Protos Packaging are converters and stockists of a wide range of flexible packaging film products including reels, bags, sheets and shapes that service both food and non-food market sectors. Certification to the British Retail Consortium Global Packaging Standard is assurance of our commitment to quality and customers can depend on the support and advice of our friendly and knowledgeable sales team.
We believe that it is our unique blend of strengths that make Protos stand out from the crowd. Our winning blend includes our friendly and knowledgeable sales team, reliable and timely deliveries, wide range of flexible packaging film products offered and unrivalled expertise in flexible packaging. From conception to completion, Protos offers the total package!
Customising our range of flexible packaging products with a striking and original flexographic printed design offers you a unique marketing opportunity to create and strengthen your brand image and corporate identity – while at the same time making your products stand out from the crowd. We can help you create your own individual pack from the design stage through to the finished flexible packaging product.
Polypropylene (PP) is a thermoplastic polymer, part of the polyolefin family, that is used in a wide variety of applications including packaging. It is produced from propylene molecules, an oil-based product, that are joined together following a melting process called polymerisation. The result is an extremely versatile and cost effective packaging film that gives excellent moisture resistance. It is economical due to its low density and has replaced other materials such as cellophane and polyethylene.
Extra coatings can be applied that improves polypropylene film’s barrier to oxygen (PVdC coating) and aromas (acrylic coating) as well as giving a superior gloss to enhance pack aesthetics. Surface treatments can also be applied to provide anti-mist qualities and allow adhesion of printing inks.
Polypropylene film is suitable for food contact, in fact 90% of polypropylene packaging film is used for food applications. Other applications include film packaging for stationery products, tobacco, textiles and pharmaceutical products.
PET (Polyester film) is a thermoplastic polymer that is manufactured from stretched polyethylene terephthalate. In a molten state PET film is extruded and then stretched in two directions to produce a packaging film that is high in tensile strength, has exceptionally high clarity and offers good gas and aroma barrier properties. A major characteristic of PET film is that it can withstand extremes of temperature – from -75oC to 220oC – therefore it can be safely used in both freezers and heated in microwaves and conventional ovens. Permeability to gas may be enhanced by a thin layer of aluminium or other metal and the metallised PET may additionally be laminated to a polyethylene for superior puncture resistance or barrier properties. Metallised PET laminates can be converted into a range of pouches suitable for, e.g. liquid packaging and convenience foods.
Polypropylene packaging is considered the workhorse of flexible packaging films across many market sectors, most notably food applications. Polypropylene is a highly versatile packaging film with superior machineability that enables it to be easily converted into a variety of flexible packaging products including single-wound and centre-folded reels, sheets, shapes, bags and sleeves. Polypropylene packaging offers better value for money than other flexible packaging film substrates, such as cellophane, laminates or polyethylenes, on account of its low density. This offers many advantages - you get more packs for your money, it’s better for the environment and it has a positive impact on packaging companies’ legal obligations under the 2007 Packaging Waste Regulations – all adding up to real cost savings for producers and consumers.
Compared with other thermoplastic polymer packaging films (e.g. polypropylene, polyethylene, pvc), polyester film offers unique physical properties. For improved product presentation, polyester film offers superior clarity and gloss while it’s greater tensile and tear strength enhances pack integrity. Polyester also has a lower oxygen permeability rate than all other plastic packaging films (apart from nylon) that leads to improved shelf life without having to apply extra coatings to the film surface, as with other packaging films. Having a higher melt point, together with superior strength, allows larger operating windows on temperature and tension controls when running polyester film on automatic packaging machinery. Polyester’s higher melt point also allows the film to be sealed to a range of rigid materials, such as glass, steel, aluminium, as well as non-plastic flexible materials, such as paper and foil. These distinctive range of properties have secured a unique role for polyester film in the range of flexible packaging films that are available on the market.
