CN103224094A - Y-shaped inflatable bag and manufacturing method thereof - Google Patents
Y-shaped inflatable bag and manufacturing method thereof Download PDFInfo
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- CN103224094A CN103224094A CN2013101541077A CN201310154107A CN103224094A CN 103224094 A CN103224094 A CN 103224094A CN 2013101541077 A CN2013101541077 A CN 2013101541077A CN 201310154107 A CN201310154107 A CN 201310154107A CN 103224094 A CN103224094 A CN 103224094A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 229920003023 plastic Polymers 0.000 claims abstract description 118
- 239000004033 plastic Substances 0.000 claims abstract description 118
- 238000007789 sealing Methods 0.000 claims abstract description 66
- 239000010410 layer Substances 0.000 claims abstract description 56
- 238000004806 packaging method and process Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 44
- 239000012528 membrane Substances 0.000 claims description 27
- 239000012790 adhesive layer Substances 0.000 claims description 17
- 239000004698 Polyethylene Substances 0.000 claims description 16
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 15
- 229920001684 low density polyethylene Polymers 0.000 claims description 15
- 239000004702 low-density polyethylene Substances 0.000 claims description 15
- 230000015572 biosynthetic process Effects 0.000 claims description 14
- 229920001903 high density polyethylene Polymers 0.000 claims description 12
- 239000004700 high-density polyethylene Substances 0.000 claims description 12
- 238000012856 packing Methods 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 8
- MGMXGCZJYUCMGY-UHFFFAOYSA-N tris(4-nonylphenyl) phosphite Chemical compound C1=CC(CCCCCCCCC)=CC=C1OP(OC=1C=CC(CCCCCCCCC)=CC=1)OC1=CC=C(CCCCCCCCC)C=C1 MGMXGCZJYUCMGY-UHFFFAOYSA-N 0.000 claims description 8
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000011229 interlayer Substances 0.000 claims description 5
- 210000002615 epidermis Anatomy 0.000 claims description 4
- 239000002530 phenolic antioxidant Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 6
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- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 238000003854 Surface Print Methods 0.000 description 1
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- 239000003795 chemical substances by application Substances 0.000 description 1
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Abstract
The invention discloses a Y-shaped inflatable bag which adopts a structure that an inflatable plastic capsule forms a bag with an article accommodating cavity and an opening at one end, and the inflatable plastic capsule adopts the structure which is provided with a plurality of strip-shaped inflation chambers and formed in a way that two wide plastic films on the surface layer and two narrow plastic films on the intermediate layer are subjected to heat sealing; each strip-shaped inflation chamber is communicated with an inflating passage through a self-absorption one-way non-return valve formed by the two narrow plastic films; the bag structure is a three-edge sealed structure formed in a way that one inflatable plastic capsule is folded in half or two inflatable plastic capsules overlap, and borders of the free edges are in heat seal through edge sealing heat-seal wires; and at least one inflatable chamber is arranged on the outer sides of the edge sealing heat-seal wires on at least one side along the direction of edge sealing heat-seal wires. According to the invention, the inflatable bag, when being not inflated during production and storage and transportation, can be folded optionally to save space and can be used repeatedly, and, when being inflated, can be used for packaging goods to partially form multiple buffering effects so as to meet the partial stronger shock-proof requirement of the goods.
Description
Technical field
The present invention relates to a kind of air bag, is a kind of air bag packing that are used for commodity protection against the tide, shockproof, anti-extrusion, protecting against shock.Can make article packing packing material after the inflation and use, also can do inner six the anti-protection pad usefulness of article case, more can do the retail packaging that the article outer packaging bag is directly made product.
Background technology
Many commodity particularly friable product such as electronic product, glasswork need adopt pads such as polystyrene foamed, polyethylene foam cushion between packing chest and commodity when storage, transportation, perhaps with the direct package goods of expanded material, to reach shockproof, anti-extrusion, protecting against shock effect, prevent that commodity from damaging when accumulating.Traditional polystyrene foamed (EPS) and polyethylene foams (EPE) based article must use at manufacturer's foaming or through just being transported to the user after the processed, and the foamed plastic volume after the moulding is huge to be not easy to transport and storage very much.Transporting and the foaming in place class material of exploitation for convenience, mainly is to utilize the Polyurethane foam goods, also forms at content next door foaming and intumescing and protects model.But the price of material is higher relatively and the equipment at scene had certain requirement, requires to be not suitable for the inner packing of large-scale pipeline product such as electronic product simultaneously at workman's efficient and working strength.Simultaneously, show serious many drawback days of polystyrene foamed (EPS) based article, become for the people all dislike " white pollution ".Relatively only at the buffer product of transit link short-term use, the offal treatment of permanent polyphenyl blister pack brings gross pollution to environment, can produce noxious gas as burning, and heap buries the destruction that produces geologic framework because of not corroding.
