High-strength moisture-proof corrugated paper, processing method and moisture-proof carton

Abstract

The present invention relates to the technical field of corrugated paper, and in particular to high-strength moisture-proof corrugated paper, a processing method and a moisture-proof carton. The corrugated paper is composed of a corrugated paper core and a surface paper layer and a lining paper layer on both sides. The corrugated paper core is filled with a water-swelling material. The structural strength of the corrugated paper is enhanced by the corrugated paper core, and the water-swelling material is used to achieve effective moisture-proofing of the corrugated paper structure. The first corrugated paper layer and the second corrugated paper layer are both designed to be wavy and relatively staggered and superimposed, which further improves the structural stability of the corrugated paper while enhancing the compressive strength. The corrugated paper core is composed of a first corrugated paper layer and a second corrugated paper layer superimposed, and a filling cavity is formed between the two to accommodate the water-swelling material, which strengthens the structural strength of the corrugated paper and provides enough space to fill the moisture-proof material. The processing steps of the corrugated paper include the formation of the corrugated paper layer, bonding, filling the water-swelling material, gluing, bonding the surface paper layer and the lining paper layer, and cutting, etc., to achieve efficient production of the corrugated paper.

Description

Technical Field

[0001] The invention relates to the technical field of corrugated paper, in particular to high-strength moisture-proof corrugated paper, a processing method and a moisture-proof paper box. Background Art

[0002] Corrugated cardboard is made into cartons through die-cutting, creasing, nailing or gluing. Corrugated cardboard is a multi-layer adhesive body, which consists of at least one corrugated paper core layer and one cardboard layer. Corrugated cardboard has high mechanical strength. Cartons made of corrugated cardboard can withstand external collisions and falls during transportation.

[0003] In the structure of corrugated cardboard, multi-layer corrugated paper core can improve the compressive strength of corrugated cardboard. The traditional multi-layer corrugated paper core structure will increase the thickness or number of layers of corrugated paper, which is not only not conducive to the processing of carton, but also easy to be flattened and lose most of its protective properties when under great pressure. Corrugated cardboard is mainly made of fiber base paper, which is easy to be affected by moisture, and the supporting performance of the corrugated paper core will be reduced after being affected by moisture. Summary of the invention

[0004] The invention provides a high-strength moisture-proof corrugated paper, a processing method and a moisture-proof carton, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A high-strength moisture-proof corrugated paper, comprising a corrugated paper core and a surface paper layer and a lining paper layer respectively arranged on both sides thereof, wherein the corrugated paper core is filled with a water-absorbing and swelling material;

[0007] The corrugated paper core comprises a first corrugated paper layer and a second corrugated paper layer which are stacked together. The first corrugated paper layer and the second corrugated paper layer are respectively bonded to the surface paper layer and the inner paper layer, and a filling cavity is formed therebetween. The water-swellable material is arranged in the filling cavity.

[0008] Furthermore, the first corrugated paper layer and the second corrugated paper layer are both arranged in a wave shape, and the two have the same structure;

[0009] The first corrugated paper layer includes first wave crests and first wave valleys that are alternately connected, and the second corrugated paper layer includes second wave crests and second wave valleys that are alternately connected.

[0010] Furthermore, the top of the first wave crest and the bottom of the first wave valley are both rounded, and the radius of the first wave crest is greater than the radius of the second wave crest, and the distance between two adjacent first wave crests is the same as the distance between two adjacent first wave valleys.

[0011] Furthermore, the first corrugated paper layer and the second corrugated paper layer are stacked in a relatively staggered manner.

[0012] Furthermore, the first corrugated paper layer and the second corrugated paper layer are bonded to the surface paper layer and the inner paper layer through the first wave crest and the second wave crest respectively;

[0013] The first wave valley and the second wave valley are bonded to the inner side of the second wave peak and the inner side of the first wave peak respectively.

[0014] Furthermore, any of the first wave crests cooperates with the corresponding second wave trough to form two symmetrically arranged filling cavities;

[0015] Any of the second wave crests cooperates with the correspondingly arranged first wave trough to form two symmetrically arranged filling cavities.

