Publication of WO2006115149A1 publication Critical patent/WO2006115149A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/24—End- or aperture-closing arrangements or devices using self-locking integral or attached closure elements, e.g. flaps
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3446—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated by microwaves
    • B65D81/3461—Flexible containers, e.g. bags, pouches, envelopes
    • 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
    • B65D2205/00—Venting means
    • 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
    • B65D2313/00—Connecting or fastening means
    • B65D2313/02—Connecting or fastening means of hook-and-loop type

Definitions

  • the present invention relates to an electron beam heating packaging member using a hook-and-loop fastener, and more specifically, heats a water-containing food or fiber article by irradiating an electron beam, that is, a high-frequency electromagnetic wave, or a water-containing fiber.
  • the present invention relates to an electron beam calorie packaging member used for sterilizing stored articles with water vapor generated from the articles.
  • Frozen foods and refrigerated foods are frequently used as household foods and commercial foods. These frozen foods are heated for cooking in a pan or the like immediately before consumption, or heated by a high-frequency electromagnetic wave in an electron beam irradiation apparatus typified by a microwave oven and used for food. Microwave ovens are easy to use and easy to use, and they are also energy efficient.
  • the packaging member described above is provided with a water vapor exhaust port and an opening of the packaging member separately.
  • the structure is complicated and the manufacturing cost is high, and it has not been widely spread.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 11 11544
  • Patent Document 2 JP 2000-344279 A
  • the present invention solves this problem, and an object of the present invention is to simplify the structure and reduce the manufacturing cost by providing a structure in which the opening of the packaging member and the water vapor exhaust port are provided at the same location.
  • An object of the present invention is to provide an electron beam heating packaging member that can be easily used and re-sealed and reheated immediately after use.
  • the present inventors have obtained a packaging member for heating an electron beam having good performance by engaging a specific surface fastener and using it as a sealing member.
  • the present invention has been reached.
  • the present invention is an electron beam heating packaging member made of thermoplastic resin, and two hook surface fasteners having hook-like engagement elements are engaged with each other in the opening of the packaging member.
  • the engagement portion formed by the two hook surface fasteners has a water vapor permeability of 0.5 to 200 cc Zm'min with respect to water vapor at 100 ° C, and is 0 in the presence of the heat water vapor. 5-5.
  • a packaging member for heating an electron beam characterized by having an engagement / separation pressure resistance of OkgZcm.
  • an electron beam heating packaging member capable of easily and safely performing electron beam calorie heat in a state where a water-containing article such as food is contained. Further, in the present invention, by using a specific molded hook surface fastener as a constituent member, it can be firmly melt-bonded to polyethylene or polypropylene as a base material of the packaging member, and an electron beam heating packaging member can be easily obtained. Can be manufactured.
  • FIG. 1 is a schematic plan view showing an example of an electron beam heating packaging member of the present invention.
  • FIG. 2 Schematic cross-sectional view of the packaging material of Fig. 1 along X-X line
  • FIG. 3 is a perspective schematic view showing another example of the electron beam heating packaging member of the present invention.
  • FIG. 4 is a schematic plan view showing another example of the electron beam heating packaging member of the present invention.
  • FIG. 5 Schematic cross-sectional view of the packaging member in FIG.
  • FIG.6 Schematic diagram of the enlarged cross section of the high temperature seal
  • the packaging member for heating an electron beam of the present invention can be used without limitation as long as it has a shape that can accommodate and seal an article, and can be in a bag shape, a box shape, a cylindrical shape, or the like.
  • the packaging material is made of a material that can withstand -30 ° C freezing temperature and about 100 ° C water vapor, such as thermoplastic resin such as polyethylene, polypropylene, polyamide, polyester, fiber, paper, etc.
  • a composite with can also be used. From the viewpoint of fusibility, materials containing polyethylene or polypropylene are particularly preferred.
  • the packaging member of the present invention is formed by processing the raw material into a packaging member of an arbitrary shape by a known technique and engaging two hook hook-and-loop fasteners having hook-like engagement elements with each other in the opening.
  • Packaging member is formed by processing the raw material into a packaging member of an arbitrary shape by a known technique and engaging two hook hook-and-loop fasteners having hook-like engagement elements with each other in the opening.
