WO2005066032A1 - 密封袋の通気路の構造及び密封袋及び密封袋の製造方法 - Google Patents
密封袋の通気路の構造及び密封袋及び密封袋の製造方法 Download PDFInfo
- Publication number
- WO2005066032A1 WO2005066032A1 PCT/JP2004/016566 JP2004016566W WO2005066032A1 WO 2005066032 A1 WO2005066032 A1 WO 2005066032A1 JP 2004016566 W JP2004016566 W JP 2004016566W WO 2005066032 A1 WO2005066032 A1 WO 2005066032A1
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- WIPO (PCT)
- Prior art keywords
- bag
- sheet
- valve body
- sealing
- seal
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- 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
- B65D81/18—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 providing specific environment for contents, e.g. temperature above or below ambient
- B65D81/20—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 providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
- B65D81/2007—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 providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
- B65D81/2038—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 providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum with means for establishing or improving vacuum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2155/00—Flexible containers made from webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2155/00—Flexible containers made from webs
- B31B2155/002—Flexible containers made from webs by joining superimposed webs, e.g. with separate bottom webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2160/00—Shape of flexible containers
- B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/74—Auxiliary operations
- B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
- B31B70/84—Forming or attaching means for filling or dispensing contents, e.g. valves or spouts
- B31B70/85—Applying patches or flexible valve inserts, e.g. applying film-like valves
Definitions
- the present invention relates to a structure of an air passage of a sealed bag, a sealed bag, and a method of manufacturing the sealed bag.
- the present invention relates to a sealed bag capable of hermetically sealing the inside.
- Patent Document 1 Japanese Patent Application Laid-Open No. 9-309544
- Patent Document 2 US Patent No. 6116781
- the sealing portion can be hermetically sealed, and various gases such as air existing in the sealing portion are discharged to the outside of the bag and maintained in that state, or various gases are supplied to the sealing portion.
- various gases such as air existing in the sealing portion are discharged to the outside of the bag and maintained in that state, or various gases are supplied to the sealing portion.
- the sealing portion and the outside of the bag are connected so as to be able to ventilate.
- the gas flow passage space which is the space through which the gas passes, is opened and closed.
- a sealed bag that allows the passage of airflow in one direction and blocks the airflow in the other direction is used.
- sealed bag As one type of the above-mentioned sealed bag, a required portion of a flexible resin sheet is bonded with a heat seal or the like to form sealed portions 102 and 202 having a space surrounded by the sheet.
- Compressed bags 101 and 201 which are bodies and are capable of discharging gas existing in the sealed portions 102 and 202 to the outside of the bag and maintaining the state, are widely used.
- the compression bags 101, 201 are provided with openings 103, 203 for allowing articles M to be taken in and out of the sealing portions 102, 202.
- the openings 103 and 203 are provided with closing means 104 and 204 such as a chuck for closing the openings 103 and 203 in a sealed state.
- FIG. 1 A simplified illustration of this is a compression bag 101 having a check valve 105 as shown in FIG.
- the check valve 105 used in the compression bag 101 has a flexible resin outer cylinder portion sheet 107a, so that the space of the sealing portion 102 and the outside of the compression bag 101 are continuous.
- the outer cylinder 107 has a flat cylindrical shape and the outer cylinder 107 is provided inside the outer cylinder 107 as shown in FIG.
- a valve sheet 106 made of a flexible resin sheet.
- valve body sheet 106 allows the passage of the airflow F1 from the sealing portion 102 to the outside of the compression bag 101, and blocks the airflow F2 in the opposite direction. Thereby, the degassing state is maintained even after the sealing part 102 is degassed.
- the air in the sealed portion 102 is discharged out of the bag through the check valve 105 in a state where the closing means 104 is closed. Can be maintained.
- the compression bag 101 is suitable as a storage bag for clothes and the like and an organizer bag for travel.
- the check valve 105 is manufactured separately from the bag sheets 102a and 102b constituting the sealing portion 102 and is incorporated when forming the sealing portion 102 later.
- the process of manufacturing 105 and the process of assembling it into the sealing part 102 are required, respectively, which complicates the manufacturing process of the compression bag 101, and for this, a special manufacturing device must be used. For the reasons described above, the manufacturing cost also increases.
- a heat seal 108 as shown in FIG. 16B is made, and the bag sheets 102a, The outer cylinder part 107 of the check valve 105 is bonded to the outer cylinder part 107 of the check valve 105.
- the heat seal 108 is pressed with a mold that also heats both sides of the bag sheets 102a and 102b while the check valve 105 is sandwiched between the bag sheets 102a and 102b so that the check valve 105 is traversed. Formed.
- the outer cylindrical portion 107 A coating 106b is applied to a surface 106a on the side opposite to the inner surface of the metal to prevent the surface 106a from being melted by heat at the time of heat sealing.
- the inner surface of the outer cylinder portion sheet 107a in the outer cylinder portion 107 is affected by the heat at the time of heat sealing and the pressure of the mold for performing the heat sealing. The slight melting actually causes the outer cylinder part 107 and the valve body sheet 106 to be lightly heat-sealed. (Light heat seal 109).
- this light heat seal 109 is small enough to come off with a weak external force, when the compression bag 101 is used for the first time, the light heat seal 109 comes off, so that the outer cylinder portion 107 and the valve body sheet 106 are separated. Until the check valve 105 is opened away, the internal pressure of the sealing part 102 increases, so that the resistance during degassing is large. There is also a risk that the bag sheets 102a and 102b of the sealing portion 102 may burst. These were particularly noticeable problems when degassing by pressing the sealing portion 102 by hand.
- a compression bag 201 there is one related to the invention of US Pat. No. 6,167,781, as shown in FIG. This is achieved by sandwiching the intermediate sheet 206 between two opposing bag sheets 202a and 202b, and using a check valve 205 as an air passage for deaeration between the bag sheets 202a and 202b and the intermediate sheet 206. It was formed.
- the check valve 205 performs a check operation when the bag sheets 202a and 202b and the intermediate sheet 206 are in close contact with each other.
- the check valve 205 is integrally formed from the beginning, and unlike the compression bag 101, there is an advantage that it can be manufactured in one step. Further, there is no problem that the light heat seal 109 is formed when the separate check valve 105 is incorporated as described above.
- the compression bag 201 Since the compression bag 201 has only the intermediate sheet 206 sandwiched between the bag sheets 202a and 202b, the check action is incomplete, and the degassing state of the sealing portion 202 is ensured. It was not possible to keep them.
- the invention of the present application can be manufactured in one step, so that the manufacturing cost can be reduced, the degassed state of the sealed portion can be reliably maintained, and the resistance is low even when degassed by hand. It is an object of the present invention to provide a compressed bag manufacturing method and a compressed bag. Disclosure of the invention
- the invention described in claim 1 of the present application is used for a sealing bag 1 that can seal the sealing portion 2 in an air-tight state, and the gas present in the sealing portion 2
- the airflow passage space is the space through which the gas passes. a, open and closed, allows airflow in one direction and allows airflow in the other direction to be blocked.
- At least one flexible resin valve sheet 31 having a movable portion 31c other than the bonding portion 31b is movable, and a bag to which the valve sheet 31 is bonded as described above. It has a spacing member 32 arranged between the sheets 11 and 12 and the valve body sheet 31.
- the ventilation path 3 is provided with the above-mentioned bag sheets 11 and 12, the valve body sheet 31, and the spacing member 32.
- the air passage 3 is defined by a pair of air passage side seals 33 adhered to the body, and one end of the air passage 3 is sealed.
- the other end of part 2 is electrically connected to the outside of the bag, and the above-described air passage side seal 33 is formed along the forward air flow F1, which is a direction in which air is allowed to pass through the air passage.
- the bonding portion 31b of the valve body sheet 31 is arranged on the upstream side in the forward airflow F1, and the movable portion 31c is arranged on the downstream side.
