CN88102513A

CN88102513A - The cylindrical packing body made with film and preparation method thereof and producing device

Info

Publication number: CN88102513A
Application number: CN88102513.5A
Authority: CN
Inventors: 濑谷清美; 大西章次
Original assignee: Kureha Corp
Current assignee: Kureha Corp
Priority date: 1987-04-30
Filing date: 1988-04-29
Publication date: 1988-11-16
Also published as: KR880012443A; JPS63272612A; CN1013566B

Abstract

The present invention is the cylindrical packing body of being made by the film that is used to pack food such as sausage, food is filled in the cylindrical sleeve that the casing processing film is become, two ends with this cylindrical sleeve are squeezed into plat part then, to be welded together more than the film of the casing film number of plies at this plat part, improve the heat seal strength of plat part casing film, thereby obtain to bear the required heat seal strength of treatment process such as distillation sterilization.The packaging body with unique profile that simultaneously, can also obtain not occurring as yet up to now.

Description

The present invention relates to processed foods such as sausage, ham serve as load thing, with the cylindrical packing body that film is made, the two end portions that particularly will be rolled into the casing film of tubular is processed into flat pattern and carries out cylindrical packing body frit seal, that make with film and preparation method thereof and producing device.

Fig. 6 is that what to have earlier serves as the axonometric drawing of loading cylindrical packing body thing, that make with film with food such as sausages.

This packaging body that has earlier, processed food are to use the casing blister-pack that forms by extending such as the poly-mer of polyvinyl dichloride-vinyl chloride.After this casing film was rolled into tubular, some surpluses that two edge is reserved were welding together with the high frequency welding technology, thereby make cylindrical jacket 1.In Fig. 6, the potted line that symbol 2 expressions utilize the high frequency welding technology to be welding together.After in cylindrical jacket 1, filling processed food, the two ends boundling of cylindrical jacket 1 is got up, then, utilize the metal clip of making by metallic aluminium etc. 3 that its two ends are tightened.

This packaging body of tightening (clamping) two ends with metal clip 3, because the clip intensity at packaging body two ends is very high, so during furnace run such as distill (high temperature high pressure sterilizing) and boil in subsequent handling, what the portion of tightening can withstand packaging body internal pressure increases.

In the shape of packaging body shown in Figure 6, in the past long-time, be the fixing face shaping of commodity such as sausage.But because the profile of processed food packing is relevant with desire to purchase, in order to improve people's desire to purchase, simultaneously also in order to improve the quality of the food of filling in the packaging body, people expect to develop new packaged configuration.

In addition, the packaging body of tightening with metal clip 3 shown in Figure 6, the novelty that does not only have above-mentioned outward appearance, and the leakproofness of tightening part is bad, in heating treatment step, because the rising of packaging body internal pressure, the moisture of processed food can ooze out from tightening part, when carrying out vacuum packaging, can produce phenomenons such as vacuum sucks back from tightening part for food such as resembling ham.So-called vacuum resorption is exactly that outside air invades packaging body inside, makes inside become antivacuum state.

Therefore, after someone's two ends boundling of having proposed to be rolled into columnar casing film gets up recently, do not use metal clip 3, and the packaging body that only with ultrasonic technology this boundling portion is welding together.For example: the patent gazette spy of Japan opens clear 59-26424 communique and has just put down in writing this packaging body.