  • the hook surface fastener used in the present invention includes both a molded hook surface fastener manufactured by a known extrusion molding method and a molded hook surface fastener manufactured by an injection molding method. It is desirable that the resin constituting the hook surface fastener of the present invention not only has excellent melt adhesion to the base material, but also has excellent formability in order to satisfactorily produce a hook surface fastener that is a fine molded body. . Further, the hook-shaped engaging element standing on the substrate of the hook hook-and-loop fastener can adopt various shapes such as substantially mushroom-shaped, arrow-shaped or forceps-shaped, and particularly preferably a substantially mushroom-shaped engaging element. .
  • the surface fastener that is fused to the polyethylene or polypropylene-made case is manufactured from the same material.
  • melt adhesion to polyethylene and polypropylene is expected to show good performance in the composition containing both rosins, but the present inventors have changed the thermal shrinkage rate of the molded surface fastener depending on the amount of components in the composition. It has been found that the shape and performance of the molded surface fastener after melt bonding are greatly affected.
  • PE polyethylene
  • PP polypropylene
  • PP polypropylene
  • the composition contains 20 to 50% by weight of PE and 80 to 50% by weight of PP.
  • the obtained molded surface fastener may be fused well only to one of the PE or PP base materials.
  • a molded surface fastener made of a composition having a PE content of more than 70% by weight has a large shrinkage of the surface fastener when fused to a base material having a heat shrinkage rate of 10% or more.
  • the hook-and-loop fastener itself may be deformed and the target engagement force may be reduced.
  • a hook surface fastener When a hook surface fastener is produced by melt molding the composition having the above composition, PE has a melt index of 3 to 20, while PP has a melt index of 0.7 to 3. Is preferably used. A polymer with a high melt index has a low melt viscosity. A polymer with a low index is high in melt viscosity.
  • a hook surface fastener excellent in moldability can be obtained by a composition obtained by melt-mixing PE having a low melt viscosity and PP having a high melt viscosity.
  • the fine hook-shaped engaging elements are not formed in a desired shape, and the engaging elements to be erected fall down or the shape of the forceps-shaped or substantially mushroom-shaped head deforms.
  • the engaging element is deformed in this way, the engaging force, which is the most important performance of the hook surface fastener, is greatly reduced.
  • the PE used in the present invention can be used without particular limitation as long as it is within the above-mentioned melt index, and examples thereof include high-density PE, low-density PE, and so-called meta-mouth cene PE that is polymerized by a meta-mouth catalyst. Can be used. PP can also be used without particular limitation as long as it is within the above melt index range. On the other hand, the PE and PP used for the base material may be selected according to the intended use.
  • the melt index is measured by a method based on JIS K6921.
  • the molded hook hook-and-loop fastener used in the present invention is a mixture of the above-mentioned PE and PP chips, supplied to the ether ruder, and heated to 200 ° C to 250 ° C and transferred to the discharge port to be homogeneous. A mixed molten resin composition is obtained.
  • a molded hook hook-and-loop fastener can be produced by the above-described method by injecting the composition into a tape or a fine pore roll extruded from a discharge roller.
  • the molded hook hook-and-loop fastener used in the present invention is used by being melt-bonded to the base material of a packaging member made of PE or PP, and therefore it is more preferable to have a bending resistance of 50 to 125 g. It is 75-120g. Molded surface fasteners with a bending resistance of less than 50 g are highly flexible. The hooks are easily deformed and may easily come off when the molded hook surface fasteners are engaged with each other. In addition, a molded hook hook-and-loop fastener having a bending resistance exceeding 125 g has high rigidity, and thus has low affinity with a flexible substrate such as a film, which may make fusion bonding difficult.
  • the bending resistance is measured using a handle O meter, which is a texture measuring machine, according to JIS.
  • the molded hook hook and loop fastener to be measured has a width of 25 mm and a length of 150 mm, and the plate width for carrying the load is 30 mm. Measure as
  • the molded hook hook-and-loop fastener and the base material of the packaging member used in the present invention are melt-bonded by a high-frequency electromagnetic wave or an ultrasonic welder.
  • a PE substrate can be melt bonded at a temperature around 140 ° C
  • a PP substrate can be melt bonded at a temperature near 180 ° C.
  • the molded hook hook-and-loop fastener is not limited to the packaging member intended by the present invention, and can be widely used.
