Difference between revisions of "Capping"
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Revision as of 07:48, 12 May 2022
On this page you can find all contributions related to capping and closures for PET bottles
A review of caps and closures developments
It was a Swiss designer named Albert Obrist who in 1970 developed the first plastic top for CSD drinks bottles with the injection-moulded onepiece HDPE cap. Originally intended for use with returnable glass bottles, his idea quickly attracted the interest of the PET bottle industry which increased sharply at the end of the 1970s. The key advantages of the HDPE cap over its aluminium counterpart were considered to be, firstly that damage to the bottle mouth caused by rolling the aluminium caps onto the neck finish could be avoided, and secondly that the HDPE caps were more compatible with the precise geometries of the PET thread. Obrist’s innovations were subsequently incorporated into the Crown Cork and Seal Company’s operations during the mid-1980s.
At the same point in the 20th century, the Alcoa CSI acquired H-C Industries decided to approach the problem from a different perspective and patented the compression moulding process for plastic CSD caps, resulting in the H-C Wing-Lok design. Compared with injection moulding, compression moulding output in those days sometimes was more than double.
Since then, changing consumer needs, along with new trends in drinks, regulations and technological advances, have led to ever new innovations and improvements being made in the design of caps and closures. What has not changed, however, is the need for tight closures (under a variety of conditions) that protect a bottle’s contents, and which are easy to open and re-seal, can be incorporated within the package design and are cost effective to produce.
| CSD: 1-piece cap for | Late nineties | Late 2Ks | Today |
|---|---|---|---|
| PCO1810 neck | 3.1 g | 2.8 g | 2.5 g |
| PCO1881 neck | 2.5 g | 2.0 g | |
| 26/22 mm neck | 1.6 g | ||
| Water: 1-piece cap for | |||
| 30/25 mm neck | 2.4 g | 2.0 g | 1.6 g |
| 29/25 mm neck | 1.3 g | 1.2 g | |
| 26/22 mm neck | 1 g | 0.9 g | |
| 25/22 mm neck | 0.7 g |
Caps & Closures weight developments
over the past 20 years for still water and CSD (source: Sacmi)
PETplanet has been covering the developments in closures technology in over 10,000 of its magazine’s pages since 1999. And while a survey like the following can never account for completeness, we hope you enjoy our selection of 20 years of achievements in caps and closures for PET bottles, as reported in PETplanet!
Caps and closures – some highlights 1999 to 2019
2000
In issue 8 KHS and CCT presented a cap with a moving liner for capping oxygen-sensitive products such as beer.
2001
In issue 11+12 we reported that Bericap had won a “Packaging Oscar” for their BO2S beer closure.
2003
Bericap launches the one-piece hot fill closure in the Chinese market (issue 2). Products packed were mainly juices and energy drinks.
2005
At PETpoint, Bericap presented the “Shorty” for beer. The door was open for anyone to submit designs for lightweight caps and neck forms. Also at PETpoint, and reported in issue 12, Romeo Corvaglia enters the discussion on lightweight caps for both still drinks and CSDs.
2006
PETplanet and Sacmi organised the first joint cap forum with an intense discussion on the advantages and disadvantages of injection moulded and compression moulded caps in issue 11. Alcoa summed it up with the comment “it all depends…”. In the same issue Bericap presented their Supershorty, a range of closures in line with the new 28 mm light weight neck finish ISBT standard PCO 1881 for CSD.
2007
The first commercial application of the 1881 neck finish (Martens brewery in Belgium) was reported in issue 12.
2009
Romeo Corvaglia reported in issue in 2+3, that the 0.99 g cap for still water was on the market in North America. Issue 9 reported that Coca-Cola China had decided to universally adopt the PCO 1881 by the end of 2009.
2010
Lightweight is still a hot topic: In issue 5 we report on Bericap’s new hot fill initiative, resulting in newly modified one-piece DoubleSeal 38 mm closures together with neck wall thicknesses of 2 mm – as a first step.
In issue 6, MHT Mold & Hotrunner Technologies presents savings from lighter caps and threads, launching with the MHT-21Light thread family a lightweight alternative to the PCO 1810. CCT has been designing the cap for the new thread.
| Year | Total |
|---|---|
| 2017 | 563.98 bn |
| 2018 | 593.31 bn |
| 2019 | 624.16 bn |
| 2020 | 656.62 bn |
Global caps and closures market, based on beverage container units filled
and an estimated annual growth of 5.2% (source: Krones Group Annual Report 2017)
2011
In issue 4 we report on the launch of a push-pull closure for hot fill packages without aluminium foil, developed by Bericap in 2010.
