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Your Guide to IML Phone Case Manufacturing UK

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Manufacturing

Phone Cases

Jul 31, 2017

Efficient and flawless customisation of phone cases has allowed the world’s leading manufacturers to thrive. Simultaneously, marketing experts are recognising the power of IML (In-Mould Labelling) as a means to boost sales and promote a brand. Here’s a look at the evolution of IML and the myriad advantages it offers phone case manufacturers. CustomLogoCases uses IML in the production of bespoke phone cases, so if you’d like more information about this method, get in touch with us—we’d be delighted to assist.

What is IML?

IML, or in-mould labelling, involves inserting a plastic or paper label into an open plastic injection mould. Also known as in-mould decorating (IMD), IML uses vacuum ports or an electrostatic charge to hold a label in place, ensuring precise placement and positioning. A heat-resistant lacquer is then applied to permanently seal the mould and encapsulate the label. The key elements of the IML process are:

  • IML merges the labelling and moulding processes.
  • The label becomes an integral part of the finished product.
  • IML reduces manufacturing time and costs.

When did IML become popular?

IML first appeared in the 1970s when manufacturers sought alternatives to traditional decals and labels. Initially designed for blow moulding, IML technology was first used in shampoo bottle production to allow pre-labelled bottles to be quickly filled on the assembly line. In recent years, IML has become a preferred choice for consumer electronics manufacturers looking to customise their products. As manufacturers experience the many benefits of IML, they are increasingly opting for it over painting, pad printing, dipped coating, and other post-production decorating methods.

How is IML used in the phone case manufacturing industry?

IML is increasingly used by phone case manufacturers seeking a professional, wear-resistant method of customising cases for consumers. Most applications involve second surface graphics and the printing of designs or logos on the back of an acrylic or polycarbonate substrate. Manufacturers using IML employ vision systems to ensure the accuracy of labels and their correct positioning on phone cases.

woman's hand holding an IML phone case on iPhone

What are the specific benefits for phone case manufacturers who use IML?

IML offers phone case manufacturers unparalleled efficiency, design accuracy, and flexibility. Most importantly, the single-step design of IML ensures accurate customisation, leading to enhanced consumer satisfaction. Here are twelve specific benefits of using IML in phone case manufacturing:

  1. Increased efficiency.

    Quick turnaround times are crucial for phone case manufacturers. Clients expect bulk orders to be completed swiftly. The IML process facilitates the production of hundreds or thousands of custom phone cases quickly, enabling prompt order fulfilment.

  2. Fewer design errors.

    The single-step, automated approach of IML virtually eliminates design-related errors on phone cases. Misspellings, smudges, inconsistent designs, and asymmetry are avoided if the initial label is accurately produced.

  3. A professional appearance.

    The IML process enhances print quality and protects high-resolution images. It offers tighter tolerances and superior graphics compared to other customisation techniques. High-quality images combined with an error-free approach ensure a professional-looking phone case.

  4. Durability and strength.

    Mobile phone cases endure constant use and exposure to environmental elements. IML phone cases are highly resistant to temperature changes, reducing the risk of cracking or discolouration. Additionally, in-mould labels are protected from wrinkling and scratching.

  5. Heightened consumer demand for customised phone cases.

    Over 75% of mobile phone users use a case to protect their phones. As mobile providers expand into emerging markets, the demand for customised phone cases is expected to grow.

  6. High visibility.

    Studies show that people check their phones billions of times each day. Manufacturers and marketers recognise the advertising potential of IML phone cases.

  7. Cost savings.

    Customising phone cases after they are manufactured can be costly. By eliminating the need for additional decorating steps, IML saves manufacturers time and money. The injection moulding process handles the entire customisation, reducing costs for both manufacturers and consumers.

  8. Artistic flexibility.

    IML showcases designs of any colour, pattern, or logo professionally. Consumers can choose phone cases featuring their favourite teams, brands, or designs. IML can be used for phone cases of all shapes and sizes without obstructing phone controls and ports.

