CN104943928A - Gas-assisted high-barrier preform - Google Patents
Gas-assisted high-barrier preform Download PDFInfo
- Publication number
- CN104943928A CN104943928A CN201510362740.4A CN201510362740A CN104943928A CN 104943928 A CN104943928 A CN 104943928A CN 201510362740 A CN201510362740 A CN 201510362740A CN 104943928 A CN104943928 A CN 104943928A
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- CN
- China
- Prior art keywords
- bottle base
- barrier
- assisted molding
- gas assisted
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/40—Details of walls
Abstract
The invention discloses a gas-assisted high-barrier preform. The gas-assisted high-barrier preform comprises at least an outer layer and an inner layer. A plurality of foam-shaped structures are arranged in the inner layer. The gas-assisted high-barrier preform is arranged into a structure of at least two layers, and foam-shaped structures are arranged in the inner layer, so that the thickness of the preform is increased under the condition that the weight of the preform is not changed. In addition, the foam-shaped structures can also shield light ray, the gas contamination is separated effectively, the preform is of a higher sanitary grade, the gas-assisted high-barrier preform can be widely used for packaging edible items like carbonated drinks, juices, beers and the like, and the edible food has a comparatively long expiration period.
Description
Technical field
The present invention relates to a kind of blank structure of packing container, be specifically related to a kind of gas assisted molding high-barrier bottle base.
Background technology
Plastic bottle is the main flow of current various beverage packaging bottle.Along with the raising of state food safe and sanitary, the requirement of food grade plastic bottle is also improved thereupon, such as require plastic bottle have lightweight, keeping quality is good, heat-resisting, the performance such as withstand voltage.Many plastic bottles could be used for filling with beverage as added taste water, fruit juice or dairy products after needing high-temperature sterilization, to ensure not pollute content.Wherein PET bottle has just like become the master of beverage products packing, and PET bottle, owing to having low environment contaminative and energy resource consumption, progressively replaces conventional packaging material in today that environmental consciousness comes back.Possess heat-resisting with it, the function such as withstand voltage, has replaced most of PVC bottle, aluminium pot, iron flask, glass bottle etc., has become the most potential packing.PET bottle barrier common on market is poor, and sanitary grade is poor, and content is easy to pollute, and causes the shortened shelf life of content.And the relatively good bottle base thickness of barrier is comparatively large, cause bottle base materials many, cost is high.
Summary of the invention
The object of the present invention is to provide a kind of gas assisted molding high-barrier bottle base, this gas assisted molding high-barrier bottle base is lightweight, and has good barrier.
For reaching this object, the present invention by the following technical solutions:
There is provided a kind of gas assisted molding high-barrier bottle base, at least comprise skin and internal layer, described internal layer inside is provided with some balloon-shaped structures.
Wherein, described balloon-shaped structure is multiple-layer stacked and is evenly distributed on the bubble of described internal layer inside.
Wherein, unreactable gas is filled with in described balloon-shaped structure.
Wherein, described internal layer is hyaline layer.
Wherein, described skin and described internal layer are PET resin layer.
Wherein, described gas assisted molding high-barrier bottle base comprises at the bottom of bottleneck, bottle and bottle, and the inside face at the bottom of described bottle and outside face are sphere.
Wherein, the internal diameter of described bottle reduces from top to bottom successively.
Wherein, the outer setting of described bottleneck has outside thread.
Wherein, the inside face of described gas assisted molding high-barrier bottle base is smooth curved surface.
Wherein, described gas assisted molding high-barrier bottle base is that a shot is shaping.
Compared with prior art, beneficial effect of the present invention: by gas assisted molding high-barrier bottle base is arranged at least double-layer structure, and in internal layer inside, some balloon-shaped structures are set, the thickness of bottle base is increased when bottle base weight is constant, in addition, the all right shield lights of balloon-shaped structure, effective obstruct gaseous contamination, bottle base is made to have higher sanitary grade, when not adding or lack adding preservative agent, can, in a large number for the packaging of the edible product such as soda, fruit juice and beer, edible product be made to have the longer shelf-life.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in the embodiment of the present invention below.Apparently, below described accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of the gas assisted molding high-barrier bottle base described in the embodiment of the present invention.
Fig. 2 is the cutaway view of the gas assisted molding high-barrier bottle base described in the embodiment of the present invention.
Fig. 3 is the enlarged diagram of part A in Fig. 2.
In figure:
1, bottleneck; 11, outside thread; 2, bottle; 3, at the bottom of bottle;
100, outer; 200, internal layer; 210, balloon-shaped structure.
