CN211493144U - Resistance to compression type corrugated container board - Google Patents
Resistance to compression type corrugated container board Download PDFInfo
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- CN211493144U CN211493144U CN201921864623.8U CN201921864623U CN211493144U CN 211493144 U CN211493144 U CN 211493144U CN 201921864623 U CN201921864623 U CN 201921864623U CN 211493144 U CN211493144 U CN 211493144U
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Abstract
The utility model relates to a compression-resistant corrugated board, which belongs to the field of packaging elements for transportation, is applied to a corrugated case, and is provided with a first paper core layer, a honeycomb paperboard layer, a second paper core layer and an outer paper board in sequence towards the outside of the corrugated case body on the basis of an inner paper board, the first paper core layer and the second paper core layer respectively comprise a first corrugated core paper and a second corrugated core paper which are in a dentate wave-shaped structure, and are symmetrically arranged about the honeycomb paperboard layer, a first reinforced core and a second reinforced core are respectively placed in the wave crest and the wave trough of the dentate wave-shaped structure of the first corrugated core paper and the second corrugated core paper, a first flexible filling body and a second flexible filling body are respectively filled in the space of the first paper core layer and the second paper core layer, and are matched to realize the compression-resistant function of the compression-resistant corrugated board, can effectively prevent the cardboard from sinking, guarantee that the structure is complete, improve this resistance to compression type corrugated container board's stability, practicality and life.
Description
Technical Field
The utility model relates to a packing element field is used in the transportation, especially relates to a resistance to compression type corrugated container board.
Background
Corrugated board packing boxes are quite common in our daily lives and are commonly used in the packing and transportation processes of commodities. The existing packing box is formed by printing, cutting and binding corrugated boards, and when some fragile articles, such as glass, porcelain, artware and the like are transported, the pressure resistance function of the corrugated boards of the corrugated boxes needs to be considered. At present, the corrugated board is usually made by filling some foamed plastics or other foamed light materials in the carton, although certain buffering effect is provided, the buffering effect is often not good, simultaneously, the internal structure of the corrugated board is unstable, the damage of each layer structure in the corrugated board is easily caused by external pressure, the structure of the carton is damaged, so the service life is not long, therefore, the compression-resistant corrugated board which has excellent compression resistance function is urgently needed to be provided, the structure of the corrugated board can be ensured to be complete, the service life is long, and the compression-resistant corrugated board is stable and practical.
SUMMERY OF THE UTILITY MODEL
In view of the above situation, the utility model discloses mainly solve among the prior art corrugated container board structure unstable, compressive capacity is not enough, the short problem of life provides a resistance to compression type corrugated container board, through the reinforcing first paper core layer the inner structure of second paper core layer, the cooperation has been realized resistance to compression type corrugated container board's resistance to compression function can prevent effectively that the cardboard from sinking, guarantees resistance to compression type corrugated container board structure is complete, has improved this resistance to compression type corrugated container board's stability, practicality and life.
To achieve the object, the present invention provides a pressure-resistant corrugated cardboard, which is applied to a corrugated case, the corrugated case includes a corrugated case interior for placing articles and a corrugated case exterior facing away from the corrugated case interior, the pressure-resistant corrugated cardboard is sequentially provided with an inner paper board, a first paper core layer, a honeycomb paper layer, a second paper core layer and an outer paper board from the corrugated case interior to the corrugated case exterior, the first paper core layer includes a first corrugated surface paper, a first corrugated bottom paper and a first corrugated core paper disposed between the first corrugated surface paper and the first corrugated bottom paper, the second paper core layer includes a second corrugated surface paper, a second corrugated bottom paper and a second corrugated core paper disposed between the second corrugated surface paper and the second corrugated bottom paper, the first corrugated core paper and the second corrugated core paper are in a tooth-shaped wave structure, and the first paper core layer further comprises a first reinforcing core and a first flexible filler, the second paper core layer further comprises a second reinforcing core and a second flexible filler, the first reinforcing core and the second reinforcing core are respectively placed in the wave crests and the wave troughs of the tooth-shaped wave structures of the first corrugated core paper and the second corrugated core paper, and the first flexible filler and the second flexible filler are respectively filled in the gaps of the first paper core layer and the second paper core layer. By arranging the first corrugated medium paper and the second corrugated medium paper in a toothed waveform structure on the first paper core layer and the second paper core layer respectively, and by placing the first reinforcing core and the second reinforcing core on the crest section and the trough section of the toothed waveform structure of the first corrugated medium paper and the second corrugated medium paper respectively, when a paperboard is impacted, the paperboard can