WO2021227738A1 - Nouveau sac de calage longue durée à colonnes d'air - Google Patents

Nouveau sac de calage longue durée à colonnes d'air Download PDF

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Publication number
WO2021227738A1
WO2021227738A1 PCT/CN2021/086541 CN2021086541W WO2021227738A1 WO 2021227738 A1 WO2021227738 A1 WO 2021227738A1 CN 2021086541 W CN2021086541 W CN 2021086541W WO 2021227738 A1 WO2021227738 A1 WO 2021227738A1
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WIPO (PCT)
Prior art keywords
air
heat
film
film body
gas
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PCT/CN2021/086541
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English (en)
Chinese (zh)
Inventor
朱远富
李建
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重庆新瑞丽包装印务有限公司
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Publication of WO2021227738A1 publication Critical patent/WO2021227738A1/fr

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    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
    • B65D81/051—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using pillow-like elements filled with cushioning material, e.g. elastic foam, fabric
    • B65D81/052—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using pillow-like elements filled with cushioning material, e.g. elastic foam, fabric filled with fluid, e.g. inflatable elements

Definitions

  • the invention relates to the technical field of packaging and transportation, in particular to a new type of long-acting cushioning air column bag.
  • Air column bags are common packaging supplies and are widely used in the packaging and transportation industry.
  • the traditional cushioning air column bag uses two layers of co-extruded film, as a whole air column bag, two valve films are set in it.
  • the valve film is made of 70-90mm wide and 3.8 silk thick pure PE material, and This material is printed with white high temperature resistant ink of about 10*30mm as the air valve, and its function is that the white ink air valve is not heat-sealed and connected when the 4 layers of film are heat-sealed, thereby leaving a channel as the cylinder air inlet; in white, high temperature resistant
  • the opening point of this valve is in the middle of the valve membrane in the high-temperature ink area, its shape is small, it is difficult to find and open it after the airflow in the main airway enters, which makes it difficult for gas to enter the cylinder; at the same time, it is difficult to enter the cylinder during production.
  • the opening point of the air valve is also very easy to run out of the white high-temperature ink air valve range, so that the cylinder cannot enter the air.
  • the purpose of the present invention is to provide a new type of long-acting buffer air column bag, which can increase the air intake speed and air retention time, and can reduce the loss and defect rate caused by production.
  • the present invention provides a new long-lasting cushioning air column bag, including a film body, the film body includes at least two outer films and at least two inner films, the at least two outer films and the The at least two inner membranes are formed with an inflatable channel arranged on the upper part of the membrane body for external air to fill the membrane body, and the lower part of the membrane body is provided with a plurality of inflatable channels.
  • the passage communicates with a gas storage chamber used to form a gas column when gas enters.
  • it also includes a number of one-to-one corresponding to the air storage chamber, for the gas in the inflation channel to flow to correspond to the air storage chamber and can adjust the speed and impact of the air flow to prevent damage to the membrane The cushion airway of the layer body.
  • the buffer air passage includes at least one curved air flow passage.
  • the buffer air passage is formed by heat-sealing the film body with a first predetermined mold
  • the air storage chamber is formed by heat-sealing the film body with a second predetermined mold
  • the The inflatable channel is formed by thermally bonding the second predetermined mold and the third predetermined mold with the film body.
  • the film body is further provided with two pieces respectively located on both sides of the inflatable channel, used to make the air nozzle or the gun head and the inflator when the air nozzle or the gun head is inflated into the inflatable channel.
  • the airway easy to open line that connects quickly and accurately.
  • the film body is provided with a first outer film, the first inner film, the second inner film, and the second outer film at the upper end of the inflatable channel.
  • the film body is provided with two second heat-sealing lines located at the lower end of the inflatable duct.
  • One of the second heat-sealing lines is used to connect the first outer film on the first side of the film body It is heat-sealed and connected to the first inner film, and another second heat-sealing line is used to heat-seal and connect the second inner film and the second outer film on the second side of the film body.
  • the film body is further provided with:
  • the buffer air passage corresponds to the third heat sealing line of the connected air inlet one by one;
  • any of the fourth heat-sealing lines and the third heat-sealing line corresponding to it is provided for adjusting the inlet speed and inlet pressure of the buffer air passage to prevent the gas from damaging the The air column shoulders of the first inner membrane and the second inner membrane.
  • an airway closing line for closing the airway is provided at one end of the inflation channel away from the air inlet.
  • both the first inner film and the second inner film are provided with a sealing coating for preventing gas leakage when the first inner film and the second inner film are attached.
  • the present invention designs a new type of long-lasting cushioning air column bag according to the different requirements of packaging and transportation. Because the traditional cushioning air column bag with a valve film has short air retention time and the valve point is difficult to open This leads to disadvantages such as slow air intake speed, large production loss and high defect rate. Therefore, it is very useful to use a new type of long-lasting cushion air column bag with a long air retention time, fast air intake speed, production loss and low defect rate airless valve film. necessary.
