CN1743241A - Oxygen-uptake oxygen-resistance type plastic beer bottle cap lining and processing method thereof - Google Patents
Oxygen-uptake oxygen-resistance type plastic beer bottle cap lining and processing method thereof Download PDFInfo
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- CN1743241A CN1743241A CN 200410054283 CN200410054283A CN1743241A CN 1743241 A CN1743241 A CN 1743241A CN 200410054283 CN200410054283 CN 200410054283 CN 200410054283 A CN200410054283 A CN 200410054283A CN 1743241 A CN1743241 A CN 1743241A
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- oxygen
- ethylene
- vinyl alcohol
- alcohol copolymer
- bottle cap
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Abstract
The inner mat material of absorbing and preventing oxygen type beer bottle cap is disclosed. The first layer is obstruct layer, which a film coated by ethyl acetate solution of polyvinylidene chloride. The second layer is oxygen-absorbing obstruct layer, whose substrate is ethylene vinyl alcohol polymer obstruct resin in which the ethhyene content is 29-46%, the oxygen absorbing mother grains distributes in the said substrate, the weight percentage of pyridines and the like oxygen absorbent in the said obstruct resin is 0.0001-0.1%, the moisture of obstruct resin is 0.1-0.3% and the resin density is 1.14-1.21gram/cm3. First resolve polyvinylidene chloride using ethyl acetate solution to a transparent solution, equally spray the solution to coat on the inner surface of cap, which comes into the first obstruct layer by natural drying; secondly on the first obstruct layer the said polymer obstruct resin oxygen-absorbing layer is extruded.
Description
Technical field
The present invention relates to a kind of novel seal packing, refer to oxygen uptake oxygen-resistance type plastic beer bottle cap inner pad material and processing technology especially.
Background technology
The ZL01105218.X patent disclosure a kind of making process of oxygen separating layer of beer bottle cap method, pasty state oxygen barrier material transfer is arrived the bottom inside of vinyl cover by delivery roll, carry out repeatedly successively, the very thin one deck oxygen barrier layer of the inboard formation in the lid end, oxygen barrier layer dries up after placing the very short time voluntarily, the oxygen barrier material of this pasty state has very big fugitiveness, be difficult to form the pad of even rounding, and the pad behind the curing molding does not have desirable intensity.The oxygen barrier layer of pad adopts the polyvinylidene chloride material to make in the existing beer bottle cap.
Domestic iron is that oxygen absorbent has had the history in a lot of years, does not meet food hygiene requirement with the food direct contact but iron is oxygen absorbent, can only be present in packaging for foodstuff by the mode of isolation package.In addition, the oxygen absorbent when the pure water of thermal powerplant is handled is hydrazine and diamine one class normally, obviously also can't be applicable to packaging for foodstuff.Because oxygen has ill-effect to food and drink fresh-keeping, need therefore that exploitation is a kind of to have a food sanitation safe, the oxygen of outside successfully can be intercepted, and the Active Packaging Materials that inner trace oxygen is absorbed.
Summary of the invention
The present invention improves the shortcoming that prior art exists, and a kind of improved oxygen uptake oxygen-resistance type plastic beer bottle cap inner pad material and processing technology thereof are provided.
The object of the present invention is achieved like this, a kind of oxygen uptake oxygen-resistance type plastic beer bottle cap inner pad material, the inner pad material has two layers, one deck is a barrier layer, ethyl acetate solution coat film for polyvinylidene chloride, the second layer is the oxygen-absorbing barrier layer, matrix resin is ethylene-vinyl alcohol copolymer barrier resins EVOH, the ethylene contents 40～46% of ethylene-vinyl alcohol copolymer barrier resins, the oxygen uptake master batch that contains oxygen absorbent is dispersed within the ethylene-vinyl alcohol copolymer matrix barrier resins, the addition of miazines and analogue oxygen absorbent thereof at the percentage by weight of ethylene-vinyl alcohol copolymer barrier resins between 0.0001-0.1%; The moisture Control of ethylene-vinyl alcohol copolymer barrier resins pellet is at 0.1-0.3%; Ethylene-vinyl alcohol copolymer barrier resins density 1.14～1.21 gram/cm
3
The processing technology of above-mentioned oxygen uptake oxygen-resistance type plastic beer bottle cap inner pad material is, the first step, with polyvinylidene chloride with after the ethyl acetate dissolving, form the solution of clear, adopt the mode barrier layer that one deck is very thin of spraying to be coated in the bottle cap inside bottom uniformly, form first floor barrier layer after the natural seasoning; In second step, on first floor barrier layer, adopt the mode that melt extrudes to extrude ethylene-vinyl alcohol copolymer barrier resins oxygen-absorbing barrier layer.