  • the size and density of the engaging elements and the width of the hook-and-loop fastener can be arbitrarily selected depending on the use of the molded hook hook-and-loop fastener.
  • the height of the hook-like engagement element is preferably 0.3 to LOmm, and the element density is preferably 10 to 300 Zcm2.
  • the width of the molded surface fastener is preferably 10 to 50 mm.
  • the height of the engaging element is 0.5 to 6. Omm, and the hook-like engaging element density is 15 to 250.
  • the book Zcm 2 is preferred.
  • the formed hook hook-and-loop fastener preferably has a width of 2 to 15 mm. If a structure for engaging the molded hook hook-and-loop fasteners of the present invention is provided at the opening of the bag, it is possible to provide an opening and a vapor permeability that cannot be obtained by the opening of the conventional rail-shaped zipper.
  • the hook-and-loop fastener used in the present invention presses and engages hook hook-and-loop fasteners, peels and releases the hook-and-loop fasteners, and performs sealing and opening.
  • a hook-and-loop fastener is a force used in combination of a hook-and-loop hook fastener and a loop hook-and-loop fastener having a loop-like engagement element.
  • a combination of hook hook-and-loop fasteners is used because the effect of contamination on the hook-and-loop fasteners is low.
  • the size of the hook-like engagement element and its density are selected to obtain the required performance.
  • a water-containing article is accommodated in a packaging member provided with a hook surface fastener, and the packaging member is heated by an electron beam so that the water-containing article is heated.
  • the packaging member is heated by an electron beam so that the water-containing article is heated.
  • the engagement portion where hook hook-and-loop fasteners used in the present invention are engaged with each other has a water vapor permeability with respect to heated steam at 100 ° C (water vapor permeability of an opening using a hook-and-loop fastener). It is necessary to have an engagement / separation pressure of 0.5 to 5 OkgZcm in the presence of the same heating steam.
  • VP water vapor permeability
  • the range of the water vapor permeability of the engaging portion by the hook surface fastener used in the present invention is 1.0 to LOOccZm'min.
  • the VP is provided with a water vapor inlet in the packaging member, supplies water vapor at 100 ° C, and adsorbs the water vapor discharged from the hook-and-loop fastener engaging portion provided in the opening of the packaging member to a moisture absorbent such as silica gel. It is measured by determining the amount of weight increase.
  • the hook hook-and-loop fastener used in the present invention described above is further referred to as an engagement separation pressure (hereinafter referred to as PER; Pressure of Engagement Release) of 0.5 to 5.
  • PER Engagement separation pressure
  • OkgZcm in the presence of heated steam at 100 ° C. It may be necessary to have).
  • the PER of the engaging portion where hook hook-and-loop fasteners heated with water vapor at 100 ° C are engaged is less than 0.5 kgZcm, the hook-and-loop fastener is disengaged during heating, and the packaging member opens. There is a fear.
  • the PER exceeds 5. OkgZcm, it is difficult to release the engagement of hook surface fasteners because the hook surface fastener has a high engagement force.
  • a more preferable range of PER of the hook surface fastener is 1.0 to 4. OkgZcm.
  • PER is measured according to a method for measuring the tensile strength (latch strength) of a hook surface fastener in a water vapor atmosphere at 100 ° C.
  • two hook-and-loop fasteners (sample size: 25mm x 25mm) with double-sided adhesive tape attached on the back are overlapped on the engagement surface, and a 2kg iron roller is reciprocated once on the surface, and crimped.
  • the hook hook-and-loop fastener used in the present invention can be arbitrarily designed and selected according to its use, but the height of the hook-like engagement element is 0.3 to about LOmm and the hook density is 10 About 300 Zcm 2
  • the required VP can be obtained by adjusting the density of the engaging elements of the hook hook-and-loop fastener. In other words, if the density of the hook-like engagement elements is made sparse, the gap between the elements becomes large and water vapor is easily released, and if the density is made large, the gap between the elements becomes small and the release of water vapor is small. Become.
  • the VP engages two hook surface fasteners (the first hook surface fastener and the second hook surface fastener) with the same or different heights of the hook-like engagement elements, and provides a gap between the surface fasteners. It can be adjusted by discharging water vapor from the gap.
