CN109160069B - Packaging bag and packaging bag production technology - Google Patents
Packaging bag and packaging bag production technology Download PDFInfo
- Publication number
- CN109160069B CN109160069B CN201811022854.4A CN201811022854A CN109160069B CN 109160069 B CN109160069 B CN 109160069B CN 201811022854 A CN201811022854 A CN 201811022854A CN 109160069 B CN109160069 B CN 109160069B
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- plastic layer
- paper
- packaging bag
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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
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
- B65D31/14—Valve bags, i.e. with valves for filling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/60—Uniting opposed surfaces or edges; Taping
- B31B70/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
Abstract
The present invention provides a kind of packaging bags, belong to packaging field, including paper layer；Plastic layer；The bottom of paper layer and the bottom of plastic layer are Nian Jie, and the top of paper layer and the top of plastic layer are Nian Jie, and the middle part of paper layer and the middle part of plastic layer are separately positioned；Valve mouth structure.The packaging bag paper layer is only connected in top and bottom with plastic layer, and middle part is separately positioned, to carry out the independent recycling of plastic layer and paper layer, is more energy-saving and environmentally friendly；Can printed patterns in smooth paper layer in advance, printed patterns are smooth bright and clean, and packaging bag appearance is more exquisite.The present invention also provides a kind of packagings to beat production technology, comprising steps of in paper layer surface printing pattern；Paper layer is closed in plastic layer outside；At the top of paper layer and Nian Jie at the top of plastic layer, paper layer bottom is Nian Jie with plastic layer bottom；Bottom and upper bottom are formed, and valve mouth structure is set.The production technology guarantees the smooth bright and clean of packaging bag printed patterns, facilitates the independent recycling of plastic layer and paper layer.
Description
Technical field
The invention belongs to packing technique fields, are to be related to a kind of packaging bag and for producing the packaging bag more specifically
Packaging bag production technology.
Background technique
Valve bag is current international popular packaging bag, is fed from top or bottom valve port, filling using special filling apparatus
Cube is dressed up after material, heap packet is neat, and it is beautiful, there are the spies such as improve packaging efficiency, convenient transportation, firmness is strong, breakage rate is low
Point.Existing valve bag is to guarantee moisture resistant seal, mostly uses paper-plastic stick hermetic bag, internal plastic layer and external paper
Matter layer is combined to together entirely through high temperature lamination, carries out printing and bag body molding after compound again.Due to plastic layer and paper layer
Between to be bonded compound form, it is compound after paper layer appearance surface evenness it is poor, cause printing effect that can have a greatly reduced quality；And
It will cause the strength reduction of the plastic layer of internal layer during high temperature lamination is compound；Also, due to paper layer and plastic layer it
Between it is compound entirely through high temperature lamination, paper layer and plastic layer are difficult to separate and recover, and are unfavorable for environmental protection and energy saving.
Summary of the invention
The purpose of the present invention is to provide a kind of packaging bags, whole to solve paper layer existing in the prior art and plastic layer
Body bonding leads to later period printing effect difference and is difficult to the technical issues of separating and recovering to paper layer and plastic layer.
To achieve the above object, the technical solution adopted by the present invention is that: provide a kind of packaging bag, comprising: paper layer；
Plastic layer is set on the inside of the paper layer；
The bottom of the paper layer is Nian Jie with the bottom of the plastic layer, the top of the paper layer and the plastic layer
Top bonding, the middle part of the paper layer and the middle part of the plastic layer are separately positioned；
The bottom fold of the bottom of the paper layer and the plastic layer seals to form bottom, the top of the paper layer and
The top fold of the plastic layer seals to form bottom on outer layer；
Valve mouth structure, set on the upper bottom and the inner cavity that is enclosed with the plastic layer is connected to.
Further, the paper layer has at least one outer side seam.
Further, the plastic layer is flat filament woven cloth component.
Further, the paper layer is brown paper component.
Further, the valve mouth structure is interior valve mouth structure, outer valve mouth structure, in hot melt adhesive outside valve mouth structure or lamination
One of valve mouth structure.
Further, it is bonded with lower reinforcing layer inside the bottom, is bonded with reinforcing layer inside the upper bottom；Under described
It is bonded with lower sealant outside bottom, is bonded with sealant outside the upper bottom.
