CN102673078A - Candy wrapping capable of reducing oxygen permeability and preparation method thereof - Google Patents
Candy wrapping capable of reducing oxygen permeability and preparation method thereof Download PDFInfo
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- CN102673078A CN102673078A CN201210147467XA CN201210147467A CN102673078A CN 102673078 A CN102673078 A CN 102673078A CN 201210147467X A CN201210147467X A CN 201210147467XA CN 201210147467 A CN201210147467 A CN 201210147467A CN 102673078 A CN102673078 A CN 102673078A
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Abstract
The invention discloses a candy wrapping capable of reducing oxygen permeability and a preparation method thereof. The candy wrapping comprises three layers of membrane materials, which are respectively made from PET (Polyethylene Terephthalate), KPET (Kaolin Polyethylene Terephthalate) and PE (Poly Ethylene). According to the invention, through the blocking wrapping of the three layers of materials, the oxygen permeability of the candy wrapping material can be greatly reduced, and the blocking performance can be improved, so that a goal of prolonging shelf lives of nut candies is achieved. Data acquired through testing shows that oxygen permeability of the candy wrapping disclosed by the invention can be controlled below 6.
Description
Technical field
The present invention relates to a kind of candy wrapping that reduces oxygen transmission rate and preparation method thereof, belong to the candy wrapping field.
Background technology
Candy is liked by the consumer deeply as popular food, keep growth momentum faster always.The kind of candy is a lot, but main component all is granulated sugar, maltose and milk powder, milk wet goods, and what have also is added with essence, edible glue or starch etc.
The defencive function of candy wrapping is related to the quality of candy, because the candy self component exists than big-difference, so be directed against dissimilar candies, the selection of packaging material requires also inequality.The candy that for example water content is low is prone to moisture absorption and makes product send out melt, sand return; The high candy of water content then is prone to drying shrinkage, goes mouldy, and behind the starch, milk wet goods contact with oxygen gas oxidation and rotten takes place easily; Contain long commodity of grease and shelf cycle and need the high-barrier packing, the object of high-barrier mainly is an oxygen., be easy to occur the grease Kazakhstan and lose or mouldy phenomenon owing to content of oil and grease in the kernel is very high like the nuts and kernels candy, shortened the shelf life of product greatly.Because candy wrapping is significant for sale, the preservation of candy.Therefore, the choke moisture-proof function of candy wrapping should be paid attention to especially.
It is base material that the composite membrane that is used for packaging for foodstuff at present is generally film materials such as base material such as plastics, paper, the metal of two kinds of different materials, the packaging film of a kind of sandwich construction that is composited through various different modes.The composite membrane that is used for packaging for foodstuff is divided into five types by product structure; Be paper/composite plastic film, plastic/plastic composite membrane, plastic/aluminium paper tinsel/composite plastic film, paper/plastic/aluminium paper tinsel // composite plastic film and other composite membranes, like plating silicon composite membrane with special construction.
Facts have proved in recent years, the barrier package that composite membrane is formed needs systematized control in many-sides such as oxygen scavenger type, packing material pattern, potting property, supplier's self-management and production process controls, and each link all is important.All can make the barrier package effect that is difficult to bring into normal play as long as link is made mistakes, thereby influence product quality.
At present, the composite membrane barrier package that is used for candy wrapping is generally the two-layer composite packaging material of coating PVDC (polyvinylidene chloride), for example KPET and CPP.Its typical structure of composite membrane is: main stress layer/barrier layer/hot sealing layer/strippable coating.Wherein, main stress layer is PS, HIPS, PP, PET etc.; Barrier layer is EVOH, PA, PVDC etc.; Hot sealing layer is HDPE, LDPE, LLDPE, CPP etc.; Strippable coating is PP etc.Need add one deck adhesive linkage like the resin compatible difference between the adjacent layer.The packaging material of the two-layer composite membrane that these are commonly used is easy to form failure risk in coating, printing and recombination process, also there are weak point in the stability of its obstructing capacity and uniformity, are embodied in:
(1) the PVDC coated substrate is prone to generation pinprick and blind spot because coating process and coating weight different are prone to cause the coating layer became uneven even, influences the barrier property of base material.
