US20100199610A1 - Packaging material of gas-bag type, process for packaging article, and process for producing packaging material - Google Patents

Packaging material of gas-bag type, process for packaging article, and process for producing packaging material Download PDF

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US20100199610A1
US20100199610A1 US12765509 US76550910A US2010199610A1 US 20100199610 A1 US20100199610 A1 US 20100199610A1 US 12765509 US12765509 US 12765509 US 76550910 A US76550910 A US 76550910A US 2010199610 A1 US2010199610 A1 US 2010199610A1
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tube
bodies
packaging
process
sheet
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US12765509
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Norimitsu Komatsu
Hirobumi Sugano
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Norimitsu Komatsu
Hirobumi Sugano
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D81/00Containers, 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
    • B65D81/02Containers, 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 specially adapted to protect contents from mechanical damage
    • B65D81/05Containers, 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 specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
    • B65D81/051Containers, 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 specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using pillow-like elements filled with cushioning material, e.g. elastic foam, fabric
    • B65D81/052Containers, 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 specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using pillow-like elements filled with cushioning material, e.g. elastic foam, fabric filled with fluid, e.g. inflatable elements

Abstract

The present invention provides a process for packaging an article using a packaging material of gas-bag type for packaging easily deformable parts or devices of office equipment or OA equipment having various sizes and shapes such as containers containing toner, containers containing developing agent, photoconductors, process cartridges, and complex units of a developer and a toner collector. The packaging material of gas-bag type comprises tube-like bodies and connecting portions, wherein the tube-like bodies are able to swell by being injected inner gas, the connecting portions connect the tube-like bodies in parallel, the tube-like bodies are bendable so as to wrap an article to be packaged, and the packaging material is formed from substantially flat two sheets of one front sheet and one back sheet in a condition that the inner gas is substantially evacuated from the tube-like bodies.

Description

    CROSS-REFERENCE TO RELATED APPLICATIONS
  • This application is a divisional of patent application Ser. No. 11/482,816, filed Jul. 10, 2006, which is a continuation of Application No. PCT/JP2005/000324, filed on Jan. 6, 2005, and claims priority to Japanese patent application No. 2004-002794, filed Jan. 8, 2004.
  • BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates to packaging materials of a gas-bag type which are adapted to provide packaging of parts or devices of office equipment or office automation (OA) equipment, in particular, complicated, precise, and delicate parts or devices, and also slippery and/or elongated parts or devices; processes for packaging articles by means of the packaging materials, and processes for producing the packaging materials.
  • 2. Description of the Related Art
  • Recently, office equipment, OA equipment, and office machines have been demanded to reduce size and weight, to increase functionality, to lower cost, and to enhance performance. In such background of the art, parts or devices such as toner cartridges, photoconductor units, developing units, complex assemblies of a photoconductor and a developer, and complex units of a developer and a toner collector utilized for the office equipment, OA equipment, and office machines such as copiers, facsimiles, and printers have reduced their size and weight. These reductions of size and weight have reduced durability against deformation and destruction; on the other hand, such parts or devices have increased their functionalities and performances.
  • Accordingly, minor deformation or destruction tends to result in a serious or critical damage of the parts or devices; thus the packaging of such parts or devices and their transportation and storage have come to be significantly important.
  • Conventionally, office equipment or electrical equipment is typically disposed at a concave portion of cushioning packaging material such as styrenefoam, or only both ends are supported by cushioning packaging material such as styrenefoam, then are constrained in a cardboard box, and collected, transported, and stored, as shown in FIG. 6. However, the styrenefoam is bulky since bubbles occupy about 98% by volume of the material; therefore there has been a problem that the material should be addressed by some way. Further, since a kind of parts or devices such as containers of developing agent are bottles or cartridges made of resins, such containers hardly deform and thus may be easily set to a main body of the equipment.
  • On the contrary, from the view point of environmental issues, easily deformable bags are commercially utilized nowadays in order to reduce the amount of packaging material as well as to reduce the volume and amount of waste products. In some cases, containers are filled with powder and may be utilized directly as cartridges.
  • When such easily deformable containers are employed as parts or devices of office equipment or OA equipment in a form of a cartridge, there often arise a problem that the cartridge cannot be smoothly set to the main body of the equipment due to deformation or breakage during transportation or due to solidification of content along with deformation of the parts or devices. Further, not breakage but mere folding of containers at narrow site such as neck of the container may lead to the setting impossible or missing sometimes.
  • In order to address such problems, cushioning material has been utilized as packaging material. However, it has been experienced that the amount of packaging material is increased, the cost for package is raised, and the efficiency of transportation and storage are decreased due to enlarged package, when the parts or devices are contained in boxes made of the cushioning material. In addition, the boxes containing parts or devices of office equipment or OA equipment should usually be stored in a certain direction in order to prevent the breakage or deformation of the parts or devices.
  • As such, novel packaging materials and/or packaging processes are demanded in the art that afford to collect, transport, and store parts or devices of office equipment or OA equipment without occurrences of breakage and deformation, and allow to take out easily from the package while providing sufficient cushioning effect; and also the volume reduction, collection, and reuse are easily carried out economically after the usage.