be effectively prevented from sinking, the impact resistance of the paperboard is improved, the damage of insects and the like to the paperboard can be effectively avoided, and the service life is prolonged; the first flexible filling body and the second flexible filling body are arranged at the gap between the first paper core layer and the second paper core layer in a matched mode, so that the first paper core layer and the second paper core layer are full and compact and have elasticity, when the paperboard is impacted and can bear pressure, the first flexible filling body and the first flexible filling body buffer the whole compression-resistant corrugated paperboard, the influence of external vibration on the compression-resistant corrugated paperboard is reduced, the first paper core layer and the first paper core layer can be supported to recover deformation respectively, the internal structures of the first paper core layer and the second paper core layer are protected from being damaged, and the stability, the practicability and the service life of the compression-resistant corrugated paperboard are improved; the first corrugated medium paper and the second corrugated medium paper are symmetrically arranged about the honeycomb paperboard layer in a toothed waveform structure, wave crests of the first corrugated medium paper and wave crests of the second corrugated medium paper are opposite to each other, and when the pressure-resistant corrugated paperboard is subjected to external force, the first corrugated medium paper and the second corrugated medium paper are matched to share the stress, and meanwhile, the external force can be transmitted to the honeycomb paperboard layer.
Preferably, the first corrugated surface paper, the first corrugated base paper and the first corrugated medium paper are in an integrally formed structure, so that the first paper core layer is prevented from being separated, and the structure is more complete.
Preferably, the second corrugated surface paper, the second corrugated base paper and the second corrugated medium paper are in an integrally formed structure, so that the second paper core layer is prevented from being separated, and the structure is more complete.
Preferably, the first flexible filler is a thermoplastic polyurethane elastomer, and the thermoplastic polyurethane elastomer has elasticity and toughness and is degradable and pollution-free to the environment.
Preferably, the second flexible filling body is EPE pearl cotton, and the EPE pearl cotton has good plasticity, strong toughness, shock resistance and strong impact resistance, so that the compression resistance of the compression-resistant corrugated board is improved, and the EPE pearl cotton also has the characteristics of water resistance and moisture resistance, is environment-friendly, can be recycled and reproduced, and can reduce the production cost.
Preferably, the pressure-resistant corrugated board further comprises a first waterproof layer, and the first waterproof layer is arranged in the corrugated case body on the basis of the inner paper board.
Preferably, the pressure-resistant corrugated cardboard further comprises an upper reinforcing layer disposed between the inner cardboard and the first core layer.
Preferably, the pressure-resistant corrugated board further comprises a second waterproof layer, and the second waterproof layer is arranged outside the corrugated case body on the basis of the outer paper board.
As preferred, resistance to compression type corrugated container board still includes a dampproof course, it sets up to put the damp course the second paper sandwich layer with between the outer cardboard, the dampproof course is a polyethylene foam, polyethylene foam has the characteristics such as matter is light, thermal-insulated, inhale the sound, shock attenuation, and the while is hardly absorbed water and almost impervious vapour, uses for a long time under humid environment and can not wet, and dampproofing effect is splendid, cooperates the second waterproof layer has realized the outside dampproofing and waterproofing function of corrugated container box.
The utility model has the advantages that:
the utility model provides a pair of resistance to compression type corrugated container board, it is applied to a corrugated container box, resistance to compression type corrugated container board by corrugated container box's inside extremely corrugated container box's outside has set gradually an interior cardboard, a first paper core layer, a honeycomb board layer, a second paper core layer and an outer cardboard, through setting up dentate wave structure first corrugated core paper with second corrugated core paper, and first corrugated core paper with the dentate wave structure's of second corrugated core paper peak section and trough section are placed respectively first enhancement core with the core is strengthened to the second, and the cooperation is in simultaneously first paper core layer with the space department of second paper core layer is provided with respectively first flexible obturator with the flexible obturator of second makes first paper core layer with when second paper core layer is full and filled, The resistance to compression function has guaranteed resistance to compression type corrugated container board is complete in structure, is dentate wave structure simultaneously first flute core paper with second flute core paper about honeycomb paperboard layer symmetrical arrangement, first flute core paper with the crest of second flute core paper is all mutually opposite, works as when resistance to compression type corrugated container board receives external force, first flute core paper with the atress is shared in the cooperation of second flute core paper, also can transmit external force simultaneously on the honeycomb paperboard layer, the cooperation has been realized resistance to compression type corrugated container board's resistance to compression function can prevent effectively that the cardboard is sunken, guarantees that the structure is complete, has improved this resistance to compression type corrugated container board's stability, practicality and life.