[0016] Furthermore, a waterproof coating is coated on the outer surfaces of the surface paper layer and the inner paper layer;

[0017] Glue seals are provided at both ends of the filling cavity.

[0018] A method for processing high-strength moisture-proof corrugated paper, applicable to the above-mentioned high-strength moisture-proof corrugated paper, comprises the following steps:

[0019] The first corrugated paper layer and the second corrugated paper layer are formed by rolling respectively by two groups of first pressing roller assemblies, and the first valley bottom of the first corrugated paper layer and the second valley bottom of the second corrugated paper layer are arranged in a relatively staggered manner;

[0020] The first valley bottom and the second valley bottom are respectively coated with glue by two groups of first rubber rollers, so that the first corrugated paper layer and the second corrugated paper layer are bonded to each other after passing through the second pressing roller assembly to form a corrugated paper core;

[0021] One end of the filling cavity on the corrugated paper core is sealed by a first sealing component, and then a water-absorbing and swelling material is poured into the filling cavity from the other end of the filling cavity;

[0022] The two sides of the corrugated paper core are coated with glue by two sets of second rubber rollers respectively, so that the corrugated paper core and the surface paper layer and the inner paper layer unwound synchronously on both sides of the corrugated paper core pass through the third pressing roller assembly and then adhere to each other;

[0023] The bonded paper layer structure is cut into a paperboard structure of a size suitable for carton processing by a knife roller assembly, and then the other end of the filling cavity is sealed by a second sealing assembly to obtain a corrugated paperboard.

[0024] Furthermore, during the filling process of the water-swellable material, the corrugated paper core is synchronously conveyed by the first conveyor belt and the second conveyor belt arranged perpendicular to each other, and the water-swellable material is filled into the filling cavity from the unsealed end of the filling cavity of the corrugated paper core by the spreading device;

[0025] The corrugated paper core is laid on the first conveyor belt, and the sealed side of the filling cavity of the corrugated paper core is synchronously supported and conveyed by the second conveyor belt, and the spreading device is located on the side of the first conveyor belt away from the second conveyor belt and is arranged along the length direction of the first conveyor belt;

[0026] The first conveyor belt is tilted toward the side where the second conveyor belt is arranged, and the length of the second conveyor belt at the end in the conveying direction is shorter than that of the first conveyor belt at the end in the conveying direction.

[0027] A moisture-proof carton adopts the above-mentioned high-strength moisture-proof corrugated paper and uses the above-mentioned high-strength moisture-proof corrugated paper processing method to die-cut and crease the corrugated paper while passing through a knife roller assembly, and then is sealed by a second sealing assembly and then glued to form a carton.

[0028] The beneficial effects of the present invention are:

[0029] In the present invention, the corrugated paper is composed of a corrugated paper core and a surface paper layer and a lining paper layer on both sides. The corrugated paper core is filled with a water-swelling material. The structural strength of the entire corrugated paper is enhanced by the corrugated paper core arranged between the surface paper layer and the lining paper layer. The water-swelling material is used to achieve effective moisture-proofing of the corrugated paper structure. The corrugated paper core is composed of a first corrugated paper layer and a second corrugated paper layer stacked together. A filling cavity is formed between the two to accommodate the water-swelling material, thereby strengthening the structural strength of the corrugated paper and providing sufficient space to fill the moisture-proof material. The processing steps of the corrugated paper include forming a corrugated paper layer, bonding, filling with water-swelling material, gluing, bonding the surface paper layer and the lining paper layer, and cutting, etc., thereby achieving efficient production of the corrugated paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a schematic diagram of the structure of the high-strength moisture-proof corrugated paper of the present invention;

[0032] Figure 2 It is a structural schematic diagram of the corrugated paper core in the present invention;

[0033] Figure 3 for Figure 2 A magnified view of the local structure at point A in the middle;

[0034] Figure 4 It is a schematic diagram of the structure of the corrugated paper in the present invention after the corrugated paper core expands after being damp;

[0035] Figure 5 This is a schematic diagram of processing high-strength moisture-proof corrugated paper in the present invention;

[0036] Figure 6 This is a schematic diagram of the corrugated paper core can desiccant in the present invention;

[0037] Figure 7 It is a schematic diagram of the corrugated paperboard ready for box gluing after die-cutting and creasing in the present invention.

