CN112660607A - Multiple buffering bubble membrane is used in article packing transportation - Google Patents
Multiple buffering bubble membrane is used in article packing transportation Download PDFInfo
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Abstract
The invention discloses a multiple buffer bubble film for packaging and transporting articles, which belongs to the field of bubble films, and is characterized in that in the process of transportation, when the multiple buffer bubble film is accidentally impacted, an outer loose bubble layer firstly plays a first role in buffering, when the outer loose bubble layer fails, an inner tight bubble layer continues to play a second role in buffering, when the inner tight bubble layer is accidentally broken again, inert gas in the inner tight bubble layer overflows, the impact force directly acts on an inner hidden self-breaking ball, the hidden self-breaking ball in one side plays a role in buffering again, the hidden self-breaking ball in the other side is extruded and rubbed with a rotary strip, emulsion in the other side overflows, a rubber protective layer is formed at the broken laminated bubble part, the weakening of the protection effect of the articles due to the breakage of the laminated bubbles is effectively compensated, the buffering effect of the bubble film is further improved, compared with the prior art, the protective effect of the protective agent on the goods during transportation is obviously improved, and the risk of damaging the goods is obviously reduced.
Description
Technical Field
The invention relates to the field of bubble films, in particular to a multi-buffer bubble film for packaging and transporting articles.
Background
The bubble film is a product which is formed by using high-pressure polyethylene as a main raw material, adding auxiliary materials such as a whitening agent, an opening agent and the like, and extruding and forming bubbles at a high temperature of about 230 ℃. The plastic packaging material is a novel plastic packaging material with light weight, good transparency, no toxicity and no smell, and can play roles of moisture prevention, buffering, heat preservation and the like on products. Also called bubble pad. Because the air cushion film intermediate layer is full of air, so light, transparent, rich in elasticity, have sound insulation, shockproof, abrasionproof and decrease the performance, widely used in electronics, instruments, pottery, handicraft, household electrical appliances, bicycle, kitchen, furniture and lacquer goods products, glassware and precision instruments etc. shock resistance cushioning packaging. Can be made into bubble bag, bubble kraft paper envelope bag, automobile sun shield, heat insulation cushion, heat insulation material, etc. Various special air cushion films such as antistatic films can be manufactured by adding different additives into plastic raw materials. The antistatic air cushion film is used for packaging electronic elements and components, such as plates, cards and the like, can prevent static electricity and play a role in buffering and preventing vibration.
Current bubble chamber membrane is mostly the individual layer, reaches the effect of buffering through aerifing in a plurality of bellied bubbles, then bellied bubble is because single-layer membrane structure, when using, often can be unexpected to break, leads to taking place local buffering effect variation, and to article transportation, the local bubble chamber membrane of variation of cushioning nature leads to easily existing the dead angle to the protection of article for article exist the risk of being damaged.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a multiple buffer bubble film for packaging and transporting articles, which is characterized in that through the arrangement of double-layer laminated bubbles, when the multiple buffer bubble film is accidentally impacted in the transportation process, an outer loose bubble layer firstly plays a first role in buffering, when the outer loose bubble layer fails, an inner tight bubble layer continues to play a second role in buffering, when the inner tight bubble layer is accidentally ruptured again, inert gas in the inner loose bubble layer overflows, the impact force directly acts on an inner hidden self-breaking ball, the hidden self-breaking ball plays a role in buffering again on one hand, the hidden self-breaking ball and a rotary strip on the other hand squeeze and rub together, latex solution in the inner loose bubble layer overflows, a protective layer is formed at the damaged laminated bubble position, the weakening of the protective effect of the articles due to the damage of the laminated bubbles at the position is effectively compensated, and the buffer effect of the bubble film is further improved, compared with the prior art, the protective effect of the protective agent on the goods during transportation is obviously improved, and the risk of damage to the goods is obviously reduced.