Packaging body with ultrasonic technology is welding together boundling portion is not using on the metal clip this point, can be described as new package shape, still, and the appearance similar of it and the packaging body that has earlier shown in Figure 6, a kind of brand new design of can not saying so.And though merely the packaging body that only the casing film of the boundling portion of cylindrical jacket is welding together with ultrasonic technology is fine aspect the leakproofness, and the packaging body of use metal clip 3 compares, and the compressive resistance of weld has but reduced.Therefore, though for being that marketable product is an actv. only by packing, but, also must be after packing for resembling food such as sausage, ham through the situation of heating processes such as distilling and boil, along with distillation with boil the pressure that waits in the packaging body that furnace run causes and increase, may cause weld portion to be broken because the compressive resistance of weld is not enough, make the leak tightness reduction, thereby food is rotted because of the intrusion of extraneous air, perhaps cause the moisture of food outwards to ooze out.And serious situation is that packaging body may break from weld portion in distillation process.In addition, for this packaging body, if take to improve the way of the contact pressure between ultrasonic acoustic cartridge and the reflection applicator for the heat seal strength of the boundling portion of improving cylindrical jacket, then can make weld portion because of melting phenomenons such as excessively producing pin hole, perhaps the casing film with boundling portion fuses, the compressive resistance of weld is reduced, even can not seal fully.

The present invention puts forward in order to address the above problem, purpose is to want to provide a kind of metal clip that neither uses, and the packaging body that only just the both ends welding of packaging body must be able to be had enough compressive resistances with welding means such as super sonics, and, compare with the packaging body that has earlier, have brand new container dimensions.

The present invention includes the cylindrical packing body made from film, the method for making of packaging body and three parts such as producing device of packaging body, the cylindrical packing body made from film is with two edge joint of banded casing film together, make it to become cylindrical sleeve, food is filled in the cylindrical sleeve, the both ends of this cylindrical sleeve are squeezed into flats, for the situation of using individual layer casing film, to comprise this casing film is welded together at the interior film more than three layers and constitutes at flat place, for the situation of using double-deck casing film, be welded together at the interior film more than five layers and constitute comprising this casing film;

The method for making of packaging body is, earlier banded casing film is rolled into tubular, two edge joint is got up, form cylindrical sleeve, food is filled in this cylindrical sleeve, flats is processed in the end that will constitute packaging body then, when using individual layer casing film, to comprise this casing film at this plat part and be welded together, when using double-deck casing film, will comprise this casing film at this plat part and be welded together at the interior film more than five layers at the interior film more than three layers;

The producing device of packaging body comprises: the molded component that banded casing processing film is become tubular; Two side edge sealing mechanism altogether of the tubular casing film that will be processed into by molded component; The applying nozzle of filling food in the cylindrical sleeve that two edge joint of casing film are got up; The cylindrical sleeve of having filled food is pushed off and on the pressing mechanism that forms plat part; Supply with the reinforcing membrane feed mechanism of reinforcing membrane and the welding mechanism that the plat part and the reinforcing membrane of cylindrical sleeve is welded together and cut off to the outside of the plat part of cylindrical sleeve.

At packaging body of the present invention, be that the two ends of the cylindrical sleeve that will be rolled into by the casing film are squeezed into flats, its outward appearance and the packaging body that has earlier shown in Figure 6 differ widely, and are a kind of brand new packaged configuration.In addition, according to method for making of the present invention and producing device, be the plat part that is squeezed at the both ends with cylindrical sleeve with methods such as super sonics, the film more than five layers in the film more than three layers in this casing film when using individual layer casing film is included in or this casing film when using double-deck casing film are included in is welded together.That is to say, carry out welding if only clamp plat part with ultrasonic acoustic cartridge and reflection applicator, the intensity of weld portion will descend the thickness attenuation of the casing film of puddle owing to the pressure between ultrasonic acoustic cartridge and the reflection applicator.Even under opposite extreme situations, also can will form the casing film fusing of boundling portion, at this moment, the intensity of weld portion will descend significantly.Because the present invention is after the outside affix reinforcing membrane of the casing film of boundling portion, with the ultrasonic acoustic cartridge with reflect applicator and they are clamped carry out welding, so the thickness of the thickness of the film of fusing department casing film during with welding not is identical, perhaps thicker.So, to compare with the situation of only the casing film being carried out welding, the intensity of weld portion has improved, in heating treatment step such as distilling, boil, even the increased pressure in the packaging body also can be born fully.

Below with reference to Fig. 1～Fig. 5 embodiments of the invention are described.