A kind of improved air bag packing articles of Chu Xianing in recent years; comprise an airbag and have a unidirectional non-return valve; inflate in airbag and prevent that by unidirectional non-return valve gas backstreaming spills in the bag; fully inflated airbag has the buffering effect of good absorption impact energy; with the airbag parcel commodity after the inflation or be filled in commodity and packing chest between, be not damaged with the protection commodity.Unaerated when this air bag production and transportation is only just inflated when package goods, and uses up the recyclable utilization in back, has therefore overcome the aforesaid drawbacks of traditional expanded material.As CN1903675A, this air bag generally is made up of two wide plastic sheetings and two narrow plastic sheetings, two wide plastic sheetings place the top layer, two narrow plastic sheetings place interlayer, make two wide plastic sheetings form inflatable bag through heat-sealing, two narrow plastic sheetings then pass through at the high temperature resistant printing ink of surface printing in opposite directions, be heat-sealed with two wide plastic sheetings and be bonded together, thereby the part of printing-ink can not seal to form not only separable formation free air diffuser at this place but also can fit and forms the unidirectional non-return valve of airtight effect.This air bag can be used as cushion blocking and uses or be filled between commodity and the packing chest, perhaps wraps up commodity, also can be formed on inflation back formation and can directly be enclosed within the exterior packaging bag of commodity further through different folding and local heat-sealings.
Yet; sometimes same commodity different parts is different to the requirement of damping; and when transportation, can not simply wrap up; for example for pen is counted this computer because main frame and telltale partly adopt a side that a side is arranged is the foldable structure of the portion that opens; and open portion's one side and also be provided with some switches or card reader slot etc.; be that the impact effect that vibrations produce when avoiding horizontal positioned causes damaging telltale in screen during transportation; therefore erect usually and place; neither wish to open automatically because of vibrations; simultaneously wish to have better damping effect than other places, orientation again, therefore adopt the simple parcel of existing gas flushing pouch then can't reach the better protect effect towards the downside lateral edges.
Summary of the invention
Can not adapt to the problem that the damping of same commodity different parts requires at what existing air bag packing articles existed, the object of the present invention is to provide a kind of Y shaped inflatable bag, this air bag is provided with extra buffering gas column in the part, have the effect of better absorption impact energy, improved the cushioning ability at this position.
A kind of Y shaped inflatable bag, for pressing from both sides the film formed bag configuration that is provided with an article container chamber and an end opening by inflatable plastic, it is characterized in that: inflatable plastic folder film is that two wide plastic sheetings 11,12 place top layer and two structures with a plurality of bar shaped plenum chambers 13 that narrow plastic sheeting 21,22 places interlayer to form through heat-sealing, and each bar shaped plenum chamber 13 communicates with flute shaped inflatable overall channel 7 to non-return valve by the self-priming coupon that described two narrow plastic sheetings 21,22 form; Described inflatable plastic through doubling is pressed from both sides film or is pressed from both sides films with two overlapping described inflatable plastic, the process edge sealing hot thread heat seal of free edge edge forms three bandings and closes structure, also remains with at least one plenum chamber in the outside of the described edge sealing hot thread of at least one side.
Described inflatable plastic folder film is one, is along the direction doubling vertical with the bar shaped plenum chamber.
Be positioned at bar shaped plenum chamber place is provided with two wide plastic sheetings that horizontal hot thread 32 will constitute plenum chamber and bonds together in folding both sides, position, the length of hot thread 32 is less than the width of bar shaped plenum chamber 13, so that hot thread 32 two ends and bar shaped plenum chamber edge keep certain venting channels.
Described two narrow plastic sheetings 21,22 all are that the polarity film is to strengthen from the absorption ability, for the side at the PE base material is compounded with self-adhesive layer, self-adhesive layer is the PE that is added with maleic anhydride graft in EVA, and two narrow plastic sheetings the 21, the 22nd are oppositely arranged with self-adhesive layer one side.
Wherein the EVA consumption accounts for the 2%-4% of whole polarity membrane material total mass, and the PE of maleic anhydride graft accounts for the 0.5%-1% of whole polarity membrane material total mass.
Described PE base material is from being followed successively by the LDPE layer, HDPE layer or MLDPE(metallocene LDPE with the compound side of self-adhesive layer) layer and LDPE layer.
