CN110861356B - Corrugated board and corrugated carton production process - Google Patents

Corrugated board and corrugated carton production process Download PDF

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Publication number
CN110861356B
CN110861356B CN201911296808.8A CN201911296808A CN110861356B CN 110861356 B CN110861356 B CN 110861356B CN 201911296808 A CN201911296808 A CN 201911296808A CN 110861356 B CN110861356 B CN 110861356B
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China
Prior art keywords
corrugated
paper
core
board
note
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CN201911296808.8A
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CN110861356A (en
Inventor
卞华
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Shanghai Dinglong Paper Co ltd
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Shanghai Dinglong Paper Co ltd
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Publication of CN110861356A publication Critical patent/CN110861356A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B50/20—Cutting sheets or blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/60—Uniting opposed surfaces or edges; Taping
    • B31B50/68—Uniting opposed surfaces or edges; Taping by stitching, stapling or riveting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B29/005—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to another layer of paper or cardboard layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/08—Corrugated paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • D21H27/40—Multi-ply at least one of the sheets being non-planar, e.g. crêped

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention relates to a corrugated board and a production process of a corrugated carton, wherein the corrugated board comprises a corrugated paper core and a panel, the corrugated paper core is fixedly connected with the panel, the corrugated paper core is provided with a mounting groove and an accommodating groove, the mounting groove and the accommodating groove are arranged on the corrugated paper core at intervals, an elastic rod is fixed in the mounting groove, and a damping paper slip is fixed in the accommodating groove. The elasticity of elastic rod makes corrugated paper core can kick-back rapidly, and corrugated container board can play the guard action to the object once more, and simultaneously through the shock attenuation effect of shock attenuation note, has further improved corrugated container board's buffering compressive capacity.

Description

Corrugated board and corrugated carton production process
Technical Field
The invention relates to the technical field of corrugated cases, in particular to a corrugated board and a production process of the corrugated case.
Background
The corrugated board is a multi-layer adhesive body, which is generally composed of a layer of wavy corrugated paper core and paper panels on two sides of the corrugated paper core, is mainly used for manufacturing packing materials such as paper boxes, the sandwich of the paper boxes and the like, and has wide application range and large demand.
Corrugated board mainly is when receiving the striking through the flute wave that forms on the corrugated paper, and the flute wave energy plays certain buffering efficiency to reach certain crashproof nature. The existing corrugated board cannot be quickly rebounded after being stressed and deformed and cannot timely protect objects again, so that the corrugated board has poor buffering and pressure-resistant capacity.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a corrugated board and a corrugated case production process, which can improve the buffering and pressure resistance of the corrugated board.
The above object of the present invention is achieved by the following technical solutions:
the corrugated paper board comprises a corrugated paper core and a panel, wherein the corrugated paper core is fixedly connected with the panel, a mounting groove and a containing groove are formed in the corrugated paper core, the mounting groove and the containing groove are arranged on the corrugated paper core at intervals, an elastic rod is fixed in the mounting groove, and a damping paper slip is fixed in the containing groove.
Through adopting above-mentioned technical scheme, corrugated container board is when the atress, and corrugated paper core is by extrusion deformation, and the elastic rod is by extrusion deformation in the mounting groove. When the atress is cancelled or is reduced, the elasticity of elastic rod makes corrugated paper core can kick-back rapidly, and corrugated container board can play the guard action to the object once more, and simultaneously through the shock attenuation effect of shock attenuation note, further improved corrugated container board's buffering compressive capacity.
The present invention in a preferred example may be further configured to: the corrugated paper core comprises a first core board and a second core board, wherein the first core board and the second core board are symmetrically arranged and fixedly connected, the first core board and the second core board are formed by a plurality of continuous isosceles trapezoid corrugated paper sheets, the concave parts of the corrugated paper sheets form accommodating grooves, and opposite corrugated paper sheets are surrounded to form an installation groove which is cellular.
By adopting the technical scheme, the corrugated paper sheet is in an isosceles trapezoid shape, the contact area of the first core board and the second core board is large, and the first core board and the second core board are easy to bond and fix.
