EP1783060A1 - Fitting member and packaging bag body having fitting member - Google Patents
Fitting member and packaging bag body having fitting member Download PDFInfo
- Publication number
- EP1783060A1 EP1783060A1 EP05768544A EP05768544A EP1783060A1 EP 1783060 A1 EP1783060 A1 EP 1783060A1 EP 05768544 A EP05768544 A EP 05768544A EP 05768544 A EP05768544 A EP 05768544A EP 1783060 A1 EP1783060 A1 EP 1783060A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fastener
- joining portion
- packaging bag
- flange portion
- thickness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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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
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
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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
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
- B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
- B65D33/2541—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor characterised by the slide fastener, e.g. adapted to interlock with a sheet between the interlocking members having sections of particular shape
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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
- B65D33/00—Details of, or accessories for, sacks or bags
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/24—End- or aperture-closing arrangements or devices using self-locking integral or attached closure elements, e.g. flaps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
- B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
- B65D33/2516—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener
- B65D33/2525—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener located between the fastener and the product compartment
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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
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
- B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
- B65D33/2516—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener
- B65D33/2533—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener the slide fastener being located between the product compartment and the tamper indicating means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
- Y10T24/45152—Each mating member having similarly shaped, sized, and operated interlocking or intermeshable face
Definitions
- the present invention relates to a fastener and a packaging bag with a fastener, which is capable of preventing contents from leaking to an opening side of the fastener until a consumer utilizes the fastener even if the content is a liquid, cutting a joining portion off easily so as to open the bag when the content is taken out therefrom, fastening repeatedly and opening again after the bag is opened.
- a fastener and a packaging bag with a fastener which is capable of preventing contents from leaking to an opening side of the fastener until a consumer utilizes the fastener even if the content is a liquid, cutting a joining portion off easily so as to open the bag when the content is taken out therefrom, fastening repeatedly and opening again after the bag is opened.
- a packaging bag with a fastener which is equipped with a pair of fastening members consisting of a male member and a female member at an opening portion of the bag and capable of opening and closing repeatedly, has been used in various fields such as food, medicine, miscellaneous goods, etc.
- various countermeasures such as applying an easily removable film between a fastening member and a raw material film, applying an easily removable layer in a fastening member or a raw material film, etc. so as to form an easily-removable joining portion further at a non-opening side of the fastening member, have been performed in the case in which it is required to prevent the contents from flowing out from the bag completely.
- Patent document 1 Japanese Unexamined Patent Application, First Publication No. H11-285518
- the inventors of the present invention have thoroughly researched in order to solve the above problems, and as a result, they have found that the above problems can be solved by joining the end portion of a non-opening side flange portion of a male member side with the end portion of a non-opening side flange portion of a female member side using a member having a specific thickness, and disposing a ridge having a specific thickness between the joining portion and the flange portion, and completed the present invention.
- a first aspect of the present invention is a fastener including a male member and a female member being engageable with each other, a joining portion whereby an end of the non-opening side flange portion of the male member is joined with an end of the non-opening side flange portion of the female member, and a ridge portion formed between the joining portion and the flange portion, in which the joining portion has a thickness ranging from not less than 10 ⁇ m to not more than 100 ⁇ m, the ridge portion has a thickness ranging from not less than 200 ⁇ m to not more than 2 mm, the joining portion is thinner than the flange portion, and the ridge portion is thicker than the flange portion.
- a second aspect of the present invention is a packaging bag with a fastener, produced by fusing the fastener as set forth in the first aspect of the present invention to a bag to form a packaging bag.
- the fastener and the packaging bag in accordance with the present invention can prevent the contents from leaking out even if the content is a substance having high fluidity, and which can cut the joining portion off easily when opening the packaging bag to take the contents out therefrom.
- a joining portion 2 has a thickness that ranges from not less than 10 ⁇ m to not more than 100 ⁇ m, preferably ranges from not less than 20 ⁇ m to not more than 80 ⁇ m, more preferably ranges from not less than 20 ⁇ m to not more than 50 ⁇ m, and still more preferably ranges from not less than 30 ⁇ m to not more than 50 ⁇ m.