  • the above-mentioned new long-acting cushioning air column bag includes a film body, which includes at least two outer films and at least two inner films, at least two outer films and at least two inner films are formed with inflatable channels, The channel is arranged on the upper part of the membrane body, and the gas-filled channel is used to fill the membrane body with external air; further, the membrane body is provided with several gas storage chambers, and all the gas storage chambers are arranged in the lower part of the membrane body and are connected with each other. The gas filling passage is connected, and the gas storage chamber is used for gas filling to form a gas column.
  • the above-mentioned inflatable passage is arranged through at least two outer membranes and at least two inner membranes, and the air storage chamber is connected to the inflatable passage, which can greatly increase the air retention time of the cushion air column bag and make the product better and better quality. more reliable.
  • the new long-lasting buffer air column bag provided by this application has good heat sealing effect, strong air tightness, and long air retention time, which can avoid the increase in cost due to the installation of the air valve membrane, and at the same time Avoiding the positioning requirements of the valve film and the opening point during heat sealing in the traditional manufacturing process, which can greatly improve the consistency and stability of product quality, reduce the scrap rate, improve production efficiency and reduce comprehensive manufacturing costs.
  • Figure 1 is a schematic diagram of the overall structure of a new type of long-acting cushioning air column bag disclosed in an embodiment of the present invention
  • Figure 2 is a schematic diagram of the gas flow of a single gas column before inflation
  • Figure 3 is a schematic diagram of the lateral cross-section of the new long-acting cushioning air column bag after inflation.
  • the core of the present invention is to provide a new type of long-acting buffer air column bag, which can increase the air intake speed and air retention time, and can reduce the loss and defect rate caused by production.
  • Figure 1 is a schematic diagram of the overall structure of a new long-lasting cushioning air column bag disclosed in an embodiment of the present invention
  • Figure 2 is a schematic diagram of the gas flow of a single air column before inflation
  • Figure 3 is a new long-lasting air column after inflation
  • the arrow directions in Fig. 1 and Fig. 2 are the gas flow directions in each air passage.
  • the new long-lasting cushioning air column bag provided by the embodiment of the present invention includes a film body, the film body includes at least two outer films and at least two inner films, and at least two outer films and at least two inner films are formed with inflatable Channel 5, the membrane body is also provided with several air storage chambers 8 connected to the inflatable channel 5.
  • the outer membrane and inner membrane of the membrane body can be arranged in two or more layers, for ease of description In the following specific embodiments, the arrangement of two outer membranes and two inner membranes is used as an example to illustrate in detail.
  • the inflatable channel 5 is provided on the upper part of the membrane body.
  • the inflatable channel 5 is formed by two outer membranes and two inner membranes.
  • the inflatable channel 5 is used to fill the membrane body with external air.
  • the width of the inflatable channel 5 16-20mm;
  • gas storage chambers 8 are located in the lower part of the membrane body and communicate with the inflation channel 5.
  • the gas storage chambers 8 are used to fill gas to form a gas column.
  • the number of gas storage chambers 8 can be adjusted as required , This article does not make specific restrictions on this.
  • the above-mentioned inflatable passage is arranged by two layers of outer membrane and two layers of inner membrane, and the air storage chamber is connected with the inflatable passage, which can greatly improve the air retention time of the cushion air column bag, and make the product better in air-holding effect and more reliable in quality.
  • the new long-acting cushion air column bag can also be provided with several cushion air passages 7, and several cushion air passages 7 are arranged in one-to-one correspondence with the air storage chamber 8, and the cushion air passage 7 is used for the inflatable passage 5.
  • the gas flows to the corresponding gas storage chamber 8.
  • the buffer gas channel 7 can adjust the speed and impact force of the gas flow to prevent the gas from damaging the film body.
  • the upper part of the air column is composed of four layers of co-extruded film at a position of about 70-100 mm, and the lower part is composed of two layers of co-extruded film.
  • the inflation passage 5 is arranged in the transverse direction (the horizontal direction shown in FIG. 1), and the buffer air passage 7 and the air storage chamber 8 are both arranged in the longitudinal direction (vertical to the transverse direction).
  • the buffer air passage 7 can be configured to include at least one curved air flow channel, which can be configured as a zigzag air flow channel and/or an air flow channel with an arc-shaped inner wall, for example, the buffer air channel 7 can be provided It is an air channel formed by multiple S-shaped air flow channels connected in series up and down.
  • the S-shaped airflow channel has an arc-shaped contact surface, and the zigzag airflow channel has a zigzag contact surface. When the gas flows along the channel, the arc-shaped contact surface or the zigzag contact surface can reduce the speed and impact of the airflow to prevent the gas Damage the film.
  • the buffer air passage 7 can also be configured to be formed by connecting multiple sections of air flow passages of other shapes up and down in series, and any section of the air flow passage may have a figure eight shape, a smiley face shape or other special curved structures, which is not specifically limited herein.
  • the buffer air passage 7 is formed by heat bonding with the film body by a first preset mold