Fig. 1 is the axonometric drawing of an embodiment of packaging body of the present invention; Fig. 2 is the axonometric drawing of the weld of packaging body end shown in Figure 1; Fig. 3 is a front sketch of making the producing device of packaging body shown in Figure 1; Fig. 4 is the front elevation of the welding mechanism in the producing device shown in Figure 3.

As shown in Figure 1, cylindrical packing body of the present invention, be the fluoropolymer resin of vinylidene chloride-vinyl chloride being extended two edge welds of the casing film that forms (among the figure with the high frequency welding technology with methods such as inflations, the potted line of symbol 2 these high frequency weldings of expression), form cylindrical sleeve 1, be filled into that its inside forms with processing is carnivorous.The both ends of this cylindrical sleeve 1 are extruded the back and form plat part 1a, and adding in the both sides of this plat part 1a has reinforcing membrane band 5.This reinforcing membrane band 5, be with can with the casing film of making above-mentioned cylindrical sleeve 1 mutually the material of welding make, for example, can be the same with the casing film, use the film that the fluoropolymer resin extension of vinylidene chloride-vinyl chloride is formed by methods such as inflations.This reinforcing membrane band 5 must be can with the casing film material of welding mutually, as long as can welding, also can adopt the material different with the casing film.And,, with ultrasonic technology casing film and reinforcing membrane band 5 are welded together along potted line A at plat part 1a place.The folding length width of cylindrical sleeve 1 is 22 millimeters.So-called folding length width is a technical term, and in other words the width when referring to that cylindrical jacket 1 is folded into flats, is exactly half of drum circumference.In addition, when using duplicature, the thickness of casing film is 20 microns, and when using monofilm, the thickness of casing film is 40 microns.Reinforcing membrane 5 also can be used duplicature or monofilm.The size of reinforcing membrane band 5, for example, can make width W is that the folding length width of 4 millimeters, length H and cylindrical sleeve 1 equates about 22 millimeters film.With ultrasonic technology with reinforcing membrane band 5 after plat part 1a is fused to, the ideal thickness T at potted line A place is about 0.05～0.1 millimeter.

In addition, as shown in Figure 2, if at the two ends of cylindrical sleeve 1 or the edge of the plat part 1a of arbitrary end have otch 4, can at an easy rate the casing film that forms cylindrical sleeve 1 be torn from this otch 4, thereby can in the casing film, strip out food come very easily.

Below, the producing device of above-mentioned packaging body is described.

In Fig. 3, symbol 11 is charge pumps, and symbol 12 is applying nozzles.Processing meat when making sausage is after being supplied to pump 11 pressurizations, to supply with by applying nozzle 12.On the top of diagram applying nozzle 12, its outside is provided with molded component (shaping template) 13.Banded casing film 10 by film raw hide 14 is drawn by

guide wheel

15a and 15b guiding, is rolled into tubular by above-mentioned molded component 13.In addition, below molded component 13, be provided with the high-

frequency electrode

16 and 17 that faces toward mutually, will be processed into two edge welds of the banded casing film 10 of tubular by molded component 13 by this high-frequency electrode 16 and 17.Through the potted line of welding, in Fig. 1, represent with symbol 2.By above-mentioned operation, can make cylindrical sleeve 1.Then, by above-mentioned applying nozzle 12, food can be filled in the cylindrical sleeve 1.

Below applying nozzle 12, be provided with

film conveying roller

18 and 19, by this conveying

roller

18 and 19, cylindrical sleeve 1 can be sent downwards continuously.Below leaning on again, also be provided with a pair of compression roller 21.This a pair of compression roller 21 can be driven to mutual crimping or the direction that is separated from each other.The cylindrical sleeve 1 that carry on the processed food limit is filled on the limit downwards, by the step crimping action of compression roller 21, will extract only with the food in the cylindrical sleeve 1 of these compression roller 21 contact portions, and the casing film extrusion of this part is become flats.

