CN101992893A - Air package device with transverse air valve and use method thereof - Google Patents
Air package device with transverse air valve and use method thereof Download PDFInfo
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- CN101992893A CN101992893A CN2009100564836A CN200910056483A CN101992893A CN 101992893 A CN101992893 A CN 101992893A CN 2009100564836 A CN2009100564836 A CN 2009100564836A CN 200910056483 A CN200910056483 A CN 200910056483A CN 101992893 A CN101992893 A CN 101992893A
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Abstract
The invention relates to an air package device with a transverse air valve. A three-dimensional package body capable of sealing air is formed by two layers of thermoplastic films through secondary thermoplastic sealing, and the air package device comprises a plurality of independent sealing air chambers and a main passage, wherein the main passage is provided with an air inlet, each sealing air chamber is communicated with the main passage through a one-way valve air inlet at an air inlet sealing line part of the one-way valve formed by the two layers of one-way valve films, a plurality of outlet pre-setting points are arranged at the outlet of the one-way valve, the pre-setting points of the outlet of the one-way valve are discontinuous straight lines, and broken points in the middle of the straight lines provide air outlet passages for each one-way valve. The air package device of the invention can reduce the height of the one-way valve films because of the adoption of the transverse air valve in one aspect, and greatly save the cost of the one-way valve films. In addition, the universality of the transverse air value is high, and unlike the traditional one-way valve which needs to correspondingly use one mold according to the diameter of the air chambers, the package devices of air chambers in various widths can use one set of one-way valve mold, thus the cost of the mold is reduced.
Description
Technical field
The present invention relates to utilize the three-dimensional aeroseal packing device of self-adhering (check valve) technical design production; this device can use at electronic product; glass ware; precision instrumentation; workmanship, precious fragile such as printing consumables and safety guard-safeguard performance require than higher various fields.The present invention be a kind ofly have anti-extruding, anti-vibration, sealed damp-proof, anti-falling fallen and the novel environment friendly packing of integrated protection performance such as buffering, can be used as in the transportation protection, filling, the part of article or the partiting pad of significant points and the omnibearing buffering package of article or by printing direct use in the sale external packing as article.
Background technology
The trend of globalization of enterprise strengthens the transportation range of product from the grown place to area of consumption day by day, causes for the protective packaging demand in the transportation also fast-developing simultaneously.Traditional polystyrene foamed (EPS) and polyethylene foams (EPE) based article must use at manufacturer's foaming or through just being transported to the user after the processed, the bulky very inconvenience transportation and the storage of the foamed plastic after the moulding.The foaming in place class material that transports for convenience and develop mainly is to utilize the Polyurethane foam goods, expands and forms on the content next door and protect model.But the price of material is higher relatively and the equipment at scene had certain requirements simultaneously require to be not suitable for the inner packing of large-scale pipeline product such as electronic product at workman's efficient and working strength.Simultaneously, show serious many drawback days of polystyrene foamed (EPS) based article, become for the people all dislike " white pollution ".Relatively only at the buffer product of transit link short-term use, the offal treatment of permanent polyphenyl blister pack comes gross pollution for the environment bag.Burning produces noxious gas, and heap buries the destruction that produces geologic framework because of not corroding.The concern of government and customer's environmental pollution problem in recent years will be limited to the development of this series products.Simultaneously, packing in the market almost are limited by the bulky influence of packing itself invariably, traffic cost makes these materials closely to sell, thereby can't form scale and benefit.
Along with the fast development of soft-plastic material, make increasing industry can benefit with this material behavior the design that comes of bag and the expansion of function.Traditional gas flush packaging utilizes hot sealing process to form simple round dot (BUBBLE WRAP, bubble pad), block or cylindric usually.Bubble is paid somebody's debt and expected repayment later and can be transported by being packaged as coiled material, but other shape product must form air bag at the heat-sealing equipment that uses the on-site installation complexity.Because the protection effect and the shape-variable of this series products are limited, so operable field mostly is pad or the filling space is used.Simultaneously, to protect the gas time be not very long because the fugitiveness of the use of material and hot sealing process causes.Therefore, limited to for a long time always and utilize air as the development of the packaging product of buffer medium.