  • Japanese Utility Model Registration (JP-Y) No. 3039149 proposes a partitioned corrugated box for package and protection of two articles, in which a corrugated box is partitioned; thereby deformation of contained articles is reduced. However, in the partitioned corrugated box capable of containing two articles, if the articles are sold separately, either of the two articles should be sold; the deformation of the container shape and the solidification of the content may lead to failure of setting to the main body of the equipment, when the article is not utilized immediately. Further, the increased amount of the cushioning material brings about raise of packaging cost and increase of waste packaging material; and enlarged package boxes themselves result in decrease of transporting efficiency. In addition, the partitioned corrugated boxes typically present a rectangular shape, namely, narrowing the design range.
  • Japanese Patent Application Laid-Open (JP-A) No. 2002-145264 discloses a package structure for litho printing board 114 as shown in FIG. 7, in which intermediate package body 110 is stacked on pallet portion 128 of box pallet 126 and stored in box portion 129, plural air bags 148 are inserted into the space between box portion 129 of box pallet 126 and intermediate package body packed by package members 142, 144; pressured air is filled into the air bags depending on the space volume between box portion 129 and intermediate package body 110. Air bags 148 filled with pressured air can constrain intermediate package body 110 stored in box portion 129, and can protect bundle 113 by cushioning outer shock.
  • As a result, various litho printing boards having different sizes are allegedly packed in a simple fashion without altering the size of packaging material for the various litho printing boards, and also the packaging material after usage can be effectively recycled. However, when corrugated boxes are utilized for package boxes in the process, moisture may effect adversely on the content, thus the protection of the content is not perfectly reliable.
  • Japanese Utility Model Application Laid-Open (JP-U) No. 6-51178 discloses a packaging device for packaging precision electronic parts or devices as shown in FIG. 8, in which the device includes first cushioning member 81 and second cushioning member 82 of bag-like vinyl sheet that are formed by arranging plural concave disposing portions 84, 85 for sustaining electronic parts or devices; connecting portion 83 formed by folding and duplicating the cushioning members 81, 82 and connected freely; an air inlet provided at the first cushioning material 81; and connecting path 83 to connect the inside of cushioning members 81, 82; wherein the parts or devices are gripped and sustained between disposing portion 84 of the first cushioning member 81 filled with air and the opposite disposing portion 85 of the second cushioning member 82.
  • In the packaging device, the packaging of precision electronic parts or devices may be carried out easily, and the cushioning member may be properly handled, and also the space for storing may be reduced. However, in the packaging device, the first cushioning member 81 and second cushioning member 82 of bag-like vinyl sheet cannot cover the precision electronic parts or devices sufficiently or perfectly.
  • Japanese Patent Application Laid-Open (JP-A) No. 2000-62850 discloses a packaging device for packaging articles such as copiers as shown in FIG. 9, in which two cushioning members 913 filled with air are wrapped around article 902 such as a copier to be packaged, supporting pillars 907 are inserted at the end of each cushioning material 913, adjacent supporting pillars 907 are connected by connecting member 903, and a valve is provided to cushioning material 913 into which air is injected, which is intended to package articles such as copiers easily, and to remove the package easily, to protect the articles certainly, and to decompose and transport easily after usages.
  • However, the packaging device is intended to package articles having relatively large size such as copiers, thus is not suitable to apply to parts or devices of office equipment or OA equipment.
  • SUMMARY OF THE INVENTION
  • The objects of the present invention are to provide a packaging material of gas-bag type, a process for packaging an article, and a process for producing the packaging material of gas-bag type, for packaging easily deformable parts or devices of office equipment or OA equipment having various sizes and shapes such as containers containing toner, containers containing developing agent, photoconductors, process cartridges, and complex units of a developer and a toner collector; wherein deformation of the containers during transportation and breakage or deformation of the parts or devices due to solidification of content may be suppressed, setting of the parts or devices may be carried out easily, the parts or devices may be packaged without cushioning material, the parts or devices may be properly protected and fixed, superior design may be performed, the packaged parts or devices may be suitably housed into packaging boxes, and volume reduction and recycle may be easily carried out, and also repeated usages are possible.
  • The packaging material of gas-bag type according to the present invention includes tube-like bodies and connecting portions,
  • wherein the tube-like bodies are able to swell by being injected inner gas, the connecting portions connect the tube-like bodies in parallel, the tube-like bodies are bendable so as to wrap an article to be packaged, and the packaging material is formed from substantially flat two sheets of one front sheet and one back sheet in a condition that the inner gas is substantially evacuated from the tube-like bodies.
  • The packaging material of gas-bag type according to the present invention is flexible and resilient and also may be less slippery in the condition that inner gas is injected into the tube-like bodies; therefore, parts or devices of office equipment or OA equipment having various sizes and shapes such as containers containing toner, containers containing developing agent, photoconductors, process cartridges, and complex units of a developer and a toner collector may be firmly fixed or sustained in the packaging material. Further, the volume of packaged articles is relatively small; separation or drop of articles from the packaging material may be effectively prevented; the packaged articles may display higher impact resistance; transportation is relatively easy; decomposition of the packaged articles is relatively easy; the packaging material may be repeatedly utilized in decomposition and packaging; volume reduction may be conducted in two steps; and the cost of the packaging material is lower even having sufficient adaptability of recycle and reuse.
  • Preferably, the packaging material is bendable to at least one of front side and back side of the packaging material in substantially perpendicular directions to the axis of the tube-like bodies.
  • Preferably, the packaging material includes adhered areas, non-adhered areas, and a gas entrance, the non-adhered areas represent non-adhesion between the front sheet and the back sheet and yield the portions of the tube-like bodies and gas passages communicating the tube-like bodies, and the adhered areas represent adhesion between the front sheet and the back sheet and yield the portions of the connecting portions and sealing portions at margin of the packaging material.
