CN215751266U

CN215751266U - Corrugated paper board

Info

Publication number: CN215751266U
Application number: CN202121692062.5U
Authority: CN
Inventors: 张朝辉; 张朝娥; 闫绍峰
Original assignee: Hangzhou Kangning Paper Co ltd
Current assignee: Hangzhou Kangning Paper Co ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2022-02-08
Anticipated expiration: 2031-07-23

Abstract

The application relates to a corrugated container board, including corrugated container board basic unit, corrugated container board basic unit's surface is provided with first waterproof layer, first waterproof layer is the paraffin layer. The paraffin layer can change the roughness and the surface morphology of the outer surface of the corrugated board base body, a lotus effect is formed, the outer surface of the corrugated board base body has super-hydrophobicity, when the corrugated board is in a humid environment, water can be gathered on the outer surface of the corrugated board base body to form water drops, the water becomes water drop sliding, the possibility that the water is accumulated on the surface of the corrugated board base body is reduced, the possibility that the water penetrates into the interior of the corrugated board base body is further reduced, the corrugated board has a good waterproof effect, and the service life of the corrugated board is prolonged. This application has the life's of extension corrugated container board effect.

Description

Corrugated paper board

Technical Field

The application relates to the field of packaging materials, in particular to a corrugated board.

Background

Corrugated board is also called corrugated board. Is formed by bonding at least one layer of corrugated paper and one layer of boxboard paper, and has better elasticity and extensibility. The method is mainly used for manufacturing cartons, the sandwich of the cartons and other packaging materials of fragile commodities.

At present, chinese patent No. CN207672340U discloses a corrugated board, which includes two layers of paper boards and a corrugated core paper interlayer located between the two layers of paper boards, wherein a rib board paper extending perpendicular to the direction of the corrugated core paper is disposed in a gap corresponding to each peak and trough, and both sides of each rib board paper extend to rib portions of corresponding wave bands on the core paper interlayer and are attached thereto.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the corrugated board is used, under a humid environment, the corrugated board has the possibility of being penetrated by water due to the poor waterproof effect of the corrugated board, so that the structure of the corrugated board is damaged, and the service life of the corrugated board is shortened.

SUMMERY OF THE UTILITY MODEL

In order to prolong the service life of corrugated cardboard, this application discloses corrugated cardboard.

The application provides a corrugated container board adopts following technical scheme:

corrugated container board, including corrugated board base member, the surface of corrugated board base member is provided with first waterproof layer, first waterproof layer is the paraffin layer.

By adopting the technical scheme, the paraffin layer can change the roughness and the surface morphology of the outer surface of the corrugated board substrate, a lotus effect is formed, the outer surface of the corrugated board substrate has super-hydrophobicity, when the corrugated board is in a humid environment, water can be gathered on the outer surface of the corrugated board substrate to form water drops, the water becomes water drop sliding, the possibility that the water is accumulated on the surface of the corrugated board substrate is reduced, the possibility that the water penetrates into the interior of the corrugated board substrate is reduced, the corrugated board substrate has a good waterproof effect, and the service life of the corrugated board substrate is prolonged.

Optionally, the first waterproof layer has regular grooves.

By adopting the technical scheme, the molten paraffin is smeared on the outer surface of the corrugated board substrate, and when the paraffin is smeared on the outer surface of the corrugated board substrate and is not solidified, the paraffin layer is provided with regular grooves through tool pressing, so that on one hand, water drops can be effectively guided to be discharged to the outside of the corrugated board substrate from the grooves; on the other hand, the grooves can increase the roughness of the outer surface of the corrugated board base body, so that when workers carry the carton made of the corrugated board, the friction force between the hands of the human body and the outer surface of the carton is increased, and the possibility that the carton falls off from the hands of the workers is reduced.

Optionally, the inner surface of the corrugated board substrate is provided with a second waterproof layer, and the second waterproof layer is a polyurethane waterproof coating layer.

By adopting the technical scheme, articles possibly containing moisture can be transported in the transportation process of the carton made of the corrugated board, and the second waterproof layer can reduce the moisture from entering the corrugated board substrate from the inner surface of the corrugated board substrate, so that the service life of the corrugated board is further prolonged; the polyurethane waterproof coating has the advantages of environmental protection, no toxicity, no odor, no environmental pollution, no harm to human bodies, good weather resistance, no flowing at high temperature, no cracking at low temperature, excellent ageing resistance, oil resistance, wear resistance, ozone resistance, acid and alkali corrosion resistance; the coating is compact, and has both waterproof and gas-insulating functions.

Optionally, the corrugated container board base member includes outer box board paper layer, first core paper layer, intermediate junction layer, second core paper layer and interior box board paper layer by outer to interior in proper order, first waterproof layer sets up in the surface of outer box board paper layer, outer box board paper layer sets up in the surface of first core paper layer, the intermediate junction layer sets up between first core paper layer and second core paper layer, second core paper layer sets up in the surface of interior box board paper layer, the second waterproof layer sets up in the internal surface of interior box board paper layer.

