CN1631735A - Packaging and fresh-keeping method for foodstuff - Google Patents
Packaging and fresh-keeping method for foodstuff Download PDFInfo
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- CN1631735A CN1631735A CN 200510002388 CN200510002388A CN1631735A CN 1631735 A CN1631735 A CN 1631735A CN 200510002388 CN200510002388 CN 200510002388 CN 200510002388 A CN200510002388 A CN 200510002388A CN 1631735 A CN1631735 A CN 1631735A
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Abstract
the invention disclose a food preserve and pack method including the following steps: 1) deliver the conjoined package box with the food inside to the packing, sealing and cutting area; 2) the sealing and cutting device (2) presses on the film coating so that the film and the support device will surround the foods and forms a seal cavity; (3) the air pumper evacuates; then pumper aerates into the cavity with protective gases. 4) the sealing and cutting device (2) pressure heat seals the cavity after the aerating; 5)the fluctuating pressure device(1) cuts the package box from the film coating; 6) the deliver mechanism delivers out the sealed package box. Above process including deliver in, locate, film coating press, evacuate, aerate, heat seal, cutand deliver out all finish continuously on a single machine. Each process is controlled by control logic made up of relays or PLC. The invention not only saves the package material, lowers the cost, enhance the efficiency but greatly varies the package patterns, and the preservation is effective and environmental,
Description
1, technical field:
The present invention relates to a kind of packaging for foodstuff and fresh-keeping method, especially a kind ofly can pack method with controlled atmosphere, belong to the innovative technology of packaging for foodstuff and preservation method baking based food.
2, background technology:
Characteristics such as cake food (comprising Chinese style and Western-style) has a long history and culture, and is changeable with its shape, various in style, and taste is different are the traditional foods that is loved by the people.But because moisture and fat content, are very easy to mildew and rotten than higher, the shelf-life is shorter.
Comparatively general cake food (for example moon cake for the Mid-autumn Festival) fresh-preserving packing method of present domestic application is pocket type (adding an oxygen absorbent) packing method, i.e. " bag film ten plastics collets ten oxygen absorbents ".Its fresh keeping principle is as follows: in a relative sealed space, utilize oxygen absorbent to consume oxygen free gas in the seal cavity, make the content of oxygen in the sealed package environment reach safety value (being commonly called as hypoxemia or anaerobic state), reach fresh-keeping effect with this.Though this packing method is widely adopted in the industry cycle at present, it has the following disadvantages:
1) this method waste packing and manpower increase cost
With the moon cake for the Mid-autumn Festival is example, because the plastic bag surface smoother softness of pocket type independent packaging, food slides in the external packing box of packing into easily, influences outward appearance and appearance.Therefore, dress must add collet during box in addition or adorn box with an individual packets in addition and fix.And because cake all is food softer, easy deformation, bag type package is very easy to slip or deformation in compression when stacking, and therefore has to increase in addition fixed pedestal of other interval insulants.So not only increase the cost of raw material of packing, and increased the operation and the human cost of packing.Therefore, adopt pocket type (adding oxygen absorbent) packing method can think a kind of waste packing and manpower, increase the packing method of cost.
2) product design that adopts this method to pack out single, be unfavorable for selling
Be subjected to the restriction of existing wrapping machine function, the profile of bag type package is confined to rectangle, and it is exactly square that the cake final packaging of Any shape comes out not to be rectangular, and the style variation range is less, has suppressed the various characteristics of cake shape of food.Owing to most of cakes, bake based food production commercial city and adopt bag type package, thereby cause product design very identical, depend merely on the packaging bag design and color and distinguish, be unfavorable for products innovation and sale.