Below compression roller 21, be provided with welding mechanism 30.This welding mechanism 30 be installed in can reciprocating along the vertical direction platform on (not shown), particularly, the speed when it descends and the descending speed of cylindrical shape casing film are roughly the same.Utilize this welding mechanism 30, will be welding together and cut off by the part that above-mentioned compression roller 21 is squeezed into flats.

Fig. 4 is the constructional drawing of welding mechanism 30.

Symbol

31 and 32 is stripper plates.A pair of stripper plate 31 in a side setting is to dispose up and down with certain interval, and a pair of stripper plate 32 that opposite side is provided with is relative with above-mentioned stripper plate 31, also disposes up and down.The front end of stripper plate 31 is flat compressive plane 31a, and the front end of the stripper plate 32 of opposite side also is flat compressive plane 32a.Each

stripper plate

31 and 32 moves reciprocatingly under driver train (not drawing among the figure) drives.As shown in Figure 4, when two pairs of

stripper plates

31 and 32 when the directions of mutual crimping advance, be squeezed into the plat part 1a of the cylindrical sleeve 1 of flats through compression roller 21 shown in Figure 3, under the extruding of two pairs of

stripper plates

31 and 32, further be squeezed into flat form.

In addition,, be provided with reflection applicator 33,, be provided with ultrasonic acoustic cartridge 34 in the centre of opposite side stripper plate 32 in the centre of stripper plate 31.As shown in Figure 3, ultrasonic acoustic cartridge 34 by booster 35 that super sonic is amplified be that hypracoustic frequency converter 36 links with high frequency conversion.Reflected sound plate 33 and ultrasonic acoustic cartridge 34 can be finished the advance and retreat action mutually under the effect of driver train.When forward direction when motion under their effects at driver train, what then reflect applicator 33 front ends adds adding pressure surface 34a and will the casing film reinforcing membrane band 5 at plat part 1a place being clamped by the pressure of appointment of pressure surface 33a and ultrasonic acoustic cartridge 34 front ends.In addition, the inboard at reflection applicator 33 is provided with a pair of second stripper plate 39.This is to the front end of stripper plate 39, adds pressure surface 34a facing to ultrasonic acoustic cartridge 34.The front end of this stripper plate 39 also is a flat pattern.As shown in Figure 4, in this centre, be provided with cutting knife 37 to second stripper plate 39.This cutting knife 37 is installed on the cutoff knife rack 38.When driving this knife rest 38 and travel forward,, the centre portion of the plat part 1a of cylindrical sleeve 1 is cut off by this forward motion with the forward motion that slightly lags behind reflection applicator 33.At this moment, by means of second stripper plate 39 with add pressure surface 34a plat part 1a is clamped, finish the action that auxiliary cutting knife 37 cuts off plat part 1a.In addition, be processed with groove 34b on the ultrasonic acoustic cartridge 34, this groove 34b can insert cutting knife 37.

Symbol 5 is reinforcing membrane bands.In the embodiment shown in fig. 4,4 reinforcing membrane bands 5 are transported to the front that adds pressure surface 33a of reflection applicator 33 and the front that adds pressure surface 34a of ultrasonic acoustic cartridge 34 by not shown film band guide wheel.Also be provided with in welding mechanism 30 and cut off parts (not drawing among the figure), these cut-out parts are used for and will cut off by length H shown in Figure 2 with the reinforcing membrane band 5 that the casing film is welded together by reflection applicator 33 and ultrasonic acoustic cartridge 34.In addition, in the embodiment shown in fig. 4, be to supply with 4 reinforcing membrane bands 5 to the both sides of plat part 1a, still, also can respectively supply with the reinforcing membrane 5 of 1 broad, altogether only with two to the both sides of plat part 1a.At this moment, the reinforcing membrane band 5 that is welded together with plat part 1a by the 2nd stripper plate 39 with when adding pressure surface 34a and clamp, also can be cut off by the casing film of cutting knife 37 with itself and plat part 1a together.

The following describes the method for making of utilizing above-mentioned producing device to make packaging body.