  • Preferably, each of the gas passages is provided at a part of each connecting portion, and at least a part of connecting portions possesses at least one connectable portion.
  • Preferably, each tube-like body possesses nodes at which portion the tube-like body swells larger compared to the other portion of the tube-like body.
  • Preferably, one sheet among the front sheet and the back sheet is a transparent resin sheet, and the other sheet among the front sheet and the back sheet possesses a concave-convex surface.
  • Preferably, the sheet possessing a concave-convex surface represents a laminated construction of a resin film sheet and a divided-assigned sheet.
  • Preferably, the resin film sheet is formed from three layers of polyethylene film, polyamide film, and polyethylene film.
  • Preferably, both of the transparent resin sheet and the sheet possessing a concave-convex surface have an oxygen-gas permeability of 3 cc/m2/24 hours or less.
  • Preferably, at least a part of connecting portions possesses at least one tearable perforated line in parallel to the axial of tube-like bodies, each axis of the tube-like bodies is bendable to at least one of front side and back side of the packaging material, and at least one end portion of the tube-like bodies possesses a connectable portion.
  • Preferably, at least a part of connecting portions possesses at least one cut line in parallel to the axial of tube-like bodies, each axis of the tube-like bodies is bendable to at least one of front side and back side of the packaging material, and at least one end portion of the tube-like bodies possesses a connectable portion.
  • Preferably, the tube-like bodies are possible to attach and detach each other repeatedly at the connectable portion.
  • Preferably, at least a part of tube-like bodies possess at least one additional adhered area at the end portion of the tube-like bodies.
  • Preferably, the at least one additional adhered area at the end portion of the tube-like bodies possesses at least one tearable perforated line.
  • Preferably, the gas entrance is provided to one of tube-like bodies at the end portion.
  • Preferably, an elongated gripping portion is provided to the packaging material substantially in parallel to the axis of the tube-like bodies.
  • Preferably, the friction between the sheet possessing a concave-convex surface and the packaged article is larger than the friction between the transparent resin sheet and the packaged article.
  • Preferably, the pressure of the inner gas injected into the tube-like bodies is 6 hPa to 9 hPa, and the inner gas is nitrogen gas.
  • Preferably, the width of the connecting portions that connect the tube-like bodies in parallel is 0.5 cm to 3 cm.
  • Preferably, the diameter of the tube-like bodies is 2 cm to 10 cm.
  • Preferably, the number of the tube-like bodies is 2 or more.
  • Preferably, the article to be packaged is at least one of parts and devices utilized in office equipment and OA equipment.
  • Preferably, the article to be packaged is selected from the group consisting of containers containing toner, containers containing developing agent, photoconductors, process cartridges, and complex units of a developer and a toner collector.
  • The process for packaging an article according to the present invention, by means of a packaging material of gas-bag type including tube-like bodies and connecting portions, includes:
  • disposing an article to be packaged on the packaging material,
  • bending the tube-like bodies toward the article to be packaged, and
  • connecting at least one of the connecting portions and tube-like bodies,
  • wherein the tube-like bodies are able to swell by being injected inner gas, the connecting portions connect the tube-like bodies in parallel, the tube-like bodies are bendable so as to wrap an article to be packaged, and the packaging material is formed from substantially flat two sheets of one front sheet and one back sheet in a condition that the inner gas is substantially evacuated from the tube-like bodies.
  • Preferably, the packaging material is bendable to at least one of front side and back side of the packaging material in substantially perpendicular directions to the axis of the tube-like bodies.
  • Preferably, the packaging material includes adhered areas, non-adhered areas, and a gas entrance, the non-adhered areas represent non-adhesion between the front sheet and the back sheet and yield the portions of the tube-like bodies and gas passages communicating the tube-like bodies, and the adhered areas represent adhesion between the front sheet and the back sheet and yield the portions of the connecting portions and sealing portions at margin of the packaging material.
  • Preferably, each of the gas passages is provided at a part of each connecting portion, and at least a part of connecting portions possesses at least one connectable portion.
  • Preferably, each tube-like body possesses nodes at which portion the tube-like body swells larger compared to the other portion of the tube-like body.
  • Preferably, one sheet among the front sheet and the back sheet is a transparent resin sheet, and the other sheet among the front sheet and the back sheet possesses a concave-convex surface.
  • Preferably, the sheet possessing a concave-convex surface represents a laminated construction of a resin film sheet and a divided-assigned sheet.
  • Preferably, the resin film sheet is formed from three layers of polyethylene film, polyamide film, and polyethylene film.
  • Preferably, both of the transparent resin sheet and the sheet possessing a concave-convex surface have an oxygen-gas permeability of 3 cc/m2/24 hours or less.
  • Preferably, at least a part of connecting portions possesses at least one tearable perforated line in parallel to the axial of tube-like bodies, each axis of the tube-like bodies is bendable to at least one of front side and back side of the packaging material, and at least one end portion of the tube-like bodies possesses a connectable portion.
  • Preferably, at least a part of connecting portions possesses at least one cut line in parallel to the axial of tube-like bodies, each axis of the tube-like bodies is bendable to at least one of front side and back side of the packaging material, and at least one end portion of the tube-like bodies possesses a connectable portion.
  • Preferably, the tube-like bodies are possible to attach and detach each other repeatedly at the connectable portion.
  • Preferably, at least a part of tube-like bodies possesses at least one additional adhered area at the end portion of the tube-like bodies.
