Environment-friendly adhesive explosion-proof wire paperboard

Abstract

The present application relates to a kind of environment-friendly type explosion-proof line paperboard of bonding, belong to paperboard technical field, including and the inner face layer of contact with packing, first wave layer is fixed on inner face layer, first wave layer is covered with first inner liner, first inner liner is equipped with explosion-proof line part, explosion-proof line part includes outer contact layer, lower exhibition ditch recessed towards inner face layer direction is equipped on outer contact layer, support component is equipped between outer contact layer and first inner liner, second wave layer is equipped on first inner liner, the present application can provide better external bearing capacity and buffering effect when using, when needing to bend paperboard itself, still can be bent to paperboard more smoothly, specifically for bending position will be limited in corresponding lower exhibition ditch, outer contact layer can be better followed bending and movement when bending, avoid the pulling between layer structure, can show better bearing capacity, support strength and explosion-proof line performance under the premise of less bending layer number.

Description

TECHNICAL FIELD

[0001] The present application relates to the paperboard technical field, in particular to a kind of adhesive environment-friendly type anti-burst paperboard. BACKGROUND

[0002] Paperboard is often used in real life as the outer packaging material of various products, and the commonly used way is to make corrugated paperboard and boxboard by multi-layer structure, paperboard is widely used due to its environmental green attribute, even in the case of lighter weight, it can provide higher strength and stiffness, when reasonably packaging product, paperboard needs to be necessary bending, and some products need better shock resistance and protection due to transportation demand, therefore, the layer structure of paperboard needs to be increased, but the more layers of paperboard, the more prone to burst problem when bending.

[0003] As Chinese invention application file, the publication number CN110626040A discloses a kind of corrugated paperboard, it includes by lower to upper sequentially layering arrangement corrugated paper layer, yarn layer and first face paper layer, the two sides of the yarn layer are respectively bonded to the corrugated paper layer and the first face paper layer.The corrugated paperboard of the present application, the wear resistance of the corrugated paperboard is greatly improved by yarn layer, the tensile strength and the tensile strength are greatly improved, effectively avoid the damage caused by the wear of the corrugated paperboard.At the same time, the product material of yarn layer is completely recyclable raw material, low in cost, easy to popularize and apply.

[0004] The above-mentioned document discloses a kind of corrugated paperboard, which can improve paper strength on the basis of environmental protection, however, in real use environment, some cases need to be slotted, die-cut, nail and bend paperboard and other operations, and the use of yarn layer makes the paperboard as a whole harder, more prone to burst when bending paperboard, especially when paperboard needs to provide better support protection performance, more layers are more prone to burst. SUMMARY

[0005] To overcome the technical defects existing in the prior art, the present application provides an adhesive environment-friendly type anti-burst paperboard, which has good anti-burst effect.

[0006] The technical scheme adopted by the present application is: an inner layer in contact with a packaging material, the inner layer is used to directly contact the packaged product in the present application, a first corrugated layer is fixed on the inner layer, the first corrugated layer mainly provides pressure resistance for the paperboard and can play a buffering role after being impacted, which is a commonly used technical means in the prior art, a first inner lining layer is arranged on the first corruggated layer, the peaks and valleys of the first corrugated layer are fixed by adhesives and the inner layer and the first inner lining layer on the opposite side, in order to make the product material more environmentally friendly, starch adhesive is used to reduce the use of chemical adhesive, the first inner lining layer is provided with an anti-burst line part, the anti-burst line part is located on the surface of the paperboard product and can directly contact the outside, and when an external force is applied, the anti-burst line part can provide a certain supporting force for the whole paperboard product, disperse the external force, and when bending, the anti-burst part is used to limit the crease to one side, so that the part with a relatively simple layer structure is bent, thereby avoiding the direct interaction of the structure and causing the burst line, in the existing paperboard product, the increase in the number of layers of the paperboard will increase the burst rate, because when the paperboard is stacked or bent, the uneven stress inside the paperboard will pull the corresponding structure, and the internal structure of the paperboard is directly fixed by the adhesive, when the force received at the joint reaches the limit, the joint will be separated and cracked, and when the weather is dry, the water loss in the paperboard will cause the internal structure of the paperboard to crack, and the paperboard is more prone to burst when bent, the anti-burst line part comprises an outer contact layer, the outer contact layer and the inner layer are also directly in contact with the external environment and are used to directly provide the folding resistance of the whole paperboard product, and the outer contact layer is preferably made of kraft paper or coated paper, the outer contact layer is provided with a lower expansion groove recessed towards the inner layer, the lower expansion groove is used to store a certain amount of expandable outer contact layer, and when necessary, that is, when the paperboard product receives a force sufficient to cause bending, the outer contact layer in the lower expansion groove can deform under stress, and a support member is arranged between the outer contact layer and the first inner lining layer.