The casing film is the film that will extend and form such as the fluoropolymer resin of inclined to one side chlorine divinyl-vinyl chloride with methods such as inflations, and when using duplicature, the thickness of casing film is about 20 microns, and when using monofilm, the thickness of casing film is about 40 microns.In addition, reinforcing membrane band 5 also is the film that will extend and form such as the fluoropolymer resin of vinylidene chloride-vinyl chloride with methods such as inflations.Reinforcing membrane band 5 can be duplicature or monofilm, and its gross thickness is 20～90 microns, can select its thickness arbitrarily according to the welding condition.

As shown in Figure 3, the banded casing film 10 from film pachydermia 14 is drawn is rolled into cylindrical shape by molded component (shaping template) 13, by

film conveying roller

18 and 19 the casing film is sent downwards by the speed of appointment.Be rolled into tubular banded casing film 10 two edge joint together, utilize high-

frequency electrode

16 and 17 it to be welding together (referring to the symbol among Fig. 1 2).Then, will process food such as meat by charge pump 11 and applying nozzle 12 is filled in the above-mentioned cylindrical sleeve 1.

Filled the cylindrical sleeve 1 of food, moved by the crimping of a pair of compression roller 21 and be squeezed into flats off and on.

And then, in reciprocating along the vertical direction welding mechanism 30, the stripper plate 31 that casing film both sides are oppositely arranged and 32 drives to close mutually direction earlier, and the compressive plane 31a of each

stripper plate

31 and 32 and 32a will further be pushed by the plat part 1a that above-mentioned compression roller 21 pushed.Reflection applicator 33 and ultrasonic acoustic cartridge 34 slightly lag behind

stripper plate

31 and 32 and push ahead, utilize reflection applicator 33 add pressure surface 33a and ultrasonic acoustic cartridge 34 add pressure surface 34a, clip together being transported to the reinforcing membrane band 5 of plat part 1a side and the casing film of plat part 1a part.Then, under the contact pressure effect of reflection applicator 33 and ultrasonic acoustic cartridge 34, utilize ultrasonic technology that casing film and the reinforcing membrane band 5 of plat part 1a are welded together.After welding action was finished, cutoff knife rack 38 was pushed ahead, at plat part 1a place, and cut-out in the middle of the part of the welding that will separate up and down.During cut-out, plat part 1a is by second stripper plate 39 and add pressure surface 34a and clamp.

If on the blade of above-mentioned cutting knife 37, be provided with the auxiliary blade with a single-piece V-shape of its formation again, so, when cutting off the plat part 1a of cylindrical sleeves 1 with cutting knife 37, just can be by assisting blade to cut out the otch shown in the symbol 4 among Fig. 2 simultaneously.At this moment, must be provided with the groove of the auxiliary blade that can insert V-shape at the edge of the groove 34b on the ultrasonic acoustic cartridge 34.

Utilize above-mentioned cut-out action, promptly can be made into the packaging body that is separated from each other one by one shown in Figure 1.As shown in Figure 2, the packaging body of making, the plat part 1a place of at both ends, casing film and reinforcing membrane band 5 are welded together.Shown in the experimental result of back, owing to casing film and reinforcing membrane band 5 are welded together at this plat part 1a, so the intensity ratio of weld portion has only improved the packaging body that the casing film is welding together, when furnace run such as after packing, distilling and boil, although the internal pressure of packaging body increases, the weld portion of plat part 1a also can be born fully.One of the reason of having used reinforcing membrane band 5 can improve the intensity of weld portion is: when not using reinforcing membrane band 5, under the effect of the contact pressure between reflection applicator and the ultrasonic acoustic cartridge, the thickness of the casing film of weld portion during than welding not the original thickness of casing film little.In contrast, when having used reinforcing membrane band 5, the original thickness of the casing film in the time of can guaranteeing the thickness of weld portion with welding casing film only is identical or thicker.

In the above-described embodiments, be to be welded together at the additional reinforcing membrane band 5 in the both sides of plat part 1a and with them, still, if, also can improve the intensity of weld portion to a certain extent only at the additional reinforcing membrane band 5 of the side of plat part 1a.