  • Preferably, the at least one additional adhered area at the end portion of the tube-like bodies possesses at least one tearable perforated line.
  • Preferably, the gas entrance is provided to one of tube-like bodies at the end portion.
  • Preferably, an elongated gripping portion is provided to the packaging material substantially in parallel to the axis of the tube-like bodies.
  • Preferably, the friction between the sheet possessing a concave-convex surface and the packaged article is larger than the friction between the transparent resin sheet and the packaged article.
  • Preferably, the pressure of the inner gas injected into the tube-like bodies is 6 hPa to 9 hPa, and the inner gas is nitrogen gas.
  • Preferably, the width of the connecting portions that connect the tube-like bodies in parallel is 0.5 cm to 3 cm.
  • Preferably, the diameter of the tube-like bodies is 2 cm to 10 cm.
  • Preferably, the number of the tube-like bodies is 2 or more.
  • Preferably, the article to be packaged is at least one of parts and devices utilized in office equipment and OA equipment.
  • Preferably, the article to be packaged is selected from the group consisting of containers containing toner, containers containing developing agent, photoconductors, process cartridges, and complex units of a developer and a toner collector.
  • The process for producing a packaging material of gas-bag type according to the present invention that possesses tube-like bodies and connecting portions includes:
  • laminating partially a front sheet and a back sheet to form adhered areas which correspond to the connecting portions and sealing portions at margin of the packaging material, and non-adhered areas which corresponds to the tube-like bodies and gas passages communicating the tube-like bodies, and
  • swelling the non-adhered areas to form the tube-like bodies and the gas passages communicating the tube-like bodies by injecting inner gas from a gas entrance,
  • wherein the tube-like bodies are able to swell by being injected inner gas, the connecting portions connect the tube-like bodies in parallel, the tube-like bodies are bendable so as to wrap an article to be packaged, and the packaging material is formed from substantially flat two sheets of one front sheet and one back sheet in a condition that the inner gas is substantially evacuated from the tube-like bodies.
  • Preferably, the packaging material is bendable to at least one of front side and back side of the packaging material in substantially perpendicular directions to the axis of the tube-like bodies.
  • Preferably, the pressure of the inner gas injected into the tube-like bodies is 6 hPa to 9 hPa, and the inner gas is nitrogen gas.
  • Preferably, the width of the connecting portions that connect the tube-like bodies in parallel is 0.5 cm to 3 cm.
  • Preferably, the diameter of the tube-like bodies is 2 cm to 10 cm.
  • Preferably, the number of the tube-like bodies is 2 or more.
  • Preferably, the article to be packaged is at least one of parts and devices utilized in office equipment and OA equipment.
  • Preferably, the article to be packaged is selected from the group consisting of containers containing toner, containers containing developing agent, photoconductors, process cartridges, and complex units of a developer and a toner collector.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a schematic plan view of an exemplary packaging material of gas-bag type according to the present invention.
  • FIG. 2A is a schematic cross section showing an exemplary construction of packaging material of gas-bag type according to the present invention.
  • FIG. 2B is another schematic cross section showing an exemplary construction of packaging material of gas-bag type according to the present invention.
  • FIG. 3 is a schematic perspective view showing an exemplary construction of packaging material of gas-bag type according to the present invention.
  • FIG. 4 is a schematic perspective view showing an exemplary construction of packaging material of gas-bag type having a gripping portion according to the present invention.
  • FIG. 5 is an exemplary photograph showing an application of packaging material of gas-bag type according to the present invention.
  • FIG. 6 is an exemplary photograph showing a conventional packaging material.
  • FIG. 7 is another exemplary photograph showing a conventional packaging material.
  • FIG. 8 is still another exemplary photograph showing a conventional packaging material.
  • FIG. 9 is still another exemplary photograph showing a conventional packaging material.
  • DESCRIPTION OF THE PREFERRED EMBODIMENTS Packaging Material of Gas-Bag Type, Process for Packaging Article, and Process for Producing Packaging Material
  • The packaging material according to the present invention includes tube-like bodies, connecting portions, and other members depending on requirements.
  • The process for packaging an article according to the present invention utilizes the packaging material according to the present invention. The process for producing a packaging material according to the present invention produces the packaging material according to the present invention. The process for packaging an article and the process for producing a packaging material will be clarified through explanations with respect to the packaging material of gas-bag type according to the present invention.
  • The packaging material of gas-bag type according to the present invention includes tube-like bodies and connecting portions, wherein the tube-like bodies are inflated by injecting gas, the connecting portions connect the tube-like bodies in parallel, and the tube-like bodies are bendable so as to wrap an article to be packaged.
  • The packaging material is preferably bendable to both of front and back sides of the packaging material in perpendicular directions to the axis of the tube-like bodies.
  • The number of the tube-like bodies connected in parallel may be selected depending on the required application; preferably, the number is 2 or more.
  • The packaging material preferably represents a sheet-like configuration formed of one front sheet and one back sheet in a condition where gas within the tube-like bodies is substantially evacuated.
  • The front sheet and the back sheet preferably provide non-adhered areas and adhered areas, the non-adhered areas represent non-adhesion between the front sheet and the back sheet and yield the portions of the tube-like bodies and gas passages communicating the tube-like bodies, and the adhered areas represent adhesion between the front sheet and the back sheet and yield the portions of the connecting portions and sealing portions at margin of the packaging material.