  • the air storage chamber 8 is formed by heat bonding with the film body by a second preset mold
  • the inflatable channel 5 is formed by heat bonding between the second preset mold and the third preset mold.
  • the mold and the film body are formed by heat bonding.
  • the above-mentioned new long-acting cushion air column bag through the arrangement of the inner and outer multilayer films, on the one hand, can greatly increase the air retention time, on the other hand, it can make the gas flow directly from the inflatable channel 5 to the buffer air channel 7 and pass through
  • the buffer air passage 7 flows to the air storage chamber 8 after buffering, which can increase the air inlet speed to improve the inflation efficiency.
  • the setting of the buffer air passage 7 can slow down the air inlet speed and return speed of the gas in the air column and reduce the gas's impact on the film.
  • the impact force of the body can reduce the damage to the film, make the product quality more reliable, and the air-holding effect is better.
  • the above-mentioned buffer air passage 7 can be formed only by heat-sealing the film body with the first predetermined mold
  • the air storage chamber 8 can be formed by heat-sealing the film body with the second predetermined mold
  • the air-filling channel 5 can be formed by the second predetermined mold and the film body.
  • the mold and the third preset mold can be formed by heat-sealing with the film layer body, and the processing process is simple in operation, low in loss, and low in cost.
  • the new long-lasting buffer air column bag provided by this application has good heat sealing effect, strong air tightness, and long air retention time, which can avoid the increase in cost due to the installation of the air valve membrane, and at the same time Avoiding the positioning requirements of the valve film and the opening point during heat sealing in the traditional manufacturing process, which can greatly improve the consistency and stability of product quality, reduce the scrap rate, improve production efficiency and reduce comprehensive manufacturing costs.
  • the above-mentioned film body may be specifically configured to include a first outer film 1, a first inner film 2, a second inner film 3, and a second inner film sequentially arranged from the first side to the second side of the film body.
  • both the first outer film 1 and the second outer film 4 can be set as a co-extruded film combining PE and PA (PA in the middle and PE on the surface), wherein PE plays the role of heat sealing and adhesion, and PA can To block air molecules and prevent stretching;
  • the first inner film 2 and the second inner film 3 can be specifically set as a co-extruded film combining PE, PA and EVOH.
  • Both the first inner film 2 and the second inner film 3 can be set as a single-layer 30um thick 5-layer symmetrical structure co-extruded film, the 5-layer structure is respectively PE/PA/EVOH/PA/PE, the structure of this raw material has High oxygen barrier performance, its performance is about 30 times that of the original PE material, and the air permeability of the air column for one year is below 5% (the traditional air column has an annual air permeability of more than 30%).
  • the first inner film 2 and the second inner film 3 can also undergo a special coating treatment.
  • a sealing coating can be provided on the first inner film 2 and the second inner film 3 so that the two can adhere to each other. Absolutely flat and higher viscosity, so that it fits more closely. In this way, the possibility of gas leakage from the middle two membranes in the gas column is almost zero, so that the gas column can hold longer.
  • the above-mentioned buffer air passage 7 can be formed by heat-sealing the first outer membrane 1, the first inner membrane 2 and the second inner membrane 3 through the first preset mold;
  • the air storage chamber 8 is formed by the second preset mold The first outer film 1, the first inner film 2, the second inner film 3, and the second outer film 4 are formed by heat bonding.
  • the air storage chamber 8 can be arranged in a cylindrical structure; the upper end of the inflatable channel 5 passes through a second preset mold The first outer film 1, the first inner film 2, the second inner film 3, and the second outer film 4 are heat-sealed to form a first heat-sealing line 101.
  • An outer film 1, a first inner film 2, a second inner film 3, and a second outer film 4 are thermally connected to form two second heat-sealing lines 102.
  • the film body is provided with a first heat-sealing line 101 located at the upper end of the inflatable duct 5, and the first heat-sealing line 101 is used to connect the first outer film 1, the first inner film 2, the second inner film 3, and
  • the second outer film 4 is heat-sealed and connected;
  • the film body is provided with two second heat-sealing lines 102 located at the lower end of the inflatable channel 5.
  • the outer film 1 and the first inner film 2 are heat-sealed and connected, and another second heat-sealing line 102 is used to heat-seal and connect the second inner film 3 and the second outer film 4 on the second side of the film body.
  • the film body is also provided with a number of third heat-sealing lines 103 and fourth heat-sealing lines 104, wherein the third heat-sealing line 103 is arranged in parallel with the first heat-sealing line 101, and the third heat-sealing line 103 is used for
  • the first outer membrane 1, the first inner membrane 2, the second inner membrane 3, and the second outer membrane 4 are heat-sealed and connected to form an air inlet 6 communicating with the buffer air passage 7 in a one-to-one correspondence;
  • the heat-sealing line 104 is arranged in the longitudinal direction and overlaps the third heat-sealing line 103 one-to-one.
  • the fourth heat-sealing line 104 is used to connect the first outer film 1, the first inner film 2, the second inner film 3, and the second The outer film 4 is heat-sealed and connected to form an air storage chamber 8.
  • first heat-sealing line 101, the second heat-sealing line 102, the third heat-sealing line 103, and the fourth heat-sealing line 104 are all formed by heat-sealing the corresponding mold and the corresponding film layer.
  • the distance between any two adjacent third heat-sealing lines 103 can be set to be equal, and the distance between any two adjacent fourth heat-sealing lines 104 can be set to be equal.