- the surface facing the inner surfaces 11a and 12a of the bag sheets 11 and 12 to which the valve sheet 31 to which the movable portion 31c belongs is bonded is a separation surface 31d.
- the surface opposite to 31d is a contact surface 31a, and the spacing member 32 is disposed between the inner surfaces 11a, 12a of the bag sheets 11, 12 and the separation surface 31d of the valve body sheet 31.
- the material can hold a space of 32 minutes, and the bag sheet 11, 12 or the other, which faces the valve body sheet 31 and the contact surface 31a of the valve body sheet 31, with respect to the forward airflow F1.
- the airflow passage space 3a is opened by separating from the valve body sheet 31 on the side, and the valve body sheet 31 and the corresponding valve are provided for the airflow F2 in the reverse direction which is opposite to the forward direction.
- the airtight space is characterized in that the bag sheets 11, 12 or the valve body sheet 31 on the other side, which faces the contact surface 31a of the body sheet 31, are in close contact with each other and the air flow passage space 3a is closed.
- the spacing member 32 is selected from a thread, a nonwoven fabric, a mesh, a woven fabric, a paper, and a non-breathable resin sheet.
- the invention according to claim 3 of the present application uses two valve body sheets 31, of which the front side valve body sheet 31 x is adhered to the front bag sheet 11 and the rear side
- the side valve body sheet 31y is adhered to the rear bag sheet 12, and the above-mentioned spacing member 32 is provided between the front bag sheet 11 and the front side valve sheet 31x at least one, and the rear bag sheet 12 At least one is disposed between the rear-side valve body sheet 3 ly and the front-side spacing member 32 x disposed on the front-side valve body sheet 31 x side, and the rear-side valve body sheet 31 y side
- the rear-surface-side spacing member 32y arranged at a position shifted from the upstream side and the downstream side with respect to the forward airflow F1 as a reference. Provide the structure of the air passage of the sealed bag.
- the spacing member 32 sets the spacing between the inner surfaces 11a, 12a of the bag sheets 11, 12 and the separation surface 31d of the valve sheet 31.
- the spacing member 32 is a folded sheet shape, and is divided into a plurality of parts with the fold 32c as a boundary.
- the above-mentioned divided portions 32a, 32b are in contact with the inner surfaces 11a, 12a of the bag sheets 11, 12, and the other portions 32b, 32a are in contact with the separation surface 31d of the valve body sheet 31.
- the structure of the air passage of the sealed bag according to claim 4 is provided.
- the sealing portion 2 can be hermetically sealed, and the gas present in the sealing portion 2 is discharged to the outside of the bag, and the state is maintained, or A gas passage 3 is provided adjacent to the sealing portion 2 for filling the gas into the sealing portion 2 and maintaining the state, and connecting the sealing portion 2 and the outside of the bag so as to be able to ventilate.
- the air flow passage space 3a which is a space through which the gas passes, in the ventilation path 3 is opened and closed to allow the passage of the air flow in one direction and the other direction.
- a sealed bag capable of blocking the air flow of the above, between the flexible resin bag sheets 11 and 12 arranged opposite to each other and the above bag sheets 11 and 12, and At least a part of it is arranged in the ventilation channel 3, and a part of it is And at least one, is bonded at the bonded portion 3 lb, enabling the movable part 31c other than the adhesion portion 31b is moved Between the at least one flexible resin-made valve body sheet 31, the bag sheets 11, 12 to which the valve body sheet 31 is bonded as described above, and the valve body sheet 31. And at least a part thereof is provided with a spacing member 32 arranged in the ventilation path 3, and the ventilation path 3 is formed by the bag sheets 11 and 12, the valve body sheet 31, and the spacing member 32.
- One end of the air passage 3 is connected to the sealing portion 2 and the other end is connected to the outside of the bag.
- the bonding portion 31b of the valve sheet 31 is connected to the forward airflow F1.
- the movable part 31c is arranged on the upstream side in the above, and the movable part 31c is arranged on the downstream side in the same.
- the surface of the bag sheets 11, 12 to which the valve body sheet 31 to which the movable portion 31c belongs is bonded to the inner surface 11a, 12a of the bag sheet 11, 12 on the side facing the inner surface 11a, 12a is a separation surface 31d, and the separation surface 31d is opposite to the separation surface 31d.
- the surface is a contact surface 31a, and the spacing member 32 is disposed between the inner surfaces 11a, 12a of the bag sheets 11, 12 and the separation surface 31d of the valve body sheet 31, whereby the bag is closed.
- At least a portion between the inner surfaces 11a and 12a of the seats 11 and 12 and the separation surface 31d of the valve body sheet 31 can hold an interval of 32 minutes between the interval maintaining members, and the airflow F1 in the forward direction can be maintained.
- the valve body sheet 31 and the valve body sheet 31 are in close contact with each other with respect to the airflow F2 in the reverse direction which is opposite to the forward direction.
- the bag sheets 11, 12 or is a valve body seat 31 on the other side in close contact the air flow passing space 3a provides a sealed bag, characterized in that it is intended to be closed.
- the sealing portion 2 is a sealing portion partitioning seal 1 extending in the left-right direction, wherein at least the bag sheets 11 and 12 are adhered to a body. 4 and a bag side seal 16 that defines the left and right ends of the sealing bag 1, the upper part of the sealing section partitioning seal 14, and the air passage 3 is provided with the sealing section partitioning seal 14.
- the sealing section partition seal 14 is provided for the conductive part between the above-mentioned sealing part 2 and the air passage 3 7.
- the ventilation path 3 is configured such that the upper end is electrically connected to the sealing portion 2, the lower end coincides with the lower end of the sealing bag 1, and
- the sealing portion 2 is formed by bonding at least the bag sheets 11 and 12 to a body, and includes a bottom seal 15 defining a lower end of the sealing bag 1 and a sealing bag. 1, the air passage 3 of the portion defined by the bag side seal 16 defining the left and right ends, and the air passage 3 on which at least the bag sheets 11 and 12 are adhered to the body.
- the bottom sealing section 14 is a portion except for the lower side of the sealing section section seal 14. Shall not be provided for the conductive part between the sealed part 2 and the outside of the bag. It characterized, to provide a sealed bag according to ⁇ Motomeko 6.
- the sealing portion 2 can be hermetically sealed, the gas present in the sealing portion 2 is discharged to the outside of the bag, and the state is maintained, or A gas passage 3 is provided adjacent to the sealing portion 2 for filling the gas into the sealing portion 2 and maintaining the state, and connecting the sealing portion 2 and the outside of the bag so as to be able to ventilate.
- the air flow passage space 3a which is a space through which the gas passes, in the ventilation path 3 is opened and closed to allow the passage of the air flow in one direction and the other direction.
- the flexible bag sheets 11 and 12 that are supplied in the longitudinal direction without interruption and the resin bags that are supplied in the longitudinal direction without interruption Flexible resin sheet, which is made from bag sheets 11 and 12 Also, at least one valve body sheet 31 having a small width dimension, which is a dimension in the short direction, and a flexible material that is supplied without breaks in the longitudinal direction and has a width dimension larger than that of the bag sheets 11, 12.
- the force S is small, and the spacing member 32 is used.
- At least one of the front bag sheet 11 and the rear bag sheet 12 is provided with the valve sheet 31 at a portion where the ventilation path 3 is formed.
- valve body adhesive seal SI, 31b on a part of the upstream side in the forward airflow F1 in a direction in which the airbag 3 is allowed to pass through, and the front bag sheet 11 and the rear bag sheet. 12 corresponds to the valve seat 31 and the spacing member 32.
- articles are taken in and out of the part where the sealing part 2 is connected to the ventilation path 3 and the sealing part 2 where at least the bag sheets 11 and 12 are adhered to the body.
- the above-mentioned side seals S3, 16 are formed on the sides that are both ends in the longitudinal direction in each of the sealed bags 1, and Sectional seal S2b, S41b, 14 Force formed so as to extend in the longitudinal direction.