  • Each of the gas passages is preferably provided at a part of each connecting portion, and at least a part of connecting portions possesses at least one connectable portion; the tube-like bodies may preferably attach and detach from each other repeatedly at the connectable portion; and each tube-like body preferably possesses nodes at which the tube-like body inflates larger compared to other portions of the tube-like body.
  • Preferably, one sheet among the front sheet and the back sheet is a transparent resin sheet, and the other sheet among the front sheet and the back sheet possesses a concave-convex surface. The transparent resin sheet may be formed of polyethylene, polypropylene, polyester, polycarbonate and the like; the sheet may be a mono-layer sheet or a laminated layer sheet thereof the lamination may be performed by fusing, adhesion, and the like.
  • Preferably, the sheet possessing a concave-convex surface represents a laminated construction of a resin film sheet and a divided-assigned sheet, and the resin film sheet is formed from three layers of polyethylene, polyamide, and polyethylene. Examples of the material of the divided-assigned sheet include polyethylene, polypropylene, polyester, polycarbonate, and the like; the material may be selected independently with the materials of the resin film sheet and the divided-assigned sheet.
  • Preferably, both the transparent resin sheet and the sheet possessing a concave-convex surface have an oxygen-gas permeability of 3 cc/m2/24 hours or less. The oxygen-gas permeability may be determined by means of a method for determining gas permeability defined in JIS K7126, for example.
  • Preferably, at least a part of connecting portions possess at least one tearable perforated line in parallel to the axis of the tube-like bodies, each axis of the tube-like bodies is bendable to both of the front and back sides of the packaging material, and at least one end portion of the tube-like bodies possesses a connectable portion.
  • Preferably, at least a part of the connecting portions possess at least one cut line in parallel to the axis of tube-like bodies, each axis of the tube-like bodies is bendable to both of the front and back sides of the packaging material, and at least one end portion of the tube-like bodies possesses a connectable portion.
  • Preferably, the tube-like bodies may attach and detach from each other repeatedly at the connectable portion; at least a part of tube-like bodies possesses at least one additional adhered area at the end portion of the tube-like bodies; and at least one additional adhered area at the end portion of the tube-like bodies includes at least one tearable perforated line.
  • Preferably, the gas entrance is provided to one of the tube-like bodies at the end portion; an elongated gripping portion is provided to the packaging material substantially in parallel to the axis of the tube-like bodies; and the friction between the sheet possessing a concave-convex surface and the packaged article is larger than the friction between the transparent resin sheet and the packaged article. The friction coefficient may be determined by means of a method for determining friction coefficient defined in JIS K7125, for example.
  • Preferably, the pressure of the inner gas injected into the tube-like bodies is 6 hPa to 9 hPa. Examples of the inner gas include air and nitrogen gas; preferably, the inner gas is nitrogen gas.
  • Preferably, the article to be packaged is a part or device utilized in office equipment and OA equipment; and the article to be packaged is selected from the group including containers containing toner, containers containing developing agent, photoconductors, process cartridges, and complex units of a developer and a toner collector.
  • FIG. 1 shows a packaging material of gas-bag type according to the present invention, in which the packaging material is at the stage where gas begins to enter into it starting from an approximately sheet-like condition without gas inside the material. In the packaging material of gas-bag type, eight pieces of flexible tube-like bodies 1 to 8 are disposed in parallel and connected by connecting portions 9 to 15. Obviously, the number of passages 9 a to 15 a may be greater than or less than eight. Connecting portions 9 to 15 are flexible such that they are bendable the to back side and front side; thus tube-like bodies 1 to 8 are bendable to the back side and front side at connecting portions 9 to 15.
  • Preferably, the exemplary packaging material of gas-bag type is prepared by forming adhered areas and non-adhered areas of two flexible sheet materials in a partially laminated fashion. The non-adhered areas correspond to inflatable areas by injecting gas, thereby forming flexible tube-like bodies 1 to 8. In connecting portions 9 to 15, gas passages 9 a to 15 a are formed, which correspond to the non-adhered areas. Passages 9 a to 15 a direct gas injected from gas entrance 17 provided at a tube-like body (6 in FIG. 1) into the other tube-like bodies 1 to 5, 7, and 8, and to exhaust the gas out of gas entrance 17 through tube-like bodies 1 to 5, 7, and 8.
  • The adhered areas correspond to connected portions 9 b to 15 b of connecting portions 9 to 15, sealing portions 19 and 20 at both ends in the axial direction of tube-like bodies 1 to 8, and sealing portions 23 and 25 at both right and left sides of the packaging material.
  • As shown in FIG. 3, the exemplary packaging material of gas-bag type is prepared from front and back sheets of two flexible materials. Front sheet material 29 is a sheet having a concave-convex surface, which performs to fix the packaged parts or devices of office equipment or OA equipment on the surface. Back sheet material 31 is a transparent sheet, which allows the direct observation as to the packaged conditions or abnormality as to easily deformable or breakable portions of the parts or devices, and immediate determination as to the way to remove the parts or devices.
  • Preferably, the front sheet material 29 having a concave-convex surface is of laminated construction of resin film sheet and divided-assigned sheet, and the resin film sheet is formed from three layers of polyethylene, polyamide, and polyethylene. Preferably, the sheet of transparent resin as well as the sheet having a concave-convex surface have an oxygen-gas permeability of 3 cc/m2/24 hours or less; thereby the exemplary packaging material of gas-bag type can maintain the performance for a long period while preventing leakage of injected gas.
