CN207496172U - Corrugated paper board - Google Patents
Corrugated paper board Download PDFInfo
- Publication number
- CN207496172U CN207496172U CN201721126131.XU CN201721126131U CN207496172U CN 207496172 U CN207496172 U CN 207496172U CN 201721126131 U CN201721126131 U CN 201721126131U CN 207496172 U CN207496172 U CN 207496172U
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- Prior art keywords
- proof
- moisture
- corrugation
- layer
- damp
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- 239000011087 paperboard Substances 0.000 title description 2
- 239000012528 membrane Substances 0.000 claims abstract description 69
- 239000011248 coating agent Substances 0.000 claims abstract description 40
- 238000000576 coating method Methods 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 52
- 239000000835 fiber Substances 0.000 claims description 42
- 239000000853 adhesive Substances 0.000 claims description 40
- 230000001070 adhesive effect Effects 0.000 claims description 40
- 230000001815 facial effect Effects 0.000 claims description 17
- 239000000123 paper Substances 0.000 abstract description 33
- 238000004519 manufacturing process Methods 0.000 abstract description 16
- 239000011111 cardboard Substances 0.000 abstract description 7
- 230000000704 physical effect Effects 0.000 abstract description 3
- 108010081750 Reticulin Proteins 0.000 abstract 4
- 239000012792 core layer Substances 0.000 abstract 3
- 239000010410 layer Substances 0.000 abstract 3
- 239000011247 coating layer Substances 0.000 abstract 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000003292 glue Substances 0.000 description 6
- 239000002390 adhesive tape Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
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- Laminated Bodies (AREA)
Abstract
The utility model discloses a corrugated board, which comprises an outer paper layer, wherein the outer paper layer comprises surface paper and a waterproof film arranged at the inner side of the surface paper; the first side of the corrugated moisture-proof core layer is connected with the waterproof membrane; the inner paper layer comprises base paper, a water-absorbing moisture-proof film arranged on the inner side of the base paper and a reticular fiber coating layer arranged on one side of the water-absorbing moisture-proof film, which is far away from the base paper, and the second side of the corrugated moisture-proof core layer is connected with the reticular fiber coating layer; or the reticular fiber coating is connected between the inner side of the base paper and the water-absorbing moisture-proof film, and the water-absorbing moisture-proof film is connected between the reticular fiber coating and the corrugated moisture-proof core layer. The physical property strength of the corrugated board can be enhanced, and the service life of the corrugated board in harsh environments such as humidity and the like is prolonged; and above-mentioned structure need not to increase cardboard gram weight and number of piles, can not increase manufacturing cost and processing degree of difficulty, is favorable to reducing corrugated container board's whole weight simultaneously, is convenient for transport of carrying when using.
Description
Technical field
The utility model is related to field of packaging material, more particularly to a kind of corrugated board.
Background technology
In carrier, when particularly sea land transportation is defeated, ensure product under sea water intrusion and wet environment to cope with
Safety during long-distance transport, generally use corrugated board pack product.And in order to improve the use of corrugated board
Intensity and service life, Normal practice is the grammes per square metre for increasing each paper layer or the number of plies for increasing corrugated layer when manufacturing corrugated board, with this
To resist the external influence for disliking slightly environment indirectly.However the conventional method has the disadvantage that：Increase the grammes per square metre of each paper layer merely
Or increase the number of plies of corrugated layer, manufacture cost can be undoubtedly greatly increased, increases production difficulty, while can also increase corrugated board
Overall weight, be not easy to lift to move transport.
Invention content
Based on this, it is necessary to provide a kind of corrugated boards for the utility model, can be in the premise for not increasing grammes per square metre and the number of plies
The lower overall construction intensity for improving cardboard with the service life being lifted under the evils such as humidity summary environment, and will not increase manufacture
Cost and production difficulty.
