A shock-absorbing and pressure-resistant corrugated paper and its production process

Abstract

The present invention provides a shock-absorbing and pressure-resistant corrugated paper and a production process. The shock-absorbing and pressure-resistant corrugated paper includes a first surface paper, a first bubble film, a first core layer paper, a second core layer paper, a second bubble film, and a second surface paper arranged in sequence. Both the first core layer paper and the second core layer paper are wavy. The trough of the first core layer paper extends between a pair of peaks of the second core layer paper. The trough of the first core layer paper includes a first vertical side and a first inclined side arranged in sequence from top to bottom. The peak of the second core layer paper includes a second vertical side and a second inclined side arranged in sequence from bottom to top. The first vertical side is frictionally connected to the second vertical side, and creases are provided on both the first inclined side and the second inclined side. A plurality of first air bubbles and second air bubbles are respectively provided on the bottom side of the first bubble film and the top side of the second bubble film. The first air bubbles are located in the trough of the first core layer paper. The second air bubbles are located in the peak of the second core layer paper. The corrugated paper of the present invention has good shock-absorbing performance.

Description

Technical Field

[0001] The present invention relates to the technical field of corrugated paper, and specifically to a shock-absorbing and pressure-resistant corrugated paper and a production process thereof. Background Art

[0002] Due to its excellent mechanical properties and processing performance, corrugated paper has gradually replaced traditional wooden boards and the like as the main material for transportation packaging. In addition to being able to effectively protect objects, corrugated paper also has the ability to print patterns and texts on its outer surface, thus playing an important role in beautification and publicity. However, the existing corrugated paper has a relatively simple structure, usually only including a wavy core layer and surface layers on the outside of the core layer, which results in poor shock-absorbing performance. During transportation, the objects wrapped by the corrugated paper are easily damaged due to severe vibration. Summary of the Invention

[0003] To overcome the deficiencies of the prior art, the present invention provides a shock-absorbing and pressure-resistant corrugated paper and a production process thereof, and the corrugated paper has good shock-absorbing performance.

[0004] The present invention adopts the following technical solutions.

[0005] A shock-absorbing and pressure-resistant corrugated paper includes a first surface paper, a first bubble film, a first core paper, a second core paper, a second bubble film, and a second surface paper, which are arranged in sequence from top to bottom;

[0006] Both the first core paper and the second core paper are wavy, and the trough of the first core paper extends into a pair of crests of the second core paper;

[0007] The trough of the first core paper includes a first vertical side and a first inclined side arranged in sequence from top to bottom;

[0008] The crest of the second core paper includes a second vertical side and a second inclined side arranged in sequence from bottom to top;

[0009] The first vertical side is in frictional connection with the second vertical side, and creases are provided on both the first inclined side and the second inclined side;

[0010] A plurality of first air bubbles and second air bubbles are respectively provided on the bottom side of the first bubble film and the top side of the second bubble film;

[0011] The first air bubbles are located in the trough of the first core paper and are in contact with the first vertical side and the first inclined side of the trough of the first core paper;

[0012] The second air bubbles are located in the crest of the second core paper and are in contact with the second vertical side and the second inclined side of the crest of the second core paper.

[0013] Further, a first fiberglass cloth is attached to the bottom side of the first core layer paper, and a second fiberglass cloth is attached to the top side of the second core layer paper.

[0014] Further, the first core layer paper and the second core layer paper are rotationally symmetrically arranged.

[0015] A production process of a shock-absorbing and pressure-resistant corrugated paper, the process comprising the following steps:

[0016] S1. Preheat the surface paper using a heating roller, and apply glue to the top side of the surface paper using a roller gluing machine.

[0017] S2. Scrape across the top side of the surface paper processed in step S2 to control the thickness of the glue on the top side of the surface paper.

[0018] S3. Use a bonding machine to bond the pre-prepared bubble film to the surface paper processed in step S3, and then place it for cooling to harden the glue between the bubble film and the surface paper. Among them, a plurality of bubble bodies are provided on the top side of the bubble film, the bottom side of the bubble film is flat, and the bottom side of the bubble film is bonded to the top side of the surface paper.

[0019] S4. Preheat the core layer paper using a heating roller, and apply glue to the top side of the core layer paper using a roller gluing machine.

[0020] S5. Scrape across the top side of the core layer paper processed in step S4 to control the thickness of the glue on the top side of the core layer paper.