[0038] Figure numerals: 1, corrugated paper core; 11, first corrugated paper layer; 111, first wave crest; 112, first wave trough; 12, second corrugated paper layer; 121, second wave crest; 122, second wave trough; 13, filling cavity; 2, surface paper layer; 3, lining paper layer; 4, water-swellable material; 5, waterproof coating; 61, first pressure roller assembly; 62, first rubber roller; 63, second pressure roller assembly; 64, first glue sealing assembly; 65, second rubber roller; 66, third pressure roller assembly; 67, knife roller assembly; 68, second glue sealing assembly; 71, first conveyor belt; 72, second conveyor belt; 73, material spreading device. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0040] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0042] like Figures 1 to 4The high-strength moisture-proof corrugated paper shown includes a corrugated paper core 1 and a face paper layer 2 and a lining paper layer 3 respectively arranged on both sides thereof, and the corrugated paper core 1 is filled with a water-absorbing and swelling material 4; the corrugated paper core 1 includes a first corrugated paper layer 11 and a second corrugated paper layer 12 which are stacked, and the first corrugated paper layer 11 and the second corrugated paper layer 12 are respectively bonded to the face paper layer 2 and the lining paper layer 3, and a filling cavity 13 is formed therebetween, and the water-absorbing and swelling material 4 is arranged in the filling cavity 13.

[0043] In the present invention, the corrugated paper is composed of a corrugated paper core 1 and a surface paper layer 2 and a lining paper layer 3 on both sides. The corrugated paper core 1 is filled with a water-swelling material 4. The structural strength of the entire corrugated paper is enhanced by the corrugated paper core 1 arranged between the surface paper layer 2 and the lining paper layer 3, and the water-swelling material 4 is used to effectively prevent moisture from entering the corrugated paper structure. The corrugated paper core 1 is composed of a first corrugated paper layer 11 and a second corrugated paper layer 12 stacked together, and a filling cavity 13 is formed between the two to accommodate the water-swelling material 4, thereby strengthening the structural strength of the corrugated paper and providing sufficient space for filling the moisture-proof material.

[0044] As a preferred embodiment of the present invention, the first corrugated paper layer 11 and the second corrugated paper layer 12 are both arranged in a wave shape and have the same structure; the first corrugated paper layer 11 includes alternately connected first wave crests 111 and first wave troughs 112, and the second corrugated paper layer 12 includes alternately connected second wave crests 121 and second wave troughs 122.

[0045] The first corrugated paper layer 11 and the second corrugated paper layer 12 are both designed to be wavy, which enhances the compressive strength and cushioning performance of the corrugated paper. Moreover, the first corrugated paper layer 11 and the second corrugated paper layer 12 are relatively staggered and stacked, which enhances the compressive strength and further improves the structural stability of the corrugated paper.

[0046] See Figure 1 As shown, the top of the first wave crest 111 and the bottom of the first wave valley 112 are both rounded, and the radius of the first wave crest 111 is greater than the radius of the second wave crest 121 , and the distance between two adjacent first wave crests 111 is the same as the distance between two adjacent first wave valleys 112 .

[0047] Furthermore, the first corrugated paper layer 11 and the second corrugated paper layer 12 are relatively staggered and superimposed. The first corrugated paper layer 11 and the second corrugated paper layer 12 are respectively bonded to the surface paper layer 2 and the inner paper layer 3 through the first wave crest 111 and the second wave crest 121; the first wave valley 112 and the second wave valley 122 are respectively bonded to the inner side of the second wave crest 121 and the inner side of the first wave crest 111. Any first wave crest 111 cooperates with the corresponding second wave valley 122 to form two symmetrically arranged filling cavities 13; any second wave crest 121 cooperates with the corresponding first wave valley 112 to form two symmetrically arranged filling cavities 13.