Its technical solution is as follows：
A kind of corrugated board, including：
External paper layer, the external paper layer include facial tissue and are set to the waterproof membrane of the inside of the facial tissue；
The moisture-proof sandwich layer of corrugation, the first side of the moisture-proof sandwich layer of corrugation are connect with the waterproof membrane；And
Inner paper layer, the inner paper layer include base stock, be set to the base stock inside water suction damp-proof membrane and be set to institute
State reticular fibre coating of the water suction damp-proof membrane away from the side of the base stock, the second side and the net of the moisture-proof sandwich layer of corrugation
Shape fiber coat connects；Or the reticular fibre coating is connected between the inside of the base stock and the water suction damp-proof membrane, institute
Water suction damp-proof membrane is stated to be connected between the reticular fibre coating and the moisture-proof sandwich layer of the corrugation.
During above-mentioned corrugated board manufacture, facial tissue and waterproof membrane are subjected to Compound Machining first and are formed as one external paper layer, such as
This can be realized from the outside of product completely cuts off with humid air waterproof, to ensure the structural strength of corrugated board；Later again the bottom of by
Paper carries out lamination with water suction damp-proof membrane, reticular fibre coating and is complex as a whole to form inner paper layer, and can strengthen corrugated board
Physical property intensity, while realize and absorb water on the inside of the product moisture-proof, it further promotes corrugated board and omits ring in evils such as humidities
Service life under border；And above structure need not increase cardboard grammes per square metre and the number of plies, will not increase manufacture cost and difficulty of processing,
The overall weight of corrugated board is advantageously reduced simultaneously, lift to move transport when being easy to use.
The technical solution of the application is further described below：
The first adhesive linkage is further included in one of the embodiments, and first adhesive linkage is set to the facial tissue and institute
It states between waterproof membrane.Can so realize that the connection of facial tissue and waterproof membrane is fixed, conducive to improve corrugated board structural strength and
Stability, and the connection mode is simple, can effectively reduce manufacture cost and difficulty of processing.
Include at least two layers first adhesive linkage and at least two layers waterproof membrane, institute in one of the embodiments,
It is alternately Nian Jie with the waterproof membrane to state the first adhesive linkage.Corrugated paper is can further improve thus by setting at least two layers of waterproof membrane
The waterproof and dampproof performance of plate.
The second adhesive linkage is further included in one of the embodiments, and it is moisture-proof that second adhesive linkage is set to the corrugation
Between sandwich layer and the reticular fibre coating or the water suction damp-proof membrane.It can so realize the moisture-proof sandwich layer of corrugation and reticular fibre
The connection of coating or the damp-proof membrane that absorbs water is fixed, conducive to the structural strength and stability of corrugated board, and connection mode letter is improved
It is single, it can effectively reduce manufacture cost and difficulty of processing.
Third adhesive linkage is further included in one of the embodiments, and the third adhesive linkage is set to the base stock and institute
It states between water suction damp-proof membrane or the reticular fibre coating.It can so realize base stock and water suction damp-proof membrane or reticular fibre coating
Connection fix, conducive to the structural strength and stability of corrugated board is improved, and the connection mode is simple, can effectively reduce manufacture
Cost and difficulty of processing.
Include at least two layers water suction damp-proof membrane, at least two layers water suction damp-proof membrane in one of the embodiments,
It sets gradually or is arranged alternately along the direction of the base stock to the moisture-proof sandwich layer of the corrugation with the reticular fibre coating.It is thus logical
It crosses and is stacked at least two layers water suction damp-proof membrane, can further promote the water absorbing capacity of corrugated board, realize more preferably moisture-proof
Effect.
Include at least two layers reticular fibre coating, at least two layers reticular fibre in one of the embodiments,
Coating sets gradually or is arranged alternately along the direction of the base stock to the moisture-proof sandwich layer of the corrugation with the water suction damp-proof membrane.Thus
By setting at least two layers netted fiber coat that can further promote the physical arrangement intensity of corrugated board, corrugated board is promoted
Service life.