  • the height difference between the engaging element of the first hook surface fastener and the engaging element of the second hook surface fastener is preferably adjusted to be 0 to 5. Omm. Even with a differential force of Omm, there is a small gap microscopically, and in fact there is considerable water vapor release. A more preferable height difference is 0 to 3.0 mm.
  • the structure with a large difference is also suitable for the purpose of discharging the liquid in the packaging member after water vapor is released.
  • FIG. 1 is a schematic plan view showing an example of the electron beam heating packaging member of the present invention
  • FIG. 2 is a schematic cross-sectional view of the packaging member of FIG.
  • the packaging member shown in Fig. 1 is a continuous tube-shaped molded body 1 made of a resin film that serves as a base material 1.
  • the upper and lower ends 2 and 3 are sealed, and two hook hook-and-loop fasteners are engaged inside the upper end 2.
  • the engaging part 4 is provided.
  • the engaging portion 4 is provided by arranging the hook surface fasteners 5 and 6 to engage with the inner surface of the bag as shown in FIG.
  • a bun with a bean-jam filling is contained in the packaging member described above and sealed.
  • the upper end 2 is sealed with, for example, an opening notch 7 provided below, so that the engagement portion by the hook surface fastener and the outside air are separated. Make contact.
  • the packaging member is heated in a microwave oven (hereinafter sometimes abbreviated as a range). Water vapor is generated as food is heated, and when the water vapor pressure becomes high, the water vapor is released from the engagement portion (sealing portion) by the hook surface fastener. By appropriately releasing water vapor, the packaging member can be prevented from rupture and desired high-temperature heating can be performed safely.
  • the packaging member may burst due to an increase in the internal pressure, or the food may be overheated and the flavor may be impaired.
  • the water vapor is excessively discharged, heating at the desired temperature cannot be performed, and moisture is excessively evaporated from the food and the flavor is impaired.
  • FIG. 3 is a perspective schematic view showing another example of the electron beam heating packaging member of the present invention.
  • the packaging member in FIG. 3 has substantially the same structure as the packaging member shown in FIG. 1, except that it has a bottom 8 with a large area. Since the packaging member shown in FIG. 3 can accommodate a large amount of articles and is stable, the packaging member can be provided as it is to a table after heating, which is convenient for the user. is there.
  • the efficiency of living is increasing in the number of households, and the use of processed foods and cooked foods is increasing. Microwave ovens are frequently used for heating, but there are still packaging materials that are convenient for heating. Not provided.
  • the packaging member of the present invention solves the problems of the conventional range heating packaging member, and can provide the user with safety and many conveniences.
  • the packaging member of the present invention can also be used for packaging of articles other than food that require heating.
  • hot and cold hand towels used in the service sector such as homes and restaurants have been heated after cooking with hot water or by placing wet towels on a dish-like container.
  • the above method is inefficient. If a wet towel is previously stored in the packaging member of the present invention and cooked in the range according to the above procedure, a desired amount of warm towel is easily obtained.
  • the packaging member of the present invention can also be used for preparing the hot and cold towel. If towels that have been washed and moistened in advance are stored in the packaging material of the present invention, stored in a refrigerator, etc., and heated to a hot and humid towel when necessary, the work efficiency will be improved and the hygienic environment will be improved. Can be planned. In addition, there are appliances that are sterilized in hospitals, nursing homes, home care, etc. (heat sterilization articles such as glass, ceramic, and plastic medical instruments such as medical plastic gloves). The packaging member of the present invention can also be used for sterilization of the instrument. A sterilizing instrument and a hydrous material (for example, a hydrous fiber product such as a hydrous nonwoven fabric) are accommodated in the packaging member of the present invention.
  • a hydrous material for example, a hydrous fiber product such as a hydrous nonwoven fabric
  • the instrument If the instrument is heated in a range and the instrument is sufficiently brought into contact with water vapor at 100 ° C, the instrument can be sterilized. If sterilization is followed by cooling in the packaging material, contamination of the equipment up to use can be prevented and the sanitary environment can be improved. Strict sterilization is regulated by the laws and regulations of each country such as the Japanese Pharmacopoeia. Therefore, it is desirable to adjust the engagement of the hook hook-and-loop fastener so as to conform to the regulations.
  • the packaging member of the present invention is not limited to the above-described uses, and can be widely applied to articles using high-temperature steam generation and a high-temperature steam atmosphere.