In described HDPE layer or the MLDPE layer, HDPE or MLDPE consumption are the 0.2-0.5% of whole polarity membrane material total mass.
Account for the phenolic antioxidant of whole polarity membrane material total mass 0.3-1% in addition at described self-adhesive layer.
In the LDPE layer of contiguous self-adhesive layer, also be added with the lubricant releasing agent that accounts for whole polarity membrane material total mass 0.5-1%.
Outermost layer LDPE adopts two-layer compound, and Surface L DPE layer is added with the TNPP that accounts for whole polarity membrane material total mass 0.5-1%, and the LDPE layer adjacent with HDPE layer or MLDPE layer do not contain TNPP.
In two described narrow plastic sheetings, the thickness that constitutes a slice polarity membrane material of inside and outside space obstacle layer is the 100%-135% of another sheet polarity membrane material thickness.
A kind of manufacture method of above-mentioned Y shaped inflatable bag comprises following process:
(1) forms by 11,12 and two narrow plastic sheetings 21,22 of two wide plastic sheetings, two wide plastic sheetings 11,12 are separately positioned on the top layer, both sides of narrow plastic sheeting 21,22, narrow plastic sheeting 21,22 is arranged in the middle of two wide plastic sheetings 11,12, and is shorter than the certain distance of wide plastic sheeting 11,12.
(2) formation of unidirectional non-return valve: at first narrow plastic sheeting 21,22 and the wide plastic film 11 of upper epidermis are sealed the status requirement heat-sealing by unidirectional non-return valve filling channel, form air flue and unidirectional non-return valve by mould.
(3) the bar shaped plenum chamber forms: then by mould with wide plastic sheeting 11, narrow plastic sheeting 21,22 and wide plastic sheeting 12 according to air chamber position heat-sealing simultaneously, form the partition between each air chamber, form non-return valve simultaneously and open heat seal point 40.
(4) formation of flute shaped inflatable overall channel: the heat-sealing to hot thread 39,42,43 time through mould has more so just formed flute shape air by-pass passage 7 and stealthy heat-sealing passage K.
(5) bar shaped plenum chamber back cover: carry out transversal heat seal at two wide plastic sheeting 11,12 tail ends through mould and form hot thread 34, just formed the bar shaped plenum chamber of the media such as the air deposited of a plurality of dischargings arranged side by side;
(6) formation of packing bag: will arrange the inflatable folder film that forms through a plurality of bar shaped plenum chambers that have that a series of heat-sealings back forms, with a doubling or with two overlapping after, carry out the secondary heat-sealing along the free edge edge and form the edge sealing hot thread, form the packaging bag of an end opening; Wherein the edge sealing hot thread of secondary heat seal formation at least on one side is that heat-sealing keeps the position of road plenum chamber at least in its outside, has the multi-buffer structure of multilayer gas column to form at this place.
Beneficial effect of the present invention is:
(1) adopts inflation folder membrane structure as the commodity packaging material, producing and do not needing to inflate in advance during accumulating, and, can fold, occupy little space, help producing and transporting recyclable again recycling because to adopt plastic sheeting fully be raw material.
(2) the local multi-buffer structure that adopts can form multiple gas column, absorbs energy, good damping effect.And the structure that is roughly Y shape helps stablizing the support commodity.
(3) raw material has only plastic sheeting, adopts the mould heat-sealing to make, and production technology is simple.
(4) adopt the film of absorption polarity certainly of multi-layer compound structure as unidirectional non-return valve, good sealing effect.
Description of drawings
Fig. 1 is a middle inflatable plastic folder film deployed condition scheme drawing of the present invention;
Fig. 2 is the scheme drawing after a bar shaped plenum chamber is inflated in the inflatable plastic folder film shown in Figure 1;
Scheme drawing during Fig. 3 Y shaped inflatable bag unaerated that to be inflatable plastic shown in Figure 1 folder film form through folding back once;
Fig. 4 is a Y shaped inflatable bag inflation shown in Figure 3 back scheme drawing;
Fig. 5 is a Y shaped inflatable bag cross sectional representation shown in Figure 4;
Fig. 6 is the another kind of folding mode scheme drawing of inflatable plastic folder film among Fig. 1;
Fig. 7 is for adsorbing the composite structure scheme drawing of plastic sheeting certainly.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail, to help understanding content of the present invention.
