KR100951795B1 - The method of preparing shock-abosrbing packing material consist of multi-tube - Google Patents

Abstract

Any one of the two valve films for forming the air inlet of the conventional independent tube in the manufacture of a buffer packaging material formed of a plurality of independent tube groups by thermal bonding in a state in which the valve forming film is inserted between the tube forming upper and lower packaging films. The non-adhesive surface is formed by using a thin plate band fixed to the device without printing the release surface used on the inner side of the air inlet to form the air inlet completely without any defects. It can be omitted and the advantage that does not use expensive release material and since the independent tube is formed in a circular or oval shape, the internal pressure is uniformly distributed compared to the conventional rectangular independent tube, so that the pressure resistance can be largely formed. It relates to a buffer packaging material formed and a method of manufacturing the same.

Description

Buffer packaging material formed by tube group and manufacturing method thereof {THE METHOD OF PREPARING SHOCK-ABOSRBING PACKING MATERIAL CONSIST OF MULTI-TUBE}

The present invention relates to a buffer packaging material composed of a group of tubes filled with a gas, and a method for manufacturing the same, and specifically, between a tube forming upper and lower packaging films of one of thermoplastic resins selected from polyamide, polyester, and polypropylene. In the air inlet of a conventional independent tube in the manufacture of a buffer packaging material formed of a plurality of independent tube groups by thermal bonding in the state of inserting two valve-forming films made of thermoplastic synthetic resin material having excellent heat adhesiveness and valve formation The gas inlet can be completely formed without defect by forming a gas inlet by having a non-adhesive surface using a thin plate band fixed to the apparatus without printing the release surface used on either inner side of two valve films for forming. Conventional rectangular tube by forming an independent tube in a circular or oval shape Since the internal pressure is uniformly distributed as compared standing largely formed in a tube bank to improve cushioning packaging material and the pressure resistance relates to a method of manufacturing the same.

Styrofoam packaging material, which is well known as a conventional packaging material, is an integrated packaging material in which a mold is manufactured according to the shape of the package and foamed EPS (expanded poly styrene) is used as the mold. Because it needs to be manufactured again, it can be called a packaging material without general purpose, and because of its large volume, there is a problem in disposal after use.

As another conventional packaging material, there is a packaging material in which numerous hemispherical or disc-shaped air bags are formed on a synthetic resin film sheet, but since the packaging material is formed by vacuum molding with a soft film such as two sheets of polyethylene, air in a hemispherical or disc-type air bag is used. Its low density (pressure) reduces its buffering effect. It is an irregular packaging method that wraps and wraps several layers on the packaged material. It is a packaging material mainly used for cheap products.

As another packaging material, a transparent case for safety packaging is introduced in the Korean Utility Model Registration Publication (Registration No. 20-0386484). As a technical configuration, two transparent plastic containers with a rim on the upper side are connected symmetrically with a hinge (connection member fitting) at the rim of the upper layer, and a synthetic resin film is attached to each rim to cover each container entrance with a film. Packaged case is placed in the center of the film covered with transparent plastic container on one side and rotated through the synthetic resin hinge on the other side and fixed with a connecting member to be matched. While being suspended in the space in which the upper and lower transparent synthetic resin containers are formed, the package is a configuration of the packaging material to be protected from external impact. In addition, as a similar conventional packaging material, "article holding district and article holding structure" of Japanese Patent Laid-Open No. 2003-26241 is disclosed, and the Korean Registered Utility Model Publication (Registration No. 20-0385911) describes a combination packing box for display. "Is disclosed. The packaging box or the packaging method of the above is a pair of box openings with elastic films, respectively, and the upper and lower stretchable films contacted by symmetrically bonding the box openings with the elastic film and symmetrically bonding the box openings. It is a method of protecting the package from external shocks by inserting the package between the elastic sheets) and suspending the package in the space formed by the upper and lower packaging cases. Since such a packaging case is a packaging method using an elastic stretchable film, the flexible thin film has a limitation in tensile strength and thus cannot be used for a package under high load.

