Caps and closures developments: Difference between revisions

(6 intermediate revisions by the same user not shown)

Line 1:

[[File:Caps-Header.jpg|center]]

~~~~

=='''A review of caps and closures developments'''==

== '''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.'''

Line 42:

==Caps and closures – some highlights 1999 to 2019==

<big>'''Caps and closures – some highlights 1999 to 2019'''</big>

<br>

Line 92:

Line 93:

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.

{| class="wikitable sortable"

Line 107:

Line 109:

|}

'''''Global caps and closures market, based on beverage container units filled <br />and an estimated annual growth of 5.2% (source: Krones Group Annual Report 2017)'''''

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.

Line 124:

Line 123:

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.

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.

<br>

Line 173:

Line 174:

[[File:Caps 5-300x215.jpg|200px|thumbnail|left|SnapCap 26]]

[[File:Caps 3-300x201.jpg|200px|thumbnail|right|38 mm 1-piece flip-top PP closure]]

[[File:Caps 4-e1549136109219-300x216.jpg|200px|thumbnail|left|UV barrier closure, developed for the dairy industry]]

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.

Line 180:

Line 182:

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.

~~[[File:Caps 4-e1549136109219-300x216.jpg|200px|thumbnail|left|UV barrier closure, developed for the dairy industry]]~~

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.