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A multi-buffering bubble film for packaging and transporting articles comprises a bubble film body, wherein a plurality of uniformly distributed laminated bubbles are fixedly connected to the upper end and the lower end of the bubble film body, each laminated bubble comprises an outer loose bubble layer positioned on the outer side and an inner tight bubble layer positioned on the inner side, the outer loose bubble layer and the inner tight bubble layer are fixedly connected with the bubble film body, a plurality of groups of inner hidden self-breaking balls are fixedly connected to the outer end of the bubble film body, the inner hidden self-breaking balls are respectively positioned on the inner sides of the laminated bubbles, inert gas is filled in the outer loose bubble layer, the inner tight bubble layer and the inner tight bubble layer, each inner hidden self-breaking ball comprises a double-layer self-breaking ball and a plurality of limiting connecting wires fixedly connected between the double-layer self-breaking ball and the bubble film body, and the outer loose bubble layer firstly plays a first role in buffering when accidental impact is received in the transportation process through the arrangement of the double-layer laminated bubbles, when the outer loose bubble layer fails, the inner tight bubble layer continues to perform a second-level buffering effect, when the inner tight bubble layer is accidentally broken again, inert gas in the inner tight bubble layer overflows, at the moment, the impact force directly acts on the inner hidden self-breaking ball, the hidden self-breaking ball in one side plays a buffering effect again, the hidden self-breaking ball in the other side is extruded and rubbed with the rotary strip, emulsion in the inner tight bubble layer overflows, a glue protection layer is formed at the broken laminated bubble position, the weakening of the protection effect of the position on the article due to the breakage of the laminated bubble is effectively compensated, the buffering effect of the bubble film is further improved, compared with the prior art, the protection effect of the position during article transportation is obviously improved, and the risk of damaging the article is obviously reduced.
Furthermore, the intraformational inert gas of outer loose bubble is unsaturated filling, makes outer loose bubble layer whole be in the state of relative lax, when receiving accidental collision in the transportation, it is after taking place deformation, outer loose bubble layer part is difficult for receiving great pulling force, effectively protect outer loose bubble layer difficult for because of the extrusion breaking, and the filling degree is not less than 75%, make outer loose bubble layer have certain antidetonation buffer capacity equally, make outside impact difficult direct action on including tight bubble layer, thereby effectively protect interior tight bubble layer difficult for being damaged when outer loose bubble layer does not break, thereby effectively guarantee this bubble membrane after outer loose bubble layer breaks, still can play secondary cushioning effect, compare in prior art, show the guard action that improves the bubble membrane to article.
Further, interior intraformational inert gas of tight bubble is the saturation filling, after outer pine bubble layer breaks, makes in tight bubble layer can possess certain cushioning nature equally on the one hand, and on the other hand guarantees the fore-and-aft thickness of this bubble film to the feasible protection effect to article when receiving unexpected striking is better.
Furthermore, the outer loose bubble layer and the inner tight bubble layer are made of elastic materials, the thickness of the inner tight bubble layer is 1.5-2 times that of the outer loose bubble layer, the inner tight bubble layer is located on the inner side, after the outer loose bubble layer fails, the outer loose bubble layer continues to play a secondary buffering role, and due to the thick thickness, the strength of the outer loose bubble layer is higher than that of the outer loose bubble layer, the outer loose bubble layer is not prone to cracking, and therefore the protection effect on articles during transportation is effectively maintained.
Further, the viscose layer is coated on the inner wall of the inner tight bubble layer, the viscose layer is not in contact with the inner hidden self-breaking ball, after the inner tight bubble layer is broken by accident, inert gas in the inner tight bubble layer overflows, the inner tight bubble layer collapses, the inner hidden self-breaking ball is close to and attached to the inner hidden self-breaking ball, when accidental impact happens again, the impact force can act on the inner hidden self-breaking ball, the inner hidden self-breaking ball plays a buffering role again, the buffering effect of the bubble film is further improved, and compared with the prior art, the protective effect of the bubble film during article transportation is remarkably improved.
Further, the double-layer self-breaking ball comprises an inner marble and an outer elastic layer wrapped outside the inner marble, emulsion is filled in a gap between the inner marble and the outer elastic layer, a limiting connecting wire fixedly penetrates through the outer elastic layer and is fixedly connected with the lower end of the inner marble, when impact force directly acts on the inner self-breaking ball, the outer elastic layer continuously rubs with a rotary strip, so that the outer elastic layer is broken, the emulsion inside the outer elastic layer overflows at the moment, and can be solidified and form a rubber protective layer with elasticity under contact with air, and further the thickness of the bubble film body at the broken laminated bubble position is effectively improved, so that the elasticity is better, and the weakening of the protection effect of the position on an article is effectively compensated.
