CN108263737A - A kind of high exhaust and moisture-proof new structure - Google Patents
A kind of high exhaust and moisture-proof new structure Download PDFInfo
- Publication number
- CN108263737A CN108263737A CN201611254655.7A CN201611254655A CN108263737A CN 108263737 A CN108263737 A CN 108263737A CN 201611254655 A CN201611254655 A CN 201611254655A CN 108263737 A CN108263737 A CN 108263737A
- Authority
- CN
- China
- Prior art keywords
- bag body
- inner layer
- moisture
- barrier flaps
- row stomata
- 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.)
- Pending
Links
Classifications
-
- 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
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
- B65D31/02—Bags or like containers made of paper and having structural provision for thickness of contents with laminated walls
-
- 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
- B65D33/01—Ventilation or drainage of 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
- 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
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
- B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
- B65D81/261—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for draining or collecting liquids without absorbing them
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The invention discloses a kind of high exhaust and moisture-proof new structures, and the structure setting is in the overlapping region of one of plane side of packaging bag；The structure includes two layers bag of body, one layer of barrier flaps；The outer bag body includes flange foldable structure and first row stomata；The first row stomata is set to the position of outer bag body；The inner layer bag body includes bonded structure, second row stomata and anti-sticking structure；The bonded structure is Nian Jie with outer bag body continuity；The second row stomata is set to the head position of inner layer bag body, and connects the exhaust passage in overlapping region；The anti-sticking structure is set to the intermediate position of inner layer bag body；The barrier flaps and outer bag body or inner layer bag body bonding connection；The present invention is applied on combined package bag, can reach similar exhaust rate under drilling technology, and the larger moisture resistance for improving whole bag and the resistance to of whole bag fall intensity under the premise of without being punched to bag body.
Description
Technical field
The present invention relates to a kind of new structure more particularly to a kind of high exhaust and moisture-proof new structure, the new structures
With height exhaust, moisture-proof double-deck function, belong to nano-powder high molecular material production packing technique field.
Background technology
At present, plastics moisture-proof, barrier properties excellent possessed by packaging bag again, make it have in industries such as food, chemical industry
It is widely applied, but since its bag of body venting quality is poor, its application field is made to be confined to the filling neck of the non-pneumatic transmission such as bulky grain and slice
The application in domain, and be mainly then limited by very large using plastic packaging bag using the filling building trade of pneumatic transmission.
Though a bag body venting quality can be greatly improved by being punched to bag body, existing reduces bag body intensity, greatly reduces
The problems such as whole bag humidity resistance and granular material leak, and common edge of a knife exhaust air technique is used, exhaust efficiency is very low, and according to
It is old there are moisture resistance reduce and material from labyrinth type notch leak equivalent risk.
Invention content
The present invention is too low using common edge of a knife exhaust efficiency in order to solve, and uses the punching of bag body then whole bag moisture resistance and bag
Body intensity can be reduced greatly, provide a kind of novel high exhaust and moisture-proof exhaust structure.
To achieve the above object, the technical solution adopted by the present invention is that：
A kind of high exhaust and moisture-proof new structure, the structure setting is in the overlapping region of one of plane side of packaging bag
It is interior；It is characterized in that：The structure includes outer bag body, barrier flaps and inner layer bag body；The barrier flaps are set to outer bag body
Between inner layer bag body, with outer bag body or inner layer bag body bonding connection；The exhaust for exhaust is equipped in the outer bag body
Hole is first row stomata；Exhaust passage also is provided in the overlapping region；The exhaust passage is connected with first row stomata；
The gas vent for exhaust also is provided with the inner layer bag, is second row stomata, the first row stomata and exhaust passage phase
Connection；The intermediate position of the inner layer bag body is equipped with anti-sticking structure.
It being further improved, the first row stomata is set to the bottom position of outer bag body, and quantity is greater than or equal to 1~
5.
It being further improved, the second row stomata is set to the head position of inner layer bag body, and quantity is greater than or equal to 1~
5.
It is further improved, the outer bag body, inner layer bag body are Polythene Bag body, Polypropylene Bag body or compound membrane bag
Body.
It is further improved, the edge of the outer bag body is equipped with flange foldable structure；The width of the flange foldable structure
Degree is greater than or equal to 2mm.