[0007] Preferably, in order to enhance the load-bearing capacity of the paperboard product, a second corrugated layer is arranged on the first inner lining layer, a second inner lining layer is arranged between the second corrugated layer and the support member, the corrugated shapes of the first corrugated layer and the second corrugated layer are both UV-shaped, and the structure of the second corrugated layer and the second inner lining layer is matched to increase the number of layers of the paperboard structure, the number of layers is superimposed to improve the load-bearing capacity and impact resistance of the paperboard, when used in combination with other articles, for example, articles that require better shock absorption and protection during packaging, increasing the number of layers can better meet the use requirements, the commonly used number of layers of the existing paperboard is three, five and seven, but the corresponding multi-layer structure is more difficult to bend.

[0008] Preferably, in order to further improve the bearing strength of the outer contact layer by the support member, the support member comprises a distal layer bonded with the outer contact layer, the distal layer covers one side of the outer contact layer and mainly functions as the base of the fixed partition layer, a partition layer is arranged on the distal layer and is perpendicular to the outer contact layer, the partition layer is used to provide support force while reducing the use of materials, one side of the partition layer is connected with an inner ring layer, the inner ring layer is used to better bear force so that the force transmitted by the partition layer is dispersed on the inner ring layer, the inner ring layer extends outward along the second inner lining layer, and the outer contact layer corresponding to the part of the lower expansion groove is bonded with the inner ring layer, that is, the part of the inner ring layer extending outward is fixed with the outer contact layer.

[0009] Preferably, in order to further enhance the shock absorption performance of the paperboard product, shock absorption fillers are filled between the partition layers and between the inner ring layer or the second inner lining layer, and the shock absorption fillers are crimped core paper layers.

[0010] Preferably, in order to increase the external structural style of the paperboard, flexibly adapt to different appearance requirements, and be able to adjust the structure according to some conditions, in the use process of the paperboard, for example, when the paperboard is used as the outer packaging of an article, it is necessary to print patterns on the paperboard, the flat surface can be used as a printing surface to display patterns, and the flat surface can expand the area of the side surface, so that the appearance is flat and easy to stack, a flat surface parallel to the first inner lining layer is arranged on the outer contact layer, the flat surface is located on one side of the lower expansion groove, and a transition arc surface is arranged between the flat surface and the lower expansion groove.

[0011] Preferably, in order to better adapt to the paperboard bent in different directions, the positions of the lower expansion grooves on the outer contact layer are several columns and rows in two directions, a flat surface is arranged on the outer contact layer between the lower expansion grooves, and a transition arc surface is arranged between the flat surface and the lower expansion groove.

[0012] Preferably, in order to better provide support force, the partition layers on the outer contact layer are arranged corresponding to the lower expansion grooves, the lower expansion grooves in two directions are arranged perpendicular to each other, and the mutually perpendicular partition layers can further enhance the support force and structural strength of the corresponding flat parts.

[0013] Preferably, in order to expand the range involved when the paperboard is bent and avoid inducing line burst due to excessive layer structure of the corresponding paperboard part, an expansion surface is arranged at the bottom of the lower expansion groove, the expansion surface is parallel to the inner surface layer, and the bottom of the outer contact layer is coated with an adhesive only below the edge corresponding to the lower expansion groove.