The beneficial effect of packaging bag provided by the invention is: compared with prior art, packaging bag of the present invention, paper layer and
Plastic layer is only connected in top and bottom, and middle part is separately positioned, both is facilitated when recycling and to be separated, to carry out plastic layer
With the independent recycling of paper layer, it is more energy-saving and environmentally friendly；Simultaneously as paper layer and plastic layer discretely-formed, can exist in advance
Printed patterns in smooth paper layer, followed by the connection of paper layer and plastic layer, printed patterns are smooth bright and clean, so that packet
It is more exquisite to pack appearance.
The present invention also provides a kind of packaging bag production technologies, include the following steps:
In paper layer surface printing given pattern；
The paper layer printed is enclosed in the plastic layer periphery of tubular；
The top of the paper layer printed is Nian Jie with the top of the plastic layer, the paper layer that will be printed
Bottom it is Nian Jie with the bottom of the plastic layer；
The side edge of the paper layer after connecting with the plastic layer is connected, side seam is formed；
The bottom fold of the bottom of the paper layer and the plastic layer is sealed to form bottom, by the top of the paper layer
The top fold of portion and the plastic layer seals to form bottom on outer layer, and valve mouth structure is arranged in the upper bottom.
It is further, described after paper layer surface printing given pattern further include:
The plastic layer of tubular is flattened by two-stage flattening device, removes the fold of the plastic layer, and make the plastic cement
The width of layer reaches normal width.
It is further, described before the paper layer that the enclosing of the plastic layer periphery of tubular prints further include:
Adhesive layer is set in the top and bottom of the paper layer respectively in such a way that matrix form positions frictioning；
The plastic layer periphery in tubular encloses after the paper layer printed further include:
The plastic layer of tubular is blown using air-flow wind net and is posted in the paper layer.
It is further, described before paper layer surface printing given pattern further include:
The trimming of the plastic layer of tubular is heat-treated.
The beneficial effect of packaging bag production technology provided by the invention is: compared with prior art, packaging bag of the present invention
Production technology, printed patterns in individual paper layer in advance, then make the top and bottom of paper layer respectively with the plastic cement of tubular
The top and bottom connection of layer, and separation is kept in the middle part of the two, guarantees the smooth bright and clean of packaging bag printed patterns, at the same it is convenient after
The independent recycling of continuous plastic layer and paper layer.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the structural schematic diagram of packaging bag provided in an embodiment of the present invention；
Fig. 2 is the explosive view of Fig. 1；
Fig. 3 is the structural schematic diagram of valve mouth structure in Fig. 2；
Fig. 4 is the B-B cross-sectional view of Fig. 3；
Fig. 5 is the A-A cross-sectional view of Fig. 1.
Wherein, each appended drawing reference in figure:
1- paper layer；2- plastic layer；The bottom 3-；The first left folding of 301- angle；The first right folding of 302- angle；It is sealed on 303- first；
304- first is lower to be sealed；The upper bottom 4-；The second left folding of 401- angle；The second right folding of 402- angle；It is sealed on 403- second；404- second is lower to be sealed；
5- valve mouth structure；501- valve port cylinder；502- seals film；The outer side seam of 6-；Reinforcing layer under 7-；The upper reinforcing layer of 8-；Sealant under 9-；
The upper sealant of 10-；11- sealing valve port sticker
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
Also referring to Fig. 1, Fig. 2 and Fig. 5, now packaging bag provided by the invention is illustrated.The packaging bag, including
Paper layer 1；Plastic layer 2 is set to 1 inside of paper layer；The bottom of paper layer 1 is Nian Jie with the bottom of plastic layer 2, the top of paper layer 1
Portion is Nian Jie with the top of plastic layer 2, and the middle part of paper layer 1 and the middle part of plastic layer 2 are separately positioned；The bottom of paper layer 1 and modeling
The bottom fold of glue-line 2 seals to form bottom 3, and the top of paper layer 1 and the top fold of plastic layer 2 seal to form bottom on outer layer
4；Valve mouth structure 5, the inner cavity being enclosed at upper bottom 4 and with plastic layer 2 are connected to.