Detailed description of the invention
Technical scheme of the present invention is further illustrated by specific embodiment below in conjunction with accompanying drawing.
The gas assisted molding high-barrier bottle base of the present embodiment at least comprises outer 100 and internal layer 200, and internal layer 200 inside is provided with some balloon-shaped structures 210.By gas assisted molding high-barrier bottle base is arranged at least double-layer structure, and in internal layer inside, some balloon-shaped structures are set, the thickness of bottle base is increased when bottle base weight is constant, in addition, all right shield lights of balloon-shaped structure, effectively intercepts gaseous contamination, bottle base is made to have higher sanitary grade, when not adding or lack adding preservative agent, can, in a large number for the packaging of the edible product such as soda, fruit juice and beer, edible product be made to have the longer shelf-life.The gas assisted molding high-barrier bottle base of the present embodiment also can be three layers of even more than four layers structure, and thickness is larger, and the barrier of bottle base is higher, and the shelf-life of in-built edible product is longer.
Fig. 2 is the cutaway view of the gas assisted molding high-barrier bottle base of an embodiment provided by the invention.As shown in Figure 2, gas assisted molding high-barrier bottle base position double-layer structure, be respectively outer 100 and internal layer 200 from outside to inside, wherein internal layer 200 inside is provided with some balloon-shaped structures 210.Due to the design of balloon-shaped structure 210, make the gas assisted molding high-barrier bottle base of the present embodiment compare the quality of the bottle base of comparable size gentlier, saved the materials of bottle base to a certain extent.In addition, owing to adopting double-layer structure, when being used for the packaging of the edible product such as soda, fruit juice, beer when gas assisted molding high-barrier bottle base, the shelf-life of in-built edible product can reach more than 1 year.
Above-mentioned gas assisted molding (GIM) refer to plastic cement be filled to die cavity suitable in (90% ~ 99%) inject inertia high pressure gas, gas push melting plastic cement continues to be filled with die cavity, replaces a kind of injection molding technology of plastic cement pressure maintaining period with gas pressurize.Namely above-mentioned balloon-shaped structure 210 is obtained by gas assisted molding (GIM) technology.
Particularly, balloon-shaped structure 210 is multiple-layer stacked and is evenly distributed on the bubble of internal layer 200 inside.As shown in Figure 3, internal layer 200 inner vertical direction is evenly superimposed with four layers of spherical bubbles, horizontal center line between adjacent two layers bubble staggers mutually, and light direct projection to part during ground floor bubble, refraction occurs and enters second layer bubble, and another part reflects back; The light that refraction enters second layer bubble carries out secondary reflection and refraction again, and by that analogy, after multiple reflections and refraction, light covers completely.Need to understand, the present embodiment is not limited to four layers of bubble, also can be two-layer bubble, three layers of bubble, even more than five layers bubbles, bubble shape be not limited to spherical, the diameter of bubble requires according to the thickness of bottle base and intercepting and determines, as long as can reach technique effect of the present invention.
Particularly, in balloon-shaped structure 210, be filled with unreactable gas, for the protection of internal layer 200, prevent the resin of internal layer 200 oxidized.Unreactable gas in the present embodiment is preferably nitrogen; due to the chemical inertness of nitrogen; be commonly used for atmosphere gas, nitrogen be packed into internal layer 200 by above-mentioned gas assisted molding (GIM) technology, when other additives in resin or resin can be prevented to be exposed to air be oxidized by oxygen.
Internal layer 200 in the present embodiment is hyaline layer.Outer 100 also can be hyaline layer, adopts hyaline layer can know the situation seeing shape thing in bottle base, while internal layer 200 in balloon-shaped structure 210 again can effective shield lights as barrier ergosphere.
As the present embodiment preferred embodiment, outer 100 PET resin layer is with internal layer 200.The Chinese of PET is called polyethylene terephthalate, and English polyethylene terephthalate by name, by ethylene glycol terephthalate generation dehydration condensation.PET is the poly-mer of highly crystalline, and surface smoothing is glossy.PET material is because of decay resistance, higher pulling strengrth and peel strength, well resistance to elevated temperatures and durability, chemical property and dimensionally stable specific to it.
As shown in Figure 1, gas assisted molding high-barrier bottle base to comprise at the bottom of bottleneck 1, bottle 2 and bottle 3, at the bottom of bottle 3 inside face and outside face be sphere, easily mould adobe blocks after making the injection moulding of gas assisted molding high-barrier bottle base, convenient cooling.
