WO2011053174A2 - Preform, bottle and process for the production of bottle - Google Patents
Preform, bottle and process for the production of bottle Download PDFInfo
- Publication number
- WO2011053174A2 WO2011053174A2 PCT/PL2010/050054 PL2010050054W WO2011053174A2 WO 2011053174 A2 WO2011053174 A2 WO 2011053174A2 PL 2010050054 W PL2010050054 W PL 2010050054W WO 2011053174 A2 WO2011053174 A2 WO 2011053174A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- preform
- width
- height
- bottle
- supporting ring
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
- B29B11/14—Making preforms characterised by structure or composition
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
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- 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
- B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
- B65D1/023—Neck construction
- B65D1/0246—Closure retaining means, e.g. beads, screw-threads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
- B29B11/06—Making preforms by moulding the material
- B29B11/08—Injection moulding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C2049/023—Combined blow-moulding and manufacture of the preform or the parison using inherent heat of the preform, i.e. 1 step blow moulding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
- B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
- B29C2949/0769—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the lip, i.e. very top of preform neck
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
- B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
- B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
- B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
- B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
- B29C2949/0772—Closure retaining means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
- B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
- B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
- B29C2949/0772—Closure retaining means
- B29C2949/0776—Closure retaining means not containing threads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/079—Auxiliary parts or inserts
- B29C2949/0792—Closure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/081—Specified dimensions, e.g. values or ranges
- B29C2949/0811—Wall thickness
- B29C2949/0812—Wall thickness of the lip, i.e. the very top of the preform neck
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/081—Specified dimensions, e.g. values or ranges
- B29C2949/0829—Height, length
- B29C2949/083—Height, length of the lip, i.e. the very top of the preform neck
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/081—Specified dimensions, e.g. values or ranges
- B29C2949/0839—Angle
- B29C2949/084—Angle of the lip, i.e. the very top of the preform neck
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
- B29C2949/22—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at neck portion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
- B29C2949/24—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at flange portion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
- B29C2949/26—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at body portion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
- B29C2949/28—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at bottom portion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3024—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3032—Preforms or parisons made of several components having components being injected
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/253—Preform
- B29K2105/258—Tubular
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7158—Bottles
Definitions
- the present invention finds its application in the food industry for packaging of the beverages, particularly gaseous beverages .
- Packaging of the beverages is one of the main problems food industry is facing.
- the packages made of glass despite their unquestionable advantages such as: being ecological and insolubility have also disadvantages such as breakability and high weight.
- Packages made of cardboard are free from these disadvantages, however due to low rigidity are not suitable for packaging of the gaseous beverages, moreover for the sake of complex structure are difficult to recycle. It seems that least of disadvantages have packages PET type, because they are non- breakable, lightweight and sufficiently resistant to effect of pressure of gaseous beverages. Appropriate utilisation and sorting allow reusing of used packages PET type. In the case of gaseous beverages or hermetically packaged leakproof closure is required.
- inner surface flare angle (a) of the body (4) with the shape opened from the top cone is larger than the outer surface flare angle ( ⁇ ) of the body (4)
- walls thickness (g2) of the cylindrical crowning (2) is lesser than thickness (g3) of the bottom.
- the present invention refers to the preform of container made of plastics closed with bail closure, particularly for the food products, comprising a body closed at one side for blow moulding during formation of the container, and opened at the other side and ended with a supporting ring, below which there are symmetrically disposed notches, which are arranged over lower ring, characterised in that the angle between tangent to an upper edges of the supporting ring and tangent to a side edges of the supporting ring is ranged from 10° to 40°, and the ratio of the sealing ring height to its width is ranged from 0,13 to 6,5, while maximal height of the sealing ring is 1,5 mm and minimal height is 0,2 mm and maximal width is 1,3 mm and minimal width is 0,2 mm.
- the preform according to the invention is characterised in that said angle is in the range from 18° to 22° and the ratio between width of the sealing ring to its height is 0,83, and preferably width is 0,5 mm and height is 0 , 6 mm .
- the second object of the present invention is the process for the production of plastics bottles closed with bail closure, characterised in that it comprises the steps of:
- the third object of the present invention is a bottle obtainable by process definied in the invention.
- designed preform and formed on its basis bottle are characterised by high resistance to high pressure.