- the reason the thickness of the joining portion 2 is regulated within the above range is that if the thickness is less than 10 ⁇ m, then the joining portion 2 may be broken due to friction, etc., or due to lack of strength when filling with a content, although the joining portion 2 can be easily cut off. On the other hand, if the thickness is more than 100 ⁇ m, then the joining portion 2 has an excessive strength, and hence it becomes difficult to cut the joining portion 2 off easily.
- a ridge portion 3 is disposed between the joining portion 2 and the flange portion 4, and the thickness of the ridge portion 3 ranges from not less than 200 ⁇ m to not more than 2 mm, preferably ranges from not less than 300 ⁇ m to not more than 1.5 mm, and more preferably ranges from not less than 300 ⁇ m to not more than 1.0 mm.
- the ridge portion 3 is disposed to accelerate the concentration of stress at the joining portion 2, and if no ridge portion 3 is disposed, then the boundary between the joining portion 2 and the flange portion 4 becomes unclear, and as a result it becomes impossible to cut the joining portion 2 off easily.
- the thickness of the ridge portion 3 is less than 200 ⁇ m, then the difference in thickness between the joining portion 2 and the ridge portion 3 is too small, and as a result, stress is hardly concentrated at the joining portion 2.
- the thickness of the ridge portion 3 is more than 2 mm, then the amount of resin at the ridge portion 3 becomes too large, and as a result, the ridge portion 3 cannot be completely squashed down in side-sealing during the bag-production process causing bag-production defects. In addition, it is likely to inhibit the engaging or breaking of the joining portion 3 when engaging the male member with the female member.
- the resin which constitutes the fastener of the present invention is not particularly limited, polyolefin type resins, such as polyethylene, polypropylene, etc. are preferably used, and a resin composition consisting of two or more resins may be used.
- the shape and the number of each of the male member and the female member are not particularly limited, and an arbitrary shape may be used as long as it has reopenable and reclosable function.
- the method for producing the fastener of the present invention is not particularly limited, and a well-known method such as one that includes extruding a resin which has been melted and kneaded from a die using an extruder, and then cooling the resultant resin and molding it can be used.
- a packaging bag can be produced by the method including the step of thermally fusing the fastener of the present invention onto a base material film.
- the fastener and the packaging bag of the present invention can also be favorably used for packaging a fluid or liquid content, such as curry sauce, rice gruel, baste, bean jam, a flavoring material, etc., in addition to a dry substance, or a solid material.
- a fluid or liquid content such as curry sauce, rice gruel, baste, bean jam, a flavoring material, etc.
- the cutting-off performance of a joining portion at the time of opening was evaluated by the following method.
- Each of a flange portion 41 of a non-opening side of a male member and a flange portion 42 of a non-opening side of a female member was pinched by a thumb and a forefinger, and it was stretched to evaluate the cutting-off performance of the joining portion 2.
- the evaluation standard is as follows.
- a packaging bag with a fastener was produced by placing a fastener portion with a width of 140 mm and a length of 210 mm on a position which was apart by 30 mm from an upper end of the bag, and then heat sealing the upper end and the side portion of the bag with a width of 10 mm. 200 ml of water was filled into the resultant packaging bag with a fastener from the bottom, and the bottom was heat-sealed with a width of 10 mm. The resultant bag was dropped from a height of 1m and it was confirmed whether the water was leaked or not. Evaluation standard is as follows.
- a resin consisting of 100% by weight of ethylene propylene copolymer (Sumitomo Noblen (trademark) FS3611 made by Sumitomo Chemical Co., Ltd.) was used, and this resin was molded and kneaded at 210°C, using an extruder having a diameter of 40 mm, and a L/D of 25, and the resultant resin was introduced to a die having a joining portion at a male and female part of a fastener, whereby the resultant resin was subjected to an extrusion molding processing such that the thickness of the joining portion 2 became 30 ⁇ m, the thickness of the ridge portion 3 became 300 ⁇ m, and the thickness of the flange portion 4 became 150 ⁇ m, and then the resultant resin was introduced to a water-cooling bath so as to be cooled and solidified, and thereafter the resultant resin was wound by a winder to obtain a fastener.