Interval damp-proof layer is further included in one of the embodiments, and the moisture-proof sandwich layer of corrugation includes at least the first corrugation
Moisture-proof sandwich layer and the moisture-proof sandwich layer of the second corrugation, the moisture-proof sandwich layer of the first corrugation and the moisture-proof sandwich layer of the second corrugation are set to institute
It states between waterproof membrane and the reticular fibre coating or the water suction damp-proof membrane, the interval damp-proof layer is set to described first watt
Between stupefied damp-proof layer and the second corrugation damp-proof layer.In this way, it can not only be realized by interval damp-proof layer moisture-proof to the first corrugation
It the support of sandwich layer and the moisture-proof sandwich layer of the second corrugation and connect, while can also further promote the water suction moisture resistance of multi-wall corrugated board
Can, and then ensure overall construction intensity, promote service life.
Include at least two layers interval damp-proof layer, at least two layers interval damp-proof layer in one of the embodiments,
Arranged stacked is between the moisture-proof sandwich layer of first corrugation and the moisture-proof sandwich layer of the second corrugation.So not only can further it carry
The stability of strutting system and bonding strength to the moisture-proof sandwich layer of the first corrugation and the moisture-proof sandwich layer of the second corrugation are risen, while improves corrugated board
Water suction humidity resistance.
The 4th adhesive linkage and the 5th adhesive linkage are further included in one of the embodiments, and the 4th adhesive linkage is set to
Between the moisture-proof sandwich layer of first corrugation and the interval damp-proof layer, it is moisture-proof that the 5th adhesive linkage is set to second corrugation
Between sandwich layer and the interval damp-proof layer.The so achievable moisture-proof sandwich layer of first corrugation and the moisture-proof sandwich layer of the second corrugation are prevented with interval
The connection of damp layer is fixed so that the overall structure performance of corrugated board is good, and the connection mode is simple, advantageously reduces and is manufactured into
Sheet and difficulty of processing.
Description of the drawings
Fig. 1 is the structure diagram of the corrugated board described in the utility model embodiment；
Fig. 2 is the structure diagram of the another embodiment of the corrugated board described in the utility model embodiment.
Reference sign：
100th, external paper layer, 110, facial tissue, 120, waterproof membrane, 200, the moisture-proof sandwich layer of corrugation, 200a, the moisture-proof core of the first corrugation
Layer, 200b, the moisture-proof sandwich layer of the second corrugation, 300, inner paper layer, 310, base stock, 320, water suction damp-proof membrane, 330, reticular fibre coating,
400th, interval damp-proof layer.
Specific embodiment
It is below in conjunction with attached drawing and specifically real for the purpose of this utility model, technical solution and advantage is more clearly understood
Mode is applied, the utility model is described in further detail.It should be understood that the specific embodiments described herein
Only to explain the utility model, the scope of protection of the utility model is not limited.
It should be noted that when element is referred to as " being fixedly arranged on ", " being set to " or " install in " another element, it can be with
Directly on another element or there may also be elements placed in the middle.When an element is considered as " connection " another yuan
Part, it can be directly to another element or may be simultaneously present centering elements；One element and another element
The concrete mode being fixedly connected can be achieved by the prior art, and details are not described herein, it is preferred to use the fixation side of threaded connection
Formula.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The normally understood meaning of technical staff is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " including one or more
The arbitrary and all combination of relevant Listed Items.
" first " described in the utility model, " second " do not represent specific quantity and sequence, are only used for title
It distinguishes.
As depicted in figs. 1 and 2, the corrugated board for a kind of embodiment of the utility model displaying, including：External paper layer 100,
The external paper layer 100 includes facial tissue 110 and is set to the waterproof membrane 120 of the inside of the facial tissue 110；The moisture-proof sandwich layer of corrugation
200, the first side of the moisture-proof sandwich layer 200 of corrugation is connect with the waterproof membrane 120；And inner paper layer 300, the inner paper layer 300
Including base stock 310, the inside for being set to the base stock 310 water suction damp-proof membrane 320 and be set to it is described water suction damp-proof membrane 320
Reticular fibre coating 330 away from the side of the base stock 310, the second side of the moisture-proof sandwich layer 200 of corrugation with it is described netted
Fiber coat 330 connects；Or the reticular fibre coating 330 is connected to the inside of the base stock 310 and the water suction damp-proof membrane
Between 320, the water suction damp-proof membrane 320 is connected between the reticular fibre coating 330 and the moisture-proof sandwich layer 200 of the corrugation.