(2) two-layer packaging material is in printing process, and coated face is printing surface, and printing ink in the printing and solvent will corrode coating layer, forms more non-uniform faces, pinprick and blind spot, more influences barrier property.
(3) machinery because the printing coating layer directly contacts with the multiple tracks carrying roller, takes place and damages in recombination process in two-layer packaging material easily, influences barrier property.
Through analytical test, much more more the failure risk of the packaging material of two-layer composite membrane possibly be to pack material pattern and supplier to raw-material control level.In case coating supplier and printing composite packaging material supplier lack necessary detection means even are negligent of quality control, possibly be fatal concerning the user of packaging material.And the oxygen transmission rate that test data shows this two-layer composite packaging material difficulty is lower than 7, and how between 8-12, the result is higher.
Therefore, those skilled in the art is devoted to develop a kind of compound barrier package that can reduce the food oxygen transmission rate effectively.
Summary of the invention
Because the above-mentioned defective of prior art, technical problem to be solved by this invention provides a kind of compound barrier package that can reduce the candy wrapping oxygen transmission rate effectively.
For realizing above-mentioned purpose, one aspect of the present invention provides a kind of barrier package that uses three-layer-material, has significantly reduced the oxygen transmission rate of candy wrapping material itself, improves its barrier property, prolongs this target of nuts and kernels candy shelf life thereby reach.
PE (polyethylene) blocks water moist good, is a kind of health, packaging material that security is good.Have good chemical stability, certain mechanical tension and tearing toughness are arranged, pliability and lower temperature resistance are good, and machine-shaping is convenient; Its goods are versatile and flexible, and heat sealability is fine.
PET (PET) is milky or polymer light yellow, highly crystalline, and surface smoothing is glossy.In wider temperature range, have excellent physical and mechanical properties, long-term serviceability temperature can reach 120 ℃, and electrical insulating property is good, even under the high temperature high frequency, its electrical property is still better; But its corona resistance is relatively poor.
KPET is to be base material with PET (PETG), and the plastic foil of single face coating high-barrier PVDC (is the copolymer of main component with the vinylidene chloride) coating also can print on its coating layer.Be usually used in package compound, printing element.
In the candy wrapping of reduction oxygen transmission rate of the present invention, use PET, KPET, three layers of composite of PE to solve above-mentioned technical problem.The principle of the present invention through coating layer is separated with printed layers is intended to eliminate in printing process, and the printing ink in the printing and solvent corrosion coating layer consequently form the shortcoming of non-uniform face, pinprick and blind spot.
And the improvement adjustment through set composite makes KPET and PE compound tense, and KPET material coated face does not contact with carrying roller as far as possible, and generation machinery is damaged when having reduced the printing coating layer to greatest extent and directly contacting with the multiple tracks carrying roller, influences the risk of barrier property.
In specific embodiments of the present invention, the candy wrapping that reduces oxygen transmission rate comprises the trilamellar membrane material that material is respectively PET, KPET, PE.Preferably, the concrete structure of said candy wrapping is: the intermediate layer is PET, and top layer and nexine are respectively KPET and PE, and said top layer and nexine overlay on the two sides in said intermediate layer respectively.
On the other hand, the present invention also provides a kind of preparation method who reduces the candy wrapping of oxygen transmission rate, and said method comprises compound working procedure, and said compound working procedure comprises the steps:
At first, apply one deck adhesive in the one side of said PET film material with silk screen print method, the PET film material that will scribble adhesive then is at 60-80 ℃ of oven dry 48h; Secondly, under 50-60 ℃, carry out the one side that said KPET film material and above-mentioned PET film material scribble adhesive compound;
Once more, apply one deck adhesive with silk screen print method at the another side of above-mentioned PET film material, with the PET film material that scribbles adhesive at 60-80 ℃ of oven dry 48h; Then, under 50-60 ℃, the one side that said PE film material and said PET film material are scribbled adhesive is carried out compound, obtains the PET/KPET/PE compound film material;
Said adhesive is that organic solvent is the solvent borne polyurethane adhesive of ethyl acetate or ethanol.