  • In the packaging material of gas-bag type, partial areas swell when gas is injected, wherein multiple flexible tube-like bodies 1 to 8 are formed in parallel and connected by connecting portions 9 to 15. Parts or devices of office equipment or OA equipment to be packaged are disposed on the packaging material, and the connecting portions 9 to 15 are bent toward the parts or devices to form a circle of the packaging material as shown in FIG. 2A thereby wrapping the parts or devices; then sealing portions 23 and 25 at both ends of right and left sides are connected to each other; thereby the parts or devices may be packaged.
  • Fastener 27 is provided at sealing portions 23 and 25 for connecting, separating, and re-connecting the sealing portions 23 and 25; the fastener may be selected from hook, pressure-sensitive adhesive, chuck, magic Tape®, and the like. Tube-like bodies 1 to 8 possess multiple nodes 1 c to 8 c that exhibit a relatively large inflation compared to the other portions. Nodes 1C to 8 c firmly fix the packaged parts or devices. Preferably, two or more tube-like bodies 1 to 8 are longer than the packaged parts or devices; thereby damage of packaged parts or devices may be prevented as a result of an accidental drop, for example.
  • In the exemplary packaging material of gas-bag type, tube-like bodies 1 to 8 are flexible so as to be bendable in the axial direction. In addition, cut portions 33 are provided at connecting portion 11 between tube-like bodies 3 and 4, at connecting portion 14 between tube-like bodies 6 and 7, and at connecting portion 15 between tube-like bodies 7 and 8. Therefore, tube-like body 4 for example can be bent to any directions of front side and back side apart from the adjacent tube-like bodies 3 and 5, and tube-like body 7 for example can be bent to any directions of front side and back side apart from the adjacent tube-like bodies 6 and 8. Connecting portions 11, 12, 14, and 15 are flexible and can be bent to any directions of front side and back side as described above. As a result, the exemplary packaging material of gas-bag type can form a boat-like or a rectangular concave space 35 with tube-like bodies 5 and 6 as the bottom portion, as shown schematically in cross-sectional view of FIG. 2B and entire constructive view of FIG. 3. The parts or devices of office equipment or OA equipment can be housed in the concave space 35 and be packaged firmly in the packaging material.
  • In order to form the boat-like or rectangular concave space 35 as shown in FIG. 2B and FIG. 3, the packaging material is bent at connecting portions 11, 12, 14, and 15 so as to form both side walls from tube-like bodies 4 and 7, and the axial ends of tube-like bodies 4 and 7 are engaged by means of attachable-detachable engaging portions 37 and 39 in a fastener mechanism. In this example, tube-like bodies 1, 2, 3, and 8, which are not employed directly to the form boat-like or rectangular concave space 35, cover the space 35 after parts or devices of office equipment or OA equipment are housed into the space 35. Accordingly, the attachable-detachable engaging portion 27 is provided at the both ends of tube-like bodies 1 to 8 in a fastener mechanism.
  • After the usage of the material, the exemplary packaging material of gas-bag type can be rendered to an approximately planar condition without concave space 35 by releasing the attachable-detachable engaging portions 37 and 39, and further, can be rendered to a thinner sheet-like body by evacuating gas from gas entrance 17. The selection as to the level of volume reduction can be optionally conducted.
  • In the explanation described above, concave space 35 is formed using tube-like bodies 4 and 7 as the side wall and tube-like bodies 5 and 6 as the bottom portion; the side wall and bottom portion may be formed with tube-like bodies other than the ones selected in the exemplary tube-like bodies.
  • Further, the exemplary packaging material of gas-bag type includes laminating regions 41 at around tip of cut portions 33 of tube-like bodies 4 and 7 in the direction perpendicular to the cut portions 33. Laminating regions 41 make the bending of tube-like bodies 4 and 7 easier to form both of the side walls.
  • In the exemplary packaging material of gas-bag type, cut portions 33 of tube-like bodies 4 and 7 may be replaced by tearable perforated lines. The tearable perforated lines may be provided around laminating regions 41 provided in the direction perpendicular to the cut portions 33. The example shown in FIG. 1 indicates the condition cut through a perforated line at the lower edges of tube-like bodies 4 and 7.
  • Preferably, gas entrance 17 is provided at an axial edge of one of tube-like bodies 1 to 8 at a location that does not disturb the packaging.
  • The packaging material of gas-bag type according to the present invention may package articles firmly, may afford less risk to damage packaged articles even when the packaged articles are dropped accidentally, and may represent less possibility for the packaged articles to slip off; therefore the articles packaged by the packaging material of gas-bag type according to the present invention may be transported and stored without additional packaging boxes.
  • In order to assure the advantage, preferably, a gripping portion 43 is provided to one of tube-like bodies 1 to 8. The gripping portion 43 may be fixed to the tube-like body or be formed in a detachable fashion.
  • Preferably, the friction between sheet material 31 having a concave-convex surface and parts or devices of office equipment or OA equipment is larger than the friction between sheet material 29 of transparent resin and the parts or devices; thereby the possibility that the packaged articles slip out of the packaging material of the present invention can be reduced still further. Preferably, the friction between sheet material 31 having a concave-convex surface and the parts or devices is 3 times to 10 times, more preferably 5 times to 7 times the friction between sheet material 29 of transparent resin and the parts or devices. Excessively high friction leads to difficulty in taking out the parts or devices, and on the other hand, excessively low friction leads to a lower ability for sustaining parts or devices.