Besides this, there is a related art related to the air-operated cushioning packaging material belonging to the same field as the patent application.

As an example, in the Korean Utility Model Utility Publication (Registration No. 20-0368881), a technology related to "air injection buffer packaging material" is introduced. As described in the above publication, the method of manufacturing such an air-injected cushioning material is

As shown in FIG. 1, the configuration of the present invention includes an overlapping band having a release band 11 at a part of an inner side between overlapping packaging films 20 and 20a having an outer line so as to have a packaging form according to the shape of the article. After placing the valve films 10 and 10a, the outer edges of the packaging films 20 and 20a are adhered to form an adhesive line 50, and a plurality of partition lines 51 are formed inside the adhesive line 50. It is formed orthogonal to the release band 11 to form each air bag 30, and each air bag 30 is shown in Figure 5 by a release band 11 that is not bonded to its front end. As described above, the air inlet 31 is formed, and the upper side of the release band 11 is bonded to the same line as the release band 11 to form an adhesive line 52, thereby forming the valve films 10 and 10a. The outer side and the inner side of the packaging films 20 and 20a are bonded to each other.

At this time, the overlapping valve films 10 and 10a form a continuous release band 11 on one side of one valve film 10 as shown in FIG. 2 and a release surface having a constant area on the other side ( 12) is formed to be arranged at a predetermined interval so that another valve film (10a) so that the release band 11 is located on the inside and then overlap.

This type of release band is to form an air passage when the overlapped valve film is bonded, and the release surface is necessarily to one side of the valve film because the overlapping valve film is to be tightly fixed to one side of the packaging film. The release band is not limited but the release film may be formed on the valve film on the other side.

In addition, the release strip 11 forms a confirmation line 11a for accurate positioning to form the partition line 51 for forming the air bag 30. 12) You will be working while checking the exact location of the lesson.

The method for manufacturing the above-mentioned buffer packaging material should be formed by printing the release strip 11 and the release surface 12 on any one of the valve film (10, 10a), and the release band 11 of the air bag (30) Even if the mold strip 11 is present between the valve films, a complicated process of printing the marked confirmation line 11a by 2 degrees is added for accurate positioning of the partition line 51 for forming. When the upper and lower packaging film 20 and the valve film 50 and the packaging film 20a and the valve film 10a by the thermal bonding according to the adhesive film may be weakly adhered, and the valve film 10, 10a) the sound of peeling between each other occurs unevenly, and when the partition line 51 is formed, if an error occurs in the correct position with the release surface 12, the adjacent air bags may penetrate between the defects. Have

As another example of the prior art, "injection buffer packaging material and a manufacturing method thereof" are introduced in Korean Patent Publication (Registration No. 10-0491204).

Such a method of manufacturing a shock-absorbing packaging material and its products, as shown in the patent publications 1 to 5,

Valve films 110 and 111 are interposed between the overlapping packaging films 100 and 101 having an outer line, and a plurality of partition lines 130 are provided inside the adhesive line 102 formed by bonding the outer sides of the packaging films 100 and 101. Each air bag 120 is formed, the outer surface of the valve film (110, 111) and the inner surface of the packaging film (100, 101) to be bonded to each other, but the release surface 140 on the other side of the valve film (110, 111) In the injection-type buffer packaging material formed to be arranged at a predetermined interval, the air inlet release member 150 and the partition line formed in a size smaller than the width of the air bag 120 so that the air introduced into the air bag 120 does not flow out The portion intersecting with the 130 is formed in a semi-circular shape, but the symmetric inner line 160 formed by heat-sealing by forming a release material 150 for air inflow in the center, and the outer surface of the release surface 140 formed on the valve films 110 and 111. Side and inside of packaging film (100,101) The bonding portion 170 and the air filled section 180 in the middle of the bladder 120, been formed by the internal line (160) plane be bonded to each other are formed in two lines are formed.

