By dramatically improving the characteristics of plastics,
biaxial stretch-blow container molding technology has become an indispensable part of our modern lives.
Direct Heatcon is a unique molding technology developed by Aoki that eliminates the need for reheating by enabling preforms to be injection molded and heat conditioned at the same time.
With Direct Heatcon technology, raw material is molded into finished containers in just three stations.
The manufacture of high quality, high strength, thin-walled, lightweight containers depends on precision heat conditioning. Direct Heatcon opens the way to higher added value container molding by enabling this heat conditioning to be carried out simultaneously with injection molding.
Molding containers directly from raw material on a single machine using the minimum number of molding steps minimizes the risk of breakdowns and defects.
By using residual heat from the process of injection molding preforms from raw material, Direct Heatcon eliminates preform re-heating costs, reduces preform cooling time, and enables chillers to be downsized. This can drastically reduce unit molding costs and enable higher volume production.
Transportation costs can also be reduced, since Direct Heatcon eliminates the need for preform transportation that frequently constitutes a part of the reheating method.
With molding systems that involve reheating preforms, there is always a layer of air between the heater and preform that results in a tendency for temperatures throughout the preform to equalize, and makes creating an accurate temperature differential that much more difficult.
Because Aoki's Direct Heatcon molding technology enables preform heat conditioning to be carried out simultaneously with injection molding, meticulous and precise temperature control of the preform is possible.
By controlling preform wall thickness, injection pressure, injection speed and cooling time, as well as creating an accurate temperature profile, the single stage, three-station mechanism enables preforms to be stretch-blown promptly while still in their optimum temperature profile.
With an Aoki machine, you can mold containers that remain true to your ideas.
We leverage our extensive experience and technical capabilities to address a wide range of needs,
including lightweighting, heat resistance, functionality and chemical resistance.
Is purchase price the only criterion you are using for selecting machines to maximize your return on investment?
Do you rely only on hourly production, molding cycle, power consumption and production costs
when evaluating the performance of your machines?
We address container lightweighting and thinwalling needs by combining our advanced technological development capabilities with our Direct Heatcon molding technology.
Our innovations in this area, which include blow technology designed to lighten the neck section, solutions to off-centering when molding ultra-thin oval bottles, and technologies for molding containers with walls of even thickness and for countering
vacuum deformation in wide mouth containers, enable the molding of high added value containers.
Lightweighting through the use of neck section blow technologies and other means also enables the molding cycle to be shortened.
Heat resistance, airtightness, chemical resistance, strength and impact resistance are just some of the increasing diversity of functions and characteristics required of containers. These days,
it is important to choose the optimum raw material for the type of usage, function and filling requirements of the container.
Even containers that previously needed to be made of glass, because of its chemical resistant properties, are increasingly being replaced by safer plastics as more high performance plastic materials are being developed.
Stable container molding is now possible with plastics such as PET, PC, PP, HDPE, HIPS, PEN, PE and PA that have varying characteristics.
There are a huge number of different characteristics required of plastic containers, and the levels required are increasing as well. In addition to the most basic requirements of shelf life and portability, there are many more requirements such as usage-related convenience (easy pouring, easy emptying) that are
more obvious to the user, and diverse functions are demanded of different products (solids, liquids, high and low viscosity products).
Other needs that are increasing are improved branding and customer appeal through container design, while reducing environmental load has also become an increasingly important aspect lately. We are responding to these various market needs
by continuing to deliver containers with even more added value.
We are implementing an original project that makes full use of
our technologies as a resource-saving initiative.
The AOKI eco PROJECT is a used PET bottle recycling system.
The project is receiving high praise around the world as it enables 100% recycled PET flakes from washed and shredded used PET bottles to be used directly to produce new PET bottles.
AOKI Series molding machines are able to mold very high quality containers from 100% recycled PET flake material. With this series, we leveraged our original Direct Heatcon injection stretch-blow molding technology to develop a molding process that enables the direct use of 100% recycled PET flake material.
The technology requires much less energy than normal technologies for molding from recycled pellet material.