CN111806017A - Dampproofing anti extrusion corrugated container board and carton - Google Patents

Dampproofing anti extrusion corrugated container board and carton Download PDF

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Publication number
CN111806017A
CN111806017A CN202010710005.9A CN202010710005A CN111806017A CN 111806017 A CN111806017 A CN 111806017A CN 202010710005 A CN202010710005 A CN 202010710005A CN 111806017 A CN111806017 A CN 111806017A
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CN
China
Prior art keywords
core
arc
core plate
corrugated
paper layer
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Withdrawn
Application number
CN202010710005.9A
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Chinese (zh)
Inventor
陈军江
徐小军
夏伟龙
郑华东
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Zhejiang Xiwang Pack Co ltd
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Zhejiang Xiwang Pack Co ltd
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Priority to CN202010710005.9A priority Critical patent/CN111806017A/en
Publication of CN111806017A publication Critical patent/CN111806017A/en
Withdrawn legal-status Critical Current

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    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of 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
    • B32B1/00—Layered products having a general shape other than plane
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B32B3/085—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts spaced apart pieces on the surface of a 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/18—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes
    • 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
    • D21H27/10—Packing paper
    • 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
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/56—Damping, energy absorption
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/764—Insect repellent
    • 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
    • B32B2439/00—Containers; Receptacles
    • B32B2439/02—Open containers
    • B32B2439/06—Bags, sacks, sachets
    • 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
    • B32B2553/00—Packaging equipment or accessories not otherwise provided for
    • B32B2553/02—Shock absorbing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Buffer Packaging (AREA)

Abstract

The invention relates to the technical field of corrugated boards, in particular to a moisture-proof anti-extrusion corrugated board and a carton, which comprise a waterproof layer, a surface paper layer and an inner paper layer which are sequentially arranged from top to bottom, wherein the waterproof layer is a polyvinyl chloride film and is adhered to the upper end of the surface paper layer through waterproof glue; the corrugated paper is characterized in that a corrugated core layer is arranged between the surface paper layer and the inner paper layer, the corrugated core layer comprises a plurality of first core plates which are bonded to the lower end of the surface paper layer and are arranged at intervals and a plurality of second core plates which are bonded to the upper end of the inner paper layer and are arranged at intervals, the first core plates and the second core plates are arranged in a staggered mode, and two sides of the lower portion of each first core plate are bonded with the corresponding second core plates on two sides respectively. The corrugated board can be kept under the action of better structural strength at different positions by the aid of the first core board and the second core board, and has better deformation resistance and impact resistance, so that the corrugated board can adapt to different impacts in a carrying process.

Description

Dampproofing anti extrusion corrugated container board and carton
Technical Field
The invention relates to the technical field of corrugated boards, in particular to a moisture-proof anti-extrusion corrugated board and a carton.
Background
Corrugated board is a multi-layer adhesive body, which is composed of at least one layer of wavy core paper interlayer (commonly called as "hole paper", "corrugated core paper", "corrugated paper core", "corrugated base paper") and one layer of paper board (also called as "box board paper" or "box paper board"). It has high mechanical strength and can resist collision and falling in the process of transportation. The actual performance of a corrugated box depends on three factors: the nature of the core paper and paperboard and the structure of the carton itself.
The corrugated corrugations of the corrugated board are like arch doors which are connected one by one, are mutually parallel to form a row and mutually support to form a triangular structure body, so that the corrugated board has better mechanical strength, can bear certain pressure from a plane, is rich in elasticity and has good buffering effect; the cushion can be made into liners or containers with various shapes and sizes according to requirements, and is simpler, more convenient and faster than plastic buffer materials; the coating is slightly influenced by temperature, has good light-shielding property, is not deteriorated by illumination, is generally slightly influenced by humidity, but is not suitable for long-term use in an environment with high humidity, and influences the strength of the coating.
The invention discloses a novel high-elasticity double-corrugated-core corrugated board, which comprises an inner paper surface layer, wherein an enhancement layer is fixedly arranged on the outer surface of the inner paper surface layer, a first corrugated paper core layer is arranged on the outer surface of the enhancement layer, a PET (polyethylene terephthalate) intermediate layer is fixedly arranged on the outer surface of the first corrugated paper core layer, a second corrugated paper core layer is fixedly arranged on the outer surface of the PET intermediate layer, a non-woven fabric positioning layer is fixedly arranged on the outer surface of the second corrugated paper core layer, an elastic buffer layer is fixedly arranged on the outer surface of the non-woven fabric positioning layer, a kraft paper layer is fixedly arranged on the outer surface of the elastic buffer layer, and an outer paper surface layer is fixedly arranged on the outer surface of the kraft paper layer; be provided with many silica gel sticks in the first corrugated paper sandwich layer, be provided with a plurality of thing through-holes of putting in the second corrugated paper sandwich layer, every is put and all is provided with a spring assembly in the through-hole.