3) product that adopts this method to pack the out risk height that goes mouldy
At present cake, bake based food fresh-keepingly be used for reaching fresh-keeping effect simply by virtue of oxygen absorbent.In case oxygen absorbent lost efficacy, food especially will go mouldy at short notice such as the food that moon cake etc. is had relatively high expectations to fresh-keeping effect.After oxygen absorbent was exposed in the air, because of the oxygen that absorbs the air Shen lost efficacy gradually, not surpassing 100 minutes at most will be entirely ineffective.When adding oxygen absorbent in packing of product process, oxygen absorbent must be exposed to the air Shen for some time, thereby requires to seal in the short as far as possible time, otherwise will lose efficacy.And whether oxygen absorbent lost efficacy, and can't differentiate only according to naked eyes, and therefore, if the oxygen absorbent that manufacturer packs into and lost efficacy, moon cake will go mouldy in a short time.Adopt bag type package, the food production merchant uses pillow type packing machine basically for guaranteeing production efficiency.And pillow type packaging what seal that the limit adopts is back of the body envelope form, the sealing form has a significant disadvantages, much more two-layer the heat-sealing film at when promptly sealing because intermediary interface place, packaging bag both sides is than both sides, therefore when it seals, be subjected to factor affecting such as spread of voltage, equipment quality, occurring the intermediary interface place easily seals not tight situation usually.In case so, the oxygen absorbent in the packaging bag (box) will lose effect at short notice, thereby the food that causes wrapping into goes mouldy in a short time.Therefore, adopt pocket type (adding oxygen absorbent) packing, the risk of going mouldy of food is higher.
4) narrow application range, fresh-keeping cost height
Oxygen absorbent can only suppress in the packaged food growth of happiness oxygen bacterium, and the mould that also can grow to not aerobic gas (as anaerobe etc.) can't suppress, food in case in packaging process by this type of mould contamination, then oxygen absorbent effectively also can mildew.Therefore, the fresh-keeping Applicable scope of oxygen absorbent is narrower, and at present the price of oxygen absorbent accounts for packing cost 1/4th nearly, and cost is higher.
5) lack the feature of environmental protection
Holder and PVDC film in the PVC that pocket type independent packaging is at present generally used, these packing all can produce harmful carcinogen---dioxin when reclaiming burning.Therefore, lack the feature of environmental protection.
3, summary of the invention:
The objective of the invention is to overcome above-mentioned shortcoming and provide a kind of and not only can save packing, reduce packing cost, enhance productivity, and changeable, the good refreshing effect of container dimensions style, the risk of going mouldy reduces, and is applied widely, is beneficial to the packaging for foodstuff of environmental protection and fresh-keeping method.The present invention has good economic benefit and social benefit.
Packaging for foodstuff of the present invention and fresh-keeping method include the following step:
1) the conjuncted packing of food will be housed at the bottom of box be transported to packing, envelope cut position;
2) sealing-cutting device (2) is pushed down film, and film and bearing device (5) surround food to be packaged, form an annular seal space;
3) air extractor (4) vacuumizes; Vacuumize rear inflation apparatus (6) and in annular seal space, charge into atmosphere gas again;
4) finish and take out inflation back sealing-cutting device (2) pressurized heat involution;
5) pressurized heat is honored as a queen, and adopts transformation power apparatus (1) will pack end box, packing film cut-out;
6) box was sent at the bottom of conveying mechanism (3) will seal the packing that cuts.
Above-mentioned steps 3) atmosphere gas that charges into is nitrogen, carbon dioxide or its miscellaneous gas.
Above-mentioned steps 3), under the prerequisite that satisfies thin film work intensity, can repeatedly take out and fill atmosphere gas if fresh-keeping effect is had higher requirements.
The line number of box is N at the bottom of the above-mentioned conjuncted packing, and columns is M.
Above-mentioned steps 4) sealing-cutting device (2) can seal as required cut out box at the bottom of the conjuncted packing be shaped as circle, ellipse, heart, square, hexagon and star.
Above-mentioned steps 4) and also can be provided with between the step 5) or between step 5) and the step 6) and beat a sign indicating number operation.
Above-mentionedly send to, location, press mold, bleed, inflation, heat sealing, cut off, send, beat each operation such as sign indicating number and on an equipment, finish continuously; Control logic control or employing PLC control that each operation is made up of relay.
Above-mentioned steps 3) the same station that is breaking at of box and packing film is realized at the bottom of the pressurized heat involution of taking out inflation, step 4), the packing of step 5).
Above-mentioned steps 5) can cut off packing end box and packing film simultaneously, or only cut off packing film.
Box is made by high separative plastic sheet or high-barrier High molecular material at the bottom of the above-mentioned packing; Packing film is the high-barrier sealing film.