Walker in the document (1981) Official Gazette of the United State's Patent Office 4191211,4708167 valve body and the combinations that utilize soft-plastic material to make all on the books of Koyanagi (1987) Official Gazette of the United State's Patent Office are used for making as products such as water bag, coffee bag, balloon toys as plastic sheeting or rubber type of material.Simple softly mould the passage that structure can provide air admission or discharge but stop the seepage of liquid or gas or enter by this, forming one can store fluid or the storage space of energy deaeration.On the basis of this theory, use different materials to can be used for different fields such as life jacket and be used for preserving the sealing arrangement of fluid, as bladders.2005, the relevant feasibility study that utilizes air as buffering that Fu Jingfang delivers at " packing and food machinery " magazine at " Packaging Engineering " and Liu Gong etc. was for the invention provides good theoretical foundation.
On November 22nd, 2006, disclosed Chinese patent application 200510025833.4 disclosed a kind of self-adhesive nonreturn air package material and manufacture method thereof, this invention relates to a kind of self-adhesive nonreturn air package material and manufacture method thereof, these packing are made up of four layers of plastic sheeting, bonding through local heat-sealing, form the space that to deposit air, utilize the viscosity and the action of air pressure of film self, air can not be run spill, and in the lasting preservation in this space, air and film have been formed a kind of vibration resistance that has jointly, anti-extruding, the self-adhesive nonreturn air package material of functions such as protection against the tide.
On November 21st, 2007, disclosed Chinese patent application 200580016507.5 disclosed a kind of structure of air-packing device of the shock absorbing capability with improvement, and this device has the air-packing device of product shock absorbing capability, that be used for protecting container case of improvement.This air-packing device comprises: first and second plastic sheetings, thus they are produced a plurality of air chambers in the pre-position by bonding, and each air vessel has the air chamber that a plurality of serial connections link to each other; Be arranged on corresponding air vessel the entrance, be used to make pressurized air along forwards to a plurality of check valves that flow; With public ground of described a plurality of check valves bonded assembly air intake; Be formed on the heat-seal flanges on the lateral edges of air-packing device.Pass through post heat-seal treatment, predetermined point on the described air vessel and heat-seal flanges are bonded in together, thereby when air-packing device was charged into pressurized air, generation had container portions that is used to package the product in opening wherein and the cushion part that supports described container portions.
The check valve (air valve) of the described packing device of above-mentioned patent is that the two-layer heat sealing film heat-sealing by the belt body of two layers of unidirectional valve film and its both sides forms, be the scheme drawing of air-packing device before sealing of prior art as shown in Figure 1 without secondary, air is through admission port 1, enter main channel 2, then through entering each sealed air chamber 4, the entrance of each sealed air chamber 4 is provided with check valve 3, and air is sealed in the sealed air chamber 4.The check valve 3 of prior art is to be clipped in the bigger middle heat-sealing of thermoplastic film B1, B2 in both sides up and down that forms belt body by double-layer films A1, A2 to form, on admission port potted line 7, each check valve all has admission port 6, the bottom of check valve film A1 and A2 forms the check valve outlet passageway by a plurality of outlets preset 5 (similar smiling face's part among the figure) heat-sealing back.This is known technology on industry.
Fig. 2 is the scheme drawing at the check valve inlet place, upper end of check valve film A1 and A2, upper strata check valve film A1 and thermoplastic film B1 heat-sealing, check valve film A2 of lower floor and thermoplastic film B2 heat-sealing, the both sides heat-sealing of check valve film A1 and A2, the middle admission port 6 that forms check valve.Because being the four-level membrane heat-sealing, this check valve forms, the main channel is formed by two-layer thermoplastic film, therefore, check valve and main channel can only be arranged on a side end of sealed air chamber 4, when doubling secondary plastic packaging forms the U-shaped cover, in order to pack normal inflation, the height of two legs of U-shaped cover is the height of a check valve at least, and for a lot of volumes are not very big object, the height that the height of two legs of U-shaped cover need not a check valve gets final product meet requirements, and like this, we still adopt the invisible central problem that produces excessive packaging of this packing, simultaneously, increased the cost of packing, in addition, because check valve and double-layer films A1, A2 is related, the inflation back is because the inequality of being bullied may cause the potential danger of leaking gas; In addition, because the outlet preset 5 of check valve is similar smiling face's shape, make the height basic fixed of check valve.