In addition, in the various embodiments described above, if the welding means of casing film and reinforcing membrane band 5 are not ultrasonic technologies but the high frequency welding technology also can obtain same effect.

Fig. 5 is second embodiment of packaging body of the present invention.This packaging body the end with cylindrical sleeve 1 resemble be squeezed into plat part 1a the packaging body illustrated in figures 1 and 2 after, the edge fold of plat part 1a is got up.Then, utilize ultrasonic technology to be welded together totally 4 layers of this folding part 1b and plat part 1a (when using individual layer casing film) or totally 8 layers when casing film (use double-deck) film, form sealing A ₁That is: make the casing film of folding part 1b have the effect identical, by 4 layers or 8 layer films are welded together the heat seal strength that improves plat part 1a with reinforcing membrane band shown in Figure 25.

The following describes above-mentioned intensity experiment result with packaging body of weld.

The material of film:

Test employed casing film and be that to be mixed into plasticizer, stabilizer, lubricant and the agent that corrugates by vinylidene chloride and vinyl chloride be after fluoropolymer resin that 80: 20 proportion of composing constitutes utilizes fusion extruder heating and melting by weight, extrude the film that after speed is cold, extends and form with methods such as inflations from tubular nozzle.When using duplicature, about 20 microns of casing film thickness, when using monofilm, about 40 microns of the thickness of casing film.In addition, the folding length width of cylindrical sleeve is about 22 millimeters.

The reinforcing membrane band 5 that experiment is used is that being mixed into plasticizer, stabilizer, lubricant and the agent that corrugates by vinylidene chloride and vinyl chloride is after fluoropolymer resin that 77: 23 proportion of composing constitutes utilizes fusion extruder heating and melting by weight, extrude the film that after speed is cold, extends and form with aeration from tubular nozzle.The size of the reinforcing membrane band 5 that experiment is used is, is about 4 millimeters by width W shown in Figure 2, and length H is identical with the folding length width of cylindrical sleeve 1, is about 22 millimeters.In addition, the reinforcing membrane band can be duplicature or single thin film in experiment, and its gross thickness is a kind of in 20 microns to 90 microns scope every 10 microns, has done 8 kinds of experiments respectively altogether.

The experimental result of the sealing intensity of weld portion:

After will being rolled into tubular by the banded casing film 10 that above-mentioned material is made, make cylindrical sleeve 1.As first embodiment shown in Figure 2, the one end is squeezed into flats, and at the both sides of plat part affix reinforcing membrane band 5, utilizing frequency then is that 40 kilo hertzs, power are that 350 watts ultrasonic acoustic cartridge carries out welding, forms the welding thickness T and is about 0.05 millimeter～0.1 millimeter weld portion.We just it as laboratory sample of the present invention.In addition, sample as a comparison, we are that the end with cylindrical sleeve 1 is squeezed into plat part, but additional reinforcing membrane band 5, utilizing frequency at this plat part is that 40 kilo hertzs, power are 350 watts ultrasonic acoustic cartridge, only the casing film is welded together.

Experiment is that air nozzle is inserted in the open end of the cylindrical sleeve that is welding together by said method from the one end, at the about 300 millimeters places of the flat weld portion of distance, utilizes India rubber tube that film is tightened into the state that air can not leak.Then, this sample is immersed in the water, increase air pressure lentamente, measure barometric indicated value (kg/cm) when producing escape of air.In addition, the folding length width of cylindrical sleeve 1 is 22 millimeters.

Experimental result is as shown in table 1.In the table, in the air-proof condition hurdle, the numerical value on the left side is the contact pressure (kg/cm) between ultrasonic acoustic cartridge and the reflection applicator, and the numerical value on the right is amplitude (micron).The unit of reinforcing membrane tape thickness is a micron.In addition, the numerical value in the sealing intensity hurdle is exactly above-mentioned barometric indicated value (kg/cm), and the boundary of mensuration is 2.0 kg/cm.To various test conditions, the quantity of laboratory sample is 50.