But the structural strength of current corrugated container board is poor, and corrugated container board can take place deformation because of the pressurized often in the use, can't adapt to different impact in the handling, causes corrugated container board inlayer inoperative easily, damages even, influences the safety of packing material, and the buffering compressive capacity that makes corrugated container board play is relatively poor, influences corrugated container board's normal use.
Therefore, the moistureproof anti-extrusion corrugated board and the carton are designed, the corrugated board can have better deformation resistance and impact resistance under the action of keeping better structural strength at different positions through the arrangement of the first core board and the second core board, and therefore the moistureproof anti-extrusion corrugated board and the carton can adapt to different impacts in the carrying process.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problems of poor structural strength, easy deformation due to compression and poor buffering and pressure resistance of the existing corrugated board and carton, the invention provides the moisture-proof and extrusion-resistant corrugated board and carton.
The technical scheme adopted by the invention for solving the technical problems is as follows: a damp-proof anti-extrusion corrugated board comprises a waterproof layer, a surface paper layer and an inner paper layer which are sequentially arranged from top to bottom, wherein the waterproof layer is a polyvinyl chloride film and is adhered to the upper end of the surface paper layer through waterproof glue; a corrugated core layer is arranged between the surface paper layer and the inner paper layer, the corrugated core layer comprises a plurality of first core plates which are bonded at the lower end of the surface paper layer and are arranged at intervals and a plurality of second core plates which are bonded at the upper end of the inner paper layer and are arranged at intervals, the first core plates and the second core plates are arranged in a staggered manner, and two sides of the lower part of each first core plate are bonded with the corresponding second core plates at two sides respectively; the first core plate is in a concave semi-elliptical shape, the second core plates are in convex semi-elliptical shapes, the curvature radius of the second core plates is larger than that of the first core plates, and the first core plates and the second core plates jointly form a continuous hollow-out supporting structure.
When the corrugated board is used, the waterproof layer made of the polyvinyl chloride film is used for blocking external water, so that the corrugated board has a good moisture-proof effect and can protect objects placed inside; because the first core plate and the second core plate jointly form a continuous hollow-out supporting structure, the thickness of the corrugated paper plate can be increased, the corrugated paper plate has good buffering performance, the probability of cavity deformation between the inner paper layer and the surface paper layer can be effectively reduced, and the firmness and the durability of the composite corrugated paper plate are improved; meanwhile, because the curvature radius of the second core plate is larger than that of the first core plate, the buffering performance of the second core plate with the large curvature radius is better than that of the first core plate with the small curvature radius, and the stability of the first core plate is stronger than that of the second core plate, so that the corrugated board can be kept in different positions under the effect of keeping better structural strength when the first core plate and the second core plate are arranged in a staggered manner, and the corrugated board also has better deformation resistance and impact resistance, and can adapt to different impacts in the carrying process.
Preferably, the elastic columns are bonded at the lower ends of the face paper layers in the first core board, the elastic columns are arranged in the front-back direction, and the outer surfaces of the elastic columns are abutted against the inner side face of the first core board. Because the cushioning property of first core board is relatively poor, receive to strike too big and warp and just hardly recover when it, consequently through setting up the sunken deformation to the inboard when restricting its atress of elasticity post, improve cushioning property for corrugated container board can resume fast and cushion the atress many times, improve corrugated container board's practicality, and first core board can recover under the effect of elasticity post after strikeing, avoid first core board to recover the problem that the position influences its compressive property and stability.
Preferably, an arc-shaped air bag is arranged between the elastic column and the inner side face of the first core plate, the lower surface of the arc-shaped air bag is bonded with the inner side face of the first core plate, the upper surface of the arc-shaped air bag is an arc-shaped groove with an opening at the upper end, the radius of the arc-shaped groove is smaller than that of the elastic column, and an arc-shaped cavity is formed in the space between the arc-shaped groove and the elastic column. Because the space between the arc-shaped groove and the elastic column forms the arc-shaped cavity, in the process that the first core plate is pressed to be close to the elastic column, the elastic column firstly extrudes the arc-shaped air bag to expand until one side of the arc-shaped groove is completely attached to the surface of the elastic column, the expanded arc-shaped air bag can buffer the first core plate for the first time, the rear arc-shaped air bag continues to deform by forward extrusion force, the reaction force can buffer the first core plate for the second time, and finally the elastic column is pressed to deform to realize the third buffer, so that the buffer effect can be gradually improved for three times under single impact, the whole buffer effect is better, simultaneously, more outer side surfaces of the arc-shaped air bag are tightly attached to the inner wall of the first core plate due to deformation, the stress area is improved, and the condition that the first core plate is damaged due to overlarge local stress can be avoided, the structural strength and the stability of the first core plate are improved.