Furthermore, the outer parcel of the tip that spacing even silk is close to the bubble chamber membrane body has the gyration strip, the part that spacing even silk was wrapped up by the gyration strip is not more than half of spacing even silk length, and the gyration strip scope is unlikely to too big for under normal conditions, the interior hidden is difficult for taking place obvious friction with the gyration strip from broken ball, makes the difficult condition that takes place to spill over in advance of its inside emulsion.
Further, spacing even silk and gyration strip are flexible material and make, and the strip of gyration is helical structure, the hardness of the spiral helicine corner of gyration strip is greater than the hardness of other parts of gyration strip, and gyration strip corner is provided with the dull polish layer for when interior hidden from broken ball department atress, when taking place to contact with the strip of gyration, there is great frictional force, and the extraelastic layer of being convenient for is in time broken, thereby is convenient for in time to form of glue protective layer.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the scheme adopts the arrangement of double-layer laminated bubbles, when the automobile is accidentally impacted in the transportation process, the outer loose bubble layer firstly plays a first heavy buffer role, when the outer loose bubble layer fails, the inner tight bubble layer continues to perform the second buffer action, and when the inner tight bubble layer is accidentally broken again, the inert gas in the inner part overflows, at the moment, the impact force directly acts on the inner self-breaking ball, the inner self-breaking ball plays a role in buffering again in one side, the inner self-breaking ball and the rotary strip are extruded and rubbed in the other side, the latex solution inside the bubble film overflows to form a glue protection layer at the damaged laminated bubble, thereby effectively compensating the weakening of the protection effect of the article at the position due to the damage of the laminated bubble, further improving the buffer effect of the bubble film, compared with the prior art, the protective effect of the protective agent on the goods during transportation is obviously improved, and the risk of damaging the goods is obviously reduced.
(2) The intraformational inert gas of outer loose bubble is unsaturated packing, make outer loose bubble layer whole be in the state of relative lax, when receiving accidental collision in the transportation, it is after taking place deformation, outer loose bubble layer part is difficult for receiving great pulling force, it is difficult for because of the extrusion breakage that rises effectively to protect outer loose bubble layer, and the degree of filling is not less than 75%, make outer loose bubble layer have certain antidetonation buffer capacity equally, make outside impact force difficult direct action including on tight bubble layer, thereby it is difficult for being damaged when outer loose bubble layer does not rise the breakage to effectively protect interior tight bubble layer, thereby effectively guarantee this bubble membrane after outer loose bubble layer breaks, still can play secondary cushioning effect, compare in prior art, show the guard action that improves the bubble membrane to article.
(3) Interior tight intraformational inert gas of bubble is filled for the saturation, after outer pine bubble layer breaks, makes interior tight bubble layer can possess certain resiliency equally on the one hand, and on the other hand guarantees the fore-and-aft thickness of this bubble film to the feasible protection effect to article when receiving unexpected striking is better.
(4) The outer loose bubble layer and the inner tight bubble layer are made of elastic materials, the thickness of the inner tight bubble layer is 1.5-2 times that of the outer loose bubble layer, the inner tight bubble layer is located on the inner side, after the outer loose bubble layer loses efficacy, the outer loose bubble layer continues to play a secondary buffering role, the strength of the outer loose bubble layer is higher than that of the outer loose bubble layer due to the thick thickness, the outer loose bubble layer is not prone to rupture, and therefore the protection effect on articles during transportation is effectively maintained.
(5) Interior tight bubble layer inner wall is coated and is equipped with the mucigel, the mucigel is with interior stealthy self-breaking ball contactless, after the same accident of interior tight bubble layer breaks, interior tight bubble layer in situ inert gas overflows, at this moment, interior tight bubble layer sinks, and inwards stealthy self-breaking ball is close to, with interior stealthy self-breaking ball is attached, when accidental striking takes place again this moment, the impact can be acted on the interior stealthy self-breaking ball down, make interior stealthy self-breaking ball play the cushioning effect again, the cushioning effect of this bubble film is further improved, compare in prior art, its guard action when to article transportation, obtain showing the improvement.