Through adopting above-mentioned technical scheme, outer carton paper layer, first core paper layer, intermediate junction layer, second core paper layer and inner box board paper layer interact, form corrugated container board base member.

Optionally, the first core paper layer includes a plurality of V-shaped corrugated paper cores, and the V-shaped corrugated paper cores are integrally connected to form a continuous folded paper core.

By adopting the technical scheme, the V-shaped corrugated paper cores are mutually parallel to form a row and mutually support to form a triangular structure body, so that the stability is good, the compressive strength is high, and the compressive strength of the corrugated board is increased.

Optionally, the V-shaped corrugated paper core is covered with a first waterproof coating layer.

Through adopting above-mentioned technical scheme, further increase the water-proof effects of first core paper layer in the corrugated container board, reduce the destroyed possibility of the structure of first core paper layer.

Optionally, the second core paper layer includes a plurality of trapezoidal corrugated paper cores, and the plurality of trapezoidal corrugated paper cores are integrally connected to form a continuous wavy paper core.

Through adopting above-mentioned technical scheme, trapezoidal corrugated paper core is when receiving the effort, because trapezoidal corrugated paper core is big with intermediate junction layer and inner box ply paper's area of contact, can absorb higher energy in the compressive deformation, and the cushioning nature is good for the carton that uses corrugated container board to make has certain effect of protection article in the transportation.

Optionally, the trapezoidal corrugated paper core is covered with a second waterproof coating layer.

Through adopting above-mentioned technical scheme, further increase the water-proof effects of second core paper layer in the corrugated container board, reduce the destroyed possibility of second core paper layer's structure.

Optionally, the intermediate connection layer is filled with an elastomer.

Through adopting above-mentioned technical scheme, the elastomer has high elastic characteristic, and when corrugated container board pressurized deformation, middle connecting layer can have the effect of recovering the deformation, reduces the possibility of the dislocation of the junction of first core paper layer and middle connecting layer.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the paraffin layer can change the roughness and the surface form of the outer surface of the corrugated board substrate to form a lotus effect, so that the outer surface of the corrugated board substrate has super-hydrophobicity, when the corrugated board is in a humid environment, water can be gathered on the outer surface of the corrugated board substrate to form water drops, and the water drops slide down, so that the possibility that the water is accumulated on the surface of the corrugated board substrate is reduced, the possibility that the water drops penetrate into the corrugated board substrate is further reduced, the corrugated board has a good waterproof effect, and the service life of the corrugated board is prolonged;

2. the second waterproof layer can reduce the water entering the corrugated board substrate from the inner surface of the corrugated board substrate, so that the service life of the corrugated board is further prolonged; the polyurethane waterproof coating has the advantages of environmental protection, no toxicity, no odor, no environmental pollution, no harm to human bodies, good weather resistance, no flowing at high temperature, no cracking at low temperature, excellent ageing resistance, oil resistance, wear resistance, ozone resistance, acid and alkali corrosion resistance; the coating is dense, and has both waterproof and gas-insulating functions;

the V-shaped corrugated paper core, the middle connecting layer and the trapezoidal corrugated paper core are combined with one another, so that the corrugated board has good compressive strength and a buffering effect, and when articles are transported, the carton made of the corrugated board has a good article protecting effect.

Drawings

Fig. 1 is a schematic view of the overall structure of a corrugated cardboard.

In the figure, 1, a first waterproof layer; 11. a groove; 2. an outer box board paper layer; 3. a first core paper layer; 31. a V-shaped corrugated paper core; 32. a first waterproof coating layer; 4. an intermediate connection layer; 41. an elastomer; 5. a second core paper layer; 51. a trapezoidal corrugated paper core; 52. a second waterproof coating layer; 6. an inner box board paper layer; 7. and a second waterproof layer.

Detailed Description

The present application is described in further detail below with reference to fig. 1.

The embodiment of the application discloses a corrugated board.

Referring to fig. 1, the corrugated board comprises a corrugated board substrate, and the corrugated board substrate sequentially comprises an outer box board paper layer 2, a first core paper layer 3, an intermediate connecting layer 4, a second core paper layer 5 and an inner box board paper layer 6 from outside to inside. Outer case board paper layer 2 sets up in the surface of first core paper layer 3, and intermediate junction layer 4 is located between first core paper layer 3 and the second core paper layer 5, and second core paper layer 5 sets up in the surface of inner case board paper layer 6, and outer case board paper layer 2, first core paper layer 3, intermediate junction layer 4, second core paper layer 5 and inner case board paper layer 6 all bond each other through starch adhesive.

Referring to fig. 1, the outer cardboard paper layer 2 and the inner cardboard paper layer 6 are kraft paper layers, and the kraft paper is flexible and firm, has high bursting strength, and can bear large tensile force and pressure without breaking.