The operation according to the configuration of the present invention made as described above is an air inlet (199) for injecting air by the air injection release member 150 formed on one side of the outer line 102 bonded to the outer side of the buffer packaging material When the air is injected from the air, the air is introduced into the buffer packaging material along the air filling part 180 formed by two lines of symmetrical inner lines 160, and the air is introduced into the release material 150 for the air inlet. Air is injected into the air inlet 154 formed by the air in both directions by the inner line symmetrical to each other and the air bag 120 is filled with air.

This packing buffer may be similar to the manufacturing method of the above-mentioned Utility Model Publication (Registration No. 20-0368881) and its products, except that the buffer packaging material of the above-mentioned Utility Model Publication is one wide band (11). And the air inlet 31 of the two air pockets (30) facing each other by one adhesive wire 52 is formed, but this is the packaging buffer is the air inflow release member 150 and partially passed to face each other There is a difference that the air inlet 154 of each air bag 120 is formed by each inner line (heat bond line) 160 and the inner surface of any one of the valve films 10 and 10a and the valve films 110 and 111. It will be the same in that the release band 11 and the release surface 12, and the release material 150 and release band 140 for the air inlet is printed on any one of the inner surface.

Therefore, this can be said to be the same as the problem occurring in the method of manufacturing a cushioning packaging material and the product, and the utility model publication mentioned above.

In addition, "buffered packaging material and its manufacturing method" are also introduced in Korea Patent Publication (Registration No. 10-0509810) as an air-injectable cushioning packaging material. This cushioning packaging material is also an air-inflatable cushioning packaging material, and the air supply connector 52 is formed by the printing parts 33 and 93 having a releasing function, and the cut lines on which the sheets 31 and 32 are not bonded to the reverse shift surface ( When the air is filled in the compartment spaces 44 and 9 into which air is introduced in 64 and 92, the upper and lower seats 31 and 32 are closed.

In addition, the printing portions 33 and 93 having a mold release surface are printed on the inner side of any one of the upper and lower sheets 31 and 32 of the reverse side.

As described above, the air-inflatable cushioning packaging material includes a release band 11 and a release face 12, a release air for partial air inlet release 150 and a release face 140, and a printing part 33 and 93 having a release face. It is common to print inward on either valve film.

As described above, if the release surface is extremely thin and the heat-sealing line is deeply formed or the heat is excessive, even if there is a release surface, the valve films may be fused together so that the air injection holes are blocked, or the release surface 12 and the release surface 140 are formed. When the heat-adhesive partition line passes through), an adjacent air bag may be penetrated, which causes a problem that the defective rate increases unless extremely precise stacking is performed.

The present invention improves the problem of the conventional air-inflatable cushioning packaging material, a plurality of valves (heat-reversing film) in the state of inserting two valve films between the upper and lower packaging film in the state of heat-bonding and filling air inside To form a compartment thermal adhesive line to form a compartment space portion of the compartment, and to form a tube air inlet for filling air into each of the independent tubes (compartment space portion) and to form an air induction injected into the air bag. An air inlet buffer packaging material having an air inlet release surface printing portion and an air induction release printing portion on either inner surface of two valve films so that an adhesive surface is formed, or a band-shaped release surface on a valve film for forming an air inlet. For forming the air inlet and the air guide line without the part plane and the plane used for forming the air guide line As a method of providing a non-adhesive part and a cushioning packing material thereof, it is possible to save expensive release materials, and to completely reduce the non-adhesive part, thereby reducing the defect rate in the manufacturing process, and to form an independent tube in a circular or oval shape, thereby forming a conventional rectangular tube. It is an object of the present invention to provide a cushioning packaging material formed of a group of tubes that can greatly improve the pressure resistance due to impact by avoiding a phenomenon in which pressure is concentrated at the corners so that the internal pressure is uniformly distributed.