- New form of the preform guarantees that the bottle formed on the basis of this preform is characterised by the leakproofness to 10 bars.
- Specific structure further provides high resistance to shocks and displacement of the bottles formed on the basis of the present preform.
- Suitably sloped supporting ring carries the stopper of the bail closure deposited on the borders thus preventing to tilting, deviating that stopper during side thrust at the time of transportation. When the package is closed, the stopper of the bail closure, in phase I is arranged on the sealing ring.
- deposited stopper of the bail closure due to driving into rubber of the stopper resting on the inner ring, is lowering to further deposit with its borders on the supporting ring, further sealing the closure.
- the arrangement of the two rings results in bottles with bail closure with durable, stable leakproofness , while the preforms are characterised by lower weight in comparison to the previously known preforms. Examples of the embodiments according to the present invention are shown in the appended drawings, in which fig. 1 shows cross-section of the preform neck, fig 2 shows isometric view of the preform neck, fig 3 shows in details cross-section of the sealing ring, fig. 4 shows the perform and fig. 5 and 6 shows bottle obtainable by process definied in presented invention.
- the preform for blow moulding of bottles consists of cylindrical body 1 at one side closed to blow moulding, and opened at the other side, which forms the neck of the next bottle.
- the supporting ring 2 At opened end, there is the supporting ring 2 that is sloped at angle 20° to tangent to the borders of the opened end of the body 1.
- the sealing ring 5 Closer to the axis of the cylinder is arranged the sealing ring 5 with height 0,5 mm and width 0,6 mm.
- PET primary granulate PET
- the molten granulate is injected to the mould by the system of hot channels provided in the mould by using injection seats.
- a material for the preform which is cooled with the cooling channels.
- the material is transported to the machine, in which by blowing-out with compressed air, after previous heating of the preform, is shaped into blown forms of the bottle.
- the bottle maintains identical neck like the preform. Heating and blow moulding with compressed air is subjected only to a part of the preform that is below the lower flange.
Abstract
The present invention refers to a preform for a container made of plastics closed with bail closure, characterised by the presence of notches (4), an upper ring (2) that is positioned at an angle α, and an inner ring (5) with a specific height and width. The present invention also refers to the process for the production of bottles by using such form and to a bottle obtainable by said process.
Description
Preform, bottle and process for the production of bottle
The present invention finds its application in the food industry for packaging of the beverages, particularly gaseous beverages .
Packaging of the beverages is one of the main problems food industry is facing. There are three main types of the packages: made of glass, cardboard and plastics, e.g. PET type. The packages made of glass despite their unquestionable advantages such as: being ecological and insolubility have also disadvantages such as breakability and high weight. Packages made of cardboard are free from these disadvantages, however due to low rigidity are not suitable for packaging of the gaseous beverages, moreover for the sake of complex structure are difficult to recycle. It seems that least of disadvantages have packages PET type, because they are non- breakable, lightweight and sufficiently resistant to effect of pressure of gaseous beverages. Appropriate utilisation and sorting allow reusing of used packages PET type. In the case of gaseous beverages or hermetically packaged leakproof closure is required. It is provided by screwed closures or bail closures, which are characterised by quick closing and opening, and high leakproofness . The European patent application EP1129958 discloses bottle PET type that is closed with the bail closure. High stresses, to which walls of the bottle have to oppose to, made authors of mentioned application to produce bottles with as thick walls as glass bottles have. This operation has unfavourably affected on the weight of the bottles, their appearance and costs of production. Polish patent application PL363595 discloses preform for manufacture of plastics bottles PET type comprising a body (4) with arcwise convex bottom, characterised in that the body (4) has a shape of opened from the top cone, that is directed with the rounded vertex downward. The body (4) passages from the top to cylindrical
crowning (2) , upper part of which forms bent to the outside ring-shaped flange (3) ended with shaped contour. Preferably, inner surface flare angle (a) of the body (4) with the shape opened from the top cone is larger than the outer surface flare angle (β) of the body (4) , walls thickness (g2) of the cylindrical crowning (2) is lesser than thickness (g3) of the bottom. This type of preform is characterised by complexity of the structure and little universality and disposability of the closure. Similar structure has preform disclosed in polish patent application PL371237.