- a fastener was produced by the same way as in Example 1, with the exception of performing an extrusion molding processing such that the thickness of the joining portion 2 became 50 ⁇ m, the thickness of the ridge portion 3 became 500 ⁇ m, and the thickness of the flange portion 4 became 150 ⁇ m, using a resin which consists of 100% by weight of a low density polyethylene (SUMIKASEN(trademark) F412-1 made by Sumitomo Chemical Co., Ltd.) as a material for the fastener. Results of the evaluation of the joining portion and the evaluation of liquid leakage are shown in Table 1.
- SUMIKASEN(trademark) F412-1 made by Sumitomo Chemical Co., Ltd.
- a fastener was produced by the same way as in Example 1, with the exception of performing an extrusion molding processing such that the thickness of the joining portion 2 became 5 ⁇ m, the thickness of the ridge portion 3 became 300 ⁇ m, and the thickness of the flange portion 4 became 150 ⁇ m, using a resin which consists of 100% by weight of an ethylene-propylene copolymer (SUMITOMO NOBLEN(trademark) FS3611 made by Sumitomo Chemical Co., Ltd.) as a material for the fastener.
- SUMITOMO NOBLEN(trademark) FS3611 made by Sumitomo Chemical Co., Ltd.
- a fastener was produced by the same way as in Example 1, with the exception of performing an extrusion molding processing such that the thickness of the joining portion 2 became 200 ⁇ m, the thickness of the ridge portion 3 became 300 ⁇ m, and the thickness of the flange portion 4 became 150 ⁇ m, using a resin which consists of 100% by weight of an ethylene-propylene copolymer (SUMITOMO NOBLEN (trademark) FS3611 made by Sumitomo Chemical Co., Ltd.) as a material for the fastener.
- SUMITOMO NOBLEN trademark
- Results of the evaluation of the joining portion and the evaluation of liquid leakage are shown in Table 1.
- Example 1 Comparative Example 1 Comparative Example 2 Thickness of the joining portion ( ⁇ m) 30 50 5 200 Thickness of the ridge portion ( ⁇ m) 300 500 300 300 Thickness of the flange portion ( ⁇ m) 150 150 150 Evaluation of the joining portion O ⁇ O ⁇ Evaluation of liquid leakage ⁇ ⁇ ⁇ ⁇
- the fastener and the packaging bag of the present invention can be applied to a fastener and the packaging bag, which can be fastened and opened repeatedly.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
- Packages (AREA)
Abstract
This packaging bag with a fastener is one which is produced by fusing a fastener including a male member and a female member being engageable with each other, a joining portion whereby an end of a non-opening side flange portion of the male member is joined with an end of a non-opening side flange portion of the female member, and a ridge portion formed between the joining portion and the flange portion, in which the joining portion has a thickness ranging from not less than 10 µm to not more than 100 µm, the ridge portion has a thickness ranging from not less than 200 µm to not more than 2 mm, the joining portion is thinner than the flange portion, and the ridge portion is thicker than the flange portion, to a bag to form a packaging bag.
Description
- The present invention relates to a fastener and a packaging bag with a fastener, which is capable of preventing contents from leaking to an opening side of the fastener until a consumer utilizes the fastener even if the content is a liquid, cutting a joining portion off easily so as to open the bag when the content is taken out therefrom, fastening repeatedly and opening again after the bag is opened.
Priority is claimed onJapanese Patent Application No. 2004-235302, filed August 12, 2004 - A packaging bag with a fastener, which is equipped with a pair of fastening members consisting of a male member and a female member at an opening portion of the bag and capable of opening and closing repeatedly, has been used in various fields such as food, medicine, miscellaneous goods, etc. However, it has been impossible to prevent the contents of the bag from leaking therefrom completely by only the sealing property of the fastening member, when the content has high fluidity. So, various countermeasures such as applying an easily removable film between a fastening member and a raw material film, applying an easily removable layer in a fastening member or a raw material film, etc. so as to form an easily-removable joining portion further at a non-opening side of the fastening member, have been performed in the case in which it is required to prevent the contents from flowing out from the bag completely.