In the present invention: " wide " and " narrow " in " wide plastic sheeting " and " narrow plastic sheeting " is relative concept, refers among both that one is compared that another is wide or narrow." free edge edge " has been meant the bonded assembly marginal portion, is for the folded edge of folding back." edge sealing hot thread " be meant to the folder film folding or overlapping after the edge carry out the hot thread of heat seal with the secondary heat seal that forms bag, with the hot thread difference of when making the folder film, carrying out heat seal." folder film " refers to have the structure of the plenum space of interlayer.
As shown in Figure 4, Y shaped inflatable bag is for pressing from both sides the film formed bag configuration that is provided with article container chamber and an end (upper end among Fig. 4) opening by inflatable plastic, commodity can be contained in from opening part and make its bar shaped plenum chamber that is inflated 13 parcels in the sack, the gas column that utilizes the inflation back to form reaches and absorbs energy and damping effect.Perhaps being enclosed within the commodity two ends with two sacks among Fig. 4 uses.
The inflatable plastic folder film that is used to make bag configuration shown in Figure 4 as depicted in figs. 1 and 2, be that two wide plastic sheetings 11,12 place the top layer, place interlayer with two narrow plastic sheetings 21,22, through the structure with a plurality of bar shaped plenum chambers 13 that forms in hot thread 33,34,43 place's heat-sealing bonding, wherein plenum chamber 13 is to form locular wall by wide plastic sheeting 11,12.Each bar shaped plenum chamber 13 communicates with flute shaped inflatable overall channel 7 to non-return valve at the self-priming coupon that the intake and exhaust end forms by two narrow plastic sheetings 21,22.Flute shaped inflatable overall channel 7 also is to form between two wide plastic sheetings 11,12, because this overall channel is vertical with each bar shaped plenum chamber direction and corresponding each bar shaped plenum chamber direction all has the passage that can ventilate, the flute hole of similar flute is the same, therefore is called flute shaped inflatable overall channel.This like this inflatable plastic folder film as shown in Figure 2, by the flute shaped inflatable overall channel 7 of heat seal at two wide plastic sheeting 11,12 upper limbs, to 7 inflations of flute shaped inflatable overall channel, air pressure makes adsorbs the narrow plastic sheeting that fits together in the unidirectional non-return valve 21,22 separately and separates to form path, air can enter each bar shaped plenum chamber 13, and bar shaped plenum chamber 13 expands and forms gas column.Stop inflation between two narrow plastic sheetings 21,22 in adsorption affinity and inflatable air chamber under the gaseous tension effect two plastic sheetings 21,22 fit together again, free air diffuser is closed air can not be leaked.The gas column that utilizes the inflation back to form absorbs impact energy, reaches the effect of extraordinary damping and protection commodity.
Form the bag configuration of a end opening that can package goods shown in Figure 4, also need inflatable plastic folder film shown in Figure 1 through folding and secondary heat-sealing.With the inflatable plastic folder film that has bar shaped plenum chamber and unidirectional non-return valve among Fig. 1 along direction doubling shown in the broken line 36 vertical with bar shaped plenum chamber 13, after the doubling shown near the free edge edge of both sides among the figure edge sealing hot thread 31 positions carry out the secondary heat-sealing, plastic film after the doubling is bonded as one along hot thread 31, promptly forms upper end open three limit osed top bag configuration in addition.In this embodiment, also remain with a bar shaped plenum chamber in the outside of left side edge sealing hot thread 31.So as shown in Figure 5; after inflation, can form one deck gas column 31A in these edge sealing hot thread 31 outsides (Fig. 5 downside); and with constitute gas column that pocket portion edge sealing hot thread 31 inboards (upside among Fig. 5) plenum chamber 13 forms two-layer gas column altogether; two-layer gas column is superimposed; form the same buffer structure of spring; compare formation double buffering structure to absorb impact energy more with upside individual layer gas column structure is only arranged, the commodity privileged site is formed better protection.As required, also can when heat-sealing, also keep at least one bar shaped plenum chamber to form the multi-buffer structure at opposite side.Be to have kept a bar shaped plenum chamber among the embodiment shown in this figure, certainly, also can keep many as required.
Because when inflation, as shown in Figure 5, its free edge can be similar to " Y " shape shape with respect to pocket portion (part of package goods) to both sides expansion formation, therefore with the packaging bag of this packaging bag called after Y shape when the bar shaped plenum chamber of reservation expanded.Y shape structure makes it more stable when direction is placed as shown in Figure 5.
