Did you know that the first bottle cap was made in 1890? Since then, the humble bottle cap has undergone many incarnations. When plastic was introduced into the manufacturing of consumer products, most caps these days are made of plastic. Even the word “cap” has had a change in meaning. What once referring almost exclusively to the cap on a bottle of beer or other beverage, a cap today can be used to cover anything from a beverage to a bottle of body lotion. Whatever the purpose of the cap, plastic caps are by far and away more widely used than any other kind.
Plastic caps come in all different size, shapes, colours and configurations. The benefit of plastic caps is that they are lightweight, durable and easy to remove. Unlike metal caps, there is no other tool needed to remove the cap. Each type of cap is designed to perfectly meet the needs of each company’s design. Plastic caps also have the benefit of being able to be manufactured in virtually any colour under the sun.
Plastic caps are also generally considered to be “non-reactive”. That means that in the case of bottling things such as medications or food-grade products the plastic won’t cause a negative reaction with the product once it is poured out or otherwise comes in contact with the cap. Other types of caps, such as those on bottles of motor oil or cleaning products, don’t necessarily need to be non-reactive because of the nature of the product inside, but often these caps are anyway.
The style or type of the cap used is largely determined by the end use of whatever is inside the bottle. If the product would be best squeezed out, for example, a cap with a small hole would likely be used. If the contents of the container are to be used only ones (on a sample-size bottle of shampoo, for example) a flip up cap may be used. Threaded caps are used on bottles such as salad dressing, which is designed to be opened multiple times. Childproof caps are used on bottles that contain medicine or other products that could be harmful if accessed by a child.
Plastic caps are very versatile, affordable and can be designed to meet the needs of a variety of end users. Because of that, they are very popular in virtually every industry, save for possibly the production of beverages such as wine and beer and certain varieties of condiments. By and large, however, most industries use plastic caps on their bottles.
Companies specialize in creating customized capping solutions for a variety of clients. They can work with each client to determine their particular needs sand come up with a solution that will work best not only for each client but also for each product in their line.