Preferably, a V-shaped reinforcing paperboard is arranged on the inner side of the upper part of the second core board, two ends of the reinforcing paperboard are symmetrically bonded on the inner side wall of the upper part of the second core board, and the position of a bonding point between the reinforcing paperboard and the second core board is matched with the position of a bonding point between the first core board and the second core board. Because the first core plate generates a downward moving trend when being impacted, the upper part of the second core plate is further extruded, and an oblique downward impact force is generated at the contact point, but when the impact force is too large, the upper part of the second core plate is easy to deform and damage, so that the V-shaped reinforcing paperboard can play a role similar to a reinforcing rib on one hand, the structural strength of the upper part of the second core plate is enhanced, and the deformation and damage of the upper part of the second core plate are avoided; on the other hand, the reinforcing paperboard can also offset the extrusion force generated by the first core plates on two sides of the single second core plate, so that the second core plate only receives vertical downward resultant force, and further the second core plate can be buffered by slight shaking, and the situation that the second core plate is bent or generates plastic deformation and cannot rebound due to the fact that the second core plate receives horizontal force is avoided.
Preferably, two arc-shaped elastic sheets are symmetrically arranged on the inner paper layer under the reinforced paperboard, the middle parts of the arc-shaped elastic sheets are abutted, a slot matched with the reinforced paperboard is reserved between the upper ends of the arc-shaped elastic sheets, and the width of the slot is gradually reduced from top to bottom. When the second core plate is pressed, the reinforcing paper plate moves downwards to be inserted into the slot and presses and open the two arc-shaped elastic sheets, and in the process, on one hand, the larger the deformation generated by the arc-shaped elastic sheets is, the larger the reaction force generated by the arc-shaped elastic sheets is, so that the larger the supporting force on the reinforcing paper plate is, the structural strength of the second core plate is further improved, and the pressure resistance of the second core plate is improved; in addition, the larger the deformation generated by the arc-shaped elastic sheet is, the larger the friction force between the arc-shaped elastic sheet and the reinforcing paperboard is, the downward movement of the reinforcing paperboard is further hindered, and the overall pressure resistance is improved; meanwhile, a large amount of impact energy is consumed in the deformation process of the arc-shaped elastic sheet and the friction process between the arc-shaped elastic sheet and the reinforcing paperboard, so that the effect of quickly buffering and damping is achieved.
Preferably, a steel wire rope spring wound in a spiral mode is arranged between the side walls of the lower portions of the adjacent second core plates, the steel wire rope spring penetrates through the single second core plate twice in a single spring coil, and old newspaper groups are arranged between the steel wire rope spring and the arc-shaped elastic sheet in the single second core plate. Through the arrangement of the steel wire rope spring, on one hand, the lower end of the descending first core plate can be supported in an auxiliary mode, the extrusion force between the first core plate and the second core plate is reduced, the probability of plastic deformation of the first core plate and the second core plate is further reduced, and the overall compression resistance is improved; meanwhile, when the steel wire rope spring is impacted, the friction force among the rope strands and among the steel wires in the steel wire rope spring can achieve the effects of energy absorption and shock absorption, and the loading and unloading processes are energy absorption processes, so that the shock is quickly attenuated, and the overall shock absorption performance is greatly improved; in addition, the side wall of the second core plate lower than the steel wire rope spring can be prevented from being impacted, so that the probability of plastic deformation of the second core plate is further reduced, and the integral compression resistance is improved; when the corrugated board is used, the wire rope spring and the arc-shaped elastic sheet have the tendency of moving towards each other, so that the old newspaper groups are filled between the wire rope spring and the arc-shaped elastic sheet, and the wire rope spring and the arc-shaped elastic sheet can be prevented from moving towards each other, so that the integral structural strength and the compressive property are improved; meanwhile, the old newspaper cluster has a good vibration damping and buffering effect, so that the overall buffering performance can be reinforced; the old newspaper ball is reused, the utilization rate of resources is improved, the price is relatively low, and the newspaper ball has better water absorption performance, so that the water absorption or moisture absorption probability of the packaged objects can be reduced, the water resistance and moisture resistance of the packaged objects are improved, the problem that a steel wire rope spring is corroded due to moisture is also reduced, and the service life is prolonged; the oil film of the old newspaper ball also has good insect expelling performance, can protect the packaged objects and improves the insect preventing performance.
