Food Packaging Materials. Comparison of Materials Used for Packaging Purposes
Table Of Contents
Project Abstract
<p> <b>ABSTRACT</b></p><p>
Packaging industry was transformed significantly over couple of decades and the world’s
dependency on plastic materials takes its toll. Packaging industry has direct effect on waste
created by households since manufacturers choose packaging processes and materials. Littering and unsustainable waste management options are concerning society and create
pressure on companies that operate globally. New materials are being developed and tested
for regular packaging of commonly used goods.
Three common products packages are studied chocolate, tea and milk packaging. Each of
these products has various forms of package design with use of different materials, essentially based on product’s requirements and characteristics. This thesis’s objective is to analyse how certain packaging materials fulfil chosen functions. It was discovered that currently
the packaging materials are fundamentally different than 50 years ago. Plastics continue to
dominate the market while other materials for packaging such as paper and metals remain
being commonly used, however, glass is becoming rare as type of package material. In
addition, packaging industry introduces new innovations in identification, recycling and monitoring of environment, in forms of intelligent and active packaging combined with technology .</p><p><b>Keywords Packaging, package, milk, chocolate, food, packaging functions, manufacturing, production, logistics, package, sustainability, plastics, packaging materials
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Project Overview
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1 Introduction </p><p>Keywords such as “food” and “packaging” relate to variety of new articles, publications
and materials when typed into search bar. Nowadays, the topic of packaging arises interest seeking more detailed information about different aspects and influence it has
over supply chain and consumer’s attitude. The potential of package itself is still one of
concepts in companies that are not developed to its true extent. The awareness about
the issue is presently rising, and there is growing number of materials to learn from, as
this issue taps into every individual’s life. In addition, it affects companies in multiple
various ways starting from presentation of products to customer, resources apportionment, protecting products, however the materials can also influence logistics, waste,
cost structure and environment as explained further in other chapters. The packaging
industry totally covers 2% of the gross national product (GNP) in developed countries
(Robertson, 2013: 1), having potential to rise in the future because new products enter
market every day. As Coles and Kirwan mentioned in the beginning of the book Food
and Beverage Packaging Technology, there are rising pressures from the public and
organisations that attempt to convince large brands producing physical goods to be conscious about environment and consider their impact on it by choosing sustainable packaging (Coles and Kirwan, 2011: 2).
The issue does not only cover the material used on the package itself, but also the waste
regulations, energy allocation while considering the purpose of the package itself. As J.P.
Jacob (2010) mentioned in his book about food packaging: there are three functions of
a package: preservation, presentation and protection. Determining his three attributes
is rather simple, logical but it leaves aside other necessary functions to consider. He was
followed by Gordon L. Robertson (2013), who describes four package functions: Containment, Protection, Convenience and Communication, also taking into account consumer’s usability factor so the package is easy to open, and possibly close, carry, handle,
dispose of. The opinion about package functions is argued by many other authors based
on their expertise. For example, Will Burke who is a branding and packaging expert,
identifies three main categories when choosing a successful package design: authenticity, meaning and whether it is compelling with the brand image (Burke, 2011).
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This thesis analyses package materials used for three products: tea, chocolate and milk,
which are familiar to audience and they represent typical household products purchased
rather often. Modern companies do not use package only as a means of cover for the
product, they developed it as a tool which enables brands to communicate with customers, it contains information not only about the content of the package itself, but about
the brand. there is a whole science behind choosing colours, fonts, images and other
means of presentation which are the main focal point of design team, later followed by
the engineering side of the manufacturing which has to bring the concept to life. It would
be ideal if sustainability, energy and waste management would be on top of designer’s
mind when creating new product, however as evidence from grocery stores, supermarkets and department stores across the world shows, in most large brands, there are
usually different priorities.
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<b>1.1 Research Question and Aim of This Thesis </b></p><p>The aim of this paper is to analyse packaging industry with focus on frequently used
materials and the role of synthetized polymers with emphasis on sustainability. To provide all readers with sufficient information, this paper includes history of packaging, regulations regarding materials that come to contact with food, product marking and symbols used, plus a short introduction to sustainability and logistics aspects that influence
packaging market today. Technology and new materials allow companies to substitute
elements which cause emissions together with post-consuming issues (such as littering
and increased waste) for renewable, recyclable and re-usable resources.
Which compounds are performing on highest level for chosen products, considering the
packaging functions?
The research question is derived from the fact that majority of packages are not universal
or suitable for all the products they are used to cover. Every product has specific requirements for packaging, therefore certain package materials are performing on higher
level to sustain its desired condition. The reasons why certain package types provide
enhanced fortification is explained further in this thesis when considering packages of
three specific products. Example of advanced level of performance could be demonstrated with milk. Using a package that provides light barrier extends the shelf life and
protects milk substance when exposed to daylight. Moreover, even packages that maintain thermoregulation are available, even if not companies are using those as their packaging material. Finally, it is obvious that laminated carton box represents advanced form
of milk packaging than transparent glass bottle.
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<b>1.2 Methodology and Research </b></p><p>The study is based on secondary qualitative research of literature about packaging technology with regard on three products: milk, tea and chocolate. These three products
were chosen based on familiarity and popularity among consumers. Tea, chocolate and
milk are products purchased globally and they are simply recognized.
Tea represents dry product category and therefore it connects to those types of packaging suitable for majority of dry food products such as: candy, flour or peanuts. Milk
represents still drink category, even though, milk is bio-based and more difficult to maintain fresh. Therefore, it represents common drink category such as water, soda, other
drinks packaged in bottles, plus the conservation requirements of milk could be applied
to other products that have to be sterilised such as pickled products which are packaged
in similar fashion. Chocolate embodies food category that is thermos-sensitive in order
to remain is specific shape, similar to other products as butter or cheese.
Information provided in this paper is founded on multiple recent publications, online
research and knowledge gained throughout studies without affiliation to any companies
or organisations. Majority of information is based on factual data; however also fundamental packaging theory is mentioned as well. The thesis includes introduction into fundamentals of packaging, history and development of packaging materials, government
regulations, sustainability and logistics followed by direct description of packaging types,
their benefits and disadvantages throughout company’s supply chain.
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