Drawings
Fig. 1 is a schematic diagram of a compression-resistant corrugated board structure provided by the present invention;
in the figure: 1-a first waterproof layer, 2-an inner paper board, 3-an upper reinforcing layer, 4-a first paper core layer, 41-a first corrugated surface paper, 42-a first corrugated base paper, 43-a first corrugated base paper, 44-a first reinforcing core, 45-a first flexible filling body, 5-a honeycomb paper board layer, 6-a second paper core layer, 61-a second corrugated surface paper, 62-a second corrugated base paper, 63-a second corrugated base paper, 64-a second reinforcing core, 65-a second flexible filling body, 7-a moisture-proof layer, 8-an outer paper board, 9-a second waterproof layer.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.
Examples
Referring to fig. 1, the compression-resistant corrugated board provided by the present embodiment is applied to a corrugated case, the corrugated case includes a corrugated case interior for placing articles and a corrugated case exterior deviating from the corrugated case interior, and the compression-resistant corrugated board is provided with a first waterproof layer 1, an inner paper board 2, an upper reinforcing layer 3, a first paper core layer 4, a honeycomb paper board layer 5, a second paper core layer 6, a moisture-proof layer 7, an outer paper board 8 and a second waterproof layer 9 from the corrugated case interior to the corrugated case exterior.
Referring to fig. 1, the upper reinforcing layer 3 is a kraft layer, and the kraft layer is adhered and fixed to the surfaces of the inner paper board 2 and the first corrugated surface paper 41. Since the kraft layer is tough, water-resistant and strong, the corrugated box is more solid and hard inside by cooperating with the inner paper board 2; and the first waterproof layer 1 is matched, so that the double waterproof function in the corrugated case is realized.
Referring to fig. 1, the first paper core layer 4 includes a first corrugated surface paper 41, a first corrugated bottom paper 42, and a first corrugated core paper 43 disposed between the first corrugated surface paper 41 and the first corrugated bottom paper 42, the first corrugated surface paper 41, the first corrugated bottom paper 42, and the first corrugated core paper 43 may be an integral structure, and the first paper core layer 4 further includes a first reinforcing core 44 and a first flexible filler 45. The first corrugated medium paper 43 is in a toothed waveform structure, the first reinforcing core 44 is placed in the toothed waveform structure of the first corrugated medium paper 43, the first flexible filling body 45 is filled in the gap of the first paper core layer 4, and the first reinforcing core 44 is arranged in both the peak section and the trough section of the first corrugated medium paper 43 of the toothed waveform structure, so that the first reinforcing core 44 provided by the embodiment is cylindrical, the cross section of the first reinforcing core is tangent to the first corrugated medium paper 43 and the first corrugated surface paper 41 at the peak position and is tangent to the first corrugated medium paper 43 and the first corrugated base paper 42 at the trough position, and when the paperboard is impacted, the indentation of the paperboard can be effectively prevented, the impact strength of the paperboard is improved, the damage of insects and the like to the paperboard can be effectively avoided, and the service life is prolonged; the first flexible filling body 45 is arranged at the gap of the first paper core layer 4, that is, at the gap where the first corrugated surface paper 41, the first corrugated base paper 42, the first reinforcing core 44 and the first corrugated core paper 43 intersect, so that the first paper core layer 4 is full and has elasticity, when the paperboard is impacted and can bear pressure, the first flexible filling body 45 buffers the whole compression-resistant corrugated paperboard, reduces the influence of external vibration on the compression-resistant corrugated paperboard, can support the first paper core layer 4 to recover deformation, can also protect the internal structure of the first paper core layer 4 from being damaged, improves the stability, the practicability and the service life of the compression-resistant corrugated paperboard, and preferably, the first flexible filling body 45 can be a thermoplastic polyurethane elastomer or silica gel, and the thermoplastic polyurethane elastomer has elastic toughness, it is degradable and has no environmental pollution.