A carton formed by folding a moisture resistant, crush resistant corrugated paperboard as described above.
Preferably, the carton comprises a rectangular frame surrounded by four side panels, a bottom panel is arranged at the lower end of the rectangular frame, folded plates with creases are arranged at the upper ends of the side panels, and the side panels, the bottom panel and the folded plates are all made of the moisture-proof anti-extrusion corrugated board.
The invention has the following beneficial effects:
1. according to the moisture-proof anti-extrusion corrugated board and the carton, the first core board and the second core board are arranged, so that the corrugated board can have better deformation resistance and impact resistance under the effect of keeping better structural strength at different positions, and can adapt to different impacts in the carrying process.
2. According to the moisture-proof anti-extrusion corrugated board and the carton, the arrangement of the elastic columns and the arc-shaped air bags can improve the buffering performance, so that the corrugated board can be quickly recovered and can be subjected to buffering stress for multiple times, and the problem that the compressive performance and the stability of the first core board are influenced due to the fact that the first core board cannot be recovered is solved.
3. According to the moisture-proof anti-extrusion corrugated board and the carton, the overall structural strength and the compressive property can be greatly improved through the arrangement of the reinforcing paperboard, the arc-shaped elastic sheets and the steel wire rope springs, a large amount of impact energy is consumed, and the effects of quick buffering and shock absorption are achieved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of a moisture-resistant, crush-resistant corrugated paperboard of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a cross-sectional view of a moisture resistant, crush resistant corrugated paperboard of the present invention;
fig. 4 is a perspective view of a carton of the present invention.
In the figure:
1. a waterproof layer; 2. a face paper layer; 3. an inner paper layer; 4. a first core board; 41. an elastic column; 42. an arc-shaped air bag; 43. an arc-shaped cavity; 5. a second core board; 51. a reinforced paperboard; 52. an arc-shaped elastic sheet; 53. a slot; 54. a wire rope spring; 55. old newspaper groups; 6. a side panel; 7. a bottom panel; 8. and (5) folding the board.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 3, the moisture-proof and anti-extrusion corrugated board comprises a waterproof layer 1, a surface paper layer 2 and an inner paper layer 3 which are arranged in sequence from top to bottom, wherein the waterproof layer 1 is a polyvinyl chloride film and is adhered to the upper end of the surface paper layer 2 through waterproof glue; a corrugated core layer is arranged between the surface paper layer 2 and the inner paper layer 3, the corrugated core layer comprises a plurality of first core plates 4 which are bonded at the lower end of the surface paper layer 2 and are arranged at intervals and a plurality of second core plates 5 which are bonded at the upper end of the inner paper layer 3 and are arranged at intervals, the first core plates 4 and the second core plates 5 are arranged in a staggered manner, and two sides of the lower part of each first core plate 4 are bonded with the corresponding second core plates 5 at two sides respectively; the first core plate 4 is in a concave semi-elliptical shape, the second core plates 5 are in convex semi-elliptical shapes, the curvature radius of the second core plates 5 is larger than that of the first core plate 4, and the first core plate 4 and the second core plates 5 jointly form a continuous hollow-out supporting structure.
When the corrugated board is used, the waterproof layer 1 made of the polyvinyl chloride film is used for blocking external water, so that the corrugated board has a good moisture-proof effect and can protect objects placed inside; because the first core plate 4 and the second core plate 5 jointly form a continuous hollow-out supporting structure, the thickness of the corrugated board can be increased, the corrugated board has good buffer performance, the probability of cavity deformation between the inner paper layer 3 and the surface paper layer 2 can be effectively reduced, and the firmness and the durability of the composite corrugated board are improved; meanwhile, because the curvature radius of the second core plate 5 is larger than that of the first core plate 4, the buffering performance of the second core plate 5 with a large curvature radius is better than that of the first core plate 4 with a small curvature radius, and the stability of the first core plate 4 is stronger than that of the second core plate 5, so that when the first core plate 4 and the second core plate 5 are arranged in a staggered manner, the corrugated board can be kept in different positions under the action of keeping better structural strength, and the corrugated board can also have better deformation resistance and impact resistance, and can adapt to different impacts in the carrying process.
In one embodiment of the present invention, an elastic column 41 is bonded to a lower end of the face paper layer 2 in the first core 4, the elastic column 41 is arranged in a front-rear direction, and an outer surface of the elastic column 41 abuts against an inner surface of the first core 4. Because first core plate 4's shock-absorbing capacity is relatively poor, receive to strike too big and warp just hardly to recover when it, consequently through setting up elasticity post 41 can be to the sunken deformation to the inboard when restricting its atress, improve shock-absorbing capacity, make corrugated container board can resume fast and cushion the atress many times, improve corrugated container board's practicality, and first core plate 4 can recover under the effect of elasticity post 41 after strikeing, avoid first core plate 4 recovery not in place to influence its compressive property and stable problem.