[0048] The first corrugated paper layer 11 and the second corrugated paper layer 12 have the same structure, the top rounded corner of the first wave crest 111 is larger than the bottom rounded corner of the first wave valley 112, and the structure of the second corrugated paper layer 12 is the same as above; therefore, when the first corrugated paper layer 11 and the second corrugated paper layer 12 are relatively staggered and superimposed, the first wave crest 111 can cover the second valley bottom, and similarly, the second wave crest 121 can also cover the first valley bottom.

[0049] After the first wave valley 112 and the second wave valley 122 are bonded to the inner side of the second wave peak 121 and the inner side of the first wave peak 111 respectively, the inner side of the first wave peak 111 cooperates with the outer side of the second wave valley 122, and the inner side of the second wave peak 121 cooperates with the outer side of the first wave valley 112 to form a stable filling cavity 13 structure, and the filling cavity 13 is designed to be continuous between the surface paper layer 2 and the inner paper layer 3, ensuring the stability of the compressive strength of the overall corrugated paper structure.

[0050] like Figure 4 As shown, in the structure of the corrugated paper core 1, the second valley bottom is bonded to the middle position of the first wave crest 111, and the first valley bottom is bonded to the middle position of the second wave crest 121, so that the two adjacent filling cavities 13 are arranged symmetrically. When the water-absorbing and expanding material 4 inside the filling cavity 13 is damp or expands after absorbing water, the volume of the water-absorbing and expanding material increases and presses the first wave crest 111 or the second wave crest 121 outwardly, and at the same time presses the first valley bottom or the second valley bottom inwardly, so that the contact area between the first wave crest 111 and the second wave crest 121 and the surface paper layer 2 and the inner paper layer 3 is increased, and the fillet radius of the first valley bottom and the second valley bottom is reduced.

[0051] In summary, the water-swellable material 4 in the filling cavity 13 of the corrugated paper core 1 is damp or absorbs water to form a stable quadrilateral structure; the contact areas of the first wave peak 111 and the second wave peak 121 with the surface paper layer 2 and the inner paper layer 3 are increased respectively, and at the same time, the supporting force is increased by the triangular structure formed by the first valley bottom and the second valley bottom, and the expanded water-swellable material 4 further provides supporting force, thereby improving the strength of the corrugated paper that has been damp.

[0052] Furthermore, the outer surfaces of the face paper layer 2 and the inner paper layer 3 are coated with a waterproof coating 5, and glue seals are provided at both ends of the filling cavity 13. The waterproof coating 5 coated on the surface improves the moisture-proof performance of the corrugated paper. At the same time, glue seals are provided at both ends of the filling cavity 13 to prevent the water-absorbing and swelling material 4 from leaking.

[0053] like Figures 5 to 7 As shown, the present invention further discloses a processing method of high-strength moisture-proof corrugated paper, which is applicable to the above-mentioned high-strength moisture-proof corrugated paper, comprising the following steps:

[0054] The first corrugated paper layer 11 and the second corrugated paper layer 12 are formed by rolling respectively by two groups of first roller assemblies 61, and the first valley bottom of the first corrugated paper layer 11 and the second valley bottom of the second corrugated paper layer 12 are relatively staggered. The first corrugated paper layer 11 and the second corrugated paper layer 12 have the same structure, so the first corrugated paper layer 11 and the second corrugated paper layer 12 can be processed by two groups of first roller assemblies 61 with the same structure, and the two groups of first roller assemblies 61 are relatively arranged, and the processing progress is adjusted to ensure that the first corrugated paper layer 11 and the second corrugated paper layer 12 are relatively staggered.

[0055] Glue is applied to the outer sides of the first valley bottom and the second valley bottom respectively by two groups of first glue rollers 62, so that the first corrugated paper layer 11 and the second corrugated paper layer 12 are bonded to each other after passing through the second pressing roller assembly 63 to form a corrugated paper core 1; the first corrugated paper layer 11 and the second corrugated paper layer 12 that are relatively staggered are overlapped and bonded to form a filling cavity 13 between the two.