It is further improved, the barrier flaps are non-woven fabrics barrier flaps, gas-permeable paper barrier flaps, the plastic film barrier punched
Piece, chemical fibre object barrier flaps or the barrier flaps made of cotton/fiber crops/woolens species soft gas permeable material.
It being further improved, the width of the structure is 20~200mm, length is 300~1200mm；The structure it is specific
Depending on package length and width, position is located at the side of packaging bag for length and span.
Compared with prior art, using the above scheme, the beneficial effects of the invention are as follows：The present invention is passed through using two layers bag of body
It is processed to form gas vent in specific position, edge carries out the flanging process of one fixed width to increase channel width, bag to bag at one's side
It is glutinous to prevent channel from gluing that body carries out release treatment；Packaging bag exhaust rate using the structure is the 2 times or more of common edge of a knife exhaust,
Its exhaust effect and bag body punch it is close, and the problems such as solve bag body moisture resistance and strength reduction simultaneously.
Description of the drawings
Fig. 1 is high exhaust and moisture-proof construction front view.
Fig. 2 is high exhaust and moisture-proof construction sectional view.
Fig. 3 is high exhaust and moisture-proof construction partial enlarged view.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of high exhaust and moisture-proof new structure, the structure setting in packaging bag one of them is flat
In the size page overlapping region of side；The structure includes outer bag body 1-3, barrier flaps 1-2 and inner layer bag body 1-4；The resistance
Partition 1-2 is set between outer bag body 1-3 and inner layer bag body 1-4, with outer bag body 1-3 or inner layer bag body 1-4 bonding connections；
The outer bag body and inner layer bag body bonding connection.
Embodiment one,
In structure of the present invention, as shown in Figure 1 and Figure 2, the packaging bag is square bag body, including bag body 1；The bag body 1 wraps
Include upper bottom surface, bottom surface, preceding plane side or rear plane side；The overlapping region is set to preceding plane side or rear plane side；In Fig. 1
In, the overlapping region is located at the preceding plane side of bag body 1；Exhaust passage is equipped in the fold domain, is exhaust passage；This
Bag body in embodiment further includes a valve mouth structure；The valve mouth structure is set to upper bottom surface, and with upper bottom surface bonding connection.
Preferably, the bag body 1 is Polythene Bag body, Polypropylene Bag body or paper-plastic composite film bag body；Polyethylene (PE) gathers
The materials such as propylene (PP), paper-plastic composite film bag body are the common used materials for making plastic packaging bag.
In the present embodiment, the barrier flaps 1-2 is set on outer bag body 1-3, and company Nian Jie with outer bag body 1-3
It connects；Preferably, the barrier flaps 1-2 is with height exhaust, moisture-proof and material barriers function barrier flaps；Specifically, the resistance
Partition 1-2 be non-woven fabrics barrier flaps, gas-permeable paper barrier flaps, punching plastic film barrier flaps, chemical fibre object barrier flaps or by
Cotton/fiber crops/barrier flaps made of woolens species soft gas permeable material, why select these materials made of barrier flaps, be because
There is ventilative, moisture-proof and material iris action for them；In the implementation case, there is high exhaust, moisture-proof and material barriers function
Barrier flaps 1-2 select non-woven fabrics, barrier flaps 1-2 not only have splendid air permeability effect, it may have good material barrier property
And moisture resistance.
The outer bag body 1-3 includes flange foldable structure 1-5；The flange foldable structure is set to outer bag body 1-3
A side on；Preferably, the width of the flange foldable structure 1-5 is greater than or equal to 2mm.
Preferably, outer bag body 1-3 is Polythene Bag body, Polypropylene Bag body or compound membrane bag body；
The bottom position of the outer bag body 1-3 is equipped with gas vent, is first row stomata 1-6；The first row stomata 1-6 is with setting
The exhaust passage being placed in overlapping region is connected.
The inner layer bag body 1-4 includes two bonded structures, anti-sticking structure 1-9；The bonded structure is respectively first viscous
Junction structure 1-7, the second bonded structure 1-10；In the first bonded structure 1-7 and the second bonded structure 1-10 is respectively arranged at
On the two sides of layer bag body 1-4；The inner layer bag body 1-4 respectively by the first bonded structure 1-7, the second bonded structure 1-10 with
Outer bag body 1-3 is bonded into Line Continuity, so as to which inner layer bag body 1-4 and outer bag body 1-3 be linked together.