In order to improve the self-priming coupon to the non-return valve sealing effectiveness, two narrow plastic sheetings that constitute unidirectional non-return valve adopt from adsorbing the polarity plastic sheeting, as shown in Figure 7, are to be compounded with self-adhesive layer 5 in a side of PE base material 6, form single face from the absorbed film material.Self-adhesive layer is the PE that is added with maleic anhydride graft in EVA.Adopting one deck PE base material one deck self-adhesive layer is the most basic polarity membrane material structure with adsorbability.This structure is because the less polarity raw material of consumption is compound at base material one side surface, polar material is evenly distributed, therefore adsorption affinity evenly helps improving sealing effectiveness, simultaneously this side polarity also help by force the bipolarity film with polar surface when relative adsorption affinity good, improve sealing effectiveness equally.Because the PE polarity of maleic anhydride graft is better than EVA, can adjust from adsorbing film surface adsorption affinity size by adjusting its content.
Further, the PE base material also can adopt multilayer materials, as shown in Figure 7, is followed successively by LDPE layer 4, HDPE layer or MLDPE layer 3, LDPE layer 2, the anti-aging protective cover 1 that LDPE+TNPP constitutes by rising with the compound side of self-adhesive layer 5.Wherein HDPE layer or MLDPE layer 3 are owing to strength of material, rigidity are higher than LDPE, therefore can make this polarity membrane material have the rigidity of appropriateness, make that film is smooth not to crease easily, help the accurate printing of follow-up high temperature resistant printing ink and cut, and two-layer polarity membrane material constitutes the smooth applying when adsorbing of unidirectional non-return valve and do not have watermark.
Outermost layer adopts the LDPE+TNPP composite bed, uses a spot of TNPP can reach antioxidant effect when improvement is surperficial to be contacted with air, prolongs ageing time.Equally, also add antioxidant in self-adhesive layer 5, adopt polarity phenolic antioxidant preferably, addition is the 0.5-1% of whole polarity membrane material total mass.Because polarity membrane material just surface contact with air, the present invention has only two outermost layers to add antioxidant, can reach but to obtain antiageing effect preferably when using than antioxidant on a small quantity.More particularly, if this membrane material is not recovered and abandons, after the surperficial part that contains antioxidant wore out in environment, its inner ageing of plastics speed can be very fast, and the degraded speedup helps reducing the harm time to environment.
This complex film adopts multi-layer co-extruded compound, and the content of each component is controlled by the raw material consumption in the product, so the former component content of the present invention is to calculate by material rate, rather than calculates in ratio in each layer, will more help production control.Among the present invention, the EVA consumption accounts for the 2%-4% of whole polarity membrane material total mass in the self-adhesive layer 1, and the PE of maleic anhydride graft accounts for the 0.5%-1% of whole polarity membrane material total mass, and phenolic antioxidant accounts for whole polarity membrane material total mass 0.3-1%.HDPE or MLDPE consumption are the 0.2-0.5% of whole polarity membrane material total mass in described HDPE layer or the MLDPE layer.TNPP accounts for the 0.5-1% of whole polarity membrane material total mass.
For improving sealing effectiveness, as shown in Figure 2, in two described narrow plastic sheetings 21,22, the thickness that constitutes a slice polarity membrane material 22 of inside and outside space obstacle layer is the 100%-135% of another sheet polarity membrane material 21 thickness, and the barrier layer that thickens more helps providing sealing effectiveness.
For ease of when inflating, making Y shaped inflatable bag in the ad-hoc location bending, to form a stable cushioned bottom portion shown in Figure 4, simultaneously also be convenient to keep shape shown in Figure 4 to be beneficial to the commodity of packing into, as shown in Figure 1, be that broken line 36 both sides are positioned at bar shaped plenum chamber place and are provided with horizontal hot thread 32 at folding position, two wide plastic sheetings that constitute plenum chamber are bonded together at the middle part, so that it diminishes in these broken line 36 position bend resistance abilities, help when inflation natural from this generation bending effect shown in Figure 4.Hot thread 32 length are less than bar shaped plenum chamber width, making hot thread 32 two ends and bar shaped plenum chamber edge is to keep certain venting channels between the hot thread 33, make air give whole bar shaped plenum chamber inflation and to form equilibrium air pressure by this position, make that not only packaging bag two load bearing face air pressures are identical, and the more important thing is that the airiness runner that these hot thread 32 places diminish has the decompression throttling action, gas can be pressed onto opposite side rapidly once when a side is subjected to impacting suddenly, avoid gas column to be crushed rapidly directly impacting the in-to-in commodity, not only have portion gas can enter opposite side simultaneously but also avoid this side gas column internal pressure that is hit too high and make this side plenum chamber explosion.