- One side in the short direction is sandwiched between the sealing section 2 and the other side, with the sealing section dividing seals S2b, S41b, 14 sandwiched therebetween.
- a part is partitioned into a ventilation path forming part 30, and the above-mentioned ventilation path side seals S 42, 33 are formed in the above-mentioned ventilation path forming part 30.
- the method for producing a sealed bag according to claim 10 wherein the end near the sealing portion 2 is formed continuously with the sealing portion section seals S2b, S41b, 14.
- FIG. 1 (A) is a plan view showing a compression bag which is an example of an embodiment of the present invention
- FIGS. 1 (B) and 1 (C) show A—A of FIG. 1 (A). It is an end view as viewed in the direction of arrow A, and is exaggerated in the front-rear direction.
- FIG. 2 (A) is an end view taken along the arrow B-B of FIG. 1 (A), and FIG. 2 (A) corresponds to the state shown in FIG. 1 (B). (C) corresponds to the state shown in FIG. 1 (C).
- FIG. 3 is an exploded perspective view showing a configuration of a compression bag according to an embodiment of the present invention.
- FIGS. 4 (A) and 4 (B) are each an end view showing an air passage of a compression bag in another example of the embodiment of the present invention.
- FIG. 5 (A) is an enlarged plan view of a main part showing a ventilation path of a compression bag in another example of the embodiment of the present invention
- FIG. 5 (B) is a CC arrow of FIG. 5 (A). It is an end view of vision.
- 6 (A) and 6 (B) are each an end view showing an air passage of a compression bag in another example of the embodiment of the present invention.
- 7 (A) and 7 (B) are explanatory views showing the configuration of a front sheet used in conjunction with the degassing bag shown in FIG. 6 (A).
- 8 (A) and 8 (B) are explanatory views of an air passage of a compression bag in another example of the embodiment of the present invention as viewed from an end face.
- FIG. 9 (A) is a plan view showing a compression bag which is another example of the embodiment of the present invention
- FIGS. 9 (B) and 9 (C) are views taken along line D-D in FIG. 9 (A). It is an end view taken in the direction of arrow D, and is drawn exaggeratingly in the front-rear direction.
- FIG. 10 is an end view taken along the line DD in FIG. 9 (A), showing the actual state of the state shown in FIG. 9 (C).
- FIG. 11 is a plan view showing a compression bag which is still another example of the embodiment of the present invention.
- FIG. 12 is a plan view showing a compression bag which is still another example of the embodiment of the present invention.
- FIGS. 13 (A) and 13 (B) are each an end view showing an air passage of a compression bag which is still another example of the embodiment of the present invention.
- FIG. 14 (A) is an explanatory view in end view showing an air passage of a compression bag which is still another example of the embodiment of the present invention
- FIG. FIG. 4 is an explanatory perspective view showing a spacing member to be provided.
- FIG. 15 (A) is an explanatory view in plan view showing a manufacturing process of a compression bag according to an example of the embodiment of the present invention
- FIG. 15 (B) is an explanatory view in front view.
- FIG. 16 (A) is a plan view showing a compression bag according to an example of a conventional embodiment
- FIG. 16 (B) is an end view taken along the line E-E in FIG. 16 (A).
- FIG. 17 is an exploded perspective view showing a configuration of a compression bag according to another example of the conventional embodiment.
- FIG. 18 (A) is a plan view of a compression bag in an example of an embodiment of the present invention subjected to an experiment
- FIGS. 18 (B) and (C) show commercially available compression bags as comparative objects. It is a top view.
- the compression bag 1 in the present example has, as constituent members, a bag sheet (a front bag sheet 11, a rear bag sheet 12) having a vertically long rectangular shape in the drawing, and a horizontally long rectangular bag in the drawing.
- Valve seat 31 front valve seat 31x, rear valve seat 31y
- a spacing member 32 front spacing member 32x, rear spacing member 32y
- Each of the sheets 11, 12, 31, and 32, which are the above constituent members, has flexibility. As shown in FIG. 15, long sheets that are continuous without any break in the longitudinal direction are used. Predetermined positions of 11, 12, 31, and 32 are cut after being bonded by heat sealing or the like, and formed as a bag body in which the sealing portion 2 and the air passage 3 are partitioned.
- resin sheets are used for the bag sheets 11 and 12 and the valve body sheet 31.
- a plurality of resin films for example, a plurality of polyethylene films are bonded and laminated.
- a sheet in which a plurality of resin films are laminated as described above is more general than a sheet made of a uniform material.
- a polyethylene film has a heat sealing property
- a nylon film does not have a heat sealing property, and therefore, when performing heat sealing as described below, the polyethylene films in a resin sheet are opposed to each other. There is a need.
- the outer portions of the compression bag 1 are constituted by the bag sheets 11 and 12 arranged opposite to each other.
- the sealing portion 2 is formed between the front bag sheet 11 and the rear bag sheet 12, and has a space in which the article M can be stored.
- the air passage 3 is continuous from the sealing portion 2 to the outside of the bag so that gas (air) passes when degassing from the space inside the sealing portion 2 to the outside of the bag.
- An airflow passage space 3a is formed.
- the sealing portion 2 of the present example is formed by bonding bag sheets 11 and 12 and a valve body sheet 31 to a body, as shown in FIG. 1 (B). Sealing extending in the left and right direction
- the upper part of the sealing section partition seal 14, which is defined by the section partition seal 14 and the bag side seal 16 that defines the left and right ends of the sealing bag 1, and the air passage 3 is provided with the above sealing section partition seal.
- the lower portion of the ventilation path forming portion 30 defined by 14 is further defined by a ventilation path side seal 33 described later.
- the sealing section partition seal 14 is not provided between the sealing section 2 and the ventilation path 3.
- the bottom seal 15 formed to define the lower end of the sealed bag 1 in this example is not provided in the portion of the ventilation path 3. Therefore, the space inside the sealed portion 2 and the airflow passage space 3a of the ventilation path 3 are communicated with each other, and gas (air) existing in the sealed portion 2 can be degassed to the outside of the bag.
- the sealing section partition seal 14 is located at the same position in the vertical direction of the drawing as the bonding section 3 lb, which is a seal bonding the bag sheets 11, 12 and the valve body sheet 31 as shown in the figure.
- the force formed by being overlapped may be formed so as to be shifted from the bonding portion 31b, as long as at least the front bag sheet 11 and the rear bag sheet 12 are integrally bonded.
- the upper end sides of the front bag sheet 11 and the rear bag sheet 12 are not bonded to each other and form an opening la.
- the article M can be put in and out of the sealing section 2 through the opening la.
- the opening la is provided with the closing means 4 so that the opening la can be closed in an airtight state.
- the closing means 4 of this example has a convex portion on one side of the bag sheets 11 and 12 and a concave portion on the other side, and the opening 21 is formed by fitting the convex portion and the concave portion.
- a resin chuck having a structure that can be closed is employed, but the closing means 4 is not limited to this, and various means can be used.
- the opening la may be bonded by heat sealing or the like, so that the opening la cannot be opened.
- the opening portion la may not be provided from the beginning, and only the passage portion 3 may allow the gas to pass therethrough.
- valve body sheet 31 is a lower portion of the compression bag 1 as shown in FIG. 1 (A), and a lower portion defined by the sealing section seal 14 described above. As shown in FIG. 1 (B), two valve body sheets 31 (31x, 31y) It is arranged between the front bag sheet 11 and the rear bag sheet 12.
- an airflow passage space 3a that is continuous from the space inside the sealing portion 2 to the outside of the compression bag 1 is opened at the time of degassing.
- the air flow passage space 3a is a space between the two valve body sheets 31 as shown in FIGS. 1B and 2A.
- the front bag sheet 11 and the rear bag sheet 12 are drawn far apart to facilitate understanding of the ventilation path 3.
- the back bag sheet 12 and the back bag sheet 12 are bonded together with the valve body sheet 31 and the spacing member 32 interposed therebetween.