(6) The double-deck bullet ball is including interior marble and the outer elastic layer of package bullet ball outside, the space packing between interior marble and the outer elastic layer has emulsion, spacing even silk is fixed runs through the outer elastic layer and with interior marble lower extreme fixed connection, when the impact direct action is on the hidden bullet of self-breaking including, the outer elastic layer constantly rubs with the strip that turns round, thereby make the outer elastic layer break, its inside emulsion overflows this moment, contact with the air and can solidify and form one deck and have elastic gluey protective layer, and then effectively improve the thickness of cracked range upon range of bubble department bubble membrane body, make elasticity better, effectively compensate weakening of the protective effect to article of this department.
(7) The outer parcel of the tip that spacing even silk is close to the bubble chamber membrane body has the gyration strip, and the part that spacing even silk was wrapped up by the gyration strip is not more than half of spacing even silk length, and the gyration strip scope is unlikely to too big for under normal conditions, the interior hidden is difficult for taking place obvious friction with the gyration strip from broken ball, makes the difficult condition that takes place to spill over in advance of its inside emulsion.
(8) Spacing even silk and gyration strip are flexible material and make, and the gyration strip is helical structure, and the hardness of the spiral helicine corner of gyration strip is greater than the hardness of other parts of gyration strip, and gyration strip corner is provided with the dull polish layer for when interior hidden self-breaking ball department atress, when taking place to contact with the gyration strip, there is great frictional force, the extraelastic layer of being convenient for in time breaks, thereby the timely formation of the glue protection layer of being convenient for.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic structural view in partial cross-section of the present invention;
FIG. 3 is a schematic view of the structure of a laminated bubble of the present invention;
FIG. 4 is a schematic structural diagram of the concealed self-breaking ball according to the present invention;
FIG. 5 is a schematic view of the structure of the spacing link of the present invention;
fig. 6 is a schematic view of the flow structure of the laminated bubble of the present invention when it is gradually ruptured from the outside to the inside.
The reference numbers in the figures illustrate:
1 bubble film body, 2 laminated bubbles, 21 outer loose bubble layer, 22 inner tight bubble layer, 3 inner hidden self-breaking ball, 31 double-layer self-breaking ball, 32 limit connecting wire, 311 inner bouncing ball, 312 outer elastic layer, 4 viscose layer and 5 revolving strip.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1, a multiple-buffering bubble film for packaging and transporting articles comprises a bubble film body 1, wherein a plurality of uniformly distributed laminated bubbles 2 are fixedly connected to the upper and lower ends of the bubble film body 1.
Referring to fig. 2-3, the laminated bubble 2 includes an outer loose bubble layer 21 on the outer side and an inner tight bubble layer 22 on the inner side, the outer loose bubble layer 21 and the inner tight bubble layer 22 are made of elastic materials, and the thickness of the inner tight bubble layer 22 is 1.5-2 times of the thickness of the outer loose bubble layer 21, the inner tight bubble layer 22 is positioned at the inner side, after the outer loose bubble layer 21 fails, the secondary buffer function is continuously realized, the strength of the air cushion is higher than that of the outer loose bubble layer 21 due to the thicker thickness, the air cushion is not easy to break, therefore, the protection effect on articles during transportation is effectively maintained, the outer loose bubble layer 21 and the inner tight bubble layer 22 are fixedly connected with the bubble film body 1, the outer end of the bubble film body 1 is fixedly connected with a plurality of groups of inner hidden self-breaking balls 3, the plurality of groups of inner hidden self-breaking balls 3 are respectively positioned on the inner sides of the plurality of laminated bubbles 2, and inert gases are filled in the outer loose bubble layer 21, the inner tight bubble layer 22 and the inner tight bubble layer 22;