Concerning the above there is a need for the manufacture of such preform, which enables producing of the bottle PET type suitable to store gaseous beverages closed with bail closure. Unexpectedly the present problem is solved by the present invention.
The present invention refers to the preform of container made of plastics closed with bail closure, particularly for the food products, comprising a body closed at one side for blow moulding during formation of the container, and opened at the other side and ended with a supporting ring, below which there are symmetrically disposed notches, which are arranged over lower ring, characterised in that the angle between tangent to an upper edges of the supporting ring and tangent to a side edges of the supporting ring is ranged from 10° to 40°, and the ratio of the sealing ring height to its width is ranged from 0,13 to 6,5, while maximal height of the sealing ring is 1,5 mm and minimal height is 0,2 mm and maximal width is 1,3 mm and minimal width is 0,2 mm. Equally preferably, the preform according to the invention is characterised in that said angle is in the range from 18° to 22° and the ratio between width of the sealing ring to its height is 0,83, and preferably width is 0,5 mm and height is 0 , 6 mm .
The second object of the present invention is the process for the production of plastics bottles closed with
bail closure, characterised in that it comprises the steps of:
a) conditioning of a raw material;
b) plasticization of the raw material;
c) injection of the molten granulate to the mould;
d) moulding of the material into preform having angle a between tangent to the upper edges of the supporting ring and tangent to the side edges of the supporting ring ranged from 10° to 40°, and the ratio of the inner ring height to its width is ranged from 0,13 to 6,5, while maximal height is 1,5 mm and minimal height is 0,2 mm, and maximal width is 1,3 mm and minimal width is 0,2 mm;
e) cooling of the preform;
f) blow moulding of the preform into bottles.
The third object of the present invention is a bottle obtainable by process definied in the invention.
Thus, designed preform and formed on its basis bottle are characterised by high resistance to high pressure. New form of the preform guarantees that the bottle formed on the basis of this preform is characterised by the leakproofness to 10 bars. Specific structure further provides high resistance to shocks and displacement of the bottles formed on the basis of the present preform. Suitably sloped supporting ring carries the stopper of the bail closure deposited on the borders thus preventing to tilting, deviating that stopper during side thrust at the time of transportation. When the package is closed, the stopper of the bail closure, in phase I is arranged on the sealing ring. In a very short time, deposited stopper of the bail closure due to driving into rubber of the stopper resting on the inner ring, is lowering to further deposit with its borders on the supporting ring, further sealing the closure. The arrangement of the two rings results in bottles with bail closure with durable, stable leakproofness , while the preforms are characterised by lower weight in comparison to the previously known preforms.
Examples of the embodiments according to the present invention are shown in the appended drawings, in which fig. 1 shows cross-section of the preform neck, fig 2 shows isometric view of the preform neck, fig 3 shows in details cross-section of the sealing ring, fig. 4 shows the perform and fig. 5 and 6 shows bottle obtainable by process definied in presented invention.
Example 1
The preform for blow moulding of bottles consists of cylindrical body 1 at one side closed to blow moulding, and opened at the other side, which forms the neck of the next bottle. At opened end, there is the supporting ring 2 that is sloped at angle 20° to tangent to the borders of the opened end of the body 1. Closer to the axis of the cylinder is arranged the sealing ring 5 with height 0,5 mm and width 0,6 mm. Below, there are notches 4, which are positioned above the lower ring 3.
Example 2
There is provided primary granulate PET, then it is dried in the dryers and plasticized by using heated extruder with warm. Subsequently, the molten granulate is injected to the mould by the system of hot channels provided in the mould by using injection seats. Then, there is formed a material for the preform, which is cooled with the cooling channels. Afterwards, the material is transported to the machine, in which by blowing-out with compressed air, after previous heating of the preform, is shaped into blown forms of the bottle. The bottle maintains identical neck like the preform. Heating and blow moulding with compressed air is subjected only to a part of the preform that is below the lower flange.
Example 3
Leakage test after completing the carbonated beverages at a pressure of 10 bar showed sufficient tightness. Obtained a bottle of the present invention is shown in Figure 5 and 6.