The present invention in a preferred example may be further configured to: the elastic rod comprises a connecting paperboard and a rubber strip, the connecting paperboard is fixedly connected with corrugated paper sheets, the connecting paperboard is rolled into a cylinder, a groove is formed in the axis position of the connecting paperboard, and the rubber strip is filled in the groove.
Through adopting above-mentioned technical scheme, the rubber strip is lived to the connection cardboard parcel, through connection cardboard and corrugated paper piece, makes the rubber strip fix in the mounting groove. The rubber strips have good deformation recovery capability, and the corrugated paper core can be quickly rebounded through the elasticity improved by the rubber strips.
The present invention in a preferred example may be further configured to: the connecting paperboard is provided with an elastic rope, the elastic rope penetrates through the connecting paperboard and the rubber strip, and the elastic rope and the panel are arranged in parallel.
Through adopting above-mentioned technical scheme, when the corrugated paper core received the extrusion, the elastic rod was by extrusion deformation in the mounting groove, and the elastic rope is elongated, and the resilience of elasticity rope's shrink further improves the resilience of elastic rod deformation.
The present invention in a preferred example may be further configured to: the shock attenuation note includes first note, second note and arc offset plate, first note and corrugated refill fixed connection, second note and panel fixed connection, the perpendicular cross-section of arc offset plate is the U type, and the arc offset plate has two, and two arc offset plates deviate from the setting, and the arc offset plate is located between first note and the second note, arc offset plate and first note, second note fixed connection.
Through adopting above-mentioned technical scheme, the arc offset plate is fixed between first note and second note, and the arc offset plate is flexible, and when the corrugated paper core received the extrusion, the arc offset plate was extruded and is out of shape, and the elasticity of arc offset plate plays the cushioning effect, and the elastic recovery of arc offset plate also enables corrugated paper core and can kick-back rapidly simultaneously.
The present invention in a preferred example may be further configured to: the panel comprises a surface layer and a kraft layer, wherein the kraft layer is fixed on the inner side surface of the surface layer, and the kraft layer is fixedly connected with the corrugated paper core.
By adopting the technical scheme, the kraft layer is pollution-free, tough, waterproof and good in strength, and the tearing resistance of the corrugated carton can be improved.
The present invention in a preferred example may be further configured to: and a waterproof layer is arranged on the side of the surface layer deviating from the kraft paper layer.
Through adopting above-mentioned technical scheme, through the waterproof layer setting, can improve corrugated box's waterproof performance.
The invention also discloses a production process of the corrugated case, which is made of the corrugated board and comprises the following preparation steps:
the method comprises the following steps: preparing an elastic rod and a damping paper strip;
step two: preheating the panel and the corrugated paper core, adhering and fixing the elastic rod and the corrugated paper core through viscose, fixing the damping paper strips on the inner side of the panel at equal intervals, and adhering and fixing the corrugated paper core, the panel and the damping paper strips to form a corrugated board;
step three: and (5) cooling the corrugated board, and then die-cutting and binding to obtain the corrugated case.
By adopting the technical scheme, the prepared corrugated case has good buffering and pressure resistance and good waterproof performance.
In summary, the invention includes at least one of the following beneficial technical effects:
1. the elasticity of elastic rod makes corrugated paper core can kick-back rapidly, and corrugated container board can play the guard action to the object once more, and simultaneously through the shock attenuation effect of shock attenuation note, has further improved corrugated container board's buffering compressive capacity.
2. The kraft layer is pollution-free, tough, waterproof and good in strength, and can improve the tearing resistance of the corrugated carton.
3. Through the waterproof layer setting, can improve corrugated box's waterproof performance.
Drawings
FIG. 1 is a schematic structural view of a corrugated cardboard of the present invention;
fig. 2 is an enlarged schematic view of a portion a in fig. 1.