- Although a method of preventing the contents from flowing out of a bag by disposing an easily removable joining portion has been disclosed (for example, see Patent document 1), there is a problem in that a side-seal portion of the easily removable portion has a sealing strength which is inferior to those of the other side sealing portions. [Patent document 1]
Japanese Unexamined Patent Application, First Publication No. H11-285518 - It is an object of the present invention to provide a fastener and a packaging bag with a fastener, which can prevent the content from leaking out from the bag without adding an easily removable joining portion at a non-opening side of a fastening member even when the content is a substance having high fluidity, which can cut a joining portion off easily when the bag is opened and the content is taken out therefrom, and which can be hermetically sealed and opened repeatedly.
- The inventors of the present invention have thoroughly researched in order to solve the above problems, and as a result, they have found that the above problems can be solved by joining the end portion of a non-opening side flange portion of a male member side with the end portion of a non-opening side flange portion of a female member side using a member having a specific thickness, and disposing a ridge having a specific thickness between the joining portion and the flange portion, and completed the present invention.
- That is, the present invention is as follows.
A first aspect of the present invention is a fastener including a male member and a female member being engageable with each other, a joining portion whereby an end of the non-opening side flange portion of the male member is joined with an end of the non-opening side flange portion of the female member, and a ridge portion formed between the joining portion and the flange portion, in which the joining portion has a thickness ranging from not less than 10 µm to not more than 100 µm, the ridge portion has a thickness ranging from not less than 200 µm to not more than 2 mm, the joining portion is thinner than the flange portion, and the ridge portion is thicker than the flange portion.
A second aspect of the present invention is a packaging bag with a fastener, produced by fusing the fastener as set forth in the first aspect of the present invention to a bag to form a packaging bag. - The fastener and the packaging bag in accordance with the present invention can prevent the contents from leaking out even if the content is a substance having high fluidity, and which can cut the joining portion off easily when opening the packaging bag to take the contents out therefrom.
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- FIG. 1 is a schematic view showing an example of a fastener of the present invention which is in an engaged state.
- FIG. 2 is a schematic view showing an example of a fastener of the present invention.
- FIG. 3 is a front view of an example of a packaging bag with the fastener of the present invention.
- FIG. 4 is a cross-sectional view showing a cross-section obtained by cutting along II-II line in FIG 3.
- The present invention will be explained in detail, below.
- FIG. 1 is a schematic view showing an example of a fastener of the present invention which is in an engaged state.
- FIG 2 is a schematic view showing an example of a fastener of the present invention.
- FIG 3 is a front view of an example of a packaging bag with the fastener of the present invention.
- FIG. 4 is a cross-sectional view showing a cross-section obtained by cutting along line II-II in FIG. 3.
- In the fastener including a male member and a female member being engageable with each other, an
end 4 of a non-opening side flange portion of the male member and of the female member are joined with each other, and a joiningportion 2 has a thickness that ranges from not less than 10 µm to not more than 100 µm, preferably ranges from not less than 20 µm to not more than 80 µm, more preferably ranges from not less than 20 µm to not more than 50 µm, and still more preferably ranges from not less than 30 µm to not more than 50 µm. The reason the thickness of the joiningportion 2 is regulated within the above range is that if the thickness is less than 10 µm, then the joiningportion 2 may be broken due to friction, etc., or due to lack of strength when filling with a content, although the joiningportion 2 can be easily cut off. On the other hand, if the thickness is more than 100 µm, then the joiningportion 2 has an excessive strength, and hence it becomes difficult to cut the joiningportion 2 off easily. - In the fastener of the present invention, a
ridge portion 3 is disposed between the joiningportion 2 and theflange portion 4, and the thickness of theridge portion 3 ranges from not less than 200 µm to not more than 2 mm, preferably ranges from not less than 300 µm to not more than 1.5 mm, and more preferably ranges from not less than 300 µm to not more than 1.0 mm. Theridge portion 3 is disposed to accelerate the concentration of stress at the joiningportion 2, and if noridge portion 3 is disposed, then the boundary between the joiningportion 2 and theflange portion 4 becomes unclear, and as a result it becomes impossible to cut the joiningportion 2 off easily. If the thickness of theridge portion 3 is less than 200 µm, then the difference in thickness between the joiningportion 2 and theridge portion 3 is too small, and as a result, stress is hardly concentrated at the joiningportion 2. On the other hand, if the thickness of theridge portion 3 is more than 2 mm, then the amount of resin at theridge portion 3 becomes too large, and as a result, theridge portion 3 cannot be completely squashed down in side-sealing during the bag-production process causing bag-production defects. In addition, it is likely to inhibit the engaging or breaking of the joiningportion 3 when engaging the male member with the female member. - Although the resin which constitutes the fastener of the present invention is not particularly limited, polyolefin type resins, such as polyethylene, polypropylene, etc. are preferably used, and a resin composition consisting of two or more resins may be used. Moreover, the shape and the number of each of the male member and the female member are not particularly limited, and an arbitrary shape may be used as long as it has reopenable and reclosable function.