2012
A lightweight combination cap for the 1881 short neck format for both, carbonated drinks as well as still water, is close to launch (Corvaglia, issue 1+2).
A 26 mm closure range for edible oil, superseding the standard 29/21 neck finish has been developed by Bericap, as we are covering in issue 1+2, generating weight savings.
In issue 6, the company announces the launch of the DoubleSeal one-piece hot fill closure in the North American market, with reduced wall thicknesses.
2013
Following the K trade fair, PETplanet is publishing a study of the caps and closures markets to describe the state-of-the art technology, starting with issue no. 12/2013 and the developments, strategies and competitive differentiation of the companies involved in the market of suppliers of systems and moulds for the production of caps and closures.
2014
Caps with benefits: ViCap Systems Systems launches sports caps with a dosing chamber with which consumers can freshly supplement their drinks with flavours or vitamin shots (issues 4+9).
In issue no. 9, we talk about DTI India: Bericap unveils its new lightweight closure, HexaLite 29/11, whose weight saving compared with a 30 mm/25 mm neck and closure combination is as much as 33%.
As well as this lightweight trend, the spotlight is increasingly on interest groups with difficulties in opening operations. Brazilian Clever Pack is one example for capping solutions for those who suffer from reduced grip strength, developing reusable building block closures (as reported in 9/14).
2015
Dispensing caps go further: an international project team from Hähl and Teamplast, Incap and Sumitomo (SHI) Demag developed caps suitable for liquid additives and granules, sellable in combination with a beverage or as an independent refill product (issue 5).
2017
Developed for aseptic filling of wide mouth bottles, RPC Group Obrist Madrid launched its 38 mm closure, as we report in issue 1+2.
At Interpack, United Caps presented, amongst other things, its 1881 petal flower cap. Developed for Wattwiller Mineral Waters, the unusual shape of the closure allows end-users to open bottles with minimum effort.
For the 26 mm and 29 mm neck, Bericap developed higher closures with a better grip (issue 4). In the same article, product piracy and counterfeiting are being encountered with closures with a folded and slit tamper evidence band or with laser printing across the TE band and closure. In our Drinktec preview in issue 8, Bericap introduces an extremely light 28 mm PCO 1881 flat closure for non-carbonated beverages.
Israeli company Water.IO is turning caps into smart devices, as we report in issue 8: The caps not only remind the consumers of keeping hydrated but turn the complete container in a connected device with many benefits such as re-ordering.
Corvaglia presents the digital printing of caps at Drinktec, matching the high speed of its own mould technology (issue 9).
Aptar launches sports closures for the on the go bottles market, a one-piece flip-top 28 mm PCO 1881 as well as the two-piece bi-injected closure for 29/25 mm neck finish (issue 11+12).
2018
We report in issue 1+2 on Bericap’s Neo 30/17 weight optimised version for the neck finish 30/25; the SnapCap 26: a hinge cap pressed on a lightweight 26/21 neck and the 33 mm neck closure for cold-aseptic or hot-filling recipes.
Silgan Closures GmbH Closures develop a plug and play system: The K-Seal ensures full plug engagement to the water cooler spike (issue 1+2).
In the run-up to NPE 2018, Corvaglia announces a 188 slitted/folded closure with a better grip. The closure features a 25% weight reduction compared to other 1881 closures while returning to the consumer comfort of 20 years ago!
Continuous growth of aseptically processed beverages and an increase of on-the-go beverage formats are reasons for Aptar to launch a new sportscap in a wide mouth neck finish. The 38 mm 1-piece closure is described in issue 5.
For issue 10 we fly downunder, visiting Coca-Cola Amatil’s plant opening of their new sports cap production line. Being made entirely of HDPE, it is easier to recycle than the traditional mix of HDPE and PP.
Also for on-the-go customers, the dispensing solution Guardian Light by Aptar is presented in the same issue.
In issue 12 Bericap highlights UV light barrier screw caps. The product range encompasses 33 mm neck caps and light weight 38 mm neck caps in all colours.