  • the present inventors have further examined the packaging member for food, and particularly when a food containing liquid such as sauce or soup is contained in the packaging member, the liquid flows in the packaging member, The hook hook-and-loop fastener flows into the hook hook-and-loop fastener and fills the gap between the hook-like engagement elements, and the water vapor transmission function in the range heating may be lost. It was found that it might be difficult to engage. Such a problem is important to be improved in an electron beam heating packaging member containing food. To solve this problem, a specific high-temperature opening seal was provided on the packaging material.
  • a high-temperature opening seal part toward the outer edge of the opening part of the packaging member a hook-and-loop fastener engaging part in which two hook hook-and-loop fasteners having hook-like engaging elements are engaged with each other, and an opening It has been found that by providing an opening sealing part sealed at the edge of the part in sequence, good range heating can be performed even when food containing liquid is contained in the packaging member.
  • the high-temperature opening seal portion provided in the electron beam heating packaging member of the present invention is sealed when the packaging member is cold or at a temperature not higher than the heating temperature, and is heated to approximately 90 ° C or higher.
  • the seal portion is soft and the seal is opened.
  • FIG. 4 is a schematic plan view showing another example of the packaging member for electron beam heating according to the present invention
  • FIG. 5 is a schematic sectional view taken along line XX of the packaging member of FIG.
  • the upper and lower ends 2 and 3 of the continuous tube-shaped molded body 1 having a resin film strength are provided with a sealed portion, and two hook hook-and-loop fasteners are engaged on the inner side (inner edge side) of the upper end portion 2.
  • An engagement part 4 is provided.
  • a high temperature opening seal portion 9 is provided inside the engagement portion 4.
  • the hook-like engagement elements 5, 6 of the hook surface fasteners facing each other engage with each other, and the engagement portion 4 by hook surface fastener engagement has a fine gap therebetween.
  • FIG. 6 is an enlarged schematic cross-sectional view of the high-temperature opening seal portion in the present invention.
  • the high temperature unsealing seal portion 9 is a force that can be formed into various shapes as required. Specific examples thereof are shown in FIGS. 6 (A) and 6 (B).
  • FIG. 6B is another example of the high-temperature opening seal portion, and has a structure in which a rail-like continuous protrusion 12 is fitted into the thermosoftening resin 13.
  • the rail-shaped protrusion 12 is firmly fitted into the resin 13 at room temperature, and when the resin 13 is heated and softened, it is easily removed from the resin and the seal is opened.
  • the shape of the ridge and heat softening resin can be arbitrarily changed according to the purpose.
  • the resin used for the high-temperature opening seal part can be used without limitation as long as it has no eluate and has the desired heat softening property, and copolymerized polyolefin is a particularly preferred example.
  • the heat softening resin used in the present invention is softened to such an extent that the heat softening resin in contact with the heat softening resin is separated when heated at 90 ° C for about 1 minute in the presence of dry heat or water vapor.
  • the resin softens so that the resin pieces inserted into the resin can be easily taken out.
  • 90 ° C need not be strict, as long as it softens at a temperature of about 80-95 ° C!
  • the resin film constituting the packaging member, the hook surface fastener and the heat-softening resin resin are bonded to each other at a temperature of 100 to 110 ° C by using heat fusion or a hot-melt adhesive. It is desirable to have a durable adhesive.
  • a food inlet is provided on the side opposite to the opening in the packaging member, the food containing moisture is contained, and the inlet is opened after deaeration. What is necessary is just to seal again and to make a sealing part. At this time, the temperature of the food must be adjusted to be lower than the soft temperature so that the high-temperature opening seal is maintained.
  • the sealing portion at the upper end portion 2 of the packaging member and the engaging portion 4 by hook surface fastener engagement are separated in advance, and the hook surface fastener is connected. Keep the joints in contact with the outside air.
  • the shape of the packaging member is not limited to a bag shape as shown in FIG. 4, but may have a dish-shaped bottom surface, and the upper portion thereof may be covered with a film so as to be integrated.
  • Polyethylene 50 weight 0/0 melt index of 5 the composition melt index of polypropylene 50% by weight is 1 by melt extrusion, to obtain a molded hook surface fastener scratch.