The present invention compared with prior art has following characteristics:
1) employing is conjuncted box-packaged
The present invention once processes a plurality of packing boxes simultaneously, and the production efficiency height is convenient to adopt the continuous mode of production, and helps packing the variation of style.
2) cost of saving packing and manpower
The present invention adopts conjuncted box-packaged, can cut into independent or conjuncted packing as required, need not add collet or individual packets dress in addition and just can be fixed in the packing box, need not also when stacking to use that other materials just can directly support and crushing food not, thus the saving packing.Compare with pocket type independent packaging method, the present invention can save integrated cost more than 25%; And owing to can adopt conjuncted packing, (need not install individual packets dress box again additional) in the packing box of can directly packing into after sealing, packaging process reduces, thereby has improved work efficiency.Compare with pocket type independent packaging method, labor and material saving of the present invention has good economic benefit.
3) the container dimensions style is quick and various
The present invention supporting collet material adopt multilayer high barrier material or other High molecular material to make multilayer high separative plastic sheet (as PP/ADH/EVOH/ADH/PP, PS/ADH/EVOH/ADH/PS) etc.These materials can be shaped to different shape as required, and sealing film on simultaneously can the various pattern of design and printing.In addition, cutting film with existing does not cut the packing method of substrate packing box (as common capper) and compares, method proposed by the invention can be carried out part (all) cut-out or half disconnected (or conjuncted) packing box and packaging film as required, can also only cut off or half disconnected (or conjuncted) film, the packaging external appearance that envelope cuts out is clean and tidy, and can cut off out as required that different styles are adopted and, owing to use single station design of uniqueness of the present invention, only need the more proprietary composite die of transducer set the present invention, but entire package profile style at high speed (about 20 minutes) is changeable arbitrarily.With respect to bag type package, adopt this method packaged products, can realize that the container dimensions style is quick and various, enrich the outward appearance variety of cake food, can effectively avoid the identical phenomenon of product, help production marketing.
4) risk of going mouldy reduces
The present invention is used high-barrier packaging material owing to adopt air regulating fresh-keeping method, even do not use oxygen absorbent, also can reach fresh-keeping effect preferably.Its principle is as follows, as required the food in the packing box is carried out the single or multiple gas replacement and handles, and makes the oxygen in the box-packaged space ease down to safety value, and the content of protective gas (can prepare by different proportion as required) reaches required value.Certainly, user's oxygen absorbent of also can packing into simultaneously according to demand reaches the fresh-keeping effect of double insurance.In addition, owing to seal film during packaging seal of the present invention and collet is in same plane, thickness is even, hot sealing device heating and pressure are average, and seal and scribble hot melt adhesive in the film, therefore can reach desirable sealing effect, with respect to bag type package, seal the probability that does not sternly take place and greatly reduce.In conjunction with the advantage of above two kinds of methods, adopt the present invention's packing, the risk of going mouldy of cake food greatly reduces.
5) applied widely, fresh-keeping cost is low
The same pocket type of the present invention (adding oxygen absorbent) packing method is compared, can be as required, and the gas that charges into different proportion can suppress the growth of (comprising happiness oxygen bacterium and anaerobe etc.) of a greater variety of moulds in the particular space to adapt to the fresh-keeping requirement of variety classes food.Thereby have wider usage space, and the cost of the protectiveness filling gas of the present invention's employing is far below oxygen absorbent.
6) environmental protection
The present invention adopt authorized by state be convenient to recycle, the environment-friendly package material of reconstituted circularly such as PP, PS, PET, EVOH etc., compare with PVDC film materials such as (all can produce carcinogen---dioxin during burning) with the interior holder of PVC that pocket type independent packaging is at present generally used, have good environment protecting and social benefit.
The present invention not only can save packing, reduces packing cost, enhance productivity, and changeable, the good refreshing effect of container dimensions style, be a kind of convenient and practical, be beneficial to the packaging for foodstuff of environmental protection and fresh-keeping method, it has good economic benefit and social benefit.