- the valve body sheets 31 (31x, 31y) are close enough to contact each other. Only when the forward airflow F1, which is the airflow from the sealed portion 2 to the outside of the bag, passes, the valve body sheets 31 (31x, 31y) are separated from each other, and the airflow passage space 3a is opened.
- the ventilation path 3 has the sealing part 2 on the upper side, the lower end side of the compression bag 1 on the lower side, and the bag sheets 11 and 12, the valve body sheet 31, and the spacing member 32 on the left and right sides.
- the four sides are defined by two air passage side seals 33 formed in the vertical direction so as to be integrally adhered.
- the upper end is electrically connected to the sealing portion 2, and the lower end is connected to the lower end of the sealing bag 1. They coincided and were conducted outside the bag.
- the portion of the valve body sheet 31 that is bonded to the front bag sheet 11 and the rear bag sheet 12 is the bonding portion 31b.
- the bonding portion 31b is arranged on the upstream side of the valve body sheet 31 in the forward airflow F1, and in this example, the end portion of the valve body sheet 31 on the side of the sealing portion 2 (see FIG. 1 (A)).
- the front-side valve body sheet 31x is not bonded to the front-side bag sheet 11 except for the bonding portion 31b and the air passage-side side seal 33, and the rear-side valve body sheet 3ly is attached to the rear-side bag sheet 12. On the other hand, it is not bonded except for the bonding portion 3 lb and the ventilation path side seal 33.
- the downstream side of the valve sheet 31 in the airflow F1 in the forward direction from the bonding portion 31b (in this example, the opposite side to the sealing portion 2 and the lower side shown in FIG. 1A) is the movable portion. 31c.
- the movable part 31c is opened from the state where the airflow passage space 3a is opened and the forward airflow F1 can pass therethrough.
- the air flow passage space 3a can be moved in a range up to the closed state.
- valve body sheet 31 rises with respect to the front bag sheet 11 and the rear bag sheet 12 to which the valve body sheet 31 is bonded, and another valve body is formed.
- the airflow passage space 3a can be closed by closely contacting the seat 31 (for example, the rear valve body sheet 31y).
- the surface facing the inner surfaces 11a, 12a of the bag sheets 11, 12 to which the valve body sheet 31 to which the movable portion 31c belongs is bonded is a separation surface 31d.
- the formation part of the bonding part 31b is not limited to the end on the side of the sealing part 2 of the valve body sheet 31 as in this example, but is formed apart from the end of the valve body sheet 31. It is good. Therefore, portions other than the movable portion 31c that do not adhere to the bag sheets 11 and 12 may be provided to an extent that does not hinder degassing.
- the close contact of the valve body sheet 31 is caused by the deaeration of the sealing section 2 in the case of the compression bag 1 that uses the air in the sealing section 2 by deaeration. This is done by reducing the pressure inside. In other words, there is a pressure difference between the outside of the bag (positive pressure) and the inside of the sealing part 2 (negative pressure). From this pressure difference, as shown in FIG. At 31, a suction force P that is drawn toward the sealing part 2 on the negative pressure side acts. Since the valve body sheet 31 is made of a flexible resin, the valve body sheet 31 is easily deformed by the above-mentioned suction force, and the contact surfaces 31a of the valve body sheet 31 are brought into close contact with each other.
- the outside air does not flow back to the sealing portion 2 but always enters the dead end portion 3b in the form of a dead end between the bag sheets 11, 12 and the valve body sheet 31 and stagnates. Therefore, while the airflow passage space 3a is not closed, the airflow F2 in the opposite direction is The situation of continuing backflow to 2 cannot occur, and the airflow passage space 3a is surely closed.
- the inside of the sealed bag 2 is more converse than the outside of the bag.
- the pressure increases, and there is a pressure difference opposite to the above. Due to this pressure difference, the contact surfaces 31a of the valve sheet 31 adhere to each other in the same manner as described above, and at the same time, the sealing portion 2
- the gas filled inside the airbag always enters the dead end portion 3b without flowing backward to the outside of the bag, and stagnates, so that the airflow passage space 3a is securely closed.
- the forward airflow F1 which is the opposite direction to the above and flows out of the sealing portion 2 to the outside, pushes and spreads between the two valve body sheets 31 as shown in Fig. 1 (B). Then, the airflow passage space 3a is opened to flow.
- the resistance at the time of degassing is reduced. It can be as small as possible.
- the valve sheets 31 are lightly heat-sealed with each other due to the heat at the time of heat sealing and the pressure of the mold for performing the heat sealing, which has been a problem in the past. No extra force is required to remove this light heat seal when passing through the directional airflow F1. Therefore, in the present invention, when the sealing part 2 is pressed by hand and the air existing in the sealing part 2 is evacuated to the outside of the compression bag 1, a relatively weak person such as a child or an elderly person uses the air. Even in such cases, it is possible to degas lightly with almost no resistance. Also, it is impossible for the sealing portion 2 to burst.
- the separation surface 31d of the valve body sheet 31 opposite to the contact surface 31a has a characteristic that it is more difficult to adhere to the valve body sheet 31 than the contact surface 31a, so that the valve body sheet 31 is in contact with the valve body sheet 31.
- the valve body sheet 31 may be easily lifted with respect to the attached bag sheets 11 and 12 and the spacing member 32 described later.
- a resin film constituting the separating surface 31d may be made of a material which has a lower adhesion than other resin films. As shown in FIG. 4 (A), a matte finish is applied to the separating surface 31d to form irregularities, or as shown in FIG.
- the contact surface 31a is desirably made to have a characteristic that makes it easy to adhere, from the viewpoint of effectively closing the air passage 3.
- a resin film having better adhesion than other resin films that is, a material having good so-called blocking property, is applied to the resin film constituting the contact surface 31a.
- the valve body is arranged by disposing an inert liquid 5 such as silicone oil in such an amount as not to inhibit degassing on the contact surface 3 la.
- the sheets 31 are easily brought into close contact with each other, and the backflow of air in the ventilation path 3 is effectively prevented.
- the inert liquid 5 does not flow toward the sealed portion 2 so that the stored article M is not contaminated.
- the liquid sealing seal 6 is formed by heat sealing between the valve body sheets 31 closer to the sealing portion 2 than the inert liquid 5.
- the ventilation path 3 is provided with a spacing member 32 so as to overlap at least a part of the valve body sheet 31.
- the valve body sheet 31 is positioned so as to overlap with the valve body sheet 31 below the valve body sheet 31 shown in FIG. 1A, specifically, on the tip side of the bonding portion 31b of the valve body sheet 31. Sheet.
- the leading end of the spacing member 32 is connected to the 1Z2, 1Z2 of the movable portion 31c in the direction from the leading end (lower side in FIG. 1A) of the valve seat 31 to the base end (upper side). More desirably, it is located at a position on the tip side of the position of 3Z4.
- the spacing member 32 in the present example is provided within a range of 30 mm from the lower end side of the compression bag 1 toward the sealing portion 2, and the front end thereof coincides with the front end of the valve sheet 31.
- the present invention is not limited to this, and may be arranged so as to be shifted from the front end of the valve body sheet 31.
- the spacing member 32 is provided on the air passage side with respect to each of the bag sheets 11 and 12 and the valve body sheet 31 as shown in FIGS. It is adhered only by the position of the part seal 33. Therefore, the gap holding member 32 is not adhered anywhere except for the ventilation path side seal 33 of the ventilation path 3, and is in a state where it is merely sandwiched between the front bag sheet 11 or the rear bag sheet 12 and the valve body sheet 31.
- the airflow F1 in the forward direction from the sealed part 2 to the outside of the compression bag 1 can be passed without resistance so that the airflow F1 in the forward direction can be passed without resistance.
- the airflow passage space 3a is opened.
- valve body sheets 31 come into close contact with each other as shown in FIG. 2 (B).