Protos Packaging is a major stockist and converter of polyester (PET) packaging film. With warehousing and manufacturing facilities housed together on the same UK site, not only are we cushioned from long delivery lead times from overseas raw material suppliers, we are able to convert polyester swiftly and efficiently into a range of polyester film packaging products tailored to suit the needs of your product. In view of our large stockholding, we can supply polyester film mill rolls to fellow converters who may need supplies more quickly than is being offered from polyester manufacturers.
Cellophane is a flexible packaging film manufactured from regenerated cellulose that comes from wood pulp. While cellulose is the correct term, it is widely known as cellophane, which is the registered trademark of Innovia Films Limited in Wigton, Cumbria. While cellophane has dwindled as a flexible packaging film due to more versatile and cost-effective alternatives, it offers unique qualities that help maintain its popularity as a packaging film. Firstly, unlike its thermoplastic polymer rivals, it is 100% biodegradable. Secondly its permeability to moisture means that products are allowed to “breathe”, therefore it is useful for food that has high moisture content and for cigar packaging. Thirdly it is heat resistant and can be used to pack food products that are re-heated at point of sale and last but not least, cellophane packaging film has dead fold characteristics and can be used for twistwrap in confectionery packaging.
Polypropylene is an extremely versatile lightweight packaging film that gives offers superior strength, flatness and clarity and is an ideal packaging film substrate for bag manufacture. At Protos Packaging we manufacture a wide range of polypropylene bags that are suitable for a variety of products for food and non-food end uses. Our polypropylene bag range includes side weld, side seal, lap seal, side- and bottom-gussets, “Titan” super strength, watertight pouch and punched hole constructions that additionally may be micro-perforated or printed to enhance brand awareness. Plain and micro-perforated polypropylene bags may also be supplied on metal wickets for ease of packing in bakeries and snack food companies and a large range of standard sizes are available ex stock.
A major end use for flexible packaging films, particularly biaxially oriented polypropylene (BOPP), is bakery packaging. As a flexible packaging film converter, Protos Packaging is well placed to service your flexible bakery packaging needs from single-wound polypropylene reels for automatic wrapping on flowrappers to centre-folded polypropylene reels for semi-automatic wrapping on L Sealers, the workhorse of the small- to medium-sized bakery. We also supply bags (Snappy and bespoke) for hand packing and sheets/shapes for interleaving and handling patisserie goods. Our bakery packaging can be manufactured in plain or micro-perforated packaging films to suit the needs of your product and printed with your own logo or one of our generic seasonal print designs. As well as offering a bespoke manufacturing service, we hold an extensive range of standard bakery packaging items on the shelf including single-wound and centre-folded packaging film reels, Snappy bags supplied on metal wickets, micro-perforated baguette bags and counterwrap sheets. Specialist bakery packaging films are also available for goods that are more demanding, such as having high moisture content or distinctive aromas.
Biaxially oriented polypropylene (BOPP) film is produced when polypropylene film is stretched in both machine direction and across machine direction directly following extrusion when the polymer is still in a molten state. Stretching the film orients the propylene molecules that increases strength and clarity and reduces gas and moisture permeability. BOPP is a highly versatile and cost effective packaging film that is widely used for packing products such as confectionery, fresh produce, morning goods and snack foods. Extra coatings can be applied that improve BOPP’s barrier to moisture, oxygen and aroma, improve gloss and allow adhesion of printing inks.
Oriented polypropylene (OPP) film is a thermoplastic polymer that is stretched in one direction directly following extrusion when the polymer is still in a molten state. OPP undergoes a different manufacturing process to biaxially oriented polypropylene (BOPP), which is stretched in two directions rather than one. Accordingly it offers different properties to BOPP, notably it has superior tensile elongation which means it is a film with greater “stretch” and is therefore suitable for clothes packaging, magazine covers, pharmaceuticals where resistance to tear is required. OPP film can be coated to increase barrier properties and allow adhesion of printing inks and increase machineability.