In the figure, 1, a corrugated paper core; 11. a first core board; 12. a second core board; 13. accommodating grooves; 14. mounting grooves; 15. corrugated paper sheets; 2. a panel; 21. a surface layer; 22. a kraft layer; 23. a waterproof layer; 3. an elastic rod; 31. connecting the paper boards; 32. a rubber strip; 33. an insertion block; 34. a slot; 35. a groove; 4. an elastic cord; 5. damping paper strips; 51. a first slip; 52. a second slip of paper; 53. an arc-shaped rubber plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the corrugated board disclosed by the invention comprises a corrugated paper core 1 and a face plate 2, wherein the inner sides of the corrugated paper core 1 and the face plate 2 are fixedly bonded. Corrugated paper core 1 includes first core 11 and second core 12, first core 11 and second core 12 symmetrical arrangement, first core 11 and second core 12 comprise a plurality of continuous isosceles trapezoid's corrugated paper piece 15, the last corrugated paper piece 15 of contact passes through glue bonding fixed on first core 11 and the second core 12, corrugated paper piece 15's depressed part forms holding tank 13, enclose into mounting groove 14 between the relative corrugated paper piece 15 on first core 11 and the second core 12, the vertical cross-section of mounting groove 14 is cellular, mounting groove 14 and holding tank 13 interval set up on corrugated paper core 1.
The corrugated paper sheet 15 is in an isosceles trapezoid shape, the contact area between the first core plate 11 and the second core plate 12 is large, and the first core plate 11 and the second core plate 12 are easily bonded and fixed.
Referring to fig. 1 and 2, an elastic rod 3 is adhesively fixed in the mounting groove 14, the elastic rod 3 includes a connection paper board 31 and a rubber strip 32, the connection paper board 31 is adhesively fixed to the side wall of the corrugated paper sheet 15, an insertion block 33 is integrally formed on one side of the connection paper board 31, a slot 34 is formed on the other side of the connection paper board 31, the connection paper board 31 is rolled into a cylinder, and the insertion block 33 is inserted into the slot 34. The axial position of connecting cardboard 31 has seted up recess 35, and rubber strip 32 fills in recess 35, and rubber strip 32 and connecting cardboard 31 bonding are fixed, and rubber strip 32 and panel 2 parallel arrangement.
The connecting paper board 31 wraps the rubber strip 32, and the rubber strip 32 is fixed in the mounting groove 14 through the connecting paper board 31 and the corrugated paper sheets 15. The rubber strip 32 has good deformation recovery capability, and the corrugated paper core 1 can be quickly rebounded by the elasticity improved by the rubber strip 32.
The connecting paper board 31 is provided with an elastic rope 4, the elastic rope 4 penetrates through the connecting paper board 31 and the rubber strip 32, the end part of the elastic rope 4 is exposed out of the outer side of the connecting paper board 31, the end part of the elastic rope 4 is fixedly bonded with the connecting paper board 31, and the elastic rope 4 is arranged in parallel with the panel 2. The elastic ropes 4 are provided with a plurality of elastic ropes 4 which are arranged at equal intervals along the length direction of the rubber strip 32.
When corrugated paper core 1 receives the extrusion, elastic rod 3 is by extrusion deformation in mounting groove 14, and elastic rope 4 is elongated, and the resilience of the shrink of elastic rope 4 further improves the resilience of elastic rod 3 deformation.
The panel 2 comprises a surface layer 21 and a kraft layer 22, the kraft layer 22 is adhered and fixed on the inner side surface of the surface layer 21, the kraft layer 22 is adhered and fixed with the corrugated paper sheet 15, and the thickness of the kraft layer 22 is 0.5 mm-2 mm. The waterproof layer 23 is fixedly bonded to the side surface of the surface layer 21, which is far away from the kraft paper layer 22, the waterproof layer 23 is made of polytetrafluoroethylene material, and the thickness of the waterproof layer 23 is 0.3 mm-1 mm.
The surface paper layer has no pollution, toughness, water resistance and good strength, and can improve the tearing resistance of the corrugated case. By the provision of the waterproof layer 23, the waterproof performance of the corrugated box can be improved.