Preferably, inner layer bag body 1-4 is Polythene Bag body, Polypropylene Bag body or compound membrane bag body.
Several rows of stomata is additionally provided in the inner layer bag body 1-4, is second row stomata 1-8；The second row stomata 1-8 is set
The head position of inner layer bag body 1-4 is placed in, and connects the exhaust passage in overlapping region.
Preferably, the first row stomata 1-6 quantity is also greater than or equal to 1~5；The second row stomata 1-8 amounts
More than or equal to 1~5；By the way that hole technique is exhausted with interior outer bag so that gas can be from second row when filling
Stomata 1-8 enters, and by the exhaust passage in overlapping region, through being discharged at first row stomata 1-6, reaches exhaust effect.
The second row stomata 1-8 is arranged on the head position of inner layer bag body 1-4, during ensureing filling, second row stomata
1-8 can be closed in the last moment that material is filled, and be set to the first row stomata 1-6 on outer bag body 1-3 then without specific position
It is required that.
The anti-sticking structure 1-9 is set to the intermediate position of inner layer bag body 1-4；Anti-sticking structure 1-9 is used to prevent channel
It is viscous glutinous.
The edge of two sides of the inner layer bag body 1-4 forms the flange of one fixed width by flanging process, in this way
Be conducive to increase the width of the exhaust passage in overlapping region.
The length of the barrier flaps 1-2 is greater than or equal to the length of first row stomata 1-6 or second row stomata 1-8；It is wide
Width of the degree more than or equal to first row stomata 1-6 or second row stomata 1-8.
Preferably, the first row stomata 1-6, second row stomata 1-8 be blade type mouth, it is cross bore, micro-hole, quincunx
Hole or polygonal hole.
Overlapping region continuous sealing is bonded by the edge of the structure by hot melt adhesive or heat-sealable way；Preferably, institute
The width for stating structure is 20~200mm, and length is 300~1200mm；The width of the exhaust passage is 10~190mm.
The bonding of a side of the bag body 1 is bonded after using flange, and bonding location is big apart from flange back edge distance
In or equal to 2mm, overlapping region is allowed in this way and is heaved in inflation, increases the volume of exhaust passage.
In the present embodiment, the bag body 1 has also carried out anti-sticking process, i.e., using special technique and adhesive
Release treatment is carried out, for example material is embossed or upper anti-stick coating etc..
The anti-sticking structure for surface treatments such as the embossing of bag body, anti-stick coatings or adds in filler in its channel, fills out
It can be that rope yarn, barrier flaps etc. do not hinder material of the gas by channel to fill object.
Fig. 2, Fig. 3 are the partial structurtes enlarged drawing of structure of the present invention；Wherein anti-sticking structure 1-9 is embossed for bag body and tightrope is prevented
It is viscous, quickly gas in bag can be discharged.
As shown in FIG. 1 to 3, in the implementation case, material enters packaging bag, gas together with compressed air by valve port
Enter exhaust passage with the second row stomata 1-8 of partial material inner layer bag body 1-4 with this configuration, be provided with flange foldable structure
The outer bag body 1-3 of 1-5 since gas pressure becomes larger exhaust passage volume there is high ventilative, moisture-proof and barriers function to obstruct
Piece 1-2 obstructs nearly all material into exhaust passage and air is allowed freely to discharge, and passes through the first exhaust of outer bag body 1-3
Outside hole 1-6 discharge bags, reach high-efficiency exhaust effect, the second row stomata 1-8 of inner layer bag body 1-4 is located at bag body head, only works as filling
After the completion of attaching is near, gas vent just can be by feed blocking, and filling completion at this time, entire pouring process, packaging bag exhaust rate is not
Become.
Embodiment 2
What the present embodiment was different from the first embodiment is in, and the barrier flaps 1-2 is set on inner layer bag body 1-4, and and internal layer
Bag body 1-4 bonding connections；Other parts are identical with the first embodiment in the present embodiment, so being not repeated.