Preferably, said method comprises also and is used for the printing process that on said PET film material or PE film material, prints that said printing process is positioned at before the said compound working procedure.
Preferably, said method also comprises the branch cutting process, and cutting process was positioned at after the said compound working procedure in said minute, and said minute cutting process is divided into needed width for the laminated film of wide cut that compound working procedure is made by the width requirement of bag and batches again.
Preferably; Said method also comprises heat seal bag operation; Said heat seal bag maker tagmeme is after said minute cutting process, and said heat seal bag operation makes it become package bag for the film material that will divide cutting process to make lies on the bag unit through the heat seal effect; Then, through the die-cut operation that finally becomes the individual packaging bag product.
In preparation method of the present invention, solvent-based adhesive that the adhesive of being selected for use in the compound working procedure is known in the art or aqueous adhesive.Like the solvent-based adhesive of being selected for use is that macromolecular compounds such as natural rubber, synthetic rubber, synthetic resin are dissolved in organic solvent, and the adhesive of processing; It solidifies by the volatilization of solvent accomplishes.The water-based adhesive of being selected for use is white glue with vinyl and water-soluble poval architecture adhesion agent etc.
Because the packing of method of the present invention preparation is because the packing of candy, therefore, the organic solvent ethyl acetate or the ethanol of solvent-based adhesive.
In preferred embodiments of the present invention, the solvent-based adhesive of being selected for use is the solvent borne polyurethane adhesive; Wherein, organic solvent is ethyl acetate or ethanol.
Printing process of the present invention, branch cutting process and heat seal bag are this area method commonly used.Wherein, the solvent in the printing ink is ethyl acetate or ethanol in the printing process.
The compound barrier package of reduction oxygen transmission rate of the present invention uses the compound barrier package of PET/KPET/PE three-layer-material; Efficiently solve two-layer composite packaging material in coating, printing and recombination process, because of the failure risk that forms causes the stability of obstructing capacity and this shortcoming of lack of uniformity.The compound barrier package of three-layer-material can significantly reduce the oxygen transmission rate of material itself, improves the performance of its blocking oxygen, prolongs this target of nuts and kernels candy shelf life thereby reach.Through test, data show that the oxygen transmission rate of compound barrier package of the present invention can be controlled at below 6, be two-layer composite packaging oxygen transmission rate 1/2, even 1/5, it is very obvious to improve effect.
The specific embodiment
Embodiment 1
1) printing process: through the multicolour photogravure roller monochromatic pattern is imprinted on the surface of PE film material, oven dry removes the ethyl acetate solvent in the printing-ink, and makes ink solidification then.
2) compound working procedure: at first, apply one deck adhesive in the one side of PET film material with silk screen print method, the PET film material that will scribble adhesive then is at 60 ℃ of oven dry 48h; Secondly, under 50 ℃, carry out the one side that KPET film material and above-mentioned PET film material scribble adhesive compound;
Once more, apply one deck adhesive with silk screen print method at the another side of above-mentioned PET film material, with the PET film material that scribbles adhesive at 65 ℃ of oven dry 48h; Then, under 50 ℃, the one side that does not scribble adhesive with the one side of pattern and said PET film material of PE film material is carried out compound, obtain the PET/KPET/PE compound film material;
Said adhesive is the solvent borne polyurethane adhesive of ethyl acetate.
3) divide cutting process: laminated film that will the above-mentioned wide cut that makes is divided into 20cm * 30cm width and also batches again.
4) heat seal bag: the film material that above-mentioned branch is cut lies on the bag unit, makes it become package bag through the heat seal effect, then, and through the die-cut process that finally becomes the individual packaging bag product.
Compound barrier package to this embodiment carries out the oxygen transmission rate detection, and detection method is an equal-pressure method: be divided into two independently air flow systems with film to be detected, and the to be measured gas (oxygen) of a side for flowing, opposite side is a flowing nitrogen.The air pressure that detects the film both sides equates; Because film to be detected both sides concentration of oxygen is different, thereby oxygen is from the infiltration of high concentration one side direction low concentration one side, thereby draws the transmitance of oxygen via linear transducer.Through detecting, the oxygen transmission rate of the compound barrier package of present embodiment is 3cc/m
2/ 24hr.