Summary of the invention
For addressing the above problem, the invention provides a kind of air-packing device of horizontal air valve, laterally air valve can be arranged on any position of sealed air chamber, simultaneously, is not subjected to any pulling force after inflation, thereby greatly reduces the danger factor of product; Horizontal in addition air valve can shorten the height of check valve film, has significantly reduced cost, and, horizontal air valve highly versatile, the packing device of multiple width air chamber can use a cover check valve mould, has reduced the cost of mould, has further reduced the productive costs of packing device.
For achieving the above object, the present invention adopts following technical scheme:
A kind of air-packing device with horizontal air valve, form the volumetric packaging body of a salable air through secondary thermoplastic envelope by two-layer thermoplastic film, comprise a plurality of independently sealed air chamber and main channel, there is an admission port main channel, each sealed air chamber is by the check valve inlet and the main channel UNICOM at the admission port potted line place of the check valve that is made of two layers of unidirectional valve film, the check valve exit has a plurality of outlets preset, it is characterized in that, described check valve outlet preset is for being interrupted straight line, and the breakpoint in the middle of the straight line provides outlet passageway for each check valve.
Wherein, preferably, described interruption straight line is alternately formed for the length line segment.
Wherein, preferably, described have two breakpoints in each sealed air chamber.
Wherein, preferably, the outlet preset is to be interrupted straight line more than two and to be arranged in parallel.
Wherein, preferably, described interruption straight line alternative arrangement more than two makes the tunnel-shaped of giving vent to anger become S shape.
Wherein, preferably, also comprise the tangent line of check valve inlet potted line below and end the line that overflows, described tangent line is on that layer thermoplastic film that forms check valve, be the line of cut that is interrupted, end the line that overflows and be positioned at the tangent line below, above-mentioned that layer thermoplastic film and adjacent check valve film are sealed, prevent that the air that charges into from overflowing from tangent line.
Described check valve and for the gas filed main channel of described check valve is to be enclosed in wherein one deck thermoplastic film thermoplastic of packaging body by double-layer films to form can be arranged on any position of sealed air chamber.
Wherein, preferably, described check valve and main channel are arranged on the middle part of sealed air chamber.
A kind of air-packing device with horizontal air valve, form the volumetric packaging body of a salable air through secondary thermoplastic envelope by two-layer thermoplastic film, comprise a plurality of independently sealed air chamber and main channel, there is an admission port main channel, each sealed air chamber is by the check valve inlet and the main channel UNICOM at the admission port potted line place of the check valve that is made of two layers of unidirectional valve film, the check valve exit has a plurality of outlets preset, it is characterized in that, described check valve outlet preset is for being interrupted straight line, breakpoint in the middle of the straight line provides outlet passageway for each check valve, after this air-packing device with horizontal air valve is finished inflation, with the sealing of main channel admission port, with the back flow of gas that prevents to charge into.
Air-packing device of the present invention, on the one hand, owing to adopted horizontal air valve, the height of check valve film can be shortened, saved the cost of check valve film greatly, simultaneously, horizontal air valve highly versatile, the packing device of the air chamber of multiple width can use a cover check valve mould, do not resemble common check valve, to use a kind of mould according to the air chamber diameter is corresponding, thereby reduce the cost of mould, further reduce the productive costs of packing device; On the other hand, owing to check valve and main channel are that wherein one deck thermoplastic film thermoplastic by double-layer films and packaging body is enclosed in together and forms, it doesn't matter with another layer thermoplastic film, therefore, can be arranged on any position of sealed air chamber; Simultaneously, because two layers of unidirectional valve film only is fixed on the arbitrary layer of thermoplastic film, after inflation was finished, check valve film was fitted on this layer thermoplastic film, does not bear any pulling force, did not therefore have the danger of tearing, and had increased the safety of packing device greatly.
Thereby can lower transport space and the too high problem of cost solution packing long-distance transportation cost greatly by the method for using on-the-spot straight forming the user.Utilize soft-plastic material and make product smooth fully before not using by prefabricated design, utilize when the user uses air make this material fast, stereo shaping and around need protection product, form fail-safe structure.Compared with prior art, air-isolated packing material of the present invention has anti-extruding, anti-vibration, anti-falling fallen and good integrated protection performance such as buffering, can be used as the filling wrapper of article, the omnibearing external packing of the part of article or the partiting pad of significant points and article is used.