Embodiment 3
What the present embodiment was different from the first embodiment is in, and in the present embodiment, the bag body 1 is cartridge type bag body, including two
Plane side, the structure setting in the size page fold domain of one of plane side of the cartridge type bag body, the structure with
The outside bonding connection of cartridge type bag body；The barrier flaps are set in the overlapping region, and are connected with the outer bag body of the structure
It connects；Other parts are identical with the first embodiment in the present embodiment, so being not repeated.
Embodiment 4
The present embodiment exists with 3rd embodiment difference, has high exhaust, moisture-proof and barriers function resistance in the implementation case
Partition is set to inner layer bag body 4, with inner layer bag bonding connection；The other parts of the implementation case are identical with case three.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that these
It is merely illustrative of, protection scope of the present invention is defined by the appended claims.
The present invention is not limited to above-mentioned specific embodiment, those of ordinary skill in the art from above-mentioned design,
Without performing creative labour, made various transformation are within the scope of the present invention.
Claims (7)
1. a kind of high exhaust and moisture-proof new structure, the structure setting is in the overlay region of one of plane side of packaging bag
In domain；It is characterized in that：The structure includes outer bag body, barrier flaps and inner layer bag body；The barrier flaps are set to outer bag
Between body and inner layer bag body, with outer bag body or inner layer bag body bonding connection；The row for exhaust is equipped in the outer bag body
Stomata is first row stomata；Exhaust passage also is provided in the overlapping region；The exhaust passage is connected with first row stomata
It connects；The gas vent for exhaust also is provided with the inner layer bag, is second row stomata, the first row stomata and exhaust passage
It is connected；The intermediate position of the inner layer bag body is equipped with anti-sticking structure.
2. a kind of high exhaust according to claim 1 and moisture-proof new structure, it is characterised in that：The first row stomata
The bottom position of outer bag body is set to, quantity is greater than or equal to 1~5.
3. a kind of high exhaust according to claim 1 and moisture-proof new structure, it is characterised in that：The second row stomata
The head position of inner layer bag body is set to, quantity is greater than or equal to 1~5.
4. a kind of high exhaust according to claim 1 and moisture-proof new structure, it is characterised in that：The outer bag body,
Inner layer bag body is Polythene Bag body, Polypropylene Bag body or compound membrane bag body.
5. a kind of high exhaust according to claim 1 and moisture-proof new structure, it is characterised in that：The outer bag body
Edge is equipped with flange foldable structure；The width of the flange foldable structure is greater than or equal to 2mm.
6. a kind of high exhaust according to claim 1 and moisture-proof new structure, it is characterised in that：The barrier flaps are nothing
Woven fabric barrier flaps, gas-permeable paper barrier flaps, the plastic film barrier flaps of punching, chemical fibre object barrier flaps or by cotton/fiber crops/woolens species
Barrier flaps made of soft gas permeable material.
7. a kind of high exhaust according to claim 1 and moisture-proof new structure, it is characterised in that：The width of the structure
For 20~200mm, length is 300~1200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611254655.7A CN108263737A (en) | 2016-12-30 | 2016-12-30 | A kind of high exhaust and moisture-proof new structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611254655.7A CN108263737A (en) | 2016-12-30 | 2016-12-30 | A kind of high exhaust and moisture-proof new structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108263737A true CN108263737A (en) | 2018-07-10 |
Family
ID=62754545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611254655.7A Pending CN108263737A (en) | 2016-12-30 | 2016-12-30 | A kind of high exhaust and moisture-proof new structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108263737A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116373024A (en) * | 2023-06-05 | 2023-07-04 | 南京沪汇包装科技有限公司 | Intelligent positioning analysis method, system and medium for hole site of industrial packaging bag |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2025894A (en) * | 1978-06-16 | 1980-01-30 | Perrier Heinz Sa | Mushroom spawn bag |
