Navigating the New Landscape: A Deep Dive into MoCRA's Modernization of Cosmetics Regulation
Explore the Modernization of Cosmetics Regulation Act (MoCRA) of 2022, a landmark legislation transforming the beauty industry's safety and transparency standards. Learn how it impacts brands, consumers, and the future of cosmetics regulation.
Packaging Perfection: How to Choose the Ideal Tube for Your Product
Find the key to perfect packaging with our guide, choosing the ideal tube for your product. Explore materials, printing, and shapes. Ensure integrity with the right closures and seals. Get expert advice for tailored solutions that set your product apart.
How Can I Decorate My Tube?
Learn to decorate tubes with silk screening, hot stamping, and custom colors. Enhance your brand with tailored closures and vibrant packaging designs, focusing on aesthetics for extruded, laminate, or aluminum tubes.
The Anatomy Of A Tube
Dive into the essentials of tube packaging with O.Berk's Packaging Crash Course. This concise guide covers everything from tube anatomy and sealing methods to customization options.
Liner - The Often Overlooked Element Between Your Cap And Bottle
Liner is a piece of material that sits between the cap and the bottle. It's primary function is to offer proper sealing of the product and often times it determines the closure's fit and function viability. Click here to learn more
What Happens When You Recycle?
The two most common recycling processes are single-stream recycling and dual-stream recycling. Single-stream recycling is when all of the recyclables are placed into the same bin for curbside pickup and sorted at the recycling facility.
Aluminum: The Forever Metal In Packaging
Aluminum has been a staple in the home and a cornerstone in the world's recycling stream for generations - click here to learn more about this forever metal's history and its place in a sustainable economy.
Mechanical And Chemical Recycling
In today's Packaging Crash Course, we will cover two recycling methods and their distinct processes that enable us to provide sustainable solutions: Mechanical and Chemical Recycling.
Packing Methods
This list is a quick rundown of some of the most common packing methods utilized in the packaging industry.
Poise - Unit of Measurement for Viscosity
Since its discovery, in the early 19th century the poise (P) has been used as the unit of measurement for viscosity. It has contributed significant advancements in product manufacturing, particularly in food, personal care, and pharma.
Natural Or Nitrile Rubber For My Dropper Assembly?
There are materials that make a huge impact on our everyday lives, but little do we consider where they are from and how they are manufactured. An example of such a material given little attention to is rubber. Click here to learn more.
The Premiumization of Private Label ― Innovation Leads the Way
Private label products have blurred the lines between their name-brand counterparts in their perceived quality. From the materials used, branding, and packaging, private labels have changed the perception of consumers and their buying habits.
Creating glass containers can be accomplished by one of two different processes – the Blow and Blow, or the Press and Blow process. Each process is chosen based on the kind of glass bottle being made. All glass bottles start out as raw materials. Silica (sand), soda ash, limestone, and cullet (furnace-ready, recycled glass) are combined into a specific mixture based on the desired properties of the bottle. The mixture is then melted at high temperatures in the furnace until it becomes a molten material, ready for formation. The type of glass this mixture will produce is known as soda-lime glass, the most popular glass for food and beverages.
Glass Forming Methods
Molten glass gobs are cut by a perfectly-timed blade to ensure each gob is of equal weight before it goes into the forming machine. The weight of a gob is important to the formation process for each glass container being made. The molded glass is created by gravity feeding gobs of molten glass into a forming machine, where pressure forms the neck and basic shape of the bottle. Once the neck finish and the general glass bottle shape has been achieved, the form is known as a parison. To achieve the final container shape, one of two processes are used.
Press and Blow Process
The Press and Blow process is the most commonly used method in glass bottle manufacturing. It uses an individual section (IS) machine, which is separated into varying sections to produce several containers of the same size simultaneously. The molten glass is cut with a shearing blade into a specific gob size. The gob falls into the machine by force of gravity. A metal plunger is used to push the gob down into the mold, where it starts to take shape and become a parison. The parison is then transferred into the blow mold and reheated so that the parison is soft enough to finish off the dimensions of the glass. Once the parison is reheated to blowing temperature, air is injected to blow the container into shape. Press and blow methods are typically used for manufacturing wide-mouth bottles and jars as their size allows the plunger into the parison.
Blow and Blow Process
The Blow and Blow process is used to create narrow containers. It also requires an IS machine, where gobs of molten glass are gravity fed into the mold. The parison is created by using compressed air to form the neck finish and basic bottle shape. The parison is then flipped 180 degrees and reheated before air is again injected to blow the container into its final shape. Compressed air is once again used to blow the bottle into its desired shape. Blow and Blow methods are best used for glass bottle manufacturing requiring different neck thicknesses.
Finishing the Process
Regardless of the process used, once the bottle has been completely formed, it is removed from the mold and transferred to the annealing lehr. The lehr reheats the bottes to a temperature of about 1,050 degrees Fahrenheit then gradually cools them to about 390F. This process allows the glass to cool at an even rate - eliminating internal stresses in the glass that could lead to cracking or shattering. Bottles are then subjected to careful inspections to ensure they meet quality control guidelines. Any bottles showing imperfections, including bubbles, cracks, or misshapen areas, are removed from the line and used as cullet. All remaining bottles are sorted according to size and type. The bottles are then packaged on pallets and prepared for shipping.
For an infographic on the glass manufacturing process, click here: Infographic - From Grit to Glass, How Are Glass Bottles Made.
View the video: From Grit to Glass: How Glass Bottles are Made