The position that kraft paper layer 22 corresponds holding tank 13 bonds and is fixed with shock attenuation note 5, shock attenuation note 5 includes first note 51, second note 52 and arc offset plate 53, first note 51, second note 52 and kraft paper layer 22 parallel arrangement, first note 51, the width of second note 52 is the same with the last end of isosceles trapezoid corrugated paper piece 15, first note 51 and corrugated paper piece 15 bond fixedly, second note 52 and kraft paper layer 22 bond fixedly.
The vertical cross-section of arc offset plate 53 is the U type, and arc offset plate 53 has elasticity, and arc offset plate 53 has two, and two arc offset plates 53's opening deviates from the setting mutually, leaves the space between two arc offset plates 53. The arc-shaped rubber plate 53 is positioned between the first paper slip 51 and the second paper slip 52, and two sides of the arc-shaped rubber plate 53 are respectively adhered and fixed with the first paper slip 51 and the second paper slip 52.
When the corrugated paper core 1 is squeezed, the arc-shaped rubber plate 53 is squeezed and deformed, and the elastic force of the arc-shaped rubber plate 53 plays a role in shock absorption. When not pressed by force, the elasticity of the arc-shaped rubber plate 53 enables the corrugated paper core 1 to rapidly rebound to the original shape.
The implementation principle of the embodiment is as follows: when the corrugated board is stressed, the corrugated paper core 1 is extruded and deformed, and the elastic rod 3 is extruded and deformed in the mounting groove 14. The elasticity of elastic rod 3 makes corrugated paper core 1 can kick-back rapidly, and corrugated container board can play the guard action to the object once more, and simultaneously through the shock attenuation effect of shock attenuation note 5, further improved corrugated container board's buffering compressive capacity.
A production process of corrugated cartons is made of the corrugated paperboard and comprises the following preparation steps:
the method comprises the following steps: glue is coated on the circumferential surface of the rubber strip 32, the connecting paperboard 31 wraps the outer side of the rubber strip 32, the connecting paperboard 31 is fixedly bonded with the rubber strip 32, through holes are formed in the connecting paperboard 31 and the rubber strip 32 at intervals, an elastic rope 4 penetrates through each through hole, the end part of each elastic rope 4 is tied into a knot, the end part of each elastic rope 4 is fixedly bonded with the outer side of the connecting paperboard 31, and the preparation of the elastic rod 3 is completed.
Two arc-shaped rubber plates 53 are bonded on the first paper slip 51, the two arc-shaped rubber plates 53 are symmetrical, a gap is reserved between the two arc-shaped rubber plates 53, then the second paper slip 52 is bonded and fixed on the opposite side of the arc-shaped rubber plates 53, the second paper slip 52 is parallel to the first paper slip 51, and the preparation of the damping paper slip 5 is completed.
Step two: preheat kraft layer 22, first core board 11 and second core board 12, bond elasticity stick 3 at first core board 11, and first core board 11 and second core board 12 bond fixedly, and shock attenuation note 5 bonds in holding tank 13, and kraft layer 22 and first core board 11, second core board 12 bond fixedly, and shock attenuation note 5 and kraft layer 22 bond fixedly. The face plate 2 is adhered on the outer side of the kraft paper layer 22, and the waterproof layer 23 is adhered on the outer side of the face plate 2 to obtain the corrugated board.
Step three: after the corrugated board is cooled, the printing machine performs die cutting on the corrugated board, and performs printing, slotting, corner cutting and line pressing on the corrugated board in a preset shape. And finally, adhering the corrugated board through a folding box adhering machine and a binding machine, and binding and forming to obtain the corrugated case.
The corrugated board is fed onto the printing cylinder and the impression cylinder by the paper feeding device, the printing cylinder prints ink on the surface of the corrugated board, and the protrusion of the impression cylinder embosses the surface of the corrugated board to form a pattern shape.
The angle cutting and slotting device is provided with an angle cutting knife and a slotting knife, the angle cutting knife cuts the corner of the corrugated board when the hobbing cutter rotates, the slotting knife cuts the folding interface of the corrugated board when the hobbing cutter rotates, the hobbing cutter for cutting the angle cutting and slotting and the printing roller synchronously rotate, and the rotating speeds of the angle cutting and slotting cutter and the printing roller are the same.
