Page 25 - Plastics News October 2016
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FEATURES
Recycled PET use in hot-fill bottles has no significant impact: Study
The study concludes that converters and brand owners can use up to 50% good quality rPET in
hot-fill bottles without negatively impacting performance
The use of recycled polyethylene terephthalate (rPET) and maximize preform
in hot-fill packages has no significant adverse impact on temperatures. The
the bottles until the blend exceeds 50 percent, according objective was to
to a research study conducted by Plastic Technologies ensure that the only
Inc (PTI). difference was the
amount of recycled
As per the study, conducted by Plastic Technologies content.
Inc, converters and brand owners can use up to 50%
good quality rPET in hot-fill bottles without negatively The bottles were then
impacting performance.This study was focused on tested to determine
evaluating virgin PET and two different rPET resins added hot-fill and top load
to virginPET at 25 percent, 50 percent and 100 percent performance, wall thickness, color, haze, crystallinity
levels. A 27-gm commercial 500 mL six-panel hot-fill and acetaldehyde (AA) content. Following are the main
bottle and preform were used for the study. As a leader in study conclusions:
plastic packaging development, PTI conducted the study
to provide information for brand owners contemplating • All of samples passed the standard performance
including a percentage of rPET in their hot-fill bottles as specifications for hot fill bottles, even at high
part of their environmental initiatives. percentages of rPET.
“Even at 100% rPET resin use, the performance of the • Shrinkage increased slightly as the recycled content
bottle used in this study was still acceptable,” said Tracy grew above 50%, but the bottles remained within the
Momany, vice president product development group, PTI. specification.
“However, the typically-thicker walls of hot-fill bottles
may result in slightly more noticeable haze or yellowing • The drawbacks of high rPET content are increased
than other applications such as very thin-walled water yellowing and higher haze levels. However, these are
bottles.” This study was focused on evaluating virgin PET aesthetic issues and do not impact performance.
and two different rPET resins added to virgin PET at 25%,
50% and 100% levels. A 27g commercial 500mL six-panel The study concludes that converters and brand owners
hot-fill bottle and preform were used for the study. Bottles can use up to 50% good quality rPET in hot-fill bottles
containing recycled-content variables were processed without negatively impacting performance. rPET
similarly to maintain equivalent bottle wall thicknesses levels greater than 50% can also be used, however
desired package aesthetics will drive the acceptable
level. Additional study details are available here.
Thermoforming an updated charity bin for the 21st century
US based NGO Goodwill Industries and thermoformer Ray Products Co. Inc. are taking charity donations
into the 21st century.
Live and let live is the principal of the universe and as number of players in the nonprofit sector. A strong
we say Charity begins at home. economy, growing wealth and greater global interest in
India have underpinned this growth in the philanthropic
In the five years since, the philanthropic space has been activity of individuals and corporations. The potential
completely transformed in India. Today, a deeper pool pool of donors—India’s HNWI and ultra-high-net-worth
of donors donates larger amounts of money to a greater individual (UHNWI) population—grew at 12% CAGR during
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