Packaging bag provided by the invention, compared with prior art, paper layer 1 are only connected in top and bottom with plastic layer 2,
Middle part is separately positioned, both facilitates when recycling and to be separated, to carry out the independent recycling of plastic layer 2 and paper layer 1,
It is more energy-saving and environmentally friendly；Simultaneously as 2 discretely-formed of paper layer 1 and plastic layer, can print figure in smooth paper layer 1 in advance
Case can also finely be printed, and followed by the connection of paper layer 1 and plastic layer 2, printed patterns are smooth bright and clean, so that packet
It is more exquisite to pack appearance.
In addition, paper layer 1 and plastic layer 2 are separately positioned at middle part, having abandoned keeps the high temperature lamination of the completely viscous sum of the two multiple
It closes, there is no any damage to the intensity of plastic layer 2, the pulling force of packaging bag and load bearing effect can be made more preferable.
As a kind of specific embodiment of packaging bag provided by the invention, the bottom of paper layer 1 and the bottom of plastic layer 2
It is bonded by the adhesive tape of multiple parallelly distribute ons, the adhesive tape that the top of paper layer 1 and the top of plastic layer 2 pass through multiple parallelly distribute ons
Bonding, reduces the bond area of paper layer 1 and plastic layer 2, more convenient separation as far as possible under the premise of guaranteeing bonding strength
Plastic layer 2 and paper layer 1.
Also referring to Fig. 1, Fig. 2 and Fig. 5, as a kind of specific embodiment of packaging bag provided by the invention, papery
Layer 1 has at least one outer side seam 6.Side seam 6 is formed by two bonding parts, and bonding part can improve papery towards 1 outside of paper layer
The intensity and stability in use of layer 1.
Referring to Fig. 5, a kind of specific embodiment as packaging bag provided by the invention, plastic layer 2 has at least one
Side seam in item, in the circumferential direction of paper layer 1, outer side seam 6 is arranged with interior side seam interval；Alternatively, plastic layer 2 is seamless tubular knot
Structure.
As a kind of specific embodiment of packaging bag provided by the invention, plastic layer 2 is flat filament woven cloth component.It is flexible
Property and good waterproof performance, be suitble to powder grain material high quality save.
As a kind of specific embodiment of packaging bag provided by the invention, the side of plastic layer 2 is additionally provided with expansion fold,
The organizine and tram of plastic layer 2 have certain gap, so when the effect of the laterally or longitudinally under tension of plastic layer 2, modeling
Glue-line 2 will extend much in this direction, and expansion fold can provide biggish during packaging bag gradually expands
Expandable space prevents 2 spalling of plastic layer or deformation.
As a kind of specific embodiment of packaging bag provided by the invention, paper layer 1 is brown paper component.Its intensity
Height, and appearance is more beautiful after being made into packaging bag.
As a kind of specific embodiment of packaging bag provided by the invention, paper layer 1 is high saturating brown paper, is being guaranteed thoroughly
Humidity resistance is more preferable under the premise of gas.
As a kind of specific embodiment of packaging bag provided by the invention, paper layer 1 is equipped with pressure stabilizing air hole.Pressure stabilizing
Air hole is the micropore through paper layer 1, and due to filling using air pressure when filling powder grain material, gas pours rear bag body
Rapid expanding, flat filament woven cloth component cooperate pressure stabilizing air hole can with the intracorporal air pressure of speed release bag appropriate, and by
It is small-sized in its, it not will cause the leakage of powder grain material, be further ensured that filling safety.
Referring to FIG. 1 to FIG. 4, as a kind of specific embodiment of packaging bag provided by the invention, valve mouth structure 5 is interior
Valve mouth structure, outer valve mouth structure, one of valve mouth structure or the outer valve mouth structure of lamination in hot melt adhesive.It is applicable in valve mouth structure 5
Range is wide, and versatility is good.
Refering to fig. 1 and Fig. 2, as a kind of specific embodiment of packaging bag provided by the invention, in order to improve upper 4 He of bottom
Bottom 3 structural strength and leakproofness, bottom 3 inside be bonded with lower reinforcing layer 7, be bonded with reinforcing layer 8 inside upper bottom 4；Under
It is bonded with lower sealant 9 outside bottom 3, is bonded with sealant 10 outside upper bottom 4.