  • In the packaging material of gas-bag type according to the present invention, preferably, the diameter of the tube-like bodies is 2 cm to 10 cm, more preferably is 4 cm to 6 cm. When the diameter of the tube-like bodies is less than 2 cm, the injection and discharge of gas tends to be difficult, and on the other hand, when the diameter of the tube-like bodies is more than 10 cm, the ability for sustaining parts or devices is likely to be insufficient.
  • The width of connecting portion 9 to 15 is preferably 0.5 cm to 3 cm, more preferably is 1 cm to 2 cm. When the width of connecting portion is less than 0.5 cm, the injection and discharge of gas tends to be difficult, and on the other hand, when the width of connecting portion is more than 3 cm, the ability for sustaining parts or devices is likely to be insufficient.
  • The pressure of the inner gas injected into tube-like bodies 1 to 8 is preferably 6 hPa to 9 hPa, more preferably is 7 hPa to 8 hPa. In order to inject gas with a pressure in the range, the pressured air from a compressor, booster and the like are preferably utilized. Excessively low pressure of the gas leads to insufficient protection from shock or impact, whereas excessively high pressure of gas may lead to slip out of parts or devices and also breakage of the tube-like bodies. The type of gas that may be injected into tube-like bodies 1 to 8 is not particularly limited, preferably the selected gas is air or nitrogen gas, more preferably nitrogen gas. The nitrogen gas injected into tube-like bodies 1 to 8 can extend the swelled period to 2 to 3 times that of air. This advantage may possibly compensate for the disadvantages that the cost of nitrogen gas is considerably higher than the cost of air and also the processing places to inject nitrogen gas are limited.
  • FIG. 5 shows a condition that a PCU (processor control unit) is sustained in horizontal direction. Projections of PCU may be protected by somewhat elongating the horizontal length of the packaging material.
  • (Process for Producing Packaging Material of Gas-Bag Type)
  • In the process for producing a packaging material, the packaging material of gas-bag type according to the present invention may be produced.
  • The process includes laminating partially the front sheet and the back sheet to form adhered areas which correspond to the connecting portions and sealing portions at margin of the packaging material, and non-adhered areas which correspond to the tube-like bodies and gas passages communicating the tube-like bodies, and swelling the non-adhered areas to form tube-like bodies and gas passages communicating the tube-like bodies by injecting inner gas from a gas entrance.
  • In the partial laminating, two sheets of a front sheet and a back sheet are partially laminated to form adhered regions and non-adhered regions. The adhesion may be performed by thermal fusion of the two sheets or by adhesive bonding. The adhered regions yield the portions of connecting portions, and sealing portions at margin of the packaging material such as at the edges of the packaging material along the tube-like bodies, and the axial edges of the tube-like bodies, and also additional adhered areas at the end portion of the tube-like bodies if necessary.
  • In the inflating, non-adhered areas are inflated by injecting gas to form tube-like bodies and gas passages communicating with the tube-like bodies. Preferably, the pressure of the gas injected into the tube-like bodies is 6 hPa to 9 hPa, and the gas is air or nitrogen gas, more preferably, the gas is nitrogen gas.
  • The packaging material of gas-bag type according to the present invention may afford various effects, namely, the assembly of the packaging material and the packaging process are relatively simple and the operating periods are relatively short; various parts or devices such as containers of developing agent, cartridges with complicated construction, and parts with delicate properties may be firmly fixed in the packaging material since the packaging material is properly flexible, resilient, and hardly slippery; the volume of packaged articles is relatively small; separation or dropping of articles from the packaging material may be effectively prevented; the packaged articles may display higher impact resistance; transportation is relatively easy; decomposition of the packaged articles is relatively easy; the packaging material may be repeatedly utilized in decomposition and packaging; volume reduction may be conducted in two steps; and the cost of the packaging material is lower even with adaptability of recycle and reuse.
  • Further, articles may be protected without packaging boxes or other packaging materials, and the parts of packaging materials may be reduced, resulting in lower cost for packaging; the production of the packaging material is relatively simple, thus it is adapted to automatic production; the resulting packaging material may require less space to transport and to store, since the sheets are stackable.
  • Further, the partially transparent construction allows the observation as to the packaged conditions or abnormality as to easily deformable or breakable portions of the parts or devices, and immediate determination as to the way to take out the parts or devices; the packaged condition reduces the volume by decomposing into a flat condition; then further reduces the volume by discharging the gas; therefore, the level of volume reduction may be selected by considering the frequency of usages, the operating period for package, the space needed for working and the like; the sheet-like packaging material in the degassing condition allows for folding of the packaging material, resulting in efficient transportation and storage; the resilience of the packaging material may prevent damage to themselves such as pinhole, scratch, and breakage.

Claims (24)

  1. 1. A process for packaging an article, by means of a packaging material of gas-bag type comprising tube-like bodies and connecting portions, comprising:
    disposing an article to be packaged on the packaging material,
    bending the tube-like bodies toward the article to be packaged, and
    connecting at least one of the connecting portions and tube-like bodies,
    wherein the tube-like bodies are able to swell by being injected inner gas, the connecting portions connect the tube-like bodies in parallel, the tube-like bodies are bendable so as to wrap an article to be packaged, and the packaging material is formed from substantially flat two sheets of one front sheet and one back sheet in a condition that the inner gas is substantially evacuated from the tube-like bodies.
  2. 2. The process for packaging an article according to claim 1, wherein the packaging material is bendable to at least one of front side and back side of the packaging material in substantially perpendicular directions to the axis of the tube-like bodies.