[0014] The beneficial effects of the present application are: the present application can provide better external bearing capacity and buffering effect when in use, and when the paperboard itself needs to be bent, the paperboard can still be bent more smoothly, specifically, the bending position will be limited in the corresponding lower expansion groove, and the outer contact layer can better follow the bending and move, avoiding the pulling between the layer structures, which can realize better bearing capacity, support strength and anti-explosion line performance under the premise of fewer bending layers. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of embodiment 1 of the present application.

[0016] Figure 2 It is a structural schematic diagram of embodiment 1 of the present application. Figure 1 It is an enlarged structural schematic diagram of position A in the middle.

[0017] Figure 3 It is a structural schematic diagram of embodiment 2 of the present application.

[0018] Figure 4 It is a structural schematic diagram of embodiment 2 of the present application. Figure 3 It is an enlarged structural schematic diagram of position B in the middle.

[0019] Figure 5 It is a structural schematic diagram of embodiment 3 of the present application.

[0020] Figure 6 It is a structural schematic diagram of embodiment 4 of the present application.

[0021] Figure 7 It is a structural schematic diagram of embodiment 5 of the present application.

[0022] Figure 8 It is a sectional structural schematic diagram of the support member in embodiment 5 of the present application.

[0023] Explanation of reference signs: in the figure: 1, inner surface layer; 2, first wave layer; 3, first inner lining layer; 4, anti-explosion line part; 401, outer contact layer; 402, lower expansion groove; 403, flat surface; 404, transition arc surface; 405, expansion surface; 5, support member; 501, distal layer; 502, spacer layer; 503, inner ring layer; 6, second wave layer; 7, second inner lining layer; 8, shock-absorbing filler. DETAILED DESCRIPTION

[0024] The present application will be further described below in conjunction with the drawings:

[0025] Embodiment 1

[0026] As Figure 1 and Figure 2As shown, the embodiment provides a kind of adhesive type environmental protection type explosion-proof line paperboard, including and the inner surface layer 1 of contact with packing, the inner surface layer 1 is used for directly contacting the product to be packaged in the application, first wave layer 2 is fixed on the inner surface layer 1, first wave layer 2 mainly provides pressure resistance for paperboard and can play the role of buffering after being impacted, it is the technical means commonly used in the prior art, first wave layer 2 is covered with first inner liner 3, the up and down vertex of the ups and downs of first wave layer 2 is adhered and fixed with inner surface layer 1 and first inner liner 3 on the opposite side, in order to product material more environmental protection, then use starch adhesive, reduce the use of chemical adhesive, first inner liner 3 is provided with explosion-proof line part 4, explosion-proof line part 4 is located on the surface of paperboard product and can directly contact outside, when being subjected to external force, it can provide certain support force for the whole paperboard product, disperse external force, and when bending, explosion-proof part is used to limit crease on one side, make the part of relatively layer structure simple to bend, avoid the direct interaction of structure and cause explosion line, in the existing paperboard product, the number of layers of paperboard increases and will cause the increase of explosion line rate, because when stacking or bending processing of paperboard, the stress uneven in paperboard will pull the corresponding structure, and the structure in paperboard is directly fixed by adhesive, when the force received at the joint point reaches the limit, it will be separated and cracked, and similarly when weather is dry, the water loss in paperboard will cause the structure in paperboard to crack, and it is more prone to produce explosion line when bending processing, explosion-proof line part 4 includes outer contact layer 401, outer contact layer 401 and inner surface layer 1 are also directly contacted with external environment, for directly providing the folding resistance of the whole paperboard product, preferably using kraft paper or coated paper as the use material, outer contact layer 401 is provided with lower expansion groove 402 recessed towards inner surface layer 1, lower expansion groove 402 is used to store a certain amount of expandable outer contact layer 401, when necessary, i.e. when paperboard product is subjected to enough force to produce bending, the outer contact layer 401 of lower expansion groove 402 part can deform under stress, support member 5 is arranged between outer contact layer 401 and first inner liner 3, second wave layer 6 is arranged on first inner liner 3, second inner liner 7 is arranged between second wave layer 6 and support member 5, the corrugation type of first wave layer 2 and second wave layer 6 is UV-shaped, the structure of second wave layer 6 and second inner liner 7 is used to increase the number of layers of paperboard structure, by superimposing the number of layers, the carrying capacity and impact resistance of paperboard are improved, when used with other articles, for example, when packaging articles need better shock absorption and protection, increasing the number of layers can better meet the use demand, the commonly used number of layers of existing paperboard is three, five and seven, but the corresponding multi-layer structure is more difficult to bend, which can enhance the carrying capacity of paperboard product.