During line pressing, the gap of the line pressing device is adjusted, and the cracking of the corrugated board or the insufficient line pressing depth are avoided. And folding the corrugated case after the die cutting procedure by using a folding machine, and binding the joint of the corrugated board by using a binding machine.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims (5)

1. The utility model provides a corrugated board, includes corrugated medium (1) and panel (2), corrugated medium (1) and panel (2) fixed connection, its characterized in that: the corrugated paper core (1) is provided with a mounting groove (14) and a containing groove (13), the mounting groove (14) and the containing groove (13) are arranged on the corrugated paper core (1) at intervals, an elastic rod (3) is fixed in the mounting groove (14), a damping paper slip (5) is fixed in the containing groove (13), the corrugated paper core (1) comprises a first core plate (11) and a second core plate (12), the first core plate (11) and the second core plate (12) are symmetrically arranged, the first core plate (11) and the second core plate (12) are fixedly connected, the first core plate (11) and the second core plate (12) are formed by a plurality of continuous isosceles trapezoid corrugated paper slips (15), the concave part of each corrugated paper slip (15) forms the containing groove (13), the opposite corrugated paper slips (15) are surrounded to form the mounting groove (14), the mounting groove (14) is honeycomb-shaped, the elastic rod (3) comprises a connecting paper board (31) and a rubber strip (32), the connecting paper board (31) is fixedly connected with the corrugated paper sheet (15), the connecting paper board (31) is rolled into a cylinder, a groove (35) is formed in the axis position of the connecting paper board (31), and the rubber strip (32) is filled in the groove (35); be equipped with elasticity rope (4) on connecting cardboard (31), connection cardboard (31) and rubber strip (32) are worn to locate in elasticity rope (4), and the outside of connecting cardboard (31) is exposed to the tip of elasticity rope (4), and the tip and the connection cardboard (31) bonding of elasticity rope (4) are fixed, and elasticity rope (4) and panel (2) parallel arrangement.
2. A corrugated cardboard according to claim 1 wherein: shock attenuation note (5) include first note (51), second note (52) and arc offset plate (53), first note (51) and corrugated paper core (1) fixed connection, second note (52) and panel (2) fixed connection, the vertical cross-section of arc offset plate (53) is the U type, and arc offset plate (53) have two, and two arc offset plates (53) set up from each other mutually, and arc offset plate (53) are located between first note (51) and second note (52), arc offset plate (53) and first note (51), second note (52) fixed connection.
3. A corrugated cardboard according to claim 1 wherein: the panel (2) comprises a surface layer (21) and a kraft layer (22), the kraft layer (22) is fixed on the inner side surface of the surface layer (21), and the kraft layer (22) is fixedly connected with the corrugated paper core (1).
4. A corrugated cardboard according to claim 3 wherein: and a waterproof layer (23) is arranged on the side of the surface layer (21) departing from the kraft paper layer (22).
5. A production process of corrugated cartons is characterized in that: made of corrugated cardboard according to any one of claims 1 to 4, prepared by the following steps:
the method comprises the following steps: preparing an elastic rod (3) and a damping paper strip (5);
step two: preheating the panel (2) and the corrugated paper core (1), adhering and fixing the elastic rod (3) and the corrugated paper core (1) through viscose glue, fixing the damping paper slips (5) on the inner side of the panel (2) at equal intervals, and adhering and fixing the corrugated paper core (1), the panel (2) and the damping paper slips (5) to form a corrugated board;
step three: and (5) cooling the corrugated board, and then die-cutting and binding to obtain the corrugated case.
CN201911296808.8A 2019-12-16 2019-12-16 Corrugated board and corrugated carton production process Active CN110861356B (en)

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Publication number Priority date Publication date Assignee Title
CN114633934B (en) * 2022-03-24 2024-04-26 深圳市艺鼎鹏包装设计有限公司 Packaging box and forming process thereof

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