In the manufacturing process, it is possible to form an air inlet having a completely non-adhesive part by inserting a thin plate release band fixed in the device between the valve films positioned at the margins between the positions where the air inlets of the tubes (air bags) facing each other are formed. To reduce the rate of defects, and to eliminate the printing of the deformed surface, and to form the tube forming partition line in a circular or oval shape to uniformly distribute the internal pressure, and the buffer packaging material formed of a group of tubes that greatly improves the pressure resistance of the tube and The manufacturing method could be provided.

The manufacturing method of the buffer packaging material according to the present invention does not use a printing release surface on the valve film for forming the air inlet and the injection air induction line of the buffer packaging material, so that the cost of the release agent can be reduced and thus the printing process can be omitted. In addition, by using a thin band instead of a release surface, it is possible to secure a completely non-adhesive surface for forming an air inlet, thereby greatly reducing defects in the manufacturing process.In addition, the buffer packaging agent manufactured according to the above method has a separate tube partition line. It has the advantage of improving the pressure resistance by 20 ~ 30% as the internal pressure is uniformly distributed compared to the conventional rectangular independent tube (air bag) which has a round shape or an oval shape, and also has an air inlet and a structure chamber forming surface. Complete non-adhesive surface can be secured at Otherwise it is a buffer packaging material formed of a group of tubes without noise generated when the air injection and the manufacturing method.

The present invention is a supplementary invention that improves the problems of the conventional air-injected cushioning packaging and its manufacturing method. First, the manufacturing method together with the schematic apparatus will be described below.

1. Manufacturing method of buffer packaging material formed of tube group

As shown in FIG. 1, two valve films 2 and 3 superimposed from a roller (not shown) overlapped with a packaging film 1 supplied from a roller (not shown) and the packaging film 1 again. And the punched valve film (2) passes over the horizontal horizontal (D) in an overlapping state, and the lower punched valve film (3) is separated and passes under the horizontal horizontal (D) to re-engage at the engagement roller (E). In the process of meeting forward, the thin film release band (F) fixedly orthogonally attached to the horizontal horizontal band (D) is inserted between the valve film (2) and the valve film (3) and stops the progress of the film in this state to form a structure chamber. The injection air induction line 102 is formed by an interlocking heat mold (not shown) that is upper and lower coincidence in the portion (air induction line forming unit) G and moves forward as much as the molding unit, and at the same time, the supply roller (H) ) And the packing film 4 are supplied by the interlocking roller (I). The tube compartment line 103, the edge line (outer line) 104, the air inlet 105 and the air filling hole 107 is formed in the upper and lower engagement mold (not shown) in the tube forming portion (J) in the stacked state As a result, the independent tube 106 is formed and the buffer packaging material formed in the tube group can be obtained by cutting at the cut portion L while being moved by the drawing unit K by the molding unit.

In the above, the packaging film may be selected from one of nylon film, polyether film, and polypuroprene film, but most preferably, nylon film (polyimide film) has excellent airtightness and excellent tensile strength. In addition, one side of the packaging film, that is, it can be said to be effective by using a film coated with a melt coating of polystyrene or a thin layer of polystyrene film on the surface in contact with the valve film.

As the valve film, it is preferable to use a polystyrene film having excellent heat sealability, and in some cases, another soft thermoplastic resin film may be used. The valve films 2 and 3 cut at the die A are each formed with a cutting line having a "-" shape, which is an entrance for entering air from the air inlet of the tube into an independent tube.