Capping
Companies
AFFABA & Ferrari srl |
AHIMSA GreenPET |
Alpla |
Aptar |
AL-CAP |
Altintas Goldcap |
AMS Ferrari |
Ant Packaging |
Arburg |
AROL |
AVE Technologies |
Belcap |
Bericap |
Berry |
BMB |
Bonino |
Bortolin Kemo |
Cantoni |
CanNeed |
CDS Viroplastic |
Clever Pack |
Contexo GmbH |
corvaglia |
CAPrint |
Creative Plastic |
CSI |
Eckel & Sohn |
Engel |
Europlast |
Ferromatik Milacron GmbH |
Finn Korkki |
FOBOHA |
GDXL |
Georg Menshen GmbH |
Green Box |
Greiner Packaging |
Guozhu Group |
Gulf Packaging |
Has Plastik |
Heinlein |
Himalayan |
Horst Hähl Kunststoffspritzguss & Werkzeugbau GmbH |
Htw Formen und Fertigungstechnik GmbH |
Husky Injection Molding Systems |
IMD |
Incap |
Induflex Sondermaschinenbau GmbH |
Intergulf Ltd. |
Intravis GmbH |
IntraPac |
IPR |
JSC Plastikse |
Kirin |
Kosme |
Köksan A.S. |
Milacron |
M/S Mechanical Systems |
MULLER |
Nampak |
Netstal |
Newamstar Packaging Machinery |
Ngoc Nghia Industry |
Novembal |
O. Berk Company |
P + S Technology |
Packsys Global |
Pass Card Co. Ltd. |
Plastic Closures Limited |
Productive Systems |
Retal |
Safe Cap |
Samkin |
S.B.E.C.M. |
Silgan Closures GmbH |
SmartSeal AS |
Sumitomo (SHI) Demag |
Sure Torque Europe ltd |
Teamplast |
Torus |
Vanta |
ViCap Systems |
Z-moulds |
Uner Plastik AS |
United Caps |
Universal Closures |
Vipoll |
Wisecap |
... |
Market surveys
Market survey are available for the following categories:
| Category | Company | Issue |
|---|---|---|
| Caps & closures Systems | Netstal | Issue 9/2021 |
| Caps & closures Systems | Engel | Issue 9/2021 |
| Caps & closures Systems | Sumitomo (SHI) Demag | Issue 9/2021 |
| Caps & closures Systems | Sacmi | Issue 9/2021 |
| Caps & closures Inspection | Sacmi | Issue 9/2021 |
| Caps & closures Inspection | IMD | Issue 9/2021 |
| Caps & closures Inspection | Pressco | Issue 9/2021 |
| Caps & closures Inspection | Intravis | Issue 9/2021 |
| Caps & closures Producer | Corvaglia | Issue 9/2021 |
| Caps & closures Producer | Has Plastik | Issue 9/2021 |
| Caps & closures Producer | Alpla | Issue 9/2021 |
| Caps & closures Producer | Retal | Issue 9/2021 |
| Caps & closures Moulds | z-moulds | Issue 9/2021 |
| Caps & closures Moulds | Corvaglia | Issue 9/2021 |
| Caps & closures Moulds | Sacmi | Issue 9/2021 |
| Systems for caps & closure production | Engel Austria | Issue 9/2020 |
| Systems for caps & closure production | Krauss-Maffei | Issue 9/2020 |
| Systems for caps & closure production | Husky Injection Molding Systems | Issue 9/2020 |
| Systems for caps & closure production | Sacmi | Issue 9/2020 |
| Closure inspection | IMD | Issue 9/2020 |
| Closure inspection | Sacmi | Issue 9/2020 |
| Closure inspection | Intravis | Issue 9/2020 |
| Closure production | Hodmeter | Issue 9/2020 |
| Closure production | Uner Plastik AS | Issue 9/2020 |
| Closure production | Europlast | Issue 9/2020 |
| Closure production | Retal | Issue 9/2020 |
| Closure production | Has Plastik | Issue 9/2020 |
| Closure production | corvaglia | Issue 9/2020 |
| Closure production | Alpla | Issue 9/2020 |
| Moulds for caps & closure production | z-moulds | Issue 9/2020 |
| Moulds for caps & closure production | Uner Plastik AS | Issue 9/2020 |
| Moulds for caps & closure production | corvaglia | Issue 9/2020 |
| Moulds for caps & closure production | Sacmi | Issue 9/2020 |
| Moulds for caps & closure production | z-moulds | Issue 10/2019 |
| Moulds for caps & closure production | corvaglia | Issue 10/2019 |
| Systems for caps | Sumitomo (SHI) Demag | Issue 10/2019 |
| Systems for caps | Husky Injection Molding Systems | Issue 10/2019 |
| Closure inspection | Pressco | Issue 10/2019 |
| Closure inspection | IMD | Issue 10/2019 |
| Closure inspection | Sacmi | Issue 10/2019 |