Referring to fig. 1, the honeycomb paperboard layer 5 has the largest strength-to-mass ratio compared with other board structures, so that the finished product has good cost performance, the honeycomb sandwich structure of the honeycomb paperboard layer 5 is approximately isotropic, the structural stability is good, the honeycomb sandwich structure is not easy to deform, the outstanding compression resistance and bending resistance are the most important characteristics required by a box-type packaging material, and when the compression-resistant corrugated paperboard is subjected to an external force, the first corrugated medium paper 43 and the second corrugated medium paper 63 cooperate to distribute the applied force, the external force can be transmitted to the honeycomb paperboard layer 5 to play a role in sharing the applied force.
Referring to fig. 1, the second paper core layer 6 includes a second corrugated surface paper 61, a second corrugated bottom paper 62, and a second corrugated core paper 63 disposed between the second corrugated surface paper 61 and the second corrugated bottom paper 62, the second corrugated surface paper 61, the second corrugated bottom paper 62, and the second corrugated core paper 63 may be an integral structure, and the second paper core layer 6 further includes a second reinforcing core and a second flexible filler 65. The second corrugated medium 63 is in a toothed waveform structure, the second reinforcing core 64 is placed in the toothed waveform structure of the second corrugated medium 63, the second flexible filler 65 is filled in the gap of the second medium layer 6, and the second reinforcing core 64 is arranged in both the peak section and the trough section of the second corrugated medium 63 of the toothed waveform structure, so that the second reinforcing core 64 provided by the embodiment is cylindrical, the cross section of the second reinforcing core 64 is tangent to the second corrugated medium 63 and the second corrugated surface paper 61 at the peak position and is tangent to the second corrugated medium 63 and the second corrugated base paper 62 at the trough position, and when the paperboard is impacted, the indentation of the paperboard can be effectively prevented, the impact strength of the paperboard can be improved, the damage of insects and the like to the paperboard can be effectively avoided, and the service life can be prolonged; the cooperation is in simultaneously the space department of second refill layer 6, promptly second corrugated surface paper 61 second flute base paper 62 the second is strengthened the core 64 and the crossing space department of second flute core paper 63 is provided with second flexible filling body 65 makes second refill layer 6 is full and full, and has elasticity for the cardboard is when receiving the striking ability bearing pressure, second flexible filling body 65 cushions whole resistance to compression type corrugated container board, reduces the influence of outside vibrations resistance to compression type corrugated container board, can support first refill layer 4 recovers the deformation, also can protect this first refill layer 4 inner structure not destroyed, has improved this resistance to compression type corrugated container board's stability, practicality and life, as preferred, second flexible filling body 65 can be EPE pearl cotton, the good plastic property of EPE pearl cotton is good, The EPE pearl wool has the characteristics of water resistance and moisture resistance, is environment-friendly, can be recycled, and can reduce the production cost.
Referring to fig. 1, the first corrugated medium paper 43 and the second corrugated medium paper 63 are symmetrically arranged about the honeycomb paperboard layer 5 in a tooth-shaped wave structure, and the peaks of the first corrugated medium paper 43 and the peaks of the second corrugated medium paper 63 are opposite to each other, so that when the pressure-resistant corrugated cardboard is subjected to an external force, the first corrugated medium paper 43 and the second corrugated medium paper 63 are matched to share the stress and transmit the external force to the honeycomb paperboard layer 5.
Referring to fig. 1, the moisture release layer is arranged between the second paper core layer 6 and the outer paper board 8, the moisture proof layer 7 is made of polyethylene foam, the polyethylene foam is a high polymer material formed by dispersing a large number of gas micropores in solid plastic, has the characteristics of light weight, heat insulation, sound absorption, shock absorption and the like, hardly absorbs water and hardly permeates water vapor, is not wetted after being used in a humid environment for a long time, has excellent moisture proof effect, and is matched with the second waterproof layer 9 to jointly realize and improve the waterproof and moisture proof functions outside the corrugated carton box body.