  • the resulting molded hook hook-and-loop fastener has a substantially mushroom-shaped engagement element, the height of the engagement element is 1.5 mm, the element density is 30 Zcm, the width is 25 mm, and the length is 10 cm.
  • This molded hook hook-and-loop fastener was fused to a polyethylene plate at 140 ° C. for 1 second.
  • a polyethylene sheet for a display board having a width of 7 cm and a length of 10 cm with a nap nonwoven fabric attached to the back surface was prepared, and the back surface of the display board was engaged with a hook surface fastener fused to the polyethylene plate.
  • the hook hook-and-loop fastener had little heat shrinkage and was firmly fused with the polyethylene plate, and also engaged well with the nap nonwoven fabric of the display board.
  • the engagement peel test was repeated 100 times for this display board. There was no influence on the fusion between the fastener and the polyethylene plate.
  • the obtained molded hook hook-and-loop fastener is a hook hook-and-loop fastener with an engagement element height of 2 mm, an element density of 75 Zcm 2 , a width of 6 mm, and a length of 12 cm, which is substantially mushroom-shaped, and its bending resistance is l lOg. It was.
  • the hook surface fastener was molded in the same manner as in Reference Example 1 except that the composition of the composition was changed to 5% by weight of polyethylene and 95% by weight of polypropylene, and the obtained hook surface fastener was used in Reference Example 1.
  • a hook surface fastener was molded in the same manner as in Reference Example 1 except that the composition was changed to 75% by weight of polyethylene and 25% by weight of polypropylene, and the bending resistance was 40 g.
  • This hook hook-and-loop fastener was fused to the opening of the polypropylene film packaging member in the same manner as in Reference Example 2.
  • the hook surface fastener provided in the opening became too flexible, the engagement of the hook surface fastener was easily released, and the bag was opened.
  • a bag-like packaging member (12 cm ⁇ 20 cm) as shown in FIG. 1 was produced.
  • Two molded hook hook-and-loop fasteners obtained in Reference Example 2 were heat-sealed and fixed so as to engage with each other inside the opening.
  • the hook surface fastener had an engagement element height of 2 mm, an element density of 75 Zcm 2 , an element array of 4 elements, and a width of 6 mm.
  • the water vapor permeability (VP) at the engaging portion of the hook surface fastener was 50 cc Zm'min, and the engagement separation pressure (PER) was 2. OkgZcm.
  • the first molded hook hook-and-loop fastener (manufactured by Kuraray Fasung Co., Ltd.) having a substantially mushroom-like engagement element is one with an engagement element height of 5 mm, an element density of 20 Zcm 2 , an element array of 4 elements, and a width of 6 mm.
  • the height of the engaging element is 2 mm (the height of the engaging element in the first hook hook-and-loop fastener).
  • a packaging member was prepared in the same manner as in Example 1 except that the hook surface fastener engaging portion was configured using a 3 mm difference), an element density of 20 Zcm 2 , an element row of 4 and a width of 6 mm.
  • the water vapor permeability of the engaging portion was 180 ccZm ⁇ min, and the engagement separation pressure was 3.5 kgZcm.
  • Example 2 In the same manner as in Example 1, two frozen sweet potatoes were accommodated and subjected to range heating for 2 minutes. As a result, the hook surface fastener engaging portion water vapor leaked and the sweet potato was heated well.
  • a polypropylene film packaging member shown in FIG. 3 having a bottom surface of 15 cm X 15 cm and a height of about 12 cm is produced, and a molding film having two substantially mushroom-like engagement elements inside the opening.
  • a hook-and-loop fastener manufactured by Kurarayasu Jung
  • the hook surface fasteners had engagement element heights of 2.5 mm and 2 mm (height difference of 0.5 mm), an element density of 250 Zcm 2 , an element array of 4 elements, and a width of 6 mm.
  • the water vapor permeability at the hook hook-and-loop fastener engagement is lOccZm • min, and the engagement / separation resistance is 2 Okg / cm.
  • the hook surface fastener is engaged and heated in a home microwave oven for 5 minutes. It was possible to sterilize well.
  • Example 3 the packaging member is the same as Example 3 except that the head of the engaging element of the molded hook hook-and-loop fastener has a diameter of about 1.5 mm and the height of both engaging elements is 5 mm.