Embodiment 2
1) printing process: through the multicolour photogravure roller monochromatic pattern is imprinted on the surface of PET film material, oven dry removes the alcohol solvent in the printing-ink, and makes ink solidification then.
2) compound working procedure: at first, apply one deck adhesive in the one side that is printed on pattern of PET film material with silk screen print method, the PET film material that will scribble adhesive then is at 75 ℃ of oven dry 48h; Secondly, under 60 ℃, carry out the one side that KPET film material and above-mentioned PET film material scribble adhesive compound;
Once more, apply one deck adhesive with silk screen print method at the another side of above-mentioned PET film material, with the PET film material that scribbles adhesive at 75 ℃ of oven dry 48h; Then, under 60 ℃, the one side that PE film material and said PET film material are scribbled adhesive is carried out compound, obtains the PET/KPET/PE compound film material;
Said adhesive is the solvent borne polyurethane adhesive of ethanol.
3) divide cutting process: laminated film that will the above-mentioned wide cut that makes is divided into 20cm * 30cm width and also batches again.
4) heat seal bag: the film material that above-mentioned branch is cut lies on the bag unit, makes it become package bag through the heat seal effect, then, and through the die-cut process that finally becomes the individual packaging bag product.
Compound barrier package to this embodiment carries out the oxygen transmission rate detection, and detection method is an equal-pressure method.Through detecting, the oxygen transmission rate of the compound barrier package of present embodiment is 5cc/m
2/ 24hr.
More than describe preferred embodiment of the present invention in detail.The ordinary skill that should be appreciated that this area need not creative work and just can design according to the present invention make many modifications and variation.Therefore, all technical staff in the art all should be in the determined protection domain by claims under this invention's idea on the basis of existing technology through the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (6)
1. a candy wrapping that reduces oxygen transmission rate is characterized in that, said candy wrapping comprises the trilamellar membrane material that material is respectively PET, KPET, PE.
2. the candy wrapping of reduction oxygen transmission rate as claimed in claim 1 is characterized in that, the concrete structure of said candy wrapping is: the intermediate layer is PET, and top layer and nexine are respectively KPET and PE, and said top layer and nexine overlay on the two sides in said intermediate layer respectively.
3. a method for preparing the candy wrapping of reduction oxygen transmission rate according to claim 1 and 2 is characterized in that, said method comprises compound working procedure, and said compound working procedure comprises the steps:
At first, apply one deck adhesive in the one side of said PET film material with silk screen print method, the PET film material that will scribble adhesive then is at 60-80 ℃ of oven dry 48h; Secondly, under 50-60 ℃, carry out the one side that said KPET film material and above-mentioned PET film material scribble adhesive compound;
Once more, apply one deck adhesive with silk screen print method at the another side of above-mentioned PET film material, with the PET film material that scribbles adhesive at 60-80 ℃ of oven dry 48h; Then, under 50-60 ℃, the one side that said PE film material and said PET film material are scribbled adhesive is carried out compound, obtains the PET/KPET/PE compound film material;
Said adhesive is that organic solvent is the solvent borne polyurethane adhesive of ethyl acetate or ethanol.
4. method according to claim 3 is characterized in that, said method comprises also and be used for the printing process that on said PET film material or PE film material, prints that said printing process is positioned at before the said compound working procedure.
5. method according to claim 4; It is characterized in that; Said method also comprises the branch cutting process; Cutting process was positioned at after the said compound working procedure in said minute, and said minute cutting process is divided into needed width for the laminated film of wide cut that compound working procedure is made by the width requirement of bag and batches again.