Referring to fig. 1, therefore, the pressure-resistant corrugated cardboard of the present embodiment includes a first waterproof layer 1, an inner cardboard 2, an upper reinforcing layer 3, a first paper core layer 4, a honeycomb cardboard layer 5, a second paper core layer 6, a moisture-resistant layer 7, an outer cardboard 8, and a second waterproof layer 9, by providing the first corrugated medium 43 and the second corrugated medium 63 in a tooth-like wave structure in the first paper core layer 4 and the second paper core layer 6, and the first reinforcing core 44 and the second reinforcing core 64 are placed in the crest segments and the trough segments of the toothed wavy structures of the first corrugated medium 43 and the second corrugated medium 63, when the paperboard is impacted, the paperboard can be effectively prevented from sinking, the impact strength of the paperboard is improved, the damage of insects and the like to the paperboard can be effectively avoided, and the service life is prolonged; the first flexible filling body 45 and the second flexible filling body 65 are arranged in the gap between the first paper core layer 4 and the second paper core layer 6 in a matched mode, so that the first paper core layer 4 and the second paper core layer 6 are full and elastic, the whole compression-resistant corrugated board is buffered by the first flexible filling body 45 and the first flexible filling body 45 when the board is impacted and can bear pressure, the influence of external vibration on the compression-resistant corrugated board is reduced, the first paper core layer 4 and the first paper core layer 4 can be supported to recover deformation respectively, the internal structures of the first paper core layer 4 and the second paper core layer 6 are protected from being damaged, and the stability, the practicability and the service life of the compression-resistant corrugated board are improved; the first corrugated medium paper 43 and the second corrugated medium paper 63 are symmetrically arranged about the honeycomb paperboard layer 5 and are in a toothed waveform structure, peaks of the first corrugated medium paper 43 and peaks of the second corrugated medium paper 63 are opposite to each other, when the pressure-resistant corrugated paperboard is subjected to external force, the first corrugated medium paper 43 and the second corrugated medium paper 63 are matched to share the stress, and meanwhile, the external force can be transmitted to the honeycomb paperboard layer 5, so that the pressure-resistant function of the pressure-resistant corrugated paperboard is realized in a matched manner, the paperboard can be effectively prevented from sinking, the impact strength of the paperboard is improved, and the stability, the practicability and the service life of the pressure-resistant corrugated paperboard are improved; meanwhile, the kraft layer is matched with the first waterproof layer 1, the dual waterproof function inside the corrugated carton is realized, the moisture release layer is matched with the second waterproof layer 9, the waterproof and moistureproof functions outside the corrugated carton box body are realized, the inside and the outside of the corrugated carton box body can be waterproof, and the service life of the corrugated carton box body is greatly prolonged.
The above description is only for the specific embodiments of the present invention, but it should be understood by those skilled in the art that the present invention is only by way of example, and the scope of the present invention is defined by the appended claims. Therefore, the equivalent changes made in the claims of the present invention still belong to the scope covered by the present invention.
Claims (9)
1. The utility model provides a resistance to compression type corrugated container board, its is applied to a corrugated container box, corrugated container box includes that a corrugated container box that is used for placing object article is inside and deviates from inside a corrugated container box of corrugated container box is outside, resistance to compression type corrugated container board by inside of corrugated container box extremely corrugated container box's outside has set gradually an interior cardboard, a first paper core layer, a honeycomb paperboard layer, a second paper core layer and an outer cardboard, first paper core layer includes a first corrugated surface paper, a first corrugated bottom paper and sets up first corrugated surface paper with between the first corrugated bottom paper, second paper core layer includes a second corrugated surface paper, a second corrugated bottom paper and sets up second corrugated bottom paper between the second corrugated surface paper with between the second corrugated bottom paper, its characterized in that: the first corrugated medium paper and the second corrugated medium paper are in a toothed waveform structure and are symmetrically arranged relative to the honeycomb paperboard layer, the first paper core layer further comprises a first reinforcing core and a first flexible filling body, the second paper core layer further comprises a second reinforcing core and a second flexible filling body, the first reinforcing core and the second reinforcing core are respectively placed in the wave crest and the wave trough of the toothed waveform structure of the first corrugated medium paper and the second corrugated medium paper, and the first flexible filling body and the second flexible filling body are respectively filled in the gap between the first paper core layer and the second paper core layer.