  • the distance between any two adjacent third heat-sealing lines 103 can be set to about 7mm, and both ends of the third heat-sealing line 103 are set to be arc-shaped to reduce the speed and pressure of the gas; when a four-layer film After being heat-sealed by the second preset mold, a gap is formed between any two adjacent third heat-sealing lines 103. The gap is not heat-sealed, so a cylindrical air inlet 6 is formed through which gas will enter Cylinder.
  • the distance between the third heat-sealing line 103 and the fourth heat-sealing line 104 can be adjusted according to the size of the column diameter.
  • the film body is also provided with two airway easy opening lines 105 located on both sides of the inflatable channel 5, and any airway easy opening line 105 is provided on the second heat sealing line 102 and on the same side. Between the first heat-sealing lines 101, when the inflation channel 5 is inflated, the air channel easy opening line 105 can quickly and accurately connect the gas nozzle or gun tip to the inflation channel 5, so that the gas nozzle or gun tip can accurately find the inflation during inflation Road 5.
  • the airway easy opening line 105 located on the first side of the film body is used to heat-seal and connect the first outer membrane 1 and the first inner film 2, and the airway easy opening line 105 located on the second side of the film body
  • the second inner film 3 and the second outer film 4 are heat-sealed and connected.
  • the number of the above-mentioned airway easy opening lines 105 can also be set to more than two.
  • This article does not specifically limit the number of airway easy opening lines 105; the airway easy opening lines located on both sides of the inflation channel 5 105 can be set symmetrically.
  • the airway easy opening line 105 can also be designed with other sizes, styles or multiple lines that can play the same role, for example, it can be set as a straight line, a broken line, or other structures.
  • any of the above-mentioned fourth heat-sealing lines 104 and the corresponding third heat-sealing line 103 is also provided for adjusting the inlet speed and inlet pressure of the buffer air passage 7 to prevent
  • the gas damages the air column shoulder 108 of the first inner membrane 2 and the second inner membrane 3, and the outer wall of the air column shoulder 108 may be set in a circular arc structure.
  • This design aims to reduce the air intake and air pressure of the cylinder air inlet 6 to protect the weak inner membrane of the air inlet 6 from being torn and damaged.
  • the shape of the air column shoulder 108 can be trapezoidal, rectangular, figure eight, etc., and the size can also be adjusted according to the size of the column.
  • the end of the inflation passage 5 away from the air inlet 6 may also be provided with an air passage closing line 106 for closing the inflation passage 5, which functions to close the main air passage, thereby preventing the air storage chamber 8 from being caused by gas convection during inflation. No air intake.
  • the line width and shape of the airway closure line 106 can be adjusted accordingly.
  • the new long-lasting cushioning air column bag can also have other different arrangements.
  • air column protrusions 109 can also be arranged on each third heat sealing line 103, and the air column protrusions 109 can be set in a circular arc shape.
  • the air column protrusions 109 which are used to increase the air intake speed and reduce the gas backflow speed; in order to prevent gas from entering the edge air column, a fourth heat-sealing line 104 may be provided at both ends of the film body.
  • the side sealing line 107 connected to the outer side wall of the, the side sealing line 107 is arranged in parallel with the first heat sealing line 101 and the third heat sealing line 103.
  • a 9mm square environmental protection label can also be printed on the inflatable channel 5.
  • the environmental protection label with the same distance from the air inlet 6 is printed on the surface of the second inner membrane 3, which plays an effective role in publicity.
  • everyone is more environmentally conscious; in this way, high-precision infrared photoelectric recognizers can be configured on related production equipment to identify environmental protection signs, which can make the column consistency stronger, the defective rate and the rejection rate are lower, and the products are more vibrant .
  • the content, size, shape, color, printing position, etc. of the logo can be adjusted according to different needs.
  • the above-mentioned first preset mold can be specifically set as a mold with a preset heat-sealing pattern, the length of the mold is about 50mm, and the preset heat-sealing pattern can be designed as a figure eight, a smiley face and a special curve as needed. One or more types, etc.
  • the air nozzle of the equipment blows open the air passage
  • the air nozzle enters the inflatable passage 5.
  • the gas enters the cylinder along the setting direction of the inflatable passage 5, so that the inflatable passage 5 and the column
  • the body air inlet 6 is straight, so that the air intake is unobstructed, the speed is faster, and the stability is stronger.
  • the current use of industrial buffer air cylinder bags with white high temperature resistant ink air valves has a defect rate of about 3%-8%, which is mainly manifested in the cylinder body cannot enter about 1%, and the first preset mold shape
  • the position of the valve sleeve is not correct by about 2%, the valve point is offset by about 2%, and the two sides of the white high temperature ink of the valve are not pressed tightly and are torn by about 3% after being inflated, of which about 50% of the defective air column can be repaired.
  • the repair time of a single defective single person is about 3-5 minutes. According to the usual calculation of 2000 inflation per person per day, the repair time of defective products needs to be about 8 hours per person. Therefore, the traditional air column is very costly and wasteful after detailed calculation. Big.
  • the use of the new long-acting buffer air column bag provided by the present application can reduce the batch defect rate to less than 0.5%, saving manufacturing and use costs and about 10 times the repair time.