6. method according to claim 5; It is characterized in that said method also comprises heat seal bag operation, said heat seal bag maker tagmeme is after said minute cutting process; Said heat seal bag operation lies on the bag unit for the film material that will divide cutting process to make; Make it become package bag through the heat seal effect, then, through the die-cut operation that finally becomes the individual packaging bag product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210147467.XA CN102673078B (en) | 2012-05-11 | 2012-05-11 | Candy wrapping capable of reducing oxygen permeability and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210147467.XA CN102673078B (en) | 2012-05-11 | 2012-05-11 | Candy wrapping capable of reducing oxygen permeability and preparation method thereof |
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| CN102673078A true CN102673078A (en) | 2012-09-19 |
| CN102673078B CN102673078B (en) | 2015-03-25 |
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| CN201210147467.XA Active CN102673078B (en) | 2012-05-11 | 2012-05-11 | Candy wrapping capable of reducing oxygen permeability and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103770422A (en) * | 2014-01-23 | 2014-05-07 | 黄山永新股份有限公司 | High-stiffness puncture-resistant low-friction coefficient composite film and preparation method thereof |
| CN103978769A (en) * | 2014-02-27 | 2014-08-13 | 温州市嘉丽隆包装有限公司 | Processing method for high-stiffness heat-insulation foodstuff packaging film and product |
| CN107599460A (en) * | 2017-09-29 | 2018-01-19 | 江苏龙灯博士摩包装材料有限公司 | The tea oil plastic packaging containers and its preparation technology of novel environment friendly multilayer high-barrier |
| CN113002983A (en) * | 2021-02-09 | 2021-06-22 | 广州蓝月亮实业有限公司 | Packaging container and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6247716B2 (en) * | 1983-06-15 | 1987-10-09 | Toyo Boseki | |
| CN201144043Y (en) * | 2007-12-27 | 2008-11-05 | 金誉(河南)包装有限公司 | Environment-friendly food packaging material |
| CN201604899U (en) * | 2009-12-25 | 2010-10-13 | 河南大有塑业发展有限公司 | Three-layer combined film structure |
| WO2011061510A1 (en) * | 2009-11-20 | 2011-05-26 | Sun Chemical B.V. | Gas barrier coatings |
-
2012
- 2012-05-11 CN CN201210147467.XA patent/CN102673078B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6247716B2 (en) * | 1983-06-15 | 1987-10-09 | Toyo Boseki | |
| CN201144043Y (en) * | 2007-12-27 | 2008-11-05 | 金誉(河南)包装有限公司 | Environment-friendly food packaging material |
| WO2011061510A1 (en) * | 2009-11-20 | 2011-05-26 | Sun Chemical B.V. | Gas barrier coatings |
| CN201604899U (en) * | 2009-12-25 | 2010-10-13 | 河南大有塑业发展有限公司 | Three-layer combined film structure |
Non-Patent Citations (4)
| Title |
|---|
| 伍秋涛: "《软包装薄膜材料及应用》", 31 March 2011, 印刷工业出版社 * |
| 日本丝网印刷技术协会编，郑德海郑军明译: "《丝网印刷》", 28 February 1988, 印刷工业出版社 * |
| 李东光主编: "《胶黏剂配方与生产2》", 31 March 2012 * |
| 金银河: "《特种印刷技术及其应用第2版》", 30 January 2008, 印刷工业出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103770422A (en) * | 2014-01-23 | 2014-05-07 | 黄山永新股份有限公司 | High-stiffness puncture-resistant low-friction coefficient composite film and preparation method thereof |
| CN103770422B (en) * | 2014-01-23 | 2015-10-28 | 黄山永新股份有限公司 | High-stiffness puncture-resistant low-friction coefficient composite membrane and preparation method thereof |
| CN103978769A (en) * | 2014-02-27 | 2014-08-13 | 温州市嘉丽隆包装有限公司 | Processing method for high-stiffness heat-insulation foodstuff packaging film and product |
| CN103978769B (en) * | 2014-02-27 | 2016-05-04 | 温州市嘉丽隆包装有限公司 | Food package film processing method of a kind of high-stiffness and thermal insulation and products thereof |
| CN107599460A (en) * | 2017-09-29 | 2018-01-19 | 江苏龙灯博士摩包装材料有限公司 | The tea oil plastic packaging containers and its preparation technology of novel environment friendly multilayer high-barrier |
| CN113002983A (en) * | 2021-02-09 | 2021-06-22 | 广州蓝月亮实业有限公司 | Packaging container and preparation method and application thereof |
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| CN102673078B (en) | 2015-03-25 |
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