2. The crush-resistant corrugated cardboard of claim 1, wherein the first corrugated surface paper, the first corrugated base paper and the first corrugated medium paper are of an integrally formed structure.
3. The crush-resistant corrugated cardboard of claim 1, wherein said second corrugated surface paper, said second corrugated base paper and said second corrugated medium paper are of an integrally formed structure.
4. The crush resistant corrugated paperboard of claim 1 wherein said first flexible filler is a thermoplastic polyurethane elastomer.
5. The crush resistant corrugated paperboard of claim 1 wherein said second flexible filler is EPE pearl wool.
6. The pressure-resistant corrugated cardboard of claim 1, wherein the pressure-resistant corrugated cardboard further comprises a first waterproof layer, the first waterproof layer being disposed toward the inside of the corrugated box body on the basis of the inner paper sheet.
7. The crush-resistant corrugated cardboard of claim 1, further comprising an upper reinforcing layer disposed between the inner cardboard and the first core layer.
8. The pressure-resistant corrugated cardboard of claim 1, wherein the pressure-resistant corrugated cardboard further comprises a second waterproof layer, the second waterproof layer being disposed toward the outside of the corrugated box body on the basis of the outer paper sheet.
9. The crush-resistant corrugated cardboard of claim 1, further comprising a moisture barrier layer disposed between said second core layer and said outer cardboard, said moisture barrier layer being a polyethylene foam.
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| CN201921864623.8U CN211493144U (en) | 2019-10-31 | 2019-10-31 | Resistance to compression type corrugated container board |
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| CN201921864623.8U CN211493144U (en) | 2019-10-31 | 2019-10-31 | Resistance to compression type corrugated container board |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112143282A (en) * | 2020-09-24 | 2020-12-29 | 晋江市顺力纸箱有限公司 | Environment-friendly water-based ink, environment-friendly high-strength compression-resistant color box and manufacturing method thereof |
| CN112195008A (en) * | 2020-09-24 | 2021-01-08 | 晋江市顺力纸箱有限公司 | Environment-friendly adhesive, high-performance shock-absorbing environment-friendly carton and manufacturing method thereof |
| CN112941970A (en) * | 2021-02-20 | 2021-06-11 | 嘉兴纸梦公园文化传播有限公司 | Processing technology, processing device and application of single-side vertical tile paperboard |
| CN113562289A (en) * | 2021-07-29 | 2021-10-29 | 乐清市赋源包装有限公司 | Environment-friendly carton packaging box and manufacturing process thereof |
| CN113580674A (en) * | 2021-07-31 | 2021-11-02 | 乐清市赋源包装有限公司 | Environment-friendly corrugated carton and manufacturing method thereof |
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2019
- 2019-10-31 CN CN201921864623.8U patent/CN211493144U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112143282A (en) * | 2020-09-24 | 2020-12-29 | 晋江市顺力纸箱有限公司 | Environment-friendly water-based ink, environment-friendly high-strength compression-resistant color box and manufacturing method thereof |
| CN112195008A (en) * | 2020-09-24 | 2021-01-08 | 晋江市顺力纸箱有限公司 | Environment-friendly adhesive, high-performance shock-absorbing environment-friendly carton and manufacturing method thereof |
| CN112941970A (en) * | 2021-02-20 | 2021-06-11 | 嘉兴纸梦公园文化传播有限公司 | Processing technology, processing device and application of single-side vertical tile paperboard |
| CN112941970B (en) * | 2021-02-20 | 2021-10-15 | 嘉兴纸梦公园文化传播有限公司 | Processing technology, processing device and application of single-side vertical tile paperboard |
| CN113562289A (en) * | 2021-07-29 | 2021-10-29 | 乐清市赋源包装有限公司 | Environment-friendly carton packaging box and manufacturing process thereof |
| CN113562289B (en) * | 2021-07-29 | 2023-01-17 | 乐清市赋源包装有限公司 | Environment-friendly carton packaging box and manufacturing process thereof |
| CN113580674A (en) * | 2021-07-31 | 2021-11-02 | 乐清市赋源包装有限公司 | Environment-friendly corrugated carton and manufacturing method thereof |
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