In an embodiment of the present invention, an arc-shaped air bag 42 is disposed between the elastic column 41 and the inner side surface of the first core plate 4, the lower surface of the arc-shaped air bag 42 is bonded to the inner side surface of the first core plate 4, the upper surface of the arc-shaped air bag 42 is an arc-shaped groove with an open upper end, the radius of the arc-shaped groove is smaller than that of the elastic column 41, and a space between the arc-shaped groove and the elastic column 41 forms an arc-shaped cavity 43. Because the space between the arc-shaped groove and the elastic column 41 forms the arc-shaped cavity 43, in the process that the first core plate 4 is pressed to be close to the elastic column 41, firstly, the elastic column 41 extrudes the arc-shaped air bag 42 to expand the arc-shaped air bag until one side of the arc-shaped groove is completely attached to the surface of the elastic column 41, the expanded arc-shaped air bag 42 can buffer the first core plate 4 for the first time, and the rear arc-shaped air bag 42 is continuously deformed by positive extrusion force, the reaction force can buffer the first core plate 4 for the second time, and finally, the elastic column 41 is pressed to deform to realize the third buffer, so that the buffer effect can be gradually improved under the single impact, the whole buffer effect is better, and simultaneously, because the arc-shaped air bag 42 deforms, more outer side faces of the arc-shaped air bag are attached to the inner wall of the first core plate 4, the stress area is improved, and the situation that the first core plate 4, the structural strength and stability of the first core plate 4 are improved.
In an embodiment of the present invention, a V-shaped reinforced paperboard 51 is disposed on the inner side of the upper portion of the second core plate 5, two ends of the reinforced paperboard 51 are symmetrically adhered to the inner side wall of the upper portion of the second core plate 5, and the position of the adhesion point between the reinforced paperboard 51 and the second core plate 5 matches the position of the adhesion point between the first core plate 4 and the second core plate 5. Because the first core plate 4 has a tendency of moving downwards when being impacted, the upper part of the second core plate 5 is further extruded, and an oblique downward impact force is generated at the contact point, but when the impact force is too large, the upper part of the second core plate 5 is easy to deform and damage, and therefore, through the arrangement of the V-shaped reinforced paper plate 51, on one hand, the effect similar to a reinforcing rib can be achieved, the structural strength of the upper part of the second core plate 5 is enhanced, and the deformation and damage of the upper part of the second core plate 5 are avoided; on the other hand, the reinforcing paper board 51 can also offset the pressing forces generated by the first core boards 4 on both sides of the single second core board 5, so that the second core board 5 only receives a resultant force vertically downward, and further the second core board 5 can be buffered by slight shaking, thereby avoiding the situation that the second core board 5 cannot rebound due to bending or plastic deformation caused by a horizontal force.
As an embodiment of the present invention, two arc-shaped elastic pieces 52 are symmetrically disposed on the inner paper layer 3 directly below the reinforcing paper board 51, the middle parts of the arc-shaped elastic pieces 52 are abutted, a slot 53 matching with the reinforcing paper board 51 is left between the upper ends of the arc-shaped elastic pieces 52, and the width of the slot 53 is gradually reduced from top to bottom. When the second core plate 5 is pressed, the reinforcing paper plate 51 moves downwards to be inserted into the slot 53 and to squeeze and open the two arc-shaped elastic pieces 52, in the process, on one hand, the larger the deformation generated by the arc-shaped elastic pieces 52 is, the larger the reaction force generated by the arc-shaped elastic pieces 52 is, so that the larger the supporting force on the reinforcing paper plate 51 is, the structural strength of the second core plate 5 is further improved, and the pressure resistance of the second core plate is improved; in addition, the larger the deformation generated by the arc-shaped elastic sheet 52 is, the larger the friction force between the arc-shaped elastic sheet 52 and the reinforced paperboard 51 is, so that the reinforced paperboard 51 is further prevented from descending, and the overall pressure resistance is improved; meanwhile, a large amount of impact energy is consumed in the deformation process of the arc-shaped elastic sheet 52 and the friction process between the arc-shaped elastic sheet and the reinforcing paperboard 51, so that the effects of quick buffering and shock absorption are achieved.