[0056] One end of the filling cavity 13 on the corrugated paper core 1 is sealed by the first glue sealing component 64, and then the water-absorbing and swelling material 4 is filled into the filling cavity 13 from the other end of the filling cavity 13; by adjusting the gluing frequency of the first glue sealing component 64, the end of the space formed between the first valley bottom and the surface paper layer 2 and the end of the space formed between the second valley bottom and the inner paper layer 3 are avoided from being glue-sealed, so as to achieve accurate glue sealing of the end of the filling cavity 13.

[0057] Glue is applied to both sides of the corrugated paper core 1 by two sets of second glue rollers 65 respectively, so that the corrugated paper core 1 and the surface paper layer 2 and the inner paper layer 3 unwound synchronously on both sides thereof are bonded to each other after passing through the third pressing roller assembly 66 to form a corrugated paper layer structure; the bonded paper layer structure is cut into a cardboard structure of a size suitable for carton processing by the knife roller assembly 67, and then the other end of the filling cavity 13 is sealed by the second glue sealing assembly 68 to obtain a corrugated cardboard.

[0058] Furthermore, during the filling process of the water-swellable material 4, the corrugated paper core 1 is synchronously conveyed by the first conveyor belt 71 and the second conveyor belt 72 which are arranged perpendicular to each other, and the water-swellable material 4 is filled into the filling cavity 13 from the unsealed end of the filling cavity 13 of the corrugated paper core 1 by the spreading device 73;

[0059] The corrugated paper core 1 is laid on the first conveyor belt 71, and the second conveyor belt 72 is used to synchronously support and convey the sealed side of the filling cavity 13 of the corrugated paper core 1. The spreading device 73 is located on the side of the first conveyor belt 71 away from the second conveyor belt 72 and is arranged along the length direction of the first conveyor belt 71.

[0060] The first conveyor belt 71 is inclined toward the side where the second conveyor belt 72 is disposed, and the length of the second conveyor belt 72 at the end of the conveying direction is shorter than that of the first conveyor belt 71. After the corrugated paper passes through the end of the conveying direction of the second conveyor belt 72, it is convenient to guide the water-swellable material 4 dumped in the space between the first valley bottom and the surface paper layer 2 and the space between the second valley bottom and the inner paper layer 3 out.

[0061] The processing steps of corrugated paper include forming a corrugated paper layer, gluing, filling a water-swellable material 4, gluing, gluing a face paper layer 2 and a back paper layer 3, and cutting, etc., so as to realize the efficient production of corrugated paper. After the corrugated paper layer structure is cut, the other side of the filling cavity 13 is glue-sealed to form a corrugated paperboard suitable for gluing or nailing boxes.

[0062] The present invention further discloses a moisture-proof paper box, which adopts the above-mentioned high-strength moisture-proof corrugated paper, and uses the above-mentioned high-strength moisture-proof corrugated paper processing method to die-cut and crimp the corrugated paper while passing through the knife roller assembly 67, and then obtains the corrugated paperboard after being sealed by the second sealing assembly 68, such as Figure 7 As shown, it is convenient for subsequent gluing of boxes to make cartons.