In order to reduce the difficulty of moulding adobe blocks of gas assisted molding high-barrier bottle base further, improve cooling performance, the internal diameter of bottle 2 reduces from top to bottom successively.
The outer setting of the bottleneck 1 in the present embodiment has outside thread 11, can spin and coordinates with arranging female bottle cap, improve the leak tightness of gas assisted molding high-barrier bottle base.
In order to further reduce the difficulty of moulding adobe blocks of gas assisted molding high-barrier bottle base, improve cooling performance, the inside face of gas assisted molding high-barrier bottle base is smooth curved surface.The outside face at the bottle end 3 can be also plane, facilitates bottle base to place.The bottle end 3, adopts arc transition with the junction of bottle 2.
Gas assisted molding high-barrier bottle base in the present embodiment is that a shot is shaping.
Above content is only preferred embodiment of the present invention, and for those of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, this description should not be construed as limitation of the present invention.
Claims (10)
1. a gas assisted molding high-barrier bottle base, is characterized in that, at least comprise skin (100) and internal layer (200), described internal layer (200) inside is provided with some balloon-shaped structures (210).
2. gas assisted molding high-barrier bottle base according to claim 1, is characterized in that, described balloon-shaped structure (210) is for multiple-layer stacked and be evenly distributed on the inner bubble of described internal layer (200).
3. gas assisted molding high-barrier bottle base according to claim 1, is characterized in that, described balloon-shaped structure is filled with unreactable gas in (210).
4. gas assisted molding high-barrier bottle base according to claim 1, is characterized in that, described internal layer (200) is hyaline layer.
5. gas assisted molding high-barrier bottle base according to claim 1, is characterized in that, described skin (100) and described internal layer (200) are PET resin layer.
6. gas assisted molding high-barrier bottle base according to claim 1, it is characterized in that, described gas assisted molding high-barrier bottle base comprises at the bottom of bottleneck (1), bottle (2) and bottle (3), and inside face and the outside face of (3) at the bottom of described bottle are sphere.
7. gas assisted molding high-barrier bottle base according to claim 6, is characterized in that, the internal diameter of described bottle (2) reduces from top to bottom successively.
8. gas assisted molding high-barrier bottle base according to claim 6, is characterized in that, the outer setting of described bottleneck (1) has outside thread (11).
9. gas assisted molding high-barrier bottle base according to claim 1, is characterized in that, the inside face of described gas assisted molding high-barrier bottle base is smooth curved surface.
10. the gas assisted molding high-barrier bottle base according to any one of claim 1 to 9, is characterized in that, described gas assisted molding high-barrier bottle base is that a shot is shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510362740.4A CN104943928A (en) | 2015-06-26 | 2015-06-26 | Gas-assisted high-barrier preform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510362740.4A CN104943928A (en) | 2015-06-26 | 2015-06-26 | Gas-assisted high-barrier preform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104943928A true CN104943928A (en) | 2015-09-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510362740.4A Pending CN104943928A (en) | 2015-06-26 | 2015-06-26 | Gas-assisted high-barrier preform |
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| Country | Link |
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| CN (1) | CN104943928A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3837776A (en) * | 1973-07-06 | 1974-09-24 | Farrell Patent Co | Product cooling for blow molding |
| US4120924A (en) * | 1977-04-22 | 1978-10-17 | Rainville Company, Inc. | Method for making foamed blown ware |
| CN1148827A (en) * | 1995-03-27 | 1997-04-30 | 大库尔特H·鲁普曼 | Method for making a molded plastic container |
| CN102119107A (en) * | 2008-06-24 | 2011-07-06 | 塑料技术公司 | Overmolded container having a foam layer |
| CN204776387U (en) * | 2015-06-26 | 2015-11-18 | 广州一道注塑机械有限公司 | Gas is assisted shaping high resistant and is separated bottle base |
-
2015
- 2015-06-26 CN CN201510362740.4A patent/CN104943928A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3837776A (en) * | 1973-07-06 | 1974-09-24 | Farrell Patent Co | Product cooling for blow molding |
| US4120924A (en) * | 1977-04-22 | 1978-10-17 | Rainville Company, Inc. | Method for making foamed blown ware |
| CN1148827A (en) * | 1995-03-27 | 1997-04-30 | 大库尔特H·鲁普曼 | Method for making a molded plastic container |
| CN102119107A (en) * | 2008-06-24 | 2011-07-06 | 塑料技术公司 | Overmolded container having a foam layer |
| CN204776387U (en) * | 2015-06-26 | 2015-11-18 | 广州一道注塑机械有限公司 | Gas is assisted shaping high resistant and is separated bottle base |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150930 |