Description of drawings
Fig. 1 is the preceding scheme drawing of not secondary heat-sealing of the air-packing device of prior art;
Fig. 2 is the scheme drawing at the check valve inlet plastic packaging line place among Fig. 1;
Fig. 3 is the embodiment scheme drawing before the secondary heat-sealing of the air-packing device with horizontal air valve of the present invention;
Fig. 4 is another embodiment scheme drawing before the secondary heat-sealing of the air-packing device with horizontal air valve of the present invention;
Fig. 5 is the 3rd embodiment scheme drawing before the secondary heat-sealing of the air-packing device with horizontal air valve of the present invention;
Fig. 6 is the cutaway view along the B-B line of the air-packing device of Fig. 5;
Fig. 7 is the enlarged diagram at C place of the air-packing device of Fig. 6.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the air-packing device with horizontal air valve of the present invention is further described.
Once heat-sealing is meant two-layer thermoplastic film and check valve is formed the process that can deposit the plane bag of air through the thermoplastic envelope, the secondary heat-sealing be meant with the folding back of half-blank after the heat-sealing once along secondary heat-sealing line once more the thermoplastic envelope form the process of the three-dimensional bag that can hold object.
Fig. 3 is an embodiment with air-packing device of horizontal air valve of the present invention, be that with the difference of the packing device of Fig. 1 it has adopted horizontal air valve, as shown in Figure 3, check valve outlet preset 35a is long horizontal line section, preset 35b is short horizontal line section, and preset 35a and 35b are arranged alternately, and forms the interruption straight line 35 of a level, being interrupted the point of discontinuity of straight line 35 in each sealed air chamber has two, can guarantee that like this time of air inlet can be not oversize.And present embodiment has used 35, three interruptions of interruption straight line straight line of three parallel interval layouts to be staggered, and makes the point of discontinuity that is interrupted straight line be linked to be the outlet passageway of S shape, can play better sealing function like this, prevents that gas from oppositely overflowing from check valve.
Fig. 4 is an alternative embodiment of the invention, and the difference of itself and embodiment shown in Figure 3 is that used four to be interrupted straight lines, the preset 35a of length wherein and short preset 35b alignment are arranged, and the outlet passageway that the point of discontinuity between the preset is formed is a straight line.
Shown in Fig. 5-7 the 3rd embodiment of the present invention, the difference of itself and embodiment shown in Figure 3 is, adopt the check valve of horizontal air valve to be arranged on the centre of air-packing device, check valve among the figure is similar to shown in Figure 2, difference is two layers of unidirectional valve film is fixed therein heat-sealing formation on one deck thermoplastic film by heat-sealing line and preset, because this check valve only is connected with one deck thermoplastic film, shown in Fig. 6 and 7, therefore can be placed on the optional position of air-packing device.In addition, below admission port potted line 7, also be disposed with the tangent line parallel 56 and end the line 57 that overflows with inflation inlet potted line 7, tangent line 56 is through tracks of the interruption of processing on the thermoplastic film B1 of upper strata with serrated knife, after packing is used, can open easily at tangent line 56 places, to emit the gas in the packing device, make packing device be returned to the preceding state that do not use, be convenient to reclaim; Avoid the client to destroy packaging bag and bring simultaneously and cause the easy impaired potential threat of packed article, with the package design hommization at sharp objects such as utilizing other cutters.The line 57 that end to overflow is potted lines that upper strata thermoplastic film B1 and check valve film A1 are fixed together, and is located at the below of tangent line 56, and the gas that is used to prevent to charge in the packing device overflows from the otch of tangent line 56.
Embodiment described in the invention is a preferred embodiment, and check valve can be arranged on any position of the sealed air chamber of thermoplastic film, and quantity can be provided with according to required inflationtime situation.The distance of point of discontinuity can be provided with as required,, should guarantee that intake period obtains the better seal effect simultaneously again, the too little speed that can influence air inlet, too conference increases the danger of gas leakage.
The length of preset 35a and 35b can be provided with according to actual needs, be interrupted straight line and also can adopt other, as other form such as irregular disorderly point or equal length preset etc., guarantee that generally it is good that two point of discontinuitys are arranged in the sealed air chamber, a point of discontinuity can make the gas filed time increase.Also can adopt plural point of discontinuity.The quantity of being interrupted straight line also can for one, more than two or three, preferred three, being interrupted straight line can influence sealing effectiveness very little, gas is overflowed, be interrupted straight line and can increase the friendship inflationtime too much, increase the length of check valve film simultaneously, increase unnecessary cost.