The key technology in the manufacturing method of the cushioning packaging material of the present invention is a horizontal thin band release band (F) fixed to orthogonal to the horizontal horizontal band (D) and also passed through the engagement roller (C) in an overlapping state. One packaging film (1), the valve film (2) and the valve film (3) is separated to pass the packaging film (1) and the valve film (2) over the horizontal horizontal (D) and the valve film (3) horizontal horizontal ( D) The sheet release band (F) is interposed between the valve film (2) and the valve film (3) by guiding it down and rejoining it at the engagement roller (E). It can be said that it is a way to form an air inlet by providing a separation and re-lamination of the film is continued continuously once a manual operation at the start of work.

In this case, by increasing the length of the horizontal horizontal band (D), the number of thin bands (F) can be increased, thereby requiring a wider film and increasing the number of air bags (tubes) in the width direction.

In addition, the thin plate release band (F) is 6 ~ 10mm in width, 0.5mm ~ 1mm thickness may be the most suitable, but is not limited to this material is made of Teflon band, carbon resin band, thin metal band of stainless steel, brass And bands in which a release layer is formed on a band of a heat-resistant synthetic resin or a metal band such as Titanium.

In addition, since the injection air induction line 102 is formed in the state where the packaging film 1, the valve film 2, and the valve film 3 overlap in the structure chamber (injection air induction line) forming unit (G), three films are used. The heat-sealed and the tube (air bag) forming unit (J) for forming the tube 106 in the state of overlapping in the order of the packaging film (1), valve film (2), valve film (3) and packaging film (4) Since the partition line 103 is heat-sealed, four films are heat-sealed by the partition line 103, and then moved forward by a unit molding part, and then cut at the cut part to produce a buffer packaging material formed of a group of tubes, where gas is injected. A buffer packaging material is formed on the lower surface. As gas, air, nitrogen, or carbon dioxide can be used, but in areas with high crossover, nitrogen or carbon dioxide, which has a small shrinkage and expansion rate, is advantageous.

2. Buffer packing material formed of tube group

As Example (1)

As shown in FIG. 2, in the rectangular laminated film 5 stacked in the order of the packaging film 1, the valve film 2, the valve film 3, and the packaging film 4, cut lines are formed on the valve films 2 and 3. Elliptical or round shape 101 is formed, respectively, and the injection air induction line 102 is formed by heat-sealing the packaging film 1 and the valve films 2 and 3, and includes a protruding line 103 'at both ends of the tube. The packaging film 1 and the valve film, and the valve film 3 and the packaging film 4 respectively protrude separately by the protruding line 103 'positioned on the non-adhesive surface 108 while being thermally bonded to the partition line 103 of the film. Films 1, 2, 3, and 4, which are thermally bonded in the form of lines and laminated by the elliptical or circular partition line 103 except for the protruding lines, are thermally bonded at the same time and laminated by the edge lines 104 (1). , 2, 3, 4 is a shock-absorbing packaging material formed of a group of tubes formed by the heat-sealed and sealed at the same time, the gas filling hole 107 by the non-adhesive surface 108 It can be said.

In the above-mentioned buffer packaging material, the air inlet 105 is provided with the valve film 2 on the line where the upper side line 108a and the lower side line 108a respectively form the protruding line 103 'and the non-adhesive surface 108, respectively. It is formed without being adhered between the valve film (3).

Embodiment (2) is another embodiment of the present invention as shown in FIG. 3, which differs from embodiment (1) in that the embodiment (1) is an elliptical partition line 103 comprising a protrusion 103 '. Although the embodiment (2) includes the same projecting line 103 on both sides of the upper and lower sides, there is a difference formed by the circular partition line 103, but the embodiment (1) and the embodiment (2) same.

Characteristic of the present invention, the shock-absorbing packaging material firstly increases the pressure resistance by 20-30% compared to the conventional rectangular tube. The reason is that when the pressure is applied to the tube, the pressure is concentrated at the corner of the rectangular tube and ruptures at the corner portion. However, the tube according to the present invention is elliptical or circular, so that the pressure is uniformly distributed on the front surface when pressurized.

