At birthday parties, balloons serve as colourful decorations and can be made from a variety of materials. These balloons are selected based on their key features. Whether you want them for a birthday party, a wedding, or just a casual gathering, they can be a great addition to your event. They add a festive touch to your events with their floating effects and vibrant colors.
However, many people do not know what balloons are made of and how these various materials can affect their longevity, visibility, and environmental impact. Regardless of their appearance, understanding more about balloon materials can help you make better choices for your celebrations.
Natural Latex
Natural latex is the most common material used to make balloons. These balloons are known for being traditional and flexible, which is what many people know for childhood parties.
What is Latex?
As a natural, plant-based substance, Latex is harvested from the rubber tree, known as Hevea brasiliensis. The process of collecting this sap is called tapping, a method close to how maple syrup is harvested, and it has no negative impact on the tree. Since it is derived directly from the plant, natural latex is eco-friendly and decomposable.
How Are Latex Balloons Made?
The process of making latex balloons is simple and clear.
- Compounding: To create various colours, raw liquid latex is combined with dyes. A small amount of chemicals is also added to increase the balloons’ flexibility and durability.
- Dipping: Metal moulds shaped like balloons are dipped into the prepared latex mixture.
- Curing: The latex-coated moulds are then heated using an oven to cure the rubber, which makes it more stretchy and stronger.
- Finishing: After curing, the balloons are removed from the mould and cleaned to eliminate any remainder. Before packing, they are tested to be of high quality.
Properties of Latex Balloons
- Biodegradability: These balloons are made from natural latex and decompose just as quickly as an oak leaf, making them an environmentally friendly option.
- Porosity: These balloons are porous, with microscopic holes. That is why helium-filled latex balloons steadily lose gas from inside over 8-12 hours because the small atoms of helium float away.
- Elasticity: One of the key benefits of these balloons is their ability to elongate considerably.
Foil (Mylar)
Foil balloons are recognised for their bright, smooth, and shiny appearance. They are also known for their versatility in forming letters, numbers, and well-known characters.
What is Mylar?
Although they are known as foil balloons, they are not actually made of metal. The material used to make Mylar balloons is a type of plastic film known as BoPET (Biaxially oriented polyethene terephthalate), which is why it is often a famous brand name. A thin layer of aluminum is applied to this plastic sheet to give it a shiny, smooth finish.
How Are Foil Balloons Made?
Main steps in creating foil balloons include:
- Printing and coating: The nylon plastic sheets are printed with various designs. These sheets are then coated with an aluminium layer.
- Cutting and sealing: Two printed sheets are then cut into the shape of a star, a number, or a cartoon character. They are then positioned together and sealed around the edges using heat.
- Valve insertion: Before applying the final seal, a small self-valve is inserted into the balloons to allow inflation.
Properties of Foil Balloons
- Durability: Foil balloons are not as porous as latex balloons, so they sustain helium for a long time.
- Reusability: These balloons can be flattened and stored for reuse, providing great value.
- Appearance: The material used in foil balloons provides detailed, sharp printing and is available in various shapes.
Specialty Plastics
Balloons that are created from various forms of plastic materials other than latex or foil. These types of balloons are made for significant purposes, shaped in round, crystal-clear balloons filled with confetti or smaller balloons. These are also called bubble balloons.
What Are They Made From?
These balloons are made from flexible, long-lasting plastic, such as polyurethane. This material differs from both Mylar and latex and is designed to be more flexible.
Properties of Bubble Balloons
- Clarity and shape: These balloons are crystal clear and inflatable spheres.
- Non-allergenic: Specialty plastics provide a safe and attractive alternative for individuals allergic to latex.
- Long-lasting: These balloons are airtight and remain floating for an extended period.
What Gives Colour to Balloons?
A major effort is needed to make visually appealing balloon designs. During the production period, balloons are painted, adding finishing touches to the product. To make standard latex balloons, some additives are added to the liquid latex before shaping the balloon. This ensures the balloon’s colour remains consistent. For foil balloons, the manufacturer applies the design to the balloon’s surface using specialised printing methods. The pigment itself is designed for longevity, staying bright without fading over time. However, longevity depends on the manufacturer’s materials, which is why Balloon Decor London uses high-quality balloons to create vibrant and lasting displays.
Balloon Essentials: Strings and Weight
The additional elements are added to balloons to enhance showcasing and functionality.
- Strings are made of nylon, plastic, or cotton.
- Weights are used to prevent balloons from drifting away and are made from heavy plastic, metal, or a combination of the two.
Conclusion
The balloons used at parties may seem very simple, but they are made from specific materials with different levels of elasticity, longevity, and visual appeal. From natural latex to metallic foil and specialised plastics, every type of balloon has a distinct function in creating a beautiful event. Knowing what goes into making each balloon helps you select and consider the right ones for your events.