- The method for producing the fastener of the present invention is not particularly limited, and a well-known method such as one that includes extruding a resin which has been melted and kneaded from a die using an extruder, and then cooling the resultant resin and molding it can be used.
- Moreover, a packaging bag can be produced by the method including the step of thermally fusing the fastener of the present invention onto a base material film.
- Moreover, the fastener and the packaging bag of the present invention can also be favorably used for packaging a fluid or liquid content, such as curry sauce, rice gruel, baste, bean jam, a flavoring material, etc., in addition to a dry substance, or a solid material.
- Although details of the present invention will be explained more specifically below based on Examples, the present invention will not be limited only by the following Examples.
- The cutting-off performance of a joining portion at the time of opening was evaluated by the following method.
Each of aflange portion 41 of a non-opening side of a male member and aflange portion 42 of a non-opening side of a female member was pinched by a thumb and a forefinger, and it was stretched to evaluate the cutting-off performance of the joiningportion 2.
The evaluation standard is as follows. - Ⓞ : Joining portion can be cut off very easily.
- ○ : Joining portion can be cut off easily.
- Δ : Although joining portion can be cut off, it is hard to cut off.
- X : Joining portion cannot be cut off.
- It was evaluated by the following method to confirm whether the content will be leaked or not. A packaging bag with a fastener was produced by placing a fastener portion with a width of 140 mm and a length of 210 mm on a position which was apart by 30 mm from an upper end of the bag, and then heat sealing the upper end and the side portion of the bag with a width of 10 mm. 200 ml of water was filled into the resultant packaging bag with a fastener from the bottom, and the bottom was heat-sealed with a width of 10 mm. The resultant bag was dropped from a height of 1m and it was confirmed whether the water was leaked or not.
Evaluation standard is as follows. - ○ : There is no liquid leakage
- X : There is liquid leakage
- As a material for a fastener, a resin consisting of 100% by weight of ethylene propylene copolymer (Sumitomo Noblen (trademark) FS3611 made by Sumitomo Chemical Co., Ltd.) was used, and this resin was molded and kneaded at 210°C, using an extruder having a diameter of 40 mm, and a L/D of 25, and the resultant resin was introduced to a die having a joining portion at a male and female part of a fastener, whereby the resultant resin was subjected to an extrusion molding processing such that the thickness of the joining
portion 2 became 30 µm, the thickness of theridge portion 3 became 300 µm, and the thickness of theflange portion 4 became 150 µm, and then the resultant resin was introduced to a water-cooling bath so as to be cooled and solidified, and thereafter the resultant resin was wound by a winder to obtain a fastener. Results of the evaluation of the joining portion and the evaluation of liquid leakage are shown in Table 1. - A fastener was produced by the same way as in Example 1, with the exception of performing an extrusion molding processing such that the thickness of the joining
portion 2 became 50 µm, the thickness of theridge portion 3 became 500 µm, and the thickness of theflange portion 4 became 150 µm, using a resin which consists of 100% by weight of a low density polyethylene (SUMIKASEN(trademark) F412-1 made by Sumitomo Chemical Co., Ltd.) as a material for the fastener. Results of the evaluation of the joining portion and the evaluation of liquid leakage are shown in Table 1. - A fastener was produced by the same way as in Example 1, with the exception of performing an extrusion molding processing such that the thickness of the joining
portion 2 became 5 µm, the thickness of theridge portion 3 became 300 µm, and the thickness of theflange portion 4 became 150 µm, using a resin which consists of 100% by weight of an ethylene-propylene copolymer (SUMITOMO NOBLEN(trademark) FS3611 made by Sumitomo Chemical Co., Ltd.) as a material for the fastener. Results of the evaluation of the joining portion and the evaluation of liquid leakage are shown in Table 1. - A fastener was produced by the same way as in Example 1, with the exception of performing an extrusion molding processing such that the thickness of the joining
portion 2 became 200 µm, the thickness of theridge portion 3 became 300 µm, and the thickness of theflange portion 4 became 150 µm, using a resin which consists of 100% by weight of an ethylene-propylene copolymer (SUMITOMO NOBLEN (trademark) FS3611 made by Sumitomo Chemical Co., Ltd.) as a material for the fastener. Results of the evaluation of the joining portion and the evaluation of liquid leakage are shown in Table 1. - The following can be seen from the results. That is, all of examples which satisfy the condition of the present invention do not show the liquid leakage, the joining portion could be cut off easily at the time of opening the packaging bag, and the packaging bag could be opened. On the other hand, in Comparative Example 1 having too thin a joining portion, liquid leakage was observed, whereas in Comparative Example 2 having too thick a joining portion, cutting performance of the joining portion could not be achieved and it was inferior in opening performance.