During above-mentioned corrugated board manufacture, facial tissue 110 and waterproof membrane 120 are subjected to Compound Machining first and are formed as one outer paper
Layer 100 can so be realized from the outside of product and be completely cut off with humid air waterproof, to ensure the structural strength of corrugated board；It
Base stock 310 is carried out lamination with water suction damp-proof membrane 320, reticular fibre coating 330 again afterwards to be complex as a whole to form inner paper layer 300,
It can strengthen the physical property intensity of corrugated board again, while realize moisture-proof, the further promotion watt that on the inside of product absorb water
Corrugated paper board omits the service life under environment in evils such as humidities；And above structure need not increase cardboard grammes per square metre and the number of plies, Bu Huizeng
It adds and causes this and difficulty of processing, while advantageously reduce the overall weight of corrugated board, lift to move transport when being easy to use.
It should be noted that in above-described embodiment, the side that facial tissue 110 is contacted with external environment is outside, then outer with this
The opposite side in side is the inside of the facial tissue 110；It is on the outside of the side that base stock 310 is contacted with the product wrapped up, then outer with this
The opposite side in side is the inside of the base stock 310.Wherein, the type of facial tissue 110 and base stock 310 can be people in the art
Any routine paper that member can use, such as brown paper etc., all in the protection domain of the application.In addition, waterproof membrane
120 can be the one kind therein such as PE films, PVC film；It is cardboard in undaform that the moisture-proof sandwich layer 200 of corrugation is optional, and the cardboard
With preferable water suction humidity resistance and structural strength.Further, according to actual product demand, prevent along base stock 310 to corrugation
The direction of damp sandwich layer 200, water suction damp-proof membrane 320 and the setting order and quantity of reticular fibre coating 330 can flexibly change, with
Properties of product are promoted, enrich product category.
On the basis of above-described embodiment, the first adhesive linkage (not shown), the first adhesive linkage setting are further included
Between the facial tissue 110 and the waterproof membrane 120.It can so realize that facial tissue 110 and the connection of waterproof membrane 120 are fixed, profit
In the structural strength and stability that improve corrugated board, and the connection mode is simple, can effectively reduce manufacture cost and difficult processing
Degree.Wherein, the first adhesive linkage can be glue, double faced adhesive tape etc., and the present embodiment is preferably glue.
Further, it is viscous including at least two layers first adhesive linkage and at least two layers waterproof membrane 120, described first
It is alternately Nian Jie with the waterproof membrane 120 to connect layer.Corrugated board is can further improve thus by setting at least two layers of waterproof membrane 120
Waterproof and dampproof performance.
On the basis of any of the above-described embodiment, the second adhesive linkage (not shown), second adhesive linkage are further included
It is set between the moisture-proof sandwich layer 200 of the corrugation and the reticular fibre coating 330 or the water suction damp-proof membrane 320.Such energy
Enough realize that the moisture-proof sandwich layer 200 of corrugation and the connection of reticular fibre coating 330 or the damp-proof membrane 320 that absorbs water are fixed, conducive to corrugation is improved
The structural strength and stability of cardboard, and the connection mode is simple, can effectively reduce manufacture cost and difficulty of processing.
On the basis of any of the above-described embodiment, third adhesive linkage (not shown), the third adhesive linkage are further included
It is set between the base stock 310 and the water suction damp-proof membrane 320 or the reticular fibre coating 330.It can so realize bottom
Paper 310 and water suction damp-proof membrane 320 or the connection of reticular fibre coating 330 are fixed, conducive to the structural strength for improving corrugated board and
Stability, and the connection mode is simple, can effectively reduce manufacture cost and difficulty of processing.Specifically, the second adhesive linkage and third
Adhesive linkage can be glue, double faced adhesive tape etc., and the present embodiment is preferably glue.