- the spacing member 32 since the spacing member 32 is in a free state except for the ventilation path side seal 33, the valve body sheet 31 and the spacing member 32 contact each other as shown in FIG. In this state, the space between the bag sheets 11 and 12 and the spacing member 32 may be the dead end 3b.
- the spacing member 32 As the spacing member 32, a sheet that is thicker than the front and rear seats 11, 12 and the valve body sheet 31 is used. In the portion where the spacing member 32 is arranged, the front and rear seats 11 are used. , 12 and the valve body sheet 31, it is possible to maintain an interval corresponding to the distance holding member 32 (in this example, the thickness of the distance holding member 32). In other words, the distance between one of the valve body sheets 31 and the counterpart to which the one of the valve body sheets 31 is in close contact, such as the other valve body sheet 31 or the front and rear sheets 11, 12, is defined as the distance holding member. It can be reduced by the thickness of 32.
- valve body sheet 31 can more easily close the ventilation path 3, so that the backflow of air in the ventilation path 3 can be effectively prevented, and the degassing state of the sealing portion 2 can be maintained for a long time. Can be kept for a long time.
- the spacing member 32 has air permeability in order to reduce resistance when guiding air to a dead end portion 3b formed between the front bag sheet 11 or the rear bag sheet 12 and the valve body sheet 31.
- Non-woven fabrics, nets, woven fabrics and the like made of thermoplastic resin fibers having heat sealing properties, which are desirable to use in sheet form, can be exemplified.
- a material such as paper that does not have heat sealing properties can be used.
- a sheet made of a non-breathable resin or the like, similar to the front bag sheet 11, the rear bag sheet 12, and the valve body sheet 31, may be used.
- the spacing member 32 can also have a thread-like body force.
- a thread having heat-sealing property such as polyester resin fiber and the like, which also has heat-sealing properties, such as cotton and cotton. It is also possible to use a fibrous body having a high fiber strength.
- the thread-like body in the present invention be implemented as a long body having a numerical value obtained by dividing a longitudinal dimension in a cross-sectional shape by a lateral dimension is 1 or more and 2 or less.
- the thread used as the spacing member 32 shown in FIGS. 9 and 10 is a general thread and has a substantially perfect cross section. Therefore, the above value is 1.
- the bag sheets 11, 12 and the valve sheet 31 may be arranged so that the longitudinal directions of the cross-sectional shapes are orthogonal to each other.
- the positional relationship between the cross-sectional shape of the spacing member 32 and the sheets 11, 12, 31 that can be arranged so that the short sides are orthogonal to each other is not limited.
- the front-side spacing member 32x attached to the front bag sheet 11 and the rear-side spacing member 32y attached to the rear bag sheet 12 are in the forward direction.
- the airflow F1 is alternately arranged upstream and downstream with respect to the airflow F1.
- FIG. 9 (C) shows that the valve seat 31 is drawn in close contact in a straight state due to the illustrated alignment with FIG. 1 (C).
- the stuck valve body sheet 31 is also curved by the alternately arranged spacing members 32x, 32y. You. Due to the curvature of the valve body sheet 31, the check effect against the reverse airflow F2 can be further enhanced.
- the spacing member 32 Even when a sheet-like body is used as the spacing member 32, the front-side spacing member 32x and the rear-side spacing member 32y may be arranged differently from each other! .
- the spacing member 32 in the form of a thread as described above, the size of the movable portion 31c of the valve body sheet 31, which is in contact with the spacing member 32, in the direction along the air flow can be reduced. In addition, it is possible to reduce the width dimension (vertical dimension shown in FIGS. 1A and 3) of the entire valve body sheet 31. Further, in manufacturing the compression bag 1, unlike the case where the spacing member 32 is formed in a sheet shape, the spacing member 32 is overlapped on each of the front bag sheet 11 and the rear bag sheet 12, and the valve body sheet 31 is further provided.
- Steps to be stacked (after Until the above-described step [2]), it is necessary to supply a long spacing member 32 to each of the front bag sheet 11, the rear bag sheet 12, and the valve body sheet 31 in parallel in the longitudinal direction. Since it can be supplied freely from an oblique direction or an orthogonal direction by bending it, it is advantageous in terms of the layout of manufacturing equipment.
- a force in which one of the thread-shaped spacing members 32 is arranged in the front bag sheet 11 and one in the rear bag sheet 12 is not limited to this.
- the front bag sheet 11 or the rear bag sheet 12 may be provided with two or more thread-like spacing members 32.
- the spacing member 32 a material that also generates a biasing force in a direction to increase the spacing between the inner surfaces 11 a and 12 a of the bag sheets 11 and 12 and the separation surface 31 d of the valve sheet 31 is used. Can also be used. Specifically, when the spacing member 32 is a sheet, a sheet made of urethane foam that generates a repulsive force in the thickness direction can be exemplified. When the urethane foam sheet is used as described above, it is desirable that the thickness of the spacing member 32 when applied to the sealed bag 1 be 0.5 mm to 3 mm! / ⁇ .
- the contact surfaces 31a of the valve body sheet 31 can be more securely brought into close contact with each other, and the airflow passage space 3a is closed to prevent the backflow of the airflow. it can.
- the spacing member 32 may be formed in a folded sheet shape, and may be divided into a plurality of portions with the fold 32c as a boundary.
- the sheet is folded in two.As shown in FIG. 14 (A), the partition 32 on one side is divided by the fold line into the inner surfaces 11a and 12a of the S bag sheets 11, 12.
- the section 32b of Tsukuda J is supposed to come into contact with the separation surface 31d of the S valve body sheet 31, and both sections 32a and 32b attempt to spread in the opposite direction with the fold 32c as a boundary (arrow shown in the figure). ), Which exerts a biasing force.
- the bag sheets 11, 12 and the valve body sheet 31 are described as being composed of separate sheets.
- the present invention is not limited to this, and the front bag sheet 11 and the valve body sheet 31
- the back bag sheet 12 and the valve body sheet 31 may be integrated.
- a configuration of at least one of the bag sheets 11 and 12 may be partially used as the valve sheet 31.
- the bag sheets 11 and 12 are formed by bonding and laminating a plurality of resin films such as a polyethylene film and a nylon film. As shown in FIG.
- the outer resin films 11a, 12a and the inner resin films lib, 12b constituting the adhesive film 12 an adhesive is applied to the adhesive portions 11c, 12c, and the non-adhesive portions serving as the ends of the bag sheets 11, 12
- FIG. 7 (B) only the non-adhered portions lid, 12d are covered with the outer resin films 11a, 12a and the inner resin, as shown in FIG. Fat films l ib and 12b can be separated.
- the non-adhered portions lid and 12d are used as the ventilation path 3 of the compression bag 1. That is, as shown in FIG. 6 (A), when the outer resin films 1 la, 12a are positioned outside the compression bag 1, these outer resin films 11a, 12a are shown in FIG.
- the inner resin films lib and 12b are used as those corresponding to the front bag sheet 11, and the inner resin films lib and 12b are used as the valve sheet 31 shown in FIG. 1 (B), specifically, the movable part 31c of the valve sheet.
- the spacing member 32 is arranged between the outer resin films 11a and 12a and the inner resin films Lib and 12b. Even when the front bag sheet 11 and the rear bag sheet 12 are formed of three or more layers of a resin film, the same non-adhesive portion as described above is provided in at least one of the layers between the films. Similarly to the above two-layer resin film, the resin film (layer) existing on the outside is used as the one corresponding to the front bag sheet 11 shown in FIG. The film (layer) can be used as the one corresponding to the valve sheet 31 shown in FIG. 1 (B).
- various processing methods such as wet lamination, extrusion coating lamination, dry lamination, and non-solvent lamination can be selected.
- valve body sheet 31 is made up of two flat sheets, each of which is attached to the front bag sheet 11 and the rear bag sheet 12.
- FIG. 7 the valve body sheet 31 may be used as a folded shape.
- one valve body sheet 31 may be used for one compression bag, and may be attached only to the front bag sheet 11 or the rear bag sheet 12.