As shown in Table 1, be that plat part is carried out the end seal of welding with the casing film equally, the sealing intensity that uses reinforcing membrane band 5 is than not using the much higher of reinforcing membrane band 5.And, from air-proof condition,, therefore, can be sure of that it can be used for distilling the packaging body of processing fully owing to the compressive resistance that can obtain greater than 2.0 kg/cm.The result of the breaking test of packaging body:

After will being rolled into tubular by the casing film that above-mentioned material is made, water is filled into its inside, as first embodiment illustrated in figures 1 and 2, its two ends are squeezed into flat pattern, and in the both sides of plat part 1a affix reinforcing membrane 5, utilizing frequency is that 40 kilo hertzs, power are that 350 watts ultrasonic acoustic cartridge carries out welding, makes length and be 180 millimeters packaging body.The thickness T of weld portion is approximately 0.05～0.1 millimeter.We just this packaging body as laboratory sample of the present invention.Simultaneously, sample as a comparison, be to be rolled in the casing film of tubular to be full of water, after its two ends are squeezed into flats, at the additional reinforcing membrane band 5 of this plat part, be that 40 kilo hertzs, power are that only the casing film to be welding together the length of making be 180 millimeters packaging body for 350 watts ultrasonic acoustic cartridge with frequency just.

It is that 2.2 kg/cm, temperature are 120 degrees centigrade distillation sterilization that above-mentioned each sample has been carried out 15 minutes pressure.The folding length width of cylindrical sleeve is 22 millimeters.Experimental result is as shown in table 2.In the table, in the air-proof condition hurdle, the numerical value on the left side is the contact pressure (kg/cm) of ultrasonic acoustic cartridge and reflection applicator, and the numerical value on the right is amplitude (micron).The thickness unit of reinforcing membrane band is a micron.In addition, the numerical value of breakage rate is damaged test article number in 50 laboratory samples under each experiment condition, that is: the denominator of breakage rate provides to the total number of samples of doing experiment, the sample number that molecule is damaged.

As shown in Table 2, after the two ends of cylindrical sleeve are squeezed into plat part, do not use the reinforcing membrane band to carry out the packaging body of welding, all damaged in distillation process, in contrast, it is of the present invention that to have used the packaging body that plat part is welding together behind the reinforcing membrane band 5 to destroy quantity few, under some air-proof condition, and all can be damaged in distillation process.Therefore, can be sure of packaging body of the present invention be used to pack need be through distillation process be practical fully such as food such as sausages.

In addition, the membraneous material that the present invention uses is not limited to the poly-mer of vinylidene chloride-vinyl chloride, and other resins can also obtain identical effect.As other resins that carry out ultrasonic welding, for example: the poly-mer of the vinylidene chloride system that can constitute or the film that polyvinylchloride is made with the monomer of energy and vinylidene chloride polymerization.

Packing method of the present invention for boiling product processed such as food such as hams after carrying out vacuum packaging, also can improve sealing intensity, in boiling operation, sealing is destroyed, thus phenomenon such as can prevent that vacuum sucks back.

In addition, the goods for need not carry out furnace run such as bar-shaped cheese etc. use packaging body of the present invention, and brand new packaged configuration also can be provided, and can also provide complete fully enclosed packaging body simultaneously.

As mentioned above,,, can provide a kind of brand new packaging body, the packaging body of the metal clip made such as aluminium wire that has been different from use shown in Figure 6 fully as the packaging body of food such as sausage according to the present invention.Its result has refreshed the image of goods such as sausage fully, thereby, can promote people's desire to purchase owing to the change of packaging body.In addition, carry out welding by plat part affix reinforcing membrane, thereby can improve the sealing intensity of plat part at cylindrical sleeve, so, can be used in the packing of distilling and boiling etc. the food of furnace run as needs.