[0063] Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A high-strength moisture-proof corrugated paper, characterized in that: It comprises a corrugated paper core and a surface paper layer and a lining paper layer respectively arranged on both sides thereof, wherein the corrugated paper core is filled with water-absorbing and swelling material; The corrugated paper core comprises a first corrugated paper layer and a second corrugated paper layer which are stacked, the first corrugated paper layer and the second corrugated paper layer are respectively bonded to the surface paper layer and the inner paper layer, and a filling cavity is formed between the two, and the water-swellable material is arranged in the filling cavity; The first corrugated paper layer and the second corrugated paper layer are both arranged in a wave shape and have the same structure; The first corrugated paper layer comprises first wave crests and first wave valleys connected alternately, and the second corrugated paper layer comprises second wave crests and second wave valleys connected alternately; The top of the first wave crest and the bottom of the first wave valley are both rounded, and the radius of the first wave crest is greater than the radius of the second wave crest, and the distance between two adjacent first wave crests is the same as the distance between two adjacent first wave valleys; The first corrugated paper layer and the second corrugated paper layer are relatively staggered and stacked; The first corrugated paper layer and the second corrugated paper layer are bonded to the surface paper layer and the inner paper layer through the first wave crest and the second wave crest respectively; The first wave valley and the second wave valley are bonded to the inner side of the second wave peak and the inner side of the first wave peak respectively; The second valley bottom is bonded to the middle position of the first wave crest, and the first valley bottom is bonded to the middle position of the second wave crest; Any of the first wave crests cooperates with the corresponding second wave trough to form two symmetrically arranged filling cavities; Any of the second wave crests cooperates with the corresponding first wave trough to form two symmetrically arranged filling cavities; The water-swellable material increases in volume after absorbing water and swells, squeezing the first wave crest or the second wave crest outwardly, and squeezing the first valley bottom or the second valley bottom inwardly, so that the filling cavity forms a stable quadrilateral structure, and the first valley bottom and the second valley bottom form a triangular structure.

2. The high-strength moisture-proof corrugated paper according to claim 1, characterized in that: The outer surfaces of the surface paper layer and the inner paper layer are coated with a waterproof coating; Glue seals are provided at both ends of the filling cavity.

3. A method for processing high-strength moisture-proof corrugated paper, characterized in that: The high-strength moisture-proof corrugated paper according to any one of claims 1 or 2 comprises the following steps: The first corrugated paper layer and the second corrugated paper layer are formed by rolling respectively by two groups of first pressing roller assemblies, and the first valley bottom of the first corrugated paper layer and the second valley bottom of the second corrugated paper layer are arranged in a relatively staggered manner; The first valley bottom and the second valley bottom are respectively coated with glue by two groups of first rubber rollers, so that the first corrugated paper layer and the second corrugated paper layer are bonded to each other after passing through the second pressing roller assembly to form a corrugated paper core; One end of the filling cavity on the corrugated paper core is sealed by a first sealing component, and then a water-absorbing and swelling material is poured into the filling cavity from the other end of the filling cavity; The two sides of the corrugated paper core are coated with glue by two sets of second rubber rollers respectively, so that the corrugated paper core and the surface paper layer and the inner paper layer unwound synchronously on both sides of the corrugated paper core pass through the third pressing roller assembly and then adhere to each other; The bonded paper layer structure is cut into a paperboard structure of a size suitable for carton processing by a knife roller assembly, and then the other end of the filling cavity is sealed by a second sealing assembly to obtain a corrugated paperboard.

4. The method for processing high-strength moisture-proof corrugated paper according to claim 3, characterized in that: During the filling process of the water-swellable material, the corrugated paper core is synchronously conveyed by a first conveyor belt and a second conveyor belt arranged perpendicular to each other, and the water-swellable material is simultaneously filled into the filling cavity from an unsealed end of the filling cavity of the corrugated paper core by a spreading device; The corrugated paper core is laid on the first conveyor belt, and the sealed side of the filling cavity of the corrugated paper core is synchronously supported and conveyed by the second conveyor belt, and the spreading device is located on the side of the first conveyor belt away from the second conveyor belt and is arranged along the length direction of the first conveyor belt; The first conveyor belt is tilted toward the side where the second conveyor belt is arranged, and the length of the second conveyor belt at the end in the conveying direction is shorter than that of the first conveyor belt at the end in the conveying direction.

5. A moisture-proof carton, characterized in that: The high-strength moisture-proof corrugated paper described in any one of claims 1 or 2 above is used, and the processing method of the high-strength moisture-proof corrugated paper described in any one of claims 3 and 4 above is adopted, the corrugated paper is die-cut and creased while passing through a knife roller assembly, and then sealed by a second sealing assembly and glued to form a carton.

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