[0027] The support member 5 comprises a distal layer 501 bonded with the outer contact layer 401, the distal layer 501 covers one side of the outer contact layer 401 and mainly serves as the base of the fixed partition layer 502, the distal layer 501 is provided with the partition layer 502 perpendicular to the outer contact layer 401, the partition layer 502 is used to provide support force and reduce the use of materials at the same time, one side of the partition layer 502 is connected with the inner ring layer 503, the inner ring layer 503 is used to better bear force, so that the force transmitted by the partition layer 502 is dispersed on the inner ring layer 503, the inner ring layer 503 extends outward along the second inner liner layer 7, the part of the outer contact layer 401 corresponding to the lower expansion groove 402 is bonded with the inner ring layer 503, that is, the part of the inner ring layer 503 extending outward is fixed with the outer contact layer 401, so that the load-bearing strength of the outer contact layer 401 can be further improved by the support member 5, since the partition layer 502 and the distal layer 501 are fixed, and the contact area between the partition layer 502, the distal layer 501 and the inner ring layer 503 is small, when manufacturing the support member 5, the partition layer 502 can be extended and fixed on the corresponding distal layer 501 and inner ring layer 503, when implementing the present application, the outer contact layer 401 firstly receives external pressure, and then transmits the pressure to the internal support member 5, the partition layer 502 in the support member 5 can play a major supporting role, and when bending, the part of the outer contact layer 401 at the lower expansion groove 402 can be unfolded, and the inner surface layer 1, the first inner liner layer 3 and the second inner liner layer 7 can be bent, while the first wave layer 2 and the second wave layer 6 can produce sufficient deformation due to their structure.

[0028] The partition layer 502 and the inner ring layer 503 or the second inner liner layer 7 are filled with shock-absorbing fillers 8, and the shock-absorbing fillers 8 are crimped core paper layers, so that the shock-absorbing performance of the paperboard product can be further enhanced, and the core paper layer can also maintain more moisture to better maintain the water content of the paperboard.