Fig. 1 is the axonometric drawing of first embodiment of packaging body of the present invention; Fig. 2 is the axonometric drawing of packaging body end weld shown in Figure 1; Fig. 3 is the front sketch of embodiment of the producing device of packaging body of the present invention; Fig. 4 is the part front elevation of the welding mechanism in the producing device of packaging body; Fig. 5 is the part axonometric drawing of second embodiment of packaging body of the present invention; Fig. 6 is the axonometric drawing of the packaging body that has earlier.

The 1-cylindrical sleeve; The plat part of 1a-cylindrical sleeve; 5-reinforcing membrane band; The banded casing film of 10-; The 12-applying nozzle; The 13-molded component; 16 and 17-constitute the high-frequency electrode of sealing mechanism; 18 and 19-film conveying roller; 21-constitutes the compression roller of pressing mechanism; 30-welding mechanism; 31,32,39-stripper plate; 33-constitutes the reflection applicator of ultrasonic welding mechanism; 34-constitutes the ultrasonic acoustic cartridge of ultrasonic welding mechanism; The 37-cutting knife.

Claims

1, a kind of feature of the cylindrical packing body of making of membraneous material is: two edge joint of banded casing film are rolled into cylindrical sleeve together, filling food in this cylindrical sleeve, and the two ends of this cylindrical sleeve are squeezed into flats; When using individual layer casing film, will comprise this casing film at this plat part and be welded together at the interior film more than three layers; When using duplicature, will comprise this casing film at this plat part and be welded together at the interior film more than five layers.

2, the feature by the described cylindrical packing body of making of membraneous material of claim 1 is: adding reinforcing membrane in the outside of plat part one side or the outside of both sides, at this plat part casing film and reinforcing membrane are being welded together.

3, the feature by the described cylindrical packing body of making of membraneous material of claim 1 is: at plat part, the edge of casing film is folded; When using individual layer casing film, will comprise above-mentioned folding part at this plat part and be welding together, when using double-deck casing film, will comprise that at this plat part eight layer films of folded part are welding together at interior four-level membrane.

4, the feature by claim 1, the 2 or 3 described cylindrical packing bodies of making of membraneous material is: at plat part, adopt ultrasonic technology to carry out welding.

5, a kind of feature of making the method for making of packaging body with membraneous material is: earlier banded casing film is rolled into tubular, with two edge joint together, make cylindrical sleeve, then, food is filled in this cylindrical sleeve, the end of this packaging body is squeezed into plat part, when using individual layer casing film, the film more than three layers that will comprise this casing film at this plat part is welded together, when using double-deck casing film, will comprise that at this plat part the film more than five layers of this casing film is welded together.

6, by the described feature of making the method for making of packaging body with film of claim 5 be: the outside affix reinforcing membrane in the outside or the both sides of plat part one side is welded together casing film and reinforcing membrane.

7, by the described feature of making the method for making of packaging body of claim 5 be: at plat part the casing film is folded up, when using individual layer casing film, will be comprised that at this plat part the four-level membrane of folded part is welding together with film; When using double-deck casing film, will comprise that at this plat part eight layer films of folded part are welding together.

8, the feature by the method for making of claim 5,6 or 7 described packaging bodies is: at plat part, utilize ultrasonic technology to carry out welding.

9, a kind of feature of making the producing device of packaging body with film is: comprise the molded component that banded casing film is rolled into tubular, to be rolled into two sealing mechanisms that edge joint is got up of the casing film of tubular by molded component, the applying nozzle that food is filled in the cylindrical sleeve that two edge joint of casing film are got up, the cylindrical sleeve of having filled food is squeezed into off and on the pressing mechanism of plat part, supply with the reinforcing membrane feed mechanism of reinforcing membrane and the welding mechanism that the plat part and the reinforcing membrane of cylindrical sleeve is welded together and cuts off to the outside of the plat part of cylindrical sleeve.

10, by the described feature of making the producing device of packaging body of claim 9 be: the ultrasonic welding mechanism that welding mechanism is made up of ultrasonic acoustic cartridge that the plat part and the reinforcing membrane of cylindrical sleeve are clamped and reflection applicator with film.