As an embodiment of the present invention, a wire rope spring 54 wound in a spiral manner is disposed between the lower side walls of the adjacent second core plates 5, the wire rope spring 54 passes through a single second core plate 5 twice in a single coil, and old newspaper groups 55 are disposed between the wire rope spring 54 and the arc-shaped elastic sheet 52 in the single second core plate 5. Through the arrangement of the steel wire rope spring 54, on one hand, the lower end of the descending first core plate 4 can be supported in an auxiliary mode, the extrusion force between the first core plate 4 and the second core plate 5 is reduced, the probability of plastic deformation of the first core plate 4 and the second core plate 5 is further reduced, and the overall compression resistance is improved; meanwhile, when the steel wire rope spring 54 is impacted, the friction force among the strands and among the steel wires in the steel wire rope spring can achieve the effects of energy absorption and shock absorption, and the loading and unloading processes are energy absorption processes, so that the shock is quickly attenuated, and the overall shock absorption performance is greatly improved; in addition, the steel wire rope spring 54 can prevent the side wall of the second core plate 5 lower than the steel wire rope spring from being impacted, so that the probability of plastic deformation of the second core plate 5 is further reduced, and the overall compression resistance is improved; when the corrugated board is pressed, the wire rope spring 54 and the arc-shaped elastic sheet 52 have the tendency of moving towards each other, so that the old newspaper clusters 55 are filled between the wire rope spring 54 and the arc-shaped elastic sheet, and the moving towards each other can be prevented, and the integral structural strength and the pressure resistance can be further improved; meanwhile, the old newspaper cluster 55 has a good vibration damping and buffering effect, so that the overall buffering performance can be reinforced; the old newspaper ball 55 is reused, so that the utilization rate of resources is improved, the price is relatively low, and the newspaper ball has better water absorption performance, so that the water absorption or moisture absorption probability of the packaged objects can be reduced, the water and moisture resistance of the packaged objects is improved, the problem that the steel wire rope spring 54 is corroded and rusted due to moisture is also reduced, and the service life is prolonged; the oil film of the old newspaper ball 55 also has good insect repelling performance, can protect the packaged objects and improves the insect repelling performance.
As shown in fig. 4, a carton is formed by folding a moisture resistant, crush resistant corrugated paperboard of the type described above.
In an embodiment of the present invention, the carton comprises a rectangular frame surrounded by four side panels 6, a bottom panel 7 is disposed at the lower end of the rectangular frame, folded plates 8 with creases are disposed at the upper ends of the side panels 7, and the side panels 6, the bottom panel 7 and the folded plates 8 are made of the above-mentioned moisture-proof and anti-extrusion corrugated board.
When the corrugated board is used, the waterproof layer 1 made of the polyvinyl chloride film is used for blocking external water, so that the corrugated board has a good moisture-proof effect and can protect objects placed inside; because the first core plate 4 and the second core plate 5 jointly form a continuous hollow-out supporting structure, the thickness of the corrugated board can be increased, the corrugated board has good buffer performance, the probability of cavity deformation between the inner paper layer 3 and the surface paper layer 2 can be effectively reduced, and the firmness and the durability of the composite corrugated board are improved; meanwhile, as the curvature radius of the second core plate 5 is larger than that of the first core plate 4, the buffering performance of the second core plate 5 with a large curvature radius is better than that of the first core plate 4 with a small curvature radius, and the stability of the first core plate 4 is stronger than that of the second core plate 5, so that when the first core plate 4 and the second core plate 5 are arranged in a staggered manner, the corrugated board can be enabled to have better deformation resistance and impact resistance at different positions under the action of keeping better structural strength, and can adapt to different impacts in the carrying process; because the buffering performance of the first core plate 4 is poor, when the first core plate is deformed too much due to impact, the first core plate is difficult to restore, the elastic column 41 can deform the concave part towards the inner side when the stress of the first core plate is limited, the buffering performance is improved, the corrugated board can be quickly restored and can be buffered for multiple times, the practicability of the corrugated board is improved, the first core plate 4 can be restored under the action of the elastic column 41 after the impact is finished, and the problem that the compression resistance and the stability of the first core plate 4 are influenced due to the fact that the first core plate 4 is not restored in place is solved; because the space between the arc-shaped groove and the elastic column 41 forms the arc-shaped cavity 43, in the process that the first core plate 4 is pressed to be close to the elastic column 41, firstly, the elastic column 41 extrudes the arc-shaped air bag 42 to expand the arc-shaped air bag until one side of the arc-shaped groove is completely attached to the surface of the elastic column 41, the expanded arc-shaped air bag 42 can buffer the first core plate 4 for the first time, and the rear arc-shaped air bag 42 is continuously deformed by positive extrusion force, the reaction force can buffer the first core plate 4 for the second time, and finally, the elastic column 41 is pressed to deform to realize the third buffer, so that the buffer effect can be gradually improved under the single impact, the whole buffer effect is better, and simultaneously, because the