The packing device of secondary plastic packaging is not provided with the inflection point as the case may be when a plastic packaging, comprises that by forming behind the secondary plastic packaging U-shaped is enclosed within interior various forms of air-packing devices.
Air-packing device with horizontal air valve of the present invention, a lot of advantages is arranged, but the problem that gas overflows can appear in long-time use after inflation, therefore, uses air-packing device of the present invention, put into packing at need packing object, after finishing inflation, the admission port in the main channel can increase the admission port potted line, and whole packing device is sealed fully, so both can save the cost of packing device greatly, and also can reach the effect of long-time use simultaneously.
Utilize above invention design technology project, the functional packing material that can produce all kinds of shapes as lucifuge, waterproof, protection against the tide, anti-wearly, anti-fall, antidetonation, as various products such as sealing bag, U type bags.Simultaneously, can provide that other function such as electrostatic prevention, conduction, antidetonation cushion, resistance to wear, withstanding corrosion, rust-proofing, can print etc. by the characteristic of utilizing plastic sheeting.Design distinguished of the present invention and traditional in the past method that prevents air leaks, need not add external auxiliary device in addition, only rely on inside and outside functional resin film through special processing, through a series of simple local heat-seal bond, air is deposited in for a long time in a fully enclosed space, utilize this principle, can produce a series of Related products and the derived product of functional form from mucous membrane air block volumetric packaging material.Any by changing the shape of heat-sealing, folding mode, the specification of heat-sealing, position or the profile and the function that make product by selecting for use of different cuttings and different plastic sheeting characteristics change, as long as can reach the object of the invention, all belong to category of the present invention.
, but should be understood that under the situation that does not break away from relevant protection domain defined by the claims that those skilled in the art can make change and/or revise according to inventive embodiment describing the present invention property and nonrestrictive description.
Claims (10)
1. air-packing device with horizontal air valve, form the volumetric packaging body of a salable air through secondary thermoplastic envelope by two-layer thermoplastic film, comprise a plurality of independently sealed air chamber and main channel, there is an admission port main channel, each sealed air chamber is by the check valve inlet and the main channel UNICOM at the admission port potted line place of the check valve that is made of two layers of unidirectional valve film, the check valve exit has a plurality of outlets preset, it is characterized in that, described check valve outlet preset is for being interrupted straight line, and the breakpoint in the middle of the straight line provides outlet passageway for each check valve.
2. the air-packing device with horizontal air valve according to claim 1 is characterized in that, described interruption straight line is alternately formed for the length line segment.
3. the air-packing device with horizontal air valve according to claim 1 and 2 is characterized in that, described have two breakpoints in each sealed air chamber.
4. the air-packing device with horizontal air valve according to claim 3 is characterized in that, described outlet preset is to be interrupted straight line more than two and to be arranged in parallel.
5. the air-packing device with horizontal air valve according to claim 4 is characterized in that, described interruption straight line alternative arrangement more than two makes the tunnel-shaped of giving vent to anger become S shape.
6. the air-packing device with horizontal air valve according to claim 1 and 2, it is characterized in that, also comprise the tangent line of check valve inlet potted line below and end the line that overflows, described tangent line is formed on that layer thermoplastic film of check valve, be the line of cut that is interrupted, end the line that overflows and be positioned at the tangent line below, above-mentioned that layer thermoplastic film and adjacent check valve film are sealed, prevent that the air that charges into from overflowing from tangent line.
7. the air-packing device with horizontal air valve according to claim 1 and 2, it is characterized in that, described check valve and for the gas filed main channel of described check valve is to be enclosed in wherein one deck thermoplastic film thermoplastic of packaging body by double-layer films to form can be arranged on any position of sealed air chamber.
8. using method with air-packing device of horizontal air valve, this air-packing device is formed the volumetric packaging body of a salable air through secondary thermoplastic envelope by two-layer thermoplastic film, comprise a plurality of independently sealed air chamber and main channel, there is an admission port main channel, each sealed air chamber is by the check valve inlet and the main channel UNICOM at the admission port potted line place of the check valve that is made of two layers of unidirectional valve film, the check valve exit has a plurality of outlets preset, it is characterized in that, the straight line of described check valve outlet preset for being interrupted, breakpoint in the middle of the straight line provides outlet passageway for each check valve, after this air-packing device with horizontal air valve is finished inflation, with the sealing of main channel admission port, with the back flow of gas that prevents to charge into.