This Y shaped inflatable bag in the present embodiment can be adopted in the following method and be formed by the heat seal manufacturing by plastic sheeting:
(1) see figures.1.and.2 shown in, form by the narrow plastic sheeting 21,22 of 11,12 and two narrower polarity of wide plastic sheeting of two size broads with the mutual absorption property of internal layer.Narrow plastic sheeting 21,22 adopts complex film shown in Figure 7, and this complex film can form by coextrusion blow.Two wide plastic sheetings 11,12 are separately positioned on the top layer, both sides of narrow plastic sheeting 21,22, narrow plastic sheeting 21,22 is arranged in the middle of two wide plastic sheetings 11,12, and be shorter than the certain distance of wide plastic sheeting 11,12, so that form inflation overall channel 7 by wide plastic sheeting at an upper portion thereof, set by the size relationship of relative position shown in Fig. 1;
(2) formation of unidirectional non-return valve: at first along hot thread 44 polarity plastic sheeting 21,22 and upper epidermis plastic film 11 are sealed the status requirement heat-sealing by unidirectional non-return valve filling channel, form air flue and unidirectional non-return valve by mould.
(3) the bar shaped plenum chamber forms: then by mould with wide plastic sheeting 11, the narrow plastic sheeting 21,22 of polarity and wide plastic sheeting 12 according to the plenum chamber position according to the position of hot thread 33 heat-sealing simultaneously, form the partition between each air chamber, form non-return valve simultaneously and open heat seal point 40.Because the existence of resistant to elevated temperatures printing ink layer 37 is arranged between the polarity plastic sheeting 21,22, and pass through mould with narrow plastic sheeting 21,22 and wide plastic sheeting 11 heat-sealings of upper epidermis, so mould can be once simultaneously with polarity plastic sheeting 21 and plastic sheeting 11 heat-sealings, with polarity plastic sheeting 22 and plastic sheeting 12 heat-sealings to heat seal point 40 positions.
(4) formation of flute shaped inflatable overall channel: seal simultaneously through the position of mould again to hot thread 39,42,43, because being arranged, high temperature-resistant printing printing ink can not be bonded as one with stealthy heat-sealing passage K(with regard to having formed flute shape air by-pass passage 7 like this), the effect of hot thread 39 is when injecting compressed air, polarity plastic sheeting 21 and 22 is opened rapidly at unlatching heat seal point 40 places, form an air by-pass passage, improve the efficient that air injects.
(5) carry out transversal heat seal through mould along hot thread 34 at two wide plastic sheeting 11,12 tail ends, just formed the bar shaped plenum space of the media such as the air deposited of a plurality of dischargings arranged side by side, form inflatable plastic folder film, but this schistose texture only is applicable to filling or parcel commodity.Want to form the more complete direct package goods of bag shape structure, also need further processing.
(6) will arrange the inflatable plastic folder film shown in Figure 1 that forms through a plurality of bar shaped plenum spaces that have that a series of heat-sealings back forms, carry out folding relatively according to broken line 36 perpendicular to the bar shaped plenum chamber, as shown in Figure 3, again along the left and right sides among the figure two free edge edges use with mould along the heat-sealing of 31 predeterminated positions of edge sealing hot thread, promptly form upper end open to hold the sack of commodity, seal air inlet is filled 7 these ends along hot thread 38 heat-sealings with mould simultaneously.Because the edge sealing hot thread that the secondary heat seal in left side forms among the figure outside remains with a plenum chamber, on one side plenum chamber superimposed just formation as shown in Figure 5 has the Y shaped inflatable bag that spring absorbs the energy snubber structure.
As shown in Figure 6, as different from Example 1, Y shaped inflatable bag is by direction left and right sides doubling among the figure along broken line parallel with the bar shaped plenum chamber among Fig. 6 35, secondary edge sealing hot thread 31A is overlapped with the 31B position, vertically carry out the secondary heat-sealing and carry out the bottom sealing in a side along edge sealing hot thread 34 secondaries, form the sack of upper end open, the free edge edge keeps a bar shaped plenum chamber in the outside, position of the edge sealing hot thread 31 that the secondary heat seal forms.Compare with embodiment 1, the bottom is not one and connects gas column, and its sack bottom one side damping effect is slightly poor, and is difficult for forming bottom of unfolding shown in Figure 4, simultaneously because the both sides air chamber is isolated, the ability of resisting one-sided greater impact a little less than.
Present embodiment then is to adopt the inflatable plastic folder film shown in two Fig. 1 overlapping, do not need doubling, form the bag configuration that three sides seal a side opening along edge sealing hot thread 31 and secondary heat-sealing back, bottom hot thread 34 present position, keep at least one plenum chamber in one or both sides.This mode is compared with embodiment 1 mode, and the bar shaped plenum chamber on Y shaped inflatable bag two sides is not communicated with, and inflate respectively by the free air diffuser of both sides respectively, therefore is difficult to guarantee the two sides equalization of pressure.Same sack bottom buffer capacity is relatively poor.