[0021] S6. Use a bonding machine to bond the pre-prepared fiberglass cloth to the top side of the core layer paper processed in step S5.

[0022] S7. First, turn over the core layer paper processed in step S6 so that the side with the fiberglass cloth attached to the core layer paper faces downward. Then, use a first corrugating machine to press a crease on the core layer paper, and then use a second corrugating machine to press the core layer paper with the crease into a wavy shape. Among them, the wave trough of the core layer paper includes a vertical side and an inclined side arranged in sequence from top to bottom.

[0023] S8. Apply glue to the wave peaks of the core layer paper obtained in step S7 using a roller gluing machine.

[0024] S9. Scrape across the wave peaks of the core layer paper obtained in step S8 along the vertical line in the direction of wave travel to control the thickness of the glue on the wave peaks of the core layer paper.

[0025] S10. Flip the bubble wrap processed in step S3 so that the side of the bubble wrap with the bubble bodies faces downward. Use a bonding machine to bond the bottom side of the bubble wrap to the top side of the core layer paper processed in step S9, and then let it cool to harden the glue between the bubble wrap and the core layer paper. Among them, the bubble bodies of the bubble wrap are located in the valleys of the core layer paper;

[0026] S11. First, flip the core layer paper processed in step S10 so that the side of the core layer paper attached with the fiberglass cloth faces upward. Then use a roller gluing machine to apply glue on the valleys of the core layer paper;

[0027] S12. Use a scraper to draw across the valleys of the core layer paper processed in step S11 along the vertical line in the direction of the wave travel to control the thickness of the glue on the valleys of the core layer paper;

[0028] S13. Use a bonding machine to bond two pieces of the core layer paper processed in step S12 together in a rotationally symmetric manner, and then let it cool to harden the glue on the valleys of the core layer paper. Among them, the vertical side of one piece of the core layer paper is frictionally connected to the vertical side of the other piece of the core layer paper.

[0029] Further, the thickness of the glue in steps S2, S5, S9, and S12 is 0.3 mm to 0.5 mm.

[0030] Further, the wave height of the core layer paper in step S7 is 5 mm to 10 mm.

[0031] The beneficial effects of the present invention are as follows:

[0032] During the earthquake resistance process of the corrugated paper of the present invention, the first surface layer paper and the second surface layer paper will continuously perform reciprocating motions of approaching and moving away from each other. When the first surface layer paper and the second surface layer paper approach each other, the first bubble body and the second bubble body are compressed in the vertical direction, and thus expand in the horizontal direction. Then, the first bubble body presses against the first vertical side, and the second bubble body presses against the second vertical side, increasing the frictional force between the first vertical side and the second vertical side. At the same time, since the first vertical side and the second vertical side will perform relative motions driven by the first surface layer paper and the second surface layer paper, the kinetic energy of the first surface layer paper and the second surface layer paper is converted into the heat energy generated by the friction between the first vertical side and the second vertical side, thereby consuming the vibration energy and achieving the purpose of shock absorption.

[0033] In addition, the production process of the present invention is also relatively reasonable and simple. Description of the Drawings

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0035] Figure 1 It is a schematic structural diagram of the shock-absorbing and pressure-resistant corrugated paper of the present invention.

[0036] Explanation of the reference numerals in the drawings:

[0037] The first surface paper 11, the second surface paper 12,

[0038] The first bubble film 21, the second bubble film 22,

[0039] The first bubble body 211, the second bubble body 221,

[0040] The first core layer paper 31, the second core layer paper 32,

[0041] The first vertical edge 311, the first inclined edge 312,

[0042] The second vertical edge 321, the second inclined edge 322,

[0043] The crease 301,

[0044] The first fiberglass cloth 41, the second fiberglass cloth 42. Detailed implementation manners

[0045] The drawings are only for illustrative purposes and should not be construed as a limitation to this patent; for a better illustration of this embodiment, some components in the drawings may be omitted, enlarged or reduced, which do not represent the dimensions of the actual product.

[0046] For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The technical solutions of the present invention will be further described below in conjunction with the drawings and embodiments.