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

Abstract

Un nouveau sac de calage longue durée à colonnes d'air, comprenant un corps en couches membranaires, qui comprend au moins deux couches de membranes externes et au moins deux couches de membranes internes ; un canal d'admission d'air (5), qui est formé dans la partie supérieure du corps en couches membranaires et est destiné à permettre au corps en couches membranaires d'être rempli d'air extérieur, est formé dans lesdites deux couches de membranes externes et lesdites deux couches de membranes internes ; et une pluralité de chambres de stockage d'air (8), qui sont en communication avec le canal d'admission d'air (5) et destinées à former des colonnes d'air lorsque l'air entre, sont disposées sur la partie inférieure du corps en couches membranaires.
PCT/CN2021/086541 2020-05-12 2021-04-12 Nouveau sac de calage longue durée à colonnes d'air WO2021227738A1 (fr)

Applications Claiming Priority (2)

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CN202010395207.9 2020-05-12
CN202010395207.9A CN111439483A (zh) 2020-05-12 2020-05-12 一种新型长效缓冲气柱袋

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WO2021227738A1 true WO2021227738A1 (fr) 2021-11-18

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CN111439483A (zh) * 2020-05-12 2020-07-24 重庆新瑞丽包装印务有限公司 一种新型长效缓冲气柱袋
CN113043666A (zh) * 2021-04-02 2021-06-29 瑞安市胜利印刷机械有限公司 无印刷气阀气柱袋成型工艺
CN113428506A (zh) * 2021-07-23 2021-09-24 广州派卫格包装材料实业有限公司 一种多重气道包装气囊

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