  9. Design protection.

    The protective resin that seals the injection mould fully envelops phone cases, adding an extra layer of protection for the design or logo. Dust, debris, and scratches are less likely to affect IML phone cases.

  10. Environmentally friendly construction.

    IML is gaining popularity among eco-conscious phone case manufacturers. The case and label use the same materials, eliminating the need to remove labels before recycling.

  11. Easy to change designs.

    Manufacturers who like to feature various designs, patterns, and colours can easily switch their applications with IML. Adjustments can be made swiftly to produce seasonal designs or new looks.

  12. Marketing appeal.

    The highly visible nature of phone cases combined with the ability to customise with any brand or design makes IML a top choice for marketing professionals seeking effective advertising methods.

How can I find the best IML phone case manufacturer?

Not all phone case manufacturers offer IML technology. To find a reliable provider, evaluate manufacturers carefully before placing your order. Here are some key questions to ask:

  • Does your company use IML technology for custom phone cases?
  • Can you handle my order volume? (Specify the number of units required.)
  • Can you provide a free mock-up design?
  • What warranty or guarantee do you offer?
  • Do you have any minimum order requirements? If so, what are they?
  • How quickly can I expect to receive my order?
  • Can you provide references in my area?

Asking these questions will help ensure you purchase your IML phone cases from a trustworthy source and know what to expect with your first order.

Final Considerations

IML phone cases offer numerous advantages to manufacturers and consumers alike. From their durable construction to their efficient, cost-effective production, phone cases made with IML technology are becoming increasingly popular, particularly compared to cases customised after manufacturing. When choosing a manufacturer, be sure to evaluate providers carefully to ensure they use IML technology and request a free mock-up to experience the professional appearance of a customised IML phone case.

CustomLogoCases offers a wide range of custom phone cases, and we use IML phone case manufacturing depending on factors such as quantities, artwork requirements, and more. Explore our range of custom phone cases to find a style that suits your company or design.

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4 hours ago
Customlogocases.com
Its the MOST wonderful time of the year at Custom Logo Cases! Were hard at work preparing custom sleeves and cases for the upcoming 2026-2027 school year. Beat the summer rush and order now for delivery before school starts! 📚✏📗🧳🚌🏫
#backtoschool #schoollife #SchoolYearReady #schooltechnology #laptopbag #chromebookbag #macbookcase

It's the MOST wonderful time of the year at Custom Logo Cases! We're hard at work preparing custom sleeves and cases for the upcoming 2026-2027 school year. Beat the summer rush and order now for delivery before school starts! 📚✏📗🧳🚌🏫
#backtoschool #schoollife #SchoolYearReady #SchoolTechnology #laptopbag #chromebookbag #macbookcase
... See MoreSee Less

1 month ago
Customlogocases.com
🚨 Attention K-12 Tech Directors & Admins! 🚨
Secure your 2026-2027 deployment before the summer rush.
We just launched our new, ultra-rugged 360° Protection Case built specifically for K-12 Chromebooks and the Apple Neo.
Why This Case?
Drop-Proof: Military-grade 360-degree shock absorption.
Student-Proof: Reinforced corners and pick-resistant port covers.
Versatile: Full rotation for tablet and laptop modes.
⏱️ Act Fast for August Delivery ‼️‼️
Supply chains tighten drastically by June. Order by May 31st to guarantee delivery and tagging before students return this August 2026.

🚨 Attention K-12 Tech Directors & Admins! 🚨
Secure your 2026-2027 deployment before the summer rush.
We just launched our new, ultra-rugged 360° Protection Case built specifically for K-12 Chromebooks and the Apple Neo.
Why This Case?
Drop-Proof: Military-grade 360-degree shock absorption.
Student-Proof: Reinforced corners and pick-resistant port covers.
Versatile: Full rotation for tablet and laptop modes.
⏱️ Act Fast for August Delivery ‼️‼️
Supply chains tighten drastically by June. Order by May 31st to guarantee delivery and tagging before students return this August 2026.
... See MoreSee Less

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