The present invention adopts polyvinylidene chloride and ethylene-vinyl alcohol copolymer barrier resins to do the inner lining material of bottle cap, the oxygen barrier performance of the two is better than tens times to several thousand times in other plastics, and the water vapour permeability of polyvinylidene chloride, ethylene-vinyl alcohol copolymer barrier resins and acrylic resin is all very low.Use inner lining material of the present invention to make the liner of bottle cap, liner is by inside and outside two-layer the composition, and internal layer is a barrier layer, stops oxygen to infiltrate from the bottle cap end face; Skin is the oxygen-absorbing barrier layer, is retained in residual oxygen in the bottleneck and the trace oxygen that extravasates into from bottle in theory when absorbing can, and fresh-keeping effect is better than the common plastics lid greatly.Technology of the present invention changes pastes the coating of clear solution on original basis, can obtain reasonable effect, and the technology that internal layer will intercept with oxygen uptake is integrated, and it is more convenient that technology realizes.The distinctive double layer cushion processing technology of the present invention makes fresh-keeping cover have three kinds of hermetically-sealed constructions, one peelable pad, plain cushion and the sealing of dicyclo pad, has expanded the applicability of fresh-keeping cover to different can factories and different bottle mouth encapsulation.Internal layer is to realize that by solution spraying technology skin is to realize by extrusion molding technology.Use fresh-keeping plastic pilfer proof closure of the present invention to keep antitheft, the high-intensity characteristics of former bottle cap, increased resistance oxygen, the new function of block water vapour and oxygen uptake (promptly fresh-keeping), especially be fit to the fresh-keeping seal package that requires extra high plastic bottled beer, fruit juice, tea beverage etc.Inner casing molding oxygen uptake layer triggers oxygen uptake under high humidity environment, quantity of respiratory oxygen reaches 3 milligrams/.The weight of the plastic bottle closure that use the present invention makes is about 3.2g, very light, have good feel, selection is original, reasonable in design, have splendid gas barrier property and excellent sealing performance, the spraying coating process in the technology of the present invention adopts electrodeless atomizing pump, make and spray evenly, accurately, guaranteed the pliable and tough of polyvinylidene chloride film, plentiful and complete.The present invention is designed contains miazines and analogue oxygen uptake layer is passivation under the condition of normal temperature storage, just the oxygen uptake function just can be intensified under moist and acid condition, and active oxygen is had resorption.Oxygen uptake resistance oxygen packing is the new research forward position of packing, and deoxygenation technology of the present invention helps the brewing merchant is kept the freshness and the local flavor of beer to remove the anti fouling composition of health risk for more time, and the shelf-life that prolongs transportation and produce.
Processing step of the present invention reduces, and technology realizes more succinct practicality, has saved man-hour, has saved raw material, has improved product quality.