- the mating surface 31a of the valve body sheet 31 comes into close contact with the inner surface 11a of the front bag sheet 11 or the inner surface 12a of the rear bag sheet 12 facing the contact surface 31a.
- Valve seat 31 in the case shown
- the airflow passage space 3a is opened as shown in Fig. 8 (A) and the airflow passage space 3a is closed as shown in Fig. It is possible to move within the range up to the state.
- the sealing portion 2 is arranged on the upper side and the ventilation path forming portion 30 is arranged on the lower side with the sealing portion partition seal 14 as a boundary.
- the configuration is not limited to this.
- a valve body sheet 31 and a spacing holding member 32 are vertically arranged on the right end side in the drawing, and the sealing portion 2 is divided into a sealing portion partitioning seal 14 extending vertically in the drawing, and a sealing bag. 1 is the left side of the sealing section partition seal 14 defined by the bag side seal 16 that defines the right end in the figure and the bottom seal 15 that defines the lower end of the sealing bag 1.
- a bag side seal 16 may be formed and an opening la may be provided at the upper end in the figure. That is, in the sealed bag (compressed bag) 1 shown in FIG. 1 (A), the opening la is moved from the upper end to the right end in the drawing.
- the ventilation path 3 may be provided only at one location in the sealing bag 1.
- the sealing section 2 and the ventilation path forming section 30 are not defined as being partitioned as shown in FIG.
- only the upper portion of the right side ventilation path side seal 33 and the right side bag side seal 16 are connected, and only the left side ventilation path side seal is shown.
- the sealing section partition seal 14 is not provided between the seal 33 and the bag side seal 16 on the left end, and only the bottom seal 15 that defines the lower end of the sealed bag 1 is provided.
- the opposing valve body sheets 31 are still separated from each other, and this portion 2a can be used as a part of the sealing portion 2, and the article M is transferred to the lower end of the sealing bag 1.
- the ventilation path side seal 33 and the bag side seal 16 may be combined.
- the front inner valve element which is smaller in vertical dimension than the front valve element sheet 31x, is closer to the airflow passage space 3a than the front valve element sheet 31x.
- Sheet 31 '' may be arranged.
- the rear inner valve body sheet 31y ' having a smaller vertical dimension than the rear valve body sheet 31y and the front inner valve body sheet 31' '. It is good also as composition which arranges and can close the ventilation path 3 three times.
- the seat may be used as the front inner valve body sheet 31 '' or the rear inner valve body sheet 31y '.
- the form of the sealed bag 1 can be variously modified and implemented.
- the closing member 4 is attached to each of the front bag sheet 11 and the rear bag sheet 12 by heat sealing at the upper end in the drawing, which is the opening la of the compression bag 1 after completion (step [ 1]).
- the closing member 4 is a chuck in which a convex portion is arranged on one side of the bag sheets 11 and 12 and a concave portion is arranged on the other side.
- the holding member 32 it is supplied to each step continuously without a break in the longitudinal direction.
- the spacing member 32 is superimposed on each of the front bag sheet 11 and the rear bag sheet 12, and the valve body sheet 31 is further superimposed. (Step [2]).
- valve body sheet 31 is bonded to the superposed front bag sheet 11 or the rear bag sheet 12 by applying a valve body adhesive seal S1 by heat sealing (step [3]).
- a valve body adhesive seal S1 by heat sealing.
- the portion provided with the valve body adhesive seal S 1 is a bonded portion 3 lb shown in FIG.
- the spacing member 32 is merely sandwiched between the front bag sheet 11 or the rear bag sheet 12 and the valve body sheet 31, and has not yet been bonded. Further, in this state, the front bag sheet 11 and the rear bag sheet 12 are separated from each other, and the valve body sheet 31 bonded to the front bag sheet 11 and the valve body bonded to the rear bag sheet 12 are provided. The sheet 31 is not affected by the heat of the heat seal and the pressure of the mold for performing the heat seal.
- the front bag sheet 11 and the rear bag sheet 12 in a state where the valve body sheets 31 are bonded to each other and the spacing members 32 are overlapped, and the valve body sheets 31 are They are superposed so that they face each other. That is, the valve body sheet 31 and the spacing member 32 are superimposed so that they are inside. Then, the center side seal S2 and the bag side seal S3 (16) are formed and bonded together on the stacked sheets 11, 12, 31, and 32 (step [4]).
- the center side seal S2 is a seal located in the center portion near the valve body sheet 31 in the state where the compression bag 1 is completed and formed in the longitudinal direction (left and right directions in the drawing). In this example, three rows are provided. They are formed side by side in the illustrated vertical direction. Among them, the upper central side seal S2a is for rectifying the forward airflow F1 and reinforcing the front bag sheet 11 and the rear bag sheet 12, and the reinforcing seal 13 shown in FIG. Of these, a portion sandwiched between two ventilation paths 3 is formed. The middle central seal S2b is used to partition the sealing portion 2 from the ventilation passage 3 and is sandwiched between two ventilation passages 3 in the sealing portion partitioning seal 14 shown in FIG. Make up the part.
- the lower center side seal S2c defines the lower end of the compression bag 1, and is used for integrally bonding the sheets 11, 12, 31, and 32.
- the bag side seal S3 (16) is located at both left and right ends of the compression bag 1 (based on each sheet 11, 12, 31, 32). Standard longitudinal both ends) to bond the sheets 11, 12, 31, 32 together.
- left and right side seals S4 are formed on the left and right sides in the drawing of the center side seal S2 formed as described above (step [5]).
- the left and right side seal S4 is composed of a left and right direction seal S41 and a vertical direction seal S42, and the left and right direction seal S41 is a seal formed in the longitudinal direction (left and right directions in the drawing) in this example.
- three rows are formed side by side in the vertical direction in the figure, and have the same function as the above-mentioned central seal S2.
- the upper left-right seal S41a is for rectifying the forward airflow F1 and for reinforcing the front bag sheet 11 and the rear bag sheet 12, and the reinforcement shown in FIG.
- the seal 13 constitutes a portion closer to the end of the bag than the two ventilation paths 3.
- the intermediate left-right direction seal S41b is for partitioning the sealed portion 2 and the air passage 3, and is one of the sealed portion partition seals 14 shown in FIG. Construct the end part.
- the lower left-right direction seal S41c defines the lower end of the compression bag 1, and is used for integrally bonding the sheets 11, 12, 31, and 32.
- the bottom seal 15 shown in FIG. Of these, the two air passages 3 constitute the end portion of the bag.
- the up-down direction seal S42 is the airway side seal 33 already described, and is located on the left and right sides of the airway 3 when the compression bag 1 is completed, as shown in FIG. , A seal formed in the vertical direction in the figure. Therefore, the left and right sides of the ventilation path 3 are defined by the vertical seal S42.
- the upper end of the ventilation path 3 is defined by a position on the extension of the middle left-right seal S41b of the middle middle seal S2b and the left-right seal S4. That is, the upper end of the vertical seal S42, which is closer to the sealing portion 2, is formed continuously with the middle central seal S2b and the middle left-right seal S41b, which are the sealing partition seals 14.
- the position of the upper end of the ventilation path 3 coincides with the position of the upper end of the valve body sheet 31 and the position of the valve body adhesive seal S1. obtain.
- the lower end of the ventilation path 3 is defined by the lower ends of the bag sheets 11 and 12 in this example.
- each of the seals S1-S4 described above is heated with respect to each of the sheets 11, 12, 31, and 32. It is formed by pressing a mold. Since the seals S1 to S4 are formed by the above-described procedure, the mold is not pressed against the sheets 11, 12, 31, and 32 in the portion corresponding to the position where the airflow passes in the ventilation path 3. However, since no heat sealing was performed, the valve body sheets 31 were lightly adhered to each other by the heat at the time of the heat sealing and the pressure of the mold for performing the heat sealing, and the air passage 3 was closed as in the conventional case. In this state, no extra force is required to open the air passage 3, so that the sealed portion 2 of the completed compression bag 1 is pressed by hand to remove the air existing in the sealed portion 2. When degassing to the outside of the compression bag 1, even if used by a relatively weak person such as a child or an elderly person, it can be degassed lightly with almost no resistance.