With reference to shown in Figure 1, after 36 doublings of broken line among Fig. 1, bottommost edge among Fig. 1 and top heat-sealing are connected together, for example aligning hot thread 41 with hot thread 35 seals, simultaneously edge sealing hot thread 31 places in left side are sealed, then form the bar shaped plenum chamber and be the form around bag configuration, Y shape buffer part is to be positioned at the sack bottom.
Claims (10)
1. Y shaped inflatable bag, for pressing from both sides the film formed bag configuration that is provided with an article container chamber and an end opening by inflatable plastic, it is characterized in that: inflatable plastic folder film is that two wide plastic sheetings (11,12) place top layer and two narrow plastic sheetings (21,22) to place interlayer, through the structure with a plurality of bar shaped plenum chambers (13) that heat-sealing forms, each bar shaped plenum chamber (13) communicates with flute shaped inflatable overall channel (7) to non-return valve by the self-priming coupon that described two narrow plastic sheetings (21,22) form; Bag configuration is the described inflatable plastic folder film of a doubling or two overlapping described inflatable plastic folder films, free edge edge three bandings that heat seal forms through the edge sealing hot thread close structure, also are formed with at least one plenum chamber to form the multi-buffer structure along edge sealing hot thread direction in the outside of the described edge sealing hot thread of at least one side.
2. Y shaped inflatable bag as claimed in claim 1 is characterized in that: described inflatable plastic folder film is one, is along the direction doubling vertical with the bar shaped plenum chamber.
3. Y shaped inflatable bag as claimed in claim 2, it is characterized in that: be positioned at bar shaped plenum chamber place in folding both sides, position and be provided with two wide plastic sheetings (11,12) that horizontal hot thread (32) will constitute plenum chamber and bond together, hot thread (32) length is less than bar shaped plenum chamber (13) width.
4. as claim 1 or 2 or 3 described Y shaped inflatable bags, it is characterized in that: described two narrow plastic sheetings all are polarity films, be to be compounded with self-adhesive layer (5) in a side of PE base material (6), self-adhesive layer (5) is the PE that is added with maleic anhydride graft in EVA, and two narrow plastic sheetings (21,22) are to be oppositely arranged with self-adhesive layer one side.
5. Y shaped inflatable bag as claimed in claim 4 is characterized in that: wherein the EVA consumption accounts for the 2%-4% of whole polarity membrane material total mass, and the PE of maleic anhydride graft accounts for the 0.5%-1% of whole polarity membrane material total mass.
6. Y shaped inflatable bag as claimed in claim 4 is characterized in that: described PE base material, and from being followed successively by LDPE layer (4), HDPE layer or MLDPE layer (3) and LDPE layer (1,2) with the compound side of self-adhesive layer.
7. Y shaped inflatable bag as claimed in claim 5 is characterized in that: the phenolic antioxidant that accounts for whole polarity membrane material total mass 0.3%-1% at described self-adhesive layer in addition; Outermost layer LDPE adopts two-layer compound, and Surface L DPE layer (1) is added with the TNPP that accounts for whole polarity membrane material total mass 0.5%-1%, and the LDPE layer (2) adjacent with HDPE layer or MLDPE layer (3) do not contain TNPP.
8. Y shaped inflatable bag as claimed in claim 6 is characterized in that: in described HDPE layer or the MLDPE layer (3), HDPE or MLDPE consumption are the 0.2%-0.5% of whole polarity membrane material total mass.
9. Y shaped inflatable bag as claimed in claim 4, it is characterized in that: in two described narrow plastic sheetings (21,22), the thickness that constitutes the narrow plastic sheeting of a slice (22) of inside and outside space obstacle layer is the 100%-135% of the narrow plastic sheeting of another sheet (21) thickness.