  • the resulting packaging member had a water vapor permeability of 120 cc Zm'min at the hook hook-and-loop fastener engaging portion and an engagement separation pressure of 6. OkgZcm.
  • the resulting packaging member was unsuitable as a packaging member because the engagement force of the hook hook-and-loop fastener was too strong and the engagement peeling was difficult.
  • Example 3 A packaging member similar to that of Example 3 was produced except that the heights of the engaging elements of both molded hook surface fasteners were the same (2.5 mm).
  • the water vapor permeability at the hook surface fastener engaging part was 0.3 ccZm'min, and the engagement separation pressure was 2. OkgZcm.
  • the towel for toweling was accommodated and heated in the range. As a result, the water pressure leaked from the hook hook-and-loop fastener engaging part was too high, and the engaging part was ruptured.
  • a bag-shaped packaging member (15 cm ⁇ 20 cm) was produced using a polypropylene film.
  • Two molded hook surface fasteners manufactured by Kurarayasu Jung Co., Ltd.
  • the hook hook and loop fastener The height of the engaging element is 2 mm, the element density is 75 Zcm 2 , the element row is 4 and the width is 6 mm, the water vapor permeability at the engaging part of the hook-and-loop fastener is 50 cc Zm'min, the engagement separation pressure resistance
  • the force was 2. OkgZcm.
  • the hook hook-and-loop fastener engaging portion Underneath (inner side) the hook hook-and-loop fastener engaging portion, a polyethylene heat-softening resin and a polypropylene rail strip were fused to a polypropylene film, respectively.
  • the resulting packaging member is heated to 90 ° C, rail-like protrusions are inserted into the softened resin, cooled to room temperature to form a high-temperature opening seal, and the outside (opening edge) was sealed and the upper end portion was used as an opening sealing portion to obtain a packaging member as shown in FIG.
  • a food inlet was provided on the side opposite to the sealed opening of the packaging member, and the hamburger with sauce was accommodated and deaerated, and then the inlet was fused to form a lower end sealing part.
  • the packaging member was swung or pressed by hand at room temperature, but the high-temperature opening seal part was not broken in the packaging member, and the source also passed through the seal part.
  • the upper sealing part of the packaging member was opened and removed, so that the hook surface fastener engaging part was in contact with the outside air.
  • the packaging member was heated in a home microwave oven while leaning against the dish. About 1 minute later, the high-temperature opening seal part opened, and heating continued with water vapor leaking from the hook surface fastener engaging part. After heating for about 2 minutes, a well-heated hamburger was obtained.
  • the first hook hook-and-loop fastener has a substantially mushroom-like engagement element, the engagement element height is 5 mm, the major axis of the head of the engagement element is lmm, the element density is 20 Zcm 2 , and the element row is 4
  • a molded hook hook-and-loop fastener having a width of 6 mm (manufactured by Kuraray Jung) was prepared.
  • the second hook hook-and-loop fastener has a substantially mushroom-like engaging element, the height of the engaging element is 2 mm (the difference in height from the first hook hook-and-loop fastener is 3 mm), and the element density is 20 mm.
  • a molded hook hook-and-loop fastener (manufactured by Kurarayasu Jung Co., Ltd.) having Zcm 2 , 4 element rows and 6 mm width was prepared.
  • a packaging member was produced in the same manner as in Example 4 except that these were used to configure the hook surface fastener engaging portion.
  • the water vapor permeability at the engaging portion of the hook surface fastener was 180 ccZm * min, and the engagement separation pressure was 3.5 kgZcm.
  • Example 4 In the same manner as in Example 4, the vegetables were boiled and heated in the range for about 3 minutes. Until the steam was generated, the broth was blocked by the high-temperature opening seal part, and then the high-temperature opening seal part was opened, and water vapor leaked from the hook surface fastener engaging part. The resulting boiled vegetables were well heated.