4, description of drawings:
Fig. 1～Fig. 3 is a fundamental diagram of the present invention;
Fig. 4 is the scheme drawing before 3 * 3 conjuncted collet envelopes are cut;
Fig. 5 is the scheme drawing after 3 * 3 conjuncted collet envelopes are cut;
Fig. 6 is the scheme drawing of various container dimensions styles.
5, the specific embodiment:
Packaging for foodstuff of the present invention and fresh-keeping method include the following step:
1) the conjuncted packing of food will be housed at the bottom of box be transported to packing, envelope cut position;
2) sealing-cutting device (2) is pushed down film, and film and bearing device (5) surround food to be packaged, form an annular seal space;
3) air extractor (4) vacuumizes; Vacuumize rear inflation apparatus (6) and in annular seal space, charge into atmosphere gas again;
4) finish and take out inflation back sealing-cutting device (2) pressurized heat involution;
5) pressurized heat is honored as a queen, and adopts transformation power apparatus (1) will pack end box, packing film cut-out;
6) box was sent at the bottom of conveying mechanism (3) will seal the packing that cuts.
Above-mentioned steps 3) atmosphere gas that charges into is nitrogen, carbon dioxide or its miscellaneous gas.
Above-mentioned steps 3), under the prerequisite that satisfies thin film work intensity, can repeatedly take out and fill atmosphere gas if fresh-keeping effect is had higher requirements.
The line number of box is N at the bottom of the above-mentioned conjuncted packing, and columns is M.
Above-mentioned steps 4) sealing-cutting device (2) can seal as required cut out box at the bottom of the conjuncted packing be shaped as circle, ellipse, heart, square, hexagon and star.
Above-mentioned steps 4) and also can be provided with between the step 5) or between step 5) and the step 6) and beat a sign indicating number operation.
Above-mentionedly send to, location, press mold, bleed, inflation, heat sealing, cut off, send, beat each operation such as sign indicating number and on an equipment, finish continuously; Control logic control or employing PLC control that each operation is made up of relay.
Above-mentioned steps 3) the same station that is breaking at of box and packing film is realized at the bottom of the pressurized heat involution of taking out inflation, step 4), the packing of step 5).
Above-mentioned steps 5) can cut off packing end box and packing film simultaneously, or only cut off packing film.
Box is made by high separative plastic sheet or high-barrier High molecular material at the bottom of the above-mentioned packing; Packing film is the high-barrier sealing film.
Adopting before the present invention packs, need design and make box at the bottom of the conjuncted packing (N in 1～30 scope * M combination in any, N is a line number, M is a columns) according to demand, at the bottom of the conjuncted packing of then food being packed in the box.
Embodiment 1:
Present embodiment is the process that the continous way packing is produced:
1), exactly box at the bottom of the conjuncted packing to be packaged is transported in the inflation, the bearing device (5) in the envelope cut position of wrapping machine by the feedway (3) of wrapping machine.With diameter specifications is that the packaged food of 50～100mm is example, can carry at the bottom of the conjuncted packing of being made up of 1～20 independent packaging box that differs in size one in box at every turn.During feedway (3) feeding, film rolling is sent device (7) synchronization action thereupon.
2) stop after packing end box drops to the position of setting with bearing device (5).
3) under the promotion of transformation power apparatus (1), sealing-cutting device (2) presses down.The press mold frame of divinatory symbol cutting apparatus (2) is at first pushed down film, and film and bearing device (5) surround food to be packaged like this, thereby form an annular seal space.Then, air extractor (4) vacuumizes; Finish vacuumize the action rear inflation apparatus (6) charge into atmosphere gass such as nitrogen, carbon dioxide or miscellaneous gas.If fresh-keeping effect is had higher requirements, under the prerequisite that satisfies thin film work intensity, can repeatedly take out and fill atmosphere gas.
4) transformation power apparatus (1) continues descendingly, makes sealing-cutting device (2) continue to press down to carry out heat sealing thereupon, and transformation power apparatus (1) transformation simultaneously makes sealing-cutting device (2) increase pressure more than 10 times suddenly.Utilize corresponding combination cutting die this moment, cuts off the joining limit of sealing of box at the bottom of film and the conjuncted packing simultaneously.Then, sealing-cutting device (2) is returned to original position under the effect of transformation power apparatus (1).