[0047] As shown in the Figure 1 drawings, a kind of shock-absorbing and pressure-resistant corrugated paper includes, from top to bottom in sequence, the first surface paper 11, the first bubble film 21, the first core layer paper 31, and the second core layer paper 32, the second bubble film 22, the second surface paper 12;

[0048] Both the first core layer paper 31 and the second core layer paper 32 are wavy, and the trough of the first core layer paper 31 extends into a pair of peaks of the second core layer paper 32;

[0049] The trough of the first core layer paper 31 includes a first vertical edge 311 and a first inclined edge 312 arranged from top to bottom in sequence;

[0050] The wave crest of the second core layer paper 32 includes a second vertical edge 321 and a second inclined edge 322 arranged in sequence from bottom to top;

[0051] The first vertical edge 311 is frictionally connected to the second vertical edge 321, and creases 301 are provided on both the first inclined edge 312 and the second inclined edge 322;

[0052] A plurality of first air bubbles 211 and second air bubbles 221 are respectively provided on the bottom side of the first air bubble film 21 and the top side of the second air bubble film 22;

[0053] The first air bubbles 211 are located in the troughs of the first core layer paper 31 and are in contact with the first vertical edge 311 and the first inclined edge 312 of the troughs of the first core layer paper 31;

[0054] The second air bubbles 221 are located in the wave crests of the second core layer paper 32 and are in contact with the second vertical edge 321 and the second inclined edge 322 of the wave crests of the second core layer paper 32.

[0055] Preferably, to improve the wear resistance of the first core layer paper 31 and the second core layer paper 32, a first fiberglass cloth 41 is attached to the bottom side of the first core layer paper 31, and a second fiberglass cloth 42 is attached to the top side of the second core layer paper 32.

[0056] Preferably, the first core layer paper 31 and the second core layer paper 32 are rotationally symmetrically arranged.

[0057] A production process of a shock-absorbing and pressure-resistant corrugated paper, the process comprising the following steps:

[0058] S1. Preheat the surface paper using a heating roller, and apply glue to the top side of the surface paper using a roller gluing machine;

[0059] S2. Scrape across the top side of the surface paper processed in step S2 to control the thickness of the glue on the top side of the surface paper;

[0060] S3. Use a bonding machine to bond the pre-prepared air bubble film to the surface paper processed in step S3, and then place it for cooling to harden the glue between the air bubble film and the surface paper. Among them, a plurality of air bubbles are provided on the top side of the air bubble film, the bottom side of the air bubble film is flat, and the bottom side of the air bubble film is bonded to the top side of the surface paper;

[0061] S4. Preheat the core layer paper using a heating roller, and apply glue to the top side of the core layer paper using a roller gluing machine;

[0062] S5. Scrape across the top side of the core layer paper processed in step S4 to control the thickness of the glue on the top side of the core layer paper;

[0063] S6. Use a laminating machine to laminate the pre-prepared fiberglass cloth to the top side of the core paper after being processed in step S5;

[0064] S7. First, turn over the core paper after being processed in step S6 so that the side with the fiberglass cloth attached to the core paper faces downward. Then, use a first corrugating machine to press a crease on the core paper, and then use a second corrugating machine to press the core paper with the crease into a wavy shape. Among them, the troughs of the core paper include a vertical side and an inclined side arranged in sequence from top to bottom;

[0065] S8. Use a roller gluing machine to apply glue on the crests of the core paper obtained in step S7;

[0066] S9. Use a scraper to draw across the crests of the core paper obtained in step S8 along a vertical line in the direction of wave travel to control the thickness of the glue on the crests of the core paper;

[0067] S10. Turn over the bubble film after being processed in step S3 so that the side with the bubble bodies of the bubble film faces downward. Use a laminating machine to laminate the bottom side of the bubble film to the top side of the core paper after being processed in step S9, and then let it cool to harden the glue between the bubble film and the core paper. Among them, the bubble bodies of the bubble film are located in the troughs of the core paper;

[0068] S11. First, turn over the core paper after being processed in step S10 so that the side with the fiberglass cloth attached to the core paper faces upward. Then, use a roller gluing machine to apply glue on the troughs of the core paper;

[0069] S12. Use a scraper to draw across the troughs of the core paper after being processed in step S11 along a vertical line in the direction of wave travel to control the thickness of the glue on the troughs of the core paper;

[0070] S13. Use a laminating machine to laminate two pieces of core paper after being processed in step S12 together in a rotationally symmetric manner, and then let it cool to harden the glue on the troughs of the core paper. Among them, the vertical side of one piece of core paper is frictionally connected to the vertical side of the other piece of core paper.

[0071] Preferably, the thickness of the glue in steps S2, S5, S9, and S12 is 0.3 mm to 0.5 mm.

[0072] Preferably, the wave height of the core paper in step S7 is 5 mm to 10 mm.