  3. 3. The process for packaging an article according to claim 1, wherein the packaging material comprises adhered areas, non-adhered areas, and a gas entrance, the non-adhered areas comprise non-adhesion between the front sheet and the back sheet and yield the portions of the tube-like bodies and gas passages communicating the tube-like bodies, and the adhered areas comprise adhesion between the front sheet and the back sheet and yield the portions of the connecting portions and sealing portions at margin of the packaging material.
  4. 4. The process for packaging an article according to claim 3, wherein each of the gas passages is provided at a part of each connecting portion, and at least a part of connecting portions comprises at least one connectable portion.
  5. 5. The process for packaging an article according to claim 1, wherein each tube-like body comprises nodes at which portion the tube-like body swells larger compared to the other portion of the tube-like body.
  6. 6. The process for packaging an article according to claim 1, wherein one sheet among the front sheet and the back sheet is a transparent resin sheet, and the other sheet among the front sheet and the back sheet comprises a concave-convex surface.
  7. 7. The process for packaging an article according to claim 6, wherein the sheet comprising a concave-convex surface comprises a laminated construction of a resin film sheet and a divided-assigned sheet.
  8. 8. The process for packaging an article according to claim 7, wherein the resin film sheet is formed from three layers of polyethylene film, polyamide film, and polyethylene film.
  9. 9. The process for packaging an article according to claim 6, wherein both of the transparent resin sheet and the sheet comprising a concave-convex surface have an oxygen-gas permeability of 3 cc/m2/24 hours or less.
  10. 10. The process for packaging an article according to claim 1, wherein at least a part of connecting portions comprises at least one tearable perforated line in parallel to the axial of tube-like bodies, each axis of the tube-like bodies is bendable to at least one of front side and back side of the packaging material, and at least one end portion of the tube-like bodies comprises a connectable portion.
  11. 11. The process for packaging an article according to claim 1, wherein at least a part of connecting portions comprises at least one cut line in parallel to the axial of tube-like bodies, each axis of the tube-like bodies is bendable to at least one of front side and back side of the packaging material, and at least one end portion of the tube-like bodies comprises a connectable portion.
  12. 12. The process for packaging an article according to claim 4, wherein the tube-like bodies are possible to attach and detach each other repeatedly at the connectable portion.
  13. 13. The process for packaging an article according to claim 1, wherein at least a part of tube-like bodies comprises at least one additional adhered area at the end portion of the tube-like bodies.
  14. 14. The process for packaging an article according to claim 13, wherein the at least one additional adhered area at the end portion of the tube-like bodies comprises at least one tearable perforated line.
  15. 15. The process for packaging an article according to claim 1, wherein the gas entrance is provided to one of tube-like bodies at the end portion.
  16. 16. The process for packaging an article according to claim 1, wherein an elongated gripping portion is provided to the packaging material substantially in parallel to the axis of the tube-like bodies.
  17. 17. The process for packaging an article according to claim 1, wherein the friction between the sheet comprising a concave-convex surface and the packaged article is larger than the friction between the transparent resin sheet and the packaged article.
  18. 18. The process for packaging an article according to claim 1, wherein the pressure of the inner gas injected into the tube-like bodies is 6 hPa to 9 hPa.
  19. 19. The process for packaging an article according to claim 1, wherein the inner gas is nitrogen gas.
  20. 20. The process for packaging an article according to claim 1, wherein the width of the connecting portions that connect the tube-like bodies in parallel is 0.5 cm to 3 cm.
  21. 21. The process for packaging an article according to claim 1, wherein the diameter of the tube-like bodies is 2 cm to 10 cm.
  22. 22. The process for packaging an article according to claim 1, wherein the number of the tube-like bodies is 2 or more.
  23. 23. The process for packaging an article according to claim 1, wherein the article to be packaged is at least one of parts and devices utilized in office equipment and OA equipment.
  24. 24. The process for packaging an article according to claim 1, wherein the article to be packaged is selected from the group consisting of containers comprising toner, containers comprising developing agent, photoconductors, process cartridges, and complex units of a developer and a toner collector.
US12765509 2004-01-08 2010-04-22 Packaging material of gas-bag type, process for packaging article, and process for producing packaging material Abandoned US20100199610A1 (en)

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JP2004-002794 2004-01-08
JP2004002794A JP4512375B2 (en) 2004-01-08 2004-01-08 Gas bag Shikitsutsumi material and packaging method of office equipment members and office equipment supplies
PCT/JP2005/000324 WO2005066041A1 (en) 2004-01-08 2005-01-06 Packaging material of gas-bag type, process for packaging article, and process for producing packaging material
US11482816 US7726484B2 (en) 2004-01-08 2006-07-10 Packaging material of gas-bag type, process for packaging article, and process for producing packaging material
US12765509 US20100199610A1 (en) 2004-01-08 2010-04-22 Packaging material of gas-bag type, process for packaging article, and process for producing packaging material

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EP1701894B1 (en) 2012-03-28 grant
KR100817965B1 (en) 2008-03-31 grant
CN1938201B (en) 2012-12-19 grant
JP4512375B2 (en) 2010-07-28 grant
US20070017844A1 (en) 2007-01-25 application
KR20060103349A (en) 2006-09-28 application
US7726484B2 (en) 2010-06-01 grant
EP1701894A1 (en) 2006-09-20 application
CN1938201A (en) 2007-03-28 application
WO2005066041A1 (en) 2005-07-21 application
EP1701894A4 (en) 2009-11-04 application
JP2005193954A (en) 2005-07-21 application

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