10. the manufacture method of the described Y shaped inflatable of claim 1 bag is characterized in that process is as follows:
(1) forms by two wide plastic sheetings (11,12) and two narrow plastic sheetings (21,22), two wide plastic sheetings (11,12) are separately positioned on the top layer, both sides of narrow plastic sheeting (21,22), narrow plastic sheeting (21,22) is arranged in the middle of two wide plastic sheetings (11,12), and is shorter than the certain distance of wide plastic sheeting (11,12);
(2) formation of unidirectional non-return valve: at first narrow plastic sheeting (21,22) and the wide plastic sheeting of upper epidermis (11) are sealed the status requirement heat-sealing by unidirectional non-return valve filling channel, form air flue and unidirectional non-return valve by mould;
(3) the bar shaped plenum chamber forms: then by mould with wide plastic sheeting (11), narrow plastic sheeting (21,22) and wide plastic sheeting (12) according to air chamber position while heat-sealing, form the partition between each air chamber, form non-return valve simultaneously and open heat seal point (40);
(4) formation of flute shaped inflatable overall channel: the heat seal position according to flute shaped inflatable overall channel seals simultaneously to hot thread (39,42,43) again, has so just formed flute shape air by-pass passage (7) and stealthy heat-sealing passage (K);
(5) bar shaped plenum chamber back cover: carry out transversal heat seal at two wide plastic sheetings (11,12) tail end and form hot thread (34), just formed the bar shaped plenum chamber of a plurality of dischargings arranged side by side;
(6) formation of packing bag: will press from both sides film through the inflatable plastic that a series of heat-sealings back forms with a plurality of bar shaped plenum chambers, with a doubling or with two overlapping after, carry out the secondary heat-sealing along the free edge edge in predetermined edge sealing hot thread position, form the packaging bag of an end opening; Wherein edge sealing hot thread at least on one side is heat-sealing keeps at least one plenum chamber in its outside position, forms the multi-buffer structure.
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| CN201310154107.7A CN103224094B (en) | 2013-04-28 | 2013-04-28 | Y-shaped inflatable bag and manufacturing method thereof |
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| CN201310154107.7A CN103224094B (en) | 2013-04-28 | 2013-04-28 | Y-shaped inflatable bag and manufacturing method thereof |
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| WO2016115974A1 (en) * | 2015-01-23 | 2016-07-28 | 格域包装科技（昆山）有限公司 | Buffering inflatable packaging bag |
| CN105819103A (en) * | 2016-04-17 | 2016-08-03 | 泰州鑫旺包装材料有限公司 | Air-column-type buffer bag |
| CN106081360A (en) * | 2016-06-22 | 2016-11-09 | 颜登坤 | Self-sealing air sealing body and manufacture method thereof |
| CN107454888A (en) * | 2015-03-31 | 2017-12-08 | 睿科有限公司 | Buffering packaging material with multi-layer air cell |
| CN108792277A (en) * | 2018-08-02 | 2018-11-13 | 北京工商大学 | The self-regulation buffering pneumatic cushion of reversible check |
| CN109707879A (en) * | 2019-03-01 | 2019-05-03 | 天津茂创科技发展有限公司 | A kind of gas check valve and its application in gas chamber packaging structure |
| CN111959077A (en) * | 2020-08-28 | 2020-11-20 | 成都理工大学 | Flexible phase change material packaging bag with migration resistance and deformation resistance and preparation method thereof |
| CN113085269A (en) * | 2021-03-26 | 2021-07-09 | 上海唐科新型包装材料有限公司 | Anti-layering gas column bag, gas column film and gas column bag processing technology |
| CN115973603A (en) * | 2023-01-10 | 2023-04-18 | 浙江迪弗莱包装科技股份有限公司 | Rapid-deflation gas column bag and production process thereof |
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| CN107454888B (en) * | 2015-03-31 | 2019-08-09 | 睿科有限公司 | Buffering packaging material with multi-layer air cell |
| CN105819103A (en) * | 2016-04-17 | 2016-08-03 | 泰州鑫旺包装材料有限公司 | Air-column-type buffer bag |
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| CN108792277A (en) * | 2018-08-02 | 2018-11-13 | 北京工商大学 | The self-regulation buffering pneumatic cushion of reversible check |
| CN109707879A (en) * | 2019-03-01 | 2019-05-03 | 天津茂创科技发展有限公司 | A kind of gas check valve and its application in gas chamber packaging structure |
| CN111959077A (en) * | 2020-08-28 | 2020-11-20 | 成都理工大学 | Flexible phase change material packaging bag with migration resistance and deformation resistance and preparation method thereof |
| CN113085269A (en) * | 2021-03-26 | 2021-07-09 | 上海唐科新型包装材料有限公司 | Anti-layering gas column bag, gas column film and gas column bag processing technology |
| CN115973603A (en) * | 2023-01-10 | 2023-04-18 | 浙江迪弗莱包装科技股份有限公司 | Rapid-deflation gas column bag and production process thereof |
| CN115973603B (en) * | 2023-01-10 | 2023-08-29 | 浙江迪弗莱包装科技股份有限公司 | Quick deflation air column bag and air column bag production process |
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