| Closure inspection | Intravis | Issue 10/2019 |
| Closure moulds | corvaglia | Issue 10/2018 |
| Closure moulds | z-moulds | Issue 10/2018 |
| Closure moulds | Husky Injection Molding Systems | Issue 10/2018 |
| Closure inspection | Intravis | Issue 10/2018 |
| Closure inspection | Sacmi | Issue 10/2018 |
| Closure inspection | IMD | Issue 10/2018 |
| Closure inspection | Pressco | Issue 10/2018 |
| Closure inspection | Sumitomo (SHI) Demag | Issue 10/2018 |
| Closure inspection | Husky Injection Molding Systems | Issue 10/2018 |
| Closure inspection | Intravis | Issue 05/2017 |
| Closure inspection | Sacmi | Issue 05/2017 |
| Closure inspection | IMD | Issue 05/2017 |
| Closure inspection | Pressco | Issue 05/2017 |
| Systems for cap/closure production | Netstal | Issue 05/2017 |
| Systems for cap/closure production | Milacron | Issue 05/2017 |
| Systems for cap/closure production | Sumitomo (SHI) Demag | Issue 05/2017 |
| Systems for cap/closure production | Husky Injection Molding Systems | Issue 05/2017 |
| Closure moulds | corvaglia | Issue 05/2017 |
| Closure moulds | z-moulds | Issue 05/2017 |
| Closure moulds | Husky Injection Molding Systems | Issue 05/2017 |
| Systems for cap/closure production | Ferromatik Milacron GmbH | Issue 11/2016 |
| Systems for cap/closure production | Sumitomo (SHI) Demag | Issue 11/2016 |
| Systems for cap/closure production | Husky Injection Molding Systems | Issue 11/2016 |
| Systems for cap/closure production | Arburg | Issue 11/2016 |
| Systems for cap/closure production | Engel | Issue 11/2016 |
| Moulds for cap/closure production | z-moulds | Issue 11/2016 |
| Moulds for cap/closure production | corvaglia | Issue 11/2016 |
| Moulds for cap/closure production | Husky Injection Molding Systems | Issue 11/2016 |
| Caps and closures | United Caps | Issue 06/2016 |
| Caps and closures | Gulf Packaging System Co | Issue 06/2016 |
| Caps and closures | corvaglia | Issue 06/2016 |
| Caps and closures | Intergulf Ltd. | Issue 06/2016 |
| Caps and closures | EKG Group | Issue 06/2016 |
| Caps and closures | Uner Plastik AS | Issue 06/2016 |
| Caps and closures | Aptar | Issue 06/2016 |
| Caps and closures | Silgan Closures GmbH | Issue 06/2016 |
| Caps and closures | S.B.E.C.M. | Issue 06/2016 |
| Caps and closures | Bericap | Issue 06/2016 |
| Caps and closures | Has Plastik | Issue 06/2016 |
| Caps and closures | Euro-Plast | Issue 06/2016 |
| Caps and closures | Retal | Issue 06/2016 |
| Caps and closures | Novembal | Issue 06/2016 |
| Caps and closures | AFFABA & Ferrari srl | Issue 06/2016 |
| Caps and closures | Vicap Global Ag | Issue 06/2016 |
| Caps and closures | CSI | Issue 01/2015 |
| Caps and closures | Retal | Issue 01/2015 |
| Caps and closures | S.B.E.C.M. | Issue 01/2015 |
| Caps and closures | Bericap | Issue 01/2015 |
| Caps and closures | Vicap Systems | Issue 01/2015 |
| Caps and closures | Intergulf Ltd. | Issue 01/2015 |
| Caps and closures | corvaglia | Issue 01/2015 |
| Caps and closures | Uner Plastik AS | Issue 01/2015 |
| Caps and closures | Alpla | Issue 01/2015 |
| Caps and closures | Aptar | Issue 01/2015 |
| Caps and closures | Silgan Closures GmbH | Issue 01/2015 |
| Caps and closures | Europlast | Issue 01/2015 |
| Caps and closures | AFFABA & Ferrari srl | Issue 01/2015 |
| Closure moulds | z-moulds | Issue 07/2015 |
| Closure moulds | corvaglia | Issue 07/2015 |
| Closure moulds | Husky Injection Molding Systems | Issue 07/2015 |
| Closure moulds | Fostag | Issue 07/2015 |
| Closure production systems | Engel | Issue 07/2015 |
| Closure production systems | Netstal | Issue 07/2015 |
| Closure production systems | Milacron | Issue 07/2015 |
| Closure production systems | Husky Injection Molding Systems | Issue 07/2015 |