- valve body adhesive seal S1 is separately provided between the front bag sheet 11 and the valve body sheet 31 and between the rear bag sheet 12 and the valve body sheet 31 separately. At this time, since the front bag sheet 11 and the rear bag sheet 12 are separated at this time, heat and heat sealing when the valve body adhesive seal S1 is formed by heat sealing are performed. The pressure of the mold to apply the pressure has no adverse effect on the formation of the ventilation path 3.
- each of the sheets 11, 12, 31, 32 and the closing means 4 is cut in an upward and downward direction in the drawing so as to equally divide the bag side seal S3 (16), thereby compressing the bag. Bag 1 is completed (Step [6]).
- the sheets (11, 12, 31, 32) continuous in the longitudinal direction and the closing means 4 are used, and each of the steps ([1]-[6]) is continuously performed. Since the compressed bags 1 are formed one after another by being sequentially processed such as heat sealing and cutting, the check valve 105 is sealed, as in the conventional example shown in FIG.
- the manufacturing process is relatively easy and the manufacturing cost is reduced because a complicated manufacturing process of manufacturing separately from the sheet forming the part 102 and incorporating it later when forming the sealing part 102 is unnecessary. It is possible.
- Examples 1 to 3 relate to the present invention, and the compression of the form shown in FIG. A deformed shape of the air passage 3 of the bag 1 was used (see FIG. 18 (A)).
- the compression bag 1 in the above state was sandwiched between two rigid plates from above and below, the lower plate was fixed, and the upper plate was moved downward.
- the power (unit: N) added to 1 was measured.
- the moving speed of the plate was 100 mm / min.
- the compression bag according to Comparative Examples 1 and 2 is a compression bag 101 shown as a conventional example in FIG.
- the compression bag according to Comparative Example 3 is the compression bag shown in FIG. 16, in which the same five check valves 105 as those of Comparative Example 2 are provided side by side.
- the compression bag according to Comparative Examples 416 is a compression bag 201 shown as a conventional example in FIG.
- the compression bag according to Comparative Example 7 is a commercially available compression bag having a maze-shaped ventilation path formed at a corner as shown in FIG. 18 (B).
- the compression bags according to Comparative Examples 8 and 9 are commercially available compression bags in which a silicone oil (adhesive substance) is sealed in an air passage and can be closed.
- [0059] The measurement was performed one to three times.
- [1] and [2] show the values at the moment of the start of ventilation
- [3] show the average values from the start to the end of ventilation.
- the measured value force was higher in the example than in the comparative example, and the compressed bag 1 according to the present invention was lightly degassed with small resistance. It was actually confirmed that it was possible.
- the present invention has the following excellent effects.
- the invention according to claim 1 of the present application is characterized in that the inner surfaces 11a, 12 of the bag sheets 11, 12 are provided by the spacing members 32 arranged between at least one of the bag sheets 11, 12 and the valve sheet 31. At least a part of the space between the a and the separation surface 31d of the valve body sheet 31 can maintain a space of 32 minutes, so that it is easier for the valve body sheet 31 to close the air passage 3. Thus, the backflow of air in the ventilation path 3 can be effectively prevented, and the structure of the ventilation path of the sealed bag, which can maintain the deaerated state of the sealing portion 2 for a long period of time, can be provided. .
- the invention according to claim 2 of the present application in addition to the above-described effects, is particularly a valve body that is a portion that comes into contact with the spacing member 32 when the spacing member 32 is formed of a thread.
- the dimension of the movable portion 31c of the seat 31 in the direction along the air flow can be reduced, thereby providing a structure of a ventilation path of a sealed bag capable of reducing the overall width of the valve seat 31. is there.
- the gap holding member 32 can be freely supplied from an oblique direction or an orthogonal direction by bending or the like, the layout of the manufacturing apparatus is advantageous.
- the invention according to claim 3 of the present application has the arrangement in which the spacing members 32 are displaced from each other, so that each of the positions where the spacing members 32 are provided is provided.
- the contact surface 31a of the valve body sheet 31 is projected into the airflow passage space 3a, whereby the airflow air space 3a can be curved. It is possible to provide a structure of an air passage of a sealed bag that can further enhance the check effect with respect to F2.
- the inventions according to claims 4 and 5 of the present application provide, in addition to the effects of the above-described inventions, the inner surfaces 11 a and 12 a of the bag sheets 11 and 12 and the valve body sheet 31. Since the urging force is generated in a direction to widen the gap with the separation surface 31d, the contact surfaces 31a of the valve body sheet 31 can be more securely brought into close contact with each other, and the airflow passage space 3a is closed, and the airflow is reduced. Thus, the structure of the air passage of the sealed bag capable of preventing the backflow of the air can be provided.
- the bag sheets 11, 12 are arranged by the spacing members 32 arranged between at least one of the bag sheets 11, 12 and the valve body sheet 31. At least a portion between the inner surfaces 11a and 12a of the valve body 12 and the separation surface 31d of the valve body sheet 31 can maintain a space of 32 minutes, so that the valve body sheet 31 closes the ventilation passage 3. This makes it possible to provide a sealed bag that can effectively prevent the backflow of air in the ventilation path 3 and maintain the degassed state of the sealed portion 2 for a long period of time. .
- the invention according to claims 9 and 10 of the present invention is characterized in that the spacing sheet 32 arranged between at least one of the bag sheets 11 and 12 and the valve body sheet 31 allows the bag sheet 11 to be disposed. , 12 at least between the inner surfaces 11a, 12a and the separation surface 31d of the valve body sheet 31 can maintain a spacing of 32 minutes, so that the valve body sheet 31
- the sealing bag 1 which can easily prevent the backflow of air in the ventilation path 3 because it can be closed more easily and can maintain the deaerated state of the sealing part 2 for a long time,
- the valve body sheet 31, and the spacing member 32 which are supplied without interruption, it is possible to manufacture in one process, thereby reducing the manufacturing cost. It is possible to provide a method for manufacturing a sealed bag which can be reduced.