arc-shaped air bag 42 deforms, more outer side faces of the arc-shaped air bag are attached to the inner wall of the first core plate 4, the stress area is improved, and the situation that the first core plate 4, the structural strength and stability of the first core plate 4 are improved; because the first core plate 4 has a tendency of moving downwards when being impacted, the upper part of the second core plate 5 is further extruded, and an oblique downward impact force is generated at the contact point, but when the impact force is too large, the upper part of the second core plate 5 is easy to deform and damage, and therefore, through the arrangement of the V-shaped reinforced paper plate 51, on one hand, the effect similar to a reinforcing rib can be achieved, the structural strength of the upper part of the second core plate 5 is enhanced, and the deformation and damage of the upper part of the second core plate 5 are avoided; on the other hand, the reinforcing paperboard 51 can also offset the extrusion forces generated by the first core boards 4 on both sides of the single second core board 5, so that the second core board 5 is only subjected to a resultant force vertically downward, and further the second core board 5 can be buffered by slight shaking, thereby avoiding the situation that the second core board 5 cannot rebound due to bending or plastic deformation caused by a horizontal force; when the second core plate 5 is pressed, the reinforcing paper plate 51 moves downwards to be inserted into the slot 53 and to squeeze and open the two arc-shaped elastic pieces 52, in the process, on one hand, the larger the deformation generated by the arc-shaped elastic pieces 52 is, the larger the reaction force generated by the arc-shaped elastic pieces 52 is, so that the larger the supporting force on the reinforcing paper plate 51 is, the structural strength of the second core plate 5 is further improved, and the pressure resistance of the second core plate is improved; in addition, the larger the deformation generated by the arc-shaped elastic sheet 52 is, the larger the friction force between the arc-shaped elastic sheet 52 and the reinforced paperboard 51 is, so that the reinforced paperboard 51 is further prevented from descending, and the overall pressure resistance is improved; meanwhile, a large amount of impact energy is consumed in the deformation process of the arc-shaped elastic sheet 52 and the friction process between the arc-shaped elastic sheet and the reinforcing paperboard 51, so that the effect of quickly buffering and damping is achieved; through the arrangement of the steel wire rope spring 54, on one hand, the lower end of the descending first core plate 4 can be supported in an auxiliary mode, the extrusion force between the first core plate 4 and the second core plate 5 is reduced, the probability of plastic deformation of the first core plate 4 and the second core plate 5 is further reduced, and the overall compression resistance is improved; meanwhile, when the steel wire rope spring 54 is impacted, the friction force among the strands and among the steel wires in the steel wire rope spring can achieve the effects of energy absorption and shock absorption, and the loading and unloading processes are energy absorption processes, so that the shock is quickly attenuated, and the overall shock absorption performance is greatly improved; in addition, the steel wire rope spring 54 can prevent the side wall of the second core plate 5 lower than the steel wire rope spring from being impacted, so that the probability of plastic deformation of the second core plate 5 is further reduced, and the overall compression resistance is improved; when the corrugated board is produced, the wire rope spring 54 and the arc-shaped elastic sheet 52 have the tendency of moving towards each other, so that the old newspaper clusters 55 are filled between the wire rope spring 54 and the arc-shaped elastic sheet, and the moving towards each other can be prevented, and the integral structural strength and the pressure resistance can be further improved; meanwhile, the old newspaper cluster 55 has a good vibration damping and buffering effect, so that the overall buffering performance can be reinforced; the old newspaper ball 55 is reused, so that the utilization rate of resources is improved, the price is relatively low, and the newspaper ball has better water absorption performance, so that the water absorption or moisture absorption probability of the packaged objects can be reduced, the water and moisture resistance of the packaged objects is improved, the problem that the steel wire rope spring 54 is corroded and rusted due to moisture is also reduced, and the service life is prolonged; the oil film of the old newspaper ball 55 also has good insect repelling performance, can protect the packaged objects and improves the insect repelling performance.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. The moisture-proof anti-extrusion corrugated board is characterized by comprising a waterproof layer (1), a surface paper layer (2) and an inner paper layer (3) which are sequentially arranged from top to bottom, wherein the waterproof layer (1) is a polyvinyl chloride film and is adhered to the upper end of the surface paper layer (2) through waterproof glue; a corrugated core layer is arranged between the surface paper layer (2) and the inner paper layer (3), the corrugated core layer comprises a plurality of first core plates (4) which are bonded at the lower end of the surface paper layer (2) and a plurality of second core plates (5) which are bonded at the upper end of the inner paper layer (3) and are arranged at intervals, the first core plates (4) and the second core plates (5) are arranged in a staggered manner, and two sides of the lower part of each first core plate (4) are bonded with the corresponding second core plates (5) at two sides respectively; the first core plate (4) is in a concave semi-elliptical shape, the second core plates (5) are in convex semi-elliptical shapes, the curvature radius of the second core plates (5) is larger than that of the first core plates (4), and the first core plates (4) and the second core plates (5) jointly form a continuous hollow-out supporting structure.