The specific embodiment
A kind of oxygen uptake oxygen-resistance type plastic beer bottle cap inner pad material has two layers, one deck is a barrier layer, ethyl acetate solution coat film for polyvinylidene chloride, the second layer is the oxygen-absorbing barrier layer, matrix resin is ethylene-vinyl alcohol copolymer barrier resins EVOH, the ethylene contents 44% of ethylene-vinyl alcohol copolymer barrier resins, the oxygen uptake master batch that contains oxygen absorbent is dispersed within the ethylene-vinyl alcohol copolymer matrix barrier resins, and the addition of miazines and analogue oxygen absorbent thereof accounts for the percentage by weight 0.0007% of ethylene-vinyl alcohol copolymer barrier resins; The moisture Control of ethylene-vinyl alcohol copolymer barrier resins pellet is 0.1%; Ethylene-vinyl alcohol copolymer barrier resins density 1.14 gram/cm
3
The processing technology of above-mentioned oxygen uptake oxygen-resistance type plastic beer bottle cap inner pad material is, the first step, with polyvinylidene chloride with after the ethyl acetate dissolving, form the solution of clear, adopt the mode barrier layer that one deck is very thin of spraying to be coated in the bottle cap inside bottom uniformly, form first floor barrier layer after the natural seasoning; In second step, on first floor barrier layer, adopt the mode that melt extrudes to extrude ethylene-vinyl alcohol copolymer barrier resins oxygen-absorbing barrier layer.Be about to make and be mixed with oxygen absorbent the ethylene-vinyl alcohol copolymer pellet join extruding in the hopper formula drier, after the heating blend by screw rod, material is scraped material into empty bottle cap inner bottom part, then by 24 compacting tool set compression mouldings by the scraper cutter of 24 constant speed runnings.In second step process, the equipment of relevant ethylene-vinyl alcohol copolymer barrier resin layers forming work requires:
Extruder: length-diameter ratio L/D=280;
Screw rod design: CR=4.0; Screw rod divides three sections at least, for supplying with section, compression section and metering section;
Hopper formula drier or hot air circular drying machine 90-110 ℃, technological temperature is controlled between 170-230 ℃;
Filtering net is by 80/120 and 150/50 combination.
Claims (4)
1, a kind of oxygen uptake oxygen-resistance type plastic beer bottle cap inner pad material, it is characterized in that, the inner pad material has two layers, one deck is a barrier layer, ethyl acetate solution coat film for polyvinylidene chloride, the second layer is the oxygen-absorbing barrier layer, matrix resin is the ethylene-vinyl alcohol copolymer barrier resins, the ethylene contents 29～46% of ethylene-vinyl alcohol copolymer barrier resins, the oxygen uptake master batch that contains oxygen absorbent is dispersed within the ethylene-vinyl alcohol copolymer matrix barrier resins, and the addition of miazines and analogue oxygen absorbent thereof accounts for the percentage by weight 0.0001-0.1% of ethylene-vinyl alcohol copolymer barrier resins; The moisture Control of ethylene-vinyl alcohol copolymer barrier resins pellet is at 0.1-0.3%; Ethylene-vinyl alcohol copolymer barrier resins density 1.14～1.21 gram/cm
3
2, according to the processing technology of the described oxygen uptake oxygen-resistance type of claim 1 plastic beer bottle cap inner pad material, it is characterized in that, the first step, with polyvinylidene chloride with after the ethyl acetate dissolving, form the solution of clear, adopt the mode barrier layer that one deck is very thin of spraying to be coated in the bottle cap inside bottom uniformly, form first floor barrier layer after the natural seasoning; In second step, on first floor barrier layer, adopt the mode that melt extrudes to extrude ethylene-vinyl alcohol copolymer barrier resins oxygen-absorbing barrier layer.
3, according to the processing technology of the described oxygen uptake oxygen-resistance type of claim 2 plastic beer bottle cap inner pad material, it is characterized in that, in the second step process process be, with make and be mixed with oxygen absorbent the ethylene-vinyl alcohol copolymer pellet join in the hopper formula drier and push, after the heating blend by screw rod, material is scraped material into empty bottle cap inner bottom part, then by 24 compacting tool set compression mouldings by the scraper cutter of 24 constant speed runnings.