[0029] Example 2

[0030] As Figure 3 and Figure 4As shown, the embodiment provides a kind of adhesive environmental protection type explosion-proof line paperboard, including and the inner surface layer 1 of contact with packing, the inner surface layer 1 is used for directly contacting the product to be packaged in the application, first wave layer 2 is fixed on the inner surface layer 1, first wave layer 2 mainly provides pressure resistance for paperboard and can play the role of buffering after being impacted, it is the technical means commonly used in the prior art, first wave layer 2 is covered with first inner liner 3, the up and down vertex of the ups and downs of first wave layer 2 is fixed by sticking agent and inner surface layer 1 and first inner liner 3 of opposite side, in order to product material more environmental protection, then use starch adhesive, reduce the use of chemical adhesive, first inner liner 3 is equipped with explosion-proof line part 4, explosion-proof line part 4 is located on the surface of paperboard product and can directly contact outside, when being subjected to external force, it can provide certain support force for the whole paperboard product, disperse external force, and when bending, explosion-proof part is used to limit crease on one side, make the part of relatively layer structure simple to bend, avoid the direct interaction of structure and cause explosion line, in existing paperboard product, the number of layers of paperboard increases and will cause the increase of explosion line rate, because when stacking or bending processing of paperboard, the uneven stress in paperboard will pull the corresponding structure, and the internal structure of paperboard is directly fixed by adhesive, when the force received at the joint point reaches the limit, it will be separated and cracked, and when the weather is dry, the water loss in paperboard will cause the structure in paperboard to crack, and it is more prone to produce explosion line when bending processing, explosion-proof line part 4 includes outer contact layer 401, outer contact layer 401 and inner surface layer 1 are also directly contacted with external environment, for directly providing the folding resistance of the whole paperboard product, preferably using kraft paper or coated paper as use material, outer contact layer 401 is equipped with lower expansion groove 402 recessed towards inner surface layer 1, lower expansion groove 402 is used to store a certain amount of expandable outer contact layer 401, when necessary, i.e. when paperboard product is subjected to enough force to produce bending, part of outer contact layer 401 of lower expansion groove 402 can deform under stress, support member 5 is arranged between outer contact layer 401 and first inner liner 3, first inner liner 3 is equipped with second wave layer 6, second wave layer 6 and support member 5 are equipped with second inner liner 7, the corrugation type of first wave layer 2 and second wave layer 6 is UV-shaped, the structure of second wave layer 6 and second inner liner 7 is used to increase the number of layers of paperboard structure, by superimposing the number of layers, the carrying capacity and impact resistance of paperboard are improved, when used with other articles, for example, when packaging articles need better shock absorption and protection, increasing the number of layers can better meet the use demand, the commonly used number of layers of existing paperboard is three, five and seven, but the corresponding multi-layer structure is more difficult to bend, which can enhance the carrying capacity of paperboard product, support member 5 includes distal end layer 501 bonded with outer contact layer 401, distal end layer 501 covers one side of outer contact layer 401 and mainly acts as the basis of fixed separation layer 502, distal end layer 501 is equipped with separation layer 502 perpendicular to outer contact layer 401,The partition layer 502 is used to provide support force while reducing the use of materials. One side of the partition layer 502 is connected with the inner ring layer 503, which is used to better bear force so that the force transmitted by the partition layer 502 is dispersed on the inner ring layer 503. The inner ring layer 503 extends outward along the second inner liner layer 7. The part of the outer contact layer 401 corresponding to the lower expansion groove 402 is bonded with the inner ring layer 503, that is, the part of the inner ring layer 503 extending outward is fixed with the outer contact layer 401. In this way, the load-bearing strength of the outer contact layer 401 can be further improved by the support member 5. Since the partition layer 502 and the distal end layer 501 are fixed, and the contact area between the partition layer 502, the distal end layer 501 and the inner ring layer 503 is small, the partition layer 502 can be extended and fixed on the corresponding distal end layer 501 and inner ring layer 503 when the support member 5 is manufactured. In the implementation of the present application, the outer contact layer 401 first receives external pressure and then transmits the pressure to the internal support member 5. The partition layer 502 in the support member 5 can play a major supporting role, and when bending, it can bend at the relatively weak lower expansion groove 402. At this time, the part of the outer contact layer 401 at the lower expansion groove 402 is unfolded, and the inner surface layer 1, the first inner liner layer 3 and the second inner liner layer 7 are bent. The first wave layer 2 and the second wave layer 6 can deform enough due to their structure.

[0031] During the use of the paperboard, for example, as the outer packaging of an article, it is necessary to print patterns on the paperboard, and the flat surface 403 can be used as a printing surface to display patterns. Moreover, the flat surface 403 can expand the area of the side surface, making the appearance flat and easy to stack. The outer contact layer 401 is provided with a flat surface 403 parallel to the first inner liner layer 3. The flat surface 403 is located on one side of the lower expansion groove 402. The transition arc surface 404 is provided between the flat surface 403 and the lower expansion groove 402. In this way, the external structure style of the paperboard can be increased, different appearance requirements can be flexibly adapted to, and the structure can be adjusted according to some conditions.

[0032] Example 3

[0033] As shown in Figure 5 , the present embodiment provides an implementation based on example 2. The lower expansion groove 402 is provided in two directions to facilitate bending processing in different directions. The position of the lower expansion groove 402 on the outer contact layer 401 is several columns and rows in two directions. The flat surface 403 is provided on the outer contact layer 401 between the lower expansion grooves 402. The transition arc surface 404 is provided between the flat surface 403 and the lower expansion groove 402. In this way, the paperboard bent in different directions can be better adapted to.