2. A moisture-proof and anti-squeezing corrugated cardboard as claimed in claim 1, wherein the elastic columns (41) are bonded to the lower end of the face paper layer (2) in the first core (4), the elastic columns (41) are arranged in the front-back direction, and the outer surfaces of the elastic columns (41) are abutted against the inner side of the first core (4).
3. A moisture-proof and extrusion-resistant corrugated cardboard as claimed in claim 2, wherein an arc-shaped air bag (42) is arranged between the elastic columns (41) and the inner side of the first core plate (4), the lower surface of the arc-shaped air bag (42) is bonded with the inner side of the first core plate (4), the upper surface of the arc-shaped air bag (42) is an arc-shaped groove with an upper end opened, the radius of the arc-shaped groove is smaller than that of the elastic columns (41), and the space between the arc-shaped groove and the elastic columns (41) forms an arc-shaped cavity (43).
4. A moisture-proof and crush-resistant corrugated cardboard as claimed in claim 3, wherein the second core (5) is provided with a V-shaped reinforcing cardboard (51) at the inner side of the upper part, the two ends of the reinforcing cardboard (51) are symmetrically adhered to the inner side wall of the upper part of the second core (5), and the position of the adhesion point between the reinforcing cardboard (51) and the second core (5) is matched with the position of the adhesion point between the first core (4) and the second core (5).
5. The moisture-proof and anti-extrusion corrugated board as claimed in claim 4, wherein two arc-shaped elastic sheets (52) are symmetrically arranged on the inner paper layer (3) right below the reinforced paperboard (51), the arc-shaped elastic sheets (52) are abutted between the middle parts, a slot (53) matched with the reinforced paperboard (51) is reserved between the upper ends of the arc-shaped elastic sheets, and the width of the slot (53) is gradually reduced from top to bottom.
6. A moisture-proof and extrusion-resistant corrugated cardboard as claimed in claim 5, wherein a helically wound wire spring (54) is arranged between the lower side walls of adjacent second core plates (5), the wire spring (54) passes through a single second core plate (5) twice in a single coil, and old paper rolls (55) are arranged between the wire spring (54) and the arc-shaped elastic sheet (52) in the single second core plate (5).
7. A carton formed using the folding of the moisture resistant, crush resistant corrugated paperboard of any one of claims 1-6.
8. A carton according to claim 7, characterized in that the carton comprises a rectangular frame formed by four side panels (6), the rectangular frame having a bottom panel (7) at a lower end thereof, the side panels (6) each having a creased flap (8) at an upper end thereof, the side panels (6), bottom panel (7) and flaps (8) being formed from a moisture-and extrusion-resistant corrugated board of the kind described above.
CN202010710005.9A 2020-07-22 2020-07-22 Dampproofing anti extrusion corrugated container board and carton Withdrawn CN111806017A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112622393A (en) * 2020-12-18 2021-04-09 浙江金瑞祥包装股份有限公司 Compression-resistant impact-resistant composite corrugated board
CN112806707A (en) * 2020-12-23 2021-05-18 滁州市新国景家具制造有限公司 Intelligent drive energy-saving desk
CN112976740A (en) * 2021-04-09 2021-06-18 湖北银河彩印包装有限公司 Dampproofing anti extrusion corrugated container board
CN114476368A (en) * 2020-11-11 2022-05-13 台山市金恒利纸箱包装有限公司 Shock attenuation carton board

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114476368A (en) * 2020-11-11 2022-05-13 台山市金恒利纸箱包装有限公司 Shock attenuation carton board
CN112622393A (en) * 2020-12-18 2021-04-09 浙江金瑞祥包装股份有限公司 Compression-resistant impact-resistant composite corrugated board
CN112622393B (en) * 2020-12-18 2022-06-03 浙江金瑞祥包装股份有限公司 Compression-resistant impact-resistant composite corrugated board
CN112806707A (en) * 2020-12-23 2021-05-18 滁州市新国景家具制造有限公司 Intelligent drive energy-saving desk
CN112806707B (en) * 2020-12-23 2023-08-15 滁州市新国景家具制造有限公司 Intelligent driving energy-saving office table
CN112976740A (en) * 2021-04-09 2021-06-18 湖北银河彩印包装有限公司 Dampproofing anti extrusion corrugated container board

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