How to Produce Shampoo Bottles in 2025: A Manufacturer’s Guide of the extrusion blow machines
Ready to produce shampoo bottles?
This 2025 guide covers everything from bottle design and HDPE plastic to the extrusion blow moulding process,
The extrusion blow moulding process is essential for creating durable and lightweight shampoo bottles.
solving common production problems, and choosing the right manufacturing partner.
Hi, I’m Slany Cheuang, a technical sales manager at Leka Machine.
A lot of my day is spent talking with clients who want to make bottles for household and personal-care liquids, and shampoo is one of the most common products.
It seems simple, but getting it right involves a lot of details.
Did you know that frequent color changes can dramatically increase your scrap rate? It’s a common headache for contract packaging plants that run multiple products and find it difficult to recruit skilled machine setters.
Understanding the extrusion blow moulding process can help in minimizing scrap rates.
This guide is here to walk you through the entire journey, from the initial design to a finished bottle ready for the shelf.
broken bottle
Before You Buy: Key Decisions in Bottle Design & Planning
Before you even think about a ko-ekstrusi, you need a plan for your bottle. The small details here will determine the equipment you need later.
Neck Finish: The design of the bottle’s neck is critical. It has to be precise to work with high-speed filling lines and ensure caps fit perfectly.
Bottle Shape and Weight: Your bottle’s shape is part of your brand. At the same time, there’s a big push toward lightweighting—making bottles 10-15% lighter without losing top-load strength to save on material costs.
Step 1: Choosing Your Material (HDPE, PCR, and More)
Bahan HDPE
For shampoo bottles, the industry standard is High-Density Polyethylene (HDPE). It’s the go-to choice for packaging everything from household liquids to lubricants and agrochemicals.
During the extrusion blow moulding process, HDPE is favored for its strength.
It’s a tough, lightweight, and versatile plastic that’s perfect for the job.
As sustainability becomes more important, manufacturers are also using materials like Post-Consumer Resin (PCR) and bio-plastics such as HDPE-BIO. A good machine needs to be able to handle these materials, too.
Step 2: Selecting Your Machine (The Extrusion Blow Moulder)
Blowing machines Screw
The workhorse behind shampoo bottle production is the Ekstrusi Blow Moulding (EBM) machine. My company, Leka Machine, specializes in these machines.
Choosing the right machine for the extrusion blow moulding process can significantly affect production efficiency.
When you’re looking for a machine, here are a few key features to ask about:
Higher Cavitation/Multi-Layer Capability: Using moulds with more cavities (higher cavitation) or machines that produce bottles with multiple layers can significantly cut down on resin costs and improve the bottle’s barrier properties.
multi-layer bottle reveal
Efisiensi Energi: With rising energy prices, looking for features like IE4 motors can make a big difference in your operating costs over the long run.
Step 3: The Core Production Process, Explained
In the extrusion blow moulding process, forming a parison is a critical step.
So, how does the machine actually make the bottle? Here’s a simple breakdown.
Blow Molding Machine Workflow
- Melting the Plastic: HDPE pellets are fed into the extruder and melted down.
- Forming the Parison: The machine forces the melted makanan plastik sangat ketat untuk aplikasi berisiko tinggi seperti kemasan susu dan daging. out through a die to form a hollow tube of plastic. This is called a parison.
- Blowing the Bottle: The parison is captured inside a two-sided bottle mould. Compressed air is then blown into the parison, pushing it against the mould walls to create the final bottle shape.
Once the parison is formed, the extrusion blow moulding process continues with blowing the bottle.
- Cooling & Ejection: The newly formed bottle is cooled and ejected from the machine.
- Finishing Touches: Modern production lines often include automatic deflashing to remove any excess plastic. Many also use in-mould labelling (IML), a feature highly valued by plants that handle many different products because it applies the label during the moulding process itself.
Solving Common Production Headaches
In the extrusion blow moulding process, addressing common production headaches efficiently is vital.
