CN114852512A - Film sealing/packaging opening adopting pre-folding structure - Google Patents
Film sealing/packaging opening adopting pre-folding structure Download PDFInfo
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- CN114852512A CN114852512A CN202210654318.6A CN202210654318A CN114852512A CN 114852512 A CN114852512 A CN 114852512A CN 202210654318 A CN202210654318 A CN 202210654318A CN 114852512 A CN114852512 A CN 114852512A
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- Prior art keywords
- film
- sealing
- packaging
- film sealing
- folded
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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
- B65D55/00—Accessories for container closures not otherwise provided for
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
Abstract
The invention belongs to the technical field of machining and manufacturing and film preparation, and provides a film sealing/packaging opening adopting a pre-folding structure. Compared with the traditional film sealing and packaging opening mode, the invention does not need to modify the film material to reduce the adhesion between films, does not need external assistance with higher interface viscosity to overcome the adhesion between films, has simple integral process, is compatible with the film sealing/packaging preparation process, is easy to realize, has low cost and good universality.
Description
Technical Field
The invention belongs to the technical field of machining and manufacturing, and relates to a film sealing/packaging opening adopting a pre-folding structure.
Technical Field
The film sealing/packaging is a behavior of sealing/packaging an object by using a low-price film, and has very wide application in aerospace films, energy sources, electronics and daily life, such as aerospace deployable film structures, household shopping film plastic bags and the like. Opening the film seal/package requires overcoming the adhesion between the films and allowing delamination between the film layers. The opening of the film sealing/packaging opening is completed by modifying the film material to reduce the interfacial viscosity between the films, but the modification of the film material involves chemical reaction and selection of novel materials, so that the cost is high, the preparation process is complex, and residual substances are easily caused. The film sealing/packaging opening is opened by adopting the external assistance of strong interface viscosity to contact with the outer side of the film and generate sliding displacement, so that the upper layer and the lower layer of the film are separated, but the auxiliary equipment with stronger interface viscosity than the film is required to separate the film layers, and certain limitation and use constraint are realized.
Disclosure of Invention
The invention provides a film sealing/packaging opening adopting a pre-folding structure aiming at the problems, the film sealing/packaging opening adopts a pre-folding mode, so that the quick debonding between film layers and the quick opening of the film sealing/packaging opening are realized, the material modification is not needed to reduce the interfacial viscosity of the film, and the external assistance of stronger interfacial viscosity is also not needed. The film sealing/packaging port has low price and good universality, is matched with sealing/packaging processes such as film blowing, calendering and flat extrusion in film preparation, and is suitable for various film sealing/packaging structures.
In order to achieve the purpose, the invention adopts the following technical scheme:
a film sealing/packaging opening with a pre-folding structure comprises an upper layer film and a lower layer film of blow molding shaped tubular films, wherein the corresponding parts of the upper layer film and the lower layer film are pre-folded in opposite directions. The pre-folded portion is located at the film sealing/wrapping aperture with the folding direction being perpendicular to the boundary line of the sealing/wrapping aperture.
Further, the length of the folded part of the upper and lower films is more than three times of the thickness of the films.
Further, the pre-folding structure may be a through-folding design or a gradual attenuation design.
Further, the film sealing/packaging opening can be double-layer or multi-layer.
In further features, the film sealing/packaging structure can be, but is not limited to, aerospace deployable films and film plastic bags.
A film sealing/packaging opening quick opening method based on a pre-folding mode comprises the following steps:
(1) in the process of preparing the film sealing/packaging structure, the film sealing/packaging structure is matched with a calendaring and extruding process, corresponding parts of an upper layer film and a lower layer film of the blow molding shaped tubular film are pre-folded, the pre-folding is preferentially arranged at the position of a film sealing/packaging opening, and the whole film structure can be in a through folding design or a gradually attenuated folding design.