Optionally, as a kind of specific embodiment of packaging bag provided by the invention, lower reinforcing layer 7 and upper reinforcing layer 8
For brown paper material, tearing toughness, rupture function and resistance to vibration are very high, are suitable as ruggedized construction.Lower sealant 9 and upper
Sealant 10 is sealed paper material, and gumminess is good, is easy to paste, can effectively substances such as exclusion of water, oil, can not only prevent
Only powder grain material is revealed, and the protective effect of anti-moisture and soil-repellent dye can be also played to the intracorporal article of bag.
Referring to FIG. 1 to FIG. 4, as a kind of specific embodiment of packaging bag provided by the invention, when valve mouth structure 5 is
In hot melt adhesive when valve port, valve mouth structure 5 includes and 3 valve port cylinders 501 that are Nian Jie and protruding into the inner cavity that plastic layer 2 is enclosed of bottom
And the sealing film 502 of periphery is exported set on valve port cylinder 501, it is equipped with and uses close to the side of 501 import of valve port cylinder on upper sealant 10
In with the 3 sealing valve port stickers 11 Nian Jie and that seal 501 import of valve port cylinder in outside of bottom, sealing valve port sticker 11 is hot melt adhesive
Patch.After filling material, to hot melt adhesive heat activation, the sealing to valve port is realized.
The exit that film 502 is set to valve port cylinder 501 is sealed, the connection sealed around with the outlet of outer valve 17.Sealing film 502 is
Plastic film material can make to play the role of steady pressure filling, and after filling extract filling apparatus when
It waits, plays certain plugging action to the exit of valve port cylinder 501 under the drive of filling apparatus, prevent powder grain material with filling
Installing is standby to run out of valve mouth structure, causes to waste, also impact to production environment.Valve port cylinder 501 is hard paper material, by hard
Paper roll flattens after bonding edge again at tubular, is formed the outer valve arrangement of a flat sheet, is still cylinder after being strutted
Shape, flat laminated structure easily facilitate the installation of valve port cylinder 501.
Relative barometric pressure balance inside and outside bag body, seals film 502 when optionally, in order to maintain the filling filling apparatus of extraction after the completion
Side is equipped with pressure stabilizing notch, can effectively prevent taking powder grain material out of when extracting filling apparatus.
It, will when valve mouth structure 5 is interior valve mouth structure as a kind of specific embodiment of packaging bag provided by the invention
Paper layer 1 (white ox-hide or ox mulberry paper) is made into tubular valve port, and valve port stretches in bag.Band sealing film can be set into and without close
Valve port in two kinds of sealer；It is made into tubular valve port with paper layer 1, seals Membrane cover on the inside of tubular valve port, sealing film compares valve port
It is about 6cm.
It, will when valve mouth structure 5 is outer valve mouth structure as a kind of specific embodiment of packaging bag provided by the invention
Paper layer 1 (white ox-hide or ox mulberry paper) is made into tubular valve port；Valve port stretches in bag, and valve port one end is stretched out outside bag, below valve port
Patch sealing paper slip.
As a kind of specific embodiment of packaging bag provided by the invention, when valve mouth structure 5 is valve mouth structure outside lamination
When, in valve port manufacturing process, the lamination of special process is first carried out to brown paper used in production valve port, then press above-mentioned outer valve
Outer valve port is fabricated to described in mouth structure；Valve port leaching membrane layer is inwardly.After filling material, activated by ultrasonic wave or other heating methods
Leaching membrane layer makes its quick-binding, realizes pouch seal.
Fig. 1 and Fig. 2 is please referred to, as a kind of specific embodiment of packaging bag provided by the invention, bottom 3 includes along folding
The the first left folding angle 301 and the first right folding angle 302 and sealed under 303 and first along first that back cover line is folded into that linea angulata is folded into
304 are sealed, the staggered place bonding of envelope 303 and the first lower envelope 304 on first, and in the first left folding angle 301 and the first right folding angle 302
Outside, envelope 303 and the interlaced bottom 3 that formed of the first lower envelope 304 on the first left folding angle 301, the first right folding angle 302, first
First main body supporting structure；The inside of first main body supporting structure is equipped with the lower reinforcing layer that can cover the first main body supporting structure
7, outside is equipped with the lower sealant 9 that can cover the first main body supporting structure.