Referring to fig. 1, the outer surface of outer carton board paper layer 2 is scribbled and is equipped with first waterproof layer 1, and first waterproof layer 1 is the paraffin layer, and molten paraffin is scribbled and is formed first waterproof layer 1 on outer carton board paper layer 2, and when paraffin scribbled and still not solidified on outer carton board paper layer 2, make the paraffin layer have regular recess 11 through the instrument pressfitting. The paraffin layer changes the roughness and the surface morphology of the outer surface of the outer box board paper layer 2 to form a lotus effect, so that the outer surface of the outer box board paper layer 2 has super-hydrophobicity, when the corrugated board is in a humid environment, moisture can be gathered on the outer surface of the outer box board paper layer 2 to form water drops, the water drops are guided by the groove 11, and the possibility that the water drops permeate into the corrugated board base body is reduced.

Referring to fig. 1, the first core paper layer 3 includes a plurality of V-shaped corrugated paper cores 31, and the plurality of V-shaped corrugated paper cores 31 are integrally connected to form a continuous folded paper core. The inner surface and the outer surface of the V-shaped corrugated paper core 31 are covered with a first waterproof coating layer 32, the first waterproof coating layer 32 may be a high-elastic waterproof coating, a waterproof anticorrosive coating, a composite waterproof coating, or the like, and the embodiment adopts an acrylic waterproof coating of the high-elastic waterproof coating. The acrylic waterproof coating has high elasticity and strong bonding force, is integrated with the V-shaped corrugated paper core 31 to form a layer of waterproof layer with compact crystallization, is environment-friendly, nontoxic and harmless, and has acid resistance, alkali resistance, high temperature resistance, excellent aging resistance and good corrosion resistance. The top end of the V-shaped corrugated paper element 31 is bonded to the outer box board paper layer 2, and the bottom end of the V-shaped corrugated paper element 31 is bonded to the intermediate connecting layer 4.

Referring to fig. 1, the intermediate connection layer 4 is a corrugated paper layer, the intermediate connection layer 4 has a cavity, the cavity is filled with an elastomer 41, the elastomer 41 may be a thermosetting elastomer, a thermoplastic elastomer, or the like, and in this embodiment, a thermoplastic elastomer, which is also called an elastomer or a synthetic rubber, is used. The thermoplastic elastomer has good impact resistance, fatigue resistance, high impact strength, good low-temperature flexibility, good performance maintained at the temperature rise, high tear strength, high friction resistance, easy processing, economy and good recyclability.

Referring to fig. 1, the second core paper layer 5 includes a plurality of trapezoidal corrugated paper cores 51, and the plurality of trapezoidal corrugated paper cores 51 are integrally connected to form a continuous wave-shaped paper core. The inner surface and the outer surface of the trapezoidal corrugated paper core 51 are both covered with a second waterproof coating 52, and in this embodiment, the second waterproof coating is also acrylic waterproof coating. The top end of the trapezoidal corrugated paper core 51 is bonded to the intermediate connecting layer 4, and the bottom end of the trapezoidal corrugated paper core 51 is bonded to the inner box paperboard layer 6.

Referring to fig. 1, a second waterproof layer 7 is coated on the inner surface of the inner box board paper layer 6, the second waterproof layer 7 is a polyurethane waterproof coating layer, and the polyurethane waterproof coating is coated on the inner surface of the inner box board paper layer 6 to form the second waterproof layer 7.

The above is a preferred embodiment of the present application, and the scope of protection of the present application is not limited by the above, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. Corrugated container board, its characterized in that: the corrugated board comprises a corrugated board base body, wherein a first waterproof layer (1) is arranged on the outer surface of the corrugated board base body, and the first waterproof layer (1) is a paraffin layer; the inner surface of corrugated board base member is provided with second waterproof layer (7), second waterproof layer (7) are polyurethane waterproof coating layer.

2. Corrugated board according to claim 1, characterized in that: the first waterproof layer (1) is provided with regular grooves (11).

3. Corrugated board according to claim 1, characterized in that: the corrugated board base body comprises an outer box board paper layer (2), a first core paper layer (3), an intermediate connecting layer (4), a second core paper layer (5) and an inner box board paper layer (6) from outside to inside in sequence, wherein a first waterproof layer (1) is arranged on the outer surface of the outer box board paper layer (2), the outer box board paper layer (2) is arranged on the outer surface of the first core paper layer (3), the intermediate connecting layer (4) is arranged between the first core paper layer (3) and the second core paper layer (5), the second core paper layer (5) is arranged on the outer surface of the inner box board paper layer (6), and a second waterproof layer (7) is arranged on the inner surface of the inner box board paper layer (6).

4. Corrugated board according to claim 3, characterized in that: the first core paper layer (3) comprises a plurality of V-shaped corrugated paper cores (31), and the V-shaped corrugated paper cores (31) are integrally connected to form a continuous bent paper core.

5. Corrugated board according to claim 4, characterized in that: the V-shaped corrugated paper core (31) is covered with a first waterproof coating layer (32).

6. Corrugated board according to claim 5, characterized in that: the second core paper layer (5) comprises a plurality of trapezoidal corrugated paper cores (51), and the trapezoidal corrugated paper cores (51) are integrally connected to form a continuous wavy paper core.

7. Corrugated board according to claim 6, characterized in that: the trapezoidal corrugated paper core (51) is covered with a second waterproof coating layer (52).

8. Corrugated board according to claim 7, characterized in that: the intermediate connection layer (4) is filled with an elastomer (41).