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[Table1] Example 1 Example 2 Comparative Example 1 Comparative Example 2 Thickness of the joining portion (µm) 30 50 5 200 Thickness of the ridge portion (µm) 300 500 300 300 Thickness of the flange portion (µm) 150 150 150 150 Evaluation of the joining portion Ⓞ ○ Ⓞ × Evaluation of liquid leakage ○ ○ × ○ - The fastener and the packaging bag of the present invention can be applied to a fastener and the packaging bag, which can be fastened and opened repeatedly.
Claims (2)
- A fastener comprising a male member and a female member being engageable with each other, a joining portion whereby an end of a non-opening side flange portion of the male member is joined with an end of a non-opening side flange portion of the female member, and a ridge portion formed between the joining portion and the flange portion, wherein the joining portion has a thickness ranging from not less than 10 µm to not more than 100 µm, the ridge portion has a thickness ranging from not less than 200 µm to not more than 2 mm, the joining portion is thinner than the flange portion, and the ridge portion is thicker than the flange portion.
- A packaging bag with a fastener, produced by fusing the fastener as set forth in claim 1 to a bag to form a packaging bag.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004235302A JP4330503B2 (en) | 2004-08-12 | 2004-08-12 | Fitting tool and packaging bag with fitting tool |
PCT/JP2005/014452 WO2006016539A1 (en) | 2004-08-12 | 2005-08-05 | Fitting member and packaging bag body having fitting member |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1783060A1 true EP1783060A1 (en) | 2007-05-09 |
EP1783060A4 EP1783060A4 (en) | 2010-12-01 |
Family
ID=35839309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05768544A Withdrawn EP1783060A4 (en) | 2004-08-12 | 2005-08-05 | Fitting member and packaging bag body having fitting member |
Country Status (6)
Country | Link |
---|---|
US (1) | US20090226119A1 (en) |
EP (1) | EP1783060A4 (en) |
JP (1) | JP4330503B2 (en) |
KR (1) | KR100819549B1 (en) |
CN (1) | CN100515873C (en) |
WO (1) | WO2006016539A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2374726A4 (en) * | 2008-12-09 | 2015-12-16 | Idemitsu Unitech Co Ltd | Packaging bag with zipper tape, device and method for manufacturing packaging bag, and band-like member for bending |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007261640A (en) * | 2006-03-29 | 2007-10-11 | Toyo Seikan Kaisha Ltd | Fastener and packaging bag which can be heat-sterilized |
JP2007331805A (en) * | 2006-06-16 | 2007-12-27 | Dainippon Printing Co Ltd | Chuck and heat sterilizable bag with chuck made by using the same |
JP5087345B2 (en) * | 2007-08-21 | 2012-12-05 | シーアイ化成株式会社 | Fitting |
JP5319987B2 (en) * | 2008-08-26 | 2013-10-16 | 出光ユニテック株式会社 | Zipper tape and packaging bag with zipper tape |
WO2011099516A1 (en) | 2010-02-12 | 2011-08-18 | 出光ユニテック株式会社 | Zipper tape and packing bag with zipper tape |
CN107074405A (en) * | 2014-10-17 | 2017-08-18 | 斯蒂芬·G.·阿姆斯特朗 | The closure member with sliding part for bag |
CN106335700B (en) * | 2015-07-09 | 2020-04-07 | 日本他喜龙希爱株式会社 | Fitting member, bag body with fitting member, and method for manufacturing bag body with fitting member |