[0034] The partition layer 502 next to the outer contact layer 401 is set in relation to the lower groove 402. The two types of lower grooves 402 are set perpendicular to each other. The partition layer 502, which is perpendicular to the outer contact layer 401, can further enhance the support force and structural strength of the corresponding flat part, thus providing better support.

[0035] Example 4

[0036] like Figure 6 As shown, this embodiment further enhances the flexibility of bending processing based on embodiment 3. The bottom of the lower groove 402 is provided with an expansion surface 405, which is parallel to the inner layer 1. The bottom of the outer contact layer 401 is only coated with adhesive at the lower edge corresponding to the lower groove 402. This can expand the range involved when the cardboard is bent and avoid the corresponding cardboard part having too many layers, which would induce bursting.

[0037] Example 5

[0038] like Figure 7 and Figure 8 As shown, this embodiment proposes another implementation of the support member 5 based on embodiment 4, so that the connecting trajectory of the lower groove 402 is further filled and wrapped around the periphery of the support member 5, which makes the inner ring layer 503 form a circular shell below the corresponding flat surface, and the partition layer 502 surrounds the outer wall of the circular shell.

[0039] This invention provides better external load-bearing capacity and cushioning effect during use. When the cardboard itself needs to be bent, it can still be bent relatively smoothly. Specifically, the bending position is restricted within the corresponding lower groove 402. During bending, the outer contact layer 401 can move well with the bending, avoiding the pulling between the layers. This allows for better load-bearing capacity, support strength, and explosion-proof performance with fewer bending layers.

[0040] The foregoing has shown and described the basic principles, main features and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of this invention. Various changes and modifications can be made to this invention without departing from the spirit and scope of this invention. All such changes and modifications fall within the scope of this invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An adhesive-type environmentally friendly explosion-proof cardboard, comprising an inner surface layer (1) in contact with the packaged goods, wherein a first corrugated layer (2) is fixed on the inner surface layer (1), and a first inner lining layer (3) is provided on the first corrugated layer (2), characterized in that: The first inner lining layer (3) is provided with an explosion-proof line section (4), the explosion-proof line section (4) includes an outer contact layer (401), the outer contact layer (401) is provided with a downward groove (402) recessed towards the inner surface layer (1), and a support member (5) is provided between the outer contact layer (401) and the first inner lining layer (3). A second wave layer (6) is provided on the first inner lining layer (3), and a second inner lining layer (7) is provided between the second wave layer (6) and the support member (5). The ribs of the first wave layer (2) and the second wave layer (6) are both UV-shaped. The support member (5) includes a distal layer (501) bonded to the outer contact layer (401). The distal layer (501) has a partition (502) perpendicular to the outer contact layer (401). An inner ring layer (503) is connected to one side of the partition layer (502). The inner ring layer (503) extends outward along the second inner lining layer (7). The portion of the outer contact layer (401) corresponding to the lower groove (402) is bonded to the inner ring layer (503). The outer contact layer (401) is provided with a flat surface (403) parallel to the first inner lining layer (3). The flat surface (403) is located on one side of the lower groove (402). A transition arc surface (404) is provided between the flat surface (403) and the lower groove (402). The spacers (502) and the space between the inner ring layer (503) and the second inner liner (7) are filled with shock-absorbing filler (8), which is a rolled core paper layer. The bottom of the lower groove (402) is provided with an expansion surface (405), which is parallel to the inner layer (1). The bottom of the outer contact layer (401) is coated with adhesive only at the lower edge corresponding to the lower groove (402).

2. The adhesive-type environmentally friendly explosion-proof paperboard according to claim 1, characterized in that: The lower groove (402) is located in several columns and rows in two directions on the outer contact layer (401). A flat surface (403) is provided on the outer contact layer (401) between the lower grooves (402). A transition arc surface (404) is provided between the flat surface (403) and the lower groove (402). The partition (502) on the outer contact layer (401) is provided corresponding to the lower groove (402), and the two lower grooves (402) are perpendicular to each other.

Images