Fig. 1 and Fig. 2 is please referred to, as a kind of specific embodiment of packaging bag provided by the invention, upper bottom 4 includes along folding
The the second left folding angle 401 and the second right folding angle 402 and sealed under 403 and second along second that back cover line is folded into that linea angulata is folded into
404 are sealed, the staggered place bonding of envelope 403 and the second lower envelope 404 on second, and in the second left folding angle 401 and the second right folding angle 402
Outside, envelope 403 and the second lower envelope 404 is interlaced forms the of bottom on the second left folding angle 401, the second right folding angle 402, second
Two main body supporting structures；The inside of second main body supporting structure is equipped with the upper reinforcing layer 8 that can cover the second main body supporting structure,
Outside is equipped with the upper sealant 10 that can cover the second main body supporting structure；Upper reinforcing layer 8 is on interlaced second and seals
Between the crack that envelope 404 and the second left folding angle 401, the second right folding angle 402 are constituted under 403 and second.
Fig. 1 and Fig. 2 is please referred to, as a kind of specific embodiment of packaging bag provided by the invention, the both ends of side seam 6
It is located at the first left folding angle 301 and the second left folding angle 401.
The present invention also provides a kind of packaging bag production technology, the packaging bag production technology includes the following steps:
In 1 surface printing given pattern of paper layer；
The paper layer 1 printed is enclosed in 2 periphery of plastic layer of tubular；
The top of the paper layer 1 printed is Nian Jie with the top of plastic layer 2, by the bottom of the paper layer 1 printed with
The bottom of plastic layer 2 is bonded；
The side edge of paper layer 1 after connecting with plastic layer 2 is connected, side seam 6 is formed；
The bottom fold of the bottom of paper layer 1 and plastic layer 2 is sealed to form bottom 3, by the top of paper layer 1 and plastic cement
The top fold of layer 2 seals to form bottom 4 on outer layer, and valve mouth structure 5 is arranged at upper bottom 4.
Packaging bag production technology provided by the invention, the printed patterns in individual paper layer, then make paper layer in advance
Top and bottom are connect with the top and bottom of the plastic layer of tubular respectively, and separation is kept in the middle part of the two, guarantee packaging bag print
Map brushing case it is smooth bright and clean, while facilitating the independent recycling of subsequent plastic layer and paper layer.
As a kind of specific embodiment of packaging bag production technology provided by the invention, refer in 1 surface printing of paper layer
After determining pattern further include:
The plastic layer 2 of tubular is flattened by two-stage flattening device, removes the fold of plastic layer 2, and make the width of plastic layer 2
Degree reaches normal width.The normal width is consistent with packaging bag normal width.
As a kind of specific embodiment of packaging bag production technology provided by the invention, in 2 periphery of plastic layer of tubular
Before the paper layer 1 that enclosing prints further include:
Adhesive layer is set in the top and bottom of paper layer 1 respectively in such a way that matrix form positions frictioning；
After 2 periphery of plastic layer of tubular encloses the paper layer 1 printed further include:
The plastic layer 2 of tubular is blown using air-flow wind net and is posted in paper layer 1, realizes the sizing to plastic layer 2.
It is specified in paper layer surface printing as a kind of specific embodiment of packaging bag production technology provided by the invention
After pattern further include:
Pressure stabilizing air hole is manufactured using multiple spot micropore technique in the paper layer 1 printed.
As a kind of specific embodiment of packaging bag production technology provided by the invention, refer in 1 surface printing of paper layer
Before determining pattern further include:
The trimming of the plastic layer 2 of tubular is heat-treated, 2 running of plastic layer is avoided, keeps 2 stress of plastic layer indeformable.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (9)
1. packaging bag production technology, which comprises the steps of:
In paper layer surface printing given pattern；
The paper layer printed is enclosed in the plastic layer periphery of tubular；
The top of the paper layer printed is Nian Jie with the top of the plastic layer, by the bottom of the paper layer printed
Portion is Nian Jie with the bottom of the plastic layer；
The side edge of the paper layer after connecting with the plastic layer is connected, side seam is formed；
The bottom fold of the bottom of the paper layer and the plastic layer is sealed to form bottom, by the top of the paper layer and
The top fold of the plastic layer seals to form bottom on outer layer, and valve mouth structure is arranged in the upper bottom；
The plastic layer periphery in tubular encloses before the paper layer printed further include:
Adhesive layer is set in the top and bottom of the paper layer respectively in such a way that matrix form positions frictioning；
The plastic layer periphery in tubular encloses after the paper layer printed further include:
The plastic layer of tubular is blown using air-flow wind net and is posted in the paper layer.