EP3400825B1 (en) * | 2016-01-07 | 2021-02-17 | Idemitsu Unitech Co., Ltd. | Zipper tape, bag, and method for producing bag |
JP7352351B2 (en) * | 2018-12-25 | 2023-09-28 | タキロンシーアイ株式会社 | Fitting tool and bag with fitting tool |
JP7014833B2 (en) * | 2020-02-14 | 2022-02-01 | 大王製紙株式会社 | Household tissue paper storage container |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2004050487A2 (en) * | 2002-12-03 | 2004-06-17 | Reynolds Consumer Products, Inc. | Autoclavable reclosable package |
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US1234567A (en) * | 1915-09-14 | 1917-07-24 | Edward J Quigley | Soft collar. |
EP0045118B1 (en) * | 1979-01-05 | 1984-04-04 | National Research Development Corporation | Intermediates for the synthesis of bicyclo (2,2,1) heptanes and bicyclo (2,2,1) hept-2z-enes |
JPS63191705A (en) * | 1987-01-27 | 1988-08-09 | 日本特許管理株式会社 | Method of filling and sealing content while bag with biting tool is made automatically |
AU585174B2 (en) * | 1987-01-27 | 1989-06-08 | Fujitokushu Shigyo Company Limited | Bag with zipper and its production method |
CA2269358C (en) * | 1998-05-21 | 2005-04-12 | Illinois Tool Works Inc. | Transverse direction zipper tape |
US6499878B1 (en) * | 1999-12-21 | 2002-12-31 | Pactiv Corporation | Reclosable packages with barrier properties |
ES2236316T3 (en) * | 2000-10-13 | 2005-07-16 | Velcro Industries B.V. | FILLING AND USE OF BAGS THAT CAN BE CLOSED AGAIN. |
US6354738B1 (en) * | 2000-10-24 | 2002-03-12 | Illinois Tool Works Inc. | Tamper evident reclosable plastic bag |
US20030179955A1 (en) * | 2002-03-20 | 2003-09-25 | Rehwinkel Gary E. | Reclosable polymeric bags with tamper evident features |
US7396163B2 (en) * | 2002-12-14 | 2008-07-08 | Mcgregor James Ray | Paper and plastic bags flexible packages and other containers with re-closable device and method of making the same |
JP2005178791A (en) * | 2003-12-16 | 2005-07-07 | Juichi Kasai | Zip-fastener bag with slider |
-
2004
- 2004-08-12 JP JP2004235302A patent/JP4330503B2/en active Active
-
2005
- 2005-08-05 KR KR1020077002355A patent/KR100819549B1/en not_active IP Right Cessation
- 2005-08-05 CN CNB2005800267416A patent/CN100515873C/en active Active
- 2005-08-05 US US11/573,448 patent/US20090226119A1/en not_active Abandoned
- 2005-08-05 EP EP05768544A patent/EP1783060A4/en not_active Withdrawn
- 2005-08-05 WO PCT/JP2005/014452 patent/WO2006016539A1/en active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004050487A2 (en) * | 2002-12-03 | 2004-06-17 | Reynolds Consumer Products, Inc. | Autoclavable reclosable package |
Non-Patent Citations (1)
Title |
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See also references of WO2006016539A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2374726A4 (en) * | 2008-12-09 | 2015-12-16 | Idemitsu Unitech Co Ltd | Packaging bag with zipper tape, device and method for manufacturing packaging bag, and band-like member for bending |
Also Published As
Publication number | Publication date |
---|---|
JP4330503B2 (en) | 2009-09-16 |
CN100515873C (en) | 2009-07-22 |
KR20070039109A (en) | 2007-04-11 |
US20090226119A1 (en) | 2009-09-10 |
EP1783060A4 (en) | 2010-12-01 |
JP2006051987A (en) | 2006-02-23 |
WO2006016539A1 (en) | 2006-02-16 |
CN1993272A (en) | 2007-07-04 |
KR100819549B1 (en) | 2008-04-08 |
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