Because box all is to come design-calculated according to required shape is corresponding at the bottom of seal mould and combination cutting die and the conjuncted packing, therefore, changes the independent packaging pattern that composite die and conjuncted collet just can process arbitrary shape.
5) bearing device (5) raises collet to the home position, and feedway (3) will seal independence (or conjuncted) packing that cuts and send then.Feedway (3) is transported to box at the bottom of the conjuncted packing of the next one on the corresponding position when sending independent (or conjuncted) packing box, the next circulation of beginning.
The above carries out embodiment of quantity-produced for adopting the present invention.Producing owing to discontinuous formula packing is the special case that continuity is produced, so the present invention also can be applicable in the production of discontinuous formula packing.
Embodiment 2:
Present embodiment is the process that discontinuous formula packing is produced
1) by artificial or alternate manner with conjuncted packing to be packaged at the bottom of box be placed on the inflation of wrapping machine, the bearing device (5) in the envelope cut position.
2) box stops to drop to the position of setting with bearing device (5) after at the bottom of the conjuncted packing.
3) under the promotion of transformation power apparatus (1), sealing-cutting device (2) presses down.The press mold frame of sealing-cutting device (2) is at first pushed down film, and film and bearing device (5) surround food to be packaged like this, thereby form an annular seal space.Then, air extractor (4) vacuumizes; Finish vacuumize the action rear inflation apparatus (6) charge into atmosphere gass such as nitrogen, carbon dioxide or miscellaneous gas.If fresh-keeping effect is had higher requirements, under the prerequisite that satisfies thin film work intensity, can repeatedly take out and fill atmosphere gas.
4) transformation power apparatus (1) continues descendingly, and just sealing-cutting device (2) continues to press down thereupon and carries out heat sealing, and transformation power apparatus (1) transformation simultaneously makes sealing-cutting device (2) increase pressure more than 10 times suddenly.Utilize corresponding combination cutting die this moment, cuts off the joining limit of sealing of box at the bottom of film and the conjuncted packing simultaneously.Then, sealing-cutting device (2) is returned to original position under the effect of transformation power apparatus (1).
5) box was to the home position at the bottom of bearing device (5) raised conjuncted packing, adopted artificial then or alternate manner will seal independence (or conjuncted) packing that cuts and take out.
The above embodiment for adopting the present invention to carry out discontinuous production.
Claims (10)
1, a kind of packaging for foodstuff and fresh-keeping method is characterized in that including the following step:
1) the conjuncted packing of food will be housed at the bottom of box be transported to packing, envelope cut position;
2) sealing-cutting device (2) is pushed down film, and film and bearing device (5) surround food to be packaged, form an annular seal space;
3) air extractor (4) vacuumizes; Vacuumize rear inflation apparatus (6) and in annular seal space, charge into atmosphere gas again;
4) finish and take out inflation back sealing-cutting device (2) pressurized heat involution;
5) pressurized heat is honored as a queen, and adopts transformation power apparatus (1) will pack end box, packing film cut-out;
6) box was sent at the bottom of conveying mechanism (3) will seal the packing that cuts.
2, according to described packaging for foodstuff of claim 1 and fresh-keeping method, it is characterized in that above-mentioned steps 3) atmosphere gas that charges into is nitrogen, carbon dioxide or its miscellaneous gas.
3, according to described packaging for foodstuff of claim 1 and fresh-keeping method, it is characterized in that above-mentioned steps 3) if fresh-keeping effect is had higher requirements, under the prerequisite that satisfies thin film work intensity, can repeatedly take out and fill atmosphere gas.
4, according to described packaging for foodstuff of claim 1 and fresh-keeping method, it is characterized in that the line number of box is N at the bottom of the above-mentioned conjuncted packing, columns is M.
5, according to each described packaging for foodstuff of claim 1 to 4 and fresh-keeping method, it is characterized in that above-mentioned steps 4) sealing-cutting device (2) can seal as required cut out box at the bottom of the conjuncted packing be shaped as circle, ellipse, heart, square, hexagon and star.
6, according to described packaging for foodstuff of claim 5 and fresh-keeping method, it is characterized in that above-mentioned steps 4) and step 5) between or also can be provided with between step 5) and the step 6) and beat a sign indicating number operation.