the inert gas in the outer loose bubble layer 21 is filled in an unsaturated mode, so that the whole outer loose bubble layer 21 is in a relatively loose state, when the outer loose bubble layer 21 is accidentally collided in the transportation process, after the outer loose bubble layer 21 is deformed, the local outer loose bubble layer 21 is not easily subjected to a large pulling force, the outer loose bubble layer 21 is effectively protected from being broken by extrusion, the filling degree is not lower than 75%, the outer loose bubble layer 21 also has certain anti-seismic buffering capacity, the external impact force is not easily and directly acted on the inner tight bubble layer 22, the inner tight bubble layer 22 is effectively protected from being damaged when the outer loose bubble layer 21 is not broken by expansion, the bubble film can still play a secondary buffering role after the outer loose bubble layer 21 is broken, compared with the prior art, the protection effect of the bubble film on articles is obviously improved, the inert gas in the inner tight bubble layer 22 is filled in a saturated mode, after the outer loose bubble layer 21 is broken, on one hand, the inner tight bubble layer 22 can also have certain buffering performance, and on the other hand, the longitudinal thickness of the bubble film is ensured, so that the protection effect on articles is better when the articles are accidentally impacted; the viscose layer 4 is coated on the inner wall of the inner tight bubble layer 22, the viscose layer 4 is not in contact with the inner hidden self-breaking ball 3, after the inner tight bubble layer 22 is also broken accidentally, inert gas in the inner tight bubble layer 22 overflows, the inner tight bubble layer 22 collapses at the moment, the inner hidden self-breaking ball 3 is close to the inner hidden self-breaking ball 3 and is attached to the inner hidden self-breaking ball 3, when accidental impact happens again, the impact force can act on the inner hidden self-breaking ball 3, the inner hidden self-breaking ball 3 plays a buffering role again, the buffering effect of the bubble film is further improved, and compared with the prior art, the bubble film has the protection effect during article transportation, and is remarkably improved.
Referring to fig. 3-4, the hidden self-breaking ball 3 includes a double-layer self-breaking ball 31 and a plurality of limiting connecting wires 32 fixedly connected between the double-layer self-breaking ball 31 and the bubble membrane body 1, the double-layer self-breaking ball 31 includes an inner marble 311 and an outer elastic layer 312 wrapped outside the inner marble 311, a gap between the inner marble 311 and the outer elastic layer 312 is filled with emulsion, the limiting connecting wires 32 fixedly penetrate through the outer elastic layer 312 and are fixedly connected with the lower end of the inner marble 311, when the impact force directly acts on the inner self-breaking ball 3, the outer elastic layer 312 continuously rubs against the revolving strip 5, so that the outer elastic layer 312 is broken, and the latex solution therein overflows to be solidified and form an elastic protective layer when contacting with air, and then effectively improve the thickness of the bubble membrane body 1 of the cracked laminated bubble 2 department for elasticity is better, effectively compensates the weakening of the protection effect to the article of here.
Referring to fig. 5, the end of the limiting connecting wire 32 close to the bubble film body 1 is wrapped by a rotating strip 5, the portion of the limiting connecting wire 32 wrapped by the rotating strip 5 is not more than half of the length of the limiting connecting wire 32, the range of the rotating strip 5 is not too large, so that under normal conditions, the internal self-breaking ball 3 is not easy to generate obvious friction with the rotating strip 5, and emulsion inside the internal self-breaking ball is not easy to overflow in advance, the limiting connecting wire 32 and the rotating strip 5 are made of flexible materials, the rotating strip 5 is of a spiral structure, the hardness of the spiral corner of the rotating strip 5 is higher than that of other portions of the rotating strip 5, and the corner of the rotating strip 5 is provided with a frosting layer, so that when the internal self-breaking ball 3 is stressed and is in contact with the rotating strip 5, a higher friction force exists, and the external elastic layer 312 is convenient to break in time, thereby facilitating the formation of the protective layer in.