9. the using method with air-packing device of horizontal air valve according to claim 8, it is characterized in that, described check valve and for the gas filed main channel of described check valve is to be enclosed in wherein one deck thermoplastic film thermoplastic of packaging body by double-layer films to form can be arranged on any position of sealed air chamber.
10. according to Claim 8 or 9 described using method with air-packing device of horizontal air valve, it is characterized in that, described air-packing device also comprises the tangent line of check valve inlet potted line below and ends the line that overflows, described tangent line is formed on that layer thermoplastic film of check valve, be the line of cut that is interrupted, end the line that overflows and be positioned at the tangent line below, above-mentioned that layer thermoplastic film and adjacent check valve film are sealed, prevent that the air that charges into from overflowing from tangent line.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910056483.6A CN101992893B (en) | 2009-08-14 | 2009-08-14 | A kind of air-packing device and using method thereof with transverse air valves |
| CN201510243666.4A CN104960772B (en) | 2009-08-14 | 2009-08-14 | A kind of air-packing device and its application method with transverse air valves |
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| CN200910056483.6A CN101992893B (en) | 2009-08-14 | 2009-08-14 | A kind of air-packing device and using method thereof with transverse air valves |
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| CN201510243666.4A Division CN104960772B (en) | 2009-08-14 | 2009-08-14 | A kind of air-packing device and its application method with transverse air valves |
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| CN200910056483.6A Active CN101992893B (en) | 2009-08-14 | 2009-08-14 | A kind of air-packing device and using method thereof with transverse air valves |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104943985A (en) * | 2015-05-12 | 2015-09-30 | 张少康 | Leakage-proof thin membrane air bag package pad and air bag formation method |
| CN105346851A (en) * | 2014-11-21 | 2016-02-24 | 上海艾尔贝包装科技发展有限公司 | Linear air valve type air packaging device and manufacturing method thereof |
| CN109707879A (en) * | 2019-03-01 | 2019-05-03 | 天津茂创科技发展有限公司 | A kind of gas check valve and its application in gas chamber packaging structure |
| CN110116854A (en) * | 2019-06-05 | 2019-08-13 | 东莞市银滨实业有限公司 | A kind of box buffering box structure |
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| CN113458910B (en) * | 2021-07-16 | 2022-08-19 | 中国科学院长春光学精密机械与物理研究所 | Polishing head and machine tool equipment adopting same |
Citations (4)
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| CN201021385Y (en) * | 2006-08-01 | 2008-02-13 | 郑澄 | Charging cushion with air supply channel at the center |
| US20080193055A1 (en) * | 2007-02-12 | 2008-08-14 | Cheng-Yung Chen | Inflatable bag for bottles packaging |
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| CN105346851A (en) * | 2014-11-21 | 2016-02-24 | 上海艾尔贝包装科技发展有限公司 | Linear air valve type air packaging device and manufacturing method thereof |
| CN104943985A (en) * | 2015-05-12 | 2015-09-30 | 张少康 | Leakage-proof thin membrane air bag package pad and air bag formation method |
| CN109707879A (en) * | 2019-03-01 | 2019-05-03 | 天津茂创科技发展有限公司 | A kind of gas check valve and its application in gas chamber packaging structure |
| CN110116854A (en) * | 2019-06-05 | 2019-08-13 | 东莞市银滨实业有限公司 | A kind of box buffering box structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104960772B (en) | 2017-10-20 |
| CN101992893B (en) | 2015-08-12 |
| CN104960772A (en) | 2015-10-07 |
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Owner name: SHANGHAI AIERBEI PACKAGING TECHNOLOGY DEVELOPMENT Free format text: FORMER OWNER: SHANGHAI NILU INTERNATIONAL IMPORT + EXPORT CO., LTD. Effective date: 20121206 |
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Denomination of invention: An air packaging device with a transverse air valve and its usage method Granted publication date: 20150812 Pledgee: Bank of Shanghai Co.,Ltd. Jing'an Sub branch Pledgor: SHANGHAI AIR-PAQ COMPOSITE MATERIAL Co.,Ltd. Registration number: Y2024310000118 |
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