Completing the film preparation;
(2) by gently pulling the film on both sides of the sealing/packaging structure during use, the friction/oscillation generated during unfolding of the pre-folded structure collapses and the oppositely directed folds cause the sealing/packaging opening to open rapidly. The pre-fold allows the film seal/package to be opened quickly as compared to conventional full-fit film seals/packages.
The invention realizes the interlayer separation of the film and the quick opening of the sealing/packaging opening, and has low requirement on the film material compared with the strategy of reducing the interfacial viscosity of the film by material modification; compared with the introduction of stronger interface viscosity external assistance, the invention has less limitation and good universality. The invention has simple process, low price and good universality, does not need material modification and stronger interface viscosity auxiliary requirements, is in fit with the film preparation process, and is suitable for a plurality of film sealing/packaging structures.
Drawings
FIG. 1 is a side view of a through-fold configuration of a film seal/package opening.
FIG. 2 is a side view of a film seal/package aperture attenuation fold configuration.
Figure 3 is a top view of a seal/package containing a pre-folded film.
FIG. 4 is a top view of a conventional film seal/package opening (without a pre-fold structure)
In the figure: 1 film seal/package structural body, 2 pre-fold crease, 3 two-sided crease.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in the figure, the upper layer film and the lower layer film are respectively folded in the preparation process; by gently pulling the film on both sides of the sealing/packaging structure during use, the friction/oscillation generated during unfolding of the pre-folded structure collapses and the oppositely directed folds cause the sealing/packaging opening to open rapidly. The pre-fold allows the film seal/package to be opened quickly as compared to conventional full-fit film seals/packages.
The film seal/package structure may be an aerospace blow deployable film structure. Film structures containing pre-folded creases are easier to unfold quickly than fully conformable, unfoldable film structures.
The film sealing/packaging opening can be a plastic packaging bag common in daily life. The conventional plastic packaging bag needs to adopt modified plastic with weak interfacial adhesion or use auxiliary materials with strong interfacial adhesion such as a hand wetting device (water-soaked sponge) to enable the packaging opening to be opened quickly. The film structure with the pre-folded crease can complete the interlayer separation of the films and the quick opening of the sealing/packaging opening by slightly pulling two sides of the film structure in use.
Claims (7)
1. A film sealing/packaging opening with a pre-folding structure is characterized in that the film sealing/packaging opening comprises an upper layer film and a lower layer film of blow molding shaped tubular films, and the corresponding parts of the upper layer film and the lower layer film are pre-folded in opposite directions; the pre-folded portion is located at the film sealing/wrapping aperture with the folding direction being perpendicular to the boundary line of the sealing/wrapping aperture.
2. A film sealing/wrapping aperture in a pre-folded configuration as claimed in claim 1, wherein said film sealing/wrapping aperture is opened by pulling the film sealing/wrapping aperture on both sides.
3. A film sealing/packaging opening in a pre-folded configuration according to claim 1, wherein the length of the folded portion of the upper and lower films is greater than three times the thickness of the films.
4. A film sealing/packaging aperture employing a pre-folded configuration as claimed in claim 1 wherein said pre-folded configuration is a through-fold design or a progressively attenuating fold design.
5. A film sealing/packaging opening using a pre-folded structure according to claim 1, wherein said film sealing/packaging opening is double-layered or multi-layered.
6. A film sealing/packaging opening using a pre-folded structure according to claim 1, wherein said film sealing/packaging structure is selected from the group consisting of, but not limited to, aerospace deployable films and film plastic bags.