[0073] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A shock-absorbing and pressure-resistant corrugated paper, characterized in that, It includes a first surface paper, a first bubble film, a first core paper, a second core paper, a second bubble film, and a second surface paper which are arranged in sequence from top to bottom; Both the first core paper and the second core paper are wavy, and the trough of the first core paper extends between a pair of peaks of the second core paper; The trough of the first core paper includes a first vertical side and a first inclined side which are arranged in sequence from top to bottom; The peak of the second core paper includes a second vertical side and a second inclined side which are arranged in sequence from bottom to top; The first vertical side is frictionally connected to the second vertical side, and creases are provided on both the first inclined side and the second inclined side; A plurality of first air bubbles and second air bubbles are respectively provided on the bottom side of the first bubble film and the top side of the second bubble film; The first air bubbles are located in the trough of the first core paper and are in contact with the first vertical side and the first inclined side of the trough of the first core paper; The second air bubbles are located in the peak of the second core paper and are in contact with the second vertical side and the second inclined side of the peak of the second core paper.

2. The shock-absorbing and pressure-resistant corrugated paper according to claim 1, wherein A first fiberglass cloth is attached to the bottom side of the first core paper, and a second fiberglass cloth is attached to the top side of the second core paper.

3. The shock-absorbing and pressure-resistant corrugated paper according to claim 1, wherein, The first core paper and the second core paper are rotationally symmetrically arranged.

4. A production process of shock-absorbing and pressure-resistant corrugated paper, characterized in that, This process includes the following steps: S1. Preheat the surface paper using a heating roller, and apply glue to the top side of the surface paper using a roller gluing machine; S2. Use a scraper to scrape across the top side of the surface paper processed in step S1 to control the thickness of the glue on the top side of the surface paper; S3. Use a bonding machine to bond the pre-prepared bubble film to the surface paper processed in step S2, and then let it cool to harden the glue between the bubble film and the surface paper. Among them, a plurality of air bubbles are provided on the top side of the bubble film, the bottom side of the bubble film is flat, and the bottom side of the bubble film is bonded to the top side of the surface paper; S4. Preheat the core paper using a heating roller, and apply glue to the top side of the core paper using a roller gluing machine; S5. Use a scraper to scrape across the top side of the core paper processed in step S4 to control the thickness of the glue on the top side of the core paper; S6. Use a bonding machine to bond the pre-prepared fiberglass cloth to the top side of the core paper processed in step S5; S7. First, turn over the core paper processed in step S6 so that the side of the core paper with the fiberglass cloth attached faces down. Then, use a first corrugating machine to press creases on the core paper, and then use a second corrugating machine to press the core paper with creases into a wavy shape. Among them, the trough of the core paper includes a vertical side and an inclined side which are arranged in sequence from top to bottom; S8. Use a roller gluing machine to apply glue to the peak of the core paper obtained in step S7; S9. Use a scraper to scrape across the peak of the core paper obtained in step S8 along the vertical line in the direction of the wave travel to control the thickness of the glue on the peak of the core paper; S10. Turn over the bubble film processed in step S3 so that the side with air bubbles of the bubble film faces down. Use a bonding machine to bond the bottom side of the bubble film to the top side of the core paper processed in step S9, and then let it cool to harden the glue between the bubble film and the core paper. Among them, the air bubbles of the bubble film are located in the trough of the core paper; S11. First, turn over the core layer paper processed in step S10 so that the side of the core layer paper attached with the fiberglass cloth faces upward. Then, use a roller gluing machine to apply glue on the troughs of the core layer paper. S12. Use a scraper to draw across the troughs of the core layer paper processed in step S11 along the vertical line in the direction of the wave travel to control the thickness of the glue on the troughs of the core layer paper. S13. Use a bonding machine to bond two pieces of core layer paper processed in step S12 together in a rotationally symmetric manner. Then, let it stand for cooling to harden the glue on the troughs of the core layer paper. Among them, the vertical side of one piece of core layer paper is frictionally connected to the vertical side of the other piece of core layer paper.

5. The production process of the shock-absorbing and pressure-resistant corrugated paper according to claim 4, characterized in that, The thickness of the glue in steps S2, S5, S9, and S12 is 0.3 mm to 0.5 mm.

6. The production process of the shock-absorbing and pressure-resistant corrugated paper according to claim 4, characterized in that, The wave height of the core layer paper in step S7 is 5 mm to 10 mm.

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