Every manufacturer runs into challenges. A good machine and partner should help you solve them. Here are a few common ones I hear about:
High Scrap on Color Change: This is a major pain point for plants running multiple products, especially when it’s hard to find skilled technicians who can manage the changeover efficiently.
Inconsistent Bottle Weight: This is a big problem. It can cause a bottle to fail kualitas tests, like the UN drop test for chemical drums. The solusi is a machine with excellent parison control and cavity-to-cavity weight monitoring.
Problems with Recycled PCR: Using a high percentage of Post-Consumer Resin is great for sustainability, but it can cause issues with inconsistent color and odor, as well as contamination from gels. You need equipment with good degassing and melt homogeneity to handle it.
Step 4: Quality Control and Finishing Your Bottles
The extrusion blow moulding process also includes essential quality control measures.
Your production process doesn’t end when the bottle is ejected. You need a plan for kualitas control.
For certain industries, like pharmaceuticals, this means meeting strict compliance standards from the US FDA and EU pharmacopoeia. For industrial products, it might mean passing a UN drop test. Many large-scale producers now want integrated systems for feeding regrind material back into the line and for online quality control.
How to Choose the Right Manufacturing Partner
Choosing a manufacturing partner familiar with the extrusion blow moulding process can enhance production outcomes.
Finding the right machine is only half the battle. You need a partner you can rely on.
Look for Turnkey Packages: New investors, especially, benefit from suppliers who provide a complete package: the machine, moulds, utilities, and hands-on operator training.
Check the Lead Time: Ask about delivery. It’s not uncommon for European machines to have a lead time of over 10 months. At Leka Machine, our standard delivery is 60-90 days.
Ask for a Trial Run: A confident supplier will be open to a factory audit and running a trial with your specific resin to prove their machine’s capability.
Kesimpulan
Producing shampoo bottles is a process that comes down to four key things: the right design, the right material, the right machine, and the right partner.
Understanding the extrusion blow moulding process is key to successful bottle production.
Anda need a partner who provides a full solution. That means fast delivery, training for your team, and equipment that can handle modern, sustainable materials efficiently. It’s about building a production line that works for you from day one.
If you’re ready to get started, I’m here to help you figure out the specifics. I’m Slany Cheuang from Leka Machine. Feel free to have a look at our equipment at
For detailed insights about the extrusion blow moulding process, feel free to reach out.
www.lekamachine.com
and reach out when you’re ready to talk
External links:
Extrusion Blow Molding vs. Injection Blow Molding – Xometry： https://www.xometry.com/resources/injection-molding/extrusion-blow-molding-vs-injection-blow-molding/
The extrusion blow moulding process is fundamentally different from other methods.
Blow Molds: An Introduction – Plastics Technology Online： https://www.ptonline.com/articles/blow-molds-an-introduction
What Is PET Plastic? A Look into the Versatile and Recyclable Material – Thomasnet： https://www.thomasnet.com/articles/plastics-rubber/all-about-pet-plastic/
Polietilen Densitas Tinggi (HDPE) – Wikipedia： https://en.wikipedia.org/wiki/High-density_polyethylene
Many manufacturers prefer the extrusion blow moulding process for its efficiency.
Apa Itu PCR? Panduan untuk Daur Ulang Plastik Pasca-Konsumsi – TricorBraun： https://www.tricorbraun.com/resources/blog/what-is-pcr-a-guide-to-post-consumer-recycled-plastics/
Panduan Desain APR® untuk Daur Ulang Plastik – Asosiasi Daur Ulang Plastik (APR)： https://plasticsrecycling.org/apr-design-guide
Secara ringkas, proses cetak tiup ekstrusi merupakan metode yang disukai untuk memproduksi berbagai plastik.
Pengenalan Label In-Mold (IML) – Dekorasi Plastik： https://plasticsdecorating.com/articles/2019/an-introduction-to-in-mold-labels-iml/
Memilih Tutup atau Penutup yang Tepat untuk Kemasan Anda – Kemasan Berlin： https://www.berlinpackaging.com/insights/choosing-the-right-cap-or-closure-for-your-packaging/
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