| CN2312185Y (en) * | 1997-10-16 | 1999-03-31 | 郑州铝城实业开发总公司水泥纸袋厂 | Double layer, ventilation and moistureproof type aluminium oxide package bag |
| CN2875969Y (en) * | 2006-03-13 | 2007-03-07 | 上海紫江彩印包装有限公司 | Unidirectional air permeability packaging bag |
| CN101223084A (en) * | 2005-07-08 | 2008-07-16 | 施塔林格有限公司 | Bag capable of deflating |
| CN201777489U (en) * | 2010-10-18 | 2011-03-30 | 上海艾录纸包装有限公司 | Valve-port paper bag with misplaced punching structure |
| CN103863671A (en) * | 2012-12-07 | 2014-06-18 | 上海艾录纸包装有限公司 | Valve port paper bag for packaging nanometer powder |
| CN206537665U (en) * | 2016-12-30 | 2017-10-03 | 上海艾录包装股份有限公司 | A kind of high exhaust and the new structure of protection against the tide |
-
2016
- 2016-12-30 CN CN201611254655.7A patent/CN108263737A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2025894A (en) * | 1978-06-16 | 1980-01-30 | Perrier Heinz Sa | Mushroom spawn bag |
| CN2312185Y (en) * | 1997-10-16 | 1999-03-31 | 郑州铝城实业开发总公司水泥纸袋厂 | Double layer, ventilation and moistureproof type aluminium oxide package bag |
| CN101223084A (en) * | 2005-07-08 | 2008-07-16 | 施塔林格有限公司 | Bag capable of deflating |
| CN2875969Y (en) * | 2006-03-13 | 2007-03-07 | 上海紫江彩印包装有限公司 | Unidirectional air permeability packaging bag |
| CN201777489U (en) * | 2010-10-18 | 2011-03-30 | 上海艾录纸包装有限公司 | Valve-port paper bag with misplaced punching structure |
| CN103863671A (en) * | 2012-12-07 | 2014-06-18 | 上海艾录纸包装有限公司 | Valve port paper bag for packaging nanometer powder |
| CN206537665U (en) * | 2016-12-30 | 2017-10-03 | 上海艾录包装股份有限公司 | A kind of high exhaust and the new structure of protection against the tide |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116373024A (en) * | 2023-06-05 | 2023-07-04 | 南京沪汇包装科技有限公司 | Intelligent positioning analysis method, system and medium for hole site of industrial packaging bag |
| CN116373024B (en) * | 2023-06-05 | 2023-08-15 | 南京沪汇包装科技有限公司 | Intelligent positioning analysis method, system and medium for hole site of industrial packaging bag |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206537665U (en) | A kind of high exhaust and the new structure of protection against the tide | |
| US9714128B2 (en) | Cushioning package | |
| HU220364B (en) | Bag made of polymer and especially polyolefine fabric and process for producing it | |
| US20140314344A1 (en) | Packaging container for bulk materials | |
| CN206537663U (en) | It is a kind of to be vented and moistureproof plastics package valve bag | |
| CN108263737A (en) | A kind of high exhaust and moisture-proof new structure | |
| CN201553371U (en) | Compound plastic woven bag | |
| CN108313490A (en) | A kind of exhaust and moisture-proof plastics package valve bag | |
| US20200172311A1 (en) | Triple-folded hot air sealed thermoplastic bags | |
| CN206537667U (en) | A kind of moistureproof and ventilative FFS packaging bags | |
| CN108313491A (en) | A kind of exhaust and moisture-proof FFS packaging bags | |
| CN206537666U (en) | It is a kind of to be vented and moistureproof FFS packaging bags | |
| ITPR20090058A1 (en) | ENVELOPE TO KEEP AT LEAST ONE SUBSTANCE, BAG FOR PACKAGING INCLUDING THIS ENVELOPE AND METHODS OF MANUFACTURING THESE | |
| CN208585556U (en) | A kind of exhaust and dust-proof plastics package valve bag | |
| CN108313492A (en) | A kind of moisture-proof and ventilative FFS packaging bags | |
| DK2687456T3 (en) | Packaging container with ventilation function | |
| CN208585557U (en) | A kind of FFS packaging bag of single channel knife edge type exhaust | |
| US11312538B2 (en) | Treatment of closure ends on large format bags | |
| CN108263738A (en) | A kind of moisture-proof and exhaust new structure | |
| CN215437689U (en) | Valve port bag convenient to filling | |
| CN110745366A (en) | Building materials powder wrapping bag | |
| CN206231802U (en) | Compound braided bag | |
| CN207843768U (en) | A kind of packaging bag | |
| CN212173072U (en) | Building material powder packaging bag adopting labyrinth type exhaust mode or direct discharge mode | |
| CN208746669U (en) | A kind of deoxidizer packing bag |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180710 |
|
| RJ01 | Rejection of invention patent application after publication |