Claims
1. A container preform made of plastics, closed with bail closure, particularly for the food products, comprising the body (1) closed at one side for blow moulding during production of the container, opened at the other side, and ended with supporting ring (2), below which symmetrically arranged notches (4) are positioned, which are arranged over lower ring (3), characterised in that the angle a between tangent to the upper edges of the supporting ring (2) and tangent to the side edges of the supporting ring (2) is ranged from 10° to 40°, and the ratio Z between the height of the sealing ring (5) to its width is ranged from 0,13 to 6,5, while maximal height is 1,5 mm and minimal height is 0,2 mm, and maximal width is 1,3 mm and minimal width is 0,2 mm.
2. Preform according to claim 1, characterised in that the angle a is in the range from 18° to 22° and the ratio Z is 0,83, preferably width is 0,5 mm and height is 0,6 mm.
3. Process for the production of plastics bottles closed with bail closure, characterised in that it comprises the following steps:
a) conditioning of the raw material;
b) plasticization of the raw material;
c) injection of the molten granulate to the mould;
d) moulding of the material to the preform having angle a between tangent to the upper edges of the supporting ring (2) and tangent to the side edges of the supporting ring (2) ranged from 10° to 40°, and the ratio Z between the height of the sealing ring (5) and its width is ranged from 0,13 to 6,5, while maximal height is 1,5 mm and minimal height is 0,2 mm, and maximal width is 1,3 mm and minimal width 0 , 2 mm;
e) cooling of the preform;
f) blow moulding of the preform into bottles.
4. A bottle obtainable by process definied in claim 3.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PLP389393 | 2009-10-28 | ||
PL389393A PL389393A1 (en) | 2009-10-28 | 2009-10-28 | Premould and method for producing bottles |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2011053174A2 true WO2011053174A2 (en) | 2011-05-05 |
WO2011053174A3 WO2011053174A3 (en) | 2011-06-23 |
Family
ID=43805709
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/PL2010/050054 WO2011053174A2 (en) | 2009-10-28 | 2010-10-27 | Preform, bottle and process for the production of bottle |
Country Status (2)
Country | Link |
---|---|
PL (1) | PL389393A1 (en) |
WO (1) | WO2011053174A2 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1129958A2 (en) | 2000-03-02 | 2001-09-05 | Flensburger Brauerei Emil Petersen GmbH & Co. KG | Swing-stopper bottle |
PL363595A1 (en) | 2003-11-20 | 2005-05-30 | INVENTO Sp.z o.o. | Blank mould for making plastic containers, particularly for storing foodstuffs |
PL371237A3 (en) | 2004-11-18 | 2006-05-29 | INVENTO Sp.z o.o. | Pre-mould for plastic container, particularly for storing foodstuffs |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9106231D0 (en) * | 1991-03-23 | 1991-05-08 | Yawl Spring Mineral Water Comp | Bottles |
DE19924827A1 (en) * | 1999-03-24 | 2000-10-05 | Krones Ag | Bottle primarily for drinks such as beer, lemonade etc. is provided with elements which are located on the inner surface of the bottle mouth and mesh with the corresponding elements on the stopper circumference |
NL1020094C1 (en) * | 2002-03-01 | 2003-09-02 | Robbert Van Den Broek | Screw=on cap for e.g. bottle, comprises plastic body screwed onto bottle neck and sealed with toggle lever closure |
JP4601491B2 (en) * | 2005-05-25 | 2010-12-22 | 株式会社吉野工業所 | Blow molded container made of synthetic resin |
-
2009
- 2009-10-28 PL PL389393A patent/PL389393A1/en not_active IP Right Cessation
-
2010
- 2010-10-27 WO PCT/PL2010/050054 patent/WO2011053174A2/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1129958A2 (en) | 2000-03-02 | 2001-09-05 | Flensburger Brauerei Emil Petersen GmbH & Co. KG | Swing-stopper bottle |
PL363595A1 (en) | 2003-11-20 | 2005-05-30 | INVENTO Sp.z o.o. | Blank mould for making plastic containers, particularly for storing foodstuffs |
PL371237A3 (en) | 2004-11-18 | 2006-05-29 | INVENTO Sp.z o.o. | Pre-mould for plastic container, particularly for storing foodstuffs |
Also Published As
Publication number | Publication date |
---|---|
WO2011053174A3 (en) | 2011-06-23 |
PL389393A1 (en) | 2011-05-09 |
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