7, packaging for foodstuff according to claim 6 and fresh-keeping method is characterized in that above-mentionedly sending to, location, press mold, bleed, inflation, heat sealing, cut off, send and beat each operation of sign indicating number and finish continuously on an equipment; Control logic control or employing PLC control that each operation is made up of relay.
8, packaging for foodstuff according to claim 7 and fresh-keeping method is characterized in that above-mentioned steps 3) the packing of the pressurized heat involution of taking out inflation, step 4), step 5) at the bottom of the same station that is breaking at of box and packing film realize.
9, packaging for foodstuff according to claim 8 and fresh-keeping method is characterized in that above-mentioned steps 5) can cut off packing end box and packing film simultaneously, or only cut off packing film.
10, packaging for foodstuff according to claim 9 and fresh-keeping method, it is characterized in that above-mentioned packing at the bottom of box make by high separative plastic sheet or high-barrier High molecular material; Packing film is the high-barrier sealing film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510002388 CN1631735A (en) | 2005-02-02 | 2005-02-02 | Packaging and fresh-keeping method for foodstuff |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510002388 CN1631735A (en) | 2005-02-02 | 2005-02-02 | Packaging and fresh-keeping method for foodstuff |
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| Publication Number | Publication Date |
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| CN1631735A true CN1631735A (en) | 2005-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510002388 Pending CN1631735A (en) | 2005-02-02 | 2005-02-02 | Packaging and fresh-keeping method for foodstuff |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009103193A1 (en) * | 2008-02-21 | 2009-08-27 | 上海尼禄国际贸易有限公司 | A recyclable, multi-functional, three-dimensional, sealed packing material and a preparation method thereof |
| CN102101538A (en) * | 2010-11-22 | 2011-06-22 | 王进 | Vacuum packaging method of smoked chicken and series products |
| CN102448333A (en) * | 2009-05-20 | 2012-05-09 | 亚历山大·米特迈尔 | Method for flavor-treating foodstuffs provided in a packaging |
| CN102514753A (en) * | 2012-01-09 | 2012-06-27 | 湖北珍肴食品有限公司 | Method for improving bread packaging technology with air leakage |
| CN104210713A (en) * | 2014-09-03 | 2014-12-17 | 吉林省农业机械研究院 | Full-automatic dry tofu vacuum fresh-keeping packaging technology and full-automatic dry tofu vacuum fresh-keeping packaging device |
| CN105029634A (en) * | 2015-09-01 | 2015-11-11 | 广州玺明机械科技有限公司 | Gas-adjustment freshness-maintaining packaging method for cold chain central kitchen |
| CN106490174A (en) * | 2015-09-07 | 2017-03-15 | 孟庆东 | A kind of bean curd and preparation method thereof |
-
2005
- 2005-02-02 CN CN 200510002388 patent/CN1631735A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009103193A1 (en) * | 2008-02-21 | 2009-08-27 | 上海尼禄国际贸易有限公司 | A recyclable, multi-functional, three-dimensional, sealed packing material and a preparation method thereof |
| CN102448333A (en) * | 2009-05-20 | 2012-05-09 | 亚历山大·米特迈尔 | Method for flavor-treating foodstuffs provided in a packaging |
| CN102101538A (en) * | 2010-11-22 | 2011-06-22 | 王进 | Vacuum packaging method of smoked chicken and series products |
| CN102514753A (en) * | 2012-01-09 | 2012-06-27 | 湖北珍肴食品有限公司 | Method for improving bread packaging technology with air leakage |
| CN104210713A (en) * | 2014-09-03 | 2014-12-17 | 吉林省农业机械研究院 | Full-automatic dry tofu vacuum fresh-keeping packaging technology and full-automatic dry tofu vacuum fresh-keeping packaging device |
| CN105029634A (en) * | 2015-09-01 | 2015-11-11 | 广州玺明机械科技有限公司 | Gas-adjustment freshness-maintaining packaging method for cold chain central kitchen |
| CN106490174A (en) * | 2015-09-07 | 2017-03-15 | 孟庆东 | A kind of bean curd and preparation method thereof |
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