Secondly, the buffer packaging material of the present invention has a non-adhesive surface by using a thin plate release band (F) without using a release material printing surface, and thus has an advantage of not using an expensive release material and printing process for forming a release surface. Can be omitted.

Third, the method of forming an air inlet by using a conventional release band or a partial release printing surface may be partially bonded when the release printing surface is thin or the pressure of the thermal bond line is large, and even the air inlet is blocked. While the defect rate is high, the present invention uses a thin plate release band without using a release surface, thereby completely securing a non-adhesive surface, thereby forming a perfect air inlet, thereby greatly reducing the defect rate.

1 is a manufacturing method of the buffer packaging material by a schematic apparatus of the present invention.

Figure 2 is a plan view of the buffer packaging material formed of a group of oval tubes of the present invention.

Figure 3 is a plan view of the buffer packaging material formed of a group of circular tube of the present invention.

Claims (7)

Under the packaging film 1 supplied from the roller, two valve films 2 and 3 having a cutting line 101 formed therefrom while being fed from the roller are overlapped at the engagement roller C, and the packaging film 1 in this state. And the valve film (2) passes through the horizontal horizontal plate (D) and the valve film (3) is separated and passed through the horizontal horizontal plate (D) to pass the valve film (2) in the process of moving back to the engagement roller (E). ), The horizontal thin plate release band (F) is orthogonally fixed to the center of the horizontal horizontal stage (D) between the valve film (3) is inserted and stops the progress of the laminated film in this state, and the injection air guide line forming unit (G) The injection air induction line 102 is formed by the interlocking hot molds at the upper and lower sides, and the moving air moves forward by the molding unit, and at the same time, the packaging film 4 is supplied and laminated by the engaging rollers I from the lower surface. Up / down engagement in tube forming part (J) A tube section line 103, an edge line 104, an air inlet 105 and an air filling hole 107 are formed in a mold, and then cut at the cut portion L while being moved by a drawing unit by the drawing roller K. Thereby producing a buffer packaging material formed of a tube group. The method of manufacturing a cushioning packaging material formed of a tube group according to claim 1, wherein a plurality of sheet-shaped release bands (F) are installed at horizontal intervals (D) at a predetermined interval. The method for manufacturing a cushioning packaging material according to claim 1, wherein the thin plate release band (F) is a thin plate release band in which a release layer is formed on a band of a heat resistant synthetic resin material or a metal band. In the rectangular laminated film (5) stacked in the order of the packaging film (1), the valve film (2, 3) and the packaging film (4), cutting lines 101 are formed on the valve films (2, 3), respectively, The injection air induction line 102 is formed by simultaneously heat-sealing the film 1 and the valve films 2 and 3, and according to an elliptical or circular tube segment line 103 including protrusion lines 103 'formed at both ends thereof. The packaging film 1, the valve film 2, the valve film 3, and the packaging film are respectively formed in the shape of the protrusion line 103 'by the protrusion line 103' positioned on the non-adhesive surface 108 while being thermally bonded. Films 1, 2, 3, and 4 that are thermally bonded together and laminated according to an elliptical or circular partition line 103 except for the protrusions 103 'are thermally bonded simultaneously and laminated by edge lines 104. The upper side line 108a and the protrusion line 103 'and the lower side line 108b, which (1,2,3,4) are thermally bonded at the same time and form the protruding line 103' and the non-bonding surface 108, respectively Cross lined stones A buffer packaging material formed of a group of tubes in which a tube gas injection hole 105 is formed inside the starting line 103 ′ and a tube gas injection hole 105 is formed on an extension surface of the non-adhesive surface 108. The buffer packaging material according to claim 4, wherein the non-adhesive surface (108) is formed of a plurality of tube groups. The buffer packaging material of claim 4, wherein the tube air inlet 105 is formed of a group of tubes formed on both sides of the tube. The buffer packaging material of claim 4, wherein the gas introduced into the gas filling cavity 107 is air, nitrogen gas, or carbonic acid.

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