Packaging coffee is the process of enclosing roasted coffee (either ground or as whole beans) to protect it from environmental effects, namely sunlight, moisture and oxygen. The demands of coffee packaging are extremely high due to its distinctive taste and aroma, both of which it is important to preserve if the coffee is to be enjoyed at its best. As a manufacturer of flexible packaging, Protos Packaging understands the specific requirement for coffee packaging and can offer a wide range of packaging options including packaging film reels for overwrapping multi packs of coffee bricks to flexible packaging bags that can be manufactured in a variety of styles, e.g. pouch bags, blockbottom style “Titan” bags, side or lapseal, from a choice of packaging film substrates to suit your product needs. To optimise branding of your product range, we can supply coffee packaging printed with your own design, or choose a standard print from our range of generic designs.
Food packaging has specific requirements. It offers critical physical protection to food items during transportation and reduces risk of contamination, environmental protection such as oxygen, moisture and UV light, provides information on ingredients, how to use/cook the food items and and can be used as a marketing tool when printed with the producers’ own brand. Food packaging is also convenient as a medium for grouping items together for transportation and storage, e.g. tea, muesli, sliced bread, sweets, and offers features that can facilitate distribution, handling, point of sale and use and re-use. At Protos Packaging we confirm that all our flexible packaging film products are suitable for direct contact with food and, as an assurance of quality, we are certified to the British Retail Consortium Global Packaging Standard. We understand the specific requirements for food packaging and can provide expert advice on providing the flexible packaging film products that best suit your product’s individual needs. As food is a fast-moving consumer good, we also understand how crucial it is for deliveries of food packaging to be fast, reliable and timely and a key strength of Protos Packaging is the level of service we provide to food manufacturers. This level of service is backed up with a wide range of standard food packaging items available on the shelf. Our ex-stock service is back-up with manufacturing processes that enable us to customise food packaging to meet our customers’ specific requirements.
The term “flexible packaging” encompasses sheets, bags and wraps that are made of easily yielding materials such as plastic film, paper or foil which, when filled and sealed, acquires a pliable shape. Protos Packaging is a supplier and converter of flexible packaging, primarily from thermoplastic polymer films, but also offers a small range of specialist films such as cellophane and a range of Eco-films. Our conversion facilities include slitting, micro-perforating, punching, folding, bag-making, printing and sheeting and we can therefore offer a wide range of flexible packaging products to suit the unique requirements of our customers. The flexible packaging products broadly include packaging reels for use on flow wrappers, centre-folded reels for use on L Sealing machine, sheets and bags for hand-packing in a variety of flexible packaging film substrates. All our products can be supplied flexo-printed to enhance branding of your product and a range of micro-perforation patterns are available.
Flexible packaging bags are manufactured from a variety of packaging film substrates. As the majority of packaging films are manufactured from thermoplastic polymers, bags are constructed by being heat-sealed together. However, even packaging films that are heat resistant, such as cellophane, can be coated in order to facilitate heat-sealing during manufacture and after packing. At Protos Packaging our wide range of bags are manufactured using a variety of constructions ranging from a simple side weld bag, where the seals are formed using a hot knife (suitable for greetings cards) to 5mm width watertight seals (suitable for liquids and bulky products). Prior to heat seal construction, the flexible packaging film substrate can be printed or micro-perforated to produce a more specialised bag. In addition to bespoke bags manufactured to a customers’ exact specifications, we also offer a full range of bags ex stock in popular sizes used in the bakery and snack food industries.
For automatic wrapping of your products, our range of flexible packaging films at Protos Packaging may be supplied in a format to suit your particular packaging equipment. Our reels are supplied in single-wound or centre-folded format to suit both automatic and semi-automatic machinery and may be plain, printed or micro-perforated. We can manufacture packaging film reels to your exact specification or you may choose from our extensive range of standard sized single-wound and centre-folded films ex stock. We offer a choice of packaging film substrates from the highly versatile thermoplastic polymers such as biaxially oriented polypropylene (BOPP), polyester, laminates, polyolefin and nylon, to more specialist films such as cellophane and starch-based Eco-films. Additionally, as converters of packaging film, we can manufacture other flexible packaging film products such as sheets, shapes, bags and tubing.