2. packaging bag production technology as described in claim 1, which is characterized in that described in paper layer surface printing given pattern
Later further include:
The plastic layer of tubular is flattened by two-stage flattening device, removes the fold of the plastic layer, and make the plastic layer
Width reaches normal width.
3. packaging bag production technology as described in claim 1, which is characterized in that described in paper layer surface printing given pattern
Before further include:
The trimming of the plastic layer of tubular is heat-treated.
4. based on production technology packaging bag produced described in any one of claim 1-3 characterized by comprising
Paper layer；
Plastic layer is set on the inside of the paper layer；
The bottom of the paper layer is Nian Jie with the bottom of the plastic layer, the top at the top of the paper layer and the plastic layer
Bonding, the middle part of the paper layer and the middle part of the plastic layer are separately positioned；
The bottom fold of the bottom of the paper layer and the plastic layer seals to form bottom, the top of the paper layer and described
The top fold of plastic layer seals to form bottom on outer layer；
Valve mouth structure, set on the upper bottom and the inner cavity that is enclosed with the plastic layer is connected to.
5. packaging bag as claimed in claim 4, it is characterised in that: the paper layer has at least one outer side seam.
6. packaging bag as claimed in claim 4, it is characterised in that: the plastic layer is flat filament woven cloth component.
7. packaging bag as claimed in claim 6, it is characterised in that: the paper layer is brown paper component.
8. packaging bag as claimed in claim 4, it is characterised in that: the valve mouth structure be interior valve mouth structure, outer valve mouth structure,
One of valve mouth structure or the outer valve mouth structure of lamination in hot melt adhesive.
9. packaging bag as claimed in claim 8, it is characterised in that: be bonded with lower reinforcing layer, the upper bottom inside the bottom
Inside is bonded with reinforcing layer；It is bonded with lower sealant outside the bottom, is bonded with sealant outside the upper bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811022854.4A CN109160069B (en) | 2018-09-03 | 2018-09-03 | Packaging bag and packaging bag production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811022854.4A CN109160069B (en) | 2018-09-03 | 2018-09-03 | Packaging bag and packaging bag production technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109160069A CN109160069A (en) | 2019-01-08 |
| CN109160069B true CN109160069B (en) | 2019-10-18 |
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ID=64894000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811022854.4A Active CN109160069B (en) | 2018-09-03 | 2018-09-03 | Packaging bag and packaging bag production technology |
Country Status (1)
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| CN (1) | CN109160069B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112265742A (en) * | 2020-06-19 | 2021-01-26 | 上海艾录包装股份有限公司 | Novel packaging bag |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0637217B2 (en) * | 1990-09-17 | 1994-05-18 | 昭和パックス株式会社 | Paper bag |
| CN2772979Y (en) * | 2005-02-28 | 2006-04-19 | 姬永岭 | Packing bag with recovery lining |
| CN201245281Y (en) * | 2008-07-25 | 2009-05-27 | 成泰昌包装制品(深圳)有限公司 | Paper packing bag with paper-plastic separation structure |
| CN204688645U (en) * | 2015-05-30 | 2015-10-07 | 佛山市佳密特防水材料有限公司 | Valve-port packaging bag in a kind of antiseep |
| CN205837496U (en) * | 2016-06-29 | 2016-12-28 | 石家庄康益包装有限公司 | A kind of sealing bag of band internal valve |
| CN205837494U (en) * | 2016-06-29 | 2016-12-28 | 石家庄康益包装有限公司 | A kind of paper-plastic stick seals bag |
| CN207618248U (en) * | 2017-11-22 | 2018-07-17 | 慈溪市山今高分子塑料有限公司 | A kind of valve bag |
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2018
- 2018-09-03 CN CN201811022854.4A patent/CN109160069B/en active Active
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| CN109160069A (en) | 2019-01-08 |
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