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REN-Flex offers the largest selection of in-mould labels and shrink labels in the South African market

REN-Flex is a company within the Ren-Form Group and prides itself on quality In-Mould Labelling (IML) products and solutions. 

Years of experience and expertise has resulted in a team of professionals who have a wealth of skills and knowledge in the injection moulding process. We can work in close collaboration with all moulders to help you convert to IML technology.

Market Applicatons:

Beverages (cut & stack only)
Food Products
Pharmaceutical Products
Cosmetic Products
Household Products
Petrochemical and Paint Products

In-Mould Labelling (IML)

What is IML?

In-mould labelling is the use of paper or plastic labels during the manufacturing of containers by blow moulding, injection moulding, or thermoforming processes. The label serves as an integral part of the final product, which is then delivered as a pre-decorated item. Combining the decoration process with the moulding process cuts the total cost, but can increase the manufacturing time.

Material for the part is fed into a heated barrel, mixed and forced into a mould cavity, where it cools and hardens to the configuration of the cavity.

a photo of the moulding machines
Shrink sleeve in action

Shrink Sleeve

What is Shrink Sleeve ?

Shrink sleeves are one of our most durable labelling products because they can be printed on plastic or polyester film material – perfect for products that encounter moisture or friction.

This is a favoured technique for small-to-medium-sized bottles of laundry detergent, fabric softener, and personal care products. Shrink sleeves provide 360-degree, high gloss graphics but require considerably more film material than either an in-mould or p-s label because of their overall coverage. It literally takes on the shape of the bottle or container.

A label sleeve is placed over the bottle before it travels through a heat tunnel to shrink the sleeve onto the bottle. Recycling of shrink-sleeved bottles is questionable unless they are known to be of the same plastic material. However, new recycling methods are continuously being researched and developed to ensure that the product is biodegradable and environmentally friendly.

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