Fig. 1 is please referred to, further, including at least two layers water suction damp-proof membrane 320, at least two layers water suction is moisture-proof
The direction of film 320 and the reticular fibre coating 330 along the base stock 310 to the moisture-proof sandwich layer 200 of the corrugation set gradually or
It is arranged alternately.Thus by being stacked at least two layers water suction damp-proof membrane 320, the water absorbing capacity of corrugated board can be further promoted
Power realizes more preferably dampproof effect.For example, at least two layers water suction damp-proof membrane 320 is connected to base stock 310 and reticular fibre coating
Between 330 or according to 310, one layers of base stock water suction damp-proof membranes 320, reticular fibre coating 330, one layers of water suction damp-proof membrane 320
Sequence carries out arranged stacked, is conducive to be promoted the structural behaviour of corrugated board.
Further, including at least two layers reticular fibre coating 330, at least two layers reticular fibre coating
330 set gradually or replace with the direction of water suction damp-proof membrane 320 along the base stock 310 to the moisture-proof sandwich layer 200 of the corrugation
Setting.Thus by setting at least two layers netted fiber coat 330 that can further promote the physical arrangement intensity of corrugated board, carry
Rise the service life of corrugated board.
As shown in Fig. 2, on the basis of any of the above-described embodiment, interval damp-proof layer 400, the moisture-proof core of corrugation are further included
Layer 200 includes at least the moisture-proof sandwich layer 200a of the first corrugation and moisture-proof sandwich layer 200b of the second corrugation, the moisture-proof sandwich layer of the first corrugation
The 200a and moisture-proof sandwich layer 200b of second corrugation is set to the waterproof membrane 120 and the reticular fibre coating 330 or described
It absorbs water between damp-proof membrane 320, the interval damp-proof layer 400 is set to the first corrugation damp-proof layer and second corrugation is moisture-proof
Between layer.In this way, moisture-proof sandwich layer 200a and the moisture-proof core of the second corrugation to the first corrugation can be not only realized by interval damp-proof layer 400
The support and connection of layer 200b, while the water suction humidity resistance of multi-wall corrugated board can be also further promoted, and then ensure entirety
Structural strength promotes service life.Specifically, interval damp-proof layer 400 can be moistureproof paper, optional type is art technology
Brown paper, extrusion coating paper that personnel are easy to get etc..
Further, including at least two layers interval damp-proof layer 400, at least two layers interval damp-proof layer 400 is laminated
It is arranged between the moisture-proof sandwich layer 200a of first corrugation and the moisture-proof sandwich layer 200b of second corrugation.It so not only can be into one
Step promotes to the first corrugation the stability of strutting system and bonding strength of moisture-proof sandwich layer 200a and the moisture-proof sandwich layer 200b of the second corrugation, simultaneously
Improve the water suction humidity resistance of corrugated board.