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Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04799543A EP1702856B1 (en) | 2004-01-10 | 2004-11-09 | Structure of air vent passage of sealed bag, sealed bag, and method of manufacturing sealed bag |
AT04799543T ATE492484T1 (de) | 2004-01-10 | 2004-11-09 | Struktur für einen entlüftungsdurchgang für einen abgedichteten beutel, abgedichteter beutel und verfahren zur herstellung eines abgedichteten beutels |
DE602004030715T DE602004030715D1 (de) | 2004-01-10 | 2004-11-09 | Struktur für einen entlüftungsdurchgang für einen abgedichteten beutel, abgedichteter beutel und verfahren zur herstellung eines abgedichteten beutels |
JP2005516801A JP4416738B2 (ja) | 2004-01-10 | 2004-11-09 | 密封袋の通気路の構造及び密封袋及び密封袋の製造方法 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP2004034225A JP3677515B1 (ja) | 2004-01-10 | 2004-01-10 | 圧縮袋の製造方法及び圧縮袋及び空気通路の構造 |
JP2004-034225 | 2004-01-10 | ||
JPPCT/JP2004/001212 | 2004-02-05 | ||
PCT/JP2004/001212 WO2005066031A1 (ja) | 2004-01-10 | 2004-02-05 | 圧縮袋の製造方法及び圧縮袋 |
Publications (2)
Publication Number | Publication Date |
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WO2005066032A1 true WO2005066032A1 (ja) | 2005-07-21 |
WO2005066032A8 WO2005066032A8 (ja) | 2005-10-20 |
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/001212 WO2005066031A1 (ja) | 2004-01-10 | 2004-02-05 | 圧縮袋の製造方法及び圧縮袋 |
PCT/JP2004/016566 WO2005066032A1 (ja) | 2004-01-10 | 2004-11-09 | 密封袋の通気路の構造及び密封袋及び密封袋の製造方法 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/001212 WO2005066031A1 (ja) | 2004-01-10 | 2004-02-05 | 圧縮袋の製造方法及び圧縮袋 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7448803B2 (ja) |
EP (1) | EP1702856B1 (ja) |
JP (2) | JP3677515B1 (ja) |
CN (1) | CN100497105C (ja) |
AT (1) | ATE492484T1 (ja) |
DE (1) | DE602004030715D1 (ja) |
WO (2) | WO2005066031A1 (ja) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7674039B2 (en) * | 2003-02-19 | 2010-03-09 | Illinois Tool Works Inc. | Reclosable vacuum storage bag having flat resealable means |
US7748904B2 (en) * | 2005-05-12 | 2010-07-06 | Illinois Tool Works Inc. | Multicompartment evacuable storage bag |
US20090028468A1 (en) * | 2005-07-01 | 2009-01-29 | Mikio Tanaka | Structure of air passage of sealable bag, sealable bag, and method of manufacturing the sealable bag |
EP1930247A1 (en) * | 2005-09-02 | 2008-06-11 | Kawai, Osamu | Deaeration valve and compression bag with the deaeration valve |
US8419278B2 (en) * | 2005-09-02 | 2013-04-16 | Mikio Tanaka | Check valve and compression bag and air cushion bag equipped therewith |
US8328421B2 (en) * | 2008-01-30 | 2012-12-11 | S.C. Johnson & Son, Inc. | Push-down compressible pouch with one-way valves on sides |
JP4441575B2 (ja) * | 2008-07-24 | 2010-03-31 | 株式会社悠心 | 逆止機能ノズルを備えるフレキシブル包装袋および液状物充填包装構造体 |
JP4673929B1 (ja) * | 2010-06-17 | 2011-04-20 | 有限会社田中テクニカル | シート製の逆止弁構造 |
CA2815418A1 (en) * | 2010-10-22 | 2012-04-26 | S. C. Johnson & Son, Inc. | Compressible pouch with multiple collapsible channels across bottom |
US20130177266A1 (en) * | 2012-01-09 | 2013-07-11 | Curwood, Inc. | Readily Ventable Reclosable Flexible Containers |
CN202880106U (zh) * | 2012-03-06 | 2013-04-17 | 上海艾尔贝包装科技发展有限公司 | 自粘膜止回阀和空气包装装置 |
MY175020A (en) * | 2013-10-17 | 2020-06-03 | Sin Sheng Kuang M Sdn Bhd | Package with pressure venting seal carrying surface profile |
US9387524B2 (en) * | 2013-11-01 | 2016-07-12 | Danny Earp | Effluent containment device for cleaning fin fan coolers |
US20160221722A1 (en) * | 2015-02-03 | 2016-08-04 | 365-Sports, LLC | Sealable Storage Bag and Related Methods |
CN106081355A (zh) * | 2015-05-22 | 2016-11-09 | 聂会平 | 空气缓冲体的充气方法 |
JP6168328B1 (ja) * | 2016-08-30 | 2017-07-26 | 共栄機械株式会社 | 逆止弁付製袋装置 |
NL2018192B1 (en) * | 2017-01-18 | 2018-07-26 | Daklapack Europe B V | Shipping envelope and method |
JP6359731B1 (ja) * | 2017-07-04 | 2018-07-18 | 株式会社柏原製袋 | 袋用閉止弁を備えた袋及び食品用脱気袋 |
WO2019009139A1 (ja) * | 2017-07-04 | 2019-01-10 | 株式会社柏原製袋 | シート製の閉止弁及び閉止弁付きの袋 |
KR101885315B1 (ko) * | 2017-08-09 | 2018-08-06 | 이승종 | 포장용 압축팩 |
JP7245602B2 (ja) * | 2017-09-27 | 2023-03-24 | 大王製紙株式会社 | 包装袋 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09309544A (ja) * | 1996-05-17 | 1997-12-02 | Kaken Kogyo Kk | 粉、粒体の収容袋 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3806025A (en) * | 1970-10-19 | 1974-04-23 | T Marshall | Stemming bag |
US5514431A (en) * | 1993-12-30 | 1996-05-07 | Dai Nippon Printing Co., Ltd. | Air bag and method for making the air bag |
US5540500A (en) * | 1994-04-25 | 1996-07-30 | Nichimen Corporation | Compressive sealed bag for compressible articles such as clothing and the same |
KR100371671B1 (ko) * | 1994-05-17 | 2003-05-17 | 이데미쓰세끼유가가꾸가부시끼가이샤 | 스냅이부착된자루 |
JPH08230898A (ja) * | 1995-03-01 | 1996-09-10 | N K Kogyo Kk | 衣類圧縮収納袋 |
JPH09290841A (ja) * | 1996-04-24 | 1997-11-11 | Seisan Nipponsha Kk | 逆止弁付合成樹脂製袋体 |
US5901850A (en) * | 1996-10-04 | 1999-05-11 | Impackt, L.L.C. | Inflatable packaging assembly |
US6116781A (en) * | 1999-08-13 | 2000-09-12 | New West Products, Inc. | Storage bag with one-way air valve |
JP2001180687A (ja) * | 1999-12-28 | 2001-07-03 | Idemitsu Petrochem Co Ltd | 脱気部付圧縮袋 |
JP3563024B2 (ja) * | 2000-10-12 | 2004-09-08 | 株式会社柏原製袋 | 圧縮袋 |
JP2002302164A (ja) * | 2001-04-02 | 2002-10-15 | Yamamon:Kk | 包装袋 |
EP1539576A4 (en) * | 2002-03-12 | 2007-05-30 | Inflatable Packaging Inc | INFLATABLE TRAPPING BAG WITH PROTECTED INFLATION VALVE |
JP2005219766A (ja) * | 2004-02-05 | 2005-08-18 | Kashiwara Seitai:Kk | 逆止弁及び逆止弁付の袋 |
-
2004
- 2004-01-10 JP JP2004034225A patent/JP3677515B1/ja not_active Expired - Fee Related
- 2004-02-05 US US10/496,678 patent/US7448803B2/en not_active Expired - Fee Related
- 2004-02-05 WO PCT/JP2004/001212 patent/WO2005066031A1/ja active Application Filing
- 2004-11-09 AT AT04799543T patent/ATE492484T1/de not_active IP Right Cessation
- 2004-11-09 CN CNB2004800005086A patent/CN100497105C/zh not_active Expired - Fee Related
- 2004-11-09 WO PCT/JP2004/016566 patent/WO2005066032A1/ja active Application Filing
- 2004-11-09 EP EP04799543A patent/EP1702856B1/en not_active Not-in-force
- 2004-11-09 DE DE602004030715T patent/DE602004030715D1/de active Active
- 2004-11-09 JP JP2005516801A patent/JP4416738B2/ja active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09309544A (ja) * | 1996-05-17 | 1997-12-02 | Kaken Kogyo Kk | 粉、粒体の収容袋 |
Also Published As
Publication number | Publication date |
---|---|
WO2005066031A1 (ja) | 2005-07-21 |
EP1702856A1 (en) | 2006-09-20 |
JP4416738B2 (ja) | 2010-02-17 |
JP3677515B1 (ja) | 2005-08-03 |
JPWO2005066032A1 (ja) | 2007-12-20 |
CN1735538A (zh) | 2006-02-15 |
CN100497105C (zh) | 2009-06-10 |
EP1702856A4 (en) | 2009-07-29 |
DE602004030715D1 (de) | 2011-02-03 |
ATE492484T1 (de) | 2011-01-15 |
US7448803B2 (en) | 2008-11-11 |
WO2005066032A8 (ja) | 2005-10-20 |
EP1702856B1 (en) | 2010-12-22 |
JP2006305731A (ja) | 2006-11-09 |
US20050252816A1 (en) | 2005-11-17 |
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