  • the packaging material for electron beam heating of the present invention includes frozen foods such as sweet potato, eggplant, buns with ingredients, fried rice, various cooked foods such as boiled fish, boiled vegetables, hamburger, curry and stew. It can contain water-containing fiber goods such as wet towels (wet towels) and provide them to consumers. Furthermore, it can be suitably used for sterilization of articles for heat sterilization.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)

Abstract

La présente invention concerne un élément d’emballage pour le chauffage par faisceau électronique constitué d’une résine thermoplastique, caractérisé en ce qu’au niveau d’une région d’ouverture de l’élément d’emballage, deux fixations planes à crochet comportant des éléments d’engrènement en forme de crochets sont fournies en relation d’engrènement mutuel ; cette partie d’engrènement mutuel des deux fixations planes à crochet montre une perméabilité à la vapeur de 0,5 à 200 cm3/m ⋅ min par rapport à de la vapeur à 100 °C et montre une résistance à la pression de dégagement de 5 à 5,0 kg/cm en présence de la vapeur chauffée. L’élément d’emballage est structuré de sorte que la région d’ouverture et un orifice de libération de vapeur sont formés au même endroit, entraînant ainsi non seulement une simplification de la structure et une réduction des coûts de production, mais proposant également un élément d’emballage pour le chauffage par faisceau électronique facile à utiliser et qui facilite sa réouverture et son réchauffage.
PCT/JP2006/308231 2005-04-21 2006-04-19 Element d’emballage pour le chauffage par faisceau electronique utilisant une fixation plane Ceased WO2006115149A1 (fr)

Priority Applications (1)

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JP2005123362 2005-04-21
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JP2005180591 2005-06-21
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011152947A (ja) * 2010-01-28 2011-08-11 Kuraray Fastening Co Ltd 包装袋
JP2011190604A (ja) * 2010-03-15 2011-09-29 Kuraray Fastening Co Ltd 網戸取付け用面ファスナー
JP2014012552A (ja) * 2012-07-05 2014-01-23 Seisan Nipponsha:Kk 減圧弁付き包装用袋
JP5952742B2 (ja) * 2010-12-03 2016-07-13 クラレファスニング株式会社 再封可能な包装袋
JP2019006422A (ja) * 2017-06-21 2019-01-17 大日本印刷株式会社 包装袋および積層体

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11229095B2 (en) 2014-12-17 2022-01-18 Campbell Soup Company Electromagnetic wave food processing system and methods
JP2018044273A (ja) 2016-09-16 2018-03-22 栗田工業株式会社 紙の製造方法、製紙用添加剤の製造装置、及び紙の製造装置

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JPH06156510A (ja) * 1992-11-13 1994-06-03 Houseki Planning:Kk 胴体開封型ジッパー袋
JP2003040356A (ja) * 2001-07-30 2003-02-13 Nakamoto Pakkusu Kk 食品収容袋およびこれを用いた加熱調理方法
JP2003081284A (ja) * 2001-09-07 2003-03-19 Hosokawa Yoko Co Ltd 再閉自在包装袋およびその製造方法

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JPH11189278A (ja) * 1997-12-25 1999-07-13 Sanyo Engineering Kk 電子レンジ対応の食材包装容器
JP4334677B2 (ja) * 1999-06-07 2009-09-30 大日本印刷株式会社 食品用袋
DE10394306T5 (de) * 2003-09-18 2006-08-17 Ykk Corp. Geräuscharmer Flächenverschluß
JP2006213366A (ja) * 2005-02-04 2006-08-17 Plasto:Kk 包装袋及び包装体

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JPH06156510A (ja) * 1992-11-13 1994-06-03 Houseki Planning:Kk 胴体開封型ジッパー袋
JP2003040356A (ja) * 2001-07-30 2003-02-13 Nakamoto Pakkusu Kk 食品収容袋およびこれを用いた加熱調理方法
JP2003081284A (ja) * 2001-09-07 2003-03-19 Hosokawa Yoko Co Ltd 再閉自在包装袋およびその製造方法

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011152947A (ja) * 2010-01-28 2011-08-11 Kuraray Fastening Co Ltd 包装袋
JP2011190604A (ja) * 2010-03-15 2011-09-29 Kuraray Fastening Co Ltd 網戸取付け用面ファスナー
JP5952742B2 (ja) * 2010-12-03 2016-07-13 クラレファスニング株式会社 再封可能な包装袋
JP2014012552A (ja) * 2012-07-05 2014-01-23 Seisan Nipponsha:Kk 減圧弁付き包装用袋
JP2019006422A (ja) * 2017-06-21 2019-01-17 大日本印刷株式会社 包装袋および積層体
JP2023160960A (ja) * 2017-06-21 2023-11-02 大日本印刷株式会社 包装袋および積層体

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