In addition, further including the 4th adhesive linkage and the 5th adhesive linkage, the 4th adhesive linkage, which is set to first corrugation, to be prevented
Between damp sandwich layer 200a and the interval damp-proof layer 400, the 5th adhesive linkage is set to the moisture-proof sandwich layer of the second corrugation
Between 200b and the interval damp-proof layer 400.The so achievable moisture-proof sandwich layer 200a of first corrugation and the moisture-proof sandwich layer of the second corrugation
The connection of 200b and interval damp-proof layer 400 are fixed so that and the overall structure performance of corrugated board is good, and the connection mode is simple,
Advantageously reduce manufacture cost and difficulty of processing.Specifically, the 4th adhesive linkage and the 5th adhesive linkage can be glue, double faced adhesive tape
Deng the present embodiment is preferably glue.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Embodiment described above only expresses the several embodiments of the utility model, and description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent range.It should be pointed out that the common skill for this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of corrugated board, which is characterized in that including：
External paper layer, the external paper layer include facial tissue and are set to the waterproof membrane of the inside of the facial tissue；
The moisture-proof sandwich layer of corrugation, the first side of the moisture-proof sandwich layer of corrugation are connect with the waterproof membrane；And
Inner paper layer, the inner paper layer include base stock, be set to the base stock inside water suction damp-proof membrane and be set to the suction
Water damp-proof membrane is away from the reticular fibre coating of the side of the base stock, the second side and the netted fibre of the moisture-proof sandwich layer of corrugation
Tie up coating connection；Or the reticular fibre coating is connected between the inside of the base stock and the water suction damp-proof membrane, the suction
Water damp-proof membrane is connected between the reticular fibre coating and the moisture-proof sandwich layer of the corrugation.
2. corrugated board according to claim 1, which is characterized in that further include the first adhesive linkage, first adhesive linkage
It is set between the facial tissue and the waterproof membrane.
3. corrugated board according to claim 2, which is characterized in that including at least two layers first adhesive linkage and at least
Two layers of waterproof membrane, first adhesive linkage are alternately Nian Jie with the waterproof membrane.
4. corrugated board according to claim 1, which is characterized in that further include the second adhesive linkage, second adhesive linkage
It is set between the moisture-proof sandwich layer of the corrugation and the reticular fibre coating or the water suction damp-proof membrane.
5. corrugated board according to claim 1, which is characterized in that further include third adhesive linkage, the third adhesive linkage
It is set between the base stock and the water suction damp-proof membrane or the reticular fibre coating.
6. corrugated board according to claim 1, which is characterized in that including at least two layers water suction damp-proof membrane, at least
Two layers of water suction damp-proof membrane is set successively with the reticular fibre coating along the direction of the base stock to the moisture-proof sandwich layer of the corrugation
It puts or is arranged alternately.
7. corrugated board according to claim 1, which is characterized in that including at least two layers reticular fibre coating, until
Few two layers of reticular fibre coating and the water suction damp-proof membrane along the base stock to the direction of the moisture-proof sandwich layer of the corrugation successively
It sets or is arranged alternately.
8. corrugated board according to claim 1, which is characterized in that further include interval damp-proof layer, the moisture-proof core of corrugation
Layer includes at least the moisture-proof sandwich layer of the first corrugation and the moisture-proof sandwich layer of the second corrugation, the moisture-proof sandwich layer of first corrugation and second watt described
Stupefied moisture-proof sandwich layer is set between the waterproof membrane and the reticular fibre coating or the water suction damp-proof membrane, and the interval is moisture-proof
Layer is set between the first corrugation damp-proof layer and the second corrugation damp-proof layer.
9. corrugated board according to claim 8, which is characterized in that including at least two layers interval damp-proof layer, at least
Two layers of interval damp-proof layer arranged stacked is between the moisture-proof sandwich layer of first corrugation and the moisture-proof sandwich layer of the second corrugation.
10. corrugated board according to claim 9, which is characterized in that further include the 4th adhesive linkage and the 5th adhesive linkage, institute
It states the 4th adhesive linkage to be set between the moisture-proof sandwich layer of first corrugation and the interval damp-proof layer, the 5th adhesive linkage setting
Between the moisture-proof sandwich layer of second corrugation and the interval damp-proof layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721126131.XU CN207496172U (en) | 2017-09-04 | 2017-09-04 | Corrugated paper board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721126131.XU CN207496172U (en) | 2017-09-04 | 2017-09-04 | Corrugated paper board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207496172U true CN207496172U (en) | 2018-06-15 |
Family
ID=62497999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721126131.XU Active CN207496172U (en) | 2017-09-04 | 2017-09-04 | Corrugated paper board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207496172U (en) |
-
2017
- 2017-09-04 CN CN201721126131.XU patent/CN207496172U/en active Active
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