7. A quick opening method of a film sealing/packaging opening based on a pre-folding mode is characterized by comprising the following steps:
(1) in the process of preparing the film sealing/packaging structure, the film sealing/packaging structure is matched with a calendaring and extruding process, corresponding parts of an upper layer film and a lower layer film of the blow molding shaped tubular film are pre-folded, the pre-folding is preferentially arranged at the position of a film sealing/packaging opening, and the film structure is integrally communicated with the folding design or adopts the gradually attenuated folding design;
(2) by gently pulling the film on both sides of the sealing/packaging structure during use, the friction/oscillation generated during unfolding of the pre-folded structure collapses and the oppositely directed folds cause the sealing/packaging opening to open rapidly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210654318.6A CN114852512A (en) | 2022-06-10 | 2022-06-10 | Film sealing/packaging opening adopting pre-folding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210654318.6A CN114852512A (en) | 2022-06-10 | 2022-06-10 | Film sealing/packaging opening adopting pre-folding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114852512A true CN114852512A (en) | 2022-08-05 |
Family
ID=82624815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210654318.6A Withdrawn CN114852512A (en) | 2022-06-10 | 2022-06-10 | Film sealing/packaging opening adopting pre-folding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114852512A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000309308A (en) * | 1999-04-28 | 2000-11-07 | Masayoshi Matsumoto | Tucking form for plastic film and plastic film tucking machine with the tucking form |
| CN2861038Y (en) * | 2005-11-16 | 2007-01-24 | 高火星 | Novel packaging bag for popcorn |
| CN201010138Y (en) * | 2007-03-23 | 2008-01-23 | 鹿纯桤 | Easily opened plastic bag |
| CN101670892A (en) * | 2004-08-25 | 2010-03-17 | 东洋制罐株式会社 | Plastic pouch and method of producing the same |
| JP2013028385A (en) * | 2011-07-29 | 2013-02-07 | Toppan Printing Co Ltd | Easily resealable and re-unsealable bag |
| CN104918767A (en) * | 2012-10-25 | 2015-09-16 | 格拉德产品公司 | Thermoplastic multi-ply film with metallic appearance |
| CN105905410A (en) * | 2016-05-18 | 2016-08-31 | 广德县七彩斑马包装科技有限公司 | Simple, convenient and safe war horse bag |
| CN105923243A (en) * | 2016-06-29 | 2016-09-07 | 石家庄康益包装有限公司 | Packaging bag capable of being opened quickly |
| US20210339914A1 (en) * | 2018-10-01 | 2021-11-04 | Hosokawa Yoko Co., Ltd. | Square-bottomed packaging bag, packaging body, and method of manufacturing square-bottomed packaging bag |
-
2022
- 2022-06-10 CN CN202210654318.6A patent/CN114852512A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000309308A (en) * | 1999-04-28 | 2000-11-07 | Masayoshi Matsumoto | Tucking form for plastic film and plastic film tucking machine with the tucking form |
| CN101670892A (en) * | 2004-08-25 | 2010-03-17 | 东洋制罐株式会社 | Plastic pouch and method of producing the same |
| CN2861038Y (en) * | 2005-11-16 | 2007-01-24 | 高火星 | Novel packaging bag for popcorn |
| CN201010138Y (en) * | 2007-03-23 | 2008-01-23 | 鹿纯桤 | Easily opened plastic bag |
| JP2013028385A (en) * | 2011-07-29 | 2013-02-07 | Toppan Printing Co Ltd | Easily resealable and re-unsealable bag |
| CN104918767A (en) * | 2012-10-25 | 2015-09-16 | 格拉德产品公司 | Thermoplastic multi-ply film with metallic appearance |
| CN105905410A (en) * | 2016-05-18 | 2016-08-31 | 广德县七彩斑马包装科技有限公司 | Simple, convenient and safe war horse bag |
| CN105923243A (en) * | 2016-06-29 | 2016-09-07 | 石家庄康益包装有限公司 | Packaging bag capable of being opened quickly |
| US20210339914A1 (en) * | 2018-10-01 | 2021-11-04 | Hosokawa Yoko Co., Ltd. | Square-bottomed packaging bag, packaging body, and method of manufacturing square-bottomed packaging bag |
Non-Patent Citations (1)
| Title |
|---|
| 李笑，李明: "折纸及其折痕设计研究综述", 《力学学报》 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220805 |