Through the arrangement of the double-layer laminated bubbles 2, in the transportation process, please refer to fig. 6, when an accidental impact is received, the outer loose bubble layer 21 firstly plays a first heavy buffer role, when the outer loose bubble layer 21 fails, the inner tight bubble layer 22 continues to perform a second heavy buffer role, when the inner tight bubble layer 22 is accidentally broken again, the inert gas in the inner loose bubble layer overflows, at the moment, the impact force directly acts on the inner hidden self-breaking ball 3, on the one hand, the hidden self-breaking ball 3 plays a buffer role again, on the other hand, the hidden self-breaking ball 3 and the revolution strip 5 are extruded and rubbed, the latex solution in the inner loose, and the latex solution in the inner loose forms a latex layer at the damaged laminated bubbles 2, so as to effectively compensate the weakening of the protection effect of the article due to the damage of the laminated bubbles 2 at the position, further improve the buffer role of the bubble film, compared with the prior art, the protection effect of the article during transportation is realized, the method is obviously improved, and the risk of damaging the article is obviously reduced.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
Claims (8)
1. The utility model provides a multiple buffering bubble membrane is used in article packing transportation, includes bubble membrane body (1), the range upon range of bubble (2) of a plurality of evenly distributed of equal fixedly connected with in both ends about bubble membrane body (1), its characterized in that: range upon range of bubble (2) including the tight bubble layer (22) in outer loose bubble layer (21) that is located the outside and is located the inboard, outer loose bubble layer (21) and tight bubble layer (22) in all with bubble chamber film body (1) fixed connection, bubble chamber film body (1) outer end fixedly connected with multiunit is hidden from breaking ball (3), the multiunit the ball (3) are located a plurality of range upon range of bubbles (2) inboards respectively from breaking in the hiding, outer loose bubble layer (21) and tight bubble layer (22) in and tight bubble layer (22) are inside all filled with inert gas, the hidden is broken ball (3) including the bilayer is broken ball (31) certainly and a plurality of fixed connection spacing connecting wire (32) between ball (31) and bubble chamber film body (1) are broken from the bilayer.
2. The multiple buffer bubble film for packaging and transporting articles according to claim 1, wherein: the inert gas in the outer loose bubble layer (21) is filled in an unsaturated mode, and the filling degree is not lower than 75%.
3. The multiple buffer bubble film for packaging and transporting articles as claimed in claim 2, wherein: the inert gas in the inner tight bubble layer (22) is filled in a saturated mode.
4. The multiple buffer bubble film for packaging and transporting articles according to claim 1, wherein: the outer loose bubble layer (21) and the inner tight bubble layer (22) are both made of elastic materials, and the thickness of the inner tight bubble layer (22) is 1.5-2 times that of the outer loose bubble layer (21).
5. The multiple buffer bubble film for packaging and transporting articles according to claim 1, wherein: the inner wall of the inner tight air bubble layer (22) is coated with a viscose layer (4), and the viscose layer (4) is not in contact with the inner hidden self-breaking ball (3).
6. The multiple buffer bubble film for packaging and transporting articles according to claim 1, wherein: the double-layer self-breaking ball (31) comprises an inner marble (311) and an outer elastic layer (312) wrapped outside the inner marble (311), a gap between the inner marble (311) and the outer elastic layer (312) is filled with latex, and a limiting connecting wire (32) fixedly penetrates through the outer elastic layer (312) and is fixedly connected with the lower end of the inner marble (311).
7. The multiple buffer bubble film for packaging and transporting articles according to claim 6, wherein: the end part, close to the air bubble film body (1), of the limiting connecting wire (32) is wrapped by the rotary strip (5), and the part, wrapped by the rotary strip (5), of the limiting connecting wire (32) is not larger than half of the length of the limiting connecting wire (32).
8. The multiple buffer bubble film for packaging and transporting articles according to claim 7, wherein: spacing even silk (32) and gyration strip (5) are flexible material and make, and gyration strip (5) are helical structure, the hardness of gyration strip (5) spiral helicine corner is big than the hardness of gyration strip (5) other parts, and gyration strip (5) corner is provided with the dull polish layer.
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| CN114150767A (en) * | 2021-11-03 | 2022-03-08 | 田定华 | Primary and secondary self-locking type steel rod structure connecting piece |
| CN114150767B (en) * | 2021-11-03 | 2023-12-08 | 天津市港丰建筑安装工程有限公司 | Primary and secondary self-locking steel rod structure connecting piece |
| CN115837776A (en) * | 2022-11-02 | 2023-03-24 | 扬州斯帕克实业有限公司 | Self-cleaning membrane material with inflated inside and punching manufacturing equipment thereof |
| CN115837776B (en) * | 2022-11-02 | 2023-08-18 | 扬州斯帕克实业有限公司 | Self-cleaning membrane material with internal inflation and punching manufacturing equipment thereof |
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Application publication date: 20210416 |