According to the processing technology of claim 2 or 3 described oxygen uptake oxygen-resistance type plastic beer bottle cap inner pad material, it is characterized in that 4, in second step process, the equipment of relevant ethylene-vinyl alcohol copolymer barrier resin layers forming work requires:
Extruder: length-diameter ratio L/D=24-30;
Screw rod design: CR=3.0-4.0; Screw rod divides three sections at least, for supplying with section, compression section and metering section;
Hopper formula drier or hot air circular drying machine 90-110 ℃, technological temperature is controlled between 170-230 ℃;
Filtering net is by the combination of 80/120-150/50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100542834A CN100400390C (en) | 2004-09-03 | 2004-09-03 | Oxygen-uptake oxygen-resistance type plastic beer bottle cap lining and processing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100542834A CN100400390C (en) | 2004-09-03 | 2004-09-03 | Oxygen-uptake oxygen-resistance type plastic beer bottle cap lining and processing method thereof |
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| Publication Number | Publication Date |
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| CN1743241A true CN1743241A (en) | 2006-03-08 |
| CN100400390C CN100400390C (en) | 2008-07-09 |
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| CNB2004100542834A Active CN100400390C (en) | 2004-09-03 | 2004-09-03 | Oxygen-uptake oxygen-resistance type plastic beer bottle cap lining and processing method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328947A (en) * | 2019-08-13 | 2019-10-15 | 马鞍山卓凡新材料科技有限公司 | A kind of preparation method of environment-protecting and non-poisonous beer plastic bag material |
| CN114196048A (en) * | 2020-09-18 | 2022-03-18 | 中国农业大学 | Oxygen uptake bottle cap gasket and preparation method and application thereof |
| CN117962443A (en) * | 2024-03-28 | 2024-05-03 | 保视丽(上海)新材料科技有限公司 | Low-particle-pollution high-density polyethylene ultra-clean barrel and preparation process thereof |
| CN117962443B (en) * | 2024-03-28 | 2024-06-04 | 保视丽(上海)新材料科技有限公司 | Low-particle-pollution high-density polyethylene ultra-clean barrel and preparation process thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0372842A (en) * | 1989-05-15 | 1991-03-28 | Mitsui Toatsu Chem Inc | Packaging material for fish egg |
| JPH04339772A (en) * | 1991-05-09 | 1992-11-26 | Toyo Seikan Kaisha Ltd | Container lid with liner and production thereof |
| JP3114896B2 (en) * | 1992-03-24 | 2000-12-04 | 日本クラウンコルク株式会社 | Container lid with excellent long-term storage |
| US6194042B1 (en) * | 1997-07-10 | 2001-02-27 | Tri-Seal Holdings, Inc. | High barrier closure liner with oxygen absorbing capabilities |
| JP3072842B2 (en) * | 1998-05-07 | 2000-08-07 | 日本電信電話株式会社 | Single mode optical fiber |
| US6479160B1 (en) * | 2001-03-09 | 2002-11-12 | Honeywell International Inc. | Ultra high oxygen barrier films and articles made therefrom |
| JP4852215B2 (en) * | 2002-03-14 | 2012-01-11 | 東洋製罐株式会社 | Oxygen-absorbing laminate |
-
2004
- 2004-09-03 CN CNB2004100542834A patent/CN100400390C/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328947A (en) * | 2019-08-13 | 2019-10-15 | 马鞍山卓凡新材料科技有限公司 | A kind of preparation method of environment-protecting and non-poisonous beer plastic bag material |
| CN114196048A (en) * | 2020-09-18 | 2022-03-18 | 中国农业大学 | Oxygen uptake bottle cap gasket and preparation method and application thereof |
| CN114196048B (en) * | 2020-09-18 | 2023-04-14 | 中国农业大学 | Oxygen uptake bottle cap gasket and preparation method and application thereof |
| CN117962443A (en) * | 2024-03-28 | 2024-05-03 | 保视丽(上海)新材料科技有限公司 | Low-particle-pollution high-density polyethylene ultra-clean barrel and preparation process thereof |
| CN117962443B (en) * | 2024-03-28 | 2024-06-04 | 保视丽(上海)新材料科技有限公司 | Low-particle-pollution high-density polyethylene ultra-clean barrel and preparation process thereof |
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| Publication number | Publication date |
|---|---|
| CN100400390C (en) | 2008-07-09 |
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